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* jQuery JavaScript Library v3.1.1\n * https://jquery.com/\n *\n * Includes Sizzle.js\n * https://sizzlejs.com/\n *\n * Copyright jQuery Foundation and other contributors\n * Released under the MIT license\n * https://jquery.org/license\n *\n * Date: 2016-09-22T22:30Z\n */\n( function( global, factory ) {\n\n\t\"use strict\";\n\n\tif ( typeof module === \"object\" && typeof module.exports === \"object\" ) {\n\n\t\t// For CommonJS and CommonJS-like environments where a proper `window`\n\t\t// is present, execute the factory and get jQuery.\n\t\t// For environments that do not have a `window` with a `document`\n\t\t// (such as Node.js), expose a factory as module.exports.\n\t\t// This accentuates the need for the creation of a real `window`.\n\t\t// e.g. var jQuery = require(\"jquery\")(window);\n\t\t// See ticket #14549 for more info.\n\t\tmodule.exports = global.document ?\n\t\t\tfactory( global, true ) :\n\t\t\tfunction( w ) {\n\t\t\t\tif ( !w.document ) {\n\t\t\t\t\tthrow new Error( \"jQuery requires a window with a document\" );\n\t\t\t\t}\n\t\t\t\treturn factory( w );\n\t\t\t};\n\t} else {\n\t\tfactory( global );\n\t}\n\n// Pass this if window is not defined yet\n} )( typeof window !== \"undefined\" ? window : this, function( window, noGlobal ) {\n\n// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1\n// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode\n// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common\n// enough that all such attempts are guarded in a try block.\n\"use strict\";\n\nvar arr = [];\n\nvar document = window.document;\n\nvar getProto = Object.getPrototypeOf;\n\nvar slice = arr.slice;\n\nvar concat = arr.concat;\n\nvar push = arr.push;\n\nvar indexOf = arr.indexOf;\n\nvar class2type = {};\n\nvar toString = class2type.toString;\n\nvar hasOwn = class2type.hasOwnProperty;\n\nvar fnToString = hasOwn.toString;\n\nvar ObjectFunctionString = fnToString.call( Object );\n\nvar support = {};\n\n\n\n\tfunction DOMEval( code, doc ) {\n\t\tdoc = doc || document;\n\n\t\tvar script = doc.createElement( \"script\" );\n\n\t\tscript.text = code;\n\t\tdoc.head.appendChild( script ).parentNode.removeChild( script );\n\t}\n/* global Symbol */\n// Defining this global in .eslintrc.json would create a danger of using the global\n// unguarded in another place, it seems safer to define global only for this module\n\n\n\nvar\n\tversion = \"3.1.1\",\n\n\t// Define a local copy of jQuery\n\tjQuery = function( selector, context ) {\n\n\t\t// The jQuery object is actually just the init constructor 'enhanced'\n\t\t// Need init if jQuery is called (just allow error to be thrown if not included)\n\t\treturn new jQuery.fn.init( selector, context );\n\t},\n\n\t// Support: Android <=4.0 only\n\t// Make sure we trim BOM and NBSP\n\trtrim = /^[\\s\\uFEFF\\xA0]+|[\\s\\uFEFF\\xA0]+$/g,\n\n\t// Matches dashed string for camelizing\n\trmsPrefix = /^-ms-/,\n\trdashAlpha = /-([a-z])/g,\n\n\t// Used by jQuery.camelCase as callback to replace()\n\tfcamelCase = function( all, letter ) {\n\t\treturn letter.toUpperCase();\n\t};\n\njQuery.fn = jQuery.prototype = {\n\n\t// The current version of jQuery being used\n\tjquery: version,\n\n\tconstructor: jQuery,\n\n\t// The default length of a jQuery object is 0\n\tlength: 0,\n\n\ttoArray: function() {\n\t\treturn slice.call( this );\n\t},\n\n\t// Get the Nth element in the matched element set OR\n\t// Get the whole matched element set as a clean array\n\tget: function( num ) {\n\n\t\t// Return all the elements in a clean array\n\t\tif ( num == null ) {\n\t\t\treturn slice.call( this );\n\t\t}\n\n\t\t// Return just the one element from the set\n\t\treturn num < 0 ? this[ num + this.length ] : this[ num ];\n\t},\n\n\t// Take an array of elements and push it onto the stack\n\t// (returning the new matched element set)\n\tpushStack: function( elems ) {\n\n\t\t// Build a new jQuery matched element set\n\t\tvar ret = jQuery.merge( this.constructor(), elems );\n\n\t\t// Add the old object onto the stack (as a reference)\n\t\tret.prevObject = this;\n\n\t\t// Return the newly-formed element set\n\t\treturn ret;\n\t},\n\n\t// Execute a callback for every element in the matched set.\n\teach: function( callback ) {\n\t\treturn jQuery.each( this, callback );\n\t},\n\n\tmap: function( callback ) {\n\t\treturn this.pushStack( jQuery.map( this, function( elem, i ) {\n\t\t\treturn callback.call( elem, i, elem );\n\t\t} ) );\n\t},\n\n\tslice: function() {\n\t\treturn this.pushStack( slice.apply( this, arguments ) );\n\t},\n\n\tfirst: function() {\n\t\treturn this.eq( 0 );\n\t},\n\n\tlast: function() {\n\t\treturn this.eq( -1 );\n\t},\n\n\teq: function( i ) {\n\t\tvar len = this.length,\n\t\t\tj = +i + ( i < 0 ? len : 0 );\n\t\treturn this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );\n\t},\n\n\tend: function() {\n\t\treturn this.prevObject || this.constructor();\n\t},\n\n\t// For internal use only.\n\t// Behaves like an Array's method, not like a jQuery method.\n\tpush: push,\n\tsort: arr.sort,\n\tsplice: arr.splice\n};\n\njQuery.extend = jQuery.fn.extend = function() {\n\tvar options, name, src, copy, copyIsArray, clone,\n\t\ttarget = arguments[ 0 ] || {},\n\t\ti = 1,\n\t\tlength = arguments.length,\n\t\tdeep = false;\n\n\t// Handle a deep copy situation\n\tif ( typeof target === \"boolean\" ) {\n\t\tdeep = target;\n\n\t\t// Skip the boolean and the target\n\t\ttarget = arguments[ i ] || {};\n\t\ti++;\n\t}\n\n\t// Handle case when target is a string or something (possible in deep copy)\n\tif ( typeof target !== \"object\" && !jQuery.isFunction( target ) ) {\n\t\ttarget = {};\n\t}\n\n\t// Extend jQuery itself if only one argument is passed\n\tif ( i === length ) {\n\t\ttarget = this;\n\t\ti--;\n\t}\n\n\tfor ( ; i < length; i++ ) {\n\n\t\t// Only deal with non-null/undefined values\n\t\tif ( ( options = arguments[ i ] ) != null ) {\n\n\t\t\t// Extend the base object\n\t\t\tfor ( name in options ) {\n\t\t\t\tsrc = target[ name ];\n\t\t\t\tcopy = options[ name ];\n\n\t\t\t\t// Prevent never-ending loop\n\t\t\t\tif ( target === copy ) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\t// Recurse if we're merging plain objects or arrays\n\t\t\t\tif ( deep && copy && ( jQuery.isPlainObject( copy ) ||\n\t\t\t\t\t( copyIsArray = jQuery.isArray( copy ) ) ) ) {\n\n\t\t\t\t\tif ( copyIsArray ) {\n\t\t\t\t\t\tcopyIsArray = false;\n\t\t\t\t\t\tclone = src && jQuery.isArray( src ) ? src : [];\n\n\t\t\t\t\t} else {\n\t\t\t\t\t\tclone = src && jQuery.isPlainObject( src ) ? src : {};\n\t\t\t\t\t}\n\n\t\t\t\t\t// Never move original objects, clone them\n\t\t\t\t\ttarget[ name ] = jQuery.extend( deep, clone, copy );\n\n\t\t\t\t// Don't bring in undefined values\n\t\t\t\t} else if ( copy !== undefined ) {\n\t\t\t\t\ttarget[ name ] = copy;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// Return the modified object\n\treturn target;\n};\n\njQuery.extend( {\n\n\t// Unique for each copy of jQuery on the page\n\texpando: \"jQuery\" + ( version + Math.random() ).replace( /\\D/g, \"\" ),\n\n\t// Assume jQuery is ready without the ready module\n\tisReady: true,\n\n\terror: function( msg ) {\n\t\tthrow new Error( msg );\n\t},\n\n\tnoop: function() {},\n\n\tisFunction: function( obj ) {\n\t\treturn jQuery.type( obj ) === \"function\";\n\t},\n\n\tisArray: Array.isArray,\n\n\tisWindow: function( obj ) {\n\t\treturn obj != null && obj === obj.window;\n\t},\n\n\tisNumeric: function( obj ) {\n\n\t\t// As of jQuery 3.0, isNumeric is limited to\n\t\t// strings and numbers (primitives or objects)\n\t\t// that can be coerced to finite numbers (gh-2662)\n\t\tvar type = jQuery.type( obj );\n\t\treturn ( type === \"number\" || type === \"string\" ) &&\n\n\t\t\t// parseFloat NaNs numeric-cast false positives (\"\")\n\t\t\t// ...but misinterprets leading-number strings, particularly hex literals (\"0x...\")\n\t\t\t// subtraction forces infinities to NaN\n\t\t\t!isNaN( obj - parseFloat( obj ) );\n\t},\n\n\tisPlainObject: function( obj ) {\n\t\tvar proto, Ctor;\n\n\t\t// Detect obvious negatives\n\t\t// Use toString instead of jQuery.type to catch host objects\n\t\tif ( !obj || toString.call( obj ) !== \"[object Object]\" ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tproto = getProto( obj );\n\n\t\t// Objects with no prototype (e.g., `Object.create( null )`) are plain\n\t\tif ( !proto ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Objects with prototype are plain iff they were constructed by a global Object function\n\t\tCtor = hasOwn.call( proto, \"constructor\" ) && proto.constructor;\n\t\treturn typeof Ctor === \"function\" && fnToString.call( Ctor ) === ObjectFunctionString;\n\t},\n\n\tisEmptyObject: function( obj ) {\n\n\t\t/* eslint-disable no-unused-vars */\n\t\t// See https://github.com/eslint/eslint/issues/6125\n\t\tvar name;\n\n\t\tfor ( name in obj ) {\n\t\t\treturn false;\n\t\t}\n\t\treturn true;\n\t},\n\n\ttype: function( obj ) {\n\t\tif ( obj == null ) {\n\t\t\treturn obj + \"\";\n\t\t}\n\n\t\t// Support: Android <=2.3 only (functionish RegExp)\n\t\treturn typeof obj === \"object\" || typeof obj === \"function\" ?\n\t\t\tclass2type[ toString.call( obj ) ] || \"object\" :\n\t\t\ttypeof obj;\n\t},\n\n\t// Evaluates a script in a global context\n\tglobalEval: function( code ) {\n\t\tDOMEval( code );\n\t},\n\n\t// Convert dashed to camelCase; used by the css and data modules\n\t// Support: IE <=9 - 11, Edge 12 - 13\n\t// Microsoft forgot to hump their vendor prefix (#9572)\n\tcamelCase: function( string ) {\n\t\treturn string.replace( rmsPrefix, \"ms-\" ).replace( rdashAlpha, fcamelCase );\n\t},\n\n\tnodeName: function( elem, name ) {\n\t\treturn elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();\n\t},\n\n\teach: function( obj, callback ) {\n\t\tvar length, i = 0;\n\n\t\tif ( isArrayLike( obj ) ) {\n\t\t\tlength = obj.length;\n\t\t\tfor ( ; i < length; i++ ) {\n\t\t\t\tif ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t} else {\n\t\t\tfor ( i in obj ) {\n\t\t\t\tif ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn obj;\n\t},\n\n\t// Support: Android <=4.0 only\n\ttrim: function( text ) {\n\t\treturn text == null ?\n\t\t\t\"\" :\n\t\t\t( text + \"\" ).replace( rtrim, \"\" );\n\t},\n\n\t// results is for internal usage only\n\tmakeArray: function( arr, results ) {\n\t\tvar ret = results || [];\n\n\t\tif ( arr != null ) {\n\t\t\tif ( isArrayLike( Object( arr ) ) ) {\n\t\t\t\tjQuery.merge( ret,\n\t\t\t\t\ttypeof arr === \"string\" ?\n\t\t\t\t\t[ arr ] : arr\n\t\t\t\t);\n\t\t\t} else {\n\t\t\t\tpush.call( ret, arr );\n\t\t\t}\n\t\t}\n\n\t\treturn ret;\n\t},\n\n\tinArray: function( elem, arr, i ) {\n\t\treturn arr == null ? -1 : indexOf.call( arr, elem, i );\n\t},\n\n\t// Support: Android <=4.0 only, PhantomJS 1 only\n\t// push.apply(_, arraylike) throws on ancient WebKit\n\tmerge: function( first, second ) {\n\t\tvar len = +second.length,\n\t\t\tj = 0,\n\t\t\ti = first.length;\n\n\t\tfor ( ; j < len; j++ ) {\n\t\t\tfirst[ i++ ] = second[ j ];\n\t\t}\n\n\t\tfirst.length = i;\n\n\t\treturn first;\n\t},\n\n\tgrep: function( elems, callback, invert ) {\n\t\tvar callbackInverse,\n\t\t\tmatches = [],\n\t\t\ti = 0,\n\t\t\tlength = elems.length,\n\t\t\tcallbackExpect = !invert;\n\n\t\t// Go through the array, only saving the items\n\t\t// that pass the validator function\n\t\tfor ( ; i < length; i++ ) {\n\t\t\tcallbackInverse = !callback( elems[ i ], i );\n\t\t\tif ( callbackInverse !== callbackExpect ) {\n\t\t\t\tmatches.push( elems[ i ] );\n\t\t\t}\n\t\t}\n\n\t\treturn matches;\n\t},\n\n\t// arg is for internal usage only\n\tmap: function( elems, callback, arg ) {\n\t\tvar length, value,\n\t\t\ti = 0,\n\t\t\tret = [];\n\n\t\t// Go through the array, translating each of the items to their new values\n\t\tif ( isArrayLike( elems ) ) {\n\t\t\tlength = elems.length;\n\t\t\tfor ( ; i < length; i++ ) {\n\t\t\t\tvalue = callback( elems[ i ], i, arg );\n\n\t\t\t\tif ( value != null ) {\n\t\t\t\t\tret.push( value );\n\t\t\t\t}\n\t\t\t}\n\n\t\t// Go through every key on the object,\n\t\t} else {\n\t\t\tfor ( i in elems ) {\n\t\t\t\tvalue = callback( elems[ i ], i, arg );\n\n\t\t\t\tif ( value != null ) {\n\t\t\t\t\tret.push( value );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Flatten any nested arrays\n\t\treturn concat.apply( [], ret );\n\t},\n\n\t// A global GUID counter for objects\n\tguid: 1,\n\n\t// Bind a function to a context, optionally partially applying any\n\t// arguments.\n\tproxy: function( fn, context ) {\n\t\tvar tmp, args, proxy;\n\n\t\tif ( typeof context === \"string\" ) {\n\t\t\ttmp = fn[ context ];\n\t\t\tcontext = fn;\n\t\t\tfn = tmp;\n\t\t}\n\n\t\t// Quick check to determine if target is callable, in the spec\n\t\t// this throws a TypeError, but we will just return undefined.\n\t\tif ( !jQuery.isFunction( fn ) ) {\n\t\t\treturn undefined;\n\t\t}\n\n\t\t// Simulated bind\n\t\targs = slice.call( arguments, 2 );\n\t\tproxy = function() {\n\t\t\treturn fn.apply( context || this, args.concat( slice.call( arguments ) ) );\n\t\t};\n\n\t\t// Set the guid of unique handler to the same of original handler, so it can be removed\n\t\tproxy.guid = fn.guid = fn.guid || jQuery.guid++;\n\n\t\treturn proxy;\n\t},\n\n\tnow: Date.now,\n\n\t// jQuery.support is not used in Core but other projects attach their\n\t// properties to it so it needs to exist.\n\tsupport: support\n} );\n\nif ( typeof Symbol === \"function\" ) {\n\tjQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];\n}\n\n// Populate the class2type map\njQuery.each( \"Boolean Number String Function Array Date RegExp Object Error Symbol\".split( \" \" ),\nfunction( i, name ) {\n\tclass2type[ \"[object \" + name + \"]\" ] = name.toLowerCase();\n} );\n\nfunction isArrayLike( obj ) {\n\n\t// Support: real iOS 8.2 only (not reproducible in simulator)\n\t// `in` check used to prevent JIT error (gh-2145)\n\t// hasOwn isn't used here due to false negatives\n\t// regarding Nodelist length in IE\n\tvar length = !!obj && \"length\" in obj && obj.length,\n\t\ttype = jQuery.type( obj );\n\n\tif ( type === \"function\" || jQuery.isWindow( obj ) ) {\n\t\treturn false;\n\t}\n\n\treturn type === \"array\" || length === 0 ||\n\t\ttypeof length === \"number\" && length > 0 && ( length - 1 ) in obj;\n}\nvar Sizzle =\n/*!\n * Sizzle CSS Selector Engine v2.3.3\n * https://sizzlejs.com/\n *\n * Copyright jQuery Foundation and other contributors\n * Released under the MIT license\n * http://jquery.org/license\n *\n * Date: 2016-08-08\n */\n(function( window ) {\n\nvar i,\n\tsupport,\n\tExpr,\n\tgetText,\n\tisXML,\n\ttokenize,\n\tcompile,\n\tselect,\n\toutermostContext,\n\tsortInput,\n\thasDuplicate,\n\n\t// Local document vars\n\tsetDocument,\n\tdocument,\n\tdocElem,\n\tdocumentIsHTML,\n\trbuggyQSA,\n\trbuggyMatches,\n\tmatches,\n\tcontains,\n\n\t// Instance-specific data\n\texpando = \"sizzle\" + 1 * new Date(),\n\tpreferredDoc = window.document,\n\tdirruns = 0,\n\tdone = 0,\n\tclassCache = createCache(),\n\ttokenCache = createCache(),\n\tcompilerCache = createCache(),\n\tsortOrder = function( a, b ) {\n\t\tif ( a === b ) {\n\t\t\thasDuplicate = true;\n\t\t}\n\t\treturn 0;\n\t},\n\n\t// Instance methods\n\thasOwn = ({}).hasOwnProperty,\n\tarr = [],\n\tpop = arr.pop,\n\tpush_native = arr.push,\n\tpush = arr.push,\n\tslice = arr.slice,\n\t// Use a stripped-down indexOf as it's faster than native\n\t// https://jsperf.com/thor-indexof-vs-for/5\n\tindexOf = function( list, elem ) {\n\t\tvar i = 0,\n\t\t\tlen = list.length;\n\t\tfor ( ; i < len; i++ ) {\n\t\t\tif ( list[i] === elem ) {\n\t\t\t\treturn i;\n\t\t\t}\n\t\t}\n\t\treturn -1;\n\t},\n\n\tbooleans = \"checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped\",\n\n\t// Regular expressions\n\n\t// http://www.w3.org/TR/css3-selectors/#whitespace\n\twhitespace = \"[\\\\x20\\\\t\\\\r\\\\n\\\\f]\",\n\n\t// http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier\n\tidentifier = \"(?:\\\\\\\\.|[\\\\w-]|[^\\0-\\\\xa0])+\",\n\n\t// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors\n\tattributes = \"\\\\[\" + whitespace + \"*(\" + identifier + \")(?:\" + whitespace +\n\t\t// Operator (capture 2)\n\t\t\"*([*^$|!~]?=)\" + whitespace +\n\t\t// \"Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]\"\n\t\t\"*(?:'((?:\\\\\\\\.|[^\\\\\\\\'])*)'|\\\"((?:\\\\\\\\.|[^\\\\\\\\\\\"])*)\\\"|(\" + identifier + \"))|)\" + whitespace +\n\t\t\"*\\\\]\",\n\n\tpseudos = \":(\" + identifier + \")(?:\\\\((\" +\n\t\t// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:\n\t\t// 1. quoted (capture 3; capture 4 or capture 5)\n\t\t\"('((?:\\\\\\\\.|[^\\\\\\\\'])*)'|\\\"((?:\\\\\\\\.|[^\\\\\\\\\\\"])*)\\\")|\" +\n\t\t// 2. simple (capture 6)\n\t\t\"((?:\\\\\\\\.|[^\\\\\\\\()[\\\\]]|\" + attributes + \")*)|\" +\n\t\t// 3. anything else (capture 2)\n\t\t\".*\" +\n\t\t\")\\\\)|)\",\n\n\t// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter\n\trwhitespace = new RegExp( whitespace + \"+\", \"g\" ),\n\trtrim = new RegExp( \"^\" + whitespace + \"+|((?:^|[^\\\\\\\\])(?:\\\\\\\\.)*)\" + whitespace + \"+$\", \"g\" ),\n\n\trcomma = new RegExp( \"^\" + whitespace + \"*,\" + whitespace + \"*\" ),\n\trcombinators = new RegExp( \"^\" + whitespace + \"*([>+~]|\" + whitespace + \")\" + whitespace + \"*\" ),\n\n\trattributeQuotes = new RegExp( \"=\" + whitespace + \"*([^\\\\]'\\\"]*?)\" + whitespace + \"*\\\\]\", \"g\" ),\n\n\trpseudo = new RegExp( pseudos ),\n\tridentifier = new RegExp( \"^\" + identifier + \"$\" ),\n\n\tmatchExpr = {\n\t\t\"ID\": new RegExp( \"^#(\" + identifier + \")\" ),\n\t\t\"CLASS\": new RegExp( \"^\\\\.(\" + identifier + \")\" ),\n\t\t\"TAG\": new RegExp( \"^(\" + identifier + \"|[*])\" ),\n\t\t\"ATTR\": new RegExp( \"^\" + attributes ),\n\t\t\"PSEUDO\": new RegExp( \"^\" + pseudos ),\n\t\t\"CHILD\": new RegExp( \"^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\\\(\" + whitespace +\n\t\t\t\"*(even|odd|(([+-]|)(\\\\d*)n|)\" + whitespace + \"*(?:([+-]|)\" + whitespace +\n\t\t\t\"*(\\\\d+)|))\" + whitespace + \"*\\\\)|)\", \"i\" ),\n\t\t\"bool\": new RegExp( \"^(?:\" + booleans + \")$\", \"i\" ),\n\t\t// For use in libraries implementing .is()\n\t\t// We use this for POS matching in `select`\n\t\t\"needsContext\": new RegExp( \"^\" + whitespace + \"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\\\(\" +\n\t\t\twhitespace + \"*((?:-\\\\d)?\\\\d*)\" + whitespace + \"*\\\\)|)(?=[^-]|$)\", \"i\" )\n\t},\n\n\trinputs = /^(?:input|select|textarea|button)$/i,\n\trheader = /^h\\d$/i,\n\n\trnative = /^[^{]+\\{\\s*\\[native \\w/,\n\n\t// Easily-parseable/retrievable ID or TAG or CLASS selectors\n\trquickExpr = /^(?:#([\\w-]+)|(\\w+)|\\.([\\w-]+))$/,\n\n\trsibling = /[+~]/,\n\n\t// CSS escapes\n\t// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters\n\trunescape = new RegExp( \"\\\\\\\\([\\\\da-f]{1,6}\" + whitespace + \"?|(\" + whitespace + \")|.)\", \"ig\" ),\n\tfunescape = function( _, escaped, escapedWhitespace ) {\n\t\tvar high = \"0x\" + escaped - 0x10000;\n\t\t// NaN means non-codepoint\n\t\t// Support: Firefox<24\n\t\t// Workaround erroneous numeric interpretation of +\"0x\"\n\t\treturn high !== high || escapedWhitespace ?\n\t\t\tescaped :\n\t\t\thigh < 0 ?\n\t\t\t\t// BMP codepoint\n\t\t\t\tString.fromCharCode( high + 0x10000 ) :\n\t\t\t\t// Supplemental Plane codepoint (surrogate pair)\n\t\t\t\tString.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );\n\t},\n\n\t// CSS string/identifier serialization\n\t// https://drafts.csswg.org/cssom/#common-serializing-idioms\n\trcssescape = /([\\0-\\x1f\\x7f]|^-?\\d)|^-$|[^\\0-\\x1f\\x7f-\\uFFFF\\w-]/g,\n\tfcssescape = function( ch, asCodePoint ) {\n\t\tif ( asCodePoint ) {\n\n\t\t\t// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER\n\t\t\tif ( ch === \"\\0\" ) {\n\t\t\t\treturn \"\\uFFFD\";\n\t\t\t}\n\n\t\t\t// Control characters and (dependent upon position) numbers get escaped as code points\n\t\t\treturn ch.slice( 0, -1 ) + \"\\\\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + \" \";\n\t\t}\n\n\t\t// Other potentially-special ASCII characters get backslash-escaped\n\t\treturn \"\\\\\" + ch;\n\t},\n\n\t// Used for iframes\n\t// See setDocument()\n\t// Removing the function wrapper causes a \"Permission Denied\"\n\t// error in IE\n\tunloadHandler = function() {\n\t\tsetDocument();\n\t},\n\n\tdisabledAncestor = addCombinator(\n\t\tfunction( elem ) {\n\t\t\treturn elem.disabled === true && (\"form\" in elem || \"label\" in elem);\n\t\t},\n\t\t{ dir: \"parentNode\", next: \"legend\" }\n\t);\n\n// Optimize for push.apply( _, NodeList )\ntry {\n\tpush.apply(\n\t\t(arr = slice.call( preferredDoc.childNodes )),\n\t\tpreferredDoc.childNodes\n\t);\n\t// Support: Android<4.0\n\t// Detect silently failing push.apply\n\tarr[ preferredDoc.childNodes.length ].nodeType;\n} catch ( e ) {\n\tpush = { apply: arr.length ?\n\n\t\t// Leverage slice if possible\n\t\tfunction( target, els ) {\n\t\t\tpush_native.apply( target, slice.call(els) );\n\t\t} :\n\n\t\t// Support: IE<9\n\t\t// Otherwise append directly\n\t\tfunction( target, els ) {\n\t\t\tvar j = target.length,\n\t\t\t\ti = 0;\n\t\t\t// Can't trust NodeList.length\n\t\t\twhile ( (target[j++] = els[i++]) ) {}\n\t\t\ttarget.length = j - 1;\n\t\t}\n\t};\n}\n\nfunction Sizzle( selector, context, results, seed ) {\n\tvar m, i, elem, nid, match, groups, newSelector,\n\t\tnewContext = context && context.ownerDocument,\n\n\t\t// nodeType defaults to 9, since context defaults to document\n\t\tnodeType = context ? context.nodeType : 9;\n\n\tresults = results || [];\n\n\t// Return early from calls with invalid selector or context\n\tif ( typeof selector !== \"string\" || !selector ||\n\t\tnodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {\n\n\t\treturn results;\n\t}\n\n\t// Try to shortcut find operations (as opposed to filters) in HTML documents\n\tif ( !seed ) {\n\n\t\tif ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {\n\t\t\tsetDocument( context );\n\t\t}\n\t\tcontext = context || document;\n\n\t\tif ( documentIsHTML ) {\n\n\t\t\t// If the selector is sufficiently simple, try using a \"get*By*\" DOM method\n\t\t\t// (excepting DocumentFragment context, where the methods don't exist)\n\t\t\tif ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {\n\n\t\t\t\t// ID selector\n\t\t\t\tif ( (m = match[1]) ) {\n\n\t\t\t\t\t// Document context\n\t\t\t\t\tif ( nodeType === 9 ) {\n\t\t\t\t\t\tif ( (elem = context.getElementById( m )) ) {\n\n\t\t\t\t\t\t\t// Support: IE, Opera, Webkit\n\t\t\t\t\t\t\t// TODO: identify versions\n\t\t\t\t\t\t\t// getElementById can match elements by name instead of ID\n\t\t\t\t\t\t\tif ( elem.id === m ) {\n\t\t\t\t\t\t\t\tresults.push( elem );\n\t\t\t\t\t\t\t\treturn results;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\treturn results;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t// Element context\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// Support: IE, Opera, Webkit\n\t\t\t\t\t\t// TODO: identify versions\n\t\t\t\t\t\t// getElementById can match elements by name instead of ID\n\t\t\t\t\t\tif ( newContext && (elem = newContext.getElementById( m )) &&\n\t\t\t\t\t\t\tcontains( context, elem ) &&\n\t\t\t\t\t\t\telem.id === m ) {\n\n\t\t\t\t\t\t\tresults.push( elem );\n\t\t\t\t\t\t\treturn results;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t// Type selector\n\t\t\t\t} else if ( match[2] ) {\n\t\t\t\t\tpush.apply( results, context.getElementsByTagName( selector ) );\n\t\t\t\t\treturn results;\n\n\t\t\t\t// Class selector\n\t\t\t\t} else if ( (m = match[3]) && support.getElementsByClassName &&\n\t\t\t\t\tcontext.getElementsByClassName ) {\n\n\t\t\t\t\tpush.apply( results, context.getElementsByClassName( m ) );\n\t\t\t\t\treturn results;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Take advantage of querySelectorAll\n\t\t\tif ( support.qsa &&\n\t\t\t\t!compilerCache[ selector + \" \" ] &&\n\t\t\t\t(!rbuggyQSA || !rbuggyQSA.test( selector )) ) {\n\n\t\t\t\tif ( nodeType !== 1 ) {\n\t\t\t\t\tnewContext = context;\n\t\t\t\t\tnewSelector = selector;\n\n\t\t\t\t// qSA looks outside Element context, which is not what we want\n\t\t\t\t// Thanks to Andrew Dupont for this workaround technique\n\t\t\t\t// Support: IE <=8\n\t\t\t\t// Exclude object elements\n\t\t\t\t} else if ( context.nodeName.toLowerCase() !== \"object\" ) {\n\n\t\t\t\t\t// Capture the context ID, setting it first if necessary\n\t\t\t\t\tif ( (nid = context.getAttribute( \"id\" )) ) {\n\t\t\t\t\t\tnid = nid.replace( rcssescape, fcssescape );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tcontext.setAttribute( \"id\", (nid = expando) );\n\t\t\t\t\t}\n\n\t\t\t\t\t// Prefix every selector in the list\n\t\t\t\t\tgroups = tokenize( selector );\n\t\t\t\t\ti = groups.length;\n\t\t\t\t\twhile ( i-- ) {\n\t\t\t\t\t\tgroups[i] = \"#\" + nid + \" \" + toSelector( groups[i] );\n\t\t\t\t\t}\n\t\t\t\t\tnewSelector = groups.join( \",\" );\n\n\t\t\t\t\t// Expand context for sibling selectors\n\t\t\t\t\tnewContext = rsibling.test( selector ) && testContext( context.parentNode ) ||\n\t\t\t\t\t\tcontext;\n\t\t\t\t}\n\n\t\t\t\tif ( newSelector ) {\n\t\t\t\t\ttry {\n\t\t\t\t\t\tpush.apply( results,\n\t\t\t\t\t\t\tnewContext.querySelectorAll( newSelector )\n\t\t\t\t\t\t);\n\t\t\t\t\t\treturn results;\n\t\t\t\t\t} catch ( qsaError ) {\n\t\t\t\t\t} finally {\n\t\t\t\t\t\tif ( nid === expando ) {\n\t\t\t\t\t\t\tcontext.removeAttribute( \"id\" );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// All others\n\treturn select( selector.replace( rtrim, \"$1\" ), context, results, seed );\n}\n\n/**\n * Create key-value caches of limited size\n * @returns {function(string, object)} Returns the Object data after storing it on itself with\n *\tproperty name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)\n *\tdeleting the oldest entry\n */\nfunction createCache() {\n\tvar keys = [];\n\n\tfunction cache( key, value ) {\n\t\t// Use (key + \" \") to avoid collision with native prototype properties (see Issue #157)\n\t\tif ( keys.push( key + \" \" ) > Expr.cacheLength ) {\n\t\t\t// Only keep the most recent entries\n\t\t\tdelete cache[ keys.shift() ];\n\t\t}\n\t\treturn (cache[ key + \" \" ] = value);\n\t}\n\treturn cache;\n}\n\n/**\n * Mark a function for special use by Sizzle\n * @param {Function} fn The function to mark\n */\nfunction markFunction( fn ) {\n\tfn[ expando ] = true;\n\treturn fn;\n}\n\n/**\n * Support testing using an element\n * @param {Function} fn Passed the created element and returns a boolean result\n */\nfunction assert( fn ) {\n\tvar el = document.createElement(\"fieldset\");\n\n\ttry {\n\t\treturn !!fn( el );\n\t} catch (e) {\n\t\treturn false;\n\t} finally {\n\t\t// Remove from its parent by default\n\t\tif ( el.parentNode ) {\n\t\t\tel.parentNode.removeChild( el );\n\t\t}\n\t\t// release memory in IE\n\t\tel = null;\n\t}\n}\n\n/**\n * Adds the same handler for all of the specified attrs\n * @param {String} attrs Pipe-separated list of attributes\n * @param {Function} handler The method that will be applied\n */\nfunction addHandle( attrs, handler ) {\n\tvar arr = attrs.split(\"|\"),\n\t\ti = arr.length;\n\n\twhile ( i-- ) {\n\t\tExpr.attrHandle[ arr[i] ] = handler;\n\t}\n}\n\n/**\n * Checks document order of two siblings\n * @param {Element} a\n * @param {Element} b\n * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b\n */\nfunction siblingCheck( a, b ) {\n\tvar cur = b && a,\n\t\tdiff = cur && a.nodeType === 1 && b.nodeType === 1 &&\n\t\t\ta.sourceIndex - b.sourceIndex;\n\n\t// Use IE sourceIndex if available on both nodes\n\tif ( diff ) {\n\t\treturn diff;\n\t}\n\n\t// Check if b follows a\n\tif ( cur ) {\n\t\twhile ( (cur = cur.nextSibling) ) {\n\t\t\tif ( cur === b ) {\n\t\t\t\treturn -1;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn a ? 1 : -1;\n}\n\n/**\n * Returns a function to use in pseudos for input types\n * @param {String} type\n */\nfunction createInputPseudo( type ) {\n\treturn function( elem ) {\n\t\tvar name = elem.nodeName.toLowerCase();\n\t\treturn name === \"input\" && elem.type === type;\n\t};\n}\n\n/**\n * Returns a function to use in pseudos for buttons\n * @param {String} type\n */\nfunction createButtonPseudo( type ) {\n\treturn function( elem ) {\n\t\tvar name = elem.nodeName.toLowerCase();\n\t\treturn (name === \"input\" || name === \"button\") && elem.type === type;\n\t};\n}\n\n/**\n * Returns a function to use in pseudos for :enabled/:disabled\n * @param {Boolean} disabled true for :disabled; false for :enabled\n */\nfunction createDisabledPseudo( disabled ) {\n\n\t// Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable\n\treturn function( elem ) {\n\n\t\t// Only certain elements can match :enabled or :disabled\n\t\t// https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled\n\t\t// https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled\n\t\tif ( \"form\" in elem ) {\n\n\t\t\t// Check for inherited disabledness on relevant non-disabled elements:\n\t\t\t// * listed form-associated elements in a disabled fieldset\n\t\t\t//   https://html.spec.whatwg.org/multipage/forms.html#category-listed\n\t\t\t//   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled\n\t\t\t// * option elements in a disabled optgroup\n\t\t\t//   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled\n\t\t\t// All such elements have a \"form\" property.\n\t\t\tif ( elem.parentNode && elem.disabled === false ) {\n\n\t\t\t\t// Option elements defer to a parent optgroup if present\n\t\t\t\tif ( \"label\" in elem ) {\n\t\t\t\t\tif ( \"label\" in elem.parentNode ) {\n\t\t\t\t\t\treturn elem.parentNode.disabled === disabled;\n\t\t\t\t\t} else {\n\t\t\t\t\t\treturn elem.disabled === disabled;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Support: IE 6 - 11\n\t\t\t\t// Use the isDisabled shortcut property to check for disabled fieldset ancestors\n\t\t\t\treturn elem.isDisabled === disabled ||\n\n\t\t\t\t\t// Where there is no isDisabled, check manually\n\t\t\t\t\t/* jshint -W018 */\n\t\t\t\t\telem.isDisabled !== !disabled &&\n\t\t\t\t\t\tdisabledAncestor( elem ) === disabled;\n\t\t\t}\n\n\t\t\treturn elem.disabled === disabled;\n\n\t\t// Try to winnow out elements that can't be disabled before trusting the disabled property.\n\t\t// Some victims get caught in our net (label, legend, menu, track), but it shouldn't\n\t\t// even exist on them, let alone have a boolean value.\n\t\t} else if ( \"label\" in elem ) {\n\t\t\treturn elem.disabled === disabled;\n\t\t}\n\n\t\t// Remaining elements are neither :enabled nor :disabled\n\t\treturn false;\n\t};\n}\n\n/**\n * Returns a function to use in pseudos for positionals\n * @param {Function} fn\n */\nfunction createPositionalPseudo( fn ) {\n\treturn markFunction(function( argument ) {\n\t\targument = +argument;\n\t\treturn markFunction(function( seed, matches ) {\n\t\t\tvar j,\n\t\t\t\tmatchIndexes = fn( [], seed.length, argument ),\n\t\t\t\ti = matchIndexes.length;\n\n\t\t\t// Match elements found at the specified indexes\n\t\t\twhile ( i-- ) {\n\t\t\t\tif ( seed[ (j = matchIndexes[i]) ] ) {\n\t\t\t\t\tseed[j] = !(matches[j] = seed[j]);\n\t\t\t\t}\n\t\t\t}\n\t\t});\n\t});\n}\n\n/**\n * Checks a node for validity as a Sizzle context\n * @param {Element|Object=} context\n * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value\n */\nfunction testContext( context ) {\n\treturn context && typeof context.getElementsByTagName !== \"undefined\" && context;\n}\n\n// Expose support vars for convenience\nsupport = Sizzle.support = {};\n\n/**\n * Detects XML nodes\n * @param {Element|Object} elem An element or a document\n * @returns {Boolean} True iff elem is a non-HTML XML node\n */\nisXML = Sizzle.isXML = function( elem ) {\n\t// documentElement is verified for cases where it doesn't yet exist\n\t// (such as loading iframes in IE - #4833)\n\tvar documentElement = elem && (elem.ownerDocument || elem).documentElement;\n\treturn documentElement ? documentElement.nodeName !== \"HTML\" : false;\n};\n\n/**\n * Sets document-related variables once based on the current document\n * @param {Element|Object} [doc] An element or document object to use to set the document\n * @returns {Object} Returns the current document\n */\nsetDocument = Sizzle.setDocument = function( node ) {\n\tvar hasCompare, subWindow,\n\t\tdoc = node ? node.ownerDocument || node : preferredDoc;\n\n\t// Return early if doc is invalid or already selected\n\tif ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {\n\t\treturn document;\n\t}\n\n\t// Update global variables\n\tdocument = doc;\n\tdocElem = document.documentElement;\n\tdocumentIsHTML = !isXML( document );\n\n\t// Support: IE 9-11, Edge\n\t// Accessing iframe documents after unload throws \"permission denied\" errors (jQuery #13936)\n\tif ( preferredDoc !== document &&\n\t\t(subWindow = document.defaultView) && subWindow.top !== subWindow ) {\n\n\t\t// Support: IE 11, Edge\n\t\tif ( subWindow.addEventListener ) {\n\t\t\tsubWindow.addEventListener( \"unload\", unloadHandler, false );\n\n\t\t// Support: IE 9 - 10 only\n\t\t} else if ( subWindow.attachEvent ) {\n\t\t\tsubWindow.attachEvent( \"onunload\", unloadHandler );\n\t\t}\n\t}\n\n\t/* Attributes\n\t---------------------------------------------------------------------- */\n\n\t// Support: IE<8\n\t// Verify that getAttribute really returns attributes and not properties\n\t// (excepting IE8 booleans)\n\tsupport.attributes = assert(function( el ) {\n\t\tel.className = \"i\";\n\t\treturn !el.getAttribute(\"className\");\n\t});\n\n\t/* getElement(s)By*\n\t---------------------------------------------------------------------- */\n\n\t// Check if getElementsByTagName(\"*\") returns only elements\n\tsupport.getElementsByTagName = assert(function( el ) {\n\t\tel.appendChild( document.createComment(\"\") );\n\t\treturn !el.getElementsByTagName(\"*\").length;\n\t});\n\n\t// Support: IE<9\n\tsupport.getElementsByClassName = rnative.test( document.getElementsByClassName );\n\n\t// Support: IE<10\n\t// Check if getElementById returns elements by name\n\t// The broken getElementById methods don't pick up programmatically-set names,\n\t// so use a roundabout getElementsByName test\n\tsupport.getById = assert(function( el ) {\n\t\tdocElem.appendChild( el ).id = expando;\n\t\treturn !document.getElementsByName || !document.getElementsByName( expando ).length;\n\t});\n\n\t// ID filter and find\n\tif ( support.getById ) {\n\t\tExpr.filter[\"ID\"] = function( id ) {\n\t\t\tvar attrId = id.replace( runescape, funescape );\n\t\t\treturn function( elem ) {\n\t\t\t\treturn elem.getAttribute(\"id\") === attrId;\n\t\t\t};\n\t\t};\n\t\tExpr.find[\"ID\"] = function( id, context ) {\n\t\t\tif ( typeof context.getElementById !== \"undefined\" && documentIsHTML ) {\n\t\t\t\tvar elem = context.getElementById( id );\n\t\t\t\treturn elem ? [ elem ] : [];\n\t\t\t}\n\t\t};\n\t} else {\n\t\tExpr.filter[\"ID\"] =  function( id ) {\n\t\t\tvar attrId = id.replace( runescape, funescape );\n\t\t\treturn function( elem ) {\n\t\t\t\tvar node = typeof elem.getAttributeNode !== \"undefined\" &&\n\t\t\t\t\telem.getAttributeNode(\"id\");\n\t\t\t\treturn node && node.value === attrId;\n\t\t\t};\n\t\t};\n\n\t\t// Support: IE 6 - 7 only\n\t\t// getElementById is not reliable as a find shortcut\n\t\tExpr.find[\"ID\"] = function( id, context ) {\n\t\t\tif ( typeof context.getElementById !== \"undefined\" && documentIsHTML ) {\n\t\t\t\tvar node, i, elems,\n\t\t\t\t\telem = context.getElementById( id );\n\n\t\t\t\tif ( elem ) {\n\n\t\t\t\t\t// Verify the id attribute\n\t\t\t\t\tnode = elem.getAttributeNode(\"id\");\n\t\t\t\t\tif ( node && node.value === id ) {\n\t\t\t\t\t\treturn [ elem ];\n\t\t\t\t\t}\n\n\t\t\t\t\t// Fall back on getElementsByName\n\t\t\t\t\telems = context.getElementsByName( id );\n\t\t\t\t\ti = 0;\n\t\t\t\t\twhile ( (elem = elems[i++]) ) {\n\t\t\t\t\t\tnode = elem.getAttributeNode(\"id\");\n\t\t\t\t\t\tif ( node && node.value === id ) {\n\t\t\t\t\t\t\treturn [ elem ];\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\treturn [];\n\t\t\t}\n\t\t};\n\t}\n\n\t// Tag\n\tExpr.find[\"TAG\"] = support.getElementsByTagName ?\n\t\tfunction( tag, context ) {\n\t\t\tif ( typeof context.getElementsByTagName !== \"undefined\" ) {\n\t\t\t\treturn context.getElementsByTagName( tag );\n\n\t\t\t// DocumentFragment nodes don't have gEBTN\n\t\t\t} else if ( support.qsa ) {\n\t\t\t\treturn context.querySelectorAll( tag );\n\t\t\t}\n\t\t} :\n\n\t\tfunction( tag, context ) {\n\t\t\tvar elem,\n\t\t\t\ttmp = [],\n\t\t\t\ti = 0,\n\t\t\t\t// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too\n\t\t\t\tresults = context.getElementsByTagName( tag );\n\n\t\t\t// Filter out possible comments\n\t\t\tif ( tag === \"*\" ) {\n\t\t\t\twhile ( (elem = results[i++]) ) {\n\t\t\t\t\tif ( elem.nodeType === 1 ) {\n\t\t\t\t\t\ttmp.push( elem );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\treturn tmp;\n\t\t\t}\n\t\t\treturn results;\n\t\t};\n\n\t// Class\n\tExpr.find[\"CLASS\"] = support.getElementsByClassName && function( className, context ) {\n\t\tif ( typeof context.getElementsByClassName !== \"undefined\" && documentIsHTML ) {\n\t\t\treturn context.getElementsByClassName( className );\n\t\t}\n\t};\n\n\t/* QSA/matchesSelector\n\t---------------------------------------------------------------------- */\n\n\t// QSA and matchesSelector support\n\n\t// matchesSelector(:active) reports false when true (IE9/Opera 11.5)\n\trbuggyMatches = [];\n\n\t// qSa(:focus) reports false when true (Chrome 21)\n\t// We allow this because of a bug in IE8/9 that throws an error\n\t// whenever `document.activeElement` is accessed on an iframe\n\t// So, we allow :focus to pass through QSA all the time to avoid the IE error\n\t// See https://bugs.jquery.com/ticket/13378\n\trbuggyQSA = [];\n\n\tif ( (support.qsa = rnative.test( document.querySelectorAll )) ) {\n\t\t// Build QSA regex\n\t\t// Regex strategy adopted from Diego Perini\n\t\tassert(function( el ) {\n\t\t\t// Select is set to empty string on purpose\n\t\t\t// This is to test IE's treatment of not explicitly\n\t\t\t// setting a boolean content attribute,\n\t\t\t// since its presence should be enough\n\t\t\t// https://bugs.jquery.com/ticket/12359\n\t\t\tdocElem.appendChild( el ).innerHTML = \"<a id='\" + expando + \"'></a>\" +\n\t\t\t\t\"<select id='\" + expando + \"-\\r\\\\' msallowcapture=''>\" +\n\t\t\t\t\"<option selected=''></option></select>\";\n\n\t\t\t// Support: IE8, Opera 11-12.16\n\t\t\t// Nothing should be selected when empty strings follow ^= or $= or *=\n\t\t\t// The test attribute must be unknown in Opera but \"safe\" for WinRT\n\t\t\t// https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section\n\t\t\tif ( el.querySelectorAll(\"[msallowcapture^='']\").length ) {\n\t\t\t\trbuggyQSA.push( \"[*^$]=\" + whitespace + \"*(?:''|\\\"\\\")\" );\n\t\t\t}\n\n\t\t\t// Support: IE8\n\t\t\t// Boolean attributes and \"value\" are not treated correctly\n\t\t\tif ( !el.querySelectorAll(\"[selected]\").length ) {\n\t\t\t\trbuggyQSA.push( \"\\\\[\" + whitespace + \"*(?:value|\" + booleans + \")\" );\n\t\t\t}\n\n\t\t\t// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+\n\t\t\tif ( !el.querySelectorAll( \"[id~=\" + expando + \"-]\" ).length ) {\n\t\t\t\trbuggyQSA.push(\"~=\");\n\t\t\t}\n\n\t\t\t// Webkit/Opera - :checked should return selected option elements\n\t\t\t// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked\n\t\t\t// IE8 throws error here and will not see later tests\n\t\t\tif ( !el.querySelectorAll(\":checked\").length ) {\n\t\t\t\trbuggyQSA.push(\":checked\");\n\t\t\t}\n\n\t\t\t// Support: Safari 8+, iOS 8+\n\t\t\t// https://bugs.webkit.org/show_bug.cgi?id=136851\n\t\t\t// In-page `selector#id sibling-combinator selector` fails\n\t\t\tif ( !el.querySelectorAll( \"a#\" + expando + \"+*\" ).length ) {\n\t\t\t\trbuggyQSA.push(\".#.+[+~]\");\n\t\t\t}\n\t\t});\n\n\t\tassert(function( el ) {\n\t\t\tel.innerHTML = \"<a href='' disabled='disabled'></a>\" +\n\t\t\t\t\"<select disabled='disabled'><option/></select>\";\n\n\t\t\t// Support: Windows 8 Native Apps\n\t\t\t// The type and name attributes are restricted during .innerHTML assignment\n\t\t\tvar input = document.createElement(\"input\");\n\t\t\tinput.setAttribute( \"type\", \"hidden\" );\n\t\t\tel.appendChild( input ).setAttribute( \"name\", \"D\" );\n\n\t\t\t// Support: IE8\n\t\t\t// Enforce case-sensitivity of name attribute\n\t\t\tif ( el.querySelectorAll(\"[name=d]\").length ) {\n\t\t\t\trbuggyQSA.push( \"name\" + whitespace + \"*[*^$|!~]?=\" );\n\t\t\t}\n\n\t\t\t// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)\n\t\t\t// IE8 throws error here and will not see later tests\n\t\t\tif ( el.querySelectorAll(\":enabled\").length !== 2 ) {\n\t\t\t\trbuggyQSA.push( \":enabled\", \":disabled\" );\n\t\t\t}\n\n\t\t\t// Support: IE9-11+\n\t\t\t// IE's :disabled selector does not pick up the children of disabled fieldsets\n\t\t\tdocElem.appendChild( el ).disabled = true;\n\t\t\tif ( el.querySelectorAll(\":disabled\").length !== 2 ) {\n\t\t\t\trbuggyQSA.push( \":enabled\", \":disabled\" );\n\t\t\t}\n\n\t\t\t// Opera 10-11 does not throw on post-comma invalid pseudos\n\t\t\tel.querySelectorAll(\"*,:x\");\n\t\t\trbuggyQSA.push(\",.*:\");\n\t\t});\n\t}\n\n\tif ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||\n\t\tdocElem.webkitMatchesSelector ||\n\t\tdocElem.mozMatchesSelector ||\n\t\tdocElem.oMatchesSelector ||\n\t\tdocElem.msMatchesSelector) )) ) {\n\n\t\tassert(function( el ) {\n\t\t\t// Check to see if it's possible to do matchesSelector\n\t\t\t// on a disconnected node (IE 9)\n\t\t\tsupport.disconnectedMatch = matches.call( el, \"*\" );\n\n\t\t\t// This should fail with an exception\n\t\t\t// Gecko does not error, returns false instead\n\t\t\tmatches.call( el, \"[s!='']:x\" );\n\t\t\trbuggyMatches.push( \"!=\", pseudos );\n\t\t});\n\t}\n\n\trbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join(\"|\") );\n\trbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join(\"|\") );\n\n\t/* Contains\n\t---------------------------------------------------------------------- */\n\thasCompare = rnative.test( docElem.compareDocumentPosition );\n\n\t// Element contains another\n\t// Purposefully self-exclusive\n\t// As in, an element does not contain itself\n\tcontains = hasCompare || rnative.test( docElem.contains ) ?\n\t\tfunction( a, b ) {\n\t\t\tvar adown = a.nodeType === 9 ? a.documentElement : a,\n\t\t\t\tbup = b && b.parentNode;\n\t\t\treturn a === bup || !!( bup && bup.nodeType === 1 && (\n\t\t\t\tadown.contains ?\n\t\t\t\t\tadown.contains( bup ) :\n\t\t\t\t\ta.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16\n\t\t\t));\n\t\t} :\n\t\tfunction( a, b ) {\n\t\t\tif ( b ) {\n\t\t\t\twhile ( (b = b.parentNode) ) {\n\t\t\t\t\tif ( b === a ) {\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn false;\n\t\t};\n\n\t/* Sorting\n\t---------------------------------------------------------------------- */\n\n\t// Document order sorting\n\tsortOrder = hasCompare ?\n\tfunction( a, b ) {\n\n\t\t// Flag for duplicate removal\n\t\tif ( a === b ) {\n\t\t\thasDuplicate = true;\n\t\t\treturn 0;\n\t\t}\n\n\t\t// Sort on method existence if only one input has compareDocumentPosition\n\t\tvar compare = !a.compareDocumentPosition - !b.compareDocumentPosition;\n\t\tif ( compare ) {\n\t\t\treturn compare;\n\t\t}\n\n\t\t// Calculate position if both inputs belong to the same document\n\t\tcompare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?\n\t\t\ta.compareDocumentPosition( b ) :\n\n\t\t\t// Otherwise we know they are disconnected\n\t\t\t1;\n\n\t\t// Disconnected nodes\n\t\tif ( compare & 1 ||\n\t\t\t(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {\n\n\t\t\t// Choose the first element that is related to our preferred document\n\t\t\tif ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {\n\t\t\t\treturn -1;\n\t\t\t}\n\t\t\tif ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {\n\t\t\t\treturn 1;\n\t\t\t}\n\n\t\t\t// Maintain original order\n\t\t\treturn sortInput ?\n\t\t\t\t( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :\n\t\t\t\t0;\n\t\t}\n\n\t\treturn compare & 4 ? -1 : 1;\n\t} :\n\tfunction( a, b ) {\n\t\t// Exit early if the nodes are identical\n\t\tif ( a === b ) {\n\t\t\thasDuplicate = true;\n\t\t\treturn 0;\n\t\t}\n\n\t\tvar cur,\n\t\t\ti = 0,\n\t\t\taup = a.parentNode,\n\t\t\tbup = b.parentNode,\n\t\t\tap = [ a ],\n\t\t\tbp = [ b ];\n\n\t\t// Parentless nodes are either documents or disconnected\n\t\tif ( !aup || !bup ) {\n\t\t\treturn a === document ? -1 :\n\t\t\t\tb === document ? 1 :\n\t\t\t\taup ? -1 :\n\t\t\t\tbup ? 1 :\n\t\t\t\tsortInput ?\n\t\t\t\t( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :\n\t\t\t\t0;\n\n\t\t// If the nodes are siblings, we can do a quick check\n\t\t} else if ( aup === bup ) {\n\t\t\treturn siblingCheck( a, b );\n\t\t}\n\n\t\t// Otherwise we need full lists of their ancestors for comparison\n\t\tcur = a;\n\t\twhile ( (cur = cur.parentNode) ) {\n\t\t\tap.unshift( cur );\n\t\t}\n\t\tcur = b;\n\t\twhile ( (cur = cur.parentNode) ) {\n\t\t\tbp.unshift( cur );\n\t\t}\n\n\t\t// Walk down the tree looking for a discrepancy\n\t\twhile ( ap[i] === bp[i] ) {\n\t\t\ti++;\n\t\t}\n\n\t\treturn i ?\n\t\t\t// Do a sibling check if the nodes have a common ancestor\n\t\t\tsiblingCheck( ap[i], bp[i] ) :\n\n\t\t\t// Otherwise nodes in our document sort first\n\t\t\tap[i] === preferredDoc ? -1 :\n\t\t\tbp[i] === preferredDoc ? 1 :\n\t\t\t0;\n\t};\n\n\treturn document;\n};\n\nSizzle.matches = function( expr, elements ) {\n\treturn Sizzle( expr, null, null, elements );\n};\n\nSizzle.matchesSelector = function( elem, expr ) {\n\t// Set document vars if needed\n\tif ( ( elem.ownerDocument || elem ) !== document ) {\n\t\tsetDocument( elem );\n\t}\n\n\t// Make sure that attribute selectors are quoted\n\texpr = expr.replace( rattributeQuotes, \"='$1']\" );\n\n\tif ( support.matchesSelector && documentIsHTML &&\n\t\t!compilerCache[ expr + \" \" ] &&\n\t\t( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&\n\t\t( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {\n\n\t\ttry {\n\t\t\tvar ret = matches.call( elem, expr );\n\n\t\t\t// IE 9's matchesSelector returns false on disconnected nodes\n\t\t\tif ( ret || support.disconnectedMatch ||\n\t\t\t\t\t// As well, disconnected nodes are said to be in a document\n\t\t\t\t\t// fragment in IE 9\n\t\t\t\t\telem.document && elem.document.nodeType !== 11 ) {\n\t\t\t\treturn ret;\n\t\t\t}\n\t\t} catch (e) {}\n\t}\n\n\treturn Sizzle( expr, document, null, [ elem ] ).length > 0;\n};\n\nSizzle.contains = function( context, elem ) {\n\t// Set document vars if needed\n\tif ( ( context.ownerDocument || context ) !== document ) {\n\t\tsetDocument( context );\n\t}\n\treturn contains( context, elem );\n};\n\nSizzle.attr = function( elem, name ) {\n\t// Set document vars if needed\n\tif ( ( elem.ownerDocument || elem ) !== document ) {\n\t\tsetDocument( elem );\n\t}\n\n\tvar fn = Expr.attrHandle[ name.toLowerCase() ],\n\t\t// Don't get fooled by Object.prototype properties (jQuery #13807)\n\t\tval = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?\n\t\t\tfn( elem, name, !documentIsHTML ) :\n\t\t\tundefined;\n\n\treturn val !== undefined ?\n\t\tval :\n\t\tsupport.attributes || !documentIsHTML ?\n\t\t\telem.getAttribute( name ) :\n\t\t\t(val = elem.getAttributeNode(name)) && val.specified ?\n\t\t\t\tval.value :\n\t\t\t\tnull;\n};\n\nSizzle.escape = function( sel ) {\n\treturn (sel + \"\").replace( rcssescape, fcssescape );\n};\n\nSizzle.error = function( msg ) {\n\tthrow new Error( \"Syntax error, unrecognized expression: \" + msg );\n};\n\n/**\n * Document sorting and removing duplicates\n * @param {ArrayLike} results\n */\nSizzle.uniqueSort = function( results ) {\n\tvar elem,\n\t\tduplicates = [],\n\t\tj = 0,\n\t\ti = 0;\n\n\t// Unless we *know* we can detect duplicates, assume their presence\n\thasDuplicate = !support.detectDuplicates;\n\tsortInput = !support.sortStable && results.slice( 0 );\n\tresults.sort( sortOrder );\n\n\tif ( hasDuplicate ) {\n\t\twhile ( (elem = results[i++]) ) {\n\t\t\tif ( elem === results[ i ] ) {\n\t\t\t\tj = duplicates.push( i );\n\t\t\t}\n\t\t}\n\t\twhile ( j-- ) {\n\t\t\tresults.splice( duplicates[ j ], 1 );\n\t\t}\n\t}\n\n\t// Clear input after sorting to release objects\n\t// See https://github.com/jquery/sizzle/pull/225\n\tsortInput = null;\n\n\treturn results;\n};\n\n/**\n * Utility function for retrieving the text value of an array of DOM nodes\n * @param {Array|Element} elem\n */\ngetText = Sizzle.getText = function( elem ) {\n\tvar node,\n\t\tret = \"\",\n\t\ti = 0,\n\t\tnodeType = elem.nodeType;\n\n\tif ( !nodeType ) {\n\t\t// If no nodeType, this is expected to be an array\n\t\twhile ( (node = elem[i++]) ) {\n\t\t\t// Do not traverse comment nodes\n\t\t\tret += getText( node );\n\t\t}\n\t} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {\n\t\t// Use textContent for elements\n\t\t// innerText usage removed for consistency of new lines (jQuery #11153)\n\t\tif ( typeof elem.textContent === \"string\" ) {\n\t\t\treturn elem.textContent;\n\t\t} else {\n\t\t\t// Traverse its children\n\t\t\tfor ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {\n\t\t\t\tret += getText( elem );\n\t\t\t}\n\t\t}\n\t} else if ( nodeType === 3 || nodeType === 4 ) {\n\t\treturn elem.nodeValue;\n\t}\n\t// Do not include comment or processing instruction nodes\n\n\treturn ret;\n};\n\nExpr = Sizzle.selectors = {\n\n\t// Can be adjusted by the user\n\tcacheLength: 50,\n\n\tcreatePseudo: markFunction,\n\n\tmatch: matchExpr,\n\n\tattrHandle: {},\n\n\tfind: {},\n\n\trelative: {\n\t\t\">\": { dir: \"parentNode\", first: true },\n\t\t\" \": { dir: \"parentNode\" },\n\t\t\"+\": { dir: \"previousSibling\", first: true },\n\t\t\"~\": { dir: \"previousSibling\" }\n\t},\n\n\tpreFilter: {\n\t\t\"ATTR\": function( match ) {\n\t\t\tmatch[1] = match[1].replace( runescape, funescape );\n\n\t\t\t// Move the given value to match[3] whether quoted or unquoted\n\t\t\tmatch[3] = ( match[3] || match[4] || match[5] || \"\" ).replace( runescape, funescape );\n\n\t\t\tif ( match[2] === \"~=\" ) {\n\t\t\t\tmatch[3] = \" \" + match[3] + \" \";\n\t\t\t}\n\n\t\t\treturn match.slice( 0, 4 );\n\t\t},\n\n\t\t\"CHILD\": function( match ) {\n\t\t\t/* matches from matchExpr[\"CHILD\"]\n\t\t\t\t1 type (only|nth|...)\n\t\t\t\t2 what (child|of-type)\n\t\t\t\t3 argument (even|odd|\\d*|\\d*n([+-]\\d+)?|...)\n\t\t\t\t4 xn-component of xn+y argument ([+-]?\\d*n|)\n\t\t\t\t5 sign of xn-component\n\t\t\t\t6 x of xn-component\n\t\t\t\t7 sign of y-component\n\t\t\t\t8 y of y-component\n\t\t\t*/\n\t\t\tmatch[1] = match[1].toLowerCase();\n\n\t\t\tif ( match[1].slice( 0, 3 ) === \"nth\" ) {\n\t\t\t\t// nth-* requires argument\n\t\t\t\tif ( !match[3] ) {\n\t\t\t\t\tSizzle.error( match[0] );\n\t\t\t\t}\n\n\t\t\t\t// numeric x and y parameters for Expr.filter.CHILD\n\t\t\t\t// remember that false/true cast respectively to 0/1\n\t\t\t\tmatch[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === \"even\" || match[3] === \"odd\" ) );\n\t\t\t\tmatch[5] = +( ( match[7] + match[8] ) || match[3] === \"odd\" );\n\n\t\t\t// other types prohibit arguments\n\t\t\t} else if ( match[3] ) {\n\t\t\t\tSizzle.error( match[0] );\n\t\t\t}\n\n\t\t\treturn match;\n\t\t},\n\n\t\t\"PSEUDO\": function( match ) {\n\t\t\tvar excess,\n\t\t\t\tunquoted = !match[6] && match[2];\n\n\t\t\tif ( matchExpr[\"CHILD\"].test( match[0] ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\t// Accept quoted arguments as-is\n\t\t\tif ( match[3] ) {\n\t\t\t\tmatch[2] = match[4] || match[5] || \"\";\n\n\t\t\t// Strip excess characters from unquoted arguments\n\t\t\t} else if ( unquoted && rpseudo.test( unquoted ) &&\n\t\t\t\t// Get excess from tokenize (recursively)\n\t\t\t\t(excess = tokenize( unquoted, true )) &&\n\t\t\t\t// advance to the next closing parenthesis\n\t\t\t\t(excess = unquoted.indexOf( \")\", unquoted.length - excess ) - unquoted.length) ) {\n\n\t\t\t\t// excess is a negative index\n\t\t\t\tmatch[0] = match[0].slice( 0, excess );\n\t\t\t\tmatch[2] = unquoted.slice( 0, excess );\n\t\t\t}\n\n\t\t\t// Return only captures needed by the pseudo filter method (type and argument)\n\t\t\treturn match.slice( 0, 3 );\n\t\t}\n\t},\n\n\tfilter: {\n\n\t\t\"TAG\": function( nodeNameSelector ) {\n\t\t\tvar nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();\n\t\t\treturn nodeNameSelector === \"*\" ?\n\t\t\t\tfunction() { return true; } :\n\t\t\t\tfunction( elem ) {\n\t\t\t\t\treturn elem.nodeName && elem.nodeName.toLowerCase() === nodeName;\n\t\t\t\t};\n\t\t},\n\n\t\t\"CLASS\": function( className ) {\n\t\t\tvar pattern = classCache[ className + \" \" ];\n\n\t\t\treturn pattern ||\n\t\t\t\t(pattern = new RegExp( \"(^|\" + whitespace + \")\" + className + \"(\" + whitespace + \"|$)\" )) &&\n\t\t\t\tclassCache( className, function( elem ) {\n\t\t\t\t\treturn pattern.test( typeof elem.className === \"string\" && elem.className || typeof elem.getAttribute !== \"undefined\" && elem.getAttribute(\"class\") || \"\" );\n\t\t\t\t});\n\t\t},\n\n\t\t\"ATTR\": function( name, operator, check ) {\n\t\t\treturn function( elem ) {\n\t\t\t\tvar result = Sizzle.attr( elem, name );\n\n\t\t\t\tif ( result == null ) {\n\t\t\t\t\treturn operator === \"!=\";\n\t\t\t\t}\n\t\t\t\tif ( !operator ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\tresult += \"\";\n\n\t\t\t\treturn operator === \"=\" ? result === check :\n\t\t\t\t\toperator === \"!=\" ? result !== check :\n\t\t\t\t\toperator === \"^=\" ? check && result.indexOf( check ) === 0 :\n\t\t\t\t\toperator === \"*=\" ? check && result.indexOf( check ) > -1 :\n\t\t\t\t\toperator === \"$=\" ? check && result.slice( -check.length ) === check :\n\t\t\t\t\toperator === \"~=\" ? ( \" \" + result.replace( rwhitespace, \" \" ) + \" \" ).indexOf( check ) > -1 :\n\t\t\t\t\toperator === \"|=\" ? result === check || result.slice( 0, check.length + 1 ) === check + \"-\" :\n\t\t\t\t\tfalse;\n\t\t\t};\n\t\t},\n\n\t\t\"CHILD\": function( type, what, argument, first, last ) {\n\t\t\tvar simple = type.slice( 0, 3 ) !== \"nth\",\n\t\t\t\tforward = type.slice( -4 ) !== \"last\",\n\t\t\t\tofType = what === \"of-type\";\n\n\t\t\treturn first === 1 && last === 0 ?\n\n\t\t\t\t// Shortcut for :nth-*(n)\n\t\t\t\tfunction( elem ) {\n\t\t\t\t\treturn !!elem.parentNode;\n\t\t\t\t} :\n\n\t\t\t\tfunction( elem, context, xml ) {\n\t\t\t\t\tvar cache, uniqueCache, outerCache, node, nodeIndex, start,\n\t\t\t\t\t\tdir = simple !== forward ? \"nextSibling\" : \"previousSibling\",\n\t\t\t\t\t\tparent = elem.parentNode,\n\t\t\t\t\t\tname = ofType && elem.nodeName.toLowerCase(),\n\t\t\t\t\t\tuseCache = !xml && !ofType,\n\t\t\t\t\t\tdiff = false;\n\n\t\t\t\t\tif ( parent ) {\n\n\t\t\t\t\t\t// :(first|last|only)-(child|of-type)\n\t\t\t\t\t\tif ( simple ) {\n\t\t\t\t\t\t\twhile ( dir ) {\n\t\t\t\t\t\t\t\tnode = elem;\n\t\t\t\t\t\t\t\twhile ( (node = node[ dir ]) ) {\n\t\t\t\t\t\t\t\t\tif ( ofType ?\n\t\t\t\t\t\t\t\t\t\tnode.nodeName.toLowerCase() === name :\n\t\t\t\t\t\t\t\t\t\tnode.nodeType === 1 ) {\n\n\t\t\t\t\t\t\t\t\t\treturn false;\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t// Reverse direction for :only-* (if we haven't yet done so)\n\t\t\t\t\t\t\t\tstart = dir = type === \"only\" && !start && \"nextSibling\";\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\treturn true;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tstart = [ forward ? parent.firstChild : parent.lastChild ];\n\n\t\t\t\t\t\t// non-xml :nth-child(...) stores cache data on `parent`\n\t\t\t\t\t\tif ( forward && useCache ) {\n\n\t\t\t\t\t\t\t// Seek `elem` from a previously-cached index\n\n\t\t\t\t\t\t\t// ...in a gzip-friendly way\n\t\t\t\t\t\t\tnode = parent;\n\t\t\t\t\t\t\touterCache = node[ expando ] || (node[ expando ] = {});\n\n\t\t\t\t\t\t\t// Support: IE <9 only\n\t\t\t\t\t\t\t// Defend against cloned attroperties (jQuery gh-1709)\n\t\t\t\t\t\t\tuniqueCache = outerCache[ node.uniqueID ] ||\n\t\t\t\t\t\t\t\t(outerCache[ node.uniqueID ] = {});\n\n\t\t\t\t\t\t\tcache = uniqueCache[ type ] || [];\n\t\t\t\t\t\t\tnodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];\n\t\t\t\t\t\t\tdiff = nodeIndex && cache[ 2 ];\n\t\t\t\t\t\t\tnode = nodeIndex && parent.childNodes[ nodeIndex ];\n\n\t\t\t\t\t\t\twhile ( (node = ++nodeIndex && node && node[ dir ] ||\n\n\t\t\t\t\t\t\t\t// Fallback to seeking `elem` from the start\n\t\t\t\t\t\t\t\t(diff = nodeIndex = 0) || start.pop()) ) {\n\n\t\t\t\t\t\t\t\t// When found, cache indexes on `parent` and break\n\t\t\t\t\t\t\t\tif ( node.nodeType === 1 && ++diff && node === elem ) {\n\t\t\t\t\t\t\t\t\tuniqueCache[ type ] = [ dirruns, nodeIndex, diff ];\n\t\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t// Use previously-cached element index if available\n\t\t\t\t\t\t\tif ( useCache ) {\n\t\t\t\t\t\t\t\t// ...in a gzip-friendly way\n\t\t\t\t\t\t\t\tnode = elem;\n\t\t\t\t\t\t\t\touterCache = node[ expando ] || (node[ expando ] = {});\n\n\t\t\t\t\t\t\t\t// Support: IE <9 only\n\t\t\t\t\t\t\t\t// Defend against cloned attroperties (jQuery gh-1709)\n\t\t\t\t\t\t\t\tuniqueCache = outerCache[ node.uniqueID ] ||\n\t\t\t\t\t\t\t\t\t(outerCache[ node.uniqueID ] = {});\n\n\t\t\t\t\t\t\t\tcache = uniqueCache[ type ] || [];\n\t\t\t\t\t\t\t\tnodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];\n\t\t\t\t\t\t\t\tdiff = nodeIndex;\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// xml :nth-child(...)\n\t\t\t\t\t\t\t// or :nth-last-child(...) or :nth(-last)?-of-type(...)\n\t\t\t\t\t\t\tif ( diff === false ) {\n\t\t\t\t\t\t\t\t// Use the same loop as above to seek `elem` from the start\n\t\t\t\t\t\t\t\twhile ( (node = ++nodeIndex && node && node[ dir ] ||\n\t\t\t\t\t\t\t\t\t(diff = nodeIndex = 0) || start.pop()) ) {\n\n\t\t\t\t\t\t\t\t\tif ( ( ofType ?\n\t\t\t\t\t\t\t\t\t\tnode.nodeName.toLowerCase() === name :\n\t\t\t\t\t\t\t\t\t\tnode.nodeType === 1 ) &&\n\t\t\t\t\t\t\t\t\t\t++diff ) {\n\n\t\t\t\t\t\t\t\t\t\t// Cache the index of each encountered element\n\t\t\t\t\t\t\t\t\t\tif ( useCache ) {\n\t\t\t\t\t\t\t\t\t\t\touterCache = node[ expando ] || (node[ expando ] = {});\n\n\t\t\t\t\t\t\t\t\t\t\t// Support: IE <9 only\n\t\t\t\t\t\t\t\t\t\t\t// Defend against cloned attroperties (jQuery gh-1709)\n\t\t\t\t\t\t\t\t\t\t\tuniqueCache = outerCache[ node.uniqueID ] ||\n\t\t\t\t\t\t\t\t\t\t\t\t(outerCache[ node.uniqueID ] = {});\n\n\t\t\t\t\t\t\t\t\t\t\tuniqueCache[ type ] = [ dirruns, diff ];\n\t\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\t\tif ( node === elem ) {\n\t\t\t\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Incorporate the offset, then check against cycle size\n\t\t\t\t\t\tdiff -= last;\n\t\t\t\t\t\treturn diff === first || ( diff % first === 0 && diff / first >= 0 );\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t},\n\n\t\t\"PSEUDO\": function( pseudo, argument ) {\n\t\t\t// pseudo-class names are case-insensitive\n\t\t\t// http://www.w3.org/TR/selectors/#pseudo-classes\n\t\t\t// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters\n\t\t\t// Remember that setFilters inherits from pseudos\n\t\t\tvar args,\n\t\t\t\tfn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||\n\t\t\t\t\tSizzle.error( \"unsupported pseudo: \" + pseudo );\n\n\t\t\t// The user may use createPseudo to indicate that\n\t\t\t// arguments are needed to create the filter function\n\t\t\t// just as Sizzle does\n\t\t\tif ( fn[ expando ] ) {\n\t\t\t\treturn fn( argument );\n\t\t\t}\n\n\t\t\t// But maintain support for old signatures\n\t\t\tif ( fn.length > 1 ) {\n\t\t\t\targs = [ pseudo, pseudo, \"\", argument ];\n\t\t\t\treturn Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?\n\t\t\t\t\tmarkFunction(function( seed, matches ) {\n\t\t\t\t\t\tvar idx,\n\t\t\t\t\t\t\tmatched = fn( seed, argument ),\n\t\t\t\t\t\t\ti = matched.length;\n\t\t\t\t\t\twhile ( i-- ) {\n\t\t\t\t\t\t\tidx = indexOf( seed, matched[i] );\n\t\t\t\t\t\t\tseed[ idx ] = !( matches[ idx ] = matched[i] );\n\t\t\t\t\t\t}\n\t\t\t\t\t}) :\n\t\t\t\t\tfunction( elem ) {\n\t\t\t\t\t\treturn fn( elem, 0, args );\n\t\t\t\t\t};\n\t\t\t}\n\n\t\t\treturn fn;\n\t\t}\n\t},\n\n\tpseudos: {\n\t\t// Potentially complex pseudos\n\t\t\"not\": markFunction(function( selector ) {\n\t\t\t// Trim the selector passed to compile\n\t\t\t// to avoid treating leading and trailing\n\t\t\t// spaces as combinators\n\t\t\tvar input = [],\n\t\t\t\tresults = [],\n\t\t\t\tmatcher = compile( selector.replace( rtrim, \"$1\" ) );\n\n\t\t\treturn matcher[ expando ] ?\n\t\t\t\tmarkFunction(function( seed, matches, context, xml ) {\n\t\t\t\t\tvar elem,\n\t\t\t\t\t\tunmatched = matcher( seed, null, xml, [] ),\n\t\t\t\t\t\ti = seed.length;\n\n\t\t\t\t\t// Match elements unmatched by `matcher`\n\t\t\t\t\twhile ( i-- ) {\n\t\t\t\t\t\tif ( (elem = unmatched[i]) ) {\n\t\t\t\t\t\t\tseed[i] = !(matches[i] = elem);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}) :\n\t\t\t\tfunction( elem, context, xml ) {\n\t\t\t\t\tinput[0] = elem;\n\t\t\t\t\tmatcher( input, null, xml, results );\n\t\t\t\t\t// Don't keep the element (issue #299)\n\t\t\t\t\tinput[0] = null;\n\t\t\t\t\treturn !results.pop();\n\t\t\t\t};\n\t\t}),\n\n\t\t\"has\": markFunction(function( selector ) {\n\t\t\treturn function( elem ) {\n\t\t\t\treturn Sizzle( selector, elem ).length > 0;\n\t\t\t};\n\t\t}),\n\n\t\t\"contains\": markFunction(function( text ) {\n\t\t\ttext = text.replace( runescape, funescape );\n\t\t\treturn function( elem ) {\n\t\t\t\treturn ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;\n\t\t\t};\n\t\t}),\n\n\t\t// \"Whether an element is represented by a :lang() selector\n\t\t// is based solely on the element's language value\n\t\t// being equal to the identifier C,\n\t\t// or beginning with the identifier C immediately followed by \"-\".\n\t\t// The matching of C against the element's language value is performed case-insensitively.\n\t\t// The identifier C does not have to be a valid language name.\"\n\t\t// http://www.w3.org/TR/selectors/#lang-pseudo\n\t\t\"lang\": markFunction( function( lang ) {\n\t\t\t// lang value must be a valid identifier\n\t\t\tif ( !ridentifier.test(lang || \"\") ) {\n\t\t\t\tSizzle.error( \"unsupported lang: \" + lang );\n\t\t\t}\n\t\t\tlang = lang.replace( runescape, funescape ).toLowerCase();\n\t\t\treturn function( elem ) {\n\t\t\t\tvar elemLang;\n\t\t\t\tdo {\n\t\t\t\t\tif ( (elemLang = documentIsHTML ?\n\t\t\t\t\t\telem.lang :\n\t\t\t\t\t\telem.getAttribute(\"xml:lang\") || elem.getAttribute(\"lang\")) ) {\n\n\t\t\t\t\t\telemLang = elemLang.toLowerCase();\n\t\t\t\t\t\treturn elemLang === lang || elemLang.indexOf( lang + \"-\" ) === 0;\n\t\t\t\t\t}\n\t\t\t\t} while ( (elem = elem.parentNode) && elem.nodeType === 1 );\n\t\t\t\treturn false;\n\t\t\t};\n\t\t}),\n\n\t\t// Miscellaneous\n\t\t\"target\": function( elem ) {\n\t\t\tvar hash = window.location && window.location.hash;\n\t\t\treturn hash && hash.slice( 1 ) === elem.id;\n\t\t},\n\n\t\t\"root\": function( elem ) {\n\t\t\treturn elem === docElem;\n\t\t},\n\n\t\t\"focus\": function( elem ) {\n\t\t\treturn elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);\n\t\t},\n\n\t\t// Boolean properties\n\t\t\"enabled\": createDisabledPseudo( false ),\n\t\t\"disabled\": createDisabledPseudo( true ),\n\n\t\t\"checked\": function( elem ) {\n\t\t\t// In CSS3, :checked should return both checked and selected elements\n\t\t\t// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked\n\t\t\tvar nodeName = elem.nodeName.toLowerCase();\n\t\t\treturn (nodeName === \"input\" && !!elem.checked) || (nodeName === \"option\" && !!elem.selected);\n\t\t},\n\n\t\t\"selected\": function( elem ) {\n\t\t\t// Accessing this property makes selected-by-default\n\t\t\t// options in Safari work properly\n\t\t\tif ( elem.parentNode ) {\n\t\t\t\telem.parentNode.selectedIndex;\n\t\t\t}\n\n\t\t\treturn elem.selected === true;\n\t\t},\n\n\t\t// Contents\n\t\t\"empty\": function( elem ) {\n\t\t\t// http://www.w3.org/TR/selectors/#empty-pseudo\n\t\t\t// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),\n\t\t\t//   but not by others (comment: 8; processing instruction: 7; etc.)\n\t\t\t// nodeType < 6 works because attributes (2) do not appear as children\n\t\t\tfor ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {\n\t\t\t\tif ( elem.nodeType < 6 ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn true;\n\t\t},\n\n\t\t\"parent\": function( elem ) {\n\t\t\treturn !Expr.pseudos[\"empty\"]( elem );\n\t\t},\n\n\t\t// Element/input types\n\t\t\"header\": function( elem ) {\n\t\t\treturn rheader.test( elem.nodeName );\n\t\t},\n\n\t\t\"input\": function( elem ) {\n\t\t\treturn rinputs.test( elem.nodeName );\n\t\t},\n\n\t\t\"button\": function( elem ) {\n\t\t\tvar name = elem.nodeName.toLowerCase();\n\t\t\treturn name === \"input\" && elem.type === \"button\" || name === \"button\";\n\t\t},\n\n\t\t\"text\": function( elem ) {\n\t\t\tvar attr;\n\t\t\treturn elem.nodeName.toLowerCase() === \"input\" &&\n\t\t\t\telem.type === \"text\" &&\n\n\t\t\t\t// Support: IE<8\n\t\t\t\t// New HTML5 attribute values (e.g., \"search\") appear with elem.type === \"text\"\n\t\t\t\t( (attr = elem.getAttribute(\"type\")) == null || attr.toLowerCase() === \"text\" );\n\t\t},\n\n\t\t// Position-in-collection\n\t\t\"first\": createPositionalPseudo(function() {\n\t\t\treturn [ 0 ];\n\t\t}),\n\n\t\t\"last\": createPositionalPseudo(function( matchIndexes, length ) {\n\t\t\treturn [ length - 1 ];\n\t\t}),\n\n\t\t\"eq\": createPositionalPseudo(function( matchIndexes, length, argument ) {\n\t\t\treturn [ argument < 0 ? argument + length : argument ];\n\t\t}),\n\n\t\t\"even\": createPositionalPseudo(function( matchIndexes, length ) {\n\t\t\tvar i = 0;\n\t\t\tfor ( ; i < length; i += 2 ) {\n\t\t\t\tmatchIndexes.push( i );\n\t\t\t}\n\t\t\treturn matchIndexes;\n\t\t}),\n\n\t\t\"odd\": createPositionalPseudo(function( matchIndexes, length ) {\n\t\t\tvar i = 1;\n\t\t\tfor ( ; i < length; i += 2 ) {\n\t\t\t\tmatchIndexes.push( i );\n\t\t\t}\n\t\t\treturn matchIndexes;\n\t\t}),\n\n\t\t\"lt\": createPositionalPseudo(function( matchIndexes, length, argument ) {\n\t\t\tvar i = argument < 0 ? argument + length : argument;\n\t\t\tfor ( ; --i >= 0; ) {\n\t\t\t\tmatchIndexes.push( i );\n\t\t\t}\n\t\t\treturn matchIndexes;\n\t\t}),\n\n\t\t\"gt\": createPositionalPseudo(function( matchIndexes, length, argument ) {\n\t\t\tvar i = argument < 0 ? argument + length : argument;\n\t\t\tfor ( ; ++i < length; ) {\n\t\t\t\tmatchIndexes.push( i );\n\t\t\t}\n\t\t\treturn matchIndexes;\n\t\t})\n\t}\n};\n\nExpr.pseudos[\"nth\"] = Expr.pseudos[\"eq\"];\n\n// Add button/input type pseudos\nfor ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {\n\tExpr.pseudos[ i ] = createInputPseudo( i );\n}\nfor ( i in { submit: true, reset: true } ) {\n\tExpr.pseudos[ i ] = createButtonPseudo( i );\n}\n\n// Easy API for creating new setFilters\nfunction setFilters() {}\nsetFilters.prototype = Expr.filters = Expr.pseudos;\nExpr.setFilters = new setFilters();\n\ntokenize = Sizzle.tokenize = function( selector, parseOnly ) {\n\tvar matched, match, tokens, type,\n\t\tsoFar, groups, preFilters,\n\t\tcached = tokenCache[ selector + \" \" ];\n\n\tif ( cached ) {\n\t\treturn parseOnly ? 0 : cached.slice( 0 );\n\t}\n\n\tsoFar = selector;\n\tgroups = [];\n\tpreFilters = Expr.preFilter;\n\n\twhile ( soFar ) {\n\n\t\t// Comma and first run\n\t\tif ( !matched || (match = rcomma.exec( soFar )) ) {\n\t\t\tif ( match ) {\n\t\t\t\t// Don't consume trailing commas as valid\n\t\t\t\tsoFar = soFar.slice( match[0].length ) || soFar;\n\t\t\t}\n\t\t\tgroups.push( (tokens = []) );\n\t\t}\n\n\t\tmatched = false;\n\n\t\t// Combinators\n\t\tif ( (match = rcombinators.exec( soFar )) ) {\n\t\t\tmatched = match.shift();\n\t\t\ttokens.push({\n\t\t\t\tvalue: matched,\n\t\t\t\t// Cast descendant combinators to space\n\t\t\t\ttype: match[0].replace( rtrim, \" \" )\n\t\t\t});\n\t\t\tsoFar = soFar.slice( matched.length );\n\t\t}\n\n\t\t// Filters\n\t\tfor ( type in Expr.filter ) {\n\t\t\tif ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||\n\t\t\t\t(match = preFilters[ type ]( match ))) ) {\n\t\t\t\tmatched = match.shift();\n\t\t\t\ttokens.push({\n\t\t\t\t\tvalue: matched,\n\t\t\t\t\ttype: type,\n\t\t\t\t\tmatches: match\n\t\t\t\t});\n\t\t\t\tsoFar = soFar.slice( matched.length );\n\t\t\t}\n\t\t}\n\n\t\tif ( !matched ) {\n\t\t\tbreak;\n\t\t}\n\t}\n\n\t// Return the length of the invalid excess\n\t// if we're just parsing\n\t// Otherwise, throw an error or return tokens\n\treturn parseOnly ?\n\t\tsoFar.length :\n\t\tsoFar ?\n\t\t\tSizzle.error( selector ) :\n\t\t\t// Cache the tokens\n\t\t\ttokenCache( selector, groups ).slice( 0 );\n};\n\nfunction toSelector( tokens ) {\n\tvar i = 0,\n\t\tlen = tokens.length,\n\t\tselector = \"\";\n\tfor ( ; i < len; i++ ) {\n\t\tselector += tokens[i].value;\n\t}\n\treturn selector;\n}\n\nfunction addCombinator( matcher, combinator, base ) {\n\tvar dir = combinator.dir,\n\t\tskip = combinator.next,\n\t\tkey = skip || dir,\n\t\tcheckNonElements = base && key === \"parentNode\",\n\t\tdoneName = done++;\n\n\treturn combinator.first ?\n\t\t// Check against closest ancestor/preceding element\n\t\tfunction( elem, context, xml ) {\n\t\t\twhile ( (elem = elem[ dir ]) ) {\n\t\t\t\tif ( elem.nodeType === 1 || checkNonElements ) {\n\t\t\t\t\treturn matcher( elem, context, xml );\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn false;\n\t\t} :\n\n\t\t// Check against all ancestor/preceding elements\n\t\tfunction( elem, context, xml ) {\n\t\t\tvar oldCache, uniqueCache, outerCache,\n\t\t\t\tnewCache = [ dirruns, doneName ];\n\n\t\t\t// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching\n\t\t\tif ( xml ) {\n\t\t\t\twhile ( (elem = elem[ dir ]) ) {\n\t\t\t\t\tif ( elem.nodeType === 1 || checkNonElements ) {\n\t\t\t\t\t\tif ( matcher( elem, context, xml ) ) {\n\t\t\t\t\t\t\treturn true;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\twhile ( (elem = elem[ dir ]) ) {\n\t\t\t\t\tif ( elem.nodeType === 1 || checkNonElements ) {\n\t\t\t\t\t\touterCache = elem[ expando ] || (elem[ expando ] = {});\n\n\t\t\t\t\t\t// Support: IE <9 only\n\t\t\t\t\t\t// Defend against cloned attroperties (jQuery gh-1709)\n\t\t\t\t\t\tuniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});\n\n\t\t\t\t\t\tif ( skip && skip === elem.nodeName.toLowerCase() ) {\n\t\t\t\t\t\t\telem = elem[ dir ] || elem;\n\t\t\t\t\t\t} else if ( (oldCache = uniqueCache[ key ]) &&\n\t\t\t\t\t\t\toldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {\n\n\t\t\t\t\t\t\t// Assign to newCache so results back-propagate to previous elements\n\t\t\t\t\t\t\treturn (newCache[ 2 ] = oldCache[ 2 ]);\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t// Reuse newcache so results back-propagate to previous elements\n\t\t\t\t\t\t\tuniqueCache[ key ] = newCache;\n\n\t\t\t\t\t\t\t// A match means we're done; a fail means we have to keep checking\n\t\t\t\t\t\t\tif ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {\n\t\t\t\t\t\t\t\treturn true;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn false;\n\t\t};\n}\n\nfunction elementMatcher( matchers ) {\n\treturn matchers.length > 1 ?\n\t\tfunction( elem, context, xml ) {\n\t\t\tvar i = matchers.length;\n\t\t\twhile ( i-- ) {\n\t\t\t\tif ( !matchers[i]( elem, context, xml ) ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn true;\n\t\t} :\n\t\tmatchers[0];\n}\n\nfunction multipleContexts( selector, contexts, results ) {\n\tvar i = 0,\n\t\tlen = contexts.length;\n\tfor ( ; i < len; i++ ) {\n\t\tSizzle( selector, contexts[i], results );\n\t}\n\treturn results;\n}\n\nfunction condense( unmatched, map, filter, context, xml ) {\n\tvar elem,\n\t\tnewUnmatched = [],\n\t\ti = 0,\n\t\tlen = unmatched.length,\n\t\tmapped = map != null;\n\n\tfor ( ; i < len; i++ ) {\n\t\tif ( (elem = unmatched[i]) ) {\n\t\t\tif ( !filter || filter( elem, context, xml ) ) {\n\t\t\t\tnewUnmatched.push( elem );\n\t\t\t\tif ( mapped ) {\n\t\t\t\t\tmap.push( i );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn newUnmatched;\n}\n\nfunction setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {\n\tif ( postFilter && !postFilter[ expando ] ) {\n\t\tpostFilter = setMatcher( postFilter );\n\t}\n\tif ( postFinder && !postFinder[ expando ] ) {\n\t\tpostFinder = setMatcher( postFinder, postSelector );\n\t}\n\treturn markFunction(function( seed, results, context, xml ) {\n\t\tvar temp, i, elem,\n\t\t\tpreMap = [],\n\t\t\tpostMap = [],\n\t\t\tpreexisting = results.length,\n\n\t\t\t// Get initial elements from seed or context\n\t\t\telems = seed || multipleContexts( selector || \"*\", context.nodeType ? [ context ] : context, [] ),\n\n\t\t\t// Prefilter to get matcher input, preserving a map for seed-results synchronization\n\t\t\tmatcherIn = preFilter && ( seed || !selector ) ?\n\t\t\t\tcondense( elems, preMap, preFilter, context, xml ) :\n\t\t\t\telems,\n\n\t\t\tmatcherOut = matcher ?\n\t\t\t\t// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,\n\t\t\t\tpostFinder || ( seed ? preFilter : preexisting || postFilter ) ?\n\n\t\t\t\t\t// ...intermediate processing is necessary\n\t\t\t\t\t[] :\n\n\t\t\t\t\t// ...otherwise use results directly\n\t\t\t\t\tresults :\n\t\t\t\tmatcherIn;\n\n\t\t// Find primary matches\n\t\tif ( matcher ) {\n\t\t\tmatcher( matcherIn, matcherOut, context, xml );\n\t\t}\n\n\t\t// Apply postFilter\n\t\tif ( postFilter ) {\n\t\t\ttemp = condense( matcherOut, postMap );\n\t\t\tpostFilter( temp, [], context, xml );\n\n\t\t\t// Un-match failing elements by moving them back to matcherIn\n\t\t\ti = temp.length;\n\t\t\twhile ( i-- ) {\n\t\t\t\tif ( (elem = temp[i]) ) {\n\t\t\t\t\tmatcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif ( seed ) {\n\t\t\tif ( postFinder || preFilter ) {\n\t\t\t\tif ( postFinder ) {\n\t\t\t\t\t// Get the final matcherOut by condensing this intermediate into postFinder contexts\n\t\t\t\t\ttemp = [];\n\t\t\t\t\ti = matcherOut.length;\n\t\t\t\t\twhile ( i-- ) {\n\t\t\t\t\t\tif ( (elem = matcherOut[i]) ) {\n\t\t\t\t\t\t\t// Restore matcherIn since elem is not yet a final match\n\t\t\t\t\t\t\ttemp.push( (matcherIn[i] = elem) );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tpostFinder( null, (matcherOut = []), temp, xml );\n\t\t\t\t}\n\n\t\t\t\t// Move matched elements from seed to results to keep them synchronized\n\t\t\t\ti = matcherOut.length;\n\t\t\t\twhile ( i-- ) {\n\t\t\t\t\tif ( (elem = matcherOut[i]) &&\n\t\t\t\t\t\t(temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {\n\n\t\t\t\t\t\tseed[temp] = !(results[temp] = elem);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t// Add elements to results, through postFinder if defined\n\t\t} else {\n\t\t\tmatcherOut = condense(\n\t\t\t\tmatcherOut === results ?\n\t\t\t\t\tmatcherOut.splice( preexisting, matcherOut.length ) :\n\t\t\t\t\tmatcherOut\n\t\t\t);\n\t\t\tif ( postFinder ) {\n\t\t\t\tpostFinder( null, results, matcherOut, xml );\n\t\t\t} else {\n\t\t\t\tpush.apply( results, matcherOut );\n\t\t\t}\n\t\t}\n\t});\n}\n\nfunction matcherFromTokens( tokens ) {\n\tvar checkContext, matcher, j,\n\t\tlen = tokens.length,\n\t\tleadingRelative = Expr.relative[ tokens[0].type ],\n\t\timplicitRelative = leadingRelative || Expr.relative[\" \"],\n\t\ti = leadingRelative ? 1 : 0,\n\n\t\t// The foundational matcher ensures that elements are reachable from top-level context(s)\n\t\tmatchContext = addCombinator( function( elem ) {\n\t\t\treturn elem === checkContext;\n\t\t}, implicitRelative, true ),\n\t\tmatchAnyContext = addCombinator( function( elem ) {\n\t\t\treturn indexOf( checkContext, elem ) > -1;\n\t\t}, implicitRelative, true ),\n\t\tmatchers = [ function( elem, context, xml ) {\n\t\t\tvar ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (\n\t\t\t\t(checkContext = context).nodeType ?\n\t\t\t\t\tmatchContext( elem, context, xml ) :\n\t\t\t\t\tmatchAnyContext( elem, context, xml ) );\n\t\t\t// Avoid hanging onto element (issue #299)\n\t\t\tcheckContext = null;\n\t\t\treturn ret;\n\t\t} ];\n\n\tfor ( ; i < len; i++ ) {\n\t\tif ( (matcher = Expr.relative[ tokens[i].type ]) ) {\n\t\t\tmatchers = [ addCombinator(elementMatcher( matchers ), matcher) ];\n\t\t} else {\n\t\t\tmatcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );\n\n\t\t\t// Return special upon seeing a positional matcher\n\t\t\tif ( matcher[ expando ] ) {\n\t\t\t\t// Find the next relative operator (if any) for proper handling\n\t\t\t\tj = ++i;\n\t\t\t\tfor ( ; j < len; j++ ) {\n\t\t\t\t\tif ( Expr.relative[ tokens[j].type ] ) {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn setMatcher(\n\t\t\t\t\ti > 1 && elementMatcher( matchers ),\n\t\t\t\t\ti > 1 && toSelector(\n\t\t\t\t\t\t// If the preceding token was a descendant combinator, insert an implicit any-element `*`\n\t\t\t\t\t\ttokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === \" \" ? \"*\" : \"\" })\n\t\t\t\t\t).replace( rtrim, \"$1\" ),\n\t\t\t\t\tmatcher,\n\t\t\t\t\ti < j && matcherFromTokens( tokens.slice( i, j ) ),\n\t\t\t\t\tj < len && matcherFromTokens( (tokens = tokens.slice( j )) ),\n\t\t\t\t\tj < len && toSelector( tokens )\n\t\t\t\t);\n\t\t\t}\n\t\t\tmatchers.push( matcher );\n\t\t}\n\t}\n\n\treturn elementMatcher( matchers );\n}\n\nfunction matcherFromGroupMatchers( elementMatchers, setMatchers ) {\n\tvar bySet = setMatchers.length > 0,\n\t\tbyElement = elementMatchers.length > 0,\n\t\tsuperMatcher = function( seed, context, xml, results, outermost ) {\n\t\t\tvar elem, j, matcher,\n\t\t\t\tmatchedCount = 0,\n\t\t\t\ti = \"0\",\n\t\t\t\tunmatched = seed && [],\n\t\t\t\tsetMatched = [],\n\t\t\t\tcontextBackup = outermostContext,\n\t\t\t\t// We must always have either seed elements or outermost context\n\t\t\t\telems = seed || byElement && Expr.find[\"TAG\"]( \"*\", outermost ),\n\t\t\t\t// Use integer dirruns iff this is the outermost matcher\n\t\t\t\tdirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),\n\t\t\t\tlen = elems.length;\n\n\t\t\tif ( outermost ) {\n\t\t\t\toutermostContext = context === document || context || outermost;\n\t\t\t}\n\n\t\t\t// Add elements passing elementMatchers directly to results\n\t\t\t// Support: IE<9, Safari\n\t\t\t// Tolerate NodeList properties (IE: \"length\"; Safari: <number>) matching elements by id\n\t\t\tfor ( ; i !== len && (elem = elems[i]) != null; i++ ) {\n\t\t\t\tif ( byElement && elem ) {\n\t\t\t\t\tj = 0;\n\t\t\t\t\tif ( !context && elem.ownerDocument !== document ) {\n\t\t\t\t\t\tsetDocument( elem );\n\t\t\t\t\t\txml = !documentIsHTML;\n\t\t\t\t\t}\n\t\t\t\t\twhile ( (matcher = elementMatchers[j++]) ) {\n\t\t\t\t\t\tif ( matcher( elem, context || document, xml) ) {\n\t\t\t\t\t\t\tresults.push( elem );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tif ( outermost ) {\n\t\t\t\t\t\tdirruns = dirrunsUnique;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Track unmatched elements for set filters\n\t\t\t\tif ( bySet ) {\n\t\t\t\t\t// They will have gone through all possible matchers\n\t\t\t\t\tif ( (elem = !matcher && elem) ) {\n\t\t\t\t\t\tmatchedCount--;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Lengthen the array for every element, matched or not\n\t\t\t\t\tif ( seed ) {\n\t\t\t\t\t\tunmatched.push( elem );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// `i` is now the count of elements visited above, and adding it to `matchedCount`\n\t\t\t// makes the latter nonnegative.\n\t\t\tmatchedCount += i;\n\n\t\t\t// Apply set filters to unmatched elements\n\t\t\t// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`\n\t\t\t// equals `i`), unless we didn't visit _any_ elements in the above loop because we have\n\t\t\t// no element matchers and no seed.\n\t\t\t// Incrementing an initially-string \"0\" `i` allows `i` to remain a string only in that\n\t\t\t// case, which will result in a \"00\" `matchedCount` that differs from `i` but is also\n\t\t\t// numerically zero.\n\t\t\tif ( bySet && i !== matchedCount ) {\n\t\t\t\tj = 0;\n\t\t\t\twhile ( (matcher = setMatchers[j++]) ) {\n\t\t\t\t\tmatcher( unmatched, setMatched, context, xml );\n\t\t\t\t}\n\n\t\t\t\tif ( seed ) {\n\t\t\t\t\t// Reintegrate element matches to eliminate the need for sorting\n\t\t\t\t\tif ( matchedCount > 0 ) {\n\t\t\t\t\t\twhile ( i-- ) {\n\t\t\t\t\t\t\tif ( !(unmatched[i] || setMatched[i]) ) {\n\t\t\t\t\t\t\t\tsetMatched[i] = pop.call( results );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Discard index placeholder values to get only actual matches\n\t\t\t\t\tsetMatched = condense( setMatched );\n\t\t\t\t}\n\n\t\t\t\t// Add matches to results\n\t\t\t\tpush.apply( results, setMatched );\n\n\t\t\t\t// Seedless set matches succeeding multiple successful matchers stipulate sorting\n\t\t\t\tif ( outermost && !seed && setMatched.length > 0 &&\n\t\t\t\t\t( matchedCount + setMatchers.length ) > 1 ) {\n\n\t\t\t\t\tSizzle.uniqueSort( results );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Override manipulation of globals by nested matchers\n\t\t\tif ( outermost ) {\n\t\t\t\tdirruns = dirrunsUnique;\n\t\t\t\toutermostContext = contextBackup;\n\t\t\t}\n\n\t\t\treturn unmatched;\n\t\t};\n\n\treturn bySet ?\n\t\tmarkFunction( superMatcher ) :\n\t\tsuperMatcher;\n}\n\ncompile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {\n\tvar i,\n\t\tsetMatchers = [],\n\t\telementMatchers = [],\n\t\tcached = compilerCache[ selector + \" \" ];\n\n\tif ( !cached ) {\n\t\t// Generate a function of recursive functions that can be used to check each element\n\t\tif ( !match ) {\n\t\t\tmatch = tokenize( selector );\n\t\t}\n\t\ti = match.length;\n\t\twhile ( i-- ) {\n\t\t\tcached = matcherFromTokens( match[i] );\n\t\t\tif ( cached[ expando ] ) {\n\t\t\t\tsetMatchers.push( cached );\n\t\t\t} else {\n\t\t\t\telementMatchers.push( cached );\n\t\t\t}\n\t\t}\n\n\t\t// Cache the compiled function\n\t\tcached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );\n\n\t\t// Save selector and tokenization\n\t\tcached.selector = selector;\n\t}\n\treturn cached;\n};\n\n/**\n * A low-level selection function that works with Sizzle's compiled\n *  selector functions\n * @param {String|Function} selector A selector or a pre-compiled\n *  selector function built with Sizzle.compile\n * @param {Element} context\n * @param {Array} [results]\n * @param {Array} [seed] A set of elements to match against\n */\nselect = Sizzle.select = function( selector, context, results, seed ) {\n\tvar i, tokens, token, type, find,\n\t\tcompiled = typeof selector === \"function\" && selector,\n\t\tmatch = !seed && tokenize( (selector = compiled.selector || selector) );\n\n\tresults = results || [];\n\n\t// Try to minimize operations if there is only one selector in the list and no seed\n\t// (the latter of which guarantees us context)\n\tif ( match.length === 1 ) {\n\n\t\t// Reduce context if the leading compound selector is an ID\n\t\ttokens = match[0] = match[0].slice( 0 );\n\t\tif ( tokens.length > 2 && (token = tokens[0]).type === \"ID\" &&\n\t\t\t\tcontext.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) {\n\n\t\t\tcontext = ( Expr.find[\"ID\"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];\n\t\t\tif ( !context ) {\n\t\t\t\treturn results;\n\n\t\t\t// Precompiled matchers will still verify ancestry, so step up a level\n\t\t\t} else if ( compiled ) {\n\t\t\t\tcontext = context.parentNode;\n\t\t\t}\n\n\t\t\tselector = selector.slice( tokens.shift().value.length );\n\t\t}\n\n\t\t// Fetch a seed set for right-to-left matching\n\t\ti = matchExpr[\"needsContext\"].test( selector ) ? 0 : tokens.length;\n\t\twhile ( i-- ) {\n\t\t\ttoken = tokens[i];\n\n\t\t\t// Abort if we hit a combinator\n\t\t\tif ( Expr.relative[ (type = token.type) ] ) {\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tif ( (find = Expr.find[ type ]) ) {\n\t\t\t\t// Search, expanding context for leading sibling combinators\n\t\t\t\tif ( (seed = find(\n\t\t\t\t\ttoken.matches[0].replace( runescape, funescape ),\n\t\t\t\t\trsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context\n\t\t\t\t)) ) {\n\n\t\t\t\t\t// If seed is empty or no tokens remain, we can return early\n\t\t\t\t\ttokens.splice( i, 1 );\n\t\t\t\t\tselector = seed.length && toSelector( tokens );\n\t\t\t\t\tif ( !selector ) {\n\t\t\t\t\t\tpush.apply( results, seed );\n\t\t\t\t\t\treturn results;\n\t\t\t\t\t}\n\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// Compile and execute a filtering function if one is not provided\n\t// Provide `match` to avoid retokenization if we modified the selector above\n\t( compiled || compile( selector, match ) )(\n\t\tseed,\n\t\tcontext,\n\t\t!documentIsHTML,\n\t\tresults,\n\t\t!context || rsibling.test( selector ) && testContext( context.parentNode ) || context\n\t);\n\treturn results;\n};\n\n// One-time assignments\n\n// Sort stability\nsupport.sortStable = expando.split(\"\").sort( sortOrder ).join(\"\") === expando;\n\n// Support: Chrome 14-35+\n// Always assume duplicates if they aren't passed to the comparison function\nsupport.detectDuplicates = !!hasDuplicate;\n\n// Initialize against the default document\nsetDocument();\n\n// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)\n// Detached nodes confoundingly follow *each other*\nsupport.sortDetached = assert(function( el ) {\n\t// Should return 1, but returns 4 (following)\n\treturn el.compareDocumentPosition( document.createElement(\"fieldset\") ) & 1;\n});\n\n// Support: IE<8\n// Prevent attribute/property \"interpolation\"\n// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx\nif ( !assert(function( el ) {\n\tel.innerHTML = \"<a href='#'></a>\";\n\treturn el.firstChild.getAttribute(\"href\") === \"#\" ;\n}) ) {\n\taddHandle( \"type|href|height|width\", function( elem, name, isXML ) {\n\t\tif ( !isXML ) {\n\t\t\treturn elem.getAttribute( name, name.toLowerCase() === \"type\" ? 1 : 2 );\n\t\t}\n\t});\n}\n\n// Support: IE<9\n// Use defaultValue in place of getAttribute(\"value\")\nif ( !support.attributes || !assert(function( el ) {\n\tel.innerHTML = \"<input/>\";\n\tel.firstChild.setAttribute( \"value\", \"\" );\n\treturn el.firstChild.getAttribute( \"value\" ) === \"\";\n}) ) {\n\taddHandle( \"value\", function( elem, name, isXML ) {\n\t\tif ( !isXML && elem.nodeName.toLowerCase() === \"input\" ) {\n\t\t\treturn elem.defaultValue;\n\t\t}\n\t});\n}\n\n// Support: IE<9\n// Use getAttributeNode to fetch booleans when getAttribute lies\nif ( !assert(function( el ) {\n\treturn el.getAttribute(\"disabled\") == null;\n}) ) {\n\taddHandle( booleans, function( elem, name, isXML ) {\n\t\tvar val;\n\t\tif ( !isXML ) {\n\t\t\treturn elem[ name ] === true ? name.toLowerCase() :\n\t\t\t\t\t(val = elem.getAttributeNode( name )) && val.specified ?\n\t\t\t\t\tval.value :\n\t\t\t\tnull;\n\t\t}\n\t});\n}\n\nreturn Sizzle;\n\n})( window );\n\n\n\njQuery.find = Sizzle;\njQuery.expr = Sizzle.selectors;\n\n// Deprecated\njQuery.expr[ \":\" ] = jQuery.expr.pseudos;\njQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;\njQuery.text = Sizzle.getText;\njQuery.isXMLDoc = Sizzle.isXML;\njQuery.contains = Sizzle.contains;\njQuery.escapeSelector = Sizzle.escape;\n\n\n\n\nvar dir = function( elem, dir, until ) {\n\tvar matched = [],\n\t\ttruncate = until !== undefined;\n\n\twhile ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {\n\t\tif ( elem.nodeType === 1 ) {\n\t\t\tif ( truncate && jQuery( elem ).is( until ) ) {\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tmatched.push( elem );\n\t\t}\n\t}\n\treturn matched;\n};\n\n\nvar siblings = function( n, elem ) {\n\tvar matched = [];\n\n\tfor ( ; n; n = n.nextSibling ) {\n\t\tif ( n.nodeType === 1 && n !== elem ) {\n\t\t\tmatched.push( n );\n\t\t}\n\t}\n\n\treturn matched;\n};\n\n\nvar rneedsContext = jQuery.expr.match.needsContext;\n\nvar rsingleTag = ( /^<([a-z][^\\/\\0>:\\x20\\t\\r\\n\\f]*)[\\x20\\t\\r\\n\\f]*\\/?>(?:<\\/\\1>|)$/i );\n\n\n\nvar risSimple = /^.[^:#\\[\\.,]*$/;\n\n// Implement the identical functionality for filter and not\nfunction winnow( elements, qualifier, not ) {\n\tif ( jQuery.isFunction( qualifier ) ) {\n\t\treturn jQuery.grep( elements, function( elem, i ) {\n\t\t\treturn !!qualifier.call( elem, i, elem ) !== not;\n\t\t} );\n\t}\n\n\t// Single element\n\tif ( qualifier.nodeType ) {\n\t\treturn jQuery.grep( elements, function( elem ) {\n\t\t\treturn ( elem === qualifier ) !== not;\n\t\t} );\n\t}\n\n\t// Arraylike of elements (jQuery, arguments, Array)\n\tif ( typeof qualifier !== \"string\" ) {\n\t\treturn jQuery.grep( elements, function( elem ) {\n\t\t\treturn ( indexOf.call( qualifier, elem ) > -1 ) !== not;\n\t\t} );\n\t}\n\n\t// Simple selector that can be filtered directly, removing non-Elements\n\tif ( risSimple.test( qualifier ) ) {\n\t\treturn jQuery.filter( qualifier, elements, not );\n\t}\n\n\t// Complex selector, compare the two sets, removing non-Elements\n\tqualifier = jQuery.filter( qualifier, elements );\n\treturn jQuery.grep( elements, function( elem ) {\n\t\treturn ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1;\n\t} );\n}\n\njQuery.filter = function( expr, elems, not ) {\n\tvar elem = elems[ 0 ];\n\n\tif ( not ) {\n\t\texpr = \":not(\" + expr + \")\";\n\t}\n\n\tif ( elems.length === 1 && elem.nodeType === 1 ) {\n\t\treturn jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];\n\t}\n\n\treturn jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {\n\t\treturn elem.nodeType === 1;\n\t} ) );\n};\n\njQuery.fn.extend( {\n\tfind: function( selector ) {\n\t\tvar i, ret,\n\t\t\tlen = this.length,\n\t\t\tself = this;\n\n\t\tif ( typeof selector !== \"string\" ) {\n\t\t\treturn this.pushStack( jQuery( selector ).filter( function() {\n\t\t\t\tfor ( i = 0; i < len; i++ ) {\n\t\t\t\t\tif ( jQuery.contains( self[ i ], this ) ) {\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} ) );\n\t\t}\n\n\t\tret = this.pushStack( [] );\n\n\t\tfor ( i = 0; i < len; i++ ) {\n\t\t\tjQuery.find( selector, self[ i ], ret );\n\t\t}\n\n\t\treturn len > 1 ? jQuery.uniqueSort( ret ) : ret;\n\t},\n\tfilter: function( selector ) {\n\t\treturn this.pushStack( winnow( this, selector || [], false ) );\n\t},\n\tnot: function( selector ) {\n\t\treturn this.pushStack( winnow( this, selector || [], true ) );\n\t},\n\tis: function( selector ) {\n\t\treturn !!winnow(\n\t\t\tthis,\n\n\t\t\t// If this is a positional/relative selector, check membership in the returned set\n\t\t\t// so $(\"p:first\").is(\"p:last\") won't return true for a doc with two \"p\".\n\t\t\ttypeof selector === \"string\" && rneedsContext.test( selector ) ?\n\t\t\t\tjQuery( selector ) :\n\t\t\t\tselector || [],\n\t\t\tfalse\n\t\t).length;\n\t}\n} );\n\n\n// Initialize a jQuery object\n\n\n// A central reference to the root jQuery(document)\nvar rootjQuery,\n\n\t// A simple way to check for HTML strings\n\t// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)\n\t// Strict HTML recognition (#11290: must start with <)\n\t// Shortcut simple #id case for speed\n\trquickExpr = /^(?:\\s*(<[\\w\\W]+>)[^>]*|#([\\w-]+))$/,\n\n\tinit = jQuery.fn.init = function( selector, context, root ) {\n\t\tvar match, elem;\n\n\t\t// HANDLE: $(\"\"), $(null), $(undefined), $(false)\n\t\tif ( !selector ) {\n\t\t\treturn this;\n\t\t}\n\n\t\t// Method init() accepts an alternate rootjQuery\n\t\t// so migrate can support jQuery.sub (gh-2101)\n\t\troot = root || rootjQuery;\n\n\t\t// Handle HTML strings\n\t\tif ( typeof selector === \"string\" ) {\n\t\t\tif ( selector[ 0 ] === \"<\" &&\n\t\t\t\tselector[ selector.length - 1 ] === \">\" &&\n\t\t\t\tselector.length >= 3 ) {\n\n\t\t\t\t// Assume that strings that start and end with <> are HTML and skip the regex check\n\t\t\t\tmatch = [ null, selector, null ];\n\n\t\t\t} else {\n\t\t\t\tmatch = rquickExpr.exec( selector );\n\t\t\t}\n\n\t\t\t// Match html or make sure no context is specified for #id\n\t\t\tif ( match && ( match[ 1 ] || !context ) ) {\n\n\t\t\t\t// HANDLE: $(html) -> $(array)\n\t\t\t\tif ( match[ 1 ] ) {\n\t\t\t\t\tcontext = context instanceof jQuery ? context[ 0 ] : context;\n\n\t\t\t\t\t// Option to run scripts is true for back-compat\n\t\t\t\t\t// Intentionally let the error be thrown if parseHTML is not present\n\t\t\t\t\tjQuery.merge( this, jQuery.parseHTML(\n\t\t\t\t\t\tmatch[ 1 ],\n\t\t\t\t\t\tcontext && context.nodeType ? context.ownerDocument || context : document,\n\t\t\t\t\t\ttrue\n\t\t\t\t\t) );\n\n\t\t\t\t\t// HANDLE: $(html, props)\n\t\t\t\t\tif ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {\n\t\t\t\t\t\tfor ( match in context ) {\n\n\t\t\t\t\t\t\t// Properties of context are called as methods if possible\n\t\t\t\t\t\t\tif ( jQuery.isFunction( this[ match ] ) ) {\n\t\t\t\t\t\t\t\tthis[ match ]( context[ match ] );\n\n\t\t\t\t\t\t\t// ...and otherwise set as attributes\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\tthis.attr( match, context[ match ] );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\treturn this;\n\n\t\t\t\t// HANDLE: $(#id)\n\t\t\t\t} else {\n\t\t\t\t\telem = document.getElementById( match[ 2 ] );\n\n\t\t\t\t\tif ( elem ) {\n\n\t\t\t\t\t\t// Inject the element directly into the jQuery object\n\t\t\t\t\t\tthis[ 0 ] = elem;\n\t\t\t\t\t\tthis.length = 1;\n\t\t\t\t\t}\n\t\t\t\t\treturn this;\n\t\t\t\t}\n\n\t\t\t// HANDLE: $(expr, $(...))\n\t\t\t} else if ( !context || context.jquery ) {\n\t\t\t\treturn ( context || root ).find( selector );\n\n\t\t\t// HANDLE: $(expr, context)\n\t\t\t// (which is just equivalent to: $(context).find(expr)\n\t\t\t} else {\n\t\t\t\treturn this.constructor( context ).find( selector );\n\t\t\t}\n\n\t\t// HANDLE: $(DOMElement)\n\t\t} else if ( selector.nodeType ) {\n\t\t\tthis[ 0 ] = selector;\n\t\t\tthis.length = 1;\n\t\t\treturn this;\n\n\t\t// HANDLE: $(function)\n\t\t// Shortcut for document ready\n\t\t} else if ( jQuery.isFunction( selector ) ) {\n\t\t\treturn root.ready !== undefined ?\n\t\t\t\troot.ready( selector ) :\n\n\t\t\t\t// Execute immediately if ready is not present\n\t\t\t\tselector( jQuery );\n\t\t}\n\n\t\treturn jQuery.makeArray( selector, this );\n\t};\n\n// Give the init function the jQuery prototype for later instantiation\ninit.prototype = jQuery.fn;\n\n// Initialize central reference\nrootjQuery = jQuery( document );\n\n\nvar rparentsprev = /^(?:parents|prev(?:Until|All))/,\n\n\t// Methods guaranteed to produce a unique set when starting from a unique set\n\tguaranteedUnique = {\n\t\tchildren: true,\n\t\tcontents: true,\n\t\tnext: true,\n\t\tprev: true\n\t};\n\njQuery.fn.extend( {\n\thas: function( target ) {\n\t\tvar targets = jQuery( target, this ),\n\t\t\tl = targets.length;\n\n\t\treturn this.filter( function() {\n\t\t\tvar i = 0;\n\t\t\tfor ( ; i < l; i++ ) {\n\t\t\t\tif ( jQuery.contains( this, targets[ i ] ) ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t},\n\n\tclosest: function( selectors, context ) {\n\t\tvar cur,\n\t\t\ti = 0,\n\t\t\tl = this.length,\n\t\t\tmatched = [],\n\t\t\ttargets = typeof selectors !== \"string\" && jQuery( selectors );\n\n\t\t// Positional selectors never match, since there's no _selection_ context\n\t\tif ( !rneedsContext.test( selectors ) ) {\n\t\t\tfor ( ; i < l; i++ ) {\n\t\t\t\tfor ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {\n\n\t\t\t\t\t// Always skip document fragments\n\t\t\t\t\tif ( cur.nodeType < 11 && ( targets ?\n\t\t\t\t\t\ttargets.index( cur ) > -1 :\n\n\t\t\t\t\t\t// Don't pass non-elements to Sizzle\n\t\t\t\t\t\tcur.nodeType === 1 &&\n\t\t\t\t\t\t\tjQuery.find.matchesSelector( cur, selectors ) ) ) {\n\n\t\t\t\t\t\tmatched.push( cur );\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );\n\t},\n\n\t// Determine the position of an element within the set\n\tindex: function( elem ) {\n\n\t\t// No argument, return index in parent\n\t\tif ( !elem ) {\n\t\t\treturn ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;\n\t\t}\n\n\t\t// Index in selector\n\t\tif ( typeof elem === \"string\" ) {\n\t\t\treturn indexOf.call( jQuery( elem ), this[ 0 ] );\n\t\t}\n\n\t\t// Locate the position of the desired element\n\t\treturn indexOf.call( this,\n\n\t\t\t// If it receives a jQuery object, the first element is used\n\t\t\telem.jquery ? elem[ 0 ] : elem\n\t\t);\n\t},\n\n\tadd: function( selector, context ) {\n\t\treturn this.pushStack(\n\t\t\tjQuery.uniqueSort(\n\t\t\t\tjQuery.merge( this.get(), jQuery( selector, context ) )\n\t\t\t)\n\t\t);\n\t},\n\n\taddBack: function( selector ) {\n\t\treturn this.add( selector == null ?\n\t\t\tthis.prevObject : this.prevObject.filter( selector )\n\t\t);\n\t}\n} );\n\nfunction sibling( cur, dir ) {\n\twhile ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}\n\treturn cur;\n}\n\njQuery.each( {\n\tparent: function( elem ) {\n\t\tvar parent = elem.parentNode;\n\t\treturn parent && parent.nodeType !== 11 ? parent : null;\n\t},\n\tparents: function( elem ) {\n\t\treturn dir( elem, \"parentNode\" );\n\t},\n\tparentsUntil: function( elem, i, until ) {\n\t\treturn dir( elem, \"parentNode\", until );\n\t},\n\tnext: function( elem ) {\n\t\treturn sibling( elem, \"nextSibling\" );\n\t},\n\tprev: function( elem ) {\n\t\treturn sibling( elem, \"previousSibling\" );\n\t},\n\tnextAll: function( elem ) {\n\t\treturn dir( elem, \"nextSibling\" );\n\t},\n\tprevAll: function( elem ) {\n\t\treturn dir( elem, \"previousSibling\" );\n\t},\n\tnextUntil: function( elem, i, until ) {\n\t\treturn dir( elem, \"nextSibling\", until );\n\t},\n\tprevUntil: function( elem, i, until ) {\n\t\treturn dir( elem, \"previousSibling\", until );\n\t},\n\tsiblings: function( elem ) {\n\t\treturn siblings( ( elem.parentNode || {} ).firstChild, elem );\n\t},\n\tchildren: function( elem ) {\n\t\treturn siblings( elem.firstChild );\n\t},\n\tcontents: function( elem ) {\n\t\treturn elem.contentDocument || jQuery.merge( [], elem.childNodes );\n\t}\n}, function( name, fn ) {\n\tjQuery.fn[ name ] = function( until, selector ) {\n\t\tvar matched = jQuery.map( this, fn, until );\n\n\t\tif ( name.slice( -5 ) !== \"Until\" ) {\n\t\t\tselector = until;\n\t\t}\n\n\t\tif ( selector && typeof selector === \"string\" ) {\n\t\t\tmatched = jQuery.filter( selector, matched );\n\t\t}\n\n\t\tif ( this.length > 1 ) {\n\n\t\t\t// Remove duplicates\n\t\t\tif ( !guaranteedUnique[ name ] ) {\n\t\t\t\tjQuery.uniqueSort( matched );\n\t\t\t}\n\n\t\t\t// Reverse order for parents* and prev-derivatives\n\t\t\tif ( rparentsprev.test( name ) ) {\n\t\t\t\tmatched.reverse();\n\t\t\t}\n\t\t}\n\n\t\treturn this.pushStack( matched );\n\t};\n} );\nvar rnothtmlwhite = ( /[^\\x20\\t\\r\\n\\f]+/g );\n\n\n\n// Convert String-formatted options into Object-formatted ones\nfunction createOptions( options ) {\n\tvar object = {};\n\tjQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {\n\t\tobject[ flag ] = true;\n\t} );\n\treturn object;\n}\n\n/*\n * Create a callback list using the following parameters:\n *\n *\toptions: an optional list of space-separated options that will change how\n *\t\t\tthe callback list behaves or a more traditional option object\n *\n * By default a callback list will act like an event callback list and can be\n * \"fired\" multiple times.\n *\n * Possible options:\n *\n *\tonce:\t\t\twill ensure the callback list can only be fired once (like a Deferred)\n *\n *\tmemory:\t\t\twill keep track of previous values and will call any callback added\n *\t\t\t\t\tafter the list has been fired right away with the latest \"memorized\"\n *\t\t\t\t\tvalues (like a Deferred)\n *\n *\tunique:\t\t\twill ensure a callback can only be added once (no duplicate in the list)\n *\n *\tstopOnFalse:\tinterrupt callings when a callback returns false\n *\n */\njQuery.Callbacks = function( options ) {\n\n\t// Convert options from String-formatted to Object-formatted if needed\n\t// (we check in cache first)\n\toptions = typeof options === \"string\" ?\n\t\tcreateOptions( options ) :\n\t\tjQuery.extend( {}, options );\n\n\tvar // Flag to know if list is currently firing\n\t\tfiring,\n\n\t\t// Last fire value for non-forgettable lists\n\t\tmemory,\n\n\t\t// Flag to know if list was already fired\n\t\tfired,\n\n\t\t// Flag to prevent firing\n\t\tlocked,\n\n\t\t// Actual callback list\n\t\tlist = [],\n\n\t\t// Queue of execution data for repeatable lists\n\t\tqueue = [],\n\n\t\t// Index of currently firing callback (modified by add/remove as needed)\n\t\tfiringIndex = -1,\n\n\t\t// Fire callbacks\n\t\tfire = function() {\n\n\t\t\t// Enforce single-firing\n\t\t\tlocked = options.once;\n\n\t\t\t// Execute callbacks for all pending executions,\n\t\t\t// respecting firingIndex overrides and runtime changes\n\t\t\tfired = firing = true;\n\t\t\tfor ( ; queue.length; firingIndex = -1 ) {\n\t\t\t\tmemory = queue.shift();\n\t\t\t\twhile ( ++firingIndex < list.length ) {\n\n\t\t\t\t\t// Run callback and check for early termination\n\t\t\t\t\tif ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&\n\t\t\t\t\t\toptions.stopOnFalse ) {\n\n\t\t\t\t\t\t// Jump to end and forget the data so .add doesn't re-fire\n\t\t\t\t\t\tfiringIndex = list.length;\n\t\t\t\t\t\tmemory = false;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Forget the data if we're done with it\n\t\t\tif ( !options.memory ) {\n\t\t\t\tmemory = false;\n\t\t\t}\n\n\t\t\tfiring = false;\n\n\t\t\t// Clean up if we're done firing for good\n\t\t\tif ( locked ) {\n\n\t\t\t\t// Keep an empty list if we have data for future add calls\n\t\t\t\tif ( memory ) {\n\t\t\t\t\tlist = [];\n\n\t\t\t\t// Otherwise, this object is spent\n\t\t\t\t} else {\n\t\t\t\t\tlist = \"\";\n\t\t\t\t}\n\t\t\t}\n\t\t},\n\n\t\t// Actual Callbacks object\n\t\tself = {\n\n\t\t\t// Add a callback or a collection of callbacks to the list\n\t\t\tadd: function() {\n\t\t\t\tif ( list ) {\n\n\t\t\t\t\t// If we have memory from a past run, we should fire after adding\n\t\t\t\t\tif ( memory && !firing ) {\n\t\t\t\t\t\tfiringIndex = list.length - 1;\n\t\t\t\t\t\tqueue.push( memory );\n\t\t\t\t\t}\n\n\t\t\t\t\t( function add( args ) {\n\t\t\t\t\t\tjQuery.each( args, function( _, arg ) {\n\t\t\t\t\t\t\tif ( jQuery.isFunction( arg ) ) {\n\t\t\t\t\t\t\t\tif ( !options.unique || !self.has( arg ) ) {\n\t\t\t\t\t\t\t\t\tlist.push( arg );\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t} else if ( arg && arg.length && jQuery.type( arg ) !== \"string\" ) {\n\n\t\t\t\t\t\t\t\t// Inspect recursively\n\t\t\t\t\t\t\t\tadd( arg );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t} );\n\t\t\t\t\t} )( arguments );\n\n\t\t\t\t\tif ( memory && !firing ) {\n\t\t\t\t\t\tfire();\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn this;\n\t\t\t},\n\n\t\t\t// Remove a callback from the list\n\t\t\tremove: function() {\n\t\t\t\tjQuery.each( arguments, function( _, arg ) {\n\t\t\t\t\tvar index;\n\t\t\t\t\twhile ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {\n\t\t\t\t\t\tlist.splice( index, 1 );\n\n\t\t\t\t\t\t// Handle firing indexes\n\t\t\t\t\t\tif ( index <= firingIndex ) {\n\t\t\t\t\t\t\tfiringIndex--;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t} );\n\t\t\t\treturn this;\n\t\t\t},\n\n\t\t\t// Check if a given callback is in the list.\n\t\t\t// If no argument is given, return whether or not list has callbacks attached.\n\t\t\thas: function( fn ) {\n\t\t\t\treturn fn ?\n\t\t\t\t\tjQuery.inArray( fn, list ) > -1 :\n\t\t\t\t\tlist.length > 0;\n\t\t\t},\n\n\t\t\t// Remove all callbacks from the list\n\t\t\tempty: function() {\n\t\t\t\tif ( list ) {\n\t\t\t\t\tlist = [];\n\t\t\t\t}\n\t\t\t\treturn this;\n\t\t\t},\n\n\t\t\t// Disable .fire and .add\n\t\t\t// Abort any current/pending executions\n\t\t\t// Clear all callbacks and values\n\t\t\tdisable: function() {\n\t\t\t\tlocked = queue = [];\n\t\t\t\tlist = memory = \"\";\n\t\t\t\treturn this;\n\t\t\t},\n\t\t\tdisabled: function() {\n\t\t\t\treturn !list;\n\t\t\t},\n\n\t\t\t// Disable .fire\n\t\t\t// Also disable .add unless we have memory (since it would have no effect)\n\t\t\t// Abort any pending executions\n\t\t\tlock: function() {\n\t\t\t\tlocked = queue = [];\n\t\t\t\tif ( !memory && !firing ) {\n\t\t\t\t\tlist = memory = \"\";\n\t\t\t\t}\n\t\t\t\treturn this;\n\t\t\t},\n\t\t\tlocked: function() {\n\t\t\t\treturn !!locked;\n\t\t\t},\n\n\t\t\t// Call all callbacks with the given context and arguments\n\t\t\tfireWith: function( context, args ) {\n\t\t\t\tif ( !locked ) {\n\t\t\t\t\targs = args || [];\n\t\t\t\t\targs = [ context, args.slice ? args.slice() : args ];\n\t\t\t\t\tqueue.push( args );\n\t\t\t\t\tif ( !firing ) {\n\t\t\t\t\t\tfire();\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn this;\n\t\t\t},\n\n\t\t\t// Call all the callbacks with the given arguments\n\t\t\tfire: function() {\n\t\t\t\tself.fireWith( this, arguments );\n\t\t\t\treturn this;\n\t\t\t},\n\n\t\t\t// To know if the callbacks have already been called at least once\n\t\t\tfired: function() {\n\t\t\t\treturn !!fired;\n\t\t\t}\n\t\t};\n\n\treturn self;\n};\n\n\nfunction Identity( v ) {\n\treturn v;\n}\nfunction Thrower( ex ) {\n\tthrow ex;\n}\n\nfunction adoptValue( value, resolve, reject ) {\n\tvar method;\n\n\ttry {\n\n\t\t// Check for promise aspect first to privilege synchronous behavior\n\t\tif ( value && jQuery.isFunction( ( method = value.promise ) ) ) {\n\t\t\tmethod.call( value ).done( resolve ).fail( reject );\n\n\t\t// Other thenables\n\t\t} else if ( value && jQuery.isFunction( ( method = value.then ) ) ) {\n\t\t\tmethod.call( value, resolve, reject );\n\n\t\t// Other non-thenables\n\t\t} else {\n\n\t\t\t// Support: Android 4.0 only\n\t\t\t// Strict mode functions invoked without .call/.apply get global-object context\n\t\t\tresolve.call( undefined, value );\n\t\t}\n\n\t// For Promises/A+, convert exceptions into rejections\n\t// Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in\n\t// Deferred#then to conditionally suppress rejection.\n\t} catch ( value ) {\n\n\t\t// Support: Android 4.0 only\n\t\t// Strict mode functions invoked without .call/.apply get global-object context\n\t\treject.call( undefined, value );\n\t}\n}\n\njQuery.extend( {\n\n\tDeferred: function( func ) {\n\t\tvar tuples = [\n\n\t\t\t\t// action, add listener, callbacks,\n\t\t\t\t// ... .then handlers, argument index, [final state]\n\t\t\t\t[ \"notify\", \"progress\", jQuery.Callbacks( \"memory\" ),\n\t\t\t\t\tjQuery.Callbacks( \"memory\" ), 2 ],\n\t\t\t\t[ \"resolve\", \"done\", jQuery.Callbacks( \"once memory\" ),\n\t\t\t\t\tjQuery.Callbacks( \"once memory\" ), 0, \"resolved\" ],\n\t\t\t\t[ \"reject\", \"fail\", jQuery.Callbacks( \"once memory\" ),\n\t\t\t\t\tjQuery.Callbacks( \"once memory\" ), 1, \"rejected\" ]\n\t\t\t],\n\t\t\tstate = \"pending\",\n\t\t\tpromise = {\n\t\t\t\tstate: function() {\n\t\t\t\t\treturn state;\n\t\t\t\t},\n\t\t\t\talways: function() {\n\t\t\t\t\tdeferred.done( arguments ).fail( arguments );\n\t\t\t\t\treturn this;\n\t\t\t\t},\n\t\t\t\t\"catch\": function( fn ) {\n\t\t\t\t\treturn promise.then( null, fn );\n\t\t\t\t},\n\n\t\t\t\t// Keep pipe for back-compat\n\t\t\t\tpipe: function( /* fnDone, fnFail, fnProgress */ ) {\n\t\t\t\t\tvar fns = arguments;\n\n\t\t\t\t\treturn jQuery.Deferred( function( newDefer ) {\n\t\t\t\t\t\tjQuery.each( tuples, function( i, tuple ) {\n\n\t\t\t\t\t\t\t// Map tuples (progress, done, fail) to arguments (done, fail, progress)\n\t\t\t\t\t\t\tvar fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];\n\n\t\t\t\t\t\t\t// deferred.progress(function() { bind to newDefer or newDefer.notify })\n\t\t\t\t\t\t\t// deferred.done(function() { bind to newDefer or newDefer.resolve })\n\t\t\t\t\t\t\t// deferred.fail(function() { bind to newDefer or newDefer.reject })\n\t\t\t\t\t\t\tdeferred[ tuple[ 1 ] ]( function() {\n\t\t\t\t\t\t\t\tvar returned = fn && fn.apply( this, arguments );\n\t\t\t\t\t\t\t\tif ( returned && jQuery.isFunction( returned.promise ) ) {\n\t\t\t\t\t\t\t\t\treturned.promise()\n\t\t\t\t\t\t\t\t\t\t.progress( newDefer.notify )\n\t\t\t\t\t\t\t\t\t\t.done( newDefer.resolve )\n\t\t\t\t\t\t\t\t\t\t.fail( newDefer.reject );\n\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\tnewDefer[ tuple[ 0 ] + \"With\" ](\n\t\t\t\t\t\t\t\t\t\tthis,\n\t\t\t\t\t\t\t\t\t\tfn ? [ returned ] : arguments\n\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t} );\n\t\t\t\t\t\t} );\n\t\t\t\t\t\tfns = null;\n\t\t\t\t\t} ).promise();\n\t\t\t\t},\n\t\t\t\tthen: function( onFulfilled, onRejected, onProgress ) {\n\t\t\t\t\tvar maxDepth = 0;\n\t\t\t\t\tfunction resolve( depth, deferred, handler, special ) {\n\t\t\t\t\t\treturn function() {\n\t\t\t\t\t\t\tvar that = this,\n\t\t\t\t\t\t\t\targs = arguments,\n\t\t\t\t\t\t\t\tmightThrow = function() {\n\t\t\t\t\t\t\t\t\tvar returned, then;\n\n\t\t\t\t\t\t\t\t\t// Support: Promises/A+ section 2.3.3.3.3\n\t\t\t\t\t\t\t\t\t// https://promisesaplus.com/#point-59\n\t\t\t\t\t\t\t\t\t// Ignore double-resolution attempts\n\t\t\t\t\t\t\t\t\tif ( depth < maxDepth ) {\n\t\t\t\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\treturned = handler.apply( that, args );\n\n\t\t\t\t\t\t\t\t\t// Support: Promises/A+ section 2.3.1\n\t\t\t\t\t\t\t\t\t// https://promisesaplus.com/#point-48\n\t\t\t\t\t\t\t\t\tif ( returned === deferred.promise() ) {\n\t\t\t\t\t\t\t\t\t\tthrow new TypeError( \"Thenable self-resolution\" );\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\t// Support: Promises/A+ sections 2.3.3.1, 3.5\n\t\t\t\t\t\t\t\t\t// https://promisesaplus.com/#point-54\n\t\t\t\t\t\t\t\t\t// https://promisesaplus.com/#point-75\n\t\t\t\t\t\t\t\t\t// Retrieve `then` only once\n\t\t\t\t\t\t\t\t\tthen = returned &&\n\n\t\t\t\t\t\t\t\t\t\t// Support: Promises/A+ section 2.3.4\n\t\t\t\t\t\t\t\t\t\t// https://promisesaplus.com/#point-64\n\t\t\t\t\t\t\t\t\t\t// Only check objects and functions for thenability\n\t\t\t\t\t\t\t\t\t\t( typeof returned === \"object\" ||\n\t\t\t\t\t\t\t\t\t\t\ttypeof returned === \"function\" ) &&\n\t\t\t\t\t\t\t\t\t\treturned.then;\n\n\t\t\t\t\t\t\t\t\t// Handle a returned thenable\n\t\t\t\t\t\t\t\t\tif ( jQuery.isFunction( then ) ) {\n\n\t\t\t\t\t\t\t\t\t\t// Special processors (notify) just wait for resolution\n\t\t\t\t\t\t\t\t\t\tif ( special ) {\n\t\t\t\t\t\t\t\t\t\t\tthen.call(\n\t\t\t\t\t\t\t\t\t\t\t\treturned,\n\t\t\t\t\t\t\t\t\t\t\t\tresolve( maxDepth, deferred, Identity, special ),\n\t\t\t\t\t\t\t\t\t\t\t\tresolve( maxDepth, deferred, Thrower, special )\n\t\t\t\t\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\t\t\t\t// Normal processors (resolve) also hook into progress\n\t\t\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\t\t\t// ...and disregard older resolution values\n\t\t\t\t\t\t\t\t\t\t\tmaxDepth++;\n\n\t\t\t\t\t\t\t\t\t\t\tthen.call(\n\t\t\t\t\t\t\t\t\t\t\t\treturned,\n\t\t\t\t\t\t\t\t\t\t\t\tresolve( maxDepth, deferred, Identity, special ),\n\t\t\t\t\t\t\t\t\t\t\t\tresolve( maxDepth, deferred, Thrower, special ),\n\t\t\t\t\t\t\t\t\t\t\t\tresolve( maxDepth, deferred, Identity,\n\t\t\t\t\t\t\t\t\t\t\t\t\tdeferred.notifyWith )\n\t\t\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\t// Handle all other returned values\n\t\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\t\t// Only substitute handlers pass on context\n\t\t\t\t\t\t\t\t\t\t// and multiple values (non-spec behavior)\n\t\t\t\t\t\t\t\t\t\tif ( handler !== Identity ) {\n\t\t\t\t\t\t\t\t\t\t\tthat = undefined;\n\t\t\t\t\t\t\t\t\t\t\targs = [ returned ];\n\t\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\t\t// Process the value(s)\n\t\t\t\t\t\t\t\t\t\t// Default process is resolve\n\t\t\t\t\t\t\t\t\t\t( special || deferred.resolveWith )( that, args );\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t},\n\n\t\t\t\t\t\t\t\t// Only normal processors (resolve) catch and reject exceptions\n\t\t\t\t\t\t\t\tprocess = special ?\n\t\t\t\t\t\t\t\t\tmightThrow :\n\t\t\t\t\t\t\t\t\tfunction() {\n\t\t\t\t\t\t\t\t\t\ttry {\n\t\t\t\t\t\t\t\t\t\t\tmightThrow();\n\t\t\t\t\t\t\t\t\t\t} catch ( e ) {\n\n\t\t\t\t\t\t\t\t\t\t\tif ( jQuery.Deferred.exceptionHook ) {\n\t\t\t\t\t\t\t\t\t\t\t\tjQuery.Deferred.exceptionHook( e,\n\t\t\t\t\t\t\t\t\t\t\t\t\tprocess.stackTrace );\n\t\t\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\t\t\t// Support: Promises/A+ section 2.3.3.3.4.1\n\t\t\t\t\t\t\t\t\t\t\t// https://promisesaplus.com/#point-61\n\t\t\t\t\t\t\t\t\t\t\t// Ignore post-resolution exceptions\n\t\t\t\t\t\t\t\t\t\t\tif ( depth + 1 >= maxDepth ) {\n\n\t\t\t\t\t\t\t\t\t\t\t\t// Only substitute handlers pass on context\n\t\t\t\t\t\t\t\t\t\t\t\t// and multiple values (non-spec behavior)\n\t\t\t\t\t\t\t\t\t\t\t\tif ( handler !== Thrower ) {\n\t\t\t\t\t\t\t\t\t\t\t\t\tthat = undefined;\n\t\t\t\t\t\t\t\t\t\t\t\t\targs = [ e ];\n\t\t\t\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\t\t\t\tdeferred.rejectWith( that, args );\n\t\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t};\n\n\t\t\t\t\t\t\t// Support: Promises/A+ section 2.3.3.3.1\n\t\t\t\t\t\t\t// https://promisesaplus.com/#point-57\n\t\t\t\t\t\t\t// Re-resolve promises immediately to dodge false rejection from\n\t\t\t\t\t\t\t// subsequent errors\n\t\t\t\t\t\t\tif ( depth ) {\n\t\t\t\t\t\t\t\tprocess();\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t// Call an optional hook to record the stack, in case of exception\n\t\t\t\t\t\t\t\t// since it's otherwise lost when execution goes async\n\t\t\t\t\t\t\t\tif ( jQuery.Deferred.getStackHook ) {\n\t\t\t\t\t\t\t\t\tprocess.stackTrace = jQuery.Deferred.getStackHook();\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\twindow.setTimeout( process );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t};\n\t\t\t\t\t}\n\n\t\t\t\t\treturn jQuery.Deferred( function( newDefer ) {\n\n\t\t\t\t\t\t// progress_handlers.add( ... )\n\t\t\t\t\t\ttuples[ 0 ][ 3 ].add(\n\t\t\t\t\t\t\tresolve(\n\t\t\t\t\t\t\t\t0,\n\t\t\t\t\t\t\t\tnewDefer,\n\t\t\t\t\t\t\t\tjQuery.isFunction( onProgress ) ?\n\t\t\t\t\t\t\t\t\tonProgress :\n\t\t\t\t\t\t\t\t\tIdentity,\n\t\t\t\t\t\t\t\tnewDefer.notifyWith\n\t\t\t\t\t\t\t)\n\t\t\t\t\t\t);\n\n\t\t\t\t\t\t// fulfilled_handlers.add( ... )\n\t\t\t\t\t\ttuples[ 1 ][ 3 ].add(\n\t\t\t\t\t\t\tresolve(\n\t\t\t\t\t\t\t\t0,\n\t\t\t\t\t\t\t\tnewDefer,\n\t\t\t\t\t\t\t\tjQuery.isFunction( onFulfilled ) ?\n\t\t\t\t\t\t\t\t\tonFulfilled :\n\t\t\t\t\t\t\t\t\tIdentity\n\t\t\t\t\t\t\t)\n\t\t\t\t\t\t);\n\n\t\t\t\t\t\t// rejected_handlers.add( ... )\n\t\t\t\t\t\ttuples[ 2 ][ 3 ].add(\n\t\t\t\t\t\t\tresolve(\n\t\t\t\t\t\t\t\t0,\n\t\t\t\t\t\t\t\tnewDefer,\n\t\t\t\t\t\t\t\tjQuery.isFunction( onRejected ) ?\n\t\t\t\t\t\t\t\t\tonRejected :\n\t\t\t\t\t\t\t\t\tThrower\n\t\t\t\t\t\t\t)\n\t\t\t\t\t\t);\n\t\t\t\t\t} ).promise();\n\t\t\t\t},\n\n\t\t\t\t// Get a promise for this deferred\n\t\t\t\t// If obj is provided, the promise aspect is added to the object\n\t\t\t\tpromise: function( obj ) {\n\t\t\t\t\treturn obj != null ? jQuery.extend( obj, promise ) : promise;\n\t\t\t\t}\n\t\t\t},\n\t\t\tdeferred = {};\n\n\t\t// Add list-specific methods\n\t\tjQuery.each( tuples, function( i, tuple ) {\n\t\t\tvar list = tuple[ 2 ],\n\t\t\t\tstateString = tuple[ 5 ];\n\n\t\t\t// promise.progress = list.add\n\t\t\t// promise.done = list.add\n\t\t\t// promise.fail = list.add\n\t\t\tpromise[ tuple[ 1 ] ] = list.add;\n\n\t\t\t// Handle state\n\t\t\tif ( stateString ) {\n\t\t\t\tlist.add(\n\t\t\t\t\tfunction() {\n\n\t\t\t\t\t\t// state = \"resolved\" (i.e., fulfilled)\n\t\t\t\t\t\t// state = \"rejected\"\n\t\t\t\t\t\tstate = stateString;\n\t\t\t\t\t},\n\n\t\t\t\t\t// rejected_callbacks.disable\n\t\t\t\t\t// fulfilled_callbacks.disable\n\t\t\t\t\ttuples[ 3 - i ][ 2 ].disable,\n\n\t\t\t\t\t// progress_callbacks.lock\n\t\t\t\t\ttuples[ 0 ][ 2 ].lock\n\t\t\t\t);\n\t\t\t}\n\n\t\t\t// progress_handlers.fire\n\t\t\t// fulfilled_handlers.fire\n\t\t\t// rejected_handlers.fire\n\t\t\tlist.add( tuple[ 3 ].fire );\n\n\t\t\t// deferred.notify = function() { deferred.notifyWith(...) }\n\t\t\t// deferred.resolve = function() { deferred.resolveWith(...) }\n\t\t\t// deferred.reject = function() { deferred.rejectWith(...) }\n\t\t\tdeferred[ tuple[ 0 ] ] = function() {\n\t\t\t\tdeferred[ tuple[ 0 ] + \"With\" ]( this === deferred ? undefined : this, arguments );\n\t\t\t\treturn this;\n\t\t\t};\n\n\t\t\t// deferred.notifyWith = list.fireWith\n\t\t\t// deferred.resolveWith = list.fireWith\n\t\t\t// deferred.rejectWith = list.fireWith\n\t\t\tdeferred[ tuple[ 0 ] + \"With\" ] = list.fireWith;\n\t\t} );\n\n\t\t// Make the deferred a promise\n\t\tpromise.promise( deferred );\n\n\t\t// Call given func if any\n\t\tif ( func ) {\n\t\t\tfunc.call( deferred, deferred );\n\t\t}\n\n\t\t// All done!\n\t\treturn deferred;\n\t},\n\n\t// Deferred helper\n\twhen: function( singleValue ) {\n\t\tvar\n\n\t\t\t// count of uncompleted subordinates\n\t\t\tremaining = arguments.length,\n\n\t\t\t// count of unprocessed arguments\n\t\t\ti = remaining,\n\n\t\t\t// subordinate fulfillment data\n\t\t\tresolveContexts = Array( i ),\n\t\t\tresolveValues = slice.call( arguments ),\n\n\t\t\t// the master Deferred\n\t\t\tmaster = jQuery.Deferred(),\n\n\t\t\t// subordinate callback factory\n\t\t\tupdateFunc = function( i ) {\n\t\t\t\treturn function( value ) {\n\t\t\t\t\tresolveContexts[ i ] = this;\n\t\t\t\t\tresolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;\n\t\t\t\t\tif ( !( --remaining ) ) {\n\t\t\t\t\t\tmaster.resolveWith( resolveContexts, resolveValues );\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t\t};\n\n\t\t// Single- and empty arguments are adopted like Promise.resolve\n\t\tif ( remaining <= 1 ) {\n\t\t\tadoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject );\n\n\t\t\t// Use .then() to unwrap secondary thenables (cf. gh-3000)\n\t\t\tif ( master.state() === \"pending\" ||\n\t\t\t\tjQuery.isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {\n\n\t\t\t\treturn master.then();\n\t\t\t}\n\t\t}\n\n\t\t// Multiple arguments are aggregated like Promise.all array elements\n\t\twhile ( i-- ) {\n\t\t\tadoptValue( resolveValues[ i ], updateFunc( i ), master.reject );\n\t\t}\n\n\t\treturn master.promise();\n\t}\n} );\n\n\n// These usually indicate a programmer mistake during development,\n// warn about them ASAP rather than swallowing them by default.\nvar rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;\n\njQuery.Deferred.exceptionHook = function( error, stack ) {\n\n\t// Support: IE 8 - 9 only\n\t// Console exists when dev tools are open, which can happen at any time\n\tif ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {\n\t\twindow.console.warn( \"jQuery.Deferred exception: \" + error.message, error.stack, stack );\n\t}\n};\n\n\n\n\njQuery.readyException = function( error ) {\n\twindow.setTimeout( function() {\n\t\tthrow error;\n\t} );\n};\n\n\n\n\n// The deferred used on DOM ready\nvar readyList = jQuery.Deferred();\n\njQuery.fn.ready = function( fn ) {\n\n\treadyList\n\t\t.then( fn )\n\n\t\t// Wrap jQuery.readyException in a function so that the lookup\n\t\t// happens at the time of error handling instead of callback\n\t\t// registration.\n\t\t.catch( function( error ) {\n\t\t\tjQuery.readyException( error );\n\t\t} );\n\n\treturn this;\n};\n\njQuery.extend( {\n\n\t// Is the DOM ready to be used? Set to true once it occurs.\n\tisReady: false,\n\n\t// A counter to track how many items to wait for before\n\t// the ready event fires. See #6781\n\treadyWait: 1,\n\n\t// Hold (or release) the ready event\n\tholdReady: function( hold ) {\n\t\tif ( hold ) {\n\t\t\tjQuery.readyWait++;\n\t\t} else {\n\t\t\tjQuery.ready( true );\n\t\t}\n\t},\n\n\t// Handle when the DOM is ready\n\tready: function( wait ) {\n\n\t\t// Abort if there are pending holds or we're already ready\n\t\tif ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Remember that the DOM is ready\n\t\tjQuery.isReady = true;\n\n\t\t// If a normal DOM Ready event fired, decrement, and wait if need be\n\t\tif ( wait !== true && --jQuery.readyWait > 0 ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If there are functions bound, to execute\n\t\treadyList.resolveWith( document, [ jQuery ] );\n\t}\n} );\n\njQuery.ready.then = readyList.then;\n\n// The ready event handler and self cleanup method\nfunction completed() {\n\tdocument.removeEventListener( \"DOMContentLoaded\", completed );\n\twindow.removeEventListener( \"load\", completed );\n\tjQuery.ready();\n}\n\n// Catch cases where $(document).ready() is called\n// after the browser event has already occurred.\n// Support: IE <=9 - 10 only\n// Older IE sometimes signals \"interactive\" too soon\nif ( document.readyState === \"complete\" ||\n\t( document.readyState !== \"loading\" && !document.documentElement.doScroll ) ) {\n\n\t// Handle it asynchronously to allow scripts the opportunity to delay ready\n\twindow.setTimeout( jQuery.ready );\n\n} else {\n\n\t// Use the handy event callback\n\tdocument.addEventListener( \"DOMContentLoaded\", completed );\n\n\t// A fallback to window.onload, that will always work\n\twindow.addEventListener( \"load\", completed );\n}\n\n\n\n\n// Multifunctional method to get and set values of a collection\n// The value/s can optionally be executed if it's a function\nvar access = function( elems, fn, key, value, chainable, emptyGet, raw ) {\n\tvar i = 0,\n\t\tlen = elems.length,\n\t\tbulk = key == null;\n\n\t// Sets many values\n\tif ( jQuery.type( key ) === \"object\" ) {\n\t\tchainable = true;\n\t\tfor ( i in key ) {\n\t\t\taccess( elems, fn, i, key[ i ], true, emptyGet, raw );\n\t\t}\n\n\t// Sets one value\n\t} else if ( value !== undefined ) {\n\t\tchainable = true;\n\n\t\tif ( !jQuery.isFunction( value ) ) {\n\t\t\traw = true;\n\t\t}\n\n\t\tif ( bulk ) {\n\n\t\t\t// Bulk operations run against the entire set\n\t\t\tif ( raw ) {\n\t\t\t\tfn.call( elems, value );\n\t\t\t\tfn = null;\n\n\t\t\t// ...except when executing function values\n\t\t\t} else {\n\t\t\t\tbulk = fn;\n\t\t\t\tfn = function( elem, key, value ) {\n\t\t\t\t\treturn bulk.call( jQuery( elem ), value );\n\t\t\t\t};\n\t\t\t}\n\t\t}\n\n\t\tif ( fn ) {\n\t\t\tfor ( ; i < len; i++ ) {\n\t\t\t\tfn(\n\t\t\t\t\telems[ i ], key, raw ?\n\t\t\t\t\tvalue :\n\t\t\t\t\tvalue.call( elems[ i ], i, fn( elems[ i ], key ) )\n\t\t\t\t);\n\t\t\t}\n\t\t}\n\t}\n\n\tif ( chainable ) {\n\t\treturn elems;\n\t}\n\n\t// Gets\n\tif ( bulk ) {\n\t\treturn fn.call( elems );\n\t}\n\n\treturn len ? fn( elems[ 0 ], key ) : emptyGet;\n};\nvar acceptData = function( owner ) {\n\n\t// Accepts only:\n\t//  - Node\n\t//    - Node.ELEMENT_NODE\n\t//    - Node.DOCUMENT_NODE\n\t//  - Object\n\t//    - Any\n\treturn owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );\n};\n\n\n\n\nfunction Data() {\n\tthis.expando = jQuery.expando + Data.uid++;\n}\n\nData.uid = 1;\n\nData.prototype = {\n\n\tcache: function( owner ) {\n\n\t\t// Check if the owner object already has a cache\n\t\tvar value = owner[ this.expando ];\n\n\t\t// If not, create one\n\t\tif ( !value ) {\n\t\t\tvalue = {};\n\n\t\t\t// We can accept data for non-element nodes in modern browsers,\n\t\t\t// but we should not, see #8335.\n\t\t\t// Always return an empty object.\n\t\t\tif ( acceptData( owner ) ) {\n\n\t\t\t\t// If it is a node unlikely to be stringify-ed or looped over\n\t\t\t\t// use plain assignment\n\t\t\t\tif ( owner.nodeType ) {\n\t\t\t\t\towner[ this.expando ] = value;\n\n\t\t\t\t// Otherwise secure it in a non-enumerable property\n\t\t\t\t// configurable must be true to allow the property to be\n\t\t\t\t// deleted when data is removed\n\t\t\t\t} else {\n\t\t\t\t\tObject.defineProperty( owner, this.expando, {\n\t\t\t\t\t\tvalue: value,\n\t\t\t\t\t\tconfigurable: true\n\t\t\t\t\t} );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn value;\n\t},\n\tset: function( owner, data, value ) {\n\t\tvar prop,\n\t\t\tcache = this.cache( owner );\n\n\t\t// Handle: [ owner, key, value ] args\n\t\t// Always use camelCase key (gh-2257)\n\t\tif ( typeof data === \"string\" ) {\n\t\t\tcache[ jQuery.camelCase( data ) ] = value;\n\n\t\t// Handle: [ owner, { properties } ] args\n\t\t} else {\n\n\t\t\t// Copy the properties one-by-one to the cache object\n\t\t\tfor ( prop in data ) {\n\t\t\t\tcache[ jQuery.camelCase( prop ) ] = data[ prop ];\n\t\t\t}\n\t\t}\n\t\treturn cache;\n\t},\n\tget: function( owner, key ) {\n\t\treturn key === undefined ?\n\t\t\tthis.cache( owner ) :\n\n\t\t\t// Always use camelCase key (gh-2257)\n\t\t\towner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ];\n\t},\n\taccess: function( owner, key, value ) {\n\n\t\t// In cases where either:\n\t\t//\n\t\t//   1. No key was specified\n\t\t//   2. A string key was specified, but no value provided\n\t\t//\n\t\t// Take the \"read\" path and allow the get method to determine\n\t\t// which value to return, respectively either:\n\t\t//\n\t\t//   1. The entire cache object\n\t\t//   2. The data stored at the key\n\t\t//\n\t\tif ( key === undefined ||\n\t\t\t\t( ( key && typeof key === \"string\" ) && value === undefined ) ) {\n\n\t\t\treturn this.get( owner, key );\n\t\t}\n\n\t\t// When the key is not a string, or both a key and value\n\t\t// are specified, set or extend (existing objects) with either:\n\t\t//\n\t\t//   1. An object of properties\n\t\t//   2. A key and value\n\t\t//\n\t\tthis.set( owner, key, value );\n\n\t\t// Since the \"set\" path can have two possible entry points\n\t\t// return the expected data based on which path was taken[*]\n\t\treturn value !== undefined ? value : key;\n\t},\n\tremove: function( owner, key ) {\n\t\tvar i,\n\t\t\tcache = owner[ this.expando ];\n\n\t\tif ( cache === undefined ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( key !== undefined ) {\n\n\t\t\t// Support array or space separated string of keys\n\t\t\tif ( jQuery.isArray( key ) ) {\n\n\t\t\t\t// If key is an array of keys...\n\t\t\t\t// We always set camelCase keys, so remove that.\n\t\t\t\tkey = key.map( jQuery.camelCase );\n\t\t\t} else {\n\t\t\t\tkey = jQuery.camelCase( key );\n\n\t\t\t\t// If a key with the spaces exists, use it.\n\t\t\t\t// Otherwise, create an array by matching non-whitespace\n\t\t\t\tkey = key in cache ?\n\t\t\t\t\t[ key ] :\n\t\t\t\t\t( key.match( rnothtmlwhite ) || [] );\n\t\t\t}\n\n\t\t\ti = key.length;\n\n\t\t\twhile ( i-- ) {\n\t\t\t\tdelete cache[ key[ i ] ];\n\t\t\t}\n\t\t}\n\n\t\t// Remove the expando if there's no more data\n\t\tif ( key === undefined || jQuery.isEmptyObject( cache ) ) {\n\n\t\t\t// Support: Chrome <=35 - 45\n\t\t\t// Webkit & Blink performance suffers when deleting properties\n\t\t\t// from DOM nodes, so set to undefined instead\n\t\t\t// https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)\n\t\t\tif ( owner.nodeType ) {\n\t\t\t\towner[ this.expando ] = undefined;\n\t\t\t} else {\n\t\t\t\tdelete owner[ this.expando ];\n\t\t\t}\n\t\t}\n\t},\n\thasData: function( owner ) {\n\t\tvar cache = owner[ this.expando ];\n\t\treturn cache !== undefined && !jQuery.isEmptyObject( cache );\n\t}\n};\nvar dataPriv = new Data();\n\nvar dataUser = new Data();\n\n\n\n//\tImplementation Summary\n//\n//\t1. Enforce API surface and semantic compatibility with 1.9.x branch\n//\t2. Improve the module's maintainability by reducing the storage\n//\t\tpaths to a single mechanism.\n//\t3. Use the same single mechanism to support \"private\" and \"user\" data.\n//\t4. _Never_ expose \"private\" data to user code (TODO: Drop _data, _removeData)\n//\t5. Avoid exposing implementation details on user objects (eg. expando properties)\n//\t6. Provide a clear path for implementation upgrade to WeakMap in 2014\n\nvar rbrace = /^(?:\\{[\\w\\W]*\\}|\\[[\\w\\W]*\\])$/,\n\trmultiDash = /[A-Z]/g;\n\nfunction getData( data ) {\n\tif ( data === \"true\" ) {\n\t\treturn true;\n\t}\n\n\tif ( data === \"false\" ) {\n\t\treturn false;\n\t}\n\n\tif ( data === \"null\" ) {\n\t\treturn null;\n\t}\n\n\t// Only convert to a number if it doesn't change the string\n\tif ( data === +data + \"\" ) {\n\t\treturn +data;\n\t}\n\n\tif ( rbrace.test( data ) ) {\n\t\treturn JSON.parse( data );\n\t}\n\n\treturn data;\n}\n\nfunction dataAttr( elem, key, data ) {\n\tvar name;\n\n\t// If nothing was found internally, try to fetch any\n\t// data from the HTML5 data-* attribute\n\tif ( data === undefined && elem.nodeType === 1 ) {\n\t\tname = \"data-\" + key.replace( rmultiDash, \"-$&\" ).toLowerCase();\n\t\tdata = elem.getAttribute( name );\n\n\t\tif ( typeof data === \"string\" ) {\n\t\t\ttry {\n\t\t\t\tdata = getData( data );\n\t\t\t} catch ( e ) {}\n\n\t\t\t// Make sure we set the data so it isn't changed later\n\t\t\tdataUser.set( elem, key, data );\n\t\t} else {\n\t\t\tdata = undefined;\n\t\t}\n\t}\n\treturn data;\n}\n\njQuery.extend( {\n\thasData: function( elem ) {\n\t\treturn dataUser.hasData( elem ) || dataPriv.hasData( elem );\n\t},\n\n\tdata: function( elem, name, data ) {\n\t\treturn dataUser.access( elem, name, data );\n\t},\n\n\tremoveData: function( elem, name ) {\n\t\tdataUser.remove( elem, name );\n\t},\n\n\t// TODO: Now that all calls to _data and _removeData have been replaced\n\t// with direct calls to dataPriv methods, these can be deprecated.\n\t_data: function( elem, name, data ) {\n\t\treturn dataPriv.access( elem, name, data );\n\t},\n\n\t_removeData: function( elem, name ) {\n\t\tdataPriv.remove( elem, name );\n\t}\n} );\n\njQuery.fn.extend( {\n\tdata: function( key, value ) {\n\t\tvar i, name, data,\n\t\t\telem = this[ 0 ],\n\t\t\tattrs = elem && elem.attributes;\n\n\t\t// Gets all values\n\t\tif ( key === undefined ) {\n\t\t\tif ( this.length ) {\n\t\t\t\tdata = dataUser.get( elem );\n\n\t\t\t\tif ( elem.nodeType === 1 && !dataPriv.get( elem, \"hasDataAttrs\" ) ) {\n\t\t\t\t\ti = attrs.length;\n\t\t\t\t\twhile ( i-- ) {\n\n\t\t\t\t\t\t// Support: IE 11 only\n\t\t\t\t\t\t// The attrs elements can be null (#14894)\n\t\t\t\t\t\tif ( attrs[ i ] ) {\n\t\t\t\t\t\t\tname = attrs[ i ].name;\n\t\t\t\t\t\t\tif ( name.indexOf( \"data-\" ) === 0 ) {\n\t\t\t\t\t\t\t\tname = jQuery.camelCase( name.slice( 5 ) );\n\t\t\t\t\t\t\t\tdataAttr( elem, name, data[ name ] );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tdataPriv.set( elem, \"hasDataAttrs\", true );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn data;\n\t\t}\n\n\t\t// Sets multiple values\n\t\tif ( typeof key === \"object\" ) {\n\t\t\treturn this.each( function() {\n\t\t\t\tdataUser.set( this, key );\n\t\t\t} );\n\t\t}\n\n\t\treturn access( this, function( value ) {\n\t\t\tvar data;\n\n\t\t\t// The calling jQuery object (element matches) is not empty\n\t\t\t// (and therefore has an element appears at this[ 0 ]) and the\n\t\t\t// `value` parameter was not undefined. An empty jQuery object\n\t\t\t// will result in `undefined` for elem = this[ 0 ] which will\n\t\t\t// throw an exception if an attempt to read a data cache is made.\n\t\t\tif ( elem && value === undefined ) {\n\n\t\t\t\t// Attempt to get data from the cache\n\t\t\t\t// The key will always be camelCased in Data\n\t\t\t\tdata = dataUser.get( elem, key );\n\t\t\t\tif ( data !== undefined ) {\n\t\t\t\t\treturn data;\n\t\t\t\t}\n\n\t\t\t\t// Attempt to \"discover\" the data in\n\t\t\t\t// HTML5 custom data-* attrs\n\t\t\t\tdata = dataAttr( elem, key );\n\t\t\t\tif ( data !== undefined ) {\n\t\t\t\t\treturn data;\n\t\t\t\t}\n\n\t\t\t\t// We tried really hard, but the data doesn't exist.\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Set the data...\n\t\t\tthis.each( function() {\n\n\t\t\t\t// We always store the camelCased key\n\t\t\t\tdataUser.set( this, key, value );\n\t\t\t} );\n\t\t}, null, value, arguments.length > 1, null, true );\n\t},\n\n\tremoveData: function( key ) {\n\t\treturn this.each( function() {\n\t\t\tdataUser.remove( this, key );\n\t\t} );\n\t}\n} );\n\n\njQuery.extend( {\n\tqueue: function( elem, type, data ) {\n\t\tvar queue;\n\n\t\tif ( elem ) {\n\t\t\ttype = ( type || \"fx\" ) + \"queue\";\n\t\t\tqueue = dataPriv.get( elem, type );\n\n\t\t\t// Speed up dequeue by getting out quickly if this is just a lookup\n\t\t\tif ( data ) {\n\t\t\t\tif ( !queue || jQuery.isArray( data ) ) {\n\t\t\t\t\tqueue = dataPriv.access( elem, type, jQuery.makeArray( data ) );\n\t\t\t\t} else {\n\t\t\t\t\tqueue.push( data );\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn queue || [];\n\t\t}\n\t},\n\n\tdequeue: function( elem, type ) {\n\t\ttype = type || \"fx\";\n\n\t\tvar queue = jQuery.queue( elem, type ),\n\t\t\tstartLength = queue.length,\n\t\t\tfn = queue.shift(),\n\t\t\thooks = jQuery._queueHooks( elem, type ),\n\t\t\tnext = function() {\n\t\t\t\tjQuery.dequeue( elem, type );\n\t\t\t};\n\n\t\t// If the fx queue is dequeued, always remove the progress sentinel\n\t\tif ( fn === \"inprogress\" ) {\n\t\t\tfn = queue.shift();\n\t\t\tstartLength--;\n\t\t}\n\n\t\tif ( fn ) {\n\n\t\t\t// Add a progress sentinel to prevent the fx queue from being\n\t\t\t// automatically dequeued\n\t\t\tif ( type === \"fx\" ) {\n\t\t\t\tqueue.unshift( \"inprogress\" );\n\t\t\t}\n\n\t\t\t// Clear up the last queue stop function\n\t\t\tdelete hooks.stop;\n\t\t\tfn.call( elem, next, hooks );\n\t\t}\n\n\t\tif ( !startLength && hooks ) {\n\t\t\thooks.empty.fire();\n\t\t}\n\t},\n\n\t// Not public - generate a queueHooks object, or return the current one\n\t_queueHooks: function( elem, type ) {\n\t\tvar key = type + \"queueHooks\";\n\t\treturn dataPriv.get( elem, key ) || dataPriv.access( elem, key, {\n\t\t\tempty: jQuery.Callbacks( \"once memory\" ).add( function() {\n\t\t\t\tdataPriv.remove( elem, [ type + \"queue\", key ] );\n\t\t\t} )\n\t\t} );\n\t}\n} );\n\njQuery.fn.extend( {\n\tqueue: function( type, data ) {\n\t\tvar setter = 2;\n\n\t\tif ( typeof type !== \"string\" ) {\n\t\t\tdata = type;\n\t\t\ttype = \"fx\";\n\t\t\tsetter--;\n\t\t}\n\n\t\tif ( arguments.length < setter ) {\n\t\t\treturn jQuery.queue( this[ 0 ], type );\n\t\t}\n\n\t\treturn data === undefined ?\n\t\t\tthis :\n\t\t\tthis.each( function() {\n\t\t\t\tvar queue = jQuery.queue( this, type, data );\n\n\t\t\t\t// Ensure a hooks for this queue\n\t\t\t\tjQuery._queueHooks( this, type );\n\n\t\t\t\tif ( type === \"fx\" && queue[ 0 ] !== \"inprogress\" ) {\n\t\t\t\t\tjQuery.dequeue( this, type );\n\t\t\t\t}\n\t\t\t} );\n\t},\n\tdequeue: function( type ) {\n\t\treturn this.each( function() {\n\t\t\tjQuery.dequeue( this, type );\n\t\t} );\n\t},\n\tclearQueue: function( type ) {\n\t\treturn this.queue( type || \"fx\", [] );\n\t},\n\n\t// Get a promise resolved when queues of a certain type\n\t// are emptied (fx is the type by default)\n\tpromise: function( type, obj ) {\n\t\tvar tmp,\n\t\t\tcount = 1,\n\t\t\tdefer = jQuery.Deferred(),\n\t\t\telements = this,\n\t\t\ti = this.length,\n\t\t\tresolve = function() {\n\t\t\t\tif ( !( --count ) ) {\n\t\t\t\t\tdefer.resolveWith( elements, [ elements ] );\n\t\t\t\t}\n\t\t\t};\n\n\t\tif ( typeof type !== \"string\" ) {\n\t\t\tobj = type;\n\t\t\ttype = undefined;\n\t\t}\n\t\ttype = type || \"fx\";\n\n\t\twhile ( i-- ) {\n\t\t\ttmp = dataPriv.get( elements[ i ], type + \"queueHooks\" );\n\t\t\tif ( tmp && tmp.empty ) {\n\t\t\t\tcount++;\n\t\t\t\ttmp.empty.add( resolve );\n\t\t\t}\n\t\t}\n\t\tresolve();\n\t\treturn defer.promise( obj );\n\t}\n} );\nvar pnum = ( /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/ ).source;\n\nvar rcssNum = new RegExp( \"^(?:([+-])=|)(\" + pnum + \")([a-z%]*)$\", \"i\" );\n\n\nvar cssExpand = [ \"Top\", \"Right\", \"Bottom\", \"Left\" ];\n\nvar isHiddenWithinTree = function( elem, el ) {\n\n\t\t// isHiddenWithinTree might be called from jQuery#filter function;\n\t\t// in that case, element will be second argument\n\t\telem = el || elem;\n\n\t\t// Inline style trumps all\n\t\treturn elem.style.display === \"none\" ||\n\t\t\telem.style.display === \"\" &&\n\n\t\t\t// Otherwise, check computed style\n\t\t\t// Support: Firefox <=43 - 45\n\t\t\t// Disconnected elements can have computed display: none, so first confirm that elem is\n\t\t\t// in the document.\n\t\t\tjQuery.contains( elem.ownerDocument, elem ) &&\n\n\t\t\tjQuery.css( elem, \"display\" ) === \"none\";\n\t};\n\nvar swap = function( elem, options, callback, args ) {\n\tvar ret, name,\n\t\told = {};\n\n\t// Remember the old values, and insert the new ones\n\tfor ( name in options ) {\n\t\told[ name ] = elem.style[ name ];\n\t\telem.style[ name ] = options[ name ];\n\t}\n\n\tret = callback.apply( elem, args || [] );\n\n\t// Revert the old values\n\tfor ( name in options ) {\n\t\telem.style[ name ] = old[ name ];\n\t}\n\n\treturn ret;\n};\n\n\n\n\nfunction adjustCSS( elem, prop, valueParts, tween ) {\n\tvar adjusted,\n\t\tscale = 1,\n\t\tmaxIterations = 20,\n\t\tcurrentValue = tween ?\n\t\t\tfunction() {\n\t\t\t\treturn tween.cur();\n\t\t\t} :\n\t\t\tfunction() {\n\t\t\t\treturn jQuery.css( elem, prop, \"\" );\n\t\t\t},\n\t\tinitial = currentValue(),\n\t\tunit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? \"\" : \"px\" ),\n\n\t\t// Starting value computation is required for potential unit mismatches\n\t\tinitialInUnit = ( jQuery.cssNumber[ prop ] || unit !== \"px\" && +initial ) &&\n\t\t\trcssNum.exec( jQuery.css( elem, prop ) );\n\n\tif ( initialInUnit && initialInUnit[ 3 ] !== unit ) {\n\n\t\t// Trust units reported by jQuery.css\n\t\tunit = unit || initialInUnit[ 3 ];\n\n\t\t// Make sure we update the tween properties later on\n\t\tvalueParts = valueParts || [];\n\n\t\t// Iteratively approximate from a nonzero starting point\n\t\tinitialInUnit = +initial || 1;\n\n\t\tdo {\n\n\t\t\t// If previous iteration zeroed out, double until we get *something*.\n\t\t\t// Use string for doubling so we don't accidentally see scale as unchanged below\n\t\t\tscale = scale || \".5\";\n\n\t\t\t// Adjust and apply\n\t\t\tinitialInUnit = initialInUnit / scale;\n\t\t\tjQuery.style( elem, prop, initialInUnit + unit );\n\n\t\t// Update scale, tolerating zero or NaN from tween.cur()\n\t\t// Break the loop if scale is unchanged or perfect, or if we've just had enough.\n\t\t} while (\n\t\t\tscale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations\n\t\t);\n\t}\n\n\tif ( valueParts ) {\n\t\tinitialInUnit = +initialInUnit || +initial || 0;\n\n\t\t// Apply relative offset (+=/-=) if specified\n\t\tadjusted = valueParts[ 1 ] ?\n\t\t\tinitialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :\n\t\t\t+valueParts[ 2 ];\n\t\tif ( tween ) {\n\t\t\ttween.unit = unit;\n\t\t\ttween.start = initialInUnit;\n\t\t\ttween.end = adjusted;\n\t\t}\n\t}\n\treturn adjusted;\n}\n\n\nvar defaultDisplayMap = {};\n\nfunction getDefaultDisplay( elem ) {\n\tvar temp,\n\t\tdoc = elem.ownerDocument,\n\t\tnodeName = elem.nodeName,\n\t\tdisplay = defaultDisplayMap[ nodeName ];\n\n\tif ( display ) {\n\t\treturn display;\n\t}\n\n\ttemp = doc.body.appendChild( doc.createElement( nodeName ) );\n\tdisplay = jQuery.css( temp, \"display\" );\n\n\ttemp.parentNode.removeChild( temp );\n\n\tif ( display === \"none\" ) {\n\t\tdisplay = \"block\";\n\t}\n\tdefaultDisplayMap[ nodeName ] = display;\n\n\treturn display;\n}\n\nfunction showHide( elements, show ) {\n\tvar display, elem,\n\t\tvalues = [],\n\t\tindex = 0,\n\t\tlength = elements.length;\n\n\t// Determine new display value for elements that need to change\n\tfor ( ; index < length; index++ ) {\n\t\telem = elements[ index ];\n\t\tif ( !elem.style ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tdisplay = elem.style.display;\n\t\tif ( show ) {\n\n\t\t\t// Since we force visibility upon cascade-hidden elements, an immediate (and slow)\n\t\t\t// check is required in this first loop unless we have a nonempty display value (either\n\t\t\t// inline or about-to-be-restored)\n\t\t\tif ( display === \"none\" ) {\n\t\t\t\tvalues[ index ] = dataPriv.get( elem, \"display\" ) || null;\n\t\t\t\tif ( !values[ index ] ) {\n\t\t\t\t\telem.style.display = \"\";\n\t\t\t\t}\n\t\t\t}\n\t\t\tif ( elem.style.display === \"\" && isHiddenWithinTree( elem ) ) {\n\t\t\t\tvalues[ index ] = getDefaultDisplay( elem );\n\t\t\t}\n\t\t} else {\n\t\t\tif ( display !== \"none\" ) {\n\t\t\t\tvalues[ index ] = \"none\";\n\n\t\t\t\t// Remember what we're overwriting\n\t\t\t\tdataPriv.set( elem, \"display\", display );\n\t\t\t}\n\t\t}\n\t}\n\n\t// Set the display of the elements in a second loop to avoid constant reflow\n\tfor ( index = 0; index < length; index++ ) {\n\t\tif ( values[ index ] != null ) {\n\t\t\telements[ index ].style.display = values[ index ];\n\t\t}\n\t}\n\n\treturn elements;\n}\n\njQuery.fn.extend( {\n\tshow: function() {\n\t\treturn showHide( this, true );\n\t},\n\thide: function() {\n\t\treturn showHide( this );\n\t},\n\ttoggle: function( state ) {\n\t\tif ( typeof state === \"boolean\" ) {\n\t\t\treturn state ? this.show() : this.hide();\n\t\t}\n\n\t\treturn this.each( function() {\n\t\t\tif ( isHiddenWithinTree( this ) ) {\n\t\t\t\tjQuery( this ).show();\n\t\t\t} else {\n\t\t\t\tjQuery( this ).hide();\n\t\t\t}\n\t\t} );\n\t}\n} );\nvar rcheckableType = ( /^(?:checkbox|radio)$/i );\n\nvar rtagName = ( /<([a-z][^\\/\\0>\\x20\\t\\r\\n\\f]+)/i );\n\nvar rscriptType = ( /^$|\\/(?:java|ecma)script/i );\n\n\n\n// We have to close these tags to support XHTML (#13200)\nvar wrapMap = {\n\n\t// Support: IE <=9 only\n\toption: [ 1, \"<select multiple='multiple'>\", \"</select>\" ],\n\n\t// XHTML parsers do not magically insert elements in the\n\t// same way that tag soup parsers do. So we cannot shorten\n\t// this by omitting <tbody> or other required elements.\n\tthead: [ 1, \"<table>\", \"</table>\" ],\n\tcol: [ 2, \"<table><colgroup>\", \"</colgroup></table>\" ],\n\ttr: [ 2, \"<table><tbody>\", \"</tbody></table>\" ],\n\ttd: [ 3, \"<table><tbody><tr>\", \"</tr></tbody></table>\" ],\n\n\t_default: [ 0, \"\", \"\" ]\n};\n\n// Support: IE <=9 only\nwrapMap.optgroup = wrapMap.option;\n\nwrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;\nwrapMap.th = wrapMap.td;\n\n\nfunction getAll( context, tag ) {\n\n\t// Support: IE <=9 - 11 only\n\t// Use typeof to avoid zero-argument method invocation on host objects (#15151)\n\tvar ret;\n\n\tif ( typeof context.getElementsByTagName !== \"undefined\" ) {\n\t\tret = context.getElementsByTagName( tag || \"*\" );\n\n\t} else if ( typeof context.querySelectorAll !== \"undefined\" ) {\n\t\tret = context.querySelectorAll( tag || \"*\" );\n\n\t} else {\n\t\tret = [];\n\t}\n\n\tif ( tag === undefined || tag && jQuery.nodeName( context, tag ) ) {\n\t\treturn jQuery.merge( [ context ], ret );\n\t}\n\n\treturn ret;\n}\n\n\n// Mark scripts as having already been evaluated\nfunction setGlobalEval( elems, refElements ) {\n\tvar i = 0,\n\t\tl = elems.length;\n\n\tfor ( ; i < l; i++ ) {\n\t\tdataPriv.set(\n\t\t\telems[ i ],\n\t\t\t\"globalEval\",\n\t\t\t!refElements || dataPriv.get( refElements[ i ], \"globalEval\" )\n\t\t);\n\t}\n}\n\n\nvar rhtml = /<|&#?\\w+;/;\n\nfunction buildFragment( elems, context, scripts, selection, ignored ) {\n\tvar elem, tmp, tag, wrap, contains, j,\n\t\tfragment = context.createDocumentFragment(),\n\t\tnodes = [],\n\t\ti = 0,\n\t\tl = elems.length;\n\n\tfor ( ; i < l; i++ ) {\n\t\telem = elems[ i ];\n\n\t\tif ( elem || elem === 0 ) {\n\n\t\t\t// Add nodes directly\n\t\t\tif ( jQuery.type( elem ) === \"object\" ) {\n\n\t\t\t\t// Support: Android <=4.0 only, PhantomJS 1 only\n\t\t\t\t// push.apply(_, arraylike) throws on ancient WebKit\n\t\t\t\tjQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );\n\n\t\t\t// Convert non-html into a text node\n\t\t\t} else if ( !rhtml.test( elem ) ) {\n\t\t\t\tnodes.push( context.createTextNode( elem ) );\n\n\t\t\t// Convert html into DOM nodes\n\t\t\t} else {\n\t\t\t\ttmp = tmp || fragment.appendChild( context.createElement( \"div\" ) );\n\n\t\t\t\t// Deserialize a standard representation\n\t\t\t\ttag = ( rtagName.exec( elem ) || [ \"\", \"\" ] )[ 1 ].toLowerCase();\n\t\t\t\twrap = wrapMap[ tag ] || wrapMap._default;\n\t\t\t\ttmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];\n\n\t\t\t\t// Descend through wrappers to the right content\n\t\t\t\tj = wrap[ 0 ];\n\t\t\t\twhile ( j-- ) {\n\t\t\t\t\ttmp = tmp.lastChild;\n\t\t\t\t}\n\n\t\t\t\t// Support: Android <=4.0 only, PhantomJS 1 only\n\t\t\t\t// push.apply(_, arraylike) throws on ancient WebKit\n\t\t\t\tjQuery.merge( nodes, tmp.childNodes );\n\n\t\t\t\t// Remember the top-level container\n\t\t\t\ttmp = fragment.firstChild;\n\n\t\t\t\t// Ensure the created nodes are orphaned (#12392)\n\t\t\t\ttmp.textContent = \"\";\n\t\t\t}\n\t\t}\n\t}\n\n\t// Remove wrapper from fragment\n\tfragment.textContent = \"\";\n\n\ti = 0;\n\twhile ( ( elem = nodes[ i++ ] ) ) {\n\n\t\t// Skip elements already in the context collection (trac-4087)\n\t\tif ( selection && jQuery.inArray( elem, selection ) > -1 ) {\n\t\t\tif ( ignored ) {\n\t\t\t\tignored.push( elem );\n\t\t\t}\n\t\t\tcontinue;\n\t\t}\n\n\t\tcontains = jQuery.contains( elem.ownerDocument, elem );\n\n\t\t// Append to fragment\n\t\ttmp = getAll( fragment.appendChild( elem ), \"script\" );\n\n\t\t// Preserve script evaluation history\n\t\tif ( contains ) {\n\t\t\tsetGlobalEval( tmp );\n\t\t}\n\n\t\t// Capture executables\n\t\tif ( scripts ) {\n\t\t\tj = 0;\n\t\t\twhile ( ( elem = tmp[ j++ ] ) ) {\n\t\t\t\tif ( rscriptType.test( elem.type || \"\" ) ) {\n\t\t\t\t\tscripts.push( elem );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn fragment;\n}\n\n\n( function() {\n\tvar fragment = document.createDocumentFragment(),\n\t\tdiv = fragment.appendChild( document.createElement( \"div\" ) ),\n\t\tinput = document.createElement( \"input\" );\n\n\t// Support: Android 4.0 - 4.3 only\n\t// Check state lost if the name is set (#11217)\n\t// Support: Windows Web Apps (WWA)\n\t// `name` and `type` must use .setAttribute for WWA (#14901)\n\tinput.setAttribute( \"type\", \"radio\" );\n\tinput.setAttribute( \"checked\", \"checked\" );\n\tinput.setAttribute( \"name\", \"t\" );\n\n\tdiv.appendChild( input );\n\n\t// Support: Android <=4.1 only\n\t// Older WebKit doesn't clone checked state correctly in fragments\n\tsupport.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;\n\n\t// Support: IE <=11 only\n\t// Make sure textarea (and checkbox) defaultValue is properly cloned\n\tdiv.innerHTML = \"<textarea>x</textarea>\";\n\tsupport.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;\n} )();\nvar documentElement = document.documentElement;\n\n\n\nvar\n\trkeyEvent = /^key/,\n\trmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,\n\trtypenamespace = /^([^.]*)(?:\\.(.+)|)/;\n\nfunction returnTrue() {\n\treturn true;\n}\n\nfunction returnFalse() {\n\treturn false;\n}\n\n// Support: IE <=9 only\n// See #13393 for more info\nfunction safeActiveElement() {\n\ttry {\n\t\treturn document.activeElement;\n\t} catch ( err ) { }\n}\n\nfunction on( elem, types, selector, data, fn, one ) {\n\tvar origFn, type;\n\n\t// Types can be a map of types/handlers\n\tif ( typeof types === \"object\" ) {\n\n\t\t// ( types-Object, selector, data )\n\t\tif ( typeof selector !== \"string\" ) {\n\n\t\t\t// ( types-Object, data )\n\t\t\tdata = data || selector;\n\t\t\tselector = undefined;\n\t\t}\n\t\tfor ( type in types ) {\n\t\t\ton( elem, type, selector, data, types[ type ], one );\n\t\t}\n\t\treturn elem;\n\t}\n\n\tif ( data == null && fn == null ) {\n\n\t\t// ( types, fn )\n\t\tfn = selector;\n\t\tdata = selector = undefined;\n\t} else if ( fn == null ) {\n\t\tif ( typeof selector === \"string\" ) {\n\n\t\t\t// ( types, selector, fn )\n\t\t\tfn = data;\n\t\t\tdata = undefined;\n\t\t} else {\n\n\t\t\t// ( types, data, fn )\n\t\t\tfn = data;\n\t\t\tdata = selector;\n\t\t\tselector = undefined;\n\t\t}\n\t}\n\tif ( fn === false ) {\n\t\tfn = returnFalse;\n\t} else if ( !fn ) {\n\t\treturn elem;\n\t}\n\n\tif ( one === 1 ) {\n\t\torigFn = fn;\n\t\tfn = function( event ) {\n\n\t\t\t// Can use an empty set, since event contains the info\n\t\t\tjQuery().off( event );\n\t\t\treturn origFn.apply( this, arguments );\n\t\t};\n\n\t\t// Use same guid so caller can remove using origFn\n\t\tfn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );\n\t}\n\treturn elem.each( function() {\n\t\tjQuery.event.add( this, types, fn, data, selector );\n\t} );\n}\n\n/*\n * Helper functions for managing events -- not part of the public interface.\n * Props to Dean Edwards' addEvent library for many of the ideas.\n */\njQuery.event = {\n\n\tglobal: {},\n\n\tadd: function( elem, types, handler, data, selector ) {\n\n\t\tvar handleObjIn, eventHandle, tmp,\n\t\t\tevents, t, handleObj,\n\t\t\tspecial, handlers, type, namespaces, origType,\n\t\t\telemData = dataPriv.get( elem );\n\n\t\t// Don't attach events to noData or text/comment nodes (but allow plain objects)\n\t\tif ( !elemData ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Caller can pass in an object of custom data in lieu of the handler\n\t\tif ( handler.handler ) {\n\t\t\thandleObjIn = handler;\n\t\t\thandler = handleObjIn.handler;\n\t\t\tselector = handleObjIn.selector;\n\t\t}\n\n\t\t// Ensure that invalid selectors throw exceptions at attach time\n\t\t// Evaluate against documentElement in case elem is a non-element node (e.g., document)\n\t\tif ( selector ) {\n\t\t\tjQuery.find.matchesSelector( documentElement, selector );\n\t\t}\n\n\t\t// Make sure that the handler has a unique ID, used to find/remove it later\n\t\tif ( !handler.guid ) {\n\t\t\thandler.guid = jQuery.guid++;\n\t\t}\n\n\t\t// Init the element's event structure and main handler, if this is the first\n\t\tif ( !( events = elemData.events ) ) {\n\t\t\tevents = elemData.events = {};\n\t\t}\n\t\tif ( !( eventHandle = elemData.handle ) ) {\n\t\t\teventHandle = elemData.handle = function( e ) {\n\n\t\t\t\t// Discard the second event of a jQuery.event.trigger() and\n\t\t\t\t// when an event is called after a page has unloaded\n\t\t\t\treturn typeof jQuery !== \"undefined\" && jQuery.event.triggered !== e.type ?\n\t\t\t\t\tjQuery.event.dispatch.apply( elem, arguments ) : undefined;\n\t\t\t};\n\t\t}\n\n\t\t// Handle multiple events separated by a space\n\t\ttypes = ( types || \"\" ).match( rnothtmlwhite ) || [ \"\" ];\n\t\tt = types.length;\n\t\twhile ( t-- ) {\n\t\t\ttmp = rtypenamespace.exec( types[ t ] ) || [];\n\t\t\ttype = origType = tmp[ 1 ];\n\t\t\tnamespaces = ( tmp[ 2 ] || \"\" ).split( \".\" ).sort();\n\n\t\t\t// There *must* be a type, no attaching namespace-only handlers\n\t\t\tif ( !type ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// If event changes its type, use the special event handlers for the changed type\n\t\t\tspecial = jQuery.event.special[ type ] || {};\n\n\t\t\t// If selector defined, determine special event api type, otherwise given type\n\t\t\ttype = ( selector ? special.delegateType : special.bindType ) || type;\n\n\t\t\t// Update special based on newly reset type\n\t\t\tspecial = jQuery.event.special[ type ] || {};\n\n\t\t\t// handleObj is passed to all event handlers\n\t\t\thandleObj = jQuery.extend( {\n\t\t\t\ttype: type,\n\t\t\t\torigType: origType,\n\t\t\t\tdata: data,\n\t\t\t\thandler: handler,\n\t\t\t\tguid: handler.guid,\n\t\t\t\tselector: selector,\n\t\t\t\tneedsContext: selector && jQuery.expr.match.needsContext.test( selector ),\n\t\t\t\tnamespace: namespaces.join( \".\" )\n\t\t\t}, handleObjIn );\n\n\t\t\t// Init the event handler queue if we're the first\n\t\t\tif ( !( handlers = events[ type ] ) ) {\n\t\t\t\thandlers = events[ type ] = [];\n\t\t\t\thandlers.delegateCount = 0;\n\n\t\t\t\t// Only use addEventListener if the special events handler returns false\n\t\t\t\tif ( !special.setup ||\n\t\t\t\t\tspecial.setup.call( elem, data, namespaces, eventHandle ) === false ) {\n\n\t\t\t\t\tif ( elem.addEventListener ) {\n\t\t\t\t\t\telem.addEventListener( type, eventHandle );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( special.add ) {\n\t\t\t\tspecial.add.call( elem, handleObj );\n\n\t\t\t\tif ( !handleObj.handler.guid ) {\n\t\t\t\t\thandleObj.handler.guid = handler.guid;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Add to the element's handler list, delegates in front\n\t\t\tif ( selector ) {\n\t\t\t\thandlers.splice( handlers.delegateCount++, 0, handleObj );\n\t\t\t} else {\n\t\t\t\thandlers.push( handleObj );\n\t\t\t}\n\n\t\t\t// Keep track of which events have ever been used, for event optimization\n\t\t\tjQuery.event.global[ type ] = true;\n\t\t}\n\n\t},\n\n\t// Detach an event or set of events from an element\n\tremove: function( elem, types, handler, selector, mappedTypes ) {\n\n\t\tvar j, origCount, tmp,\n\t\t\tevents, t, handleObj,\n\t\t\tspecial, handlers, type, namespaces, origType,\n\t\t\telemData = dataPriv.hasData( elem ) && dataPriv.get( elem );\n\n\t\tif ( !elemData || !( events = elemData.events ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Once for each type.namespace in types; type may be omitted\n\t\ttypes = ( types || \"\" ).match( rnothtmlwhite ) || [ \"\" ];\n\t\tt = types.length;\n\t\twhile ( t-- ) {\n\t\t\ttmp = rtypenamespace.exec( types[ t ] ) || [];\n\t\t\ttype = origType = tmp[ 1 ];\n\t\t\tnamespaces = ( tmp[ 2 ] || \"\" ).split( \".\" ).sort();\n\n\t\t\t// Unbind all events (on this namespace, if provided) for the element\n\t\t\tif ( !type ) {\n\t\t\t\tfor ( type in events ) {\n\t\t\t\t\tjQuery.event.remove( elem, type + types[ t ], handler, selector, true );\n\t\t\t\t}\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tspecial = jQuery.event.special[ type ] || {};\n\t\t\ttype = ( selector ? special.delegateType : special.bindType ) || type;\n\t\t\thandlers = events[ type ] || [];\n\t\t\ttmp = tmp[ 2 ] &&\n\t\t\t\tnew RegExp( \"(^|\\\\.)\" + namespaces.join( \"\\\\.(?:.*\\\\.|)\" ) + \"(\\\\.|$)\" );\n\n\t\t\t// Remove matching events\n\t\t\torigCount = j = handlers.length;\n\t\t\twhile ( j-- ) {\n\t\t\t\thandleObj = handlers[ j ];\n\n\t\t\t\tif ( ( mappedTypes || origType === handleObj.origType ) &&\n\t\t\t\t\t( !handler || handler.guid === handleObj.guid ) &&\n\t\t\t\t\t( !tmp || tmp.test( handleObj.namespace ) ) &&\n\t\t\t\t\t( !selector || selector === handleObj.selector ||\n\t\t\t\t\t\tselector === \"**\" && handleObj.selector ) ) {\n\t\t\t\t\thandlers.splice( j, 1 );\n\n\t\t\t\t\tif ( handleObj.selector ) {\n\t\t\t\t\t\thandlers.delegateCount--;\n\t\t\t\t\t}\n\t\t\t\t\tif ( special.remove ) {\n\t\t\t\t\t\tspecial.remove.call( elem, handleObj );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Remove generic event handler if we removed something and no more handlers exist\n\t\t\t// (avoids potential for endless recursion during removal of special event handlers)\n\t\t\tif ( origCount && !handlers.length ) {\n\t\t\t\tif ( !special.teardown ||\n\t\t\t\t\tspecial.teardown.call( elem, namespaces, elemData.handle ) === false ) {\n\n\t\t\t\t\tjQuery.removeEvent( elem, type, elemData.handle );\n\t\t\t\t}\n\n\t\t\t\tdelete events[ type ];\n\t\t\t}\n\t\t}\n\n\t\t// Remove data and the expando if it's no longer used\n\t\tif ( jQuery.isEmptyObject( events ) ) {\n\t\t\tdataPriv.remove( elem, \"handle events\" );\n\t\t}\n\t},\n\n\tdispatch: function( nativeEvent ) {\n\n\t\t// Make a writable jQuery.Event from the native event object\n\t\tvar event = jQuery.event.fix( nativeEvent );\n\n\t\tvar i, j, ret, matched, handleObj, handlerQueue,\n\t\t\targs = new Array( arguments.length ),\n\t\t\thandlers = ( dataPriv.get( this, \"events\" ) || {} )[ event.type ] || [],\n\t\t\tspecial = jQuery.event.special[ event.type ] || {};\n\n\t\t// Use the fix-ed jQuery.Event rather than the (read-only) native event\n\t\targs[ 0 ] = event;\n\n\t\tfor ( i = 1; i < arguments.length; i++ ) {\n\t\t\targs[ i ] = arguments[ i ];\n\t\t}\n\n\t\tevent.delegateTarget = this;\n\n\t\t// Call the preDispatch hook for the mapped type, and let it bail if desired\n\t\tif ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Determine handlers\n\t\thandlerQueue = jQuery.event.handlers.call( this, event, handlers );\n\n\t\t// Run delegates first; they may want to stop propagation beneath us\n\t\ti = 0;\n\t\twhile ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {\n\t\t\tevent.currentTarget = matched.elem;\n\n\t\t\tj = 0;\n\t\t\twhile ( ( handleObj = matched.handlers[ j++ ] ) &&\n\t\t\t\t!event.isImmediatePropagationStopped() ) {\n\n\t\t\t\t// Triggered event must either 1) have no namespace, or 2) have namespace(s)\n\t\t\t\t// a subset or equal to those in the bound event (both can have no namespace).\n\t\t\t\tif ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {\n\n\t\t\t\t\tevent.handleObj = handleObj;\n\t\t\t\t\tevent.data = handleObj.data;\n\n\t\t\t\t\tret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||\n\t\t\t\t\t\thandleObj.handler ).apply( matched.elem, args );\n\n\t\t\t\t\tif ( ret !== undefined ) {\n\t\t\t\t\t\tif ( ( event.result = ret ) === false ) {\n\t\t\t\t\t\t\tevent.preventDefault();\n\t\t\t\t\t\t\tevent.stopPropagation();\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Call the postDispatch hook for the mapped type\n\t\tif ( special.postDispatch ) {\n\t\t\tspecial.postDispatch.call( this, event );\n\t\t}\n\n\t\treturn event.result;\n\t},\n\n\thandlers: function( event, handlers ) {\n\t\tvar i, handleObj, sel, matchedHandlers, matchedSelectors,\n\t\t\thandlerQueue = [],\n\t\t\tdelegateCount = handlers.delegateCount,\n\t\t\tcur = event.target;\n\n\t\t// Find delegate handlers\n\t\tif ( delegateCount &&\n\n\t\t\t// Support: IE <=9\n\t\t\t// Black-hole SVG <use> instance trees (trac-13180)\n\t\t\tcur.nodeType &&\n\n\t\t\t// Support: Firefox <=42\n\t\t\t// Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)\n\t\t\t// https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click\n\t\t\t// Support: IE 11 only\n\t\t\t// ...but not arrow key \"clicks\" of radio inputs, which can have `button` -1 (gh-2343)\n\t\t\t!( event.type === \"click\" && event.button >= 1 ) ) {\n\n\t\t\tfor ( ; cur !== this; cur = cur.parentNode || this ) {\n\n\t\t\t\t// Don't check non-elements (#13208)\n\t\t\t\t// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)\n\t\t\t\tif ( cur.nodeType === 1 && !( event.type === \"click\" && cur.disabled === true ) ) {\n\t\t\t\t\tmatchedHandlers = [];\n\t\t\t\t\tmatchedSelectors = {};\n\t\t\t\t\tfor ( i = 0; i < delegateCount; i++ ) {\n\t\t\t\t\t\thandleObj = handlers[ i ];\n\n\t\t\t\t\t\t// Don't conflict with Object.prototype properties (#13203)\n\t\t\t\t\t\tsel = handleObj.selector + \" \";\n\n\t\t\t\t\t\tif ( matchedSelectors[ sel ] === undefined ) {\n\t\t\t\t\t\t\tmatchedSelectors[ sel ] = handleObj.needsContext ?\n\t\t\t\t\t\t\t\tjQuery( sel, this ).index( cur ) > -1 :\n\t\t\t\t\t\t\t\tjQuery.find( sel, this, null, [ cur ] ).length;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( matchedSelectors[ sel ] ) {\n\t\t\t\t\t\t\tmatchedHandlers.push( handleObj );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tif ( matchedHandlers.length ) {\n\t\t\t\t\t\thandlerQueue.push( { elem: cur, handlers: matchedHandlers } );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Add the remaining (directly-bound) handlers\n\t\tcur = this;\n\t\tif ( delegateCount < handlers.length ) {\n\t\t\thandlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );\n\t\t}\n\n\t\treturn handlerQueue;\n\t},\n\n\taddProp: function( name, hook ) {\n\t\tObject.defineProperty( jQuery.Event.prototype, name, {\n\t\t\tenumerable: true,\n\t\t\tconfigurable: true,\n\n\t\t\tget: jQuery.isFunction( hook ) ?\n\t\t\t\tfunction() {\n\t\t\t\t\tif ( this.originalEvent ) {\n\t\t\t\t\t\t\treturn hook( this.originalEvent );\n\t\t\t\t\t}\n\t\t\t\t} :\n\t\t\t\tfunction() {\n\t\t\t\t\tif ( this.originalEvent ) {\n\t\t\t\t\t\t\treturn this.originalEvent[ name ];\n\t\t\t\t\t}\n\t\t\t\t},\n\n\t\t\tset: function( value ) {\n\t\t\t\tObject.defineProperty( this, name, {\n\t\t\t\t\tenumerable: true,\n\t\t\t\t\tconfigurable: true,\n\t\t\t\t\twritable: true,\n\t\t\t\t\tvalue: value\n\t\t\t\t} );\n\t\t\t}\n\t\t} );\n\t},\n\n\tfix: function( originalEvent ) {\n\t\treturn originalEvent[ jQuery.expando ] ?\n\t\t\toriginalEvent :\n\t\t\tnew jQuery.Event( originalEvent );\n\t},\n\n\tspecial: {\n\t\tload: {\n\n\t\t\t// Prevent triggered image.load events from bubbling to window.load\n\t\t\tnoBubble: true\n\t\t},\n\t\tfocus: {\n\n\t\t\t// Fire native event if possible so blur/focus sequence is correct\n\t\t\ttrigger: function() {\n\t\t\t\tif ( this !== safeActiveElement() && this.focus ) {\n\t\t\t\t\tthis.focus();\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t},\n\t\t\tdelegateType: \"focusin\"\n\t\t},\n\t\tblur: {\n\t\t\ttrigger: function() {\n\t\t\t\tif ( this === safeActiveElement() && this.blur ) {\n\t\t\t\t\tthis.blur();\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t},\n\t\t\tdelegateType: \"focusout\"\n\t\t},\n\t\tclick: {\n\n\t\t\t// For checkbox, fire native event so checked state will be right\n\t\t\ttrigger: function() {\n\t\t\t\tif ( this.type === \"checkbox\" && this.click && jQuery.nodeName( this, \"input\" ) ) {\n\t\t\t\t\tthis.click();\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t},\n\n\t\t\t// For cross-browser consistency, don't fire native .click() on links\n\t\t\t_default: function( event ) {\n\t\t\t\treturn jQuery.nodeName( event.target, \"a\" );\n\t\t\t}\n\t\t},\n\n\t\tbeforeunload: {\n\t\t\tpostDispatch: function( event ) {\n\n\t\t\t\t// Support: Firefox 20+\n\t\t\t\t// Firefox doesn't alert if the returnValue field is not set.\n\t\t\t\tif ( event.result !== undefined && event.originalEvent ) {\n\t\t\t\t\tevent.originalEvent.returnValue = event.result;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n};\n\njQuery.removeEvent = function( elem, type, handle ) {\n\n\t// This \"if\" is needed for plain objects\n\tif ( elem.removeEventListener ) {\n\t\telem.removeEventListener( type, handle );\n\t}\n};\n\njQuery.Event = function( src, props ) {\n\n\t// Allow instantiation without the 'new' keyword\n\tif ( !( this instanceof jQuery.Event ) ) {\n\t\treturn new jQuery.Event( src, props );\n\t}\n\n\t// Event object\n\tif ( src && src.type ) {\n\t\tthis.originalEvent = src;\n\t\tthis.type = src.type;\n\n\t\t// Events bubbling up the document may have been marked as prevented\n\t\t// by a handler lower down the tree; reflect the correct value.\n\t\tthis.isDefaultPrevented = src.defaultPrevented ||\n\t\t\t\tsrc.defaultPrevented === undefined &&\n\n\t\t\t\t// Support: Android <=2.3 only\n\t\t\t\tsrc.returnValue === false ?\n\t\t\treturnTrue :\n\t\t\treturnFalse;\n\n\t\t// Create target properties\n\t\t// Support: Safari <=6 - 7 only\n\t\t// Target should not be a text node (#504, #13143)\n\t\tthis.target = ( src.target && src.target.nodeType === 3 ) ?\n\t\t\tsrc.target.parentNode :\n\t\t\tsrc.target;\n\n\t\tthis.currentTarget = src.currentTarget;\n\t\tthis.relatedTarget = src.relatedTarget;\n\n\t// Event type\n\t} else {\n\t\tthis.type = src;\n\t}\n\n\t// Put explicitly provided properties onto the event object\n\tif ( props ) {\n\t\tjQuery.extend( this, props );\n\t}\n\n\t// Create a timestamp if incoming event doesn't have one\n\tthis.timeStamp = src && src.timeStamp || jQuery.now();\n\n\t// Mark it as fixed\n\tthis[ jQuery.expando ] = true;\n};\n\n// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding\n// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html\njQuery.Event.prototype = {\n\tconstructor: jQuery.Event,\n\tisDefaultPrevented: returnFalse,\n\tisPropagationStopped: returnFalse,\n\tisImmediatePropagationStopped: returnFalse,\n\tisSimulated: false,\n\n\tpreventDefault: function() {\n\t\tvar e = this.originalEvent;\n\n\t\tthis.isDefaultPrevented = returnTrue;\n\n\t\tif ( e && !this.isSimulated ) {\n\t\t\te.preventDefault();\n\t\t}\n\t},\n\tstopPropagation: function() {\n\t\tvar e = this.originalEvent;\n\n\t\tthis.isPropagationStopped = returnTrue;\n\n\t\tif ( e && !this.isSimulated ) {\n\t\t\te.stopPropagation();\n\t\t}\n\t},\n\tstopImmediatePropagation: function() {\n\t\tvar e = this.originalEvent;\n\n\t\tthis.isImmediatePropagationStopped = returnTrue;\n\n\t\tif ( e && !this.isSimulated ) {\n\t\t\te.stopImmediatePropagation();\n\t\t}\n\n\t\tthis.stopPropagation();\n\t}\n};\n\n// Includes all common event props including KeyEvent and MouseEvent specific props\njQuery.each( {\n\taltKey: true,\n\tbubbles: true,\n\tcancelable: true,\n\tchangedTouches: true,\n\tctrlKey: true,\n\tdetail: true,\n\teventPhase: true,\n\tmetaKey: true,\n\tpageX: true,\n\tpageY: true,\n\tshiftKey: true,\n\tview: true,\n\t\"char\": true,\n\tcharCode: true,\n\tkey: true,\n\tkeyCode: true,\n\tbutton: true,\n\tbuttons: true,\n\tclientX: true,\n\tclientY: true,\n\toffsetX: true,\n\toffsetY: true,\n\tpointerId: true,\n\tpointerType: true,\n\tscreenX: true,\n\tscreenY: true,\n\ttargetTouches: true,\n\ttoElement: true,\n\ttouches: true,\n\n\twhich: function( event ) {\n\t\tvar button = event.button;\n\n\t\t// Add which for key events\n\t\tif ( event.which == null && rkeyEvent.test( event.type ) ) {\n\t\t\treturn event.charCode != null ? event.charCode : event.keyCode;\n\t\t}\n\n\t\t// Add which for click: 1 === left; 2 === middle; 3 === right\n\t\tif ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) {\n\t\t\tif ( button & 1 ) {\n\t\t\t\treturn 1;\n\t\t\t}\n\n\t\t\tif ( button & 2 ) {\n\t\t\t\treturn 3;\n\t\t\t}\n\n\t\t\tif ( button & 4 ) {\n\t\t\t\treturn 2;\n\t\t\t}\n\n\t\t\treturn 0;\n\t\t}\n\n\t\treturn event.which;\n\t}\n}, jQuery.event.addProp );\n\n// Create mouseenter/leave events using mouseover/out and event-time checks\n// so that event delegation works in jQuery.\n// Do the same for pointerenter/pointerleave and pointerover/pointerout\n//\n// Support: Safari 7 only\n// Safari sends mouseenter too often; see:\n// https://bugs.chromium.org/p/chromium/issues/detail?id=470258\n// for the description of the bug (it existed in older Chrome versions as well).\njQuery.each( {\n\tmouseenter: \"mouseover\",\n\tmouseleave: \"mouseout\",\n\tpointerenter: \"pointerover\",\n\tpointerleave: \"pointerout\"\n}, function( orig, fix ) {\n\tjQuery.event.special[ orig ] = {\n\t\tdelegateType: fix,\n\t\tbindType: fix,\n\n\t\thandle: function( event ) {\n\t\t\tvar ret,\n\t\t\t\ttarget = this,\n\t\t\t\trelated = event.relatedTarget,\n\t\t\t\thandleObj = event.handleObj;\n\n\t\t\t// For mouseenter/leave call the handler if related is outside the target.\n\t\t\t// NB: No relatedTarget if the mouse left/entered the browser window\n\t\t\tif ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {\n\t\t\t\tevent.type = handleObj.origType;\n\t\t\t\tret = handleObj.handler.apply( this, arguments );\n\t\t\t\tevent.type = fix;\n\t\t\t}\n\t\t\treturn ret;\n\t\t}\n\t};\n} );\n\njQuery.fn.extend( {\n\n\ton: function( types, selector, data, fn ) {\n\t\treturn on( this, types, selector, data, fn );\n\t},\n\tone: function( types, selector, data, fn ) {\n\t\treturn on( this, types, selector, data, fn, 1 );\n\t},\n\toff: function( types, selector, fn ) {\n\t\tvar handleObj, type;\n\t\tif ( types && types.preventDefault && types.handleObj ) {\n\n\t\t\t// ( event )  dispatched jQuery.Event\n\t\t\thandleObj = types.handleObj;\n\t\t\tjQuery( types.delegateTarget ).off(\n\t\t\t\thandleObj.namespace ?\n\t\t\t\t\thandleObj.origType + \".\" + handleObj.namespace :\n\t\t\t\t\thandleObj.origType,\n\t\t\t\thandleObj.selector,\n\t\t\t\thandleObj.handler\n\t\t\t);\n\t\t\treturn this;\n\t\t}\n\t\tif ( typeof types === \"object\" ) {\n\n\t\t\t// ( types-object [, selector] )\n\t\t\tfor ( type in types ) {\n\t\t\t\tthis.off( type, selector, types[ type ] );\n\t\t\t}\n\t\t\treturn this;\n\t\t}\n\t\tif ( selector === false || typeof selector === \"function\" ) {\n\n\t\t\t// ( types [, fn] )\n\t\t\tfn = selector;\n\t\t\tselector = undefined;\n\t\t}\n\t\tif ( fn === false ) {\n\t\t\tfn = returnFalse;\n\t\t}\n\t\treturn this.each( function() {\n\t\t\tjQuery.event.remove( this, types, fn, selector );\n\t\t} );\n\t}\n} );\n\n\nvar\n\n\t/* eslint-disable max-len */\n\n\t// See https://github.com/eslint/eslint/issues/3229\n\trxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\\/\\0>\\x20\\t\\r\\n\\f]*)[^>]*)\\/>/gi,\n\n\t/* eslint-enable */\n\n\t// Support: IE <=10 - 11, Edge 12 - 13\n\t// In IE/Edge using regex groups here causes severe slowdowns.\n\t// See https://connect.microsoft.com/IE/feedback/details/1736512/\n\trnoInnerhtml = /<script|<style|<link/i,\n\n\t// checked=\"checked\" or checked\n\trchecked = /checked\\s*(?:[^=]|=\\s*.checked.)/i,\n\trscriptTypeMasked = /^true\\/(.*)/,\n\trcleanScript = /^\\s*<!(?:\\[CDATA\\[|--)|(?:\\]\\]|--)>\\s*$/g;\n\nfunction manipulationTarget( elem, content ) {\n\tif ( jQuery.nodeName( elem, \"table\" ) &&\n\t\tjQuery.nodeName( content.nodeType !== 11 ? content : content.firstChild, \"tr\" ) ) {\n\n\t\treturn elem.getElementsByTagName( \"tbody\" )[ 0 ] || elem;\n\t}\n\n\treturn elem;\n}\n\n// Replace/restore the type attribute of script elements for safe DOM manipulation\nfunction disableScript( elem ) {\n\telem.type = ( elem.getAttribute( \"type\" ) !== null ) + \"/\" + elem.type;\n\treturn elem;\n}\nfunction restoreScript( elem ) {\n\tvar match = rscriptTypeMasked.exec( elem.type );\n\n\tif ( match ) {\n\t\telem.type = match[ 1 ];\n\t} else {\n\t\telem.removeAttribute( \"type\" );\n\t}\n\n\treturn elem;\n}\n\nfunction cloneCopyEvent( src, dest ) {\n\tvar i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;\n\n\tif ( dest.nodeType !== 1 ) {\n\t\treturn;\n\t}\n\n\t// 1. Copy private data: events, handlers, etc.\n\tif ( dataPriv.hasData( src ) ) {\n\t\tpdataOld = dataPriv.access( src );\n\t\tpdataCur = dataPriv.set( dest, pdataOld );\n\t\tevents = pdataOld.events;\n\n\t\tif ( events ) {\n\t\t\tdelete pdataCur.handle;\n\t\t\tpdataCur.events = {};\n\n\t\t\tfor ( type in events ) {\n\t\t\t\tfor ( i = 0, l = events[ type ].length; i < l; i++ ) {\n\t\t\t\t\tjQuery.event.add( dest, type, events[ type ][ i ] );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// 2. Copy user data\n\tif ( dataUser.hasData( src ) ) {\n\t\tudataOld = dataUser.access( src );\n\t\tudataCur = jQuery.extend( {}, udataOld );\n\n\t\tdataUser.set( dest, udataCur );\n\t}\n}\n\n// Fix IE bugs, see support tests\nfunction fixInput( src, dest ) {\n\tvar nodeName = dest.nodeName.toLowerCase();\n\n\t// Fails to persist the checked state of a cloned checkbox or radio button.\n\tif ( nodeName === \"input\" && rcheckableType.test( src.type ) ) {\n\t\tdest.checked = src.checked;\n\n\t// Fails to return the selected option to the default selected state when cloning options\n\t} else if ( nodeName === \"input\" || nodeName === \"textarea\" ) {\n\t\tdest.defaultValue = src.defaultValue;\n\t}\n}\n\nfunction domManip( collection, args, callback, ignored ) {\n\n\t// Flatten any nested arrays\n\targs = concat.apply( [], args );\n\n\tvar fragment, first, scripts, hasScripts, node, doc,\n\t\ti = 0,\n\t\tl = collection.length,\n\t\tiNoClone = l - 1,\n\t\tvalue = args[ 0 ],\n\t\tisFunction = jQuery.isFunction( value );\n\n\t// We can't cloneNode fragments that contain checked, in WebKit\n\tif ( isFunction ||\n\t\t\t( l > 1 && typeof value === \"string\" &&\n\t\t\t\t!support.checkClone && rchecked.test( value ) ) ) {\n\t\treturn collection.each( function( index ) {\n\t\t\tvar self = collection.eq( index );\n\t\t\tif ( isFunction ) {\n\t\t\t\targs[ 0 ] = value.call( this, index, self.html() );\n\t\t\t}\n\t\t\tdomManip( self, args, callback, ignored );\n\t\t} );\n\t}\n\n\tif ( l ) {\n\t\tfragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );\n\t\tfirst = fragment.firstChild;\n\n\t\tif ( fragment.childNodes.length === 1 ) {\n\t\t\tfragment = first;\n\t\t}\n\n\t\t// Require either new content or an interest in ignored elements to invoke the callback\n\t\tif ( first || ignored ) {\n\t\t\tscripts = jQuery.map( getAll( fragment, \"script\" ), disableScript );\n\t\t\thasScripts = scripts.length;\n\n\t\t\t// Use the original fragment for the last item\n\t\t\t// instead of the first because it can end up\n\t\t\t// being emptied incorrectly in certain situations (#8070).\n\t\t\tfor ( ; i < l; i++ ) {\n\t\t\t\tnode = fragment;\n\n\t\t\t\tif ( i !== iNoClone ) {\n\t\t\t\t\tnode = jQuery.clone( node, true, true );\n\n\t\t\t\t\t// Keep references to cloned scripts for later restoration\n\t\t\t\t\tif ( hasScripts ) {\n\n\t\t\t\t\t\t// Support: Android <=4.0 only, PhantomJS 1 only\n\t\t\t\t\t\t// push.apply(_, arraylike) throws on ancient WebKit\n\t\t\t\t\t\tjQuery.merge( scripts, getAll( node, \"script\" ) );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tcallback.call( collection[ i ], node, i );\n\t\t\t}\n\n\t\t\tif ( hasScripts ) {\n\t\t\t\tdoc = scripts[ scripts.length - 1 ].ownerDocument;\n\n\t\t\t\t// Reenable scripts\n\t\t\t\tjQuery.map( scripts, restoreScript );\n\n\t\t\t\t// Evaluate executable scripts on first document insertion\n\t\t\t\tfor ( i = 0; i < hasScripts; i++ ) {\n\t\t\t\t\tnode = scripts[ i ];\n\t\t\t\t\tif ( rscriptType.test( node.type || \"\" ) &&\n\t\t\t\t\t\t!dataPriv.access( node, \"globalEval\" ) &&\n\t\t\t\t\t\tjQuery.contains( doc, node ) ) {\n\n\t\t\t\t\t\tif ( node.src ) {\n\n\t\t\t\t\t\t\t// Optional AJAX dependency, but won't run scripts if not present\n\t\t\t\t\t\t\tif ( jQuery._evalUrl ) {\n\t\t\t\t\t\t\t\tjQuery._evalUrl( node.src );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tDOMEval( node.textContent.replace( rcleanScript, \"\" ), doc );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn collection;\n}\n\nfunction remove( elem, selector, keepData ) {\n\tvar node,\n\t\tnodes = selector ? jQuery.filter( selector, elem ) : elem,\n\t\ti = 0;\n\n\tfor ( ; ( node = nodes[ i ] ) != null; i++ ) {\n\t\tif ( !keepData && node.nodeType === 1 ) {\n\t\t\tjQuery.cleanData( getAll( node ) );\n\t\t}\n\n\t\tif ( node.parentNode ) {\n\t\t\tif ( keepData && jQuery.contains( node.ownerDocument, node ) ) {\n\t\t\t\tsetGlobalEval( getAll( node, \"script\" ) );\n\t\t\t}\n\t\t\tnode.parentNode.removeChild( node );\n\t\t}\n\t}\n\n\treturn elem;\n}\n\njQuery.extend( {\n\thtmlPrefilter: function( html ) {\n\t\treturn html.replace( rxhtmlTag, \"<$1></$2>\" );\n\t},\n\n\tclone: function( elem, dataAndEvents, deepDataAndEvents ) {\n\t\tvar i, l, srcElements, destElements,\n\t\t\tclone = elem.cloneNode( true ),\n\t\t\tinPage = jQuery.contains( elem.ownerDocument, elem );\n\n\t\t// Fix IE cloning issues\n\t\tif ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&\n\t\t\t\t!jQuery.isXMLDoc( elem ) ) {\n\n\t\t\t// We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2\n\t\t\tdestElements = getAll( clone );\n\t\t\tsrcElements = getAll( elem );\n\n\t\t\tfor ( i = 0, l = srcElements.length; i < l; i++ ) {\n\t\t\t\tfixInput( srcElements[ i ], destElements[ i ] );\n\t\t\t}\n\t\t}\n\n\t\t// Copy the events from the original to the clone\n\t\tif ( dataAndEvents ) {\n\t\t\tif ( deepDataAndEvents ) {\n\t\t\t\tsrcElements = srcElements || getAll( elem );\n\t\t\t\tdestElements = destElements || getAll( clone );\n\n\t\t\t\tfor ( i = 0, l = srcElements.length; i < l; i++ ) {\n\t\t\t\t\tcloneCopyEvent( srcElements[ i ], destElements[ i ] );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tcloneCopyEvent( elem, clone );\n\t\t\t}\n\t\t}\n\n\t\t// Preserve script evaluation history\n\t\tdestElements = getAll( clone, \"script\" );\n\t\tif ( destElements.length > 0 ) {\n\t\t\tsetGlobalEval( destElements, !inPage && getAll( elem, \"script\" ) );\n\t\t}\n\n\t\t// Return the cloned set\n\t\treturn clone;\n\t},\n\n\tcleanData: function( elems ) {\n\t\tvar data, elem, type,\n\t\t\tspecial = jQuery.event.special,\n\t\t\ti = 0;\n\n\t\tfor ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {\n\t\t\tif ( acceptData( elem ) ) {\n\t\t\t\tif ( ( data = elem[ dataPriv.expando ] ) ) {\n\t\t\t\t\tif ( data.events ) {\n\t\t\t\t\t\tfor ( type in data.events ) {\n\t\t\t\t\t\t\tif ( special[ type ] ) {\n\t\t\t\t\t\t\t\tjQuery.event.remove( elem, type );\n\n\t\t\t\t\t\t\t// This is a shortcut to avoid jQuery.event.remove's overhead\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\tjQuery.removeEvent( elem, type, data.handle );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Support: Chrome <=35 - 45+\n\t\t\t\t\t// Assign undefined instead of using delete, see Data#remove\n\t\t\t\t\telem[ dataPriv.expando ] = undefined;\n\t\t\t\t}\n\t\t\t\tif ( elem[ dataUser.expando ] ) {\n\n\t\t\t\t\t// Support: Chrome <=35 - 45+\n\t\t\t\t\t// Assign undefined instead of using delete, see Data#remove\n\t\t\t\t\telem[ dataUser.expando ] = undefined;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n} );\n\njQuery.fn.extend( {\n\tdetach: function( selector ) {\n\t\treturn remove( this, selector, true );\n\t},\n\n\tremove: function( selector ) {\n\t\treturn remove( this, selector );\n\t},\n\n\ttext: function( value ) {\n\t\treturn access( this, function( value ) {\n\t\t\treturn value === undefined ?\n\t\t\t\tjQuery.text( this ) :\n\t\t\t\tthis.empty().each( function() {\n\t\t\t\t\tif ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {\n\t\t\t\t\t\tthis.textContent = value;\n\t\t\t\t\t}\n\t\t\t\t} );\n\t\t}, null, value, arguments.length );\n\t},\n\n\tappend: function() {\n\t\treturn domManip( this, arguments, function( elem ) {\n\t\t\tif ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {\n\t\t\t\tvar target = manipulationTarget( this, elem );\n\t\t\t\ttarget.appendChild( elem );\n\t\t\t}\n\t\t} );\n\t},\n\n\tprepend: function() {\n\t\treturn domManip( this, arguments, function( elem ) {\n\t\t\tif ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {\n\t\t\t\tvar target = manipulationTarget( this, elem );\n\t\t\t\ttarget.insertBefore( elem, target.firstChild );\n\t\t\t}\n\t\t} );\n\t},\n\n\tbefore: function() {\n\t\treturn domManip( this, arguments, function( elem ) {\n\t\t\tif ( this.parentNode ) {\n\t\t\t\tthis.parentNode.insertBefore( elem, this );\n\t\t\t}\n\t\t} );\n\t},\n\n\tafter: function() {\n\t\treturn domManip( this, arguments, function( elem ) {\n\t\t\tif ( this.parentNode ) {\n\t\t\t\tthis.parentNode.insertBefore( elem, this.nextSibling );\n\t\t\t}\n\t\t} );\n\t},\n\n\tempty: function() {\n\t\tvar elem,\n\t\t\ti = 0;\n\n\t\tfor ( ; ( elem = this[ i ] ) != null; i++ ) {\n\t\t\tif ( elem.nodeType === 1 ) {\n\n\t\t\t\t// Prevent memory leaks\n\t\t\t\tjQuery.cleanData( getAll( elem, false ) );\n\n\t\t\t\t// Remove any remaining nodes\n\t\t\t\telem.textContent = \"\";\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t},\n\n\tclone: function( dataAndEvents, deepDataAndEvents ) {\n\t\tdataAndEvents = dataAndEvents == null ? false : dataAndEvents;\n\t\tdeepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;\n\n\t\treturn this.map( function() {\n\t\t\treturn jQuery.clone( this, dataAndEvents, deepDataAndEvents );\n\t\t} );\n\t},\n\n\thtml: function( value ) {\n\t\treturn access( this, function( value ) {\n\t\t\tvar elem = this[ 0 ] || {},\n\t\t\t\ti = 0,\n\t\t\t\tl = this.length;\n\n\t\t\tif ( value === undefined && elem.nodeType === 1 ) {\n\t\t\t\treturn elem.innerHTML;\n\t\t\t}\n\n\t\t\t// See if we can take a shortcut and just use innerHTML\n\t\t\tif ( typeof value === \"string\" && !rnoInnerhtml.test( value ) &&\n\t\t\t\t!wrapMap[ ( rtagName.exec( value ) || [ \"\", \"\" ] )[ 1 ].toLowerCase() ] ) {\n\n\t\t\t\tvalue = jQuery.htmlPrefilter( value );\n\n\t\t\t\ttry {\n\t\t\t\t\tfor ( ; i < l; i++ ) {\n\t\t\t\t\t\telem = this[ i ] || {};\n\n\t\t\t\t\t\t// Remove element nodes and prevent memory leaks\n\t\t\t\t\t\tif ( elem.nodeType === 1 ) {\n\t\t\t\t\t\t\tjQuery.cleanData( getAll( elem, false ) );\n\t\t\t\t\t\t\telem.innerHTML = value;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\telem = 0;\n\n\t\t\t\t// If using innerHTML throws an exception, use the fallback method\n\t\t\t\t} catch ( e ) {}\n\t\t\t}\n\n\t\t\tif ( elem ) {\n\t\t\t\tthis.empty().append( value );\n\t\t\t}\n\t\t}, null, value, arguments.length );\n\t},\n\n\treplaceWith: function() {\n\t\tvar ignored = [];\n\n\t\t// Make the changes, replacing each non-ignored context element with the new content\n\t\treturn domManip( this, arguments, function( elem ) {\n\t\t\tvar parent = this.parentNode;\n\n\t\t\tif ( jQuery.inArray( this, ignored ) < 0 ) {\n\t\t\t\tjQuery.cleanData( getAll( this ) );\n\t\t\t\tif ( parent ) {\n\t\t\t\t\tparent.replaceChild( elem, this );\n\t\t\t\t}\n\t\t\t}\n\n\t\t// Force callback invocation\n\t\t}, ignored );\n\t}\n} );\n\njQuery.each( {\n\tappendTo: \"append\",\n\tprependTo: \"prepend\",\n\tinsertBefore: \"before\",\n\tinsertAfter: \"after\",\n\treplaceAll: \"replaceWith\"\n}, function( name, original ) {\n\tjQuery.fn[ name ] = function( selector ) {\n\t\tvar elems,\n\t\t\tret = [],\n\t\t\tinsert = jQuery( selector ),\n\t\t\tlast = insert.length - 1,\n\t\t\ti = 0;\n\n\t\tfor ( ; i <= last; i++ ) {\n\t\t\telems = i === last ? this : this.clone( true );\n\t\t\tjQuery( insert[ i ] )[ original ]( elems );\n\n\t\t\t// Support: Android <=4.0 only, PhantomJS 1 only\n\t\t\t// .get() because push.apply(_, arraylike) throws on ancient WebKit\n\t\t\tpush.apply( ret, elems.get() );\n\t\t}\n\n\t\treturn this.pushStack( ret );\n\t};\n} );\nvar rmargin = ( /^margin/ );\n\nvar rnumnonpx = new RegExp( \"^(\" + pnum + \")(?!px)[a-z%]+$\", \"i\" );\n\nvar getStyles = function( elem ) {\n\n\t\t// Support: IE <=11 only, Firefox <=30 (#15098, #14150)\n\t\t// IE throws on elements created in popups\n\t\t// FF meanwhile throws on frame elements through \"defaultView.getComputedStyle\"\n\t\tvar view = elem.ownerDocument.defaultView;\n\n\t\tif ( !view || !view.opener ) {\n\t\t\tview = window;\n\t\t}\n\n\t\treturn view.getComputedStyle( elem );\n\t};\n\n\n\n( function() {\n\n\t// Executing both pixelPosition & boxSizingReliable tests require only one layout\n\t// so they're executed at the same time to save the second computation.\n\tfunction computeStyleTests() {\n\n\t\t// This is a singleton, we need to execute it only once\n\t\tif ( !div ) {\n\t\t\treturn;\n\t\t}\n\n\t\tdiv.style.cssText =\n\t\t\t\"box-sizing:border-box;\" +\n\t\t\t\"position:relative;display:block;\" +\n\t\t\t\"margin:auto;border:1px;padding:1px;\" +\n\t\t\t\"top:1%;width:50%\";\n\t\tdiv.innerHTML = \"\";\n\t\tdocumentElement.appendChild( container );\n\n\t\tvar divStyle = window.getComputedStyle( div );\n\t\tpixelPositionVal = divStyle.top !== \"1%\";\n\n\t\t// Support: Android 4.0 - 4.3 only, Firefox <=3 - 44\n\t\treliableMarginLeftVal = divStyle.marginLeft === \"2px\";\n\t\tboxSizingReliableVal = divStyle.width === \"4px\";\n\n\t\t// Support: Android 4.0 - 4.3 only\n\t\t// Some styles come back with percentage values, even though they shouldn't\n\t\tdiv.style.marginRight = \"50%\";\n\t\tpixelMarginRightVal = divStyle.marginRight === \"4px\";\n\n\t\tdocumentElement.removeChild( container );\n\n\t\t// Nullify the div so it wouldn't be stored in the memory and\n\t\t// it will also be a sign that checks already performed\n\t\tdiv = null;\n\t}\n\n\tvar pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal,\n\t\tcontainer = document.createElement( \"div\" ),\n\t\tdiv = document.createElement( \"div\" );\n\n\t// Finish early in limited (non-browser) environments\n\tif ( !div.style ) {\n\t\treturn;\n\t}\n\n\t// Support: IE <=9 - 11 only\n\t// Style of cloned element affects source element cloned (#8908)\n\tdiv.style.backgroundClip = \"content-box\";\n\tdiv.cloneNode( true ).style.backgroundClip = \"\";\n\tsupport.clearCloneStyle = div.style.backgroundClip === \"content-box\";\n\n\tcontainer.style.cssText = \"border:0;width:8px;height:0;top:0;left:-9999px;\" +\n\t\t\"padding:0;margin-top:1px;position:absolute\";\n\tcontainer.appendChild( div );\n\n\tjQuery.extend( support, {\n\t\tpixelPosition: function() {\n\t\t\tcomputeStyleTests();\n\t\t\treturn pixelPositionVal;\n\t\t},\n\t\tboxSizingReliable: function() {\n\t\t\tcomputeStyleTests();\n\t\t\treturn boxSizingReliableVal;\n\t\t},\n\t\tpixelMarginRight: function() {\n\t\t\tcomputeStyleTests();\n\t\t\treturn pixelMarginRightVal;\n\t\t},\n\t\treliableMarginLeft: function() {\n\t\t\tcomputeStyleTests();\n\t\t\treturn reliableMarginLeftVal;\n\t\t}\n\t} );\n} )();\n\n\nfunction curCSS( elem, name, computed ) {\n\tvar width, minWidth, maxWidth, ret,\n\t\tstyle = elem.style;\n\n\tcomputed = computed || getStyles( elem );\n\n\t// Support: IE <=9 only\n\t// getPropertyValue is only needed for .css('filter') (#12537)\n\tif ( computed ) {\n\t\tret = computed.getPropertyValue( name ) || computed[ name ];\n\n\t\tif ( ret === \"\" && !jQuery.contains( elem.ownerDocument, elem ) ) {\n\t\t\tret = jQuery.style( elem, name );\n\t\t}\n\n\t\t// A tribute to the \"awesome hack by Dean Edwards\"\n\t\t// Android Browser returns percentage for some values,\n\t\t// but width seems to be reliably pixels.\n\t\t// This is against the CSSOM draft spec:\n\t\t// https://drafts.csswg.org/cssom/#resolved-values\n\t\tif ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) {\n\n\t\t\t// Remember the original values\n\t\t\twidth = style.width;\n\t\t\tminWidth = style.minWidth;\n\t\t\tmaxWidth = style.maxWidth;\n\n\t\t\t// Put in the new values to get a computed value out\n\t\t\tstyle.minWidth = style.maxWidth = style.width = ret;\n\t\t\tret = computed.width;\n\n\t\t\t// Revert the changed values\n\t\t\tstyle.width = width;\n\t\t\tstyle.minWidth = minWidth;\n\t\t\tstyle.maxWidth = maxWidth;\n\t\t}\n\t}\n\n\treturn ret !== undefined ?\n\n\t\t// Support: IE <=9 - 11 only\n\t\t// IE returns zIndex value as an integer.\n\t\tret + \"\" :\n\t\tret;\n}\n\n\nfunction addGetHookIf( conditionFn, hookFn ) {\n\n\t// Define the hook, we'll check on the first run if it's really needed.\n\treturn {\n\t\tget: function() {\n\t\t\tif ( conditionFn() ) {\n\n\t\t\t\t// Hook not needed (or it's not possible to use it due\n\t\t\t\t// to missing dependency), remove it.\n\t\t\t\tdelete this.get;\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Hook needed; redefine it so that the support test is not executed again.\n\t\t\treturn ( this.get = hookFn ).apply( this, arguments );\n\t\t}\n\t};\n}\n\n\nvar\n\n\t// Swappable if display is none or starts with table\n\t// except \"table\", \"table-cell\", or \"table-caption\"\n\t// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display\n\trdisplayswap = /^(none|table(?!-c[ea]).+)/,\n\tcssShow = { position: \"absolute\", visibility: \"hidden\", display: \"block\" },\n\tcssNormalTransform = {\n\t\tletterSpacing: \"0\",\n\t\tfontWeight: \"400\"\n\t},\n\n\tcssPrefixes = [ \"Webkit\", \"Moz\", \"ms\" ],\n\temptyStyle = document.createElement( \"div\" ).style;\n\n// Return a css property mapped to a potentially vendor prefixed property\nfunction vendorPropName( name ) {\n\n\t// Shortcut for names that are not vendor prefixed\n\tif ( name in emptyStyle ) {\n\t\treturn name;\n\t}\n\n\t// Check for vendor prefixed names\n\tvar capName = name[ 0 ].toUpperCase() + name.slice( 1 ),\n\t\ti = cssPrefixes.length;\n\n\twhile ( i-- ) {\n\t\tname = cssPrefixes[ i ] + capName;\n\t\tif ( name in emptyStyle ) {\n\t\t\treturn name;\n\t\t}\n\t}\n}\n\nfunction setPositiveNumber( elem, value, subtract ) {\n\n\t// Any relative (+/-) values have already been\n\t// normalized at this point\n\tvar matches = rcssNum.exec( value );\n\treturn matches ?\n\n\t\t// Guard against undefined \"subtract\", e.g., when used as in cssHooks\n\t\tMath.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || \"px\" ) :\n\t\tvalue;\n}\n\nfunction augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {\n\tvar i,\n\t\tval = 0;\n\n\t// If we already have the right measurement, avoid augmentation\n\tif ( extra === ( isBorderBox ? \"border\" : \"content\" ) ) {\n\t\ti = 4;\n\n\t// Otherwise initialize for horizontal or vertical properties\n\t} else {\n\t\ti = name === \"width\" ? 1 : 0;\n\t}\n\n\tfor ( ; i < 4; i += 2 ) {\n\n\t\t// Both box models exclude margin, so add it if we want it\n\t\tif ( extra === \"margin\" ) {\n\t\t\tval += jQuery.css( elem, extra + cssExpand[ i ], true, styles );\n\t\t}\n\n\t\tif ( isBorderBox ) {\n\n\t\t\t// border-box includes padding, so remove it if we want content\n\t\t\tif ( extra === \"content\" ) {\n\t\t\t\tval -= jQuery.css( elem, \"padding\" + cssExpand[ i ], true, styles );\n\t\t\t}\n\n\t\t\t// At this point, extra isn't border nor margin, so remove border\n\t\t\tif ( extra !== \"margin\" ) {\n\t\t\t\tval -= jQuery.css( elem, \"border\" + cssExpand[ i ] + \"Width\", true, styles );\n\t\t\t}\n\t\t} else {\n\n\t\t\t// At this point, extra isn't content, so add padding\n\t\t\tval += jQuery.css( elem, \"padding\" + cssExpand[ i ], true, styles );\n\n\t\t\t// At this point, extra isn't content nor padding, so add border\n\t\t\tif ( extra !== \"padding\" ) {\n\t\t\t\tval += jQuery.css( elem, \"border\" + cssExpand[ i ] + \"Width\", true, styles );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn val;\n}\n\nfunction getWidthOrHeight( elem, name, extra ) {\n\n\t// Start with offset property, which is equivalent to the border-box value\n\tvar val,\n\t\tvalueIsBorderBox = true,\n\t\tstyles = getStyles( elem ),\n\t\tisBorderBox = jQuery.css( elem, \"boxSizing\", false, styles ) === \"border-box\";\n\n\t// Support: IE <=11 only\n\t// Running getBoundingClientRect on a disconnected node\n\t// in IE throws an error.\n\tif ( elem.getClientRects().length ) {\n\t\tval = elem.getBoundingClientRect()[ name ];\n\t}\n\n\t// Some non-html elements return undefined for offsetWidth, so check for null/undefined\n\t// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285\n\t// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668\n\tif ( val <= 0 || val == null ) {\n\n\t\t// Fall back to computed then uncomputed css if necessary\n\t\tval = curCSS( elem, name, styles );\n\t\tif ( val < 0 || val == null ) {\n\t\t\tval = elem.style[ name ];\n\t\t}\n\n\t\t// Computed unit is not pixels. Stop here and return.\n\t\tif ( rnumnonpx.test( val ) ) {\n\t\t\treturn val;\n\t\t}\n\n\t\t// Check for style in case a browser which returns unreliable values\n\t\t// for getComputedStyle silently falls back to the reliable elem.style\n\t\tvalueIsBorderBox = isBorderBox &&\n\t\t\t( support.boxSizingReliable() || val === elem.style[ name ] );\n\n\t\t// Normalize \"\", auto, and prepare for extra\n\t\tval = parseFloat( val ) || 0;\n\t}\n\n\t// Use the active box-sizing model to add/subtract irrelevant styles\n\treturn ( val +\n\t\taugmentWidthOrHeight(\n\t\t\telem,\n\t\t\tname,\n\t\t\textra || ( isBorderBox ? \"border\" : \"content\" ),\n\t\t\tvalueIsBorderBox,\n\t\t\tstyles\n\t\t)\n\t) + \"px\";\n}\n\njQuery.extend( {\n\n\t// Add in style property hooks for overriding the default\n\t// behavior of getting and setting a style property\n\tcssHooks: {\n\t\topacity: {\n\t\t\tget: function( elem, computed ) {\n\t\t\t\tif ( computed ) {\n\n\t\t\t\t\t// We should always get a number back from opacity\n\t\t\t\t\tvar ret = curCSS( elem, \"opacity\" );\n\t\t\t\t\treturn ret === \"\" ? \"1\" : ret;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\t// Don't automatically add \"px\" to these possibly-unitless properties\n\tcssNumber: {\n\t\t\"animationIterationCount\": true,\n\t\t\"columnCount\": true,\n\t\t\"fillOpacity\": true,\n\t\t\"flexGrow\": true,\n\t\t\"flexShrink\": true,\n\t\t\"fontWeight\": true,\n\t\t\"lineHeight\": true,\n\t\t\"opacity\": true,\n\t\t\"order\": true,\n\t\t\"orphans\": true,\n\t\t\"widows\": true,\n\t\t\"zIndex\": true,\n\t\t\"zoom\": true\n\t},\n\n\t// Add in properties whose names you wish to fix before\n\t// setting or getting the value\n\tcssProps: {\n\t\t\"float\": \"cssFloat\"\n\t},\n\n\t// Get and set the style property on a DOM Node\n\tstyle: function( elem, name, value, extra ) {\n\n\t\t// Don't set styles on text and comment nodes\n\t\tif ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Make sure that we're working with the right name\n\t\tvar ret, type, hooks,\n\t\t\torigName = jQuery.camelCase( name ),\n\t\t\tstyle = elem.style;\n\n\t\tname = jQuery.cssProps[ origName ] ||\n\t\t\t( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );\n\n\t\t// Gets hook for the prefixed version, then unprefixed version\n\t\thooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];\n\n\t\t// Check if we're setting a value\n\t\tif ( value !== undefined ) {\n\t\t\ttype = typeof value;\n\n\t\t\t// Convert \"+=\" or \"-=\" to relative numbers (#7345)\n\t\t\tif ( type === \"string\" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {\n\t\t\t\tvalue = adjustCSS( elem, name, ret );\n\n\t\t\t\t// Fixes bug #9237\n\t\t\t\ttype = \"number\";\n\t\t\t}\n\n\t\t\t// Make sure that null and NaN values aren't set (#7116)\n\t\t\tif ( value == null || value !== value ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// If a number was passed in, add the unit (except for certain CSS properties)\n\t\t\tif ( type === \"number\" ) {\n\t\t\t\tvalue += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? \"\" : \"px\" );\n\t\t\t}\n\n\t\t\t// background-* props affect original clone's values\n\t\t\tif ( !support.clearCloneStyle && value === \"\" && name.indexOf( \"background\" ) === 0 ) {\n\t\t\t\tstyle[ name ] = \"inherit\";\n\t\t\t}\n\n\t\t\t// If a hook was provided, use that value, otherwise just set the specified value\n\t\t\tif ( !hooks || !( \"set\" in hooks ) ||\n\t\t\t\t( value = hooks.set( elem, value, extra ) ) !== undefined ) {\n\n\t\t\t\tstyle[ name ] = value;\n\t\t\t}\n\n\t\t} else {\n\n\t\t\t// If a hook was provided get the non-computed value from there\n\t\t\tif ( hooks && \"get\" in hooks &&\n\t\t\t\t( ret = hooks.get( elem, false, extra ) ) !== undefined ) {\n\n\t\t\t\treturn ret;\n\t\t\t}\n\n\t\t\t// Otherwise just get the value from the style object\n\t\t\treturn style[ name ];\n\t\t}\n\t},\n\n\tcss: function( elem, name, extra, styles ) {\n\t\tvar val, num, hooks,\n\t\t\torigName = jQuery.camelCase( name );\n\n\t\t// Make sure that we're working with the right name\n\t\tname = jQuery.cssProps[ origName ] ||\n\t\t\t( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );\n\n\t\t// Try prefixed name followed by the unprefixed name\n\t\thooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];\n\n\t\t// If a hook was provided get the computed value from there\n\t\tif ( hooks && \"get\" in hooks ) {\n\t\t\tval = hooks.get( elem, true, extra );\n\t\t}\n\n\t\t// Otherwise, if a way to get the computed value exists, use that\n\t\tif ( val === undefined ) {\n\t\t\tval = curCSS( elem, name, styles );\n\t\t}\n\n\t\t// Convert \"normal\" to computed value\n\t\tif ( val === \"normal\" && name in cssNormalTransform ) {\n\t\t\tval = cssNormalTransform[ name ];\n\t\t}\n\n\t\t// Make numeric if forced or a qualifier was provided and val looks numeric\n\t\tif ( extra === \"\" || extra ) {\n\t\t\tnum = parseFloat( val );\n\t\t\treturn extra === true || isFinite( num ) ? num || 0 : val;\n\t\t}\n\t\treturn val;\n\t}\n} );\n\njQuery.each( [ \"height\", \"width\" ], function( i, name ) {\n\tjQuery.cssHooks[ name ] = {\n\t\tget: function( elem, computed, extra ) {\n\t\t\tif ( computed ) {\n\n\t\t\t\t// Certain elements can have dimension info if we invisibly show them\n\t\t\t\t// but it must have a current display style that would benefit\n\t\t\t\treturn rdisplayswap.test( jQuery.css( elem, \"display\" ) ) &&\n\n\t\t\t\t\t// Support: Safari 8+\n\t\t\t\t\t// Table columns in Safari have non-zero offsetWidth & zero\n\t\t\t\t\t// getBoundingClientRect().width unless display is changed.\n\t\t\t\t\t// Support: IE <=11 only\n\t\t\t\t\t// Running getBoundingClientRect on a disconnected node\n\t\t\t\t\t// in IE throws an error.\n\t\t\t\t\t( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?\n\t\t\t\t\t\tswap( elem, cssShow, function() {\n\t\t\t\t\t\t\treturn getWidthOrHeight( elem, name, extra );\n\t\t\t\t\t\t} ) :\n\t\t\t\t\t\tgetWidthOrHeight( elem, name, extra );\n\t\t\t}\n\t\t},\n\n\t\tset: function( elem, value, extra ) {\n\t\t\tvar matches,\n\t\t\t\tstyles = extra && getStyles( elem ),\n\t\t\t\tsubtract = extra && augmentWidthOrHeight(\n\t\t\t\t\telem,\n\t\t\t\t\tname,\n\t\t\t\t\textra,\n\t\t\t\t\tjQuery.css( elem, \"boxSizing\", false, styles ) === \"border-box\",\n\t\t\t\t\tstyles\n\t\t\t\t);\n\n\t\t\t// Convert to pixels if value adjustment is needed\n\t\t\tif ( subtract && ( matches = rcssNum.exec( value ) ) &&\n\t\t\t\t( matches[ 3 ] || \"px\" ) !== \"px\" ) {\n\n\t\t\t\telem.style[ name ] = value;\n\t\t\t\tvalue = jQuery.css( elem, name );\n\t\t\t}\n\n\t\t\treturn setPositiveNumber( elem, value, subtract );\n\t\t}\n\t};\n} );\n\njQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,\n\tfunction( elem, computed ) {\n\t\tif ( computed ) {\n\t\t\treturn ( parseFloat( curCSS( elem, \"marginLeft\" ) ) ||\n\t\t\t\telem.getBoundingClientRect().left -\n\t\t\t\t\tswap( elem, { marginLeft: 0 }, function() {\n\t\t\t\t\t\treturn elem.getBoundingClientRect().left;\n\t\t\t\t\t} )\n\t\t\t\t) + \"px\";\n\t\t}\n\t}\n);\n\n// These hooks are used by animate to expand properties\njQuery.each( {\n\tmargin: \"\",\n\tpadding: \"\",\n\tborder: \"Width\"\n}, function( prefix, suffix ) {\n\tjQuery.cssHooks[ prefix + suffix ] = {\n\t\texpand: function( value ) {\n\t\t\tvar i = 0,\n\t\t\t\texpanded = {},\n\n\t\t\t\t// Assumes a single number if not a string\n\t\t\t\tparts = typeof value === \"string\" ? value.split( \" \" ) : [ value ];\n\n\t\t\tfor ( ; i < 4; i++ ) {\n\t\t\t\texpanded[ prefix + cssExpand[ i ] + suffix ] =\n\t\t\t\t\tparts[ i ] || parts[ i - 2 ] || parts[ 0 ];\n\t\t\t}\n\n\t\t\treturn expanded;\n\t\t}\n\t};\n\n\tif ( !rmargin.test( prefix ) ) {\n\t\tjQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;\n\t}\n} );\n\njQuery.fn.extend( {\n\tcss: function( name, value ) {\n\t\treturn access( this, function( elem, name, value ) {\n\t\t\tvar styles, len,\n\t\t\t\tmap = {},\n\t\t\t\ti = 0;\n\n\t\t\tif ( jQuery.isArray( name ) ) {\n\t\t\t\tstyles = getStyles( elem );\n\t\t\t\tlen = name.length;\n\n\t\t\t\tfor ( ; i < len; i++ ) {\n\t\t\t\t\tmap[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );\n\t\t\t\t}\n\n\t\t\t\treturn map;\n\t\t\t}\n\n\t\t\treturn value !== undefined ?\n\t\t\t\tjQuery.style( elem, name, value ) :\n\t\t\t\tjQuery.css( elem, name );\n\t\t}, name, value, arguments.length > 1 );\n\t}\n} );\n\n\nfunction Tween( elem, options, prop, end, easing ) {\n\treturn new Tween.prototype.init( elem, options, prop, end, easing );\n}\njQuery.Tween = Tween;\n\nTween.prototype = {\n\tconstructor: Tween,\n\tinit: function( elem, options, prop, end, easing, unit ) {\n\t\tthis.elem = elem;\n\t\tthis.prop = prop;\n\t\tthis.easing = easing || jQuery.easing._default;\n\t\tthis.options = options;\n\t\tthis.start = this.now = this.cur();\n\t\tthis.end = end;\n\t\tthis.unit = unit || ( jQuery.cssNumber[ prop ] ? \"\" : \"px\" );\n\t},\n\tcur: function() {\n\t\tvar hooks = Tween.propHooks[ this.prop ];\n\n\t\treturn hooks && hooks.get ?\n\t\t\thooks.get( this ) :\n\t\t\tTween.propHooks._default.get( this );\n\t},\n\trun: function( percent ) {\n\t\tvar eased,\n\t\t\thooks = Tween.propHooks[ this.prop ];\n\n\t\tif ( this.options.duration ) {\n\t\t\tthis.pos = eased = jQuery.easing[ this.easing ](\n\t\t\t\tpercent, this.options.duration * percent, 0, 1, this.options.duration\n\t\t\t);\n\t\t} else {\n\t\t\tthis.pos = eased = percent;\n\t\t}\n\t\tthis.now = ( this.end - this.start ) * eased + this.start;\n\n\t\tif ( this.options.step ) {\n\t\t\tthis.options.step.call( this.elem, this.now, this );\n\t\t}\n\n\t\tif ( hooks && hooks.set ) {\n\t\t\thooks.set( this );\n\t\t} else {\n\t\t\tTween.propHooks._default.set( this );\n\t\t}\n\t\treturn this;\n\t}\n};\n\nTween.prototype.init.prototype = Tween.prototype;\n\nTween.propHooks = {\n\t_default: {\n\t\tget: function( tween ) {\n\t\t\tvar result;\n\n\t\t\t// Use a property on the element directly when it is not a DOM element,\n\t\t\t// or when there is no matching style property that exists.\n\t\t\tif ( tween.elem.nodeType !== 1 ||\n\t\t\t\ttween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {\n\t\t\t\treturn tween.elem[ tween.prop ];\n\t\t\t}\n\n\t\t\t// Passing an empty string as a 3rd parameter to .css will automatically\n\t\t\t// attempt a parseFloat and fallback to a string if the parse fails.\n\t\t\t// Simple values such as \"10px\" are parsed to Float;\n\t\t\t// complex values such as \"rotate(1rad)\" are returned as-is.\n\t\t\tresult = jQuery.css( tween.elem, tween.prop, \"\" );\n\n\t\t\t// Empty strings, null, undefined and \"auto\" are converted to 0.\n\t\t\treturn !result || result === \"auto\" ? 0 : result;\n\t\t},\n\t\tset: function( tween ) {\n\n\t\t\t// Use step hook for back compat.\n\t\t\t// Use cssHook if its there.\n\t\t\t// Use .style if available and use plain properties where available.\n\t\t\tif ( jQuery.fx.step[ tween.prop ] ) {\n\t\t\t\tjQuery.fx.step[ tween.prop ]( tween );\n\t\t\t} else if ( tween.elem.nodeType === 1 &&\n\t\t\t\t( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||\n\t\t\t\t\tjQuery.cssHooks[ tween.prop ] ) ) {\n\t\t\t\tjQuery.style( tween.elem, tween.prop, tween.now + tween.unit );\n\t\t\t} else {\n\t\t\t\ttween.elem[ tween.prop ] = tween.now;\n\t\t\t}\n\t\t}\n\t}\n};\n\n// Support: IE <=9 only\n// Panic based approach to setting things on disconnected nodes\nTween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {\n\tset: function( tween ) {\n\t\tif ( tween.elem.nodeType && tween.elem.parentNode ) {\n\t\t\ttween.elem[ tween.prop ] = tween.now;\n\t\t}\n\t}\n};\n\njQuery.easing = {\n\tlinear: function( p ) {\n\t\treturn p;\n\t},\n\tswing: function( p ) {\n\t\treturn 0.5 - Math.cos( p * Math.PI ) / 2;\n\t},\n\t_default: \"swing\"\n};\n\njQuery.fx = Tween.prototype.init;\n\n// Back compat <1.8 extension point\njQuery.fx.step = {};\n\n\n\n\nvar\n\tfxNow, timerId,\n\trfxtypes = /^(?:toggle|show|hide)$/,\n\trrun = /queueHooks$/;\n\nfunction raf() {\n\tif ( timerId ) {\n\t\twindow.requestAnimationFrame( raf );\n\t\tjQuery.fx.tick();\n\t}\n}\n\n// Animations created synchronously will run synchronously\nfunction createFxNow() {\n\twindow.setTimeout( function() {\n\t\tfxNow = undefined;\n\t} );\n\treturn ( fxNow = jQuery.now() );\n}\n\n// Generate parameters to create a standard animation\nfunction genFx( type, includeWidth ) {\n\tvar which,\n\t\ti = 0,\n\t\tattrs = { height: type };\n\n\t// If we include width, step value is 1 to do all cssExpand values,\n\t// otherwise step value is 2 to skip over Left and Right\n\tincludeWidth = includeWidth ? 1 : 0;\n\tfor ( ; i < 4; i += 2 - includeWidth ) {\n\t\twhich = cssExpand[ i ];\n\t\tattrs[ \"margin\" + which ] = attrs[ \"padding\" + which ] = type;\n\t}\n\n\tif ( includeWidth ) {\n\t\tattrs.opacity = attrs.width = type;\n\t}\n\n\treturn attrs;\n}\n\nfunction createTween( value, prop, animation ) {\n\tvar tween,\n\t\tcollection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ \"*\" ] ),\n\t\tindex = 0,\n\t\tlength = collection.length;\n\tfor ( ; index < length; index++ ) {\n\t\tif ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {\n\n\t\t\t// We're done with this property\n\t\t\treturn tween;\n\t\t}\n\t}\n}\n\nfunction defaultPrefilter( elem, props, opts ) {\n\tvar prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,\n\t\tisBox = \"width\" in props || \"height\" in props,\n\t\tanim = this,\n\t\torig = {},\n\t\tstyle = elem.style,\n\t\thidden = elem.nodeType && isHiddenWithinTree( elem ),\n\t\tdataShow = dataPriv.get( elem, \"fxshow\" );\n\n\t// Queue-skipping animations hijack the fx hooks\n\tif ( !opts.queue ) {\n\t\thooks = jQuery._queueHooks( elem, \"fx\" );\n\t\tif ( hooks.unqueued == null ) {\n\t\t\thooks.unqueued = 0;\n\t\t\toldfire = hooks.empty.fire;\n\t\t\thooks.empty.fire = function() {\n\t\t\t\tif ( !hooks.unqueued ) {\n\t\t\t\t\toldfire();\n\t\t\t\t}\n\t\t\t};\n\t\t}\n\t\thooks.unqueued++;\n\n\t\tanim.always( function() {\n\n\t\t\t// Ensure the complete handler is called before this completes\n\t\t\tanim.always( function() {\n\t\t\t\thooks.unqueued--;\n\t\t\t\tif ( !jQuery.queue( elem, \"fx\" ).length ) {\n\t\t\t\t\thooks.empty.fire();\n\t\t\t\t}\n\t\t\t} );\n\t\t} );\n\t}\n\n\t// Detect show/hide animations\n\tfor ( prop in props ) {\n\t\tvalue = props[ prop ];\n\t\tif ( rfxtypes.test( value ) ) {\n\t\t\tdelete props[ prop ];\n\t\t\ttoggle = toggle || value === \"toggle\";\n\t\t\tif ( value === ( hidden ? \"hide\" : \"show\" ) ) {\n\n\t\t\t\t// Pretend to be hidden if this is a \"show\" and\n\t\t\t\t// there is still data from a stopped show/hide\n\t\t\t\tif ( value === \"show\" && dataShow && dataShow[ prop ] !== undefined ) {\n\t\t\t\t\thidden = true;\n\n\t\t\t\t// Ignore all other no-op show/hide data\n\t\t\t\t} else {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\t\t\t}\n\t\t\torig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );\n\t\t}\n\t}\n\n\t// Bail out if this is a no-op like .hide().hide()\n\tpropTween = !jQuery.isEmptyObject( props );\n\tif ( !propTween && jQuery.isEmptyObject( orig ) ) {\n\t\treturn;\n\t}\n\n\t// Restrict \"overflow\" and \"display\" styles during box animations\n\tif ( isBox && elem.nodeType === 1 ) {\n\n\t\t// Support: IE <=9 - 11, Edge 12 - 13\n\t\t// Record all 3 overflow attributes because IE does not infer the shorthand\n\t\t// from identically-valued overflowX and overflowY\n\t\topts.overflow = [ style.overflow, style.overflowX, style.overflowY ];\n\n\t\t// Identify a display type, preferring old show/hide data over the CSS cascade\n\t\trestoreDisplay = dataShow && dataShow.display;\n\t\tif ( restoreDisplay == null ) {\n\t\t\trestoreDisplay = dataPriv.get( elem, \"display\" );\n\t\t}\n\t\tdisplay = jQuery.css( elem, \"display\" );\n\t\tif ( display === \"none\" ) {\n\t\t\tif ( restoreDisplay ) {\n\t\t\t\tdisplay = restoreDisplay;\n\t\t\t} else {\n\n\t\t\t\t// Get nonempty value(s) by temporarily forcing visibility\n\t\t\t\tshowHide( [ elem ], true );\n\t\t\t\trestoreDisplay = elem.style.display || restoreDisplay;\n\t\t\t\tdisplay = jQuery.css( elem, \"display\" );\n\t\t\t\tshowHide( [ elem ] );\n\t\t\t}\n\t\t}\n\n\t\t// Animate inline elements as inline-block\n\t\tif ( display === \"inline\" || display === \"inline-block\" && restoreDisplay != null ) {\n\t\t\tif ( jQuery.css( elem, \"float\" ) === \"none\" ) {\n\n\t\t\t\t// Restore the original display value at the end of pure show/hide animations\n\t\t\t\tif ( !propTween ) {\n\t\t\t\t\tanim.done( function() {\n\t\t\t\t\t\tstyle.display = restoreDisplay;\n\t\t\t\t\t} );\n\t\t\t\t\tif ( restoreDisplay == null ) {\n\t\t\t\t\t\tdisplay = style.display;\n\t\t\t\t\t\trestoreDisplay = display === \"none\" ? \"\" : display;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tstyle.display = \"inline-block\";\n\t\t\t}\n\t\t}\n\t}\n\n\tif ( opts.overflow ) {\n\t\tstyle.overflow = \"hidden\";\n\t\tanim.always( function() {\n\t\t\tstyle.overflow = opts.overflow[ 0 ];\n\t\t\tstyle.overflowX = opts.overflow[ 1 ];\n\t\t\tstyle.overflowY = opts.overflow[ 2 ];\n\t\t} );\n\t}\n\n\t// Implement show/hide animations\n\tpropTween = false;\n\tfor ( prop in orig ) {\n\n\t\t// General show/hide setup for this element animation\n\t\tif ( !propTween ) {\n\t\t\tif ( dataShow ) {\n\t\t\t\tif ( \"hidden\" in dataShow ) {\n\t\t\t\t\thidden = dataShow.hidden;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tdataShow = dataPriv.access( elem, \"fxshow\", { display: restoreDisplay } );\n\t\t\t}\n\n\t\t\t// Store hidden/visible for toggle so `.stop().toggle()` \"reverses\"\n\t\t\tif ( toggle ) {\n\t\t\t\tdataShow.hidden = !hidden;\n\t\t\t}\n\n\t\t\t// Show elements before animating them\n\t\t\tif ( hidden ) {\n\t\t\t\tshowHide( [ elem ], true );\n\t\t\t}\n\n\t\t\t/* eslint-disable no-loop-func */\n\n\t\t\tanim.done( function() {\n\n\t\t\t/* eslint-enable no-loop-func */\n\n\t\t\t\t// The final step of a \"hide\" animation is actually hiding the element\n\t\t\t\tif ( !hidden ) {\n\t\t\t\t\tshowHide( [ elem ] );\n\t\t\t\t}\n\t\t\t\tdataPriv.remove( elem, \"fxshow\" );\n\t\t\t\tfor ( prop in orig ) {\n\t\t\t\t\tjQuery.style( elem, prop, orig[ prop ] );\n\t\t\t\t}\n\t\t\t} );\n\t\t}\n\n\t\t// Per-property setup\n\t\tpropTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );\n\t\tif ( !( prop in dataShow ) ) {\n\t\t\tdataShow[ prop ] = propTween.start;\n\t\t\tif ( hidden ) {\n\t\t\t\tpropTween.end = propTween.start;\n\t\t\t\tpropTween.start = 0;\n\t\t\t}\n\t\t}\n\t}\n}\n\nfunction propFilter( props, specialEasing ) {\n\tvar index, name, easing, value, hooks;\n\n\t// camelCase, specialEasing and expand cssHook pass\n\tfor ( index in props ) {\n\t\tname = jQuery.camelCase( index );\n\t\teasing = specialEasing[ name ];\n\t\tvalue = props[ index ];\n\t\tif ( jQuery.isArray( value ) ) {\n\t\t\teasing = value[ 1 ];\n\t\t\tvalue = props[ index ] = value[ 0 ];\n\t\t}\n\n\t\tif ( index !== name ) {\n\t\t\tprops[ name ] = value;\n\t\t\tdelete props[ index ];\n\t\t}\n\n\t\thooks = jQuery.cssHooks[ name ];\n\t\tif ( hooks && \"expand\" in hooks ) {\n\t\t\tvalue = hooks.expand( value );\n\t\t\tdelete props[ name ];\n\n\t\t\t// Not quite $.extend, this won't overwrite existing keys.\n\t\t\t// Reusing 'index' because we have the correct \"name\"\n\t\t\tfor ( index in value ) {\n\t\t\t\tif ( !( index in props ) ) {\n\t\t\t\t\tprops[ index ] = value[ index ];\n\t\t\t\t\tspecialEasing[ index ] = easing;\n\t\t\t\t}\n\t\t\t}\n\t\t} else {\n\t\t\tspecialEasing[ name ] = easing;\n\t\t}\n\t}\n}\n\nfunction Animation( elem, properties, options ) {\n\tvar result,\n\t\tstopped,\n\t\tindex = 0,\n\t\tlength = Animation.prefilters.length,\n\t\tdeferred = jQuery.Deferred().always( function() {\n\n\t\t\t// Don't match elem in the :animated selector\n\t\t\tdelete tick.elem;\n\t\t} ),\n\t\ttick = function() {\n\t\t\tif ( stopped ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t\tvar currentTime = fxNow || createFxNow(),\n\t\t\t\tremaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),\n\n\t\t\t\t// Support: Android 2.3 only\n\t\t\t\t// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)\n\t\t\t\ttemp = remaining / animation.duration || 0,\n\t\t\t\tpercent = 1 - temp,\n\t\t\t\tindex = 0,\n\t\t\t\tlength = animation.tweens.length;\n\n\t\t\tfor ( ; index < length; index++ ) {\n\t\t\t\tanimation.tweens[ index ].run( percent );\n\t\t\t}\n\n\t\t\tdeferred.notifyWith( elem, [ animation, percent, remaining ] );\n\n\t\t\tif ( percent < 1 && length ) {\n\t\t\t\treturn remaining;\n\t\t\t} else {\n\t\t\t\tdeferred.resolveWith( elem, [ animation ] );\n\t\t\t\treturn false;\n\t\t\t}\n\t\t},\n\t\tanimation = deferred.promise( {\n\t\t\telem: elem,\n\t\t\tprops: jQuery.extend( {}, properties ),\n\t\t\topts: jQuery.extend( true, {\n\t\t\t\tspecialEasing: {},\n\t\t\t\teasing: jQuery.easing._default\n\t\t\t}, options ),\n\t\t\toriginalProperties: properties,\n\t\t\toriginalOptions: options,\n\t\t\tstartTime: fxNow || createFxNow(),\n\t\t\tduration: options.duration,\n\t\t\ttweens: [],\n\t\t\tcreateTween: function( prop, end ) {\n\t\t\t\tvar tween = jQuery.Tween( elem, animation.opts, prop, end,\n\t\t\t\t\t\tanimation.opts.specialEasing[ prop ] || animation.opts.easing );\n\t\t\t\tanimation.tweens.push( tween );\n\t\t\t\treturn tween;\n\t\t\t},\n\t\t\tstop: function( gotoEnd ) {\n\t\t\t\tvar index = 0,\n\n\t\t\t\t\t// If we are going to the end, we want to run all the tweens\n\t\t\t\t\t// otherwise we skip this part\n\t\t\t\t\tlength = gotoEnd ? animation.tweens.length : 0;\n\t\t\t\tif ( stopped ) {\n\t\t\t\t\treturn this;\n\t\t\t\t}\n\t\t\t\tstopped = true;\n\t\t\t\tfor ( ; index < length; index++ ) {\n\t\t\t\t\tanimation.tweens[ index ].run( 1 );\n\t\t\t\t}\n\n\t\t\t\t// Resolve when we played the last frame; otherwise, reject\n\t\t\t\tif ( gotoEnd ) {\n\t\t\t\t\tdeferred.notifyWith( elem, [ animation, 1, 0 ] );\n\t\t\t\t\tdeferred.resolveWith( elem, [ animation, gotoEnd ] );\n\t\t\t\t} else {\n\t\t\t\t\tdeferred.rejectWith( elem, [ animation, gotoEnd ] );\n\t\t\t\t}\n\t\t\t\treturn this;\n\t\t\t}\n\t\t} ),\n\t\tprops = animation.props;\n\n\tpropFilter( props, animation.opts.specialEasing );\n\n\tfor ( ; index < length; index++ ) {\n\t\tresult = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );\n\t\tif ( result ) {\n\t\t\tif ( jQuery.isFunction( result.stop ) ) {\n\t\t\t\tjQuery._queueHooks( animation.elem, animation.opts.queue ).stop =\n\t\t\t\t\tjQuery.proxy( result.stop, result );\n\t\t\t}\n\t\t\treturn result;\n\t\t}\n\t}\n\n\tjQuery.map( props, createTween, animation );\n\n\tif ( jQuery.isFunction( animation.opts.start ) ) {\n\t\tanimation.opts.start.call( elem, animation );\n\t}\n\n\tjQuery.fx.timer(\n\t\tjQuery.extend( tick, {\n\t\t\telem: elem,\n\t\t\tanim: animation,\n\t\t\tqueue: animation.opts.queue\n\t\t} )\n\t);\n\n\t// attach callbacks from options\n\treturn animation.progress( animation.opts.progress )\n\t\t.done( animation.opts.done, animation.opts.complete )\n\t\t.fail( animation.opts.fail )\n\t\t.always( animation.opts.always );\n}\n\njQuery.Animation = jQuery.extend( Animation, {\n\n\ttweeners: {\n\t\t\"*\": [ function( prop, value ) {\n\t\t\tvar tween = this.createTween( prop, value );\n\t\t\tadjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );\n\t\t\treturn tween;\n\t\t} ]\n\t},\n\n\ttweener: function( props, callback ) {\n\t\tif ( jQuery.isFunction( props ) ) {\n\t\t\tcallback = props;\n\t\t\tprops = [ \"*\" ];\n\t\t} else {\n\t\t\tprops = props.match( rnothtmlwhite );\n\t\t}\n\n\t\tvar prop,\n\t\t\tindex = 0,\n\t\t\tlength = props.length;\n\n\t\tfor ( ; index < length; index++ ) {\n\t\t\tprop = props[ index ];\n\t\t\tAnimation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];\n\t\t\tAnimation.tweeners[ prop ].unshift( callback );\n\t\t}\n\t},\n\n\tprefilters: [ defaultPrefilter ],\n\n\tprefilter: function( callback, prepend ) {\n\t\tif ( prepend ) {\n\t\t\tAnimation.prefilters.unshift( callback );\n\t\t} else {\n\t\t\tAnimation.prefilters.push( callback );\n\t\t}\n\t}\n} );\n\njQuery.speed = function( speed, easing, fn ) {\n\tvar opt = speed && typeof speed === \"object\" ? jQuery.extend( {}, speed ) : {\n\t\tcomplete: fn || !fn && easing ||\n\t\t\tjQuery.isFunction( speed ) && speed,\n\t\tduration: speed,\n\t\teasing: fn && easing || easing && !jQuery.isFunction( easing ) && easing\n\t};\n\n\t// Go to the end state if fx are off or if document is hidden\n\tif ( jQuery.fx.off || document.hidden ) {\n\t\topt.duration = 0;\n\n\t} else {\n\t\tif ( typeof opt.duration !== \"number\" ) {\n\t\t\tif ( opt.duration in jQuery.fx.speeds ) {\n\t\t\t\topt.duration = jQuery.fx.speeds[ opt.duration ];\n\n\t\t\t} else {\n\t\t\t\topt.duration = jQuery.fx.speeds._default;\n\t\t\t}\n\t\t}\n\t}\n\n\t// Normalize opt.queue - true/undefined/null -> \"fx\"\n\tif ( opt.queue == null || opt.queue === true ) {\n\t\topt.queue = \"fx\";\n\t}\n\n\t// Queueing\n\topt.old = opt.complete;\n\n\topt.complete = function() {\n\t\tif ( jQuery.isFunction( opt.old ) ) {\n\t\t\topt.old.call( this );\n\t\t}\n\n\t\tif ( opt.queue ) {\n\t\t\tjQuery.dequeue( this, opt.queue );\n\t\t}\n\t};\n\n\treturn opt;\n};\n\njQuery.fn.extend( {\n\tfadeTo: function( speed, to, easing, callback ) {\n\n\t\t// Show any hidden elements after setting opacity to 0\n\t\treturn this.filter( isHiddenWithinTree ).css( \"opacity\", 0 ).show()\n\n\t\t\t// Animate to the value specified\n\t\t\t.end().animate( { opacity: to }, speed, easing, callback );\n\t},\n\tanimate: function( prop, speed, easing, callback ) {\n\t\tvar empty = jQuery.isEmptyObject( prop ),\n\t\t\toptall = jQuery.speed( speed, easing, callback ),\n\t\t\tdoAnimation = function() {\n\n\t\t\t\t// Operate on a copy of prop so per-property easing won't be lost\n\t\t\t\tvar anim = Animation( this, jQuery.extend( {}, prop ), optall );\n\n\t\t\t\t// Empty animations, or finishing resolves immediately\n\t\t\t\tif ( empty || dataPriv.get( this, \"finish\" ) ) {\n\t\t\t\t\tanim.stop( true );\n\t\t\t\t}\n\t\t\t};\n\t\t\tdoAnimation.finish = doAnimation;\n\n\t\treturn empty || optall.queue === false ?\n\t\t\tthis.each( doAnimation ) :\n\t\t\tthis.queue( optall.queue, doAnimation );\n\t},\n\tstop: function( type, clearQueue, gotoEnd ) {\n\t\tvar stopQueue = function( hooks ) {\n\t\t\tvar stop = hooks.stop;\n\t\t\tdelete hooks.stop;\n\t\t\tstop( gotoEnd );\n\t\t};\n\n\t\tif ( typeof type !== \"string\" ) {\n\t\t\tgotoEnd = clearQueue;\n\t\t\tclearQueue = type;\n\t\t\ttype = undefined;\n\t\t}\n\t\tif ( clearQueue && type !== false ) {\n\t\t\tthis.queue( type || \"fx\", [] );\n\t\t}\n\n\t\treturn this.each( function() {\n\t\t\tvar dequeue = true,\n\t\t\t\tindex = type != null && type + \"queueHooks\",\n\t\t\t\ttimers = jQuery.timers,\n\t\t\t\tdata = dataPriv.get( this );\n\n\t\t\tif ( index ) {\n\t\t\t\tif ( data[ index ] && data[ index ].stop ) {\n\t\t\t\t\tstopQueue( data[ index ] );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tfor ( index in data ) {\n\t\t\t\t\tif ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {\n\t\t\t\t\t\tstopQueue( data[ index ] );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tfor ( index = timers.length; index--; ) {\n\t\t\t\tif ( timers[ index ].elem === this &&\n\t\t\t\t\t( type == null || timers[ index ].queue === type ) ) {\n\n\t\t\t\t\ttimers[ index ].anim.stop( gotoEnd );\n\t\t\t\t\tdequeue = false;\n\t\t\t\t\ttimers.splice( index, 1 );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Start the next in the queue if the last step wasn't forced.\n\t\t\t// Timers currently will call their complete callbacks, which\n\t\t\t// will dequeue but only if they were gotoEnd.\n\t\t\tif ( dequeue || !gotoEnd ) {\n\t\t\t\tjQuery.dequeue( this, type );\n\t\t\t}\n\t\t} );\n\t},\n\tfinish: function( type ) {\n\t\tif ( type !== false ) {\n\t\t\ttype = type || \"fx\";\n\t\t}\n\t\treturn this.each( function() {\n\t\t\tvar index,\n\t\t\t\tdata = dataPriv.get( this ),\n\t\t\t\tqueue = data[ type + \"queue\" ],\n\t\t\t\thooks = data[ type + \"queueHooks\" ],\n\t\t\t\ttimers = jQuery.timers,\n\t\t\t\tlength = queue ? queue.length : 0;\n\n\t\t\t// Enable finishing flag on private data\n\t\t\tdata.finish = true;\n\n\t\t\t// Empty the queue first\n\t\t\tjQuery.queue( this, type, [] );\n\n\t\t\tif ( hooks && hooks.stop ) {\n\t\t\t\thooks.stop.call( this, true );\n\t\t\t}\n\n\t\t\t// Look for any active animations, and finish them\n\t\t\tfor ( index = timers.length; index--; ) {\n\t\t\t\tif ( timers[ index ].elem === this && timers[ index ].queue === type ) {\n\t\t\t\t\ttimers[ index ].anim.stop( true );\n\t\t\t\t\ttimers.splice( index, 1 );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Look for any animations in the old queue and finish them\n\t\t\tfor ( index = 0; index < length; index++ ) {\n\t\t\t\tif ( queue[ index ] && queue[ index ].finish ) {\n\t\t\t\t\tqueue[ index ].finish.call( this );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Turn off finishing flag\n\t\t\tdelete data.finish;\n\t\t} );\n\t}\n} );\n\njQuery.each( [ \"toggle\", \"show\", \"hide\" ], function( i, name ) {\n\tvar cssFn = jQuery.fn[ name ];\n\tjQuery.fn[ name ] = function( speed, easing, callback ) {\n\t\treturn speed == null || typeof speed === \"boolean\" ?\n\t\t\tcssFn.apply( this, arguments ) :\n\t\t\tthis.animate( genFx( name, true ), speed, easing, callback );\n\t};\n} );\n\n// Generate shortcuts for custom animations\njQuery.each( {\n\tslideDown: genFx( \"show\" ),\n\tslideUp: genFx( \"hide\" ),\n\tslideToggle: genFx( \"toggle\" ),\n\tfadeIn: { opacity: \"show\" },\n\tfadeOut: { opacity: \"hide\" },\n\tfadeToggle: { opacity: \"toggle\" }\n}, function( name, props ) {\n\tjQuery.fn[ name ] = function( speed, easing, callback ) {\n\t\treturn this.animate( props, speed, easing, callback );\n\t};\n} );\n\njQuery.timers = [];\njQuery.fx.tick = function() {\n\tvar timer,\n\t\ti = 0,\n\t\ttimers = jQuery.timers;\n\n\tfxNow = jQuery.now();\n\n\tfor ( ; i < timers.length; i++ ) {\n\t\ttimer = timers[ i ];\n\n\t\t// Checks the timer has not already been removed\n\t\tif ( !timer() && timers[ i ] === timer ) {\n\t\t\ttimers.splice( i--, 1 );\n\t\t}\n\t}\n\n\tif ( !timers.length ) {\n\t\tjQuery.fx.stop();\n\t}\n\tfxNow = undefined;\n};\n\njQuery.fx.timer = function( timer ) {\n\tjQuery.timers.push( timer );\n\tif ( timer() ) {\n\t\tjQuery.fx.start();\n\t} else {\n\t\tjQuery.timers.pop();\n\t}\n};\n\njQuery.fx.interval = 13;\njQuery.fx.start = function() {\n\tif ( !timerId ) {\n\t\ttimerId = window.requestAnimationFrame ?\n\t\t\twindow.requestAnimationFrame( raf ) :\n\t\t\twindow.setInterval( jQuery.fx.tick, jQuery.fx.interval );\n\t}\n};\n\njQuery.fx.stop = function() {\n\tif ( window.cancelAnimationFrame ) {\n\t\twindow.cancelAnimationFrame( timerId );\n\t} else {\n\t\twindow.clearInterval( timerId );\n\t}\n\n\ttimerId = null;\n};\n\njQuery.fx.speeds = {\n\tslow: 600,\n\tfast: 200,\n\n\t// Default speed\n\t_default: 400\n};\n\n\n// Based off of the plugin by Clint Helfers, with permission.\n// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/\njQuery.fn.delay = function( time, type ) {\n\ttime = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;\n\ttype = type || \"fx\";\n\n\treturn this.queue( type, function( next, hooks ) {\n\t\tvar timeout = window.setTimeout( next, time );\n\t\thooks.stop = function() {\n\t\t\twindow.clearTimeout( timeout );\n\t\t};\n\t} );\n};\n\n\n( function() {\n\tvar input = document.createElement( \"input\" ),\n\t\tselect = document.createElement( \"select\" ),\n\t\topt = select.appendChild( document.createElement( \"option\" ) );\n\n\tinput.type = \"checkbox\";\n\n\t// Support: Android <=4.3 only\n\t// Default value for a checkbox should be \"on\"\n\tsupport.checkOn = input.value !== \"\";\n\n\t// Support: IE <=11 only\n\t// Must access selectedIndex to make default options select\n\tsupport.optSelected = opt.selected;\n\n\t// Support: IE <=11 only\n\t// An input loses its value after becoming a radio\n\tinput = document.createElement( \"input\" );\n\tinput.value = \"t\";\n\tinput.type = \"radio\";\n\tsupport.radioValue = input.value === \"t\";\n} )();\n\n\nvar boolHook,\n\tattrHandle = jQuery.expr.attrHandle;\n\njQuery.fn.extend( {\n\tattr: function( name, value ) {\n\t\treturn access( this, jQuery.attr, name, value, arguments.length > 1 );\n\t},\n\n\tremoveAttr: function( name ) {\n\t\treturn this.each( function() {\n\t\t\tjQuery.removeAttr( this, name );\n\t\t} );\n\t}\n} );\n\njQuery.extend( {\n\tattr: function( elem, name, value ) {\n\t\tvar ret, hooks,\n\t\t\tnType = elem.nodeType;\n\n\t\t// Don't get/set attributes on text, comment and attribute nodes\n\t\tif ( nType === 3 || nType === 8 || nType === 2 ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Fallback to prop when attributes are not supported\n\t\tif ( typeof elem.getAttribute === \"undefined\" ) {\n\t\t\treturn jQuery.prop( elem, name, value );\n\t\t}\n\n\t\t// Attribute hooks are determined by the lowercase version\n\t\t// Grab necessary hook if one is defined\n\t\tif ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {\n\t\t\thooks = jQuery.attrHooks[ name.toLowerCase() ] ||\n\t\t\t\t( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );\n\t\t}\n\n\t\tif ( value !== undefined ) {\n\t\t\tif ( value === null ) {\n\t\t\t\tjQuery.removeAttr( elem, name );\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( hooks && \"set\" in hooks &&\n\t\t\t\t( ret = hooks.set( elem, value, name ) ) !== undefined ) {\n\t\t\t\treturn ret;\n\t\t\t}\n\n\t\t\telem.setAttribute( name, value + \"\" );\n\t\t\treturn value;\n\t\t}\n\n\t\tif ( hooks && \"get\" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {\n\t\t\treturn ret;\n\t\t}\n\n\t\tret = jQuery.find.attr( elem, name );\n\n\t\t// Non-existent attributes return null, we normalize to undefined\n\t\treturn ret == null ? undefined : ret;\n\t},\n\n\tattrHooks: {\n\t\ttype: {\n\t\t\tset: function( elem, value ) {\n\t\t\t\tif ( !support.radioValue && value === \"radio\" &&\n\t\t\t\t\tjQuery.nodeName( elem, \"input\" ) ) {\n\t\t\t\t\tvar val = elem.value;\n\t\t\t\t\telem.setAttribute( \"type\", value );\n\t\t\t\t\tif ( val ) {\n\t\t\t\t\t\telem.value = val;\n\t\t\t\t\t}\n\t\t\t\t\treturn value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\tremoveAttr: function( elem, value ) {\n\t\tvar name,\n\t\t\ti = 0,\n\n\t\t\t// Attribute names can contain non-HTML whitespace characters\n\t\t\t// https://html.spec.whatwg.org/multipage/syntax.html#attributes-2\n\t\t\tattrNames = value && value.match( rnothtmlwhite );\n\n\t\tif ( attrNames && elem.nodeType === 1 ) {\n\t\t\twhile ( ( name = attrNames[ i++ ] ) ) {\n\t\t\t\telem.removeAttribute( name );\n\t\t\t}\n\t\t}\n\t}\n} );\n\n// Hooks for boolean attributes\nboolHook = {\n\tset: function( elem, value, name ) {\n\t\tif ( value === false ) {\n\n\t\t\t// Remove boolean attributes when set to false\n\t\t\tjQuery.removeAttr( elem, name );\n\t\t} else {\n\t\t\telem.setAttribute( name, name );\n\t\t}\n\t\treturn name;\n\t}\n};\n\njQuery.each( jQuery.expr.match.bool.source.match( /\\w+/g ), function( i, name ) {\n\tvar getter = attrHandle[ name ] || jQuery.find.attr;\n\n\tattrHandle[ name ] = function( elem, name, isXML ) {\n\t\tvar ret, handle,\n\t\t\tlowercaseName = name.toLowerCase();\n\n\t\tif ( !isXML ) {\n\n\t\t\t// Avoid an infinite loop by temporarily removing this function from the getter\n\t\t\thandle = attrHandle[ lowercaseName ];\n\t\t\tattrHandle[ lowercaseName ] = ret;\n\t\t\tret = getter( elem, name, isXML ) != null ?\n\t\t\t\tlowercaseName :\n\t\t\t\tnull;\n\t\t\tattrHandle[ lowercaseName ] = handle;\n\t\t}\n\t\treturn ret;\n\t};\n} );\n\n\n\n\nvar rfocusable = /^(?:input|select|textarea|button)$/i,\n\trclickable = /^(?:a|area)$/i;\n\njQuery.fn.extend( {\n\tprop: function( name, value ) {\n\t\treturn access( this, jQuery.prop, name, value, arguments.length > 1 );\n\t},\n\n\tremoveProp: function( name ) {\n\t\treturn this.each( function() {\n\t\t\tdelete this[ jQuery.propFix[ name ] || name ];\n\t\t} );\n\t}\n} );\n\njQuery.extend( {\n\tprop: function( elem, name, value ) {\n\t\tvar ret, hooks,\n\t\t\tnType = elem.nodeType;\n\n\t\t// Don't get/set properties on text, comment and attribute nodes\n\t\tif ( nType === 3 || nType === 8 || nType === 2 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {\n\n\t\t\t// Fix name and attach hooks\n\t\t\tname = jQuery.propFix[ name ] || name;\n\t\t\thooks = jQuery.propHooks[ name ];\n\t\t}\n\n\t\tif ( value !== undefined ) {\n\t\t\tif ( hooks && \"set\" in hooks &&\n\t\t\t\t( ret = hooks.set( elem, value, name ) ) !== undefined ) {\n\t\t\t\treturn ret;\n\t\t\t}\n\n\t\t\treturn ( elem[ name ] = value );\n\t\t}\n\n\t\tif ( hooks && \"get\" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {\n\t\t\treturn ret;\n\t\t}\n\n\t\treturn elem[ name ];\n\t},\n\n\tpropHooks: {\n\t\ttabIndex: {\n\t\t\tget: function( elem ) {\n\n\t\t\t\t// Support: IE <=9 - 11 only\n\t\t\t\t// elem.tabIndex doesn't always return the\n\t\t\t\t// correct value when it hasn't been explicitly set\n\t\t\t\t// https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/\n\t\t\t\t// Use proper attribute retrieval(#12072)\n\t\t\t\tvar tabindex = jQuery.find.attr( elem, \"tabindex\" );\n\n\t\t\t\tif ( tabindex ) {\n\t\t\t\t\treturn parseInt( tabindex, 10 );\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\trfocusable.test( elem.nodeName ) ||\n\t\t\t\t\trclickable.test( elem.nodeName ) &&\n\t\t\t\t\telem.href\n\t\t\t\t) {\n\t\t\t\t\treturn 0;\n\t\t\t\t}\n\n\t\t\t\treturn -1;\n\t\t\t}\n\t\t}\n\t},\n\n\tpropFix: {\n\t\t\"for\": \"htmlFor\",\n\t\t\"class\": \"className\"\n\t}\n} );\n\n// Support: IE <=11 only\n// Accessing the selectedIndex property\n// forces the browser to respect setting selected\n// on the option\n// The getter ensures a default option is selected\n// when in an optgroup\n// eslint rule \"no-unused-expressions\" is disabled for this code\n// since it considers such accessions noop\nif ( !support.optSelected ) {\n\tjQuery.propHooks.selected = {\n\t\tget: function( elem ) {\n\n\t\t\t/* eslint no-unused-expressions: \"off\" */\n\n\t\t\tvar parent = elem.parentNode;\n\t\t\tif ( parent && parent.parentNode ) {\n\t\t\t\tparent.parentNode.selectedIndex;\n\t\t\t}\n\t\t\treturn null;\n\t\t},\n\t\tset: function( elem ) {\n\n\t\t\t/* eslint no-unused-expressions: \"off\" */\n\n\t\t\tvar parent = elem.parentNode;\n\t\t\tif ( parent ) {\n\t\t\t\tparent.selectedIndex;\n\n\t\t\t\tif ( parent.parentNode ) {\n\t\t\t\t\tparent.parentNode.selectedIndex;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n}\n\njQuery.each( [\n\t\"tabIndex\",\n\t\"readOnly\",\n\t\"maxLength\",\n\t\"cellSpacing\",\n\t\"cellPadding\",\n\t\"rowSpan\",\n\t\"colSpan\",\n\t\"useMap\",\n\t\"frameBorder\",\n\t\"contentEditable\"\n], function() {\n\tjQuery.propFix[ this.toLowerCase() ] = this;\n} );\n\n\n\n\n\t// Strip and collapse whitespace according to HTML spec\n\t// https://html.spec.whatwg.org/multipage/infrastructure.html#strip-and-collapse-whitespace\n\tfunction stripAndCollapse( value ) {\n\t\tvar tokens = value.match( rnothtmlwhite ) || [];\n\t\treturn tokens.join( \" \" );\n\t}\n\n\nfunction getClass( elem ) {\n\treturn elem.getAttribute && elem.getAttribute( \"class\" ) || \"\";\n}\n\njQuery.fn.extend( {\n\taddClass: function( value ) {\n\t\tvar classes, elem, cur, curValue, clazz, j, finalValue,\n\t\t\ti = 0;\n\n\t\tif ( jQuery.isFunction( value ) ) {\n\t\t\treturn this.each( function( j ) {\n\t\t\t\tjQuery( this ).addClass( value.call( this, j, getClass( this ) ) );\n\t\t\t} );\n\t\t}\n\n\t\tif ( typeof value === \"string\" && value ) {\n\t\t\tclasses = value.match( rnothtmlwhite ) || [];\n\n\t\t\twhile ( ( elem = this[ i++ ] ) ) {\n\t\t\t\tcurValue = getClass( elem );\n\t\t\t\tcur = elem.nodeType === 1 && ( \" \" + stripAndCollapse( curValue ) + \" \" );\n\n\t\t\t\tif ( cur ) {\n\t\t\t\t\tj = 0;\n\t\t\t\t\twhile ( ( clazz = classes[ j++ ] ) ) {\n\t\t\t\t\t\tif ( cur.indexOf( \" \" + clazz + \" \" ) < 0 ) {\n\t\t\t\t\t\t\tcur += clazz + \" \";\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Only assign if different to avoid unneeded rendering.\n\t\t\t\t\tfinalValue = stripAndCollapse( cur );\n\t\t\t\t\tif ( curValue !== finalValue ) {\n\t\t\t\t\t\telem.setAttribute( \"class\", finalValue );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t},\n\n\tremoveClass: function( value ) {\n\t\tvar classes, elem, cur, curValue, clazz, j, finalValue,\n\t\t\ti = 0;\n\n\t\tif ( jQuery.isFunction( value ) ) {\n\t\t\treturn this.each( function( j ) {\n\t\t\t\tjQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );\n\t\t\t} );\n\t\t}\n\n\t\tif ( !arguments.length ) {\n\t\t\treturn this.attr( \"class\", \"\" );\n\t\t}\n\n\t\tif ( typeof value === \"string\" && value ) {\n\t\t\tclasses = value.match( rnothtmlwhite ) || [];\n\n\t\t\twhile ( ( elem = this[ i++ ] ) ) {\n\t\t\t\tcurValue = getClass( elem );\n\n\t\t\t\t// This expression is here for better compressibility (see addClass)\n\t\t\t\tcur = elem.nodeType === 1 && ( \" \" + stripAndCollapse( curValue ) + \" \" );\n\n\t\t\t\tif ( cur ) {\n\t\t\t\t\tj = 0;\n\t\t\t\t\twhile ( ( clazz = classes[ j++ ] ) ) {\n\n\t\t\t\t\t\t// Remove *all* instances\n\t\t\t\t\t\twhile ( cur.indexOf( \" \" + clazz + \" \" ) > -1 ) {\n\t\t\t\t\t\t\tcur = cur.replace( \" \" + clazz + \" \", \" \" );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Only assign if different to avoid unneeded rendering.\n\t\t\t\t\tfinalValue = stripAndCollapse( cur );\n\t\t\t\t\tif ( curValue !== finalValue ) {\n\t\t\t\t\t\telem.setAttribute( \"class\", finalValue );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t},\n\n\ttoggleClass: function( value, stateVal ) {\n\t\tvar type = typeof value;\n\n\t\tif ( typeof stateVal === \"boolean\" && type === \"string\" ) {\n\t\t\treturn stateVal ? this.addClass( value ) : this.removeClass( value );\n\t\t}\n\n\t\tif ( jQuery.isFunction( value ) ) {\n\t\t\treturn this.each( function( i ) {\n\t\t\t\tjQuery( this ).toggleClass(\n\t\t\t\t\tvalue.call( this, i, getClass( this ), stateVal ),\n\t\t\t\t\tstateVal\n\t\t\t\t);\n\t\t\t} );\n\t\t}\n\n\t\treturn this.each( function() {\n\t\t\tvar className, i, self, classNames;\n\n\t\t\tif ( type === \"string\" ) {\n\n\t\t\t\t// Toggle individual class names\n\t\t\t\ti = 0;\n\t\t\t\tself = jQuery( this );\n\t\t\t\tclassNames = value.match( rnothtmlwhite ) || [];\n\n\t\t\t\twhile ( ( className = classNames[ i++ ] ) ) {\n\n\t\t\t\t\t// Check each className given, space separated list\n\t\t\t\t\tif ( self.hasClass( className ) ) {\n\t\t\t\t\t\tself.removeClass( className );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tself.addClass( className );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t// Toggle whole class name\n\t\t\t} else if ( value === undefined || type === \"boolean\" ) {\n\t\t\t\tclassName = getClass( this );\n\t\t\t\tif ( className ) {\n\n\t\t\t\t\t// Store className if set\n\t\t\t\t\tdataPriv.set( this, \"__className__\", className );\n\t\t\t\t}\n\n\t\t\t\t// If the element has a class name or if we're passed `false`,\n\t\t\t\t// then remove the whole classname (if there was one, the above saved it).\n\t\t\t\t// Otherwise bring back whatever was previously saved (if anything),\n\t\t\t\t// falling back to the empty string if nothing was stored.\n\t\t\t\tif ( this.setAttribute ) {\n\t\t\t\t\tthis.setAttribute( \"class\",\n\t\t\t\t\t\tclassName || value === false ?\n\t\t\t\t\t\t\"\" :\n\t\t\t\t\t\tdataPriv.get( this, \"__className__\" ) || \"\"\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\t},\n\n\thasClass: function( selector ) {\n\t\tvar className, elem,\n\t\t\ti = 0;\n\n\t\tclassName = \" \" + selector + \" \";\n\t\twhile ( ( elem = this[ i++ ] ) ) {\n\t\t\tif ( elem.nodeType === 1 &&\n\t\t\t\t( \" \" + stripAndCollapse( getClass( elem ) ) + \" \" ).indexOf( className ) > -1 ) {\n\t\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t}\n} );\n\n\n\n\nvar rreturn = /\\r/g;\n\njQuery.fn.extend( {\n\tval: function( value ) {\n\t\tvar hooks, ret, isFunction,\n\t\t\telem = this[ 0 ];\n\n\t\tif ( !arguments.length ) {\n\t\t\tif ( elem ) {\n\t\t\t\thooks = jQuery.valHooks[ elem.type ] ||\n\t\t\t\t\tjQuery.valHooks[ elem.nodeName.toLowerCase() ];\n\n\t\t\t\tif ( hooks &&\n\t\t\t\t\t\"get\" in hooks &&\n\t\t\t\t\t( ret = hooks.get( elem, \"value\" ) ) !== undefined\n\t\t\t\t) {\n\t\t\t\t\treturn ret;\n\t\t\t\t}\n\n\t\t\t\tret = elem.value;\n\n\t\t\t\t// Handle most common string cases\n\t\t\t\tif ( typeof ret === \"string\" ) {\n\t\t\t\t\treturn ret.replace( rreturn, \"\" );\n\t\t\t\t}\n\n\t\t\t\t// Handle cases where value is null/undef or number\n\t\t\t\treturn ret == null ? \"\" : ret;\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\tisFunction = jQuery.isFunction( value );\n\n\t\treturn this.each( function( i ) {\n\t\t\tvar val;\n\n\t\t\tif ( this.nodeType !== 1 ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( isFunction ) {\n\t\t\t\tval = value.call( this, i, jQuery( this ).val() );\n\t\t\t} else {\n\t\t\t\tval = value;\n\t\t\t}\n\n\t\t\t// Treat null/undefined as \"\"; convert numbers to string\n\t\t\tif ( val == null ) {\n\t\t\t\tval = \"\";\n\n\t\t\t} else if ( typeof val === \"number\" ) {\n\t\t\t\tval += \"\";\n\n\t\t\t} else if ( jQuery.isArray( val ) ) {\n\t\t\t\tval = jQuery.map( val, function( value ) {\n\t\t\t\t\treturn value == null ? \"\" : value + \"\";\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\thooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];\n\n\t\t\t// If set returns undefined, fall back to normal setting\n\t\t\tif ( !hooks || !( \"set\" in hooks ) || hooks.set( this, val, \"value\" ) === undefined ) {\n\t\t\t\tthis.value = val;\n\t\t\t}\n\t\t} );\n\t}\n} );\n\njQuery.extend( {\n\tvalHooks: {\n\t\toption: {\n\t\t\tget: function( elem ) {\n\n\t\t\t\tvar val = jQuery.find.attr( elem, \"value\" );\n\t\t\t\treturn val != null ?\n\t\t\t\t\tval :\n\n\t\t\t\t\t// Support: IE <=10 - 11 only\n\t\t\t\t\t// option.text throws exceptions (#14686, #14858)\n\t\t\t\t\t// Strip and collapse whitespace\n\t\t\t\t\t// https://html.spec.whatwg.org/#strip-and-collapse-whitespace\n\t\t\t\t\tstripAndCollapse( jQuery.text( elem ) );\n\t\t\t}\n\t\t},\n\t\tselect: {\n\t\t\tget: function( elem ) {\n\t\t\t\tvar value, option, i,\n\t\t\t\t\toptions = elem.options,\n\t\t\t\t\tindex = elem.selectedIndex,\n\t\t\t\t\tone = elem.type === \"select-one\",\n\t\t\t\t\tvalues = one ? null : [],\n\t\t\t\t\tmax = one ? index + 1 : options.length;\n\n\t\t\t\tif ( index < 0 ) {\n\t\t\t\t\ti = max;\n\n\t\t\t\t} else {\n\t\t\t\t\ti = one ? index : 0;\n\t\t\t\t}\n\n\t\t\t\t// Loop through all the selected options\n\t\t\t\tfor ( ; i < max; i++ ) {\n\t\t\t\t\toption = options[ i ];\n\n\t\t\t\t\t// Support: IE <=9 only\n\t\t\t\t\t// IE8-9 doesn't update selected after form reset (#2551)\n\t\t\t\t\tif ( ( option.selected || i === index ) &&\n\n\t\t\t\t\t\t\t// Don't return options that are disabled or in a disabled optgroup\n\t\t\t\t\t\t\t!option.disabled &&\n\t\t\t\t\t\t\t( !option.parentNode.disabled ||\n\t\t\t\t\t\t\t\t!jQuery.nodeName( option.parentNode, \"optgroup\" ) ) ) {\n\n\t\t\t\t\t\t// Get the specific value for the option\n\t\t\t\t\t\tvalue = jQuery( option ).val();\n\n\t\t\t\t\t\t// We don't need an array for one selects\n\t\t\t\t\t\tif ( one ) {\n\t\t\t\t\t\t\treturn value;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Multi-Selects return an array\n\t\t\t\t\t\tvalues.push( value );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\treturn values;\n\t\t\t},\n\n\t\t\tset: function( elem, value ) {\n\t\t\t\tvar optionSet, option,\n\t\t\t\t\toptions = elem.options,\n\t\t\t\t\tvalues = jQuery.makeArray( value ),\n\t\t\t\t\ti = options.length;\n\n\t\t\t\twhile ( i-- ) {\n\t\t\t\t\toption = options[ i ];\n\n\t\t\t\t\t/* eslint-disable no-cond-assign */\n\n\t\t\t\t\tif ( option.selected =\n\t\t\t\t\t\tjQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1\n\t\t\t\t\t) {\n\t\t\t\t\t\toptionSet = true;\n\t\t\t\t\t}\n\n\t\t\t\t\t/* eslint-enable no-cond-assign */\n\t\t\t\t}\n\n\t\t\t\t// Force browsers to behave consistently when non-matching value is set\n\t\t\t\tif ( !optionSet ) {\n\t\t\t\t\telem.selectedIndex = -1;\n\t\t\t\t}\n\t\t\t\treturn values;\n\t\t\t}\n\t\t}\n\t}\n} );\n\n// Radios and checkboxes getter/setter\njQuery.each( [ \"radio\", \"checkbox\" ], function() {\n\tjQuery.valHooks[ this ] = {\n\t\tset: function( elem, value ) {\n\t\t\tif ( jQuery.isArray( value ) ) {\n\t\t\t\treturn ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );\n\t\t\t}\n\t\t}\n\t};\n\tif ( !support.checkOn ) {\n\t\tjQuery.valHooks[ this ].get = function( elem ) {\n\t\t\treturn elem.getAttribute( \"value\" ) === null ? \"on\" : elem.value;\n\t\t};\n\t}\n} );\n\n\n\n\n// Return jQuery for attributes-only inclusion\n\n\nvar rfocusMorph = /^(?:focusinfocus|focusoutblur)$/;\n\njQuery.extend( jQuery.event, {\n\n\ttrigger: function( event, data, elem, onlyHandlers ) {\n\n\t\tvar i, cur, tmp, bubbleType, ontype, handle, special,\n\t\t\teventPath = [ elem || document ],\n\t\t\ttype = hasOwn.call( event, \"type\" ) ? event.type : event,\n\t\t\tnamespaces = hasOwn.call( event, \"namespace\" ) ? event.namespace.split( \".\" ) : [];\n\n\t\tcur = tmp = elem = elem || document;\n\n\t\t// Don't do events on text and comment nodes\n\t\tif ( elem.nodeType === 3 || elem.nodeType === 8 ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// focus/blur morphs to focusin/out; ensure we're not firing them right now\n\t\tif ( rfocusMorph.test( type + jQuery.event.triggered ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( type.indexOf( \".\" ) > -1 ) {\n\n\t\t\t// Namespaced trigger; create a regexp to match event type in handle()\n\t\t\tnamespaces = type.split( \".\" );\n\t\t\ttype = namespaces.shift();\n\t\t\tnamespaces.sort();\n\t\t}\n\t\tontype = type.indexOf( \":\" ) < 0 && \"on\" + type;\n\n\t\t// Caller can pass in a jQuery.Event object, Object, or just an event type string\n\t\tevent = event[ jQuery.expando ] ?\n\t\t\tevent :\n\t\t\tnew jQuery.Event( type, typeof event === \"object\" && event );\n\n\t\t// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)\n\t\tevent.isTrigger = onlyHandlers ? 2 : 3;\n\t\tevent.namespace = namespaces.join( \".\" );\n\t\tevent.rnamespace = event.namespace ?\n\t\t\tnew RegExp( \"(^|\\\\.)\" + namespaces.join( \"\\\\.(?:.*\\\\.|)\" ) + \"(\\\\.|$)\" ) :\n\t\t\tnull;\n\n\t\t// Clean up the event in case it is being reused\n\t\tevent.result = undefined;\n\t\tif ( !event.target ) {\n\t\t\tevent.target = elem;\n\t\t}\n\n\t\t// Clone any incoming data and prepend the event, creating the handler arg list\n\t\tdata = data == null ?\n\t\t\t[ event ] :\n\t\t\tjQuery.makeArray( data, [ event ] );\n\n\t\t// Allow special events to draw outside the lines\n\t\tspecial = jQuery.event.special[ type ] || {};\n\t\tif ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Determine event propagation path in advance, per W3C events spec (#9951)\n\t\t// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)\n\t\tif ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {\n\n\t\t\tbubbleType = special.delegateType || type;\n\t\t\tif ( !rfocusMorph.test( bubbleType + type ) ) {\n\t\t\t\tcur = cur.parentNode;\n\t\t\t}\n\t\t\tfor ( ; cur; cur = cur.parentNode ) {\n\t\t\t\teventPath.push( cur );\n\t\t\t\ttmp = cur;\n\t\t\t}\n\n\t\t\t// Only add window if we got to document (e.g., not plain obj or detached DOM)\n\t\t\tif ( tmp === ( elem.ownerDocument || document ) ) {\n\t\t\t\teventPath.push( tmp.defaultView || tmp.parentWindow || window );\n\t\t\t}\n\t\t}\n\n\t\t// Fire handlers on the event path\n\t\ti = 0;\n\t\twhile ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {\n\n\t\t\tevent.type = i > 1 ?\n\t\t\t\tbubbleType :\n\t\t\t\tspecial.bindType || type;\n\n\t\t\t// jQuery handler\n\t\t\thandle = ( dataPriv.get( cur, \"events\" ) || {} )[ event.type ] &&\n\t\t\t\tdataPriv.get( cur, \"handle\" );\n\t\t\tif ( handle ) {\n\t\t\t\thandle.apply( cur, data );\n\t\t\t}\n\n\t\t\t// Native handler\n\t\t\thandle = ontype && cur[ ontype ];\n\t\t\tif ( handle && handle.apply && acceptData( cur ) ) {\n\t\t\t\tevent.result = handle.apply( cur, data );\n\t\t\t\tif ( event.result === false ) {\n\t\t\t\t\tevent.preventDefault();\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tevent.type = type;\n\n\t\t// If nobody prevented the default action, do it now\n\t\tif ( !onlyHandlers && !event.isDefaultPrevented() ) {\n\n\t\t\tif ( ( !special._default ||\n\t\t\t\tspecial._default.apply( eventPath.pop(), data ) === false ) &&\n\t\t\t\tacceptData( elem ) ) {\n\n\t\t\t\t// Call a native DOM method on the target with the same name as the event.\n\t\t\t\t// Don't do default actions on window, that's where global variables be (#6170)\n\t\t\t\tif ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {\n\n\t\t\t\t\t// Don't re-trigger an onFOO event when we call its FOO() method\n\t\t\t\t\ttmp = elem[ ontype ];\n\n\t\t\t\t\tif ( tmp ) {\n\t\t\t\t\t\telem[ ontype ] = null;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Prevent re-triggering of the same event, since we already bubbled it above\n\t\t\t\t\tjQuery.event.triggered = type;\n\t\t\t\t\telem[ type ]();\n\t\t\t\t\tjQuery.event.triggered = undefined;\n\n\t\t\t\t\tif ( tmp ) {\n\t\t\t\t\t\telem[ ontype ] = tmp;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn event.result;\n\t},\n\n\t// Piggyback on a donor event to simulate a different one\n\t// Used only for `focus(in | out)` events\n\tsimulate: function( type, elem, event ) {\n\t\tvar e = jQuery.extend(\n\t\t\tnew jQuery.Event(),\n\t\t\tevent,\n\t\t\t{\n\t\t\t\ttype: type,\n\t\t\t\tisSimulated: true\n\t\t\t}\n\t\t);\n\n\t\tjQuery.event.trigger( e, null, elem );\n\t}\n\n} );\n\njQuery.fn.extend( {\n\n\ttrigger: function( type, data ) {\n\t\treturn this.each( function() {\n\t\t\tjQuery.event.trigger( type, data, this );\n\t\t} );\n\t},\n\ttriggerHandler: function( type, data ) {\n\t\tvar elem = this[ 0 ];\n\t\tif ( elem ) {\n\t\t\treturn jQuery.event.trigger( type, data, elem, true );\n\t\t}\n\t}\n} );\n\n\njQuery.each( ( \"blur focus focusin focusout resize scroll click dblclick \" +\n\t\"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave \" +\n\t\"change select submit keydown keypress keyup contextmenu\" ).split( \" \" ),\n\tfunction( i, name ) {\n\n\t// Handle event binding\n\tjQuery.fn[ name ] = function( data, fn ) {\n\t\treturn arguments.length > 0 ?\n\t\t\tthis.on( name, null, data, fn ) :\n\t\t\tthis.trigger( name );\n\t};\n} );\n\njQuery.fn.extend( {\n\thover: function( fnOver, fnOut ) {\n\t\treturn this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );\n\t}\n} );\n\n\n\n\nsupport.focusin = \"onfocusin\" in window;\n\n\n// Support: Firefox <=44\n// Firefox doesn't have focus(in | out) events\n// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787\n//\n// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1\n// focus(in | out) events fire after focus & blur events,\n// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order\n// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857\nif ( !support.focusin ) {\n\tjQuery.each( { focus: \"focusin\", blur: \"focusout\" }, function( orig, fix ) {\n\n\t\t// Attach a single capturing handler on the document while someone wants focusin/focusout\n\t\tvar handler = function( event ) {\n\t\t\tjQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );\n\t\t};\n\n\t\tjQuery.event.special[ fix ] = {\n\t\t\tsetup: function() {\n\t\t\t\tvar doc = this.ownerDocument || this,\n\t\t\t\t\tattaches = dataPriv.access( doc, fix );\n\n\t\t\t\tif ( !attaches ) {\n\t\t\t\t\tdoc.addEventListener( orig, handler, true );\n\t\t\t\t}\n\t\t\t\tdataPriv.access( doc, fix, ( attaches || 0 ) + 1 );\n\t\t\t},\n\t\t\tteardown: function() {\n\t\t\t\tvar doc = this.ownerDocument || this,\n\t\t\t\t\tattaches = dataPriv.access( doc, fix ) - 1;\n\n\t\t\t\tif ( !attaches ) {\n\t\t\t\t\tdoc.removeEventListener( orig, handler, true );\n\t\t\t\t\tdataPriv.remove( doc, fix );\n\n\t\t\t\t} else {\n\t\t\t\t\tdataPriv.access( doc, fix, attaches );\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t} );\n}\nvar location = window.location;\n\nvar nonce = jQuery.now();\n\nvar rquery = ( /\\?/ );\n\n\n\n// Cross-browser xml parsing\njQuery.parseXML = function( data ) {\n\tvar xml;\n\tif ( !data || typeof data !== \"string\" ) {\n\t\treturn null;\n\t}\n\n\t// Support: IE 9 - 11 only\n\t// IE throws on parseFromString with invalid input.\n\ttry {\n\t\txml = ( new window.DOMParser() ).parseFromString( data, \"text/xml\" );\n\t} catch ( e ) {\n\t\txml = undefined;\n\t}\n\n\tif ( !xml || xml.getElementsByTagName( \"parsererror\" ).length ) {\n\t\tjQuery.error( \"Invalid XML: \" + data );\n\t}\n\treturn xml;\n};\n\n\nvar\n\trbracket = /\\[\\]$/,\n\trCRLF = /\\r?\\n/g,\n\trsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,\n\trsubmittable = /^(?:input|select|textarea|keygen)/i;\n\nfunction buildParams( prefix, obj, traditional, add ) {\n\tvar name;\n\n\tif ( jQuery.isArray( obj ) ) {\n\n\t\t// Serialize array item.\n\t\tjQuery.each( obj, function( i, v ) {\n\t\t\tif ( traditional || rbracket.test( prefix ) ) {\n\n\t\t\t\t// Treat each array item as a scalar.\n\t\t\t\tadd( prefix, v );\n\n\t\t\t} else {\n\n\t\t\t\t// Item is non-scalar (array or object), encode its numeric index.\n\t\t\t\tbuildParams(\n\t\t\t\t\tprefix + \"[\" + ( typeof v === \"object\" && v != null ? i : \"\" ) + \"]\",\n\t\t\t\t\tv,\n\t\t\t\t\ttraditional,\n\t\t\t\t\tadd\n\t\t\t\t);\n\t\t\t}\n\t\t} );\n\n\t} else if ( !traditional && jQuery.type( obj ) === \"object\" ) {\n\n\t\t// Serialize object item.\n\t\tfor ( name in obj ) {\n\t\t\tbuildParams( prefix + \"[\" + name + \"]\", obj[ name ], traditional, add );\n\t\t}\n\n\t} else {\n\n\t\t// Serialize scalar item.\n\t\tadd( prefix, obj );\n\t}\n}\n\n// Serialize an array of form elements or a set of\n// key/values into a query string\njQuery.param = function( a, traditional ) {\n\tvar prefix,\n\t\ts = [],\n\t\tadd = function( key, valueOrFunction ) {\n\n\t\t\t// If value is a function, invoke it and use its return value\n\t\t\tvar value = jQuery.isFunction( valueOrFunction ) ?\n\t\t\t\tvalueOrFunction() :\n\t\t\t\tvalueOrFunction;\n\n\t\t\ts[ s.length ] = encodeURIComponent( key ) + \"=\" +\n\t\t\t\tencodeURIComponent( value == null ? \"\" : value );\n\t\t};\n\n\t// If an array was passed in, assume that it is an array of form elements.\n\tif ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {\n\n\t\t// Serialize the form elements\n\t\tjQuery.each( a, function() {\n\t\t\tadd( this.name, this.value );\n\t\t} );\n\n\t} else {\n\n\t\t// If traditional, encode the \"old\" way (the way 1.3.2 or older\n\t\t// did it), otherwise encode params recursively.\n\t\tfor ( prefix in a ) {\n\t\t\tbuildParams( prefix, a[ prefix ], traditional, add );\n\t\t}\n\t}\n\n\t// Return the resulting serialization\n\treturn s.join( \"&\" );\n};\n\njQuery.fn.extend( {\n\tserialize: function() {\n\t\treturn jQuery.param( this.serializeArray() );\n\t},\n\tserializeArray: function() {\n\t\treturn this.map( function() {\n\n\t\t\t// Can add propHook for \"elements\" to filter or add form elements\n\t\t\tvar elements = jQuery.prop( this, \"elements\" );\n\t\t\treturn elements ? jQuery.makeArray( elements ) : this;\n\t\t} )\n\t\t.filter( function() {\n\t\t\tvar type = this.type;\n\n\t\t\t// Use .is( \":disabled\" ) so that fieldset[disabled] works\n\t\t\treturn this.name && !jQuery( this ).is( \":disabled\" ) &&\n\t\t\t\trsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&\n\t\t\t\t( this.checked || !rcheckableType.test( type ) );\n\t\t} )\n\t\t.map( function( i, elem ) {\n\t\t\tvar val = jQuery( this ).val();\n\n\t\t\tif ( val == null ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\tif ( jQuery.isArray( val ) ) {\n\t\t\t\treturn jQuery.map( val, function( val ) {\n\t\t\t\t\treturn { name: elem.name, value: val.replace( rCRLF, \"\\r\\n\" ) };\n\t\t\t\t} );\n\t\t\t}\n\n\t\t\treturn { name: elem.name, value: val.replace( rCRLF, \"\\r\\n\" ) };\n\t\t} ).get();\n\t}\n} );\n\n\nvar\n\tr20 = /%20/g,\n\trhash = /#.*$/,\n\trantiCache = /([?&])_=[^&]*/,\n\trheaders = /^(.*?):[ \\t]*([^\\r\\n]*)$/mg,\n\n\t// #7653, #8125, #8152: local protocol detection\n\trlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,\n\trnoContent = /^(?:GET|HEAD)$/,\n\trprotocol = /^\\/\\//,\n\n\t/* Prefilters\n\t * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)\n\t * 2) These are called:\n\t *    - BEFORE asking for a transport\n\t *    - AFTER param serialization (s.data is a string if s.processData is true)\n\t * 3) key is the dataType\n\t * 4) the catchall symbol \"*\" can be used\n\t * 5) execution will start with transport dataType and THEN continue down to \"*\" if needed\n\t */\n\tprefilters = {},\n\n\t/* Transports bindings\n\t * 1) key is the dataType\n\t * 2) the catchall symbol \"*\" can be used\n\t * 3) selection will start with transport dataType and THEN go to \"*\" if needed\n\t */\n\ttransports = {},\n\n\t// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression\n\tallTypes = \"*/\".concat( \"*\" ),\n\n\t// Anchor tag for parsing the document origin\n\toriginAnchor = document.createElement( \"a\" );\n\toriginAnchor.href = location.href;\n\n// Base \"constructor\" for jQuery.ajaxPrefilter and jQuery.ajaxTransport\nfunction addToPrefiltersOrTransports( structure ) {\n\n\t// dataTypeExpression is optional and defaults to \"*\"\n\treturn function( dataTypeExpression, func ) {\n\n\t\tif ( typeof dataTypeExpression !== \"string\" ) {\n\t\t\tfunc = dataTypeExpression;\n\t\t\tdataTypeExpression = \"*\";\n\t\t}\n\n\t\tvar dataType,\n\t\t\ti = 0,\n\t\t\tdataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];\n\n\t\tif ( jQuery.isFunction( func ) ) {\n\n\t\t\t// For each dataType in the dataTypeExpression\n\t\t\twhile ( ( dataType = dataTypes[ i++ ] ) ) {\n\n\t\t\t\t// Prepend if requested\n\t\t\t\tif ( dataType[ 0 ] === \"+\" ) {\n\t\t\t\t\tdataType = dataType.slice( 1 ) || \"*\";\n\t\t\t\t\t( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );\n\n\t\t\t\t// Otherwise append\n\t\t\t\t} else {\n\t\t\t\t\t( structure[ dataType ] = structure[ dataType ] || [] ).push( func );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n}\n\n// Base inspection function for prefilters and transports\nfunction inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {\n\n\tvar inspected = {},\n\t\tseekingTransport = ( structure === transports );\n\n\tfunction inspect( dataType ) {\n\t\tvar selected;\n\t\tinspected[ dataType ] = true;\n\t\tjQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {\n\t\t\tvar dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );\n\t\t\tif ( typeof dataTypeOrTransport === \"string\" &&\n\t\t\t\t!seekingTransport && !inspected[ dataTypeOrTransport ] ) {\n\n\t\t\t\toptions.dataTypes.unshift( dataTypeOrTransport );\n\t\t\t\tinspect( dataTypeOrTransport );\n\t\t\t\treturn false;\n\t\t\t} else if ( seekingTransport ) {\n\t\t\t\treturn !( selected = dataTypeOrTransport );\n\t\t\t}\n\t\t} );\n\t\treturn selected;\n\t}\n\n\treturn inspect( options.dataTypes[ 0 ] ) || !inspected[ \"*\" ] && inspect( \"*\" );\n}\n\n// A special extend for ajax options\n// that takes \"flat\" options (not to be deep extended)\n// Fixes #9887\nfunction ajaxExtend( target, src ) {\n\tvar key, deep,\n\t\tflatOptions = jQuery.ajaxSettings.flatOptions || {};\n\n\tfor ( key in src ) {\n\t\tif ( src[ key ] !== undefined ) {\n\t\t\t( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];\n\t\t}\n\t}\n\tif ( deep ) {\n\t\tjQuery.extend( true, target, deep );\n\t}\n\n\treturn target;\n}\n\n/* Handles responses to an ajax request:\n * - finds the right dataType (mediates between content-type and expected dataType)\n * - returns the corresponding response\n */\nfunction ajaxHandleResponses( s, jqXHR, responses ) {\n\n\tvar ct, type, finalDataType, firstDataType,\n\t\tcontents = s.contents,\n\t\tdataTypes = s.dataTypes;\n\n\t// Remove auto dataType and get content-type in the process\n\twhile ( dataTypes[ 0 ] === \"*\" ) {\n\t\tdataTypes.shift();\n\t\tif ( ct === undefined ) {\n\t\t\tct = s.mimeType || jqXHR.getResponseHeader( \"Content-Type\" );\n\t\t}\n\t}\n\n\t// Check if we're dealing with a known content-type\n\tif ( ct ) {\n\t\tfor ( type in contents ) {\n\t\t\tif ( contents[ type ] && contents[ type ].test( ct ) ) {\n\t\t\t\tdataTypes.unshift( type );\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t}\n\n\t// Check to see if we have a response for the expected dataType\n\tif ( dataTypes[ 0 ] in responses ) {\n\t\tfinalDataType = dataTypes[ 0 ];\n\t} else {\n\n\t\t// Try convertible dataTypes\n\t\tfor ( type in responses ) {\n\t\t\tif ( !dataTypes[ 0 ] || s.converters[ type + \" \" + dataTypes[ 0 ] ] ) {\n\t\t\t\tfinalDataType = type;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tif ( !firstDataType ) {\n\t\t\t\tfirstDataType = type;\n\t\t\t}\n\t\t}\n\n\t\t// Or just use first one\n\t\tfinalDataType = finalDataType || firstDataType;\n\t}\n\n\t// If we found a dataType\n\t// We add the dataType to the list if needed\n\t// and return the corresponding response\n\tif ( finalDataType ) {\n\t\tif ( finalDataType !== dataTypes[ 0 ] ) {\n\t\t\tdataTypes.unshift( finalDataType );\n\t\t}\n\t\treturn responses[ finalDataType ];\n\t}\n}\n\n/* Chain conversions given the request and the original response\n * Also sets the responseXXX fields on the jqXHR instance\n */\nfunction ajaxConvert( s, response, jqXHR, isSuccess ) {\n\tvar conv2, current, conv, tmp, prev,\n\t\tconverters = {},\n\n\t\t// Work with a copy of dataTypes in case we need to modify it for conversion\n\t\tdataTypes = s.dataTypes.slice();\n\n\t// Create converters map with lowercased keys\n\tif ( dataTypes[ 1 ] ) {\n\t\tfor ( conv in s.converters ) {\n\t\t\tconverters[ conv.toLowerCase() ] = s.converters[ conv ];\n\t\t}\n\t}\n\n\tcurrent = dataTypes.shift();\n\n\t// Convert to each sequential dataType\n\twhile ( current ) {\n\n\t\tif ( s.responseFields[ current ] ) {\n\t\t\tjqXHR[ s.responseFields[ current ] ] = response;\n\t\t}\n\n\t\t// Apply the dataFilter if provided\n\t\tif ( !prev && isSuccess && s.dataFilter ) {\n\t\t\tresponse = s.dataFilter( response, s.dataType );\n\t\t}\n\n\t\tprev = current;\n\t\tcurrent = dataTypes.shift();\n\n\t\tif ( current ) {\n\n\t\t\t// There's only work to do if current dataType is non-auto\n\t\t\tif ( current === \"*\" ) {\n\n\t\t\t\tcurrent = prev;\n\n\t\t\t// Convert response if prev dataType is non-auto and differs from current\n\t\t\t} else if ( prev !== \"*\" && prev !== current ) {\n\n\t\t\t\t// Seek a direct converter\n\t\t\t\tconv = converters[ prev + \" \" + current ] || converters[ \"* \" + current ];\n\n\t\t\t\t// If none found, seek a pair\n\t\t\t\tif ( !conv ) {\n\t\t\t\t\tfor ( conv2 in converters ) {\n\n\t\t\t\t\t\t// If conv2 outputs current\n\t\t\t\t\t\ttmp = conv2.split( \" \" );\n\t\t\t\t\t\tif ( tmp[ 1 ] === current ) {\n\n\t\t\t\t\t\t\t// If prev can be converted to accepted input\n\t\t\t\t\t\t\tconv = converters[ prev + \" \" + tmp[ 0 ] ] ||\n\t\t\t\t\t\t\t\tconverters[ \"* \" + tmp[ 0 ] ];\n\t\t\t\t\t\t\tif ( conv ) {\n\n\t\t\t\t\t\t\t\t// Condense equivalence converters\n\t\t\t\t\t\t\t\tif ( conv === true ) {\n\t\t\t\t\t\t\t\t\tconv = converters[ conv2 ];\n\n\t\t\t\t\t\t\t\t// Otherwise, insert the intermediate dataType\n\t\t\t\t\t\t\t\t} else if ( converters[ conv2 ] !== true ) {\n\t\t\t\t\t\t\t\t\tcurrent = tmp[ 0 ];\n\t\t\t\t\t\t\t\t\tdataTypes.unshift( tmp[ 1 ] );\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Apply converter (if not an equivalence)\n\t\t\t\tif ( conv !== true ) {\n\n\t\t\t\t\t// Unless errors are allowed to bubble, catch and return them\n\t\t\t\t\tif ( conv && s.throws ) {\n\t\t\t\t\t\tresponse = conv( response );\n\t\t\t\t\t} else {\n\t\t\t\t\t\ttry {\n\t\t\t\t\t\t\tresponse = conv( response );\n\t\t\t\t\t\t} catch ( e ) {\n\t\t\t\t\t\t\treturn {\n\t\t\t\t\t\t\t\tstate: \"parsererror\",\n\t\t\t\t\t\t\t\terror: conv ? e : \"No conversion from \" + prev + \" to \" + current\n\t\t\t\t\t\t\t};\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn { state: \"success\", data: response };\n}\n\njQuery.extend( {\n\n\t// Counter for holding the number of active queries\n\tactive: 0,\n\n\t// Last-Modified header cache for next request\n\tlastModified: {},\n\tetag: {},\n\n\tajaxSettings: {\n\t\turl: location.href,\n\t\ttype: \"GET\",\n\t\tisLocal: rlocalProtocol.test( location.protocol ),\n\t\tglobal: true,\n\t\tprocessData: true,\n\t\tasync: true,\n\t\tcontentType: \"application/x-www-form-urlencoded; charset=UTF-8\",\n\n\t\t/*\n\t\ttimeout: 0,\n\t\tdata: null,\n\t\tdataType: null,\n\t\tusername: null,\n\t\tpassword: null,\n\t\tcache: null,\n\t\tthrows: false,\n\t\ttraditional: false,\n\t\theaders: {},\n\t\t*/\n\n\t\taccepts: {\n\t\t\t\"*\": allTypes,\n\t\t\ttext: \"text/plain\",\n\t\t\thtml: \"text/html\",\n\t\t\txml: \"application/xml, text/xml\",\n\t\t\tjson: \"application/json, text/javascript\"\n\t\t},\n\n\t\tcontents: {\n\t\t\txml: /\\bxml\\b/,\n\t\t\thtml: /\\bhtml/,\n\t\t\tjson: /\\bjson\\b/\n\t\t},\n\n\t\tresponseFields: {\n\t\t\txml: \"responseXML\",\n\t\t\ttext: \"responseText\",\n\t\t\tjson: \"responseJSON\"\n\t\t},\n\n\t\t// Data converters\n\t\t// Keys separate source (or catchall \"*\") and destination types with a single space\n\t\tconverters: {\n\n\t\t\t// Convert anything to text\n\t\t\t\"* text\": String,\n\n\t\t\t// Text to html (true = no transformation)\n\t\t\t\"text html\": true,\n\n\t\t\t// Evaluate text as a json expression\n\t\t\t\"text json\": JSON.parse,\n\n\t\t\t// Parse text as xml\n\t\t\t\"text xml\": jQuery.parseXML\n\t\t},\n\n\t\t// For options that shouldn't be deep extended:\n\t\t// you can add your own custom options here if\n\t\t// and when you create one that shouldn't be\n\t\t// deep extended (see ajaxExtend)\n\t\tflatOptions: {\n\t\t\turl: true,\n\t\t\tcontext: true\n\t\t}\n\t},\n\n\t// Creates a full fledged settings object into target\n\t// with both ajaxSettings and settings fields.\n\t// If target is omitted, writes into ajaxSettings.\n\tajaxSetup: function( target, settings ) {\n\t\treturn settings ?\n\n\t\t\t// Building a settings object\n\t\t\tajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :\n\n\t\t\t// Extending ajaxSettings\n\t\t\tajaxExtend( jQuery.ajaxSettings, target );\n\t},\n\n\tajaxPrefilter: addToPrefiltersOrTransports( prefilters ),\n\tajaxTransport: addToPrefiltersOrTransports( transports ),\n\n\t// Main method\n\tajax: function( url, options ) {\n\n\t\t// If url is an object, simulate pre-1.5 signature\n\t\tif ( typeof url === \"object\" ) {\n\t\t\toptions = url;\n\t\t\turl = undefined;\n\t\t}\n\n\t\t// Force options to be an object\n\t\toptions = options || {};\n\n\t\tvar transport,\n\n\t\t\t// URL without anti-cache param\n\t\t\tcacheURL,\n\n\t\t\t// Response headers\n\t\t\tresponseHeadersString,\n\t\t\tresponseHeaders,\n\n\t\t\t// timeout handle\n\t\t\ttimeoutTimer,\n\n\t\t\t// Url cleanup var\n\t\t\turlAnchor,\n\n\t\t\t// Request state (becomes false upon send and true upon completion)\n\t\t\tcompleted,\n\n\t\t\t// To know if global events are to be dispatched\n\t\t\tfireGlobals,\n\n\t\t\t// Loop variable\n\t\t\ti,\n\n\t\t\t// uncached part of the url\n\t\t\tuncached,\n\n\t\t\t// Create the final options object\n\t\t\ts = jQuery.ajaxSetup( {}, options ),\n\n\t\t\t// Callbacks context\n\t\t\tcallbackContext = s.context || s,\n\n\t\t\t// Context for global events is callbackContext if it is a DOM node or jQuery collection\n\t\t\tglobalEventContext = s.context &&\n\t\t\t\t( callbackContext.nodeType || callbackContext.jquery ) ?\n\t\t\t\t\tjQuery( callbackContext ) :\n\t\t\t\t\tjQuery.event,\n\n\t\t\t// Deferreds\n\t\t\tdeferred = jQuery.Deferred(),\n\t\t\tcompleteDeferred = jQuery.Callbacks( \"once memory\" ),\n\n\t\t\t// Status-dependent callbacks\n\t\t\tstatusCode = s.statusCode || {},\n\n\t\t\t// Headers (they are sent all at once)\n\t\t\trequestHeaders = {},\n\t\t\trequestHeadersNames = {},\n\n\t\t\t// Default abort message\n\t\t\tstrAbort = \"canceled\",\n\n\t\t\t// Fake xhr\n\t\t\tjqXHR = {\n\t\t\t\treadyState: 0,\n\n\t\t\t\t// Builds headers hashtable if needed\n\t\t\t\tgetResponseHeader: function( key ) {\n\t\t\t\t\tvar match;\n\t\t\t\t\tif ( completed ) {\n\t\t\t\t\t\tif ( !responseHeaders ) {\n\t\t\t\t\t\t\tresponseHeaders = {};\n\t\t\t\t\t\t\twhile ( ( match = rheaders.exec( responseHeadersString ) ) ) {\n\t\t\t\t\t\t\t\tresponseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t\tmatch = responseHeaders[ key.toLowerCase() ];\n\t\t\t\t\t}\n\t\t\t\t\treturn match == null ? null : match;\n\t\t\t\t},\n\n\t\t\t\t// Raw string\n\t\t\t\tgetAllResponseHeaders: function() {\n\t\t\t\t\treturn completed ? responseHeadersString : null;\n\t\t\t\t},\n\n\t\t\t\t// Caches the header\n\t\t\t\tsetRequestHeader: function( name, value ) {\n\t\t\t\t\tif ( completed == null ) {\n\t\t\t\t\t\tname = requestHeadersNames[ name.toLowerCase() ] =\n\t\t\t\t\t\t\trequestHeadersNames[ name.toLowerCase() ] || name;\n\t\t\t\t\t\trequestHeaders[ name ] = value;\n\t\t\t\t\t}\n\t\t\t\t\treturn this;\n\t\t\t\t},\n\n\t\t\t\t// Overrides response content-type header\n\t\t\t\toverrideMimeType: function( type ) {\n\t\t\t\t\tif ( completed == null ) {\n\t\t\t\t\t\ts.mimeType = type;\n\t\t\t\t\t}\n\t\t\t\t\treturn this;\n\t\t\t\t},\n\n\t\t\t\t// Status-dependent callbacks\n\t\t\t\tstatusCode: function( map ) {\n\t\t\t\t\tvar code;\n\t\t\t\t\tif ( map ) {\n\t\t\t\t\t\tif ( completed ) {\n\n\t\t\t\t\t\t\t// Execute the appropriate callbacks\n\t\t\t\t\t\t\tjqXHR.always( map[ jqXHR.status ] );\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t// Lazy-add the new callbacks in a way that preserves old ones\n\t\t\t\t\t\t\tfor ( code in map ) {\n\t\t\t\t\t\t\t\tstatusCode[ code ] = [ statusCode[ code ], map[ code ] ];\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\treturn this;\n\t\t\t\t},\n\n\t\t\t\t// Cancel the request\n\t\t\t\tabort: function( statusText ) {\n\t\t\t\t\tvar finalText = statusText || strAbort;\n\t\t\t\t\tif ( transport ) {\n\t\t\t\t\t\ttransport.abort( finalText );\n\t\t\t\t\t}\n\t\t\t\t\tdone( 0, finalText );\n\t\t\t\t\treturn this;\n\t\t\t\t}\n\t\t\t};\n\n\t\t// Attach deferreds\n\t\tdeferred.promise( jqXHR );\n\n\t\t// Add protocol if not provided (prefilters might expect it)\n\t\t// Handle falsy url in the settings object (#10093: consistency with old signature)\n\t\t// We also use the url parameter if available\n\t\ts.url = ( ( url || s.url || location.href ) + \"\" )\n\t\t\t.replace( rprotocol, location.protocol + \"//\" );\n\n\t\t// Alias method option to type as per ticket #12004\n\t\ts.type = options.method || options.type || s.method || s.type;\n\n\t\t// Extract dataTypes list\n\t\ts.dataTypes = ( s.dataType || \"*\" ).toLowerCase().match( rnothtmlwhite ) || [ \"\" ];\n\n\t\t// A cross-domain request is in order when the origin doesn't match the current origin.\n\t\tif ( s.crossDomain == null ) {\n\t\t\turlAnchor = document.createElement( \"a\" );\n\n\t\t\t// Support: IE <=8 - 11, Edge 12 - 13\n\t\t\t// IE throws exception on accessing the href property if url is malformed,\n\t\t\t// e.g. http://example.com:80x/\n\t\t\ttry {\n\t\t\t\turlAnchor.href = s.url;\n\n\t\t\t\t// Support: IE <=8 - 11 only\n\t\t\t\t// Anchor's host property isn't correctly set when s.url is relative\n\t\t\t\turlAnchor.href = urlAnchor.href;\n\t\t\t\ts.crossDomain = originAnchor.protocol + \"//\" + originAnchor.host !==\n\t\t\t\t\turlAnchor.protocol + \"//\" + urlAnchor.host;\n\t\t\t} catch ( e ) {\n\n\t\t\t\t// If there is an error parsing the URL, assume it is crossDomain,\n\t\t\t\t// it can be rejected by the transport if it is invalid\n\t\t\t\ts.crossDomain = true;\n\t\t\t}\n\t\t}\n\n\t\t// Convert data if not already a string\n\t\tif ( s.data && s.processData && typeof s.data !== \"string\" ) {\n\t\t\ts.data = jQuery.param( s.data, s.traditional );\n\t\t}\n\n\t\t// Apply prefilters\n\t\tinspectPrefiltersOrTransports( prefilters, s, options, jqXHR );\n\n\t\t// If request was aborted inside a prefilter, stop there\n\t\tif ( completed ) {\n\t\t\treturn jqXHR;\n\t\t}\n\n\t\t// We can fire global events as of now if asked to\n\t\t// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)\n\t\tfireGlobals = jQuery.event && s.global;\n\n\t\t// Watch for a new set of requests\n\t\tif ( fireGlobals && jQuery.active++ === 0 ) {\n\t\t\tjQuery.event.trigger( \"ajaxStart\" );\n\t\t}\n\n\t\t// Uppercase the type\n\t\ts.type = s.type.toUpperCase();\n\n\t\t// Determine if request has content\n\t\ts.hasContent = !rnoContent.test( s.type );\n\n\t\t// Save the URL in case we're toying with the If-Modified-Since\n\t\t// and/or If-None-Match header later on\n\t\t// Remove hash to simplify url manipulation\n\t\tcacheURL = s.url.replace( rhash, \"\" );\n\n\t\t// More options handling for requests with no content\n\t\tif ( !s.hasContent ) {\n\n\t\t\t// Remember the hash so we can put it back\n\t\t\tuncached = s.url.slice( cacheURL.length );\n\n\t\t\t// If data is available, append data to url\n\t\t\tif ( s.data ) {\n\t\t\t\tcacheURL += ( rquery.test( cacheURL ) ? \"&\" : \"?\" ) + s.data;\n\n\t\t\t\t// #9682: remove data so that it's not used in an eventual retry\n\t\t\t\tdelete s.data;\n\t\t\t}\n\n\t\t\t// Add or update anti-cache param if needed\n\t\t\tif ( s.cache === false ) {\n\t\t\t\tcacheURL = cacheURL.replace( rantiCache, \"$1\" );\n\t\t\t\tuncached = ( rquery.test( cacheURL ) ? \"&\" : \"?\" ) + \"_=\" + ( nonce++ ) + uncached;\n\t\t\t}\n\n\t\t\t// Put hash and anti-cache on the URL that will be requested (gh-1732)\n\t\t\ts.url = cacheURL + uncached;\n\n\t\t// Change '%20' to '+' if this is encoded form body content (gh-2658)\n\t\t} else if ( s.data && s.processData &&\n\t\t\t( s.contentType || \"\" ).indexOf( \"application/x-www-form-urlencoded\" ) === 0 ) {\n\t\t\ts.data = s.data.replace( r20, \"+\" );\n\t\t}\n\n\t\t// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.\n\t\tif ( s.ifModified ) {\n\t\t\tif ( jQuery.lastModified[ cacheURL ] ) {\n\t\t\t\tjqXHR.setRequestHeader( \"If-Modified-Since\", jQuery.lastModified[ cacheURL ] );\n\t\t\t}\n\t\t\tif ( jQuery.etag[ cacheURL ] ) {\n\t\t\t\tjqXHR.setRequestHeader( \"If-None-Match\", jQuery.etag[ cacheURL ] );\n\t\t\t}\n\t\t}\n\n\t\t// Set the correct header, if data is being sent\n\t\tif ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {\n\t\t\tjqXHR.setRequestHeader( \"Content-Type\", s.contentType );\n\t\t}\n\n\t\t// Set the Accepts header for the server, depending on the dataType\n\t\tjqXHR.setRequestHeader(\n\t\t\t\"Accept\",\n\t\t\ts.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?\n\t\t\t\ts.accepts[ s.dataTypes[ 0 ] ] +\n\t\t\t\t\t( s.dataTypes[ 0 ] !== \"*\" ? \", \" + allTypes + \"; q=0.01\" : \"\" ) :\n\t\t\t\ts.accepts[ \"*\" ]\n\t\t);\n\n\t\t// Check for headers option\n\t\tfor ( i in s.headers ) {\n\t\t\tjqXHR.setRequestHeader( i, s.headers[ i ] );\n\t\t}\n\n\t\t// Allow custom headers/mimetypes and early abort\n\t\tif ( s.beforeSend &&\n\t\t\t( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {\n\n\t\t\t// Abort if not done already and return\n\t\t\treturn jqXHR.abort();\n\t\t}\n\n\t\t// Aborting is no longer a cancellation\n\t\tstrAbort = \"abort\";\n\n\t\t// Install callbacks on deferreds\n\t\tcompleteDeferred.add( s.complete );\n\t\tjqXHR.done( s.success );\n\t\tjqXHR.fail( s.error );\n\n\t\t// Get transport\n\t\ttransport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );\n\n\t\t// If no transport, we auto-abort\n\t\tif ( !transport ) {\n\t\t\tdone( -1, \"No Transport\" );\n\t\t} else {\n\t\t\tjqXHR.readyState = 1;\n\n\t\t\t// Send global event\n\t\t\tif ( fireGlobals ) {\n\t\t\t\tglobalEventContext.trigger( \"ajaxSend\", [ jqXHR, s ] );\n\t\t\t}\n\n\t\t\t// If request was aborted inside ajaxSend, stop there\n\t\t\tif ( completed ) {\n\t\t\t\treturn jqXHR;\n\t\t\t}\n\n\t\t\t// Timeout\n\t\t\tif ( s.async && s.timeout > 0 ) {\n\t\t\t\ttimeoutTimer = window.setTimeout( function() {\n\t\t\t\t\tjqXHR.abort( \"timeout\" );\n\t\t\t\t}, s.timeout );\n\t\t\t}\n\n\t\t\ttry {\n\t\t\t\tcompleted = false;\n\t\t\t\ttransport.send( requestHeaders, done );\n\t\t\t} catch ( e ) {\n\n\t\t\t\t// Rethrow post-completion exceptions\n\t\t\t\tif ( completed ) {\n\t\t\t\t\tthrow e;\n\t\t\t\t}\n\n\t\t\t\t// Propagate others as results\n\t\t\t\tdone( -1, e );\n\t\t\t}\n\t\t}\n\n\t\t// Callback for when everything is done\n\t\tfunction done( status, nativeStatusText, responses, headers ) {\n\t\t\tvar isSuccess, success, error, response, modified,\n\t\t\t\tstatusText = nativeStatusText;\n\n\t\t\t// Ignore repeat invocations\n\t\t\tif ( completed ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tcompleted = true;\n\n\t\t\t// Clear timeout if it exists\n\t\t\tif ( timeoutTimer ) {\n\t\t\t\twindow.clearTimeout( timeoutTimer );\n\t\t\t}\n\n\t\t\t// Dereference transport for early garbage collection\n\t\t\t// (no matter how long the jqXHR object will be used)\n\t\t\ttransport = undefined;\n\n\t\t\t// Cache response headers\n\t\t\tresponseHeadersString = headers || \"\";\n\n\t\t\t// Set readyState\n\t\t\tjqXHR.readyState = status > 0 ? 4 : 0;\n\n\t\t\t// Determine if successful\n\t\t\tisSuccess = status >= 200 && status < 300 || status === 304;\n\n\t\t\t// Get response data\n\t\t\tif ( responses ) {\n\t\t\t\tresponse = ajaxHandleResponses( s, jqXHR, responses );\n\t\t\t}\n\n\t\t\t// Convert no matter what (that way responseXXX fields are always set)\n\t\t\tresponse = ajaxConvert( s, response, jqXHR, isSuccess );\n\n\t\t\t// If successful, handle type chaining\n\t\t\tif ( isSuccess ) {\n\n\t\t\t\t// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.\n\t\t\t\tif ( s.ifModified ) {\n\t\t\t\t\tmodified = jqXHR.getResponseHeader( \"Last-Modified\" );\n\t\t\t\t\tif ( modified ) {\n\t\t\t\t\t\tjQuery.lastModified[ cacheURL ] = modified;\n\t\t\t\t\t}\n\t\t\t\t\tmodified = jqXHR.getResponseHeader( \"etag\" );\n\t\t\t\t\tif ( modified ) {\n\t\t\t\t\t\tjQuery.etag[ cacheURL ] = modified;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// if no content\n\t\t\t\tif ( status === 204 || s.type === \"HEAD\" ) {\n\t\t\t\t\tstatusText = \"nocontent\";\n\n\t\t\t\t// if not modified\n\t\t\t\t} else if ( status === 304 ) {\n\t\t\t\t\tstatusText = \"notmodified\";\n\n\t\t\t\t// If we have data, let's convert it\n\t\t\t\t} else {\n\t\t\t\t\tstatusText = response.state;\n\t\t\t\t\tsuccess = response.data;\n\t\t\t\t\terror = response.error;\n\t\t\t\t\tisSuccess = !error;\n\t\t\t\t}\n\t\t\t} else {\n\n\t\t\t\t// Extract error from statusText and normalize for non-aborts\n\t\t\t\terror = statusText;\n\t\t\t\tif ( status || !statusText ) {\n\t\t\t\t\tstatusText = \"error\";\n\t\t\t\t\tif ( status < 0 ) {\n\t\t\t\t\t\tstatus = 0;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Set data for the fake xhr object\n\t\t\tjqXHR.status = status;\n\t\t\tjqXHR.statusText = ( nativeStatusText || statusText ) + \"\";\n\n\t\t\t// Success/Error\n\t\t\tif ( isSuccess ) {\n\t\t\t\tdeferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );\n\t\t\t} else {\n\t\t\t\tdeferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );\n\t\t\t}\n\n\t\t\t// Status-dependent callbacks\n\t\t\tjqXHR.statusCode( statusCode );\n\t\t\tstatusCode = undefined;\n\n\t\t\tif ( fireGlobals ) {\n\t\t\t\tglobalEventContext.trigger( isSuccess ? \"ajaxSuccess\" : \"ajaxError\",\n\t\t\t\t\t[ jqXHR, s, isSuccess ? success : error ] );\n\t\t\t}\n\n\t\t\t// Complete\n\t\t\tcompleteDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );\n\n\t\t\tif ( fireGlobals ) {\n\t\t\t\tglobalEventContext.trigger( \"ajaxComplete\", [ jqXHR, s ] );\n\n\t\t\t\t// Handle the global AJAX counter\n\t\t\t\tif ( !( --jQuery.active ) ) {\n\t\t\t\t\tjQuery.event.trigger( \"ajaxStop\" );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn jqXHR;\n\t},\n\n\tgetJSON: function( url, data, callback ) {\n\t\treturn jQuery.get( url, data, callback, \"json\" );\n\t},\n\n\tgetScript: function( url, callback ) {\n\t\treturn jQuery.get( url, undefined, callback, \"script\" );\n\t}\n} );\n\njQuery.each( [ \"get\", \"post\" ], function( i, method ) {\n\tjQuery[ method ] = function( url, data, callback, type ) {\n\n\t\t// Shift arguments if data argument was omitted\n\t\tif ( jQuery.isFunction( data ) ) {\n\t\t\ttype = type || callback;\n\t\t\tcallback = data;\n\t\t\tdata = undefined;\n\t\t}\n\n\t\t// The url can be an options object (which then must have .url)\n\t\treturn jQuery.ajax( jQuery.extend( {\n\t\t\turl: url,\n\t\t\ttype: method,\n\t\t\tdataType: type,\n\t\t\tdata: data,\n\t\t\tsuccess: callback\n\t\t}, jQuery.isPlainObject( url ) && url ) );\n\t};\n} );\n\n\njQuery._evalUrl = function( url ) {\n\treturn jQuery.ajax( {\n\t\turl: url,\n\n\t\t// Make this explicit, since user can override this through ajaxSetup (#11264)\n\t\ttype: \"GET\",\n\t\tdataType: \"script\",\n\t\tcache: true,\n\t\tasync: false,\n\t\tglobal: false,\n\t\t\"throws\": true\n\t} );\n};\n\n\njQuery.fn.extend( {\n\twrapAll: function( html ) {\n\t\tvar wrap;\n\n\t\tif ( this[ 0 ] ) {\n\t\t\tif ( jQuery.isFunction( html ) ) {\n\t\t\t\thtml = html.call( this[ 0 ] );\n\t\t\t}\n\n\t\t\t// The elements to wrap the target around\n\t\t\twrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );\n\n\t\t\tif ( this[ 0 ].parentNode ) {\n\t\t\t\twrap.insertBefore( this[ 0 ] );\n\t\t\t}\n\n\t\t\twrap.map( function() {\n\t\t\t\tvar elem = this;\n\n\t\t\t\twhile ( elem.firstElementChild ) {\n\t\t\t\t\telem = elem.firstElementChild;\n\t\t\t\t}\n\n\t\t\t\treturn elem;\n\t\t\t} ).append( this );\n\t\t}\n\n\t\treturn this;\n\t},\n\n\twrapInner: function( html ) {\n\t\tif ( jQuery.isFunction( html ) ) {\n\t\t\treturn this.each( function( i ) {\n\t\t\t\tjQuery( this ).wrapInner( html.call( this, i ) );\n\t\t\t} );\n\t\t}\n\n\t\treturn this.each( function() {\n\t\t\tvar self = jQuery( this ),\n\t\t\t\tcontents = self.contents();\n\n\t\t\tif ( contents.length ) {\n\t\t\t\tcontents.wrapAll( html );\n\n\t\t\t} else {\n\t\t\t\tself.append( html );\n\t\t\t}\n\t\t} );\n\t},\n\n\twrap: function( html ) {\n\t\tvar isFunction = jQuery.isFunction( html );\n\n\t\treturn this.each( function( i ) {\n\t\t\tjQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html );\n\t\t} );\n\t},\n\n\tunwrap: function( selector ) {\n\t\tthis.parent( selector ).not( \"body\" ).each( function() {\n\t\t\tjQuery( this ).replaceWith( this.childNodes );\n\t\t} );\n\t\treturn this;\n\t}\n} );\n\n\njQuery.expr.pseudos.hidden = function( elem ) {\n\treturn !jQuery.expr.pseudos.visible( elem );\n};\njQuery.expr.pseudos.visible = function( elem ) {\n\treturn !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );\n};\n\n\n\n\njQuery.ajaxSettings.xhr = function() {\n\ttry {\n\t\treturn new window.XMLHttpRequest();\n\t} catch ( e ) {}\n};\n\nvar xhrSuccessStatus = {\n\n\t\t// File protocol always yields status code 0, assume 200\n\t\t0: 200,\n\n\t\t// Support: IE <=9 only\n\t\t// #1450: sometimes IE returns 1223 when it should be 204\n\t\t1223: 204\n\t},\n\txhrSupported = jQuery.ajaxSettings.xhr();\n\nsupport.cors = !!xhrSupported && ( \"withCredentials\" in xhrSupported );\nsupport.ajax = xhrSupported = !!xhrSupported;\n\njQuery.ajaxTransport( function( options ) {\n\tvar callback, errorCallback;\n\n\t// Cross domain only allowed if supported through XMLHttpRequest\n\tif ( support.cors || xhrSupported && !options.crossDomain ) {\n\t\treturn {\n\t\t\tsend: function( headers, complete ) {\n\t\t\t\tvar i,\n\t\t\t\t\txhr = options.xhr();\n\n\t\t\t\txhr.open(\n\t\t\t\t\toptions.type,\n\t\t\t\t\toptions.url,\n\t\t\t\t\toptions.async,\n\t\t\t\t\toptions.username,\n\t\t\t\t\toptions.password\n\t\t\t\t);\n\n\t\t\t\t// Apply custom fields if provided\n\t\t\t\tif ( options.xhrFields ) {\n\t\t\t\t\tfor ( i in options.xhrFields ) {\n\t\t\t\t\t\txhr[ i ] = options.xhrFields[ i ];\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Override mime type if needed\n\t\t\t\tif ( options.mimeType && xhr.overrideMimeType ) {\n\t\t\t\t\txhr.overrideMimeType( options.mimeType );\n\t\t\t\t}\n\n\t\t\t\t// X-Requested-With header\n\t\t\t\t// For cross-domain requests, seeing as conditions for a preflight are\n\t\t\t\t// akin to a jigsaw puzzle, we simply never set it to be sure.\n\t\t\t\t// (it can always be set on a per-request basis or even using ajaxSetup)\n\t\t\t\t// For same-domain requests, won't change header if already provided.\n\t\t\t\tif ( !options.crossDomain && !headers[ \"X-Requested-With\" ] ) {\n\t\t\t\t\theaders[ \"X-Requested-With\" ] = \"XMLHttpRequest\";\n\t\t\t\t}\n\n\t\t\t\t// Set headers\n\t\t\t\tfor ( i in headers ) {\n\t\t\t\t\txhr.setRequestHeader( i, headers[ i ] );\n\t\t\t\t}\n\n\t\t\t\t// Callback\n\t\t\t\tcallback = function( type ) {\n\t\t\t\t\treturn function() {\n\t\t\t\t\t\tif ( callback ) {\n\t\t\t\t\t\t\tcallback = errorCallback = xhr.onload =\n\t\t\t\t\t\t\t\txhr.onerror = xhr.onabort = xhr.onreadystatechange = null;\n\n\t\t\t\t\t\t\tif ( type === \"abort\" ) {\n\t\t\t\t\t\t\t\txhr.abort();\n\t\t\t\t\t\t\t} else if ( type === \"error\" ) {\n\n\t\t\t\t\t\t\t\t// Support: IE <=9 only\n\t\t\t\t\t\t\t\t// On a manual native abort, IE9 throws\n\t\t\t\t\t\t\t\t// errors on any property access that is not readyState\n\t\t\t\t\t\t\t\tif ( typeof xhr.status !== \"number\" ) {\n\t\t\t\t\t\t\t\t\tcomplete( 0, \"error\" );\n\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\tcomplete(\n\n\t\t\t\t\t\t\t\t\t\t// File: protocol always yields status 0; see #8605, #14207\n\t\t\t\t\t\t\t\t\t\txhr.status,\n\t\t\t\t\t\t\t\t\t\txhr.statusText\n\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\tcomplete(\n\t\t\t\t\t\t\t\t\txhrSuccessStatus[ xhr.status ] || xhr.status,\n\t\t\t\t\t\t\t\t\txhr.statusText,\n\n\t\t\t\t\t\t\t\t\t// Support: IE <=9 only\n\t\t\t\t\t\t\t\t\t// IE9 has no XHR2 but throws on binary (trac-11426)\n\t\t\t\t\t\t\t\t\t// For XHR2 non-text, let the caller handle it (gh-2498)\n\t\t\t\t\t\t\t\t\t( xhr.responseType || \"text\" ) !== \"text\"  ||\n\t\t\t\t\t\t\t\t\ttypeof xhr.responseText !== \"string\" ?\n\t\t\t\t\t\t\t\t\t\t{ binary: xhr.response } :\n\t\t\t\t\t\t\t\t\t\t{ text: xhr.responseText },\n\t\t\t\t\t\t\t\t\txhr.getAllResponseHeaders()\n\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t};\n\t\t\t\t};\n\n\t\t\t\t// Listen to events\n\t\t\t\txhr.onload = callback();\n\t\t\t\terrorCallback = xhr.onerror = callback( \"error\" );\n\n\t\t\t\t// Support: IE 9 only\n\t\t\t\t// Use onreadystatechange to replace onabort\n\t\t\t\t// to handle uncaught aborts\n\t\t\t\tif ( xhr.onabort !== undefined ) {\n\t\t\t\t\txhr.onabort = errorCallback;\n\t\t\t\t} else {\n\t\t\t\t\txhr.onreadystatechange = function() {\n\n\t\t\t\t\t\t// Check readyState before timeout as it changes\n\t\t\t\t\t\tif ( xhr.readyState === 4 ) {\n\n\t\t\t\t\t\t\t// Allow onerror to be called first,\n\t\t\t\t\t\t\t// but that will not handle a native abort\n\t\t\t\t\t\t\t// Also, save errorCallback to a variable\n\t\t\t\t\t\t\t// as xhr.onerror cannot be accessed\n\t\t\t\t\t\t\twindow.setTimeout( function() {\n\t\t\t\t\t\t\t\tif ( callback ) {\n\t\t\t\t\t\t\t\t\terrorCallback();\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t} );\n\t\t\t\t\t\t}\n\t\t\t\t\t};\n\t\t\t\t}\n\n\t\t\t\t// Create the abort callback\n\t\t\t\tcallback = callback( \"abort\" );\n\n\t\t\t\ttry {\n\n\t\t\t\t\t// Do send the request (this may raise an exception)\n\t\t\t\t\txhr.send( options.hasContent && options.data || null );\n\t\t\t\t} catch ( e ) {\n\n\t\t\t\t\t// #14683: Only rethrow if this hasn't been notified as an error yet\n\t\t\t\t\tif ( callback ) {\n\t\t\t\t\t\tthrow e;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tabort: function() {\n\t\t\t\tif ( callback ) {\n\t\t\t\t\tcallback();\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t}\n} );\n\n\n\n\n// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)\njQuery.ajaxPrefilter( function( s ) {\n\tif ( s.crossDomain ) {\n\t\ts.contents.script = false;\n\t}\n} );\n\n// Install script dataType\njQuery.ajaxSetup( {\n\taccepts: {\n\t\tscript: \"text/javascript, application/javascript, \" +\n\t\t\t\"application/ecmascript, application/x-ecmascript\"\n\t},\n\tcontents: {\n\t\tscript: /\\b(?:java|ecma)script\\b/\n\t},\n\tconverters: {\n\t\t\"text script\": function( text ) {\n\t\t\tjQuery.globalEval( text );\n\t\t\treturn text;\n\t\t}\n\t}\n} );\n\n// Handle cache's special case and crossDomain\njQuery.ajaxPrefilter( \"script\", function( s ) {\n\tif ( s.cache === undefined ) {\n\t\ts.cache = false;\n\t}\n\tif ( s.crossDomain ) {\n\t\ts.type = \"GET\";\n\t}\n} );\n\n// Bind script tag hack transport\njQuery.ajaxTransport( \"script\", function( s ) {\n\n\t// This transport only deals with cross domain requests\n\tif ( s.crossDomain ) {\n\t\tvar script, callback;\n\t\treturn {\n\t\t\tsend: function( _, complete ) {\n\t\t\t\tscript = jQuery( \"<script>\" ).prop( {\n\t\t\t\t\tcharset: s.scriptCharset,\n\t\t\t\t\tsrc: s.url\n\t\t\t\t} ).on(\n\t\t\t\t\t\"load error\",\n\t\t\t\t\tcallback = function( evt ) {\n\t\t\t\t\t\tscript.remove();\n\t\t\t\t\t\tcallback = null;\n\t\t\t\t\t\tif ( evt ) {\n\t\t\t\t\t\t\tcomplete( evt.type === \"error\" ? 404 : 200, evt.type );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t);\n\n\t\t\t\t// Use native DOM manipulation to avoid our domManip AJAX trickery\n\t\t\t\tdocument.head.appendChild( script[ 0 ] );\n\t\t\t},\n\t\t\tabort: function() {\n\t\t\t\tif ( callback ) {\n\t\t\t\t\tcallback();\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t}\n} );\n\n\n\n\nvar oldCallbacks = [],\n\trjsonp = /(=)\\?(?=&|$)|\\?\\?/;\n\n// Default jsonp settings\njQuery.ajaxSetup( {\n\tjsonp: \"callback\",\n\tjsonpCallback: function() {\n\t\tvar callback = oldCallbacks.pop() || ( jQuery.expando + \"_\" + ( nonce++ ) );\n\t\tthis[ callback ] = true;\n\t\treturn callback;\n\t}\n} );\n\n// Detect, normalize options and install callbacks for jsonp requests\njQuery.ajaxPrefilter( \"json jsonp\", function( s, originalSettings, jqXHR ) {\n\n\tvar callbackName, overwritten, responseContainer,\n\t\tjsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?\n\t\t\t\"url\" :\n\t\t\ttypeof s.data === \"string\" &&\n\t\t\t\t( s.contentType || \"\" )\n\t\t\t\t\t.indexOf( \"application/x-www-form-urlencoded\" ) === 0 &&\n\t\t\t\trjsonp.test( s.data ) && \"data\"\n\t\t);\n\n\t// Handle iff the expected data type is \"jsonp\" or we have a parameter to set\n\tif ( jsonProp || s.dataTypes[ 0 ] === \"jsonp\" ) {\n\n\t\t// Get callback name, remembering preexisting value associated with it\n\t\tcallbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?\n\t\t\ts.jsonpCallback() :\n\t\t\ts.jsonpCallback;\n\n\t\t// Insert callback into url or form data\n\t\tif ( jsonProp ) {\n\t\t\ts[ jsonProp ] = s[ jsonProp ].replace( rjsonp, \"$1\" + callbackName );\n\t\t} else if ( s.jsonp !== false ) {\n\t\t\ts.url += ( rquery.test( s.url ) ? \"&\" : \"?\" ) + s.jsonp + \"=\" + callbackName;\n\t\t}\n\n\t\t// Use data converter to retrieve json after script execution\n\t\ts.converters[ \"script json\" ] = function() {\n\t\t\tif ( !responseContainer ) {\n\t\t\t\tjQuery.error( callbackName + \" was not called\" );\n\t\t\t}\n\t\t\treturn responseContainer[ 0 ];\n\t\t};\n\n\t\t// Force json dataType\n\t\ts.dataTypes[ 0 ] = \"json\";\n\n\t\t// Install callback\n\t\toverwritten = window[ callbackName ];\n\t\twindow[ callbackName ] = function() {\n\t\t\tresponseContainer = arguments;\n\t\t};\n\n\t\t// Clean-up function (fires after converters)\n\t\tjqXHR.always( function() {\n\n\t\t\t// If previous value didn't exist - remove it\n\t\t\tif ( overwritten === undefined ) {\n\t\t\t\tjQuery( window ).removeProp( callbackName );\n\n\t\t\t// Otherwise restore preexisting value\n\t\t\t} else {\n\t\t\t\twindow[ callbackName ] = overwritten;\n\t\t\t}\n\n\t\t\t// Save back as free\n\t\t\tif ( s[ callbackName ] ) {\n\n\t\t\t\t// Make sure that re-using the options doesn't screw things around\n\t\t\t\ts.jsonpCallback = originalSettings.jsonpCallback;\n\n\t\t\t\t// Save the callback name for future use\n\t\t\t\toldCallbacks.push( callbackName );\n\t\t\t}\n\n\t\t\t// Call if it was a function and we have a response\n\t\t\tif ( responseContainer && jQuery.isFunction( overwritten ) ) {\n\t\t\t\toverwritten( responseContainer[ 0 ] );\n\t\t\t}\n\n\t\t\tresponseContainer = overwritten = undefined;\n\t\t} );\n\n\t\t// Delegate to script\n\t\treturn \"script\";\n\t}\n} );\n\n\n\n\n// Support: Safari 8 only\n// In Safari 8 documents created via document.implementation.createHTMLDocument\n// collapse sibling forms: the second one becomes a child of the first one.\n// Because of that, this security measure has to be disabled in Safari 8.\n// https://bugs.webkit.org/show_bug.cgi?id=137337\nsupport.createHTMLDocument = ( function() {\n\tvar body = document.implementation.createHTMLDocument( \"\" ).body;\n\tbody.innerHTML = \"<form></form><form></form>\";\n\treturn body.childNodes.length === 2;\n} )();\n\n\n// Argument \"data\" should be string of html\n// context (optional): If specified, the fragment will be created in this context,\n// defaults to document\n// keepScripts (optional): If true, will include scripts passed in the html string\njQuery.parseHTML = function( data, context, keepScripts ) {\n\tif ( typeof data !== \"string\" ) {\n\t\treturn [];\n\t}\n\tif ( typeof context === \"boolean\" ) {\n\t\tkeepScripts = context;\n\t\tcontext = false;\n\t}\n\n\tvar base, parsed, scripts;\n\n\tif ( !context ) {\n\n\t\t// Stop scripts or inline event handlers from being executed immediately\n\t\t// by using document.implementation\n\t\tif ( support.createHTMLDocument ) {\n\t\t\tcontext = document.implementation.createHTMLDocument( \"\" );\n\n\t\t\t// Set the base href for the created document\n\t\t\t// so any parsed elements with URLs\n\t\t\t// are based on the document's URL (gh-2965)\n\t\t\tbase = context.createElement( \"base\" );\n\t\t\tbase.href = document.location.href;\n\t\t\tcontext.head.appendChild( base );\n\t\t} else {\n\t\t\tcontext = document;\n\t\t}\n\t}\n\n\tparsed = rsingleTag.exec( data );\n\tscripts = !keepScripts && [];\n\n\t// Single tag\n\tif ( parsed ) {\n\t\treturn [ context.createElement( parsed[ 1 ] ) ];\n\t}\n\n\tparsed = buildFragment( [ data ], context, scripts );\n\n\tif ( scripts && scripts.length ) {\n\t\tjQuery( scripts ).remove();\n\t}\n\n\treturn jQuery.merge( [], parsed.childNodes );\n};\n\n\n/**\n * Load a url into a page\n */\njQuery.fn.load = function( url, params, callback ) {\n\tvar selector, type, response,\n\t\tself = this,\n\t\toff = url.indexOf( \" \" );\n\n\tif ( off > -1 ) {\n\t\tselector = stripAndCollapse( url.slice( off ) );\n\t\turl = url.slice( 0, off );\n\t}\n\n\t// If it's a function\n\tif ( jQuery.isFunction( params ) ) {\n\n\t\t// We assume that it's the callback\n\t\tcallback = params;\n\t\tparams = undefined;\n\n\t// Otherwise, build a param string\n\t} else if ( params && typeof params === \"object\" ) {\n\t\ttype = \"POST\";\n\t}\n\n\t// If we have elements to modify, make the request\n\tif ( self.length > 0 ) {\n\t\tjQuery.ajax( {\n\t\t\turl: url,\n\n\t\t\t// If \"type\" variable is undefined, then \"GET\" method will be used.\n\t\t\t// Make value of this field explicit since\n\t\t\t// user can override it through ajaxSetup method\n\t\t\ttype: type || \"GET\",\n\t\t\tdataType: \"html\",\n\t\t\tdata: params\n\t\t} ).done( function( responseText ) {\n\n\t\t\t// Save response for use in complete callback\n\t\t\tresponse = arguments;\n\n\t\t\tself.html( selector ?\n\n\t\t\t\t// If a selector was specified, locate the right elements in a dummy div\n\t\t\t\t// Exclude scripts to avoid IE 'Permission Denied' errors\n\t\t\t\tjQuery( \"<div>\" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :\n\n\t\t\t\t// Otherwise use the full result\n\t\t\t\tresponseText );\n\n\t\t// If the request succeeds, this function gets \"data\", \"status\", \"jqXHR\"\n\t\t// but they are ignored because response was set above.\n\t\t// If it fails, this function gets \"jqXHR\", \"status\", \"error\"\n\t\t} ).always( callback && function( jqXHR, status ) {\n\t\t\tself.each( function() {\n\t\t\t\tcallback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );\n\t\t\t} );\n\t\t} );\n\t}\n\n\treturn this;\n};\n\n\n\n\n// Attach a bunch of functions for handling common AJAX events\njQuery.each( [\n\t\"ajaxStart\",\n\t\"ajaxStop\",\n\t\"ajaxComplete\",\n\t\"ajaxError\",\n\t\"ajaxSuccess\",\n\t\"ajaxSend\"\n], function( i, type ) {\n\tjQuery.fn[ type ] = function( fn ) {\n\t\treturn this.on( type, fn );\n\t};\n} );\n\n\n\n\njQuery.expr.pseudos.animated = function( elem ) {\n\treturn jQuery.grep( jQuery.timers, function( fn ) {\n\t\treturn elem === fn.elem;\n\t} ).length;\n};\n\n\n\n\n/**\n * Gets a window from an element\n */\nfunction getWindow( elem ) {\n\treturn jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;\n}\n\njQuery.offset = {\n\tsetOffset: function( elem, options, i ) {\n\t\tvar curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,\n\t\t\tposition = jQuery.css( elem, \"position\" ),\n\t\t\tcurElem = jQuery( elem ),\n\t\t\tprops = {};\n\n\t\t// Set position first, in-case top/left are set even on static elem\n\t\tif ( position === \"static\" ) {\n\t\t\telem.style.position = \"relative\";\n\t\t}\n\n\t\tcurOffset = curElem.offset();\n\t\tcurCSSTop = jQuery.css( elem, \"top\" );\n\t\tcurCSSLeft = jQuery.css( elem, \"left\" );\n\t\tcalculatePosition = ( position === \"absolute\" || position === \"fixed\" ) &&\n\t\t\t( curCSSTop + curCSSLeft ).indexOf( \"auto\" ) > -1;\n\n\t\t// Need to be able to calculate position if either\n\t\t// top or left is auto and position is either absolute or fixed\n\t\tif ( calculatePosition ) {\n\t\t\tcurPosition = curElem.position();\n\t\t\tcurTop = curPosition.top;\n\t\t\tcurLeft = curPosition.left;\n\n\t\t} else {\n\t\t\tcurTop = parseFloat( curCSSTop ) || 0;\n\t\t\tcurLeft = parseFloat( curCSSLeft ) || 0;\n\t\t}\n\n\t\tif ( jQuery.isFunction( options ) ) {\n\n\t\t\t// Use jQuery.extend here to allow modification of coordinates argument (gh-1848)\n\t\t\toptions = options.call( elem, i, jQuery.extend( {}, curOffset ) );\n\t\t}\n\n\t\tif ( options.top != null ) {\n\t\t\tprops.top = ( options.top - curOffset.top ) + curTop;\n\t\t}\n\t\tif ( options.left != null ) {\n\t\t\tprops.left = ( options.left - curOffset.left ) + curLeft;\n\t\t}\n\n\t\tif ( \"using\" in options ) {\n\t\t\toptions.using.call( elem, props );\n\n\t\t} else {\n\t\t\tcurElem.css( props );\n\t\t}\n\t}\n};\n\njQuery.fn.extend( {\n\toffset: function( options ) {\n\n\t\t// Preserve chaining for setter\n\t\tif ( arguments.length ) {\n\t\t\treturn options === undefined ?\n\t\t\t\tthis :\n\t\t\t\tthis.each( function( i ) {\n\t\t\t\t\tjQuery.offset.setOffset( this, options, i );\n\t\t\t\t} );\n\t\t}\n\n\t\tvar docElem, win, rect, doc,\n\t\t\telem = this[ 0 ];\n\n\t\tif ( !elem ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Support: IE <=11 only\n\t\t// Running getBoundingClientRect on a\n\t\t// disconnected node in IE throws an error\n\t\tif ( !elem.getClientRects().length ) {\n\t\t\treturn { top: 0, left: 0 };\n\t\t}\n\n\t\trect = elem.getBoundingClientRect();\n\n\t\t// Make sure element is not hidden (display: none)\n\t\tif ( rect.width || rect.height ) {\n\t\t\tdoc = elem.ownerDocument;\n\t\t\twin = getWindow( doc );\n\t\t\tdocElem = doc.documentElement;\n\n\t\t\treturn {\n\t\t\t\ttop: rect.top + win.pageYOffset - docElem.clientTop,\n\t\t\t\tleft: rect.left + win.pageXOffset - docElem.clientLeft\n\t\t\t};\n\t\t}\n\n\t\t// Return zeros for disconnected and hidden elements (gh-2310)\n\t\treturn rect;\n\t},\n\n\tposition: function() {\n\t\tif ( !this[ 0 ] ) {\n\t\t\treturn;\n\t\t}\n\n\t\tvar offsetParent, offset,\n\t\t\telem = this[ 0 ],\n\t\t\tparentOffset = { top: 0, left: 0 };\n\n\t\t// Fixed elements are offset from window (parentOffset = {top:0, left: 0},\n\t\t// because it is its only offset parent\n\t\tif ( jQuery.css( elem, \"position\" ) === \"fixed\" ) {\n\n\t\t\t// Assume getBoundingClientRect is there when computed position is fixed\n\t\t\toffset = elem.getBoundingClientRect();\n\n\t\t} else {\n\n\t\t\t// Get *real* offsetParent\n\t\t\toffsetParent = this.offsetParent();\n\n\t\t\t// Get correct offsets\n\t\t\toffset = this.offset();\n\t\t\tif ( !jQuery.nodeName( offsetParent[ 0 ], \"html\" ) ) {\n\t\t\t\tparentOffset = offsetParent.offset();\n\t\t\t}\n\n\t\t\t// Add offsetParent borders\n\t\t\tparentOffset = {\n\t\t\t\ttop: parentOffset.top + jQuery.css( offsetParent[ 0 ], \"borderTopWidth\", true ),\n\t\t\t\tleft: parentOffset.left + jQuery.css( offsetParent[ 0 ], \"borderLeftWidth\", true )\n\t\t\t};\n\t\t}\n\n\t\t// Subtract parent offsets and element margins\n\t\treturn {\n\t\t\ttop: offset.top - parentOffset.top - jQuery.css( elem, \"marginTop\", true ),\n\t\t\tleft: offset.left - parentOffset.left - jQuery.css( elem, \"marginLeft\", true )\n\t\t};\n\t},\n\n\t// This method will return documentElement in the following cases:\n\t// 1) For the element inside the iframe without offsetParent, this method will return\n\t//    documentElement of the parent window\n\t// 2) For the hidden or detached element\n\t// 3) For body or html element, i.e. in case of the html node - it will return itself\n\t//\n\t// but those exceptions were never presented as a real life use-cases\n\t// and might be considered as more preferable results.\n\t//\n\t// This logic, however, is not guaranteed and can change at any point in the future\n\toffsetParent: function() {\n\t\treturn this.map( function() {\n\t\t\tvar offsetParent = this.offsetParent;\n\n\t\t\twhile ( offsetParent && jQuery.css( offsetParent, \"position\" ) === \"static\" ) {\n\t\t\t\toffsetParent = offsetParent.offsetParent;\n\t\t\t}\n\n\t\t\treturn offsetParent || documentElement;\n\t\t} );\n\t}\n} );\n\n// Create scrollLeft and scrollTop methods\njQuery.each( { scrollLeft: \"pageXOffset\", scrollTop: \"pageYOffset\" }, function( method, prop ) {\n\tvar top = \"pageYOffset\" === prop;\n\n\tjQuery.fn[ method ] = function( val ) {\n\t\treturn access( this, function( elem, method, val ) {\n\t\t\tvar win = getWindow( elem );\n\n\t\t\tif ( val === undefined ) {\n\t\t\t\treturn win ? win[ prop ] : elem[ method ];\n\t\t\t}\n\n\t\t\tif ( win ) {\n\t\t\t\twin.scrollTo(\n\t\t\t\t\t!top ? val : win.pageXOffset,\n\t\t\t\t\ttop ? val : win.pageYOffset\n\t\t\t\t);\n\n\t\t\t} else {\n\t\t\t\telem[ method ] = val;\n\t\t\t}\n\t\t}, method, val, arguments.length );\n\t};\n} );\n\n// Support: Safari <=7 - 9.1, Chrome <=37 - 49\n// Add the top/left cssHooks using jQuery.fn.position\n// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084\n// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347\n// getComputedStyle returns percent when specified for top/left/bottom/right;\n// rather than make the css module depend on the offset module, just check for it here\njQuery.each( [ \"top\", \"left\" ], function( i, prop ) {\n\tjQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,\n\t\tfunction( elem, computed ) {\n\t\t\tif ( computed ) {\n\t\t\t\tcomputed = curCSS( elem, prop );\n\n\t\t\t\t// If curCSS returns percentage, fallback to offset\n\t\t\t\treturn rnumnonpx.test( computed ) ?\n\t\t\t\t\tjQuery( elem ).position()[ prop ] + \"px\" :\n\t\t\t\t\tcomputed;\n\t\t\t}\n\t\t}\n\t);\n} );\n\n\n// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods\njQuery.each( { Height: \"height\", Width: \"width\" }, function( name, type ) {\n\tjQuery.each( { padding: \"inner\" + name, content: type, \"\": \"outer\" + name },\n\t\tfunction( defaultExtra, funcName ) {\n\n\t\t// Margin is only for outerHeight, outerWidth\n\t\tjQuery.fn[ funcName ] = function( margin, value ) {\n\t\t\tvar chainable = arguments.length && ( defaultExtra || typeof margin !== \"boolean\" ),\n\t\t\t\textra = defaultExtra || ( margin === true || value === true ? \"margin\" : \"border\" );\n\n\t\t\treturn access( this, function( elem, type, value ) {\n\t\t\t\tvar doc;\n\n\t\t\t\tif ( jQuery.isWindow( elem ) ) {\n\n\t\t\t\t\t// $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)\n\t\t\t\t\treturn funcName.indexOf( \"outer\" ) === 0 ?\n\t\t\t\t\t\telem[ \"inner\" + name ] :\n\t\t\t\t\t\telem.document.documentElement[ \"client\" + name ];\n\t\t\t\t}\n\n\t\t\t\t// Get document width or height\n\t\t\t\tif ( elem.nodeType === 9 ) {\n\t\t\t\t\tdoc = elem.documentElement;\n\n\t\t\t\t\t// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],\n\t\t\t\t\t// whichever is greatest\n\t\t\t\t\treturn Math.max(\n\t\t\t\t\t\telem.body[ \"scroll\" + name ], doc[ \"scroll\" + name ],\n\t\t\t\t\t\telem.body[ \"offset\" + name ], doc[ \"offset\" + name ],\n\t\t\t\t\t\tdoc[ \"client\" + name ]\n\t\t\t\t\t);\n\t\t\t\t}\n\n\t\t\t\treturn value === undefined ?\n\n\t\t\t\t\t// Get width or height on the element, requesting but not forcing parseFloat\n\t\t\t\t\tjQuery.css( elem, type, extra ) :\n\n\t\t\t\t\t// Set width or height on the element\n\t\t\t\t\tjQuery.style( elem, type, value, extra );\n\t\t\t}, type, chainable ? margin : undefined, chainable );\n\t\t};\n\t} );\n} );\n\n\njQuery.fn.extend( {\n\n\tbind: function( types, data, fn ) {\n\t\treturn this.on( types, null, data, fn );\n\t},\n\tunbind: function( types, fn ) {\n\t\treturn this.off( types, null, fn );\n\t},\n\n\tdelegate: function( selector, types, data, fn ) {\n\t\treturn this.on( types, selector, data, fn );\n\t},\n\tundelegate: function( selector, types, fn ) {\n\n\t\t// ( namespace ) or ( selector, types [, fn] )\n\t\treturn arguments.length === 1 ?\n\t\t\tthis.off( selector, \"**\" ) :\n\t\t\tthis.off( types, selector || \"**\", fn );\n\t}\n} );\n\njQuery.parseJSON = JSON.parse;\n\n\n\n\n// Register as a named AMD module, since jQuery can be concatenated with other\n// files that may use define, but not via a proper concatenation script that\n// understands anonymous AMD modules. A named AMD is safest and most robust\n// way to register. Lowercase jquery is used because AMD module names are\n// derived from file names, and jQuery is normally delivered in a lowercase\n// file name. Do this after creating the global so that if an AMD module wants\n// to call noConflict to hide this version of jQuery, it will work.\n\n// Note that for maximum portability, libraries that are not jQuery should\n// declare themselves as anonymous modules, and avoid setting a global if an\n// AMD loader is present. jQuery is a special case. For more information, see\n// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon\n\nif ( typeof define === \"function\" && define.amd ) {\n\tdefine( \"jquery\", [], function() {\n\t\treturn jQuery;\n\t} );\n}\n\n\n\n\nvar\n\n\t// Map over jQuery in case of overwrite\n\t_jQuery = window.jQuery,\n\n\t// Map over the $ in case of overwrite\n\t_$ = window.$;\n\njQuery.noConflict = function( deep ) {\n\tif ( window.$ === jQuery ) {\n\t\twindow.$ = _$;\n\t}\n\n\tif ( deep && window.jQuery === jQuery ) {\n\t\twindow.jQuery = _jQuery;\n\t}\n\n\treturn jQuery;\n};\n\n// Expose jQuery and $ identifiers, even in AMD\n// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)\n// and CommonJS for browser emulators (#13566)\nif ( !noGlobal ) {\n\twindow.jQuery = window.$ = jQuery;\n}\n\n\n\n\n\nreturn jQuery;\n} );\n\n/**\n * @license AngularJS v1.8.3\n * (c) 2010-2020 Google LLC. http://angularjs.org\n * License: MIT\n */\n(function(window) {'use strict';\n\n/* exported\n  minErrConfig,\n  errorHandlingConfig,\n  isValidObjectMaxDepth\n*/\n\nvar minErrConfig = {\n  objectMaxDepth: 5,\n  urlErrorParamsEnabled: true\n};\n\n/**\n * @ngdoc function\n * @name angular.errorHandlingConfig\n * @module ng\n * @kind function\n *\n * @description\n * Configure several aspects of error handling in AngularJS if used as a setter or return the\n * current configuration if used as a getter. The following options are supported:\n *\n * - **objectMaxDepth**: The maximum depth to which objects are traversed when stringified for error messages.\n *\n * Omitted or undefined options will leave the corresponding configuration values unchanged.\n *\n * @param {Object=} config - The configuration object. May only contain the options that need to be\n *     updated. Supported keys:\n *\n * * `objectMaxDepth`  **{Number}** - The max depth for stringifying objects. Setting to a\n *   non-positive or non-numeric value, removes the max depth limit.\n *   Default: 5\n *\n * * `urlErrorParamsEnabled`  **{Boolean}** - Specifies whether the generated error url will\n *   contain the parameters of the thrown error. Disabling the parameters can be useful if the\n *   generated error url is very long.\n *\n *   Default: true. When used without argument, it returns the current value.\n */\nfunction errorHandlingConfig(config) {\n  if (isObject(config)) {\n    if (isDefined(config.objectMaxDepth)) {\n      minErrConfig.objectMaxDepth = isValidObjectMaxDepth(config.objectMaxDepth) ? config.objectMaxDepth : NaN;\n    }\n    if (isDefined(config.urlErrorParamsEnabled) && isBoolean(config.urlErrorParamsEnabled)) {\n      minErrConfig.urlErrorParamsEnabled = config.urlErrorParamsEnabled;\n    }\n  } else {\n    return minErrConfig;\n  }\n}\n\n/**\n * @private\n * @param {Number} maxDepth\n * @return {boolean}\n */\nfunction isValidObjectMaxDepth(maxDepth) {\n  return isNumber(maxDepth) && maxDepth > 0;\n}\n\n\n/**\n * @description\n *\n * This object provides a utility for producing rich Error messages within\n * AngularJS. It can be called as follows:\n *\n * var exampleMinErr = minErr('example');\n * throw exampleMinErr('one', 'This {0} is {1}', foo, bar);\n *\n * The above creates an instance of minErr in the example namespace. The\n * resulting error will have a namespaced error code of example.one.  The\n * resulting error will replace {0} with the value of foo, and {1} with the\n * value of bar. The object is not restricted in the number of arguments it can\n * take.\n *\n * If fewer arguments are specified than necessary for interpolation, the extra\n * interpolation markers will be preserved in the final string.\n *\n * Since data will be parsed statically during a build step, some restrictions\n * are applied with respect to how minErr instances are created and called.\n * Instances should have names of the form namespaceMinErr for a minErr created\n * using minErr('namespace'). Error codes, namespaces and template strings\n * should all be static strings, not variables or general expressions.\n *\n * @param {string} module The namespace to use for the new minErr instance.\n * @param {function} ErrorConstructor Custom error constructor to be instantiated when returning\n *   error from returned function, for cases when a particular type of error is useful.\n * @returns {function(code:string, template:string, ...templateArgs): Error} minErr instance\n */\n\nfunction minErr(module, ErrorConstructor) {\n  ErrorConstructor = ErrorConstructor || Error;\n\n  var url = 'https://errors.angularjs.org/1.8.3/';\n  var regex = url.replace('.', '\\\\.') + '[\\\\s\\\\S]*';\n  var errRegExp = new RegExp(regex, 'g');\n\n  return function() {\n    var code = arguments[0],\n      template = arguments[1],\n      message = '[' + (module ? module + ':' : '') + code + '] ',\n      templateArgs = sliceArgs(arguments, 2).map(function(arg) {\n        return toDebugString(arg, minErrConfig.objectMaxDepth);\n      }),\n      paramPrefix, i;\n\n    // A minErr message has two parts: the message itself and the url that contains the\n    // encoded message.\n    // The message's parameters can contain other error messages which also include error urls.\n    // To prevent the messages from getting too long, we strip the error urls from the parameters.\n\n    message += template.replace(/\\{\\d+\\}/g, function(match) {\n      var index = +match.slice(1, -1);\n\n      if (index < templateArgs.length) {\n        return templateArgs[index].replace(errRegExp, '');\n      }\n\n      return match;\n    });\n\n    message += '\\n' + url + (module ? module + '/' : '') + code;\n\n    if (minErrConfig.urlErrorParamsEnabled) {\n      for (i = 0, paramPrefix = '?'; i < templateArgs.length; i++, paramPrefix = '&') {\n        message += paramPrefix + 'p' + i + '=' + encodeURIComponent(templateArgs[i]);\n      }\n    }\n\n    return new ErrorConstructor(message);\n  };\n}\n\n/* We need to tell ESLint what variables are being exported */\n/* exported\n  angular,\n  msie,\n  jqLite,\n  jQuery,\n  slice,\n  splice,\n  push,\n  toString,\n  minErrConfig,\n  errorHandlingConfig,\n  isValidObjectMaxDepth,\n  ngMinErr,\n  angularModule,\n  uid,\n  REGEX_STRING_REGEXP,\n  VALIDITY_STATE_PROPERTY,\n\n  lowercase,\n  uppercase,\n  nodeName_,\n  isArrayLike,\n  forEach,\n  forEachSorted,\n  reverseParams,\n  nextUid,\n  setHashKey,\n  extend,\n  toInt,\n  inherit,\n  merge,\n  noop,\n  identity,\n  valueFn,\n  isUndefined,\n  isDefined,\n  isObject,\n  isBlankObject,\n  isString,\n  isNumber,\n  isNumberNaN,\n  isDate,\n  isError,\n  isArray,\n  isFunction,\n  isRegExp,\n  isWindow,\n  isScope,\n  isFile,\n  isFormData,\n  isBlob,\n  isBoolean,\n  isPromiseLike,\n  trim,\n  escapeForRegexp,\n  isElement,\n  makeMap,\n  includes,\n  arrayRemove,\n  copy,\n  simpleCompare,\n  equals,\n  csp,\n  jq,\n  concat,\n  sliceArgs,\n  bind,\n  toJsonReplacer,\n  toJson,\n  fromJson,\n  convertTimezoneToLocal,\n  timezoneToOffset,\n  addDateMinutes,\n  startingTag,\n  tryDecodeURIComponent,\n  parseKeyValue,\n  toKeyValue,\n  encodeUriSegment,\n  encodeUriQuery,\n  angularInit,\n  bootstrap,\n  getTestability,\n  snake_case,\n  bindJQuery,\n  assertArg,\n  assertArgFn,\n  assertNotHasOwnProperty,\n  getter,\n  getBlockNodes,\n  hasOwnProperty,\n  createMap,\n  stringify,\n  UNSAFE_restoreLegacyJqLiteXHTMLReplacement,\n\n  NODE_TYPE_ELEMENT,\n  NODE_TYPE_ATTRIBUTE,\n  NODE_TYPE_TEXT,\n  NODE_TYPE_COMMENT,\n  NODE_TYPE_DOCUMENT,\n  NODE_TYPE_DOCUMENT_FRAGMENT\n*/\n\n////////////////////////////////////\n\n/**\n * @ngdoc module\n * @name ng\n * @module ng\n * @installation\n * @description\n *\n * The ng module is loaded by default when an AngularJS application is started. The module itself\n * contains the essential components for an AngularJS application to function. The table below\n * lists a high level breakdown of each of the services/factories, filters, directives and testing\n * components available within this core module.\n *\n */\n\nvar REGEX_STRING_REGEXP = /^\\/(.+)\\/([a-z]*)$/;\n\n// The name of a form control's ValidityState property.\n// This is used so that it's possible for internal tests to create mock ValidityStates.\nvar VALIDITY_STATE_PROPERTY = 'validity';\n\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\n/**\n * @private\n *\n * @description Converts the specified string to lowercase.\n * @param {string} string String to be converted to lowercase.\n * @returns {string} Lowercased string.\n */\nvar lowercase = function(string) {return isString(string) ? string.toLowerCase() : string;};\n\n/**\n * @private\n *\n * @description Converts the specified string to uppercase.\n * @param {string} string String to be converted to uppercase.\n * @returns {string} Uppercased string.\n */\nvar uppercase = function(string) {return isString(string) ? string.toUpperCase() : string;};\n\n\nvar\n    msie,             // holds major version number for IE, or NaN if UA is not IE.\n    jqLite,           // delay binding since jQuery could be loaded after us.\n    jQuery,           // delay binding\n    slice             = [].slice,\n    splice            = [].splice,\n    push              = [].push,\n    toString          = Object.prototype.toString,\n    getPrototypeOf    = Object.getPrototypeOf,\n    ngMinErr          = minErr('ng'),\n\n    /** @name angular */\n    angular           = window.angular || (window.angular = {}),\n    angularModule,\n    uid               = 0;\n\n// Support: IE 9-11 only\n/**\n * documentMode is an IE-only property\n * http://msdn.microsoft.com/en-us/library/ie/cc196988(v=vs.85).aspx\n */\nmsie = window.document.documentMode;\n\n\n/**\n * @private\n * @param {*} obj\n * @return {boolean} Returns true if `obj` is an array or array-like object (NodeList, Arguments,\n *                   String ...)\n */\nfunction isArrayLike(obj) {\n\n  // `null`, `undefined` and `window` are not array-like\n  if (obj == null || isWindow(obj)) return false;\n\n  // arrays, strings and jQuery/jqLite objects are array like\n  // * jqLite is either the jQuery or jqLite constructor function\n  // * we have to check the existence of jqLite first as this method is called\n  //   via the forEach method when constructing the jqLite object in the first place\n  if (isArray(obj) || isString(obj) || (jqLite && obj instanceof jqLite)) return true;\n\n  // Support: iOS 8.2 (not reproducible in simulator)\n  // \"length\" in obj used to prevent JIT error (gh-11508)\n  var length = 'length' in Object(obj) && obj.length;\n\n  // NodeList objects (with `item` method) and\n  // other objects with suitable length characteristics are array-like\n  return isNumber(length) && (length >= 0 && (length - 1) in obj || typeof obj.item === 'function');\n\n}\n\n/**\n * @ngdoc function\n * @name angular.forEach\n * @module ng\n * @kind function\n *\n * @description\n * Invokes the `iterator` function once for each item in `obj` collection, which can be either an\n * object or an array. The `iterator` function is invoked with `iterator(value, key, obj)`, where `value`\n * is the value of an object property or an array element, `key` is the object property key or\n * array element index and obj is the `obj` itself. Specifying a `context` for the function is optional.\n *\n * It is worth noting that `.forEach` does not iterate over inherited properties because it filters\n * using the `hasOwnProperty` method.\n *\n * Unlike ES262's\n * [Array.prototype.forEach](http://www.ecma-international.org/ecma-262/5.1/#sec-15.4.4.18),\n * providing 'undefined' or 'null' values for `obj` will not throw a TypeError, but rather just\n * return the value provided.\n *\n   ```js\n     var values = {name: 'misko', gender: 'male'};\n     var log = [];\n     angular.forEach(values, function(value, key) {\n       this.push(key + ': ' + value);\n     }, log);\n     expect(log).toEqual(['name: misko', 'gender: male']);\n   ```\n *\n * @param {Object|Array} obj Object to iterate over.\n * @param {Function} iterator Iterator function.\n * @param {Object=} context Object to become context (`this`) for the iterator function.\n * @returns {Object|Array} Reference to `obj`.\n */\n\nfunction forEach(obj, iterator, context) {\n  var key, length;\n  if (obj) {\n    if (isFunction(obj)) {\n      for (key in obj) {\n        if (key !== 'prototype' && key !== 'length' && key !== 'name' && obj.hasOwnProperty(key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (isArray(obj) || isArrayLike(obj)) {\n      var isPrimitive = typeof obj !== 'object';\n      for (key = 0, length = obj.length; key < length; key++) {\n        if (isPrimitive || key in obj) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else if (obj.forEach && obj.forEach !== forEach) {\n        obj.forEach(iterator, context, obj);\n    } else if (isBlankObject(obj)) {\n      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty\n      for (key in obj) {\n        iterator.call(context, obj[key], key, obj);\n      }\n    } else if (typeof obj.hasOwnProperty === 'function') {\n      // Slow path for objects inheriting Object.prototype, hasOwnProperty check needed\n      for (key in obj) {\n        if (obj.hasOwnProperty(key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    } else {\n      // Slow path for objects which do not have a method `hasOwnProperty`\n      for (key in obj) {\n        if (hasOwnProperty.call(obj, key)) {\n          iterator.call(context, obj[key], key, obj);\n        }\n      }\n    }\n  }\n  return obj;\n}\n\nfunction forEachSorted(obj, iterator, context) {\n  var keys = Object.keys(obj).sort();\n  for (var i = 0; i < keys.length; i++) {\n    iterator.call(context, obj[keys[i]], keys[i]);\n  }\n  return keys;\n}\n\n\n/**\n * when using forEach the params are value, key, but it is often useful to have key, value.\n * @param {function(string, *)} iteratorFn\n * @returns {function(*, string)}\n */\nfunction reverseParams(iteratorFn) {\n  return function(value, key) {iteratorFn(key, value);};\n}\n\n/**\n * A consistent way of creating unique IDs in angular.\n *\n * Using simple numbers allows us to generate 28.6 million unique ids per second for 10 years before\n * we hit number precision issues in JavaScript.\n *\n * Math.pow(2,53) / 60 / 60 / 24 / 365 / 10 = 28.6M\n *\n * @returns {number} an unique alpha-numeric string\n */\nfunction nextUid() {\n  return ++uid;\n}\n\n\n/**\n * Set or clear the hashkey for an object.\n * @param obj object\n * @param h the hashkey (!truthy to delete the hashkey)\n */\nfunction setHashKey(obj, h) {\n  if (h) {\n    obj.$$hashKey = h;\n  } else {\n    delete obj.$$hashKey;\n  }\n}\n\n\nfunction baseExtend(dst, objs, deep) {\n  var h = dst.$$hashKey;\n\n  for (var i = 0, ii = objs.length; i < ii; ++i) {\n    var obj = objs[i];\n    if (!isObject(obj) && !isFunction(obj)) continue;\n    var keys = Object.keys(obj);\n    for (var j = 0, jj = keys.length; j < jj; j++) {\n      var key = keys[j];\n      var src = obj[key];\n\n      if (deep && isObject(src)) {\n        if (isDate(src)) {\n          dst[key] = new Date(src.valueOf());\n        } else if (isRegExp(src)) {\n          dst[key] = new RegExp(src);\n        } else if (src.nodeName) {\n          dst[key] = src.cloneNode(true);\n        } else if (isElement(src)) {\n          dst[key] = src.clone();\n        } else {\n          if (key !== '__proto__') {\n            if (!isObject(dst[key])) dst[key] = isArray(src) ? [] : {};\n            baseExtend(dst[key], [src], true);\n          }\n        }\n      } else {\n        dst[key] = src;\n      }\n    }\n  }\n\n  setHashKey(dst, h);\n  return dst;\n}\n\n/**\n * @ngdoc function\n * @name angular.extend\n * @module ng\n * @kind function\n *\n * @description\n * Extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n * to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so\n * by passing an empty object as the target: `var object = angular.extend({}, object1, object2)`.\n *\n * **Note:** Keep in mind that `angular.extend` does not support recursive merge (deep copy). Use\n * {@link angular.merge} for this.\n *\n * @param {Object} dst Destination object.\n * @param {...Object} src Source object(s).\n * @returns {Object} Reference to `dst`.\n */\nfunction extend(dst) {\n  return baseExtend(dst, slice.call(arguments, 1), false);\n}\n\n\n/**\n* @ngdoc function\n* @name angular.merge\n* @module ng\n* @kind function\n*\n* @description\n* Deeply extends the destination object `dst` by copying own enumerable properties from the `src` object(s)\n* to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so\n* by passing an empty object as the target: `var object = angular.merge({}, object1, object2)`.\n*\n* Unlike {@link angular.extend extend()}, `merge()` recursively descends into object properties of source\n* objects, performing a deep copy.\n*\n* @deprecated\n* sinceVersion=\"1.6.5\"\n* This function is deprecated, but will not be removed in the 1.x lifecycle.\n* There are edge cases (see {@link angular.merge#known-issues known issues}) that are not\n* supported by this function. We suggest using another, similar library for all-purpose merging,\n* such as [lodash's merge()](https://lodash.com/docs/4.17.4#merge).\n*\n* @knownIssue\n* This is a list of (known) object types that are not handled correctly by this function:\n* - [`Blob`](https://developer.mozilla.org/docs/Web/API/Blob)\n* - [`MediaStream`](https://developer.mozilla.org/docs/Web/API/MediaStream)\n* - [`CanvasGradient`](https://developer.mozilla.org/docs/Web/API/CanvasGradient)\n* - AngularJS {@link $rootScope.Scope scopes};\n*\n* `angular.merge` also does not support merging objects with circular references.\n*\n* @param {Object} dst Destination object.\n* @param {...Object} src Source object(s).\n* @returns {Object} Reference to `dst`.\n*/\nfunction merge(dst) {\n  return baseExtend(dst, slice.call(arguments, 1), true);\n}\n\n\n\nfunction toInt(str) {\n  return parseInt(str, 10);\n}\n\nvar isNumberNaN = Number.isNaN || function isNumberNaN(num) {\n  // eslint-disable-next-line no-self-compare\n  return num !== num;\n};\n\n\nfunction inherit(parent, extra) {\n  return extend(Object.create(parent), extra);\n}\n\n/**\n * @ngdoc function\n * @name angular.noop\n * @module ng\n * @kind function\n *\n * @description\n * A function that performs no operations. This function can be useful when writing code in the\n * functional style.\n   ```js\n     function foo(callback) {\n       var result = calculateResult();\n       (callback || angular.noop)(result);\n     }\n   ```\n */\nfunction noop() {}\nnoop.$inject = [];\n\n\n/**\n * @ngdoc function\n * @name angular.identity\n * @module ng\n * @kind function\n *\n * @description\n * A function that returns its first argument. This function is useful when writing code in the\n * functional style.\n *\n   ```js\n   function transformer(transformationFn, value) {\n     return (transformationFn || angular.identity)(value);\n   };\n\n   // E.g.\n   function getResult(fn, input) {\n     return (fn || angular.identity)(input);\n   };\n\n   getResult(function(n) { return n * 2; }, 21);   // returns 42\n   getResult(null, 21);                            // returns 21\n   getResult(undefined, 21);                       // returns 21\n   ```\n *\n * @param {*} value to be returned.\n * @returns {*} the value passed in.\n */\nfunction identity($) {return $;}\nidentity.$inject = [];\n\n\nfunction valueFn(value) {return function valueRef() {return value;};}\n\nfunction hasCustomToString(obj) {\n  return isFunction(obj.toString) && obj.toString !== toString;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isUndefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is undefined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is undefined.\n */\nfunction isUndefined(value) {return typeof value === 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDefined\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is defined.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is defined.\n */\nfunction isDefined(value) {return typeof value !== 'undefined';}\n\n\n/**\n * @ngdoc function\n * @name angular.isObject\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Object`. Unlike `typeof` in JavaScript, `null`s are not\n * considered to be objects. Note that JavaScript arrays are objects.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Object` but not `null`.\n */\nfunction isObject(value) {\n  // http://jsperf.com/isobject4\n  return value !== null && typeof value === 'object';\n}\n\n\n/**\n * Determine if a value is an object with a null prototype\n *\n * @returns {boolean} True if `value` is an `Object` with a null prototype\n */\nfunction isBlankObject(value) {\n  return value !== null && typeof value === 'object' && !getPrototypeOf(value);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isString\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `String`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `String`.\n */\nfunction isString(value) {return typeof value === 'string';}\n\n\n/**\n * @ngdoc function\n * @name angular.isNumber\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Number`.\n *\n * This includes the \"special\" numbers `NaN`, `+Infinity` and `-Infinity`.\n *\n * If you wish to exclude these then you can use the native\n * [`isFinite'](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isFinite)\n * method.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Number`.\n */\nfunction isNumber(value) {return typeof value === 'number';}\n\n\n/**\n * @ngdoc function\n * @name angular.isDate\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a value is a date.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Date`.\n */\nfunction isDate(value) {\n  return toString.call(value) === '[object Date]';\n}\n\n\n/**\n * @ngdoc function\n * @name angular.isArray\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is an `Array`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Array`.\n */\nfunction isArray(arr) {\n  return Array.isArray(arr) || arr instanceof Array;\n}\n\n/**\n * @description\n * Determines if a reference is an `Error`.\n * Loosely based on https://www.npmjs.com/package/iserror\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is an `Error`.\n */\nfunction isError(value) {\n  var tag = toString.call(value);\n  switch (tag) {\n    case '[object Error]': return true;\n    case '[object Exception]': return true;\n    case '[object DOMException]': return true;\n    default: return value instanceof Error;\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.isFunction\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a `Function`.\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `Function`.\n */\nfunction isFunction(value) {return typeof value === 'function';}\n\n\n/**\n * Determines if a value is a regular expression object.\n *\n * @private\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a `RegExp`.\n */\nfunction isRegExp(value) {\n  return toString.call(value) === '[object RegExp]';\n}\n\n\n/**\n * Checks if `obj` is a window object.\n *\n * @private\n * @param {*} obj Object to check\n * @returns {boolean} True if `obj` is a window obj.\n */\nfunction isWindow(obj) {\n  return obj && obj.window === obj;\n}\n\n\nfunction isScope(obj) {\n  return obj && obj.$evalAsync && obj.$watch;\n}\n\n\nfunction isFile(obj) {\n  return toString.call(obj) === '[object File]';\n}\n\n\nfunction isFormData(obj) {\n  return toString.call(obj) === '[object FormData]';\n}\n\n\nfunction isBlob(obj) {\n  return toString.call(obj) === '[object Blob]';\n}\n\n\nfunction isBoolean(value) {\n  return typeof value === 'boolean';\n}\n\n\nfunction isPromiseLike(obj) {\n  return obj && isFunction(obj.then);\n}\n\n\nvar TYPED_ARRAY_REGEXP = /^\\[object (?:Uint8|Uint8Clamped|Uint16|Uint32|Int8|Int16|Int32|Float32|Float64)Array]$/;\nfunction isTypedArray(value) {\n  return value && isNumber(value.length) && TYPED_ARRAY_REGEXP.test(toString.call(value));\n}\n\nfunction isArrayBuffer(obj) {\n  return toString.call(obj) === '[object ArrayBuffer]';\n}\n\n\nvar trim = function(value) {\n  return isString(value) ? value.trim() : value;\n};\n\n// Copied from:\n// http://docs.closure-library.googlecode.com/git/local_closure_goog_string_string.js.source.html#line1021\n// Prereq: s is a string.\nvar escapeForRegexp = function(s) {\n  return s\n    .replace(/([-()[\\]{}+?*.$^|,:#<!\\\\])/g, '\\\\$1')\n    // eslint-disable-next-line no-control-regex\n    .replace(/\\x08/g, '\\\\x08');\n};\n\n\n/**\n * @ngdoc function\n * @name angular.isElement\n * @module ng\n * @kind function\n *\n * @description\n * Determines if a reference is a DOM element (or wrapped jQuery element).\n *\n * @param {*} value Reference to check.\n * @returns {boolean} True if `value` is a DOM element (or wrapped jQuery element).\n */\nfunction isElement(node) {\n  return !!(node &&\n    (node.nodeName  // We are a direct element.\n    || (node.prop && node.attr && node.find)));  // We have an on and find method part of jQuery API.\n}\n\n/**\n * @param str 'key1,key2,...'\n * @returns {object} in the form of {key1:true, key2:true, ...}\n */\nfunction makeMap(str) {\n  var obj = {}, items = str.split(','), i;\n  for (i = 0; i < items.length; i++) {\n    obj[items[i]] = true;\n  }\n  return obj;\n}\n\n\nfunction nodeName_(element) {\n  return lowercase(element.nodeName || (element[0] && element[0].nodeName));\n}\n\nfunction includes(array, obj) {\n  return Array.prototype.indexOf.call(array, obj) !== -1;\n}\n\nfunction arrayRemove(array, value) {\n  var index = array.indexOf(value);\n  if (index >= 0) {\n    array.splice(index, 1);\n  }\n  return index;\n}\n\n/**\n * @ngdoc function\n * @name angular.copy\n * @module ng\n * @kind function\n *\n * @description\n * Creates a deep copy of `source`, which should be an object or an array. This functions is used\n * internally, mostly in the change-detection code. It is not intended as an all-purpose copy\n * function, and has several limitations (see below).\n *\n * * If no destination is supplied, a copy of the object or array is created.\n * * If a destination is provided, all of its elements (for arrays) or properties (for objects)\n *   are deleted and then all elements/properties from the source are copied to it.\n * * If `source` is not an object or array (inc. `null` and `undefined`), `source` is returned.\n * * If `source` is identical to `destination` an exception will be thrown.\n *\n * <br />\n *\n * <div class=\"alert alert-warning\">\n *   Only enumerable properties are taken into account. Non-enumerable properties (both on `source`\n *   and on `destination`) will be ignored.\n * </div>\n *\n * <div class=\"alert alert-warning\">\n *   `angular.copy` does not check if destination and source are of the same type. It's the\n *   developer's responsibility to make sure they are compatible.\n * </div>\n *\n * @knownIssue\n * This is a non-exhaustive list of object types / features that are not handled correctly by\n * `angular.copy`. Note that since this functions is used by the change detection code, this\n * means binding or watching objects of these types (or that include these types) might not work\n * correctly.\n * - [`File`](https://developer.mozilla.org/docs/Web/API/File)\n * - [`Map`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Map)\n * - [`ImageData`](https://developer.mozilla.org/docs/Web/API/ImageData)\n * - [`MediaStream`](https://developer.mozilla.org/docs/Web/API/MediaStream)\n * - [`Set`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Set)\n * - [`WeakMap`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakMap)\n * - [`getter`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/get)/\n *   [`setter`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/set)\n *\n * @param {*} source The source that will be used to make a copy. Can be any type, including\n *     primitives, `null`, and `undefined`.\n * @param {(Object|Array)=} destination Destination into which the source is copied. If provided,\n *     must be of the same type as `source`.\n * @returns {*} The copy or updated `destination`, if `destination` was specified.\n *\n * @example\n  <example module=\"copyExample\" name=\"angular-copy\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form novalidate class=\"simple-form\">\n          <label>Name: <input type=\"text\" ng-model=\"user.name\" /></label><br />\n          <label>Age:  <input type=\"number\" ng-model=\"user.age\" /></label><br />\n          Gender: <label><input type=\"radio\" ng-model=\"user.gender\" value=\"male\" />male</label>\n                  <label><input type=\"radio\" ng-model=\"user.gender\" value=\"female\" />female</label><br />\n          <button ng-click=\"reset()\">RESET</button>\n          <button ng-click=\"update(user)\">SAVE</button>\n        </form>\n        <pre>form = {{user | json}}</pre>\n        <pre>leader = {{leader | json}}</pre>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      // Module: copyExample\n      angular.\n        module('copyExample', []).\n        controller('ExampleController', ['$scope', function($scope) {\n          $scope.leader = {};\n\n          $scope.reset = function() {\n            // Example with 1 argument\n            $scope.user = angular.copy($scope.leader);\n          };\n\n          $scope.update = function(user) {\n            // Example with 2 arguments\n            angular.copy(user, $scope.leader);\n          };\n\n          $scope.reset();\n        }]);\n    </file>\n  </example>\n */\nfunction copy(source, destination, maxDepth) {\n  var stackSource = [];\n  var stackDest = [];\n  maxDepth = isValidObjectMaxDepth(maxDepth) ? maxDepth : NaN;\n\n  if (destination) {\n    if (isTypedArray(destination) || isArrayBuffer(destination)) {\n      throw ngMinErr('cpta', 'Can\\'t copy! TypedArray destination cannot be mutated.');\n    }\n    if (source === destination) {\n      throw ngMinErr('cpi', 'Can\\'t copy! Source and destination are identical.');\n    }\n\n    // Empty the destination object\n    if (isArray(destination)) {\n      destination.length = 0;\n    } else {\n      forEach(destination, function(value, key) {\n        if (key !== '$$hashKey') {\n          delete destination[key];\n        }\n      });\n    }\n\n    stackSource.push(source);\n    stackDest.push(destination);\n    return copyRecurse(source, destination, maxDepth);\n  }\n\n  return copyElement(source, maxDepth);\n\n  function copyRecurse(source, destination, maxDepth) {\n    maxDepth--;\n    if (maxDepth < 0) {\n      return '...';\n    }\n    var h = destination.$$hashKey;\n    var key;\n    if (isArray(source)) {\n      for (var i = 0, ii = source.length; i < ii; i++) {\n        destination.push(copyElement(source[i], maxDepth));\n      }\n    } else if (isBlankObject(source)) {\n      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty\n      for (key in source) {\n        destination[key] = copyElement(source[key], maxDepth);\n      }\n    } else if (source && typeof source.hasOwnProperty === 'function') {\n      // Slow path, which must rely on hasOwnProperty\n      for (key in source) {\n        if (source.hasOwnProperty(key)) {\n          destination[key] = copyElement(source[key], maxDepth);\n        }\n      }\n    } else {\n      // Slowest path --- hasOwnProperty can't be called as a method\n      for (key in source) {\n        if (hasOwnProperty.call(source, key)) {\n          destination[key] = copyElement(source[key], maxDepth);\n        }\n      }\n    }\n    setHashKey(destination, h);\n    return destination;\n  }\n\n  function copyElement(source, maxDepth) {\n    // Simple values\n    if (!isObject(source)) {\n      return source;\n    }\n\n    // Already copied values\n    var index = stackSource.indexOf(source);\n    if (index !== -1) {\n      return stackDest[index];\n    }\n\n    if (isWindow(source) || isScope(source)) {\n      throw ngMinErr('cpws',\n        'Can\\'t copy! Making copies of Window or Scope instances is not supported.');\n    }\n\n    var needsRecurse = false;\n    var destination = copyType(source);\n\n    if (destination === undefined) {\n      destination = isArray(source) ? [] : Object.create(getPrototypeOf(source));\n      needsRecurse = true;\n    }\n\n    stackSource.push(source);\n    stackDest.push(destination);\n\n    return needsRecurse\n      ? copyRecurse(source, destination, maxDepth)\n      : destination;\n  }\n\n  function copyType(source) {\n    switch (toString.call(source)) {\n      case '[object Int8Array]':\n      case '[object Int16Array]':\n      case '[object Int32Array]':\n      case '[object Float32Array]':\n      case '[object Float64Array]':\n      case '[object Uint8Array]':\n      case '[object Uint8ClampedArray]':\n      case '[object Uint16Array]':\n      case '[object Uint32Array]':\n        return new source.constructor(copyElement(source.buffer), source.byteOffset, source.length);\n\n      case '[object ArrayBuffer]':\n        // Support: IE10\n        if (!source.slice) {\n          // If we're in this case we know the environment supports ArrayBuffer\n          /* eslint-disable no-undef */\n          var copied = new ArrayBuffer(source.byteLength);\n          new Uint8Array(copied).set(new Uint8Array(source));\n          /* eslint-enable */\n          return copied;\n        }\n        return source.slice(0);\n\n      case '[object Boolean]':\n      case '[object Number]':\n      case '[object String]':\n      case '[object Date]':\n        return new source.constructor(source.valueOf());\n\n      case '[object RegExp]':\n        var re = new RegExp(source.source, source.toString().match(/[^/]*$/)[0]);\n        re.lastIndex = source.lastIndex;\n        return re;\n\n      case '[object Blob]':\n        return new source.constructor([source], {type: source.type});\n    }\n\n    if (isFunction(source.cloneNode)) {\n      return source.cloneNode(true);\n    }\n  }\n}\n\n\n// eslint-disable-next-line no-self-compare\nfunction simpleCompare(a, b) { return a === b || (a !== a && b !== b); }\n\n\n/**\n * @ngdoc function\n * @name angular.equals\n * @module ng\n * @kind function\n *\n * @description\n * Determines if two objects or two values are equivalent. Supports value types, regular\n * expressions, arrays and objects.\n *\n * Two objects or values are considered equivalent if at least one of the following is true:\n *\n * * Both objects or values pass `===` comparison.\n * * Both objects or values are of the same type and all of their properties are equal by\n *   comparing them with `angular.equals`.\n * * Both values are NaN. (In JavaScript, NaN == NaN => false. But we consider two NaN as equal)\n * * Both values represent the same regular expression (In JavaScript,\n *   /abc/ == /abc/ => false. But we consider two regular expressions as equal when their textual\n *   representation matches).\n *\n * During a property comparison, properties of `function` type and properties with names\n * that begin with `$` are ignored.\n *\n * Scope and DOMWindow objects are being compared only by identify (`===`).\n *\n * @param {*} o1 Object or value to compare.\n * @param {*} o2 Object or value to compare.\n * @returns {boolean} True if arguments are equal.\n *\n * @example\n   <example module=\"equalsExample\" name=\"equalsExample\">\n     <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <form novalidate>\n          <h3>User 1</h3>\n          Name: <input type=\"text\" ng-model=\"user1.name\">\n          Age: <input type=\"number\" ng-model=\"user1.age\">\n\n          <h3>User 2</h3>\n          Name: <input type=\"text\" ng-model=\"user2.name\">\n          Age: <input type=\"number\" ng-model=\"user2.age\">\n\n          <div>\n            <br/>\n            <input type=\"button\" value=\"Compare\" ng-click=\"compare()\">\n          </div>\n          User 1: <pre>{{user1 | json}}</pre>\n          User 2: <pre>{{user2 | json}}</pre>\n          Equal: <pre>{{result}}</pre>\n        </form>\n      </div>\n    </file>\n    <file name=\"script.js\">\n        angular.module('equalsExample', []).controller('ExampleController', ['$scope', function($scope) {\n          $scope.user1 = {};\n          $scope.user2 = {};\n          $scope.compare = function() {\n            $scope.result = angular.equals($scope.user1, $scope.user2);\n          };\n        }]);\n    </file>\n  </example>\n */\nfunction equals(o1, o2) {\n  if (o1 === o2) return true;\n  if (o1 === null || o2 === null) return false;\n  // eslint-disable-next-line no-self-compare\n  if (o1 !== o1 && o2 !== o2) return true; // NaN === NaN\n  var t1 = typeof o1, t2 = typeof o2, length, key, keySet;\n  if (t1 === t2 && t1 === 'object') {\n    if (isArray(o1)) {\n      if (!isArray(o2)) return false;\n      if ((length = o1.length) === o2.length) {\n        for (key = 0; key < length; key++) {\n          if (!equals(o1[key], o2[key])) return false;\n        }\n        return true;\n      }\n    } else if (isDate(o1)) {\n      if (!isDate(o2)) return false;\n      return simpleCompare(o1.getTime(), o2.getTime());\n    } else if (isRegExp(o1)) {\n      if (!isRegExp(o2)) return false;\n      return o1.toString() === o2.toString();\n    } else {\n      if (isScope(o1) || isScope(o2) || isWindow(o1) || isWindow(o2) ||\n        isArray(o2) || isDate(o2) || isRegExp(o2)) return false;\n      keySet = createMap();\n      for (key in o1) {\n        if (key.charAt(0) === '$' || isFunction(o1[key])) continue;\n        if (!equals(o1[key], o2[key])) return false;\n        keySet[key] = true;\n      }\n      for (key in o2) {\n        if (!(key in keySet) &&\n            key.charAt(0) !== '$' &&\n            isDefined(o2[key]) &&\n            !isFunction(o2[key])) return false;\n      }\n      return true;\n    }\n  }\n  return false;\n}\n\nvar csp = function() {\n  if (!isDefined(csp.rules)) {\n\n\n    var ngCspElement = (window.document.querySelector('[ng-csp]') ||\n                    window.document.querySelector('[data-ng-csp]'));\n\n    if (ngCspElement) {\n      var ngCspAttribute = ngCspElement.getAttribute('ng-csp') ||\n                    ngCspElement.getAttribute('data-ng-csp');\n      csp.rules = {\n        noUnsafeEval: !ngCspAttribute || (ngCspAttribute.indexOf('no-unsafe-eval') !== -1),\n        noInlineStyle: !ngCspAttribute || (ngCspAttribute.indexOf('no-inline-style') !== -1)\n      };\n    } else {\n      csp.rules = {\n        noUnsafeEval: noUnsafeEval(),\n        noInlineStyle: false\n      };\n    }\n  }\n\n  return csp.rules;\n\n  function noUnsafeEval() {\n    try {\n      // eslint-disable-next-line no-new, no-new-func\n      new Function('');\n      return false;\n    } catch (e) {\n      return true;\n    }\n  }\n};\n\n/**\n * @ngdoc directive\n * @module ng\n * @name ngJq\n *\n * @element ANY\n * @param {string=} ngJq the name of the library available under `window`\n * to be used for angular.element\n * @description\n * Use this directive to force the angular.element library.  This should be\n * used to force either jqLite by leaving ng-jq blank or setting the name of\n * the jquery variable under window (eg. jQuery).\n *\n * Since AngularJS looks for this directive when it is loaded (doesn't wait for the\n * DOMContentLoaded event), it must be placed on an element that comes before the script\n * which loads angular. Also, only the first instance of `ng-jq` will be used and all\n * others ignored.\n *\n * @example\n * This example shows how to force jqLite using the `ngJq` directive to the `html` tag.\n ```html\n <!doctype html>\n <html ng-app ng-jq>\n ...\n ...\n </html>\n ```\n * @example\n * This example shows how to use a jQuery based library of a different name.\n * The library name must be available at the top most 'window'.\n ```html\n <!doctype html>\n <html ng-app ng-jq=\"jQueryLib\">\n ...\n ...\n </html>\n ```\n */\nvar jq = function() {\n  if (isDefined(jq.name_)) return jq.name_;\n  var el;\n  var i, ii = ngAttrPrefixes.length, prefix, name;\n  for (i = 0; i < ii; ++i) {\n    prefix = ngAttrPrefixes[i];\n    el = window.document.querySelector('[' + prefix.replace(':', '\\\\:') + 'jq]');\n    if (el) {\n      name = el.getAttribute(prefix + 'jq');\n      break;\n    }\n  }\n\n  return (jq.name_ = name);\n};\n\nfunction concat(array1, array2, index) {\n  return array1.concat(slice.call(array2, index));\n}\n\nfunction sliceArgs(args, startIndex) {\n  return slice.call(args, startIndex || 0);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.bind\n * @module ng\n * @kind function\n *\n * @description\n * Returns a function which calls function `fn` bound to `self` (`self` becomes the `this` for\n * `fn`). You can supply optional `args` that are prebound to the function. This feature is also\n * known as [partial application](http://en.wikipedia.org/wiki/Partial_application), as\n * distinguished from [function currying](http://en.wikipedia.org/wiki/Currying#Contrast_with_partial_function_application).\n *\n * @param {Object} self Context which `fn` should be evaluated in.\n * @param {function()} fn Function to be bound.\n * @param {...*} args Optional arguments to be prebound to the `fn` function call.\n * @returns {function()} Function that wraps the `fn` with all the specified bindings.\n */\nfunction bind(self, fn) {\n  var curryArgs = arguments.length > 2 ? sliceArgs(arguments, 2) : [];\n  if (isFunction(fn) && !(fn instanceof RegExp)) {\n    return curryArgs.length\n      ? function() {\n          return arguments.length\n            ? fn.apply(self, concat(curryArgs, arguments, 0))\n            : fn.apply(self, curryArgs);\n        }\n      : function() {\n          return arguments.length\n            ? fn.apply(self, arguments)\n            : fn.call(self);\n        };\n  } else {\n    // In IE, native methods are not functions so they cannot be bound (note: they don't need to be).\n    return fn;\n  }\n}\n\n\nfunction toJsonReplacer(key, value) {\n  var val = value;\n\n  if (typeof key === 'string' && key.charAt(0) === '$' && key.charAt(1) === '$') {\n    val = undefined;\n  } else if (isWindow(value)) {\n    val = '$WINDOW';\n  } else if (value &&  window.document === value) {\n    val = '$DOCUMENT';\n  } else if (isScope(value)) {\n    val = '$SCOPE';\n  }\n\n  return val;\n}\n\n\n/**\n * @ngdoc function\n * @name angular.toJson\n * @module ng\n * @kind function\n *\n * @description\n * Serializes input into a JSON-formatted string. Properties with leading $$ characters will be\n * stripped since AngularJS uses this notation internally.\n *\n * @param {Object|Array|Date|string|number|boolean} obj Input to be serialized into JSON.\n * @param {boolean|number} [pretty=2] If set to true, the JSON output will contain newlines and whitespace.\n *    If set to an integer, the JSON output will contain that many spaces per indentation.\n * @returns {string|undefined} JSON-ified string representing `obj`.\n * @knownIssue\n *\n * The Safari browser throws a `RangeError` instead of returning `null` when it tries to stringify a `Date`\n * object with an invalid date value. The only reliable way to prevent this is to monkeypatch the\n * `Date.prototype.toJSON` method as follows:\n *\n * ```\n * var _DatetoJSON = Date.prototype.toJSON;\n * Date.prototype.toJSON = function() {\n *   try {\n *     return _DatetoJSON.call(this);\n *   } catch(e) {\n *     if (e instanceof RangeError) {\n *       return null;\n *     }\n *     throw e;\n *   }\n * };\n * ```\n *\n * See https://github.com/angular/angular.js/pull/14221 for more information.\n */\nfunction toJson(obj, pretty) {\n  if (isUndefined(obj)) return undefined;\n  if (!isNumber(pretty)) {\n    pretty = pretty ? 2 : null;\n  }\n  return JSON.stringify(obj, toJsonReplacer, pretty);\n}\n\n\n/**\n * @ngdoc function\n * @name angular.fromJson\n * @module ng\n * @kind function\n *\n * @description\n * Deserializes a JSON string.\n *\n * @param {string} json JSON string to deserialize.\n * @returns {Object|Array|string|number} Deserialized JSON string.\n */\nfunction fromJson(json) {\n  return isString(json)\n      ? JSON.parse(json)\n      : json;\n}\n\n\nvar ALL_COLONS = /:/g;\nfunction timezoneToOffset(timezone, fallback) {\n  // Support: IE 9-11 only, Edge 13-15+\n  // IE/Edge do not \"understand\" colon (`:`) in timezone\n  timezone = timezone.replace(ALL_COLONS, '');\n  var requestedTimezoneOffset = Date.parse('Jan 01, 1970 00:00:00 ' + timezone) / 60000;\n  return isNumberNaN(requestedTimezoneOffset) ? fallback : requestedTimezoneOffset;\n}\n\n\nfunction addDateMinutes(date, minutes) {\n  date = new Date(date.getTime());\n  date.setMinutes(date.getMinutes() + minutes);\n  return date;\n}\n\n\nfunction convertTimezoneToLocal(date, timezone, reverse) {\n  reverse = reverse ? -1 : 1;\n  var dateTimezoneOffset = date.getTimezoneOffset();\n  var timezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n  return addDateMinutes(date, reverse * (timezoneOffset - dateTimezoneOffset));\n}\n\n\n/**\n * @returns {string} Returns the string representation of the element.\n */\nfunction startingTag(element) {\n  element = jqLite(element).clone().empty();\n  var elemHtml = jqLite('<div></div>').append(element).html();\n  try {\n    return element[0].nodeType === NODE_TYPE_TEXT ? lowercase(elemHtml) :\n        elemHtml.\n          match(/^(<[^>]+>)/)[1].\n          replace(/^<([\\w-]+)/, function(match, nodeName) {return '<' + lowercase(nodeName);});\n  } catch (e) {\n    return lowercase(elemHtml);\n  }\n\n}\n\n\n/////////////////////////////////////////////////\n\n/**\n * Tries to decode the URI component without throwing an exception.\n *\n * @private\n * @param str value potential URI component to check.\n * @returns {boolean} True if `value` can be decoded\n * with the decodeURIComponent function.\n */\nfunction tryDecodeURIComponent(value) {\n  try {\n    return decodeURIComponent(value);\n  } catch (e) {\n    // Ignore any invalid uri component.\n  }\n}\n\n\n/**\n * Parses an escaped url query string into key-value pairs.\n * @returns {Object.<string,boolean|Array>}\n */\nfunction parseKeyValue(/**string*/keyValue) {\n  var obj = {};\n  forEach((keyValue || '').split('&'), function(keyValue) {\n    var splitPoint, key, val;\n    if (keyValue) {\n      key = keyValue = keyValue.replace(/\\+/g,'%20');\n      splitPoint = keyValue.indexOf('=');\n      if (splitPoint !== -1) {\n        key = keyValue.substring(0, splitPoint);\n        val = keyValue.substring(splitPoint + 1);\n      }\n      key = tryDecodeURIComponent(key);\n      if (isDefined(key)) {\n        val = isDefined(val) ? tryDecodeURIComponent(val) : true;\n        if (!hasOwnProperty.call(obj, key)) {\n          obj[key] = val;\n        } else if (isArray(obj[key])) {\n          obj[key].push(val);\n        } else {\n          obj[key] = [obj[key],val];\n        }\n      }\n    }\n  });\n  return obj;\n}\n\nfunction toKeyValue(obj) {\n  var parts = [];\n  forEach(obj, function(value, key) {\n    if (isArray(value)) {\n      forEach(value, function(arrayValue) {\n        parts.push(encodeUriQuery(key, true) +\n                   (arrayValue === true ? '' : '=' + encodeUriQuery(arrayValue, true)));\n      });\n    } else {\n    parts.push(encodeUriQuery(key, true) +\n               (value === true ? '' : '=' + encodeUriQuery(value, true)));\n    }\n  });\n  return parts.length ? parts.join('&') : '';\n}\n\n\n/**\n * We need our custom method because encodeURIComponent is too aggressive and doesn't follow\n * http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path\n * segments:\n *    segment       = *pchar\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriSegment(val) {\n  return encodeUriQuery(val, true).\n             replace(/%26/gi, '&').\n             replace(/%3D/gi, '=').\n             replace(/%2B/gi, '+');\n}\n\n\n/**\n * This method is intended for encoding *key* or *value* parts of query component. We need a custom\n * method because encodeURIComponent is too aggressive and encodes stuff that doesn't have to be\n * encoded per http://tools.ietf.org/html/rfc3986:\n *    query         = *( pchar / \"/\" / \"?\" )\n *    pchar         = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n *    unreserved    = ALPHA / DIGIT / \"-\" / \".\" / \"_\" / \"~\"\n *    pct-encoded   = \"%\" HEXDIG HEXDIG\n *    sub-delims    = \"!\" / \"$\" / \"&\" / \"'\" / \"(\" / \")\"\n *                     / \"*\" / \"+\" / \",\" / \";\" / \"=\"\n */\nfunction encodeUriQuery(val, pctEncodeSpaces) {\n  return encodeURIComponent(val).\n             replace(/%40/gi, '@').\n             replace(/%3A/gi, ':').\n             replace(/%24/g, '$').\n             replace(/%2C/gi, ',').\n             replace(/%3B/gi, ';').\n             replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));\n}\n\nvar ngAttrPrefixes = ['ng-', 'data-ng-', 'ng:', 'x-ng-'];\n\nfunction getNgAttribute(element, ngAttr) {\n  var attr, i, ii = ngAttrPrefixes.length;\n  for (i = 0; i < ii; ++i) {\n    attr = ngAttrPrefixes[i] + ngAttr;\n    if (isString(attr = element.getAttribute(attr))) {\n      return attr;\n    }\n  }\n  return null;\n}\n\nfunction allowAutoBootstrap(document) {\n  var script = document.currentScript;\n\n  if (!script) {\n    // Support: IE 9-11 only\n    // IE does not have `document.currentScript`\n    return true;\n  }\n\n  // If the `currentScript` property has been clobbered just return false, since this indicates a probable attack\n  if (!(script instanceof window.HTMLScriptElement || script instanceof window.SVGScriptElement)) {\n    return false;\n  }\n\n  var attributes = script.attributes;\n  var srcs = [attributes.getNamedItem('src'), attributes.getNamedItem('href'), attributes.getNamedItem('xlink:href')];\n\n  return srcs.every(function(src) {\n    if (!src) {\n      return true;\n    }\n    if (!src.value) {\n      return false;\n    }\n\n    var link = document.createElement('a');\n    link.href = src.value;\n\n    if (document.location.origin === link.origin) {\n      // Same-origin resources are always allowed, even for banned URL schemes.\n      return true;\n    }\n    // Disabled bootstrapping unless angular.js was loaded from a known scheme used on the web.\n    // This is to prevent angular.js bundled with browser extensions from being used to bypass the\n    // content security policy in web pages and other browser extensions.\n    switch (link.protocol) {\n      case 'http:':\n      case 'https:':\n      case 'ftp:':\n      case 'blob:':\n      case 'file:':\n      case 'data:':\n        return true;\n      default:\n        return false;\n    }\n  });\n}\n\n// Cached as it has to run during loading so that document.currentScript is available.\nvar isAutoBootstrapAllowed = allowAutoBootstrap(window.document);\n\n/**\n * @ngdoc directive\n * @name ngApp\n * @module ng\n *\n * @element ANY\n * @param {angular.Module} ngApp an optional application\n *   {@link angular.module module} name to load.\n * @param {boolean=} ngStrictDi if this attribute is present on the app element, the injector will be\n *   created in \"strict-di\" mode. This means that the application will fail to invoke functions which\n *   do not use explicit function annotation (and are thus unsuitable for minification), as described\n *   in {@link guide/di the Dependency Injection guide}, and useful debugging info will assist in\n *   tracking down the root of these bugs.\n *\n * @description\n *\n * Use this directive to **auto-bootstrap** an AngularJS application. The `ngApp` directive\n * designates the **root element** of the application and is typically placed near the root element\n * of the page - e.g. on the `<body>` or `<html>` tags.\n *\n * There are a few things to keep in mind when using `ngApp`:\n * - only one AngularJS application can be auto-bootstrapped per HTML document. The first `ngApp`\n *   found in the document will be used to define the root element to auto-bootstrap as an\n *   application. To run multiple applications in an HTML document you must manually bootstrap them using\n *   {@link angular.bootstrap} instead.\n * - AngularJS applications cannot be nested within each other.\n * - Do not use a directive that uses {@link ng.$compile#transclusion transclusion} on the same element as `ngApp`.\n *   This includes directives such as {@link ng.ngIf `ngIf`}, {@link ng.ngInclude `ngInclude`} and\n *   {@link ngRoute.ngView `ngView`}.\n *   Doing this misplaces the app {@link ng.$rootElement `$rootElement`} and the app's {@link auto.$injector injector},\n *   causing animations to stop working and making the injector inaccessible from outside the app.\n *\n * You can specify an **AngularJS module** to be used as the root module for the application.  This\n * module will be loaded into the {@link auto.$injector} when the application is bootstrapped. It\n * should contain the application code needed or have dependencies on other modules that will\n * contain the code. See {@link angular.module} for more information.\n *\n * In the example below if the `ngApp` directive were not placed on the `html` element then the\n * document would not be compiled, the `AppController` would not be instantiated and the `{{ a+b }}`\n * would not be resolved to `3`.\n *\n * @example\n *\n * ### Simple Usage\n *\n * `ngApp` is the easiest, and most common way to bootstrap an application.\n *\n <example module=\"ngAppDemo\" name=\"ng-app\">\n   <file name=\"index.html\">\n   <div ng-controller=\"ngAppDemoController\">\n     I can add: {{a}} + {{b}} =  {{ a+b }}\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppDemo', []).controller('ngAppDemoController', function($scope) {\n     $scope.a = 1;\n     $scope.b = 2;\n   });\n   </file>\n </example>\n *\n * @example\n *\n * ### With `ngStrictDi`\n *\n * Using `ngStrictDi`, you would see something like this:\n *\n <example ng-app-included=\"true\" name=\"strict-di\">\n   <file name=\"index.html\">\n   <div ng-app=\"ngAppStrictDemo\" ng-strict-di>\n       <div ng-controller=\"GoodController1\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style (see\n              script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"GoodController2\">\n           Name: <input ng-model=\"name\"><br />\n           Hello, {{name}}!\n\n           <p>This renders because the controller does not fail to\n              instantiate, by using explicit annotation style\n              (see script.js for details)\n           </p>\n       </div>\n\n       <div ng-controller=\"BadController\">\n           I can add: {{a}} + {{b}} =  {{ a+b }}\n\n           <p>The controller could not be instantiated, due to relying\n              on automatic function annotations (which are disabled in\n              strict mode). As such, the content of this section is not\n              interpolated, and there should be an error in your web console.\n           </p>\n       </div>\n   </div>\n   </file>\n   <file name=\"script.js\">\n   angular.module('ngAppStrictDemo', [])\n     // BadController will fail to instantiate, due to relying on automatic function annotation,\n     // rather than an explicit annotation\n     .controller('BadController', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     })\n     // Unlike BadController, GoodController1 and GoodController2 will not fail to be instantiated,\n     // due to using explicit annotations using the array style and $inject property, respectively.\n     .controller('GoodController1', ['$scope', function($scope) {\n       $scope.a = 1;\n       $scope.b = 2;\n     }])\n     .controller('GoodController2', GoodController2);\n     function GoodController2($scope) {\n       $scope.name = 'World';\n     }\n     GoodController2.$inject = ['$scope'];\n   </file>\n   <file name=\"style.css\">\n   div[ng-controller] {\n       margin-bottom: 1em;\n       -webkit-border-radius: 4px;\n       border-radius: 4px;\n       border: 1px solid;\n       padding: .5em;\n   }\n   div[ng-controller^=Good] {\n       border-color: #d6e9c6;\n       background-color: #dff0d8;\n       color: #3c763d;\n   }\n   div[ng-controller^=Bad] {\n       border-color: #ebccd1;\n       background-color: #f2dede;\n       color: #a94442;\n       margin-bottom: 0;\n   }\n   </file>\n </example>\n */\nfunction angularInit(element, bootstrap) {\n  var appElement,\n      module,\n      config = {};\n\n  // The element `element` has priority over any other element.\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n\n    if (!appElement && element.hasAttribute && element.hasAttribute(name)) {\n      appElement = element;\n      module = element.getAttribute(name);\n    }\n  });\n  forEach(ngAttrPrefixes, function(prefix) {\n    var name = prefix + 'app';\n    var candidate;\n\n    if (!appElement && (candidate = element.querySelector('[' + name.replace(':', '\\\\:') + ']'))) {\n      appElement = candidate;\n      module = candidate.getAttribute(name);\n    }\n  });\n  if (appElement) {\n    if (!isAutoBootstrapAllowed) {\n      window.console.error('AngularJS: disabling automatic bootstrap. <script> protocol indicates ' +\n          'an extension, document.location.href does not match.');\n      return;\n    }\n    config.strictDi = getNgAttribute(appElement, 'strict-di') !== null;\n    bootstrap(appElement, module ? [module] : [], config);\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.bootstrap\n * @module ng\n * @description\n * Use this function to manually start up AngularJS application.\n *\n * For more information, see the {@link guide/bootstrap Bootstrap guide}.\n *\n * AngularJS will detect if it has been loaded into the browser more than once and only allow the\n * first loaded script to be bootstrapped and will report a warning to the browser console for\n * each of the subsequent scripts. This prevents strange results in applications, where otherwise\n * multiple instances of AngularJS try to work on the DOM.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Protractor based end-to-end tests cannot use this function to bootstrap manually.\n * They must use {@link ng.directive:ngApp ngApp}.\n * </div>\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Do not bootstrap the app on an element with a directive that uses {@link ng.$compile#transclusion transclusion},\n * such as {@link ng.ngIf `ngIf`}, {@link ng.ngInclude `ngInclude`} and {@link ngRoute.ngView `ngView`}.\n * Doing this misplaces the app {@link ng.$rootElement `$rootElement`} and the app's {@link auto.$injector injector},\n * causing animations to stop working and making the injector inaccessible from outside the app.\n * </div>\n *\n * ```html\n * <!doctype html>\n * <html>\n * <body>\n * <div ng-controller=\"WelcomeController\">\n *   {{greeting}}\n * </div>\n *\n * <script src=\"angular.js\"></script>\n * <script>\n *   var app = angular.module('demo', [])\n *   .controller('WelcomeController', function($scope) {\n *       $scope.greeting = 'Welcome!';\n *   });\n *   angular.bootstrap(document, ['demo']);\n * </script>\n * </body>\n * </html>\n * ```\n *\n * @param {DOMElement} element DOM element which is the root of AngularJS application.\n * @param {Array<String|Function|Array>=} modules an array of modules to load into the application.\n *     Each item in the array should be the name of a predefined module or a (DI annotated)\n *     function that will be invoked by the injector as a `config` block.\n *     See: {@link angular.module modules}\n * @param {Object=} config an object for defining configuration options for the application. The\n *     following keys are supported:\n *\n * * `strictDi` - disable automatic function annotation for the application. This is meant to\n *   assist in finding bugs which break minified code. Defaults to `false`.\n *\n * @returns {auto.$injector} Returns the newly created injector for this app.\n */\nfunction bootstrap(element, modules, config) {\n  if (!isObject(config)) config = {};\n  var defaultConfig = {\n    strictDi: false\n  };\n  config = extend(defaultConfig, config);\n  var doBootstrap = function() {\n    element = jqLite(element);\n\n    if (element.injector()) {\n      var tag = (element[0] === window.document) ? 'document' : startingTag(element);\n      // Encode angle brackets to prevent input from being sanitized to empty string #8683.\n      throw ngMinErr(\n          'btstrpd',\n          'App already bootstrapped with this element \\'{0}\\'',\n          tag.replace(/</,'&lt;').replace(/>/,'&gt;'));\n    }\n\n    modules = modules || [];\n    modules.unshift(['$provide', function($provide) {\n      $provide.value('$rootElement', element);\n    }]);\n\n    if (config.debugInfoEnabled) {\n      // Pushing so that this overrides `debugInfoEnabled` setting defined in user's `modules`.\n      modules.push(['$compileProvider', function($compileProvider) {\n        $compileProvider.debugInfoEnabled(true);\n      }]);\n    }\n\n    modules.unshift('ng');\n    var injector = createInjector(modules, config.strictDi);\n    injector.invoke(['$rootScope', '$rootElement', '$compile', '$injector',\n       function bootstrapApply(scope, element, compile, injector) {\n        scope.$apply(function() {\n          element.data('$injector', injector);\n          compile(element)(scope);\n        });\n      }]\n    );\n    return injector;\n  };\n\n  var NG_ENABLE_DEBUG_INFO = /^NG_ENABLE_DEBUG_INFO!/;\n  var NG_DEFER_BOOTSTRAP = /^NG_DEFER_BOOTSTRAP!/;\n\n  if (window && NG_ENABLE_DEBUG_INFO.test(window.name)) {\n    config.debugInfoEnabled = true;\n    window.name = window.name.replace(NG_ENABLE_DEBUG_INFO, '');\n  }\n\n  if (window && !NG_DEFER_BOOTSTRAP.test(window.name)) {\n    return doBootstrap();\n  }\n\n  window.name = window.name.replace(NG_DEFER_BOOTSTRAP, '');\n  angular.resumeBootstrap = function(extraModules) {\n    forEach(extraModules, function(module) {\n      modules.push(module);\n    });\n    return doBootstrap();\n  };\n\n  if (isFunction(angular.resumeDeferredBootstrap)) {\n    angular.resumeDeferredBootstrap();\n  }\n}\n\n/**\n * @ngdoc function\n * @name angular.reloadWithDebugInfo\n * @module ng\n * @description\n * Use this function to reload the current application with debug information turned on.\n * This takes precedence over a call to `$compileProvider.debugInfoEnabled(false)`.\n *\n * See {@link ng.$compileProvider#debugInfoEnabled} for more.\n */\nfunction reloadWithDebugInfo() {\n  window.name = 'NG_ENABLE_DEBUG_INFO!' + window.name;\n  window.location.reload();\n}\n\n/**\n * @name angular.getTestability\n * @module ng\n * @description\n * Get the testability service for the instance of AngularJS on the given\n * element.\n * @param {DOMElement} element DOM element which is the root of AngularJS application.\n */\nfunction getTestability(rootElement) {\n  var injector = angular.element(rootElement).injector();\n  if (!injector) {\n    throw ngMinErr('test',\n      'no injector found for element argument to getTestability');\n  }\n  return injector.get('$$testability');\n}\n\nvar SNAKE_CASE_REGEXP = /[A-Z]/g;\nfunction snake_case(name, separator) {\n  separator = separator || '_';\n  return name.replace(SNAKE_CASE_REGEXP, function(letter, pos) {\n    return (pos ? separator : '') + letter.toLowerCase();\n  });\n}\n\nvar bindJQueryFired = false;\nfunction bindJQuery() {\n  var originalCleanData;\n\n  if (bindJQueryFired) {\n    return;\n  }\n\n  // bind to jQuery if present;\n  var jqName = jq();\n  jQuery = isUndefined(jqName) ? window.jQuery :   // use jQuery (if present)\n           !jqName             ? undefined     :   // use jqLite\n                                 window[jqName];   // use jQuery specified by `ngJq`\n\n  // Use jQuery if it exists with proper functionality, otherwise default to us.\n  // AngularJS 1.2+ requires jQuery 1.7+ for on()/off() support.\n  // AngularJS 1.3+ technically requires at least jQuery 2.1+ but it may work with older\n  // versions. It will not work for sure with jQuery <1.7, though.\n  if (jQuery && jQuery.fn.on) {\n    jqLite = jQuery;\n    extend(jQuery.fn, {\n      scope: JQLitePrototype.scope,\n      isolateScope: JQLitePrototype.isolateScope,\n      controller: /** @type {?} */ (JQLitePrototype).controller,\n      injector: JQLitePrototype.injector,\n      inheritedData: JQLitePrototype.inheritedData\n    });\n  } else {\n    jqLite = JQLite;\n  }\n\n  // All nodes removed from the DOM via various jqLite/jQuery APIs like .remove()\n  // are passed through jqLite/jQuery.cleanData. Monkey-patch this method to fire\n  // the $destroy event on all removed nodes.\n  originalCleanData = jqLite.cleanData;\n  jqLite.cleanData = function(elems) {\n    var events;\n    for (var i = 0, elem; (elem = elems[i]) != null; i++) {\n      events = (jqLite._data(elem) || {}).events;\n      if (events && events.$destroy) {\n        jqLite(elem).triggerHandler('$destroy');\n      }\n    }\n    originalCleanData(elems);\n  };\n\n  angular.element = jqLite;\n\n  // Prevent double-proxying.\n  bindJQueryFired = true;\n}\n\n/**\n * @ngdoc function\n * @name angular.UNSAFE_restoreLegacyJqLiteXHTMLReplacement\n * @module ng\n * @kind function\n *\n * @description\n * Restores the pre-1.8 behavior of jqLite that turns XHTML-like strings like\n * `<div /><span />` to `<div></div><span></span>` instead of `<div><span></span></div>`.\n * The new behavior is a security fix. Thus, if you need to call this function, please try to adjust\n * your code for this change and remove your use of this function as soon as possible.\n\n * Note that this only patches jqLite. If you use jQuery 3.5.0 or newer, please read the\n * [jQuery 3.5 upgrade guide](https://jquery.com/upgrade-guide/3.5/) for more details\n * about the workarounds.\n */\nfunction UNSAFE_restoreLegacyJqLiteXHTMLReplacement() {\n  JQLite.legacyXHTMLReplacement = true;\n}\n\n/**\n * throw error if the argument is falsy.\n */\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', 'Argument \\'{0}\\' is {1}', (name || '?'), (reason || 'required'));\n  }\n  return arg;\n}\n\nfunction assertArgFn(arg, name, acceptArrayAnnotation) {\n  if (acceptArrayAnnotation && isArray(arg)) {\n      arg = arg[arg.length - 1];\n  }\n\n  assertArg(isFunction(arg), name, 'not a function, got ' +\n      (arg && typeof arg === 'object' ? arg.constructor.name || 'Object' : typeof arg));\n  return arg;\n}\n\n/**\n * throw error if the name given is hasOwnProperty\n * @param  {String} name    the name to test\n * @param  {String} context the context in which the name is used, such as module or directive\n */\nfunction assertNotHasOwnProperty(name, context) {\n  if (name === 'hasOwnProperty') {\n    throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);\n  }\n}\n\n/**\n * Return the value accessible from the object by path. Any undefined traversals are ignored\n * @param {Object} obj starting object\n * @param {String} path path to traverse\n * @param {boolean} [bindFnToScope=true]\n * @returns {Object} value as accessible by path\n */\n//TODO(misko): this function needs to be removed\nfunction getter(obj, path, bindFnToScope) {\n  if (!path) return obj;\n  var keys = path.split('.');\n  var key;\n  var lastInstance = obj;\n  var len = keys.length;\n\n  for (var i = 0; i < len; i++) {\n    key = keys[i];\n    if (obj) {\n      obj = (lastInstance = obj)[key];\n    }\n  }\n  if (!bindFnToScope && isFunction(obj)) {\n    return bind(lastInstance, obj);\n  }\n  return obj;\n}\n\n/**\n * Return the DOM siblings between the first and last node in the given array.\n * @param {Array} array like object\n * @returns {Array} the inputted object or a jqLite collection containing the nodes\n */\nfunction getBlockNodes(nodes) {\n  // TODO(perf): update `nodes` instead of creating a new object?\n  var node = nodes[0];\n  var endNode = nodes[nodes.length - 1];\n  var blockNodes;\n\n  for (var i = 1; node !== endNode && (node = node.nextSibling); i++) {\n    if (blockNodes || nodes[i] !== node) {\n      if (!blockNodes) {\n        blockNodes = jqLite(slice.call(nodes, 0, i));\n      }\n      blockNodes.push(node);\n    }\n  }\n\n  return blockNodes || nodes;\n}\n\n\n/**\n * Creates a new object without a prototype. This object is useful for lookup without having to\n * guard against prototypically inherited properties via hasOwnProperty.\n *\n * Related micro-benchmarks:\n * - http://jsperf.com/object-create2\n * - http://jsperf.com/proto-map-lookup/2\n * - http://jsperf.com/for-in-vs-object-keys2\n *\n * @returns {Object}\n */\nfunction createMap() {\n  return Object.create(null);\n}\n\nfunction stringify(value) {\n  if (value == null) { // null || undefined\n    return '';\n  }\n  switch (typeof value) {\n    case 'string':\n      break;\n    case 'number':\n      value = '' + value;\n      break;\n    default:\n      if (hasCustomToString(value) && !isArray(value) && !isDate(value)) {\n        value = value.toString();\n      } else {\n        value = toJson(value);\n      }\n  }\n\n  return value;\n}\n\nvar NODE_TYPE_ELEMENT = 1;\nvar NODE_TYPE_ATTRIBUTE = 2;\nvar NODE_TYPE_TEXT = 3;\nvar NODE_TYPE_COMMENT = 8;\nvar NODE_TYPE_DOCUMENT = 9;\nvar NODE_TYPE_DOCUMENT_FRAGMENT = 11;\n\n/**\n * @ngdoc type\n * @name angular.Module\n * @module ng\n * @description\n *\n * Interface for configuring AngularJS {@link angular.module modules}.\n */\n\nfunction setupModuleLoader(window) {\n\n  var $injectorMinErr = minErr('$injector');\n  var ngMinErr = minErr('ng');\n\n  function ensure(obj, name, factory) {\n    return obj[name] || (obj[name] = factory());\n  }\n\n  var angular = ensure(window, 'angular', Object);\n\n  // We need to expose `angular.$$minErr` to modules such as `ngResource` that reference it during bootstrap\n  angular.$$minErr = angular.$$minErr || minErr;\n\n  return ensure(angular, 'module', function() {\n    /** @type {Object.<string, angular.Module>} */\n    var modules = {};\n\n    /**\n     * @ngdoc function\n     * @name angular.module\n     * @module ng\n     * @description\n     *\n     * The `angular.module` is a global place for creating, registering and retrieving AngularJS\n     * modules.\n     * All modules (AngularJS core or 3rd party) that should be available to an application must be\n     * registered using this mechanism.\n     *\n     * Passing one argument retrieves an existing {@link angular.Module},\n     * whereas passing more than one argument creates a new {@link angular.Module}\n     *\n     *\n     * # Module\n     *\n     * A module is a collection of services, directives, controllers, filters, and configuration information.\n     * `angular.module` is used to configure the {@link auto.$injector $injector}.\n     *\n     * ```js\n     * // Create a new module\n     * var myModule = angular.module('myModule', []);\n     *\n     * // register a new service\n     * myModule.value('appName', 'MyCoolApp');\n     *\n     * // configure existing services inside initialization blocks.\n     * myModule.config(['$locationProvider', function($locationProvider) {\n     *   // Configure existing providers\n     *   $locationProvider.hashPrefix('!');\n     * }]);\n     * ```\n     *\n     * Then you can create an injector and load your modules like this:\n     *\n     * ```js\n     * var injector = angular.injector(['ng', 'myModule'])\n     * ```\n     *\n     * However it's more likely that you'll just use\n     * {@link ng.directive:ngApp ngApp} or\n     * {@link angular.bootstrap} to simplify this process for you.\n     *\n     * @param {!string} name The name of the module to create or retrieve.\n     * @param {!Array.<string>=} requires If specified then new module is being created. If\n     *        unspecified then the module is being retrieved for further configuration.\n     * @param {Function=} configFn Optional configuration function for the module. Same as\n     *        {@link angular.Module#config Module#config()}.\n     * @returns {angular.Module} new module with the {@link angular.Module} api.\n     */\n    return function module(name, requires, configFn) {\n\n      var info = {};\n\n      var assertNotHasOwnProperty = function(name, context) {\n        if (name === 'hasOwnProperty') {\n          throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);\n        }\n      };\n\n      assertNotHasOwnProperty(name, 'module');\n      if (requires && modules.hasOwnProperty(name)) {\n        modules[name] = null;\n      }\n      return ensure(modules, name, function() {\n        if (!requires) {\n          throw $injectorMinErr('nomod', 'Module \\'{0}\\' is not available! You either misspelled ' +\n             'the module name or forgot to load it. If registering a module ensure that you ' +\n             'specify the dependencies as the second argument.', name);\n        }\n\n        /** @type {!Array.<Array.<*>>} */\n        var invokeQueue = [];\n\n        /** @type {!Array.<Function>} */\n        var configBlocks = [];\n\n        /** @type {!Array.<Function>} */\n        var runBlocks = [];\n\n        var config = invokeLater('$injector', 'invoke', 'push', configBlocks);\n\n        /** @type {angular.Module} */\n        var moduleInstance = {\n          // Private state\n          _invokeQueue: invokeQueue,\n          _configBlocks: configBlocks,\n          _runBlocks: runBlocks,\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#info\n           * @module ng\n           *\n           * @param {Object=} info Information about the module\n           * @returns {Object|Module} The current info object for this module if called as a getter,\n           *                          or `this` if called as a setter.\n           *\n           * @description\n           * Read and write custom information about this module.\n           * For example you could put the version of the module in here.\n           *\n           * ```js\n           * angular.module('myModule', []).info({ version: '1.0.0' });\n           * ```\n           *\n           * The version could then be read back out by accessing the module elsewhere:\n           *\n           * ```\n           * var version = angular.module('myModule').info().version;\n           * ```\n           *\n           * You can also retrieve this information during runtime via the\n           * {@link $injector#modules `$injector.modules`} property:\n           *\n           * ```js\n           * var version = $injector.modules['myModule'].info().version;\n           * ```\n           */\n          info: function(value) {\n            if (isDefined(value)) {\n              if (!isObject(value)) throw ngMinErr('aobj', 'Argument \\'{0}\\' must be an object', 'value');\n              info = value;\n              return this;\n            }\n            return info;\n          },\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#requires\n           * @module ng\n           *\n           * @description\n           * Holds the list of modules which the injector will load before the current module is\n           * loaded.\n           */\n          requires: requires,\n\n          /**\n           * @ngdoc property\n           * @name angular.Module#name\n           * @module ng\n           *\n           * @description\n           * Name of the module.\n           */\n          name: name,\n\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#provider\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerType Construction function for creating new instance of the\n           *                                service.\n           * @description\n           * See {@link auto.$provide#provider $provide.provider()}.\n           */\n          provider: invokeLaterAndSetModuleName('$provide', 'provider'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#factory\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} providerFunction Function for creating new instance of the service.\n           * @description\n           * See {@link auto.$provide#factory $provide.factory()}.\n           */\n          factory: invokeLaterAndSetModuleName('$provide', 'factory'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#service\n           * @module ng\n           * @param {string} name service name\n           * @param {Function} constructor A constructor function that will be instantiated.\n           * @description\n           * See {@link auto.$provide#service $provide.service()}.\n           */\n          service: invokeLaterAndSetModuleName('$provide', 'service'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#value\n           * @module ng\n           * @param {string} name service name\n           * @param {*} object Service instance object.\n           * @description\n           * See {@link auto.$provide#value $provide.value()}.\n           */\n          value: invokeLater('$provide', 'value'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#constant\n           * @module ng\n           * @param {string} name constant name\n           * @param {*} object Constant value.\n           * @description\n           * Because the constants are fixed, they get applied before other provide methods.\n           * See {@link auto.$provide#constant $provide.constant()}.\n           */\n          constant: invokeLater('$provide', 'constant', 'unshift'),\n\n           /**\n           * @ngdoc method\n           * @name angular.Module#decorator\n           * @module ng\n           * @param {string} name The name of the service to decorate.\n           * @param {Function} decorFn This function will be invoked when the service needs to be\n           *                           instantiated and should return the decorated service instance.\n           * @description\n           * See {@link auto.$provide#decorator $provide.decorator()}.\n           */\n          decorator: invokeLaterAndSetModuleName('$provide', 'decorator', configBlocks),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#animation\n           * @module ng\n           * @param {string} name animation name\n           * @param {Function} animationFactory Factory function for creating new instance of an\n           *                                    animation.\n           * @description\n           *\n           * **NOTE**: animations take effect only if the **ngAnimate** module is loaded.\n           *\n           *\n           * Defines an animation hook that can be later used with\n           * {@link $animate $animate} service and directives that use this service.\n           *\n           * ```js\n           * module.animation('.animation-name', function($inject1, $inject2) {\n           *   return {\n           *     eventName : function(element, done) {\n           *       //code to run the animation\n           *       //once complete, then run done()\n           *       return function cancellationFunction(element) {\n           *         //code to cancel the animation\n           *       }\n           *     }\n           *   }\n           * })\n           * ```\n           *\n           * See {@link ng.$animateProvider#register $animateProvider.register()} and\n           * {@link ngAnimate ngAnimate module} for more information.\n           */\n          animation: invokeLaterAndSetModuleName('$animateProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#filter\n           * @module ng\n           * @param {string} name Filter name - this must be a valid AngularJS expression identifier\n           * @param {Function} filterFactory Factory function for creating new instance of filter.\n           * @description\n           * See {@link ng.$filterProvider#register $filterProvider.register()}.\n           *\n           * <div class=\"alert alert-warning\">\n           * **Note:** Filter names must be valid AngularJS {@link expression} identifiers, such as `uppercase` or `orderBy`.\n           * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n           * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n           * (`myapp_subsection_filterx`).\n           * </div>\n           */\n          filter: invokeLaterAndSetModuleName('$filterProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#controller\n           * @module ng\n           * @param {string|Object} name Controller name, or an object map of controllers where the\n           *    keys are the names and the values are the constructors.\n           * @param {Function} constructor Controller constructor function.\n           * @description\n           * See {@link ng.$controllerProvider#register $controllerProvider.register()}.\n           */\n          controller: invokeLaterAndSetModuleName('$controllerProvider', 'register'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#directive\n           * @module ng\n           * @param {string|Object} name Directive name, or an object map of directives where the\n           *    keys are the names and the values are the factories.\n           * @param {Function} directiveFactory Factory function for creating new instance of\n           * directives.\n           * @description\n           * See {@link ng.$compileProvider#directive $compileProvider.directive()}.\n           */\n          directive: invokeLaterAndSetModuleName('$compileProvider', 'directive'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#component\n           * @module ng\n           * @param {string|Object} name Name of the component in camelCase (i.e. `myComp` which will match `<my-comp>`),\n           *    or an object map of components where the keys are the names and the values are the component definition objects.\n           * @param {Object} options Component definition object (a simplified\n           *    {@link ng.$compile#directive-definition-object directive definition object})\n           *\n           * @description\n           * See {@link ng.$compileProvider#component $compileProvider.component()}.\n           */\n          component: invokeLaterAndSetModuleName('$compileProvider', 'component'),\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#config\n           * @module ng\n           * @param {Function} configFn Execute this function on module load. Useful for service\n           *    configuration.\n           * @description\n           * Use this method to configure services by injecting their\n           * {@link angular.Module#provider `providers`}, e.g. for adding routes to the\n           * {@link ngRoute.$routeProvider $routeProvider}.\n           *\n           * Note that you can only inject {@link angular.Module#provider `providers`} and\n           * {@link angular.Module#constant `constants`} into this function.\n           *\n           * For more about how to configure services, see\n           * {@link providers#provider-recipe Provider Recipe}.\n           */\n          config: config,\n\n          /**\n           * @ngdoc method\n           * @name angular.Module#run\n           * @module ng\n           * @param {Function} initializationFn Execute this function after injector creation.\n           *    Useful for application initialization.\n           * @description\n           * Use this method to register work which should be performed when the injector is done\n           * loading all modules.\n           */\n          run: function(block) {\n            runBlocks.push(block);\n            return this;\n          }\n        };\n\n        if (configFn) {\n          config(configFn);\n        }\n\n        return moduleInstance;\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @param {String=} insertMethod\n         * @returns {angular.Module}\n         */\n        function invokeLater(provider, method, insertMethod, queue) {\n          if (!queue) queue = invokeQueue;\n          return function() {\n            queue[insertMethod || 'push']([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n\n        /**\n         * @param {string} provider\n         * @param {string} method\n         * @returns {angular.Module}\n         */\n        function invokeLaterAndSetModuleName(provider, method, queue) {\n          if (!queue) queue = invokeQueue;\n          return function(recipeName, factoryFunction) {\n            if (factoryFunction && isFunction(factoryFunction)) factoryFunction.$$moduleName = name;\n            queue.push([provider, method, arguments]);\n            return moduleInstance;\n          };\n        }\n      });\n    };\n  });\n\n}\n\n/* global shallowCopy: true */\n\n/**\n * Creates a shallow copy of an object, an array or a primitive.\n *\n * Assumes that there are no proto properties for objects.\n */\nfunction shallowCopy(src, dst) {\n  if (isArray(src)) {\n    dst = dst || [];\n\n    for (var i = 0, ii = src.length; i < ii; i++) {\n      dst[i] = src[i];\n    }\n  } else if (isObject(src)) {\n    dst = dst || {};\n\n    for (var key in src) {\n      if (!(key.charAt(0) === '$' && key.charAt(1) === '$')) {\n        dst[key] = src[key];\n      }\n    }\n  }\n\n  return dst || src;\n}\n\n/* exported toDebugString */\n\nfunction serializeObject(obj, maxDepth) {\n  var seen = [];\n\n  // There is no direct way to stringify object until reaching a specific depth\n  // and a very deep object can cause a performance issue, so we copy the object\n  // based on this specific depth and then stringify it.\n  if (isValidObjectMaxDepth(maxDepth)) {\n    // This file is also included in `angular-loader`, so `copy()` might not always be available in\n    // the closure. Therefore, it is lazily retrieved as `angular.copy()` when needed.\n    obj = angular.copy(obj, null, maxDepth);\n  }\n  return JSON.stringify(obj, function(key, val) {\n    val = toJsonReplacer(key, val);\n    if (isObject(val)) {\n\n      if (seen.indexOf(val) >= 0) return '...';\n\n      seen.push(val);\n    }\n    return val;\n  });\n}\n\nfunction toDebugString(obj, maxDepth) {\n  if (typeof obj === 'function') {\n    return obj.toString().replace(/ \\{[\\s\\S]*$/, '');\n  } else if (isUndefined(obj)) {\n    return 'undefined';\n  } else if (typeof obj !== 'string') {\n    return serializeObject(obj, maxDepth);\n  }\n  return obj;\n}\n\n/* global angularModule: true,\n  version: true,\n\n  $CompileProvider,\n\n  htmlAnchorDirective,\n  inputDirective,\n  hiddenInputBrowserCacheDirective,\n  formDirective,\n  scriptDirective,\n  selectDirective,\n  optionDirective,\n  ngBindDirective,\n  ngBindHtmlDirective,\n  ngBindTemplateDirective,\n  ngClassDirective,\n  ngClassEvenDirective,\n  ngClassOddDirective,\n  ngCloakDirective,\n  ngControllerDirective,\n  ngFormDirective,\n  ngHideDirective,\n  ngIfDirective,\n  ngIncludeDirective,\n  ngIncludeFillContentDirective,\n  ngInitDirective,\n  ngNonBindableDirective,\n  ngPluralizeDirective,\n  ngRefDirective,\n  ngRepeatDirective,\n  ngShowDirective,\n  ngStyleDirective,\n  ngSwitchDirective,\n  ngSwitchWhenDirective,\n  ngSwitchDefaultDirective,\n  ngOptionsDirective,\n  ngTranscludeDirective,\n  ngModelDirective,\n  ngListDirective,\n  ngChangeDirective,\n  patternDirective,\n  patternDirective,\n  requiredDirective,\n  requiredDirective,\n  minlengthDirective,\n  minlengthDirective,\n  maxlengthDirective,\n  maxlengthDirective,\n  ngValueDirective,\n  ngModelOptionsDirective,\n  ngAttributeAliasDirectives,\n  ngEventDirectives,\n\n  $AnchorScrollProvider,\n  $AnimateProvider,\n  $CoreAnimateCssProvider,\n  $$CoreAnimateJsProvider,\n  $$CoreAnimateQueueProvider,\n  $$AnimateRunnerFactoryProvider,\n  $$AnimateAsyncRunFactoryProvider,\n  $BrowserProvider,\n  $CacheFactoryProvider,\n  $ControllerProvider,\n  $DateProvider,\n  $DocumentProvider,\n  $$IsDocumentHiddenProvider,\n  $ExceptionHandlerProvider,\n  $FilterProvider,\n  $$ForceReflowProvider,\n  $InterpolateProvider,\n  $$IntervalFactoryProvider,\n  $IntervalProvider,\n  $HttpProvider,\n  $HttpParamSerializerProvider,\n  $HttpParamSerializerJQLikeProvider,\n  $HttpBackendProvider,\n  $xhrFactoryProvider,\n  $jsonpCallbacksProvider,\n  $LocationProvider,\n  $LogProvider,\n  $$MapProvider,\n  $ParseProvider,\n  $RootScopeProvider,\n  $QProvider,\n  $$QProvider,\n  $$SanitizeUriProvider,\n  $SceProvider,\n  $SceDelegateProvider,\n  $SnifferProvider,\n  $$TaskTrackerFactoryProvider,\n  $TemplateCacheProvider,\n  $TemplateRequestProvider,\n  $$TestabilityProvider,\n  $TimeoutProvider,\n  $$RAFProvider,\n  $WindowProvider,\n  $$jqLiteProvider,\n  $$CookieReaderProvider\n*/\n\n\n/**\n * @ngdoc object\n * @name angular.version\n * @module ng\n * @description\n * An object that contains information about the current AngularJS version.\n *\n * This object has the following properties:\n *\n * - `full` – `{string}` – Full version string, such as \"0.9.18\".\n * - `major` – `{number}` – Major version number, such as \"0\".\n * - `minor` – `{number}` – Minor version number, such as \"9\".\n * - `dot` – `{number}` – Dot version number, such as \"18\".\n * - `codeName` – `{string}` – Code name of the release, such as \"jiggling-armfat\".\n */\nvar version = {\n  // These placeholder strings will be replaced by grunt's `build` task.\n  // They need to be double- or single-quoted.\n  full: '1.8.3',\n  major: 1,\n  minor: 8,\n  dot: 3,\n  codeName: 'ultimate-farewell'\n};\n\n\nfunction publishExternalAPI(angular) {\n  extend(angular, {\n    'errorHandlingConfig': errorHandlingConfig,\n    'bootstrap': bootstrap,\n    'copy': copy,\n    'extend': extend,\n    'merge': merge,\n    'equals': equals,\n    'element': jqLite,\n    'forEach': forEach,\n    'injector': createInjector,\n    'noop': noop,\n    'bind': bind,\n    'toJson': toJson,\n    'fromJson': fromJson,\n    'identity': identity,\n    'isUndefined': isUndefined,\n    'isDefined': isDefined,\n    'isString': isString,\n    'isFunction': isFunction,\n    'isObject': isObject,\n    'isNumber': isNumber,\n    'isElement': isElement,\n    'isArray': isArray,\n    'version': version,\n    'isDate': isDate,\n    'callbacks': {$$counter: 0},\n    'getTestability': getTestability,\n    'reloadWithDebugInfo': reloadWithDebugInfo,\n    'UNSAFE_restoreLegacyJqLiteXHTMLReplacement': UNSAFE_restoreLegacyJqLiteXHTMLReplacement,\n    '$$minErr': minErr,\n    '$$csp': csp,\n    '$$encodeUriSegment': encodeUriSegment,\n    '$$encodeUriQuery': encodeUriQuery,\n    '$$lowercase': lowercase,\n    '$$stringify': stringify,\n    '$$uppercase': uppercase\n  });\n\n  angularModule = setupModuleLoader(window);\n\n  angularModule('ng', ['ngLocale'], ['$provide',\n    function ngModule($provide) {\n      // $$sanitizeUriProvider needs to be before $compileProvider as it is used by it.\n      $provide.provider({\n        $$sanitizeUri: $$SanitizeUriProvider\n      });\n      $provide.provider('$compile', $CompileProvider).\n        directive({\n            a: htmlAnchorDirective,\n            input: inputDirective,\n            textarea: inputDirective,\n            form: formDirective,\n            script: scriptDirective,\n            select: selectDirective,\n            option: optionDirective,\n            ngBind: ngBindDirective,\n            ngBindHtml: ngBindHtmlDirective,\n            ngBindTemplate: ngBindTemplateDirective,\n            ngClass: ngClassDirective,\n            ngClassEven: ngClassEvenDirective,\n            ngClassOdd: ngClassOddDirective,\n            ngCloak: ngCloakDirective,\n            ngController: ngControllerDirective,\n            ngForm: ngFormDirective,\n            ngHide: ngHideDirective,\n            ngIf: ngIfDirective,\n            ngInclude: ngIncludeDirective,\n            ngInit: ngInitDirective,\n            ngNonBindable: ngNonBindableDirective,\n            ngPluralize: ngPluralizeDirective,\n            ngRef: ngRefDirective,\n            ngRepeat: ngRepeatDirective,\n            ngShow: ngShowDirective,\n            ngStyle: ngStyleDirective,\n            ngSwitch: ngSwitchDirective,\n            ngSwitchWhen: ngSwitchWhenDirective,\n            ngSwitchDefault: ngSwitchDefaultDirective,\n            ngOptions: ngOptionsDirective,\n            ngTransclude: ngTranscludeDirective,\n            ngModel: ngModelDirective,\n            ngList: ngListDirective,\n            ngChange: ngChangeDirective,\n            pattern: patternDirective,\n            ngPattern: patternDirective,\n            required: requiredDirective,\n            ngRequired: requiredDirective,\n            minlength: minlengthDirective,\n            ngMinlength: minlengthDirective,\n            maxlength: maxlengthDirective,\n            ngMaxlength: maxlengthDirective,\n            ngValue: ngValueDirective,\n            ngModelOptions: ngModelOptionsDirective\n        }).\n        directive({\n          ngInclude: ngIncludeFillContentDirective,\n          input: hiddenInputBrowserCacheDirective\n        }).\n        directive(ngAttributeAliasDirectives).\n        directive(ngEventDirectives);\n      $provide.provider({\n        $anchorScroll: $AnchorScrollProvider,\n        $animate: $AnimateProvider,\n        $animateCss: $CoreAnimateCssProvider,\n        $$animateJs: $$CoreAnimateJsProvider,\n        $$animateQueue: $$CoreAnimateQueueProvider,\n        $$AnimateRunner: $$AnimateRunnerFactoryProvider,\n        $$animateAsyncRun: $$AnimateAsyncRunFactoryProvider,\n        $browser: $BrowserProvider,\n        $cacheFactory: $CacheFactoryProvider,\n        $controller: $ControllerProvider,\n        $document: $DocumentProvider,\n        $$isDocumentHidden: $$IsDocumentHiddenProvider,\n        $exceptionHandler: $ExceptionHandlerProvider,\n        $filter: $FilterProvider,\n        $$forceReflow: $$ForceReflowProvider,\n        $interpolate: $InterpolateProvider,\n        $interval: $IntervalProvider,\n        $$intervalFactory: $$IntervalFactoryProvider,\n        $http: $HttpProvider,\n        $httpParamSerializer: $HttpParamSerializerProvider,\n        $httpParamSerializerJQLike: $HttpParamSerializerJQLikeProvider,\n        $httpBackend: $HttpBackendProvider,\n        $xhrFactory: $xhrFactoryProvider,\n        $jsonpCallbacks: $jsonpCallbacksProvider,\n        $location: $LocationProvider,\n        $log: $LogProvider,\n        $parse: $ParseProvider,\n        $rootScope: $RootScopeProvider,\n        $q: $QProvider,\n        $$q: $$QProvider,\n        $sce: $SceProvider,\n        $sceDelegate: $SceDelegateProvider,\n        $sniffer: $SnifferProvider,\n        $$taskTrackerFactory: $$TaskTrackerFactoryProvider,\n        $templateCache: $TemplateCacheProvider,\n        $templateRequest: $TemplateRequestProvider,\n        $$testability: $$TestabilityProvider,\n        $timeout: $TimeoutProvider,\n        $window: $WindowProvider,\n        $$rAF: $$RAFProvider,\n        $$jqLite: $$jqLiteProvider,\n        $$Map: $$MapProvider,\n        $$cookieReader: $$CookieReaderProvider\n      });\n    }\n  ])\n  .info({ angularVersion: '1.8.3' });\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* global\n  JQLitePrototype: true,\n  BOOLEAN_ATTR: true,\n  ALIASED_ATTR: true\n*/\n\n//////////////////////////////////\n//JQLite\n//////////////////////////////////\n\n/**\n * @ngdoc function\n * @name angular.element\n * @module ng\n * @kind function\n *\n * @description\n * Wraps a raw DOM element or HTML string as a [jQuery](http://jquery.com) element.\n *\n * If jQuery is available, `angular.element` is an alias for the\n * [jQuery](http://api.jquery.com/jQuery/) function. If jQuery is not available, `angular.element`\n * delegates to AngularJS's built-in subset of jQuery, called \"jQuery lite\" or **jqLite**.\n *\n * jqLite is a tiny, API-compatible subset of jQuery that allows\n * AngularJS to manipulate the DOM in a cross-browser compatible way. jqLite implements only the most\n * commonly needed functionality with the goal of having a very small footprint.\n *\n * To use `jQuery`, simply ensure it is loaded before the `angular.js` file. You can also use the\n * {@link ngJq `ngJq`} directive to specify that jqlite should be used over jQuery, or to use a\n * specific version of jQuery if multiple versions exist on the page.\n *\n * <div class=\"alert alert-info\">**Note:** All element references in AngularJS are always wrapped with jQuery or\n * jqLite (such as the element argument in a directive's compile / link function). They are never raw DOM references.</div>\n *\n * <div class=\"alert alert-warning\">**Note:** Keep in mind that this function will not find elements\n * by tag name / CSS selector. For lookups by tag name, try instead `angular.element(document).find(...)`\n * or `$document.find()`, or use the standard DOM APIs, e.g. `document.querySelectorAll()`.</div>\n *\n * ## AngularJS's jqLite\n * jqLite provides only the following jQuery methods:\n *\n * - [`addClass()`](http://api.jquery.com/addClass/) - Does not support a function as first argument\n * - [`after()`](http://api.jquery.com/after/)\n * - [`append()`](http://api.jquery.com/append/) - Contrary to jQuery, this doesn't clone elements\n *   so will not work correctly when invoked on a jqLite object containing more than one DOM node\n * - [`attr()`](http://api.jquery.com/attr/) - Does not support functions as parameters\n * - [`bind()`](http://api.jquery.com/bind/) (_deprecated_, use [`on()`](http://api.jquery.com/on/)) - Does not support namespaces, selectors or eventData\n * - [`children()`](http://api.jquery.com/children/) - Does not support selectors\n * - [`clone()`](http://api.jquery.com/clone/)\n * - [`contents()`](http://api.jquery.com/contents/)\n * - [`css()`](http://api.jquery.com/css/) - Only retrieves inline-styles, does not call `getComputedStyle()`.\n *   As a setter, does not convert numbers to strings or append 'px', and also does not have automatic property prefixing.\n * - [`data()`](http://api.jquery.com/data/)\n * - [`detach()`](http://api.jquery.com/detach/)\n * - [`empty()`](http://api.jquery.com/empty/)\n * - [`eq()`](http://api.jquery.com/eq/)\n * - [`find()`](http://api.jquery.com/find/) - Limited to lookups by tag name\n * - [`hasClass()`](http://api.jquery.com/hasClass/)\n * - [`html()`](http://api.jquery.com/html/)\n * - [`next()`](http://api.jquery.com/next/) - Does not support selectors\n * - [`on()`](http://api.jquery.com/on/) - Does not support namespaces, selectors or eventData\n * - [`off()`](http://api.jquery.com/off/) - Does not support namespaces, selectors or event object as parameter\n * - [`one()`](http://api.jquery.com/one/) - Does not support namespaces or selectors\n * - [`parent()`](http://api.jquery.com/parent/) - Does not support selectors\n * - [`prepend()`](http://api.jquery.com/prepend/)\n * - [`prop()`](http://api.jquery.com/prop/)\n * - [`ready()`](http://api.jquery.com/ready/) (_deprecated_, use `angular.element(callback)` instead of `angular.element(document).ready(callback)`)\n * - [`remove()`](http://api.jquery.com/remove/)\n * - [`removeAttr()`](http://api.jquery.com/removeAttr/) - Does not support multiple attributes\n * - [`removeClass()`](http://api.jquery.com/removeClass/) - Does not support a function as first argument\n * - [`removeData()`](http://api.jquery.com/removeData/)\n * - [`replaceWith()`](http://api.jquery.com/replaceWith/)\n * - [`text()`](http://api.jquery.com/text/)\n * - [`toggleClass()`](http://api.jquery.com/toggleClass/) - Does not support a function as first argument\n * - [`triggerHandler()`](http://api.jquery.com/triggerHandler/) - Passes a dummy event object to handlers\n * - [`unbind()`](http://api.jquery.com/unbind/) (_deprecated_, use [`off()`](http://api.jquery.com/off/)) - Does not support namespaces or event object as parameter\n * - [`val()`](http://api.jquery.com/val/)\n * - [`wrap()`](http://api.jquery.com/wrap/)\n *\n * jqLite also provides a method restoring pre-1.8 insecure treatment of XHTML-like tags.\n * This legacy behavior turns input like `<div /><span />` to `<div></div><span></span>`\n * instead of `<div><span></span></div>` like version 1.8 & newer do. To restore it, invoke:\n * ```js\n * angular.UNSAFE_restoreLegacyJqLiteXHTMLReplacement();\n * ```\n * Note that this only patches jqLite. If you use jQuery 3.5.0 or newer, please read the\n * [jQuery 3.5 upgrade guide](https://jquery.com/upgrade-guide/3.5/) for more details\n * about the workarounds.\n *\n * ## jQuery/jqLite Extras\n * AngularJS also provides the following additional methods and events to both jQuery and jqLite:\n *\n * ### Events\n * - `$destroy` - AngularJS intercepts all jqLite/jQuery's DOM destruction apis and fires this event\n *    on all DOM nodes being removed.  This can be used to clean up any 3rd party bindings to the DOM\n *    element before it is removed.\n *\n * ### Methods\n * - `controller(name)` - retrieves the controller of the current element or its parent. By default\n *   retrieves controller associated with the `ngController` directive. If `name` is provided as\n *   camelCase directive name, then the controller for this directive will be retrieved (e.g.\n *   `'ngModel'`).\n * - `injector()` - retrieves the injector of the current element or its parent.\n * - `scope()` - retrieves the {@link ng.$rootScope.Scope scope} of the current\n *   element or its parent. Requires {@link guide/production#disabling-debug-data Debug Data} to\n *   be enabled.\n * - `isolateScope()` - retrieves an isolate {@link ng.$rootScope.Scope scope} if one is attached directly to the\n *   current element. This getter should be used only on elements that contain a directive which starts a new isolate\n *   scope. Calling `scope()` on this element always returns the original non-isolate scope.\n *   Requires {@link guide/production#disabling-debug-data Debug Data} to be enabled.\n * - `inheritedData()` - same as `data()`, but walks up the DOM until a value is found or the top\n *   parent element is reached.\n *\n * @knownIssue You cannot spy on `angular.element` if you are using Jasmine version 1.x. See\n * https://github.com/angular/angular.js/issues/14251 for more information.\n *\n * @param {string|DOMElement} element HTML string or DOMElement to be wrapped into jQuery.\n * @returns {Object} jQuery object.\n */\n\nJQLite.expando = 'ng339';\n\nvar jqCache = JQLite.cache = {},\n    jqId = 1;\n\n/*\n * !!! This is an undocumented \"private\" function !!!\n */\nJQLite._data = function(node) {\n  //jQuery always returns an object on cache miss\n  return this.cache[node[this.expando]] || {};\n};\n\nfunction jqNextId() { return ++jqId; }\n\n\nvar DASH_LOWERCASE_REGEXP = /-([a-z])/g;\nvar MS_HACK_REGEXP = /^-ms-/;\nvar MOUSE_EVENT_MAP = { mouseleave: 'mouseout', mouseenter: 'mouseover' };\nvar jqLiteMinErr = minErr('jqLite');\n\n/**\n * Converts kebab-case to camelCase.\n * There is also a special case for the ms prefix starting with a lowercase letter.\n * @param name Name to normalize\n */\nfunction cssKebabToCamel(name) {\n    return kebabToCamel(name.replace(MS_HACK_REGEXP, 'ms-'));\n}\n\nfunction fnCamelCaseReplace(all, letter) {\n  return letter.toUpperCase();\n}\n\n/**\n * Converts kebab-case to camelCase.\n * @param name Name to normalize\n */\nfunction kebabToCamel(name) {\n  return name\n    .replace(DASH_LOWERCASE_REGEXP, fnCamelCaseReplace);\n}\n\nvar SINGLE_TAG_REGEXP = /^<([\\w-]+)\\s*\\/?>(?:<\\/\\1>|)$/;\nvar HTML_REGEXP = /<|&#?\\w+;/;\nvar TAG_NAME_REGEXP = /<([\\w:-]+)/;\nvar XHTML_TAG_REGEXP = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\\w:-]+)[^>]*)\\/>/gi;\n\n// Table parts need to be wrapped with `<table>` or they're\n// stripped to their contents when put in a div.\n// XHTML parsers do not magically insert elements in the\n// same way that tag soup parsers do, so we cannot shorten\n// this by omitting <tbody> or other required elements.\nvar wrapMap = {\n  thead: ['table'],\n  col: ['colgroup', 'table'],\n  tr: ['tbody', 'table'],\n  td: ['tr', 'tbody', 'table']\n};\n\nwrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;\nwrapMap.th = wrapMap.td;\n\n// Support: IE <10 only\n// IE 9 requires an option wrapper & it needs to have the whole table structure\n// set up in advance; assigning `\"<td></td>\"` to `tr.innerHTML` doesn't work, etc.\nvar wrapMapIE9 = {\n  option: [1, '<select multiple=\"multiple\">', '</select>'],\n  _default: [0, '', '']\n};\n\nfor (var key in wrapMap) {\n  var wrapMapValueClosing = wrapMap[key];\n  var wrapMapValue = wrapMapValueClosing.slice().reverse();\n  wrapMapIE9[key] = [wrapMapValue.length, '<' + wrapMapValue.join('><') + '>', '</' + wrapMapValueClosing.join('></') + '>'];\n}\n\nwrapMapIE9.optgroup = wrapMapIE9.option;\n\nfunction jqLiteIsTextNode(html) {\n  return !HTML_REGEXP.test(html);\n}\n\nfunction jqLiteAcceptsData(node) {\n  // The window object can accept data but has no nodeType\n  // Otherwise we are only interested in elements (1) and documents (9)\n  var nodeType = node.nodeType;\n  return nodeType === NODE_TYPE_ELEMENT || !nodeType || nodeType === NODE_TYPE_DOCUMENT;\n}\n\nfunction jqLiteHasData(node) {\n  for (var key in jqCache[node.ng339]) {\n    return true;\n  }\n  return false;\n}\n\nfunction jqLiteBuildFragment(html, context) {\n  var tmp, tag, wrap, finalHtml,\n      fragment = context.createDocumentFragment(),\n      nodes = [], i;\n\n  if (jqLiteIsTextNode(html)) {\n    // Convert non-html into a text node\n    nodes.push(context.createTextNode(html));\n  } else {\n    // Convert html into DOM nodes\n    tmp = fragment.appendChild(context.createElement('div'));\n    tag = (TAG_NAME_REGEXP.exec(html) || ['', ''])[1].toLowerCase();\n    finalHtml = JQLite.legacyXHTMLReplacement ?\n      html.replace(XHTML_TAG_REGEXP, '<$1></$2>') :\n      html;\n\n    if (msie < 10) {\n      wrap = wrapMapIE9[tag] || wrapMapIE9._default;\n      tmp.innerHTML = wrap[1] + finalHtml + wrap[2];\n\n      // Descend through wrappers to the right content\n      i = wrap[0];\n      while (i--) {\n        tmp = tmp.firstChild;\n      }\n    } else {\n      wrap = wrapMap[tag] || [];\n\n      // Create wrappers & descend into them\n      i = wrap.length;\n      while (--i > -1) {\n        tmp.appendChild(window.document.createElement(wrap[i]));\n        tmp = tmp.firstChild;\n      }\n\n      tmp.innerHTML = finalHtml;\n    }\n\n    nodes = concat(nodes, tmp.childNodes);\n\n    tmp = fragment.firstChild;\n    tmp.textContent = '';\n  }\n\n  // Remove wrapper from fragment\n  fragment.textContent = '';\n  fragment.innerHTML = ''; // Clear inner HTML\n  forEach(nodes, function(node) {\n    fragment.appendChild(node);\n  });\n\n  return fragment;\n}\n\nfunction jqLiteParseHTML(html, context) {\n  context = context || window.document;\n  var parsed;\n\n  if ((parsed = SINGLE_TAG_REGEXP.exec(html))) {\n    return [context.createElement(parsed[1])];\n  }\n\n  if ((parsed = jqLiteBuildFragment(html, context))) {\n    return parsed.childNodes;\n  }\n\n  return [];\n}\n\nfunction jqLiteWrapNode(node, wrapper) {\n  var parent = node.parentNode;\n\n  if (parent) {\n    parent.replaceChild(wrapper, node);\n  }\n\n  wrapper.appendChild(node);\n}\n\n\n// IE9-11 has no method \"contains\" in SVG element and in Node.prototype. Bug #10259.\nvar jqLiteContains = window.Node.prototype.contains || /** @this */ function(arg) {\n  // eslint-disable-next-line no-bitwise\n  return !!(this.compareDocumentPosition(arg) & 16);\n};\n\n/////////////////////////////////////////////\nfunction JQLite(element) {\n  if (element instanceof JQLite) {\n    return element;\n  }\n\n  var argIsString;\n\n  if (isString(element)) {\n    element = trim(element);\n    argIsString = true;\n  }\n  if (!(this instanceof JQLite)) {\n    if (argIsString && element.charAt(0) !== '<') {\n      throw jqLiteMinErr('nosel', 'Looking up elements via selectors is not supported by jqLite! See: http://docs.angularjs.org/api/angular.element');\n    }\n    return new JQLite(element);\n  }\n\n  if (argIsString) {\n    jqLiteAddNodes(this, jqLiteParseHTML(element));\n  } else if (isFunction(element)) {\n    jqLiteReady(element);\n  } else {\n    jqLiteAddNodes(this, element);\n  }\n}\n\nfunction jqLiteClone(element) {\n  return element.cloneNode(true);\n}\n\nfunction jqLiteDealoc(element, onlyDescendants) {\n  if (!onlyDescendants && jqLiteAcceptsData(element)) jqLite.cleanData([element]);\n\n  if (element.querySelectorAll) {\n    jqLite.cleanData(element.querySelectorAll('*'));\n  }\n}\n\nfunction isEmptyObject(obj) {\n  var name;\n\n  for (name in obj) {\n    return false;\n  }\n  return true;\n}\n\nfunction removeIfEmptyData(element) {\n  var expandoId = element.ng339;\n  var expandoStore = expandoId && jqCache[expandoId];\n\n  var events = expandoStore && expandoStore.events;\n  var data = expandoStore && expandoStore.data;\n\n  if ((!data || isEmptyObject(data)) && (!events || isEmptyObject(events))) {\n    delete jqCache[expandoId];\n    element.ng339 = undefined; // don't delete DOM expandos. IE and Chrome don't like it\n  }\n}\n\nfunction jqLiteOff(element, type, fn, unsupported) {\n  if (isDefined(unsupported)) throw jqLiteMinErr('offargs', 'jqLite#off() does not support the `selector` argument');\n\n  var expandoStore = jqLiteExpandoStore(element);\n  var events = expandoStore && expandoStore.events;\n  var handle = expandoStore && expandoStore.handle;\n\n  if (!handle) return; //no listeners registered\n\n  if (!type) {\n    for (type in events) {\n      if (type !== '$destroy') {\n        element.removeEventListener(type, handle);\n      }\n      delete events[type];\n    }\n  } else {\n\n    var removeHandler = function(type) {\n      var listenerFns = events[type];\n      if (isDefined(fn)) {\n        arrayRemove(listenerFns || [], fn);\n      }\n      if (!(isDefined(fn) && listenerFns && listenerFns.length > 0)) {\n        element.removeEventListener(type, handle);\n        delete events[type];\n      }\n    };\n\n    forEach(type.split(' '), function(type) {\n      removeHandler(type);\n      if (MOUSE_EVENT_MAP[type]) {\n        removeHandler(MOUSE_EVENT_MAP[type]);\n      }\n    });\n  }\n\n  removeIfEmptyData(element);\n}\n\nfunction jqLiteRemoveData(element, name) {\n  var expandoId = element.ng339;\n  var expandoStore = expandoId && jqCache[expandoId];\n\n  if (expandoStore) {\n    if (name) {\n      delete expandoStore.data[name];\n    } else {\n      expandoStore.data = {};\n    }\n\n    removeIfEmptyData(element);\n  }\n}\n\n\nfunction jqLiteExpandoStore(element, createIfNecessary) {\n  var expandoId = element.ng339,\n      expandoStore = expandoId && jqCache[expandoId];\n\n  if (createIfNecessary && !expandoStore) {\n    element.ng339 = expandoId = jqNextId();\n    expandoStore = jqCache[expandoId] = {events: {}, data: {}, handle: undefined};\n  }\n\n  return expandoStore;\n}\n\n\nfunction jqLiteData(element, key, value) {\n  if (jqLiteAcceptsData(element)) {\n    var prop;\n\n    var isSimpleSetter = isDefined(value);\n    var isSimpleGetter = !isSimpleSetter && key && !isObject(key);\n    var massGetter = !key;\n    var expandoStore = jqLiteExpandoStore(element, !isSimpleGetter);\n    var data = expandoStore && expandoStore.data;\n\n    if (isSimpleSetter) { // data('key', value)\n      data[kebabToCamel(key)] = value;\n    } else {\n      if (massGetter) {  // data()\n        return data;\n      } else {\n        if (isSimpleGetter) { // data('key')\n          // don't force creation of expandoStore if it doesn't exist yet\n          return data && data[kebabToCamel(key)];\n        } else { // mass-setter: data({key1: val1, key2: val2})\n          for (prop in key) {\n            data[kebabToCamel(prop)] = key[prop];\n          }\n        }\n      }\n    }\n  }\n}\n\nfunction jqLiteHasClass(element, selector) {\n  if (!element.getAttribute) return false;\n  return ((' ' + (element.getAttribute('class') || '') + ' ').replace(/[\\n\\t]/g, ' ').\n      indexOf(' ' + selector + ' ') > -1);\n}\n\nfunction jqLiteRemoveClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')\n                            .replace(/[\\n\\t]/g, ' ');\n    var newClasses = existingClasses;\n\n    forEach(cssClasses.split(' '), function(cssClass) {\n      cssClass = trim(cssClass);\n      newClasses = newClasses.replace(' ' + cssClass + ' ', ' ');\n    });\n\n    if (newClasses !== existingClasses) {\n      element.setAttribute('class', trim(newClasses));\n    }\n  }\n}\n\nfunction jqLiteAddClass(element, cssClasses) {\n  if (cssClasses && element.setAttribute) {\n    var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')\n                            .replace(/[\\n\\t]/g, ' ');\n    var newClasses = existingClasses;\n\n    forEach(cssClasses.split(' '), function(cssClass) {\n      cssClass = trim(cssClass);\n      if (newClasses.indexOf(' ' + cssClass + ' ') === -1) {\n        newClasses += cssClass + ' ';\n      }\n    });\n\n    if (newClasses !== existingClasses) {\n      element.setAttribute('class', trim(newClasses));\n    }\n  }\n}\n\n\nfunction jqLiteAddNodes(root, elements) {\n  // THIS CODE IS VERY HOT. Don't make changes without benchmarking.\n\n  if (elements) {\n\n    // if a Node (the most common case)\n    if (elements.nodeType) {\n      root[root.length++] = elements;\n    } else {\n      var length = elements.length;\n\n      // if an Array or NodeList and not a Window\n      if (typeof length === 'number' && elements.window !== elements) {\n        if (length) {\n          for (var i = 0; i < length; i++) {\n            root[root.length++] = elements[i];\n          }\n        }\n      } else {\n        root[root.length++] = elements;\n      }\n    }\n  }\n}\n\n\nfunction jqLiteController(element, name) {\n  return jqLiteInheritedData(element, '$' + (name || 'ngController') + 'Controller');\n}\n\nfunction jqLiteInheritedData(element, name, value) {\n  // if element is the document object work with the html element instead\n  // this makes $(document).scope() possible\n  if (element.nodeType === NODE_TYPE_DOCUMENT) {\n    element = element.documentElement;\n  }\n  var names = isArray(name) ? name : [name];\n\n  while (element) {\n    for (var i = 0, ii = names.length; i < ii; i++) {\n      if (isDefined(value = jqLite.data(element, names[i]))) return value;\n    }\n\n    // If dealing with a document fragment node with a host element, and no parent, use the host\n    // element as the parent. This enables directives within a Shadow DOM or polyfilled Shadow DOM\n    // to lookup parent controllers.\n    element = element.parentNode || (element.nodeType === NODE_TYPE_DOCUMENT_FRAGMENT && element.host);\n  }\n}\n\nfunction jqLiteEmpty(element) {\n  jqLiteDealoc(element, true);\n  while (element.firstChild) {\n    element.removeChild(element.firstChild);\n  }\n}\n\nfunction jqLiteRemove(element, keepData) {\n  if (!keepData) jqLiteDealoc(element);\n  var parent = element.parentNode;\n  if (parent) parent.removeChild(element);\n}\n\n\nfunction jqLiteDocumentLoaded(action, win) {\n  win = win || window;\n  if (win.document.readyState === 'complete') {\n    // Force the action to be run async for consistent behavior\n    // from the action's point of view\n    // i.e. it will definitely not be in a $apply\n    win.setTimeout(action);\n  } else {\n    // No need to unbind this handler as load is only ever called once\n    jqLite(win).on('load', action);\n  }\n}\n\nfunction jqLiteReady(fn) {\n  function trigger() {\n    window.document.removeEventListener('DOMContentLoaded', trigger);\n    window.removeEventListener('load', trigger);\n    fn();\n  }\n\n  // check if document is already loaded\n  if (window.document.readyState === 'complete') {\n    window.setTimeout(fn);\n  } else {\n    // We can not use jqLite since we are not done loading and jQuery could be loaded later.\n\n    // Works for modern browsers and IE9\n    window.document.addEventListener('DOMContentLoaded', trigger);\n\n    // Fallback to window.onload for others\n    window.addEventListener('load', trigger);\n  }\n}\n\n//////////////////////////////////////////\n// Functions which are declared directly.\n//////////////////////////////////////////\nvar JQLitePrototype = JQLite.prototype = {\n  ready: jqLiteReady,\n  toString: function() {\n    var value = [];\n    forEach(this, function(e) { value.push('' + e);});\n    return '[' + value.join(', ') + ']';\n  },\n\n  eq: function(index) {\n      return (index >= 0) ? jqLite(this[index]) : jqLite(this[this.length + index]);\n  },\n\n  length: 0,\n  push: push,\n  sort: [].sort,\n  splice: [].splice\n};\n\n//////////////////////////////////////////\n// Functions iterating getter/setters.\n// these functions return self on setter and\n// value on get.\n//////////////////////////////////////////\nvar BOOLEAN_ATTR = {};\nforEach('multiple,selected,checked,disabled,readOnly,required,open'.split(','), function(value) {\n  BOOLEAN_ATTR[lowercase(value)] = value;\n});\nvar BOOLEAN_ELEMENTS = {};\nforEach('input,select,option,textarea,button,form,details'.split(','), function(value) {\n  BOOLEAN_ELEMENTS[value] = true;\n});\nvar ALIASED_ATTR = {\n  'ngMinlength': 'minlength',\n  'ngMaxlength': 'maxlength',\n  'ngMin': 'min',\n  'ngMax': 'max',\n  'ngPattern': 'pattern',\n  'ngStep': 'step'\n};\n\nfunction getBooleanAttrName(element, name) {\n  // check dom last since we will most likely fail on name\n  var booleanAttr = BOOLEAN_ATTR[name.toLowerCase()];\n\n  // booleanAttr is here twice to minimize DOM access\n  return booleanAttr && BOOLEAN_ELEMENTS[nodeName_(element)] && booleanAttr;\n}\n\nfunction getAliasedAttrName(name) {\n  return ALIASED_ATTR[name];\n}\n\nforEach({\n  data: jqLiteData,\n  removeData: jqLiteRemoveData,\n  hasData: jqLiteHasData,\n  cleanData: function jqLiteCleanData(nodes) {\n    for (var i = 0, ii = nodes.length; i < ii; i++) {\n      jqLiteRemoveData(nodes[i]);\n      jqLiteOff(nodes[i]);\n    }\n  }\n}, function(fn, name) {\n  JQLite[name] = fn;\n});\n\nforEach({\n  data: jqLiteData,\n  inheritedData: jqLiteInheritedData,\n\n  scope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$scope') || jqLiteInheritedData(element.parentNode || element, ['$isolateScope', '$scope']);\n  },\n\n  isolateScope: function(element) {\n    // Can't use jqLiteData here directly so we stay compatible with jQuery!\n    return jqLite.data(element, '$isolateScope') || jqLite.data(element, '$isolateScopeNoTemplate');\n  },\n\n  controller: jqLiteController,\n\n  injector: function(element) {\n    return jqLiteInheritedData(element, '$injector');\n  },\n\n  removeAttr: function(element, name) {\n    element.removeAttribute(name);\n  },\n\n  hasClass: jqLiteHasClass,\n\n  css: function(element, name, value) {\n    name = cssKebabToCamel(name);\n\n    if (isDefined(value)) {\n      element.style[name] = value;\n    } else {\n      return element.style[name];\n    }\n  },\n\n  attr: function(element, name, value) {\n    var ret;\n    var nodeType = element.nodeType;\n    if (nodeType === NODE_TYPE_TEXT || nodeType === NODE_TYPE_ATTRIBUTE || nodeType === NODE_TYPE_COMMENT ||\n      !element.getAttribute) {\n      return;\n    }\n\n    var lowercasedName = lowercase(name);\n    var isBooleanAttr = BOOLEAN_ATTR[lowercasedName];\n\n    if (isDefined(value)) {\n      // setter\n\n      if (value === null || (value === false && isBooleanAttr)) {\n        element.removeAttribute(name);\n      } else {\n        element.setAttribute(name, isBooleanAttr ? lowercasedName : value);\n      }\n    } else {\n      // getter\n\n      ret = element.getAttribute(name);\n\n      if (isBooleanAttr && ret !== null) {\n        ret = lowercasedName;\n      }\n      // Normalize non-existing attributes to undefined (as jQuery).\n      return ret === null ? undefined : ret;\n    }\n  },\n\n  prop: function(element, name, value) {\n    if (isDefined(value)) {\n      element[name] = value;\n    } else {\n      return element[name];\n    }\n  },\n\n  text: (function() {\n    getText.$dv = '';\n    return getText;\n\n    function getText(element, value) {\n      if (isUndefined(value)) {\n        var nodeType = element.nodeType;\n        return (nodeType === NODE_TYPE_ELEMENT || nodeType === NODE_TYPE_TEXT) ? element.textContent : '';\n      }\n      element.textContent = value;\n    }\n  })(),\n\n  val: function(element, value) {\n    if (isUndefined(value)) {\n      if (element.multiple && nodeName_(element) === 'select') {\n        var result = [];\n        forEach(element.options, function(option) {\n          if (option.selected) {\n            result.push(option.value || option.text);\n          }\n        });\n        return result;\n      }\n      return element.value;\n    }\n    element.value = value;\n  },\n\n  html: function(element, value) {\n    if (isUndefined(value)) {\n      return element.innerHTML;\n    }\n    jqLiteDealoc(element, true);\n    element.innerHTML = value;\n  },\n\n  empty: jqLiteEmpty\n}, function(fn, name) {\n  /**\n   * Properties: writes return selection, reads return first value\n   */\n  JQLite.prototype[name] = function(arg1, arg2) {\n    var i, key;\n    var nodeCount = this.length;\n\n    // jqLiteHasClass has only two arguments, but is a getter-only fn, so we need to special-case it\n    // in a way that survives minification.\n    // jqLiteEmpty takes no arguments but is a setter.\n    if (fn !== jqLiteEmpty &&\n        (isUndefined((fn.length === 2 && (fn !== jqLiteHasClass && fn !== jqLiteController)) ? arg1 : arg2))) {\n      if (isObject(arg1)) {\n\n        // we are a write, but the object properties are the key/values\n        for (i = 0; i < nodeCount; i++) {\n          if (fn === jqLiteData) {\n            // data() takes the whole object in jQuery\n            fn(this[i], arg1);\n          } else {\n            for (key in arg1) {\n              fn(this[i], key, arg1[key]);\n            }\n          }\n        }\n        // return self for chaining\n        return this;\n      } else {\n        // we are a read, so read the first child.\n        // TODO: do we still need this?\n        var value = fn.$dv;\n        // Only if we have $dv do we iterate over all, otherwise it is just the first element.\n        var jj = (isUndefined(value)) ? Math.min(nodeCount, 1) : nodeCount;\n        for (var j = 0; j < jj; j++) {\n          var nodeValue = fn(this[j], arg1, arg2);\n          value = value ? value + nodeValue : nodeValue;\n        }\n        return value;\n      }\n    } else {\n      // we are a write, so apply to all children\n      for (i = 0; i < nodeCount; i++) {\n        fn(this[i], arg1, arg2);\n      }\n      // return self for chaining\n      return this;\n    }\n  };\n});\n\nfunction createEventHandler(element, events) {\n  var eventHandler = function(event, type) {\n    // jQuery specific api\n    event.isDefaultPrevented = function() {\n      return event.defaultPrevented;\n    };\n\n    var eventFns = events[type || event.type];\n    var eventFnsLength = eventFns ? eventFns.length : 0;\n\n    if (!eventFnsLength) return;\n\n    if (isUndefined(event.immediatePropagationStopped)) {\n      var originalStopImmediatePropagation = event.stopImmediatePropagation;\n      event.stopImmediatePropagation = function() {\n        event.immediatePropagationStopped = true;\n\n        if (event.stopPropagation) {\n          event.stopPropagation();\n        }\n\n        if (originalStopImmediatePropagation) {\n          originalStopImmediatePropagation.call(event);\n        }\n      };\n    }\n\n    event.isImmediatePropagationStopped = function() {\n      return event.immediatePropagationStopped === true;\n    };\n\n    // Some events have special handlers that wrap the real handler\n    var handlerWrapper = eventFns.specialHandlerWrapper || defaultHandlerWrapper;\n\n    // Copy event handlers in case event handlers array is modified during execution.\n    if ((eventFnsLength > 1)) {\n      eventFns = shallowCopy(eventFns);\n    }\n\n    for (var i = 0; i < eventFnsLength; i++) {\n      if (!event.isImmediatePropagationStopped()) {\n        handlerWrapper(element, event, eventFns[i]);\n      }\n    }\n  };\n\n  // TODO: this is a hack for angularMocks/clearDataCache that makes it possible to deregister all\n  //       events on `element`\n  eventHandler.elem = element;\n  return eventHandler;\n}\n\nfunction defaultHandlerWrapper(element, event, handler) {\n  handler.call(element, event);\n}\n\nfunction specialMouseHandlerWrapper(target, event, handler) {\n  // Refer to jQuery's implementation of mouseenter & mouseleave\n  // Read about mouseenter and mouseleave:\n  // http://www.quirksmode.org/js/events_mouse.html#link8\n  var related = event.relatedTarget;\n  // For mousenter/leave call the handler if related is outside the target.\n  // NB: No relatedTarget if the mouse left/entered the browser window\n  if (!related || (related !== target && !jqLiteContains.call(target, related))) {\n    handler.call(target, event);\n  }\n}\n\n//////////////////////////////////////////\n// Functions iterating traversal.\n// These functions chain results into a single\n// selector.\n//////////////////////////////////////////\nforEach({\n  removeData: jqLiteRemoveData,\n\n  on: function jqLiteOn(element, type, fn, unsupported) {\n    if (isDefined(unsupported)) throw jqLiteMinErr('onargs', 'jqLite#on() does not support the `selector` or `eventData` parameters');\n\n    // Do not add event handlers to non-elements because they will not be cleaned up.\n    if (!jqLiteAcceptsData(element)) {\n      return;\n    }\n\n    var expandoStore = jqLiteExpandoStore(element, true);\n    var events = expandoStore.events;\n    var handle = expandoStore.handle;\n\n    if (!handle) {\n      handle = expandoStore.handle = createEventHandler(element, events);\n    }\n\n    // http://jsperf.com/string-indexof-vs-split\n    var types = type.indexOf(' ') >= 0 ? type.split(' ') : [type];\n    var i = types.length;\n\n    var addHandler = function(type, specialHandlerWrapper, noEventListener) {\n      var eventFns = events[type];\n\n      if (!eventFns) {\n        eventFns = events[type] = [];\n        eventFns.specialHandlerWrapper = specialHandlerWrapper;\n        if (type !== '$destroy' && !noEventListener) {\n          element.addEventListener(type, handle);\n        }\n      }\n\n      eventFns.push(fn);\n    };\n\n    while (i--) {\n      type = types[i];\n      if (MOUSE_EVENT_MAP[type]) {\n        addHandler(MOUSE_EVENT_MAP[type], specialMouseHandlerWrapper);\n        addHandler(type, undefined, true);\n      } else {\n        addHandler(type);\n      }\n    }\n  },\n\n  off: jqLiteOff,\n\n  one: function(element, type, fn) {\n    element = jqLite(element);\n\n    //add the listener twice so that when it is called\n    //you can remove the original function and still be\n    //able to call element.off(ev, fn) normally\n    element.on(type, function onFn() {\n      element.off(type, fn);\n      element.off(type, onFn);\n    });\n    element.on(type, fn);\n  },\n\n  replaceWith: function(element, replaceNode) {\n    var index, parent = element.parentNode;\n    jqLiteDealoc(element);\n    forEach(new JQLite(replaceNode), function(node) {\n      if (index) {\n        parent.insertBefore(node, index.nextSibling);\n      } else {\n        parent.replaceChild(node, element);\n      }\n      index = node;\n    });\n  },\n\n  children: function(element) {\n    var children = [];\n    forEach(element.childNodes, function(element) {\n      if (element.nodeType === NODE_TYPE_ELEMENT) {\n        children.push(element);\n      }\n    });\n    return children;\n  },\n\n  contents: function(element) {\n    return element.contentDocument || element.childNodes || [];\n  },\n\n  append: function(element, node) {\n    var nodeType = element.nodeType;\n    if (nodeType !== NODE_TYPE_ELEMENT && nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT) return;\n\n    node = new JQLite(node);\n\n    for (var i = 0, ii = node.length; i < ii; i++) {\n      var child = node[i];\n      element.appendChild(child);\n    }\n  },\n\n  prepend: function(element, node) {\n    if (element.nodeType === NODE_TYPE_ELEMENT) {\n      var index = element.firstChild;\n      forEach(new JQLite(node), function(child) {\n        element.insertBefore(child, index);\n      });\n    }\n  },\n\n  wrap: function(element, wrapNode) {\n    jqLiteWrapNode(element, jqLite(wrapNode).eq(0).clone()[0]);\n  },\n\n  remove: jqLiteRemove,\n\n  detach: function(element) {\n    jqLiteRemove(element, true);\n  },\n\n  after: function(element, newElement) {\n    var index = element, parent = element.parentNode;\n\n    if (parent) {\n      newElement = new JQLite(newElement);\n\n      for (var i = 0, ii = newElement.length; i < ii; i++) {\n        var node = newElement[i];\n        parent.insertBefore(node, index.nextSibling);\n        index = node;\n      }\n    }\n  },\n\n  addClass: jqLiteAddClass,\n  removeClass: jqLiteRemoveClass,\n\n  toggleClass: function(element, selector, condition) {\n    if (selector) {\n      forEach(selector.split(' '), function(className) {\n        var classCondition = condition;\n        if (isUndefined(classCondition)) {\n          classCondition = !jqLiteHasClass(element, className);\n        }\n        (classCondition ? jqLiteAddClass : jqLiteRemoveClass)(element, className);\n      });\n    }\n  },\n\n  parent: function(element) {\n    var parent = element.parentNode;\n    return parent && parent.nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT ? parent : null;\n  },\n\n  next: function(element) {\n    return element.nextElementSibling;\n  },\n\n  find: function(element, selector) {\n    if (element.getElementsByTagName) {\n      return element.getElementsByTagName(selector);\n    } else {\n      return [];\n    }\n  },\n\n  clone: jqLiteClone,\n\n  triggerHandler: function(element, event, extraParameters) {\n\n    var dummyEvent, eventFnsCopy, handlerArgs;\n    var eventName = event.type || event;\n    var expandoStore = jqLiteExpandoStore(element);\n    var events = expandoStore && expandoStore.events;\n    var eventFns = events && events[eventName];\n\n    if (eventFns) {\n      // Create a dummy event to pass to the handlers\n      dummyEvent = {\n        preventDefault: function() { this.defaultPrevented = true; },\n        isDefaultPrevented: function() { return this.defaultPrevented === true; },\n        stopImmediatePropagation: function() { this.immediatePropagationStopped = true; },\n        isImmediatePropagationStopped: function() { return this.immediatePropagationStopped === true; },\n        stopPropagation: noop,\n        type: eventName,\n        target: element\n      };\n\n      // If a custom event was provided then extend our dummy event with it\n      if (event.type) {\n        dummyEvent = extend(dummyEvent, event);\n      }\n\n      // Copy event handlers in case event handlers array is modified during execution.\n      eventFnsCopy = shallowCopy(eventFns);\n      handlerArgs = extraParameters ? [dummyEvent].concat(extraParameters) : [dummyEvent];\n\n      forEach(eventFnsCopy, function(fn) {\n        if (!dummyEvent.isImmediatePropagationStopped()) {\n          fn.apply(element, handlerArgs);\n        }\n      });\n    }\n  }\n}, function(fn, name) {\n  /**\n   * chaining functions\n   */\n  JQLite.prototype[name] = function(arg1, arg2, arg3) {\n    var value;\n\n    for (var i = 0, ii = this.length; i < ii; i++) {\n      if (isUndefined(value)) {\n        value = fn(this[i], arg1, arg2, arg3);\n        if (isDefined(value)) {\n          // any function which returns a value needs to be wrapped\n          value = jqLite(value);\n        }\n      } else {\n        jqLiteAddNodes(value, fn(this[i], arg1, arg2, arg3));\n      }\n    }\n    return isDefined(value) ? value : this;\n  };\n});\n\n// bind legacy bind/unbind to on/off\nJQLite.prototype.bind = JQLite.prototype.on;\nJQLite.prototype.unbind = JQLite.prototype.off;\n\n\n// Provider for private $$jqLite service\n/** @this */\nfunction $$jqLiteProvider() {\n  this.$get = function $$jqLite() {\n    return extend(JQLite, {\n      hasClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteHasClass(node, classes);\n      },\n      addClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteAddClass(node, classes);\n      },\n      removeClass: function(node, classes) {\n        if (node.attr) node = node[0];\n        return jqLiteRemoveClass(node, classes);\n      }\n    });\n  };\n}\n\n/**\n * Computes a hash of an 'obj'.\n * Hash of a:\n *  string is string\n *  number is number as string\n *  object is either result of calling $$hashKey function on the object or uniquely generated id,\n *         that is also assigned to the $$hashKey property of the object.\n *\n * @param obj\n * @returns {string} hash string such that the same input will have the same hash string.\n *         The resulting string key is in 'type:hashKey' format.\n */\nfunction hashKey(obj, nextUidFn) {\n  var key = obj && obj.$$hashKey;\n\n  if (key) {\n    if (typeof key === 'function') {\n      key = obj.$$hashKey();\n    }\n    return key;\n  }\n\n  var objType = typeof obj;\n  if (objType === 'function' || (objType === 'object' && obj !== null)) {\n    key = obj.$$hashKey = objType + ':' + (nextUidFn || nextUid)();\n  } else {\n    key = objType + ':' + obj;\n  }\n\n  return key;\n}\n\n// A minimal ES2015 Map implementation.\n// Should be bug/feature equivalent to the native implementations of supported browsers\n// (for the features required in Angular).\n// See https://kangax.github.io/compat-table/es6/#test-Map\nvar nanKey = Object.create(null);\nfunction NgMapShim() {\n  this._keys = [];\n  this._values = [];\n  this._lastKey = NaN;\n  this._lastIndex = -1;\n}\nNgMapShim.prototype = {\n  _idx: function(key) {\n    if (key !== this._lastKey) {\n      this._lastKey = key;\n      this._lastIndex = this._keys.indexOf(key);\n    }\n    return this._lastIndex;\n  },\n  _transformKey: function(key) {\n    return isNumberNaN(key) ? nanKey : key;\n  },\n  get: function(key) {\n    key = this._transformKey(key);\n    var idx = this._idx(key);\n    if (idx !== -1) {\n      return this._values[idx];\n    }\n  },\n  has: function(key) {\n    key = this._transformKey(key);\n    var idx = this._idx(key);\n    return idx !== -1;\n  },\n  set: function(key, value) {\n    key = this._transformKey(key);\n    var idx = this._idx(key);\n    if (idx === -1) {\n      idx = this._lastIndex = this._keys.length;\n    }\n    this._keys[idx] = key;\n    this._values[idx] = value;\n\n    // Support: IE11\n    // Do not `return this` to simulate the partial IE11 implementation\n  },\n  delete: function(key) {\n    key = this._transformKey(key);\n    var idx = this._idx(key);\n    if (idx === -1) {\n      return false;\n    }\n    this._keys.splice(idx, 1);\n    this._values.splice(idx, 1);\n    this._lastKey = NaN;\n    this._lastIndex = -1;\n    return true;\n  }\n};\n\n// For now, always use `NgMapShim`, even if `window.Map` is available. Some native implementations\n// are still buggy (often in subtle ways) and can cause hard-to-debug failures. When native `Map`\n// implementations get more stable, we can reconsider switching to `window.Map` (when available).\nvar NgMap = NgMapShim;\n\nvar $$MapProvider = [/** @this */function() {\n  this.$get = [function() {\n    return NgMap;\n  }];\n}];\n\n/**\n * @ngdoc function\n * @module ng\n * @name angular.injector\n * @kind function\n *\n * @description\n * Creates an injector object that can be used for retrieving services as well as for\n * dependency injection (see {@link guide/di dependency injection}).\n *\n * @param {Array.<string|Function>} modules A list of module functions or their aliases. See\n *     {@link angular.module}. The `ng` module must be explicitly added.\n * @param {boolean=} [strictDi=false] Whether the injector should be in strict mode, which\n *     disallows argument name annotation inference.\n * @returns {injector} Injector object. See {@link auto.$injector $injector}.\n *\n * @example\n * Typical usage\n * ```js\n *   // create an injector\n *   var $injector = angular.injector(['ng']);\n *\n *   // use the injector to kick off your application\n *   // use the type inference to auto inject arguments, or use implicit injection\n *   $injector.invoke(function($rootScope, $compile, $document) {\n *     $compile($document)($rootScope);\n *     $rootScope.$digest();\n *   });\n * ```\n *\n * Sometimes you want to get access to the injector of a currently running AngularJS app\n * from outside AngularJS. Perhaps, you want to inject and compile some markup after the\n * application has been bootstrapped. You can do this using the extra `injector()` added\n * to JQuery/jqLite elements. See {@link angular.element}.\n *\n * *This is fairly rare but could be the case if a third party library is injecting the\n * markup.*\n *\n * In the following example a new block of HTML containing a `ng-controller`\n * directive is added to the end of the document body by JQuery. We then compile and link\n * it into the current AngularJS scope.\n *\n * ```js\n * var $div = $('<div ng-controller=\"MyCtrl\">{{content.label}}</div>');\n * $(document.body).append($div);\n *\n * angular.element(document).injector().invoke(function($compile) {\n *   var scope = angular.element($div).scope();\n *   $compile($div)(scope);\n * });\n * ```\n */\n\n\n/**\n * @ngdoc module\n * @name auto\n * @installation\n * @description\n *\n * Implicit module which gets automatically added to each {@link auto.$injector $injector}.\n */\n\nvar ARROW_ARG = /^([^(]+?)=>/;\nvar FN_ARGS = /^[^(]*\\(\\s*([^)]*)\\)/m;\nvar FN_ARG_SPLIT = /,/;\nvar FN_ARG = /^\\s*(_?)(\\S+?)\\1\\s*$/;\nvar STRIP_COMMENTS = /((\\/\\/.*$)|(\\/\\*[\\s\\S]*?\\*\\/))/mg;\nvar $injectorMinErr = minErr('$injector');\n\nfunction stringifyFn(fn) {\n  return Function.prototype.toString.call(fn);\n}\n\nfunction extractArgs(fn) {\n  var fnText = stringifyFn(fn).replace(STRIP_COMMENTS, ''),\n      args = fnText.match(ARROW_ARG) || fnText.match(FN_ARGS);\n  return args;\n}\n\nfunction anonFn(fn) {\n  // For anonymous functions, showing at the very least the function signature can help in\n  // debugging.\n  var args = extractArgs(fn);\n  if (args) {\n    return 'function(' + (args[1] || '').replace(/[\\s\\r\\n]+/, ' ') + ')';\n  }\n  return 'fn';\n}\n\nfunction annotate(fn, strictDi, name) {\n  var $inject,\n      argDecl,\n      last;\n\n  if (typeof fn === 'function') {\n    if (!($inject = fn.$inject)) {\n      $inject = [];\n      if (fn.length) {\n        if (strictDi) {\n          if (!isString(name) || !name) {\n            name = fn.name || anonFn(fn);\n          }\n          throw $injectorMinErr('strictdi',\n            '{0} is not using explicit annotation and cannot be invoked in strict mode', name);\n        }\n        argDecl = extractArgs(fn);\n        forEach(argDecl[1].split(FN_ARG_SPLIT), function(arg) {\n          arg.replace(FN_ARG, function(all, underscore, name) {\n            $inject.push(name);\n          });\n        });\n      }\n      fn.$inject = $inject;\n    }\n  } else if (isArray(fn)) {\n    last = fn.length - 1;\n    assertArgFn(fn[last], 'fn');\n    $inject = fn.slice(0, last);\n  } else {\n    assertArgFn(fn, 'fn', true);\n  }\n  return $inject;\n}\n\n///////////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $injector\n *\n * @description\n *\n * `$injector` is used to retrieve object instances as defined by\n * {@link auto.$provide provider}, instantiate types, invoke methods,\n * and load modules.\n *\n * The following always holds true:\n *\n * ```js\n *   var $injector = angular.injector();\n *   expect($injector.get('$injector')).toBe($injector);\n *   expect($injector.invoke(function($injector) {\n *     return $injector;\n *   })).toBe($injector);\n * ```\n *\n * ## Injection Function Annotation\n *\n * JavaScript does not have annotations, and annotations are needed for dependency injection. The\n * following are all valid ways of annotating function with injection arguments and are equivalent.\n *\n * ```js\n *   // inferred (only works if code not minified/obfuscated)\n *   $injector.invoke(function(serviceA){});\n *\n *   // annotated\n *   function explicit(serviceA) {};\n *   explicit.$inject = ['serviceA'];\n *   $injector.invoke(explicit);\n *\n *   // inline\n *   $injector.invoke(['serviceA', function(serviceA){}]);\n * ```\n *\n * ### Inference\n *\n * In JavaScript calling `toString()` on a function returns the function definition. The definition\n * can then be parsed and the function arguments can be extracted. This method of discovering\n * annotations is disallowed when the injector is in strict mode.\n * *NOTE:* This does not work with minification, and obfuscation tools since these tools change the\n * argument names.\n *\n * ### `$inject` Annotation\n * By adding an `$inject` property onto a function the injection parameters can be specified.\n *\n * ### Inline\n * As an array of injection names, where the last item in the array is the function to call.\n */\n\n/**\n * @ngdoc property\n * @name $injector#modules\n * @type {Object}\n * @description\n * A hash containing all the modules that have been loaded into the\n * $injector.\n *\n * You can use this property to find out information about a module via the\n * {@link angular.Module#info `myModule.info(...)`} method.\n *\n * For example:\n *\n * ```\n * var info = $injector.modules['ngAnimate'].info();\n * ```\n *\n * **Do not use this property to attempt to modify the modules after the application\n * has been bootstrapped.**\n */\n\n\n/**\n * @ngdoc method\n * @name $injector#get\n *\n * @description\n * Return an instance of the service.\n *\n * @param {string} name The name of the instance to retrieve.\n * @param {string=} caller An optional string to provide the origin of the function call for error messages.\n * @return {*} The instance.\n */\n\n/**\n * @ngdoc method\n * @name $injector#invoke\n *\n * @description\n * Invoke the method and supply the method arguments from the `$injector`.\n *\n * @param {Function|Array.<string|Function>} fn The injectable function to invoke. Function parameters are\n *   injected according to the {@link guide/di $inject Annotation} rules.\n * @param {Object=} self The `this` for the invoked method.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n *                         object first, before the `$injector` is consulted.\n * @returns {*} the value returned by the invoked `fn` function.\n */\n\n/**\n * @ngdoc method\n * @name $injector#has\n *\n * @description\n * Allows the user to query if the particular service exists.\n *\n * @param {string} name Name of the service to query.\n * @returns {boolean} `true` if injector has given service.\n */\n\n/**\n * @ngdoc method\n * @name $injector#instantiate\n * @description\n * Create a new instance of JS type. The method takes a constructor function, invokes the new\n * operator, and supplies all of the arguments to the constructor function as specified by the\n * constructor annotation.\n *\n * @param {Function} Type Annotated constructor function.\n * @param {Object=} locals Optional object. If preset then any argument names are read from this\n * object first, before the `$injector` is consulted.\n * @returns {Object} new instance of `Type`.\n */\n\n/**\n * @ngdoc method\n * @name $injector#annotate\n *\n * @description\n * Returns an array of service names which the function is requesting for injection. This API is\n * used by the injector to determine which services need to be injected into the function when the\n * function is invoked. There are three ways in which the function can be annotated with the needed\n * dependencies.\n *\n * #### Argument names\n *\n * The simplest form is to extract the dependencies from the arguments of the function. This is done\n * by converting the function into a string using `toString()` method and extracting the argument\n * names.\n * ```js\n *   // Given\n *   function MyController($scope, $route) {\n *     // ...\n *   }\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * You can disallow this method by using strict injection mode.\n *\n * This method does not work with code minification / obfuscation. For this reason the following\n * annotation strategies are supported.\n *\n * #### The `$inject` property\n *\n * If a function has an `$inject` property and its value is an array of strings, then the strings\n * represent names of services to be injected into the function.\n * ```js\n *   // Given\n *   var MyController = function(obfuscatedScope, obfuscatedRoute) {\n *     // ...\n *   }\n *   // Define function dependencies\n *   MyController['$inject'] = ['$scope', '$route'];\n *\n *   // Then\n *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);\n * ```\n *\n * #### The array notation\n *\n * It is often desirable to inline Injected functions and that's when setting the `$inject` property\n * is very inconvenient. In these situations using the array notation to specify the dependencies in\n * a way that survives minification is a better choice:\n *\n * ```js\n *   // We wish to write this (not minification / obfuscation safe)\n *   injector.invoke(function($compile, $rootScope) {\n *     // ...\n *   });\n *\n *   // We are forced to write break inlining\n *   var tmpFn = function(obfuscatedCompile, obfuscatedRootScope) {\n *     // ...\n *   };\n *   tmpFn.$inject = ['$compile', '$rootScope'];\n *   injector.invoke(tmpFn);\n *\n *   // To better support inline function the inline annotation is supported\n *   injector.invoke(['$compile', '$rootScope', function(obfCompile, obfRootScope) {\n *     // ...\n *   }]);\n *\n *   // Therefore\n *   expect(injector.annotate(\n *      ['$compile', '$rootScope', function(obfus_$compile, obfus_$rootScope) {}])\n *    ).toEqual(['$compile', '$rootScope']);\n * ```\n *\n * @param {Function|Array.<string|Function>} fn Function for which dependent service names need to\n * be retrieved as described above.\n *\n * @param {boolean=} [strictDi=false] Disallow argument name annotation inference.\n *\n * @returns {Array.<string>} The names of the services which the function requires.\n */\n/**\n * @ngdoc method\n * @name $injector#loadNewModules\n *\n * @description\n *\n * **This is a dangerous API, which you use at your own risk!**\n *\n * Add the specified modules to the current injector.\n *\n * This method will add each of the injectables to the injector and execute all of the config and run\n * blocks for each module passed to the method.\n *\n * If a module has already been loaded into the injector then it will not be loaded again.\n *\n * * The application developer is responsible for loading the code containing the modules; and for\n * ensuring that lazy scripts are not downloaded and executed more often that desired.\n * * Previously compiled HTML will not be affected by newly loaded directives, filters and components.\n * * Modules cannot be unloaded.\n *\n * You can use {@link $injector#modules `$injector.modules`} to check whether a module has been loaded\n * into the injector, which may indicate whether the script has been executed already.\n *\n * @example\n * Here is an example of loading a bundle of modules, with a utility method called `getScript`:\n *\n * ```javascript\n * app.factory('loadModule', function($injector) {\n *   return function loadModule(moduleName, bundleUrl) {\n *     return getScript(bundleUrl).then(function() { $injector.loadNewModules([moduleName]); });\n *   };\n * })\n * ```\n *\n * @param {Array<String|Function|Array>=} mods an array of modules to load into the application.\n *     Each item in the array should be the name of a predefined module or a (DI annotated)\n *     function that will be invoked by the injector as a `config` block.\n *     See: {@link angular.module modules}\n */\n\n\n/**\n * @ngdoc service\n * @name $provide\n *\n * @description\n *\n * The {@link auto.$provide $provide} service has a number of methods for registering components\n * with the {@link auto.$injector $injector}. Many of these functions are also exposed on\n * {@link angular.Module}.\n *\n * An AngularJS **service** is a singleton object created by a **service factory**.  These **service\n * factories** are functions which, in turn, are created by a **service provider**.\n * The **service providers** are constructor functions. When instantiated they must contain a\n * property called `$get`, which holds the **service factory** function.\n *\n * When you request a service, the {@link auto.$injector $injector} is responsible for finding the\n * correct **service provider**, instantiating it and then calling its `$get` **service factory**\n * function to get the instance of the **service**.\n *\n * Often services have no configuration options and there is no need to add methods to the service\n * provider.  The provider will be no more than a constructor function with a `$get` property. For\n * these cases the {@link auto.$provide $provide} service has additional helper methods to register\n * services without specifying a provider.\n *\n * * {@link auto.$provide#provider provider(name, provider)} - registers a **service provider** with the\n *     {@link auto.$injector $injector}\n * * {@link auto.$provide#constant constant(name, obj)} - registers a value/object that can be accessed by\n *     providers and services.\n * * {@link auto.$provide#value value(name, obj)} - registers a value/object that can only be accessed by\n *     services, not providers.\n * * {@link auto.$provide#factory factory(name, fn)} - registers a service **factory function**\n *     that will be wrapped in a **service provider** object, whose `$get` property will contain the\n *     given factory function.\n * * {@link auto.$provide#service service(name, Fn)} - registers a **constructor function**\n *     that will be wrapped in a **service provider** object, whose `$get` property will instantiate\n *      a new object using the given constructor function.\n * * {@link auto.$provide#decorator decorator(name, decorFn)} - registers a **decorator function** that\n *      will be able to modify or replace the implementation of another service.\n *\n * See the individual methods for more information and examples.\n */\n\n/**\n * @ngdoc method\n * @name $provide#provider\n * @description\n *\n * Register a **provider function** with the {@link auto.$injector $injector}. Provider functions\n * are constructor functions, whose instances are responsible for \"providing\" a factory for a\n * service.\n *\n * Service provider names start with the name of the service they provide followed by `Provider`.\n * For example, the {@link ng.$log $log} service has a provider called\n * {@link ng.$logProvider $logProvider}.\n *\n * Service provider objects can have additional methods which allow configuration of the provider\n * and its service. Importantly, you can configure what kind of service is created by the `$get`\n * method, or how that service will act. For example, the {@link ng.$logProvider $logProvider} has a\n * method {@link ng.$logProvider#debugEnabled debugEnabled}\n * which lets you specify whether the {@link ng.$log $log} service will log debug messages to the\n * console or not.\n *\n * It is possible to inject other providers into the provider function,\n * but the injected provider must have been defined before the one that requires it.\n *\n * @param {string} name The name of the instance. NOTE: the provider will be available under `name +\n                        'Provider'` key.\n * @param {(Object|function())} provider If the provider is:\n *\n *   - `Object`: then it should have a `$get` method. The `$get` method will be invoked using\n *     {@link auto.$injector#invoke $injector.invoke()} when an instance needs to be created.\n *   - `Constructor`: a new instance of the provider will be created using\n *     {@link auto.$injector#instantiate $injector.instantiate()}, then treated as `object`.\n *\n * @returns {Object} registered provider instance\n\n * @example\n *\n * The following example shows how to create a simple event tracking service and register it using\n * {@link auto.$provide#provider $provide.provider()}.\n *\n * ```js\n *  // Define the eventTracker provider\n *  function EventTrackerProvider() {\n *    var trackingUrl = '/track';\n *\n *    // A provider method for configuring where the tracked events should been saved\n *    this.setTrackingUrl = function(url) {\n *      trackingUrl = url;\n *    };\n *\n *    // The service factory function\n *    this.$get = ['$http', function($http) {\n *      var trackedEvents = {};\n *      return {\n *        // Call this to track an event\n *        event: function(event) {\n *          var count = trackedEvents[event] || 0;\n *          count += 1;\n *          trackedEvents[event] = count;\n *          return count;\n *        },\n *        // Call this to save the tracked events to the trackingUrl\n *        save: function() {\n *          $http.post(trackingUrl, trackedEvents);\n *        }\n *      };\n *    }];\n *  }\n *\n *  describe('eventTracker', function() {\n *    var postSpy;\n *\n *    beforeEach(module(function($provide) {\n *      // Register the eventTracker provider\n *      $provide.provider('eventTracker', EventTrackerProvider);\n *    }));\n *\n *    beforeEach(module(function(eventTrackerProvider) {\n *      // Configure eventTracker provider\n *      eventTrackerProvider.setTrackingUrl('/custom-track');\n *    }));\n *\n *    it('tracks events', inject(function(eventTracker) {\n *      expect(eventTracker.event('login')).toEqual(1);\n *      expect(eventTracker.event('login')).toEqual(2);\n *    }));\n *\n *    it('saves to the tracking url', inject(function(eventTracker, $http) {\n *      postSpy = spyOn($http, 'post');\n *      eventTracker.event('login');\n *      eventTracker.save();\n *      expect(postSpy).toHaveBeenCalled();\n *      expect(postSpy.mostRecentCall.args[0]).not.toEqual('/track');\n *      expect(postSpy.mostRecentCall.args[0]).toEqual('/custom-track');\n *      expect(postSpy.mostRecentCall.args[1]).toEqual({ 'login': 1 });\n *    }));\n *  });\n * ```\n */\n\n/**\n * @ngdoc method\n * @name $provide#factory\n * @description\n *\n * Register a **service factory**, which will be called to return the service instance.\n * This is short for registering a service where its provider consists of only a `$get` property,\n * which is the given service factory function.\n * You should use {@link auto.$provide#factory $provide.factory(getFn)} if you do not need to\n * configure your service in a provider.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} $getFn The injectable $getFn for the instance creation.\n *                      Internally this is a short hand for `$provide.provider(name, {$get: $getFn})`.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service\n * ```js\n *   $provide.factory('ping', ['$http', function($http) {\n *     return function ping() {\n *       return $http.send('/ping');\n *     };\n *   }]);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#service\n * @description\n *\n * Register a **service constructor**, which will be invoked with `new` to create the service\n * instance.\n * This is short for registering a service where its provider's `$get` property is a factory\n * function that returns an instance instantiated by the injector from the service constructor\n * function.\n *\n * Internally it looks a bit like this:\n *\n * ```\n * {\n *   $get: function() {\n *     return $injector.instantiate(constructor);\n *   }\n * }\n * ```\n *\n *\n * You should use {@link auto.$provide#service $provide.service(class)} if you define your service\n * as a type/class.\n *\n * @param {string} name The name of the instance.\n * @param {Function|Array.<string|Function>} constructor An injectable class (constructor function)\n *     that will be instantiated.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here is an example of registering a service using\n * {@link auto.$provide#service $provide.service(class)}.\n * ```js\n *   var Ping = function($http) {\n *     this.$http = $http;\n *   };\n *\n *   Ping.$inject = ['$http'];\n *\n *   Ping.prototype.send = function() {\n *     return this.$http.get('/ping');\n *   };\n *   $provide.service('ping', Ping);\n * ```\n * You would then inject and use this service like this:\n * ```js\n *   someModule.controller('Ctrl', ['ping', function(ping) {\n *     ping.send();\n *   }]);\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#value\n * @description\n *\n * Register a **value service** with the {@link auto.$injector $injector}, such as a string, a\n * number, an array, an object or a function. This is short for registering a service where its\n * provider's `$get` property is a factory function that takes no arguments and returns the **value\n * service**. That also means it is not possible to inject other services into a value service.\n *\n * Value services are similar to constant services, except that they cannot be injected into a\n * module configuration function (see {@link angular.Module#config}) but they can be overridden by\n * an AngularJS {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the instance.\n * @param {*} value The value.\n * @returns {Object} registered provider instance\n *\n * @example\n * Here are some examples of creating value services.\n * ```js\n *   $provide.value('ADMIN_USER', 'admin');\n *\n *   $provide.value('RoleLookup', { admin: 0, writer: 1, reader: 2 });\n *\n *   $provide.value('halfOf', function(value) {\n *     return value / 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#constant\n * @description\n *\n * Register a **constant service** with the {@link auto.$injector $injector}, such as a string,\n * a number, an array, an object or a function. Like the {@link auto.$provide#value value}, it is not\n * possible to inject other services into a constant.\n *\n * But unlike {@link auto.$provide#value value}, a constant can be\n * injected into a module configuration function (see {@link angular.Module#config}) and it cannot\n * be overridden by an AngularJS {@link auto.$provide#decorator decorator}.\n *\n * @param {string} name The name of the constant.\n * @param {*} value The constant value.\n * @returns {Object} registered instance\n *\n * @example\n * Here a some examples of creating constants:\n * ```js\n *   $provide.constant('SHARD_HEIGHT', 306);\n *\n *   $provide.constant('MY_COLOURS', ['red', 'blue', 'grey']);\n *\n *   $provide.constant('double', function(value) {\n *     return value * 2;\n *   });\n * ```\n */\n\n\n/**\n * @ngdoc method\n * @name $provide#decorator\n * @description\n *\n * Register a **decorator function** with the {@link auto.$injector $injector}. A decorator function\n * intercepts the creation of a service, allowing it to override or modify the behavior of the\n * service. The return value of the decorator function may be the original service, or a new service\n * that replaces (or wraps and delegates to) the original service.\n *\n * You can find out more about using decorators in the {@link guide/decorators} guide.\n *\n * @param {string} name The name of the service to decorate.\n * @param {Function|Array.<string|Function>} decorator This function will be invoked when the service needs to be\n *    provided and should return the decorated service instance. The function is called using\n *    the {@link auto.$injector#invoke injector.invoke} method and is therefore fully injectable.\n *    Local injection arguments:\n *\n *    * `$delegate` - The original service instance, which can be replaced, monkey patched, configured,\n *      decorated or delegated to.\n *\n * @example\n * Here we decorate the {@link ng.$log $log} service to convert warnings to errors by intercepting\n * calls to {@link ng.$log#error $log.warn()}.\n * ```js\n *   $provide.decorator('$log', ['$delegate', function($delegate) {\n *     $delegate.warn = $delegate.error;\n *     return $delegate;\n *   }]);\n * ```\n */\n\n\nfunction createInjector(modulesToLoad, strictDi) {\n  strictDi = (strictDi === true);\n  var INSTANTIATING = {},\n      providerSuffix = 'Provider',\n      path = [],\n      loadedModules = new NgMap(),\n      providerCache = {\n        $provide: {\n            provider: supportObject(provider),\n            factory: supportObject(factory),\n            service: supportObject(service),\n            value: supportObject(value),\n            constant: supportObject(constant),\n            decorator: decorator\n          }\n      },\n      providerInjector = (providerCache.$injector =\n          createInternalInjector(providerCache, function(serviceName, caller) {\n            if (angular.isString(caller)) {\n              path.push(caller);\n            }\n            throw $injectorMinErr('unpr', 'Unknown provider: {0}', path.join(' <- '));\n          })),\n      instanceCache = {},\n      protoInstanceInjector =\n          createInternalInjector(instanceCache, function(serviceName, caller) {\n            var provider = providerInjector.get(serviceName + providerSuffix, caller);\n            return instanceInjector.invoke(\n                provider.$get, provider, undefined, serviceName);\n          }),\n      instanceInjector = protoInstanceInjector;\n\n  providerCache['$injector' + providerSuffix] = { $get: valueFn(protoInstanceInjector) };\n  instanceInjector.modules = providerInjector.modules = createMap();\n  var runBlocks = loadModules(modulesToLoad);\n  instanceInjector = protoInstanceInjector.get('$injector');\n  instanceInjector.strictDi = strictDi;\n  forEach(runBlocks, function(fn) { if (fn) instanceInjector.invoke(fn); });\n\n  instanceInjector.loadNewModules = function(mods) {\n    forEach(loadModules(mods), function(fn) { if (fn) instanceInjector.invoke(fn); });\n  };\n\n\n  return instanceInjector;\n\n  ////////////////////////////////////\n  // $provider\n  ////////////////////////////////////\n\n  function supportObject(delegate) {\n    return function(key, value) {\n      if (isObject(key)) {\n        forEach(key, reverseParams(delegate));\n      } else {\n        return delegate(key, value);\n      }\n    };\n  }\n\n  function provider(name, provider_) {\n    assertNotHasOwnProperty(name, 'service');\n    if (isFunction(provider_) || isArray(provider_)) {\n      provider_ = providerInjector.instantiate(provider_);\n    }\n    if (!provider_.$get) {\n      throw $injectorMinErr('pget', 'Provider \\'{0}\\' must define $get factory method.', name);\n    }\n    return (providerCache[name + providerSuffix] = provider_);\n  }\n\n  function enforceReturnValue(name, factory) {\n    return /** @this */ function enforcedReturnValue() {\n      var result = instanceInjector.invoke(factory, this);\n      if (isUndefined(result)) {\n        throw $injectorMinErr('undef', 'Provider \\'{0}\\' must return a value from $get factory method.', name);\n      }\n      return result;\n    };\n  }\n\n  function factory(name, factoryFn, enforce) {\n    return provider(name, {\n      $get: enforce !== false ? enforceReturnValue(name, factoryFn) : factoryFn\n    });\n  }\n\n  function service(name, constructor) {\n    return factory(name, ['$injector', function($injector) {\n      return $injector.instantiate(constructor);\n    }]);\n  }\n\n  function value(name, val) { return factory(name, valueFn(val), false); }\n\n  function constant(name, value) {\n    assertNotHasOwnProperty(name, 'constant');\n    providerCache[name] = value;\n    instanceCache[name] = value;\n  }\n\n  function decorator(serviceName, decorFn) {\n    var origProvider = providerInjector.get(serviceName + providerSuffix),\n        orig$get = origProvider.$get;\n\n    origProvider.$get = function() {\n      var origInstance = instanceInjector.invoke(orig$get, origProvider);\n      return instanceInjector.invoke(decorFn, null, {$delegate: origInstance});\n    };\n  }\n\n  ////////////////////////////////////\n  // Module Loading\n  ////////////////////////////////////\n  function loadModules(modulesToLoad) {\n    assertArg(isUndefined(modulesToLoad) || isArray(modulesToLoad), 'modulesToLoad', 'not an array');\n    var runBlocks = [], moduleFn;\n    forEach(modulesToLoad, function(module) {\n      if (loadedModules.get(module)) return;\n      loadedModules.set(module, true);\n\n      function runInvokeQueue(queue) {\n        var i, ii;\n        for (i = 0, ii = queue.length; i < ii; i++) {\n          var invokeArgs = queue[i],\n              provider = providerInjector.get(invokeArgs[0]);\n\n          provider[invokeArgs[1]].apply(provider, invokeArgs[2]);\n        }\n      }\n\n      try {\n        if (isString(module)) {\n          moduleFn = angularModule(module);\n          instanceInjector.modules[module] = moduleFn;\n          runBlocks = runBlocks.concat(loadModules(moduleFn.requires)).concat(moduleFn._runBlocks);\n          runInvokeQueue(moduleFn._invokeQueue);\n          runInvokeQueue(moduleFn._configBlocks);\n        } else if (isFunction(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else if (isArray(module)) {\n            runBlocks.push(providerInjector.invoke(module));\n        } else {\n          assertArgFn(module, 'module');\n        }\n      } catch (e) {\n        if (isArray(module)) {\n          module = module[module.length - 1];\n        }\n        if (e.message && e.stack && e.stack.indexOf(e.message) === -1) {\n          // Safari & FF's stack traces don't contain error.message content\n          // unlike those of Chrome and IE\n          // So if stack doesn't contain message, we create a new string that contains both.\n          // Since error.stack is read-only in Safari, I'm overriding e and not e.stack here.\n          // eslint-disable-next-line no-ex-assign\n          e = e.message + '\\n' + e.stack;\n        }\n        throw $injectorMinErr('modulerr', 'Failed to instantiate module {0} due to:\\n{1}',\n                  module, e.stack || e.message || e);\n      }\n    });\n    return runBlocks;\n  }\n\n  ////////////////////////////////////\n  // internal Injector\n  ////////////////////////////////////\n\n  function createInternalInjector(cache, factory) {\n\n    function getService(serviceName, caller) {\n      if (cache.hasOwnProperty(serviceName)) {\n        if (cache[serviceName] === INSTANTIATING) {\n          throw $injectorMinErr('cdep', 'Circular dependency found: {0}',\n                    serviceName + ' <- ' + path.join(' <- '));\n        }\n        return cache[serviceName];\n      } else {\n        try {\n          path.unshift(serviceName);\n          cache[serviceName] = INSTANTIATING;\n          cache[serviceName] = factory(serviceName, caller);\n          return cache[serviceName];\n        } catch (err) {\n          if (cache[serviceName] === INSTANTIATING) {\n            delete cache[serviceName];\n          }\n          throw err;\n        } finally {\n          path.shift();\n        }\n      }\n    }\n\n\n    function injectionArgs(fn, locals, serviceName) {\n      var args = [],\n          $inject = createInjector.$$annotate(fn, strictDi, serviceName);\n\n      for (var i = 0, length = $inject.length; i < length; i++) {\n        var key = $inject[i];\n        if (typeof key !== 'string') {\n          throw $injectorMinErr('itkn',\n                  'Incorrect injection token! Expected service name as string, got {0}', key);\n        }\n        args.push(locals && locals.hasOwnProperty(key) ? locals[key] :\n                                                         getService(key, serviceName));\n      }\n      return args;\n    }\n\n    function isClass(func) {\n      // Support: IE 9-11 only\n      // IE 9-11 do not support classes and IE9 leaks with the code below.\n      if (msie || typeof func !== 'function') {\n        return false;\n      }\n      var result = func.$$ngIsClass;\n      if (!isBoolean(result)) {\n        result = func.$$ngIsClass = /^class\\b/.test(stringifyFn(func));\n      }\n      return result;\n    }\n\n    function invoke(fn, self, locals, serviceName) {\n      if (typeof locals === 'string') {\n        serviceName = locals;\n        locals = null;\n      }\n\n      var args = injectionArgs(fn, locals, serviceName);\n      if (isArray(fn)) {\n        fn = fn[fn.length - 1];\n      }\n\n      if (!isClass(fn)) {\n        // http://jsperf.com/angularjs-invoke-apply-vs-switch\n        // #5388\n        return fn.apply(self, args);\n      } else {\n        args.unshift(null);\n        return new (Function.prototype.bind.apply(fn, args))();\n      }\n    }\n\n\n    function instantiate(Type, locals, serviceName) {\n      // Check if Type is annotated and use just the given function at n-1 as parameter\n      // e.g. someModule.factory('greeter', ['$window', function(renamed$window) {}]);\n      var ctor = (isArray(Type) ? Type[Type.length - 1] : Type);\n      var args = injectionArgs(Type, locals, serviceName);\n      // Empty object at position 0 is ignored for invocation with `new`, but required.\n      args.unshift(null);\n      return new (Function.prototype.bind.apply(ctor, args))();\n    }\n\n\n    return {\n      invoke: invoke,\n      instantiate: instantiate,\n      get: getService,\n      annotate: createInjector.$$annotate,\n      has: function(name) {\n        return providerCache.hasOwnProperty(name + providerSuffix) || cache.hasOwnProperty(name);\n      }\n    };\n  }\n}\n\ncreateInjector.$$annotate = annotate;\n\n/**\n * @ngdoc provider\n * @name $anchorScrollProvider\n * @this\n *\n * @description\n * Use `$anchorScrollProvider` to disable automatic scrolling whenever\n * {@link ng.$location#hash $location.hash()} changes.\n */\nfunction $AnchorScrollProvider() {\n\n  var autoScrollingEnabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $anchorScrollProvider#disableAutoScrolling\n   *\n   * @description\n   * By default, {@link ng.$anchorScroll $anchorScroll()} will automatically detect changes to\n   * {@link ng.$location#hash $location.hash()} and scroll to the element matching the new hash.<br />\n   * Use this method to disable automatic scrolling.\n   *\n   * If automatic scrolling is disabled, one must explicitly call\n   * {@link ng.$anchorScroll $anchorScroll()} in order to scroll to the element related to the\n   * current hash.\n   */\n  this.disableAutoScrolling = function() {\n    autoScrollingEnabled = false;\n  };\n\n  /**\n   * @ngdoc service\n   * @name $anchorScroll\n   * @kind function\n   * @requires $window\n   * @requires $location\n   * @requires $rootScope\n   *\n   * @description\n   * When called, it scrolls to the element related to the specified `hash` or (if omitted) to the\n   * current value of {@link ng.$location#hash $location.hash()}, according to the rules specified\n   * in the\n   * [HTML5 spec](http://www.w3.org/html/wg/drafts/html/master/browsers.html#an-indicated-part-of-the-document).\n   *\n   * It also watches the {@link ng.$location#hash $location.hash()} and automatically scrolls to\n   * match any anchor whenever it changes. This can be disabled by calling\n   * {@link ng.$anchorScrollProvider#disableAutoScrolling $anchorScrollProvider.disableAutoScrolling()}.\n   *\n   * Additionally, you can use its {@link ng.$anchorScroll#yOffset yOffset} property to specify a\n   * vertical scroll-offset (either fixed or dynamic).\n   *\n   * @param {string=} hash The hash specifying the element to scroll to. If omitted, the value of\n   *                       {@link ng.$location#hash $location.hash()} will be used.\n   *\n   * @property {(number|function|jqLite)} yOffset\n   * If set, specifies a vertical scroll-offset. This is often useful when there are fixed\n   * positioned elements at the top of the page, such as navbars, headers etc.\n   *\n   * `yOffset` can be specified in various ways:\n   * - **number**: A fixed number of pixels to be used as offset.<br /><br />\n   * - **function**: A getter function called everytime `$anchorScroll()` is executed. Must return\n   *   a number representing the offset (in pixels).<br /><br />\n   * - **jqLite**: A jqLite/jQuery element to be used for specifying the offset. The distance from\n   *   the top of the page to the element's bottom will be used as offset.<br />\n   *   **Note**: The element will be taken into account only as long as its `position` is set to\n   *   `fixed`. This option is useful, when dealing with responsive navbars/headers that adjust\n   *   their height and/or positioning according to the viewport's size.\n   *\n   * <br />\n   * <div class=\"alert alert-warning\">\n   * In order for `yOffset` to work properly, scrolling should take place on the document's root and\n   * not some child element.\n   * </div>\n   *\n   * @example\n     <example module=\"anchorScrollExample\" name=\"anchor-scroll\">\n       <file name=\"index.html\">\n         <div id=\"scrollArea\" ng-controller=\"ScrollController\">\n           <a ng-click=\"gotoBottom()\">Go to bottom</a>\n           <a id=\"bottom\"></a> You're at the bottom!\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollExample', [])\n           .controller('ScrollController', ['$scope', '$location', '$anchorScroll',\n             function($scope, $location, $anchorScroll) {\n               $scope.gotoBottom = function() {\n                 // set the location.hash to the id of\n                 // the element you wish to scroll to.\n                 $location.hash('bottom');\n\n                 // call $anchorScroll()\n                 $anchorScroll();\n               };\n             }]);\n       </file>\n       <file name=\"style.css\">\n         #scrollArea {\n           height: 280px;\n           overflow: auto;\n         }\n\n         #bottom {\n           display: block;\n           margin-top: 2000px;\n         }\n       </file>\n     </example>\n   *\n   * <hr />\n   * The example below illustrates the use of a vertical scroll-offset (specified as a fixed value).\n   * See {@link ng.$anchorScroll#yOffset $anchorScroll.yOffset} for more details.\n   *\n   * @example\n     <example module=\"anchorScrollOffsetExample\" name=\"anchor-scroll-offset\">\n       <file name=\"index.html\">\n         <div class=\"fixed-header\" ng-controller=\"headerCtrl\">\n           <a href=\"\" ng-click=\"gotoAnchor(x)\" ng-repeat=\"x in [1,2,3,4,5]\">\n             Go to anchor {{x}}\n           </a>\n         </div>\n         <div id=\"anchor{{x}}\" class=\"anchor\" ng-repeat=\"x in [1,2,3,4,5]\">\n           Anchor {{x}} of 5\n         </div>\n       </file>\n       <file name=\"script.js\">\n         angular.module('anchorScrollOffsetExample', [])\n           .run(['$anchorScroll', function($anchorScroll) {\n             $anchorScroll.yOffset = 50;   // always scroll by 50 extra pixels\n           }])\n           .controller('headerCtrl', ['$anchorScroll', '$location', '$scope',\n             function($anchorScroll, $location, $scope) {\n               $scope.gotoAnchor = function(x) {\n                 var newHash = 'anchor' + x;\n                 if ($location.hash() !== newHash) {\n                   // set the $location.hash to `newHash` and\n                   // $anchorScroll will automatically scroll to it\n                   $location.hash('anchor' + x);\n                 } else {\n                   // call $anchorScroll() explicitly,\n                   // since $location.hash hasn't changed\n                   $anchorScroll();\n                 }\n               };\n             }\n           ]);\n       </file>\n       <file name=\"style.css\">\n         body {\n           padding-top: 50px;\n         }\n\n         .anchor {\n           border: 2px dashed DarkOrchid;\n           padding: 10px 10px 200px 10px;\n         }\n\n         .fixed-header {\n           background-color: rgba(0, 0, 0, 0.2);\n           height: 50px;\n           position: fixed;\n           top: 0; left: 0; right: 0;\n         }\n\n         .fixed-header > a {\n           display: inline-block;\n           margin: 5px 15px;\n         }\n       </file>\n     </example>\n   */\n  this.$get = ['$window', '$location', '$rootScope', function($window, $location, $rootScope) {\n    var document = $window.document;\n\n    // Helper function to get first anchor from a NodeList\n    // (using `Array#some()` instead of `angular#forEach()` since it's more performant\n    //  and working in all supported browsers.)\n    function getFirstAnchor(list) {\n      var result = null;\n      Array.prototype.some.call(list, function(element) {\n        if (nodeName_(element) === 'a') {\n          result = element;\n          return true;\n        }\n      });\n      return result;\n    }\n\n    function getYOffset() {\n\n      var offset = scroll.yOffset;\n\n      if (isFunction(offset)) {\n        offset = offset();\n      } else if (isElement(offset)) {\n        var elem = offset[0];\n        var style = $window.getComputedStyle(elem);\n        if (style.position !== 'fixed') {\n          offset = 0;\n        } else {\n          offset = elem.getBoundingClientRect().bottom;\n        }\n      } else if (!isNumber(offset)) {\n        offset = 0;\n      }\n\n      return offset;\n    }\n\n    function scrollTo(elem) {\n      if (elem) {\n        elem.scrollIntoView();\n\n        var offset = getYOffset();\n\n        if (offset) {\n          // `offset` is the number of pixels we should scroll UP in order to align `elem` properly.\n          // This is true ONLY if the call to `elem.scrollIntoView()` initially aligns `elem` at the\n          // top of the viewport.\n          //\n          // IF the number of pixels from the top of `elem` to the end of the page's content is less\n          // than the height of the viewport, then `elem.scrollIntoView()` will align the `elem` some\n          // way down the page.\n          //\n          // This is often the case for elements near the bottom of the page.\n          //\n          // In such cases we do not need to scroll the whole `offset` up, just the difference between\n          // the top of the element and the offset, which is enough to align the top of `elem` at the\n          // desired position.\n          var elemTop = elem.getBoundingClientRect().top;\n          $window.scrollBy(0, elemTop - offset);\n        }\n      } else {\n        $window.scrollTo(0, 0);\n      }\n    }\n\n    function scroll(hash) {\n      // Allow numeric hashes\n      hash = isString(hash) ? hash : isNumber(hash) ? hash.toString() : $location.hash();\n      var elm;\n\n      // empty hash, scroll to the top of the page\n      if (!hash) scrollTo(null);\n\n      // element with given id\n      else if ((elm = document.getElementById(hash))) scrollTo(elm);\n\n      // first anchor with given name :-D\n      else if ((elm = getFirstAnchor(document.getElementsByName(hash)))) scrollTo(elm);\n\n      // no element and hash === 'top', scroll to the top of the page\n      else if (hash === 'top') scrollTo(null);\n    }\n\n    // does not scroll when user clicks on anchor link that is currently on\n    // (no url change, no $location.hash() change), browser native does scroll\n    if (autoScrollingEnabled) {\n      $rootScope.$watch(function autoScrollWatch() {return $location.hash();},\n        function autoScrollWatchAction(newVal, oldVal) {\n          // skip the initial scroll if $location.hash is empty\n          if (newVal === oldVal && newVal === '') return;\n\n          jqLiteDocumentLoaded(function() {\n            $rootScope.$evalAsync(scroll);\n          });\n        });\n    }\n\n    return scroll;\n  }];\n}\n\nvar $animateMinErr = minErr('$animate');\nvar ELEMENT_NODE = 1;\nvar NG_ANIMATE_CLASSNAME = 'ng-animate';\n\nfunction mergeClasses(a,b) {\n  if (!a && !b) return '';\n  if (!a) return b;\n  if (!b) return a;\n  if (isArray(a)) a = a.join(' ');\n  if (isArray(b)) b = b.join(' ');\n  return a + ' ' + b;\n}\n\nfunction extractElementNode(element) {\n  for (var i = 0; i < element.length; i++) {\n    var elm = element[i];\n    if (elm.nodeType === ELEMENT_NODE) {\n      return elm;\n    }\n  }\n}\n\nfunction splitClasses(classes) {\n  if (isString(classes)) {\n    classes = classes.split(' ');\n  }\n\n  // Use createMap() to prevent class assumptions involving property names in\n  // Object.prototype\n  var obj = createMap();\n  forEach(classes, function(klass) {\n    // sometimes the split leaves empty string values\n    // incase extra spaces were applied to the options\n    if (klass.length) {\n      obj[klass] = true;\n    }\n  });\n  return obj;\n}\n\n// if any other type of options value besides an Object value is\n// passed into the $animate.method() animation then this helper code\n// will be run which will ignore it. While this patch is not the\n// greatest solution to this, a lot of existing plugins depend on\n// $animate to either call the callback (< 1.2) or return a promise\n// that can be changed. This helper function ensures that the options\n// are wiped clean incase a callback function is provided.\nfunction prepareAnimateOptions(options) {\n  return isObject(options)\n      ? options\n      : {};\n}\n\nvar $$CoreAnimateJsProvider = /** @this */ function() {\n  this.$get = noop;\n};\n\n// this is prefixed with Core since it conflicts with\n// the animateQueueProvider defined in ngAnimate/animateQueue.js\nvar $$CoreAnimateQueueProvider = /** @this */ function() {\n  var postDigestQueue = new NgMap();\n  var postDigestElements = [];\n\n  this.$get = ['$$AnimateRunner', '$rootScope',\n       function($$AnimateRunner,   $rootScope) {\n    return {\n      enabled: noop,\n      on: noop,\n      off: noop,\n      pin: noop,\n\n      push: function(element, event, options, domOperation) {\n        if (domOperation) {\n          domOperation();\n        }\n\n        options = options || {};\n        if (options.from) {\n          element.css(options.from);\n        }\n        if (options.to) {\n          element.css(options.to);\n        }\n\n        if (options.addClass || options.removeClass) {\n          addRemoveClassesPostDigest(element, options.addClass, options.removeClass);\n        }\n\n        var runner = new $$AnimateRunner();\n\n        // since there are no animations to run the runner needs to be\n        // notified that the animation call is complete.\n        runner.complete();\n        return runner;\n      }\n    };\n\n\n    function updateData(data, classes, value) {\n      var changed = false;\n      if (classes) {\n        classes = isString(classes) ? classes.split(' ') :\n                  isArray(classes) ? classes : [];\n        forEach(classes, function(className) {\n          if (className) {\n            changed = true;\n            data[className] = value;\n          }\n        });\n      }\n      return changed;\n    }\n\n    function handleCSSClassChanges() {\n      forEach(postDigestElements, function(element) {\n        var data = postDigestQueue.get(element);\n        if (data) {\n          var existing = splitClasses(element.attr('class'));\n          var toAdd = '';\n          var toRemove = '';\n          forEach(data, function(status, className) {\n            var hasClass = !!existing[className];\n            if (status !== hasClass) {\n              if (status) {\n                toAdd += (toAdd.length ? ' ' : '') + className;\n              } else {\n                toRemove += (toRemove.length ? ' ' : '') + className;\n              }\n            }\n          });\n\n          forEach(element, function(elm) {\n            if (toAdd) {\n              jqLiteAddClass(elm, toAdd);\n            }\n            if (toRemove) {\n              jqLiteRemoveClass(elm, toRemove);\n            }\n          });\n          postDigestQueue.delete(element);\n        }\n      });\n      postDigestElements.length = 0;\n    }\n\n\n    function addRemoveClassesPostDigest(element, add, remove) {\n      var data = postDigestQueue.get(element) || {};\n\n      var classesAdded = updateData(data, add, true);\n      var classesRemoved = updateData(data, remove, false);\n\n      if (classesAdded || classesRemoved) {\n\n        postDigestQueue.set(element, data);\n        postDigestElements.push(element);\n\n        if (postDigestElements.length === 1) {\n          $rootScope.$$postDigest(handleCSSClassChanges);\n        }\n      }\n    }\n  }];\n};\n\n/**\n * @ngdoc provider\n * @name $animateProvider\n *\n * @description\n * Default implementation of $animate that doesn't perform any animations, instead just\n * synchronously performs DOM updates and resolves the returned runner promise.\n *\n * In order to enable animations the `ngAnimate` module has to be loaded.\n *\n * To see the functional implementation check out `src/ngAnimate/animate.js`.\n */\nvar $AnimateProvider = ['$provide', /** @this */ function($provide) {\n  var provider = this;\n  var classNameFilter = null;\n  var customFilter = null;\n\n  this.$$registeredAnimations = Object.create(null);\n\n   /**\n   * @ngdoc method\n   * @name $animateProvider#register\n   *\n   * @description\n   * Registers a new injectable animation factory function. The factory function produces the\n   * animation object which contains callback functions for each event that is expected to be\n   * animated.\n   *\n   *   * `eventFn`: `function(element, ... , doneFunction, options)`\n   *   The element to animate, the `doneFunction` and the options fed into the animation. Depending\n   *   on the type of animation additional arguments will be injected into the animation function. The\n   *   list below explains the function signatures for the different animation methods:\n   *\n   *   - setClass: function(element, addedClasses, removedClasses, doneFunction, options)\n   *   - addClass: function(element, addedClasses, doneFunction, options)\n   *   - removeClass: function(element, removedClasses, doneFunction, options)\n   *   - enter, leave, move: function(element, doneFunction, options)\n   *   - animate: function(element, fromStyles, toStyles, doneFunction, options)\n   *\n   *   Make sure to trigger the `doneFunction` once the animation is fully complete.\n   *\n   * ```js\n   *   return {\n   *     //enter, leave, move signature\n   *     eventFn : function(element, done, options) {\n   *       //code to run the animation\n   *       //once complete, then run done()\n   *       return function endFunction(wasCancelled) {\n   *         //code to cancel the animation\n   *       }\n   *     }\n   *   }\n   * ```\n   *\n   * @param {string} name The name of the animation (this is what the class-based CSS value will be compared to).\n   * @param {Function} factory The factory function that will be executed to return the animation\n   *                           object.\n   */\n  this.register = function(name, factory) {\n    if (name && name.charAt(0) !== '.') {\n      throw $animateMinErr('notcsel', 'Expecting class selector starting with \\'.\\' got \\'{0}\\'.', name);\n    }\n\n    var key = name + '-animation';\n    provider.$$registeredAnimations[name.substr(1)] = key;\n    $provide.factory(key, factory);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#customFilter\n   *\n   * @description\n   * Sets and/or returns the custom filter function that is used to \"filter\" animations, i.e.\n   * determine if an animation is allowed or not. When no filter is specified (the default), no\n   * animation will be blocked. Setting the `customFilter` value will only allow animations for\n   * which the filter function's return value is truthy.\n   *\n   * This allows to easily create arbitrarily complex rules for filtering animations, such as\n   * allowing specific events only, or enabling animations on specific subtrees of the DOM, etc.\n   * Filtering animations can also boost performance for low-powered devices, as well as\n   * applications containing a lot of structural operations.\n   *\n   * <div class=\"alert alert-success\">\n   *   **Best Practice:**\n   *   Keep the filtering function as lean as possible, because it will be called for each DOM\n   *   action (e.g. insertion, removal, class change) performed by \"animation-aware\" directives.\n   *   See {@link guide/animations#which-directives-support-animations- here} for a list of built-in\n   *   directives that support animations.\n   *   Performing computationally expensive or time-consuming operations on each call of the\n   *   filtering function can make your animations sluggish.\n   * </div>\n   *\n   * **Note:** If present, `customFilter` will be checked before\n   * {@link $animateProvider#classNameFilter classNameFilter}.\n   *\n   * @param {Function=} filterFn - The filter function which will be used to filter all animations.\n   *   If a falsy value is returned, no animation will be performed. The function will be called\n   *   with the following arguments:\n   *   - **node** `{DOMElement}` - The DOM element to be animated.\n   *   - **event** `{String}` - The name of the animation event (e.g. `enter`, `leave`, `addClass`\n   *     etc).\n   *   - **options** `{Object}` - A collection of options/styles used for the animation.\n   * @return {Function} The current filter function or `null` if there is none set.\n   */\n  this.customFilter = function(filterFn) {\n    if (arguments.length === 1) {\n      customFilter = isFunction(filterFn) ? filterFn : null;\n    }\n\n    return customFilter;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $animateProvider#classNameFilter\n   *\n   * @description\n   * Sets and/or returns the CSS class regular expression that is checked when performing\n   * an animation. Upon bootstrap the classNameFilter value is not set at all and will\n   * therefore enable $animate to attempt to perform an animation on any element that is triggered.\n   * When setting the `classNameFilter` value, animations will only be performed on elements\n   * that successfully match the filter expression. This in turn can boost performance\n   * for low-powered devices as well as applications containing a lot of structural operations.\n   *\n   * **Note:** If present, `classNameFilter` will be checked after\n   * {@link $animateProvider#customFilter customFilter}. If `customFilter` is present and returns\n   * false, `classNameFilter` will not be checked.\n   *\n   * @param {RegExp=} expression The className expression which will be checked against all animations\n   * @return {RegExp} The current CSS className expression value. If null then there is no expression value\n   */\n  this.classNameFilter = function(expression) {\n    if (arguments.length === 1) {\n      classNameFilter = (expression instanceof RegExp) ? expression : null;\n      if (classNameFilter) {\n        var reservedRegex = new RegExp('[(\\\\s|\\\\/)]' + NG_ANIMATE_CLASSNAME + '[(\\\\s|\\\\/)]');\n        if (reservedRegex.test(classNameFilter.toString())) {\n          classNameFilter = null;\n          throw $animateMinErr('nongcls', '$animateProvider.classNameFilter(regex) prohibits accepting a regex value which matches/contains the \"{0}\" CSS class.', NG_ANIMATE_CLASSNAME);\n        }\n      }\n    }\n    return classNameFilter;\n  };\n\n  this.$get = ['$$animateQueue', function($$animateQueue) {\n    function domInsert(element, parentElement, afterElement) {\n      // if for some reason the previous element was removed\n      // from the dom sometime before this code runs then let's\n      // just stick to using the parent element as the anchor\n      if (afterElement) {\n        var afterNode = extractElementNode(afterElement);\n        if (afterNode && !afterNode.parentNode && !afterNode.previousElementSibling) {\n          afterElement = null;\n        }\n      }\n      if (afterElement) {\n        afterElement.after(element);\n      } else {\n        parentElement.prepend(element);\n      }\n    }\n\n    /**\n     * @ngdoc service\n     * @name $animate\n     * @description The $animate service exposes a series of DOM utility methods that provide support\n     * for animation hooks. The default behavior is the application of DOM operations, however,\n     * when an animation is detected (and animations are enabled), $animate will do the heavy lifting\n     * to ensure that animation runs with the triggered DOM operation.\n     *\n     * By default $animate doesn't trigger any animations. This is because the `ngAnimate` module isn't\n     * included and only when it is active then the animation hooks that `$animate` triggers will be\n     * functional. Once active then all structural `ng-` directives will trigger animations as they perform\n     * their DOM-related operations (enter, leave and move). Other directives such as `ngClass`,\n     * `ngShow`, `ngHide` and `ngMessages` also provide support for animations.\n     *\n     * It is recommended that the`$animate` service is always used when executing DOM-related procedures within directives.\n     *\n     * To learn more about enabling animation support, click here to visit the\n     * {@link ngAnimate ngAnimate module page}.\n     */\n    return {\n      // we don't call it directly since non-existant arguments may\n      // be interpreted as null within the sub enabled function\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#on\n       * @kind function\n       * @description Sets up an event listener to fire whenever the animation event (enter, leave, move, etc...)\n       *    has fired on the given element or among any of its children. Once the listener is fired, the provided callback\n       *    is fired with the following params:\n       *\n       * ```js\n       * $animate.on('enter', container,\n       *    function callback(element, phase) {\n       *      // cool we detected an enter animation within the container\n       *    }\n       * );\n       * ```\n       *\n       * <div class=\"alert alert-warning\">\n       * **Note**: Generally, the events that are fired correspond 1:1 to `$animate` method names,\n       * e.g. {@link ng.$animate#addClass addClass()} will fire `addClass`, and {@link ng.ngClass}\n       * will fire `addClass` if classes are added, and `removeClass` if classes are removed.\n       * However, there are two exceptions:\n       *\n       * <ul>\n       *   <li>if both an {@link ng.$animate#addClass addClass()} and a\n       *   {@link ng.$animate#removeClass removeClass()} action are performed during the same\n       *   animation, the event fired will be `setClass`. This is true even for `ngClass`.</li>\n       *   <li>an {@link ng.$animate#animate animate()} call that adds and removes classes will fire\n       *   the `setClass` event, but if it either removes or adds classes,\n       *   it will fire `animate` instead.</li>\n       * </ul>\n       *\n       * </div>\n       *\n       * @param {string} event the animation event that will be captured (e.g. enter, leave, move, addClass, removeClass, etc...)\n       * @param {DOMElement} container the container element that will capture each of the animation events that are fired on itself\n       *     as well as among its children\n       * @param {Function} callback the callback function that will be fired when the listener is triggered.\n       *\n       * The arguments present in the callback function are:\n       * * `element` - The captured DOM element that the animation was fired on.\n       * * `phase` - The phase of the animation. The two possible phases are **start** (when the animation starts) and **close** (when it ends).\n       * * `data` - an object with these properties:\n       *     * addClass - `{string|null}` - space-separated CSS classes to add to the element\n       *     * removeClass - `{string|null}` - space-separated CSS classes to remove from the element\n       *     * from - `{Object|null}` - CSS properties & values at the beginning of the animation\n       *     * to - `{Object|null}` - CSS properties & values at the end of the animation\n       *\n       * Note that the callback does not trigger a scope digest. Wrap your call into a\n       * {@link $rootScope.Scope#$apply scope.$apply} to propagate changes to the scope.\n       */\n      on: $$animateQueue.on,\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#off\n       * @kind function\n       * @description Deregisters an event listener based on the event which has been associated with the provided element. This method\n       * can be used in three different ways depending on the arguments:\n       *\n       * ```js\n       * // remove all the animation event listeners listening for `enter`\n       * $animate.off('enter');\n       *\n       * // remove listeners for all animation events from the container element\n       * $animate.off(container);\n       *\n       * // remove all the animation event listeners listening for `enter` on the given element and its children\n       * $animate.off('enter', container);\n       *\n       * // remove the event listener function provided by `callback` that is set\n       * // to listen for `enter` on the given `container` as well as its children\n       * $animate.off('enter', container, callback);\n       * ```\n       *\n       * @param {string|DOMElement} event|container the animation event (e.g. enter, leave, move,\n       * addClass, removeClass, etc...), or the container element. If it is the element, all other\n       * arguments are ignored.\n       * @param {DOMElement=} container the container element the event listener was placed on\n       * @param {Function=} callback the callback function that was registered as the listener\n       */\n      off: $$animateQueue.off,\n\n      /**\n       * @ngdoc method\n       * @name $animate#pin\n       * @kind function\n       * @description Associates the provided element with a host parent element to allow the element to be animated even if it exists\n       *    outside of the DOM structure of the AngularJS application. By doing so, any animation triggered via `$animate` can be issued on the\n       *    element despite being outside the realm of the application or within another application. Say for example if the application\n       *    was bootstrapped on an element that is somewhere inside of the `<body>` tag, but we wanted to allow for an element to be situated\n       *    as a direct child of `document.body`, then this can be achieved by pinning the element via `$animate.pin(element)`. Keep in mind\n       *    that calling `$animate.pin(element, parentElement)` will not actually insert into the DOM anywhere; it will just create the association.\n       *\n       *    Note that this feature is only active when the `ngAnimate` module is used.\n       *\n       * @param {DOMElement} element the external element that will be pinned\n       * @param {DOMElement} parentElement the host parent element that will be associated with the external element\n       */\n      pin: $$animateQueue.pin,\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enabled\n       * @kind function\n       * @description Used to get and set whether animations are enabled or not on the entire application or on an element and its children. This\n       * function can be called in four ways:\n       *\n       * ```js\n       * // returns true or false\n       * $animate.enabled();\n       *\n       * // changes the enabled state for all animations\n       * $animate.enabled(false);\n       * $animate.enabled(true);\n       *\n       * // returns true or false if animations are enabled for an element\n       * $animate.enabled(element);\n       *\n       * // changes the enabled state for an element and its children\n       * $animate.enabled(element, true);\n       * $animate.enabled(element, false);\n       * ```\n       *\n       * @param {DOMElement=} element the element that will be considered for checking/setting the enabled state\n       * @param {boolean=} enabled whether or not the animations will be enabled for the element\n       *\n       * @return {boolean} whether or not animations are enabled\n       */\n      enabled: $$animateQueue.enabled,\n\n      /**\n       * @ngdoc method\n       * @name $animate#cancel\n       * @kind function\n       * @description Cancels the provided animation and applies the end state of the animation.\n       * Note that this does not cancel the underlying operation, e.g. the setting of classes or\n       * adding the element to the DOM.\n       *\n       * @param {animationRunner} animationRunner An animation runner returned by an $animate function.\n       *\n       * @example\n        <example module=\"animationExample\" deps=\"angular-animate.js\" animations=\"true\" name=\"animate-cancel\">\n          <file name=\"app.js\">\n            angular.module('animationExample', ['ngAnimate']).component('cancelExample', {\n              templateUrl: 'template.html',\n              controller: function($element, $animate) {\n                this.runner = null;\n\n                this.addClass = function() {\n                  this.runner = $animate.addClass($element.find('div'), 'red');\n                  var ctrl = this;\n                  this.runner.finally(function() {\n                    ctrl.runner = null;\n                  });\n                };\n\n                this.removeClass = function() {\n                  this.runner = $animate.removeClass($element.find('div'), 'red');\n                  var ctrl = this;\n                  this.runner.finally(function() {\n                    ctrl.runner = null;\n                  });\n                };\n\n                this.cancel = function() {\n                  $animate.cancel(this.runner);\n                };\n              }\n            });\n          </file>\n          <file name=\"template.html\">\n            <p>\n              <button id=\"add\" ng-click=\"$ctrl.addClass()\">Add</button>\n              <button ng-click=\"$ctrl.removeClass()\">Remove</button>\n              <br>\n              <button id=\"cancel\" ng-click=\"$ctrl.cancel()\" ng-disabled=\"!$ctrl.runner\">Cancel</button>\n              <br>\n              <div id=\"target\">CSS-Animated Text</div>\n            </p>\n          </file>\n          <file name=\"index.html\">\n            <cancel-example></cancel-example>\n          </file>\n          <file name=\"style.css\">\n            .red-add, .red-remove {\n              transition: all 4s cubic-bezier(0.250, 0.460, 0.450, 0.940);\n            }\n\n            .red,\n            .red-add.red-add-active {\n              color: #FF0000;\n              font-size: 40px;\n            }\n\n            .red-remove.red-remove-active {\n              font-size: 10px;\n              color: black;\n            }\n\n          </file>\n        </example>\n       */\n      cancel: function(runner) {\n        if (runner.cancel) {\n          runner.cancel();\n        }\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#enter\n       * @kind function\n       * @description Inserts the element into the DOM either after the `after` element (if provided) or\n       *   as the first child within the `parent` element and then triggers an animation.\n       *   A promise is returned that will be resolved during the next digest once the animation\n       *   has completed.\n       *\n       * @param {DOMElement} element the element which will be inserted into the DOM\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (so long as the after element is not present)\n       * @param {DOMElement=} after the sibling element after which the element will be appended\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      enter: function(element, parent, after, options) {\n        parent = parent && jqLite(parent);\n        after = after && jqLite(after);\n        parent = parent || after.parent();\n        domInsert(element, parent, after);\n        return $$animateQueue.push(element, 'enter', prepareAnimateOptions(options));\n      },\n\n      /**\n       *\n       * @ngdoc method\n       * @name $animate#move\n       * @kind function\n       * @description Inserts (moves) the element into its new position in the DOM either after\n       *   the `after` element (if provided) or as the first child within the `parent` element\n       *   and then triggers an animation. A promise is returned that will be resolved\n       *   during the next digest once the animation has completed.\n       *\n       * @param {DOMElement} element the element which will be moved into the new DOM position\n       * @param {DOMElement} parent the parent element which will append the element as\n       *   a child (so long as the after element is not present)\n       * @param {DOMElement=} after the sibling element after which the element will be appended\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      move: function(element, parent, after, options) {\n        parent = parent && jqLite(parent);\n        after = after && jqLite(after);\n        parent = parent || after.parent();\n        domInsert(element, parent, after);\n        return $$animateQueue.push(element, 'move', prepareAnimateOptions(options));\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#leave\n       * @kind function\n       * @description Triggers an animation and then removes the element from the DOM.\n       * When the function is called a promise is returned that will be resolved during the next\n       * digest once the animation has completed.\n       *\n       * @param {DOMElement} element the element which will be removed from the DOM\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      leave: function(element, options) {\n        return $$animateQueue.push(element, 'leave', prepareAnimateOptions(options), function() {\n          element.remove();\n        });\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#addClass\n       * @kind function\n       *\n       * @description Triggers an addClass animation surrounding the addition of the provided CSS class(es). Upon\n       *   execution, the addClass operation will only be handled after the next digest and it will not trigger an\n       *   animation if element already contains the CSS class or if the class is removed at a later step.\n       *   Note that class-based animations are treated differently compared to structural animations\n       *   (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *   depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} className the CSS class(es) that will be added (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} animationRunner the animation runner\n       */\n      addClass: function(element, className, options) {\n        options = prepareAnimateOptions(options);\n        options.addClass = mergeClasses(options.addclass, className);\n        return $$animateQueue.push(element, 'addClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#removeClass\n       * @kind function\n       *\n       * @description Triggers a removeClass animation surrounding the removal of the provided CSS class(es). Upon\n       *   execution, the removeClass operation will only be handled after the next digest and it will not trigger an\n       *   animation if element does not contain the CSS class or if the class is added at a later step.\n       *   Note that class-based animations are treated differently compared to structural animations\n       *   (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *   depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} className the CSS class(es) that will be removed (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      removeClass: function(element, className, options) {\n        options = prepareAnimateOptions(options);\n        options.removeClass = mergeClasses(options.removeClass, className);\n        return $$animateQueue.push(element, 'removeClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#setClass\n       * @kind function\n       *\n       * @description Performs both the addition and removal of a CSS classes on an element and (during the process)\n       *    triggers an animation surrounding the class addition/removal. Much like `$animate.addClass` and\n       *    `$animate.removeClass`, `setClass` will only evaluate the classes being added/removed once a digest has\n       *    passed. Note that class-based animations are treated differently compared to structural animations\n       *    (like enter, move and leave) since the CSS classes may be added/removed at different points\n       *    depending if CSS or JavaScript animations are used.\n       *\n       * @param {DOMElement} element the element which the CSS classes will be applied to\n       * @param {string} add the CSS class(es) that will be added (multiple classes are separated via spaces)\n       * @param {string} remove the CSS class(es) that will be removed (multiple classes are separated via spaces)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      setClass: function(element, add, remove, options) {\n        options = prepareAnimateOptions(options);\n        options.addClass = mergeClasses(options.addClass, add);\n        options.removeClass = mergeClasses(options.removeClass, remove);\n        return $$animateQueue.push(element, 'setClass', options);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $animate#animate\n       * @kind function\n       *\n       * @description Performs an inline animation on the element which applies the provided to and from CSS styles to the element.\n       * If any detected CSS transition, keyframe or JavaScript matches the provided className value, then the animation will take\n       * on the provided styles. For example, if a transition animation is set for the given className, then the provided `from` and\n       * `to` styles will be applied alongside the given transition. If the CSS style provided in `from` does not have a corresponding\n       * style in `to`, the style in `from` is applied immediately, and no animation is run.\n       * If a JavaScript animation is detected then the provided styles will be given in as function parameters into the `animate`\n       * method (or as part of the `options` parameter):\n       *\n       * ```js\n       * ngModule.animation('.my-inline-animation', function() {\n       *   return {\n       *     animate : function(element, from, to, done, options) {\n       *       //animation\n       *       done();\n       *     }\n       *   }\n       * });\n       * ```\n       *\n       * @param {DOMElement} element the element which the CSS styles will be applied to\n       * @param {object} from the from (starting) CSS styles that will be applied to the element and across the animation.\n       * @param {object} to the to (destination) CSS styles that will be applied to the element and across the animation.\n       * @param {string=} className an optional CSS class that will be applied to the element for the duration of the animation. If\n       *    this value is left as empty then a CSS class of `ng-inline-animate` will be applied to the element.\n       *    (Note that if no animation is detected then this value will not be applied to the element.)\n       * @param {object=} options an optional collection of options/styles that will be applied to the element.\n       *   The object can have the following properties:\n       *\n       *   - **addClass** - `{string}` - space-separated CSS classes to add to element\n       *   - **from** - `{Object}` - CSS properties & values at the beginning of animation. Must have matching `to`\n       *   - **removeClass** - `{string}` - space-separated CSS classes to remove from element\n       *   - **to** - `{Object}` - CSS properties & values at end of animation. Must have matching `from`\n       *\n       * @return {Runner} the animation runner\n       */\n      animate: function(element, from, to, className, options) {\n        options = prepareAnimateOptions(options);\n        options.from = options.from ? extend(options.from, from) : from;\n        options.to   = options.to   ? extend(options.to, to)     : to;\n\n        className = className || 'ng-inline-animate';\n        options.tempClasses = mergeClasses(options.tempClasses, className);\n        return $$animateQueue.push(element, 'animate', options);\n      }\n    };\n  }];\n}];\n\nvar $$AnimateAsyncRunFactoryProvider = /** @this */ function() {\n  this.$get = ['$$rAF', function($$rAF) {\n    var waitQueue = [];\n\n    function waitForTick(fn) {\n      waitQueue.push(fn);\n      if (waitQueue.length > 1) return;\n      $$rAF(function() {\n        for (var i = 0; i < waitQueue.length; i++) {\n          waitQueue[i]();\n        }\n        waitQueue = [];\n      });\n    }\n\n    return function() {\n      var passed = false;\n      waitForTick(function() {\n        passed = true;\n      });\n      return function(callback) {\n        if (passed) {\n          callback();\n        } else {\n          waitForTick(callback);\n        }\n      };\n    };\n  }];\n};\n\nvar $$AnimateRunnerFactoryProvider = /** @this */ function() {\n  this.$get = ['$q', '$sniffer', '$$animateAsyncRun', '$$isDocumentHidden', '$timeout',\n       function($q,   $sniffer,   $$animateAsyncRun,   $$isDocumentHidden,   $timeout) {\n\n    var INITIAL_STATE = 0;\n    var DONE_PENDING_STATE = 1;\n    var DONE_COMPLETE_STATE = 2;\n\n    AnimateRunner.chain = function(chain, callback) {\n      var index = 0;\n\n      next();\n      function next() {\n        if (index === chain.length) {\n          callback(true);\n          return;\n        }\n\n        chain[index](function(response) {\n          if (response === false) {\n            callback(false);\n            return;\n          }\n          index++;\n          next();\n        });\n      }\n    };\n\n    AnimateRunner.all = function(runners, callback) {\n      var count = 0;\n      var status = true;\n      forEach(runners, function(runner) {\n        runner.done(onProgress);\n      });\n\n      function onProgress(response) {\n        status = status && response;\n        if (++count === runners.length) {\n          callback(status);\n        }\n      }\n    };\n\n    function AnimateRunner(host) {\n      this.setHost(host);\n\n      var rafTick = $$animateAsyncRun();\n      var timeoutTick = function(fn) {\n        $timeout(fn, 0, false);\n      };\n\n      this._doneCallbacks = [];\n      this._tick = function(fn) {\n        if ($$isDocumentHidden()) {\n          timeoutTick(fn);\n        } else {\n          rafTick(fn);\n        }\n      };\n      this._state = 0;\n    }\n\n    AnimateRunner.prototype = {\n      setHost: function(host) {\n        this.host = host || {};\n      },\n\n      done: function(fn) {\n        if (this._state === DONE_COMPLETE_STATE) {\n          fn();\n        } else {\n          this._doneCallbacks.push(fn);\n        }\n      },\n\n      progress: noop,\n\n      getPromise: function() {\n        if (!this.promise) {\n          var self = this;\n          this.promise = $q(function(resolve, reject) {\n            self.done(function(status) {\n              if (status === false) {\n                reject();\n              } else {\n                resolve();\n              }\n            });\n          });\n        }\n        return this.promise;\n      },\n\n      then: function(resolveHandler, rejectHandler) {\n        return this.getPromise().then(resolveHandler, rejectHandler);\n      },\n\n      'catch': function(handler) {\n        return this.getPromise()['catch'](handler);\n      },\n\n      'finally': function(handler) {\n        return this.getPromise()['finally'](handler);\n      },\n\n      pause: function() {\n        if (this.host.pause) {\n          this.host.pause();\n        }\n      },\n\n      resume: function() {\n        if (this.host.resume) {\n          this.host.resume();\n        }\n      },\n\n      end: function() {\n        if (this.host.end) {\n          this.host.end();\n        }\n        this._resolve(true);\n      },\n\n      cancel: function() {\n        if (this.host.cancel) {\n          this.host.cancel();\n        }\n        this._resolve(false);\n      },\n\n      complete: function(response) {\n        var self = this;\n        if (self._state === INITIAL_STATE) {\n          self._state = DONE_PENDING_STATE;\n          self._tick(function() {\n            self._resolve(response);\n          });\n        }\n      },\n\n      _resolve: function(response) {\n        if (this._state !== DONE_COMPLETE_STATE) {\n          forEach(this._doneCallbacks, function(fn) {\n            fn(response);\n          });\n          this._doneCallbacks.length = 0;\n          this._state = DONE_COMPLETE_STATE;\n        }\n      }\n    };\n\n    return AnimateRunner;\n  }];\n};\n\n/* exported $CoreAnimateCssProvider */\n\n/**\n * @ngdoc service\n * @name $animateCss\n * @kind object\n * @this\n *\n * @description\n * This is the core version of `$animateCss`. By default, only when the `ngAnimate` is included,\n * then the `$animateCss` service will actually perform animations.\n *\n * Click here {@link ngAnimate.$animateCss to read the documentation for $animateCss}.\n */\nvar $CoreAnimateCssProvider = function() {\n  this.$get = ['$$rAF', '$q', '$$AnimateRunner', function($$rAF, $q, $$AnimateRunner) {\n\n    return function(element, initialOptions) {\n      // all of the animation functions should create\n      // a copy of the options data, however, if a\n      // parent service has already created a copy then\n      // we should stick to using that\n      var options = initialOptions || {};\n      if (!options.$$prepared) {\n        options = copy(options);\n      }\n\n      // there is no point in applying the styles since\n      // there is no animation that goes on at all in\n      // this version of $animateCss.\n      if (options.cleanupStyles) {\n        options.from = options.to = null;\n      }\n\n      if (options.from) {\n        element.css(options.from);\n        options.from = null;\n      }\n\n      var closed, runner = new $$AnimateRunner();\n      return {\n        start: run,\n        end: run\n      };\n\n      function run() {\n        $$rAF(function() {\n          applyAnimationContents();\n          if (!closed) {\n            runner.complete();\n          }\n          closed = true;\n        });\n        return runner;\n      }\n\n      function applyAnimationContents() {\n        if (options.addClass) {\n          element.addClass(options.addClass);\n          options.addClass = null;\n        }\n        if (options.removeClass) {\n          element.removeClass(options.removeClass);\n          options.removeClass = null;\n        }\n        if (options.to) {\n          element.css(options.to);\n          options.to = null;\n        }\n      }\n    };\n  }];\n};\n\n/* global getHash: true, stripHash: false */\n\nfunction getHash(url) {\n  var index = url.indexOf('#');\n  return index === -1 ? '' : url.substr(index);\n}\n\nfunction trimEmptyHash(url) {\n  return url.replace(/#$/, '');\n}\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $browser\n * @requires $log\n * @description\n * This object has two goals:\n *\n * - hide all the global state in the browser caused by the window object\n * - abstract away all the browser specific features and inconsistencies\n *\n * For tests we provide {@link ngMock.$browser mock implementation} of the `$browser`\n * service, which can be used for convenient testing of the application without the interaction with\n * the real browser apis.\n */\n/**\n * @param {object} window The global window object.\n * @param {object} document jQuery wrapped document.\n * @param {object} $log window.console or an object with the same interface.\n * @param {object} $sniffer $sniffer service\n */\nfunction Browser(window, document, $log, $sniffer, $$taskTrackerFactory) {\n  var self = this,\n      location = window.location,\n      history = window.history,\n      setTimeout = window.setTimeout,\n      clearTimeout = window.clearTimeout,\n      pendingDeferIds = {},\n      taskTracker = $$taskTrackerFactory($log);\n\n  self.isMock = false;\n\n  //////////////////////////////////////////////////////////////\n  // Task-tracking API\n  //////////////////////////////////////////////////////////////\n\n  // TODO(vojta): remove this temporary api\n  self.$$completeOutstandingRequest = taskTracker.completeTask;\n  self.$$incOutstandingRequestCount = taskTracker.incTaskCount;\n\n  // TODO(vojta): prefix this method with $$ ?\n  self.notifyWhenNoOutstandingRequests = taskTracker.notifyWhenNoPendingTasks;\n\n  //////////////////////////////////////////////////////////////\n  // URL API\n  //////////////////////////////////////////////////////////////\n\n  var cachedState, lastHistoryState,\n      lastBrowserUrl = location.href,\n      baseElement = document.find('base'),\n      pendingLocation = null,\n      getCurrentState = !$sniffer.history ? noop : function getCurrentState() {\n        try {\n          return history.state;\n        } catch (e) {\n          // MSIE can reportedly throw when there is no state (UNCONFIRMED).\n        }\n      };\n\n  cacheState();\n\n  /**\n   * @name $browser#url\n   *\n   * @description\n   * GETTER:\n   * Without any argument, this method just returns current value of `location.href` (with a\n   * trailing `#` stripped of if the hash is empty).\n   *\n   * SETTER:\n   * With at least one argument, this method sets url to new value.\n   * If html5 history api supported, `pushState`/`replaceState` is used, otherwise\n   * `location.href`/`location.replace` is used.\n   * Returns its own instance to allow chaining.\n   *\n   * NOTE: this api is intended for use only by the `$location` service. Please use the\n   * {@link ng.$location $location service} to change url.\n   *\n   * @param {string} url New url (when used as setter)\n   * @param {boolean=} replace Should new url replace current history record?\n   * @param {object=} state State object to use with `pushState`/`replaceState`\n   */\n  self.url = function(url, replace, state) {\n    // In modern browsers `history.state` is `null` by default; treating it separately\n    // from `undefined` would cause `$browser.url('/foo')` to change `history.state`\n    // to undefined via `pushState`. Instead, let's change `undefined` to `null` here.\n    if (isUndefined(state)) {\n      state = null;\n    }\n\n    // Android Browser BFCache causes location, history reference to become stale.\n    if (location !== window.location) location = window.location;\n    if (history !== window.history) history = window.history;\n\n    // setter\n    if (url) {\n      var sameState = lastHistoryState === state;\n\n      // Normalize the inputted URL\n      url = urlResolve(url).href;\n\n      // Don't change anything if previous and current URLs and states match. This also prevents\n      // IE<10 from getting into redirect loop when in LocationHashbangInHtml5Url mode.\n      // See https://github.com/angular/angular.js/commit/ffb2701\n      if (lastBrowserUrl === url && (!$sniffer.history || sameState)) {\n        return self;\n      }\n      var sameBase = lastBrowserUrl && stripHash(lastBrowserUrl) === stripHash(url);\n      lastBrowserUrl = url;\n      lastHistoryState = state;\n      // Don't use history API if only the hash changed\n      // due to a bug in IE10/IE11 which leads\n      // to not firing a `hashchange` nor `popstate` event\n      // in some cases (see #9143).\n      if ($sniffer.history && (!sameBase || !sameState)) {\n        history[replace ? 'replaceState' : 'pushState'](state, '', url);\n        cacheState();\n      } else {\n        if (!sameBase) {\n          pendingLocation = url;\n        }\n        if (replace) {\n          location.replace(url);\n        } else if (!sameBase) {\n          location.href = url;\n        } else {\n          location.hash = getHash(url);\n        }\n        if (location.href !== url) {\n          pendingLocation = url;\n        }\n      }\n      if (pendingLocation) {\n        pendingLocation = url;\n      }\n      return self;\n    // getter\n    } else {\n      // - pendingLocation is needed as browsers don't allow to read out\n      //   the new location.href if a reload happened or if there is a bug like in iOS 9 (see\n      //   https://openradar.appspot.com/22186109).\n      return trimEmptyHash(pendingLocation || location.href);\n    }\n  };\n\n  /**\n   * @name $browser#state\n   *\n   * @description\n   * This method is a getter.\n   *\n   * Return history.state or null if history.state is undefined.\n   *\n   * @returns {object} state\n   */\n  self.state = function() {\n    return cachedState;\n  };\n\n  var urlChangeListeners = [],\n      urlChangeInit = false;\n\n  function cacheStateAndFireUrlChange() {\n    pendingLocation = null;\n    fireStateOrUrlChange();\n  }\n\n  // This variable should be used *only* inside the cacheState function.\n  var lastCachedState = null;\n  function cacheState() {\n    // This should be the only place in $browser where `history.state` is read.\n    cachedState = getCurrentState();\n    cachedState = isUndefined(cachedState) ? null : cachedState;\n\n    // Prevent callbacks fo fire twice if both hashchange & popstate were fired.\n    if (equals(cachedState, lastCachedState)) {\n      cachedState = lastCachedState;\n    }\n\n    lastCachedState = cachedState;\n    lastHistoryState = cachedState;\n  }\n\n  function fireStateOrUrlChange() {\n    var prevLastHistoryState = lastHistoryState;\n    cacheState();\n\n    if (lastBrowserUrl === self.url() && prevLastHistoryState === cachedState) {\n      return;\n    }\n\n    lastBrowserUrl = self.url();\n    lastHistoryState = cachedState;\n    forEach(urlChangeListeners, function(listener) {\n      listener(self.url(), cachedState);\n    });\n  }\n\n  /**\n   * @name $browser#onUrlChange\n   *\n   * @description\n   * Register callback function that will be called, when url changes.\n   *\n   * It's only called when the url is changed from outside of AngularJS:\n   * - user types different url into address bar\n   * - user clicks on history (forward/back) button\n   * - user clicks on a link\n   *\n   * It's not called when url is changed by $browser.url() method\n   *\n   * The listener gets called with new url as parameter.\n   *\n   * NOTE: this api is intended for use only by the $location service. Please use the\n   * {@link ng.$location $location service} to monitor url changes in AngularJS apps.\n   *\n   * @param {function(string)} listener Listener function to be called when url changes.\n   * @return {function(string)} Returns the registered listener fn - handy if the fn is anonymous.\n   */\n  self.onUrlChange = function(callback) {\n    // TODO(vojta): refactor to use node's syntax for events\n    if (!urlChangeInit) {\n      // We listen on both (hashchange/popstate) when available, as some browsers don't\n      // fire popstate when user changes the address bar and don't fire hashchange when url\n      // changed by push/replaceState\n\n      // html5 history api - popstate event\n      if ($sniffer.history) jqLite(window).on('popstate', cacheStateAndFireUrlChange);\n      // hashchange event\n      jqLite(window).on('hashchange', cacheStateAndFireUrlChange);\n\n      urlChangeInit = true;\n    }\n\n    urlChangeListeners.push(callback);\n    return callback;\n  };\n\n  /**\n   * @private\n   * Remove popstate and hashchange handler from window.\n   *\n   * NOTE: this api is intended for use only by $rootScope.\n   */\n  self.$$applicationDestroyed = function() {\n    jqLite(window).off('hashchange popstate', cacheStateAndFireUrlChange);\n  };\n\n  /**\n   * Checks whether the url has changed outside of AngularJS.\n   * Needs to be exported to be able to check for changes that have been done in sync,\n   * as hashchange/popstate events fire in async.\n   */\n  self.$$checkUrlChange = fireStateOrUrlChange;\n\n  //////////////////////////////////////////////////////////////\n  // Misc API\n  //////////////////////////////////////////////////////////////\n\n  /**\n   * @name $browser#baseHref\n   *\n   * @description\n   * Returns current <base href>\n   * (always relative - without domain)\n   *\n   * @returns {string} The current base href\n   */\n  self.baseHref = function() {\n    var href = baseElement.attr('href');\n    return href ? href.replace(/^(https?:)?\\/\\/[^/]*/, '') : '';\n  };\n\n  /**\n   * @name $browser#defer\n   * @param {function()} fn A function, who's execution should be deferred.\n   * @param {number=} [delay=0] Number of milliseconds to defer the function execution.\n   * @param {string=} [taskType=DEFAULT_TASK_TYPE] The type of task that is deferred.\n   * @returns {*} DeferId that can be used to cancel the task via `$browser.defer.cancel()`.\n   *\n   * @description\n   * Executes a fn asynchronously via `setTimeout(fn, delay)`.\n   *\n   * Unlike when calling `setTimeout` directly, in test this function is mocked and instead of using\n   * `setTimeout` in tests, the fns are queued in an array, which can be programmatically flushed\n   * via `$browser.defer.flush()`.\n   *\n   */\n  self.defer = function(fn, delay, taskType) {\n    var timeoutId;\n\n    delay = delay || 0;\n    taskType = taskType || taskTracker.DEFAULT_TASK_TYPE;\n\n    taskTracker.incTaskCount(taskType);\n    timeoutId = setTimeout(function() {\n      delete pendingDeferIds[timeoutId];\n      taskTracker.completeTask(fn, taskType);\n    }, delay);\n    pendingDeferIds[timeoutId] = taskType;\n\n    return timeoutId;\n  };\n\n\n  /**\n   * @name $browser#defer.cancel\n   *\n   * @description\n   * Cancels a deferred task identified with `deferId`.\n   *\n   * @param {*} deferId Token returned by the `$browser.defer` function.\n   * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n   *                    canceled.\n   */\n  self.defer.cancel = function(deferId) {\n    if (pendingDeferIds.hasOwnProperty(deferId)) {\n      var taskType = pendingDeferIds[deferId];\n      delete pendingDeferIds[deferId];\n      clearTimeout(deferId);\n      taskTracker.completeTask(noop, taskType);\n      return true;\n    }\n    return false;\n  };\n\n}\n\n/** @this */\nfunction $BrowserProvider() {\n  this.$get = ['$window', '$log', '$sniffer', '$document', '$$taskTrackerFactory',\n       function($window,   $log,   $sniffer,   $document,   $$taskTrackerFactory) {\n    return new Browser($window, $document, $log, $sniffer, $$taskTrackerFactory);\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $cacheFactory\n * @this\n *\n * @description\n * Factory that constructs {@link $cacheFactory.Cache Cache} objects and gives access to\n * them.\n *\n * ```js\n *\n *  var cache = $cacheFactory('cacheId');\n *  expect($cacheFactory.get('cacheId')).toBe(cache);\n *  expect($cacheFactory.get('noSuchCacheId')).not.toBeDefined();\n *\n *  cache.put(\"key\", \"value\");\n *  cache.put(\"another key\", \"another value\");\n *\n *  // We've specified no options on creation\n *  expect(cache.info()).toEqual({id: 'cacheId', size: 2});\n *\n * ```\n *\n *\n * @param {string} cacheId Name or id of the newly created cache.\n * @param {object=} options Options object that specifies the cache behavior. Properties:\n *\n *   - `{number=}` `capacity` — turns the cache into LRU cache.\n *\n * @returns {object} Newly created cache object with the following set of methods:\n *\n * - `{object}` `info()` — Returns id, size, and options of cache.\n * - `{{*}}` `put({string} key, {*} value)` — Puts a new key-value pair into the cache and returns\n *   it.\n * - `{{*}}` `get({string} key)` — Returns cached value for `key` or undefined for cache miss.\n * - `{void}` `remove({string} key)` — Removes a key-value pair from the cache.\n * - `{void}` `removeAll()` — Removes all cached values.\n * - `{void}` `destroy()` — Removes references to this cache from $cacheFactory.\n *\n * @example\n   <example module=\"cacheExampleApp\" name=\"cache-factory\">\n     <file name=\"index.html\">\n       <div ng-controller=\"CacheController\">\n         <input ng-model=\"newCacheKey\" placeholder=\"Key\">\n         <input ng-model=\"newCacheValue\" placeholder=\"Value\">\n         <button ng-click=\"put(newCacheKey, newCacheValue)\">Cache</button>\n\n         <p ng-if=\"keys.length\">Cached Values</p>\n         <div ng-repeat=\"key in keys\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"cache.get(key)\"></b>\n         </div>\n\n         <p>Cache Info</p>\n         <div ng-repeat=\"(key, value) in cache.info()\">\n           <span ng-bind=\"key\"></span>\n           <span>: </span>\n           <b ng-bind=\"value\"></b>\n         </div>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('cacheExampleApp', []).\n         controller('CacheController', ['$scope', '$cacheFactory', function($scope, $cacheFactory) {\n           $scope.keys = [];\n           $scope.cache = $cacheFactory('cacheId');\n           $scope.put = function(key, value) {\n             if (angular.isUndefined($scope.cache.get(key))) {\n               $scope.keys.push(key);\n             }\n             $scope.cache.put(key, angular.isUndefined(value) ? null : value);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       p {\n         margin: 10px 0 3px;\n       }\n     </file>\n   </example>\n */\nfunction $CacheFactoryProvider() {\n\n  this.$get = function() {\n    var caches = {};\n\n    function cacheFactory(cacheId, options) {\n      if (cacheId in caches) {\n        throw minErr('$cacheFactory')('iid', 'CacheId \\'{0}\\' is already taken!', cacheId);\n      }\n\n      var size = 0,\n          stats = extend({}, options, {id: cacheId}),\n          data = createMap(),\n          capacity = (options && options.capacity) || Number.MAX_VALUE,\n          lruHash = createMap(),\n          freshEnd = null,\n          staleEnd = null;\n\n      /**\n       * @ngdoc type\n       * @name $cacheFactory.Cache\n       *\n       * @description\n       * A cache object used to store and retrieve data, primarily used by\n       * {@link $templateRequest $templateRequest} and the {@link ng.directive:script script}\n       * directive to cache templates and other data.\n       *\n       * ```js\n       *  angular.module('superCache')\n       *    .factory('superCache', ['$cacheFactory', function($cacheFactory) {\n       *      return $cacheFactory('super-cache');\n       *    }]);\n       * ```\n       *\n       * Example test:\n       *\n       * ```js\n       *  it('should behave like a cache', inject(function(superCache) {\n       *    superCache.put('key', 'value');\n       *    superCache.put('another key', 'another value');\n       *\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 2\n       *    });\n       *\n       *    superCache.remove('another key');\n       *    expect(superCache.get('another key')).toBeUndefined();\n       *\n       *    superCache.removeAll();\n       *    expect(superCache.info()).toEqual({\n       *      id: 'super-cache',\n       *      size: 0\n       *    });\n       *  }));\n       * ```\n       */\n      return (caches[cacheId] = {\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#put\n         * @kind function\n         *\n         * @description\n         * Inserts a named entry into the {@link $cacheFactory.Cache Cache} object to be\n         * retrieved later, and incrementing the size of the cache if the key was not already\n         * present in the cache. If behaving like an LRU cache, it will also remove stale\n         * entries from the set.\n         *\n         * It will not insert undefined values into the cache.\n         *\n         * @param {string} key the key under which the cached data is stored.\n         * @param {*} value the value to store alongside the key. If it is undefined, the key\n         *    will not be stored.\n         * @returns {*} the value stored.\n         */\n        put: function(key, value) {\n          if (isUndefined(value)) return;\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key] || (lruHash[key] = {key: key});\n\n            refresh(lruEntry);\n          }\n\n          if (!(key in data)) size++;\n          data[key] = value;\n\n          if (size > capacity) {\n            this.remove(staleEnd.key);\n          }\n\n          return value;\n        },\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#get\n         * @kind function\n         *\n         * @description\n         * Retrieves named data stored in the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the data to be retrieved\n         * @returns {*} the value stored.\n         */\n        get: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            refresh(lruEntry);\n          }\n\n          return data[key];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#remove\n         * @kind function\n         *\n         * @description\n         * Removes an entry from the {@link $cacheFactory.Cache Cache} object.\n         *\n         * @param {string} key the key of the entry to be removed\n         */\n        remove: function(key) {\n          if (capacity < Number.MAX_VALUE) {\n            var lruEntry = lruHash[key];\n\n            if (!lruEntry) return;\n\n            if (lruEntry === freshEnd) freshEnd = lruEntry.p;\n            if (lruEntry === staleEnd) staleEnd = lruEntry.n;\n            link(lruEntry.n,lruEntry.p);\n\n            delete lruHash[key];\n          }\n\n          if (!(key in data)) return;\n\n          delete data[key];\n          size--;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#removeAll\n         * @kind function\n         *\n         * @description\n         * Clears the cache object of any entries.\n         */\n        removeAll: function() {\n          data = createMap();\n          size = 0;\n          lruHash = createMap();\n          freshEnd = staleEnd = null;\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#destroy\n         * @kind function\n         *\n         * @description\n         * Destroys the {@link $cacheFactory.Cache Cache} object entirely,\n         * removing it from the {@link $cacheFactory $cacheFactory} set.\n         */\n        destroy: function() {\n          data = null;\n          stats = null;\n          lruHash = null;\n          delete caches[cacheId];\n        },\n\n\n        /**\n         * @ngdoc method\n         * @name $cacheFactory.Cache#info\n         * @kind function\n         *\n         * @description\n         * Retrieve information regarding a particular {@link $cacheFactory.Cache Cache}.\n         *\n         * @returns {object} an object with the following properties:\n         *   <ul>\n         *     <li>**id**: the id of the cache instance</li>\n         *     <li>**size**: the number of entries kept in the cache instance</li>\n         *     <li>**...**: any additional properties from the options object when creating the\n         *       cache.</li>\n         *   </ul>\n         */\n        info: function() {\n          return extend({}, stats, {size: size});\n        }\n      });\n\n\n      /**\n       * makes the `entry` the freshEnd of the LRU linked list\n       */\n      function refresh(entry) {\n        if (entry !== freshEnd) {\n          if (!staleEnd) {\n            staleEnd = entry;\n          } else if (staleEnd === entry) {\n            staleEnd = entry.n;\n          }\n\n          link(entry.n, entry.p);\n          link(entry, freshEnd);\n          freshEnd = entry;\n          freshEnd.n = null;\n        }\n      }\n\n\n      /**\n       * bidirectionally links two entries of the LRU linked list\n       */\n      function link(nextEntry, prevEntry) {\n        if (nextEntry !== prevEntry) {\n          if (nextEntry) nextEntry.p = prevEntry; //p stands for previous, 'prev' didn't minify\n          if (prevEntry) prevEntry.n = nextEntry; //n stands for next, 'next' didn't minify\n        }\n      }\n    }\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#info\n   *\n   * @description\n   * Get information about all the caches that have been created\n   *\n   * @returns {Object} - key-value map of `cacheId` to the result of calling `cache#info`\n   */\n    cacheFactory.info = function() {\n      var info = {};\n      forEach(caches, function(cache, cacheId) {\n        info[cacheId] = cache.info();\n      });\n      return info;\n    };\n\n\n  /**\n   * @ngdoc method\n   * @name $cacheFactory#get\n   *\n   * @description\n   * Get access to a cache object by the `cacheId` used when it was created.\n   *\n   * @param {string} cacheId Name or id of a cache to access.\n   * @returns {object} Cache object identified by the cacheId or undefined if no such cache.\n   */\n    cacheFactory.get = function(cacheId) {\n      return caches[cacheId];\n    };\n\n\n    return cacheFactory;\n  };\n}\n\n/**\n * @ngdoc service\n * @name $templateCache\n * @this\n *\n * @description\n * `$templateCache` is a {@link $cacheFactory.Cache Cache object} created by the\n * {@link ng.$cacheFactory $cacheFactory}.\n *\n * The first time a template is used, it is loaded in the template cache for quick retrieval. You\n * can load templates directly into the cache in a `script` tag, by using {@link $templateRequest},\n * or by consuming the `$templateCache` service directly.\n *\n * Adding via the `script` tag:\n *\n * ```html\n *   <script type=\"text/ng-template\" id=\"templateId.html\">\n *     <p>This is the content of the template</p>\n *   </script>\n * ```\n *\n * **Note:** the `script` tag containing the template does not need to be included in the `head` of\n * the document, but it must be a descendent of the {@link ng.$rootElement $rootElement} (e.g.\n * element with {@link ngApp} attribute), otherwise the template will be ignored.\n *\n * Adding via the `$templateCache` service:\n *\n * ```js\n * var myApp = angular.module('myApp', []);\n * myApp.run(function($templateCache) {\n *   $templateCache.put('templateId.html', 'This is the content of the template');\n * });\n * ```\n *\n * To retrieve the template later, simply use it in your component:\n * ```js\n * myApp.component('myComponent', {\n *    templateUrl: 'templateId.html'\n * });\n * ```\n *\n * or get it via the `$templateCache` service:\n * ```js\n * $templateCache.get('templateId.html')\n * ```\n *\n */\nfunction $TemplateCacheProvider() {\n  this.$get = ['$cacheFactory', function($cacheFactory) {\n    return $cacheFactory('templates');\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables like document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* ! VARIABLE/FUNCTION NAMING CONVENTIONS THAT APPLY TO THIS FILE!\n *\n * DOM-related variables:\n *\n * - \"node\" - DOM Node\n * - \"element\" - DOM Element or Node\n * - \"$node\" or \"$element\" - jqLite-wrapped node or element\n *\n *\n * Compiler related stuff:\n *\n * - \"linkFn\" - linking fn of a single directive\n * - \"nodeLinkFn\" - function that aggregates all linking fns for a particular node\n * - \"childLinkFn\" -  function that aggregates all linking fns for child nodes of a particular node\n * - \"compositeLinkFn\" - function that aggregates all linking fns for a compilation root (nodeList)\n */\n\n\n/**\n * @ngdoc service\n * @name $compile\n * @kind function\n *\n * @description\n * Compiles an HTML string or DOM into a template and produces a template function, which\n * can then be used to link {@link ng.$rootScope.Scope `scope`} and the template together.\n *\n * The compilation is a process of walking the DOM tree and matching DOM elements to\n * {@link ng.$compileProvider#directive directives}.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** This document is an in-depth reference of all directive options.\n * For a gentle introduction to directives with examples of common use cases,\n * see the {@link guide/directive directive guide}.\n * </div>\n *\n * ## Comprehensive Directive API\n *\n * There are many different options for a directive.\n *\n * The difference resides in the return value of the factory function.\n * You can either return a {@link $compile#directive-definition-object Directive Definition Object (see below)}\n * that defines the directive properties, or just the `postLink` function (all other properties will have\n * the default values).\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's recommended to use the \"directive definition object\" form.\n * </div>\n *\n * Here's an example directive declared with a Directive Definition Object:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       {@link $compile#-priority- priority}: 0,\n *       {@link $compile#-template- template}: '<div></div>', // or // function(tElement, tAttrs) { ... },\n *       // or\n *       // {@link $compile#-templateurl- templateUrl}: 'directive.html', // or // function(tElement, tAttrs) { ... },\n *       {@link $compile#-transclude- transclude}: false,\n *       {@link $compile#-restrict- restrict}: 'A',\n *       {@link $compile#-templatenamespace- templateNamespace}: 'html',\n *       {@link $compile#-scope- scope}: false,\n *       {@link $compile#-controller- controller}: function($scope, $element, $attrs, $transclude, otherInjectables) { ... },\n *       {@link $compile#-controlleras- controllerAs}: 'stringIdentifier',\n *       {@link $compile#-bindtocontroller- bindToController}: false,\n *       {@link $compile#-require- require}: 'siblingDirectiveName', // or // ['^parentDirectiveName', '?optionalDirectiveName', '?^optionalParent'],\n *       {@link $compile#-multielement- multiElement}: false,\n *       {@link $compile#-compile- compile}: function compile(tElement, tAttrs, transclude) {\n *         return {\n *            {@link $compile#pre-linking-function pre}: function preLink(scope, iElement, iAttrs, controller) { ... },\n *            {@link $compile#post-linking-function post}: function postLink(scope, iElement, iAttrs, controller) { ... }\n *         }\n *         // or\n *         // return function postLink( ... ) { ... }\n *       },\n *       // or\n *       // {@link $compile#-link- link}: {\n *       //  {@link $compile#pre-linking-function pre}: function preLink(scope, iElement, iAttrs, controller) { ... },\n *       //  {@link $compile#post-linking-function post}: function postLink(scope, iElement, iAttrs, controller) { ... }\n *       // }\n *       // or\n *       // {@link $compile#-link- link}: function postLink( ... ) { ... }\n *     };\n *     return directiveDefinitionObject;\n *   });\n * ```\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Any unspecified options will use the default value. You can see the default values below.\n * </div>\n *\n * Therefore the above can be simplified as:\n *\n * ```js\n *   var myModule = angular.module(...);\n *\n *   myModule.directive('directiveName', function factory(injectables) {\n *     var directiveDefinitionObject = {\n *       link: function postLink(scope, iElement, iAttrs) { ... }\n *     };\n *     return directiveDefinitionObject;\n *     // or\n *     // return function postLink(scope, iElement, iAttrs) { ... }\n *   });\n * ```\n *\n * ### Life-cycle hooks\n * Directive controllers can provide the following methods that are called by AngularJS at points in the life-cycle of the\n * directive:\n * * `$onInit()` - Called on each controller after all the controllers on an element have been constructed and\n *   had their bindings initialized (and before the pre &amp; post linking functions for the directives on\n *   this element). This is a good place to put initialization code for your controller.\n * * `$onChanges(changesObj)` - Called whenever one-way (`<`) or interpolation (`@`) bindings are updated. The\n *   `changesObj` is a hash whose keys are the names of the bound properties that have changed, and the values are an\n *   object of the form `{ currentValue, previousValue, isFirstChange() }`. Use this hook to trigger updates within a\n *   component such as cloning the bound value to prevent accidental mutation of the outer value. Note that this will\n *   also be called when your bindings are initialized.\n * * `$doCheck()` - Called on each turn of the digest cycle. Provides an opportunity to detect and act on\n *   changes. Any actions that you wish to take in response to the changes that you detect must be\n *   invoked from this hook; implementing this has no effect on when `$onChanges` is called. For example, this hook\n *   could be useful if you wish to perform a deep equality check, or to check a Date object, changes to which would not\n *   be detected by AngularJS's change detector and thus not trigger `$onChanges`. This hook is invoked with no arguments;\n *   if detecting changes, you must store the previous value(s) for comparison to the current values.\n * * `$onDestroy()` - Called on a controller when its containing scope is destroyed. Use this hook for releasing\n *   external resources, watches and event handlers. Note that components have their `$onDestroy()` hooks called in\n *   the same order as the `$scope.$broadcast` events are triggered, which is top down. This means that parent\n *   components will have their `$onDestroy()` hook called before child components.\n * * `$postLink()` - Called after this controller's element and its children have been linked. Similar to the post-link\n *   function this hook can be used to set up DOM event handlers and do direct DOM manipulation.\n *   Note that child elements that contain `templateUrl` directives will not have been compiled and linked since\n *   they are waiting for their template to load asynchronously and their own compilation and linking has been\n *   suspended until that occurs.\n *\n * #### Comparison with life-cycle hooks in the new Angular\n * The new Angular also uses life-cycle hooks for its components. While the AngularJS life-cycle hooks are similar there are\n * some differences that you should be aware of, especially when it comes to moving your code from AngularJS to Angular:\n *\n * * AngularJS hooks are prefixed with `$`, such as `$onInit`. Angular hooks are prefixed with `ng`, such as `ngOnInit`.\n * * AngularJS hooks can be defined on the controller prototype or added to the controller inside its constructor.\n *   In Angular you can only define hooks on the prototype of the Component class.\n * * Due to the differences in change-detection, you may get many more calls to `$doCheck` in AngularJS than you would to\n *   `ngDoCheck` in Angular.\n * * Changes to the model inside `$doCheck` will trigger new turns of the digest loop, which will cause the changes to be\n *   propagated throughout the application.\n *   Angular does not allow the `ngDoCheck` hook to trigger a change outside of the component. It will either throw an\n *   error or do nothing depending upon the state of `enableProdMode()`.\n *\n * #### Life-cycle hook examples\n *\n * This example shows how you can check for mutations to a Date object even though the identity of the object\n * has not changed.\n *\n * <example name=\"doCheckDateExample\" module=\"do-check-module\">\n *   <file name=\"app.js\">\n *     angular.module('do-check-module', [])\n *       .component('app', {\n *         template:\n *           'Month: <input ng-model=\"$ctrl.month\" ng-change=\"$ctrl.updateDate()\">' +\n *           'Date: {{ $ctrl.date }}' +\n *           '<test date=\"$ctrl.date\"></test>',\n *         controller: function() {\n *           this.date = new Date();\n *           this.month = this.date.getMonth();\n *           this.updateDate = function() {\n *             this.date.setMonth(this.month);\n *           };\n *         }\n *       })\n *       .component('test', {\n *         bindings: { date: '<' },\n *         template:\n *           '<pre>{{ $ctrl.log | json }}</pre>',\n *         controller: function() {\n *           var previousValue;\n *           this.log = [];\n *           this.$doCheck = function() {\n *             var currentValue = this.date && this.date.valueOf();\n *             if (previousValue !== currentValue) {\n *               this.log.push('doCheck: date mutated: ' + this.date);\n *               previousValue = currentValue;\n *             }\n *           };\n *         }\n *       });\n *   </file>\n *   <file name=\"index.html\">\n *     <app></app>\n *   </file>\n * </example>\n *\n * This example show how you might use `$doCheck` to trigger changes in your component's inputs even if the\n * actual identity of the component doesn't change. (Be aware that cloning and deep equality checks on large\n * arrays or objects can have a negative impact on your application performance.)\n *\n * <example name=\"doCheckArrayExample\" module=\"do-check-module\">\n *   <file name=\"index.html\">\n *     <div ng-init=\"items = []\">\n *       <button ng-click=\"items.push(items.length)\">Add Item</button>\n *       <button ng-click=\"items = []\">Reset Items</button>\n *       <pre>{{ items }}</pre>\n *       <test items=\"items\"></test>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *      angular.module('do-check-module', [])\n *        .component('test', {\n *          bindings: { items: '<' },\n *          template:\n *            '<pre>{{ $ctrl.log | json }}</pre>',\n *          controller: function() {\n *            this.log = [];\n *\n *            this.$doCheck = function() {\n *              if (this.items_ref !== this.items) {\n *                this.log.push('doCheck: items changed');\n *                this.items_ref = this.items;\n *              }\n *              if (!angular.equals(this.items_clone, this.items)) {\n *                this.log.push('doCheck: items mutated');\n *                this.items_clone = angular.copy(this.items);\n *              }\n *            };\n *          }\n *        });\n *   </file>\n * </example>\n *\n *\n * ### Directive Definition Object\n *\n * The directive definition object provides instructions to the {@link ng.$compile\n * compiler}. The attributes are:\n *\n * #### `multiElement`\n * When this property is set to true (default is `false`), the HTML compiler will collect DOM nodes between\n * nodes with the attributes `directive-name-start` and `directive-name-end`, and group them\n * together as the directive elements. It is recommended that this feature be used on directives\n * which are not strictly behavioral (such as {@link ngClick}), and which\n * do not manipulate or replace child nodes (such as {@link ngInclude}).\n *\n * #### `priority`\n * When there are multiple directives defined on a single DOM element, sometimes it\n * is necessary to specify the order in which the directives are applied. The `priority` is used\n * to sort the directives before their `compile` functions get called. Priority is defined as a\n * number. Directives with greater numerical `priority` are compiled first. Pre-link functions\n * are also run in priority order, but post-link functions are run in reverse order. The order\n * of directives with the same priority is undefined. The default priority is `0`.\n *\n * #### `terminal`\n * If set to true then the current `priority` will be the last set of directives\n * which will execute (any directives at the current priority will still execute\n * as the order of execution on same `priority` is undefined). Note that expressions\n * and other directives used in the directive's template will also be excluded from execution.\n *\n * #### `scope`\n * The scope property can be `false`, `true`, or an object:\n *\n * * **`false` (default):** No scope will be created for the directive. The directive will use its\n * parent's scope.\n *\n * * **`true`:** A new child scope that prototypically inherits from its parent will be created for\n * the directive's element. If multiple directives on the same element request a new scope,\n * only one new scope is created.\n *\n * * **`{...}` (an object hash):** A new \"isolate\" scope is created for the directive's template.\n * The 'isolate' scope differs from normal scope in that it does not prototypically\n * inherit from its parent scope. This is useful when creating reusable components, which should not\n * accidentally read or modify data in the parent scope. Note that an isolate scope\n * directive without a `template` or `templateUrl` will not apply the isolate scope\n * to its children elements.\n *\n * The 'isolate' scope object hash defines a set of local scope properties derived from attributes on the\n * directive's element. These local properties are useful for aliasing values for templates. The keys in\n * the object hash map to the name of the property on the isolate scope; the values define how the property\n * is bound to the parent scope, via matching attributes on the directive's element:\n *\n * * `@` or `@attr` - bind a local scope property to the value of DOM attribute. The result is\n *   always a string since DOM attributes are strings. If no `attr` name is specified then the\n *   attribute name is assumed to be the same as the local name. Given `<my-component\n *   my-attr=\"hello {{name}}\">` and the isolate scope definition `scope: { localName:'@myAttr' }`,\n *   the directive's scope property `localName` will reflect the interpolated value of `hello\n *   {{name}}`. As the `name` attribute changes so will the `localName` property on the directive's\n *   scope. The `name` is read from the parent scope (not the directive's scope).\n *\n * * `=` or `=attr` - set up a bidirectional binding between a local scope property and an expression\n *   passed via the attribute `attr`. The expression is evaluated in the context of the parent scope.\n *   If no `attr` name is specified then the attribute name is assumed to be the same as the local\n *   name. Given `<my-component my-attr=\"parentModel\">` and the isolate scope definition `scope: {\n *   localModel: '=myAttr' }`, the property `localModel` on the directive's scope will reflect the\n *   value of `parentModel` on the parent scope. Changes to `parentModel` will be reflected in\n *   `localModel` and vice versa. If the binding expression is non-assignable, or if the attribute\n *   isn't  optional and doesn't exist, an exception\n *   ({@link error/$compile/nonassign `$compile:nonassign`}) will be thrown upon discovering changes\n *   to the local value, since it will be impossible to sync them back to the parent scope.\n *\n *   By default, the {@link ng.$rootScope.Scope#$watch `$watch`}\n *   method is used for tracking changes, and the equality check is based on object identity.\n *   However, if an object literal or an array literal is passed as the binding expression, the\n *   equality check is done by value (using the {@link angular.equals} function). It's also possible\n *   to watch the evaluated value shallowly with {@link ng.$rootScope.Scope#$watchCollection\n *   `$watchCollection`}: use `=*` or `=*attr`\n *\n  * * `<` or `<attr` - set up a one-way (one-directional) binding between a local scope property and an\n *   expression passed via the attribute `attr`. The expression is evaluated in the context of the\n *   parent scope. If no `attr` name is specified then the attribute name is assumed to be the same as the\n *   local name.\n *\n *   For example, given `<my-component my-attr=\"parentModel\">` and directive definition of\n *   `scope: { localModel:'<myAttr' }`, then the isolated scope property `localModel` will reflect the\n *   value of `parentModel` on the parent scope. Any changes to `parentModel` will be reflected\n *   in `localModel`, but changes in `localModel` will not reflect in `parentModel`. There are however\n *   two caveats:\n *     1. one-way binding does not copy the value from the parent to the isolate scope, it simply\n *     sets the same value. That means if your bound value is an object, changes to its properties\n *     in the isolated scope will be reflected in the parent scope (because both reference the same object).\n *     2. one-way binding watches changes to the **identity** of the parent value. That means the\n *     {@link ng.$rootScope.Scope#$watch `$watch`} on the parent value only fires if the reference\n *     to the value has changed. In most cases, this should not be of concern, but can be important\n *     to know if you one-way bind to an object, and then replace that object in the isolated scope.\n *     If you now change a property of the object in your parent scope, the change will not be\n *     propagated to the isolated scope, because the identity of the object on the parent scope\n *     has not changed. Instead you must assign a new object.\n *\n *   One-way binding is useful if you do not plan to propagate changes to your isolated scope bindings\n *   back to the parent. However, it does not make this completely impossible.\n *\n *   By default, the {@link ng.$rootScope.Scope#$watch `$watch`}\n *   method is used for tracking changes, and the equality check is based on object identity.\n *   It's also possible to watch the evaluated value shallowly with\n *   {@link ng.$rootScope.Scope#$watchCollection `$watchCollection`}: use `<*` or `<*attr`\n *\n * * `&` or `&attr` - provides a way to execute an expression in the context of the parent scope. If\n *   no `attr` name is specified then the attribute name is assumed to be the same as the local name.\n *   Given `<my-component my-attr=\"count = count + value\">` and the isolate scope definition `scope: {\n *   localFn:'&myAttr' }`, the isolate scope property `localFn` will point to a function wrapper for\n *   the `count = count + value` expression. Often it's desirable to pass data from the isolated scope\n *   via an expression to the parent scope. This can be done by passing a map of local variable names\n *   and values into the expression wrapper fn. For example, if the expression is `increment(amount)`\n *   then we can specify the amount value by calling the `localFn` as `localFn({amount: 22})`.\n *\n * All 4 kinds of bindings (`@`, `=`, `<`, and `&`) can be made optional by adding `?` to the expression.\n * The marker must come after the mode and before the attribute name.\n * See the {@link error/$compile/iscp Invalid Isolate Scope Definition error} for definition examples.\n * This is useful to refine the interface directives provide.\n * One subtle difference between optional and non-optional happens **when the binding attribute is not\n * set**:\n * - the binding is optional: the property will not be defined\n * - the binding is not optional: the property is defined\n *\n * ```js\n *app.directive('testDir', function() {\n    return {\n      scope: {\n        notoptional: '=',\n        optional: '=?',\n      },\n      bindToController: true,\n      controller: function() {\n        this.$onInit = function() {\n          console.log(this.hasOwnProperty('notoptional')) // true\n          console.log(this.hasOwnProperty('optional')) // false\n        }\n      }\n    }\n  })\n *```\n *\n *\n * ##### Combining directives with different scope defintions\n *\n * In general it's possible to apply more than one directive to one element, but there might be limitations\n * depending on the type of scope required by the directives. The following points will help explain these limitations.\n * For simplicity only two directives are taken into account, but it is also applicable for several directives:\n *\n * * **no scope** + **no scope** => Two directives which don't require their own scope will use their parent's scope\n * * **child scope** + **no scope** =>  Both directives will share one single child scope\n * * **child scope** + **child scope** =>  Both directives will share one single child scope\n * * **isolated scope** + **no scope** =>  The isolated directive will use it's own created isolated scope. The other directive will use\n * its parent's scope\n * * **isolated scope** + **child scope** =>  **Won't work!** Only one scope can be related to one element. Therefore these directives cannot\n * be applied to the same element.\n * * **isolated scope** + **isolated scope**  =>  **Won't work!** Only one scope can be related to one element. Therefore these directives\n * cannot be applied to the same element.\n *\n *\n * #### `bindToController`\n * This property is used to bind scope properties directly to the controller. It can be either\n * `true` or an object hash with the same format as the `scope` property.\n *\n * When an isolate scope is used for a directive (see above), `bindToController: true` will\n * allow a component to have its properties bound to the controller, rather than to scope.\n *\n * After the controller is instantiated, the initial values of the isolate scope bindings will be bound to the controller\n * properties. You can access these bindings once they have been initialized by providing a controller method called\n * `$onInit`, which is called after all the controllers on an element have been constructed and had their bindings\n * initialized.\n *\n * It is also possible to set `bindToController` to an object hash with the same format as the `scope` property.\n * This will set up the scope bindings to the controller directly. Note that `scope` can still be used\n * to define which kind of scope is created. By default, no scope is created. Use `scope: {}` to create an isolate\n * scope (useful for component directives).\n *\n * If both `bindToController` and `scope` are defined and have object hashes, `bindToController` overrides `scope`.\n *\n *\n * #### `controller`\n * Controller constructor function. The controller is instantiated before the\n * pre-linking phase and can be accessed by other directives (see\n * `require` attribute). This allows the directives to communicate with each other and augment\n * each other's behavior. The controller is injectable (and supports bracket notation) with the following locals:\n *\n * * `$scope` - Current scope associated with the element\n * * `$element` - Current element\n * * `$attrs` - Current attributes object for the element\n * * `$transclude` - A transclude linking function pre-bound to the correct transclusion scope:\n *   `function([scope], cloneLinkingFn, futureParentElement, slotName)`:\n *    * `scope`: (optional) override the scope.\n *    * `cloneLinkingFn`: (optional) argument to create clones of the original transcluded content.\n *    * `futureParentElement` (optional):\n *        * defines the parent to which the `cloneLinkingFn` will add the cloned elements.\n *        * default: `$element.parent()` resp. `$element` for `transclude:'element'` resp. `transclude:true`.\n *        * only needed for transcludes that are allowed to contain non html elements (e.g. SVG elements)\n *          and when the `cloneLinkingFn` is passed,\n *          as those elements need to created and cloned in a special way when they are defined outside their\n *          usual containers (e.g. like `<svg>`).\n *        * See also the `directive.templateNamespace` property.\n *    * `slotName`: (optional) the name of the slot to transclude. If falsy (e.g. `null`, `undefined` or `''`)\n *      then the default transclusion is provided.\n *    The `$transclude` function also has a method on it, `$transclude.isSlotFilled(slotName)`, which returns\n *    `true` if the specified slot contains content (i.e. one or more DOM nodes).\n *\n * #### `require`\n * Require another directive and inject its controller as the fourth argument to the linking function. The\n * `require` property can be a string, an array or an object:\n * * a **string** containing the name of the directive to pass to the linking function\n * * an **array** containing the names of directives to pass to the linking function. The argument passed to the\n * linking function will be an array of controllers in the same order as the names in the `require` property\n * * an **object** whose property values are the names of the directives to pass to the linking function. The argument\n * passed to the linking function will also be an object with matching keys, whose values will hold the corresponding\n * controllers.\n *\n * If the `require` property is an object and `bindToController` is truthy, then the required controllers are\n * bound to the controller using the keys of the `require` property. This binding occurs after all the controllers\n * have been constructed but before `$onInit` is called.\n * If the name of the required controller is the same as the local name (the key), the name can be\n * omitted. For example, `{parentDir: '^^'}` is equivalent to `{parentDir: '^^parentDir'}`.\n * See the {@link $compileProvider#component} helper for an example of how this can be used.\n * If no such required directive(s) can be found, or if the directive does not have a controller, then an error is\n * raised (unless no link function is specified and the required controllers are not being bound to the directive\n * controller, in which case error checking is skipped). The name can be prefixed with:\n *\n * * (no prefix) - Locate the required controller on the current element. Throw an error if not found.\n * * `?` - Attempt to locate the required controller or pass `null` to the `link` fn if not found.\n * * `^` - Locate the required controller by searching the element and its parents. Throw an error if not found.\n * * `^^` - Locate the required controller by searching the element's parents. Throw an error if not found.\n * * `?^` - Attempt to locate the required controller by searching the element and its parents or pass\n *   `null` to the `link` fn if not found.\n * * `?^^` - Attempt to locate the required controller by searching the element's parents, or pass\n *   `null` to the `link` fn if not found.\n *\n *\n * #### `controllerAs`\n * Identifier name for a reference to the controller in the directive's scope.\n * This allows the controller to be referenced from the directive template. This is especially\n * useful when a directive is used as component, i.e. with an `isolate` scope. It's also possible\n * to use it in a directive without an `isolate` / `new` scope, but you need to be aware that the\n * `controllerAs` reference might overwrite a property that already exists on the parent scope.\n *\n *\n * #### `restrict`\n * String of subset of `EACM` which restricts the directive to a specific directive\n * declaration style. If omitted, the defaults (elements and attributes) are used.\n *\n * * `E` - Element name (default): `<my-directive></my-directive>`\n * * `A` - Attribute (default): `<div my-directive=\"exp\"></div>`\n * * `C` - Class: `<div class=\"my-directive: exp;\"></div>`\n * * `M` - Comment: `<!-- directive: my-directive exp -->`\n *\n *\n * #### `templateNamespace`\n * String representing the document type used by the markup in the template.\n * AngularJS needs this information as those elements need to be created and cloned\n * in a special way when they are defined outside their usual containers like `<svg>` and `<math>`.\n *\n * * `html` - All root nodes in the template are HTML. Root nodes may also be\n *   top-level elements such as `<svg>` or `<math>`.\n * * `svg` - The root nodes in the template are SVG elements (excluding `<math>`).\n * * `math` - The root nodes in the template are MathML elements (excluding `<svg>`).\n *\n * If no `templateNamespace` is specified, then the namespace is considered to be `html`.\n *\n * #### `template`\n * HTML markup that may:\n * * Replace the contents of the directive's element (default).\n * * Replace the directive's element itself (if `replace` is true - DEPRECATED).\n * * Wrap the contents of the directive's element (if `transclude` is true).\n *\n * Value may be:\n *\n * * A string. For example `<div red-on-hover>{{delete_str}}</div>`.\n * * A function which takes two arguments `tElement` and `tAttrs` (described in the `compile`\n *   function api below) and returns a string value.\n *\n *\n * #### `templateUrl`\n * This is similar to `template` but the template is loaded from the specified URL, asynchronously.\n *\n * Because template loading is asynchronous the compiler will suspend compilation of directives on that element\n * for later when the template has been resolved.  In the meantime it will continue to compile and link\n * sibling and parent elements as though this element had not contained any directives.\n *\n * The compiler does not suspend the entire compilation to wait for templates to be loaded because this\n * would result in the whole app \"stalling\" until all templates are loaded asynchronously - even in the\n * case when only one deeply nested directive has `templateUrl`.\n *\n * Template loading is asynchronous even if the template has been preloaded into the {@link $templateCache}.\n *\n * You can specify `templateUrl` as a string representing the URL or as a function which takes two\n * arguments `tElement` and `tAttrs` (described in the `compile` function api below) and returns\n * a string value representing the url.  In either case, the template URL is passed through {@link\n * $sce#getTrustedResourceUrl $sce.getTrustedResourceUrl}.\n *\n *\n * #### `replace`\n * <div class=\"alert alert-danger\">\n * **Note:** `replace` is deprecated in AngularJS and has been removed in the new Angular (v2+).\n * </div>\n *\n * Specifies what the template should replace. Defaults to `false`.\n *\n * * `true` - the template will replace the directive's element.\n * * `false` - the template will replace the contents of the directive's element.\n *\n * The replacement process migrates all of the attributes / classes from the old element to the new\n * one. See the {@link guide/directive#template-expanding-directive\n * Directives Guide} for an example.\n *\n * There are very few scenarios where element replacement is required for the application function,\n * the main one being reusable custom components that are used within SVG contexts\n * (because SVG doesn't work with custom elements in the DOM tree).\n *\n * #### `transclude`\n * Extract the contents of the element where the directive appears and make it available to the directive.\n * The contents are compiled and provided to the directive as a **transclusion function**. See the\n * {@link $compile#transclusion Transclusion} section below.\n *\n *\n * #### `compile`\n *\n * ```js\n *   function compile(tElement, tAttrs, transclude) { ... }\n * ```\n *\n * The compile function deals with transforming the template DOM. Since most directives do not do\n * template transformation, it is not used often. The compile function takes the following arguments:\n *\n *   * `tElement` - template element - The element where the directive has been declared. It is\n *     safe to do template transformation on the element and child elements only.\n *\n *   * `tAttrs` - template attributes - Normalized list of attributes declared on this element shared\n *     between all directive compile functions.\n *\n *   * `transclude` -  [*DEPRECATED*!] A transclude linking function: `function(scope, cloneLinkingFn)`\n *\n * <div class=\"alert alert-warning\">\n * **Note:** The template instance and the link instance may be different objects if the template has\n * been cloned. For this reason it is **not** safe to do anything other than DOM transformations that\n * apply to all cloned DOM nodes within the compile function. Specifically, DOM listener registration\n * should be done in a linking function rather than in a compile function.\n * </div>\n\n * <div class=\"alert alert-warning\">\n * **Note:** The compile function cannot handle directives that recursively use themselves in their\n * own templates or compile functions. Compiling these directives results in an infinite loop and\n * stack overflow errors.\n *\n * This can be avoided by manually using `$compile` in the postLink function to imperatively compile\n * a directive's template instead of relying on automatic template compilation via `template` or\n * `templateUrl` declaration or manual compilation inside the compile function.\n * </div>\n *\n * <div class=\"alert alert-danger\">\n * **Note:** The `transclude` function that is passed to the compile function is deprecated, as it\n *   e.g. does not know about the right outer scope. Please use the transclude function that is passed\n *   to the link function instead.\n * </div>\n\n * A compile function can have a return value which can be either a function or an object.\n *\n * * returning a (post-link) function - is equivalent to registering the linking function via the\n *   `link` property of the config object when the compile function is empty.\n *\n * * returning an object with function(s) registered via `pre` and `post` properties - allows you to\n *   control when a linking function should be called during the linking phase. See info about\n *   pre-linking and post-linking functions below.\n *\n *\n * #### `link`\n * This property is used only if the `compile` property is not defined.\n *\n * ```js\n *   function link(scope, iElement, iAttrs, controller, transcludeFn) { ... }\n * ```\n *\n * The link function is responsible for registering DOM listeners as well as updating the DOM. It is\n * executed after the template has been cloned. This is where most of the directive logic will be\n * put.\n *\n *   * `scope` - {@link ng.$rootScope.Scope Scope} - The scope to be used by the\n *     directive for registering {@link ng.$rootScope.Scope#$watch watches}.\n *\n *   * `iElement` - instance element - The element where the directive is to be used. It is safe to\n *     manipulate the children of the element only in `postLink` function since the children have\n *     already been linked.\n *\n *   * `iAttrs` - instance attributes - Normalized list of attributes declared on this element shared\n *     between all directive linking functions.\n *\n *   * `controller` - the directive's required controller instance(s) - Instances are shared\n *     among all directives, which allows the directives to use the controllers as a communication\n *     channel. The exact value depends on the directive's `require` property:\n *       * no controller(s) required: the directive's own controller, or `undefined` if it doesn't have one\n *       * `string`: the controller instance\n *       * `array`: array of controller instances\n *\n *     If a required controller cannot be found, and it is optional, the instance is `null`,\n *     otherwise the {@link error:$compile:ctreq Missing Required Controller} error is thrown.\n *\n *     Note that you can also require the directive's own controller - it will be made available like\n *     any other controller.\n *\n *   * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope.\n *     This is the same as the `$transclude` parameter of directive controllers,\n *     see {@link ng.$compile#-controller- the controller section for details}.\n *     `function([scope], cloneLinkingFn, futureParentElement)`.\n *\n * #### Pre-linking function\n *\n * Executed before the child elements are linked. Not safe to do DOM transformation since the\n * compiler linking function will fail to locate the correct elements for linking.\n *\n * #### Post-linking function\n *\n * Executed after the child elements are linked.\n *\n * Note that child elements that contain `templateUrl` directives will not have been compiled\n * and linked since they are waiting for their template to load asynchronously and their own\n * compilation and linking has been suspended until that occurs.\n *\n * It is safe to do DOM transformation in the post-linking function on elements that are not waiting\n * for their async templates to be resolved.\n *\n *\n * ### Transclusion\n *\n * Transclusion is the process of extracting a collection of DOM elements from one part of the DOM and\n * copying them to another part of the DOM, while maintaining their connection to the original AngularJS\n * scope from where they were taken.\n *\n * Transclusion is used (often with {@link ngTransclude}) to insert the\n * original contents of a directive's element into a specified place in the template of the directive.\n * The benefit of transclusion, over simply moving the DOM elements manually, is that the transcluded\n * content has access to the properties on the scope from which it was taken, even if the directive\n * has isolated scope.\n * See the {@link guide/directive#creating-a-directive-that-wraps-other-elements Directives Guide}.\n *\n * This makes it possible for the widget to have private state for its template, while the transcluded\n * content has access to its originating scope.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** When testing an element transclude directive you must not place the directive at the root of the\n * DOM fragment that is being compiled. See {@link guide/unit-testing#testing-transclusion-directives\n * Testing Transclusion Directives}.\n * </div>\n *\n * There are three kinds of transclusion depending upon whether you want to transclude just the contents of the\n * directive's element, the entire element or multiple parts of the element contents:\n *\n * * `true` - transclude the content (i.e. the child nodes) of the directive's element.\n * * `'element'` - transclude the whole of the directive's element including any directives on this\n *   element that are defined at a lower priority than this directive. When used, the `template`\n *   property is ignored.\n * * **`{...}` (an object hash):** - map elements of the content onto transclusion \"slots\" in the template.\n *\n * **Multi-slot transclusion** is declared by providing an object for the `transclude` property.\n *\n * This object is a map where the keys are the name of the slot to fill and the value is an element selector\n * used to match the HTML to the slot. The element selector should be in normalized form (e.g. `myElement`)\n * and will match the standard element variants (e.g. `my-element`, `my:element`, `data-my-element`, etc).\n *\n * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}.\n *\n * If the element selector is prefixed with a `?` then that slot is optional.\n *\n * For example, the transclude object `{ slotA: '?myCustomElement' }` maps `<my-custom-element>` elements to\n * the `slotA` slot, which can be accessed via the `$transclude` function or via the {@link ngTransclude} directive.\n *\n * Slots that are not marked as optional (`?`) will trigger a compile time error if there are no matching elements\n * in the transclude content. If you wish to know if an optional slot was filled with content, then you can call\n * `$transclude.isSlotFilled(slotName)` on the transclude function passed to the directive's link function and\n * injectable into the directive's controller.\n *\n *\n * #### Transclusion Functions\n *\n * When a directive requests transclusion, the compiler extracts its contents and provides a **transclusion\n * function** to the directive's `link` function and `controller`. This transclusion function is a special\n * **linking function** that will return the compiled contents linked to a new transclusion scope.\n *\n * <div class=\"alert alert-info\">\n * If you are just using {@link ngTransclude} then you don't need to worry about this function, since\n * ngTransclude will deal with it for us.\n * </div>\n *\n * If you want to manually control the insertion and removal of the transcluded content in your directive\n * then you must use this transclude function. When you call a transclude function it returns a jqLite/JQuery\n * object that contains the compiled DOM, which is linked to the correct transclusion scope.\n *\n * When you call a transclusion function you can pass in a **clone attach function**. This function accepts\n * two parameters, `function(clone, scope) { ... }`, where the `clone` is a fresh compiled copy of your transcluded\n * content and the `scope` is the newly created transclusion scope, which the clone will be linked to.\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: Always provide a `cloneFn` (clone attach function) when you call a transclude function\n * since you then get a fresh clone of the original DOM and also have access to the new transclusion scope.\n * </div>\n *\n * It is normal practice to attach your transcluded content (`clone`) to the DOM inside your **clone\n * attach function**:\n *\n * ```js\n * var transcludedContent, transclusionScope;\n *\n * $transclude(function(clone, scope) {\n *   element.append(clone);\n *   transcludedContent = clone;\n *   transclusionScope = scope;\n * });\n * ```\n *\n * Later, if you want to remove the transcluded content from your DOM then you should also destroy the\n * associated transclusion scope:\n *\n * ```js\n * transcludedContent.remove();\n * transclusionScope.$destroy();\n * ```\n *\n * <div class=\"alert alert-info\">\n * **Best Practice**: if you intend to add and remove transcluded content manually in your directive\n * (by calling the transclude function to get the DOM and calling `element.remove()` to remove it),\n * then you are also responsible for calling `$destroy` on the transclusion scope.\n * </div>\n *\n * The built-in DOM manipulation directives, such as {@link ngIf}, {@link ngSwitch} and {@link ngRepeat}\n * automatically destroy their transcluded clones as necessary so you do not need to worry about this if\n * you are simply using {@link ngTransclude} to inject the transclusion into your directive.\n *\n *\n * #### Transclusion Scopes\n *\n * When you call a transclude function it returns a DOM fragment that is pre-bound to a **transclusion\n * scope**. This scope is special, in that it is a child of the directive's scope (and so gets destroyed\n * when the directive's scope gets destroyed) but it inherits the properties of the scope from which it\n * was taken.\n *\n * For example consider a directive that uses transclusion and isolated scope. The DOM hierarchy might look\n * like this:\n *\n * ```html\n * <div ng-app>\n *   <div isolate>\n *     <div transclusion>\n *     </div>\n *   </div>\n * </div>\n * ```\n *\n * The `$parent` scope hierarchy will look like this:\n *\n   ```\n   - $rootScope\n     - isolate\n       - transclusion\n   ```\n *\n * but the scopes will inherit prototypically from different scopes to their `$parent`.\n *\n   ```\n   - $rootScope\n     - transclusion\n   - isolate\n   ```\n *\n *\n * ### Attributes\n *\n * The {@link ng.$compile.directive.Attributes Attributes} object - passed as a parameter in the\n * `link()` or `compile()` functions. It has a variety of uses.\n *\n * * *Accessing normalized attribute names:* Directives like `ngBind` can be expressed in many ways:\n *   `ng:bind`, `data-ng-bind`, or `x-ng-bind`. The attributes object allows for normalized access\n *   to the attributes.\n *\n * * *Directive inter-communication:* All directives share the same instance of the attributes\n *   object which allows the directives to use the attributes object as inter directive\n *   communication.\n *\n * * *Supports interpolation:* Interpolation attributes are assigned to the attribute object\n *   allowing other directives to read the interpolated value.\n *\n * * *Observing interpolated attributes:* Use `$observe` to observe the value changes of attributes\n *   that contain interpolation (e.g. `src=\"{{bar}}\"`). Not only is this very efficient but it's also\n *   the only way to easily get the actual value because during the linking phase the interpolation\n *   hasn't been evaluated yet and so the value is at this time set to `undefined`.\n *\n * ```js\n * function linkingFn(scope, elm, attrs, ctrl) {\n *   // get the attribute value\n *   console.log(attrs.ngModel);\n *\n *   // change the attribute\n *   attrs.$set('ngModel', 'new value');\n *\n *   // observe changes to interpolated attribute\n *   attrs.$observe('ngModel', function(value) {\n *     console.log('ngModel has changed value to ' + value);\n *   });\n * }\n * ```\n *\n * ## Example\n *\n * <div class=\"alert alert-warning\">\n * **Note**: Typically directives are registered with `module.directive`. The example below is\n * to illustrate how `$compile` works.\n * </div>\n *\n <example module=\"compileExample\" name=\"compile\">\n   <file name=\"index.html\">\n    <script>\n      angular.module('compileExample', [], function($compileProvider) {\n        // Configure new 'compile' directive by passing a directive\n        // factory function. The factory function injects '$compile'.\n        $compileProvider.directive('compile', function($compile) {\n          // The directive factory creates a link function.\n          return function(scope, element, attrs) {\n            scope.$watch(\n              function(scope) {\n                // Watch the 'compile' expression for changes.\n                return scope.$eval(attrs.compile);\n              },\n              function(value) {\n                // When the 'compile' expression changes\n                // assign it into the current DOM.\n                element.html(value);\n\n                // Compile the new DOM and link it to the current scope.\n                // NOTE: we only compile '.childNodes' so that we\n                // don't get into an infinite loop compiling ourselves.\n                $compile(element.contents())(scope);\n              }\n            );\n          };\n        });\n      })\n      .controller('GreeterController', ['$scope', function($scope) {\n        $scope.name = 'AngularJS';\n        $scope.html = 'Hello {{name}}';\n      }]);\n    </script>\n    <div ng-controller=\"GreeterController\">\n      <input ng-model=\"name\"> <br/>\n      <textarea ng-model=\"html\"></textarea> <br/>\n      <div compile=\"html\"></div>\n    </div>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n     it('should auto compile', function() {\n       var textarea = $('textarea');\n       var output = $('div[compile]');\n       // The initial state reads 'Hello AngularJS'.\n       expect(output.getText()).toBe('Hello AngularJS');\n       textarea.clear();\n       textarea.sendKeys('{{name}}!');\n       expect(output.getText()).toBe('AngularJS!');\n     });\n   </file>\n </example>\n\n *\n *\n * @param {string|DOMElement} element Element or HTML string to compile into a template function.\n * @param {function(angular.Scope, cloneAttachFn=)} transclude function available to directives - DEPRECATED.\n *\n * <div class=\"alert alert-danger\">\n * **Note:** Passing a `transclude` function to the $compile function is deprecated, as it\n *   e.g. will not use the right outer scope. Please pass the transclude function as a\n *   `parentBoundTranscludeFn` to the link function instead.\n * </div>\n *\n * @param {number} maxPriority only apply directives lower than given priority (Only effects the\n *                 root element(s), not their children)\n * @returns {function(scope, cloneAttachFn=, options=)} a link function which is used to bind template\n * (a DOM element/tree) to a scope. Where:\n *\n *  * `scope` - A {@link ng.$rootScope.Scope Scope} to bind to.\n *  * `cloneAttachFn` - If `cloneAttachFn` is provided, then the link function will clone the\n *  `template` and call the `cloneAttachFn` function allowing the caller to attach the\n *  cloned elements to the DOM document at the appropriate place. The `cloneAttachFn` is\n *  called as: <br/> `cloneAttachFn(clonedElement, scope)` where:\n *\n *      * `clonedElement` - is a clone of the original `element` passed into the compiler.\n *      * `scope` - is the current scope with which the linking function is working with.\n *\n *  * `options` - An optional object hash with linking options. If `options` is provided, then the following\n *  keys may be used to control linking behavior:\n *\n *      * `parentBoundTranscludeFn` - the transclude function made available to\n *        directives; if given, it will be passed through to the link functions of\n *        directives found in `element` during compilation.\n *      * `transcludeControllers` - an object hash with keys that map controller names\n *        to a hash with the key `instance`, which maps to the controller instance;\n *        if given, it will make the controllers available to directives on the compileNode:\n *        ```\n *        {\n *          parent: {\n *            instance: parentControllerInstance\n *          }\n *        }\n *        ```\n *      * `futureParentElement` - defines the parent to which the `cloneAttachFn` will add\n *        the cloned elements; only needed for transcludes that are allowed to contain non HTML\n *        elements (e.g. SVG elements). See also the `directive.controller` property.\n *\n * Calling the linking function returns the element of the template. It is either the original\n * element passed in, or the clone of the element if the `cloneAttachFn` is provided.\n *\n * After linking the view is not updated until after a call to `$digest`, which typically is done by\n * AngularJS automatically.\n *\n * If you need access to the bound view, there are two ways to do it:\n *\n * - If you are not asking the linking function to clone the template, create the DOM element(s)\n *   before you send them to the compiler and keep this reference around.\n *   ```js\n *     var element = angular.element('<p>{{total}}</p>');\n *     $compile(element)(scope);\n *   ```\n *\n * - if on the other hand, you need the element to be cloned, the view reference from the original\n *   example would not point to the clone, but rather to the original template that was cloned. In\n *   this case, you can access the clone either via the `cloneAttachFn` or the value returned by the\n *   linking function:\n *   ```js\n *     var templateElement = angular.element('<p>{{total}}</p>');\n *     var clonedElement = $compile(templateElement)(scope, function(clonedElement, scope) {\n *       // Attach the clone to DOM document at the right place.\n *     });\n *\n *     // Now we have reference to the cloned DOM via `clonedElement`.\n *     // NOTE: The `clonedElement` returned by the linking function is the same as the\n *     //       `clonedElement` passed to `cloneAttachFn`.\n *   ```\n *\n *\n * For information on how the compiler works, see the\n * {@link guide/compiler AngularJS HTML Compiler} section of the Developer Guide.\n *\n * @knownIssue\n *\n * ### Double Compilation\n *\n   Double compilation occurs when an already compiled part of the DOM gets\n   compiled again. This is an undesired effect and can lead to misbehaving directives, performance issues,\n   and memory leaks. Refer to the Compiler Guide {@link guide/compiler#double-compilation-and-how-to-avoid-it\n   section on double compilation} for an in-depth explanation and ways to avoid it.\n\n * @knownIssue\n\n   ### Issues with `replace: true`\n *\n * <div class=\"alert alert-danger\">\n *   **Note**: {@link $compile#-replace- `replace: true`} is deprecated and not recommended to use,\n *   mainly due to the issues listed here. It has been completely removed in the new Angular.\n * </div>\n *\n * #### Attribute values are not merged\n *\n * When a `replace` directive encounters the same attribute on the original and the replace node,\n * it will simply deduplicate the attribute and join the values with a space or with a `;` in case of\n * the `style` attribute.\n * ```html\n * Original Node: <span class=\"original\" style=\"color: red;\"></span>\n * Replace Template: <span class=\"replaced\" style=\"background: blue;\"></span>\n * Result: <span class=\"original replaced\" style=\"color: red; background: blue;\"></span>\n * ```\n *\n * That means attributes that contain AngularJS expressions will not be merged correctly, e.g.\n * {@link ngShow} or {@link ngClass} will cause a {@link $parse} error:\n *\n * ```html\n * Original Node: <span ng-class=\"{'something': something}\" ng-show=\"!condition\"></span>\n * Replace Template: <span ng-class=\"{'else': else}\" ng-show=\"otherCondition\"></span>\n * Result: <span ng-class=\"{'something': something} {'else': else}\" ng-show=\"!condition otherCondition\"></span>\n * ```\n *\n * See issue [#5695](https://github.com/angular/angular.js/issues/5695).\n *\n * #### Directives are not deduplicated before compilation\n *\n * When the original node and the replace template declare the same directive(s), they will be\n * {@link guide/compiler#double-compilation-and-how-to-avoid-it compiled twice} because the compiler\n * does not deduplicate them. In many cases, this is not noticeable, but e.g. {@link ngModel} will\n * attach `$formatters` and `$parsers` twice.\n *\n * See issue [#2573](https://github.com/angular/angular.js/issues/2573).\n *\n * #### `transclude: element` in the replace template root can have unexpected effects\n *\n * When the replace template has a directive at the root node that uses\n * {@link $compile#-transclude- `transclude: element`}, e.g.\n * {@link ngIf} or {@link ngRepeat}, the DOM structure or scope inheritance can be incorrect.\n * See the following issues:\n *\n * - Incorrect scope on replaced element:\n * [#9837](https://github.com/angular/angular.js/issues/9837)\n * - Different DOM between `template` and `templateUrl`:\n * [#10612](https://github.com/angular/angular.js/issues/14326)\n *\n */\n\n/**\n * @ngdoc directive\n * @name ngProp\n * @restrict A\n * @element ANY\n *\n * @usage\n *\n * ```html\n * <ANY ng-prop-propname=\"expression\">\n * </ANY>\n * ```\n *\n * or with uppercase letters in property (e.g. \"propName\"):\n *\n *\n * ```html\n * <ANY ng-prop-prop_name=\"expression\">\n * </ANY>\n * ```\n *\n *\n * @description\n * The `ngProp` directive binds an expression to a DOM element property.\n * `ngProp` allows writing to arbitrary properties by including\n * the property name in the attribute, e.g. `ng-prop-value=\"'my value'\"` binds 'my value' to\n * the `value` property.\n *\n * Usually, it's not necessary to write to properties in AngularJS, as the built-in directives\n * handle the most common use cases (instead of the above example, you would use {@link ngValue}).\n *\n * However, [custom elements](https://developer.mozilla.org/docs/Web/Web_Components/Using_custom_elements)\n * often use custom properties to hold data, and `ngProp` can be used to provide input to these\n * custom elements.\n *\n * ## Binding to camelCase properties\n *\n * Since HTML attributes are case-insensitive, camelCase properties like `innerHTML` must be escaped.\n * AngularJS uses the underscore (_) in front of a character to indicate that it is uppercase, so\n * `innerHTML`  must be written as `ng-prop-inner_h_t_m_l=\"expression\"` (Note that this is just an\n * example, and for binding HTML {@link ngBindHtml} should be used.\n *\n * ## Security\n *\n * Binding expressions to arbitrary properties poses a security risk, as  properties like `innerHTML`\n * can insert potentially dangerous HTML into the application, e.g. script tags that execute\n * malicious code.\n * For this reason, `ngProp` applies Strict Contextual Escaping with the {@link ng.$sce $sce service}.\n * This means vulnerable properties require their content to be \"trusted\", based on the\n * context of the property. For example, the `innerHTML` is in the `HTML` context, and the\n * `iframe.src` property is in the `RESOURCE_URL` context, which requires that values written to\n * this property are trusted as a `RESOURCE_URL`.\n *\n * This can be set explicitly by calling $sce.trustAs(type, value) on the value that is\n * trusted before passing it to the `ng-prop-*` directive. There are exist shorthand methods for\n * each context type in the form of {@link ng.$sce#trustAsResourceUrl $sce.trustAsResourceUrl()} et al.\n *\n * In some cases you can also rely upon automatic sanitization of untrusted values - see below.\n *\n * Based on the context, other options may exist to mark a value as trusted / configure the behavior\n * of {@link ng.$sce}. For example, to restrict the `RESOURCE_URL` context to specific origins, use\n * the {@link $sceDelegateProvider#trustedResourceUrlList trustedResourceUrlList()}\n * and {@link $sceDelegateProvider#bannedResourceUrlList bannedResourceUrlList()}.\n *\n * {@link ng.$sce#what-trusted-context-types-are-supported- Find out more about the different context types}.\n *\n * ### HTML Sanitization\n *\n * By default, `$sce` will throw an error if it detects untrusted HTML content, and will not bind the\n * content.\n * However, if you include the {@link ngSanitize ngSanitize module}, it will try to sanitize the\n * potentially dangerous HTML, e.g. strip non-trusted tags and attributes when binding to\n * `innerHTML`.\n *\n * @example\n * ### Binding to different contexts\n *\n * <example name=\"ngProp\" module=\"exampleNgProp\">\n *   <file name=\"app.js\">\n *     angular.module('exampleNgProp', [])\n *       .component('main', {\n *         templateUrl: 'main.html',\n *         controller: function($sce) {\n *           this.safeContent = '<strong>Safe content</strong>';\n *           this.unsafeContent = '<button onclick=\"alert(\\'Hello XSS!\\')\">Click for XSS</button>';\n *           this.trustedUnsafeContent = $sce.trustAsHtml(this.unsafeContent);\n *         }\n *       });\n *   </file>\n *   <file name=\"main.html\">\n *     <div>\n *       <div class=\"prop-unit\">\n *         Binding to a property without security context:\n *         <div class=\"prop-binding\" ng-prop-inner_text=\"$ctrl.safeContent\"></div>\n *         <span class=\"prop-note\">innerText</span> (safeContent)\n *       </div>\n *\n *       <div class=\"prop-unit\">\n *         \"Safe\" content that requires a security context will throw because the contents could potentially be dangerous ...\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.safeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (safeContent)\n *       </div>\n *\n *       <div class=\"prop-unit\">\n *         ... so that actually dangerous content cannot be executed:\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.unsafeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (unsafeContent)\n *       </div>\n *\n *       <div class=\"prop-unit\">\n *         ... but unsafe Content that has been trusted explicitly works - only do this if you are 100% sure!\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.trustedUnsafeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (trustedUnsafeContent)\n *       </div>\n *     </div>\n *   </file>\n *   <file name=\"index.html\">\n *     <main></main>\n *   </file>\n *   <file name=\"styles.css\">\n *     .prop-unit {\n *       margin-bottom: 10px;\n *     }\n *\n *     .prop-binding {\n *       min-height: 30px;\n *       border: 1px solid blue;\n *     }\n *\n *     .prop-note {\n *       font-family: Monospace;\n *     }\n *   </file>\n * </example>\n *\n *\n * @example\n * ### Binding to innerHTML with ngSanitize\n *\n * <example name=\"ngProp\" module=\"exampleNgProp\" deps=\"angular-sanitize.js\">\n *   <file name=\"app.js\">\n *     angular.module('exampleNgProp', ['ngSanitize'])\n *       .component('main', {\n *         templateUrl: 'main.html',\n *         controller: function($sce) {\n *           this.safeContent = '<strong>Safe content</strong>';\n *           this.unsafeContent = '<button onclick=\"alert(\\'Hello XSS!\\')\">Click for XSS</button>';\n *           this.trustedUnsafeContent = $sce.trustAsHtml(this.unsafeContent);\n *         }\n *       });\n *   </file>\n *   <file name=\"main.html\">\n *     <div>\n *       <div class=\"prop-unit\">\n *         \"Safe\" content will be sanitized ...\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.safeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (safeContent)\n *       </div>\n *\n *       <div class=\"prop-unit\">\n *         ... as will dangerous content:\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.unsafeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (unsafeContent)\n *       </div>\n *\n *       <div class=\"prop-unit\">\n *         ... and content that has been trusted explicitly works the same as without ngSanitize:\n *         <div class=\"prop-binding\" ng-prop-inner_h_t_m_l=\"$ctrl.trustedUnsafeContent\"></div>\n *         <span class=\"prop-note\">innerHTML</span> (trustedUnsafeContent)\n *       </div>\n *     </div>\n *   </file>\n *   <file name=\"index.html\">\n *     <main></main>\n *   </file>\n *   <file name=\"styles.css\">\n *     .prop-unit {\n *       margin-bottom: 10px;\n *     }\n *\n *     .prop-binding {\n *       min-height: 30px;\n *       border: 1px solid blue;\n *     }\n *\n *     .prop-note {\n *       font-family: Monospace;\n *     }\n *   </file>\n * </example>\n *\n */\n\n/** @ngdoc directive\n * @name ngOn\n * @restrict A\n * @element ANY\n *\n * @usage\n *\n * ```html\n * <ANY ng-on-eventname=\"expression\">\n * </ANY>\n * ```\n *\n * or with uppercase letters in property (e.g. \"eventName\"):\n *\n *\n * ```html\n * <ANY ng-on-event_name=\"expression\">\n * </ANY>\n * ```\n *\n * @description\n * The `ngOn` directive adds an event listener to a DOM element via\n * {@link angular.element angular.element().on()}, and evaluates an expression when the event is\n * fired.\n * `ngOn` allows adding listeners for arbitrary events by including\n * the event name in the attribute, e.g. `ng-on-drop=\"onDrop()\"` executes the 'onDrop()' expression\n * when the `drop` event is fired.\n *\n * AngularJS provides specific directives for many events, such as {@link ngClick}, so in most\n * cases it is not necessary to use `ngOn`. However, AngularJS does not support all events\n * (e.g. the `drop` event in the example above), and new events might be introduced in later DOM\n * standards.\n *\n * Another use-case for `ngOn` is listening to\n * [custom events](https://developer.mozilla.org/docs/Web/Guide/Events/Creating_and_triggering_events)\n * fired by\n * [custom elements](https://developer.mozilla.org/docs/Web/Web_Components/Using_custom_elements).\n *\n * ## Binding to camelCase properties\n *\n * Since HTML attributes are case-insensitive, camelCase properties like `myEvent` must be escaped.\n * AngularJS uses the underscore (_) in front of a character to indicate that it is uppercase, so\n * `myEvent` must be written as `ng-on-my_event=\"expression\"`.\n *\n * @example\n * ### Bind to built-in DOM events\n *\n * <example name=\"ngOn\" module=\"exampleNgOn\">\n *   <file name=\"app.js\">\n *     angular.module('exampleNgOn', [])\n *       .component('main', {\n *         templateUrl: 'main.html',\n *         controller: function() {\n *           this.clickCount = 0;\n *           this.mouseoverCount = 0;\n *\n *           this.loadingState = 0;\n *         }\n *       });\n *   </file>\n *   <file name=\"main.html\">\n *     <div>\n *       This is equivalent to `ngClick` and `ngMouseover`:<br>\n *       <button\n *         ng-on-click=\"$ctrl.clickCount = $ctrl.clickCount + 1\"\n *         ng-on-mouseover=\"$ctrl.mouseoverCount = $ctrl.mouseoverCount + 1\">Click or mouseover</button><br>\n *       clickCount: {{$ctrl.clickCount}}<br>\n *       mouseover: {{$ctrl.mouseoverCount}}\n *\n *       <hr>\n *\n *       For the `error` and `load` event on images no built-in AngularJS directives exist:<br>\n *       <img src=\"thisimagedoesnotexist.png\" ng-on-error=\"$ctrl.loadingState = -1\" ng-on-load=\"$ctrl.loadingState = 1\"><br>\n *       <div ng-switch=\"$ctrl.loadingState\">\n *         <span ng-switch-when=\"0\">Image is loading</span>\n *         <span ng-switch-when=\"-1\">Image load error</span>\n *         <span ng-switch-when=\"1\">Image loaded successfully</span>\n *       </div>\n *     </div>\n *   </file>\n *   <file name=\"index.html\">\n *     <main></main>\n *   </file>\n * </example>\n *\n *\n * @example\n * ### Bind to custom DOM events\n *\n * <example name=\"ngOnCustom\" module=\"exampleNgOn\">\n *   <file name=\"app.js\">\n *     angular.module('exampleNgOn', [])\n *       .component('main', {\n *         templateUrl: 'main.html',\n *         controller: function() {\n *           this.eventLog = '';\n *\n *           this.listener = function($event) {\n *             this.eventLog = 'Event with type \"' + $event.type + '\" fired at ' + $event.detail;\n *           };\n *         }\n *       })\n *       .component('childComponent', {\n *         templateUrl: 'child.html',\n *         controller: function($element) {\n *           this.fireEvent = function() {\n *             var event = new CustomEvent('customtype', { detail: new Date()});\n *\n *             $element[0].dispatchEvent(event);\n *           };\n *         }\n *       });\n *   </file>\n *   <file name=\"main.html\">\n *     <child-component ng-on-customtype=\"$ctrl.listener($event)\"></child-component><br>\n *     <span>Event log: {{$ctrl.eventLog}}</span>\n *   </file>\n *   <file name=\"child.html\">\n      <button ng-click=\"$ctrl.fireEvent()\">Fire custom event</button>\n *   </file>\n *   <file name=\"index.html\">\n *     <main></main>\n *   </file>\n * </example>\n */\n\nvar $compileMinErr = minErr('$compile');\n\nfunction UNINITIALIZED_VALUE() {}\nvar _UNINITIALIZED_VALUE = new UNINITIALIZED_VALUE();\n\n/**\n * @ngdoc provider\n * @name $compileProvider\n *\n * @description\n */\n$CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider'];\n/** @this */\nfunction $CompileProvider($provide, $$sanitizeUriProvider) {\n  var hasDirectives = {},\n      Suffix = 'Directive',\n      COMMENT_DIRECTIVE_REGEXP = /^\\s*directive:\\s*([\\w-]+)\\s+(.*)$/,\n      CLASS_DIRECTIVE_REGEXP = /(([\\w-]+)(?::([^;]+))?;?)/,\n      ALL_OR_NOTHING_ATTRS = makeMap('ngSrc,ngSrcset,src,srcset'),\n      REQUIRE_PREFIX_REGEXP = /^(?:(\\^\\^?)?(\\?)?(\\^\\^?)?)?/;\n\n  // Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes\n  // The assumption is that future DOM event attribute names will begin with\n  // 'on' and be composed of only English letters.\n  var EVENT_HANDLER_ATTR_REGEXP = /^(on[a-z]+|formaction)$/;\n  var bindingCache = createMap();\n\n  function parseIsolateBindings(scope, directiveName, isController) {\n    var LOCAL_REGEXP = /^([@&]|[=<](\\*?))(\\??)\\s*([\\w$]*)$/;\n\n    var bindings = createMap();\n\n    forEach(scope, function(definition, scopeName) {\n      definition = definition.trim();\n\n      if (definition in bindingCache) {\n        bindings[scopeName] = bindingCache[definition];\n        return;\n      }\n      var match = definition.match(LOCAL_REGEXP);\n\n      if (!match) {\n        throw $compileMinErr('iscp',\n            'Invalid {3} for directive \\'{0}\\'.' +\n            ' Definition: {... {1}: \\'{2}\\' ...}',\n            directiveName, scopeName, definition,\n            (isController ? 'controller bindings definition' :\n            'isolate scope definition'));\n      }\n\n      bindings[scopeName] = {\n        mode: match[1][0],\n        collection: match[2] === '*',\n        optional: match[3] === '?',\n        attrName: match[4] || scopeName\n      };\n      if (match[4]) {\n        bindingCache[definition] = bindings[scopeName];\n      }\n    });\n\n    return bindings;\n  }\n\n  function parseDirectiveBindings(directive, directiveName) {\n    var bindings = {\n      isolateScope: null,\n      bindToController: null\n    };\n    if (isObject(directive.scope)) {\n      if (directive.bindToController === true) {\n        bindings.bindToController = parseIsolateBindings(directive.scope,\n                                                         directiveName, true);\n        bindings.isolateScope = {};\n      } else {\n        bindings.isolateScope = parseIsolateBindings(directive.scope,\n                                                     directiveName, false);\n      }\n    }\n    if (isObject(directive.bindToController)) {\n      bindings.bindToController =\n          parseIsolateBindings(directive.bindToController, directiveName, true);\n    }\n    if (bindings.bindToController && !directive.controller) {\n      // There is no controller\n      throw $compileMinErr('noctrl',\n            'Cannot bind to controller without directive \\'{0}\\'s controller.',\n            directiveName);\n    }\n    return bindings;\n  }\n\n  function assertValidDirectiveName(name) {\n    var letter = name.charAt(0);\n    if (!letter || letter !== lowercase(letter)) {\n      throw $compileMinErr('baddir', 'Directive/Component name \\'{0}\\' is invalid. The first character must be a lowercase letter', name);\n    }\n    if (name !== name.trim()) {\n      throw $compileMinErr('baddir',\n            'Directive/Component name \\'{0}\\' is invalid. The name should not contain leading or trailing whitespaces',\n            name);\n    }\n  }\n\n  function getDirectiveRequire(directive) {\n    var require = directive.require || (directive.controller && directive.name);\n\n    if (!isArray(require) && isObject(require)) {\n      forEach(require, function(value, key) {\n        var match = value.match(REQUIRE_PREFIX_REGEXP);\n        var name = value.substring(match[0].length);\n        if (!name) require[key] = match[0] + key;\n      });\n    }\n\n    return require;\n  }\n\n  function getDirectiveRestrict(restrict, name) {\n    if (restrict && !(isString(restrict) && /[EACM]/.test(restrict))) {\n      throw $compileMinErr('badrestrict',\n          'Restrict property \\'{0}\\' of directive \\'{1}\\' is invalid',\n          restrict,\n          name);\n    }\n\n    return restrict || 'EA';\n  }\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#directive\n   * @kind function\n   *\n   * @description\n   * Register a new directive with the compiler.\n   *\n   * @param {string|Object} name Name of the directive in camel-case (i.e. `ngBind` which will match\n   *    as `ng-bind`), or an object map of directives where the keys are the names and the values\n   *    are the factories.\n   * @param {Function|Array} directiveFactory An injectable directive factory function. See the\n   *    {@link guide/directive directive guide} and the {@link $compile compile API} for more info.\n   * @returns {ng.$compileProvider} Self for chaining.\n   */\n  this.directive = function registerDirective(name, directiveFactory) {\n    assertArg(name, 'name');\n    assertNotHasOwnProperty(name, 'directive');\n    if (isString(name)) {\n      assertValidDirectiveName(name);\n      assertArg(directiveFactory, 'directiveFactory');\n      if (!hasDirectives.hasOwnProperty(name)) {\n        hasDirectives[name] = [];\n        $provide.factory(name + Suffix, ['$injector', '$exceptionHandler',\n          function($injector, $exceptionHandler) {\n            var directives = [];\n            forEach(hasDirectives[name], function(directiveFactory, index) {\n              try {\n                var directive = $injector.invoke(directiveFactory);\n                if (isFunction(directive)) {\n                  directive = { compile: valueFn(directive) };\n                } else if (!directive.compile && directive.link) {\n                  directive.compile = valueFn(directive.link);\n                }\n                directive.priority = directive.priority || 0;\n                directive.index = index;\n                directive.name = directive.name || name;\n                directive.require = getDirectiveRequire(directive);\n                directive.restrict = getDirectiveRestrict(directive.restrict, name);\n                directive.$$moduleName = directiveFactory.$$moduleName;\n                directives.push(directive);\n              } catch (e) {\n                $exceptionHandler(e);\n              }\n            });\n            return directives;\n          }]);\n      }\n      hasDirectives[name].push(directiveFactory);\n    } else {\n      forEach(name, reverseParams(registerDirective));\n    }\n    return this;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#component\n   * @module ng\n   * @param {string|Object} name Name of the component in camelCase (i.e. `myComp` which will match `<my-comp>`),\n   *    or an object map of components where the keys are the names and the values are the component definition objects.\n   * @param {Object} options Component definition object (a simplified\n   *    {@link ng.$compile#directive-definition-object directive definition object}),\n   *    with the following properties (all optional):\n   *\n   *    - `controller` – `{(string|function()=}` – controller constructor function that should be\n   *      associated with newly created scope or the name of a {@link ng.$compile#-controller-\n   *      registered controller} if passed as a string. An empty `noop` function by default.\n   *    - `controllerAs` – `{string=}` – identifier name for to reference the controller in the component's scope.\n   *      If present, the controller will be published to scope under the `controllerAs` name.\n   *      If not present, this will default to be `$ctrl`.\n   *    - `template` – `{string=|function()=}` – html template as a string or a function that\n   *      returns an html template as a string which should be used as the contents of this component.\n   *      Empty string by default.\n   *\n   *      If `template` is a function, then it is {@link auto.$injector#invoke injected} with\n   *      the following locals:\n   *\n   *      - `$element` - Current element\n   *      - `$attrs` - Current attributes object for the element\n   *\n   *    - `templateUrl` – `{string=|function()=}` – path or function that returns a path to an html\n   *      template that should be used  as the contents of this component.\n   *\n   *      If `templateUrl` is a function, then it is {@link auto.$injector#invoke injected} with\n   *      the following locals:\n   *\n   *      - `$element` - Current element\n   *      - `$attrs` - Current attributes object for the element\n   *\n   *    - `bindings` – `{object=}` – defines bindings between DOM attributes and component properties.\n   *      Component properties are always bound to the component controller and not to the scope.\n   *      See {@link ng.$compile#-bindtocontroller- `bindToController`}.\n   *    - `transclude` – `{boolean=}` – whether {@link $compile#transclusion content transclusion} is enabled.\n   *      Disabled by default.\n   *    - `require` - `{Object<string, string>=}` - requires the controllers of other directives and binds them to\n   *      this component's controller. The object keys specify the property names under which the required\n   *      controllers (object values) will be bound. See {@link ng.$compile#-require- `require`}.\n   *    - `$...` – additional properties to attach to the directive factory function and the controller\n   *      constructor function. (This is used by the component router to annotate)\n   *\n   * @returns {ng.$compileProvider} the compile provider itself, for chaining of function calls.\n   * @description\n   * Register a **component definition** with the compiler. This is a shorthand for registering a special\n   * type of directive, which represents a self-contained UI component in your application. Such components\n   * are always isolated (i.e. `scope: {}`) and are always restricted to elements (i.e. `restrict: 'E'`).\n   *\n   * Component definitions are very simple and do not require as much configuration as defining general\n   * directives. Component definitions usually consist only of a template and a controller backing it.\n   *\n   * In order to make the definition easier, components enforce best practices like use of `controllerAs`,\n   * `bindToController`. They always have **isolate scope** and are restricted to elements.\n   *\n   * Here are a few examples of how you would usually define components:\n   *\n   * ```js\n   *   var myMod = angular.module(...);\n   *   myMod.component('myComp', {\n   *     template: '<div>My name is {{$ctrl.name}}</div>',\n   *     controller: function() {\n   *       this.name = 'shahar';\n   *     }\n   *   });\n   *\n   *   myMod.component('myComp', {\n   *     template: '<div>My name is {{$ctrl.name}}</div>',\n   *     bindings: {name: '@'}\n   *   });\n   *\n   *   myMod.component('myComp', {\n   *     templateUrl: 'views/my-comp.html',\n   *     controller: 'MyCtrl',\n   *     controllerAs: 'ctrl',\n   *     bindings: {name: '@'}\n   *   });\n   *\n   * ```\n   * For more examples, and an in-depth guide, see the {@link guide/component component guide}.\n   *\n   * <br />\n   * See also {@link ng.$compileProvider#directive $compileProvider.directive()}.\n   */\n  this.component = function registerComponent(name, options) {\n    if (!isString(name)) {\n      forEach(name, reverseParams(bind(this, registerComponent)));\n      return this;\n    }\n\n    var controller = options.controller || function() {};\n\n    function factory($injector) {\n      function makeInjectable(fn) {\n        if (isFunction(fn) || isArray(fn)) {\n          return /** @this */ function(tElement, tAttrs) {\n            return $injector.invoke(fn, this, {$element: tElement, $attrs: tAttrs});\n          };\n        } else {\n          return fn;\n        }\n      }\n\n      var template = (!options.template && !options.templateUrl ? '' : options.template);\n      var ddo = {\n        controller: controller,\n        controllerAs: identifierForController(options.controller) || options.controllerAs || '$ctrl',\n        template: makeInjectable(template),\n        templateUrl: makeInjectable(options.templateUrl),\n        transclude: options.transclude,\n        scope: {},\n        bindToController: options.bindings || {},\n        restrict: 'E',\n        require: options.require\n      };\n\n      // Copy annotations (starting with $) over to the DDO\n      forEach(options, function(val, key) {\n        if (key.charAt(0) === '$') ddo[key] = val;\n      });\n\n      return ddo;\n    }\n\n    // TODO(pete) remove the following `forEach` before we release 1.6.0\n    // The component-router@0.2.0 looks for the annotations on the controller constructor\n    // Nothing in AngularJS looks for annotations on the factory function but we can't remove\n    // it from 1.5.x yet.\n\n    // Copy any annotation properties (starting with $) over to the factory and controller constructor functions\n    // These could be used by libraries such as the new component router\n    forEach(options, function(val, key) {\n      if (key.charAt(0) === '$') {\n        factory[key] = val;\n        // Don't try to copy over annotations to named controller\n        if (isFunction(controller)) controller[key] = val;\n      }\n    });\n\n    factory.$inject = ['$injector'];\n\n    return this.directive(name, factory);\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#aHrefSanitizationTrustedUrlList\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for determining trusted safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at preventing XSS attacks via html links.\n   *\n   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationTrustedUrlList`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to trust urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationTrustedUrlList = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.aHrefSanitizationTrustedUrlList(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.aHrefSanitizationTrustedUrlList();\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#aHrefSanitizationWhitelist\n   * @kind function\n   *\n   * @deprecated\n   * sinceVersion=\"1.8.1\"\n   *\n   * This method is deprecated. Use {@link $compileProvider#aHrefSanitizationTrustedUrlList\n   * aHrefSanitizationTrustedUrlList} instead.\n   */\n  Object.defineProperty(this, 'aHrefSanitizationWhitelist', {\n    get: function() {\n      return this.aHrefSanitizationTrustedUrlList;\n    },\n    set: function(value) {\n      this.aHrefSanitizationTrustedUrlList = value;\n    }\n  });\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#imgSrcSanitizationTrustedUrlList\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides the default regular expression that is used for determining trusted safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via html links.\n   *\n   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into\n   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationTrustedUrlList`\n   * regular expression. If a match is found, the original url is written into the dom. Otherwise,\n   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.\n   *\n   * @param {RegExp=} regexp New regexp to trust urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationTrustedUrlList = function(regexp) {\n    if (isDefined(regexp)) {\n      $$sanitizeUriProvider.imgSrcSanitizationTrustedUrlList(regexp);\n      return this;\n    } else {\n      return $$sanitizeUriProvider.imgSrcSanitizationTrustedUrlList();\n    }\n  };\n\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#imgSrcSanitizationWhitelist\n   * @kind function\n   *\n   * @deprecated\n   * sinceVersion=\"1.8.1\"\n   *\n   * This method is deprecated. Use {@link $compileProvider#imgSrcSanitizationTrustedUrlList\n   * imgSrcSanitizationTrustedUrlList} instead.\n   */\n  Object.defineProperty(this, 'imgSrcSanitizationWhitelist', {\n    get: function() {\n      return this.imgSrcSanitizationTrustedUrlList;\n    },\n    set: function(value) {\n      this.imgSrcSanitizationTrustedUrlList = value;\n    }\n  });\n\n  /**\n   * @ngdoc method\n   * @name  $compileProvider#debugInfoEnabled\n   *\n   * @param {boolean=} enabled update the debugInfoEnabled state if provided, otherwise just return the\n   * current debugInfoEnabled state\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   *\n   * @kind function\n   *\n   * @description\n   * Call this method to enable/disable various debug runtime information in the compiler such as adding\n   * binding information and a reference to the current scope on to DOM elements.\n   * If enabled, the compiler will add the following to DOM elements that have been bound to the scope\n   * * `ng-binding` CSS class\n   * * `ng-scope` and `ng-isolated-scope` CSS classes\n   * * `$binding` data property containing an array of the binding expressions\n   * * Data properties used by the {@link angular.element#methods `scope()`/`isolateScope()` methods} to return\n   *   the element's scope.\n   * * Placeholder comments will contain information about what directive and binding caused the placeholder.\n   *   E.g. `<!-- ngIf: shouldShow() -->`.\n   *\n   * You may want to disable this in production for a significant performance boost. See\n   * {@link guide/production#disabling-debug-data Disabling Debug Data} for more.\n   *\n   * The default value is true.\n   */\n  var debugInfoEnabled = true;\n  this.debugInfoEnabled = function(enabled) {\n    if (isDefined(enabled)) {\n      debugInfoEnabled = enabled;\n      return this;\n    }\n    return debugInfoEnabled;\n  };\n\n  /**\n   * @ngdoc method\n   * @name  $compileProvider#strictComponentBindingsEnabled\n   *\n   * @param {boolean=} enabled update the strictComponentBindingsEnabled state if provided,\n   * otherwise return the current strictComponentBindingsEnabled state.\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   *\n   * @kind function\n   *\n   * @description\n   * Call this method to enable / disable the strict component bindings check. If enabled, the\n   * compiler will enforce that all scope / controller bindings of a\n   * {@link $compileProvider#directive directive} / {@link $compileProvider#component component}\n   * that are not set as optional with `?`, must be provided when the directive is instantiated.\n   * If not provided, the compiler will throw the\n   * {@link error/$compile/missingattr $compile:missingattr error}.\n   *\n   * The default value is false.\n   */\n  var strictComponentBindingsEnabled = false;\n  this.strictComponentBindingsEnabled = function(enabled) {\n    if (isDefined(enabled)) {\n      strictComponentBindingsEnabled = enabled;\n      return this;\n    }\n    return strictComponentBindingsEnabled;\n  };\n\n  var TTL = 10;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#onChangesTtl\n   * @description\n   *\n   * Sets the number of times `$onChanges` hooks can trigger new changes before giving up and\n   * assuming that the model is unstable.\n   *\n   * The current default is 10 iterations.\n   *\n   * In complex applications it's possible that dependencies between `$onChanges` hooks and bindings will result\n   * in several iterations of calls to these hooks. However if an application needs more than the default 10\n   * iterations to stabilize then you should investigate what is causing the model to continuously change during\n   * the `$onChanges` hook execution.\n   *\n   * Increasing the TTL could have performance implications, so you should not change it without proper justification.\n   *\n   * @param {number} limit The number of `$onChanges` hook iterations.\n   * @returns {number|object} the current limit (or `this` if called as a setter for chaining)\n   */\n  this.onChangesTtl = function(value) {\n    if (arguments.length) {\n      TTL = value;\n      return this;\n    }\n    return TTL;\n  };\n\n  var commentDirectivesEnabledConfig = true;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#commentDirectivesEnabled\n   * @description\n   *\n   * It indicates to the compiler\n   * whether or not directives on comments should be compiled.\n   * Defaults to `true`.\n   *\n   * Calling this function with false disables the compilation of directives\n   * on comments for the whole application.\n   * This results in a compilation performance gain,\n   * as the compiler doesn't have to check comments when looking for directives.\n   * This should however only be used if you are sure that no comment directives are used in\n   * the application (including any 3rd party directives).\n   *\n   * @param {boolean} enabled `false` if the compiler may ignore directives on comments\n   * @returns {boolean|object} the current value (or `this` if called as a setter for chaining)\n   */\n  this.commentDirectivesEnabled = function(value) {\n    if (arguments.length) {\n      commentDirectivesEnabledConfig = value;\n      return this;\n    }\n    return commentDirectivesEnabledConfig;\n  };\n\n\n  var cssClassDirectivesEnabledConfig = true;\n  /**\n   * @ngdoc method\n   * @name $compileProvider#cssClassDirectivesEnabled\n   * @description\n   *\n   * It indicates to the compiler\n   * whether or not directives on element classes should be compiled.\n   * Defaults to `true`.\n   *\n   * Calling this function with false disables the compilation of directives\n   * on element classes for the whole application.\n   * This results in a compilation performance gain,\n   * as the compiler doesn't have to check element classes when looking for directives.\n   * This should however only be used if you are sure that no class directives are used in\n   * the application (including any 3rd party directives).\n   *\n   * @param {boolean} enabled `false` if the compiler may ignore directives on element classes\n   * @returns {boolean|object} the current value (or `this` if called as a setter for chaining)\n   */\n  this.cssClassDirectivesEnabled = function(value) {\n    if (arguments.length) {\n      cssClassDirectivesEnabledConfig = value;\n      return this;\n    }\n    return cssClassDirectivesEnabledConfig;\n  };\n\n\n  /**\n   * The security context of DOM Properties.\n   * @private\n   */\n  var PROP_CONTEXTS = createMap();\n\n  /**\n   * @ngdoc method\n   * @name $compileProvider#addPropertySecurityContext\n   * @description\n   *\n   * Defines the security context for DOM properties bound by ng-prop-*.\n   *\n   * @param {string} elementName The element name or '*' to match any element.\n   * @param {string} propertyName The DOM property name.\n   * @param {string} ctx The {@link $sce} security context in which this value is safe for use, e.g. `$sce.URL`\n   * @returns {object} `this` for chaining\n   */\n  this.addPropertySecurityContext = function(elementName, propertyName, ctx) {\n    var key = (elementName.toLowerCase() + '|' + propertyName.toLowerCase());\n\n    if (key in PROP_CONTEXTS && PROP_CONTEXTS[key] !== ctx) {\n      throw $compileMinErr('ctxoverride', 'Property context \\'{0}.{1}\\' already set to \\'{2}\\', cannot override to \\'{3}\\'.', elementName, propertyName, PROP_CONTEXTS[key], ctx);\n    }\n\n    PROP_CONTEXTS[key] = ctx;\n    return this;\n  };\n\n  /* Default property contexts.\n   *\n   * Copy of https://github.com/angular/angular/blob/6.0.6/packages/compiler/src/schema/dom_security_schema.ts#L31-L58\n   * Changing:\n   * - SecurityContext.* => SCE_CONTEXTS/$sce.*\n   * - STYLE => CSS\n   * - various URL => MEDIA_URL\n   * - *|formAction, form|action URL => RESOURCE_URL (like the attribute)\n   */\n  (function registerNativePropertyContexts() {\n    function registerContext(ctx, values) {\n      forEach(values, function(v) { PROP_CONTEXTS[v.toLowerCase()] = ctx; });\n    }\n\n    registerContext(SCE_CONTEXTS.HTML, [\n      'iframe|srcdoc',\n      '*|innerHTML',\n      '*|outerHTML'\n    ]);\n    registerContext(SCE_CONTEXTS.CSS, ['*|style']);\n    registerContext(SCE_CONTEXTS.URL, [\n      'area|href',       'area|ping',\n      'a|href',          'a|ping',\n      'blockquote|cite',\n      'body|background',\n      'del|cite',\n      'input|src',\n      'ins|cite',\n      'q|cite'\n    ]);\n    registerContext(SCE_CONTEXTS.MEDIA_URL, [\n      'audio|src',\n      'img|src',    'img|srcset',\n      'source|src', 'source|srcset',\n      'track|src',\n      'video|src',  'video|poster'\n    ]);\n    registerContext(SCE_CONTEXTS.RESOURCE_URL, [\n      '*|formAction',\n      'applet|code',      'applet|codebase',\n      'base|href',\n      'embed|src',\n      'frame|src',\n      'form|action',\n      'head|profile',\n      'html|manifest',\n      'iframe|src',\n      'link|href',\n      'media|src',\n      'object|codebase',  'object|data',\n      'script|src'\n    ]);\n  })();\n\n\n  this.$get = [\n            '$injector', '$interpolate', '$exceptionHandler', '$templateRequest', '$parse',\n            '$controller', '$rootScope', '$sce', '$animate',\n    function($injector,   $interpolate,   $exceptionHandler,   $templateRequest,   $parse,\n             $controller,   $rootScope,   $sce,   $animate) {\n\n    var SIMPLE_ATTR_NAME = /^\\w/;\n    var specialAttrHolder = window.document.createElement('div');\n\n\n    var commentDirectivesEnabled = commentDirectivesEnabledConfig;\n    var cssClassDirectivesEnabled = cssClassDirectivesEnabledConfig;\n\n\n    var onChangesTtl = TTL;\n    // The onChanges hooks should all be run together in a single digest\n    // When changes occur, the call to trigger their hooks will be added to this queue\n    var onChangesQueue;\n\n    // This function is called in a $$postDigest to trigger all the onChanges hooks in a single digest\n    function flushOnChangesQueue() {\n      try {\n        if (!(--onChangesTtl)) {\n          // We have hit the TTL limit so reset everything\n          onChangesQueue = undefined;\n          throw $compileMinErr('infchng', '{0} $onChanges() iterations reached. Aborting!\\n', TTL);\n        }\n        // We must run this hook in an apply since the $$postDigest runs outside apply\n        $rootScope.$apply(function() {\n          for (var i = 0, ii = onChangesQueue.length; i < ii; ++i) {\n            try {\n              onChangesQueue[i]();\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          // Reset the queue to trigger a new schedule next time there is a change\n          onChangesQueue = undefined;\n        });\n      } finally {\n        onChangesTtl++;\n      }\n    }\n\n\n    function sanitizeSrcset(value, invokeType) {\n      if (!value) {\n        return value;\n      }\n      if (!isString(value)) {\n        throw $compileMinErr('srcset', 'Can\\'t pass trusted values to `{0}`: \"{1}\"', invokeType, value.toString());\n      }\n\n      // Such values are a bit too complex to handle automatically inside $sce.\n      // Instead, we sanitize each of the URIs individually, which works, even dynamically.\n\n      // It's not possible to work around this using `$sce.trustAsMediaUrl`.\n      // If you want to programmatically set explicitly trusted unsafe URLs, you should use\n      // `$sce.trustAsHtml` on the whole `img` tag and inject it into the DOM using the\n      // `ng-bind-html` directive.\n\n      var result = '';\n\n      // first check if there are spaces because it's not the same pattern\n      var trimmedSrcset = trim(value);\n      //                (   999x   ,|   999w   ,|   ,|,   )\n      var srcPattern = /(\\s+\\d+x\\s*,|\\s+\\d+w\\s*,|\\s+,|,\\s+)/;\n      var pattern = /\\s/.test(trimmedSrcset) ? srcPattern : /(,)/;\n\n      // split srcset into tuple of uri and descriptor except for the last item\n      var rawUris = trimmedSrcset.split(pattern);\n\n      // for each tuples\n      var nbrUrisWith2parts = Math.floor(rawUris.length / 2);\n      for (var i = 0; i < nbrUrisWith2parts; i++) {\n        var innerIdx = i * 2;\n        // sanitize the uri\n        result += $sce.getTrustedMediaUrl(trim(rawUris[innerIdx]));\n        // add the descriptor\n        result += ' ' + trim(rawUris[innerIdx + 1]);\n      }\n\n      // split the last item into uri and descriptor\n      var lastTuple = trim(rawUris[i * 2]).split(/\\s/);\n\n      // sanitize the last uri\n      result += $sce.getTrustedMediaUrl(trim(lastTuple[0]));\n\n      // and add the last descriptor if any\n      if (lastTuple.length === 2) {\n        result += (' ' + trim(lastTuple[1]));\n      }\n      return result;\n    }\n\n\n    function Attributes(element, attributesToCopy) {\n      if (attributesToCopy) {\n        var keys = Object.keys(attributesToCopy);\n        var i, l, key;\n\n        for (i = 0, l = keys.length; i < l; i++) {\n          key = keys[i];\n          this[key] = attributesToCopy[key];\n        }\n      } else {\n        this.$attr = {};\n      }\n\n      this.$$element = element;\n    }\n\n    Attributes.prototype = {\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$normalize\n       * @kind function\n       *\n       * @description\n       * Converts an attribute name (e.g. dash/colon/underscore-delimited string, optionally prefixed with `x-` or\n       * `data-`) to its normalized, camelCase form.\n       *\n       * Also there is special case for Moz prefix starting with upper case letter.\n       *\n       * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}\n       *\n       * @param {string} name Name to normalize\n       */\n      $normalize: directiveNormalize,\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$addClass\n       * @kind function\n       *\n       * @description\n       * Adds the CSS class value specified by the classVal parameter to the element. If animations\n       * are enabled then an animation will be triggered for the class addition.\n       *\n       * @param {string} classVal The className value that will be added to the element\n       */\n      $addClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.addClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$removeClass\n       * @kind function\n       *\n       * @description\n       * Removes the CSS class value specified by the classVal parameter from the element. If\n       * animations are enabled then an animation will be triggered for the class removal.\n       *\n       * @param {string} classVal The className value that will be removed from the element\n       */\n      $removeClass: function(classVal) {\n        if (classVal && classVal.length > 0) {\n          $animate.removeClass(this.$$element, classVal);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$updateClass\n       * @kind function\n       *\n       * @description\n       * Adds and removes the appropriate CSS class values to the element based on the difference\n       * between the new and old CSS class values (specified as newClasses and oldClasses).\n       *\n       * @param {string} newClasses The current CSS className value\n       * @param {string} oldClasses The former CSS className value\n       */\n      $updateClass: function(newClasses, oldClasses) {\n        var toAdd = tokenDifference(newClasses, oldClasses);\n        if (toAdd && toAdd.length) {\n          $animate.addClass(this.$$element, toAdd);\n        }\n\n        var toRemove = tokenDifference(oldClasses, newClasses);\n        if (toRemove && toRemove.length) {\n          $animate.removeClass(this.$$element, toRemove);\n        }\n      },\n\n      /**\n       * Set a normalized attribute on the element in a way such that all directives\n       * can share the attribute. This function properly handles boolean attributes.\n       * @param {string} key Normalized key. (ie ngAttribute)\n       * @param {string|boolean} value The value to set. If `null` attribute will be deleted.\n       * @param {boolean=} writeAttr If false, does not write the value to DOM element attribute.\n       *     Defaults to true.\n       * @param {string=} attrName Optional none normalized name. Defaults to key.\n       */\n      $set: function(key, value, writeAttr, attrName) {\n        // TODO: decide whether or not to throw an error if \"class\"\n        // is set through this function since it may cause $updateClass to\n        // become unstable.\n\n        var node = this.$$element[0],\n            booleanKey = getBooleanAttrName(node, key),\n            aliasedKey = getAliasedAttrName(key),\n            observer = key,\n            nodeName;\n\n        if (booleanKey) {\n          this.$$element.prop(key, value);\n          attrName = booleanKey;\n        } else if (aliasedKey) {\n          this[aliasedKey] = value;\n          observer = aliasedKey;\n        }\n\n        this[key] = value;\n\n        // translate normalized key to actual key\n        if (attrName) {\n          this.$attr[key] = attrName;\n        } else {\n          attrName = this.$attr[key];\n          if (!attrName) {\n            this.$attr[key] = attrName = snake_case(key, '-');\n          }\n        }\n\n        nodeName = nodeName_(this.$$element);\n\n        // Sanitize img[srcset] values.\n        if (nodeName === 'img' && key === 'srcset') {\n          this[key] = value = sanitizeSrcset(value, '$set(\\'srcset\\', value)');\n        }\n\n        if (writeAttr !== false) {\n          if (value === null || isUndefined(value)) {\n            this.$$element.removeAttr(attrName);\n          } else {\n            if (SIMPLE_ATTR_NAME.test(attrName)) {\n              // jQuery skips special boolean attrs treatment in XML nodes for\n              // historical reasons and hence AngularJS cannot freely call\n              // `.attr(attrName, false) with such attributes. To avoid issues\n              // in XHTML, call `removeAttr` in such cases instead.\n              // See https://github.com/jquery/jquery/issues/4249\n              if (booleanKey && value === false) {\n                this.$$element.removeAttr(attrName);\n              } else {\n                this.$$element.attr(attrName, value);\n              }\n            } else {\n              setSpecialAttr(this.$$element[0], attrName, value);\n            }\n          }\n        }\n\n        // fire observers\n        var $$observers = this.$$observers;\n        if ($$observers) {\n          forEach($$observers[observer], function(fn) {\n            try {\n              fn(value);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          });\n        }\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $compile.directive.Attributes#$observe\n       * @kind function\n       *\n       * @description\n       * Observes an interpolated attribute.\n       *\n       * The observer function will be invoked once during the next `$digest` following\n       * compilation. The observer is then invoked whenever the interpolated value\n       * changes.\n       *\n       * @param {string} key Normalized key. (ie ngAttribute) .\n       * @param {function(interpolatedValue)} fn Function that will be called whenever\n                the interpolated value of the attribute changes.\n       *        See the {@link guide/interpolation#how-text-and-attribute-bindings-work Interpolation\n       *        guide} for more info.\n       * @returns {function()} Returns a deregistration function for this observer.\n       */\n      $observe: function(key, fn) {\n        var attrs = this,\n            $$observers = (attrs.$$observers || (attrs.$$observers = createMap())),\n            listeners = ($$observers[key] || ($$observers[key] = []));\n\n        listeners.push(fn);\n        $rootScope.$evalAsync(function() {\n          if (!listeners.$$inter && attrs.hasOwnProperty(key) && !isUndefined(attrs[key])) {\n            // no one registered attribute interpolation function, so lets call it manually\n            fn(attrs[key]);\n          }\n        });\n\n        return function() {\n          arrayRemove(listeners, fn);\n        };\n      }\n    };\n\n    function setSpecialAttr(element, attrName, value) {\n      // Attributes names that do not start with letters (such as `(click)`) cannot be set using `setAttribute`\n      // so we have to jump through some hoops to get such an attribute\n      // https://github.com/angular/angular.js/pull/13318\n      specialAttrHolder.innerHTML = '<span ' + attrName + '>';\n      var attributes = specialAttrHolder.firstChild.attributes;\n      var attribute = attributes[0];\n      // We have to remove the attribute from its container element before we can add it to the destination element\n      attributes.removeNamedItem(attribute.name);\n      attribute.value = value;\n      element.attributes.setNamedItem(attribute);\n    }\n\n    function safeAddClass($element, className) {\n      try {\n        $element.addClass(className);\n      } catch (e) {\n        // ignore, since it means that we are trying to set class on\n        // SVG element, where class name is read-only.\n      }\n    }\n\n\n    var startSymbol = $interpolate.startSymbol(),\n        endSymbol = $interpolate.endSymbol(),\n        denormalizeTemplate = (startSymbol === '{{' && endSymbol  === '}}')\n            ? identity\n            : function denormalizeTemplate(template) {\n              return template.replace(/\\{\\{/g, startSymbol).replace(/}}/g, endSymbol);\n        },\n        NG_PREFIX_BINDING = /^ng(Attr|Prop|On)([A-Z].*)$/;\n    var MULTI_ELEMENT_DIR_RE = /^(.+)Start$/;\n\n    compile.$$addBindingInfo = debugInfoEnabled ? function $$addBindingInfo($element, binding) {\n      var bindings = $element.data('$binding') || [];\n\n      if (isArray(binding)) {\n        bindings = bindings.concat(binding);\n      } else {\n        bindings.push(binding);\n      }\n\n      $element.data('$binding', bindings);\n    } : noop;\n\n    compile.$$addBindingClass = debugInfoEnabled ? function $$addBindingClass($element) {\n      safeAddClass($element, 'ng-binding');\n    } : noop;\n\n    compile.$$addScopeInfo = debugInfoEnabled ? function $$addScopeInfo($element, scope, isolated, noTemplate) {\n      var dataName = isolated ? (noTemplate ? '$isolateScopeNoTemplate' : '$isolateScope') : '$scope';\n      $element.data(dataName, scope);\n    } : noop;\n\n    compile.$$addScopeClass = debugInfoEnabled ? function $$addScopeClass($element, isolated) {\n      safeAddClass($element, isolated ? 'ng-isolate-scope' : 'ng-scope');\n    } : noop;\n\n    compile.$$createComment = function(directiveName, comment) {\n      var content = '';\n      if (debugInfoEnabled) {\n        content = ' ' + (directiveName || '') + ': ';\n        if (comment) content += comment + ' ';\n      }\n      return window.document.createComment(content);\n    };\n\n    return compile;\n\n    //================================\n\n    function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective,\n                        previousCompileContext) {\n      if (!($compileNodes instanceof jqLite)) {\n        // jquery always rewraps, whereas we need to preserve the original selector so that we can\n        // modify it.\n        $compileNodes = jqLite($compileNodes);\n      }\n      var compositeLinkFn =\n              compileNodes($compileNodes, transcludeFn, $compileNodes,\n                           maxPriority, ignoreDirective, previousCompileContext);\n      compile.$$addScopeClass($compileNodes);\n      var namespace = null;\n      return function publicLinkFn(scope, cloneConnectFn, options) {\n        if (!$compileNodes) {\n          throw $compileMinErr('multilink', 'This element has already been linked.');\n        }\n        assertArg(scope, 'scope');\n\n        if (previousCompileContext && previousCompileContext.needsNewScope) {\n          // A parent directive did a replace and a directive on this element asked\n          // for transclusion, which caused us to lose a layer of element on which\n          // we could hold the new transclusion scope, so we will create it manually\n          // here.\n          scope = scope.$parent.$new();\n        }\n\n        options = options || {};\n        var parentBoundTranscludeFn = options.parentBoundTranscludeFn,\n          transcludeControllers = options.transcludeControllers,\n          futureParentElement = options.futureParentElement;\n\n        // When `parentBoundTranscludeFn` is passed, it is a\n        // `controllersBoundTransclude` function (it was previously passed\n        // as `transclude` to directive.link) so we must unwrap it to get\n        // its `boundTranscludeFn`\n        if (parentBoundTranscludeFn && parentBoundTranscludeFn.$$boundTransclude) {\n          parentBoundTranscludeFn = parentBoundTranscludeFn.$$boundTransclude;\n        }\n\n        if (!namespace) {\n          namespace = detectNamespaceForChildElements(futureParentElement);\n        }\n        var $linkNode;\n        if (namespace !== 'html') {\n          // When using a directive with replace:true and templateUrl the $compileNodes\n          // (or a child element inside of them)\n          // might change, so we need to recreate the namespace adapted compileNodes\n          // for call to the link function.\n          // Note: This will already clone the nodes...\n          $linkNode = jqLite(\n            wrapTemplate(namespace, jqLite('<div></div>').append($compileNodes).html())\n          );\n        } else if (cloneConnectFn) {\n          // important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart\n          // and sometimes changes the structure of the DOM.\n          $linkNode = JQLitePrototype.clone.call($compileNodes);\n        } else {\n          $linkNode = $compileNodes;\n        }\n\n        if (transcludeControllers) {\n          for (var controllerName in transcludeControllers) {\n            $linkNode.data('$' + controllerName + 'Controller', transcludeControllers[controllerName].instance);\n          }\n        }\n\n        compile.$$addScopeInfo($linkNode, scope);\n\n        if (cloneConnectFn) cloneConnectFn($linkNode, scope);\n        if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode, parentBoundTranscludeFn);\n\n        if (!cloneConnectFn) {\n          $compileNodes = compositeLinkFn = null;\n        }\n        return $linkNode;\n      };\n    }\n\n    function detectNamespaceForChildElements(parentElement) {\n      // TODO: Make this detect MathML as well...\n      var node = parentElement && parentElement[0];\n      if (!node) {\n        return 'html';\n      } else {\n        return nodeName_(node) !== 'foreignobject' && toString.call(node).match(/SVG/) ? 'svg' : 'html';\n      }\n    }\n\n    /**\n     * Compile function matches each node in nodeList against the directives. Once all directives\n     * for a particular node are collected their compile functions are executed. The compile\n     * functions return values - the linking functions - are combined into a composite linking\n     * function, which is the a linking function for the node.\n     *\n     * @param {NodeList} nodeList an array of nodes or NodeList to compile\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *        scope argument is auto-generated to the new child of the transcluded parent scope.\n     * @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then\n     *        the rootElement must be set the jqLite collection of the compile root. This is\n     *        needed so that the jqLite collection items can be replaced with widgets.\n     * @param {number=} maxPriority Max directive priority.\n     * @returns {Function} A composite linking function of all of the matched directives or null.\n     */\n    function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective,\n                            previousCompileContext) {\n      var linkFns = [],\n          // `nodeList` can be either an element's `.childNodes` (live NodeList)\n          // or a jqLite/jQuery collection or an array\n          notLiveList = isArray(nodeList) || (nodeList instanceof jqLite),\n          attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound, nodeLinkFnFound;\n\n\n      for (var i = 0; i < nodeList.length; i++) {\n        attrs = new Attributes();\n\n        // Support: IE 11 only\n        // Workaround for #11781 and #14924\n        if (msie === 11) {\n          mergeConsecutiveTextNodes(nodeList, i, notLiveList);\n        }\n\n        // We must always refer to `nodeList[i]` hereafter,\n        // since the nodes can be replaced underneath us.\n        directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined,\n                                        ignoreDirective);\n\n        nodeLinkFn = (directives.length)\n            ? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement,\n                                      null, [], [], previousCompileContext)\n            : null;\n\n        if (nodeLinkFn && nodeLinkFn.scope) {\n          compile.$$addScopeClass(attrs.$$element);\n        }\n\n        childLinkFn = (nodeLinkFn && nodeLinkFn.terminal ||\n                      !(childNodes = nodeList[i].childNodes) ||\n                      !childNodes.length)\n            ? null\n            : compileNodes(childNodes,\n                 nodeLinkFn ? (\n                  (nodeLinkFn.transcludeOnThisElement || !nodeLinkFn.templateOnThisElement)\n                     && nodeLinkFn.transclude) : transcludeFn);\n\n        if (nodeLinkFn || childLinkFn) {\n          linkFns.push(i, nodeLinkFn, childLinkFn);\n          linkFnFound = true;\n          nodeLinkFnFound = nodeLinkFnFound || nodeLinkFn;\n        }\n\n        //use the previous context only for the first element in the virtual group\n        previousCompileContext = null;\n      }\n\n      // return a linking function if we have found anything, null otherwise\n      return linkFnFound ? compositeLinkFn : null;\n\n      function compositeLinkFn(scope, nodeList, $rootElement, parentBoundTranscludeFn) {\n        var nodeLinkFn, childLinkFn, node, childScope, i, ii, idx, childBoundTranscludeFn;\n        var stableNodeList;\n\n\n        if (nodeLinkFnFound) {\n          // copy nodeList so that if a nodeLinkFn removes or adds an element at this DOM level our\n          // offsets don't get screwed up\n          var nodeListLength = nodeList.length;\n          stableNodeList = new Array(nodeListLength);\n\n          // create a sparse array by only copying the elements which have a linkFn\n          for (i = 0; i < linkFns.length; i += 3) {\n            idx = linkFns[i];\n            stableNodeList[idx] = nodeList[idx];\n          }\n        } else {\n          stableNodeList = nodeList;\n        }\n\n        for (i = 0, ii = linkFns.length; i < ii;) {\n          node = stableNodeList[linkFns[i++]];\n          nodeLinkFn = linkFns[i++];\n          childLinkFn = linkFns[i++];\n\n          if (nodeLinkFn) {\n            if (nodeLinkFn.scope) {\n              childScope = scope.$new();\n              compile.$$addScopeInfo(jqLite(node), childScope);\n            } else {\n              childScope = scope;\n            }\n\n            if (nodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(\n                  scope, nodeLinkFn.transclude, parentBoundTranscludeFn);\n\n            } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) {\n              childBoundTranscludeFn = parentBoundTranscludeFn;\n\n            } else if (!parentBoundTranscludeFn && transcludeFn) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn);\n\n            } else {\n              childBoundTranscludeFn = null;\n            }\n\n            nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn);\n\n          } else if (childLinkFn) {\n            childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn);\n          }\n        }\n      }\n    }\n\n    function mergeConsecutiveTextNodes(nodeList, idx, notLiveList) {\n      var node = nodeList[idx];\n      var parent = node.parentNode;\n      var sibling;\n\n      if (node.nodeType !== NODE_TYPE_TEXT) {\n        return;\n      }\n\n      while (true) {\n        sibling = parent ? node.nextSibling : nodeList[idx + 1];\n        if (!sibling || sibling.nodeType !== NODE_TYPE_TEXT) {\n          break;\n        }\n\n        node.nodeValue = node.nodeValue + sibling.nodeValue;\n\n        if (sibling.parentNode) {\n          sibling.parentNode.removeChild(sibling);\n        }\n        if (notLiveList && sibling === nodeList[idx + 1]) {\n          nodeList.splice(idx + 1, 1);\n        }\n      }\n    }\n\n    function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn) {\n      function boundTranscludeFn(transcludedScope, cloneFn, controllers, futureParentElement, containingScope) {\n\n        if (!transcludedScope) {\n          transcludedScope = scope.$new(false, containingScope);\n          transcludedScope.$$transcluded = true;\n        }\n\n        return transcludeFn(transcludedScope, cloneFn, {\n          parentBoundTranscludeFn: previousBoundTranscludeFn,\n          transcludeControllers: controllers,\n          futureParentElement: futureParentElement\n        });\n      }\n\n      // We need  to attach the transclusion slots onto the `boundTranscludeFn`\n      // so that they are available inside the `controllersBoundTransclude` function\n      var boundSlots = boundTranscludeFn.$$slots = createMap();\n      for (var slotName in transcludeFn.$$slots) {\n        if (transcludeFn.$$slots[slotName]) {\n          boundSlots[slotName] = createBoundTranscludeFn(scope, transcludeFn.$$slots[slotName], previousBoundTranscludeFn);\n        } else {\n          boundSlots[slotName] = null;\n        }\n      }\n\n      return boundTranscludeFn;\n    }\n\n    /**\n     * Looks for directives on the given node and adds them to the directive collection which is\n     * sorted.\n     *\n     * @param node Node to search.\n     * @param directives An array to which the directives are added to. This array is sorted before\n     *        the function returns.\n     * @param attrs The shared attrs object which is used to populate the normalized attributes.\n     * @param {number=} maxPriority Max directive priority.\n     */\n    function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n      var nodeType = node.nodeType,\n          attrsMap = attrs.$attr,\n          match,\n          nodeName,\n          className;\n\n      switch (nodeType) {\n        case NODE_TYPE_ELEMENT: /* Element */\n\n          nodeName = nodeName_(node);\n\n          // use the node name: <directive>\n          addDirective(directives,\n              directiveNormalize(nodeName), 'E', maxPriority, ignoreDirective);\n\n          // iterate over the attributes\n          for (var attr, name, nName, value, ngPrefixMatch, nAttrs = node.attributes,\n                   j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) {\n            var attrStartName = false;\n            var attrEndName = false;\n\n            var isNgAttr = false, isNgProp = false, isNgEvent = false;\n            var multiElementMatch;\n\n            attr = nAttrs[j];\n            name = attr.name;\n            value = attr.value;\n\n            nName = directiveNormalize(name.toLowerCase());\n\n            // Support ng-attr-*, ng-prop-* and ng-on-*\n            if ((ngPrefixMatch = nName.match(NG_PREFIX_BINDING))) {\n              isNgAttr = ngPrefixMatch[1] === 'Attr';\n              isNgProp = ngPrefixMatch[1] === 'Prop';\n              isNgEvent = ngPrefixMatch[1] === 'On';\n\n              // Normalize the non-prefixed name\n              name = name.replace(PREFIX_REGEXP, '')\n                .toLowerCase()\n                .substr(4 + ngPrefixMatch[1].length).replace(/_(.)/g, function(match, letter) {\n                  return letter.toUpperCase();\n                });\n\n            // Support *-start / *-end multi element directives\n            } else if ((multiElementMatch = nName.match(MULTI_ELEMENT_DIR_RE)) && directiveIsMultiElement(multiElementMatch[1])) {\n              attrStartName = name;\n              attrEndName = name.substr(0, name.length - 5) + 'end';\n              name = name.substr(0, name.length - 6);\n            }\n\n            if (isNgProp || isNgEvent) {\n              attrs[nName] = value;\n              attrsMap[nName] = attr.name;\n\n              if (isNgProp) {\n                addPropertyDirective(node, directives, nName, name);\n              } else {\n                addEventDirective(directives, nName, name);\n              }\n            } else {\n              // Update nName for cases where a prefix was removed\n              // NOTE: the .toLowerCase() is unnecessary and causes https://github.com/angular/angular.js/issues/16624 for ng-attr-*\n              nName = directiveNormalize(name.toLowerCase());\n              attrsMap[nName] = name;\n\n              if (isNgAttr || !attrs.hasOwnProperty(nName)) {\n                attrs[nName] = value;\n                if (getBooleanAttrName(node, nName)) {\n                  attrs[nName] = true; // presence means true\n                }\n              }\n\n              addAttrInterpolateDirective(node, directives, value, nName, isNgAttr);\n              addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName,\n                            attrEndName);\n            }\n          }\n\n          if (nodeName === 'input' && node.getAttribute('type') === 'hidden') {\n            // Hidden input elements can have strange behaviour when navigating back to the page\n            // This tells the browser not to try to cache and reinstate previous values\n            node.setAttribute('autocomplete', 'off');\n          }\n\n          // use class as directive\n          if (!cssClassDirectivesEnabled) break;\n          className = node.className;\n          if (isObject(className)) {\n              // Maybe SVGAnimatedString\n              className = className.animVal;\n          }\n          if (isString(className) && className !== '') {\n            while ((match = CLASS_DIRECTIVE_REGEXP.exec(className))) {\n              nName = directiveNormalize(match[2]);\n              if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) {\n                attrs[nName] = trim(match[3]);\n              }\n              className = className.substr(match.index + match[0].length);\n            }\n          }\n          break;\n        case NODE_TYPE_TEXT: /* Text Node */\n          addTextInterpolateDirective(directives, node.nodeValue);\n          break;\n        case NODE_TYPE_COMMENT: /* Comment */\n          if (!commentDirectivesEnabled) break;\n          collectCommentDirectives(node, directives, attrs, maxPriority, ignoreDirective);\n          break;\n      }\n\n      directives.sort(byPriority);\n      return directives;\n    }\n\n    function collectCommentDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n      // function created because of performance, try/catch disables\n      // the optimization of the whole function #14848\n      try {\n        var match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue);\n        if (match) {\n          var nName = directiveNormalize(match[1]);\n          if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) {\n            attrs[nName] = trim(match[2]);\n          }\n        }\n      } catch (e) {\n        // turns out that under some circumstances IE9 throws errors when one attempts to read\n        // comment's node value.\n        // Just ignore it and continue. (Can't seem to reproduce in test case.)\n      }\n    }\n\n    /**\n     * Given a node with a directive-start it collects all of the siblings until it finds\n     * directive-end.\n     * @param node\n     * @param attrStart\n     * @param attrEnd\n     * @returns {*}\n     */\n    function groupScan(node, attrStart, attrEnd) {\n      var nodes = [];\n      var depth = 0;\n      if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) {\n        do {\n          if (!node) {\n            throw $compileMinErr('uterdir',\n                      'Unterminated attribute, found \\'{0}\\' but no matching \\'{1}\\' found.',\n                      attrStart, attrEnd);\n          }\n          if (node.nodeType === NODE_TYPE_ELEMENT) {\n            if (node.hasAttribute(attrStart)) depth++;\n            if (node.hasAttribute(attrEnd)) depth--;\n          }\n          nodes.push(node);\n          node = node.nextSibling;\n        } while (depth > 0);\n      } else {\n        nodes.push(node);\n      }\n\n      return jqLite(nodes);\n    }\n\n    /**\n     * Wrapper for linking function which converts normal linking function into a grouped\n     * linking function.\n     * @param linkFn\n     * @param attrStart\n     * @param attrEnd\n     * @returns {Function}\n     */\n    function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {\n      return function groupedElementsLink(scope, element, attrs, controllers, transcludeFn) {\n        element = groupScan(element[0], attrStart, attrEnd);\n        return linkFn(scope, element, attrs, controllers, transcludeFn);\n      };\n    }\n\n    /**\n     * A function generator that is used to support both eager and lazy compilation\n     * linking function.\n     * @param eager\n     * @param $compileNodes\n     * @param transcludeFn\n     * @param maxPriority\n     * @param ignoreDirective\n     * @param previousCompileContext\n     * @returns {Function}\n     */\n    function compilationGenerator(eager, $compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext) {\n      var compiled;\n\n      if (eager) {\n        return compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext);\n      }\n      return /** @this */ function lazyCompilation() {\n        if (!compiled) {\n          compiled = compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext);\n\n          // Null out all of these references in order to make them eligible for garbage collection\n          // since this is a potentially long lived closure\n          $compileNodes = transcludeFn = previousCompileContext = null;\n        }\n        return compiled.apply(this, arguments);\n      };\n    }\n\n    /**\n     * Once the directives have been collected, their compile functions are executed. This method\n     * is responsible for inlining directive templates as well as terminating the application\n     * of the directives if the terminal directive has been reached.\n     *\n     * @param {Array} directives Array of collected directives to execute their compile function.\n     *        this needs to be pre-sorted by priority order.\n     * @param {Node} compileNode The raw DOM node to apply the compile functions to\n     * @param {Object} templateAttrs The shared attribute function\n     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n     *                                                  scope argument is auto-generated to the new\n     *                                                  child of the transcluded parent scope.\n     * @param {JQLite} jqCollection If we are working on the root of the compile tree then this\n     *                              argument has the root jqLite array so that we can replace nodes\n     *                              on it.\n     * @param {Object=} originalReplaceDirective An optional directive that will be ignored when\n     *                                           compiling the transclusion.\n     * @param {Array.<Function>} preLinkFns\n     * @param {Array.<Function>} postLinkFns\n     * @param {Object} previousCompileContext Context used for previous compilation of the current\n     *                                        node\n     * @returns {Function} linkFn\n     */\n    function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn,\n                                   jqCollection, originalReplaceDirective, preLinkFns, postLinkFns,\n                                   previousCompileContext) {\n      previousCompileContext = previousCompileContext || {};\n\n      var terminalPriority = -Number.MAX_VALUE,\n          newScopeDirective = previousCompileContext.newScopeDirective,\n          controllerDirectives = previousCompileContext.controllerDirectives,\n          newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective,\n          templateDirective = previousCompileContext.templateDirective,\n          nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective,\n          hasTranscludeDirective = false,\n          hasTemplate = false,\n          hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective,\n          $compileNode = templateAttrs.$$element = jqLite(compileNode),\n          directive,\n          directiveName,\n          $template,\n          replaceDirective = originalReplaceDirective,\n          childTranscludeFn = transcludeFn,\n          linkFn,\n          didScanForMultipleTransclusion = false,\n          mightHaveMultipleTransclusionError = false,\n          directiveValue;\n\n      // executes all directives on the current element\n      for (var i = 0, ii = directives.length; i < ii; i++) {\n        directive = directives[i];\n        var attrStart = directive.$$start;\n        var attrEnd = directive.$$end;\n\n        // collect multiblock sections\n        if (attrStart) {\n          $compileNode = groupScan(compileNode, attrStart, attrEnd);\n        }\n        $template = undefined;\n\n        if (terminalPriority > directive.priority) {\n          break; // prevent further processing of directives\n        }\n\n        directiveValue = directive.scope;\n\n        if (directiveValue) {\n\n          // skip the check for directives with async templates, we'll check the derived sync\n          // directive when the template arrives\n          if (!directive.templateUrl) {\n            if (isObject(directiveValue)) {\n              // This directive is trying to add an isolated scope.\n              // Check that there is no scope of any kind already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective || newScopeDirective,\n                                directive, $compileNode);\n              newIsolateScopeDirective = directive;\n            } else {\n              // This directive is trying to add a child scope.\n              // Check that there is no isolated scope already\n              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive,\n                                $compileNode);\n            }\n          }\n\n          newScopeDirective = newScopeDirective || directive;\n        }\n\n        directiveName = directive.name;\n\n        // If we encounter a condition that can result in transclusion on the directive,\n        // then scan ahead in the remaining directives for others that may cause a multiple\n        // transclusion error to be thrown during the compilation process.  If a matching directive\n        // is found, then we know that when we encounter a transcluded directive, we need to eagerly\n        // compile the `transclude` function rather than doing it lazily in order to throw\n        // exceptions at the correct time\n        if (!didScanForMultipleTransclusion && ((directive.replace && (directive.templateUrl || directive.template))\n            || (directive.transclude && !directive.$$tlb))) {\n                var candidateDirective;\n\n                for (var scanningIndex = i + 1; (candidateDirective = directives[scanningIndex++]);) {\n                    if ((candidateDirective.transclude && !candidateDirective.$$tlb)\n                        || (candidateDirective.replace && (candidateDirective.templateUrl || candidateDirective.template))) {\n                        mightHaveMultipleTransclusionError = true;\n                        break;\n                    }\n                }\n\n                didScanForMultipleTransclusion = true;\n        }\n\n        if (!directive.templateUrl && directive.controller) {\n          controllerDirectives = controllerDirectives || createMap();\n          assertNoDuplicate('\\'' + directiveName + '\\' controller',\n              controllerDirectives[directiveName], directive, $compileNode);\n          controllerDirectives[directiveName] = directive;\n        }\n\n        directiveValue = directive.transclude;\n\n        if (directiveValue) {\n          hasTranscludeDirective = true;\n\n          // Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion.\n          // This option should only be used by directives that know how to safely handle element transclusion,\n          // where the transcluded nodes are added or replaced after linking.\n          if (!directive.$$tlb) {\n            assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode);\n            nonTlbTranscludeDirective = directive;\n          }\n\n          if (directiveValue === 'element') {\n            hasElementTranscludeDirective = true;\n            terminalPriority = directive.priority;\n            $template = $compileNode;\n            $compileNode = templateAttrs.$$element =\n                jqLite(compile.$$createComment(directiveName, templateAttrs[directiveName]));\n            compileNode = $compileNode[0];\n            replaceWith(jqCollection, sliceArgs($template), compileNode);\n\n            childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, terminalPriority,\n                                        replaceDirective && replaceDirective.name, {\n                                          // Don't pass in:\n                                          // - controllerDirectives - otherwise we'll create duplicates controllers\n                                          // - newIsolateScopeDirective or templateDirective - combining templates with\n                                          //   element transclusion doesn't make sense.\n                                          //\n                                          // We need only nonTlbTranscludeDirective so that we prevent putting transclusion\n                                          // on the same element more than once.\n                                          nonTlbTranscludeDirective: nonTlbTranscludeDirective\n                                        });\n          } else {\n\n            var slots = createMap();\n\n            if (!isObject(directiveValue)) {\n              $template = jqLite(jqLiteClone(compileNode)).contents();\n            } else {\n\n              // We have transclusion slots,\n              // collect them up, compile them and store their transclusion functions\n              $template = window.document.createDocumentFragment();\n\n              var slotMap = createMap();\n              var filledSlots = createMap();\n\n              // Parse the element selectors\n              forEach(directiveValue, function(elementSelector, slotName) {\n                // If an element selector starts with a ? then it is optional\n                var optional = (elementSelector.charAt(0) === '?');\n                elementSelector = optional ? elementSelector.substring(1) : elementSelector;\n\n                slotMap[elementSelector] = slotName;\n\n                // We explicitly assign `null` since this implies that a slot was defined but not filled.\n                // Later when calling boundTransclusion functions with a slot name we only error if the\n                // slot is `undefined`\n                slots[slotName] = null;\n\n                // filledSlots contains `true` for all slots that are either optional or have been\n                // filled. This is used to check that we have not missed any required slots\n                filledSlots[slotName] = optional;\n              });\n\n              // Add the matching elements into their slot\n              forEach($compileNode.contents(), function(node) {\n                var slotName = slotMap[directiveNormalize(nodeName_(node))];\n                if (slotName) {\n                  filledSlots[slotName] = true;\n                  slots[slotName] = slots[slotName] || window.document.createDocumentFragment();\n                  slots[slotName].appendChild(node);\n                } else {\n                  $template.appendChild(node);\n                }\n              });\n\n              // Check for required slots that were not filled\n              forEach(filledSlots, function(filled, slotName) {\n                if (!filled) {\n                  throw $compileMinErr('reqslot', 'Required transclusion slot `{0}` was not filled.', slotName);\n                }\n              });\n\n              for (var slotName in slots) {\n                if (slots[slotName]) {\n                  // Only define a transclusion function if the slot was filled\n                  var slotCompileNodes = jqLite(slots[slotName].childNodes);\n                  slots[slotName] = compilationGenerator(mightHaveMultipleTransclusionError, slotCompileNodes, transcludeFn);\n                }\n              }\n\n              $template = jqLite($template.childNodes);\n            }\n\n            $compileNode.empty(); // clear contents\n            childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, undefined,\n                undefined, { needsNewScope: directive.$$isolateScope || directive.$$newScope});\n            childTranscludeFn.$$slots = slots;\n          }\n        }\n\n        if (directive.template) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          directiveValue = (isFunction(directive.template))\n              ? directive.template($compileNode, templateAttrs)\n              : directive.template;\n\n          directiveValue = denormalizeTemplate(directiveValue);\n\n          if (directive.replace) {\n            replaceDirective = directive;\n            if (jqLiteIsTextNode(directiveValue)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(directive.templateNamespace, trim(directiveValue)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length !== 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  'Template for directive \\'{0}\\' must have exactly one root element. {1}',\n                  directiveName, '');\n            }\n\n            replaceWith(jqCollection, $compileNode, compileNode);\n\n            var newTemplateAttrs = {$attr: {}};\n\n            // combine directives from the original node and from the template:\n            // - take the array of directives for this element\n            // - split it into two parts, those that already applied (processed) and those that weren't (unprocessed)\n            // - collect directives from the template and sort them by priority\n            // - combine directives as: processed + template + unprocessed\n            var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs);\n            var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1));\n\n            if (newIsolateScopeDirective || newScopeDirective) {\n              // The original directive caused the current element to be replaced but this element\n              // also needs to have a new scope, so we need to tell the template directives\n              // that they would need to get their scope from further up, if they require transclusion\n              markDirectiveScope(templateDirectives, newIsolateScopeDirective, newScopeDirective);\n            }\n            directives = directives.concat(templateDirectives).concat(unprocessedDirectives);\n            mergeTemplateAttributes(templateAttrs, newTemplateAttrs);\n\n            ii = directives.length;\n          } else {\n            $compileNode.html(directiveValue);\n          }\n        }\n\n        if (directive.templateUrl) {\n          hasTemplate = true;\n          assertNoDuplicate('template', templateDirective, directive, $compileNode);\n          templateDirective = directive;\n\n          if (directive.replace) {\n            replaceDirective = directive;\n          }\n\n          // eslint-disable-next-line no-func-assign\n          nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode,\n              templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, {\n                controllerDirectives: controllerDirectives,\n                newScopeDirective: (newScopeDirective !== directive) && newScopeDirective,\n                newIsolateScopeDirective: newIsolateScopeDirective,\n                templateDirective: templateDirective,\n                nonTlbTranscludeDirective: nonTlbTranscludeDirective\n              });\n          ii = directives.length;\n        } else if (directive.compile) {\n          try {\n            linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn);\n            var context = directive.$$originalDirective || directive;\n            if (isFunction(linkFn)) {\n              addLinkFns(null, bind(context, linkFn), attrStart, attrEnd);\n            } else if (linkFn) {\n              addLinkFns(bind(context, linkFn.pre), bind(context, linkFn.post), attrStart, attrEnd);\n            }\n          } catch (e) {\n            $exceptionHandler(e, startingTag($compileNode));\n          }\n        }\n\n        if (directive.terminal) {\n          nodeLinkFn.terminal = true;\n          terminalPriority = Math.max(terminalPriority, directive.priority);\n        }\n\n      }\n\n      nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true;\n      nodeLinkFn.transcludeOnThisElement = hasTranscludeDirective;\n      nodeLinkFn.templateOnThisElement = hasTemplate;\n      nodeLinkFn.transclude = childTranscludeFn;\n\n      previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective;\n\n      // might be normal or delayed nodeLinkFn depending on if templateUrl is present\n      return nodeLinkFn;\n\n      ////////////////////\n\n      function addLinkFns(pre, post, attrStart, attrEnd) {\n        if (pre) {\n          if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd);\n          pre.require = directive.require;\n          pre.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            pre = cloneAndAnnotateFn(pre, {isolateScope: true});\n          }\n          preLinkFns.push(pre);\n        }\n        if (post) {\n          if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd);\n          post.require = directive.require;\n          post.directiveName = directiveName;\n          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n            post = cloneAndAnnotateFn(post, {isolateScope: true});\n          }\n          postLinkFns.push(post);\n        }\n      }\n\n      function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) {\n        var i, ii, linkFn, isolateScope, controllerScope, elementControllers, transcludeFn, $element,\n            attrs, scopeBindingInfo;\n\n        if (compileNode === linkNode) {\n          attrs = templateAttrs;\n          $element = templateAttrs.$$element;\n        } else {\n          $element = jqLite(linkNode);\n          attrs = new Attributes($element, templateAttrs);\n        }\n\n        controllerScope = scope;\n        if (newIsolateScopeDirective) {\n          isolateScope = scope.$new(true);\n        } else if (newScopeDirective) {\n          controllerScope = scope.$parent;\n        }\n\n        if (boundTranscludeFn) {\n          // track `boundTranscludeFn` so it can be unwrapped if `transcludeFn`\n          // is later passed as `parentBoundTranscludeFn` to `publicLinkFn`\n          transcludeFn = controllersBoundTransclude;\n          transcludeFn.$$boundTransclude = boundTranscludeFn;\n          // expose the slots on the `$transclude` function\n          transcludeFn.isSlotFilled = function(slotName) {\n            return !!boundTranscludeFn.$$slots[slotName];\n          };\n        }\n\n        if (controllerDirectives) {\n          elementControllers = setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective);\n        }\n\n        if (newIsolateScopeDirective) {\n          // Initialize isolate scope bindings for new isolate scope directive.\n          compile.$$addScopeInfo($element, isolateScope, true, !(templateDirective && (templateDirective === newIsolateScopeDirective ||\n              templateDirective === newIsolateScopeDirective.$$originalDirective)));\n          compile.$$addScopeClass($element, true);\n          isolateScope.$$isolateBindings =\n              newIsolateScopeDirective.$$isolateBindings;\n          scopeBindingInfo = initializeDirectiveBindings(scope, attrs, isolateScope,\n                                        isolateScope.$$isolateBindings,\n                                        newIsolateScopeDirective);\n          if (scopeBindingInfo.removeWatches) {\n            isolateScope.$on('$destroy', scopeBindingInfo.removeWatches);\n          }\n        }\n\n        // Initialize bindToController bindings\n        for (var name in elementControllers) {\n          var controllerDirective = controllerDirectives[name];\n          var controller = elementControllers[name];\n          var bindings = controllerDirective.$$bindings.bindToController;\n\n          controller.instance = controller();\n          $element.data('$' + controllerDirective.name + 'Controller', controller.instance);\n          controller.bindingInfo =\n            initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);\n          }\n\n        // Bind the required controllers to the controller, if `require` is an object and `bindToController` is truthy\n        forEach(controllerDirectives, function(controllerDirective, name) {\n          var require = controllerDirective.require;\n          if (controllerDirective.bindToController && !isArray(require) && isObject(require)) {\n            extend(elementControllers[name].instance, getControllers(name, require, $element, elementControllers));\n          }\n        });\n\n        // Handle the init and destroy lifecycle hooks on all controllers that have them\n        forEach(elementControllers, function(controller) {\n          var controllerInstance = controller.instance;\n          if (isFunction(controllerInstance.$onChanges)) {\n            try {\n              controllerInstance.$onChanges(controller.bindingInfo.initialChanges);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          if (isFunction(controllerInstance.$onInit)) {\n            try {\n              controllerInstance.$onInit();\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          if (isFunction(controllerInstance.$doCheck)) {\n            controllerScope.$watch(function() { controllerInstance.$doCheck(); });\n            controllerInstance.$doCheck();\n          }\n          if (isFunction(controllerInstance.$onDestroy)) {\n            controllerScope.$on('$destroy', function callOnDestroyHook() {\n              controllerInstance.$onDestroy();\n            });\n          }\n        });\n\n        // PRELINKING\n        for (i = 0, ii = preLinkFns.length; i < ii; i++) {\n          linkFn = preLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // RECURSION\n        // We only pass the isolate scope, if the isolate directive has a template,\n        // otherwise the child elements do not belong to the isolate directive.\n        var scopeToChild = scope;\n        if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) {\n          scopeToChild = isolateScope;\n        }\n        if (childLinkFn) {\n          childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn);\n        }\n\n        // POSTLINKING\n        for (i = postLinkFns.length - 1; i >= 0; i--) {\n          linkFn = postLinkFns[i];\n          invokeLinkFn(linkFn,\n              linkFn.isolateScope ? isolateScope : scope,\n              $element,\n              attrs,\n              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n              transcludeFn\n          );\n        }\n\n        // Trigger $postLink lifecycle hooks\n        forEach(elementControllers, function(controller) {\n          var controllerInstance = controller.instance;\n          if (isFunction(controllerInstance.$postLink)) {\n            controllerInstance.$postLink();\n          }\n        });\n\n        // This is the function that is injected as `$transclude`.\n        // Note: all arguments are optional!\n        function controllersBoundTransclude(scope, cloneAttachFn, futureParentElement, slotName) {\n          var transcludeControllers;\n          // No scope passed in:\n          if (!isScope(scope)) {\n            slotName = futureParentElement;\n            futureParentElement = cloneAttachFn;\n            cloneAttachFn = scope;\n            scope = undefined;\n          }\n\n          if (hasElementTranscludeDirective) {\n            transcludeControllers = elementControllers;\n          }\n          if (!futureParentElement) {\n            futureParentElement = hasElementTranscludeDirective ? $element.parent() : $element;\n          }\n          if (slotName) {\n            // slotTranscludeFn can be one of three things:\n            //  * a transclude function - a filled slot\n            //  * `null` - an optional slot that was not filled\n            //  * `undefined` - a slot that was not declared (i.e. invalid)\n            var slotTranscludeFn = boundTranscludeFn.$$slots[slotName];\n            if (slotTranscludeFn) {\n              return slotTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);\n            } else if (isUndefined(slotTranscludeFn)) {\n              throw $compileMinErr('noslot',\n               'No parent directive that requires a transclusion with slot name \"{0}\". ' +\n               'Element: {1}',\n               slotName, startingTag($element));\n            }\n          } else {\n            return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);\n          }\n        }\n      }\n    }\n\n    function getControllers(directiveName, require, $element, elementControllers) {\n      var value;\n\n      if (isString(require)) {\n        var match = require.match(REQUIRE_PREFIX_REGEXP);\n        var name = require.substring(match[0].length);\n        var inheritType = match[1] || match[3];\n        var optional = match[2] === '?';\n\n        //If only parents then start at the parent element\n        if (inheritType === '^^') {\n          $element = $element.parent();\n        //Otherwise attempt getting the controller from elementControllers in case\n        //the element is transcluded (and has no data) and to avoid .data if possible\n        } else {\n          value = elementControllers && elementControllers[name];\n          value = value && value.instance;\n        }\n\n        if (!value) {\n          var dataName = '$' + name + 'Controller';\n\n          if (inheritType === '^^' && $element[0] && $element[0].nodeType === NODE_TYPE_DOCUMENT) {\n            // inheritedData() uses the documentElement when it finds the document, so we would\n            // require from the element itself.\n            value = null;\n          } else {\n            value = inheritType ? $element.inheritedData(dataName) : $element.data(dataName);\n          }\n        }\n\n        if (!value && !optional) {\n          throw $compileMinErr('ctreq',\n              'Controller \\'{0}\\', required by directive \\'{1}\\', can\\'t be found!',\n              name, directiveName);\n        }\n      } else if (isArray(require)) {\n        value = [];\n        for (var i = 0, ii = require.length; i < ii; i++) {\n          value[i] = getControllers(directiveName, require[i], $element, elementControllers);\n        }\n      } else if (isObject(require)) {\n        value = {};\n        forEach(require, function(controller, property) {\n          value[property] = getControllers(directiveName, controller, $element, elementControllers);\n        });\n      }\n\n      return value || null;\n    }\n\n    function setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective) {\n      var elementControllers = createMap();\n      for (var controllerKey in controllerDirectives) {\n        var directive = controllerDirectives[controllerKey];\n        var locals = {\n          $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope,\n          $element: $element,\n          $attrs: attrs,\n          $transclude: transcludeFn\n        };\n\n        var controller = directive.controller;\n        if (controller === '@') {\n          controller = attrs[directive.name];\n        }\n\n        var controllerInstance = $controller(controller, locals, true, directive.controllerAs);\n\n        // For directives with element transclusion the element is a comment.\n        // In this case .data will not attach any data.\n        // Instead, we save the controllers for the element in a local hash and attach to .data\n        // later, once we have the actual element.\n        elementControllers[directive.name] = controllerInstance;\n        $element.data('$' + directive.name + 'Controller', controllerInstance.instance);\n      }\n      return elementControllers;\n    }\n\n    // Depending upon the context in which a directive finds itself it might need to have a new isolated\n    // or child scope created. For instance:\n    // * if the directive has been pulled into a template because another directive with a higher priority\n    // asked for element transclusion\n    // * if the directive itself asks for transclusion but it is at the root of a template and the original\n    // element was replaced. See https://github.com/angular/angular.js/issues/12936\n    function markDirectiveScope(directives, isolateScope, newScope) {\n      for (var j = 0, jj = directives.length; j < jj; j++) {\n        directives[j] = inherit(directives[j], {$$isolateScope: isolateScope, $$newScope: newScope});\n      }\n    }\n\n    /**\n     * looks up the directive and decorates it with exception handling and proper parameters. We\n     * call this the boundDirective.\n     *\n     * @param {string} name name of the directive to look up.\n     * @param {string} location The directive must be found in specific format.\n     *   String containing any of theses characters:\n     *\n     *   * `E`: element name\n     *   * `A': attribute\n     *   * `C`: class\n     *   * `M`: comment\n     * @returns {boolean} true if directive was added.\n     */\n    function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName,\n                          endAttrName) {\n      if (name === ignoreDirective) return null;\n      var match = null;\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          directive = directives[i];\n          if ((isUndefined(maxPriority) || maxPriority > directive.priority) &&\n               directive.restrict.indexOf(location) !== -1) {\n            if (startAttrName) {\n              directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName});\n            }\n            if (!directive.$$bindings) {\n              var bindings = directive.$$bindings =\n                  parseDirectiveBindings(directive, directive.name);\n              if (isObject(bindings.isolateScope)) {\n                directive.$$isolateBindings = bindings.isolateScope;\n              }\n            }\n            tDirectives.push(directive);\n            match = directive;\n          }\n        }\n      }\n      return match;\n    }\n\n\n    /**\n     * looks up the directive and returns true if it is a multi-element directive,\n     * and therefore requires DOM nodes between -start and -end markers to be grouped\n     * together.\n     *\n     * @param {string} name name of the directive to look up.\n     * @returns true if directive was registered as multi-element.\n     */\n    function directiveIsMultiElement(name) {\n      if (hasDirectives.hasOwnProperty(name)) {\n        for (var directive, directives = $injector.get(name + Suffix),\n            i = 0, ii = directives.length; i < ii; i++) {\n          directive = directives[i];\n          if (directive.multiElement) {\n            return true;\n          }\n        }\n      }\n      return false;\n    }\n\n    /**\n     * When the element is replaced with HTML template then the new attributes\n     * on the template need to be merged with the existing attributes in the DOM.\n     * The desired effect is to have both of the attributes present.\n     *\n     * @param {object} dst destination attributes (original DOM)\n     * @param {object} src source attributes (from the directive template)\n     */\n    function mergeTemplateAttributes(dst, src) {\n      var srcAttr = src.$attr,\n          dstAttr = dst.$attr;\n\n      // reapply the old attributes to the new element\n      forEach(dst, function(value, key) {\n        if (key.charAt(0) !== '$') {\n          if (src[key] && src[key] !== value) {\n            if (value.length) {\n              value += (key === 'style' ? ';' : ' ') + src[key];\n            } else {\n              value = src[key];\n            }\n          }\n          dst.$set(key, value, true, srcAttr[key]);\n        }\n      });\n\n      // copy the new attributes on the old attrs object\n      forEach(src, function(value, key) {\n        // Check if we already set this attribute in the loop above.\n        // `dst` will never contain hasOwnProperty as DOM parser won't let it.\n        // You will get an \"InvalidCharacterError: DOM Exception 5\" error if you\n        // have an attribute like \"has-own-property\" or \"data-has-own-property\", etc.\n        if (!dst.hasOwnProperty(key) && key.charAt(0) !== '$') {\n          dst[key] = value;\n\n          if (key !== 'class' && key !== 'style') {\n            dstAttr[key] = srcAttr[key];\n          }\n        }\n      });\n    }\n\n\n    function compileTemplateUrl(directives, $compileNode, tAttrs,\n        $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {\n      var linkQueue = [],\n          afterTemplateNodeLinkFn,\n          afterTemplateChildLinkFn,\n          beforeTemplateCompileNode = $compileNode[0],\n          origAsyncDirective = directives.shift(),\n          derivedSyncDirective = inherit(origAsyncDirective, {\n            templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective\n          }),\n          templateUrl = (isFunction(origAsyncDirective.templateUrl))\n              ? origAsyncDirective.templateUrl($compileNode, tAttrs)\n              : origAsyncDirective.templateUrl,\n          templateNamespace = origAsyncDirective.templateNamespace;\n\n      $compileNode.empty();\n\n      $templateRequest(templateUrl)\n        .then(function(content) {\n          var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn;\n\n          content = denormalizeTemplate(content);\n\n          if (origAsyncDirective.replace) {\n            if (jqLiteIsTextNode(content)) {\n              $template = [];\n            } else {\n              $template = removeComments(wrapTemplate(templateNamespace, trim(content)));\n            }\n            compileNode = $template[0];\n\n            if ($template.length !== 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n              throw $compileMinErr('tplrt',\n                  'Template for directive \\'{0}\\' must have exactly one root element. {1}',\n                  origAsyncDirective.name, templateUrl);\n            }\n\n            tempTemplateAttrs = {$attr: {}};\n            replaceWith($rootElement, $compileNode, compileNode);\n            var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs);\n\n            if (isObject(origAsyncDirective.scope)) {\n              // the original directive that caused the template to be loaded async required\n              // an isolate scope\n              markDirectiveScope(templateDirectives, true);\n            }\n            directives = templateDirectives.concat(directives);\n            mergeTemplateAttributes(tAttrs, tempTemplateAttrs);\n          } else {\n            compileNode = beforeTemplateCompileNode;\n            $compileNode.html(content);\n          }\n\n          directives.unshift(derivedSyncDirective);\n\n          afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs,\n              childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns,\n              previousCompileContext);\n          forEach($rootElement, function(node, i) {\n            if (node === compileNode) {\n              $rootElement[i] = $compileNode[0];\n            }\n          });\n          afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn);\n\n          while (linkQueue.length) {\n            var scope = linkQueue.shift(),\n                beforeTemplateLinkNode = linkQueue.shift(),\n                linkRootElement = linkQueue.shift(),\n                boundTranscludeFn = linkQueue.shift(),\n                linkNode = $compileNode[0];\n\n            if (scope.$$destroyed) continue;\n\n            if (beforeTemplateLinkNode !== beforeTemplateCompileNode) {\n              var oldClasses = beforeTemplateLinkNode.className;\n\n              if (!(previousCompileContext.hasElementTranscludeDirective &&\n                  origAsyncDirective.replace)) {\n                // it was cloned therefore we have to clone as well.\n                linkNode = jqLiteClone(compileNode);\n              }\n              replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode);\n\n              // Copy in CSS classes from original node\n              safeAddClass(jqLite(linkNode), oldClasses);\n            }\n            if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n              childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n            } else {\n              childBoundTranscludeFn = boundTranscludeFn;\n            }\n            afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement,\n              childBoundTranscludeFn);\n          }\n          linkQueue = null;\n        }).catch(function(error) {\n          if (isError(error)) {\n            $exceptionHandler(error);\n          }\n        });\n\n      return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) {\n        var childBoundTranscludeFn = boundTranscludeFn;\n        if (scope.$$destroyed) return;\n        if (linkQueue) {\n          linkQueue.push(scope,\n                         node,\n                         rootElement,\n                         childBoundTranscludeFn);\n        } else {\n          if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n            childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n          }\n          afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn);\n        }\n      };\n    }\n\n\n    /**\n     * Sorting function for bound directives.\n     */\n    function byPriority(a, b) {\n      var diff = b.priority - a.priority;\n      if (diff !== 0) return diff;\n      if (a.name !== b.name) return (a.name < b.name) ? -1 : 1;\n      return a.index - b.index;\n    }\n\n    function assertNoDuplicate(what, previousDirective, directive, element) {\n\n      function wrapModuleNameIfDefined(moduleName) {\n        return moduleName ?\n          (' (module: ' + moduleName + ')') :\n          '';\n      }\n\n      if (previousDirective) {\n        throw $compileMinErr('multidir', 'Multiple directives [{0}{1}, {2}{3}] asking for {4} on: {5}',\n            previousDirective.name, wrapModuleNameIfDefined(previousDirective.$$moduleName),\n            directive.name, wrapModuleNameIfDefined(directive.$$moduleName), what, startingTag(element));\n      }\n    }\n\n\n    function addTextInterpolateDirective(directives, text) {\n      var interpolateFn = $interpolate(text, true);\n      if (interpolateFn) {\n        directives.push({\n          priority: 0,\n          compile: function textInterpolateCompileFn(templateNode) {\n            var templateNodeParent = templateNode.parent(),\n                hasCompileParent = !!templateNodeParent.length;\n\n            // When transcluding a template that has bindings in the root\n            // we don't have a parent and thus need to add the class during linking fn.\n            if (hasCompileParent) compile.$$addBindingClass(templateNodeParent);\n\n            return function textInterpolateLinkFn(scope, node) {\n              var parent = node.parent();\n              if (!hasCompileParent) compile.$$addBindingClass(parent);\n              compile.$$addBindingInfo(parent, interpolateFn.expressions);\n              scope.$watch(interpolateFn, function interpolateFnWatchAction(value) {\n                node[0].nodeValue = value;\n              });\n            };\n          }\n        });\n      }\n    }\n\n\n    function wrapTemplate(type, template) {\n      type = lowercase(type || 'html');\n      switch (type) {\n      case 'svg':\n      case 'math':\n        var wrapper = window.document.createElement('div');\n        wrapper.innerHTML = '<' + type + '>' + template + '</' + type + '>';\n        return wrapper.childNodes[0].childNodes;\n      default:\n        return template;\n      }\n    }\n\n\n    function getTrustedAttrContext(nodeName, attrNormalizedName) {\n      if (attrNormalizedName === 'srcdoc') {\n        return $sce.HTML;\n      }\n      // All nodes with src attributes require a RESOURCE_URL value, except for\n      // img and various html5 media nodes, which require the MEDIA_URL context.\n      if (attrNormalizedName === 'src' || attrNormalizedName === 'ngSrc') {\n        if (['img', 'video', 'audio', 'source', 'track'].indexOf(nodeName) === -1) {\n          return $sce.RESOURCE_URL;\n        }\n        return $sce.MEDIA_URL;\n      } else if (attrNormalizedName === 'xlinkHref') {\n        // Some xlink:href are okay, most aren't\n        if (nodeName === 'image') return $sce.MEDIA_URL;\n        if (nodeName === 'a') return $sce.URL;\n        return $sce.RESOURCE_URL;\n      } else if (\n          // Formaction\n          (nodeName === 'form' && attrNormalizedName === 'action') ||\n          // If relative URLs can go where they are not expected to, then\n          // all sorts of trust issues can arise.\n          (nodeName === 'base' && attrNormalizedName === 'href') ||\n          // links can be stylesheets or imports, which can run script in the current origin\n          (nodeName === 'link' && attrNormalizedName === 'href')\n      ) {\n        return $sce.RESOURCE_URL;\n      } else if (nodeName === 'a' && (attrNormalizedName === 'href' ||\n                                 attrNormalizedName === 'ngHref')) {\n        return $sce.URL;\n      }\n    }\n\n    function getTrustedPropContext(nodeName, propNormalizedName) {\n      var prop = propNormalizedName.toLowerCase();\n      return PROP_CONTEXTS[nodeName + '|' + prop] || PROP_CONTEXTS['*|' + prop];\n    }\n\n    function sanitizeSrcsetPropertyValue(value) {\n      return sanitizeSrcset($sce.valueOf(value), 'ng-prop-srcset');\n    }\n    function addPropertyDirective(node, directives, attrName, propName) {\n      if (EVENT_HANDLER_ATTR_REGEXP.test(propName)) {\n        throw $compileMinErr('nodomevents', 'Property bindings for HTML DOM event properties are disallowed');\n      }\n\n      var nodeName = nodeName_(node);\n      var trustedContext = getTrustedPropContext(nodeName, propName);\n\n      var sanitizer = identity;\n      // Sanitize img[srcset] + source[srcset] values.\n      if (propName === 'srcset' && (nodeName === 'img' || nodeName === 'source')) {\n        sanitizer = sanitizeSrcsetPropertyValue;\n      } else if (trustedContext) {\n        sanitizer = $sce.getTrusted.bind($sce, trustedContext);\n      }\n\n      directives.push({\n        priority: 100,\n        compile: function ngPropCompileFn(_, attr) {\n          var ngPropGetter = $parse(attr[attrName]);\n          var ngPropWatch = $parse(attr[attrName], function sceValueOf(val) {\n            // Unwrap the value to compare the actual inner safe value, not the wrapper object.\n            return $sce.valueOf(val);\n          });\n\n          return {\n            pre: function ngPropPreLinkFn(scope, $element) {\n              function applyPropValue() {\n                var propValue = ngPropGetter(scope);\n                $element[0][propName] = sanitizer(propValue);\n              }\n\n              applyPropValue();\n              scope.$watch(ngPropWatch, applyPropValue);\n            }\n          };\n        }\n      });\n    }\n\n    function addEventDirective(directives, attrName, eventName) {\n      directives.push(\n        createEventDirective($parse, $rootScope, $exceptionHandler, attrName, eventName, /*forceAsync=*/false)\n      );\n    }\n\n    function addAttrInterpolateDirective(node, directives, value, name, isNgAttr) {\n      var nodeName = nodeName_(node);\n      var trustedContext = getTrustedAttrContext(nodeName, name);\n      var mustHaveExpression = !isNgAttr;\n      var allOrNothing = ALL_OR_NOTHING_ATTRS[name] || isNgAttr;\n\n      var interpolateFn = $interpolate(value, mustHaveExpression, trustedContext, allOrNothing);\n\n      // no interpolation found -> ignore\n      if (!interpolateFn) return;\n\n      if (name === 'multiple' && nodeName === 'select') {\n        throw $compileMinErr('selmulti',\n            'Binding to the \\'multiple\\' attribute is not supported. Element: {0}',\n            startingTag(node));\n      }\n\n      if (EVENT_HANDLER_ATTR_REGEXP.test(name)) {\n        throw $compileMinErr('nodomevents', 'Interpolations for HTML DOM event attributes are disallowed');\n      }\n\n      directives.push({\n        priority: 100,\n        compile: function() {\n            return {\n              pre: function attrInterpolatePreLinkFn(scope, element, attr) {\n                var $$observers = (attr.$$observers || (attr.$$observers = createMap()));\n\n                // If the attribute has changed since last $interpolate()ed\n                var newValue = attr[name];\n                if (newValue !== value) {\n                  // we need to interpolate again since the attribute value has been updated\n                  // (e.g. by another directive's compile function)\n                  // ensure unset/empty values make interpolateFn falsy\n                  interpolateFn = newValue && $interpolate(newValue, true, trustedContext, allOrNothing);\n                  value = newValue;\n                }\n\n                // if attribute was updated so that there is no interpolation going on we don't want to\n                // register any observers\n                if (!interpolateFn) return;\n\n                // initialize attr object so that it's ready in case we need the value for isolate\n                // scope initialization, otherwise the value would not be available from isolate\n                // directive's linking fn during linking phase\n                attr[name] = interpolateFn(scope);\n\n                ($$observers[name] || ($$observers[name] = [])).$$inter = true;\n                (attr.$$observers && attr.$$observers[name].$$scope || scope).\n                  $watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) {\n                    //special case for class attribute addition + removal\n                    //so that class changes can tap into the animation\n                    //hooks provided by the $animate service. Be sure to\n                    //skip animations when the first digest occurs (when\n                    //both the new and the old values are the same) since\n                    //the CSS classes are the non-interpolated values\n                    if (name === 'class' && newValue !== oldValue) {\n                      attr.$updateClass(newValue, oldValue);\n                    } else {\n                      attr.$set(name, newValue);\n                    }\n                  });\n              }\n            };\n          }\n      });\n    }\n\n\n    /**\n     * This is a special jqLite.replaceWith, which can replace items which\n     * have no parents, provided that the containing jqLite collection is provided.\n     *\n     * @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes\n     *                               in the root of the tree.\n     * @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep\n     *                                  the shell, but replace its DOM node reference.\n     * @param {Node} newNode The new DOM node.\n     */\n    function replaceWith($rootElement, elementsToRemove, newNode) {\n      var firstElementToRemove = elementsToRemove[0],\n          removeCount = elementsToRemove.length,\n          parent = firstElementToRemove.parentNode,\n          i, ii;\n\n      if ($rootElement) {\n        for (i = 0, ii = $rootElement.length; i < ii; i++) {\n          if ($rootElement[i] === firstElementToRemove) {\n            $rootElement[i++] = newNode;\n            for (var j = i, j2 = j + removeCount - 1,\n                     jj = $rootElement.length;\n                 j < jj; j++, j2++) {\n              if (j2 < jj) {\n                $rootElement[j] = $rootElement[j2];\n              } else {\n                delete $rootElement[j];\n              }\n            }\n            $rootElement.length -= removeCount - 1;\n\n            // If the replaced element is also the jQuery .context then replace it\n            // .context is a deprecated jQuery api, so we should set it only when jQuery set it\n            // http://api.jquery.com/context/\n            if ($rootElement.context === firstElementToRemove) {\n              $rootElement.context = newNode;\n            }\n            break;\n          }\n        }\n      }\n\n      if (parent) {\n        parent.replaceChild(newNode, firstElementToRemove);\n      }\n\n      // Append all the `elementsToRemove` to a fragment. This will...\n      // - remove them from the DOM\n      // - allow them to still be traversed with .nextSibling\n      // - allow a single fragment.qSA to fetch all elements being removed\n      var fragment = window.document.createDocumentFragment();\n      for (i = 0; i < removeCount; i++) {\n        fragment.appendChild(elementsToRemove[i]);\n      }\n\n      if (jqLite.hasData(firstElementToRemove)) {\n        // Copy over user data (that includes AngularJS's $scope etc.). Don't copy private\n        // data here because there's no public interface in jQuery to do that and copying over\n        // event listeners (which is the main use of private data) wouldn't work anyway.\n        jqLite.data(newNode, jqLite.data(firstElementToRemove));\n\n        // Remove $destroy event listeners from `firstElementToRemove`\n        jqLite(firstElementToRemove).off('$destroy');\n      }\n\n      // Cleanup any data/listeners on the elements and children.\n      // This includes invoking the $destroy event on any elements with listeners.\n      jqLite.cleanData(fragment.querySelectorAll('*'));\n\n      // Update the jqLite collection to only contain the `newNode`\n      for (i = 1; i < removeCount; i++) {\n        delete elementsToRemove[i];\n      }\n      elementsToRemove[0] = newNode;\n      elementsToRemove.length = 1;\n    }\n\n\n    function cloneAndAnnotateFn(fn, annotation) {\n      return extend(function() { return fn.apply(null, arguments); }, fn, annotation);\n    }\n\n\n    function invokeLinkFn(linkFn, scope, $element, attrs, controllers, transcludeFn) {\n      try {\n        linkFn(scope, $element, attrs, controllers, transcludeFn);\n      } catch (e) {\n        $exceptionHandler(e, startingTag($element));\n      }\n    }\n\n    function strictBindingsCheck(attrName, directiveName) {\n      if (strictComponentBindingsEnabled) {\n        throw $compileMinErr('missingattr',\n          'Attribute \\'{0}\\' of \\'{1}\\' is non-optional and must be set!',\n          attrName, directiveName);\n      }\n    }\n\n    // Set up $watches for isolate scope and controller bindings.\n    function initializeDirectiveBindings(scope, attrs, destination, bindings, directive) {\n      var removeWatchCollection = [];\n      var initialChanges = {};\n      var changes;\n\n      forEach(bindings, function initializeBinding(definition, scopeName) {\n        var attrName = definition.attrName,\n        optional = definition.optional,\n        mode = definition.mode, // @, =, <, or &\n        lastValue,\n        parentGet, parentSet, compare, removeWatch;\n\n        switch (mode) {\n\n          case '@':\n            if (!optional && !hasOwnProperty.call(attrs, attrName)) {\n              strictBindingsCheck(attrName, directive.name);\n              destination[scopeName] = attrs[attrName] = undefined;\n\n            }\n            removeWatch = attrs.$observe(attrName, function(value) {\n              if (isString(value) || isBoolean(value)) {\n                var oldValue = destination[scopeName];\n                recordChanges(scopeName, value, oldValue);\n                destination[scopeName] = value;\n              }\n            });\n            attrs.$$observers[attrName].$$scope = scope;\n            lastValue = attrs[attrName];\n            if (isString(lastValue)) {\n              // If the attribute has been provided then we trigger an interpolation to ensure\n              // the value is there for use in the link fn\n              destination[scopeName] = $interpolate(lastValue)(scope);\n            } else if (isBoolean(lastValue)) {\n              // If the attributes is one of the BOOLEAN_ATTR then AngularJS will have converted\n              // the value to boolean rather than a string, so we special case this situation\n              destination[scopeName] = lastValue;\n            }\n            initialChanges[scopeName] = new SimpleChange(_UNINITIALIZED_VALUE, destination[scopeName]);\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '=':\n            if (!hasOwnProperty.call(attrs, attrName)) {\n              if (optional) break;\n              strictBindingsCheck(attrName, directive.name);\n              attrs[attrName] = undefined;\n            }\n            if (optional && !attrs[attrName]) break;\n\n            parentGet = $parse(attrs[attrName]);\n            if (parentGet.literal) {\n              compare = equals;\n            } else {\n              compare = simpleCompare;\n            }\n            parentSet = parentGet.assign || function() {\n              // reset the change, or we will throw this exception on every $digest\n              lastValue = destination[scopeName] = parentGet(scope);\n              throw $compileMinErr('nonassign',\n                  'Expression \\'{0}\\' in attribute \\'{1}\\' used with directive \\'{2}\\' is non-assignable!',\n                  attrs[attrName], attrName, directive.name);\n            };\n            lastValue = destination[scopeName] = parentGet(scope);\n            var parentValueWatch = function parentValueWatch(parentValue) {\n              if (!compare(parentValue, destination[scopeName])) {\n                // we are out of sync and need to copy\n                if (!compare(parentValue, lastValue)) {\n                  // parent changed and it has precedence\n                  destination[scopeName] = parentValue;\n                } else {\n                  // if the parent can be assigned then do so\n                  parentSet(scope, parentValue = destination[scopeName]);\n                }\n              }\n              lastValue = parentValue;\n              return lastValue;\n            };\n            parentValueWatch.$stateful = true;\n            if (definition.collection) {\n              removeWatch = scope.$watchCollection(attrs[attrName], parentValueWatch);\n            } else {\n              removeWatch = scope.$watch($parse(attrs[attrName], parentValueWatch), null, parentGet.literal);\n            }\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '<':\n            if (!hasOwnProperty.call(attrs, attrName)) {\n              if (optional) break;\n              strictBindingsCheck(attrName, directive.name);\n              attrs[attrName] = undefined;\n            }\n            if (optional && !attrs[attrName]) break;\n\n            parentGet = $parse(attrs[attrName]);\n            var isLiteral = parentGet.literal;\n\n            var initialValue = destination[scopeName] = parentGet(scope);\n            initialChanges[scopeName] = new SimpleChange(_UNINITIALIZED_VALUE, destination[scopeName]);\n\n            removeWatch = scope[definition.collection ? '$watchCollection' : '$watch'](parentGet, function parentValueWatchAction(newValue, oldValue) {\n              if (oldValue === newValue) {\n                if (oldValue === initialValue || (isLiteral && equals(oldValue, initialValue))) {\n                  return;\n                }\n                oldValue = initialValue;\n              }\n              recordChanges(scopeName, newValue, oldValue);\n              destination[scopeName] = newValue;\n            });\n\n            removeWatchCollection.push(removeWatch);\n            break;\n\n          case '&':\n            if (!optional && !hasOwnProperty.call(attrs, attrName)) {\n              strictBindingsCheck(attrName, directive.name);\n            }\n            // Don't assign Object.prototype method to scope\n            parentGet = attrs.hasOwnProperty(attrName) ? $parse(attrs[attrName]) : noop;\n\n            // Don't assign noop to destination if expression is not valid\n            if (parentGet === noop && optional) break;\n\n            destination[scopeName] = function(locals) {\n              return parentGet(scope, locals);\n            };\n            break;\n        }\n      });\n\n      function recordChanges(key, currentValue, previousValue) {\n        if (isFunction(destination.$onChanges) && !simpleCompare(currentValue, previousValue)) {\n          // If we have not already scheduled the top level onChangesQueue handler then do so now\n          if (!onChangesQueue) {\n            scope.$$postDigest(flushOnChangesQueue);\n            onChangesQueue = [];\n          }\n          // If we have not already queued a trigger of onChanges for this controller then do so now\n          if (!changes) {\n            changes = {};\n            onChangesQueue.push(triggerOnChangesHook);\n          }\n          // If the has been a change on this property already then we need to reuse the previous value\n          if (changes[key]) {\n            previousValue = changes[key].previousValue;\n          }\n          // Store this change\n          changes[key] = new SimpleChange(previousValue, currentValue);\n        }\n      }\n\n      function triggerOnChangesHook() {\n        destination.$onChanges(changes);\n        // Now clear the changes so that we schedule onChanges when more changes arrive\n        changes = undefined;\n      }\n\n      return {\n        initialChanges: initialChanges,\n        removeWatches: removeWatchCollection.length && function removeWatches() {\n          for (var i = 0, ii = removeWatchCollection.length; i < ii; ++i) {\n            removeWatchCollection[i]();\n          }\n        }\n      };\n    }\n  }];\n}\n\nfunction SimpleChange(previous, current) {\n  this.previousValue = previous;\n  this.currentValue = current;\n}\nSimpleChange.prototype.isFirstChange = function() { return this.previousValue === _UNINITIALIZED_VALUE; };\n\n\nvar PREFIX_REGEXP = /^((?:x|data)[:\\-_])/i;\nvar SPECIAL_CHARS_REGEXP = /[:\\-_]+(.)/g;\n\n/**\n * Converts all accepted directives format into proper directive name.\n * @param name Name to normalize\n */\nfunction directiveNormalize(name) {\n  return name\n    .replace(PREFIX_REGEXP, '')\n    .replace(SPECIAL_CHARS_REGEXP, function(_, letter, offset) {\n      return offset ? letter.toUpperCase() : letter;\n    });\n}\n\n/**\n * @ngdoc type\n * @name $compile.directive.Attributes\n *\n * @description\n * A shared object between directive compile / linking functions which contains normalized DOM\n * element attributes. The values reflect current binding state `{{ }}`. The normalization is\n * needed since all of these are treated as equivalent in AngularJS:\n *\n * ```\n *    <span ng:bind=\"a\" ng-bind=\"a\" data-ng-bind=\"a\" x-ng-bind=\"a\">\n * ```\n */\n\n/**\n * @ngdoc property\n * @name $compile.directive.Attributes#$attr\n *\n * @description\n * A map of DOM element attribute names to the normalized name. This is\n * needed to do reverse lookup from normalized name back to actual name.\n */\n\n\n/**\n * @ngdoc method\n * @name $compile.directive.Attributes#$set\n * @kind function\n *\n * @description\n * Set DOM element attribute value.\n *\n *\n * @param {string} name Normalized element attribute name of the property to modify. The name is\n *          reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr}\n *          property to the original name.\n * @param {string} value Value to set the attribute to. The value can be an interpolated string.\n */\n\n\n\n/**\n * Closure compiler type information\n */\n\nfunction nodesetLinkingFn(\n  /* angular.Scope */ scope,\n  /* NodeList */ nodeList,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction directiveLinkingFn(\n  /* nodesetLinkingFn */ nodesetLinkingFn,\n  /* angular.Scope */ scope,\n  /* Node */ node,\n  /* Element */ rootElement,\n  /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction tokenDifference(str1, str2) {\n  var values = '',\n      tokens1 = str1.split(/\\s+/),\n      tokens2 = str2.split(/\\s+/);\n\n  outer:\n  for (var i = 0; i < tokens1.length; i++) {\n    var token = tokens1[i];\n    for (var j = 0; j < tokens2.length; j++) {\n      if (token === tokens2[j]) continue outer;\n    }\n    values += (values.length > 0 ? ' ' : '') + token;\n  }\n  return values;\n}\n\nfunction removeComments(jqNodes) {\n  jqNodes = jqLite(jqNodes);\n  var i = jqNodes.length;\n\n  if (i <= 1) {\n    return jqNodes;\n  }\n\n  while (i--) {\n    var node = jqNodes[i];\n    if (node.nodeType === NODE_TYPE_COMMENT ||\n       (node.nodeType === NODE_TYPE_TEXT && node.nodeValue.trim() === '')) {\n         splice.call(jqNodes, i, 1);\n    }\n  }\n  return jqNodes;\n}\n\nvar $controllerMinErr = minErr('$controller');\n\n\nvar CNTRL_REG = /^(\\S+)(\\s+as\\s+([\\w$]+))?$/;\nfunction identifierForController(controller, ident) {\n  if (ident && isString(ident)) return ident;\n  if (isString(controller)) {\n    var match = CNTRL_REG.exec(controller);\n    if (match) return match[3];\n  }\n}\n\n\n/**\n * @ngdoc provider\n * @name $controllerProvider\n * @this\n *\n * @description\n * The {@link ng.$controller $controller service} is used by AngularJS to create new\n * controllers.\n *\n * This provider allows controller registration via the\n * {@link ng.$controllerProvider#register register} method.\n */\nfunction $ControllerProvider() {\n  var controllers = {};\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#has\n   * @param {string} name Controller name to check.\n   */\n  this.has = function(name) {\n    return controllers.hasOwnProperty(name);\n  };\n\n  /**\n   * @ngdoc method\n   * @name $controllerProvider#register\n   * @param {string|Object} name Controller name, or an object map of controllers where the keys are\n   *    the names and the values are the constructors.\n   * @param {Function|Array} constructor Controller constructor fn (optionally decorated with DI\n   *    annotations in the array notation).\n   */\n  this.register = function(name, constructor) {\n    assertNotHasOwnProperty(name, 'controller');\n    if (isObject(name)) {\n      extend(controllers, name);\n    } else {\n      controllers[name] = constructor;\n    }\n  };\n\n  this.$get = ['$injector', function($injector) {\n\n    /**\n     * @ngdoc service\n     * @name $controller\n     * @requires $injector\n     *\n     * @param {Function|string} constructor If called with a function then it's considered to be the\n     *    controller constructor function. Otherwise it's considered to be a string which is used\n     *    to retrieve the controller constructor using the following steps:\n     *\n     *    * check if a controller with given name is registered via `$controllerProvider`\n     *    * check if evaluating the string on the current scope returns a constructor\n     *\n     *    The string can use the `controller as property` syntax, where the controller instance is published\n     *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n     *    to work correctly.\n     *\n     * @param {Object} locals Injection locals for Controller.\n     * @return {Object} Instance of given controller.\n     *\n     * @description\n     * `$controller` service is responsible for instantiating controllers.\n     *\n     * It's just a simple call to {@link auto.$injector $injector}, but extracted into\n     * a service, so that one can override this service with [BC version](https://gist.github.com/1649788).\n     */\n    return function $controller(expression, locals, later, ident) {\n      // PRIVATE API:\n      //   param `later` --- indicates that the controller's constructor is invoked at a later time.\n      //                     If true, $controller will allocate the object with the correct\n      //                     prototype chain, but will not invoke the controller until a returned\n      //                     callback is invoked.\n      //   param `ident` --- An optional label which overrides the label parsed from the controller\n      //                     expression, if any.\n      var instance, match, constructor, identifier;\n      later = later === true;\n      if (ident && isString(ident)) {\n        identifier = ident;\n      }\n\n      if (isString(expression)) {\n        match = expression.match(CNTRL_REG);\n        if (!match) {\n          throw $controllerMinErr('ctrlfmt',\n            'Badly formed controller string \\'{0}\\'. ' +\n            'Must match `__name__ as __id__` or `__name__`.', expression);\n        }\n        constructor = match[1];\n        identifier = identifier || match[3];\n        expression = controllers.hasOwnProperty(constructor)\n            ? controllers[constructor]\n            : getter(locals.$scope, constructor, true);\n\n        if (!expression) {\n          throw $controllerMinErr('ctrlreg',\n            'The controller with the name \\'{0}\\' is not registered.', constructor);\n        }\n\n        assertArgFn(expression, constructor, true);\n      }\n\n      if (later) {\n        // Instantiate controller later:\n        // This machinery is used to create an instance of the object before calling the\n        // controller's constructor itself.\n        //\n        // This allows properties to be added to the controller before the constructor is\n        // invoked. Primarily, this is used for isolate scope bindings in $compile.\n        //\n        // This feature is not intended for use by applications, and is thus not documented\n        // publicly.\n        // Object creation: http://jsperf.com/create-constructor/2\n        var controllerPrototype = (isArray(expression) ?\n          expression[expression.length - 1] : expression).prototype;\n        instance = Object.create(controllerPrototype || null);\n\n        if (identifier) {\n          addIdentifier(locals, identifier, instance, constructor || expression.name);\n        }\n\n        return extend(function $controllerInit() {\n          var result = $injector.invoke(expression, instance, locals, constructor);\n          if (result !== instance && (isObject(result) || isFunction(result))) {\n            instance = result;\n            if (identifier) {\n              // If result changed, re-assign controllerAs value to scope.\n              addIdentifier(locals, identifier, instance, constructor || expression.name);\n            }\n          }\n          return instance;\n        }, {\n          instance: instance,\n          identifier: identifier\n        });\n      }\n\n      instance = $injector.instantiate(expression, locals, constructor);\n\n      if (identifier) {\n        addIdentifier(locals, identifier, instance, constructor || expression.name);\n      }\n\n      return instance;\n    };\n\n    function addIdentifier(locals, identifier, instance, name) {\n      if (!(locals && isObject(locals.$scope))) {\n        throw minErr('$controller')('noscp',\n          'Cannot export controller \\'{0}\\' as \\'{1}\\'! No $scope object provided via `locals`.',\n          name, identifier);\n      }\n\n      locals.$scope[identifier] = instance;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $document\n * @requires $window\n * @this\n *\n * @description\n * A {@link angular.element jQuery or jqLite} wrapper for the browser's `window.document` object.\n *\n * @example\n   <example module=\"documentExample\" name=\"document\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <p>$document title: <b ng-bind=\"title\"></b></p>\n         <p>window.document title: <b ng-bind=\"windowTitle\"></b></p>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('documentExample', [])\n         .controller('ExampleController', ['$scope', '$document', function($scope, $document) {\n           $scope.title = $document[0].title;\n           $scope.windowTitle = angular.element(window.document)[0].title;\n         }]);\n     </file>\n   </example>\n */\nfunction $DocumentProvider() {\n  this.$get = ['$window', function(window) {\n    return jqLite(window.document);\n  }];\n}\n\n\n/**\n * @private\n * @this\n * Listens for document visibility change and makes the current status accessible.\n */\nfunction $$IsDocumentHiddenProvider() {\n  this.$get = ['$document', '$rootScope', function($document, $rootScope) {\n    var doc = $document[0];\n    var hidden = doc && doc.hidden;\n\n    $document.on('visibilitychange', changeListener);\n\n    $rootScope.$on('$destroy', function() {\n      $document.off('visibilitychange', changeListener);\n    });\n\n    function changeListener() {\n      hidden = doc.hidden;\n    }\n\n    return function() {\n      return hidden;\n    };\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $exceptionHandler\n * @requires ng.$log\n * @this\n *\n * @description\n * Any uncaught exception in AngularJS expressions is delegated to this service.\n * The default implementation simply delegates to `$log.error` which logs it into\n * the browser console.\n *\n * In unit tests, if `angular-mocks.js` is loaded, this service is overridden by\n * {@link ngMock.$exceptionHandler mock $exceptionHandler} which aids in testing.\n *\n * ## Example:\n *\n * The example below will overwrite the default `$exceptionHandler` in order to (a) log uncaught\n * errors to the backend for later inspection by the developers and (b) to use `$log.warn()` instead\n * of `$log.error()`.\n *\n * ```js\n *   angular.\n *     module('exceptionOverwrite', []).\n *     factory('$exceptionHandler', ['$log', 'logErrorsToBackend', function($log, logErrorsToBackend) {\n *       return function myExceptionHandler(exception, cause) {\n *         logErrorsToBackend(exception, cause);\n *         $log.warn(exception, cause);\n *       };\n *     }]);\n * ```\n *\n * <hr />\n * Note, that code executed in event-listeners (even those registered using jqLite's `on`/`bind`\n * methods) does not delegate exceptions to the {@link ng.$exceptionHandler $exceptionHandler}\n * (unless executed during a digest).\n *\n * If you wish, you can manually delegate exceptions, e.g.\n * `try { ... } catch(e) { $exceptionHandler(e); }`\n *\n * @param {Error} exception Exception associated with the error.\n * @param {string=} cause Optional information about the context in which\n *       the error was thrown.\n *\n */\nfunction $ExceptionHandlerProvider() {\n  this.$get = ['$log', function($log) {\n    return function(exception, cause) {\n      $log.error.apply($log, arguments);\n    };\n  }];\n}\n\nvar $$ForceReflowProvider = /** @this */ function() {\n  this.$get = ['$document', function($document) {\n    return function(domNode) {\n      //the line below will force the browser to perform a repaint so\n      //that all the animated elements within the animation frame will\n      //be properly updated and drawn on screen. This is required to\n      //ensure that the preparation animation is properly flushed so that\n      //the active state picks up from there. DO NOT REMOVE THIS LINE.\n      //DO NOT OPTIMIZE THIS LINE. THE MINIFIER WILL REMOVE IT OTHERWISE WHICH\n      //WILL RESULT IN AN UNPREDICTABLE BUG THAT IS VERY HARD TO TRACK DOWN AND\n      //WILL TAKE YEARS AWAY FROM YOUR LIFE.\n      if (domNode) {\n        if (!domNode.nodeType && domNode instanceof jqLite) {\n          domNode = domNode[0];\n        }\n      } else {\n        domNode = $document[0].body;\n      }\n      return domNode.offsetWidth + 1;\n    };\n  }];\n};\n\nvar APPLICATION_JSON = 'application/json';\nvar CONTENT_TYPE_APPLICATION_JSON = {'Content-Type': APPLICATION_JSON + ';charset=utf-8'};\nvar JSON_START = /^\\[|^\\{(?!\\{)/;\nvar JSON_ENDS = {\n  '[': /]$/,\n  '{': /}$/\n};\nvar JSON_PROTECTION_PREFIX = /^\\)]\\}',?\\n/;\nvar $httpMinErr = minErr('$http');\n\nfunction serializeValue(v) {\n  if (isObject(v)) {\n    return isDate(v) ? v.toISOString() : toJson(v);\n  }\n  return v;\n}\n\n\n/** @this */\nfunction $HttpParamSerializerProvider() {\n  /**\n   * @ngdoc service\n   * @name $httpParamSerializer\n   * @description\n   *\n   * Default {@link $http `$http`} params serializer that converts objects to strings\n   * according to the following rules:\n   *\n   * * `{'foo': 'bar'}` results in `foo=bar`\n   * * `{'foo': Date.now()}` results in `foo=2015-04-01T09%3A50%3A49.262Z` (`toISOString()` and encoded representation of a Date object)\n   * * `{'foo': ['bar', 'baz']}` results in `foo=bar&foo=baz` (repeated key for each array element)\n   * * `{'foo': {'bar':'baz'}}` results in `foo=%7B%22bar%22%3A%22baz%22%7D` (stringified and encoded representation of an object)\n   *\n   * Note that serializer will sort the request parameters alphabetically.\n   */\n\n  this.$get = function() {\n    return function ngParamSerializer(params) {\n      if (!params) return '';\n      var parts = [];\n      forEachSorted(params, function(value, key) {\n        if (value === null || isUndefined(value) || isFunction(value)) return;\n        if (isArray(value)) {\n          forEach(value, function(v) {\n            parts.push(encodeUriQuery(key)  + '=' + encodeUriQuery(serializeValue(v)));\n          });\n        } else {\n          parts.push(encodeUriQuery(key) + '=' + encodeUriQuery(serializeValue(value)));\n        }\n      });\n\n      return parts.join('&');\n    };\n  };\n}\n\n/** @this */\nfunction $HttpParamSerializerJQLikeProvider() {\n  /**\n   * @ngdoc service\n   * @name $httpParamSerializerJQLike\n   *\n   * @description\n   *\n   * Alternative {@link $http `$http`} params serializer that follows\n   * jQuery's [`param()`](http://api.jquery.com/jquery.param/) method logic.\n   * The serializer will also sort the params alphabetically.\n   *\n   * To use it for serializing `$http` request parameters, set it as the `paramSerializer` property:\n   *\n   * ```js\n   * $http({\n   *   url: myUrl,\n   *   method: 'GET',\n   *   params: myParams,\n   *   paramSerializer: '$httpParamSerializerJQLike'\n   * });\n   * ```\n   *\n   * It is also possible to set it as the default `paramSerializer` in the\n   * {@link $httpProvider#defaults `$httpProvider`}.\n   *\n   * Additionally, you can inject the serializer and use it explicitly, for example to serialize\n   * form data for submission:\n   *\n   * ```js\n   * .controller(function($http, $httpParamSerializerJQLike) {\n   *   //...\n   *\n   *   $http({\n   *     url: myUrl,\n   *     method: 'POST',\n   *     data: $httpParamSerializerJQLike(myData),\n   *     headers: {\n   *       'Content-Type': 'application/x-www-form-urlencoded'\n   *     }\n   *   });\n   *\n   * });\n   * ```\n   *\n   */\n  this.$get = function() {\n    return function jQueryLikeParamSerializer(params) {\n      if (!params) return '';\n      var parts = [];\n      serialize(params, '', true);\n      return parts.join('&');\n\n      function serialize(toSerialize, prefix, topLevel) {\n        if (isArray(toSerialize)) {\n          forEach(toSerialize, function(value, index) {\n            serialize(value, prefix + '[' + (isObject(value) ? index : '') + ']');\n          });\n        } else if (isObject(toSerialize) && !isDate(toSerialize)) {\n          forEachSorted(toSerialize, function(value, key) {\n            serialize(value, prefix +\n                (topLevel ? '' : '[') +\n                key +\n                (topLevel ? '' : ']'));\n          });\n        } else {\n          if (isFunction(toSerialize)) {\n            toSerialize = toSerialize();\n          }\n          parts.push(encodeUriQuery(prefix) + '=' +\n              (toSerialize == null ? '' : encodeUriQuery(serializeValue(toSerialize))));\n        }\n      }\n    };\n  };\n}\n\nfunction defaultHttpResponseTransform(data, headers) {\n  if (isString(data)) {\n    // Strip json vulnerability protection prefix and trim whitespace\n    var tempData = data.replace(JSON_PROTECTION_PREFIX, '').trim();\n\n    if (tempData) {\n      var contentType = headers('Content-Type');\n      var hasJsonContentType = contentType && (contentType.indexOf(APPLICATION_JSON) === 0);\n\n      if (hasJsonContentType || isJsonLike(tempData)) {\n        try {\n          data = fromJson(tempData);\n        } catch (e) {\n          if (!hasJsonContentType) {\n            return data;\n          }\n          throw $httpMinErr('baddata', 'Data must be a valid JSON object. Received: \"{0}\". ' +\n          'Parse error: \"{1}\"', data, e);\n        }\n      }\n    }\n  }\n\n  return data;\n}\n\nfunction isJsonLike(str) {\n    var jsonStart = str.match(JSON_START);\n    return jsonStart && JSON_ENDS[jsonStart[0]].test(str);\n}\n\n/**\n * Parse headers into key value object\n *\n * @param {string} headers Raw headers as a string\n * @returns {Object} Parsed headers as key value object\n */\nfunction parseHeaders(headers) {\n  var parsed = createMap(), i;\n\n  function fillInParsed(key, val) {\n    if (key) {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  }\n\n  if (isString(headers)) {\n    forEach(headers.split('\\n'), function(line) {\n      i = line.indexOf(':');\n      fillInParsed(lowercase(trim(line.substr(0, i))), trim(line.substr(i + 1)));\n    });\n  } else if (isObject(headers)) {\n    forEach(headers, function(headerVal, headerKey) {\n      fillInParsed(lowercase(headerKey), trim(headerVal));\n    });\n  }\n\n  return parsed;\n}\n\n\n/**\n * Returns a function that provides access to parsed headers.\n *\n * Headers are lazy parsed when first requested.\n * @see parseHeaders\n *\n * @param {(string|Object)} headers Headers to provide access to.\n * @returns {function(string=)} Returns a getter function which if called with:\n *\n *   - if called with an argument returns a single header value or null\n *   - if called with no arguments returns an object containing all headers.\n */\nfunction headersGetter(headers) {\n  var headersObj;\n\n  return function(name) {\n    if (!headersObj) headersObj =  parseHeaders(headers);\n\n    if (name) {\n      var value = headersObj[lowercase(name)];\n      if (value === undefined) {\n        value = null;\n      }\n      return value;\n    }\n\n    return headersObj;\n  };\n}\n\n\n/**\n * Chain all given functions\n *\n * This function is used for both request and response transforming\n *\n * @param {*} data Data to transform.\n * @param {function(string=)} headers HTTP headers getter fn.\n * @param {number} status HTTP status code of the response.\n * @param {(Function|Array.<Function>)} fns Function or an array of functions.\n * @returns {*} Transformed data.\n */\nfunction transformData(data, headers, status, fns) {\n  if (isFunction(fns)) {\n    return fns(data, headers, status);\n  }\n\n  forEach(fns, function(fn) {\n    data = fn(data, headers, status);\n  });\n\n  return data;\n}\n\n\nfunction isSuccess(status) {\n  return 200 <= status && status < 300;\n}\n\n\n/**\n * @ngdoc provider\n * @name $httpProvider\n * @this\n *\n * @description\n * Use `$httpProvider` to change the default behavior of the {@link ng.$http $http} service.\n */\nfunction $HttpProvider() {\n  /**\n   * @ngdoc property\n   * @name $httpProvider#defaults\n   * @description\n   *\n   * Object containing default values for all {@link ng.$http $http} requests.\n   *\n   * - **`defaults.cache`** - {boolean|Object} - A boolean value or object created with\n   * {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of HTTP responses\n   * by default. See {@link $http#caching $http Caching} for more information.\n   *\n   * - **`defaults.headers`** - {Object} - Default headers for all $http requests.\n   * Refer to {@link ng.$http#setting-http-headers $http} for documentation on\n   * setting default headers.\n   *     - **`defaults.headers.common`**\n   *     - **`defaults.headers.post`**\n   *     - **`defaults.headers.put`**\n   *     - **`defaults.headers.patch`**\n   *\n   * - **`defaults.jsonpCallbackParam`** - `{string}` - the name of the query parameter that passes the name of the\n   * callback in a JSONP request. The value of this parameter will be replaced with the expression generated by the\n   * {@link $jsonpCallbacks} service. Defaults to `'callback'`.\n   *\n   * - **`defaults.paramSerializer`** - `{string|function(Object<string,string>):string}` - A function\n   *  used to the prepare string representation of request parameters (specified as an object).\n   *  If specified as string, it is interpreted as a function registered with the {@link auto.$injector $injector}.\n   *  Defaults to {@link ng.$httpParamSerializer $httpParamSerializer}.\n   *\n   * - **`defaults.transformRequest`** -\n   * `{Array<function(data, headersGetter)>|function(data, headersGetter)}` -\n   * An array of functions (or a single function) which are applied to the request data.\n   * By default, this is an array with one request transformation function:\n   *\n   *   - If the `data` property of the request configuration object contains an object, serialize it\n   *     into JSON format.\n   *\n   * - **`defaults.transformResponse`** -\n   * `{Array<function(data, headersGetter, status)>|function(data, headersGetter, status)}` -\n   * An array of functions (or a single function) which are applied to the response data. By default,\n   * this is an array which applies one response transformation function that does two things:\n   *\n   *  - If XSRF prefix is detected, strip it\n   *    (see {@link ng.$http#security-considerations Security Considerations in the $http docs}).\n   *  - If the `Content-Type` is `application/json` or the response looks like JSON,\n   *    deserialize it using a JSON parser.\n   *\n   * - **`defaults.xsrfCookieName`** - {string} - Name of cookie containing the XSRF token.\n   * Defaults value is `'XSRF-TOKEN'`.\n   *\n   * - **`defaults.xsrfHeaderName`** - {string} - Name of HTTP header to populate with the\n   * XSRF token. Defaults value is `'X-XSRF-TOKEN'`.\n   *\n   */\n  var defaults = this.defaults = {\n    // transform incoming response data\n    transformResponse: [defaultHttpResponseTransform],\n\n    // transform outgoing request data\n    transformRequest: [function(d) {\n      return isObject(d) && !isFile(d) && !isBlob(d) && !isFormData(d) ? toJson(d) : d;\n    }],\n\n    // default headers\n    headers: {\n      common: {\n        'Accept': 'application/json, text/plain, */*'\n      },\n      post:   shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      put:    shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n      patch:  shallowCopy(CONTENT_TYPE_APPLICATION_JSON)\n    },\n\n    xsrfCookieName: 'XSRF-TOKEN',\n    xsrfHeaderName: 'X-XSRF-TOKEN',\n\n    paramSerializer: '$httpParamSerializer',\n\n    jsonpCallbackParam: 'callback'\n  };\n\n  var useApplyAsync = false;\n  /**\n   * @ngdoc method\n   * @name $httpProvider#useApplyAsync\n   * @description\n   *\n   * Configure $http service to combine processing of multiple http responses received at around\n   * the same time via {@link ng.$rootScope.Scope#$applyAsync $rootScope.$applyAsync}. This can result in\n   * significant performance improvement for bigger applications that make many HTTP requests\n   * concurrently (common during application bootstrap).\n   *\n   * Defaults to false. If no value is specified, returns the current configured value.\n   *\n   * @param {boolean=} value If true, when requests are loaded, they will schedule a deferred\n   *    \"apply\" on the next tick, giving time for subsequent requests in a roughly ~10ms window\n   *    to load and share the same digest cycle.\n   *\n   * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining.\n   *    otherwise, returns the current configured value.\n   */\n  this.useApplyAsync = function(value) {\n    if (isDefined(value)) {\n      useApplyAsync = !!value;\n      return this;\n    }\n    return useApplyAsync;\n  };\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#interceptors\n   * @description\n   *\n   * Array containing service factories for all synchronous or asynchronous {@link ng.$http $http}\n   * pre-processing of request or postprocessing of responses.\n   *\n   * These service factories are ordered by request, i.e. they are applied in the same order as the\n   * array, on request, but reverse order, on response.\n   *\n   * {@link ng.$http#interceptors Interceptors detailed info}\n   */\n  var interceptorFactories = this.interceptors = [];\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#xsrfTrustedOrigins\n   * @description\n   *\n   * Array containing URLs whose origins are trusted to receive the XSRF token. See the\n   * {@link ng.$http#security-considerations Security Considerations} sections for more details on\n   * XSRF.\n   *\n   * **Note:** An \"origin\" consists of the [URI scheme](https://en.wikipedia.org/wiki/URI_scheme),\n   * the [hostname](https://en.wikipedia.org/wiki/Hostname) and the\n   * [port number](https://en.wikipedia.org/wiki/Port_(computer_networking). For `http:` and\n   * `https:`, the port number can be omitted if using th default ports (80 and 443 respectively).\n   * Examples: `http://example.com`, `https://api.example.com:9876`\n   *\n   * <div class=\"alert alert-warning\">\n   *   It is not possible to trust specific URLs/paths. The `path`, `query` and `fragment` parts\n   *   of a URL will be ignored. For example, `https://foo.com/path/bar?query=baz#fragment` will be\n   *   treated as `https://foo.com`, meaning that **all** requests to URLs starting with\n   *   `https://foo.com/` will include the XSRF token.\n   * </div>\n   *\n   * @example\n   *\n   * ```js\n   * // App served from `https://example.com/`.\n   * angular.\n   *   module('xsrfTrustedOriginsExample', []).\n   *   config(['$httpProvider', function($httpProvider) {\n   *     $httpProvider.xsrfTrustedOrigins.push('https://api.example.com');\n   *   }]).\n   *   run(['$http', function($http) {\n   *     // The XSRF token will be sent.\n   *     $http.get('https://api.example.com/preferences').then(...);\n   *\n   *     // The XSRF token will NOT be sent.\n   *     $http.get('https://stats.example.com/activity').then(...);\n   *   }]);\n   * ```\n   */\n  var xsrfTrustedOrigins = this.xsrfTrustedOrigins = [];\n\n  /**\n   * @ngdoc property\n   * @name $httpProvider#xsrfWhitelistedOrigins\n   * @description\n   *\n   * @deprecated\n   * sinceVersion=\"1.8.1\"\n   *\n   * This property is deprecated. Use {@link $httpProvider#xsrfTrustedOrigins xsrfTrustedOrigins}\n   * instead.\n   */\n  Object.defineProperty(this, 'xsrfWhitelistedOrigins', {\n    get: function() {\n      return this.xsrfTrustedOrigins;\n    },\n    set: function(origins) {\n      this.xsrfTrustedOrigins = origins;\n    }\n  });\n\n  this.$get = ['$browser', '$httpBackend', '$$cookieReader', '$cacheFactory', '$rootScope', '$q', '$injector', '$sce',\n      function($browser, $httpBackend, $$cookieReader, $cacheFactory, $rootScope, $q, $injector, $sce) {\n\n    var defaultCache = $cacheFactory('$http');\n\n    /**\n     * Make sure that default param serializer is exposed as a function\n     */\n    defaults.paramSerializer = isString(defaults.paramSerializer) ?\n      $injector.get(defaults.paramSerializer) : defaults.paramSerializer;\n\n    /**\n     * Interceptors stored in reverse order. Inner interceptors before outer interceptors.\n     * The reversal is needed so that we can build up the interception chain around the\n     * server request.\n     */\n    var reversedInterceptors = [];\n\n    forEach(interceptorFactories, function(interceptorFactory) {\n      reversedInterceptors.unshift(isString(interceptorFactory)\n          ? $injector.get(interceptorFactory) : $injector.invoke(interceptorFactory));\n    });\n\n    /**\n     * A function to check request URLs against a list of allowed origins.\n     */\n    var urlIsAllowedOrigin = urlIsAllowedOriginFactory(xsrfTrustedOrigins);\n\n    /**\n     * @ngdoc service\n     * @kind function\n     * @name $http\n     * @requires ng.$httpBackend\n     * @requires $cacheFactory\n     * @requires $rootScope\n     * @requires $q\n     * @requires $injector\n     *\n     * @description\n     * The `$http` service is a core AngularJS service that facilitates communication with the remote\n     * HTTP servers via the browser's [XMLHttpRequest](https://developer.mozilla.org/en/xmlhttprequest)\n     * object or via [JSONP](http://en.wikipedia.org/wiki/JSONP).\n     *\n     * For unit testing applications that use `$http` service, see\n     * {@link ngMock.$httpBackend $httpBackend mock}.\n     *\n     * For a higher level of abstraction, please check out the {@link ngResource.$resource\n     * $resource} service.\n     *\n     * The $http API is based on the {@link ng.$q deferred/promise APIs} exposed by\n     * the $q service. While for simple usage patterns this doesn't matter much, for advanced usage\n     * it is important to familiarize yourself with these APIs and the guarantees they provide.\n     *\n     *\n     * ## General usage\n     * The `$http` service is a function which takes a single argument — a {@link $http#usage configuration object} —\n     * that is used to generate an HTTP request and returns  a {@link ng.$q promise} that is\n     * resolved (request success) or rejected (request failure) with a\n     * {@link ng.$http#$http-returns response} object.\n     *\n     * ```js\n     *   // Simple GET request example:\n     *   $http({\n     *     method: 'GET',\n     *     url: '/someUrl'\n     *   }).then(function successCallback(response) {\n     *       // this callback will be called asynchronously\n     *       // when the response is available\n     *     }, function errorCallback(response) {\n     *       // called asynchronously if an error occurs\n     *       // or server returns response with an error status.\n     *     });\n     * ```\n     *\n     *\n     * ## Shortcut methods\n     *\n     * Shortcut methods are also available. All shortcut methods require passing in the URL, and\n     * request data must be passed in for POST/PUT requests. An optional config can be passed as the\n     * last argument.\n     *\n     * ```js\n     *   $http.get('/someUrl', config).then(successCallback, errorCallback);\n     *   $http.post('/someUrl', data, config).then(successCallback, errorCallback);\n     * ```\n     *\n     * Complete list of shortcut methods:\n     *\n     * - {@link ng.$http#get $http.get}\n     * - {@link ng.$http#head $http.head}\n     * - {@link ng.$http#post $http.post}\n     * - {@link ng.$http#put $http.put}\n     * - {@link ng.$http#delete $http.delete}\n     * - {@link ng.$http#jsonp $http.jsonp}\n     * - {@link ng.$http#patch $http.patch}\n     *\n     *\n     * ## Writing Unit Tests that use $http\n     * When unit testing (using {@link ngMock ngMock}), it is necessary to call\n     * {@link ngMock.$httpBackend#flush $httpBackend.flush()} to flush each pending\n     * request using trained responses.\n     *\n     * ```\n     * $httpBackend.expectGET(...);\n     * $http.get(...);\n     * $httpBackend.flush();\n     * ```\n     *\n     * ## Setting HTTP Headers\n     *\n     * The $http service will automatically add certain HTTP headers to all requests. These defaults\n     * can be fully configured by accessing the `$httpProvider.defaults.headers` configuration\n     * object, which currently contains this default configuration:\n     *\n     * - `$httpProvider.defaults.headers.common` (headers that are common for all requests):\n     *   - <code>Accept: application/json, text/plain, \\*&#65279;/&#65279;\\*</code>\n     * - `$httpProvider.defaults.headers.post`: (header defaults for POST requests)\n     *   - `Content-Type: application/json`\n     * - `$httpProvider.defaults.headers.put` (header defaults for PUT requests)\n     *   - `Content-Type: application/json`\n     *\n     * To add or overwrite these defaults, simply add or remove a property from these configuration\n     * objects. To add headers for an HTTP method other than POST or PUT, simply add a new object\n     * with the lowercased HTTP method name as the key, e.g.\n     * `$httpProvider.defaults.headers.get = { 'My-Header' : 'value' }`.\n     *\n     * The defaults can also be set at runtime via the `$http.defaults` object in the same\n     * fashion. For example:\n     *\n     * ```\n     * module.run(function($http) {\n     *   $http.defaults.headers.common.Authorization = 'Basic YmVlcDpib29w';\n     * });\n     * ```\n     *\n     * In addition, you can supply a `headers` property in the config object passed when\n     * calling `$http(config)`, which overrides the defaults without changing them globally.\n     *\n     * To explicitly remove a header automatically added via $httpProvider.defaults.headers on a per request basis,\n     * Use the `headers` property, setting the desired header to `undefined`. For example:\n     *\n     * ```js\n     * var req = {\n     *  method: 'POST',\n     *  url: 'http://example.com',\n     *  headers: {\n     *    'Content-Type': undefined\n     *  },\n     *  data: { test: 'test' }\n     * }\n     *\n     * $http(req).then(function(){...}, function(){...});\n     * ```\n     *\n     * ## Transforming Requests and Responses\n     *\n     * Both requests and responses can be transformed using transformation functions: `transformRequest`\n     * and `transformResponse`. These properties can be a single function that returns\n     * the transformed value (`function(data, headersGetter, status)`) or an array of such transformation functions,\n     * which allows you to `push` or `unshift` a new transformation function into the transformation chain.\n     *\n     * <div class=\"alert alert-warning\">\n     * **Note:** AngularJS does not make a copy of the `data` parameter before it is passed into the `transformRequest` pipeline.\n     * That means changes to the properties of `data` are not local to the transform function (since Javascript passes objects by reference).\n     * For example, when calling `$http.get(url, $scope.myObject)`, modifications to the object's properties in a transformRequest\n     * function will be reflected on the scope and in any templates where the object is data-bound.\n     * To prevent this, transform functions should have no side-effects.\n     * If you need to modify properties, it is recommended to make a copy of the data, or create new object to return.\n     * </div>\n     *\n     * ### Default Transformations\n     *\n     * The `$httpProvider` provider and `$http` service expose `defaults.transformRequest` and\n     * `defaults.transformResponse` properties. If a request does not provide its own transformations\n     * then these will be applied.\n     *\n     * You can augment or replace the default transformations by modifying these properties by adding to or\n     * replacing the array.\n     *\n     * AngularJS provides the following default transformations:\n     *\n     * Request transformations (`$httpProvider.defaults.transformRequest` and `$http.defaults.transformRequest`) is\n     * an array with one function that does the following:\n     *\n     * - If the `data` property of the request configuration object contains an object, serialize it\n     *   into JSON format.\n     *\n     * Response transformations (`$httpProvider.defaults.transformResponse` and `$http.defaults.transformResponse`) is\n     * an array with one function that does the following:\n     *\n     *  - If XSRF prefix is detected, strip it (see Security Considerations section below).\n     *  - If the `Content-Type` is `application/json` or the response looks like JSON,\n   *      deserialize it using a JSON parser.\n     *\n     *\n     * ### Overriding the Default Transformations Per Request\n     *\n     * If you wish to override the request/response transformations only for a single request then provide\n     * `transformRequest` and/or `transformResponse` properties on the configuration object passed\n     * into `$http`.\n     *\n     * Note that if you provide these properties on the config object the default transformations will be\n     * overwritten. If you wish to augment the default transformations then you must include them in your\n     * local transformation array.\n     *\n     * The following code demonstrates adding a new response transformation to be run after the default response\n     * transformations have been run.\n     *\n     * ```js\n     * function appendTransform(defaults, transform) {\n     *\n     *   // We can't guarantee that the default transformation is an array\n     *   defaults = angular.isArray(defaults) ? defaults : [defaults];\n     *\n     *   // Append the new transformation to the defaults\n     *   return defaults.concat(transform);\n     * }\n     *\n     * $http({\n     *   url: '...',\n     *   method: 'GET',\n     *   transformResponse: appendTransform($http.defaults.transformResponse, function(value) {\n     *     return doTransform(value);\n     *   })\n     * });\n     * ```\n     *\n     *\n     * ## Caching\n     *\n     * {@link ng.$http `$http`} responses are not cached by default. To enable caching, you must\n     * set the config.cache value or the default cache value to TRUE or to a cache object (created\n     * with {@link ng.$cacheFactory `$cacheFactory`}). If defined, the value of config.cache takes\n     * precedence over the default cache value.\n     *\n     * In order to:\n     *   * cache all responses - set the default cache value to TRUE or to a cache object\n     *   * cache a specific response - set config.cache value to TRUE or to a cache object\n     *\n     * If caching is enabled, but neither the default cache nor config.cache are set to a cache object,\n     * then the default `$cacheFactory(\"$http\")` object is used.\n     *\n     * The default cache value can be set by updating the\n     * {@link ng.$http#defaults `$http.defaults.cache`} property or the\n     * {@link $httpProvider#defaults `$httpProvider.defaults.cache`} property.\n     *\n     * When caching is enabled, {@link ng.$http `$http`} stores the response from the server using\n     * the relevant cache object. The next time the same request is made, the response is returned\n     * from the cache without sending a request to the server.\n     *\n     * Take note that:\n     *\n     *   * Only GET and JSONP requests are cached.\n     *   * The cache key is the request URL including search parameters; headers are not considered.\n     *   * Cached responses are returned asynchronously, in the same way as responses from the server.\n     *   * If multiple identical requests are made using the same cache, which is not yet populated,\n     *     one request will be made to the server and remaining requests will return the same response.\n     *   * A cache-control header on the response does not affect if or how responses are cached.\n     *\n     *\n     * ## Interceptors\n     *\n     * Before you start creating interceptors, be sure to understand the\n     * {@link ng.$q $q and deferred/promise APIs}.\n     *\n     * For purposes of global error handling, authentication, or any kind of synchronous or\n     * asynchronous pre-processing of request or postprocessing of responses, it is desirable to be\n     * able to intercept requests before they are handed to the server and\n     * responses before they are handed over to the application code that\n     * initiated these requests. The interceptors leverage the {@link ng.$q\n     * promise APIs} to fulfill this need for both synchronous and asynchronous pre-processing.\n     *\n     * The interceptors are service factories that are registered with the `$httpProvider` by\n     * adding them to the `$httpProvider.interceptors` array. The factory is called and\n     * injected with dependencies (if specified) and returns the interceptor.\n     *\n     * There are two kinds of interceptors (and two kinds of rejection interceptors):\n     *\n     *   * `request`: interceptors get called with a http {@link $http#usage config} object. The function is free to\n     *     modify the `config` object or create a new one. The function needs to return the `config`\n     *     object directly, or a promise containing the `config` or a new `config` object.\n     *   * `requestError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *   * `response`: interceptors get called with http `response` object. The function is free to\n     *     modify the `response` object or create a new one. The function needs to return the `response`\n     *     object directly, or as a promise containing the `response` or a new `response` object.\n     *   * `responseError`: interceptor gets called when a previous interceptor threw an error or\n     *     resolved with a rejection.\n     *\n     *\n     * ```js\n     *   // register the interceptor as a service\n     *   $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {\n     *     return {\n     *       // optional method\n     *       'request': function(config) {\n     *         // do something on success\n     *         return config;\n     *       },\n     *\n     *       // optional method\n     *      'requestError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       },\n     *\n     *\n     *\n     *       // optional method\n     *       'response': function(response) {\n     *         // do something on success\n     *         return response;\n     *       },\n     *\n     *       // optional method\n     *      'responseError': function(rejection) {\n     *         // do something on error\n     *         if (canRecover(rejection)) {\n     *           return responseOrNewPromise\n     *         }\n     *         return $q.reject(rejection);\n     *       }\n     *     };\n     *   });\n     *\n     *   $httpProvider.interceptors.push('myHttpInterceptor');\n     *\n     *\n     *   // alternatively, register the interceptor via an anonymous factory\n     *   $httpProvider.interceptors.push(function($q, dependency1, dependency2) {\n     *     return {\n     *      'request': function(config) {\n     *          // same as above\n     *       },\n     *\n     *       'response': function(response) {\n     *          // same as above\n     *       }\n     *     };\n     *   });\n     * ```\n     *\n     * ## Security Considerations\n     *\n     * When designing web applications, consider security threats from:\n     *\n     * - [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * - [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)\n     *\n     * Both server and the client must cooperate in order to eliminate these threats. AngularJS comes\n     * pre-configured with strategies that address these issues, but for this to work backend server\n     * cooperation is required.\n     *\n     * ### JSON Vulnerability Protection\n     *\n     * A [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n     * allows third party website to turn your JSON resource URL into\n     * [JSONP](http://en.wikipedia.org/wiki/JSONP) request under some conditions. To\n     * counter this your server can prefix all JSON requests with following string `\")]}',\\n\"`.\n     * AngularJS will automatically strip the prefix before processing it as JSON.\n     *\n     * For example if your server needs to return:\n     * ```js\n     * ['one','two']\n     * ```\n     *\n     * which is vulnerable to attack, your server can return:\n     * ```js\n     * )]}',\n     * ['one','two']\n     * ```\n     *\n     * AngularJS will strip the prefix, before processing the JSON.\n     *\n     *\n     * ### Cross Site Request Forgery (XSRF) Protection\n     *\n     * [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) is an attack technique by\n     * which the attacker can trick an authenticated user into unknowingly executing actions on your\n     * website. AngularJS provides a mechanism to counter XSRF. When performing XHR requests, the\n     * $http service reads a token from a cookie (by default, `XSRF-TOKEN`) and sets it as an HTTP\n     * header (by default `X-XSRF-TOKEN`). Since only JavaScript that runs on your domain could read\n     * the cookie, your server can be assured that the XHR came from JavaScript running on your\n     * domain.\n     *\n     * To take advantage of this, your server needs to set a token in a JavaScript readable session\n     * cookie called `XSRF-TOKEN` on the first HTTP GET request. On subsequent XHR requests the\n     * server can verify that the cookie matches the `X-XSRF-TOKEN` HTTP header, and therefore be\n     * sure that only JavaScript running on your domain could have sent the request. The token must\n     * be unique for each user and must be verifiable by the server (to prevent the JavaScript from\n     * making up its own tokens). We recommend that the token is a digest of your site's\n     * authentication cookie with a [salt](https://en.wikipedia.org/wiki/Salt_(cryptography&#41;)\n     * for added security.\n     *\n     * The header will &mdash; by default &mdash; **not** be set for cross-domain requests. This\n     * prevents unauthorized servers (e.g. malicious or compromised 3rd-party APIs) from gaining\n     * access to your users' XSRF tokens and exposing them to Cross Site Request Forgery. If you\n     * want to, you can trust additional origins to also receive the XSRF token, by adding them\n     * to {@link ng.$httpProvider#xsrfTrustedOrigins xsrfTrustedOrigins}. This might be\n     * useful, for example, if your application, served from `example.com`, needs to access your API\n     * at `api.example.com`.\n     * See {@link ng.$httpProvider#xsrfTrustedOrigins $httpProvider.xsrfTrustedOrigins} for\n     * more details.\n     *\n     * <div class=\"alert alert-danger\">\n     *   **Warning**<br />\n     *   Only trusted origins that you have control over and make sure you understand the\n     *   implications of doing so.\n     * </div>\n     *\n     * The name of the cookie and the header can be specified using the `xsrfCookieName` and\n     * `xsrfHeaderName` properties of either `$httpProvider.defaults` at config-time,\n     * `$http.defaults` at run-time, or the per-request config object.\n     *\n     * In order to prevent collisions in environments where multiple AngularJS apps share the\n     * same domain or subdomain, we recommend that each application uses a unique cookie name.\n     *\n     *\n     * @param {object} config Object describing the request to be made and how it should be\n     *    processed. The object has following properties:\n     *\n     *    - **method** – `{string}` – HTTP method (e.g. 'GET', 'POST', etc)\n     *    - **url** – `{string|TrustedObject}` – Absolute or relative URL of the resource that is being requested;\n     *      or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     *    - **params** – `{Object.<string|Object>}` – Map of strings or objects which will be serialized\n     *      with the `paramSerializer` and appended as GET parameters.\n     *    - **data** – `{string|Object}` – Data to be sent as the request message data.\n     *    - **headers** – `{Object}` – Map of strings or functions which return strings representing\n     *      HTTP headers to send to the server. If the return value of a function is null, the\n     *      header will not be sent. Functions accept a config object as an argument.\n     *    - **eventHandlers** - `{Object}` - Event listeners to be bound to the XMLHttpRequest object.\n     *      To bind events to the XMLHttpRequest upload object, use `uploadEventHandlers`.\n     *      The handler will be called in the context of a `$apply` block.\n     *    - **uploadEventHandlers** - `{Object}` - Event listeners to be bound to the XMLHttpRequest upload\n     *      object. To bind events to the XMLHttpRequest object, use `eventHandlers`.\n     *      The handler will be called in the context of a `$apply` block.\n     *    - **xsrfHeaderName** – `{string}` – Name of HTTP header to populate with the XSRF token.\n     *    - **xsrfCookieName** – `{string}` – Name of cookie containing the XSRF token.\n     *    - **transformRequest** –\n     *      `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      request body and headers and returns its transformed (typically serialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **transformResponse** –\n     *      `{function(data, headersGetter, status)|Array.<function(data, headersGetter, status)>}` –\n     *      transform function or an array of such functions. The transform function takes the http\n     *      response body, headers and status and returns its transformed (typically deserialized) version.\n     *      See {@link ng.$http#overriding-the-default-transformations-per-request\n     *      Overriding the Default Transformations}\n     *    - **paramSerializer** - `{string|function(Object<string,string>):string}` - A function used to\n     *      prepare the string representation of request parameters (specified as an object).\n     *      If specified as string, it is interpreted as function registered with the\n     *      {@link $injector $injector}, which means you can create your own serializer\n     *      by registering it as a {@link auto.$provide#service service}.\n     *      The default serializer is the {@link $httpParamSerializer $httpParamSerializer};\n     *      alternatively, you can use the {@link $httpParamSerializerJQLike $httpParamSerializerJQLike}\n     *    - **cache** – `{boolean|Object}` – A boolean value or object created with\n     *      {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of the HTTP response.\n     *      See {@link $http#caching $http Caching} for more information.\n     *    - **timeout** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise}\n     *      that should abort the request when resolved.\n     *\n     *      A numerical timeout or a promise returned from {@link ng.$timeout $timeout}, will set\n     *      the `xhrStatus` in the {@link $http#$http-returns response} to \"timeout\", and any other\n     *      resolved promise will set it to \"abort\", following standard XMLHttpRequest behavior.\n     *\n     *    - **withCredentials** - `{boolean}` - whether to set the `withCredentials` flag on the\n     *      XHR object. See [requests with credentials](https://developer.mozilla.org/docs/Web/HTTP/Access_control_CORS#Requests_with_credentials)\n     *      for more information.\n     *    - **responseType** - `{string}` - see\n     *      [XMLHttpRequest.responseType](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest#xmlhttprequest-responsetype).\n     *\n     * @returns {HttpPromise} A {@link ng.$q `Promise}` that will be resolved (request success)\n     *   or rejected (request failure) with a response object.\n     *\n     *   The response object has these properties:\n     *\n     *   - **data** – `{string|Object}` – The response body transformed with\n     *     the transform functions.\n     *   - **status** – `{number}` – HTTP status code of the response.\n     *   - **headers** – `{function([headerName])}` – Header getter function.\n     *   - **config** – `{Object}` – The configuration object that was used\n     *     to generate the request.\n     *   - **statusText** – `{string}` – HTTP status text of the response.\n     *   - **xhrStatus** – `{string}` – Status of the XMLHttpRequest\n     *     (`complete`, `error`, `timeout` or `abort`).\n     *\n     *\n     *   A response status code between 200 and 299 is considered a success status\n     *   and will result in the success callback being called. Any response status\n     *   code outside of that range is considered an error status and will result\n     *   in the error callback being called.\n     *   Also, status codes less than -1 are normalized to zero. -1 usually means\n     *   the request was aborted, e.g. using a `config.timeout`. More information\n     *   about the status might be available in the `xhrStatus` property.\n     *\n     *   Note that if the response is a redirect, XMLHttpRequest will transparently\n     *   follow it, meaning that the outcome (success or error) will be determined\n     *   by the final response status code.\n     *\n     *\n     * @property {Array.<Object>} pendingRequests Array of config objects for currently pending\n     *   requests. This is primarily meant to be used for debugging purposes.\n     *\n     *\n     * @example\n<example module=\"httpExample\" name=\"http-service\">\n<file name=\"index.html\">\n  <div ng-controller=\"FetchController\">\n    <select ng-model=\"method\" aria-label=\"Request method\">\n      <option>GET</option>\n      <option>JSONP</option>\n    </select>\n    <input type=\"text\" ng-model=\"url\" size=\"80\" aria-label=\"URL\" />\n    <button id=\"fetchbtn\" ng-click=\"fetch()\">fetch</button><br>\n    <button id=\"samplegetbtn\" ng-click=\"updateModel('GET', 'http-hello.html')\">Sample GET</button>\n    <button id=\"samplejsonpbtn\"\n      ng-click=\"updateModel('JSONP',\n                    'https://angularjs.org/greet.php?name=Super%20Hero')\">\n      Sample JSONP\n    </button>\n    <button id=\"invalidjsonpbtn\"\n      ng-click=\"updateModel('JSONP', 'https://angularjs.org/doesntexist')\">\n        Invalid JSONP\n      </button>\n    <pre>http status code: {{status}}</pre>\n    <pre>http response data: {{data}}</pre>\n  </div>\n</file>\n<file name=\"script.js\">\n  angular.module('httpExample', [])\n    .config(['$sceDelegateProvider', function($sceDelegateProvider) {\n      // We must add the JSONP endpoint that we are using to the trusted list to show that we trust it\n      $sceDelegateProvider.trustedResourceUrlList([\n        'self',\n        'https://angularjs.org/**'\n      ]);\n    }])\n    .controller('FetchController', ['$scope', '$http', '$templateCache',\n      function($scope, $http, $templateCache) {\n        $scope.method = 'GET';\n        $scope.url = 'http-hello.html';\n\n        $scope.fetch = function() {\n          $scope.code = null;\n          $scope.response = null;\n\n          $http({method: $scope.method, url: $scope.url, cache: $templateCache}).\n            then(function(response) {\n              $scope.status = response.status;\n              $scope.data = response.data;\n            }, function(response) {\n              $scope.data = response.data || 'Request failed';\n              $scope.status = response.status;\n          });\n        };\n\n        $scope.updateModel = function(method, url) {\n          $scope.method = method;\n          $scope.url = url;\n        };\n      }]);\n</file>\n<file name=\"http-hello.html\">\n  Hello, $http!\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  var status = element(by.binding('status'));\n  var data = element(by.binding('data'));\n  var fetchBtn = element(by.id('fetchbtn'));\n  var sampleGetBtn = element(by.id('samplegetbtn'));\n  var invalidJsonpBtn = element(by.id('invalidjsonpbtn'));\n\n  it('should make an xhr GET request', function() {\n    sampleGetBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('200');\n    expect(data.getText()).toMatch(/Hello, \\$http!/);\n  });\n\n// Commented out due to flakes. See https://github.com/angular/angular.js/issues/9185\n// it('should make a JSONP request to angularjs.org', function() {\n//   var sampleJsonpBtn = element(by.id('samplejsonpbtn'));\n//   sampleJsonpBtn.click();\n//   fetchBtn.click();\n//   expect(status.getText()).toMatch('200');\n//   expect(data.getText()).toMatch(/Super Hero!/);\n// });\n\n  it('should make JSONP request to invalid URL and invoke the error handler',\n      function() {\n    invalidJsonpBtn.click();\n    fetchBtn.click();\n    expect(status.getText()).toMatch('0');\n    expect(data.getText()).toMatch('Request failed');\n  });\n</file>\n</example>\n     */\n    function $http(requestConfig) {\n\n      if (!isObject(requestConfig)) {\n        throw minErr('$http')('badreq', 'Http request configuration must be an object.  Received: {0}', requestConfig);\n      }\n\n      if (!isString($sce.valueOf(requestConfig.url))) {\n        throw minErr('$http')('badreq', 'Http request configuration url must be a string or a $sce trusted object.  Received: {0}', requestConfig.url);\n      }\n\n      var config = extend({\n        method: 'get',\n        transformRequest: defaults.transformRequest,\n        transformResponse: defaults.transformResponse,\n        paramSerializer: defaults.paramSerializer,\n        jsonpCallbackParam: defaults.jsonpCallbackParam\n      }, requestConfig);\n\n      config.headers = mergeHeaders(requestConfig);\n      config.method = uppercase(config.method);\n      config.paramSerializer = isString(config.paramSerializer) ?\n          $injector.get(config.paramSerializer) : config.paramSerializer;\n\n      $browser.$$incOutstandingRequestCount('$http');\n\n      var requestInterceptors = [];\n      var responseInterceptors = [];\n      var promise = $q.resolve(config);\n\n      // apply interceptors\n      forEach(reversedInterceptors, function(interceptor) {\n        if (interceptor.request || interceptor.requestError) {\n          requestInterceptors.unshift(interceptor.request, interceptor.requestError);\n        }\n        if (interceptor.response || interceptor.responseError) {\n          responseInterceptors.push(interceptor.response, interceptor.responseError);\n        }\n      });\n\n      promise = chainInterceptors(promise, requestInterceptors);\n      promise = promise.then(serverRequest);\n      promise = chainInterceptors(promise, responseInterceptors);\n      promise = promise.finally(completeOutstandingRequest);\n\n      return promise;\n\n\n      function chainInterceptors(promise, interceptors) {\n        for (var i = 0, ii = interceptors.length; i < ii;) {\n          var thenFn = interceptors[i++];\n          var rejectFn = interceptors[i++];\n\n          promise = promise.then(thenFn, rejectFn);\n        }\n\n        interceptors.length = 0;\n\n        return promise;\n      }\n\n      function completeOutstandingRequest() {\n        $browser.$$completeOutstandingRequest(noop, '$http');\n      }\n\n      function executeHeaderFns(headers, config) {\n        var headerContent, processedHeaders = {};\n\n        forEach(headers, function(headerFn, header) {\n          if (isFunction(headerFn)) {\n            headerContent = headerFn(config);\n            if (headerContent != null) {\n              processedHeaders[header] = headerContent;\n            }\n          } else {\n            processedHeaders[header] = headerFn;\n          }\n        });\n\n        return processedHeaders;\n      }\n\n      function mergeHeaders(config) {\n        var defHeaders = defaults.headers,\n            reqHeaders = extend({}, config.headers),\n            defHeaderName, lowercaseDefHeaderName, reqHeaderName;\n\n        defHeaders = extend({}, defHeaders.common, defHeaders[lowercase(config.method)]);\n\n        // using for-in instead of forEach to avoid unnecessary iteration after header has been found\n        defaultHeadersIteration:\n        for (defHeaderName in defHeaders) {\n          lowercaseDefHeaderName = lowercase(defHeaderName);\n\n          for (reqHeaderName in reqHeaders) {\n            if (lowercase(reqHeaderName) === lowercaseDefHeaderName) {\n              continue defaultHeadersIteration;\n            }\n          }\n\n          reqHeaders[defHeaderName] = defHeaders[defHeaderName];\n        }\n\n        // execute if header value is a function for merged headers\n        return executeHeaderFns(reqHeaders, shallowCopy(config));\n      }\n\n      function serverRequest(config) {\n        var headers = config.headers;\n        var reqData = transformData(config.data, headersGetter(headers), undefined, config.transformRequest);\n\n        // strip content-type if data is undefined\n        if (isUndefined(reqData)) {\n          forEach(headers, function(value, header) {\n            if (lowercase(header) === 'content-type') {\n              delete headers[header];\n            }\n          });\n        }\n\n        if (isUndefined(config.withCredentials) && !isUndefined(defaults.withCredentials)) {\n          config.withCredentials = defaults.withCredentials;\n        }\n\n        // send request\n        return sendReq(config, reqData).then(transformResponse, transformResponse);\n      }\n\n      function transformResponse(response) {\n        // make a copy since the response must be cacheable\n        var resp = extend({}, response);\n        resp.data = transformData(response.data, response.headers, response.status,\n                                  config.transformResponse);\n        return (isSuccess(response.status))\n          ? resp\n          : $q.reject(resp);\n      }\n    }\n\n    $http.pendingRequests = [];\n\n    /**\n     * @ngdoc method\n     * @name $http#get\n     *\n     * @description\n     * Shortcut method to perform `GET` request.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#delete\n     *\n     * @description\n     * Shortcut method to perform `DELETE` request.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#head\n     *\n     * @description\n     * Shortcut method to perform `HEAD` request.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#jsonp\n     *\n     * @description\n     * Shortcut method to perform `JSONP` request.\n     *\n     * Note that, since JSONP requests are sensitive because the response is given full access to the browser,\n     * the url must be declared, via {@link $sce} as a trusted resource URL.\n     * You can trust a URL by adding it to the trusted resource URL list via\n     * {@link $sceDelegateProvider#trustedResourceUrlList  `$sceDelegateProvider.trustedResourceUrlList`} or\n     * by explicitly trusting the URL via {@link $sce#trustAsResourceUrl `$sce.trustAsResourceUrl(url)`}.\n     *\n     * You should avoid generating the URL for the JSONP request from user provided data.\n     * Provide additional query parameters via `params` property of the `config` parameter, rather than\n     * modifying the URL itself.\n     *\n     * JSONP requests must specify a callback to be used in the response from the server. This callback\n     * is passed as a query parameter in the request. You must specify the name of this parameter by\n     * setting the `jsonpCallbackParam` property on the request config object.\n     *\n     * ```\n     * $http.jsonp('some/trusted/url', {jsonpCallbackParam: 'callback'})\n     * ```\n     *\n     * You can also specify a default callback parameter name in `$http.defaults.jsonpCallbackParam`.\n     * Initially this is set to `'callback'`.\n     *\n     * <div class=\"alert alert-danger\">\n     * You can no longer use the `JSON_CALLBACK` string as a placeholder for specifying where the callback\n     * parameter value should go.\n     * </div>\n     *\n     * If you would like to customise where and how the callbacks are stored then try overriding\n     * or decorating the {@link $jsonpCallbacks} service.\n     *\n     * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested;\n     *                                   or an object created by a call to `$sce.trustAsResourceUrl(url)`.\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n    createShortMethods('get', 'delete', 'head', 'jsonp');\n\n    /**\n     * @ngdoc method\n     * @name $http#post\n     *\n     * @description\n     * Shortcut method to perform `POST` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $http#put\n     *\n     * @description\n     * Shortcut method to perform `PUT` request.\n     *\n     * @param {string} url Relative or absolute URL specifying the destination of the request\n     * @param {*} data Request content\n     * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n     * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n     * See {@link ng.$http#$http-returns `$http()` return value}.\n     */\n\n     /**\n      * @ngdoc method\n      * @name $http#patch\n      *\n      * @description\n      * Shortcut method to perform `PATCH` request.\n      *\n      * @param {string} url Relative or absolute URL specifying the destination of the request\n      * @param {*} data Request content\n      * @param {Object=} config Optional configuration object. See {@link ng.$http#$http-arguments `$http()` arguments}.\n      * @returns {HttpPromise}  A Promise that will be resolved or rejected with a response object.\n      * See {@link ng.$http#$http-returns `$http()` return value}.\n      */\n    createShortMethodsWithData('post', 'put', 'patch');\n\n        /**\n         * @ngdoc property\n         * @name $http#defaults\n         *\n         * @description\n         * Runtime equivalent of the `$httpProvider.defaults` property. Allows configuration of\n         * default headers, withCredentials as well as request and response transformations.\n         *\n         * See \"Setting HTTP Headers\" and \"Transforming Requests and Responses\" sections above.\n         */\n    $http.defaults = defaults;\n\n\n    return $http;\n\n\n    function createShortMethods(names) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, config) {\n          return $http(extend({}, config || {}, {\n            method: name,\n            url: url\n          }));\n        };\n      });\n    }\n\n\n    function createShortMethodsWithData(name) {\n      forEach(arguments, function(name) {\n        $http[name] = function(url, data, config) {\n          return $http(extend({}, config || {}, {\n            method: name,\n            url: url,\n            data: data\n          }));\n        };\n      });\n    }\n\n\n    /**\n     * Makes the request.\n     *\n     * !!! ACCESSES CLOSURE VARS:\n     * $httpBackend, defaults, $log, $rootScope, defaultCache, $http.pendingRequests\n     */\n    function sendReq(config, reqData) {\n      var deferred = $q.defer(),\n          promise = deferred.promise,\n          cache,\n          cachedResp,\n          reqHeaders = config.headers,\n          isJsonp = lowercase(config.method) === 'jsonp',\n          url = config.url;\n\n      if (isJsonp) {\n        // JSONP is a pretty sensitive operation where we're allowing a script to have full access to\n        // our DOM and JS space.  So we require that the URL satisfies SCE.RESOURCE_URL.\n        url = $sce.getTrustedResourceUrl(url);\n      } else if (!isString(url)) {\n        // If it is not a string then the URL must be a $sce trusted object\n        url = $sce.valueOf(url);\n      }\n\n      url = buildUrl(url, config.paramSerializer(config.params));\n\n      if (isJsonp) {\n        // Check the url and add the JSONP callback placeholder\n        url = sanitizeJsonpCallbackParam(url, config.jsonpCallbackParam);\n      }\n\n      $http.pendingRequests.push(config);\n      promise.then(removePendingReq, removePendingReq);\n\n      if ((config.cache || defaults.cache) && config.cache !== false &&\n          (config.method === 'GET' || config.method === 'JSONP')) {\n        cache = isObject(config.cache) ? config.cache\n            : isObject(/** @type {?} */ (defaults).cache)\n              ? /** @type {?} */ (defaults).cache\n              : defaultCache;\n      }\n\n      if (cache) {\n        cachedResp = cache.get(url);\n        if (isDefined(cachedResp)) {\n          if (isPromiseLike(cachedResp)) {\n            // cached request has already been sent, but there is no response yet\n            cachedResp.then(resolvePromiseWithResult, resolvePromiseWithResult);\n          } else {\n            // serving from cache\n            if (isArray(cachedResp)) {\n              resolvePromise(cachedResp[1], cachedResp[0], shallowCopy(cachedResp[2]), cachedResp[3], cachedResp[4]);\n            } else {\n              resolvePromise(cachedResp, 200, {}, 'OK', 'complete');\n            }\n          }\n        } else {\n          // put the promise for the non-transformed response into cache as a placeholder\n          cache.put(url, promise);\n        }\n      }\n\n\n      // if we won't have the response in cache, set the xsrf headers and\n      // send the request to the backend\n      if (isUndefined(cachedResp)) {\n        var xsrfValue = urlIsAllowedOrigin(config.url)\n            ? $$cookieReader()[config.xsrfCookieName || defaults.xsrfCookieName]\n            : undefined;\n        if (xsrfValue) {\n          reqHeaders[(config.xsrfHeaderName || defaults.xsrfHeaderName)] = xsrfValue;\n        }\n\n        $httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout,\n            config.withCredentials, config.responseType,\n            createApplyHandlers(config.eventHandlers),\n            createApplyHandlers(config.uploadEventHandlers));\n      }\n\n      return promise;\n\n      function createApplyHandlers(eventHandlers) {\n        if (eventHandlers) {\n          var applyHandlers = {};\n          forEach(eventHandlers, function(eventHandler, key) {\n            applyHandlers[key] = function(event) {\n              if (useApplyAsync) {\n                $rootScope.$applyAsync(callEventHandler);\n              } else if ($rootScope.$$phase) {\n                callEventHandler();\n              } else {\n                $rootScope.$apply(callEventHandler);\n              }\n\n              function callEventHandler() {\n                eventHandler(event);\n              }\n            };\n          });\n          return applyHandlers;\n        }\n      }\n\n\n      /**\n       * Callback registered to $httpBackend():\n       *  - caches the response if desired\n       *  - resolves the raw $http promise\n       *  - calls $apply\n       */\n      function done(status, response, headersString, statusText, xhrStatus) {\n        if (cache) {\n          if (isSuccess(status)) {\n            cache.put(url, [status, response, parseHeaders(headersString), statusText, xhrStatus]);\n          } else {\n            // remove promise from the cache\n            cache.remove(url);\n          }\n        }\n\n        function resolveHttpPromise() {\n          resolvePromise(response, status, headersString, statusText, xhrStatus);\n        }\n\n        if (useApplyAsync) {\n          $rootScope.$applyAsync(resolveHttpPromise);\n        } else {\n          resolveHttpPromise();\n          if (!$rootScope.$$phase) $rootScope.$apply();\n        }\n      }\n\n\n      /**\n       * Resolves the raw $http promise.\n       */\n      function resolvePromise(response, status, headers, statusText, xhrStatus) {\n        //status: HTTP response status code, 0, -1 (aborted by timeout / promise)\n        status = status >= -1 ? status : 0;\n\n        (isSuccess(status) ? deferred.resolve : deferred.reject)({\n          data: response,\n          status: status,\n          headers: headersGetter(headers),\n          config: config,\n          statusText: statusText,\n          xhrStatus: xhrStatus\n        });\n      }\n\n      function resolvePromiseWithResult(result) {\n        resolvePromise(result.data, result.status, shallowCopy(result.headers()), result.statusText, result.xhrStatus);\n      }\n\n      function removePendingReq() {\n        var idx = $http.pendingRequests.indexOf(config);\n        if (idx !== -1) $http.pendingRequests.splice(idx, 1);\n      }\n    }\n\n\n    function buildUrl(url, serializedParams) {\n      if (serializedParams.length > 0) {\n        url += ((url.indexOf('?') === -1) ? '?' : '&') + serializedParams;\n      }\n      return url;\n    }\n\n    function sanitizeJsonpCallbackParam(url, cbKey) {\n      var parts = url.split('?');\n      if (parts.length > 2) {\n        // Throw if the url contains more than one `?` query indicator\n        throw $httpMinErr('badjsonp', 'Illegal use more than one \"?\", in url, \"{1}\"', url);\n      }\n      var params = parseKeyValue(parts[1]);\n      forEach(params, function(value, key) {\n        if (value === 'JSON_CALLBACK') {\n          // Throw if the url already contains a reference to JSON_CALLBACK\n          throw $httpMinErr('badjsonp', 'Illegal use of JSON_CALLBACK in url, \"{0}\"', url);\n        }\n        if (key === cbKey) {\n          // Throw if the callback param was already provided\n          throw $httpMinErr('badjsonp', 'Illegal use of callback param, \"{0}\", in url, \"{1}\"', cbKey, url);\n        }\n      });\n\n      // Add in the JSON_CALLBACK callback param value\n      url += ((url.indexOf('?') === -1) ? '?' : '&') + cbKey + '=JSON_CALLBACK';\n\n      return url;\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $xhrFactory\n * @this\n *\n * @description\n * Factory function used to create XMLHttpRequest objects.\n *\n * Replace or decorate this service to create your own custom XMLHttpRequest objects.\n *\n * ```\n * angular.module('myApp', [])\n * .factory('$xhrFactory', function() {\n *   return function createXhr(method, url) {\n *     return new window.XMLHttpRequest({mozSystem: true});\n *   };\n * });\n * ```\n *\n * @param {string} method HTTP method of the request (GET, POST, PUT, ..)\n * @param {string} url URL of the request.\n */\nfunction $xhrFactoryProvider() {\n  this.$get = function() {\n    return function createXhr() {\n      return new window.XMLHttpRequest();\n    };\n  };\n}\n\n/**\n * @ngdoc service\n * @name $httpBackend\n * @requires $jsonpCallbacks\n * @requires $document\n * @requires $xhrFactory\n * @this\n *\n * @description\n * HTTP backend used by the {@link ng.$http service} that delegates to\n * XMLHttpRequest object or JSONP and deals with browser incompatibilities.\n *\n * You should never need to use this service directly, instead use the higher-level abstractions:\n * {@link ng.$http $http} or {@link ngResource.$resource $resource}.\n *\n * During testing this implementation is swapped with {@link ngMock.$httpBackend mock\n * $httpBackend} which can be trained with responses.\n */\nfunction $HttpBackendProvider() {\n  this.$get = ['$browser', '$jsonpCallbacks', '$document', '$xhrFactory', function($browser, $jsonpCallbacks, $document, $xhrFactory) {\n    return createHttpBackend($browser, $xhrFactory, $browser.defer, $jsonpCallbacks, $document[0]);\n  }];\n}\n\nfunction createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDocument) {\n  // TODO(vojta): fix the signature\n  return function(method, url, post, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers) {\n    url = url || $browser.url();\n\n    if (lowercase(method) === 'jsonp') {\n      var callbackPath = callbacks.createCallback(url);\n      var jsonpDone = jsonpReq(url, callbackPath, function(status, text) {\n        // jsonpReq only ever sets status to 200 (OK), 404 (ERROR) or -1 (WAITING)\n        var response = (status === 200) && callbacks.getResponse(callbackPath);\n        completeRequest(callback, status, response, '', text, 'complete');\n        callbacks.removeCallback(callbackPath);\n      });\n    } else {\n\n      var xhr = createXhr(method, url);\n      var abortedByTimeout = false;\n\n      xhr.open(method, url, true);\n      forEach(headers, function(value, key) {\n        if (isDefined(value)) {\n            xhr.setRequestHeader(key, value);\n        }\n      });\n\n      xhr.onload = function requestLoaded() {\n        var statusText = xhr.statusText || '';\n\n        // responseText is the old-school way of retrieving response (supported by IE9)\n        // response/responseType properties were introduced in XHR Level2 spec (supported by IE10)\n        var response = ('response' in xhr) ? xhr.response : xhr.responseText;\n\n        // normalize IE9 bug (http://bugs.jquery.com/ticket/1450)\n        var status = xhr.status === 1223 ? 204 : xhr.status;\n\n        // fix status code when it is 0 (0 status is undocumented).\n        // Occurs when accessing file resources or on Android 4.1 stock browser\n        // while retrieving files from application cache.\n        if (status === 0) {\n          status = response ? 200 : urlResolve(url).protocol === 'file' ? 404 : 0;\n        }\n\n        completeRequest(callback,\n            status,\n            response,\n            xhr.getAllResponseHeaders(),\n            statusText,\n            'complete');\n      };\n\n      var requestError = function() {\n        // The response is always empty\n        // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error\n        completeRequest(callback, -1, null, null, '', 'error');\n      };\n\n      var requestAborted = function() {\n        completeRequest(callback, -1, null, null, '', abortedByTimeout ? 'timeout' : 'abort');\n      };\n\n      var requestTimeout = function() {\n        // The response is always empty\n        // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error\n        completeRequest(callback, -1, null, null, '', 'timeout');\n      };\n\n      xhr.onerror = requestError;\n      xhr.ontimeout = requestTimeout;\n      xhr.onabort = requestAborted;\n\n      forEach(eventHandlers, function(value, key) {\n        xhr.addEventListener(key, value);\n      });\n\n      forEach(uploadEventHandlers, function(value, key) {\n        xhr.upload.addEventListener(key, value);\n      });\n\n      if (withCredentials) {\n        xhr.withCredentials = true;\n      }\n\n      if (responseType) {\n        try {\n          xhr.responseType = responseType;\n        } catch (e) {\n          // WebKit added support for the json responseType value on 09/03/2013\n          // https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are\n          // known to throw when setting the value \"json\" as the response type. Other older\n          // browsers implementing the responseType\n          //\n          // The json response type can be ignored if not supported, because JSON payloads are\n          // parsed on the client-side regardless.\n          if (responseType !== 'json') {\n            throw e;\n          }\n        }\n      }\n\n      xhr.send(isUndefined(post) ? null : post);\n    }\n\n    // Since we are using xhr.abort() when a request times out, we have to set a flag that\n    // indicates to requestAborted if the request timed out or was aborted.\n    //\n    // http.timeout = numerical timeout   timeout\n    // http.timeout = $timeout            timeout\n    // http.timeout = promise             abort\n    // xhr.abort()                        abort (The xhr object is normally inaccessible, but\n    //                                    can be exposed with the xhrFactory)\n    if (timeout > 0) {\n      var timeoutId = $browserDefer(function() {\n        timeoutRequest('timeout');\n      }, timeout);\n    } else if (isPromiseLike(timeout)) {\n      timeout.then(function() {\n        timeoutRequest(isDefined(timeout.$$timeoutId) ? 'timeout' : 'abort');\n      });\n    }\n\n    function timeoutRequest(reason) {\n      abortedByTimeout = reason === 'timeout';\n      if (jsonpDone) {\n        jsonpDone();\n      }\n      if (xhr) {\n        xhr.abort();\n      }\n    }\n\n    function completeRequest(callback, status, response, headersString, statusText, xhrStatus) {\n      // cancel timeout and subsequent timeout promise resolution\n      if (isDefined(timeoutId)) {\n        $browserDefer.cancel(timeoutId);\n      }\n      jsonpDone = xhr = null;\n\n      callback(status, response, headersString, statusText, xhrStatus);\n    }\n  };\n\n  function jsonpReq(url, callbackPath, done) {\n    url = url.replace('JSON_CALLBACK', callbackPath);\n    // we can't use jQuery/jqLite here because jQuery does crazy stuff with script elements, e.g.:\n    // - fetches local scripts via XHR and evals them\n    // - adds and immediately removes script elements from the document\n    var script = rawDocument.createElement('script'), callback = null;\n    script.type = 'text/javascript';\n    script.src = url;\n    script.async = true;\n\n    callback = function(event) {\n      script.removeEventListener('load', callback);\n      script.removeEventListener('error', callback);\n      rawDocument.body.removeChild(script);\n      script = null;\n      var status = -1;\n      var text = 'unknown';\n\n      if (event) {\n        if (event.type === 'load' && !callbacks.wasCalled(callbackPath)) {\n          event = { type: 'error' };\n        }\n        text = event.type;\n        status = event.type === 'error' ? 404 : 200;\n      }\n\n      if (done) {\n        done(status, text);\n      }\n    };\n\n    script.addEventListener('load', callback);\n    script.addEventListener('error', callback);\n    rawDocument.body.appendChild(script);\n    return callback;\n  }\n}\n\nvar $interpolateMinErr = angular.$interpolateMinErr = minErr('$interpolate');\n$interpolateMinErr.throwNoconcat = function(text) {\n  throw $interpolateMinErr('noconcat',\n      'Error while interpolating: {0}\\nStrict Contextual Escaping disallows ' +\n      'interpolations that concatenate multiple expressions when a trusted value is ' +\n      'required.  See http://docs.angularjs.org/api/ng.$sce', text);\n};\n\n$interpolateMinErr.interr = function(text, err) {\n  return $interpolateMinErr('interr', 'Can\\'t interpolate: {0}\\n{1}', text, err.toString());\n};\n\n/**\n * @ngdoc provider\n * @name $interpolateProvider\n * @this\n *\n * @description\n *\n * Used for configuring the interpolation markup. Defaults to `{{` and `}}`.\n *\n * <div class=\"alert alert-danger\">\n * This feature is sometimes used to mix different markup languages, e.g. to wrap an AngularJS\n * template within a Python Jinja template (or any other template language). Mixing templating\n * languages is **very dangerous**. The embedding template language will not safely escape AngularJS\n * expressions, so any user-controlled values in the template will cause Cross Site Scripting (XSS)\n * security bugs!\n * </div>\n *\n * @example\n<example name=\"custom-interpolation-markup\" module=\"customInterpolationApp\">\n<file name=\"index.html\">\n<script>\n  var customInterpolationApp = angular.module('customInterpolationApp', []);\n\n  customInterpolationApp.config(function($interpolateProvider) {\n    $interpolateProvider.startSymbol('//');\n    $interpolateProvider.endSymbol('//');\n  });\n\n\n  customInterpolationApp.controller('DemoController', function() {\n      this.label = \"This binding is brought you by // interpolation symbols.\";\n  });\n</script>\n<div ng-controller=\"DemoController as demo\">\n    //demo.label//\n</div>\n</file>\n<file name=\"protractor.js\" type=\"protractor\">\n  it('should interpolate binding with custom symbols', function() {\n    expect(element(by.binding('demo.label')).getText()).toBe('This binding is brought you by // interpolation symbols.');\n  });\n</file>\n</example>\n */\nfunction $InterpolateProvider() {\n  var startSymbol = '{{';\n  var endSymbol = '}}';\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#startSymbol\n   * @description\n   * Symbol to denote start of expression in the interpolated string. Defaults to `{{`.\n   *\n   * @param {string=} value new value to set the starting symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.startSymbol = function(value) {\n    if (value) {\n      startSymbol = value;\n      return this;\n    }\n    return startSymbol;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $interpolateProvider#endSymbol\n   * @description\n   * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n   *\n   * @param {string=} value new value to set the ending symbol to.\n   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.\n   */\n  this.endSymbol = function(value) {\n    if (value) {\n      endSymbol = value;\n      return this;\n    }\n    return endSymbol;\n  };\n\n\n  this.$get = ['$parse', '$exceptionHandler', '$sce', function($parse, $exceptionHandler, $sce) {\n    var startSymbolLength = startSymbol.length,\n        endSymbolLength = endSymbol.length,\n        escapedStartRegexp = new RegExp(startSymbol.replace(/./g, escape), 'g'),\n        escapedEndRegexp = new RegExp(endSymbol.replace(/./g, escape), 'g');\n\n    function escape(ch) {\n      return '\\\\\\\\\\\\' + ch;\n    }\n\n    function unescapeText(text) {\n      return text.replace(escapedStartRegexp, startSymbol).\n        replace(escapedEndRegexp, endSymbol);\n    }\n\n    // TODO: this is the same as the constantWatchDelegate in parse.js\n    function constantWatchDelegate(scope, listener, objectEquality, constantInterp) {\n      var unwatch = scope.$watch(function constantInterpolateWatch(scope) {\n        unwatch();\n        return constantInterp(scope);\n      }, listener, objectEquality);\n      return unwatch;\n    }\n\n    /**\n     * @ngdoc service\n     * @name $interpolate\n     * @kind function\n     *\n     * @requires $parse\n     * @requires $sce\n     *\n     * @description\n     *\n     * Compiles a string with markup into an interpolation function. This service is used by the\n     * HTML {@link ng.$compile $compile} service for data binding. See\n     * {@link ng.$interpolateProvider $interpolateProvider} for configuring the\n     * interpolation markup.\n     *\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var exp = $interpolate('Hello {{name | uppercase}}!');\n     *   expect(exp({name:'AngularJS'})).toEqual('Hello ANGULARJS!');\n     * ```\n     *\n     * `$interpolate` takes an optional fourth argument, `allOrNothing`. If `allOrNothing` is\n     * `true`, the interpolation function will return `undefined` unless all embedded expressions\n     * evaluate to a value other than `undefined`.\n     *\n     * ```js\n     *   var $interpolate = ...; // injected\n     *   var context = {greeting: 'Hello', name: undefined };\n     *\n     *   // default \"forgiving\" mode\n     *   var exp = $interpolate('{{greeting}} {{name}}!');\n     *   expect(exp(context)).toEqual('Hello !');\n     *\n     *   // \"allOrNothing\" mode\n     *   exp = $interpolate('{{greeting}} {{name}}!', false, null, true);\n     *   expect(exp(context)).toBeUndefined();\n     *   context.name = 'AngularJS';\n     *   expect(exp(context)).toEqual('Hello AngularJS!');\n     * ```\n     *\n     * `allOrNothing` is useful for interpolating URLs. `ngSrc` and `ngSrcset` use this behavior.\n     *\n     * #### Escaped Interpolation\n     * $interpolate provides a mechanism for escaping interpolation markers. Start and end markers\n     * can be escaped by preceding each of their characters with a REVERSE SOLIDUS U+005C (backslash).\n     * It will be rendered as a regular start/end marker, and will not be interpreted as an expression\n     * or binding.\n     *\n     * This enables web-servers to prevent script injection attacks and defacing attacks, to some\n     * degree, while also enabling code examples to work without relying on the\n     * {@link ng.directive:ngNonBindable ngNonBindable} directive.\n     *\n     * **For security purposes, it is strongly encouraged that web servers escape user-supplied data,\n     * replacing angle brackets (&lt;, &gt;) with &amp;lt; and &amp;gt; respectively, and replacing all\n     * interpolation start/end markers with their escaped counterparts.**\n     *\n     * Escaped interpolation markers are only replaced with the actual interpolation markers in rendered\n     * output when the $interpolate service processes the text. So, for HTML elements interpolated\n     * by {@link ng.$compile $compile}, or otherwise interpolated with the `mustHaveExpression` parameter\n     * set to `true`, the interpolated text must contain an unescaped interpolation expression. As such,\n     * this is typically useful only when user-data is used in rendering a template from the server, or\n     * when otherwise untrusted data is used by a directive.\n     *\n     * <example name=\"interpolation\">\n     *  <file name=\"index.html\">\n     *    <div ng-init=\"username='A user'\">\n     *      <p ng-init=\"apptitle='Escaping demo'\">{{apptitle}}: \\{\\{ username = \"defaced value\"; \\}\\}\n     *        </p>\n     *      <p><strong>{{username}}</strong> attempts to inject code which will deface the\n     *        application, but fails to accomplish their task, because the server has correctly\n     *        escaped the interpolation start/end markers with REVERSE SOLIDUS U+005C (backslash)\n     *        characters.</p>\n     *      <p>Instead, the result of the attempted script injection is visible, and can be removed\n     *        from the database by an administrator.</p>\n     *    </div>\n     *  </file>\n     * </example>\n     *\n     * @knownIssue\n     * It is currently not possible for an interpolated expression to contain the interpolation end\n     * symbol. For example, `{{ '}}' }}` will be incorrectly interpreted as `{{ ' }}` + `' }}`, i.e.\n     * an interpolated expression consisting of a single-quote (`'`) and the `' }}` string.\n     *\n     * @knownIssue\n     * All directives and components must use the standard `{{` `}}` interpolation symbols\n     * in their templates. If you change the application interpolation symbols the {@link $compile}\n     * service will attempt to denormalize the standard symbols to the custom symbols.\n     * The denormalization process is not clever enough to know not to replace instances of the standard\n     * symbols where they would not normally be treated as interpolation symbols. For example in the following\n     * code snippet the closing braces of the literal object will get incorrectly denormalized:\n     *\n     * ```\n     * <div data-context='{\"context\":{\"id\":3,\"type\":\"page\"}}\">\n     * ```\n     *\n     * The workaround is to ensure that such instances are separated by whitespace:\n     * ```\n     * <div data-context='{\"context\":{\"id\":3,\"type\":\"page\"} }\">\n     * ```\n     *\n     * See https://github.com/angular/angular.js/pull/14610#issuecomment-219401099 for more information.\n     *\n     * @param {string} text The text with markup to interpolate.\n     * @param {boolean=} mustHaveExpression if set to true then the interpolation string must have\n     *    embedded expression in order to return an interpolation function. Strings with no\n     *    embedded expression will return null for the interpolation function.\n     * @param {string=} trustedContext when provided, the returned function passes the interpolated\n     *    result through {@link ng.$sce#getTrusted $sce.getTrusted(interpolatedResult,\n     *    trustedContext)} before returning it.  Refer to the {@link ng.$sce $sce} service that\n     *    provides Strict Contextual Escaping for details.\n     * @param {boolean=} allOrNothing if `true`, then the returned function returns undefined\n     *    unless all embedded expressions evaluate to a value other than `undefined`.\n     * @returns {function(context)} an interpolation function which is used to compute the\n     *    interpolated string. The function has these parameters:\n     *\n     * - `context`: evaluation context for all expressions embedded in the interpolated text\n     */\n    function $interpolate(text, mustHaveExpression, trustedContext, allOrNothing) {\n      var contextAllowsConcatenation = trustedContext === $sce.URL || trustedContext === $sce.MEDIA_URL;\n\n      // Provide a quick exit and simplified result function for text with no interpolation\n      if (!text.length || text.indexOf(startSymbol) === -1) {\n        if (mustHaveExpression) return;\n\n        var unescapedText = unescapeText(text);\n        if (contextAllowsConcatenation) {\n          unescapedText = $sce.getTrusted(trustedContext, unescapedText);\n        }\n        var constantInterp = valueFn(unescapedText);\n        constantInterp.exp = text;\n        constantInterp.expressions = [];\n        constantInterp.$$watchDelegate = constantWatchDelegate;\n\n        return constantInterp;\n      }\n\n      allOrNothing = !!allOrNothing;\n      var startIndex,\n          endIndex,\n          index = 0,\n          expressions = [],\n          parseFns,\n          textLength = text.length,\n          exp,\n          concat = [],\n          expressionPositions = [],\n          singleExpression;\n\n\n      while (index < textLength) {\n        if (((startIndex = text.indexOf(startSymbol, index)) !== -1) &&\n             ((endIndex = text.indexOf(endSymbol, startIndex + startSymbolLength)) !== -1)) {\n          if (index !== startIndex) {\n            concat.push(unescapeText(text.substring(index, startIndex)));\n          }\n          exp = text.substring(startIndex + startSymbolLength, endIndex);\n          expressions.push(exp);\n          index = endIndex + endSymbolLength;\n          expressionPositions.push(concat.length);\n          concat.push(''); // Placeholder that will get replaced with the evaluated expression.\n        } else {\n          // we did not find an interpolation, so we have to add the remainder to the separators array\n          if (index !== textLength) {\n            concat.push(unescapeText(text.substring(index)));\n          }\n          break;\n        }\n      }\n\n      singleExpression = concat.length === 1 && expressionPositions.length === 1;\n      // Intercept expression if we need to stringify concatenated inputs, which may be SCE trusted\n      // objects rather than simple strings\n      // (we don't modify the expression if the input consists of only a single trusted input)\n      var interceptor = contextAllowsConcatenation && singleExpression ? undefined : parseStringifyInterceptor;\n      parseFns = expressions.map(function(exp) { return $parse(exp, interceptor); });\n\n      // Concatenating expressions makes it hard to reason about whether some combination of\n      // concatenated values are unsafe to use and could easily lead to XSS.  By requiring that a\n      // single expression be used for some $sce-managed secure contexts (RESOURCE_URLs mostly),\n      // we ensure that the value that's used is assigned or constructed by some JS code somewhere\n      // that is more testable or make it obvious that you bound the value to some user controlled\n      // value.  This helps reduce the load when auditing for XSS issues.\n\n      // Note that URL and MEDIA_URL $sce contexts do not need this, since `$sce` can sanitize the values\n      // passed to it. In that case, `$sce.getTrusted` will be called on either the single expression\n      // or on the overall concatenated string (losing trusted types used in the mix, by design).\n      // Both these methods will sanitize plain strings. Also, HTML could be included, but since it's\n      // only used in srcdoc attributes, this would not be very useful.\n\n      if (!mustHaveExpression || expressions.length) {\n        var compute = function(values) {\n          for (var i = 0, ii = expressions.length; i < ii; i++) {\n            if (allOrNothing && isUndefined(values[i])) return;\n            concat[expressionPositions[i]] = values[i];\n          }\n\n          if (contextAllowsConcatenation) {\n            // If `singleExpression` then `concat[0]` might be a \"trusted\" value or `null`, rather than a string\n            return $sce.getTrusted(trustedContext, singleExpression ? concat[0] : concat.join(''));\n          } else if (trustedContext && concat.length > 1) {\n            // This context does not allow more than one part, e.g. expr + string or exp + exp.\n            $interpolateMinErr.throwNoconcat(text);\n          }\n          // In an unprivileged context or only one part: just concatenate and return.\n          return concat.join('');\n        };\n\n        return extend(function interpolationFn(context) {\n            var i = 0;\n            var ii = expressions.length;\n            var values = new Array(ii);\n\n            try {\n              for (; i < ii; i++) {\n                values[i] = parseFns[i](context);\n              }\n\n              return compute(values);\n            } catch (err) {\n              $exceptionHandler($interpolateMinErr.interr(text, err));\n            }\n\n          }, {\n          // all of these properties are undocumented for now\n          exp: text, //just for compatibility with regular watchers created via $watch\n          expressions: expressions,\n          $$watchDelegate: function(scope, listener) {\n            var lastValue;\n            return scope.$watchGroup(parseFns, /** @this */ function interpolateFnWatcher(values, oldValues) {\n              var currValue = compute(values);\n              listener.call(this, currValue, values !== oldValues ? lastValue : currValue, scope);\n              lastValue = currValue;\n            });\n          }\n        });\n      }\n\n      function parseStringifyInterceptor(value) {\n        try {\n          // In concatenable contexts, getTrusted comes at the end, to avoid sanitizing individual\n          // parts of a full URL. We don't care about losing the trustedness here.\n          // In non-concatenable contexts, where there is only one expression, this interceptor is\n          // not applied to the expression.\n          value = (trustedContext && !contextAllowsConcatenation) ?\n                    $sce.getTrusted(trustedContext, value) :\n                    $sce.valueOf(value);\n          return allOrNothing && !isDefined(value) ? value : stringify(value);\n        } catch (err) {\n          $exceptionHandler($interpolateMinErr.interr(text, err));\n        }\n      }\n    }\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#startSymbol\n     * @description\n     * Symbol to denote the start of expression in the interpolated string. Defaults to `{{`.\n     *\n     * Use {@link ng.$interpolateProvider#startSymbol `$interpolateProvider.startSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} start symbol.\n     */\n    $interpolate.startSymbol = function() {\n      return startSymbol;\n    };\n\n\n    /**\n     * @ngdoc method\n     * @name $interpolate#endSymbol\n     * @description\n     * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.\n     *\n     * Use {@link ng.$interpolateProvider#endSymbol `$interpolateProvider.endSymbol`} to change\n     * the symbol.\n     *\n     * @returns {string} end symbol.\n     */\n    $interpolate.endSymbol = function() {\n      return endSymbol;\n    };\n\n    return $interpolate;\n  }];\n}\n\nvar $intervalMinErr = minErr('$interval');\n\n/** @this */\nfunction $IntervalProvider() {\n  this.$get = ['$$intervalFactory', '$window',\n       function($$intervalFactory,   $window) {\n    var intervals = {};\n    var setIntervalFn = function(tick, delay, deferred) {\n      var id = $window.setInterval(tick, delay);\n      intervals[id] = deferred;\n      return id;\n    };\n    var clearIntervalFn = function(id) {\n      $window.clearInterval(id);\n      delete intervals[id];\n    };\n\n    /**\n     * @ngdoc service\n     * @name $interval\n     *\n     * @description\n     * AngularJS's wrapper for `window.setInterval`. The `fn` function is executed every `delay`\n     * milliseconds.\n     *\n     * The return value of registering an interval function is a promise. This promise will be\n     * notified upon each tick of the interval, and will be resolved after `count` iterations, or\n     * run indefinitely if `count` is not defined. The value of the notification will be the\n     * number of iterations that have run.\n     * To cancel an interval, call `$interval.cancel(promise)`.\n     *\n     * In tests you can use {@link ngMock.$interval#flush `$interval.flush(millis)`} to\n     * move forward by `millis` milliseconds and trigger any functions scheduled to run in that\n     * time.\n     *\n     * <div class=\"alert alert-warning\">\n     * **Note**: Intervals created by this service must be explicitly destroyed when you are finished\n     * with them.  In particular they are not automatically destroyed when a controller's scope or a\n     * directive's element are destroyed.\n     * You should take this into consideration and make sure to always cancel the interval at the\n     * appropriate moment.  See the example below for more details on how and when to do this.\n     * </div>\n     *\n     * @param {function()} fn A function that should be called repeatedly. If no additional arguments\n     *   are passed (see below), the function is called with the current iteration count.\n     * @param {number} delay Number of milliseconds between each function call.\n     * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat\n     *   indefinitely.\n     * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n     *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n     * @param {...*=} Pass additional parameters to the executed function.\n     * @returns {promise} A promise which will be notified on each iteration. It will resolve once all iterations of the interval complete.\n     *\n     * @example\n     * <example module=\"intervalExample\" name=\"interval-service\">\n     * <file name=\"index.html\">\n     *   <script>\n     *     angular.module('intervalExample', [])\n     *       .controller('ExampleController', ['$scope', '$interval',\n     *         function($scope, $interval) {\n     *           $scope.format = 'M/d/yy h:mm:ss a';\n     *           $scope.blood_1 = 100;\n     *           $scope.blood_2 = 120;\n     *\n     *           var stop;\n     *           $scope.fight = function() {\n     *             // Don't start a new fight if we are already fighting\n     *             if ( angular.isDefined(stop) ) return;\n     *\n     *             stop = $interval(function() {\n     *               if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {\n     *                 $scope.blood_1 = $scope.blood_1 - 3;\n     *                 $scope.blood_2 = $scope.blood_2 - 4;\n     *               } else {\n     *                 $scope.stopFight();\n     *               }\n     *             }, 100);\n     *           };\n     *\n     *           $scope.stopFight = function() {\n     *             if (angular.isDefined(stop)) {\n     *               $interval.cancel(stop);\n     *               stop = undefined;\n     *             }\n     *           };\n     *\n     *           $scope.resetFight = function() {\n     *             $scope.blood_1 = 100;\n     *             $scope.blood_2 = 120;\n     *           };\n     *\n     *           $scope.$on('$destroy', function() {\n     *             // Make sure that the interval is destroyed too\n     *             $scope.stopFight();\n     *           });\n     *         }])\n     *       // Register the 'myCurrentTime' directive factory method.\n     *       // We inject $interval and dateFilter service since the factory method is DI.\n     *       .directive('myCurrentTime', ['$interval', 'dateFilter',\n     *         function($interval, dateFilter) {\n     *           // return the directive link function. (compile function not needed)\n     *           return function(scope, element, attrs) {\n     *             var format,  // date format\n     *                 stopTime; // so that we can cancel the time updates\n     *\n     *             // used to update the UI\n     *             function updateTime() {\n     *               element.text(dateFilter(new Date(), format));\n     *             }\n     *\n     *             // watch the expression, and update the UI on change.\n     *             scope.$watch(attrs.myCurrentTime, function(value) {\n     *               format = value;\n     *               updateTime();\n     *             });\n     *\n     *             stopTime = $interval(updateTime, 1000);\n     *\n     *             // listen on DOM destroy (removal) event, and cancel the next UI update\n     *             // to prevent updating time after the DOM element was removed.\n     *             element.on('$destroy', function() {\n     *               $interval.cancel(stopTime);\n     *             });\n     *           }\n     *         }]);\n     *   </script>\n     *\n     *   <div>\n     *     <div ng-controller=\"ExampleController\">\n     *       <label>Date format: <input ng-model=\"format\"></label> <hr/>\n     *       Current time is: <span my-current-time=\"format\"></span>\n     *       <hr/>\n     *       Blood 1 : <font color='red'>{{blood_1}}</font>\n     *       Blood 2 : <font color='red'>{{blood_2}}</font>\n     *       <button type=\"button\" data-ng-click=\"fight()\">Fight</button>\n     *       <button type=\"button\" data-ng-click=\"stopFight()\">StopFight</button>\n     *       <button type=\"button\" data-ng-click=\"resetFight()\">resetFight</button>\n     *     </div>\n     *   </div>\n     *\n     * </file>\n     * </example>\n     */\n    var interval = $$intervalFactory(setIntervalFn, clearIntervalFn);\n\n    /**\n     * @ngdoc method\n     * @name $interval#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`.\n     *\n     * @param {Promise=} promise returned by the `$interval` function.\n     * @returns {boolean} Returns `true` if the task was successfully canceled.\n     */\n    interval.cancel = function(promise) {\n      if (!promise) return false;\n\n      if (!promise.hasOwnProperty('$$intervalId')) {\n        throw $intervalMinErr('badprom',\n            '`$interval.cancel()` called with a promise that was not generated by `$interval()`.');\n      }\n\n      if (!intervals.hasOwnProperty(promise.$$intervalId)) return false;\n\n      var id = promise.$$intervalId;\n      var deferred = intervals[id];\n\n      // Interval cancels should not report an unhandled promise.\n      markQExceptionHandled(deferred.promise);\n      deferred.reject('canceled');\n      clearIntervalFn(id);\n\n      return true;\n    };\n\n    return interval;\n  }];\n}\n\n/** @this */\nfunction $$IntervalFactoryProvider() {\n  this.$get = ['$browser', '$q', '$$q', '$rootScope',\n       function($browser,   $q,   $$q,   $rootScope) {\n    return function intervalFactory(setIntervalFn, clearIntervalFn) {\n      return function intervalFn(fn, delay, count, invokeApply) {\n        var hasParams = arguments.length > 4,\n            args = hasParams ? sliceArgs(arguments, 4) : [],\n            iteration = 0,\n            skipApply = isDefined(invokeApply) && !invokeApply,\n            deferred = (skipApply ? $$q : $q).defer(),\n            promise = deferred.promise;\n\n        count = isDefined(count) ? count : 0;\n\n        function callback() {\n          if (!hasParams) {\n            fn(iteration);\n          } else {\n            fn.apply(null, args);\n          }\n        }\n\n        function tick() {\n          if (skipApply) {\n            $browser.defer(callback);\n          } else {\n            $rootScope.$evalAsync(callback);\n          }\n          deferred.notify(iteration++);\n\n          if (count > 0 && iteration >= count) {\n            deferred.resolve(iteration);\n            clearIntervalFn(promise.$$intervalId);\n          }\n\n          if (!skipApply) $rootScope.$apply();\n        }\n\n        promise.$$intervalId = setIntervalFn(tick, delay, deferred, skipApply);\n\n        return promise;\n      };\n    };\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $jsonpCallbacks\n * @requires $window\n * @description\n * This service handles the lifecycle of callbacks to handle JSONP requests.\n * Override this service if you wish to customise where the callbacks are stored and\n * how they vary compared to the requested url.\n */\nvar $jsonpCallbacksProvider = /** @this */ function() {\n  this.$get = function() {\n    var callbacks = angular.callbacks;\n    var callbackMap = {};\n\n    function createCallback(callbackId) {\n      var callback = function(data) {\n        callback.data = data;\n        callback.called = true;\n      };\n      callback.id = callbackId;\n      return callback;\n    }\n\n    return {\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#createCallback\n       * @param {string} url the url of the JSONP request\n       * @returns {string} the callback path to send to the server as part of the JSONP request\n       * @description\n       * {@link $httpBackend} calls this method to create a callback and get hold of the path to the callback\n       * to pass to the server, which will be used to call the callback with its payload in the JSONP response.\n       */\n      createCallback: function(url) {\n        var callbackId = '_' + (callbacks.$$counter++).toString(36);\n        var callbackPath = 'angular.callbacks.' + callbackId;\n        var callback = createCallback(callbackId);\n        callbackMap[callbackPath] = callbacks[callbackId] = callback;\n        return callbackPath;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#wasCalled\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @returns {boolean} whether the callback has been called, as a result of the JSONP response\n       * @description\n       * {@link $httpBackend} calls this method to find out whether the JSONP response actually called the\n       * callback that was passed in the request.\n       */\n      wasCalled: function(callbackPath) {\n        return callbackMap[callbackPath].called;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#getResponse\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @returns {*} the data received from the response via the registered callback\n       * @description\n       * {@link $httpBackend} calls this method to get hold of the data that was provided to the callback\n       * in the JSONP response.\n       */\n      getResponse: function(callbackPath) {\n        return callbackMap[callbackPath].data;\n      },\n      /**\n       * @ngdoc method\n       * @name $jsonpCallbacks#removeCallback\n       * @param {string} callbackPath the path to the callback that was sent in the JSONP request\n       * @description\n       * {@link $httpBackend} calls this method to remove the callback after the JSONP request has\n       * completed or timed-out.\n       */\n      removeCallback: function(callbackPath) {\n        var callback = callbackMap[callbackPath];\n        delete callbacks[callback.id];\n        delete callbackMap[callbackPath];\n      }\n    };\n  };\n};\n\n/**\n * @ngdoc service\n * @name $locale\n *\n * @description\n * $locale service provides localization rules for various AngularJS components. As of right now the\n * only public api is:\n *\n * * `id` – `{string}` – locale id formatted as `languageId-countryId` (e.g. `en-us`)\n */\n\n/* global stripHash: true */\n\nvar PATH_MATCH = /^([^?#]*)(\\?([^#]*))?(#(.*))?$/,\n    DEFAULT_PORTS = {'http': 80, 'https': 443, 'ftp': 21};\nvar $locationMinErr = minErr('$location');\n\n\n/**\n * Encode path using encodeUriSegment, ignoring forward slashes\n *\n * @param {string} path Path to encode\n * @returns {string}\n */\nfunction encodePath(path) {\n  var segments = path.split('/'),\n      i = segments.length;\n\n  while (i--) {\n    // decode forward slashes to prevent them from being double encoded\n    segments[i] = encodeUriSegment(segments[i].replace(/%2F/g, '/'));\n  }\n\n  return segments.join('/');\n}\n\nfunction decodePath(path, html5Mode) {\n  var segments = path.split('/'),\n      i = segments.length;\n\n  while (i--) {\n    segments[i] = decodeURIComponent(segments[i]);\n    if (html5Mode) {\n      // encode forward slashes to prevent them from being mistaken for path separators\n      segments[i] = segments[i].replace(/\\//g, '%2F');\n    }\n  }\n\n  return segments.join('/');\n}\n\nfunction normalizePath(pathValue, searchValue, hashValue) {\n  var search = toKeyValue(searchValue),\n    hash = hashValue ? '#' + encodeUriSegment(hashValue) : '',\n    path = encodePath(pathValue);\n\n  return path + (search ? '?' + search : '') + hash;\n}\n\nfunction parseAbsoluteUrl(absoluteUrl, locationObj) {\n  var parsedUrl = urlResolve(absoluteUrl);\n\n  locationObj.$$protocol = parsedUrl.protocol;\n  locationObj.$$host = parsedUrl.hostname;\n  locationObj.$$port = toInt(parsedUrl.port) || DEFAULT_PORTS[parsedUrl.protocol] || null;\n}\n\nvar DOUBLE_SLASH_REGEX = /^\\s*[\\\\/]{2,}/;\nfunction parseAppUrl(url, locationObj, html5Mode) {\n\n  if (DOUBLE_SLASH_REGEX.test(url)) {\n    throw $locationMinErr('badpath', 'Invalid url \"{0}\".', url);\n  }\n\n  var prefixed = (url.charAt(0) !== '/');\n  if (prefixed) {\n    url = '/' + url;\n  }\n  var match = urlResolve(url);\n  var path = prefixed && match.pathname.charAt(0) === '/' ? match.pathname.substring(1) : match.pathname;\n  locationObj.$$path = decodePath(path, html5Mode);\n  locationObj.$$search = parseKeyValue(match.search);\n  locationObj.$$hash = decodeURIComponent(match.hash);\n\n  // make sure path starts with '/';\n  if (locationObj.$$path && locationObj.$$path.charAt(0) !== '/') {\n    locationObj.$$path = '/' + locationObj.$$path;\n  }\n}\n\nfunction startsWith(str, search) {\n  return str.slice(0, search.length) === search;\n}\n\n/**\n *\n * @param {string} base\n * @param {string} url\n * @returns {string} returns text from `url` after `base` or `undefined` if it does not begin with\n *                   the expected string.\n */\nfunction stripBaseUrl(base, url) {\n  if (startsWith(url, base)) {\n    return url.substr(base.length);\n  }\n}\n\nfunction stripHash(url) {\n  var index = url.indexOf('#');\n  return index === -1 ? url : url.substr(0, index);\n}\n\nfunction stripFile(url) {\n  return url.substr(0, stripHash(url).lastIndexOf('/') + 1);\n}\n\n/* return the server only (scheme://host:port) */\nfunction serverBase(url) {\n  return url.substring(0, url.indexOf('/', url.indexOf('//') + 2));\n}\n\n\n/**\n * LocationHtml5Url represents a URL\n * This object is exposed as $location service when HTML5 mode is enabled and supported\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} basePrefix URL path prefix\n */\nfunction LocationHtml5Url(appBase, appBaseNoFile, basePrefix) {\n  this.$$html5 = true;\n  basePrefix = basePrefix || '';\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given HTML5 (regular) URL string into properties\n   * @param {string} url HTML5 URL\n   * @private\n   */\n  this.$$parse = function(url) {\n    var pathUrl = stripBaseUrl(appBaseNoFile, url);\n    if (!isString(pathUrl)) {\n      throw $locationMinErr('ipthprfx', 'Invalid url \"{0}\", missing path prefix \"{1}\".', url,\n          appBaseNoFile);\n    }\n\n    parseAppUrl(pathUrl, this, true);\n\n    if (!this.$$path) {\n      this.$$path = '/';\n    }\n\n    this.$$compose();\n  };\n\n  this.$$normalizeUrl = function(url) {\n    return appBaseNoFile + url.substr(1); // first char is always '/'\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n    var appUrl, prevAppUrl;\n    var rewrittenUrl;\n\n\n    if (isDefined(appUrl = stripBaseUrl(appBase, url))) {\n      prevAppUrl = appUrl;\n      if (basePrefix && isDefined(appUrl = stripBaseUrl(basePrefix, appUrl))) {\n        rewrittenUrl = appBaseNoFile + (stripBaseUrl('/', appUrl) || appUrl);\n      } else {\n        rewrittenUrl = appBase + prevAppUrl;\n      }\n    } else if (isDefined(appUrl = stripBaseUrl(appBaseNoFile, url))) {\n      rewrittenUrl = appBaseNoFile + appUrl;\n    } else if (appBaseNoFile === url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents URL\n * This object is exposed as $location service when developer doesn't opt into html5 mode.\n * It also serves as the base class for html5 mode fallback on legacy browsers.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangUrl(appBase, appBaseNoFile, hashPrefix) {\n\n  parseAbsoluteUrl(appBase, this);\n\n\n  /**\n   * Parse given hashbang URL into properties\n   * @param {string} url Hashbang URL\n   * @private\n   */\n  this.$$parse = function(url) {\n    var withoutBaseUrl = stripBaseUrl(appBase, url) || stripBaseUrl(appBaseNoFile, url);\n    var withoutHashUrl;\n\n    if (!isUndefined(withoutBaseUrl) && withoutBaseUrl.charAt(0) === '#') {\n\n      // The rest of the URL starts with a hash so we have\n      // got either a hashbang path or a plain hash fragment\n      withoutHashUrl = stripBaseUrl(hashPrefix, withoutBaseUrl);\n      if (isUndefined(withoutHashUrl)) {\n        // There was no hashbang prefix so we just have a hash fragment\n        withoutHashUrl = withoutBaseUrl;\n      }\n\n    } else {\n      // There was no hashbang path nor hash fragment:\n      // If we are in HTML5 mode we use what is left as the path;\n      // Otherwise we ignore what is left\n      if (this.$$html5) {\n        withoutHashUrl = withoutBaseUrl;\n      } else {\n        withoutHashUrl = '';\n        if (isUndefined(withoutBaseUrl)) {\n          appBase = url;\n          /** @type {?} */ (this).replace();\n        }\n      }\n    }\n\n    parseAppUrl(withoutHashUrl, this, false);\n\n    this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase);\n\n    this.$$compose();\n\n    /*\n     * In Windows, on an anchor node on documents loaded from\n     * the filesystem, the browser will return a pathname\n     * prefixed with the drive name ('/C:/path') when a\n     * pathname without a drive is set:\n     *  * a.setAttribute('href', '/foo')\n     *   * a.pathname === '/C:/foo' //true\n     *\n     * Inside of AngularJS, we're always using pathnames that\n     * do not include drive names for routing.\n     */\n    function removeWindowsDriveName(path, url, base) {\n      /*\n      Matches paths for file protocol on windows,\n      such as /C:/foo/bar, and captures only /foo/bar.\n      */\n      var windowsFilePathExp = /^\\/[A-Z]:(\\/.*)/;\n\n      var firstPathSegmentMatch;\n\n      //Get the relative path from the input URL.\n      if (startsWith(url, base)) {\n        url = url.replace(base, '');\n      }\n\n      // The input URL intentionally contains a first path segment that ends with a colon.\n      if (windowsFilePathExp.exec(url)) {\n        return path;\n      }\n\n      firstPathSegmentMatch = windowsFilePathExp.exec(path);\n      return firstPathSegmentMatch ? firstPathSegmentMatch[1] : path;\n    }\n  };\n\n  this.$$normalizeUrl = function(url) {\n    return appBase + (url ? hashPrefix + url : '');\n  };\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (stripHash(appBase) === stripHash(url)) {\n      this.$$parse(url);\n      return true;\n    }\n    return false;\n  };\n}\n\n\n/**\n * LocationHashbangUrl represents URL\n * This object is exposed as $location service when html5 history api is enabled but the browser\n * does not support it.\n *\n * @constructor\n * @param {string} appBase application base URL\n * @param {string} appBaseNoFile application base URL stripped of any filename\n * @param {string} hashPrefix hashbang prefix\n */\nfunction LocationHashbangInHtml5Url(appBase, appBaseNoFile, hashPrefix) {\n  this.$$html5 = true;\n  LocationHashbangUrl.apply(this, arguments);\n\n  this.$$parseLinkUrl = function(url, relHref) {\n    if (relHref && relHref[0] === '#') {\n      // special case for links to hash fragments:\n      // keep the old url and only replace the hash fragment\n      this.hash(relHref.slice(1));\n      return true;\n    }\n\n    var rewrittenUrl;\n    var appUrl;\n\n    if (appBase === stripHash(url)) {\n      rewrittenUrl = url;\n    } else if ((appUrl = stripBaseUrl(appBaseNoFile, url))) {\n      rewrittenUrl = appBase + hashPrefix + appUrl;\n    } else if (appBaseNoFile === url + '/') {\n      rewrittenUrl = appBaseNoFile;\n    }\n    if (rewrittenUrl) {\n      this.$$parse(rewrittenUrl);\n    }\n    return !!rewrittenUrl;\n  };\n\n  this.$$normalizeUrl = function(url) {\n    // include hashPrefix in $$absUrl when $$url is empty so IE9 does not reload page because of removal of '#'\n    return appBase + hashPrefix + url;\n  };\n}\n\n\nvar locationPrototype = {\n\n  /**\n   * Ensure absolute URL is initialized.\n   * @private\n   */\n  $$absUrl:'',\n\n  /**\n   * Are we in html5 mode?\n   * @private\n   */\n  $$html5: false,\n\n  /**\n   * Has any change been replacing?\n   * @private\n   */\n  $$replace: false,\n\n  /**\n   * Compose url and update `url` and `absUrl` property\n   * @private\n   */\n  $$compose: function() {\n    this.$$url = normalizePath(this.$$path, this.$$search, this.$$hash);\n    this.$$absUrl = this.$$normalizeUrl(this.$$url);\n    this.$$urlUpdatedByLocation = true;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#absUrl\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return full URL representation with all segments encoded according to rules specified in\n   * [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt).\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var absUrl = $location.absUrl();\n   * // => \"http://example.com/#/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @return {string} full URL\n   */\n  absUrl: locationGetter('$$absUrl'),\n\n  /**\n   * @ngdoc method\n   * @name $location#url\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return URL (e.g. `/path?a=b#hash`) when called without any parameter.\n   *\n   * Change path, search and hash, when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var url = $location.url();\n   * // => \"/some/path?foo=bar&baz=xoxo\"\n   * ```\n   *\n   * @param {string=} url New URL without base prefix (e.g. `/path?a=b#hash`)\n   * @return {string} url\n   */\n  url: function(url) {\n    if (isUndefined(url)) {\n      return this.$$url;\n    }\n\n    var match = PATH_MATCH.exec(url);\n    if (match[1] || url === '') this.path(decodeURIComponent(match[1]));\n    if (match[2] || match[1] || url === '') this.search(match[3] || '');\n    this.hash(match[5] || '');\n\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#protocol\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return protocol of current URL.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var protocol = $location.protocol();\n   * // => \"http\"\n   * ```\n   *\n   * @return {string} protocol of current URL\n   */\n  protocol: locationGetter('$$protocol'),\n\n  /**\n   * @ngdoc method\n   * @name $location#host\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return host of current URL.\n   *\n   * Note: compared to the non-AngularJS version `location.host` which returns `hostname:port`, this returns the `hostname` portion only.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var host = $location.host();\n   * // => \"example.com\"\n   *\n   * // given URL http://user:password@example.com:8080/#/some/path?foo=bar&baz=xoxo\n   * host = $location.host();\n   * // => \"example.com\"\n   * host = location.host;\n   * // => \"example.com:8080\"\n   * ```\n   *\n   * @return {string} host of current URL.\n   */\n  host: locationGetter('$$host'),\n\n  /**\n   * @ngdoc method\n   * @name $location#port\n   *\n   * @description\n   * This method is getter only.\n   *\n   * Return port of current URL.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var port = $location.port();\n   * // => 80\n   * ```\n   *\n   * @return {Number} port\n   */\n  port: locationGetter('$$port'),\n\n  /**\n   * @ngdoc method\n   * @name $location#path\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return path of current URL when called without any parameter.\n   *\n   * Change path when called with parameter and return `$location`.\n   *\n   * Note: Path should always begin with forward slash (/), this method will add the forward slash\n   * if it is missing.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var path = $location.path();\n   * // => \"/some/path\"\n   * ```\n   *\n   * @param {(string|number)=} path New path\n   * @return {(string|object)} path if called with no parameters, or `$location` if called with a parameter\n   */\n  path: locationGetterSetter('$$path', function(path) {\n    path = path !== null ? path.toString() : '';\n    return path.charAt(0) === '/' ? path : '/' + path;\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#search\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return search part (as object) of current URL when called without any parameter.\n   *\n   * Change search part when called with parameter and return `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo\n   * var searchObject = $location.search();\n   * // => {foo: 'bar', baz: 'xoxo'}\n   *\n   * // set foo to 'yipee'\n   * $location.search('foo', 'yipee');\n   * // $location.search() => {foo: 'yipee', baz: 'xoxo'}\n   * ```\n   *\n   * @param {string|Object.<string>|Object.<Array.<string>>} search New search params - string or\n   * hash object.\n   *\n   * When called with a single argument the method acts as a setter, setting the `search` component\n   * of `$location` to the specified value.\n   *\n   * If the argument is a hash object containing an array of values, these values will be encoded\n   * as duplicate search parameters in the URL.\n   *\n   * @param {(string|Number|Array<string>|boolean)=} paramValue If `search` is a string or number, then `paramValue`\n   * will override only a single search property.\n   *\n   * If `paramValue` is an array, it will override the property of the `search` component of\n   * `$location` specified via the first argument.\n   *\n   * If `paramValue` is `null`, the property specified via the first argument will be deleted.\n   *\n   * If `paramValue` is `true`, the property specified via the first argument will be added with no\n   * value nor trailing equal sign.\n   *\n   * @return {Object} If called with no arguments returns the parsed `search` object. If called with\n   * one or more arguments returns `$location` object itself.\n   */\n  search: function(search, paramValue) {\n    switch (arguments.length) {\n      case 0:\n        return this.$$search;\n      case 1:\n        if (isString(search) || isNumber(search)) {\n          search = search.toString();\n          this.$$search = parseKeyValue(search);\n        } else if (isObject(search)) {\n          search = copy(search, {});\n          // remove object undefined or null properties\n          forEach(search, function(value, key) {\n            if (value == null) delete search[key];\n          });\n\n          this.$$search = search;\n        } else {\n          throw $locationMinErr('isrcharg',\n              'The first argument of the `$location#search()` call must be a string or an object.');\n        }\n        break;\n      default:\n        if (isUndefined(paramValue) || paramValue === null) {\n          delete this.$$search[search];\n        } else {\n          this.$$search[search] = paramValue;\n        }\n    }\n\n    this.$$compose();\n    return this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $location#hash\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Returns the hash fragment when called without any parameters.\n   *\n   * Changes the hash fragment when called with a parameter and returns `$location`.\n   *\n   *\n   * ```js\n   * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo#hashValue\n   * var hash = $location.hash();\n   * // => \"hashValue\"\n   * ```\n   *\n   * @param {(string|number)=} hash New hash fragment\n   * @return {string} hash\n   */\n  hash: locationGetterSetter('$$hash', function(hash) {\n    return hash !== null ? hash.toString() : '';\n  }),\n\n  /**\n   * @ngdoc method\n   * @name $location#replace\n   *\n   * @description\n   * If called, all changes to $location during the current `$digest` will replace the current history\n   * record, instead of adding a new one.\n   */\n  replace: function() {\n    this.$$replace = true;\n    return this;\n  }\n};\n\nforEach([LocationHashbangInHtml5Url, LocationHashbangUrl, LocationHtml5Url], function(Location) {\n  Location.prototype = Object.create(locationPrototype);\n\n  /**\n   * @ngdoc method\n   * @name $location#state\n   *\n   * @description\n   * This method is getter / setter.\n   *\n   * Return the history state object when called without any parameter.\n   *\n   * Change the history state object when called with one parameter and return `$location`.\n   * The state object is later passed to `pushState` or `replaceState`.\n   *\n   * NOTE: This method is supported only in HTML5 mode and only in browsers supporting\n   * the HTML5 History API (i.e. methods `pushState` and `replaceState`). If you need to support\n   * older browsers (like IE9 or Android < 4.0), don't use this method.\n   *\n   * @param {object=} state State object for pushState or replaceState\n   * @return {object} state\n   */\n  Location.prototype.state = function(state) {\n    if (!arguments.length) {\n      return this.$$state;\n    }\n\n    if (Location !== LocationHtml5Url || !this.$$html5) {\n      throw $locationMinErr('nostate', 'History API state support is available only ' +\n        'in HTML5 mode and only in browsers supporting HTML5 History API');\n    }\n    // The user might modify `stateObject` after invoking `$location.state(stateObject)`\n    // but we're changing the $$state reference to $browser.state() during the $digest\n    // so the modification window is narrow.\n    this.$$state = isUndefined(state) ? null : state;\n    this.$$urlUpdatedByLocation = true;\n\n    return this;\n  };\n});\n\n\nfunction locationGetter(property) {\n  return /** @this */ function() {\n    return this[property];\n  };\n}\n\n\nfunction locationGetterSetter(property, preprocess) {\n  return /** @this */ function(value) {\n    if (isUndefined(value)) {\n      return this[property];\n    }\n\n    this[property] = preprocess(value);\n    this.$$compose();\n\n    return this;\n  };\n}\n\n\n/**\n * @ngdoc service\n * @name $location\n *\n * @requires $rootElement\n *\n * @description\n * The $location service parses the URL in the browser address bar (based on the\n * [window.location](https://developer.mozilla.org/en/window.location)) and makes the URL\n * available to your application. Changes to the URL in the address bar are reflected into\n * $location service and changes to $location are reflected into the browser address bar.\n *\n * **The $location service:**\n *\n * - Exposes the current URL in the browser address bar, so you can\n *   - Watch and observe the URL.\n *   - Change the URL.\n * - Synchronizes the URL with the browser when the user\n *   - Changes the address bar.\n *   - Clicks the back or forward button (or clicks a History link).\n *   - Clicks on a link.\n * - Represents the URL object as a set of methods (protocol, host, port, path, search, hash).\n *\n * For more information see {@link guide/$location Developer Guide: Using $location}\n */\n\n/**\n * @ngdoc provider\n * @name $locationProvider\n * @this\n *\n * @description\n * Use the `$locationProvider` to configure how the application deep linking paths are stored.\n */\nfunction $LocationProvider() {\n  var hashPrefix = '!',\n      html5Mode = {\n        enabled: false,\n        requireBase: true,\n        rewriteLinks: true\n      };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#hashPrefix\n   * @description\n   * The default value for the prefix is `'!'`.\n   * @param {string=} prefix Prefix for hash part (containing path and search)\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.hashPrefix = function(prefix) {\n    if (isDefined(prefix)) {\n      hashPrefix = prefix;\n      return this;\n    } else {\n      return hashPrefix;\n    }\n  };\n\n  /**\n   * @ngdoc method\n   * @name $locationProvider#html5Mode\n   * @description\n   * @param {(boolean|Object)=} mode If boolean, sets `html5Mode.enabled` to value.\n   *   If object, sets `enabled`, `requireBase` and `rewriteLinks` to respective values. Supported\n   *   properties:\n   *   - **enabled** – `{boolean}` – (default: false) If true, will rely on `history.pushState` to\n   *     change urls where supported. Will fall back to hash-prefixed paths in browsers that do not\n   *     support `pushState`.\n   *   - **requireBase** - `{boolean}` - (default: `true`) When html5Mode is enabled, specifies\n   *     whether or not a <base> tag is required to be present. If `enabled` and `requireBase` are\n   *     true, and a base tag is not present, an error will be thrown when `$location` is injected.\n   *     See the {@link guide/$location $location guide for more information}\n   *   - **rewriteLinks** - `{boolean|string}` - (default: `true`) When html5Mode is enabled,\n   *     enables/disables URL rewriting for relative links. If set to a string, URL rewriting will\n   *     only happen on links with an attribute that matches the given string. For example, if set\n   *     to `'internal-link'`, then the URL will only be rewritten for `<a internal-link>` links.\n   *     Note that [attribute name normalization](guide/directive#normalization) does not apply\n   *     here, so `'internalLink'` will **not** match `'internal-link'`.\n   *\n   * @returns {Object} html5Mode object if used as getter or itself (chaining) if used as setter\n   */\n  this.html5Mode = function(mode) {\n    if (isBoolean(mode)) {\n      html5Mode.enabled = mode;\n      return this;\n    } else if (isObject(mode)) {\n\n      if (isBoolean(mode.enabled)) {\n        html5Mode.enabled = mode.enabled;\n      }\n\n      if (isBoolean(mode.requireBase)) {\n        html5Mode.requireBase = mode.requireBase;\n      }\n\n      if (isBoolean(mode.rewriteLinks) || isString(mode.rewriteLinks)) {\n        html5Mode.rewriteLinks = mode.rewriteLinks;\n      }\n\n      return this;\n    } else {\n      return html5Mode;\n    }\n  };\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeStart\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted before a URL will change.\n   *\n   * This change can be prevented by calling\n   * `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on} for more\n   * details about event object. Upon successful change\n   * {@link ng.$location#$locationChangeSuccess $locationChangeSuccess} is fired.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  /**\n   * @ngdoc event\n   * @name $location#$locationChangeSuccess\n   * @eventType broadcast on root scope\n   * @description\n   * Broadcasted after a URL was changed.\n   *\n   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when\n   * the browser supports the HTML5 History API.\n   *\n   * @param {Object} angularEvent Synthetic event object.\n   * @param {string} newUrl New URL\n   * @param {string=} oldUrl URL that was before it was changed.\n   * @param {string=} newState New history state object\n   * @param {string=} oldState History state object that was before it was changed.\n   */\n\n  this.$get = ['$rootScope', '$browser', '$sniffer', '$rootElement', '$window',\n      function($rootScope, $browser, $sniffer, $rootElement, $window) {\n    var $location,\n        LocationMode,\n        baseHref = $browser.baseHref(), // if base[href] is undefined, it defaults to ''\n        initialUrl = $browser.url(),\n        appBase;\n\n    if (html5Mode.enabled) {\n      if (!baseHref && html5Mode.requireBase) {\n        throw $locationMinErr('nobase',\n          '$location in HTML5 mode requires a <base> tag to be present!');\n      }\n      appBase = serverBase(initialUrl) + (baseHref || '/');\n      LocationMode = $sniffer.history ? LocationHtml5Url : LocationHashbangInHtml5Url;\n    } else {\n      appBase = stripHash(initialUrl);\n      LocationMode = LocationHashbangUrl;\n    }\n    var appBaseNoFile = stripFile(appBase);\n\n    $location = new LocationMode(appBase, appBaseNoFile, '#' + hashPrefix);\n    $location.$$parseLinkUrl(initialUrl, initialUrl);\n\n    $location.$$state = $browser.state();\n\n    var IGNORE_URI_REGEXP = /^\\s*(javascript|mailto):/i;\n\n    // Determine if two URLs are equal despite potentially having different encoding/normalizing\n    //  such as $location.absUrl() vs $browser.url()\n    // See https://github.com/angular/angular.js/issues/16592\n    function urlsEqual(a, b) {\n      return a === b || urlResolve(a).href === urlResolve(b).href;\n    }\n\n    function setBrowserUrlWithFallback(url, replace, state) {\n      var oldUrl = $location.url();\n      var oldState = $location.$$state;\n      try {\n        $browser.url(url, replace, state);\n\n        // Make sure $location.state() returns referentially identical (not just deeply equal)\n        // state object; this makes possible quick checking if the state changed in the digest\n        // loop. Checking deep equality would be too expensive.\n        $location.$$state = $browser.state();\n      } catch (e) {\n        // Restore old values if pushState fails\n        $location.url(oldUrl);\n        $location.$$state = oldState;\n\n        throw e;\n      }\n    }\n\n    $rootElement.on('click', function(event) {\n      var rewriteLinks = html5Mode.rewriteLinks;\n      // TODO(vojta): rewrite link when opening in new tab/window (in legacy browser)\n      // currently we open nice url link and redirect then\n\n      if (!rewriteLinks || event.ctrlKey || event.metaKey || event.shiftKey || event.which === 2 || event.button === 2) return;\n\n      var elm = jqLite(event.target);\n\n      // traverse the DOM up to find first A tag\n      while (nodeName_(elm[0]) !== 'a') {\n        // ignore rewriting if no A tag (reached root element, or no parent - removed from document)\n        if (elm[0] === $rootElement[0] || !(elm = elm.parent())[0]) return;\n      }\n\n      if (isString(rewriteLinks) && isUndefined(elm.attr(rewriteLinks))) return;\n\n      var absHref = elm.prop('href');\n      // get the actual href attribute - see\n      // http://msdn.microsoft.com/en-us/library/ie/dd347148(v=vs.85).aspx\n      var relHref = elm.attr('href') || elm.attr('xlink:href');\n\n      if (isObject(absHref) && absHref.toString() === '[object SVGAnimatedString]') {\n        // SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal, unless during\n        // an animation.\n        absHref = urlResolve(absHref.animVal).href;\n      }\n\n      // Ignore when url is started with javascript: or mailto:\n      if (IGNORE_URI_REGEXP.test(absHref)) return;\n\n      if (absHref && !elm.attr('target') && !event.isDefaultPrevented()) {\n        if ($location.$$parseLinkUrl(absHref, relHref)) {\n          // We do a preventDefault for all urls that are part of the AngularJS application,\n          // in html5mode and also without, so that we are able to abort navigation without\n          // getting double entries in the location history.\n          event.preventDefault();\n          // update location manually\n          if ($location.absUrl() !== $browser.url()) {\n            $rootScope.$apply();\n          }\n        }\n      }\n    });\n\n\n    // rewrite hashbang url <> html5 url\n    if ($location.absUrl() !== initialUrl) {\n      $browser.url($location.absUrl(), true);\n    }\n\n    var initializing = true;\n\n    // update $location when $browser url changes\n    $browser.onUrlChange(function(newUrl, newState) {\n\n      if (!startsWith(newUrl, appBaseNoFile)) {\n        // If we are navigating outside of the app then force a reload\n        $window.location.href = newUrl;\n        return;\n      }\n\n      $rootScope.$evalAsync(function() {\n        var oldUrl = $location.absUrl();\n        var oldState = $location.$$state;\n        var defaultPrevented;\n        $location.$$parse(newUrl);\n        $location.$$state = newState;\n\n        defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n            newState, oldState).defaultPrevented;\n\n        // if the location was changed by a `$locationChangeStart` handler then stop\n        // processing this location change\n        if ($location.absUrl() !== newUrl) return;\n\n        if (defaultPrevented) {\n          $location.$$parse(oldUrl);\n          $location.$$state = oldState;\n          setBrowserUrlWithFallback(oldUrl, false, oldState);\n        } else {\n          initializing = false;\n          afterLocationChange(oldUrl, oldState);\n        }\n      });\n      if (!$rootScope.$$phase) $rootScope.$digest();\n    });\n\n    // update browser\n    $rootScope.$watch(function $locationWatch() {\n      if (initializing || $location.$$urlUpdatedByLocation) {\n        $location.$$urlUpdatedByLocation = false;\n\n        var oldUrl = $browser.url();\n        var newUrl = $location.absUrl();\n        var oldState = $browser.state();\n        var currentReplace = $location.$$replace;\n        var urlOrStateChanged = !urlsEqual(oldUrl, newUrl) ||\n          ($location.$$html5 && $sniffer.history && oldState !== $location.$$state);\n\n        if (initializing || urlOrStateChanged) {\n          initializing = false;\n\n          $rootScope.$evalAsync(function() {\n            var newUrl = $location.absUrl();\n            var defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,\n                $location.$$state, oldState).defaultPrevented;\n\n            // if the location was changed by a `$locationChangeStart` handler then stop\n            // processing this location change\n            if ($location.absUrl() !== newUrl) return;\n\n            if (defaultPrevented) {\n              $location.$$parse(oldUrl);\n              $location.$$state = oldState;\n            } else {\n              if (urlOrStateChanged) {\n                setBrowserUrlWithFallback(newUrl, currentReplace,\n                                          oldState === $location.$$state ? null : $location.$$state);\n              }\n              afterLocationChange(oldUrl, oldState);\n            }\n          });\n        }\n      }\n\n      $location.$$replace = false;\n\n      // we don't need to return anything because $evalAsync will make the digest loop dirty when\n      // there is a change\n    });\n\n    return $location;\n\n    function afterLocationChange(oldUrl, oldState) {\n      $rootScope.$broadcast('$locationChangeSuccess', $location.absUrl(), oldUrl,\n        $location.$$state, oldState);\n    }\n}];\n}\n\n/**\n * @ngdoc service\n * @name $log\n * @requires $window\n *\n * @description\n * Simple service for logging. Default implementation safely writes the message\n * into the browser's console (if present).\n *\n * The main purpose of this service is to simplify debugging and troubleshooting.\n *\n * To reveal the location of the calls to `$log` in the JavaScript console,\n * you can \"blackbox\" the AngularJS source in your browser:\n *\n * [Mozilla description of blackboxing](https://developer.mozilla.org/en-US/docs/Tools/Debugger/How_to/Black_box_a_source).\n * [Chrome description of blackboxing](https://developer.chrome.com/devtools/docs/blackboxing).\n *\n * Note: Not all browsers support blackboxing.\n *\n * The default is to log `debug` messages. You can use\n * {@link ng.$logProvider ng.$logProvider#debugEnabled} to change this.\n *\n * @example\n   <example module=\"logExample\" name=\"log-service\">\n     <file name=\"script.js\">\n       angular.module('logExample', [])\n         .controller('LogController', ['$scope', '$log', function($scope, $log) {\n           $scope.$log = $log;\n           $scope.message = 'Hello World!';\n         }]);\n     </file>\n     <file name=\"index.html\">\n       <div ng-controller=\"LogController\">\n         <p>Reload this page with open console, enter text and hit the log button...</p>\n         <label>Message:\n         <input type=\"text\" ng-model=\"message\" /></label>\n         <button ng-click=\"$log.log(message)\">log</button>\n         <button ng-click=\"$log.warn(message)\">warn</button>\n         <button ng-click=\"$log.info(message)\">info</button>\n         <button ng-click=\"$log.error(message)\">error</button>\n         <button ng-click=\"$log.debug(message)\">debug</button>\n       </div>\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc provider\n * @name $logProvider\n * @this\n *\n * @description\n * Use the `$logProvider` to configure how the application logs messages\n */\nfunction $LogProvider() {\n  var debug = true,\n      self = this;\n\n  /**\n   * @ngdoc method\n   * @name $logProvider#debugEnabled\n   * @description\n   * @param {boolean=} flag enable or disable debug level messages\n   * @returns {*} current value if used as getter or itself (chaining) if used as setter\n   */\n  this.debugEnabled = function(flag) {\n    if (isDefined(flag)) {\n      debug = flag;\n      return this;\n    } else {\n      return debug;\n    }\n  };\n\n  this.$get = ['$window', function($window) {\n    // Support: IE 9-11, Edge 12-14+\n    // IE/Edge display errors in such a way that it requires the user to click in 4 places\n    // to see the stack trace. There is no way to feature-detect it so there's a chance\n    // of the user agent sniffing to go wrong but since it's only about logging, this shouldn't\n    // break apps. Other browsers display errors in a sensible way and some of them map stack\n    // traces along source maps if available so it makes sense to let browsers display it\n    // as they want.\n    var formatStackTrace = msie || /\\bEdge\\//.test($window.navigator && $window.navigator.userAgent);\n\n    return {\n      /**\n       * @ngdoc method\n       * @name $log#log\n       *\n       * @description\n       * Write a log message\n       */\n      log: consoleLog('log'),\n\n      /**\n       * @ngdoc method\n       * @name $log#info\n       *\n       * @description\n       * Write an information message\n       */\n      info: consoleLog('info'),\n\n      /**\n       * @ngdoc method\n       * @name $log#warn\n       *\n       * @description\n       * Write a warning message\n       */\n      warn: consoleLog('warn'),\n\n      /**\n       * @ngdoc method\n       * @name $log#error\n       *\n       * @description\n       * Write an error message\n       */\n      error: consoleLog('error'),\n\n      /**\n       * @ngdoc method\n       * @name $log#debug\n       *\n       * @description\n       * Write a debug message\n       */\n      debug: (function() {\n        var fn = consoleLog('debug');\n\n        return function() {\n          if (debug) {\n            fn.apply(self, arguments);\n          }\n        };\n      })()\n    };\n\n    function formatError(arg) {\n      if (isError(arg)) {\n        if (arg.stack && formatStackTrace) {\n          arg = (arg.message && arg.stack.indexOf(arg.message) === -1)\n              ? 'Error: ' + arg.message + '\\n' + arg.stack\n              : arg.stack;\n        } else if (arg.sourceURL) {\n          arg = arg.message + '\\n' + arg.sourceURL + ':' + arg.line;\n        }\n      }\n      return arg;\n    }\n\n    function consoleLog(type) {\n      var console = $window.console || {},\n          logFn = console[type] || console.log || noop;\n\n      return function() {\n        var args = [];\n        forEach(arguments, function(arg) {\n          args.push(formatError(arg));\n        });\n        // Support: IE 9 only\n        // console methods don't inherit from Function.prototype in IE 9 so we can't\n        // call `logFn.apply(console, args)` directly.\n        return Function.prototype.apply.call(logFn, console, args);\n      };\n    }\n  }];\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\nvar $parseMinErr = minErr('$parse');\n\nvar objectValueOf = {}.constructor.prototype.valueOf;\n\n// Sandboxing AngularJS Expressions\n// ------------------------------\n// AngularJS expressions are no longer sandboxed. So it is now even easier to access arbitrary JS code by\n// various means such as obtaining a reference to native JS functions like the Function constructor.\n//\n// As an example, consider the following AngularJS expression:\n//\n//   {}.toString.constructor('alert(\"evil JS code\")')\n//\n// It is important to realize that if you create an expression from a string that contains user provided\n// content then it is possible that your application contains a security vulnerability to an XSS style attack.\n//\n// See https://docs.angularjs.org/guide/security\n\n\nfunction getStringValue(name) {\n  // Property names must be strings. This means that non-string objects cannot be used\n  // as keys in an object. Any non-string object, including a number, is typecasted\n  // into a string via the toString method.\n  // -- MDN, https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Operators/Property_accessors#Property_names\n  //\n  // So, to ensure that we are checking the same `name` that JavaScript would use, we cast it\n  // to a string. It's not always possible. If `name` is an object and its `toString` method is\n  // 'broken' (doesn't return a string, isn't a function, etc.), an error will be thrown:\n  //\n  // TypeError: Cannot convert object to primitive value\n  //\n  // For performance reasons, we don't catch this error here and allow it to propagate up the call\n  // stack. Note that you'll get the same error in JavaScript if you try to access a property using\n  // such a 'broken' object as a key.\n  return name + '';\n}\n\n\nvar OPERATORS = createMap();\nforEach('+ - * / % === !== == != < > <= >= && || ! = |'.split(' '), function(operator) { OPERATORS[operator] = true; });\nvar ESCAPE = {'n':'\\n', 'f':'\\f', 'r':'\\r', 't':'\\t', 'v':'\\v', '\\'':'\\'', '\"':'\"'};\n\n\n/////////////////////////////////////////\n\n\n/**\n * @constructor\n */\nvar Lexer = function Lexer(options) {\n  this.options = options;\n};\n\nLexer.prototype = {\n  constructor: Lexer,\n\n  lex: function(text) {\n    this.text = text;\n    this.index = 0;\n    this.tokens = [];\n\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      if (ch === '\"' || ch === '\\'') {\n        this.readString(ch);\n      } else if (this.isNumber(ch) || ch === '.' && this.isNumber(this.peek())) {\n        this.readNumber();\n      } else if (this.isIdentifierStart(this.peekMultichar())) {\n        this.readIdent();\n      } else if (this.is(ch, '(){}[].,;:?')) {\n        this.tokens.push({index: this.index, text: ch});\n        this.index++;\n      } else if (this.isWhitespace(ch)) {\n        this.index++;\n      } else {\n        var ch2 = ch + this.peek();\n        var ch3 = ch2 + this.peek(2);\n        var op1 = OPERATORS[ch];\n        var op2 = OPERATORS[ch2];\n        var op3 = OPERATORS[ch3];\n        if (op1 || op2 || op3) {\n          var token = op3 ? ch3 : (op2 ? ch2 : ch);\n          this.tokens.push({index: this.index, text: token, operator: true});\n          this.index += token.length;\n        } else {\n          this.throwError('Unexpected next character ', this.index, this.index + 1);\n        }\n      }\n    }\n    return this.tokens;\n  },\n\n  is: function(ch, chars) {\n    return chars.indexOf(ch) !== -1;\n  },\n\n  peek: function(i) {\n    var num = i || 1;\n    return (this.index + num < this.text.length) ? this.text.charAt(this.index + num) : false;\n  },\n\n  isNumber: function(ch) {\n    return ('0' <= ch && ch <= '9') && typeof ch === 'string';\n  },\n\n  isWhitespace: function(ch) {\n    // IE treats non-breaking space as \\u00A0\n    return (ch === ' ' || ch === '\\r' || ch === '\\t' ||\n            ch === '\\n' || ch === '\\v' || ch === '\\u00A0');\n  },\n\n  isIdentifierStart: function(ch) {\n    return this.options.isIdentifierStart ?\n        this.options.isIdentifierStart(ch, this.codePointAt(ch)) :\n        this.isValidIdentifierStart(ch);\n  },\n\n  isValidIdentifierStart: function(ch) {\n    return ('a' <= ch && ch <= 'z' ||\n            'A' <= ch && ch <= 'Z' ||\n            '_' === ch || ch === '$');\n  },\n\n  isIdentifierContinue: function(ch) {\n    return this.options.isIdentifierContinue ?\n        this.options.isIdentifierContinue(ch, this.codePointAt(ch)) :\n        this.isValidIdentifierContinue(ch);\n  },\n\n  isValidIdentifierContinue: function(ch, cp) {\n    return this.isValidIdentifierStart(ch, cp) || this.isNumber(ch);\n  },\n\n  codePointAt: function(ch) {\n    if (ch.length === 1) return ch.charCodeAt(0);\n    // eslint-disable-next-line no-bitwise\n    return (ch.charCodeAt(0) << 10) + ch.charCodeAt(1) - 0x35FDC00;\n  },\n\n  peekMultichar: function() {\n    var ch = this.text.charAt(this.index);\n    var peek = this.peek();\n    if (!peek) {\n      return ch;\n    }\n    var cp1 = ch.charCodeAt(0);\n    var cp2 = peek.charCodeAt(0);\n    if (cp1 >= 0xD800 && cp1 <= 0xDBFF && cp2 >= 0xDC00 && cp2 <= 0xDFFF) {\n      return ch + peek;\n    }\n    return ch;\n  },\n\n  isExpOperator: function(ch) {\n    return (ch === '-' || ch === '+' || this.isNumber(ch));\n  },\n\n  throwError: function(error, start, end) {\n    end = end || this.index;\n    var colStr = (isDefined(start)\n            ? 's ' + start +  '-' + this.index + ' [' + this.text.substring(start, end) + ']'\n            : ' ' + end);\n    throw $parseMinErr('lexerr', 'Lexer Error: {0} at column{1} in expression [{2}].',\n        error, colStr, this.text);\n  },\n\n  readNumber: function() {\n    var number = '';\n    var start = this.index;\n    while (this.index < this.text.length) {\n      var ch = lowercase(this.text.charAt(this.index));\n      if (ch === '.' || this.isNumber(ch)) {\n        number += ch;\n      } else {\n        var peekCh = this.peek();\n        if (ch === 'e' && this.isExpOperator(peekCh)) {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            peekCh && this.isNumber(peekCh) &&\n            number.charAt(number.length - 1) === 'e') {\n          number += ch;\n        } else if (this.isExpOperator(ch) &&\n            (!peekCh || !this.isNumber(peekCh)) &&\n            number.charAt(number.length - 1) === 'e') {\n          this.throwError('Invalid exponent');\n        } else {\n          break;\n        }\n      }\n      this.index++;\n    }\n    this.tokens.push({\n      index: start,\n      text: number,\n      constant: true,\n      value: Number(number)\n    });\n  },\n\n  readIdent: function() {\n    var start = this.index;\n    this.index += this.peekMultichar().length;\n    while (this.index < this.text.length) {\n      var ch = this.peekMultichar();\n      if (!this.isIdentifierContinue(ch)) {\n        break;\n      }\n      this.index += ch.length;\n    }\n    this.tokens.push({\n      index: start,\n      text: this.text.slice(start, this.index),\n      identifier: true\n    });\n  },\n\n  readString: function(quote) {\n    var start = this.index;\n    this.index++;\n    var string = '';\n    var rawString = quote;\n    var escape = false;\n    while (this.index < this.text.length) {\n      var ch = this.text.charAt(this.index);\n      rawString += ch;\n      if (escape) {\n        if (ch === 'u') {\n          var hex = this.text.substring(this.index + 1, this.index + 5);\n          if (!hex.match(/[\\da-f]{4}/i)) {\n            this.throwError('Invalid unicode escape [\\\\u' + hex + ']');\n          }\n          this.index += 4;\n          string += String.fromCharCode(parseInt(hex, 16));\n        } else {\n          var rep = ESCAPE[ch];\n          string = string + (rep || ch);\n        }\n        escape = false;\n      } else if (ch === '\\\\') {\n        escape = true;\n      } else if (ch === quote) {\n        this.index++;\n        this.tokens.push({\n          index: start,\n          text: rawString,\n          constant: true,\n          value: string\n        });\n        return;\n      } else {\n        string += ch;\n      }\n      this.index++;\n    }\n    this.throwError('Unterminated quote', start);\n  }\n};\n\nvar AST = function AST(lexer, options) {\n  this.lexer = lexer;\n  this.options = options;\n};\n\nAST.Program = 'Program';\nAST.ExpressionStatement = 'ExpressionStatement';\nAST.AssignmentExpression = 'AssignmentExpression';\nAST.ConditionalExpression = 'ConditionalExpression';\nAST.LogicalExpression = 'LogicalExpression';\nAST.BinaryExpression = 'BinaryExpression';\nAST.UnaryExpression = 'UnaryExpression';\nAST.CallExpression = 'CallExpression';\nAST.MemberExpression = 'MemberExpression';\nAST.Identifier = 'Identifier';\nAST.Literal = 'Literal';\nAST.ArrayExpression = 'ArrayExpression';\nAST.Property = 'Property';\nAST.ObjectExpression = 'ObjectExpression';\nAST.ThisExpression = 'ThisExpression';\nAST.LocalsExpression = 'LocalsExpression';\n\n// Internal use only\nAST.NGValueParameter = 'NGValueParameter';\n\nAST.prototype = {\n  ast: function(text) {\n    this.text = text;\n    this.tokens = this.lexer.lex(text);\n\n    var value = this.program();\n\n    if (this.tokens.length !== 0) {\n      this.throwError('is an unexpected token', this.tokens[0]);\n    }\n\n    return value;\n  },\n\n  program: function() {\n    var body = [];\n    while (true) {\n      if (this.tokens.length > 0 && !this.peek('}', ')', ';', ']'))\n        body.push(this.expressionStatement());\n      if (!this.expect(';')) {\n        return { type: AST.Program, body: body};\n      }\n    }\n  },\n\n  expressionStatement: function() {\n    return { type: AST.ExpressionStatement, expression: this.filterChain() };\n  },\n\n  filterChain: function() {\n    var left = this.expression();\n    while (this.expect('|')) {\n      left = this.filter(left);\n    }\n    return left;\n  },\n\n  expression: function() {\n    return this.assignment();\n  },\n\n  assignment: function() {\n    var result = this.ternary();\n    if (this.expect('=')) {\n      if (!isAssignable(result)) {\n        throw $parseMinErr('lval', 'Trying to assign a value to a non l-value');\n      }\n\n      result = { type: AST.AssignmentExpression, left: result, right: this.assignment(), operator: '='};\n    }\n    return result;\n  },\n\n  ternary: function() {\n    var test = this.logicalOR();\n    var alternate;\n    var consequent;\n    if (this.expect('?')) {\n      alternate = this.expression();\n      if (this.consume(':')) {\n        consequent = this.expression();\n        return { type: AST.ConditionalExpression, test: test, alternate: alternate, consequent: consequent};\n      }\n    }\n    return test;\n  },\n\n  logicalOR: function() {\n    var left = this.logicalAND();\n    while (this.expect('||')) {\n      left = { type: AST.LogicalExpression, operator: '||', left: left, right: this.logicalAND() };\n    }\n    return left;\n  },\n\n  logicalAND: function() {\n    var left = this.equality();\n    while (this.expect('&&')) {\n      left = { type: AST.LogicalExpression, operator: '&&', left: left, right: this.equality()};\n    }\n    return left;\n  },\n\n  equality: function() {\n    var left = this.relational();\n    var token;\n    while ((token = this.expect('==','!=','===','!=='))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.relational() };\n    }\n    return left;\n  },\n\n  relational: function() {\n    var left = this.additive();\n    var token;\n    while ((token = this.expect('<', '>', '<=', '>='))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.additive() };\n    }\n    return left;\n  },\n\n  additive: function() {\n    var left = this.multiplicative();\n    var token;\n    while ((token = this.expect('+','-'))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.multiplicative() };\n    }\n    return left;\n  },\n\n  multiplicative: function() {\n    var left = this.unary();\n    var token;\n    while ((token = this.expect('*','/','%'))) {\n      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.unary() };\n    }\n    return left;\n  },\n\n  unary: function() {\n    var token;\n    if ((token = this.expect('+', '-', '!'))) {\n      return { type: AST.UnaryExpression, operator: token.text, prefix: true, argument: this.unary() };\n    } else {\n      return this.primary();\n    }\n  },\n\n  primary: function() {\n    var primary;\n    if (this.expect('(')) {\n      primary = this.filterChain();\n      this.consume(')');\n    } else if (this.expect('[')) {\n      primary = this.arrayDeclaration();\n    } else if (this.expect('{')) {\n      primary = this.object();\n    } else if (this.selfReferential.hasOwnProperty(this.peek().text)) {\n      primary = copy(this.selfReferential[this.consume().text]);\n    } else if (this.options.literals.hasOwnProperty(this.peek().text)) {\n      primary = { type: AST.Literal, value: this.options.literals[this.consume().text]};\n    } else if (this.peek().identifier) {\n      primary = this.identifier();\n    } else if (this.peek().constant) {\n      primary = this.constant();\n    } else {\n      this.throwError('not a primary expression', this.peek());\n    }\n\n    var next;\n    while ((next = this.expect('(', '[', '.'))) {\n      if (next.text === '(') {\n        primary = {type: AST.CallExpression, callee: primary, arguments: this.parseArguments() };\n        this.consume(')');\n      } else if (next.text === '[') {\n        primary = { type: AST.MemberExpression, object: primary, property: this.expression(), computed: true };\n        this.consume(']');\n      } else if (next.text === '.') {\n        primary = { type: AST.MemberExpression, object: primary, property: this.identifier(), computed: false };\n      } else {\n        this.throwError('IMPOSSIBLE');\n      }\n    }\n    return primary;\n  },\n\n  filter: function(baseExpression) {\n    var args = [baseExpression];\n    var result = {type: AST.CallExpression, callee: this.identifier(), arguments: args, filter: true};\n\n    while (this.expect(':')) {\n      args.push(this.expression());\n    }\n\n    return result;\n  },\n\n  parseArguments: function() {\n    var args = [];\n    if (this.peekToken().text !== ')') {\n      do {\n        args.push(this.filterChain());\n      } while (this.expect(','));\n    }\n    return args;\n  },\n\n  identifier: function() {\n    var token = this.consume();\n    if (!token.identifier) {\n      this.throwError('is not a valid identifier', token);\n    }\n    return { type: AST.Identifier, name: token.text };\n  },\n\n  constant: function() {\n    // TODO check that it is a constant\n    return { type: AST.Literal, value: this.consume().value };\n  },\n\n  arrayDeclaration: function() {\n    var elements = [];\n    if (this.peekToken().text !== ']') {\n      do {\n        if (this.peek(']')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        elements.push(this.expression());\n      } while (this.expect(','));\n    }\n    this.consume(']');\n\n    return { type: AST.ArrayExpression, elements: elements };\n  },\n\n  object: function() {\n    var properties = [], property;\n    if (this.peekToken().text !== '}') {\n      do {\n        if (this.peek('}')) {\n          // Support trailing commas per ES5.1.\n          break;\n        }\n        property = {type: AST.Property, kind: 'init'};\n        if (this.peek().constant) {\n          property.key = this.constant();\n          property.computed = false;\n          this.consume(':');\n          property.value = this.expression();\n        } else if (this.peek().identifier) {\n          property.key = this.identifier();\n          property.computed = false;\n          if (this.peek(':')) {\n            this.consume(':');\n            property.value = this.expression();\n          } else {\n            property.value = property.key;\n          }\n        } else if (this.peek('[')) {\n          this.consume('[');\n          property.key = this.expression();\n          this.consume(']');\n          property.computed = true;\n          this.consume(':');\n          property.value = this.expression();\n        } else {\n          this.throwError('invalid key', this.peek());\n        }\n        properties.push(property);\n      } while (this.expect(','));\n    }\n    this.consume('}');\n\n    return {type: AST.ObjectExpression, properties: properties };\n  },\n\n  throwError: function(msg, token) {\n    throw $parseMinErr('syntax',\n        'Syntax Error: Token \\'{0}\\' {1} at column {2} of the expression [{3}] starting at [{4}].',\n          token.text, msg, (token.index + 1), this.text, this.text.substring(token.index));\n  },\n\n  consume: function(e1) {\n    if (this.tokens.length === 0) {\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    }\n\n    var token = this.expect(e1);\n    if (!token) {\n      this.throwError('is unexpected, expecting [' + e1 + ']', this.peek());\n    }\n    return token;\n  },\n\n  peekToken: function() {\n    if (this.tokens.length === 0) {\n      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);\n    }\n    return this.tokens[0];\n  },\n\n  peek: function(e1, e2, e3, e4) {\n    return this.peekAhead(0, e1, e2, e3, e4);\n  },\n\n  peekAhead: function(i, e1, e2, e3, e4) {\n    if (this.tokens.length > i) {\n      var token = this.tokens[i];\n      var t = token.text;\n      if (t === e1 || t === e2 || t === e3 || t === e4 ||\n          (!e1 && !e2 && !e3 && !e4)) {\n        return token;\n      }\n    }\n    return false;\n  },\n\n  expect: function(e1, e2, e3, e4) {\n    var token = this.peek(e1, e2, e3, e4);\n    if (token) {\n      this.tokens.shift();\n      return token;\n    }\n    return false;\n  },\n\n  selfReferential: {\n    'this': {type: AST.ThisExpression },\n    '$locals': {type: AST.LocalsExpression }\n  }\n};\n\nfunction ifDefined(v, d) {\n  return typeof v !== 'undefined' ? v : d;\n}\n\nfunction plusFn(l, r) {\n  if (typeof l === 'undefined') return r;\n  if (typeof r === 'undefined') return l;\n  return l + r;\n}\n\nfunction isStateless($filter, filterName) {\n  var fn = $filter(filterName);\n  return !fn.$stateful;\n}\n\nvar PURITY_ABSOLUTE = 1;\nvar PURITY_RELATIVE = 2;\n\n// Detect nodes which could depend on non-shallow state of objects\nfunction isPure(node, parentIsPure) {\n  switch (node.type) {\n    // Computed members might invoke a stateful toString()\n    case AST.MemberExpression:\n      if (node.computed) {\n        return false;\n      }\n      break;\n\n    // Unary always convert to primative\n    case AST.UnaryExpression:\n      return PURITY_ABSOLUTE;\n\n    // The binary + operator can invoke a stateful toString().\n    case AST.BinaryExpression:\n      return node.operator !== '+' ? PURITY_ABSOLUTE : false;\n\n    // Functions / filters probably read state from within objects\n    case AST.CallExpression:\n      return false;\n  }\n\n  return (undefined === parentIsPure) ? PURITY_RELATIVE : parentIsPure;\n}\n\nfunction findConstantAndWatchExpressions(ast, $filter, parentIsPure) {\n  var allConstants;\n  var argsToWatch;\n  var isStatelessFilter;\n\n  var astIsPure = ast.isPure = isPure(ast, parentIsPure);\n\n  switch (ast.type) {\n  case AST.Program:\n    allConstants = true;\n    forEach(ast.body, function(expr) {\n      findConstantAndWatchExpressions(expr.expression, $filter, astIsPure);\n      allConstants = allConstants && expr.expression.constant;\n    });\n    ast.constant = allConstants;\n    break;\n  case AST.Literal:\n    ast.constant = true;\n    ast.toWatch = [];\n    break;\n  case AST.UnaryExpression:\n    findConstantAndWatchExpressions(ast.argument, $filter, astIsPure);\n    ast.constant = ast.argument.constant;\n    ast.toWatch = ast.argument.toWatch;\n    break;\n  case AST.BinaryExpression:\n    findConstantAndWatchExpressions(ast.left, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.right, $filter, astIsPure);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = ast.left.toWatch.concat(ast.right.toWatch);\n    break;\n  case AST.LogicalExpression:\n    findConstantAndWatchExpressions(ast.left, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.right, $filter, astIsPure);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.ConditionalExpression:\n    findConstantAndWatchExpressions(ast.test, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.alternate, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.consequent, $filter, astIsPure);\n    ast.constant = ast.test.constant && ast.alternate.constant && ast.consequent.constant;\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.Identifier:\n    ast.constant = false;\n    ast.toWatch = [ast];\n    break;\n  case AST.MemberExpression:\n    findConstantAndWatchExpressions(ast.object, $filter, astIsPure);\n    if (ast.computed) {\n      findConstantAndWatchExpressions(ast.property, $filter, astIsPure);\n    }\n    ast.constant = ast.object.constant && (!ast.computed || ast.property.constant);\n    ast.toWatch = ast.constant ? [] : [ast];\n    break;\n  case AST.CallExpression:\n    isStatelessFilter = ast.filter ? isStateless($filter, ast.callee.name) : false;\n    allConstants = isStatelessFilter;\n    argsToWatch = [];\n    forEach(ast.arguments, function(expr) {\n      findConstantAndWatchExpressions(expr, $filter, astIsPure);\n      allConstants = allConstants && expr.constant;\n      argsToWatch.push.apply(argsToWatch, expr.toWatch);\n    });\n    ast.constant = allConstants;\n    ast.toWatch = isStatelessFilter ? argsToWatch : [ast];\n    break;\n  case AST.AssignmentExpression:\n    findConstantAndWatchExpressions(ast.left, $filter, astIsPure);\n    findConstantAndWatchExpressions(ast.right, $filter, astIsPure);\n    ast.constant = ast.left.constant && ast.right.constant;\n    ast.toWatch = [ast];\n    break;\n  case AST.ArrayExpression:\n    allConstants = true;\n    argsToWatch = [];\n    forEach(ast.elements, function(expr) {\n      findConstantAndWatchExpressions(expr, $filter, astIsPure);\n      allConstants = allConstants && expr.constant;\n      argsToWatch.push.apply(argsToWatch, expr.toWatch);\n    });\n    ast.constant = allConstants;\n    ast.toWatch = argsToWatch;\n    break;\n  case AST.ObjectExpression:\n    allConstants = true;\n    argsToWatch = [];\n    forEach(ast.properties, function(property) {\n      findConstantAndWatchExpressions(property.value, $filter, astIsPure);\n      allConstants = allConstants && property.value.constant;\n      argsToWatch.push.apply(argsToWatch, property.value.toWatch);\n      if (property.computed) {\n        //`{[key]: value}` implicitly does `key.toString()` which may be non-pure\n        findConstantAndWatchExpressions(property.key, $filter, /*parentIsPure=*/false);\n        allConstants = allConstants && property.key.constant;\n        argsToWatch.push.apply(argsToWatch, property.key.toWatch);\n      }\n    });\n    ast.constant = allConstants;\n    ast.toWatch = argsToWatch;\n    break;\n  case AST.ThisExpression:\n    ast.constant = false;\n    ast.toWatch = [];\n    break;\n  case AST.LocalsExpression:\n    ast.constant = false;\n    ast.toWatch = [];\n    break;\n  }\n}\n\nfunction getInputs(body) {\n  if (body.length !== 1) return;\n  var lastExpression = body[0].expression;\n  var candidate = lastExpression.toWatch;\n  if (candidate.length !== 1) return candidate;\n  return candidate[0] !== lastExpression ? candidate : undefined;\n}\n\nfunction isAssignable(ast) {\n  return ast.type === AST.Identifier || ast.type === AST.MemberExpression;\n}\n\nfunction assignableAST(ast) {\n  if (ast.body.length === 1 && isAssignable(ast.body[0].expression)) {\n    return {type: AST.AssignmentExpression, left: ast.body[0].expression, right: {type: AST.NGValueParameter}, operator: '='};\n  }\n}\n\nfunction isLiteral(ast) {\n  return ast.body.length === 0 ||\n      ast.body.length === 1 && (\n      ast.body[0].expression.type === AST.Literal ||\n      ast.body[0].expression.type === AST.ArrayExpression ||\n      ast.body[0].expression.type === AST.ObjectExpression);\n}\n\nfunction isConstant(ast) {\n  return ast.constant;\n}\n\nfunction ASTCompiler($filter) {\n  this.$filter = $filter;\n}\n\nASTCompiler.prototype = {\n  compile: function(ast) {\n    var self = this;\n    this.state = {\n      nextId: 0,\n      filters: {},\n      fn: {vars: [], body: [], own: {}},\n      assign: {vars: [], body: [], own: {}},\n      inputs: []\n    };\n    findConstantAndWatchExpressions(ast, self.$filter);\n    var extra = '';\n    var assignable;\n    this.stage = 'assign';\n    if ((assignable = assignableAST(ast))) {\n      this.state.computing = 'assign';\n      var result = this.nextId();\n      this.recurse(assignable, result);\n      this.return_(result);\n      extra = 'fn.assign=' + this.generateFunction('assign', 's,v,l');\n    }\n    var toWatch = getInputs(ast.body);\n    self.stage = 'inputs';\n    forEach(toWatch, function(watch, key) {\n      var fnKey = 'fn' + key;\n      self.state[fnKey] = {vars: [], body: [], own: {}};\n      self.state.computing = fnKey;\n      var intoId = self.nextId();\n      self.recurse(watch, intoId);\n      self.return_(intoId);\n      self.state.inputs.push({name: fnKey, isPure: watch.isPure});\n      watch.watchId = key;\n    });\n    this.state.computing = 'fn';\n    this.stage = 'main';\n    this.recurse(ast);\n    var fnString =\n      // The build and minification steps remove the string \"use strict\" from the code, but this is done using a regex.\n      // This is a workaround for this until we do a better job at only removing the prefix only when we should.\n      '\"' + this.USE + ' ' + this.STRICT + '\";\\n' +\n      this.filterPrefix() +\n      'var fn=' + this.generateFunction('fn', 's,l,a,i') +\n      extra +\n      this.watchFns() +\n      'return fn;';\n\n    // eslint-disable-next-line no-new-func\n    var fn = (new Function('$filter',\n        'getStringValue',\n        'ifDefined',\n        'plus',\n        fnString))(\n          this.$filter,\n          getStringValue,\n          ifDefined,\n          plusFn);\n    this.state = this.stage = undefined;\n    return fn;\n  },\n\n  USE: 'use',\n\n  STRICT: 'strict',\n\n  watchFns: function() {\n    var result = [];\n    var inputs = this.state.inputs;\n    var self = this;\n    forEach(inputs, function(input) {\n      result.push('var ' + input.name + '=' + self.generateFunction(input.name, 's'));\n      if (input.isPure) {\n        result.push(input.name, '.isPure=' + JSON.stringify(input.isPure) + ';');\n      }\n    });\n    if (inputs.length) {\n      result.push('fn.inputs=[' + inputs.map(function(i) { return i.name; }).join(',') + '];');\n    }\n    return result.join('');\n  },\n\n  generateFunction: function(name, params) {\n    return 'function(' + params + '){' +\n        this.varsPrefix(name) +\n        this.body(name) +\n        '};';\n  },\n\n  filterPrefix: function() {\n    var parts = [];\n    var self = this;\n    forEach(this.state.filters, function(id, filter) {\n      parts.push(id + '=$filter(' + self.escape(filter) + ')');\n    });\n    if (parts.length) return 'var ' + parts.join(',') + ';';\n    return '';\n  },\n\n  varsPrefix: function(section) {\n    return this.state[section].vars.length ? 'var ' + this.state[section].vars.join(',') + ';' : '';\n  },\n\n  body: function(section) {\n    return this.state[section].body.join('');\n  },\n\n  recurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {\n    var left, right, self = this, args, expression, computed;\n    recursionFn = recursionFn || noop;\n    if (!skipWatchIdCheck && isDefined(ast.watchId)) {\n      intoId = intoId || this.nextId();\n      this.if_('i',\n        this.lazyAssign(intoId, this.computedMember('i', ast.watchId)),\n        this.lazyRecurse(ast, intoId, nameId, recursionFn, create, true)\n      );\n      return;\n    }\n    switch (ast.type) {\n    case AST.Program:\n      forEach(ast.body, function(expression, pos) {\n        self.recurse(expression.expression, undefined, undefined, function(expr) { right = expr; });\n        if (pos !== ast.body.length - 1) {\n          self.current().body.push(right, ';');\n        } else {\n          self.return_(right);\n        }\n      });\n      break;\n    case AST.Literal:\n      expression = this.escape(ast.value);\n      this.assign(intoId, expression);\n      recursionFn(intoId || expression);\n      break;\n    case AST.UnaryExpression:\n      this.recurse(ast.argument, undefined, undefined, function(expr) { right = expr; });\n      expression = ast.operator + '(' + this.ifDefined(right, 0) + ')';\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.BinaryExpression:\n      this.recurse(ast.left, undefined, undefined, function(expr) { left = expr; });\n      this.recurse(ast.right, undefined, undefined, function(expr) { right = expr; });\n      if (ast.operator === '+') {\n        expression = this.plus(left, right);\n      } else if (ast.operator === '-') {\n        expression = this.ifDefined(left, 0) + ast.operator + this.ifDefined(right, 0);\n      } else {\n        expression = '(' + left + ')' + ast.operator + '(' + right + ')';\n      }\n      this.assign(intoId, expression);\n      recursionFn(expression);\n      break;\n    case AST.LogicalExpression:\n      intoId = intoId || this.nextId();\n      self.recurse(ast.left, intoId);\n      self.if_(ast.operator === '&&' ? intoId : self.not(intoId), self.lazyRecurse(ast.right, intoId));\n      recursionFn(intoId);\n      break;\n    case AST.ConditionalExpression:\n      intoId = intoId || this.nextId();\n      self.recurse(ast.test, intoId);\n      self.if_(intoId, self.lazyRecurse(ast.alternate, intoId), self.lazyRecurse(ast.consequent, intoId));\n      recursionFn(intoId);\n      break;\n    case AST.Identifier:\n      intoId = intoId || this.nextId();\n      if (nameId) {\n        nameId.context = self.stage === 'inputs' ? 's' : this.assign(this.nextId(), this.getHasOwnProperty('l', ast.name) + '?l:s');\n        nameId.computed = false;\n        nameId.name = ast.name;\n      }\n      self.if_(self.stage === 'inputs' || self.not(self.getHasOwnProperty('l', ast.name)),\n        function() {\n          self.if_(self.stage === 'inputs' || 's', function() {\n            if (create && create !== 1) {\n              self.if_(\n                self.isNull(self.nonComputedMember('s', ast.name)),\n                self.lazyAssign(self.nonComputedMember('s', ast.name), '{}'));\n            }\n            self.assign(intoId, self.nonComputedMember('s', ast.name));\n          });\n        }, intoId && self.lazyAssign(intoId, self.nonComputedMember('l', ast.name))\n        );\n      recursionFn(intoId);\n      break;\n    case AST.MemberExpression:\n      left = nameId && (nameId.context = this.nextId()) || this.nextId();\n      intoId = intoId || this.nextId();\n      self.recurse(ast.object, left, undefined, function() {\n        self.if_(self.notNull(left), function() {\n          if (ast.computed) {\n            right = self.nextId();\n            self.recurse(ast.property, right);\n            self.getStringValue(right);\n            if (create && create !== 1) {\n              self.if_(self.not(self.computedMember(left, right)), self.lazyAssign(self.computedMember(left, right), '{}'));\n            }\n            expression = self.computedMember(left, right);\n            self.assign(intoId, expression);\n            if (nameId) {\n              nameId.computed = true;\n              nameId.name = right;\n            }\n          } else {\n            if (create && create !== 1) {\n              self.if_(self.isNull(self.nonComputedMember(left, ast.property.name)), self.lazyAssign(self.nonComputedMember(left, ast.property.name), '{}'));\n            }\n            expression = self.nonComputedMember(left, ast.property.name);\n            self.assign(intoId, expression);\n            if (nameId) {\n              nameId.computed = false;\n              nameId.name = ast.property.name;\n            }\n          }\n        }, function() {\n          self.assign(intoId, 'undefined');\n        });\n        recursionFn(intoId);\n      }, !!create);\n      break;\n    case AST.CallExpression:\n      intoId = intoId || this.nextId();\n      if (ast.filter) {\n        right = self.filter(ast.callee.name);\n        args = [];\n        forEach(ast.arguments, function(expr) {\n          var argument = self.nextId();\n          self.recurse(expr, argument);\n          args.push(argument);\n        });\n        expression = right + '(' + args.join(',') + ')';\n        self.assign(intoId, expression);\n        recursionFn(intoId);\n      } else {\n        right = self.nextId();\n        left = {};\n        args = [];\n        self.recurse(ast.callee, right, left, function() {\n          self.if_(self.notNull(right), function() {\n            forEach(ast.arguments, function(expr) {\n              self.recurse(expr, ast.constant ? undefined : self.nextId(), undefined, function(argument) {\n                args.push(argument);\n              });\n            });\n            if (left.name) {\n              expression = self.member(left.context, left.name, left.computed) + '(' + args.join(',') + ')';\n            } else {\n              expression = right + '(' + args.join(',') + ')';\n            }\n            self.assign(intoId, expression);\n          }, function() {\n            self.assign(intoId, 'undefined');\n          });\n          recursionFn(intoId);\n        });\n      }\n      break;\n    case AST.AssignmentExpression:\n      right = this.nextId();\n      left = {};\n      this.recurse(ast.left, undefined, left, function() {\n        self.if_(self.notNull(left.context), function() {\n          self.recurse(ast.right, right);\n          expression = self.member(left.context, left.name, left.computed) + ast.operator + right;\n          self.assign(intoId, expression);\n          recursionFn(intoId || expression);\n        });\n      }, 1);\n      break;\n    case AST.ArrayExpression:\n      args = [];\n      forEach(ast.elements, function(expr) {\n        self.recurse(expr, ast.constant ? undefined : self.nextId(), undefined, function(argument) {\n          args.push(argument);\n        });\n      });\n      expression = '[' + args.join(',') + ']';\n      this.assign(intoId, expression);\n      recursionFn(intoId || expression);\n      break;\n    case AST.ObjectExpression:\n      args = [];\n      computed = false;\n      forEach(ast.properties, function(property) {\n        if (property.computed) {\n          computed = true;\n        }\n      });\n      if (computed) {\n        intoId = intoId || this.nextId();\n        this.assign(intoId, '{}');\n        forEach(ast.properties, function(property) {\n          if (property.computed) {\n            left = self.nextId();\n            self.recurse(property.key, left);\n          } else {\n            left = property.key.type === AST.Identifier ?\n                       property.key.name :\n                       ('' + property.key.value);\n          }\n          right = self.nextId();\n          self.recurse(property.value, right);\n          self.assign(self.member(intoId, left, property.computed), right);\n        });\n      } else {\n        forEach(ast.properties, function(property) {\n          self.recurse(property.value, ast.constant ? undefined : self.nextId(), undefined, function(expr) {\n            args.push(self.escape(\n                property.key.type === AST.Identifier ? property.key.name :\n                  ('' + property.key.value)) +\n                ':' + expr);\n          });\n        });\n        expression = '{' + args.join(',') + '}';\n        this.assign(intoId, expression);\n      }\n      recursionFn(intoId || expression);\n      break;\n    case AST.ThisExpression:\n      this.assign(intoId, 's');\n      recursionFn(intoId || 's');\n      break;\n    case AST.LocalsExpression:\n      this.assign(intoId, 'l');\n      recursionFn(intoId || 'l');\n      break;\n    case AST.NGValueParameter:\n      this.assign(intoId, 'v');\n      recursionFn(intoId || 'v');\n      break;\n    }\n  },\n\n  getHasOwnProperty: function(element, property) {\n    var key = element + '.' + property;\n    var own = this.current().own;\n    if (!own.hasOwnProperty(key)) {\n      own[key] = this.nextId(false, element + '&&(' + this.escape(property) + ' in ' + element + ')');\n    }\n    return own[key];\n  },\n\n  assign: function(id, value) {\n    if (!id) return;\n    this.current().body.push(id, '=', value, ';');\n    return id;\n  },\n\n  filter: function(filterName) {\n    if (!this.state.filters.hasOwnProperty(filterName)) {\n      this.state.filters[filterName] = this.nextId(true);\n    }\n    return this.state.filters[filterName];\n  },\n\n  ifDefined: function(id, defaultValue) {\n    return 'ifDefined(' + id + ',' + this.escape(defaultValue) + ')';\n  },\n\n  plus: function(left, right) {\n    return 'plus(' + left + ',' + right + ')';\n  },\n\n  return_: function(id) {\n    this.current().body.push('return ', id, ';');\n  },\n\n  if_: function(test, alternate, consequent) {\n    if (test === true) {\n      alternate();\n    } else {\n      var body = this.current().body;\n      body.push('if(', test, '){');\n      alternate();\n      body.push('}');\n      if (consequent) {\n        body.push('else{');\n        consequent();\n        body.push('}');\n      }\n    }\n  },\n\n  not: function(expression) {\n    return '!(' + expression + ')';\n  },\n\n  isNull: function(expression) {\n    return expression + '==null';\n  },\n\n  notNull: function(expression) {\n    return expression + '!=null';\n  },\n\n  nonComputedMember: function(left, right) {\n    var SAFE_IDENTIFIER = /^[$_a-zA-Z][$_a-zA-Z0-9]*$/;\n    var UNSAFE_CHARACTERS = /[^$_a-zA-Z0-9]/g;\n    if (SAFE_IDENTIFIER.test(right)) {\n      return left + '.' + right;\n    } else {\n      return left  + '[\"' + right.replace(UNSAFE_CHARACTERS, this.stringEscapeFn) + '\"]';\n    }\n  },\n\n  computedMember: function(left, right) {\n    return left + '[' + right + ']';\n  },\n\n  member: function(left, right, computed) {\n    if (computed) return this.computedMember(left, right);\n    return this.nonComputedMember(left, right);\n  },\n\n  getStringValue: function(item) {\n    this.assign(item, 'getStringValue(' + item + ')');\n  },\n\n  lazyRecurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {\n    var self = this;\n    return function() {\n      self.recurse(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck);\n    };\n  },\n\n  lazyAssign: function(id, value) {\n    var self = this;\n    return function() {\n      self.assign(id, value);\n    };\n  },\n\n  stringEscapeRegex: /[^ a-zA-Z0-9]/g,\n\n  stringEscapeFn: function(c) {\n    return '\\\\u' + ('0000' + c.charCodeAt(0).toString(16)).slice(-4);\n  },\n\n  escape: function(value) {\n    if (isString(value)) return '\\'' + value.replace(this.stringEscapeRegex, this.stringEscapeFn) + '\\'';\n    if (isNumber(value)) return value.toString();\n    if (value === true) return 'true';\n    if (value === false) return 'false';\n    if (value === null) return 'null';\n    if (typeof value === 'undefined') return 'undefined';\n\n    throw $parseMinErr('esc', 'IMPOSSIBLE');\n  },\n\n  nextId: function(skip, init) {\n    var id = 'v' + (this.state.nextId++);\n    if (!skip) {\n      this.current().vars.push(id + (init ? '=' + init : ''));\n    }\n    return id;\n  },\n\n  current: function() {\n    return this.state[this.state.computing];\n  }\n};\n\n\nfunction ASTInterpreter($filter) {\n  this.$filter = $filter;\n}\n\nASTInterpreter.prototype = {\n  compile: function(ast) {\n    var self = this;\n    findConstantAndWatchExpressions(ast, self.$filter);\n    var assignable;\n    var assign;\n    if ((assignable = assignableAST(ast))) {\n      assign = this.recurse(assignable);\n    }\n    var toWatch = getInputs(ast.body);\n    var inputs;\n    if (toWatch) {\n      inputs = [];\n      forEach(toWatch, function(watch, key) {\n        var input = self.recurse(watch);\n        input.isPure = watch.isPure;\n        watch.input = input;\n        inputs.push(input);\n        watch.watchId = key;\n      });\n    }\n    var expressions = [];\n    forEach(ast.body, function(expression) {\n      expressions.push(self.recurse(expression.expression));\n    });\n    var fn = ast.body.length === 0 ? noop :\n             ast.body.length === 1 ? expressions[0] :\n             function(scope, locals) {\n               var lastValue;\n               forEach(expressions, function(exp) {\n                 lastValue = exp(scope, locals);\n               });\n               return lastValue;\n             };\n    if (assign) {\n      fn.assign = function(scope, value, locals) {\n        return assign(scope, locals, value);\n      };\n    }\n    if (inputs) {\n      fn.inputs = inputs;\n    }\n    return fn;\n  },\n\n  recurse: function(ast, context, create) {\n    var left, right, self = this, args;\n    if (ast.input) {\n      return this.inputs(ast.input, ast.watchId);\n    }\n    switch (ast.type) {\n    case AST.Literal:\n      return this.value(ast.value, context);\n    case AST.UnaryExpression:\n      right = this.recurse(ast.argument);\n      return this['unary' + ast.operator](right, context);\n    case AST.BinaryExpression:\n      left = this.recurse(ast.left);\n      right = this.recurse(ast.right);\n      return this['binary' + ast.operator](left, right, context);\n    case AST.LogicalExpression:\n      left = this.recurse(ast.left);\n      right = this.recurse(ast.right);\n      return this['binary' + ast.operator](left, right, context);\n    case AST.ConditionalExpression:\n      return this['ternary?:'](\n        this.recurse(ast.test),\n        this.recurse(ast.alternate),\n        this.recurse(ast.consequent),\n        context\n      );\n    case AST.Identifier:\n      return self.identifier(ast.name, context, create);\n    case AST.MemberExpression:\n      left = this.recurse(ast.object, false, !!create);\n      if (!ast.computed) {\n        right = ast.property.name;\n      }\n      if (ast.computed) right = this.recurse(ast.property);\n      return ast.computed ?\n        this.computedMember(left, right, context, create) :\n        this.nonComputedMember(left, right, context, create);\n    case AST.CallExpression:\n      args = [];\n      forEach(ast.arguments, function(expr) {\n        args.push(self.recurse(expr));\n      });\n      if (ast.filter) right = this.$filter(ast.callee.name);\n      if (!ast.filter) right = this.recurse(ast.callee, true);\n      return ast.filter ?\n        function(scope, locals, assign, inputs) {\n          var values = [];\n          for (var i = 0; i < args.length; ++i) {\n            values.push(args[i](scope, locals, assign, inputs));\n          }\n          var value = right.apply(undefined, values, inputs);\n          return context ? {context: undefined, name: undefined, value: value} : value;\n        } :\n        function(scope, locals, assign, inputs) {\n          var rhs = right(scope, locals, assign, inputs);\n          var value;\n          if (rhs.value != null) {\n            var values = [];\n            for (var i = 0; i < args.length; ++i) {\n              values.push(args[i](scope, locals, assign, inputs));\n            }\n            value = rhs.value.apply(rhs.context, values);\n          }\n          return context ? {value: value} : value;\n        };\n    case AST.AssignmentExpression:\n      left = this.recurse(ast.left, true, 1);\n      right = this.recurse(ast.right);\n      return function(scope, locals, assign, inputs) {\n        var lhs = left(scope, locals, assign, inputs);\n        var rhs = right(scope, locals, assign, inputs);\n        lhs.context[lhs.name] = rhs;\n        return context ? {value: rhs} : rhs;\n      };\n    case AST.ArrayExpression:\n      args = [];\n      forEach(ast.elements, function(expr) {\n        args.push(self.recurse(expr));\n      });\n      return function(scope, locals, assign, inputs) {\n        var value = [];\n        for (var i = 0; i < args.length; ++i) {\n          value.push(args[i](scope, locals, assign, inputs));\n        }\n        return context ? {value: value} : value;\n      };\n    case AST.ObjectExpression:\n      args = [];\n      forEach(ast.properties, function(property) {\n        if (property.computed) {\n          args.push({key: self.recurse(property.key),\n                     computed: true,\n                     value: self.recurse(property.value)\n          });\n        } else {\n          args.push({key: property.key.type === AST.Identifier ?\n                          property.key.name :\n                          ('' + property.key.value),\n                     computed: false,\n                     value: self.recurse(property.value)\n          });\n        }\n      });\n      return function(scope, locals, assign, inputs) {\n        var value = {};\n        for (var i = 0; i < args.length; ++i) {\n          if (args[i].computed) {\n            value[args[i].key(scope, locals, assign, inputs)] = args[i].value(scope, locals, assign, inputs);\n          } else {\n            value[args[i].key] = args[i].value(scope, locals, assign, inputs);\n          }\n        }\n        return context ? {value: value} : value;\n      };\n    case AST.ThisExpression:\n      return function(scope) {\n        return context ? {value: scope} : scope;\n      };\n    case AST.LocalsExpression:\n      return function(scope, locals) {\n        return context ? {value: locals} : locals;\n      };\n    case AST.NGValueParameter:\n      return function(scope, locals, assign) {\n        return context ? {value: assign} : assign;\n      };\n    }\n  },\n\n  'unary+': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = argument(scope, locals, assign, inputs);\n      if (isDefined(arg)) {\n        arg = +arg;\n      } else {\n        arg = 0;\n      }\n      return context ? {value: arg} : arg;\n    };\n  },\n  'unary-': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = argument(scope, locals, assign, inputs);\n      if (isDefined(arg)) {\n        arg = -arg;\n      } else {\n        arg = -0;\n      }\n      return context ? {value: arg} : arg;\n    };\n  },\n  'unary!': function(argument, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = !argument(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary+': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs = right(scope, locals, assign, inputs);\n      var arg = plusFn(lhs, rhs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary-': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs = right(scope, locals, assign, inputs);\n      var arg = (isDefined(lhs) ? lhs : 0) - (isDefined(rhs) ? rhs : 0);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary*': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) * right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary/': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) / right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary%': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) % right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary===': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) === right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary!==': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) !== right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary==': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      // eslint-disable-next-line eqeqeq\n      var arg = left(scope, locals, assign, inputs) == right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary!=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      // eslint-disable-next-line eqeqeq\n      var arg = left(scope, locals, assign, inputs) != right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary<': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) < right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary>': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) > right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary<=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) <= right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary>=': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) >= right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary&&': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) && right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'binary||': function(left, right, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = left(scope, locals, assign, inputs) || right(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  'ternary?:': function(test, alternate, consequent, context) {\n    return function(scope, locals, assign, inputs) {\n      var arg = test(scope, locals, assign, inputs) ? alternate(scope, locals, assign, inputs) : consequent(scope, locals, assign, inputs);\n      return context ? {value: arg} : arg;\n    };\n  },\n  value: function(value, context) {\n    return function() { return context ? {context: undefined, name: undefined, value: value} : value; };\n  },\n  identifier: function(name, context, create) {\n    return function(scope, locals, assign, inputs) {\n      var base = locals && (name in locals) ? locals : scope;\n      if (create && create !== 1 && base && base[name] == null) {\n        base[name] = {};\n      }\n      var value = base ? base[name] : undefined;\n      if (context) {\n        return {context: base, name: name, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  computedMember: function(left, right, context, create) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      var rhs;\n      var value;\n      if (lhs != null) {\n        rhs = right(scope, locals, assign, inputs);\n        rhs = getStringValue(rhs);\n        if (create && create !== 1) {\n          if (lhs && !(lhs[rhs])) {\n            lhs[rhs] = {};\n          }\n        }\n        value = lhs[rhs];\n      }\n      if (context) {\n        return {context: lhs, name: rhs, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  nonComputedMember: function(left, right, context, create) {\n    return function(scope, locals, assign, inputs) {\n      var lhs = left(scope, locals, assign, inputs);\n      if (create && create !== 1) {\n        if (lhs && lhs[right] == null) {\n          lhs[right] = {};\n        }\n      }\n      var value = lhs != null ? lhs[right] : undefined;\n      if (context) {\n        return {context: lhs, name: right, value: value};\n      } else {\n        return value;\n      }\n    };\n  },\n  inputs: function(input, watchId) {\n    return function(scope, value, locals, inputs) {\n      if (inputs) return inputs[watchId];\n      return input(scope, value, locals);\n    };\n  }\n};\n\n/**\n * @constructor\n */\nfunction Parser(lexer, $filter, options) {\n  this.ast = new AST(lexer, options);\n  this.astCompiler = options.csp ? new ASTInterpreter($filter) :\n                                   new ASTCompiler($filter);\n}\n\nParser.prototype = {\n  constructor: Parser,\n\n  parse: function(text) {\n    var ast = this.getAst(text);\n    var fn = this.astCompiler.compile(ast.ast);\n    fn.literal = isLiteral(ast.ast);\n    fn.constant = isConstant(ast.ast);\n    fn.oneTime = ast.oneTime;\n    return fn;\n  },\n\n  getAst: function(exp) {\n    var oneTime = false;\n    exp = exp.trim();\n\n    if (exp.charAt(0) === ':' && exp.charAt(1) === ':') {\n      oneTime = true;\n      exp = exp.substring(2);\n    }\n    return {\n      ast: this.ast.ast(exp),\n      oneTime: oneTime\n    };\n  }\n};\n\nfunction getValueOf(value) {\n  return isFunction(value.valueOf) ? value.valueOf() : objectValueOf.call(value);\n}\n\n///////////////////////////////////\n\n/**\n * @ngdoc service\n * @name $parse\n * @kind function\n *\n * @description\n *\n * Converts AngularJS {@link guide/expression expression} into a function.\n *\n * ```js\n *   var getter = $parse('user.name');\n *   var setter = getter.assign;\n *   var context = {user:{name:'AngularJS'}};\n *   var locals = {user:{name:'local'}};\n *\n *   expect(getter(context)).toEqual('AngularJS');\n *   setter(context, 'newValue');\n *   expect(context.user.name).toEqual('newValue');\n *   expect(getter(context, locals)).toEqual('local');\n * ```\n *\n *\n * @param {string} expression String expression to compile.\n * @returns {function(context, locals)} a function which represents the compiled expression:\n *\n *    * `context` – `{object}` – an object against which any expressions embedded in the strings\n *      are evaluated against (typically a scope object).\n *    * `locals` – `{object=}` – local variables context object, useful for overriding values in\n *      `context`.\n *\n *    The returned function also has the following properties:\n *      * `literal` – `{boolean}` – whether the expression's top-level node is a JavaScript\n *        literal.\n *      * `constant` – `{boolean}` – whether the expression is made entirely of JavaScript\n *        constant literals.\n *      * `assign` – `{?function(context, value)}` – if the expression is assignable, this will be\n *        set to a function to change its value on the given context.\n *\n */\n\n\n/**\n * @ngdoc provider\n * @name $parseProvider\n * @this\n *\n * @description\n * `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse}\n *  service.\n */\nfunction $ParseProvider() {\n  var cache = createMap();\n  var literals = {\n    'true': true,\n    'false': false,\n    'null': null,\n    'undefined': undefined\n  };\n  var identStart, identContinue;\n\n  /**\n   * @ngdoc method\n   * @name $parseProvider#addLiteral\n   * @description\n   *\n   * Configure $parse service to add literal values that will be present as literal at expressions.\n   *\n   * @param {string} literalName Token for the literal value. The literal name value must be a valid literal name.\n   * @param {*} literalValue Value for this literal. All literal values must be primitives or `undefined`.\n   *\n   **/\n  this.addLiteral = function(literalName, literalValue) {\n    literals[literalName] = literalValue;\n  };\n\n /**\n  * @ngdoc method\n  * @name $parseProvider#setIdentifierFns\n  *\n  * @description\n  *\n  * Allows defining the set of characters that are allowed in AngularJS expressions. The function\n  * `identifierStart` will get called to know if a given character is a valid character to be the\n  * first character for an identifier. The function `identifierContinue` will get called to know if\n  * a given character is a valid character to be a follow-up identifier character. The functions\n  * `identifierStart` and `identifierContinue` will receive as arguments the single character to be\n  * identifier and the character code point. These arguments will be `string` and `numeric`. Keep in\n  * mind that the `string` parameter can be two characters long depending on the character\n  * representation. It is expected for the function to return `true` or `false`, whether that\n  * character is allowed or not.\n  *\n  * Since this function will be called extensively, keep the implementation of these functions fast,\n  * as the performance of these functions have a direct impact on the expressions parsing speed.\n  *\n  * @param {function=} identifierStart The function that will decide whether the given character is\n  *   a valid identifier start character.\n  * @param {function=} identifierContinue The function that will decide whether the given character is\n  *   a valid identifier continue character.\n  */\n  this.setIdentifierFns = function(identifierStart, identifierContinue) {\n    identStart = identifierStart;\n    identContinue = identifierContinue;\n    return this;\n  };\n\n  this.$get = ['$filter', function($filter) {\n    var noUnsafeEval = csp().noUnsafeEval;\n    var $parseOptions = {\n          csp: noUnsafeEval,\n          literals: copy(literals),\n          isIdentifierStart: isFunction(identStart) && identStart,\n          isIdentifierContinue: isFunction(identContinue) && identContinue\n        };\n    $parse.$$getAst = $$getAst;\n    return $parse;\n\n    function $parse(exp, interceptorFn) {\n      var parsedExpression, cacheKey;\n\n      switch (typeof exp) {\n        case 'string':\n          exp = exp.trim();\n          cacheKey = exp;\n\n          parsedExpression = cache[cacheKey];\n\n          if (!parsedExpression) {\n            var lexer = new Lexer($parseOptions);\n            var parser = new Parser(lexer, $filter, $parseOptions);\n            parsedExpression = parser.parse(exp);\n\n            cache[cacheKey] = addWatchDelegate(parsedExpression);\n          }\n          return addInterceptor(parsedExpression, interceptorFn);\n\n        case 'function':\n          return addInterceptor(exp, interceptorFn);\n\n        default:\n          return addInterceptor(noop, interceptorFn);\n      }\n    }\n\n    function $$getAst(exp) {\n      var lexer = new Lexer($parseOptions);\n      var parser = new Parser(lexer, $filter, $parseOptions);\n      return parser.getAst(exp).ast;\n    }\n\n    function expressionInputDirtyCheck(newValue, oldValueOfValue, compareObjectIdentity) {\n\n      if (newValue == null || oldValueOfValue == null) { // null/undefined\n        return newValue === oldValueOfValue;\n      }\n\n      if (typeof newValue === 'object') {\n\n        // attempt to convert the value to a primitive type\n        // TODO(docs): add a note to docs that by implementing valueOf even objects and arrays can\n        //             be cheaply dirty-checked\n        newValue = getValueOf(newValue);\n\n        if (typeof newValue === 'object' && !compareObjectIdentity) {\n          // objects/arrays are not supported - deep-watching them would be too expensive\n          return false;\n        }\n\n        // fall-through to the primitive equality check\n      }\n\n      //Primitive or NaN\n      // eslint-disable-next-line no-self-compare\n      return newValue === oldValueOfValue || (newValue !== newValue && oldValueOfValue !== oldValueOfValue);\n    }\n\n    function inputsWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) {\n      var inputExpressions = parsedExpression.inputs;\n      var lastResult;\n\n      if (inputExpressions.length === 1) {\n        var oldInputValueOf = expressionInputDirtyCheck; // init to something unique so that equals check fails\n        inputExpressions = inputExpressions[0];\n        return scope.$watch(function expressionInputWatch(scope) {\n          var newInputValue = inputExpressions(scope);\n          if (!expressionInputDirtyCheck(newInputValue, oldInputValueOf, inputExpressions.isPure)) {\n            lastResult = parsedExpression(scope, undefined, undefined, [newInputValue]);\n            oldInputValueOf = newInputValue && getValueOf(newInputValue);\n          }\n          return lastResult;\n        }, listener, objectEquality, prettyPrintExpression);\n      }\n\n      var oldInputValueOfValues = [];\n      var oldInputValues = [];\n      for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n        oldInputValueOfValues[i] = expressionInputDirtyCheck; // init to something unique so that equals check fails\n        oldInputValues[i] = null;\n      }\n\n      return scope.$watch(function expressionInputsWatch(scope) {\n        var changed = false;\n\n        for (var i = 0, ii = inputExpressions.length; i < ii; i++) {\n          var newInputValue = inputExpressions[i](scope);\n          if (changed || (changed = !expressionInputDirtyCheck(newInputValue, oldInputValueOfValues[i], inputExpressions[i].isPure))) {\n            oldInputValues[i] = newInputValue;\n            oldInputValueOfValues[i] = newInputValue && getValueOf(newInputValue);\n          }\n        }\n\n        if (changed) {\n          lastResult = parsedExpression(scope, undefined, undefined, oldInputValues);\n        }\n\n        return lastResult;\n      }, listener, objectEquality, prettyPrintExpression);\n    }\n\n    function oneTimeWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) {\n      var isDone = parsedExpression.literal ? isAllDefined : isDefined;\n      var unwatch, lastValue;\n\n      var exp = parsedExpression.$$intercepted || parsedExpression;\n      var post = parsedExpression.$$interceptor || identity;\n\n      var useInputs = parsedExpression.inputs && !exp.inputs;\n\n      // Propagate the literal/inputs/constant attributes\n      // ... but not oneTime since we are handling it\n      oneTimeWatch.literal = parsedExpression.literal;\n      oneTimeWatch.constant = parsedExpression.constant;\n      oneTimeWatch.inputs = parsedExpression.inputs;\n\n      // Allow other delegates to run on this wrapped expression\n      addWatchDelegate(oneTimeWatch);\n\n      unwatch = scope.$watch(oneTimeWatch, listener, objectEquality, prettyPrintExpression);\n\n      return unwatch;\n\n      function unwatchIfDone() {\n        if (isDone(lastValue)) {\n          unwatch();\n        }\n      }\n\n      function oneTimeWatch(scope, locals, assign, inputs) {\n        lastValue = useInputs && inputs ? inputs[0] : exp(scope, locals, assign, inputs);\n        if (isDone(lastValue)) {\n          scope.$$postDigest(unwatchIfDone);\n        }\n        return post(lastValue);\n      }\n    }\n\n    function isAllDefined(value) {\n      var allDefined = true;\n      forEach(value, function(val) {\n        if (!isDefined(val)) allDefined = false;\n      });\n      return allDefined;\n    }\n\n    function constantWatchDelegate(scope, listener, objectEquality, parsedExpression) {\n      var unwatch = scope.$watch(function constantWatch(scope) {\n        unwatch();\n        return parsedExpression(scope);\n      }, listener, objectEquality);\n      return unwatch;\n    }\n\n    function addWatchDelegate(parsedExpression) {\n      if (parsedExpression.constant) {\n        parsedExpression.$$watchDelegate = constantWatchDelegate;\n      } else if (parsedExpression.oneTime) {\n        parsedExpression.$$watchDelegate = oneTimeWatchDelegate;\n      } else if (parsedExpression.inputs) {\n        parsedExpression.$$watchDelegate = inputsWatchDelegate;\n      }\n\n      return parsedExpression;\n    }\n\n    function chainInterceptors(first, second) {\n      function chainedInterceptor(value) {\n        return second(first(value));\n      }\n      chainedInterceptor.$stateful = first.$stateful || second.$stateful;\n      chainedInterceptor.$$pure = first.$$pure && second.$$pure;\n\n      return chainedInterceptor;\n    }\n\n    function addInterceptor(parsedExpression, interceptorFn) {\n      if (!interceptorFn) return parsedExpression;\n\n      // Extract any existing interceptors out of the parsedExpression\n      // to ensure the original parsedExpression is always the $$intercepted\n      if (parsedExpression.$$interceptor) {\n        interceptorFn = chainInterceptors(parsedExpression.$$interceptor, interceptorFn);\n        parsedExpression = parsedExpression.$$intercepted;\n      }\n\n      var useInputs = false;\n\n      var fn = function interceptedExpression(scope, locals, assign, inputs) {\n        var value = useInputs && inputs ? inputs[0] : parsedExpression(scope, locals, assign, inputs);\n        return interceptorFn(value);\n      };\n\n      // Maintain references to the interceptor/intercepted\n      fn.$$intercepted = parsedExpression;\n      fn.$$interceptor = interceptorFn;\n\n      // Propagate the literal/oneTime/constant attributes\n      fn.literal = parsedExpression.literal;\n      fn.oneTime = parsedExpression.oneTime;\n      fn.constant = parsedExpression.constant;\n\n      // Treat the interceptor like filters.\n      // If it is not $stateful then only watch its inputs.\n      // If the expression itself has no inputs then use the full expression as an input.\n      if (!interceptorFn.$stateful) {\n        useInputs = !parsedExpression.inputs;\n        fn.inputs = parsedExpression.inputs ? parsedExpression.inputs : [parsedExpression];\n\n        if (!interceptorFn.$$pure) {\n          fn.inputs = fn.inputs.map(function(e) {\n              // Remove the isPure flag of inputs when it is not absolute because they are now wrapped in a\n              // non-pure interceptor function.\n              if (e.isPure === PURITY_RELATIVE) {\n                return function depurifier(s) { return e(s); };\n              }\n              return e;\n            });\n        }\n      }\n\n      return addWatchDelegate(fn);\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $q\n * @requires $rootScope\n *\n * @description\n * A service that helps you run functions asynchronously, and use their return values (or exceptions)\n * when they are done processing.\n *\n * This is a [Promises/A+](https://promisesaplus.com/)-compliant implementation of promises/deferred\n * objects inspired by [Kris Kowal's Q](https://github.com/kriskowal/q).\n *\n * $q can be used in two fashions --- one which is more similar to Kris Kowal's Q or jQuery's Deferred\n * implementations, and the other which resembles ES6 (ES2015) promises to some degree.\n *\n * ## $q constructor\n *\n * The streamlined ES6 style promise is essentially just using $q as a constructor which takes a `resolver`\n * function as the first argument. This is similar to the native Promise implementation from ES6,\n * see [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise).\n *\n * While the constructor-style use is supported, not all of the supporting methods from ES6 promises are\n * available yet.\n *\n * It can be used like so:\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     // perform some asynchronous operation, resolve or reject the promise when appropriate.\n *     return $q(function(resolve, reject) {\n *       setTimeout(function() {\n *         if (okToGreet(name)) {\n *           resolve('Hello, ' + name + '!');\n *         } else {\n *           reject('Greeting ' + name + ' is not allowed.');\n *         }\n *       }, 1000);\n *     });\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   });\n * ```\n *\n * Note: progress/notify callbacks are not currently supported via the ES6-style interface.\n *\n * Note: unlike ES6 behavior, an exception thrown in the constructor function will NOT implicitly reject the promise.\n *\n * However, the more traditional CommonJS-style usage is still available, and documented below.\n *\n * [The CommonJS Promise proposal](http://wiki.commonjs.org/wiki/Promises) describes a promise as an\n * interface for interacting with an object that represents the result of an action that is\n * performed asynchronously, and may or may not be finished at any given point in time.\n *\n * From the perspective of dealing with error handling, deferred and promise APIs are to\n * asynchronous programming what `try`, `catch` and `throw` keywords are to synchronous programming.\n *\n * ```js\n *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`\n *   // are available in the current lexical scope (they could have been injected or passed in).\n *\n *   function asyncGreet(name) {\n *     var deferred = $q.defer();\n *\n *     setTimeout(function() {\n *       deferred.notify('About to greet ' + name + '.');\n *\n *       if (okToGreet(name)) {\n *         deferred.resolve('Hello, ' + name + '!');\n *       } else {\n *         deferred.reject('Greeting ' + name + ' is not allowed.');\n *       }\n *     }, 1000);\n *\n *     return deferred.promise;\n *   }\n *\n *   var promise = asyncGreet('Robin Hood');\n *   promise.then(function(greeting) {\n *     alert('Success: ' + greeting);\n *   }, function(reason) {\n *     alert('Failed: ' + reason);\n *   }, function(update) {\n *     alert('Got notification: ' + update);\n *   });\n * ```\n *\n * At first it might not be obvious why this extra complexity is worth the trouble. The payoff\n * comes in the way of guarantees that promise and deferred APIs make, see\n * https://github.com/kriskowal/uncommonjs/blob/master/promises/specification.md.\n *\n * Additionally the promise api allows for composition that is very hard to do with the\n * traditional callback ([CPS](http://en.wikipedia.org/wiki/Continuation-passing_style)) approach.\n * For more on this please see the [Q documentation](https://github.com/kriskowal/q) especially the\n * section on serial or parallel joining of promises.\n *\n * ## The Deferred API\n *\n * A new instance of deferred is constructed by calling `$q.defer()`.\n *\n * The purpose of the deferred object is to expose the associated Promise instance as well as APIs\n * that can be used for signaling the successful or unsuccessful completion, as well as the status\n * of the task.\n *\n * **Methods**\n *\n * - `resolve(value)` – resolves the derived promise with the `value`. If the value is a rejection\n *   constructed via `$q.reject`, the promise will be rejected instead.\n * - `reject(reason)` – rejects the derived promise with the `reason`. This is equivalent to\n *   resolving it with a rejection constructed via `$q.reject`.\n * - `notify(value)` - provides updates on the status of the promise's execution. This may be called\n *   multiple times before the promise is either resolved or rejected.\n *\n * **Properties**\n *\n * - promise – `{Promise}` – promise object associated with this deferred.\n *\n *\n * ## The Promise API\n *\n * A new promise instance is created when a deferred instance is created and can be retrieved by\n * calling `deferred.promise`.\n *\n * The purpose of the promise object is to allow for interested parties to get access to the result\n * of the deferred task when it completes.\n *\n * **Methods**\n *\n * - `then(successCallback, [errorCallback], [notifyCallback])` – regardless of when the promise was or\n *   will be resolved or rejected, `then` calls one of the success or error callbacks asynchronously\n *   as soon as the result is available. The callbacks are called with a single argument: the result\n *   or rejection reason. Additionally, the notify callback may be called zero or more times to\n *   provide a progress indication, before the promise is resolved or rejected.\n *\n *   This method *returns a new promise* which is resolved or rejected via the return value of the\n *   `successCallback`, `errorCallback` (unless that value is a promise, in which case it is resolved\n *   with the value which is resolved in that promise using\n *   [promise chaining](http://www.html5rocks.com/en/tutorials/es6/promises/#toc-promises-queues)).\n *   It also notifies via the return value of the `notifyCallback` method. The promise cannot be\n *   resolved or rejected from the notifyCallback method. The errorCallback and notifyCallback\n *   arguments are optional.\n *\n * - `catch(errorCallback)` – shorthand for `promise.then(null, errorCallback)`\n *\n * - `finally(callback, notifyCallback)` – allows you to observe either the fulfillment or rejection of a promise,\n *   but to do so without modifying the final value. This is useful to release resources or do some\n *   clean-up that needs to be done whether the promise was rejected or resolved. See the [full\n *   specification](https://github.com/kriskowal/q/wiki/API-Reference#promisefinallycallback) for\n *   more information.\n *\n * ## Chaining promises\n *\n * Because calling the `then` method of a promise returns a new derived promise, it is easily\n * possible to create a chain of promises:\n *\n * ```js\n *   promiseB = promiseA.then(function(result) {\n *     return result + 1;\n *   });\n *\n *   // promiseB will be resolved immediately after promiseA is resolved and its value\n *   // will be the result of promiseA incremented by 1\n * ```\n *\n * It is possible to create chains of any length and since a promise can be resolved with another\n * promise (which will defer its resolution further), it is possible to pause/defer resolution of\n * the promises at any point in the chain. This makes it possible to implement powerful APIs like\n * $http's response interceptors.\n *\n *\n * ## Differences between Kris Kowal's Q and $q\n *\n *  There are two main differences:\n *\n * - $q is integrated with the {@link ng.$rootScope.Scope} Scope model observation\n *   mechanism in AngularJS, which means faster propagation of resolution or rejection into your\n *   models and avoiding unnecessary browser repaints, which would result in flickering UI.\n * - Q has many more features than $q, but that comes at a cost of bytes. $q is tiny, but contains\n *   all the important functionality needed for common async tasks.\n *\n * ## Testing\n *\n *  ```js\n *    it('should simulate promise', inject(function($q, $rootScope) {\n *      var deferred = $q.defer();\n *      var promise = deferred.promise;\n *      var resolvedValue;\n *\n *      promise.then(function(value) { resolvedValue = value; });\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Simulate resolving of promise\n *      deferred.resolve(123);\n *      // Note that the 'then' function does not get called synchronously.\n *      // This is because we want the promise API to always be async, whether or not\n *      // it got called synchronously or asynchronously.\n *      expect(resolvedValue).toBeUndefined();\n *\n *      // Propagate promise resolution to 'then' functions using $apply().\n *      $rootScope.$apply();\n *      expect(resolvedValue).toEqual(123);\n *    }));\n *  ```\n *\n * @param {function(function, function)} resolver Function which is responsible for resolving or\n *   rejecting the newly created promise. The first parameter is a function which resolves the\n *   promise, the second parameter is a function which rejects the promise.\n *\n * @returns {Promise} The newly created promise.\n */\n/**\n * @ngdoc provider\n * @name $qProvider\n * @this\n *\n * @description\n */\nfunction $QProvider() {\n  var errorOnUnhandledRejections = true;\n  this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $rootScope.$evalAsync(callback);\n    }, $exceptionHandler, errorOnUnhandledRejections);\n  }];\n\n  /**\n   * @ngdoc method\n   * @name $qProvider#errorOnUnhandledRejections\n   * @kind function\n   *\n   * @description\n   * Retrieves or overrides whether to generate an error when a rejected promise is not handled.\n   * This feature is enabled by default.\n   *\n   * @param {boolean=} value Whether to generate an error when a rejected promise is not handled.\n   * @returns {boolean|ng.$qProvider} Current value when called without a new value or self for\n   *    chaining otherwise.\n   */\n  this.errorOnUnhandledRejections = function(value) {\n    if (isDefined(value)) {\n      errorOnUnhandledRejections = value;\n      return this;\n    } else {\n      return errorOnUnhandledRejections;\n    }\n  };\n}\n\n/** @this */\nfunction $$QProvider() {\n  var errorOnUnhandledRejections = true;\n  this.$get = ['$browser', '$exceptionHandler', function($browser, $exceptionHandler) {\n    return qFactory(function(callback) {\n      $browser.defer(callback);\n    }, $exceptionHandler, errorOnUnhandledRejections);\n  }];\n\n  this.errorOnUnhandledRejections = function(value) {\n    if (isDefined(value)) {\n      errorOnUnhandledRejections = value;\n      return this;\n    } else {\n      return errorOnUnhandledRejections;\n    }\n  };\n}\n\n/**\n * Constructs a promise manager.\n *\n * @param {function(function)} nextTick Function for executing functions in the next turn.\n * @param {function(...*)} exceptionHandler Function into which unexpected exceptions are passed for\n *     debugging purposes.\n * @param {boolean=} errorOnUnhandledRejections Whether an error should be generated on unhandled\n *     promises rejections.\n * @returns {object} Promise manager.\n */\nfunction qFactory(nextTick, exceptionHandler, errorOnUnhandledRejections) {\n  var $qMinErr = minErr('$q', TypeError);\n  var queueSize = 0;\n  var checkQueue = [];\n\n  /**\n   * @ngdoc method\n   * @name ng.$q#defer\n   * @kind function\n   *\n   * @description\n   * Creates a `Deferred` object which represents a task which will finish in the future.\n   *\n   * @returns {Deferred} Returns a new instance of deferred.\n   */\n  function defer() {\n    return new Deferred();\n  }\n\n  function Deferred() {\n    var promise = this.promise = new Promise();\n    //Non prototype methods necessary to support unbound execution :/\n    this.resolve = function(val) { resolvePromise(promise, val); };\n    this.reject = function(reason) { rejectPromise(promise, reason); };\n    this.notify = function(progress) { notifyPromise(promise, progress); };\n  }\n\n\n  function Promise() {\n    this.$$state = { status: 0 };\n  }\n\n  extend(Promise.prototype, {\n    then: function(onFulfilled, onRejected, progressBack) {\n      if (isUndefined(onFulfilled) && isUndefined(onRejected) && isUndefined(progressBack)) {\n        return this;\n      }\n      var result = new Promise();\n\n      this.$$state.pending = this.$$state.pending || [];\n      this.$$state.pending.push([result, onFulfilled, onRejected, progressBack]);\n      if (this.$$state.status > 0) scheduleProcessQueue(this.$$state);\n\n      return result;\n    },\n\n    'catch': function(callback) {\n      return this.then(null, callback);\n    },\n\n    'finally': function(callback, progressBack) {\n      return this.then(function(value) {\n        return handleCallback(value, resolve, callback);\n      }, function(error) {\n        return handleCallback(error, reject, callback);\n      }, progressBack);\n    }\n  });\n\n  function processQueue(state) {\n    var fn, promise, pending;\n\n    pending = state.pending;\n    state.processScheduled = false;\n    state.pending = undefined;\n    try {\n      for (var i = 0, ii = pending.length; i < ii; ++i) {\n        markQStateExceptionHandled(state);\n        promise = pending[i][0];\n        fn = pending[i][state.status];\n        try {\n          if (isFunction(fn)) {\n            resolvePromise(promise, fn(state.value));\n          } else if (state.status === 1) {\n            resolvePromise(promise, state.value);\n          } else {\n            rejectPromise(promise, state.value);\n          }\n        } catch (e) {\n          rejectPromise(promise, e);\n          // This error is explicitly marked for being passed to the $exceptionHandler\n          if (e && e.$$passToExceptionHandler === true) {\n            exceptionHandler(e);\n          }\n        }\n      }\n    } finally {\n      --queueSize;\n      if (errorOnUnhandledRejections && queueSize === 0) {\n        nextTick(processChecks);\n      }\n    }\n  }\n\n  function processChecks() {\n    // eslint-disable-next-line no-unmodified-loop-condition\n    while (!queueSize && checkQueue.length) {\n      var toCheck = checkQueue.shift();\n      if (!isStateExceptionHandled(toCheck)) {\n        markQStateExceptionHandled(toCheck);\n        var errorMessage = 'Possibly unhandled rejection: ' + toDebugString(toCheck.value);\n        if (isError(toCheck.value)) {\n          exceptionHandler(toCheck.value, errorMessage);\n        } else {\n          exceptionHandler(errorMessage);\n        }\n      }\n    }\n  }\n\n  function scheduleProcessQueue(state) {\n    if (errorOnUnhandledRejections && !state.pending && state.status === 2 && !isStateExceptionHandled(state)) {\n      if (queueSize === 0 && checkQueue.length === 0) {\n        nextTick(processChecks);\n      }\n      checkQueue.push(state);\n    }\n    if (state.processScheduled || !state.pending) return;\n    state.processScheduled = true;\n    ++queueSize;\n    nextTick(function() { processQueue(state); });\n  }\n\n  function resolvePromise(promise, val) {\n    if (promise.$$state.status) return;\n    if (val === promise) {\n      $$reject(promise, $qMinErr(\n        'qcycle',\n        'Expected promise to be resolved with value other than itself \\'{0}\\'',\n        val));\n    } else {\n      $$resolve(promise, val);\n    }\n\n  }\n\n  function $$resolve(promise, val) {\n    var then;\n    var done = false;\n    try {\n      if (isObject(val) || isFunction(val)) then = val.then;\n      if (isFunction(then)) {\n        promise.$$state.status = -1;\n        then.call(val, doResolve, doReject, doNotify);\n      } else {\n        promise.$$state.value = val;\n        promise.$$state.status = 1;\n        scheduleProcessQueue(promise.$$state);\n      }\n    } catch (e) {\n      doReject(e);\n    }\n\n    function doResolve(val) {\n      if (done) return;\n      done = true;\n      $$resolve(promise, val);\n    }\n    function doReject(val) {\n      if (done) return;\n      done = true;\n      $$reject(promise, val);\n    }\n    function doNotify(progress) {\n      notifyPromise(promise, progress);\n    }\n  }\n\n  function rejectPromise(promise, reason) {\n    if (promise.$$state.status) return;\n    $$reject(promise, reason);\n  }\n\n  function $$reject(promise, reason) {\n    promise.$$state.value = reason;\n    promise.$$state.status = 2;\n    scheduleProcessQueue(promise.$$state);\n  }\n\n  function notifyPromise(promise, progress) {\n    var callbacks = promise.$$state.pending;\n\n    if ((promise.$$state.status <= 0) && callbacks && callbacks.length) {\n      nextTick(function() {\n        var callback, result;\n        for (var i = 0, ii = callbacks.length; i < ii; i++) {\n          result = callbacks[i][0];\n          callback = callbacks[i][3];\n          try {\n            notifyPromise(result, isFunction(callback) ? callback(progress) : progress);\n          } catch (e) {\n            exceptionHandler(e);\n          }\n        }\n      });\n    }\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#reject\n   * @kind function\n   *\n   * @description\n   * Creates a promise that is resolved as rejected with the specified `reason`. This api should be\n   * used to forward rejection in a chain of promises. If you are dealing with the last promise in\n   * a promise chain, you don't need to worry about it.\n   *\n   * When comparing deferreds/promises to the familiar behavior of try/catch/throw, think of\n   * `reject` as the `throw` keyword in JavaScript. This also means that if you \"catch\" an error via\n   * a promise error callback and you want to forward the error to the promise derived from the\n   * current promise, you have to \"rethrow\" the error by returning a rejection constructed via\n   * `reject`.\n   *\n   * ```js\n   *   promiseB = promiseA.then(function(result) {\n   *     // success: do something and resolve promiseB\n   *     //          with the old or a new result\n   *     return result;\n   *   }, function(reason) {\n   *     // error: handle the error if possible and\n   *     //        resolve promiseB with newPromiseOrValue,\n   *     //        otherwise forward the rejection to promiseB\n   *     if (canHandle(reason)) {\n   *      // handle the error and recover\n   *      return newPromiseOrValue;\n   *     }\n   *     return $q.reject(reason);\n   *   });\n   * ```\n   *\n   * @param {*} reason Constant, message, exception or an object representing the rejection reason.\n   * @returns {Promise} Returns a promise that was already resolved as rejected with the `reason`.\n   */\n  function reject(reason) {\n    var result = new Promise();\n    rejectPromise(result, reason);\n    return result;\n  }\n\n  function handleCallback(value, resolver, callback) {\n    var callbackOutput = null;\n    try {\n      if (isFunction(callback)) callbackOutput = callback();\n    } catch (e) {\n      return reject(e);\n    }\n    if (isPromiseLike(callbackOutput)) {\n      return callbackOutput.then(function() {\n        return resolver(value);\n      }, reject);\n    } else {\n      return resolver(value);\n    }\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#when\n   * @kind function\n   *\n   * @description\n   * Wraps an object that might be a value or a (3rd party) then-able promise into a $q promise.\n   * This is useful when you are dealing with an object that might or might not be a promise, or if\n   * the promise comes from a source that can't be trusted.\n   *\n   * @param {*} value Value or a promise\n   * @param {Function=} successCallback\n   * @param {Function=} errorCallback\n   * @param {Function=} progressCallback\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n\n\n  function when(value, callback, errback, progressBack) {\n    var result = new Promise();\n    resolvePromise(result, value);\n    return result.then(callback, errback, progressBack);\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#resolve\n   * @kind function\n   *\n   * @description\n   * Alias of {@link ng.$q#when when} to maintain naming consistency with ES6.\n   *\n   * @param {*} value Value or a promise\n   * @param {Function=} successCallback\n   * @param {Function=} errorCallback\n   * @param {Function=} progressCallback\n   * @returns {Promise} Returns a promise of the passed value or promise\n   */\n  var resolve = when;\n\n  /**\n   * @ngdoc method\n   * @name $q#all\n   * @kind function\n   *\n   * @description\n   * Combines multiple promises into a single promise that is resolved when all of the input\n   * promises are resolved.\n   *\n   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.\n   * @returns {Promise} Returns a single promise that will be resolved with an array/hash of values,\n   *   each value corresponding to the promise at the same index/key in the `promises` array/hash.\n   *   If any of the promises is resolved with a rejection, this resulting promise will be rejected\n   *   with the same rejection value.\n   */\n\n  function all(promises) {\n    var result = new Promise(),\n        counter = 0,\n        results = isArray(promises) ? [] : {};\n\n    forEach(promises, function(promise, key) {\n      counter++;\n      when(promise).then(function(value) {\n        results[key] = value;\n        if (!(--counter)) resolvePromise(result, results);\n      }, function(reason) {\n        rejectPromise(result, reason);\n      });\n    });\n\n    if (counter === 0) {\n      resolvePromise(result, results);\n    }\n\n    return result;\n  }\n\n  /**\n   * @ngdoc method\n   * @name $q#race\n   * @kind function\n   *\n   * @description\n   * Returns a promise that resolves or rejects as soon as one of those promises\n   * resolves or rejects, with the value or reason from that promise.\n   *\n   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.\n   * @returns {Promise} a promise that resolves or rejects as soon as one of the `promises`\n   * resolves or rejects, with the value or reason from that promise.\n   */\n\n  function race(promises) {\n    var deferred = defer();\n\n    forEach(promises, function(promise) {\n      when(promise).then(deferred.resolve, deferred.reject);\n    });\n\n    return deferred.promise;\n  }\n\n  function $Q(resolver) {\n    if (!isFunction(resolver)) {\n      throw $qMinErr('norslvr', 'Expected resolverFn, got \\'{0}\\'', resolver);\n    }\n\n    var promise = new Promise();\n\n    function resolveFn(value) {\n      resolvePromise(promise, value);\n    }\n\n    function rejectFn(reason) {\n      rejectPromise(promise, reason);\n    }\n\n    resolver(resolveFn, rejectFn);\n\n    return promise;\n  }\n\n  // Let's make the instanceof operator work for promises, so that\n  // `new $q(fn) instanceof $q` would evaluate to true.\n  $Q.prototype = Promise.prototype;\n\n  $Q.defer = defer;\n  $Q.reject = reject;\n  $Q.when = when;\n  $Q.resolve = resolve;\n  $Q.all = all;\n  $Q.race = race;\n\n  return $Q;\n}\n\nfunction isStateExceptionHandled(state) {\n  return !!state.pur;\n}\nfunction markQStateExceptionHandled(state) {\n  state.pur = true;\n}\nfunction markQExceptionHandled(q) {\n  // Built-in `$q` promises will always have a `$$state` property. This check is to allow\n  // overwriting `$q` with a different promise library (e.g. Bluebird + angular-bluebird-promises).\n  // (Currently, this is the only method that might be called with a promise, even if it is not\n  // created by the built-in `$q`.)\n  if (q.$$state) {\n    markQStateExceptionHandled(q.$$state);\n  }\n}\n\n/** @this */\nfunction $$RAFProvider() { //rAF\n  this.$get = ['$window', '$timeout', function($window, $timeout) {\n    var requestAnimationFrame = $window.requestAnimationFrame ||\n                                $window.webkitRequestAnimationFrame;\n\n    var cancelAnimationFrame = $window.cancelAnimationFrame ||\n                               $window.webkitCancelAnimationFrame ||\n                               $window.webkitCancelRequestAnimationFrame;\n\n    var rafSupported = !!requestAnimationFrame;\n    var raf = rafSupported\n      ? function(fn) {\n          var id = requestAnimationFrame(fn);\n          return function() {\n            cancelAnimationFrame(id);\n          };\n        }\n      : function(fn) {\n          var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666\n          return function() {\n            $timeout.cancel(timer);\n          };\n        };\n\n    raf.supported = rafSupported;\n\n    return raf;\n  }];\n}\n\n/**\n * DESIGN NOTES\n *\n * The design decisions behind the scope are heavily favored for speed and memory consumption.\n *\n * The typical use of scope is to watch the expressions, which most of the time return the same\n * value as last time so we optimize the operation.\n *\n * Closures construction is expensive in terms of speed as well as memory:\n *   - No closures, instead use prototypical inheritance for API\n *   - Internal state needs to be stored on scope directly, which means that private state is\n *     exposed as $$____ properties\n *\n * Loop operations are optimized by using while(count--) { ... }\n *   - This means that in order to keep the same order of execution as addition we have to add\n *     items to the array at the beginning (unshift) instead of at the end (push)\n *\n * Child scopes are created and removed often\n *   - Using an array would be slow since inserts in the middle are expensive; so we use linked lists\n *\n * There are fewer watches than observers. This is why you don't want the observer to be implemented\n * in the same way as watch. Watch requires return of the initialization function which is expensive\n * to construct.\n */\n\n\n/**\n * @ngdoc provider\n * @name $rootScopeProvider\n * @description\n *\n * Provider for the $rootScope service.\n */\n\n/**\n * @ngdoc method\n * @name $rootScopeProvider#digestTtl\n * @description\n *\n * Sets the number of `$digest` iterations the scope should attempt to execute before giving up and\n * assuming that the model is unstable.\n *\n * The current default is 10 iterations.\n *\n * In complex applications it's possible that the dependencies between `$watch`s will result in\n * several digest iterations. However if an application needs more than the default 10 digest\n * iterations for its model to stabilize then you should investigate what is causing the model to\n * continuously change during the digest.\n *\n * Increasing the TTL could have performance implications, so you should not change it without\n * proper justification.\n *\n * @param {number} limit The number of digest iterations.\n */\n\n\n/**\n * @ngdoc service\n * @name $rootScope\n * @this\n *\n * @description\n *\n * Every application has a single root {@link ng.$rootScope.Scope scope}.\n * All other scopes are descendant scopes of the root scope. Scopes provide separation\n * between the model and the view, via a mechanism for watching the model for changes.\n * They also provide event emission/broadcast and subscription facility. See the\n * {@link guide/scope developer guide on scopes}.\n */\nfunction $RootScopeProvider() {\n  var TTL = 10;\n  var $rootScopeMinErr = minErr('$rootScope');\n  var lastDirtyWatch = null;\n  var applyAsyncId = null;\n\n  this.digestTtl = function(value) {\n    if (arguments.length) {\n      TTL = value;\n    }\n    return TTL;\n  };\n\n  function createChildScopeClass(parent) {\n    function ChildScope() {\n      this.$$watchers = this.$$nextSibling =\n          this.$$childHead = this.$$childTail = null;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$watchersCount = 0;\n      this.$id = nextUid();\n      this.$$ChildScope = null;\n      this.$$suspended = false;\n    }\n    ChildScope.prototype = parent;\n    return ChildScope;\n  }\n\n  this.$get = ['$exceptionHandler', '$parse', '$browser',\n      function($exceptionHandler, $parse, $browser) {\n\n    function destroyChildScope($event) {\n        $event.currentScope.$$destroyed = true;\n    }\n\n    function cleanUpScope($scope) {\n\n      // Support: IE 9 only\n      if (msie === 9) {\n        // There is a memory leak in IE9 if all child scopes are not disconnected\n        // completely when a scope is destroyed. So this code will recurse up through\n        // all this scopes children\n        //\n        // See issue https://github.com/angular/angular.js/issues/10706\n        if ($scope.$$childHead) {\n          cleanUpScope($scope.$$childHead);\n        }\n        if ($scope.$$nextSibling) {\n          cleanUpScope($scope.$$nextSibling);\n        }\n      }\n\n      // The code below works around IE9 and V8's memory leaks\n      //\n      // See:\n      // - https://code.google.com/p/v8/issues/detail?id=2073#c26\n      // - https://github.com/angular/angular.js/issues/6794#issuecomment-38648909\n      // - https://github.com/angular/angular.js/issues/1313#issuecomment-10378451\n\n      $scope.$parent = $scope.$$nextSibling = $scope.$$prevSibling = $scope.$$childHead =\n          $scope.$$childTail = $scope.$root = $scope.$$watchers = null;\n    }\n\n    /**\n     * @ngdoc type\n     * @name $rootScope.Scope\n     *\n     * @description\n     * A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the\n     * {@link auto.$injector $injector}. Child scopes are created using the\n     * {@link ng.$rootScope.Scope#$new $new()} method. (Most scopes are created automatically when\n     * compiled HTML template is executed.) See also the {@link guide/scope Scopes guide} for\n     * an in-depth introduction and usage examples.\n     *\n     *\n     * ## Inheritance\n     * A scope can inherit from a parent scope, as in this example:\n     * ```js\n         var parent = $rootScope;\n         var child = parent.$new();\n\n         parent.salutation = \"Hello\";\n         expect(child.salutation).toEqual('Hello');\n\n         child.salutation = \"Welcome\";\n         expect(child.salutation).toEqual('Welcome');\n         expect(parent.salutation).toEqual('Hello');\n     * ```\n     *\n     * When interacting with `Scope` in tests, additional helper methods are available on the\n     * instances of `Scope` type. See {@link ngMock.$rootScope.Scope ngMock Scope} for additional\n     * details.\n     *\n     *\n     * @param {Object.<string, function()>=} providers Map of service factory which need to be\n     *                                       provided for the current scope. Defaults to {@link ng}.\n     * @param {Object.<string, *>=} instanceCache Provides pre-instantiated services which should\n     *                              append/override services provided by `providers`. This is handy\n     *                              when unit-testing and having the need to override a default\n     *                              service.\n     * @returns {Object} Newly created scope.\n     *\n     */\n    function Scope() {\n      this.$id = nextUid();\n      this.$$phase = this.$parent = this.$$watchers =\n                     this.$$nextSibling = this.$$prevSibling =\n                     this.$$childHead = this.$$childTail = null;\n      this.$root = this;\n      this.$$destroyed = false;\n      this.$$suspended = false;\n      this.$$listeners = {};\n      this.$$listenerCount = {};\n      this.$$watchersCount = 0;\n      this.$$isolateBindings = null;\n    }\n\n    /**\n     * @ngdoc property\n     * @name $rootScope.Scope#$id\n     *\n     * @description\n     * Unique scope ID (monotonically increasing) useful for debugging.\n     */\n\n     /**\n      * @ngdoc property\n      * @name $rootScope.Scope#$parent\n      *\n      * @description\n      * Reference to the parent scope.\n      */\n\n      /**\n       * @ngdoc property\n       * @name $rootScope.Scope#$root\n       *\n       * @description\n       * Reference to the root scope.\n       */\n\n    Scope.prototype = {\n      constructor: Scope,\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$new\n       * @kind function\n       *\n       * @description\n       * Creates a new child {@link ng.$rootScope.Scope scope}.\n       *\n       * The parent scope will propagate the {@link ng.$rootScope.Scope#$digest $digest()} event.\n       * The scope can be removed from the scope hierarchy using {@link ng.$rootScope.Scope#$destroy $destroy()}.\n       *\n       * {@link ng.$rootScope.Scope#$destroy $destroy()} must be called on a scope when it is\n       * desired for the scope and its child scopes to be permanently detached from the parent and\n       * thus stop participating in model change detection and listener notification by invoking.\n       *\n       * @param {boolean} isolate If true, then the scope does not prototypically inherit from the\n       *         parent scope. The scope is isolated, as it can not see parent scope properties.\n       *         When creating widgets, it is useful for the widget to not accidentally read parent\n       *         state.\n       *\n       * @param {Scope} [parent=this] The {@link ng.$rootScope.Scope `Scope`} that will be the `$parent`\n       *                              of the newly created scope. Defaults to `this` scope if not provided.\n       *                              This is used when creating a transclude scope to correctly place it\n       *                              in the scope hierarchy while maintaining the correct prototypical\n       *                              inheritance.\n       *\n       * @returns {Object} The newly created child scope.\n       *\n       */\n      $new: function(isolate, parent) {\n        var child;\n\n        parent = parent || this;\n\n        if (isolate) {\n          child = new Scope();\n          child.$root = this.$root;\n        } else {\n          // Only create a child scope class if somebody asks for one,\n          // but cache it to allow the VM to optimize lookups.\n          if (!this.$$ChildScope) {\n            this.$$ChildScope = createChildScopeClass(this);\n          }\n          child = new this.$$ChildScope();\n        }\n        child.$parent = parent;\n        child.$$prevSibling = parent.$$childTail;\n        if (parent.$$childHead) {\n          parent.$$childTail.$$nextSibling = child;\n          parent.$$childTail = child;\n        } else {\n          parent.$$childHead = parent.$$childTail = child;\n        }\n\n        // When the new scope is not isolated or we inherit from `this`, and\n        // the parent scope is destroyed, the property `$$destroyed` is inherited\n        // prototypically. In all other cases, this property needs to be set\n        // when the parent scope is destroyed.\n        // The listener needs to be added after the parent is set\n        if (isolate || parent !== this) child.$on('$destroy', destroyChildScope);\n\n        return child;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watch\n       * @kind function\n       *\n       * @description\n       * Registers a `listener` callback to be executed whenever the `watchExpression` changes.\n       *\n       * - The `watchExpression` is called on every call to {@link ng.$rootScope.Scope#$digest\n       *   $digest()} and should return the value that will be watched. (`watchExpression` should not change\n       *   its value when executed multiple times with the same input because it may be executed multiple\n       *   times by {@link ng.$rootScope.Scope#$digest $digest()}. That is, `watchExpression` should be\n       *   [idempotent](http://en.wikipedia.org/wiki/Idempotence).)\n       * - The `listener` is called only when the value from the current `watchExpression` and the\n       *   previous call to `watchExpression` are not equal (with the exception of the initial run,\n       *   see below). Inequality is determined according to reference inequality,\n       *   [strict comparison](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators)\n       *    via the `!==` Javascript operator, unless `objectEquality == true`\n       *   (see next point)\n       * - When `objectEquality == true`, inequality of the `watchExpression` is determined\n       *   according to the {@link angular.equals} function. To save the value of the object for\n       *   later comparison, the {@link angular.copy} function is used. This therefore means that\n       *   watching complex objects will have adverse memory and performance implications.\n       * - This should not be used to watch for changes in objects that are (or contain)\n       *   [File](https://developer.mozilla.org/docs/Web/API/File) objects due to limitations with {@link angular.copy `angular.copy`}.\n       * - The watch `listener` may change the model, which may trigger other `listener`s to fire.\n       *   This is achieved by rerunning the watchers until no changes are detected. The rerun\n       *   iteration limit is 10 to prevent an infinite loop deadlock.\n       *\n       *\n       * If you want to be notified whenever {@link ng.$rootScope.Scope#$digest $digest} is called,\n       * you can register a `watchExpression` function with no `listener`. (Be prepared for\n       * multiple calls to your `watchExpression` because it will execute multiple times in a\n       * single {@link ng.$rootScope.Scope#$digest $digest} cycle if a change is detected.)\n       *\n       * After a watcher is registered with the scope, the `listener` fn is called asynchronously\n       * (via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}) to initialize the\n       * watcher. In rare cases, this is undesirable because the listener is called when the result\n       * of `watchExpression` didn't change. To detect this scenario within the `listener` fn, you\n       * can compare the `newVal` and `oldVal`. If these two values are identical (`===`) then the\n       * listener was called due to initialization.\n       *\n       *\n       *\n       * @example\n       * ```js\n           // let's assume that scope was dependency injected as the $rootScope\n           var scope = $rootScope;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n\n\n\n           // Using a function as a watchExpression\n           var food;\n           scope.foodCounter = 0;\n           expect(scope.foodCounter).toEqual(0);\n           scope.$watch(\n             // This function returns the value being watched. It is called for each turn of the $digest loop\n             function() { return food; },\n             // This is the change listener, called when the value returned from the above function changes\n             function(newValue, oldValue) {\n               if ( newValue !== oldValue ) {\n                 // Only increment the counter if the value changed\n                 scope.foodCounter = scope.foodCounter + 1;\n               }\n             }\n           );\n           // No digest has been run so the counter will be zero\n           expect(scope.foodCounter).toEqual(0);\n\n           // Run the digest but since food has not changed count will still be zero\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(0);\n\n           // Update food and run digest.  Now the counter will increment\n           food = 'cheeseburger';\n           scope.$digest();\n           expect(scope.foodCounter).toEqual(1);\n\n       * ```\n       *\n       *\n       *\n       * @param {(function()|string)} watchExpression Expression that is evaluated on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. A change in the return value triggers\n       *    a call to the `listener`.\n       *\n       *    - `string`: Evaluated as {@link guide/expression expression}\n       *    - `function(scope)`: called with current `scope` as a parameter.\n       * @param {function(newVal, oldVal, scope)} listener Callback called whenever the value\n       *    of `watchExpression` changes.\n       *\n       *    - `newVal` contains the current value of the `watchExpression`\n       *    - `oldVal` contains the previous value of the `watchExpression`\n       *    - `scope` refers to the current scope\n       * @param {boolean=} [objectEquality=false] Compare for object equality using {@link angular.equals} instead of\n       *     comparing for reference equality.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $watch: function(watchExp, listener, objectEquality, prettyPrintExpression) {\n        var get = $parse(watchExp);\n        var fn = isFunction(listener) ? listener : noop;\n\n        if (get.$$watchDelegate) {\n          return get.$$watchDelegate(this, fn, objectEquality, get, watchExp);\n        }\n        var scope = this,\n            array = scope.$$watchers,\n            watcher = {\n              fn: fn,\n              last: initWatchVal,\n              get: get,\n              exp: prettyPrintExpression || watchExp,\n              eq: !!objectEquality\n            };\n\n        lastDirtyWatch = null;\n\n        if (!array) {\n          array = scope.$$watchers = [];\n          array.$$digestWatchIndex = -1;\n        }\n        // we use unshift since we use a while loop in $digest for speed.\n        // the while loop reads in reverse order.\n        array.unshift(watcher);\n        array.$$digestWatchIndex++;\n        incrementWatchersCount(this, 1);\n\n        return function deregisterWatch() {\n          var index = arrayRemove(array, watcher);\n          if (index >= 0) {\n            incrementWatchersCount(scope, -1);\n            if (index < array.$$digestWatchIndex) {\n              array.$$digestWatchIndex--;\n            }\n          }\n          lastDirtyWatch = null;\n        };\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchGroup\n       * @kind function\n       *\n       * @description\n       * A variant of {@link ng.$rootScope.Scope#$watch $watch()} where it watches an array of `watchExpressions`.\n       * If any one expression in the collection changes the `listener` is executed.\n       *\n       * - The items in the `watchExpressions` array are observed via the standard `$watch` operation. Their return\n       *   values are examined for changes on every call to `$digest`.\n       * - The `listener` is called whenever any expression in the `watchExpressions` array changes.\n       *\n       * @param {Array.<string|Function(scope)>} watchExpressions Array of expressions that will be individually\n       * watched using {@link ng.$rootScope.Scope#$watch $watch()}\n       *\n       * @param {function(newValues, oldValues, scope)} listener Callback called whenever the return value of any\n       *    expression in `watchExpressions` changes\n       *    The `newValues` array contains the current values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`\n       *    and the `oldValues` array contains the previous values of the `watchExpressions`, with the indexes matching\n       *    those of `watchExpression`\n       *    The `scope` refers to the current scope.\n       * @returns {function()} Returns a de-registration function for all listeners.\n       */\n      $watchGroup: function(watchExpressions, listener) {\n        var oldValues = new Array(watchExpressions.length);\n        var newValues = new Array(watchExpressions.length);\n        var deregisterFns = [];\n        var self = this;\n        var changeReactionScheduled = false;\n        var firstRun = true;\n\n        if (!watchExpressions.length) {\n          // No expressions means we call the listener ASAP\n          var shouldCall = true;\n          self.$evalAsync(function() {\n            if (shouldCall) listener(newValues, newValues, self);\n          });\n          return function deregisterWatchGroup() {\n            shouldCall = false;\n          };\n        }\n\n        if (watchExpressions.length === 1) {\n          // Special case size of one\n          return this.$watch(watchExpressions[0], function watchGroupAction(value, oldValue, scope) {\n            newValues[0] = value;\n            oldValues[0] = oldValue;\n            listener(newValues, (value === oldValue) ? newValues : oldValues, scope);\n          });\n        }\n\n        forEach(watchExpressions, function(expr, i) {\n          var unwatchFn = self.$watch(expr, function watchGroupSubAction(value) {\n            newValues[i] = value;\n            if (!changeReactionScheduled) {\n              changeReactionScheduled = true;\n              self.$evalAsync(watchGroupAction);\n            }\n          });\n          deregisterFns.push(unwatchFn);\n        });\n\n        function watchGroupAction() {\n          changeReactionScheduled = false;\n\n          try {\n            if (firstRun) {\n              firstRun = false;\n              listener(newValues, newValues, self);\n            } else {\n              listener(newValues, oldValues, self);\n            }\n          } finally {\n            for (var i = 0; i < watchExpressions.length; i++) {\n              oldValues[i] = newValues[i];\n            }\n          }\n        }\n\n        return function deregisterWatchGroup() {\n          while (deregisterFns.length) {\n            deregisterFns.shift()();\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$watchCollection\n       * @kind function\n       *\n       * @description\n       * Shallow watches the properties of an object and fires whenever any of the properties change\n       * (for arrays, this implies watching the array items; for object maps, this implies watching\n       * the properties). If a change is detected, the `listener` callback is fired.\n       *\n       * - The `obj` collection is observed via standard $watch operation and is examined on every\n       *   call to $digest() to see if any items have been added, removed, or moved.\n       * - The `listener` is called whenever anything within the `obj` has changed. Examples include\n       *   adding, removing, and moving items belonging to an object or array.\n       *\n       *\n       * @example\n       * ```js\n          $scope.names = ['igor', 'matias', 'misko', 'james'];\n          $scope.dataCount = 4;\n\n          $scope.$watchCollection('names', function(newNames, oldNames) {\n            $scope.dataCount = newNames.length;\n          });\n\n          expect($scope.dataCount).toEqual(4);\n          $scope.$digest();\n\n          //still at 4 ... no changes\n          expect($scope.dataCount).toEqual(4);\n\n          $scope.names.pop();\n          $scope.$digest();\n\n          //now there's been a change\n          expect($scope.dataCount).toEqual(3);\n       * ```\n       *\n       *\n       * @param {string|function(scope)} obj Evaluated as {@link guide/expression expression}. The\n       *    expression value should evaluate to an object or an array which is observed on each\n       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. Any shallow change within the\n       *    collection will trigger a call to the `listener`.\n       *\n       * @param {function(newCollection, oldCollection, scope)} listener a callback function called\n       *    when a change is detected.\n       *    - The `newCollection` object is the newly modified data obtained from the `obj` expression\n       *    - The `oldCollection` object is a copy of the former collection data.\n       *      Due to performance considerations, the`oldCollection` value is computed only if the\n       *      `listener` function declares two or more arguments.\n       *    - The `scope` argument refers to the current scope.\n       *\n       * @returns {function()} Returns a de-registration function for this listener. When the\n       *    de-registration function is executed, the internal watch operation is terminated.\n       */\n      $watchCollection: function(obj, listener) {\n        // Mark the interceptor as\n        // ... $$pure when literal since the instance will change when any input changes\n        $watchCollectionInterceptor.$$pure = $parse(obj).literal;\n        // ... $stateful when non-literal since we must read the state of the collection\n        $watchCollectionInterceptor.$stateful = !$watchCollectionInterceptor.$$pure;\n\n        var self = this;\n        // the current value, updated on each dirty-check run\n        var newValue;\n        // a shallow copy of the newValue from the last dirty-check run,\n        // updated to match newValue during dirty-check run\n        var oldValue;\n        // a shallow copy of the newValue from when the last change happened\n        var veryOldValue;\n        // only track veryOldValue if the listener is asking for it\n        var trackVeryOldValue = (listener.length > 1);\n        var changeDetected = 0;\n        var changeDetector = $parse(obj, $watchCollectionInterceptor);\n        var internalArray = [];\n        var internalObject = {};\n        var initRun = true;\n        var oldLength = 0;\n\n        function $watchCollectionInterceptor(_value) {\n          newValue = _value;\n          var newLength, key, bothNaN, newItem, oldItem;\n\n          // If the new value is undefined, then return undefined as the watch may be a one-time watch\n          if (isUndefined(newValue)) return;\n\n          if (!isObject(newValue)) { // if primitive\n            if (oldValue !== newValue) {\n              oldValue = newValue;\n              changeDetected++;\n            }\n          } else if (isArrayLike(newValue)) {\n            if (oldValue !== internalArray) {\n              // we are transitioning from something which was not an array into array.\n              oldValue = internalArray;\n              oldLength = oldValue.length = 0;\n              changeDetected++;\n            }\n\n            newLength = newValue.length;\n\n            if (oldLength !== newLength) {\n              // if lengths do not match we need to trigger change notification\n              changeDetected++;\n              oldValue.length = oldLength = newLength;\n            }\n            // copy the items to oldValue and look for changes.\n            for (var i = 0; i < newLength; i++) {\n              oldItem = oldValue[i];\n              newItem = newValue[i];\n\n              // eslint-disable-next-line no-self-compare\n              bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n              if (!bothNaN && (oldItem !== newItem)) {\n                changeDetected++;\n                oldValue[i] = newItem;\n              }\n            }\n          } else {\n            if (oldValue !== internalObject) {\n              // we are transitioning from something which was not an object into object.\n              oldValue = internalObject = {};\n              oldLength = 0;\n              changeDetected++;\n            }\n            // copy the items to oldValue and look for changes.\n            newLength = 0;\n            for (key in newValue) {\n              if (hasOwnProperty.call(newValue, key)) {\n                newLength++;\n                newItem = newValue[key];\n                oldItem = oldValue[key];\n\n                if (key in oldValue) {\n                  // eslint-disable-next-line no-self-compare\n                  bothNaN = (oldItem !== oldItem) && (newItem !== newItem);\n                  if (!bothNaN && (oldItem !== newItem)) {\n                    changeDetected++;\n                    oldValue[key] = newItem;\n                  }\n                } else {\n                  oldLength++;\n                  oldValue[key] = newItem;\n                  changeDetected++;\n                }\n              }\n            }\n            if (oldLength > newLength) {\n              // we used to have more keys, need to find them and destroy them.\n              changeDetected++;\n              for (key in oldValue) {\n                if (!hasOwnProperty.call(newValue, key)) {\n                  oldLength--;\n                  delete oldValue[key];\n                }\n              }\n            }\n          }\n          return changeDetected;\n        }\n\n        function $watchCollectionAction() {\n          if (initRun) {\n            initRun = false;\n            listener(newValue, newValue, self);\n          } else {\n            listener(newValue, veryOldValue, self);\n          }\n\n          // make a copy for the next time a collection is changed\n          if (trackVeryOldValue) {\n            if (!isObject(newValue)) {\n              //primitive\n              veryOldValue = newValue;\n            } else if (isArrayLike(newValue)) {\n              veryOldValue = new Array(newValue.length);\n              for (var i = 0; i < newValue.length; i++) {\n                veryOldValue[i] = newValue[i];\n              }\n            } else { // if object\n              veryOldValue = {};\n              for (var key in newValue) {\n                if (hasOwnProperty.call(newValue, key)) {\n                  veryOldValue[key] = newValue[key];\n                }\n              }\n            }\n          }\n        }\n\n        return this.$watch(changeDetector, $watchCollectionAction);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$digest\n       * @kind function\n       *\n       * @description\n       * Processes all of the {@link ng.$rootScope.Scope#$watch watchers} of the current scope and\n       * its children. Because a {@link ng.$rootScope.Scope#$watch watcher}'s listener can change\n       * the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#$watch watchers}\n       * until no more listeners are firing. This means that it is possible to get into an infinite\n       * loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of\n       * iterations exceeds 10.\n       *\n       * Usually, you don't call `$digest()` directly in\n       * {@link ng.directive:ngController controllers} or in\n       * {@link ng.$compileProvider#directive directives}.\n       * Instead, you should call {@link ng.$rootScope.Scope#$apply $apply()} (typically from within\n       * a {@link ng.$compileProvider#directive directive}), which will force a `$digest()`.\n       *\n       * If you want to be notified whenever `$digest()` is called,\n       * you can register a `watchExpression` function with\n       * {@link ng.$rootScope.Scope#$watch $watch()} with no `listener`.\n       *\n       * In unit tests, you may need to call `$digest()` to simulate the scope life cycle.\n       *\n       * @example\n       * ```js\n           var scope = ...;\n           scope.name = 'misko';\n           scope.counter = 0;\n\n           expect(scope.counter).toEqual(0);\n           scope.$watch('name', function(newValue, oldValue) {\n             scope.counter = scope.counter + 1;\n           });\n           expect(scope.counter).toEqual(0);\n\n           scope.$digest();\n           // the listener is always called during the first $digest loop after it was registered\n           expect(scope.counter).toEqual(1);\n\n           scope.$digest();\n           // but now it will not be called unless the value changes\n           expect(scope.counter).toEqual(1);\n\n           scope.name = 'adam';\n           scope.$digest();\n           expect(scope.counter).toEqual(2);\n       * ```\n       *\n       */\n      $digest: function() {\n        var watch, value, last, fn, get,\n            watchers,\n            dirty, ttl = TTL,\n            next, current, target = asyncQueue.length ? $rootScope : this,\n            watchLog = [],\n            logIdx, asyncTask;\n\n        beginPhase('$digest');\n        // Check for changes to browser url that happened in sync before the call to $digest\n        $browser.$$checkUrlChange();\n\n        if (this === $rootScope && applyAsyncId !== null) {\n          // If this is the root scope, and $applyAsync has scheduled a deferred $apply(), then\n          // cancel the scheduled $apply and flush the queue of expressions to be evaluated.\n          $browser.defer.cancel(applyAsyncId);\n          flushApplyAsync();\n        }\n\n        lastDirtyWatch = null;\n\n        do { // \"while dirty\" loop\n          dirty = false;\n          current = target;\n\n          // It's safe for asyncQueuePosition to be a local variable here because this loop can't\n          // be reentered recursively. Calling $digest from a function passed to $evalAsync would\n          // lead to a '$digest already in progress' error.\n          for (var asyncQueuePosition = 0; asyncQueuePosition < asyncQueue.length; asyncQueuePosition++) {\n            try {\n              asyncTask = asyncQueue[asyncQueuePosition];\n              fn = asyncTask.fn;\n              fn(asyncTask.scope, asyncTask.locals);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n            lastDirtyWatch = null;\n          }\n          asyncQueue.length = 0;\n\n          traverseScopesLoop:\n          do { // \"traverse the scopes\" loop\n            if ((watchers = !current.$$suspended && current.$$watchers)) {\n              // process our watches\n              watchers.$$digestWatchIndex = watchers.length;\n              while (watchers.$$digestWatchIndex--) {\n                try {\n                  watch = watchers[watchers.$$digestWatchIndex];\n                  // Most common watches are on primitives, in which case we can short\n                  // circuit it with === operator, only when === fails do we use .equals\n                  if (watch) {\n                    get = watch.get;\n                    if ((value = get(current)) !== (last = watch.last) &&\n                        !(watch.eq\n                            ? equals(value, last)\n                            : (isNumberNaN(value) && isNumberNaN(last)))) {\n                      dirty = true;\n                      lastDirtyWatch = watch;\n                      watch.last = watch.eq ? copy(value, null) : value;\n                      fn = watch.fn;\n                      fn(value, ((last === initWatchVal) ? value : last), current);\n                      if (ttl < 5) {\n                        logIdx = 4 - ttl;\n                        if (!watchLog[logIdx]) watchLog[logIdx] = [];\n                        watchLog[logIdx].push({\n                          msg: isFunction(watch.exp) ? 'fn: ' + (watch.exp.name || watch.exp.toString()) : watch.exp,\n                          newVal: value,\n                          oldVal: last\n                        });\n                      }\n                    } else if (watch === lastDirtyWatch) {\n                      // If the most recently dirty watcher is now clean, short circuit since the remaining watchers\n                      // have already been tested.\n                      dirty = false;\n                      break traverseScopesLoop;\n                    }\n                  }\n                } catch (e) {\n                  $exceptionHandler(e);\n                }\n              }\n            }\n\n            // Insanity Warning: scope depth-first traversal\n            // yes, this code is a bit crazy, but it works and we have tests to prove it!\n            // this piece should be kept in sync with the traversal in $broadcast\n            // (though it differs due to having the extra check for $$suspended and does not\n            // check $$listenerCount)\n            if (!(next = ((!current.$$suspended && current.$$watchersCount && current.$$childHead) ||\n                (current !== target && current.$$nextSibling)))) {\n              while (current !== target && !(next = current.$$nextSibling)) {\n                current = current.$parent;\n              }\n            }\n          } while ((current = next));\n\n          // `break traverseScopesLoop;` takes us to here\n\n          if ((dirty || asyncQueue.length) && !(ttl--)) {\n            clearPhase();\n            throw $rootScopeMinErr('infdig',\n                '{0} $digest() iterations reached. Aborting!\\n' +\n                'Watchers fired in the last 5 iterations: {1}',\n                TTL, watchLog);\n          }\n\n        } while (dirty || asyncQueue.length);\n\n        clearPhase();\n\n        // postDigestQueuePosition isn't local here because this loop can be reentered recursively.\n        while (postDigestQueuePosition < postDigestQueue.length) {\n          try {\n            postDigestQueue[postDigestQueuePosition++]();\n          } catch (e) {\n            $exceptionHandler(e);\n          }\n        }\n        postDigestQueue.length = postDigestQueuePosition = 0;\n\n        // Check for changes to browser url that happened during the $digest\n        // (for which no event is fired; e.g. via `history.pushState()`)\n        $browser.$$checkUrlChange();\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$suspend\n       * @kind function\n       *\n       * @description\n       * Suspend watchers of this scope subtree so that they will not be invoked during digest.\n       *\n       * This can be used to optimize your application when you know that running those watchers\n       * is redundant.\n       *\n       * **Warning**\n       *\n       * Suspending scopes from the digest cycle can have unwanted and difficult to debug results.\n       * Only use this approach if you are confident that you know what you are doing and have\n       * ample tests to ensure that bindings get updated as you expect.\n       *\n       * Some of the things to consider are:\n       *\n       * * Any external event on a directive/component will not trigger a digest while the hosting\n       *   scope is suspended - even if the event handler calls `$apply()` or `$rootScope.$digest()`.\n       * * Transcluded content exists on a scope that inherits from outside a directive but exists\n       *   as a child of the directive's containing scope. If the containing scope is suspended the\n       *   transcluded scope will also be suspended, even if the scope from which the transcluded\n       *   scope inherits is not suspended.\n       * * Multiple directives trying to manage the suspended status of a scope can confuse each other:\n       *    * A call to `$suspend()` on an already suspended scope is a no-op.\n       *    * A call to `$resume()` on a non-suspended scope is a no-op.\n       *    * If two directives suspend a scope, then one of them resumes the scope, the scope will no\n       *      longer be suspended. This could result in the other directive believing a scope to be\n       *      suspended when it is not.\n       * * If a parent scope is suspended then all its descendants will be also excluded from future\n       *   digests whether or not they have been suspended themselves. Note that this also applies to\n       *   isolate child scopes.\n       * * Calling `$digest()` directly on a descendant of a suspended scope will still run the watchers\n       *   for that scope and its descendants. When digesting we only check whether the current scope is\n       *   locally suspended, rather than checking whether it has a suspended ancestor.\n       * * Calling `$resume()` on a scope that has a suspended ancestor will not cause the scope to be\n       *   included in future digests until all its ancestors have been resumed.\n       * * Resolved promises, e.g. from explicit `$q` deferreds and `$http` calls, trigger `$apply()`\n       *   against the `$rootScope` and so will still trigger a global digest even if the promise was\n       *   initiated by a component that lives on a suspended scope.\n       */\n      $suspend: function() {\n        this.$$suspended = true;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$isSuspended\n       * @kind function\n       *\n       * @description\n       * Call this method to determine if this scope has been explicitly suspended. It will not\n       * tell you whether an ancestor has been suspended.\n       * To determine if this scope will be excluded from a digest triggered at the $rootScope,\n       * for example, you must check all its ancestors:\n       *\n       * ```\n       * function isExcludedFromDigest(scope) {\n       *   while(scope) {\n       *     if (scope.$isSuspended()) return true;\n       *     scope = scope.$parent;\n       *   }\n       *   return false;\n       * ```\n       *\n       * Be aware that a scope may not be included in digests if it has a suspended ancestor,\n       * even if `$isSuspended()` returns false.\n       *\n       * @returns true if the current scope has been suspended.\n       */\n      $isSuspended: function() {\n        return this.$$suspended;\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$resume\n       * @kind function\n       *\n       * @description\n       * Resume watchers of this scope subtree in case it was suspended.\n       *\n       * See {@link $rootScope.Scope#$suspend} for information about the dangers of using this approach.\n       */\n      $resume: function() {\n        this.$$suspended = false;\n      },\n\n      /**\n       * @ngdoc event\n       * @name $rootScope.Scope#$destroy\n       * @eventType broadcast on scope being destroyed\n       *\n       * @description\n       * Broadcasted when a scope and its children are being destroyed.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$destroy\n       * @kind function\n       *\n       * @description\n       * Removes the current scope (and all of its children) from the parent scope. Removal implies\n       * that calls to {@link ng.$rootScope.Scope#$digest $digest()} will no longer\n       * propagate to the current scope and its children. Removal also implies that the current\n       * scope is eligible for garbage collection.\n       *\n       * The `$destroy()` is usually used by directives such as\n       * {@link ng.directive:ngRepeat ngRepeat} for managing the\n       * unrolling of the loop.\n       *\n       * Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope.\n       * Application code can register a `$destroy` event handler that will give it a chance to\n       * perform any necessary cleanup.\n       *\n       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to\n       * clean up DOM bindings before an element is removed from the DOM.\n       */\n      $destroy: function() {\n        // We can't destroy a scope that has been already destroyed.\n        if (this.$$destroyed) return;\n        var parent = this.$parent;\n\n        this.$broadcast('$destroy');\n        this.$$destroyed = true;\n\n        if (this === $rootScope) {\n          //Remove handlers attached to window when $rootScope is removed\n          $browser.$$applicationDestroyed();\n        }\n\n        incrementWatchersCount(this, -this.$$watchersCount);\n        for (var eventName in this.$$listenerCount) {\n          decrementListenerCount(this, this.$$listenerCount[eventName], eventName);\n        }\n\n        // sever all the references to parent scopes (after this cleanup, the current scope should\n        // not be retained by any of our references and should be eligible for garbage collection)\n        if (parent && parent.$$childHead === this) parent.$$childHead = this.$$nextSibling;\n        if (parent && parent.$$childTail === this) parent.$$childTail = this.$$prevSibling;\n        if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling;\n        if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling;\n\n        // Disable listeners, watchers and apply/digest methods\n        this.$destroy = this.$digest = this.$apply = this.$evalAsync = this.$applyAsync = noop;\n        this.$on = this.$watch = this.$watchGroup = function() { return noop; };\n        this.$$listeners = {};\n\n        // Disconnect the next sibling to prevent `cleanUpScope` destroying those too\n        this.$$nextSibling = null;\n        cleanUpScope(this);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$eval\n       * @kind function\n       *\n       * @description\n       * Executes the `expression` on the current scope and returns the result. Any exceptions in\n       * the expression are propagated (uncaught). This is useful when evaluating AngularJS\n       * expressions.\n       *\n       * @example\n       * ```js\n           var scope = ng.$rootScope.Scope();\n           scope.a = 1;\n           scope.b = 2;\n\n           expect(scope.$eval('a+b')).toEqual(3);\n           expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3);\n       * ```\n       *\n       * @param {(string|function())=} expression An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in  {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       * @returns {*} The result of evaluating the expression.\n       */\n      $eval: function(expr, locals) {\n        return $parse(expr)(this, locals);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$evalAsync\n       * @kind function\n       *\n       * @description\n       * Executes the expression on the current scope at a later point in time.\n       *\n       * The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only\n       * that:\n       *\n       *   - it will execute after the function that scheduled the evaluation (preferably before DOM\n       *     rendering).\n       *   - at least one {@link ng.$rootScope.Scope#$digest $digest cycle} will be performed after\n       *     `expression` execution.\n       *\n       * Any exceptions from the execution of the expression are forwarded to the\n       * {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * __Note:__ if this function is called outside of a `$digest` cycle, a new `$digest` cycle\n       * will be scheduled. However, it is encouraged to always call code that changes the model\n       * from within an `$apply` call. That includes code evaluated via `$evalAsync`.\n       *\n       * @param {(string|function())=} expression An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with the current `scope` parameter.\n       *\n       * @param {(object)=} locals Local variables object, useful for overriding values in scope.\n       */\n      $evalAsync: function(expr, locals) {\n        // if we are outside of an $digest loop and this is the first time we are scheduling async\n        // task also schedule async auto-flush\n        if (!$rootScope.$$phase && !asyncQueue.length) {\n          $browser.defer(function() {\n            if (asyncQueue.length) {\n              $rootScope.$digest();\n            }\n          }, null, '$evalAsync');\n        }\n\n        asyncQueue.push({scope: this, fn: $parse(expr), locals: locals});\n      },\n\n      $$postDigest: function(fn) {\n        postDigestQueue.push(fn);\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$apply\n       * @kind function\n       *\n       * @description\n       * `$apply()` is used to execute an expression in AngularJS from outside of the AngularJS\n       * framework. (For example from browser DOM events, setTimeout, XHR or third party libraries).\n       * Because we are calling into the AngularJS framework we need to perform proper scope life\n       * cycle of {@link ng.$exceptionHandler exception handling},\n       * {@link ng.$rootScope.Scope#$digest executing watches}.\n       *\n       * **Life cycle: Pseudo-Code of `$apply()`**\n       *\n       * ```js\n           function $apply(expr) {\n             try {\n               return $eval(expr);\n             } catch (e) {\n               $exceptionHandler(e);\n             } finally {\n               $root.$digest();\n             }\n           }\n       * ```\n       *\n       *\n       * Scope's `$apply()` method transitions through the following stages:\n       *\n       * 1. The {@link guide/expression expression} is executed using the\n       *    {@link ng.$rootScope.Scope#$eval $eval()} method.\n       * 2. Any exceptions from the execution of the expression are forwarded to the\n       *    {@link ng.$exceptionHandler $exceptionHandler} service.\n       * 3. The {@link ng.$rootScope.Scope#$watch watch} listeners are fired immediately after the\n       *    expression was executed using the {@link ng.$rootScope.Scope#$digest $digest()} method.\n       *\n       *\n       * @param {(string|function())=} exp An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       *\n       * @returns {*} The result of evaluating the expression.\n       */\n      $apply: function(expr) {\n        try {\n          beginPhase('$apply');\n          try {\n            return this.$eval(expr);\n          } finally {\n            clearPhase();\n          }\n        } catch (e) {\n          $exceptionHandler(e);\n        } finally {\n          try {\n            $rootScope.$digest();\n          } catch (e) {\n            $exceptionHandler(e);\n            // eslint-disable-next-line no-unsafe-finally\n            throw e;\n          }\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$applyAsync\n       * @kind function\n       *\n       * @description\n       * Schedule the invocation of $apply to occur at a later time. The actual time difference\n       * varies across browsers, but is typically around ~10 milliseconds.\n       *\n       * This can be used to queue up multiple expressions which need to be evaluated in the same\n       * digest.\n       *\n       * @param {(string|function())=} exp An AngularJS expression to be executed.\n       *\n       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.\n       *    - `function(scope)`: execute the function with current `scope` parameter.\n       */\n      $applyAsync: function(expr) {\n        var scope = this;\n        if (expr) {\n          applyAsyncQueue.push($applyAsyncExpression);\n        }\n        expr = $parse(expr);\n        scheduleApplyAsync();\n\n        function $applyAsyncExpression() {\n          scope.$eval(expr);\n        }\n      },\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$on\n       * @kind function\n       *\n       * @description\n       * Listens on events of a given type. See {@link ng.$rootScope.Scope#$emit $emit} for\n       * discussion of event life cycle.\n       *\n       * The event listener function format is: `function(event, args...)`. The `event` object\n       * passed into the listener has the following attributes:\n       *\n       *   - `targetScope` - `{Scope}`: the scope on which the event was `$emit`-ed or\n       *     `$broadcast`-ed.\n       *   - `currentScope` - `{Scope}`: the scope that is currently handling the event. Once the\n       *     event propagates through the scope hierarchy, this property is set to null.\n       *   - `name` - `{string}`: name of the event.\n       *   - `stopPropagation` - `{function=}`: calling `stopPropagation` function will cancel\n       *     further event propagation (available only for events that were `$emit`-ed).\n       *   - `preventDefault` - `{function}`: calling `preventDefault` sets `defaultPrevented` flag\n       *     to true.\n       *   - `defaultPrevented` - `{boolean}`: true if `preventDefault` was called.\n       *\n       * @param {string} name Event name to listen on.\n       * @param {function(event, ...args)} listener Function to call when the event is emitted.\n       * @returns {function()} Returns a deregistration function for this listener.\n       */\n      $on: function(name, listener) {\n        var namedListeners = this.$$listeners[name];\n        if (!namedListeners) {\n          this.$$listeners[name] = namedListeners = [];\n        }\n        namedListeners.push(listener);\n\n        var current = this;\n        do {\n          if (!current.$$listenerCount[name]) {\n            current.$$listenerCount[name] = 0;\n          }\n          current.$$listenerCount[name]++;\n        } while ((current = current.$parent));\n\n        var self = this;\n        return function() {\n          var indexOfListener = namedListeners.indexOf(listener);\n          if (indexOfListener !== -1) {\n            // Use delete in the hope of the browser deallocating the memory for the array entry,\n            // while not shifting the array indexes of other listeners.\n            // See issue https://github.com/angular/angular.js/issues/16135\n            delete namedListeners[indexOfListener];\n            decrementListenerCount(self, 1, name);\n          }\n        };\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$emit\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` upwards through the scope hierarchy notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$emit` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event traverses upwards toward the root scope and calls all\n       * registered listeners along the way. The event will stop propagating if one of the listeners\n       * cancels it.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to emit.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object (see {@link ng.$rootScope.Scope#$on}).\n       */\n      $emit: function(name, args) {\n        var empty = [],\n            namedListeners,\n            scope = this,\n            stopPropagation = false,\n            event = {\n              name: name,\n              targetScope: scope,\n              stopPropagation: function() {stopPropagation = true;},\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            },\n            listenerArgs = concat([event], arguments, 1),\n            i, length;\n\n        do {\n          namedListeners = scope.$$listeners[name] || empty;\n          event.currentScope = scope;\n          for (i = 0, length = namedListeners.length; i < length; i++) {\n\n            // if listeners were deregistered, defragment the array\n            if (!namedListeners[i]) {\n              namedListeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n            try {\n              //allow all listeners attached to the current scope to run\n              namedListeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n          //if any listener on the current scope stops propagation, prevent bubbling\n          if (stopPropagation) {\n            break;\n          }\n          //traverse upwards\n          scope = scope.$parent;\n        } while (scope);\n\n        event.currentScope = null;\n\n        return event;\n      },\n\n\n      /**\n       * @ngdoc method\n       * @name $rootScope.Scope#$broadcast\n       * @kind function\n       *\n       * @description\n       * Dispatches an event `name` downwards to all child scopes (and their children) notifying the\n       * registered {@link ng.$rootScope.Scope#$on} listeners.\n       *\n       * The event life cycle starts at the scope on which `$broadcast` was called. All\n       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get\n       * notified. Afterwards, the event propagates to all direct and indirect scopes of the current\n       * scope and calls all registered listeners along the way. The event cannot be canceled.\n       *\n       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed\n       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.\n       *\n       * @param {string} name Event name to broadcast.\n       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.\n       * @return {Object} Event object, see {@link ng.$rootScope.Scope#$on}\n       */\n      $broadcast: function(name, args) {\n        var target = this,\n            current = target,\n            next = target,\n            event = {\n              name: name,\n              targetScope: target,\n              preventDefault: function() {\n                event.defaultPrevented = true;\n              },\n              defaultPrevented: false\n            };\n\n        if (!target.$$listenerCount[name]) return event;\n\n        var listenerArgs = concat([event], arguments, 1),\n            listeners, i, length;\n\n        //down while you can, then up and next sibling or up and next sibling until back at root\n        while ((current = next)) {\n          event.currentScope = current;\n          listeners = current.$$listeners[name] || [];\n          for (i = 0, length = listeners.length; i < length; i++) {\n            // if listeners were deregistered, defragment the array\n            if (!listeners[i]) {\n              listeners.splice(i, 1);\n              i--;\n              length--;\n              continue;\n            }\n\n            try {\n              listeners[i].apply(null, listenerArgs);\n            } catch (e) {\n              $exceptionHandler(e);\n            }\n          }\n\n          // Insanity Warning: scope depth-first traversal\n          // yes, this code is a bit crazy, but it works and we have tests to prove it!\n          // this piece should be kept in sync with the traversal in $digest\n          // (though it differs due to having the extra check for $$listenerCount and\n          // does not check $$suspended)\n          if (!(next = ((current.$$listenerCount[name] && current.$$childHead) ||\n              (current !== target && current.$$nextSibling)))) {\n            while (current !== target && !(next = current.$$nextSibling)) {\n              current = current.$parent;\n            }\n          }\n        }\n\n        event.currentScope = null;\n        return event;\n      }\n    };\n\n    var $rootScope = new Scope();\n\n    //The internal queues. Expose them on the $rootScope for debugging/testing purposes.\n    var asyncQueue = $rootScope.$$asyncQueue = [];\n    var postDigestQueue = $rootScope.$$postDigestQueue = [];\n    var applyAsyncQueue = $rootScope.$$applyAsyncQueue = [];\n\n    var postDigestQueuePosition = 0;\n\n    return $rootScope;\n\n\n    function beginPhase(phase) {\n      if ($rootScope.$$phase) {\n        throw $rootScopeMinErr('inprog', '{0} already in progress', $rootScope.$$phase);\n      }\n\n      $rootScope.$$phase = phase;\n    }\n\n    function clearPhase() {\n      $rootScope.$$phase = null;\n    }\n\n    function incrementWatchersCount(current, count) {\n      do {\n        current.$$watchersCount += count;\n      } while ((current = current.$parent));\n    }\n\n    function decrementListenerCount(current, count, name) {\n      do {\n        current.$$listenerCount[name] -= count;\n\n        if (current.$$listenerCount[name] === 0) {\n          delete current.$$listenerCount[name];\n        }\n      } while ((current = current.$parent));\n    }\n\n    /**\n     * function used as an initial value for watchers.\n     * because it's unique we can easily tell it apart from other values\n     */\n    function initWatchVal() {}\n\n    function flushApplyAsync() {\n      while (applyAsyncQueue.length) {\n        try {\n          applyAsyncQueue.shift()();\n        } catch (e) {\n          $exceptionHandler(e);\n        }\n      }\n      applyAsyncId = null;\n    }\n\n    function scheduleApplyAsync() {\n      if (applyAsyncId === null) {\n        applyAsyncId = $browser.defer(function() {\n          $rootScope.$apply(flushApplyAsync);\n        }, null, '$applyAsync');\n      }\n    }\n  }];\n}\n\n/**\n * @ngdoc service\n * @name $rootElement\n *\n * @description\n * The root element of AngularJS application. This is either the element where {@link\n * ng.directive:ngApp ngApp} was declared or the element passed into\n * {@link angular.bootstrap}. The element represents the root element of application. It is also the\n * location where the application's {@link auto.$injector $injector} service gets\n * published, and can be retrieved using `$rootElement.injector()`.\n */\n\n\n// the implementation is in angular.bootstrap\n\n/**\n * @this\n * @description\n * Private service to sanitize uris for links and images. Used by $compile and $sanitize.\n */\nfunction $$SanitizeUriProvider() {\n\n  var aHrefSanitizationTrustedUrlList = /^\\s*(https?|s?ftp|mailto|tel|file):/,\n    imgSrcSanitizationTrustedUrlList = /^\\s*((https?|ftp|file|blob):|data:image\\/)/;\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for determining trusted safe\n   * urls during a[href] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via HTML anchor links.\n   *\n   * Any url due to be assigned to an `a[href]` attribute via interpolation is marked as requiring\n   * the $sce.URL security context. When interpolation occurs a call is made to `$sce.trustAsUrl(url)`\n   * which in turn may call `$$sanitizeUri(url, isMedia)` to sanitize the potentially malicious URL.\n   *\n   * If the URL matches the `aHrefSanitizationTrustedUrlList` regular expression, it is returned unchanged.\n   *\n   * If there is no match the URL is returned prefixed with `'unsafe:'` to ensure that when it is written\n   * to the DOM it is inactive and potentially malicious code will not be executed.\n   *\n   * @param {RegExp=} regexp New regexp to trust urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.aHrefSanitizationTrustedUrlList = function(regexp) {\n    if (isDefined(regexp)) {\n      aHrefSanitizationTrustedUrlList = regexp;\n      return this;\n    }\n    return aHrefSanitizationTrustedUrlList;\n  };\n\n\n  /**\n   * @description\n   * Retrieves or overrides the default regular expression that is used for determining trusted safe\n   * urls during img[src] sanitization.\n   *\n   * The sanitization is a security measure aimed at prevent XSS attacks via HTML image src links.\n   *\n   * Any URL due to be assigned to an `img[src]` attribute via interpolation is marked as requiring\n   * the $sce.MEDIA_URL security context. When interpolation occurs a call is made to\n   * `$sce.trustAsMediaUrl(url)` which in turn may call `$$sanitizeUri(url, isMedia)` to sanitize\n   * the potentially malicious URL.\n   *\n   * If the URL matches the `imgSrcSanitizationTrustedUrlList` regular expression, it is returned\n   * unchanged.\n   *\n   * If there is no match the URL is returned prefixed with `'unsafe:'` to ensure that when it is written\n   * to the DOM it is inactive and potentially malicious code will not be executed.\n   *\n   * @param {RegExp=} regexp New regexp to trust urls with.\n   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for\n   *    chaining otherwise.\n   */\n  this.imgSrcSanitizationTrustedUrlList = function(regexp) {\n    if (isDefined(regexp)) {\n      imgSrcSanitizationTrustedUrlList = regexp;\n      return this;\n    }\n    return imgSrcSanitizationTrustedUrlList;\n  };\n\n  this.$get = function() {\n    return function sanitizeUri(uri, isMediaUrl) {\n      // if (!uri) return uri;\n      var regex = isMediaUrl ? imgSrcSanitizationTrustedUrlList : aHrefSanitizationTrustedUrlList;\n      var normalizedVal = urlResolve(uri && uri.trim()).href;\n      if (normalizedVal !== '' && !normalizedVal.match(regex)) {\n        return 'unsafe:' + normalizedVal;\n      }\n      return uri;\n    };\n  };\n}\n\n/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n *     Any commits to this file should be reviewed with security in mind.  *\n *   Changes to this file can potentially create security vulnerabilities. *\n *          An approval from 2 Core members with history of modifying      *\n *                         this file is required.                          *\n *                                                                         *\n *  Does the change somehow allow for arbitrary javascript to be executed? *\n *    Or allows for someone to change the prototype of built-in objects?   *\n *     Or gives undesired access to variables likes document or window?    *\n * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n\n/* exported $SceProvider, $SceDelegateProvider */\n\nvar $sceMinErr = minErr('$sce');\n\nvar SCE_CONTEXTS = {\n  // HTML is used when there's HTML rendered (e.g. ng-bind-html, iframe srcdoc binding).\n  HTML: 'html',\n\n  // Style statements or stylesheets. Currently unused in AngularJS.\n  CSS: 'css',\n\n  // An URL used in a context where it refers to the source of media, which are not expected to be run\n  // as scripts, such as an image, audio, video, etc.\n  MEDIA_URL: 'mediaUrl',\n\n  // An URL used in a context where it does not refer to a resource that loads code.\n  // A value that can be trusted as a URL can also trusted as a MEDIA_URL.\n  URL: 'url',\n\n  // RESOURCE_URL is a subtype of URL used where the referred-to resource could be interpreted as\n  // code. (e.g. ng-include, script src binding, templateUrl)\n  // A value that can be trusted as a RESOURCE_URL, can also trusted as a URL and a MEDIA_URL.\n  RESOURCE_URL: 'resourceUrl',\n\n  // Script. Currently unused in AngularJS.\n  JS: 'js'\n};\n\n// Helper functions follow.\n\nvar UNDERSCORE_LOWERCASE_REGEXP = /_([a-z])/g;\n\nfunction snakeToCamel(name) {\n  return name\n    .replace(UNDERSCORE_LOWERCASE_REGEXP, fnCamelCaseReplace);\n}\n\nfunction adjustMatcher(matcher) {\n  if (matcher === 'self') {\n    return matcher;\n  } else if (isString(matcher)) {\n    // Strings match exactly except for 2 wildcards - '*' and '**'.\n    // '*' matches any character except those from the set ':/.?&'.\n    // '**' matches any character (like .* in a RegExp).\n    // More than 2 *'s raises an error as it's ill defined.\n    if (matcher.indexOf('***') > -1) {\n      throw $sceMinErr('iwcard',\n          'Illegal sequence *** in string matcher.  String: {0}', matcher);\n    }\n    matcher = escapeForRegexp(matcher).\n                  replace(/\\\\\\*\\\\\\*/g, '.*').\n                  replace(/\\\\\\*/g, '[^:/.?&;]*');\n    return new RegExp('^' + matcher + '$');\n  } else if (isRegExp(matcher)) {\n    // The only other type of matcher allowed is a Regexp.\n    // Match entire URL / disallow partial matches.\n    // Flags are reset (i.e. no global, ignoreCase or multiline)\n    return new RegExp('^' + matcher.source + '$');\n  } else {\n    throw $sceMinErr('imatcher',\n        'Matchers may only be \"self\", string patterns or RegExp objects');\n  }\n}\n\n\nfunction adjustMatchers(matchers) {\n  var adjustedMatchers = [];\n  if (isDefined(matchers)) {\n    forEach(matchers, function(matcher) {\n      adjustedMatchers.push(adjustMatcher(matcher));\n    });\n  }\n  return adjustedMatchers;\n}\n\n\n/**\n * @ngdoc service\n * @name $sceDelegate\n * @kind function\n *\n * @description\n *\n * `$sceDelegate` is a service that is used by the `$sce` service to provide {@link ng.$sce Strict\n * Contextual Escaping (SCE)} services to AngularJS.\n *\n * For an overview of this service and the functionnality it provides in AngularJS, see the main\n * page for {@link ng.$sce SCE}. The current page is targeted for developers who need to alter how\n * SCE works in their application, which shouldn't be needed in most cases.\n *\n * <div class=\"alert alert-danger\">\n * AngularJS strongly relies on contextual escaping for the security of bindings: disabling or\n * modifying this might cause cross site scripting (XSS) vulnerabilities. For libraries owners,\n * changes to this service will also influence users, so be extra careful and document your changes.\n * </div>\n *\n * Typically, you would configure or override the {@link ng.$sceDelegate $sceDelegate} instead of\n * the `$sce` service to customize the way Strict Contextual Escaping works in AngularJS.  This is\n * because, while the `$sce` provides numerous shorthand methods, etc., you really only need to\n * override 3 core functions (`trustAs`, `getTrusted` and `valueOf`) to replace the way things\n * work because `$sce` delegates to `$sceDelegate` for these operations.\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} to configure this service.\n *\n * The default instance of `$sceDelegate` should work out of the box with little pain.  While you\n * can override it completely to change the behavior of `$sce`, the common case would\n * involve configuring the {@link ng.$sceDelegateProvider $sceDelegateProvider} instead by setting\n * your own trusted and banned resource lists for trusting URLs used for loading AngularJS resources\n * such as templates.  Refer {@link ng.$sceDelegateProvider#trustedResourceUrlList\n * $sceDelegateProvider.trustedResourceUrlList} and {@link\n * ng.$sceDelegateProvider#bannedResourceUrlList $sceDelegateProvider.bannedResourceUrlList}\n */\n\n/**\n * @ngdoc provider\n * @name $sceDelegateProvider\n * @this\n *\n * @description\n *\n * The `$sceDelegateProvider` provider allows developers to configure the {@link ng.$sceDelegate\n * $sceDelegate service}, used as a delegate for {@link ng.$sce Strict Contextual Escaping (SCE)}.\n *\n * The `$sceDelegateProvider` allows one to get/set the `trustedResourceUrlList` and\n * `bannedResourceUrlList` used to ensure that the URLs used for sourcing AngularJS templates and\n * other script-running URLs are safe (all places that use the `$sce.RESOURCE_URL` context). See\n * {@link ng.$sceDelegateProvider#trustedResourceUrlList\n * $sceDelegateProvider.trustedResourceUrlList} and\n * {@link ng.$sceDelegateProvider#bannedResourceUrlList $sceDelegateProvider.bannedResourceUrlList},\n *\n * For the general details about this service in AngularJS, read the main page for {@link ng.$sce\n * Strict Contextual Escaping (SCE)}.\n *\n * **Example**:  Consider the following case. <a name=\"example\"></a>\n *\n * - your app is hosted at url `http://myapp.example.com/`\n * - but some of your templates are hosted on other domains you control such as\n *   `http://srv01.assets.example.com/`, `http://srv02.assets.example.com/`, etc.\n * - and you have an open redirect at `http://myapp.example.com/clickThru?...`.\n *\n * Here is what a secure configuration for this scenario might look like:\n *\n * ```\n *  angular.module('myApp', []).config(function($sceDelegateProvider) {\n *    $sceDelegateProvider.trustedResourceUrlList([\n *      // Allow same origin resource loads.\n *      'self',\n *      // Allow loading from our assets domain.  Notice the difference between * and **.\n *      'http://srv*.assets.example.com/**'\n *    ]);\n *\n *    // The banned resource URL list overrides the trusted resource URL list so the open redirect\n *    // here is blocked.\n *    $sceDelegateProvider.bannedResourceUrlList([\n *      'http://myapp.example.com/clickThru**'\n *    ]);\n *  });\n * ```\n * Note that an empty trusted resource URL list will block every resource URL from being loaded, and will require\n * you to manually mark each one as trusted with `$sce.trustAsResourceUrl`. However, templates\n * requested by {@link ng.$templateRequest $templateRequest} that are present in\n * {@link ng.$templateCache $templateCache} will not go through this check. If you have a mechanism\n * to populate your templates in that cache at config time, then it is a good idea to remove 'self'\n * from the trusted resource URL lsit. This helps to mitigate the security impact of certain types\n * of issues, like for instance attacker-controlled `ng-includes`.\n */\n\nfunction $SceDelegateProvider() {\n  this.SCE_CONTEXTS = SCE_CONTEXTS;\n\n  // Resource URLs can also be trusted by policy.\n  var trustedResourceUrlList = ['self'],\n      bannedResourceUrlList = [];\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#trustedResourceUrlList\n   * @kind function\n   *\n   * @param {Array=} trustedResourceUrlList When provided, replaces the trustedResourceUrlList with\n   *     the value provided.  This must be an array or null.  A snapshot of this array is used so\n   *     further changes to the array are ignored.\n   *     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *     allowed in this array.\n   *\n   * @return {Array} The currently set trusted resource URL array.\n   *\n   * @description\n   * Sets/Gets the list trusted of resource URLs.\n   *\n   * The **default value** when no `trustedResourceUrlList` has been explicitly set is `['self']`\n   * allowing only same origin resource requests.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** the default `trustedResourceUrlList` of 'self' is not recommended if your app shares\n   * its origin with other apps! It is a good idea to limit it to only your application's directory.\n   * </div>\n   */\n  this.trustedResourceUrlList = function(value) {\n    if (arguments.length) {\n      trustedResourceUrlList = adjustMatchers(value);\n    }\n    return trustedResourceUrlList;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlWhitelist\n   * @kind function\n   *\n   * @deprecated\n   * sinceVersion=\"1.8.1\"\n   *\n   * This method is deprecated. Use {@link $sceDelegateProvider#trustedResourceUrlList\n   * trustedResourceUrlList} instead.\n   */\n  Object.defineProperty(this, 'resourceUrlWhitelist', {\n    get: function() {\n      return this.trustedResourceUrlList;\n    },\n    set: function(value) {\n      this.trustedResourceUrlList = value;\n    }\n  });\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#bannedResourceUrlList\n   * @kind function\n   *\n   * @param {Array=} bannedResourceUrlList When provided, replaces the `bannedResourceUrlList` with\n   *     the value provided. This must be an array or null. A snapshot of this array is used so\n   *     further changes to the array are ignored.</p><p>\n   *     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items\n   *     allowed in this array.</p><p>\n   *     The typical usage for the `bannedResourceUrlList` is to **block\n   *     [open redirects](http://cwe.mitre.org/data/definitions/601.html)** served by your domain as\n   *     these would otherwise be trusted but actually return content from the redirected domain.\n   *     </p><p>\n   *     Finally, **the banned resource URL list overrides the trusted resource URL list** and has\n   *     the final say.\n   *\n   * @return {Array} The currently set `bannedResourceUrlList` array.\n   *\n   * @description\n   * Sets/Gets the `bannedResourceUrlList` of trusted resource URLs.\n   *\n   * The **default value** when no trusted resource URL list has been explicitly set is the empty\n   * array (i.e. there is no `bannedResourceUrlList`.)\n   */\n  this.bannedResourceUrlList = function(value) {\n    if (arguments.length) {\n      bannedResourceUrlList = adjustMatchers(value);\n    }\n    return bannedResourceUrlList;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $sceDelegateProvider#resourceUrlBlacklist\n   * @kind function\n   *\n   * @deprecated\n   * sinceVersion=\"1.8.1\"\n   *\n   * This method is deprecated. Use {@link $sceDelegateProvider#bannedResourceUrlList\n   * bannedResourceUrlList} instead.\n   */\n  Object.defineProperty(this, 'resourceUrlBlacklist', {\n    get: function() {\n      return this.bannedResourceUrlList;\n    },\n    set: function(value) {\n      this.bannedResourceUrlList = value;\n    }\n  });\n\n  this.$get = ['$injector', '$$sanitizeUri', function($injector, $$sanitizeUri) {\n\n    var htmlSanitizer = function htmlSanitizer(html) {\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    };\n\n    if ($injector.has('$sanitize')) {\n      htmlSanitizer = $injector.get('$sanitize');\n    }\n\n\n    function matchUrl(matcher, parsedUrl) {\n      if (matcher === 'self') {\n        return urlIsSameOrigin(parsedUrl) || urlIsSameOriginAsBaseUrl(parsedUrl);\n      } else {\n        // definitely a regex.  See adjustMatchers()\n        return !!matcher.exec(parsedUrl.href);\n      }\n    }\n\n    function isResourceUrlAllowedByPolicy(url) {\n      var parsedUrl = urlResolve(url.toString());\n      var i, n, allowed = false;\n      // Ensure that at least one item from the trusted resource URL list allows this url.\n      for (i = 0, n = trustedResourceUrlList.length; i < n; i++) {\n        if (matchUrl(trustedResourceUrlList[i], parsedUrl)) {\n          allowed = true;\n          break;\n        }\n      }\n      if (allowed) {\n        // Ensure that no item from the banned resource URL list has blocked this url.\n        for (i = 0, n = bannedResourceUrlList.length; i < n; i++) {\n          if (matchUrl(bannedResourceUrlList[i], parsedUrl)) {\n            allowed = false;\n            break;\n          }\n        }\n      }\n      return allowed;\n    }\n\n    function generateHolderType(Base) {\n      var holderType = function TrustedValueHolderType(trustedValue) {\n        this.$$unwrapTrustedValue = function() {\n          return trustedValue;\n        };\n      };\n      if (Base) {\n        holderType.prototype = new Base();\n      }\n      holderType.prototype.valueOf = function sceValueOf() {\n        return this.$$unwrapTrustedValue();\n      };\n      holderType.prototype.toString = function sceToString() {\n        return this.$$unwrapTrustedValue().toString();\n      };\n      return holderType;\n    }\n\n    var trustedValueHolderBase = generateHolderType(),\n        byType = {};\n\n    byType[SCE_CONTEXTS.HTML] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.CSS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.MEDIA_URL] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.URL] = generateHolderType(byType[SCE_CONTEXTS.MEDIA_URL]);\n    byType[SCE_CONTEXTS.JS] = generateHolderType(trustedValueHolderBase);\n    byType[SCE_CONTEXTS.RESOURCE_URL] = generateHolderType(byType[SCE_CONTEXTS.URL]);\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#trustAs\n     *\n     * @description\n     * Returns a trusted representation of the parameter for the specified context. This trusted\n     * object will later on be used as-is, without any security check, by bindings or directives\n     * that require this security context.\n     * For instance, marking a string as trusted for the `$sce.HTML` context will entirely bypass\n     * the potential `$sanitize` call in corresponding `$sce.HTML` bindings or directives, such as\n     * `ng-bind-html`. Note that in most cases you won't need to call this function: if you have the\n     * sanitizer loaded, passing the value itself will render all the HTML that does not pose a\n     * security risk.\n     *\n     * See {@link ng.$sceDelegate#getTrusted getTrusted} for the function that will consume those\n     * trusted values, and {@link ng.$sce $sce} for general documentation about strict contextual\n     * escaping.\n     *\n     * @param {string} type The context in which this value is safe for use, e.g. `$sce.URL`,\n     *     `$sce.RESOURCE_URL`, `$sce.HTML`, `$sce.JS` or `$sce.CSS`.\n     *\n     * @param {*} value The value that should be considered trusted.\n     * @return {*} A trusted representation of value, that can be used in the given context.\n     */\n    function trustAs(type, trustedValue) {\n      var Constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      if (!Constructor) {\n        throw $sceMinErr('icontext',\n            'Attempted to trust a value in invalid context. Context: {0}; Value: {1}',\n            type, trustedValue);\n      }\n      if (trustedValue === null || isUndefined(trustedValue) || trustedValue === '') {\n        return trustedValue;\n      }\n      // All the current contexts in SCE_CONTEXTS happen to be strings.  In order to avoid trusting\n      // mutable objects, we ensure here that the value passed in is actually a string.\n      if (typeof trustedValue !== 'string') {\n        throw $sceMinErr('itype',\n            'Attempted to trust a non-string value in a content requiring a string: Context: {0}',\n            type);\n      }\n      return new Constructor(trustedValue);\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#valueOf\n     *\n     * @description\n     * If the passed parameter had been returned by a prior call to {@link ng.$sceDelegate#trustAs\n     * `$sceDelegate.trustAs`}, returns the value that had been passed to {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.\n     *\n     * If the passed parameter is not a value that had been returned by {@link\n     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}, it must be returned as-is.\n     *\n     * @param {*} value The result of a prior {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}\n     *     call or anything else.\n     * @return {*} The `value` that was originally provided to {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} if `value` is the result of such a call.  Otherwise, returns\n     *     `value` unchanged.\n     */\n    function valueOf(maybeTrusted) {\n      if (maybeTrusted instanceof trustedValueHolderBase) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      } else {\n        return maybeTrusted;\n      }\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sceDelegate#getTrusted\n     *\n     * @description\n     * Given an object and a security context in which to assign it, returns a value that's safe to\n     * use in this context, which was represented by the parameter. To do so, this function either\n     * unwraps the safe type it has been given (for instance, a {@link ng.$sceDelegate#trustAs\n     * `$sceDelegate.trustAs`} result), or it might try to sanitize the value given, depending on\n     * the context and sanitizer availablility.\n     *\n     * The contexts that can be sanitized are $sce.MEDIA_URL, $sce.URL and $sce.HTML. The first two are available\n     * by default, and the third one relies on the `$sanitize` service (which may be loaded through\n     * the `ngSanitize` module). Furthermore, for $sce.RESOURCE_URL context, a plain string may be\n     * accepted if the resource url policy defined by {@link ng.$sceDelegateProvider#trustedResourceUrlList\n     * `$sceDelegateProvider.trustedResourceUrlList`} and {@link ng.$sceDelegateProvider#bannedResourceUrlList\n     * `$sceDelegateProvider.bannedResourceUrlList`} accepts that resource.\n     *\n     * This function will throw if the safe type isn't appropriate for this context, or if the\n     * value given cannot be accepted in the context (which might be caused by sanitization not\n     * being available, or the value not being recognized as safe).\n     *\n     * <div class=\"alert alert-danger\">\n     * Disabling auto-escaping is extremely dangerous, it usually creates a Cross Site Scripting\n     * (XSS) vulnerability in your application.\n     * </div>\n     *\n     * @param {string} type The context in which this value is to be used (such as `$sce.HTML`).\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sceDelegate#trustAs\n     *     `$sceDelegate.trustAs`} call, or anything else (which will not be considered trusted.)\n     * @return {*} A version of the value that's safe to use in the given context, or throws an\n     *     exception if this is impossible.\n     */\n    function getTrusted(type, maybeTrusted) {\n      if (maybeTrusted === null || isUndefined(maybeTrusted) || maybeTrusted === '') {\n        return maybeTrusted;\n      }\n      var constructor = (byType.hasOwnProperty(type) ? byType[type] : null);\n      // If maybeTrusted is a trusted class instance or subclass instance, then unwrap and return\n      // as-is.\n      if (constructor && maybeTrusted instanceof constructor) {\n        return maybeTrusted.$$unwrapTrustedValue();\n      }\n\n      // If maybeTrusted is a trusted class instance but not of the correct trusted type\n      // then unwrap it and allow it to pass through to the rest of the checks\n      if (isFunction(maybeTrusted.$$unwrapTrustedValue)) {\n        maybeTrusted = maybeTrusted.$$unwrapTrustedValue();\n      }\n\n      // If we get here, then we will either sanitize the value or throw an exception.\n      if (type === SCE_CONTEXTS.MEDIA_URL || type === SCE_CONTEXTS.URL) {\n        // we attempt to sanitize non-resource URLs\n        return $$sanitizeUri(maybeTrusted.toString(), type === SCE_CONTEXTS.MEDIA_URL);\n      } else if (type === SCE_CONTEXTS.RESOURCE_URL) {\n        if (isResourceUrlAllowedByPolicy(maybeTrusted)) {\n          return maybeTrusted;\n        } else {\n          throw $sceMinErr('insecurl',\n              'Blocked loading resource from url not allowed by $sceDelegate policy.  URL: {0}',\n              maybeTrusted.toString());\n        }\n      } else if (type === SCE_CONTEXTS.HTML) {\n        // htmlSanitizer throws its own error when no sanitizer is available.\n        return htmlSanitizer(maybeTrusted);\n      }\n      // Default error when the $sce service has no way to make the input safe.\n      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');\n    }\n\n    return { trustAs: trustAs,\n             getTrusted: getTrusted,\n             valueOf: valueOf };\n  }];\n}\n\n\n/**\n * @ngdoc provider\n * @name $sceProvider\n * @this\n *\n * @description\n *\n * The $sceProvider provider allows developers to configure the {@link ng.$sce $sce} service.\n * -   enable/disable Strict Contextual Escaping (SCE) in a module\n * -   override the default implementation with a custom delegate\n *\n * Read more about {@link ng.$sce Strict Contextual Escaping (SCE)}.\n */\n\n/**\n * @ngdoc service\n * @name $sce\n * @kind function\n *\n * @description\n *\n * `$sce` is a service that provides Strict Contextual Escaping services to AngularJS.\n *\n * ## Strict Contextual Escaping\n *\n * Strict Contextual Escaping (SCE) is a mode in which AngularJS constrains bindings to only render\n * trusted values. Its goal is to assist in writing code in a way that (a) is secure by default, and\n * (b) makes auditing for security vulnerabilities such as XSS, clickjacking, etc. a lot easier.\n *\n * ### Overview\n *\n * To systematically block XSS security bugs, AngularJS treats all values as untrusted by default in\n * HTML or sensitive URL bindings. When binding untrusted values, AngularJS will automatically\n * run security checks on them (sanitizations, trusted URL resource, depending on context), or throw\n * when it cannot guarantee the security of the result. That behavior depends strongly on contexts:\n * HTML can be sanitized, but template URLs cannot, for instance.\n *\n * To illustrate this, consider the `ng-bind-html` directive. It renders its value directly as HTML:\n * we call that the *context*. When given an untrusted input, AngularJS will attempt to sanitize it\n * before rendering if a sanitizer is available, and throw otherwise. To bypass sanitization and\n * render the input as-is, you will need to mark it as trusted for that context before attempting\n * to bind it.\n *\n * As of version 1.2, AngularJS ships with SCE enabled by default.\n *\n * ### In practice\n *\n * Here's an example of a binding in a privileged context:\n *\n * ```\n * <input ng-model=\"userHtml\" aria-label=\"User input\">\n * <div ng-bind-html=\"userHtml\"></div>\n * ```\n *\n * Notice that `ng-bind-html` is bound to `userHtml` controlled by the user.  With SCE\n * disabled, this application allows the user to render arbitrary HTML into the DIV, which would\n * be an XSS security bug. In a more realistic example, one may be rendering user comments, blog\n * articles, etc. via bindings. (HTML is just one example of a context where rendering user\n * controlled input creates security vulnerabilities.)\n *\n * For the case of HTML, you might use a library, either on the client side, or on the server side,\n * to sanitize unsafe HTML before binding to the value and rendering it in the document.\n *\n * How would you ensure that every place that used these types of bindings was bound to a value that\n * was sanitized by your library (or returned as safe for rendering by your server?)  How can you\n * ensure that you didn't accidentally delete the line that sanitized the value, or renamed some\n * properties/fields and forgot to update the binding to the sanitized value?\n *\n * To be secure by default, AngularJS makes sure bindings go through that sanitization, or\n * any similar validation process, unless there's a good reason to trust the given value in this\n * context.  That trust is formalized with a function call. This means that as a developer, you\n * can assume all untrusted bindings are safe. Then, to audit your code for binding security issues,\n * you just need to ensure the values you mark as trusted indeed are safe - because they were\n * received from your server, sanitized by your library, etc. You can organize your codebase to\n * help with this - perhaps allowing only the files in a specific directory to do this.\n * Ensuring that the internal API exposed by that code doesn't markup arbitrary values as safe then\n * becomes a more manageable task.\n *\n * In the case of AngularJS' SCE service, one uses {@link ng.$sce#trustAs $sce.trustAs}\n * (and shorthand methods such as {@link ng.$sce#trustAsHtml $sce.trustAsHtml}, etc.) to\n * build the trusted versions of your values.\n *\n * ### How does it work?\n *\n * In privileged contexts, directives and code will bind to the result of {@link ng.$sce#getTrusted\n * $sce.getTrusted(context, value)} rather than to the value directly.  Think of this function as\n * a way to enforce the required security context in your data sink. Directives use {@link\n * ng.$sce#parseAs $sce.parseAs} rather than `$parse` to watch attribute bindings, which performs\n * the {@link ng.$sce#getTrusted $sce.getTrusted} behind the scenes on non-constant literals. Also,\n * when binding without directives, AngularJS will understand the context of your bindings\n * automatically.\n *\n * As an example, {@link ng.directive:ngBindHtml ngBindHtml} uses {@link\n * ng.$sce#parseAsHtml $sce.parseAsHtml(binding expression)}.  Here's the actual code (slightly\n * simplified):\n *\n * ```\n * var ngBindHtmlDirective = ['$sce', function($sce) {\n *   return function(scope, element, attr) {\n *     scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function(value) {\n *       element.html(value || '');\n *     });\n *   };\n * }];\n * ```\n *\n * ### Impact on loading templates\n *\n * This applies both to the {@link ng.directive:ngInclude `ng-include`} directive as well as\n * `templateUrl`'s specified by {@link guide/directive directives}.\n *\n * By default, AngularJS only loads templates from the same domain and protocol as the application\n * document.  This is done by calling {@link ng.$sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on the template URL.  To load templates from other domains and/or\n * protocols, you may either add them to the {@link ng.$sceDelegateProvider#trustedResourceUrlList\n * trustedResourceUrlList} or {@link ng.$sce#trustAsResourceUrl wrap them} into trusted values.\n *\n * *Please note*:\n * The browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy apply in addition to this and may further restrict whether the template is successfully\n * loaded.  This means that without the right CORS policy, loading templates from a different domain\n * won't work on all browsers.  Also, loading templates from `file://` URL does not work on some\n * browsers.\n *\n * ### This feels like too much overhead\n *\n * It's important to remember that SCE only applies to interpolation expressions.\n *\n * If your expressions are constant literals, they're automatically trusted and you don't need to\n * call `$sce.trustAs` on them (e.g.\n * `<div ng-bind-html=\"'<b>implicitly trusted</b>'\"></div>`) just works (remember to include the\n * `ngSanitize` module). The `$sceDelegate` will also use the `$sanitize` service if it is available\n * when binding untrusted values to `$sce.HTML` context.\n * AngularJS provides an implementation in `angular-sanitize.js`, and if you\n * wish to use it, you will also need to depend on the {@link ngSanitize `ngSanitize`} module in\n * your application.\n *\n * The included {@link ng.$sceDelegate $sceDelegate} comes with sane defaults to allow you to load\n * templates in `ng-include` from your application's domain without having to even know about SCE.\n * It blocks loading templates from other domains or loading templates over http from an https\n * served document.  You can change these by setting your own custom {@link\n * ng.$sceDelegateProvider#trustedResourceUrlList trusted resource URL list} and {@link\n * ng.$sceDelegateProvider#bannedResourceUrlList banned resource URL list} for matching such URLs.\n *\n * This significantly reduces the overhead.  It is far easier to pay the small overhead and have an\n * application that's secure and can be audited to verify that with much more ease than bolting\n * security onto an application later.\n *\n * <a name=\"contexts\"></a>\n * ### What trusted context types are supported?\n *\n * | Context             | Notes          |\n * |---------------------|----------------|\n * | `$sce.HTML`         | For HTML that's safe to source into the application.  The {@link ng.directive:ngBindHtml ngBindHtml} directive uses this context for bindings. If an unsafe value is encountered and the {@link ngSanitize $sanitize} module is present this will sanitize the value instead of throwing an error. |\n * | `$sce.CSS`          | For CSS that's safe to source into the application.  Currently unused.  Feel free to use it in your own directives. |\n * | `$sce.MEDIA_URL`    | For URLs that are safe to render as media. Is automatically converted from string by sanitizing when needed. |\n * | `$sce.URL`          | For URLs that are safe to follow as links. Is automatically converted from string by sanitizing when needed. Note that `$sce.URL` makes a stronger statement about the URL than `$sce.MEDIA_URL` does and therefore contexts requiring values trusted for `$sce.URL` can be used anywhere that values trusted for `$sce.MEDIA_URL` are required.|\n * | `$sce.RESOURCE_URL` | For URLs that are not only safe to follow as links, but whose contents are also safe to include in your application.  Examples include `ng-include`, `src` / `ngSrc` bindings for tags other than `IMG` (e.g. `IFRAME`, `OBJECT`, etc.)  <br><br>Note that `$sce.RESOURCE_URL` makes a stronger statement about the URL than `$sce.URL` or `$sce.MEDIA_URL` do and therefore contexts requiring values trusted for `$sce.RESOURCE_URL` can be used anywhere that values trusted for `$sce.URL` or `$sce.MEDIA_URL` are required. <br><br> The {@link $sceDelegateProvider#trustedResourceUrlList $sceDelegateProvider#trustedResourceUrlList()} and {@link $sceDelegateProvider#bannedResourceUrlList $sceDelegateProvider#bannedResourceUrlList()} can be used to restrict trusted origins for `RESOURCE_URL` |\n * | `$sce.JS`           | For JavaScript that is safe to execute in your application's context.  Currently unused.  Feel free to use it in your own directives. |\n *\n *\n * <div class=\"alert alert-warning\">\n * Be aware that, before AngularJS 1.7.0, `a[href]` and `img[src]` used to sanitize their\n * interpolated values directly rather than rely upon {@link ng.$sce#getTrusted `$sce.getTrusted`}.\n *\n * **As of 1.7.0, this is no longer the case.**\n *\n * Now such interpolations are marked as requiring `$sce.URL` (for `a[href]`) or `$sce.MEDIA_URL`\n * (for `img[src]`), so that the sanitization happens (via `$sce.getTrusted...`) when the `$interpolate`\n * service evaluates the expressions.\n * </div>\n *\n * There are no CSS or JS context bindings in AngularJS currently, so their corresponding `$sce.trustAs`\n * functions aren't useful yet. This might evolve.\n *\n * ### Format of items in {@link ng.$sceDelegateProvider#trustedResourceUrlList trustedResourceUrlList}/{@link ng.$sceDelegateProvider#bannedResourceUrlList bannedResourceUrlList} <a name=\"resourceUrlPatternItem\"></a>\n *\n *  Each element in these arrays must be one of the following:\n *\n *  - **'self'**\n *    - The special **string**, `'self'`, can be used to match against all URLs of the **same\n *      domain** as the application document using the **same protocol**.\n *  - **String** (except the special value `'self'`)\n *    - The string is matched against the full *normalized / absolute URL* of the resource\n *      being tested (substring matches are not good enough.)\n *    - There are exactly **two wildcard sequences** - `*` and `**`.  All other characters\n *      match themselves.\n *    - `*`: matches zero or more occurrences of any character other than one of the following 6\n *      characters: '`:`', '`/`', '`.`', '`?`', '`&`' and '`;`'.  It's a useful wildcard for use\n *      for matching resource URL lists.\n *    - `**`: matches zero or more occurrences of *any* character.  As such, it's not\n *      appropriate for use in a scheme, domain, etc. as it would match too much.  (e.g.\n *      http://**.example.com/ would match http://evil.com/?ignore=.example.com/ and that might\n *      not have been the intention.)  Its usage at the very end of the path is ok.  (e.g.\n *      http://foo.example.com/templates/**).\n *  - **RegExp** (*see caveat below*)\n *    - *Caveat*:  While regular expressions are powerful and offer great flexibility,  their syntax\n *      (and all the inevitable escaping) makes them *harder to maintain*.  It's easy to\n *      accidentally introduce a bug when one updates a complex expression (imho, all regexes should\n *      have good test coverage).  For instance, the use of `.` in the regex is correct only in a\n *      small number of cases.  A `.` character in the regex used when matching the scheme or a\n *      subdomain could be matched against a `:` or literal `.` that was likely not intended.   It\n *      is highly recommended to use the string patterns and only fall back to regular expressions\n *      as a last resort.\n *    - The regular expression must be an instance of RegExp (i.e. not a string.)  It is\n *      matched against the **entire** *normalized / absolute URL* of the resource being tested\n *      (even when the RegExp did not have the `^` and `$` codes.)  In addition, any flags\n *      present on the RegExp (such as multiline, global, ignoreCase) are ignored.\n *    - If you are generating your JavaScript from some other templating engine (not\n *      recommended, e.g. in issue [#4006](https://github.com/angular/angular.js/issues/4006)),\n *      remember to escape your regular expression (and be aware that you might need more than\n *      one level of escaping depending on your templating engine and the way you interpolated\n *      the value.)  Do make use of your platform's escaping mechanism as it might be good\n *      enough before coding your own.  E.g. Ruby has\n *      [Regexp.escape(str)](http://www.ruby-doc.org/core-2.0.0/Regexp.html#method-c-escape)\n *      and Python has [re.escape](http://docs.python.org/library/re.html#re.escape).\n *      Javascript lacks a similar built in function for escaping.  Take a look at Google\n *      Closure library's [goog.string.regExpEscape(s)](\n *      http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962).\n *\n * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} for an example.\n *\n * ### Show me an example using SCE.\n *\n * <example module=\"mySceApp\" deps=\"angular-sanitize.js\" name=\"sce-service\">\n * <file name=\"index.html\">\n *   <div ng-controller=\"AppController as myCtrl\">\n *     <i ng-bind-html=\"myCtrl.explicitlyTrustedHtml\" id=\"explicitlyTrustedHtml\"></i><br><br>\n *     <b>User comments</b><br>\n *     By default, HTML that isn't explicitly trusted (e.g. Alice's comment) is sanitized when\n *     $sanitize is available.  If $sanitize isn't available, this results in an error instead of an\n *     exploit.\n *     <div class=\"well\">\n *       <div ng-repeat=\"userComment in myCtrl.userComments\">\n *         <b>{{userComment.name}}</b>:\n *         <span ng-bind-html=\"userComment.htmlComment\" class=\"htmlComment\"></span>\n *         <br>\n *       </div>\n *     </div>\n *   </div>\n * </file>\n *\n * <file name=\"script.js\">\n *   angular.module('mySceApp', ['ngSanitize'])\n *     .controller('AppController', ['$http', '$templateCache', '$sce',\n *       function AppController($http, $templateCache, $sce) {\n *         var self = this;\n *         $http.get('test_data.json', {cache: $templateCache}).then(function(response) {\n *           self.userComments = response.data;\n *         });\n *         self.explicitlyTrustedHtml = $sce.trustAsHtml(\n *             '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *             'sanitization.&quot;\">Hover over this text.</span>');\n *       }]);\n * </file>\n *\n * <file name=\"test_data.json\">\n * [\n *   { \"name\": \"Alice\",\n *     \"htmlComment\":\n *         \"<span onmouseover='this.textContent=\\\"PWN3D!\\\"'>Is <i>anyone</i> reading this?</span>\"\n *   },\n *   { \"name\": \"Bob\",\n *     \"htmlComment\": \"<i>Yes!</i>  Am I the only other one?\"\n *   }\n * ]\n * </file>\n *\n * <file name=\"protractor.js\" type=\"protractor\">\n *   describe('SCE doc demo', function() {\n *     it('should sanitize untrusted values', function() {\n *       expect(element.all(by.css('.htmlComment')).first().getAttribute('innerHTML'))\n *           .toBe('<span>Is <i>anyone</i> reading this?</span>');\n *     });\n *\n *     it('should NOT sanitize explicitly trusted values', function() {\n *       expect(element(by.id('explicitlyTrustedHtml')).getAttribute('innerHTML')).toBe(\n *           '<span onmouseover=\"this.textContent=&quot;Explicitly trusted HTML bypasses ' +\n *           'sanitization.&quot;\">Hover over this text.</span>');\n *     });\n *   });\n * </file>\n * </example>\n *\n *\n *\n * ## Can I disable SCE completely?\n *\n * Yes, you can.  However, this is strongly discouraged.  SCE gives you a lot of security benefits\n * for little coding overhead.  It will be much harder to take an SCE disabled application and\n * either secure it on your own or enable SCE at a later stage.  It might make sense to disable SCE\n * for cases where you have a lot of existing code that was written before SCE was introduced and\n * you're migrating them a module at a time. Also do note that this is an app-wide setting, so if\n * you are writing a library, you will cause security bugs applications using it.\n *\n * That said, here's how you can completely disable SCE:\n *\n * ```\n * angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) {\n *   // Completely disable SCE.  For demonstration purposes only!\n *   // Do not use in new projects or libraries.\n *   $sceProvider.enabled(false);\n * });\n * ```\n *\n */\n\nfunction $SceProvider() {\n  var enabled = true;\n\n  /**\n   * @ngdoc method\n   * @name $sceProvider#enabled\n   * @kind function\n   *\n   * @param {boolean=} value If provided, then enables/disables SCE application-wide.\n   * @return {boolean} True if SCE is enabled, false otherwise.\n   *\n   * @description\n   * Enables/disables SCE and returns the current value.\n   */\n  this.enabled = function(value) {\n    if (arguments.length) {\n      enabled = !!value;\n    }\n    return enabled;\n  };\n\n\n  /* Design notes on the default implementation for SCE.\n   *\n   * The API contract for the SCE delegate\n   * -------------------------------------\n   * The SCE delegate object must provide the following 3 methods:\n   *\n   * - trustAs(contextEnum, value)\n   *     This method is used to tell the SCE service that the provided value is OK to use in the\n   *     contexts specified by contextEnum.  It must return an object that will be accepted by\n   *     getTrusted() for a compatible contextEnum and return this value.\n   *\n   * - valueOf(value)\n   *     For values that were not produced by trustAs(), return them as is.  For values that were\n   *     produced by trustAs(), return the corresponding input value to trustAs.  Basically, if\n   *     trustAs is wrapping the given values into some type, this operation unwraps it when given\n   *     such a value.\n   *\n   * - getTrusted(contextEnum, value)\n   *     This function should return the value that is safe to use in the context specified by\n   *     contextEnum or throw and exception otherwise.\n   *\n   * NOTE: This contract deliberately does NOT state that values returned by trustAs() must be\n   * opaque or wrapped in some holder object.  That happens to be an implementation detail.  For\n   * instance, an implementation could maintain a registry of all trusted objects by context.  In\n   * such a case, trustAs() would return the same object that was passed in.  getTrusted() would\n   * return the same object passed in if it was found in the registry under a compatible context or\n   * throw an exception otherwise.  An implementation might only wrap values some of the time based\n   * on some criteria.  getTrusted() might return a value and not throw an exception for special\n   * constants or objects even if not wrapped.  All such implementations fulfill this contract.\n   *\n   *\n   * A note on the inheritance model for SCE contexts\n   * ------------------------------------------------\n   * I've used inheritance and made RESOURCE_URL wrapped types a subtype of URL wrapped types.  This\n   * is purely an implementation details.\n   *\n   * The contract is simply this:\n   *\n   *     getTrusted($sce.RESOURCE_URL, value) succeeding implies that getTrusted($sce.URL, value)\n   *     will also succeed.\n   *\n   * Inheritance happens to capture this in a natural way. In some future, we may not use\n   * inheritance anymore. That is OK because no code outside of sce.js and sceSpecs.js would need to\n   * be aware of this detail.\n   */\n\n  this.$get = ['$parse', '$sceDelegate', function(\n                $parse,   $sceDelegate) {\n    // Support: IE 9-11 only\n    // Prereq: Ensure that we're not running in IE<11 quirks mode.  In that mode, IE < 11 allow\n    // the \"expression(javascript expression)\" syntax which is insecure.\n    if (enabled && msie < 8) {\n      throw $sceMinErr('iequirks',\n        'Strict Contextual Escaping does not support Internet Explorer version < 11 in quirks ' +\n        'mode.  You can fix this by adding the text <!doctype html> to the top of your HTML ' +\n        'document.  See http://docs.angularjs.org/api/ng.$sce for more information.');\n    }\n\n    var sce = shallowCopy(SCE_CONTEXTS);\n\n    /**\n     * @ngdoc method\n     * @name $sce#isEnabled\n     * @kind function\n     *\n     * @return {Boolean} True if SCE is enabled, false otherwise.  If you want to set the value, you\n     *     have to do it at module config time on {@link ng.$sceProvider $sceProvider}.\n     *\n     * @description\n     * Returns a boolean indicating if SCE is enabled.\n     */\n    sce.isEnabled = function() {\n      return enabled;\n    };\n    sce.trustAs = $sceDelegate.trustAs;\n    sce.getTrusted = $sceDelegate.getTrusted;\n    sce.valueOf = $sceDelegate.valueOf;\n\n    if (!enabled) {\n      sce.trustAs = sce.getTrusted = function(type, value) { return value; };\n      sce.valueOf = identity;\n    }\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAs\n     *\n     * @description\n     * Converts AngularJS {@link guide/expression expression} into a function.  This is like {@link\n     * ng.$parse $parse} and is identical when the expression is a literal constant.  Otherwise, it\n     * wraps the expression in a call to {@link ng.$sce#getTrusted $sce.getTrusted(*type*,\n     * *result*)}\n     *\n     * @param {string} type The SCE context in which this result will be used.\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n    sce.parseAs = function sceParseAs(type, expr) {\n      var parsed = $parse(expr);\n      if (parsed.literal && parsed.constant) {\n        return parsed;\n      } else {\n        return $parse(expr, function(value) {\n          return sce.getTrusted(type, value);\n        });\n      }\n    };\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAs\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}. As such, returns a\n     * wrapped object that represents your value, and the trust you have in its safety for the given\n     * context. AngularJS can then use that value as-is in bindings of the specified secure context.\n     * This is used in bindings for `ng-bind-html`, `ng-include`, and most `src` attribute\n     * interpolations. See {@link ng.$sce $sce} for strict contextual escaping.\n     *\n     * @param {string} type The context in which this value is safe for use, e.g. `$sce.URL`,\n     *     `$sce.RESOURCE_URL`, `$sce.HTML`, `$sce.JS` or `$sce.CSS`.\n     *\n     * @param {*} value The value that that should be considered trusted.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in the context you specified.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsHtml(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.HTML, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.HTML` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.HTML` context (like `ng-bind-html`).\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsCss\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsCss(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.CSS, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.CSS` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant\n     *     of your `value` in `$sce.CSS` context. This context is currently unused, so there are\n     *     almost no reasons to use this function so far.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.URL, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.URL` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.URL` context. That context is currently unused, so there are almost no reasons\n     *     to use this function so far.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.RESOURCE_URL` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.RESOURCE_URL` context (template URLs in `ng-include`, most `src` attribute\n     *     bindings, ...)\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#trustAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.trustAsJs(value)` →\n     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.JS, value)`}\n     *\n     * @param {*} value The value to mark as trusted for `$sce.JS` context.\n     * @return {*} A wrapped version of value that can be used as a trusted variant of your `value`\n     *     in `$sce.JS` context. That context is currently unused, so there are almost no reasons to\n     *     use this function so far.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrusted\n     *\n     * @description\n     * Delegates to {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted`}.  As such,\n     * takes any input, and either returns a value that's safe to use in the specified context,\n     * or throws an exception. This function is aware of trusted values created by the `trustAs`\n     * function and its shorthands, and when contexts are appropriate, returns the unwrapped value\n     * as-is. Finally, this function can also throw when there is no way to turn `maybeTrusted` in a\n     * safe value (e.g., no sanitization is available or possible.)\n     *\n     * @param {string} type The context in which this value is to be used.\n     * @param {*} maybeTrusted The result of a prior {@link ng.$sce#trustAs\n     *     `$sce.trustAs`} call, or anything else (which will not be considered trusted.)\n     * @return {*} A version of the value that's safe to use in the given context, or throws an\n     *     exception if this is impossible.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedHtml(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.HTML, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.HTML, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedCss\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedCss(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.CSS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.CSS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedResourceUrl(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.RESOURCE_URL, value)`}\n     *\n     * @param {*} value The value to pass to `$sceDelegate.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.RESOURCE_URL, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#getTrustedJs\n     *\n     * @description\n     * Shorthand method.  `$sce.getTrustedJs(value)` →\n     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.JS, value)`}\n     *\n     * @param {*} value The value to pass to `$sce.getTrusted`.\n     * @return {*} The return value of `$sce.getTrusted($sce.JS, value)`\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsHtml\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsHtml(expression string)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.HTML, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsCss\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsCss(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.CSS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsResourceUrl\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsResourceUrl(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.RESOURCE_URL, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    /**\n     * @ngdoc method\n     * @name $sce#parseAsJs\n     *\n     * @description\n     * Shorthand method.  `$sce.parseAsJs(value)` →\n     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.JS, value)`}\n     *\n     * @param {string} expression String expression to compile.\n     * @return {function(context, locals)} A function which represents the compiled expression:\n     *\n     *    * `context` – `{object}` – an object against which any expressions embedded in the\n     *      strings are evaluated against (typically a scope object).\n     *    * `locals` – `{object=}` – local variables context object, useful for overriding values\n     *      in `context`.\n     */\n\n    // Shorthand delegations.\n    var parse = sce.parseAs,\n        getTrusted = sce.getTrusted,\n        trustAs = sce.trustAs;\n\n    forEach(SCE_CONTEXTS, function(enumValue, name) {\n      var lName = lowercase(name);\n      sce[snakeToCamel('parse_as_' + lName)] = function(expr) {\n        return parse(enumValue, expr);\n      };\n      sce[snakeToCamel('get_trusted_' + lName)] = function(value) {\n        return getTrusted(enumValue, value);\n      };\n      sce[snakeToCamel('trust_as_' + lName)] = function(value) {\n        return trustAs(enumValue, value);\n      };\n    });\n\n    return sce;\n  }];\n}\n\n/* exported $SnifferProvider */\n\n/**\n * !!! This is an undocumented \"private\" service !!!\n *\n * @name $sniffer\n * @requires $window\n * @requires $document\n * @this\n *\n * @property {boolean} history Does the browser support html5 history api ?\n * @property {boolean} transitions Does the browser support CSS transition events ?\n * @property {boolean} animations Does the browser support CSS animation events ?\n *\n * @description\n * This is very simple implementation of testing browser's features.\n */\nfunction $SnifferProvider() {\n  this.$get = ['$window', '$document', function($window, $document) {\n    var eventSupport = {},\n        // Chrome Packaged Apps are not allowed to access `history.pushState`.\n        // If not sandboxed, they can be detected by the presence of `chrome.app.runtime`\n        // (see https://developer.chrome.com/apps/api_index). If sandboxed, they can be detected by\n        // the presence of an extension runtime ID and the absence of other Chrome runtime APIs\n        // (see https://developer.chrome.com/apps/manifest/sandbox).\n        // (NW.js apps have access to Chrome APIs, but do support `history`.)\n        isNw = $window.nw && $window.nw.process,\n        isChromePackagedApp =\n            !isNw &&\n            $window.chrome &&\n            ($window.chrome.app && $window.chrome.app.runtime ||\n                !$window.chrome.app && $window.chrome.runtime && $window.chrome.runtime.id),\n        hasHistoryPushState = !isChromePackagedApp && $window.history && $window.history.pushState,\n        android =\n          toInt((/android (\\d+)/.exec(lowercase(($window.navigator || {}).userAgent)) || [])[1]),\n        boxee = /Boxee/i.test(($window.navigator || {}).userAgent),\n        document = $document[0] || {},\n        bodyStyle = document.body && document.body.style,\n        transitions = false,\n        animations = false;\n\n    if (bodyStyle) {\n      // Support: Android <5, Blackberry Browser 10, default Chrome in Android 4.4.x\n      // Mentioned browsers need a -webkit- prefix for transitions & animations.\n      transitions = !!('transition' in bodyStyle || 'webkitTransition' in bodyStyle);\n      animations = !!('animation' in bodyStyle || 'webkitAnimation' in bodyStyle);\n    }\n\n\n    return {\n      // Android has history.pushState, but it does not update location correctly\n      // so let's not use the history API at all.\n      // http://code.google.com/p/android/issues/detail?id=17471\n      // https://github.com/angular/angular.js/issues/904\n\n      // older webkit browser (533.9) on Boxee box has exactly the same problem as Android has\n      // so let's not use the history API also\n      // We are purposefully using `!(android < 4)` to cover the case when `android` is undefined\n      history: !!(hasHistoryPushState && !(android < 4) && !boxee),\n      hasEvent: function(event) {\n        // Support: IE 9-11 only\n        // IE9 implements 'input' event it's so fubared that we rather pretend that it doesn't have\n        // it. In particular the event is not fired when backspace or delete key are pressed or\n        // when cut operation is performed.\n        // IE10+ implements 'input' event but it erroneously fires under various situations,\n        // e.g. when placeholder changes, or a form is focused.\n        if (event === 'input' && msie) return false;\n\n        if (isUndefined(eventSupport[event])) {\n          var divElm = document.createElement('div');\n          eventSupport[event] = 'on' + event in divElm;\n        }\n\n        return eventSupport[event];\n      },\n      csp: csp(),\n      transitions: transitions,\n      animations: animations,\n      android: android\n    };\n  }];\n}\n\n/**\n * ! This is a private undocumented service !\n *\n * @name $$taskTrackerFactory\n * @description\n * A function to create `TaskTracker` instances.\n *\n * A `TaskTracker` can keep track of pending tasks (grouped by type) and can notify interested\n * parties when all pending tasks (or tasks of a specific type) have been completed.\n *\n * @param {$log} log - A logger instance (such as `$log`). Used to log error during callback\n *     execution.\n *\n * @this\n */\nfunction $$TaskTrackerFactoryProvider() {\n  this.$get = valueFn(function(log) { return new TaskTracker(log); });\n}\n\nfunction TaskTracker(log) {\n  var self = this;\n  var taskCounts = {};\n  var taskCallbacks = [];\n\n  var ALL_TASKS_TYPE = self.ALL_TASKS_TYPE = '$$all$$';\n  var DEFAULT_TASK_TYPE = self.DEFAULT_TASK_TYPE = '$$default$$';\n\n  /**\n   * Execute the specified function and decrement the appropriate `taskCounts` counter.\n   * If the counter reaches 0, all corresponding `taskCallbacks` are executed.\n   *\n   * @param {Function} fn - The function to execute.\n   * @param {string=} [taskType=DEFAULT_TASK_TYPE] - The type of task that is being completed.\n   */\n  self.completeTask = completeTask;\n\n  /**\n   * Increase the task count for the specified task type (or the default task type if non is\n   * specified).\n   *\n   * @param {string=} [taskType=DEFAULT_TASK_TYPE] - The type of task whose count will be increased.\n   */\n  self.incTaskCount = incTaskCount;\n\n  /**\n   * Execute the specified callback when all pending tasks have been completed.\n   *\n   * If there are no pending tasks, the callback is executed immediately. You can optionally limit\n   * the tasks that will be waited for to a specific type, by passing a `taskType`.\n   *\n   * @param {function} callback - The function to call when there are no pending tasks.\n   * @param {string=} [taskType=ALL_TASKS_TYPE] - The type of tasks that will be waited for.\n   */\n  self.notifyWhenNoPendingTasks = notifyWhenNoPendingTasks;\n\n  function completeTask(fn, taskType) {\n    taskType = taskType || DEFAULT_TASK_TYPE;\n\n    try {\n      fn();\n    } finally {\n      decTaskCount(taskType);\n\n      var countForType = taskCounts[taskType];\n      var countForAll = taskCounts[ALL_TASKS_TYPE];\n\n      // If at least one of the queues (`ALL_TASKS_TYPE` or `taskType`) is empty, run callbacks.\n      if (!countForAll || !countForType) {\n        var getNextCallback = !countForAll ? getLastCallback : getLastCallbackForType;\n        var nextCb;\n\n        while ((nextCb = getNextCallback(taskType))) {\n          try {\n            nextCb();\n          } catch (e) {\n            log.error(e);\n          }\n        }\n      }\n    }\n  }\n\n  function decTaskCount(taskType) {\n    taskType = taskType || DEFAULT_TASK_TYPE;\n    if (taskCounts[taskType]) {\n      taskCounts[taskType]--;\n      taskCounts[ALL_TASKS_TYPE]--;\n    }\n  }\n\n  function getLastCallback() {\n    var cbInfo = taskCallbacks.pop();\n    return cbInfo && cbInfo.cb;\n  }\n\n  function getLastCallbackForType(taskType) {\n    for (var i = taskCallbacks.length - 1; i >= 0; --i) {\n      var cbInfo = taskCallbacks[i];\n      if (cbInfo.type === taskType) {\n        taskCallbacks.splice(i, 1);\n        return cbInfo.cb;\n      }\n    }\n  }\n\n  function incTaskCount(taskType) {\n    taskType = taskType || DEFAULT_TASK_TYPE;\n    taskCounts[taskType] = (taskCounts[taskType] || 0) + 1;\n    taskCounts[ALL_TASKS_TYPE] = (taskCounts[ALL_TASKS_TYPE] || 0) + 1;\n  }\n\n  function notifyWhenNoPendingTasks(callback, taskType) {\n    taskType = taskType || ALL_TASKS_TYPE;\n    if (!taskCounts[taskType]) {\n      callback();\n    } else {\n      taskCallbacks.push({type: taskType, cb: callback});\n    }\n  }\n}\n\nvar $templateRequestMinErr = minErr('$templateRequest');\n\n/**\n * @ngdoc provider\n * @name $templateRequestProvider\n * @this\n *\n * @description\n * Used to configure the options passed to the {@link $http} service when making a template request.\n *\n * For example, it can be used for specifying the \"Accept\" header that is sent to the server, when\n * requesting a template.\n */\nfunction $TemplateRequestProvider() {\n\n  var httpOptions;\n\n  /**\n   * @ngdoc method\n   * @name $templateRequestProvider#httpOptions\n   * @description\n   * The options to be passed to the {@link $http} service when making the request.\n   * You can use this to override options such as the \"Accept\" header for template requests.\n   *\n   * The {@link $templateRequest} will set the `cache` and the `transformResponse` properties of the\n   * options if not overridden here.\n   *\n   * @param {string=} value new value for the {@link $http} options.\n   * @returns {string|self} Returns the {@link $http} options when used as getter and self if used as setter.\n   */\n  this.httpOptions = function(val) {\n    if (val) {\n      httpOptions = val;\n      return this;\n    }\n    return httpOptions;\n  };\n\n  /**\n   * @ngdoc service\n   * @name $templateRequest\n   *\n   * @description\n   * The `$templateRequest` service runs security checks then downloads the provided template using\n   * `$http` and, upon success, stores the contents inside of `$templateCache`. If the HTTP request\n   * fails or the response data of the HTTP request is empty, a `$compile` error will be thrown (the\n   * exception can be thwarted by setting the 2nd parameter of the function to true). Note that the\n   * contents of `$templateCache` are trusted, so the call to `$sce.getTrustedUrl(tpl)` is omitted\n   * when `tpl` is of type string and `$templateCache` has the matching entry.\n   *\n   * If you want to pass custom options to the `$http` service, such as setting the Accept header you\n   * can configure this via {@link $templateRequestProvider#httpOptions}.\n   *\n   * `$templateRequest` is used internally by {@link $compile}, {@link ngRoute.$route}, and directives such\n   * as {@link ngInclude} to download and cache templates.\n   *\n   * 3rd party modules should use `$templateRequest` if their services or directives are loading\n   * templates.\n   *\n   * @param {string|TrustedResourceUrl} tpl The HTTP request template URL\n   * @param {boolean=} ignoreRequestError Whether or not to ignore the exception when the request fails or the template is empty\n   *\n   * @return {Promise} a promise for the HTTP response data of the given URL.\n   *\n   * @property {number} totalPendingRequests total amount of pending template requests being downloaded.\n   */\n  this.$get = ['$exceptionHandler', '$templateCache', '$http', '$q', '$sce',\n    function($exceptionHandler, $templateCache, $http, $q, $sce) {\n\n      function handleRequestFn(tpl, ignoreRequestError) {\n        handleRequestFn.totalPendingRequests++;\n\n        // We consider the template cache holds only trusted templates, so\n        // there's no need to go through adding the template again to the trusted\n        // resources for keys that already are included in there. This also makes\n        // AngularJS accept any script directive, no matter its name. However, we\n        // still need to unwrap trusted types.\n        if (!isString(tpl) || isUndefined($templateCache.get(tpl))) {\n          tpl = $sce.getTrustedResourceUrl(tpl);\n        }\n\n        var transformResponse = $http.defaults && $http.defaults.transformResponse;\n\n        if (isArray(transformResponse)) {\n          transformResponse = transformResponse.filter(function(transformer) {\n            return transformer !== defaultHttpResponseTransform;\n          });\n        } else if (transformResponse === defaultHttpResponseTransform) {\n          transformResponse = null;\n        }\n\n        return $http.get(tpl, extend({\n            cache: $templateCache,\n            transformResponse: transformResponse\n          }, httpOptions))\n          .finally(function() {\n            handleRequestFn.totalPendingRequests--;\n          })\n          .then(function(response) {\n            return $templateCache.put(tpl, response.data);\n          }, handleError);\n\n        function handleError(resp) {\n          if (!ignoreRequestError) {\n            resp = $templateRequestMinErr('tpload',\n                'Failed to load template: {0} (HTTP status: {1} {2})',\n                tpl, resp.status, resp.statusText);\n\n            $exceptionHandler(resp);\n          }\n\n          return $q.reject(resp);\n        }\n      }\n\n      handleRequestFn.totalPendingRequests = 0;\n\n      return handleRequestFn;\n    }\n  ];\n}\n\n/** @this */\nfunction $$TestabilityProvider() {\n  this.$get = ['$rootScope', '$browser', '$location',\n       function($rootScope,   $browser,   $location) {\n\n    /**\n     * @name $testability\n     *\n     * @description\n     * The private $$testability service provides a collection of methods for use when debugging\n     * or by automated test and debugging tools.\n     */\n    var testability = {};\n\n    /**\n     * @name $$testability#findBindings\n     *\n     * @description\n     * Returns an array of elements that are bound (via ng-bind or {{}})\n     * to expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The binding expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression. Filters and whitespace are ignored.\n     */\n    testability.findBindings = function(element, expression, opt_exactMatch) {\n      var bindings = element.getElementsByClassName('ng-binding');\n      var matches = [];\n      forEach(bindings, function(binding) {\n        var dataBinding = angular.element(binding).data('$binding');\n        if (dataBinding) {\n          forEach(dataBinding, function(bindingName) {\n            if (opt_exactMatch) {\n              var matcher = new RegExp('(^|\\\\s)' + escapeForRegexp(expression) + '(\\\\s|\\\\||$)');\n              if (matcher.test(bindingName)) {\n                matches.push(binding);\n              }\n            } else {\n              if (bindingName.indexOf(expression) !== -1) {\n                matches.push(binding);\n              }\n            }\n          });\n        }\n      });\n      return matches;\n    };\n\n    /**\n     * @name $$testability#findModels\n     *\n     * @description\n     * Returns an array of elements that are two-way found via ng-model to\n     * expressions matching the input.\n     *\n     * @param {Element} element The element root to search from.\n     * @param {string} expression The model expression to match.\n     * @param {boolean} opt_exactMatch If true, only returns exact matches\n     *     for the expression.\n     */\n    testability.findModels = function(element, expression, opt_exactMatch) {\n      var prefixes = ['ng-', 'data-ng-', 'ng\\\\:'];\n      for (var p = 0; p < prefixes.length; ++p) {\n        var attributeEquals = opt_exactMatch ? '=' : '*=';\n        var selector = '[' + prefixes[p] + 'model' + attributeEquals + '\"' + expression + '\"]';\n        var elements = element.querySelectorAll(selector);\n        if (elements.length) {\n          return elements;\n        }\n      }\n    };\n\n    /**\n     * @name $$testability#getLocation\n     *\n     * @description\n     * Shortcut for getting the location in a browser agnostic way. Returns\n     *     the path, search, and hash. (e.g. /path?a=b#hash)\n     */\n    testability.getLocation = function() {\n      return $location.url();\n    };\n\n    /**\n     * @name $$testability#setLocation\n     *\n     * @description\n     * Shortcut for navigating to a location without doing a full page reload.\n     *\n     * @param {string} url The location url (path, search and hash,\n     *     e.g. /path?a=b#hash) to go to.\n     */\n    testability.setLocation = function(url) {\n      if (url !== $location.url()) {\n        $location.url(url);\n        $rootScope.$digest();\n      }\n    };\n\n    /**\n     * @name $$testability#whenStable\n     *\n     * @description\n     * Calls the callback when all pending tasks are completed.\n     *\n     * Types of tasks waited for include:\n     * - Pending timeouts (via {@link $timeout}).\n     * - Pending HTTP requests (via {@link $http}).\n     * - In-progress route transitions (via {@link $route}).\n     * - Pending tasks scheduled via {@link $rootScope#$applyAsync}.\n     * - Pending tasks scheduled via {@link $rootScope#$evalAsync}.\n     *   These include tasks scheduled via `$evalAsync()` indirectly (such as {@link $q} promises).\n     *\n     * @param {function} callback\n     */\n    testability.whenStable = function(callback) {\n      $browser.notifyWhenNoOutstandingRequests(callback);\n    };\n\n    return testability;\n  }];\n}\n\nvar $timeoutMinErr = minErr('$timeout');\n\n/** @this */\nfunction $TimeoutProvider() {\n  this.$get = ['$rootScope', '$browser', '$q', '$$q', '$exceptionHandler',\n       function($rootScope,   $browser,   $q,   $$q,   $exceptionHandler) {\n\n    var deferreds = {};\n\n\n    /**\n     * @ngdoc service\n     * @name $timeout\n     *\n     * @description\n     * AngularJS's wrapper for `window.setTimeout`. The `fn` function is wrapped into a try/catch\n     * block and delegates any exceptions to\n     * {@link ng.$exceptionHandler $exceptionHandler} service.\n     *\n     * The return value of calling `$timeout` is a promise, which will be resolved when\n     * the delay has passed and the timeout function, if provided, is executed.\n     *\n     * To cancel a timeout request, call `$timeout.cancel(promise)`.\n     *\n     * In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to\n     * synchronously flush the queue of deferred functions.\n     *\n     * If you only want a promise that will be resolved after some specified delay\n     * then you can call `$timeout` without the `fn` function.\n     *\n     * @param {function()=} fn A function, whose execution should be delayed.\n     * @param {number=} [delay=0] Delay in milliseconds.\n     * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise\n     *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.\n     * @param {...*=} Pass additional parameters to the executed function.\n     * @returns {Promise} Promise that will be resolved when the timeout is reached. The promise\n     *   will be resolved with the return value of the `fn` function.\n     *\n     */\n    function timeout(fn, delay, invokeApply) {\n      if (!isFunction(fn)) {\n        invokeApply = delay;\n        delay = fn;\n        fn = noop;\n      }\n\n      var args = sliceArgs(arguments, 3),\n          skipApply = (isDefined(invokeApply) && !invokeApply),\n          deferred = (skipApply ? $$q : $q).defer(),\n          promise = deferred.promise,\n          timeoutId;\n\n      timeoutId = $browser.defer(function() {\n        try {\n          deferred.resolve(fn.apply(null, args));\n        } catch (e) {\n          deferred.reject(e);\n          $exceptionHandler(e);\n        } finally {\n          delete deferreds[promise.$$timeoutId];\n        }\n\n        if (!skipApply) $rootScope.$apply();\n      }, delay, '$timeout');\n\n      promise.$$timeoutId = timeoutId;\n      deferreds[timeoutId] = deferred;\n\n      return promise;\n    }\n\n\n    /**\n     * @ngdoc method\n     * @name $timeout#cancel\n     *\n     * @description\n     * Cancels a task associated with the `promise`. As a result of this, the promise will be\n     * resolved with a rejection.\n     *\n     * @param {Promise=} promise Promise returned by the `$timeout` function.\n     * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully\n     *   canceled.\n     */\n    timeout.cancel = function(promise) {\n      if (!promise) return false;\n\n      if (!promise.hasOwnProperty('$$timeoutId')) {\n        throw $timeoutMinErr('badprom',\n            '`$timeout.cancel()` called with a promise that was not generated by `$timeout()`.');\n      }\n\n      if (!deferreds.hasOwnProperty(promise.$$timeoutId)) return false;\n\n      var id = promise.$$timeoutId;\n      var deferred = deferreds[id];\n\n      // Timeout cancels should not report an unhandled promise.\n      markQExceptionHandled(deferred.promise);\n      deferred.reject('canceled');\n      delete deferreds[id];\n\n      return $browser.defer.cancel(id);\n    };\n\n    return timeout;\n  }];\n}\n\n// NOTE:  The usage of window and document instead of $window and $document here is\n// deliberate.  This service depends on the specific behavior of anchor nodes created by the\n// browser (resolving and parsing URLs) that is unlikely to be provided by mock objects and\n// cause us to break tests.  In addition, when the browser resolves a URL for XHR, it\n// doesn't know about mocked locations and resolves URLs to the real document - which is\n// exactly the behavior needed here.  There is little value is mocking these out for this\n// service.\nvar urlParsingNode = window.document.createElement('a');\nvar originUrl = urlResolve(window.location.href);\nvar baseUrlParsingNode;\n\nurlParsingNode.href = 'http://[::1]';\n\n// Support: IE 9-11 only, Edge 16-17 only (fixed in 18 Preview)\n// IE/Edge don't wrap IPv6 addresses' hostnames in square brackets\n// when parsed out of an anchor element.\nvar ipv6InBrackets = urlParsingNode.hostname === '[::1]';\n\n/**\n *\n * Implementation Notes for non-IE browsers\n * ----------------------------------------\n * Assigning a URL to the href property of an anchor DOM node, even one attached to the DOM,\n * results both in the normalizing and parsing of the URL.  Normalizing means that a relative\n * URL will be resolved into an absolute URL in the context of the application document.\n * Parsing means that the anchor node's host, hostname, protocol, port, pathname and related\n * properties are all populated to reflect the normalized URL.  This approach has wide\n * compatibility - Safari 1+, Mozilla 1+ etc.  See\n * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *\n * Implementation Notes for IE\n * ---------------------------\n * IE <= 10 normalizes the URL when assigned to the anchor node similar to the other\n * browsers.  However, the parsed components will not be set if the URL assigned did not specify\n * them.  (e.g. if you assign a.href = \"foo\", then a.protocol, a.host, etc. will be empty.)  We\n * work around that by performing the parsing in a 2nd step by taking a previously normalized\n * URL (e.g. by assigning to a.href) and assigning it a.href again.  This correctly populates the\n * properties such as protocol, hostname, port, etc.\n *\n * References:\n *   http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement\n *   http://www.aptana.com/reference/html/api/HTMLAnchorElement.html\n *   http://url.spec.whatwg.org/#urlutils\n *   https://github.com/angular/angular.js/pull/2902\n *   http://james.padolsey.com/javascript/parsing-urls-with-the-dom/\n *\n * @kind function\n * @param {string|object} url The URL to be parsed. If `url` is not a string, it will be returned\n *     unchanged.\n * @description Normalizes and parses a URL.\n * @returns {object} Returns the normalized URL as a dictionary.\n *\n *   | member name   | Description                                                            |\n *   |---------------|------------------------------------------------------------------------|\n *   | href          | A normalized version of the provided URL if it was not an absolute URL |\n *   | protocol      | The protocol without the trailing colon                                |\n *   | host          | The host and port (if the port is non-default) of the normalizedUrl    |\n *   | search        | The search params, minus the question mark                             |\n *   | hash          | The hash string, minus the hash symbol                                 |\n *   | hostname      | The hostname                                                           |\n *   | port          | The port, without \":\"                                                  |\n *   | pathname      | The pathname, beginning with \"/\"                                       |\n *\n */\nfunction urlResolve(url) {\n  if (!isString(url)) return url;\n\n  var href = url;\n\n  // Support: IE 9-11 only\n  if (msie) {\n    // Normalize before parse.  Refer Implementation Notes on why this is\n    // done in two steps on IE.\n    urlParsingNode.setAttribute('href', href);\n    href = urlParsingNode.href;\n  }\n\n  urlParsingNode.setAttribute('href', href);\n\n  var hostname = urlParsingNode.hostname;\n\n  if (!ipv6InBrackets && hostname.indexOf(':') > -1) {\n    hostname = '[' + hostname + ']';\n  }\n\n  return {\n    href: urlParsingNode.href,\n    protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n    host: urlParsingNode.host,\n    search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n    hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n    hostname: hostname,\n    port: urlParsingNode.port,\n    pathname: (urlParsingNode.pathname.charAt(0) === '/')\n      ? urlParsingNode.pathname\n      : '/' + urlParsingNode.pathname\n  };\n}\n\n/**\n * Parse a request URL and determine whether this is a same-origin request as the application\n * document.\n *\n * @param {string|object} requestUrl The url of the request as a string that will be resolved\n * or a parsed URL object.\n * @returns {boolean} Whether the request is for the same origin as the application document.\n */\nfunction urlIsSameOrigin(requestUrl) {\n  return urlsAreSameOrigin(requestUrl, originUrl);\n}\n\n/**\n * Parse a request URL and determine whether it is same-origin as the current document base URL.\n *\n * Note: The base URL is usually the same as the document location (`location.href`) but can\n * be overriden by using the `<base>` tag.\n *\n * @param {string|object} requestUrl The url of the request as a string that will be resolved\n * or a parsed URL object.\n * @returns {boolean} Whether the URL is same-origin as the document base URL.\n */\nfunction urlIsSameOriginAsBaseUrl(requestUrl) {\n  return urlsAreSameOrigin(requestUrl, getBaseUrl());\n}\n\n/**\n * Create a function that can check a URL's origin against a list of allowed/trusted origins.\n * The current location's origin is implicitly trusted.\n *\n * @param {string[]} trustedOriginUrls - A list of URLs (strings), whose origins are trusted.\n *\n * @returns {Function} - A function that receives a URL (string or parsed URL object) and returns\n *     whether it is of an allowed origin.\n */\nfunction urlIsAllowedOriginFactory(trustedOriginUrls) {\n  var parsedAllowedOriginUrls = [originUrl].concat(trustedOriginUrls.map(urlResolve));\n\n  /**\n   * Check whether the specified URL (string or parsed URL object) has an origin that is allowed\n   * based on a list of trusted-origin URLs. The current location's origin is implicitly\n   * trusted.\n   *\n   * @param {string|Object} requestUrl - The URL to be checked (provided as a string that will be\n   *     resolved or a parsed URL object).\n   *\n   * @returns {boolean} - Whether the specified URL is of an allowed origin.\n   */\n  return function urlIsAllowedOrigin(requestUrl) {\n    var parsedUrl = urlResolve(requestUrl);\n    return parsedAllowedOriginUrls.some(urlsAreSameOrigin.bind(null, parsedUrl));\n  };\n}\n\n/**\n * Determine if two URLs share the same origin.\n *\n * @param {string|Object} url1 - First URL to compare as a string or a normalized URL in the form of\n *     a dictionary object returned by `urlResolve()`.\n * @param {string|object} url2 - Second URL to compare as a string or a normalized URL in the form\n *     of a dictionary object returned by `urlResolve()`.\n *\n * @returns {boolean} - True if both URLs have the same origin, and false otherwise.\n */\nfunction urlsAreSameOrigin(url1, url2) {\n  url1 = urlResolve(url1);\n  url2 = urlResolve(url2);\n\n  return (url1.protocol === url2.protocol &&\n          url1.host === url2.host);\n}\n\n/**\n * Returns the current document base URL.\n * @returns {string}\n */\nfunction getBaseUrl() {\n  if (window.document.baseURI) {\n    return window.document.baseURI;\n  }\n\n  // `document.baseURI` is available everywhere except IE\n  if (!baseUrlParsingNode) {\n    baseUrlParsingNode = window.document.createElement('a');\n    baseUrlParsingNode.href = '.';\n\n    // Work-around for IE bug described in Implementation Notes. The fix in `urlResolve()` is not\n    // suitable here because we need to track changes to the base URL.\n    baseUrlParsingNode = baseUrlParsingNode.cloneNode(false);\n  }\n  return baseUrlParsingNode.href;\n}\n\n/**\n * @ngdoc service\n * @name $window\n * @this\n *\n * @description\n * A reference to the browser's `window` object. While `window`\n * is globally available in JavaScript, it causes testability problems, because\n * it is a global variable. In AngularJS we always refer to it through the\n * `$window` service, so it may be overridden, removed or mocked for testing.\n *\n * Expressions, like the one defined for the `ngClick` directive in the example\n * below, are evaluated with respect to the current scope.  Therefore, there is\n * no risk of inadvertently coding in a dependency on a global value in such an\n * expression.\n *\n * @example\n   <example module=\"windowExample\" name=\"window-service\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('windowExample', [])\n           .controller('ExampleController', ['$scope', '$window', function($scope, $window) {\n             $scope.greeting = 'Hello, World!';\n             $scope.doGreeting = function(greeting) {\n               $window.alert(greeting);\n             };\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"text\" ng-model=\"greeting\" aria-label=\"greeting\" />\n         <button ng-click=\"doGreeting(greeting)\">ALERT</button>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n      it('should display the greeting in the input box', function() {\n       element(by.model('greeting')).sendKeys('Hello, E2E Tests');\n       // If we click the button it will block the test runner\n       // element(':button').click();\n      });\n     </file>\n   </example>\n */\nfunction $WindowProvider() {\n  this.$get = valueFn(window);\n}\n\n/**\n * @name $$cookieReader\n * @requires $document\n *\n * @description\n * This is a private service for reading cookies used by $http and ngCookies\n *\n * @return {Object} a key/value map of the current cookies\n */\nfunction $$CookieReader($document) {\n  var rawDocument = $document[0] || {};\n  var lastCookies = {};\n  var lastCookieString = '';\n\n  function safeGetCookie(rawDocument) {\n    try {\n      return rawDocument.cookie || '';\n    } catch (e) {\n      return '';\n    }\n  }\n\n  function safeDecodeURIComponent(str) {\n    try {\n      return decodeURIComponent(str);\n    } catch (e) {\n      return str;\n    }\n  }\n\n  return function() {\n    var cookieArray, cookie, i, index, name;\n    var currentCookieString = safeGetCookie(rawDocument);\n\n    if (currentCookieString !== lastCookieString) {\n      lastCookieString = currentCookieString;\n      cookieArray = lastCookieString.split('; ');\n      lastCookies = {};\n\n      for (i = 0; i < cookieArray.length; i++) {\n        cookie = cookieArray[i];\n        index = cookie.indexOf('=');\n        if (index > 0) { //ignore nameless cookies\n          name = safeDecodeURIComponent(cookie.substring(0, index));\n          // the first value that is seen for a cookie is the most\n          // specific one.  values for the same cookie name that\n          // follow are for less specific paths.\n          if (isUndefined(lastCookies[name])) {\n            lastCookies[name] = safeDecodeURIComponent(cookie.substring(index + 1));\n          }\n        }\n      }\n    }\n    return lastCookies;\n  };\n}\n\n$$CookieReader.$inject = ['$document'];\n\n/** @this */\nfunction $$CookieReaderProvider() {\n  this.$get = $$CookieReader;\n}\n\n/* global currencyFilter: true,\n dateFilter: true,\n filterFilter: true,\n jsonFilter: true,\n limitToFilter: true,\n lowercaseFilter: true,\n numberFilter: true,\n orderByFilter: true,\n uppercaseFilter: true,\n */\n\n/**\n * @ngdoc provider\n * @name $filterProvider\n * @description\n *\n * Filters are just functions which transform input to an output. However filters need to be\n * Dependency Injected. To achieve this a filter definition consists of a factory function which is\n * annotated with dependencies and is responsible for creating a filter function.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Filter names must be valid AngularJS {@link expression} identifiers, such as `uppercase` or `orderBy`.\n * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n * (`myapp_subsection_filterx`).\n * </div>\n *\n * ```js\n *   // Filter registration\n *   function MyModule($provide, $filterProvider) {\n *     // create a service to demonstrate injection (not always needed)\n *     $provide.value('greet', function(name){\n *       return 'Hello ' + name + '!';\n *     });\n *\n *     // register a filter factory which uses the\n *     // greet service to demonstrate DI.\n *     $filterProvider.register('greet', function(greet){\n *       // return the filter function which uses the greet service\n *       // to generate salutation\n *       return function(text) {\n *         // filters need to be forgiving so check input validity\n *         return text && greet(text) || text;\n *       };\n *     });\n *   }\n * ```\n *\n * The filter function is registered with the `$injector` under the filter name suffix with\n * `Filter`.\n *\n * ```js\n *   it('should be the same instance', inject(\n *     function($filterProvider) {\n *       $filterProvider.register('reverse', function(){\n *         return ...;\n *       });\n *     },\n *     function($filter, reverseFilter) {\n *       expect($filter('reverse')).toBe(reverseFilter);\n *     });\n * ```\n *\n *\n * For more information about how AngularJS filters work, and how to create your own filters, see\n * {@link guide/filter Filters} in the AngularJS Developer Guide.\n */\n\n/**\n * @ngdoc service\n * @name $filter\n * @kind function\n * @description\n * Filters are used for formatting data displayed to the user.\n *\n * They can be used in view templates, controllers or services. AngularJS comes\n * with a collection of [built-in filters](api/ng/filter), but it is easy to\n * define your own as well.\n *\n * The general syntax in templates is as follows:\n *\n * ```html\n * {{ expression [| filter_name[:parameter_value] ... ] }}\n * ```\n *\n * @param {String} name Name of the filter function to retrieve\n * @return {Function} the filter function\n * @example\n   <example name=\"$filter\" module=\"filterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"MainCtrl\">\n        <h3>{{ originalText }}</h3>\n        <h3>{{ filteredText }}</h3>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n      angular.module('filterExample', [])\n      .controller('MainCtrl', function($scope, $filter) {\n        $scope.originalText = 'hello';\n        $scope.filteredText = $filter('uppercase')($scope.originalText);\n      });\n     </file>\n   </example>\n  */\n$FilterProvider.$inject = ['$provide'];\n/** @this */\nfunction $FilterProvider($provide) {\n  var suffix = 'Filter';\n\n  /**\n   * @ngdoc method\n   * @name $filterProvider#register\n   * @param {string|Object} name Name of the filter function, or an object map of filters where\n   *    the keys are the filter names and the values are the filter factories.\n   *\n   *    <div class=\"alert alert-warning\">\n   *    **Note:** Filter names must be valid AngularJS {@link expression} identifiers, such as `uppercase` or `orderBy`.\n   *    Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace\n   *    your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores\n   *    (`myapp_subsection_filterx`).\n   *    </div>\n    * @param {Function} factory If the first argument was a string, a factory function for the filter to be registered.\n   * @returns {Object} Registered filter instance, or if a map of filters was provided then a map\n   *    of the registered filter instances.\n   */\n  function register(name, factory) {\n    if (isObject(name)) {\n      var filters = {};\n      forEach(name, function(filter, key) {\n        filters[key] = register(key, filter);\n      });\n      return filters;\n    } else {\n      return $provide.factory(name + suffix, factory);\n    }\n  }\n  this.register = register;\n\n  this.$get = ['$injector', function($injector) {\n    return function(name) {\n      return $injector.get(name + suffix);\n    };\n  }];\n\n  ////////////////////////////////////////\n\n  /* global\n    currencyFilter: false,\n    dateFilter: false,\n    filterFilter: false,\n    jsonFilter: false,\n    limitToFilter: false,\n    lowercaseFilter: false,\n    numberFilter: false,\n    orderByFilter: false,\n    uppercaseFilter: false\n  */\n\n  register('currency', currencyFilter);\n  register('date', dateFilter);\n  register('filter', filterFilter);\n  register('json', jsonFilter);\n  register('limitTo', limitToFilter);\n  register('lowercase', lowercaseFilter);\n  register('number', numberFilter);\n  register('orderBy', orderByFilter);\n  register('uppercase', uppercaseFilter);\n}\n\n/**\n * @ngdoc filter\n * @name filter\n * @kind function\n *\n * @description\n * Selects a subset of items from `array` and returns it as a new array.\n *\n * @param {Array} array The source array.\n * <div class=\"alert alert-info\">\n *   **Note**: If the array contains objects that reference themselves, filtering is not possible.\n * </div>\n * @param {string|Object|function()} expression The predicate to be used for selecting items from\n *   `array`.\n *\n *   Can be one of:\n *\n *   - `string`: The string is used for matching against the contents of the `array`. All strings or\n *     objects with string properties in `array` that match this string will be returned. This also\n *     applies to nested object properties.\n *     The predicate can be negated by prefixing the string with `!`.\n *\n *   - `Object`: A pattern object can be used to filter specific properties on objects contained\n *     by `array`. For example `{name:\"M\", phone:\"1\"}` predicate will return an array of items\n *     which have property `name` containing \"M\" and property `phone` containing \"1\". A special\n *     property name (`$` by default) can be used (e.g. as in `{$: \"text\"}`) to accept a match\n *     against any property of the object or its nested object properties. That's equivalent to the\n *     simple substring match with a `string` as described above. The special property name can be\n *     overwritten, using the `anyPropertyKey` parameter.\n *     The predicate can be negated by prefixing the string with `!`.\n *     For example `{name: \"!M\"}` predicate will return an array of items which have property `name`\n *     not containing \"M\".\n *\n *     Note that a named property will match properties on the same level only, while the special\n *     `$` property will match properties on the same level or deeper. E.g. an array item like\n *     `{name: {first: 'John', last: 'Doe'}}` will **not** be matched by `{name: 'John'}`, but\n *     **will** be matched by `{$: 'John'}`.\n *\n *   - `function(value, index, array)`: A predicate function can be used to write arbitrary filters.\n *     The function is called for each element of the array, with the element, its index, and\n *     the entire array itself as arguments.\n *\n *     The final result is an array of those elements that the predicate returned true for.\n *\n * @param {function(actual, expected)|true|false} [comparator] Comparator which is used in\n *     determining if values retrieved using `expression` (when it is not a function) should be\n *     considered a match based on the expected value (from the filter expression) and actual\n *     value (from the object in the array).\n *\n *   Can be one of:\n *\n *   - `function(actual, expected)`:\n *     The function will be given the object value and the predicate value to compare and\n *     should return true if both values should be considered equal.\n *\n *   - `true`: A shorthand for `function(actual, expected) { return angular.equals(actual, expected)}`.\n *     This is essentially strict comparison of expected and actual.\n *\n *   - `false`: A short hand for a function which will look for a substring match in a case\n *     insensitive way. Primitive values are converted to strings. Objects are not compared against\n *     primitives, unless they have a custom `toString` method (e.g. `Date` objects).\n *\n *\n *   Defaults to `false`.\n *\n * @param {string} [anyPropertyKey] The special property name that matches against any property.\n *     By default `$`.\n *\n * @example\n   <example name=\"filter-filter\">\n     <file name=\"index.html\">\n       <div ng-init=\"friends = [{name:'John', phone:'555-1276'},\n                                {name:'Mary', phone:'800-BIG-MARY'},\n                                {name:'Mike', phone:'555-4321'},\n                                {name:'Adam', phone:'555-5678'},\n                                {name:'Julie', phone:'555-8765'},\n                                {name:'Juliette', phone:'555-5678'}]\"></div>\n\n       <label>Search: <input ng-model=\"searchText\"></label>\n       <table id=\"searchTextResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friend in friends | filter:searchText\">\n           <td>{{friend.name}}</td>\n           <td>{{friend.phone}}</td>\n         </tr>\n       </table>\n       <hr>\n       <label>Any: <input ng-model=\"search.$\"></label> <br>\n       <label>Name only <input ng-model=\"search.name\"></label><br>\n       <label>Phone only <input ng-model=\"search.phone\"></label><br>\n       <label>Equality <input type=\"checkbox\" ng-model=\"strict\"></label><br>\n       <table id=\"searchObjResults\">\n         <tr><th>Name</th><th>Phone</th></tr>\n         <tr ng-repeat=\"friendObj in friends | filter:search:strict\">\n           <td>{{friendObj.name}}</td>\n           <td>{{friendObj.phone}}</td>\n         </tr>\n       </table>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var expectFriendNames = function(expectedNames, key) {\n         element.all(by.repeater(key + ' in friends').column(key + '.name')).then(function(arr) {\n           arr.forEach(function(wd, i) {\n             expect(wd.getText()).toMatch(expectedNames[i]);\n           });\n         });\n       };\n\n       it('should search across all fields when filtering with a string', function() {\n         var searchText = element(by.model('searchText'));\n         searchText.clear();\n         searchText.sendKeys('m');\n         expectFriendNames(['Mary', 'Mike', 'Adam'], 'friend');\n\n         searchText.clear();\n         searchText.sendKeys('76');\n         expectFriendNames(['John', 'Julie'], 'friend');\n       });\n\n       it('should search in specific fields when filtering with a predicate object', function() {\n         var searchAny = element(by.model('search.$'));\n         searchAny.clear();\n         searchAny.sendKeys('i');\n         expectFriendNames(['Mary', 'Mike', 'Julie', 'Juliette'], 'friendObj');\n       });\n       it('should use a equal comparison when comparator is true', function() {\n         var searchName = element(by.model('search.name'));\n         var strict = element(by.model('strict'));\n         searchName.clear();\n         searchName.sendKeys('Julie');\n         strict.click();\n         expectFriendNames(['Julie'], 'friendObj');\n       });\n     </file>\n   </example>\n */\n\nfunction filterFilter() {\n  return function(array, expression, comparator, anyPropertyKey) {\n    if (!isArrayLike(array)) {\n      if (array == null) {\n        return array;\n      } else {\n        throw minErr('filter')('notarray', 'Expected array but received: {0}', array);\n      }\n    }\n\n    anyPropertyKey = anyPropertyKey || '$';\n    var expressionType = getTypeForFilter(expression);\n    var predicateFn;\n    var matchAgainstAnyProp;\n\n    switch (expressionType) {\n      case 'function':\n        predicateFn = expression;\n        break;\n      case 'boolean':\n      case 'null':\n      case 'number':\n      case 'string':\n        matchAgainstAnyProp = true;\n        // falls through\n      case 'object':\n        predicateFn = createPredicateFn(expression, comparator, anyPropertyKey, matchAgainstAnyProp);\n        break;\n      default:\n        return array;\n    }\n\n    return Array.prototype.filter.call(array, predicateFn);\n  };\n}\n\n// Helper functions for `filterFilter`\nfunction createPredicateFn(expression, comparator, anyPropertyKey, matchAgainstAnyProp) {\n  var shouldMatchPrimitives = isObject(expression) && (anyPropertyKey in expression);\n  var predicateFn;\n\n  if (comparator === true) {\n    comparator = equals;\n  } else if (!isFunction(comparator)) {\n    comparator = function(actual, expected) {\n      if (isUndefined(actual)) {\n        // No substring matching against `undefined`\n        return false;\n      }\n      if ((actual === null) || (expected === null)) {\n        // No substring matching against `null`; only match against `null`\n        return actual === expected;\n      }\n      if (isObject(expected) || (isObject(actual) && !hasCustomToString(actual))) {\n        // Should not compare primitives against objects, unless they have custom `toString` method\n        return false;\n      }\n\n      actual = lowercase('' + actual);\n      expected = lowercase('' + expected);\n      return actual.indexOf(expected) !== -1;\n    };\n  }\n\n  predicateFn = function(item) {\n    if (shouldMatchPrimitives && !isObject(item)) {\n      return deepCompare(item, expression[anyPropertyKey], comparator, anyPropertyKey, false);\n    }\n    return deepCompare(item, expression, comparator, anyPropertyKey, matchAgainstAnyProp);\n  };\n\n  return predicateFn;\n}\n\nfunction deepCompare(actual, expected, comparator, anyPropertyKey, matchAgainstAnyProp, dontMatchWholeObject) {\n  var actualType = getTypeForFilter(actual);\n  var expectedType = getTypeForFilter(expected);\n\n  if ((expectedType === 'string') && (expected.charAt(0) === '!')) {\n    return !deepCompare(actual, expected.substring(1), comparator, anyPropertyKey, matchAgainstAnyProp);\n  } else if (isArray(actual)) {\n    // In case `actual` is an array, consider it a match\n    // if ANY of it's items matches `expected`\n    return actual.some(function(item) {\n      return deepCompare(item, expected, comparator, anyPropertyKey, matchAgainstAnyProp);\n    });\n  }\n\n  switch (actualType) {\n    case 'object':\n      var key;\n      if (matchAgainstAnyProp) {\n        for (key in actual) {\n          // Under certain, rare, circumstances, key may not be a string and `charAt` will be undefined\n          // See: https://github.com/angular/angular.js/issues/15644\n          if (key.charAt && (key.charAt(0) !== '$') &&\n              deepCompare(actual[key], expected, comparator, anyPropertyKey, true)) {\n            return true;\n          }\n        }\n        return dontMatchWholeObject ? false : deepCompare(actual, expected, comparator, anyPropertyKey, false);\n      } else if (expectedType === 'object') {\n        for (key in expected) {\n          var expectedVal = expected[key];\n          if (isFunction(expectedVal) || isUndefined(expectedVal)) {\n            continue;\n          }\n\n          var matchAnyProperty = key === anyPropertyKey;\n          var actualVal = matchAnyProperty ? actual : actual[key];\n          if (!deepCompare(actualVal, expectedVal, comparator, anyPropertyKey, matchAnyProperty, matchAnyProperty)) {\n            return false;\n          }\n        }\n        return true;\n      } else {\n        return comparator(actual, expected);\n      }\n    case 'function':\n      return false;\n    default:\n      return comparator(actual, expected);\n  }\n}\n\n// Used for easily differentiating between `null` and actual `object`\nfunction getTypeForFilter(val) {\n  return (val === null) ? 'null' : typeof val;\n}\n\nvar MAX_DIGITS = 22;\nvar DECIMAL_SEP = '.';\nvar ZERO_CHAR = '0';\n\n/**\n * @ngdoc filter\n * @name currency\n * @kind function\n *\n * @description\n * Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default\n * symbol for current locale is used.\n *\n * @param {number} amount Input to filter.\n * @param {string=} symbol Currency symbol or identifier to be displayed.\n * @param {number=} fractionSize Number of decimal places to round the amount to, defaults to default max fraction size for current locale\n * @returns {string} Formatted number.\n *\n *\n * @example\n   <example module=\"currencyExample\" name=\"currency-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('currencyExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.amount = 1234.56;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <input type=\"number\" ng-model=\"amount\" aria-label=\"amount\"> <br>\n         default currency symbol ($): <span id=\"currency-default\">{{amount | currency}}</span><br>\n         custom currency identifier (USD$): <span id=\"currency-custom\">{{amount | currency:\"USD$\"}}</span><br>\n         no fractions (0): <span id=\"currency-no-fractions\">{{amount | currency:\"USD$\":0}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should init with 1234.56', function() {\n         expect(element(by.id('currency-default')).getText()).toBe('$1,234.56');\n         expect(element(by.id('currency-custom')).getText()).toBe('USD$1,234.56');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('USD$1,235');\n       });\n       it('should update', function() {\n         if (browser.params.browser === 'safari') {\n           // Safari does not understand the minus key. See\n           // https://github.com/angular/protractor/issues/481\n           return;\n         }\n         element(by.model('amount')).clear();\n         element(by.model('amount')).sendKeys('-1234');\n         expect(element(by.id('currency-default')).getText()).toBe('-$1,234.00');\n         expect(element(by.id('currency-custom')).getText()).toBe('-USD$1,234.00');\n         expect(element(by.id('currency-no-fractions')).getText()).toBe('-USD$1,234');\n       });\n     </file>\n   </example>\n */\ncurrencyFilter.$inject = ['$locale'];\nfunction currencyFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(amount, currencySymbol, fractionSize) {\n    if (isUndefined(currencySymbol)) {\n      currencySymbol = formats.CURRENCY_SYM;\n    }\n\n    if (isUndefined(fractionSize)) {\n      fractionSize = formats.PATTERNS[1].maxFrac;\n    }\n\n    // If the currency symbol is empty, trim whitespace around the symbol\n    var currencySymbolRe = !currencySymbol ? /\\s*\\u00A4\\s*/g : /\\u00A4/g;\n\n    // if null or undefined pass it through\n    return (amount == null)\n        ? amount\n        : formatNumber(amount, formats.PATTERNS[1], formats.GROUP_SEP, formats.DECIMAL_SEP, fractionSize).\n            replace(currencySymbolRe, currencySymbol);\n  };\n}\n\n/**\n * @ngdoc filter\n * @name number\n * @kind function\n *\n * @description\n * Formats a number as text.\n *\n * If the input is null or undefined, it will just be returned.\n * If the input is infinite (Infinity or -Infinity), the Infinity symbol '∞' or '-∞' is returned, respectively.\n * If the input is not a number an empty string is returned.\n *\n *\n * @param {number|string} number Number to format.\n * @param {(number|string)=} fractionSize Number of decimal places to round the number to.\n * If this is not provided then the fraction size is computed from the current locale's number\n * formatting pattern. In the case of the default locale, it will be 3.\n * @returns {string} Number rounded to `fractionSize` appropriately formatted based on the current\n *                   locale (e.g., in the en_US locale it will have \".\" as the decimal separator and\n *                   include \",\" group separators after each third digit).\n *\n * @example\n   <example module=\"numberFilterExample\" name=\"number-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('numberFilterExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.val = 1234.56789;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>Enter number: <input ng-model='val'></label><br>\n         Default formatting: <span id='number-default'>{{val | number}}</span><br>\n         No fractions: <span>{{val | number:0}}</span><br>\n         Negative number: <span>{{-val | number:4}}</span>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format numbers', function() {\n         expect(element(by.id('number-default')).getText()).toBe('1,234.568');\n         expect(element(by.binding('val | number:0')).getText()).toBe('1,235');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-1,234.5679');\n       });\n\n       it('should update', function() {\n         element(by.model('val')).clear();\n         element(by.model('val')).sendKeys('3374.333');\n         expect(element(by.id('number-default')).getText()).toBe('3,374.333');\n         expect(element(by.binding('val | number:0')).getText()).toBe('3,374');\n         expect(element(by.binding('-val | number:4')).getText()).toBe('-3,374.3330');\n      });\n     </file>\n   </example>\n */\nnumberFilter.$inject = ['$locale'];\nfunction numberFilter($locale) {\n  var formats = $locale.NUMBER_FORMATS;\n  return function(number, fractionSize) {\n\n    // if null or undefined pass it through\n    return (number == null)\n        ? number\n        : formatNumber(number, formats.PATTERNS[0], formats.GROUP_SEP, formats.DECIMAL_SEP,\n                       fractionSize);\n  };\n}\n\n/**\n * Parse a number (as a string) into three components that can be used\n * for formatting the number.\n *\n * (Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/)\n *\n * @param  {string} numStr The number to parse\n * @return {object} An object describing this number, containing the following keys:\n *  - d : an array of digits containing leading zeros as necessary\n *  - i : the number of the digits in `d` that are to the left of the decimal point\n *  - e : the exponent for numbers that would need more than `MAX_DIGITS` digits in `d`\n *\n */\nfunction parse(numStr) {\n  var exponent = 0, digits, numberOfIntegerDigits;\n  var i, j, zeros;\n\n  // Decimal point?\n  if ((numberOfIntegerDigits = numStr.indexOf(DECIMAL_SEP)) > -1) {\n    numStr = numStr.replace(DECIMAL_SEP, '');\n  }\n\n  // Exponential form?\n  if ((i = numStr.search(/e/i)) > 0) {\n    // Work out the exponent.\n    if (numberOfIntegerDigits < 0) numberOfIntegerDigits = i;\n    numberOfIntegerDigits += +numStr.slice(i + 1);\n    numStr = numStr.substring(0, i);\n  } else if (numberOfIntegerDigits < 0) {\n    // There was no decimal point or exponent so it is an integer.\n    numberOfIntegerDigits = numStr.length;\n  }\n\n  // Count the number of leading zeros.\n  for (i = 0; numStr.charAt(i) === ZERO_CHAR; i++) { /* empty */ }\n\n  if (i === (zeros = numStr.length)) {\n    // The digits are all zero.\n    digits = [0];\n    numberOfIntegerDigits = 1;\n  } else {\n    // Count the number of trailing zeros\n    zeros--;\n    while (numStr.charAt(zeros) === ZERO_CHAR) zeros--;\n\n    // Trailing zeros are insignificant so ignore them\n    numberOfIntegerDigits -= i;\n    digits = [];\n    // Convert string to array of digits without leading/trailing zeros.\n    for (j = 0; i <= zeros; i++, j++) {\n      digits[j] = +numStr.charAt(i);\n    }\n  }\n\n  // If the number overflows the maximum allowed digits then use an exponent.\n  if (numberOfIntegerDigits > MAX_DIGITS) {\n    digits = digits.splice(0, MAX_DIGITS - 1);\n    exponent = numberOfIntegerDigits - 1;\n    numberOfIntegerDigits = 1;\n  }\n\n  return { d: digits, e: exponent, i: numberOfIntegerDigits };\n}\n\n/**\n * Round the parsed number to the specified number of decimal places\n * This function changed the parsedNumber in-place\n */\nfunction roundNumber(parsedNumber, fractionSize, minFrac, maxFrac) {\n    var digits = parsedNumber.d;\n    var fractionLen = digits.length - parsedNumber.i;\n\n    // determine fractionSize if it is not specified; `+fractionSize` converts it to a number\n    fractionSize = (isUndefined(fractionSize)) ? Math.min(Math.max(minFrac, fractionLen), maxFrac) : +fractionSize;\n\n    // The index of the digit to where rounding is to occur\n    var roundAt = fractionSize + parsedNumber.i;\n    var digit = digits[roundAt];\n\n    if (roundAt > 0) {\n      // Drop fractional digits beyond `roundAt`\n      digits.splice(Math.max(parsedNumber.i, roundAt));\n\n      // Set non-fractional digits beyond `roundAt` to 0\n      for (var j = roundAt; j < digits.length; j++) {\n        digits[j] = 0;\n      }\n    } else {\n      // We rounded to zero so reset the parsedNumber\n      fractionLen = Math.max(0, fractionLen);\n      parsedNumber.i = 1;\n      digits.length = Math.max(1, roundAt = fractionSize + 1);\n      digits[0] = 0;\n      for (var i = 1; i < roundAt; i++) digits[i] = 0;\n    }\n\n    if (digit >= 5) {\n      if (roundAt - 1 < 0) {\n        for (var k = 0; k > roundAt; k--) {\n          digits.unshift(0);\n          parsedNumber.i++;\n        }\n        digits.unshift(1);\n        parsedNumber.i++;\n      } else {\n        digits[roundAt - 1]++;\n      }\n    }\n\n    // Pad out with zeros to get the required fraction length\n    for (; fractionLen < Math.max(0, fractionSize); fractionLen++) digits.push(0);\n\n\n    // Do any carrying, e.g. a digit was rounded up to 10\n    var carry = digits.reduceRight(function(carry, d, i, digits) {\n      d = d + carry;\n      digits[i] = d % 10;\n      return Math.floor(d / 10);\n    }, 0);\n    if (carry) {\n      digits.unshift(carry);\n      parsedNumber.i++;\n    }\n}\n\n/**\n * Format a number into a string\n * @param  {number} number       The number to format\n * @param  {{\n *           minFrac, // the minimum number of digits required in the fraction part of the number\n *           maxFrac, // the maximum number of digits required in the fraction part of the number\n *           gSize,   // number of digits in each group of separated digits\n *           lgSize,  // number of digits in the last group of digits before the decimal separator\n *           negPre,  // the string to go in front of a negative number (e.g. `-` or `(`))\n *           posPre,  // the string to go in front of a positive number\n *           negSuf,  // the string to go after a negative number (e.g. `)`)\n *           posSuf   // the string to go after a positive number\n *         }} pattern\n * @param  {string} groupSep     The string to separate groups of number (e.g. `,`)\n * @param  {string} decimalSep   The string to act as the decimal separator (e.g. `.`)\n * @param  {[type]} fractionSize The size of the fractional part of the number\n * @return {string}              The number formatted as a string\n */\nfunction formatNumber(number, pattern, groupSep, decimalSep, fractionSize) {\n\n  if (!(isString(number) || isNumber(number)) || isNaN(number)) return '';\n\n  var isInfinity = !isFinite(number);\n  var isZero = false;\n  var numStr = Math.abs(number) + '',\n      formattedText = '',\n      parsedNumber;\n\n  if (isInfinity) {\n    formattedText = '\\u221e';\n  } else {\n    parsedNumber = parse(numStr);\n\n    roundNumber(parsedNumber, fractionSize, pattern.minFrac, pattern.maxFrac);\n\n    var digits = parsedNumber.d;\n    var integerLen = parsedNumber.i;\n    var exponent = parsedNumber.e;\n    var decimals = [];\n    isZero = digits.reduce(function(isZero, d) { return isZero && !d; }, true);\n\n    // pad zeros for small numbers\n    while (integerLen < 0) {\n      digits.unshift(0);\n      integerLen++;\n    }\n\n    // extract decimals digits\n    if (integerLen > 0) {\n      decimals = digits.splice(integerLen, digits.length);\n    } else {\n      decimals = digits;\n      digits = [0];\n    }\n\n    // format the integer digits with grouping separators\n    var groups = [];\n    if (digits.length >= pattern.lgSize) {\n      groups.unshift(digits.splice(-pattern.lgSize, digits.length).join(''));\n    }\n    while (digits.length > pattern.gSize) {\n      groups.unshift(digits.splice(-pattern.gSize, digits.length).join(''));\n    }\n    if (digits.length) {\n      groups.unshift(digits.join(''));\n    }\n    formattedText = groups.join(groupSep);\n\n    // append the decimal digits\n    if (decimals.length) {\n      formattedText += decimalSep + decimals.join('');\n    }\n\n    if (exponent) {\n      formattedText += 'e+' + exponent;\n    }\n  }\n  if (number < 0 && !isZero) {\n    return pattern.negPre + formattedText + pattern.negSuf;\n  } else {\n    return pattern.posPre + formattedText + pattern.posSuf;\n  }\n}\n\nfunction padNumber(num, digits, trim, negWrap) {\n  var neg = '';\n  if (num < 0 || (negWrap && num <= 0)) {\n    if (negWrap) {\n      num = -num + 1;\n    } else {\n      num = -num;\n      neg = '-';\n    }\n  }\n  num = '' + num;\n  while (num.length < digits) num = ZERO_CHAR + num;\n  if (trim) {\n    num = num.substr(num.length - digits);\n  }\n  return neg + num;\n}\n\n\nfunction dateGetter(name, size, offset, trim, negWrap) {\n  offset = offset || 0;\n  return function(date) {\n    var value = date['get' + name]();\n    if (offset > 0 || value > -offset) {\n      value += offset;\n    }\n    if (value === 0 && offset === -12) value = 12;\n    return padNumber(value, size, trim, negWrap);\n  };\n}\n\nfunction dateStrGetter(name, shortForm, standAlone) {\n  return function(date, formats) {\n    var value = date['get' + name]();\n    var propPrefix = (standAlone ? 'STANDALONE' : '') + (shortForm ? 'SHORT' : '');\n    var get = uppercase(propPrefix + name);\n\n    return formats[get][value];\n  };\n}\n\nfunction timeZoneGetter(date, formats, offset) {\n  var zone = -1 * offset;\n  var paddedZone = (zone >= 0) ? '+' : '';\n\n  paddedZone += padNumber(Math[zone > 0 ? 'floor' : 'ceil'](zone / 60), 2) +\n                padNumber(Math.abs(zone % 60), 2);\n\n  return paddedZone;\n}\n\nfunction getFirstThursdayOfYear(year) {\n    // 0 = index of January\n    var dayOfWeekOnFirst = (new Date(year, 0, 1)).getDay();\n    // 4 = index of Thursday (+1 to account for 1st = 5)\n    // 11 = index of *next* Thursday (+1 account for 1st = 12)\n    return new Date(year, 0, ((dayOfWeekOnFirst <= 4) ? 5 : 12) - dayOfWeekOnFirst);\n}\n\nfunction getThursdayThisWeek(datetime) {\n    return new Date(datetime.getFullYear(), datetime.getMonth(),\n      // 4 = index of Thursday\n      datetime.getDate() + (4 - datetime.getDay()));\n}\n\nfunction weekGetter(size) {\n   return function(date) {\n      var firstThurs = getFirstThursdayOfYear(date.getFullYear()),\n         thisThurs = getThursdayThisWeek(date);\n\n      var diff = +thisThurs - +firstThurs,\n         result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week\n\n      return padNumber(result, size);\n   };\n}\n\nfunction ampmGetter(date, formats) {\n  return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1];\n}\n\nfunction eraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERAS[0] : formats.ERAS[1];\n}\n\nfunction longEraGetter(date, formats) {\n  return date.getFullYear() <= 0 ? formats.ERANAMES[0] : formats.ERANAMES[1];\n}\n\nvar DATE_FORMATS = {\n  yyyy: dateGetter('FullYear', 4, 0, false, true),\n    yy: dateGetter('FullYear', 2, 0, true, true),\n     y: dateGetter('FullYear', 1, 0, false, true),\n  MMMM: dateStrGetter('Month'),\n   MMM: dateStrGetter('Month', true),\n    MM: dateGetter('Month', 2, 1),\n     M: dateGetter('Month', 1, 1),\n  LLLL: dateStrGetter('Month', false, true),\n    dd: dateGetter('Date', 2),\n     d: dateGetter('Date', 1),\n    HH: dateGetter('Hours', 2),\n     H: dateGetter('Hours', 1),\n    hh: dateGetter('Hours', 2, -12),\n     h: dateGetter('Hours', 1, -12),\n    mm: dateGetter('Minutes', 2),\n     m: dateGetter('Minutes', 1),\n    ss: dateGetter('Seconds', 2),\n     s: dateGetter('Seconds', 1),\n     // while ISO 8601 requires fractions to be prefixed with `.` or `,`\n     // we can be just safely rely on using `sss` since we currently don't support single or two digit fractions\n   sss: dateGetter('Milliseconds', 3),\n  EEEE: dateStrGetter('Day'),\n   EEE: dateStrGetter('Day', true),\n     a: ampmGetter,\n     Z: timeZoneGetter,\n    ww: weekGetter(2),\n     w: weekGetter(1),\n     G: eraGetter,\n     GG: eraGetter,\n     GGG: eraGetter,\n     GGGG: longEraGetter\n};\n\nvar DATE_FORMATS_SPLIT = /((?:[^yMLdHhmsaZEwG']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|L+|d+|H+|h+|m+|s+|a|Z|G+|w+))([\\s\\S]*)/,\n    NUMBER_STRING = /^-?\\d+$/;\n\n/**\n * @ngdoc filter\n * @name date\n * @kind function\n *\n * @description\n *   Formats `date` to a string based on the requested `format`.\n *\n *   `format` string can be composed of the following elements:\n *\n *   * `'yyyy'`: 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)\n *   * `'yy'`: 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)\n *   * `'y'`: 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)\n *   * `'MMMM'`: Month in year (January-December)\n *   * `'MMM'`: Month in year (Jan-Dec)\n *   * `'MM'`: Month in year, padded (01-12)\n *   * `'M'`: Month in year (1-12)\n *   * `'LLLL'`: Stand-alone month in year (January-December)\n *   * `'dd'`: Day in month, padded (01-31)\n *   * `'d'`: Day in month (1-31)\n *   * `'EEEE'`: Day in Week,(Sunday-Saturday)\n *   * `'EEE'`: Day in Week, (Sun-Sat)\n *   * `'HH'`: Hour in day, padded (00-23)\n *   * `'H'`: Hour in day (0-23)\n *   * `'hh'`: Hour in AM/PM, padded (01-12)\n *   * `'h'`: Hour in AM/PM, (1-12)\n *   * `'mm'`: Minute in hour, padded (00-59)\n *   * `'m'`: Minute in hour (0-59)\n *   * `'ss'`: Second in minute, padded (00-59)\n *   * `'s'`: Second in minute (0-59)\n *   * `'sss'`: Millisecond in second, padded (000-999)\n *   * `'a'`: AM/PM marker\n *   * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200)\n *   * `'ww'`: Week of year, padded (00-53). Week 01 is the week with the first Thursday of the year\n *   * `'w'`: Week of year (0-53). Week 1 is the week with the first Thursday of the year\n *   * `'G'`, `'GG'`, `'GGG'`: The abbreviated form of the era string (e.g. 'AD')\n *   * `'GGGG'`: The long form of the era string (e.g. 'Anno Domini')\n *\n *   `format` string can also be one of the following predefined\n *   {@link guide/i18n localizable formats}:\n *\n *   * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale\n *     (e.g. Sep 3, 2010 12:05:08 PM)\n *   * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US  locale (e.g. 9/3/10 12:05 PM)\n *   * `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` for en_US  locale\n *     (e.g. Friday, September 3, 2010)\n *   * `'longDate'`: equivalent to `'MMMM d, y'` for en_US  locale (e.g. September 3, 2010)\n *   * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US  locale (e.g. Sep 3, 2010)\n *   * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10)\n *   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 PM)\n *   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 PM)\n *\n *   `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g.\n *   `\"h 'in the morning'\"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence\n *   (e.g. `\"h 'o''clock'\"`).\n *\n *   Any other characters in the `format` string will be output as-is.\n *\n * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or\n *    number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.sssZ and its\n *    shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ). If no timezone is\n *    specified in the string input, the time is considered to be in the local timezone.\n * @param {string=} format Formatting rules (see Description). If not specified,\n *    `mediumDate` is used.\n * @param {string=} timezone Timezone to be used for formatting. It understands UTC/GMT and the\n *    continental US time zone abbreviations, but for general use, use a time zone offset, for\n *    example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)\n *    If not specified, the timezone of the browser will be used.\n * @returns {string} Formatted string or the input if input is not recognized as date/millis.\n *\n * @example\n   <example name=\"filter-date\">\n     <file name=\"index.html\">\n       <span ng-non-bindable>{{1288323623006 | date:'medium'}}</span>:\n           <span>{{1288323623006 | date:'medium'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span>:\n          <span>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}</span>:\n          <span>{{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}</span><br>\n       <span ng-non-bindable>{{1288323623006 | date:\"MM/dd/yyyy 'at' h:mma\"}}</span>:\n          <span>{{'1288323623006' | date:\"MM/dd/yyyy 'at' h:mma\"}}</span><br>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should format date', function() {\n         expect(element(by.binding(\"1288323623006 | date:'medium'\")).getText()).\n            toMatch(/Oct 2\\d, 2010 \\d{1,2}:\\d{2}:\\d{2} (AM|PM)/);\n         expect(element(by.binding(\"1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'\")).getText()).\n            toMatch(/2010-10-2\\d \\d{2}:\\d{2}:\\d{2} (-|\\+)?\\d{4}/);\n         expect(element(by.binding(\"'1288323623006' | date:'MM/dd/yyyy @ h:mma'\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 @ \\d{1,2}:\\d{2}(AM|PM)/);\n         expect(element(by.binding(\"'1288323623006' | date:\\\"MM/dd/yyyy 'at' h:mma\\\"\")).getText()).\n            toMatch(/10\\/2\\d\\/2010 at \\d{1,2}:\\d{2}(AM|PM)/);\n       });\n     </file>\n   </example>\n */\ndateFilter.$inject = ['$locale'];\nfunction dateFilter($locale) {\n\n\n  var R_ISO8601_STR = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/;\n                     // 1        2       3         4          5          6          7          8  9     10      11\n  function jsonStringToDate(string) {\n    var match;\n    if ((match = string.match(R_ISO8601_STR))) {\n      var date = new Date(0),\n          tzHour = 0,\n          tzMin  = 0,\n          dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,\n          timeSetter = match[8] ? date.setUTCHours : date.setHours;\n\n      if (match[9]) {\n        tzHour = toInt(match[9] + match[10]);\n        tzMin = toInt(match[9] + match[11]);\n      }\n      dateSetter.call(date, toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]));\n      var h = toInt(match[4] || 0) - tzHour;\n      var m = toInt(match[5] || 0) - tzMin;\n      var s = toInt(match[6] || 0);\n      var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);\n      timeSetter.call(date, h, m, s, ms);\n      return date;\n    }\n    return string;\n  }\n\n\n  return function(date, format, timezone) {\n    var text = '',\n        parts = [],\n        fn, match;\n\n    format = format || 'mediumDate';\n    format = $locale.DATETIME_FORMATS[format] || format;\n    if (isString(date)) {\n      date = NUMBER_STRING.test(date) ? toInt(date) : jsonStringToDate(date);\n    }\n\n    if (isNumber(date)) {\n      date = new Date(date);\n    }\n\n    if (!isDate(date) || !isFinite(date.getTime())) {\n      return date;\n    }\n\n    while (format) {\n      match = DATE_FORMATS_SPLIT.exec(format);\n      if (match) {\n        parts = concat(parts, match, 1);\n        format = parts.pop();\n      } else {\n        parts.push(format);\n        format = null;\n      }\n    }\n\n    var dateTimezoneOffset = date.getTimezoneOffset();\n    if (timezone) {\n      dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n      date = convertTimezoneToLocal(date, timezone, true);\n    }\n    forEach(parts, function(value) {\n      fn = DATE_FORMATS[value];\n      text += fn ? fn(date, $locale.DATETIME_FORMATS, dateTimezoneOffset)\n                 : value === '\\'\\'' ? '\\'' : value.replace(/(^'|'$)/g, '').replace(/''/g, '\\'');\n    });\n\n    return text;\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name json\n * @kind function\n *\n * @description\n *   Allows you to convert a JavaScript object into JSON string.\n *\n *   This filter is mostly useful for debugging. When using the double curly {{value}} notation\n *   the binding is automatically converted to JSON.\n *\n * @param {*} object Any JavaScript object (including arrays and primitive types) to filter.\n * @param {number=} spacing The number of spaces to use per indentation, defaults to 2.\n * @returns {string} JSON string.\n *\n *\n * @example\n   <example name=\"filter-json\">\n     <file name=\"index.html\">\n       <pre id=\"default-spacing\">{{ {'name':'value'} | json }}</pre>\n       <pre id=\"custom-spacing\">{{ {'name':'value'} | json:4 }}</pre>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should jsonify filtered objects', function() {\n         expect(element(by.id('default-spacing')).getText()).toMatch(/\\{\\n {2}\"name\": ?\"value\"\\n}/);\n         expect(element(by.id('custom-spacing')).getText()).toMatch(/\\{\\n {4}\"name\": ?\"value\"\\n}/);\n       });\n     </file>\n   </example>\n *\n */\nfunction jsonFilter() {\n  return function(object, spacing) {\n    if (isUndefined(spacing)) {\n        spacing = 2;\n    }\n    return toJson(object, spacing);\n  };\n}\n\n\n/**\n * @ngdoc filter\n * @name lowercase\n * @kind function\n * @description\n * Converts string to lowercase.\n *\n * See the {@link ng.uppercase uppercase filter documentation} for a functionally identical example.\n *\n * @see angular.lowercase\n */\nvar lowercaseFilter = valueFn(lowercase);\n\n\n/**\n * @ngdoc filter\n * @name uppercase\n * @kind function\n * @description\n * Converts string to uppercase.\n * @example\n   <example module=\"uppercaseFilterExample\" name=\"filter-uppercase\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('uppercaseFilterExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.title = 'This is a title';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <!-- This title should be formatted normally -->\n         <h1>{{title}}</h1>\n         <!-- This title should be capitalized -->\n         <h1>{{title | uppercase}}</h1>\n       </div>\n     </file>\n   </example>\n */\nvar uppercaseFilter = valueFn(uppercase);\n\n/**\n * @ngdoc filter\n * @name limitTo\n * @kind function\n *\n * @description\n * Creates a new array or string containing only a specified number of elements. The elements are\n * taken from either the beginning or the end of the source array, string or number, as specified by\n * the value and sign (positive or negative) of `limit`. Other array-like objects are also supported\n * (e.g. array subclasses, NodeLists, jqLite/jQuery collections etc). If a number is used as input,\n * it is converted to a string.\n *\n * @param {Array|ArrayLike|string|number} input - Array/array-like, string or number to be limited.\n * @param {string|number} limit - The length of the returned array or string. If the `limit` number\n *     is positive, `limit` number of items from the beginning of the source array/string are copied.\n *     If the number is negative, `limit` number  of items from the end of the source array/string\n *     are copied. The `limit` will be trimmed if it exceeds `array.length`. If `limit` is undefined,\n *     the input will be returned unchanged.\n * @param {(string|number)=} begin - Index at which to begin limitation. As a negative index,\n *     `begin` indicates an offset from the end of `input`. Defaults to `0`.\n * @returns {Array|string} A new sub-array or substring of length `limit` or less if the input had\n *     less than `limit` elements.\n *\n * @example\n   <example module=\"limitToExample\" name=\"limit-to-filter\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('limitToExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.numbers = [1,2,3,4,5,6,7,8,9];\n             $scope.letters = \"abcdefghi\";\n             $scope.longNumber = 2345432342;\n             $scope.numLimit = 3;\n             $scope.letterLimit = 3;\n             $scope.longNumberLimit = 3;\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>\n            Limit {{numbers}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"numLimit\">\n         </label>\n         <p>Output numbers: {{ numbers | limitTo:numLimit }}</p>\n         <label>\n            Limit {{letters}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"letterLimit\">\n         </label>\n         <p>Output letters: {{ letters | limitTo:letterLimit }}</p>\n         <label>\n            Limit {{longNumber}} to:\n            <input type=\"number\" step=\"1\" ng-model=\"longNumberLimit\">\n         </label>\n         <p>Output long number: {{ longNumber | limitTo:longNumberLimit }}</p>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var numLimitInput = element(by.model('numLimit'));\n       var letterLimitInput = element(by.model('letterLimit'));\n       var longNumberLimitInput = element(by.model('longNumberLimit'));\n       var limitedNumbers = element(by.binding('numbers | limitTo:numLimit'));\n       var limitedLetters = element(by.binding('letters | limitTo:letterLimit'));\n       var limitedLongNumber = element(by.binding('longNumber | limitTo:longNumberLimit'));\n\n       it('should limit the number array to first three items', function() {\n         expect(numLimitInput.getAttribute('value')).toBe('3');\n         expect(letterLimitInput.getAttribute('value')).toBe('3');\n         expect(longNumberLimitInput.getAttribute('value')).toBe('3');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abc');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 234');\n       });\n\n       // There is a bug in safari and protractor that doesn't like the minus key\n       // it('should update the output when -3 is entered', function() {\n       //   numLimitInput.clear();\n       //   numLimitInput.sendKeys('-3');\n       //   letterLimitInput.clear();\n       //   letterLimitInput.sendKeys('-3');\n       //   longNumberLimitInput.clear();\n       //   longNumberLimitInput.sendKeys('-3');\n       //   expect(limitedNumbers.getText()).toEqual('Output numbers: [7,8,9]');\n       //   expect(limitedLetters.getText()).toEqual('Output letters: ghi');\n       //   expect(limitedLongNumber.getText()).toEqual('Output long number: 342');\n       // });\n\n       it('should not exceed the maximum size of input array', function() {\n         numLimitInput.clear();\n         numLimitInput.sendKeys('100');\n         letterLimitInput.clear();\n         letterLimitInput.sendKeys('100');\n         longNumberLimitInput.clear();\n         longNumberLimitInput.sendKeys('100');\n         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3,4,5,6,7,8,9]');\n         expect(limitedLetters.getText()).toEqual('Output letters: abcdefghi');\n         expect(limitedLongNumber.getText()).toEqual('Output long number: 2345432342');\n       });\n     </file>\n   </example>\n*/\nfunction limitToFilter() {\n  return function(input, limit, begin) {\n    if (Math.abs(Number(limit)) === Infinity) {\n      limit = Number(limit);\n    } else {\n      limit = toInt(limit);\n    }\n    if (isNumberNaN(limit)) return input;\n\n    if (isNumber(input)) input = input.toString();\n    if (!isArrayLike(input)) return input;\n\n    begin = (!begin || isNaN(begin)) ? 0 : toInt(begin);\n    begin = (begin < 0) ? Math.max(0, input.length + begin) : begin;\n\n    if (limit >= 0) {\n      return sliceFn(input, begin, begin + limit);\n    } else {\n      if (begin === 0) {\n        return sliceFn(input, limit, input.length);\n      } else {\n        return sliceFn(input, Math.max(0, begin + limit), begin);\n      }\n    }\n  };\n}\n\nfunction sliceFn(input, begin, end) {\n  if (isString(input)) return input.slice(begin, end);\n\n  return slice.call(input, begin, end);\n}\n\n/**\n * @ngdoc filter\n * @name orderBy\n * @kind function\n *\n * @description\n * Returns an array containing the items from the specified `collection`, ordered by a `comparator`\n * function based on the values computed using the `expression` predicate.\n *\n * For example, `[{id: 'foo'}, {id: 'bar'}] | orderBy:'id'` would result in\n * `[{id: 'bar'}, {id: 'foo'}]`.\n *\n * The `collection` can be an Array or array-like object (e.g. NodeList, jQuery object, TypedArray,\n * String, etc).\n *\n * The `expression` can be a single predicate, or a list of predicates each serving as a tie-breaker\n * for the preceding one. The `expression` is evaluated against each item and the output is used\n * for comparing with other items.\n *\n * You can change the sorting order by setting `reverse` to `true`. By default, items are sorted in\n * ascending order.\n *\n * The comparison is done using the `comparator` function. If none is specified, a default, built-in\n * comparator is used (see below for details - in a nutshell, it compares numbers numerically and\n * strings alphabetically).\n *\n * ### Under the hood\n *\n * Ordering the specified `collection` happens in two phases:\n *\n * 1. All items are passed through the predicate (or predicates), and the returned values are saved\n *    along with their type (`string`, `number` etc). For example, an item `{label: 'foo'}`, passed\n *    through a predicate that extracts the value of the `label` property, would be transformed to:\n *    ```\n *    {\n *      value: 'foo',\n *      type: 'string',\n *      index: ...\n *    }\n *    ```\n *    **Note:** `null` values use `'null'` as their type.\n * 2. The comparator function is used to sort the items, based on the derived values, types and\n *    indices.\n *\n * If you use a custom comparator, it will be called with pairs of objects of the form\n * `{value: ..., type: '...', index: ...}` and is expected to return `0` if the objects are equal\n * (as far as the comparator is concerned), `-1` if the 1st one should be ranked higher than the\n * second, or `1` otherwise.\n *\n * In order to ensure that the sorting will be deterministic across platforms, if none of the\n * specified predicates can distinguish between two items, `orderBy` will automatically introduce a\n * dummy predicate that returns the item's index as `value`.\n * (If you are using a custom comparator, make sure it can handle this predicate as well.)\n *\n * If a custom comparator still can't distinguish between two items, then they will be sorted based\n * on their index using the built-in comparator.\n *\n * Finally, in an attempt to simplify things, if a predicate returns an object as the extracted\n * value for an item, `orderBy` will try to convert that object to a primitive value, before passing\n * it to the comparator. The following rules govern the conversion:\n *\n * 1. If the object has a `valueOf()` method that returns a primitive, its return value will be\n *    used instead.<br />\n *    (If the object has a `valueOf()` method that returns another object, then the returned object\n *    will be used in subsequent steps.)\n * 2. If the object has a custom `toString()` method (i.e. not the one inherited from `Object`) that\n *    returns a primitive, its return value will be used instead.<br />\n *    (If the object has a `toString()` method that returns another object, then the returned object\n *    will be used in subsequent steps.)\n * 3. No conversion; the object itself is used.\n *\n * ### The default comparator\n *\n * The default, built-in comparator should be sufficient for most usecases. In short, it compares\n * numbers numerically, strings alphabetically (and case-insensitively), for objects falls back to\n * using their index in the original collection, sorts values of different types by type and puts\n * `undefined` and `null` values at the end of the sorted list.\n *\n * More specifically, it follows these steps to determine the relative order of items:\n *\n * 1. If the compared values are of different types:\n *    - If one of the values is undefined, consider it \"greater than\" the other.\n *    - Else if one of the values is null, consider it \"greater than\" the other.\n *    - Else compare the types themselves alphabetically.\n * 2. If both values are of type `string`, compare them alphabetically in a case- and\n *    locale-insensitive way.\n * 3. If both values are objects, compare their indices instead.\n * 4. Otherwise, return:\n *    -  `0`, if the values are equal (by strict equality comparison, i.e. using `===`).\n *    - `-1`, if the 1st value is \"less than\" the 2nd value (compared using the `<` operator).\n *    -  `1`, otherwise.\n *\n * **Note:** If you notice numbers not being sorted as expected, make sure they are actually being\n *           saved as numbers and not strings.\n * **Note:** For the purpose of sorting, `null` and `undefined` are considered \"greater than\"\n *           any other value (with undefined \"greater than\" null). This effectively means that `null`\n *           and `undefined` values end up at the end of a list sorted in ascending order.\n * **Note:** `null` values use `'null'` as their type to be able to distinguish them from objects.\n *\n * @param {Array|ArrayLike} collection - The collection (array or array-like object) to sort.\n * @param {(Function|string|Array.<Function|string>)=} expression - A predicate (or list of\n *    predicates) to be used by the comparator to determine the order of elements.\n *\n *    Can be one of:\n *\n *    - `Function`: A getter function. This function will be called with each item as argument and\n *      the return value will be used for sorting.\n *    - `string`: An AngularJS expression. This expression will be evaluated against each item and the\n *      result will be used for sorting. For example, use `'label'` to sort by a property called\n *      `label` or `'label.substring(0, 3)'` to sort by the first 3 characters of the `label`\n *      property.<br />\n *      (The result of a constant expression is interpreted as a property name to be used for\n *      comparison. For example, use `'\"special name\"'` (note the extra pair of quotes) to sort by a\n *      property called `special name`.)<br />\n *      An expression can be optionally prefixed with `+` or `-` to control the sorting direction,\n *      ascending or descending. For example, `'+label'` or `'-label'`. If no property is provided,\n *      (e.g. `'+'` or `'-'`), the collection element itself is used in comparisons.\n *    - `Array`: An array of function and/or string predicates. If a predicate cannot determine the\n *      relative order of two items, the next predicate is used as a tie-breaker.\n *\n * **Note:** If the predicate is missing or empty then it defaults to `'+'`.\n *\n * @param {boolean=} reverse - If `true`, reverse the sorting order.\n * @param {(Function)=} comparator - The comparator function used to determine the relative order of\n *    value pairs. If omitted, the built-in comparator will be used.\n *\n * @returns {Array} - The sorted array.\n *\n *\n * @example\n * ### Ordering a table with `ngRepeat`\n *\n * The example below demonstrates a simple {@link ngRepeat ngRepeat}, where the data is sorted by\n * age in descending order (expression is set to `'-age'`). The `comparator` is not set, which means\n * it defaults to the built-in comparator.\n *\n   <example name=\"orderBy-static\" module=\"orderByExample1\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <table class=\"friends\">\n           <tr>\n             <th>Name</th>\n             <th>Phone Number</th>\n             <th>Age</th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:'-age'\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample1', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var names = element.all(by.repeater('friends').column('friend.name'));\n\n       it('should sort friends by age in reverse order', function() {\n         expect(names.get(0).getText()).toBe('Adam');\n         expect(names.get(1).getText()).toBe('Julie');\n         expect(names.get(2).getText()).toBe('Mike');\n         expect(names.get(3).getText()).toBe('Mary');\n         expect(names.get(4).getText()).toBe('John');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Changing parameters dynamically\n *\n * All parameters can be changed dynamically. The next example shows how you can make the columns of\n * a table sortable, by binding the `expression` and `reverse` parameters to scope properties.\n *\n   <example name=\"orderBy-dynamic\" module=\"orderByExample2\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <pre>Sort by = {{propertyName}}; reverse = {{reverse}}</pre>\n         <hr/>\n         <button ng-click=\"propertyName = null; reverse = false\">Set to unsorted</button>\n         <hr/>\n         <table class=\"friends\">\n           <tr>\n             <th>\n               <button ng-click=\"sortBy('name')\">Name</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'name'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('phone')\">Phone Number</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'phone'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('age')\">Age</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'age'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n           </tr>\n           <tr ng-repeat=\"friend in friends | orderBy:propertyName:reverse\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample2', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           var friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n\n           $scope.propertyName = 'age';\n           $scope.reverse = true;\n           $scope.friends = friends;\n\n           $scope.sortBy = function(propertyName) {\n             $scope.reverse = ($scope.propertyName === propertyName) ? !$scope.reverse : false;\n             $scope.propertyName = propertyName;\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n\n       .sortorder:after {\n         content: '\\25b2';   // BLACK UP-POINTING TRIANGLE\n       }\n       .sortorder.reverse:after {\n         content: '\\25bc';   // BLACK DOWN-POINTING TRIANGLE\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var unsortButton = element(by.partialButtonText('unsorted'));\n       var nameHeader = element(by.partialButtonText('Name'));\n       var phoneHeader = element(by.partialButtonText('Phone'));\n       var ageHeader = element(by.partialButtonText('Age'));\n       var firstName = element(by.repeater('friends').column('friend.name').row(0));\n       var lastName = element(by.repeater('friends').column('friend.name').row(4));\n\n       it('should sort friends by some property, when clicking on the column header', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         phoneHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Mary');\n\n         nameHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('Mike');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n       });\n\n       it('should sort friends in reverse order, when clicking on the same column', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n       });\n\n       it('should restore the original order, when clicking \"Set to unsorted\"', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         unsortButton.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Using `orderBy` inside a controller\n *\n * It is also possible to call the `orderBy` filter manually, by injecting `orderByFilter`, and\n * calling it with the desired parameters. (Alternatively, you could inject the `$filter` factory\n * and retrieve the `orderBy` filter with `$filter('orderBy')`.)\n *\n   <example name=\"orderBy-call-manually\" module=\"orderByExample3\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <pre>Sort by = {{propertyName}}; reverse = {{reverse}}</pre>\n         <hr/>\n         <button ng-click=\"sortBy(null)\">Set to unsorted</button>\n         <hr/>\n         <table class=\"friends\">\n           <tr>\n             <th>\n               <button ng-click=\"sortBy('name')\">Name</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'name'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('phone')\">Phone Number</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'phone'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n             <th>\n               <button ng-click=\"sortBy('age')\">Age</button>\n               <span class=\"sortorder\" ng-show=\"propertyName === 'age'\" ng-class=\"{reverse: reverse}\"></span>\n             </th>\n           </tr>\n           <tr ng-repeat=\"friend in friends\">\n             <td>{{friend.name}}</td>\n             <td>{{friend.phone}}</td>\n             <td>{{friend.age}}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample3', [])\n         .controller('ExampleController', ['$scope', 'orderByFilter', function($scope, orderBy) {\n           var friends = [\n             {name: 'John',   phone: '555-1212',  age: 10},\n             {name: 'Mary',   phone: '555-9876',  age: 19},\n             {name: 'Mike',   phone: '555-4321',  age: 21},\n             {name: 'Adam',   phone: '555-5678',  age: 35},\n             {name: 'Julie',  phone: '555-8765',  age: 29}\n           ];\n\n           $scope.propertyName = 'age';\n           $scope.reverse = true;\n           $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse);\n\n           $scope.sortBy = function(propertyName) {\n             $scope.reverse = (propertyName !== null && $scope.propertyName === propertyName)\n                 ? !$scope.reverse : false;\n             $scope.propertyName = propertyName;\n             $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n\n       .sortorder:after {\n         content: '\\25b2';   // BLACK UP-POINTING TRIANGLE\n       }\n       .sortorder.reverse:after {\n         content: '\\25bc';   // BLACK DOWN-POINTING TRIANGLE\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var unsortButton = element(by.partialButtonText('unsorted'));\n       var nameHeader = element(by.partialButtonText('Name'));\n       var phoneHeader = element(by.partialButtonText('Phone'));\n       var ageHeader = element(by.partialButtonText('Age'));\n       var firstName = element(by.repeater('friends').column('friend.name').row(0));\n       var lastName = element(by.repeater('friends').column('friend.name').row(4));\n\n       it('should sort friends by some property, when clicking on the column header', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         phoneHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Mary');\n\n         nameHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('Mike');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n       });\n\n       it('should sort friends in reverse order, when clicking on the same column', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Adam');\n\n         ageHeader.click();\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n       });\n\n       it('should restore the original order, when clicking \"Set to unsorted\"', function() {\n         expect(firstName.getText()).toBe('Adam');\n         expect(lastName.getText()).toBe('John');\n\n         unsortButton.click();\n         expect(firstName.getText()).toBe('John');\n         expect(lastName.getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n * <hr />\n *\n * @example\n * ### Using a custom comparator\n *\n * If you have very specific requirements about the way items are sorted, you can pass your own\n * comparator function. For example, you might need to compare some strings in a locale-sensitive\n * way. (When specifying a custom comparator, you also need to pass a value for the `reverse`\n * argument - passing `false` retains the default sorting order, i.e. ascending.)\n *\n   <example name=\"orderBy-custom-comparator\" module=\"orderByExample4\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <div class=\"friends-container custom-comparator\">\n           <h3>Locale-sensitive Comparator</h3>\n           <table class=\"friends\">\n             <tr>\n               <th>Name</th>\n               <th>Favorite Letter</th>\n             </tr>\n             <tr ng-repeat=\"friend in friends | orderBy:'favoriteLetter':false:localeSensitiveComparator\">\n               <td>{{friend.name}}</td>\n               <td>{{friend.favoriteLetter}}</td>\n             </tr>\n           </table>\n         </div>\n         <div class=\"friends-container default-comparator\">\n           <h3>Default Comparator</h3>\n           <table class=\"friends\">\n             <tr>\n               <th>Name</th>\n               <th>Favorite Letter</th>\n             </tr>\n             <tr ng-repeat=\"friend in friends | orderBy:'favoriteLetter'\">\n               <td>{{friend.name}}</td>\n               <td>{{friend.favoriteLetter}}</td>\n             </tr>\n           </table>\n         </div>\n       </div>\n     </file>\n     <file name=\"script.js\">\n       angular.module('orderByExample4', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.friends = [\n             {name: 'John',   favoriteLetter: 'Ä'},\n             {name: 'Mary',   favoriteLetter: 'Ü'},\n             {name: 'Mike',   favoriteLetter: 'Ö'},\n             {name: 'Adam',   favoriteLetter: 'H'},\n             {name: 'Julie',  favoriteLetter: 'Z'}\n           ];\n\n           $scope.localeSensitiveComparator = function(v1, v2) {\n             // If we don't get strings, just compare by index\n             if (v1.type !== 'string' || v2.type !== 'string') {\n               return (v1.index < v2.index) ? -1 : 1;\n             }\n\n             // Compare strings alphabetically, taking locale into account\n             return v1.value.localeCompare(v2.value);\n           };\n         }]);\n     </file>\n     <file name=\"style.css\">\n       .friends-container {\n         display: inline-block;\n         margin: 0 30px;\n       }\n\n       .friends {\n         border-collapse: collapse;\n       }\n\n       .friends th {\n         border-bottom: 1px solid;\n       }\n       .friends td, .friends th {\n         border-left: 1px solid;\n         padding: 5px 10px;\n       }\n       .friends td:first-child, .friends th:first-child {\n         border-left: none;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       // Element locators\n       var container = element(by.css('.custom-comparator'));\n       var names = container.all(by.repeater('friends').column('friend.name'));\n\n       it('should sort friends by favorite letter (in correct alphabetical order)', function() {\n         expect(names.get(0).getText()).toBe('John');\n         expect(names.get(1).getText()).toBe('Adam');\n         expect(names.get(2).getText()).toBe('Mike');\n         expect(names.get(3).getText()).toBe('Mary');\n         expect(names.get(4).getText()).toBe('Julie');\n       });\n     </file>\n   </example>\n *\n */\norderByFilter.$inject = ['$parse'];\nfunction orderByFilter($parse) {\n  return function(array, sortPredicate, reverseOrder, compareFn) {\n\n    if (array == null) return array;\n    if (!isArrayLike(array)) {\n      throw minErr('orderBy')('notarray', 'Expected array but received: {0}', array);\n    }\n\n    if (!isArray(sortPredicate)) { sortPredicate = [sortPredicate]; }\n    if (sortPredicate.length === 0) { sortPredicate = ['+']; }\n\n    var predicates = processPredicates(sortPredicate);\n\n    var descending = reverseOrder ? -1 : 1;\n\n    // Define the `compare()` function. Use a default comparator if none is specified.\n    var compare = isFunction(compareFn) ? compareFn : defaultCompare;\n\n    // The next three lines are a version of a Swartzian Transform idiom from Perl\n    // (sometimes called the Decorate-Sort-Undecorate idiom)\n    // See https://en.wikipedia.org/wiki/Schwartzian_transform\n    var compareValues = Array.prototype.map.call(array, getComparisonObject);\n    compareValues.sort(doComparison);\n    array = compareValues.map(function(item) { return item.value; });\n\n    return array;\n\n    function getComparisonObject(value, index) {\n      // NOTE: We are adding an extra `tieBreaker` value based on the element's index.\n      // This will be used to keep the sort stable when none of the input predicates can\n      // distinguish between two elements.\n      return {\n        value: value,\n        tieBreaker: {value: index, type: 'number', index: index},\n        predicateValues: predicates.map(function(predicate) {\n          return getPredicateValue(predicate.get(value), index);\n        })\n      };\n    }\n\n    function doComparison(v1, v2) {\n      for (var i = 0, ii = predicates.length; i < ii; i++) {\n        var result = compare(v1.predicateValues[i], v2.predicateValues[i]);\n        if (result) {\n          return result * predicates[i].descending * descending;\n        }\n      }\n\n      return (compare(v1.tieBreaker, v2.tieBreaker) || defaultCompare(v1.tieBreaker, v2.tieBreaker)) * descending;\n    }\n  };\n\n  function processPredicates(sortPredicates) {\n    return sortPredicates.map(function(predicate) {\n      var descending = 1, get = identity;\n\n      if (isFunction(predicate)) {\n        get = predicate;\n      } else if (isString(predicate)) {\n        if ((predicate.charAt(0) === '+' || predicate.charAt(0) === '-')) {\n          descending = predicate.charAt(0) === '-' ? -1 : 1;\n          predicate = predicate.substring(1);\n        }\n        if (predicate !== '') {\n          get = $parse(predicate);\n          if (get.constant) {\n            var key = get();\n            get = function(value) { return value[key]; };\n          }\n        }\n      }\n      return {get: get, descending: descending};\n    });\n  }\n\n  function isPrimitive(value) {\n    switch (typeof value) {\n      case 'number': /* falls through */\n      case 'boolean': /* falls through */\n      case 'string':\n        return true;\n      default:\n        return false;\n    }\n  }\n\n  function objectValue(value) {\n    // If `valueOf` is a valid function use that\n    if (isFunction(value.valueOf)) {\n      value = value.valueOf();\n      if (isPrimitive(value)) return value;\n    }\n    // If `toString` is a valid function and not the one from `Object.prototype` use that\n    if (hasCustomToString(value)) {\n      value = value.toString();\n      if (isPrimitive(value)) return value;\n    }\n\n    return value;\n  }\n\n  function getPredicateValue(value, index) {\n    var type = typeof value;\n    if (value === null) {\n      type = 'null';\n    } else if (type === 'object') {\n      value = objectValue(value);\n    }\n    return {value: value, type: type, index: index};\n  }\n\n  function defaultCompare(v1, v2) {\n    var result = 0;\n    var type1 = v1.type;\n    var type2 = v2.type;\n\n    if (type1 === type2) {\n      var value1 = v1.value;\n      var value2 = v2.value;\n\n      if (type1 === 'string') {\n        // Compare strings case-insensitively\n        value1 = value1.toLowerCase();\n        value2 = value2.toLowerCase();\n      } else if (type1 === 'object') {\n        // For basic objects, use the position of the object\n        // in the collection instead of the value\n        if (isObject(value1)) value1 = v1.index;\n        if (isObject(value2)) value2 = v2.index;\n      }\n\n      if (value1 !== value2) {\n        result = value1 < value2 ? -1 : 1;\n      }\n    } else {\n      result = (type1 === 'undefined') ? 1 :\n        (type2 === 'undefined') ? -1 :\n        (type1 === 'null') ? 1 :\n        (type2 === 'null') ? -1 :\n        (type1 < type2) ? -1 : 1;\n    }\n\n    return result;\n  }\n}\n\nfunction ngDirective(directive) {\n  if (isFunction(directive)) {\n    directive = {\n      link: directive\n    };\n  }\n  directive.restrict = directive.restrict || 'AC';\n  return valueFn(directive);\n}\n\n/**\n * @ngdoc directive\n * @name a\n * @restrict E\n *\n * @description\n * Modifies the default behavior of the html a tag so that the default action is prevented when\n * the href attribute is empty.\n *\n * For dynamically creating `href` attributes for a tags, see the {@link ng.ngHref `ngHref`} directive.\n */\nvar htmlAnchorDirective = valueFn({\n  restrict: 'E',\n  compile: function(element, attr) {\n    if (!attr.href && !attr.xlinkHref) {\n      return function(scope, element) {\n        // If the linked element is not an anchor tag anymore, do nothing\n        if (element[0].nodeName.toLowerCase() !== 'a') return;\n\n        // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.\n        var href = toString.call(element.prop('href')) === '[object SVGAnimatedString]' ?\n                   'xlink:href' : 'href';\n        element.on('click', function(event) {\n          // if we have no href url, then don't navigate anywhere.\n          if (!element.attr(href)) {\n            event.preventDefault();\n          }\n        });\n      };\n    }\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngHref\n * @restrict A\n * @priority 99\n *\n * @description\n * Using AngularJS markup like `{{hash}}` in an href attribute will\n * make the link go to the wrong URL if the user clicks it before\n * AngularJS has a chance to replace the `{{hash}}` markup with its\n * value. Until AngularJS replaces the markup the link will be broken\n * and will most likely return a 404 error. The `ngHref` directive\n * solves this problem.\n *\n * The wrong way to write it:\n * ```html\n * <a href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <a ng-href=\"http://www.gravatar.com/avatar/{{hash}}\">link1</a>\n * ```\n *\n * @element A\n * @param {template} ngHref any string which can contain `{{}}` markup.\n *\n * @example\n * This example shows various combinations of `href`, `ng-href` and `ng-click` attributes\n * in links and their different behaviors:\n    <example name=\"ng-href\">\n      <file name=\"index.html\">\n        <input ng-model=\"value\" /><br />\n        <a id=\"link-1\" href ng-click=\"value = 1\">link 1</a> (link, don't reload)<br />\n        <a id=\"link-2\" href=\"\" ng-click=\"value = 2\">link 2</a> (link, don't reload)<br />\n        <a id=\"link-3\" ng-href=\"/{{'123'}}\">link 3</a> (link, reload!)<br />\n        <a id=\"link-4\" href=\"\" name=\"xx\" ng-click=\"value = 4\">anchor</a> (link, don't reload)<br />\n        <a id=\"link-5\" name=\"xxx\" ng-click=\"value = 5\">anchor</a> (no link)<br />\n        <a id=\"link-6\" ng-href=\"{{value}}\">link</a> (link, change location)\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should execute ng-click but not reload when href without value', function() {\n          element(by.id('link-1')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('1');\n          expect(element(by.id('link-1')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when href empty string', function() {\n          element(by.id('link-2')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('2');\n          expect(element(by.id('link-2')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click and change url when ng-href specified', function() {\n          expect(element(by.id('link-3')).getAttribute('href')).toMatch(/\\/123$/);\n\n          element(by.id('link-3')).click();\n\n          // At this point, we navigate away from an AngularJS page, so we need\n          // to use browser.driver to get the base webdriver.\n\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/123$/);\n            });\n          }, 5000, 'page should navigate to /123');\n        });\n\n        it('should execute ng-click but not reload when href empty string and name specified', function() {\n          element(by.id('link-4')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('4');\n          expect(element(by.id('link-4')).getAttribute('href')).toBe('');\n        });\n\n        it('should execute ng-click but not reload when no href but name specified', function() {\n          element(by.id('link-5')).click();\n          expect(element(by.model('value')).getAttribute('value')).toEqual('5');\n          expect(element(by.id('link-5')).getAttribute('href')).toBe(null);\n        });\n\n        it('should only change url when only ng-href', function() {\n          element(by.model('value')).clear();\n          element(by.model('value')).sendKeys('6');\n          expect(element(by.id('link-6')).getAttribute('href')).toMatch(/\\/6$/);\n\n          element(by.id('link-6')).click();\n\n          // At this point, we navigate away from an AngularJS page, so we need\n          // to use browser.driver to get the base webdriver.\n          browser.wait(function() {\n            return browser.driver.getCurrentUrl().then(function(url) {\n              return url.match(/\\/6$/);\n            });\n          }, 5000, 'page should navigate to /6');\n        });\n      </file>\n    </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngSrc\n * @restrict A\n * @priority 99\n *\n * @description\n * Using AngularJS markup like `{{hash}}` in a `src` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until AngularJS replaces the expression inside\n * `{{hash}}`. The `ngSrc` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img src=\"http://www.gravatar.com/avatar/{{hash}}\" alt=\"Description\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-src=\"http://www.gravatar.com/avatar/{{hash}}\" alt=\"Description\" />\n * ```\n *\n * @element IMG\n * @param {template} ngSrc any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngSrcset\n * @restrict A\n * @priority 99\n *\n * @description\n * Using AngularJS markup like `{{hash}}` in a `srcset` attribute doesn't\n * work right: The browser will fetch from the URL with the literal\n * text `{{hash}}` until AngularJS replaces the expression inside\n * `{{hash}}`. The `ngSrcset` directive solves this problem.\n *\n * The buggy way to write it:\n * ```html\n * <img srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\" alt=\"Description\"/>\n * ```\n *\n * The correct way to write it:\n * ```html\n * <img ng-srcset=\"http://www.gravatar.com/avatar/{{hash}} 2x\" alt=\"Description\" />\n * ```\n *\n * @element IMG\n * @param {template} ngSrcset any string which can contain `{{}}` markup.\n */\n\n/**\n * @ngdoc directive\n * @name ngDisabled\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * This directive sets the `disabled` attribute on the element (typically a form control,\n * e.g. `input`, `button`, `select` etc.) if the\n * {@link guide/expression expression} inside `ngDisabled` evaluates to truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `disabled`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-disabled\">\n      <file name=\"index.html\">\n        <label>Click me to toggle: <input type=\"checkbox\" ng-model=\"checked\"></label><br/>\n        <button ng-model=\"button\" ng-disabled=\"checked\">Button</button>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle button', function() {\n          expect(element(by.css('button')).getAttribute('disabled')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('button')).getAttribute('disabled')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @param {expression} ngDisabled If the {@link guide/expression expression} is truthy,\n *     then the `disabled` attribute will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngChecked\n * @restrict A\n * @priority 100\n *\n * @description\n * Sets the `checked` attribute on the element, if the expression inside `ngChecked` is truthy.\n *\n * Note that this directive should not be used together with {@link ngModel `ngModel`},\n * as this can lead to unexpected behavior.\n *\n * A special directive is necessary because we cannot use interpolation inside the `checked`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-checked\">\n      <file name=\"index.html\">\n        <label>Check me to check both: <input type=\"checkbox\" ng-model=\"leader\"></label><br/>\n        <input id=\"checkFollower\" type=\"checkbox\" ng-checked=\"leader\" aria-label=\"Follower input\">\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should check both checkBoxes', function() {\n          expect(element(by.id('checkFollower')).getAttribute('checked')).toBeFalsy();\n          element(by.model('leader')).click();\n          expect(element(by.id('checkFollower')).getAttribute('checked')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngChecked If the {@link guide/expression expression} is truthy,\n *     then the `checked` attribute will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngReadonly\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `readonly` attribute on the element, if the expression inside `ngReadonly` is truthy.\n * Note that `readonly` applies only to `input` elements with specific types. [See the input docs on\n * MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attr-readonly) for more information.\n *\n * A special directive is necessary because we cannot use interpolation inside the `readonly`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * @example\n    <example name=\"ng-readonly\">\n      <file name=\"index.html\">\n        <label>Check me to make text readonly: <input type=\"checkbox\" ng-model=\"checked\"></label><br/>\n        <input type=\"text\" ng-readonly=\"checked\" value=\"I'm AngularJS\" aria-label=\"Readonly field\" />\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should toggle readonly attr', function() {\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeFalsy();\n          element(by.model('checked')).click();\n          expect(element(by.css('[type=\"text\"]')).getAttribute('readonly')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element INPUT\n * @param {expression} ngReadonly If the {@link guide/expression expression} is truthy,\n *     then special attribute \"readonly\" will be set on the element\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSelected\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `selected` attribute on the element, if the expression inside `ngSelected` is truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `selected`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * <div class=\"alert alert-warning\">\n *   **Note:** `ngSelected` does not interact with the `select` and `ngModel` directives, it only\n *   sets the `selected` attribute on the element. If you are using `ngModel` on the select, you\n *   should not use `ngSelected` on the options, as `ngModel` will set the select value and\n *   selected options.\n * </div>\n *\n * @example\n    <example name=\"ng-selected\">\n      <file name=\"index.html\">\n        <label>Check me to select: <input type=\"checkbox\" ng-model=\"selected\"></label><br/>\n        <select aria-label=\"ngSelected demo\">\n          <option>Hello!</option>\n          <option id=\"greet\" ng-selected=\"selected\">Greetings!</option>\n        </select>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should select Greetings!', function() {\n          expect(element(by.id('greet')).getAttribute('selected')).toBeFalsy();\n          element(by.model('selected')).click();\n          expect(element(by.id('greet')).getAttribute('selected')).toBeTruthy();\n        });\n      </file>\n    </example>\n *\n * @element OPTION\n * @param {expression} ngSelected If the {@link guide/expression expression} is truthy,\n *     then special attribute \"selected\" will be set on the element\n */\n\n/**\n * @ngdoc directive\n * @name ngOpen\n * @restrict A\n * @priority 100\n *\n * @description\n *\n * Sets the `open` attribute on the element, if the expression inside `ngOpen` is truthy.\n *\n * A special directive is necessary because we cannot use interpolation inside the `open`\n * attribute. See the {@link guide/interpolation interpolation guide} for more info.\n *\n * ## A note about browser compatibility\n *\n * Internet Explorer and Edge do not support the `details` element, it is\n * recommended to use {@link ng.ngShow} and {@link ng.ngHide} instead.\n *\n * @example\n     <example name=\"ng-open\">\n       <file name=\"index.html\">\n         <label>Toggle details: <input type=\"checkbox\" ng-model=\"open\"></label><br/>\n         <details id=\"details\" ng-open=\"open\">\n            <summary>List</summary>\n            <ul>\n              <li>Apple</li>\n              <li>Orange</li>\n              <li>Durian</li>\n            </ul>\n         </details>\n       </file>\n       <file name=\"protractor.js\" type=\"protractor\">\n         it('should toggle open', function() {\n           expect(element(by.id('details')).getAttribute('open')).toBeFalsy();\n           element(by.model('open')).click();\n           expect(element(by.id('details')).getAttribute('open')).toBeTruthy();\n         });\n       </file>\n     </example>\n *\n * @element DETAILS\n * @param {expression} ngOpen If the {@link guide/expression expression} is truthy,\n *     then special attribute \"open\" will be set on the element\n */\n\nvar ngAttributeAliasDirectives = {};\n\n// boolean attrs are evaluated\nforEach(BOOLEAN_ATTR, function(propName, attrName) {\n  // binding to multiple is not supported\n  if (propName === 'multiple') return;\n\n  function defaultLinkFn(scope, element, attr) {\n    scope.$watch(attr[normalized], function ngBooleanAttrWatchAction(value) {\n      attr.$set(attrName, !!value);\n    });\n  }\n\n  var normalized = directiveNormalize('ng-' + attrName);\n  var linkFn = defaultLinkFn;\n\n  if (propName === 'checked') {\n    linkFn = function(scope, element, attr) {\n      // ensuring ngChecked doesn't interfere with ngModel when both are set on the same input\n      if (attr.ngModel !== attr[normalized]) {\n        defaultLinkFn(scope, element, attr);\n      }\n    };\n  }\n\n  ngAttributeAliasDirectives[normalized] = function() {\n    return {\n      restrict: 'A',\n      priority: 100,\n      link: linkFn\n    };\n  };\n});\n\n// aliased input attrs are evaluated\nforEach(ALIASED_ATTR, function(htmlAttr, ngAttr) {\n  ngAttributeAliasDirectives[ngAttr] = function() {\n    return {\n      priority: 100,\n      link: function(scope, element, attr) {\n        //special case ngPattern when a literal regular expression value\n        //is used as the expression (this way we don't have to watch anything).\n        if (ngAttr === 'ngPattern' && attr.ngPattern.charAt(0) === '/') {\n          var match = attr.ngPattern.match(REGEX_STRING_REGEXP);\n          if (match) {\n            attr.$set('ngPattern', new RegExp(match[1], match[2]));\n            return;\n          }\n        }\n\n        scope.$watch(attr[ngAttr], function ngAttrAliasWatchAction(value) {\n          attr.$set(ngAttr, value);\n        });\n      }\n    };\n  };\n});\n\n// ng-src, ng-srcset, ng-href are interpolated\nforEach(['src', 'srcset', 'href'], function(attrName) {\n  var normalized = directiveNormalize('ng-' + attrName);\n  ngAttributeAliasDirectives[normalized] = ['$sce', function($sce) {\n    return {\n      priority: 99, // it needs to run after the attributes are interpolated\n      link: function(scope, element, attr) {\n        var propName = attrName,\n            name = attrName;\n\n        if (attrName === 'href' &&\n            toString.call(element.prop('href')) === '[object SVGAnimatedString]') {\n          name = 'xlinkHref';\n          attr.$attr[name] = 'xlink:href';\n          propName = null;\n        }\n\n        // We need to sanitize the url at least once, in case it is a constant\n        // non-interpolated attribute.\n        attr.$set(normalized, $sce.getTrustedMediaUrl(attr[normalized]));\n\n        attr.$observe(normalized, function(value) {\n          if (!value) {\n            if (attrName === 'href') {\n              attr.$set(name, null);\n            }\n            return;\n          }\n\n          attr.$set(name, value);\n\n          // Support: IE 9-11 only\n          // On IE, if \"ng:src\" directive declaration is used and \"src\" attribute doesn't exist\n          // then calling element.setAttribute('src', 'foo') doesn't do anything, so we need\n          // to set the property as well to achieve the desired effect.\n          // We use attr[attrName] value since $set might have sanitized the url.\n          if (msie && propName) element.prop(propName, attr[name]);\n        });\n      }\n    };\n  }];\n});\n\n/* global -nullFormCtrl, -PENDING_CLASS, -SUBMITTED_CLASS\n */\nvar nullFormCtrl = {\n  $addControl: noop,\n  $getControls: valueFn([]),\n  $$renameControl: nullFormRenameControl,\n  $removeControl: noop,\n  $setValidity: noop,\n  $setDirty: noop,\n  $setPristine: noop,\n  $setSubmitted: noop,\n  $$setSubmitted: noop\n},\nPENDING_CLASS = 'ng-pending',\nSUBMITTED_CLASS = 'ng-submitted';\n\nfunction nullFormRenameControl(control, name) {\n  control.$name = name;\n}\n\n/**\n * @ngdoc type\n * @name form.FormController\n *\n * @property {boolean} $pristine True if user has not interacted with the form yet.\n * @property {boolean} $dirty True if user has already interacted with the form.\n * @property {boolean} $valid True if all of the containing forms and controls are valid.\n * @property {boolean} $invalid True if at least one containing control or form is invalid.\n * @property {boolean} $submitted True if user has submitted the form even if its invalid.\n *\n * @property {Object} $pending An object hash, containing references to controls or forms with\n *  pending validators, where:\n *\n *  - keys are validations tokens (error names).\n *  - values are arrays of controls or forms that have a pending validator for the given error name.\n *\n * See {@link form.FormController#$error $error} for a list of built-in validation tokens.\n *\n * @property {Object} $error An object hash, containing references to controls or forms with failing\n *  validators, where:\n *\n *  - keys are validation tokens (error names),\n *  - values are arrays of controls or forms that have a failing validator for the given error name.\n *\n *  Built-in validation tokens:\n *  - `email`\n *  - `max`\n *  - `maxlength`\n *  - `min`\n *  - `minlength`\n *  - `number`\n *  - `pattern`\n *  - `required`\n *  - `url`\n *  - `date`\n *  - `datetimelocal`\n *  - `time`\n *  - `week`\n *  - `month`\n *\n * @description\n * `FormController` keeps track of all its controls and nested forms as well as the state of them,\n * such as being valid/invalid or dirty/pristine.\n *\n * Each {@link ng.directive:form form} directive creates an instance\n * of `FormController`.\n *\n */\n//asks for $scope to fool the BC controller module\nFormController.$inject = ['$element', '$attrs', '$scope', '$animate', '$interpolate'];\nfunction FormController($element, $attrs, $scope, $animate, $interpolate) {\n  this.$$controls = [];\n\n  // init state\n  this.$error = {};\n  this.$$success = {};\n  this.$pending = undefined;\n  this.$name = $interpolate($attrs.name || $attrs.ngForm || '')($scope);\n  this.$dirty = false;\n  this.$pristine = true;\n  this.$valid = true;\n  this.$invalid = false;\n  this.$submitted = false;\n  this.$$parentForm = nullFormCtrl;\n\n  this.$$element = $element;\n  this.$$animate = $animate;\n\n  setupValidity(this);\n}\n\nFormController.prototype = {\n  /**\n   * @ngdoc method\n   * @name form.FormController#$rollbackViewValue\n   *\n   * @description\n   * Rollback all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is typically needed by the reset button of\n   * a form that uses `ng-model-options` to pend updates.\n   */\n  $rollbackViewValue: function() {\n    forEach(this.$$controls, function(control) {\n      control.$rollbackViewValue();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$commitViewValue\n   *\n   * @description\n   * Commit all form controls pending updates to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. This method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  $commitViewValue: function() {\n    forEach(this.$$controls, function(control) {\n      control.$commitViewValue();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$addControl\n   * @param {object} control control object, either a {@link form.FormController} or an\n   * {@link ngModel.NgModelController}\n   *\n   * @description\n   * Register a control with the form. Input elements using ngModelController do this automatically\n   * when they are linked.\n   *\n   * Note that the current state of the control will not be reflected on the new parent form. This\n   * is not an issue with normal use, as freshly compiled and linked controls are in a `$pristine`\n   * state.\n   *\n   * However, if the method is used programmatically, for example by adding dynamically created controls,\n   * or controls that have been previously removed without destroying their corresponding DOM element,\n   * it's the developers responsibility to make sure the current state propagates to the parent form.\n   *\n   * For example, if an input control is added that is already `$dirty` and has `$error` properties,\n   * calling `$setDirty()` and `$validate()` afterwards will propagate the state to the parent form.\n   */\n  $addControl: function(control) {\n    // Breaking change - before, inputs whose name was \"hasOwnProperty\" were quietly ignored\n    // and not added to the scope.  Now we throw an error.\n    assertNotHasOwnProperty(control.$name, 'input');\n    this.$$controls.push(control);\n\n    if (control.$name) {\n      this[control.$name] = control;\n    }\n\n    control.$$parentForm = this;\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$getControls\n   * @returns {Array} the controls that are currently part of this form\n   *\n   * @description\n   * This method returns a **shallow copy** of the controls that are currently part of this form.\n   * The controls can be instances of {@link form.FormController `FormController`}\n   * ({@link ngForm \"child-forms\"}) and of {@link ngModel.NgModelController `NgModelController`}.\n   * If you need access to the controls of child-forms, you have to call `$getControls()`\n   * recursively on them.\n   * This can be used for example to iterate over all controls to validate them.\n   *\n   * The controls can be accessed normally, but adding to, or removing controls from the array has\n   * no effect on the form. Instead, use {@link form.FormController#$addControl `$addControl()`} and\n   * {@link form.FormController#$removeControl `$removeControl()`} for this use-case.\n   * Likewise, adding a control to, or removing a control from the form is not reflected\n   * in the shallow copy. That means you should get a fresh copy from `$getControls()` every time\n   * you need access to the controls.\n   */\n  $getControls: function() {\n    return shallowCopy(this.$$controls);\n  },\n\n  // Private API: rename a form control\n  $$renameControl: function(control, newName) {\n    var oldName = control.$name;\n\n    if (this[oldName] === control) {\n      delete this[oldName];\n    }\n    this[newName] = control;\n    control.$name = newName;\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$removeControl\n   * @param {object} control control object, either a {@link form.FormController} or an\n   * {@link ngModel.NgModelController}\n   *\n   * @description\n   * Deregister a control from the form.\n   *\n   * Input elements using ngModelController do this automatically when they are destroyed.\n   *\n   * Note that only the removed control's validation state (`$errors`etc.) will be removed from the\n   * form. `$dirty`, `$submitted` states will not be changed, because the expected behavior can be\n   * different from case to case. For example, removing the only `$dirty` control from a form may or\n   * may not mean that the form is still `$dirty`.\n   */\n  $removeControl: function(control) {\n    if (control.$name && this[control.$name] === control) {\n      delete this[control.$name];\n    }\n    forEach(this.$pending, function(value, name) {\n      // eslint-disable-next-line no-invalid-this\n      this.$setValidity(name, null, control);\n    }, this);\n    forEach(this.$error, function(value, name) {\n      // eslint-disable-next-line no-invalid-this\n      this.$setValidity(name, null, control);\n    }, this);\n    forEach(this.$$success, function(value, name) {\n      // eslint-disable-next-line no-invalid-this\n      this.$setValidity(name, null, control);\n    }, this);\n\n    arrayRemove(this.$$controls, control);\n    control.$$parentForm = nullFormCtrl;\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setDirty\n   *\n   * @description\n   * Sets the form to a dirty state.\n   *\n   * This method can be called to add the 'ng-dirty' class and set the form to a dirty\n   * state (ng-dirty class). This method will also propagate to parent forms.\n   */\n  $setDirty: function() {\n    this.$$animate.removeClass(this.$$element, PRISTINE_CLASS);\n    this.$$animate.addClass(this.$$element, DIRTY_CLASS);\n    this.$dirty = true;\n    this.$pristine = false;\n    this.$$parentForm.$setDirty();\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setPristine\n   *\n   * @description\n   * Sets the form to its pristine state.\n   *\n   * This method sets the form's `$pristine` state to true, the `$dirty` state to false, removes\n   * the `ng-dirty` class and adds the `ng-pristine` class. Additionally, it sets the `$submitted`\n   * state to false.\n   *\n   * This method will also propagate to all the controls contained in this form.\n   *\n   * Setting a form back to a pristine state is often useful when we want to 'reuse' a form after\n   * saving or resetting it.\n   */\n  $setPristine: function() {\n    this.$$animate.setClass(this.$$element, PRISTINE_CLASS, DIRTY_CLASS + ' ' + SUBMITTED_CLASS);\n    this.$dirty = false;\n    this.$pristine = true;\n    this.$submitted = false;\n    forEach(this.$$controls, function(control) {\n      control.$setPristine();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setUntouched\n   *\n   * @description\n   * Sets the form to its untouched state.\n   *\n   * This method can be called to remove the 'ng-touched' class and set the form controls to their\n   * untouched state (ng-untouched class).\n   *\n   * Setting a form controls back to their untouched state is often useful when setting the form\n   * back to its pristine state.\n   */\n  $setUntouched: function() {\n    forEach(this.$$controls, function(control) {\n      control.$setUntouched();\n    });\n  },\n\n  /**\n   * @ngdoc method\n   * @name form.FormController#$setSubmitted\n   *\n   * @description\n   * Sets the form to its `$submitted` state. This will also set `$submitted` on all child and\n   * parent forms of the form.\n   */\n  $setSubmitted: function() {\n    var rootForm = this;\n    while (rootForm.$$parentForm && (rootForm.$$parentForm !== nullFormCtrl)) {\n      rootForm = rootForm.$$parentForm;\n    }\n    rootForm.$$setSubmitted();\n  },\n\n  $$setSubmitted: function() {\n    this.$$animate.addClass(this.$$element, SUBMITTED_CLASS);\n    this.$submitted = true;\n    forEach(this.$$controls, function(control) {\n      if (control.$$setSubmitted) {\n        control.$$setSubmitted();\n      }\n    });\n  }\n};\n\n/**\n * @ngdoc method\n * @name form.FormController#$setValidity\n *\n * @description\n * Change the validity state of the form, and notify the parent form (if any).\n *\n * Application developers will rarely need to call this method directly. It is used internally, by\n * {@link ngModel.NgModelController#$setValidity NgModelController.$setValidity()}, to propagate a\n * control's validity state to the parent `FormController`.\n *\n * @param {string} validationErrorKey Name of the validator. The `validationErrorKey` will be\n *        assigned to either `$error[validationErrorKey]` or `$pending[validationErrorKey]` (for\n *        unfulfilled `$asyncValidators`), so that it is available for data-binding. The\n *        `validationErrorKey` should be in camelCase and will get converted into dash-case for\n *        class name. Example: `myError` will result in `ng-valid-my-error` and\n *        `ng-invalid-my-error` classes and can be bound to as `{{ someForm.$error.myError }}`.\n * @param {boolean} isValid Whether the current state is valid (true), invalid (false), pending\n *        (undefined),  or skipped (null). Pending is used for unfulfilled `$asyncValidators`.\n *        Skipped is used by AngularJS when validators do not run because of parse errors and when\n *        `$asyncValidators` do not run because any of the `$validators` failed.\n * @param {NgModelController | FormController} controller - The controller whose validity state is\n *        triggering the change.\n */\naddSetValidityMethod({\n  clazz: FormController,\n  set: function(object, property, controller) {\n    var list = object[property];\n    if (!list) {\n      object[property] = [controller];\n    } else {\n      var index = list.indexOf(controller);\n      if (index === -1) {\n        list.push(controller);\n      }\n    }\n  },\n  unset: function(object, property, controller) {\n    var list = object[property];\n    if (!list) {\n      return;\n    }\n    arrayRemove(list, controller);\n    if (list.length === 0) {\n      delete object[property];\n    }\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngForm\n * @restrict EAC\n *\n * @description\n * Helper directive that makes it possible to create control groups inside a\n * {@link ng.directive:form `form`} directive.\n * These \"child forms\" can be used, for example, to determine the validity of a sub-group of\n * controls.\n *\n * <div class=\"alert alert-danger\">\n * **Note**: `ngForm` cannot be used as a replacement for `<form>`, because it lacks its\n * [built-in HTML functionality](https://html.spec.whatwg.org/#the-form-element).\n * Specifically, you cannot submit `ngForm` like a `<form>` tag. That means,\n * you cannot send data to the server with `ngForm`, or integrate it with\n * {@link ng.directive:ngSubmit `ngSubmit`}.\n * </div>\n *\n * @param {string=} ngForm|name Name of the form. If specified, the form controller will\n *                              be published into the related scope, under this name.\n *\n */\n\n /**\n * @ngdoc directive\n * @name form\n * @restrict E\n *\n * @description\n * Directive that instantiates\n * {@link form.FormController FormController}.\n *\n * If the `name` attribute is specified, the form controller is published onto the current scope under\n * this name.\n *\n * ## Alias: {@link ng.directive:ngForm `ngForm`}\n *\n * In AngularJS, forms can be nested. This means that the outer form is valid when all of the child\n * forms are valid as well. However, browsers do not allow nesting of `<form>` elements, so\n * AngularJS provides the {@link ng.directive:ngForm `ngForm`} directive, which behaves identically to\n * `form` but can be nested. Nested forms can be useful, for example, if the validity of a sub-group\n * of controls needs to be determined.\n *\n * ## CSS classes\n *  - `ng-valid` is set if the form is valid.\n *  - `ng-invalid` is set if the form is invalid.\n *  - `ng-pending` is set if the form is pending.\n *  - `ng-pristine` is set if the form is pristine.\n *  - `ng-dirty` is set if the form is dirty.\n *  - `ng-submitted` is set if the form was submitted.\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n *\n * ## Submitting a form and preventing the default action\n *\n * Since the role of forms in client-side AngularJS applications is different than in classical\n * roundtrip apps, it is desirable for the browser not to translate the form submission into a full\n * page reload that sends the data to the server. Instead some javascript logic should be triggered\n * to handle the form submission in an application-specific way.\n *\n * For this reason, AngularJS prevents the default action (form submission to the server) unless the\n * `<form>` element has an `action` attribute specified.\n *\n * You can use one of the following two ways to specify what javascript method should be called when\n * a form is submitted:\n *\n * - {@link ng.directive:ngSubmit ngSubmit} directive on the form element\n * - {@link ng.directive:ngClick ngClick} directive on the first\n  *  button or input field of type submit (input[type=submit])\n *\n * To prevent double execution of the handler, use only one of the {@link ng.directive:ngSubmit ngSubmit}\n * or {@link ng.directive:ngClick ngClick} directives.\n * This is because of the following form submission rules in the HTML specification:\n *\n * - If a form has only one input field then hitting enter in this field triggers form submit\n * (`ngSubmit`)\n * - if a form has 2+ input fields and no buttons or input[type=submit] then hitting enter\n * doesn't trigger submit\n * - if a form has one or more input fields and one or more buttons or input[type=submit] then\n * hitting enter in any of the input fields will trigger the click handler on the *first* button or\n * input[type=submit] (`ngClick`) *and* a submit handler on the enclosing form (`ngSubmit`)\n *\n * Any pending `ngModelOptions` changes will take place immediately when an enclosing form is\n * submitted. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * @animations\n * Animations in ngForm are triggered when any of the associated CSS classes are added and removed.\n * These classes are: `.ng-pristine`, `.ng-dirty`, `.ng-invalid` and `.ng-valid` as well as any\n * other validations that are performed within the form. Animations in ngForm are similar to how\n * they work in ngClass and animations can be hooked into using CSS transitions, keyframes as well\n * as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style a form element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-form {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-form.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n    <example name=\"ng-form\" deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"formExample\">\n      <file name=\"index.html\">\n       <script>\n         angular.module('formExample', [])\n           .controller('FormController', ['$scope', function($scope) {\n             $scope.userType = 'guest';\n           }]);\n       </script>\n       <style>\n        .my-form {\n          transition:all linear 0.5s;\n          background: transparent;\n        }\n        .my-form.ng-invalid {\n          background: red;\n        }\n       </style>\n       <form name=\"myForm\" ng-controller=\"FormController\" class=\"my-form\">\n         userType: <input name=\"input\" ng-model=\"userType\" required>\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">Required!</span><br>\n         <code>userType = {{userType}}</code><br>\n         <code>myForm.input.$valid = {{myForm.input.$valid}}</code><br>\n         <code>myForm.input.$error = {{myForm.input.$error}}</code><br>\n         <code>myForm.$valid = {{myForm.$valid}}</code><br>\n         <code>myForm.$error.required = {{!!myForm.$error.required}}</code><br>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should initialize to model', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n\n          expect(userType.getText()).toContain('guest');\n          expect(valid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty', function() {\n          var userType = element(by.binding('userType'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var userInput = element(by.model('userType'));\n\n          userInput.clear();\n          userInput.sendKeys('');\n\n          expect(userType.getText()).toEqual('userType =');\n          expect(valid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n *\n * @param {string=} name Name of the form. If specified, the form controller will be published into\n *                       related scope, under this name.\n */\nvar formDirectiveFactory = function(isNgForm) {\n  return ['$timeout', '$parse', function($timeout, $parse) {\n    var formDirective = {\n      name: 'form',\n      restrict: isNgForm ? 'EAC' : 'E',\n      require: ['form', '^^?form'], //first is the form's own ctrl, second is an optional parent form\n      controller: FormController,\n      compile: function ngFormCompile(formElement, attr) {\n        // Setup initial state of the control\n        formElement.addClass(PRISTINE_CLASS).addClass(VALID_CLASS);\n\n        var nameAttr = attr.name ? 'name' : (isNgForm && attr.ngForm ? 'ngForm' : false);\n\n        return {\n          pre: function ngFormPreLink(scope, formElement, attr, ctrls) {\n            var controller = ctrls[0];\n\n            // if `action` attr is not present on the form, prevent the default action (submission)\n            if (!('action' in attr)) {\n              // we can't use jq events because if a form is destroyed during submission the default\n              // action is not prevented. see #1238\n              //\n              // IE 9 is not affected because it doesn't fire a submit event and try to do a full\n              // page reload if the form was destroyed by submission of the form via a click handler\n              // on a button in the form. Looks like an IE9 specific bug.\n              var handleFormSubmission = function(event) {\n                scope.$apply(function() {\n                  controller.$commitViewValue();\n                  controller.$setSubmitted();\n                });\n\n                event.preventDefault();\n              };\n\n              formElement[0].addEventListener('submit', handleFormSubmission);\n\n              // unregister the preventDefault listener so that we don't not leak memory but in a\n              // way that will achieve the prevention of the default action.\n              formElement.on('$destroy', function() {\n                $timeout(function() {\n                  formElement[0].removeEventListener('submit', handleFormSubmission);\n                }, 0, false);\n              });\n            }\n\n            var parentFormCtrl = ctrls[1] || controller.$$parentForm;\n            parentFormCtrl.$addControl(controller);\n\n            var setter = nameAttr ? getSetter(controller.$name) : noop;\n\n            if (nameAttr) {\n              setter(scope, controller);\n              attr.$observe(nameAttr, function(newValue) {\n                if (controller.$name === newValue) return;\n                setter(scope, undefined);\n                controller.$$parentForm.$$renameControl(controller, newValue);\n                setter = getSetter(controller.$name);\n                setter(scope, controller);\n              });\n            }\n            formElement.on('$destroy', function() {\n              controller.$$parentForm.$removeControl(controller);\n              setter(scope, undefined);\n              extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards\n            });\n          }\n        };\n      }\n    };\n\n    return formDirective;\n\n    function getSetter(expression) {\n      if (expression === '') {\n        //create an assignable expression, so forms with an empty name can be renamed later\n        return $parse('this[\"\"]').assign;\n      }\n      return $parse(expression).assign || noop;\n    }\n  }];\n};\n\nvar formDirective = formDirectiveFactory();\nvar ngFormDirective = formDirectiveFactory(true);\n\n\n\n// helper methods\nfunction setupValidity(instance) {\n  instance.$$classCache = {};\n  instance.$$classCache[INVALID_CLASS] = !(instance.$$classCache[VALID_CLASS] = instance.$$element.hasClass(VALID_CLASS));\n}\nfunction addSetValidityMethod(context) {\n  var clazz = context.clazz,\n      set = context.set,\n      unset = context.unset;\n\n  clazz.prototype.$setValidity = function(validationErrorKey, state, controller) {\n    if (isUndefined(state)) {\n      createAndSet(this, '$pending', validationErrorKey, controller);\n    } else {\n      unsetAndCleanup(this, '$pending', validationErrorKey, controller);\n    }\n    if (!isBoolean(state)) {\n      unset(this.$error, validationErrorKey, controller);\n      unset(this.$$success, validationErrorKey, controller);\n    } else {\n      if (state) {\n        unset(this.$error, validationErrorKey, controller);\n        set(this.$$success, validationErrorKey, controller);\n      } else {\n        set(this.$error, validationErrorKey, controller);\n        unset(this.$$success, validationErrorKey, controller);\n      }\n    }\n    if (this.$pending) {\n      cachedToggleClass(this, PENDING_CLASS, true);\n      this.$valid = this.$invalid = undefined;\n      toggleValidationCss(this, '', null);\n    } else {\n      cachedToggleClass(this, PENDING_CLASS, false);\n      this.$valid = isObjectEmpty(this.$error);\n      this.$invalid = !this.$valid;\n      toggleValidationCss(this, '', this.$valid);\n    }\n\n    // re-read the state as the set/unset methods could have\n    // combined state in this.$error[validationError] (used for forms),\n    // where setting/unsetting only increments/decrements the value,\n    // and does not replace it.\n    var combinedState;\n    if (this.$pending && this.$pending[validationErrorKey]) {\n      combinedState = undefined;\n    } else if (this.$error[validationErrorKey]) {\n      combinedState = false;\n    } else if (this.$$success[validationErrorKey]) {\n      combinedState = true;\n    } else {\n      combinedState = null;\n    }\n\n    toggleValidationCss(this, validationErrorKey, combinedState);\n    this.$$parentForm.$setValidity(validationErrorKey, combinedState, this);\n  };\n\n  function createAndSet(ctrl, name, value, controller) {\n    if (!ctrl[name]) {\n      ctrl[name] = {};\n    }\n    set(ctrl[name], value, controller);\n  }\n\n  function unsetAndCleanup(ctrl, name, value, controller) {\n    if (ctrl[name]) {\n      unset(ctrl[name], value, controller);\n    }\n    if (isObjectEmpty(ctrl[name])) {\n      ctrl[name] = undefined;\n    }\n  }\n\n  function cachedToggleClass(ctrl, className, switchValue) {\n    if (switchValue && !ctrl.$$classCache[className]) {\n      ctrl.$$animate.addClass(ctrl.$$element, className);\n      ctrl.$$classCache[className] = true;\n    } else if (!switchValue && ctrl.$$classCache[className]) {\n      ctrl.$$animate.removeClass(ctrl.$$element, className);\n      ctrl.$$classCache[className] = false;\n    }\n  }\n\n  function toggleValidationCss(ctrl, validationErrorKey, isValid) {\n    validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';\n\n    cachedToggleClass(ctrl, VALID_CLASS + validationErrorKey, isValid === true);\n    cachedToggleClass(ctrl, INVALID_CLASS + validationErrorKey, isValid === false);\n  }\n}\n\nfunction isObjectEmpty(obj) {\n  if (obj) {\n    for (var prop in obj) {\n      if (obj.hasOwnProperty(prop)) {\n        return false;\n      }\n    }\n  }\n  return true;\n}\n\n/* global\n  VALID_CLASS: false,\n  INVALID_CLASS: false,\n  PRISTINE_CLASS: false,\n  DIRTY_CLASS: false,\n  ngModelMinErr: false\n*/\n\n// Regex code was initially obtained from SO prior to modification: https://stackoverflow.com/questions/3143070/javascript-regex-iso-datetime#answer-3143231\nvar ISO_DATE_REGEXP = /^\\d{4,}-[01]\\d-[0-3]\\dT[0-2]\\d:[0-5]\\d:[0-5]\\d\\.\\d+(?:[+-][0-2]\\d:[0-5]\\d|Z)$/;\n// See valid URLs in RFC3987 (http://tools.ietf.org/html/rfc3987)\n// Note: We are being more lenient, because browsers are too.\n//   1. Scheme\n//   2. Slashes\n//   3. Username\n//   4. Password\n//   5. Hostname\n//   6. Port\n//   7. Path\n//   8. Query\n//   9. Fragment\n//                 1111111111111111 222   333333    44444        55555555555555555555555     666     77777777     8888888     999\nvar URL_REGEXP = /^[a-z][a-z\\d.+-]*:\\/*(?:[^:@]+(?::[^@]+)?@)?(?:[^\\s:/?#]+|\\[[a-f\\d:]+])(?::\\d+)?(?:\\/[^?#]*)?(?:\\?[^#]*)?(?:#.*)?$/i;\n// eslint-disable-next-line max-len\nvar EMAIL_REGEXP = /^(?=.{1,254}$)(?=.{1,64}@)[-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+(\\.[-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+)*@[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?(\\.[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?)*$/;\nvar NUMBER_REGEXP = /^\\s*(-|\\+)?(\\d+|(\\d*(\\.\\d*)))([eE][+-]?\\d+)?\\s*$/;\nvar DATE_REGEXP = /^(\\d{4,})-(\\d{2})-(\\d{2})$/;\nvar DATETIMELOCAL_REGEXP = /^(\\d{4,})-(\\d\\d)-(\\d\\d)T(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\nvar WEEK_REGEXP = /^(\\d{4,})-W(\\d\\d)$/;\nvar MONTH_REGEXP = /^(\\d{4,})-(\\d\\d)$/;\nvar TIME_REGEXP = /^(\\d\\d):(\\d\\d)(?::(\\d\\d)(\\.\\d{1,3})?)?$/;\n\nvar PARTIAL_VALIDATION_EVENTS = 'keydown wheel mousedown';\nvar PARTIAL_VALIDATION_TYPES = createMap();\nforEach('date,datetime-local,month,time,week'.split(','), function(type) {\n  PARTIAL_VALIDATION_TYPES[type] = true;\n});\n\nvar inputType = {\n\n  /**\n   * @ngdoc input\n   * @name input[text]\n   *\n   * @description\n   * Standard HTML text input with AngularJS data binding, inherited by most of the `input` elements.\n   *\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Adds `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {boolean=} [ngTrim=true] If set to false AngularJS will not automatically trim the input.\n   *    This parameter is ignored for input[type=password] controls, which will never trim the\n   *    input.\n   *\n   * @example\n      <example name=\"text-input-directive\" module=\"textInputExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('textInputExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 text: 'guest',\n                 word: /^\\s*\\w*\\s*$/\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Single word:\n             <input type=\"text\" name=\"input\" ng-model=\"example.text\"\n                    ng-pattern=\"example.word\" required ng-trim=\"false\">\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.pattern\">\n               Single word only!</span>\n           </div>\n           <code>text = {{example.text}}</code><br/>\n           <code>myForm.input.$valid = {{myForm.input.$valid}}</code><br/>\n           <code>myForm.input.$error = {{myForm.input.$error}}</code><br/>\n           <code>myForm.$valid = {{myForm.$valid}}</code><br/>\n           <code>myForm.$error.required = {{!!myForm.$error.required}}</code><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('example.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('guest');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if multi word', function() {\n            input.clear();\n            input.sendKeys('hello world');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'text': textInputType,\n\n    /**\n     * @ngdoc input\n     * @name input[date]\n     *\n     * @description\n     * Input with date validation and transformation. In browsers that do not yet support\n     * the HTML5 date input, a text element will be used. In that case, text must be entered in a valid ISO-8601\n     * date format (yyyy-MM-dd), for example: `2009-01-06`. Since many\n     * modern browsers do not yet support this input type, it is important to provide cues to users on the\n     * expected input format via a placeholder or label.\n     *\n     * The model must always be a Date object, otherwise AngularJS will throw an error.\n     * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n     *\n     * The timezone to be used to read/write the `Date` instance in the model can be defined using\n     * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n     *\n     * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n     * @param {string=} name Property name of the form under which the control is published.\n     * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be a\n     *   valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute\n     *   (e.g. `min=\"{{minDate | date:'yyyy-MM-dd'}}\"`). Note that `min` will also add native HTML5\n     *   constraint validation.\n     * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must be\n     *   a valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute\n     *   (e.g. `max=\"{{maxDate | date:'yyyy-MM-dd'}}\"`). Note that `max` will also add native HTML5\n     *   constraint validation.\n     * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO date string\n     *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n     * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO date string\n     *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n     * @param {string=} required Sets `required` validation error key if the value is not entered.\n     * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n     *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n     *    `required` when you want to data-bind to the `required` attribute.\n     * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n     *    interaction with the input element.\n     *\n     * @example\n     <example name=\"date-input-directive\" module=\"dateInputExample\">\n     <file name=\"index.html\">\n       <script>\n          angular.module('dateInputExample', [])\n            .controller('DateController', ['$scope', function($scope) {\n              $scope.example = {\n                value: new Date(2013, 9, 22)\n              };\n            }]);\n       </script>\n       <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n          <label for=\"exampleInput\">Pick a date in 2013:</label>\n          <input type=\"date\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n              placeholder=\"yyyy-MM-dd\" min=\"2013-01-01\" max=\"2013-12-31\" required />\n          <div role=\"alert\">\n            <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n                Required!</span>\n            <span class=\"error\" ng-show=\"myForm.input.$error.date\">\n                Not a valid date!</span>\n           </div>\n           <tt>value = {{example.value | date: \"yyyy-MM-dd\"}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n       </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n        var value = element(by.binding('example.value | date: \"yyyy-MM-dd\"'));\n        var valid = element(by.binding('myForm.input.$valid'));\n\n        // currently protractor/webdriver does not support\n        // sending keys to all known HTML5 input controls\n        // for various browsers (see https://github.com/angular/protractor/issues/562).\n        function setInput(val) {\n          // set the value of the element and force validation.\n          var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n          \"ipt.value = '\" + val + \"';\" +\n          \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n          browser.executeScript(scr);\n        }\n\n        it('should initialize to model', function() {\n          expect(value.getText()).toContain('2013-10-22');\n          expect(valid.getText()).toContain('myForm.input.$valid = true');\n        });\n\n        it('should be invalid if empty', function() {\n          setInput('');\n          expect(value.getText()).toEqual('value =');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n\n        it('should be invalid if over max', function() {\n          setInput('2015-01-01');\n          expect(value.getText()).toContain('');\n          expect(valid.getText()).toContain('myForm.input.$valid = false');\n        });\n     </file>\n     </example>\n     */\n  'date': createDateInputType('date', DATE_REGEXP,\n         createDateParser(DATE_REGEXP, ['yyyy', 'MM', 'dd']),\n         'yyyy-MM-dd'),\n\n   /**\n    * @ngdoc input\n    * @name input[datetime-local]\n    *\n    * @description\n    * Input with datetime validation and transformation. In browsers that do not yet support\n    * the HTML5 date input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * local datetime format (yyyy-MM-ddTHH:mm:ss), for example: `2010-12-28T14:57:00`.\n    *\n    * The model must always be a Date object, otherwise AngularJS will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * The format of the displayed time can be adjusted with the\n    * {@link ng.directive:ngModelOptions#ngModelOptions-arguments ngModelOptions} `timeSecondsFormat`\n    * and `timeStripZeroSeconds`.\n    *\n    * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation\n    *   inside this attribute (e.g. `min=\"{{minDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}\"`).\n    *   Note that `min` will also add native HTML5 constraint validation.\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation\n    *   inside this attribute (e.g. `max=\"{{maxDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}\"`).\n    *   Note that `max` will also add native HTML5 constraint validation.\n    * @param {(date|string)=} ngMin Sets the `min` validation error key to the Date / ISO datetime string\n    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n    * @param {(date|string)=} ngMax Sets the `max` validation error key to the Date / ISO datetime string\n    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"datetimelocal-input-directive\" module=\"dateExample\">\n    <file name=\"index.html\">\n      <script>\n        angular.module('dateExample', [])\n          .controller('DateController', ['$scope', function($scope) {\n            $scope.example = {\n              value: new Date(2010, 11, 28, 14, 57)\n            };\n          }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label for=\"exampleInput\">Pick a date between in 2013:</label>\n        <input type=\"datetime-local\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"yyyy-MM-ddTHH:mm:ss\" min=\"2001-01-01T00:00:00\" max=\"2013-12-31T00:00:00\" required />\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.datetimelocal\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"yyyy-MM-ddTHH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM-ddTHH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2010-12-28T14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01-01T23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'datetime-local': createDateInputType('datetimelocal', DATETIMELOCAL_REGEXP,\n      createDateParser(DATETIMELOCAL_REGEXP, ['yyyy', 'MM', 'dd', 'HH', 'mm', 'ss', 'sss']),\n      'yyyy-MM-ddTHH:mm:ss.sss'),\n\n  /**\n   * @ngdoc input\n   * @name input[time]\n   *\n   * @description\n   * Input with time validation and transformation. In browsers that do not yet support\n   * the HTML5 time input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * local time format (HH:mm:ss), for example: `14:57:00`. Model must be a Date object. This binding will always output a\n   * Date object to the model of January 1, 1970, or local date `new Date(1970, 0, 1, HH, mm, ss)`.\n   *\n   * The model must always be a Date object, otherwise AngularJS will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions#ngModelOptions-arguments ngModelOptions}. By default,\n   * this is the timezone of the browser.\n   *\n   * The format of the displayed time can be adjusted with the\n   * {@link ng.directive:ngModelOptions#ngModelOptions-arguments ngModelOptions} `timeSecondsFormat`\n   * and `timeStripZeroSeconds`.\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this\n   *   attribute (e.g. `min=\"{{minTime | date:'HH:mm:ss'}}\"`). Note that `min` will also add\n   *   native HTML5 constraint validation.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this\n   *   attribute (e.g. `max=\"{{maxTime | date:'HH:mm:ss'}}\"`). Note that `max` will also add\n   *   native HTML5 constraint validation.\n   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO time string the\n   *   `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO time string the\n   *   `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"time-input-directive\" module=\"timeExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('timeExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(1970, 0, 1, 14, 57, 0)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label for=\"exampleInput\">Pick a time between 8am and 5pm:</label>\n        <input type=\"time\" id=\"exampleInput\" name=\"input\" ng-model=\"example.value\"\n            placeholder=\"HH:mm:ss\" min=\"08:00:00\" max=\"17:00:00\" required />\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.time\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"HH:mm:ss\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"HH:mm:ss\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('14:57:00');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('23:59:00');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'time': createDateInputType('time', TIME_REGEXP,\n      createDateParser(TIME_REGEXP, ['HH', 'mm', 'ss', 'sss']),\n     'HH:mm:ss.sss'),\n\n   /**\n    * @ngdoc input\n    * @name input[week]\n    *\n    * @description\n    * Input with week-of-the-year validation and transformation to Date. In browsers that do not yet support\n    * the HTML5 week input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n    * week format (yyyy-W##), for example: `2013-W02`.\n    *\n    * The model must always be a Date object, otherwise AngularJS will throw an error.\n    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n    *\n    * The value of the resulting Date object will be set to Thursday at 00:00:00 of the requested week,\n    * due to ISO-8601 week numbering standards. Information on ISO's system for numbering the weeks of the\n    * year can be found at: https://en.wikipedia.org/wiki/ISO_8601#Week_dates\n    *\n    * The timezone to be used to read/write the `Date` instance in the model can be defined using\n    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n    *\n    * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n    * @param {string=} name Property name of the form under which the control is published.\n    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this\n    *   attribute (e.g. `min=\"{{minWeek | date:'yyyy-Www'}}\"`). Note that `min` will also add\n    *   native HTML5 constraint validation.\n    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this\n    *   attribute (e.g. `max=\"{{maxWeek | date:'yyyy-Www'}}\"`). Note that `max` will also add\n    *   native HTML5 constraint validation.\n    * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string\n    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n    * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string\n    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n    * @param {string=} required Sets `required` validation error key if the value is not entered.\n    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n    *    `required` when you want to data-bind to the `required` attribute.\n    * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n    *    interaction with the input element.\n    *\n    * @example\n    <example name=\"week-input-directive\" module=\"weekExample\">\n    <file name=\"index.html\">\n      <script>\n      angular.module('weekExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 0, 3)\n          };\n        }]);\n      </script>\n      <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n        <label>Pick a date between in 2013:\n          <input id=\"exampleInput\" type=\"week\" name=\"input\" ng-model=\"example.value\"\n                 placeholder=\"YYYY-W##\" min=\"2012-W32\"\n                 max=\"2013-W52\" required />\n        </label>\n        <div role=\"alert\">\n          <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n              Required!</span>\n          <span class=\"error\" ng-show=\"myForm.input.$error.week\">\n              Not a valid date!</span>\n        </div>\n        <tt>value = {{example.value | date: \"yyyy-Www\"}}</tt><br/>\n        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-Www\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-W01');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-W01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n    </file>\n    </example>\n    */\n  'week': createDateInputType('week', WEEK_REGEXP, weekParser, 'yyyy-Www'),\n\n  /**\n   * @ngdoc input\n   * @name input[month]\n   *\n   * @description\n   * Input with month validation and transformation. In browsers that do not yet support\n   * the HTML5 month input, a text element will be used. In that case, the text must be entered in a valid ISO-8601\n   * month format (yyyy-MM), for example: `2009-01`.\n   *\n   * The model must always be a Date object, otherwise AngularJS will throw an error.\n   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.\n   * If the model is not set to the first of the month, the next view to model update will set it\n   * to the first of the month.\n   *\n   * The timezone to be used to read/write the `Date` instance in the model can be defined using\n   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this\n   *   attribute (e.g. `min=\"{{minMonth | date:'yyyy-MM'}}\"`). Note that `min` will also add\n   *   native HTML5 constraint validation.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this\n   *   attribute (e.g. `max=\"{{maxMonth | date:'yyyy-MM'}}\"`). Note that `max` will also add\n   *   native HTML5 constraint validation.\n   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string\n   *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.\n   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string\n   *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.\n\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n   <example name=\"month-input-directive\" module=\"monthExample\">\n   <file name=\"index.html\">\n     <script>\n      angular.module('monthExample', [])\n        .controller('DateController', ['$scope', function($scope) {\n          $scope.example = {\n            value: new Date(2013, 9, 1)\n          };\n        }]);\n     </script>\n     <form name=\"myForm\" ng-controller=\"DateController as dateCtrl\">\n       <label for=\"exampleInput\">Pick a month in 2013:</label>\n       <input id=\"exampleInput\" type=\"month\" name=\"input\" ng-model=\"example.value\"\n          placeholder=\"yyyy-MM\" min=\"2013-01\" max=\"2013-12\" required />\n       <div role=\"alert\">\n         <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n            Required!</span>\n         <span class=\"error\" ng-show=\"myForm.input.$error.month\">\n            Not a valid month!</span>\n       </div>\n       <tt>value = {{example.value | date: \"yyyy-MM\"}}</tt><br/>\n       <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n       <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n       <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n       <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n     </form>\n   </file>\n   <file name=\"protractor.js\" type=\"protractor\">\n      var value = element(by.binding('example.value | date: \"yyyy-MM\"'));\n      var valid = element(by.binding('myForm.input.$valid'));\n\n      // currently protractor/webdriver does not support\n      // sending keys to all known HTML5 input controls\n      // for various browsers (https://github.com/angular/protractor/issues/562).\n      function setInput(val) {\n        // set the value of the element and force validation.\n        var scr = \"var ipt = document.getElementById('exampleInput'); \" +\n        \"ipt.value = '\" + val + \"';\" +\n        \"angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('\" + val + \"'); });\";\n        browser.executeScript(scr);\n      }\n\n      it('should initialize to model', function() {\n        expect(value.getText()).toContain('2013-10');\n        expect(valid.getText()).toContain('myForm.input.$valid = true');\n      });\n\n      it('should be invalid if empty', function() {\n        setInput('');\n        expect(value.getText()).toEqual('value =');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n\n      it('should be invalid if over max', function() {\n        setInput('2015-01');\n        expect(value.getText()).toContain('');\n        expect(valid.getText()).toContain('myForm.input.$valid = false');\n      });\n   </file>\n   </example>\n   */\n  'month': createDateInputType('month', MONTH_REGEXP,\n     createDateParser(MONTH_REGEXP, ['yyyy', 'MM']),\n     'yyyy-MM'),\n\n  /**\n   * @ngdoc input\n   * @name input[number]\n   *\n   * @description\n   * Text input with number validation and transformation. Sets the `number` validation\n   * error if not a valid number.\n   *\n   * <div class=\"alert alert-warning\">\n   * The model must always be of type `number` otherwise AngularJS will throw an error.\n   * Be aware that a string containing a number is not enough. See the {@link ngModel:numfmt}\n   * error docs for more information and an example of how to convert your model if necessary.\n   * </div>\n   *\n   *\n   *\n   * @knownIssue\n   *\n   * ### HTML5 constraint validation and `allowInvalid`\n   *\n   * In browsers that follow the\n   * [HTML5 specification](https://html.spec.whatwg.org/multipage/forms.html#number-state-%28type=number%29),\n   * `input[number]` does not work as expected with {@link ngModelOptions `ngModelOptions.allowInvalid`}.\n   * If a non-number is entered in the input, the browser will report the value as an empty string,\n   * which means the view / model values in `ngModel` and subsequently the scope value\n   * will also be an empty string.\n   *\n   * @knownIssue\n   *\n   * ### Large numbers and `step` validation\n   *\n   * The `step` validation will not work correctly for very large numbers (e.g. 9999999999) due to\n   * Javascript's arithmetic limitations. If you need to handle large numbers, purpose-built\n   * libraries (e.g. https://github.com/MikeMcl/big.js/), can be included into AngularJS by\n   * {@link guide/forms#modifying-built-in-validators overwriting the validators}\n   * for `number` and / or `step`, or by {@link guide/forms#custom-validation applying custom validators}\n   * to an `input[text]` element. The source for `input[number]` type can be used as a starting\n   * point for both implementations.\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.\n   *    Can be interpolated.\n   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.\n   *    Can be interpolated.\n   * @param {string=} ngMin Like `min`, sets the `min` validation error key if the value entered is less than `ngMin`,\n   *    but does not trigger HTML5 native validation. Takes an expression.\n   * @param {string=} ngMax Like `max`, sets the `max` validation error key if the value entered is greater than `ngMax`,\n   *    but does not trigger HTML5 native validation. Takes an expression.\n   * @param {string=} step Sets the `step` validation error key if the value entered does not fit the `step` constraint.\n   *    Can be interpolated.\n   * @param {string=} ngStep Like `step`, sets the `step` validation error key if the value entered does not fit the `ngStep` constraint,\n   *    but does not trigger HTML5 native validation. Takes an expression.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"number-input-directive\" module=\"numberExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('numberExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.example = {\n                 value: 12\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Number:\n             <input type=\"number\" name=\"input\" ng-model=\"example.value\"\n                    min=\"0\" max=\"99\" required>\n          </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.number\">\n               Not valid number!</span>\n           </div>\n           <tt>value = {{example.value}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var value = element(by.binding('example.value'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('example.value'));\n\n          it('should initialize to model', function() {\n            expect(value.getText()).toContain('12');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if over max', function() {\n            input.clear();\n            input.sendKeys('123');\n            expect(value.getText()).toEqual('value =');\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'number': numberInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[url]\n   *\n   * @description\n   * Text input with URL validation. Sets the `url` validation error key if the content is not a\n   * valid URL.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[url]` uses a regex to validate urls that is derived from the regex\n   * used in Chromium. If you need stricter validation, you can use `ng-pattern` or modify\n   * the built-in validators (see the {@link guide/forms Forms guide})\n   * </div>\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"url-input-directive\" module=\"urlExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('urlExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.url = {\n                 text: 'http://google.com'\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>URL:\n             <input type=\"url\" name=\"input\" ng-model=\"url.text\" required>\n           <label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n               Required!</span>\n             <span class=\"error\" ng-show=\"myForm.input.$error.url\">\n               Not valid url!</span>\n           </div>\n           <tt>text = {{url.text}}</tt><br/>\n           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n           <tt>myForm.$error.url = {{!!myForm.$error.url}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('url.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('url.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('http://google.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not url', function() {\n            input.clear();\n            input.sendKeys('box');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'url': urlInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[email]\n   *\n   * @description\n   * Text input with email validation. Sets the `email` validation error key if not a valid email\n   * address.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** `input[email]` uses a regex to validate email addresses that is derived from the regex\n   * used in Chromium, which may not fulfill your app's requirements.\n   * If you need stricter (e.g. requiring a top-level domain), or more relaxed validation\n   * (e.g. allowing IPv6 address literals) you can use `ng-pattern` or\n   * modify the built-in validators (see the {@link guide/forms Forms guide}).\n   * </div>\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} required Sets `required` validation error key if the value is not entered.\n   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n   *    `required` when you want to data-bind to the `required` attribute.\n   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n   *    minlength.\n   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of\n   *    any length.\n   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string\n   *    that contains the regular expression body that will be converted to a regular expression\n   *    as in the ngPattern directive.\n   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n   *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n   *    If the expression evaluates to a RegExp object, then this is used directly.\n   *    If the expression evaluates to a string, then it will be converted to a RegExp\n   *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n   *    `new RegExp('^abc$')`.<br />\n   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n   *    start at the index of the last search's match, thus not taking the whole input value into\n   *    account.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"email-input-directive\" module=\"emailExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('emailExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.email = {\n                 text: 'me@example.com'\n               };\n             }]);\n         </script>\n           <form name=\"myForm\" ng-controller=\"ExampleController\">\n             <label>Email:\n               <input type=\"email\" name=\"input\" ng-model=\"email.text\" required>\n             </label>\n             <div role=\"alert\">\n               <span class=\"error\" ng-show=\"myForm.input.$error.required\">\n                 Required!</span>\n               <span class=\"error\" ng-show=\"myForm.input.$error.email\">\n                 Not valid email!</span>\n             </div>\n             <tt>text = {{email.text}}</tt><br/>\n             <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>\n             <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>\n             <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n             <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n             <tt>myForm.$error.email = {{!!myForm.$error.email}}</tt><br/>\n           </form>\n         </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          var text = element(by.binding('email.text'));\n          var valid = element(by.binding('myForm.input.$valid'));\n          var input = element(by.model('email.text'));\n\n          it('should initialize to model', function() {\n            expect(text.getText()).toContain('me@example.com');\n            expect(valid.getText()).toContain('true');\n          });\n\n          it('should be invalid if empty', function() {\n            input.clear();\n            input.sendKeys('');\n            expect(text.getText()).toEqual('text =');\n            expect(valid.getText()).toContain('false');\n          });\n\n          it('should be invalid if not email', function() {\n            input.clear();\n            input.sendKeys('xxx');\n\n            expect(valid.getText()).toContain('false');\n          });\n        </file>\n      </example>\n   */\n  'email': emailInputType,\n\n\n  /**\n   * @ngdoc input\n   * @name input[radio]\n   *\n   * @description\n   * HTML radio button.\n   *\n   * **Note:**<br>\n   * All inputs controlled by {@link ngModel ngModel} (including those of type `radio`) will use the\n   * value of their `name` attribute to determine the property under which their\n   * {@link ngModel.NgModelController NgModelController} will be published on the parent\n   * {@link form.FormController FormController}. Thus, if you use the same `name` for multiple\n   * inputs of a form (e.g. a group of radio inputs), only _one_ `NgModelController` will be\n   * published on the parent `FormController` under that name. The rest of the controllers will\n   * continue to work as expected, but you won't be able to access them as properties on the parent\n   * `FormController`.\n   *\n   * <div class=\"alert alert-info\">\n   *   <p>\n   *     In plain HTML forms, the `name` attribute is used to identify groups of radio inputs, so\n   *     that the browser can manage their state (checked/unchecked) based on the state of other\n   *     inputs in the same group.\n   *   </p>\n   *   <p>\n   *     In AngularJS forms, this is not necessary. The input's state will be updated based on the\n   *     value of the underlying model data.\n   *   </p>\n   * </div>\n   *\n   * <div class=\"alert alert-success\">\n   *   If you omit the `name` attribute on a radio input, `ngModel` will automatically assign it a\n   *   unique name.\n   * </div>\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string} value The value to which the `ngModel` expression should be set when selected.\n   *    Note that `value` only supports `string` values, i.e. the scope model needs to be a string,\n   *    too. Use `ngValue` if you need complex models (`number`, `object`, ...).\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   * @param {string} ngValue AngularJS expression to which `ngModel` will be be set when the radio\n   *    is selected. Should be used instead of the `value` attribute if you need\n   *    a non-string `ngModel` (`boolean`, `array`, ...).\n   *\n   * @example\n      <example name=\"radio-input-directive\" module=\"radioExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('radioExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.color = {\n                 name: 'blue'\n               };\n               $scope.specialValue = {\n                 \"id\": \"12345\",\n                 \"value\": \"green\"\n               };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" value=\"red\">\n             Red\n           </label><br/>\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" ng-value=\"specialValue\">\n             Green\n           </label><br/>\n           <label>\n             <input type=\"radio\" ng-model=\"color.name\" value=\"blue\">\n             Blue\n           </label><br/>\n           <tt>color = {{color.name | json}}</tt><br/>\n          </form>\n          Note that `ng-value=\"specialValue\"` sets radio item's value to be the value of `$scope.specialValue`.\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var inputs = element.all(by.model('color.name'));\n            var color = element(by.binding('color.name'));\n\n            expect(color.getText()).toContain('blue');\n\n            inputs.get(0).click();\n            expect(color.getText()).toContain('red');\n\n            inputs.get(1).click();\n            expect(color.getText()).toContain('green');\n          });\n        </file>\n      </example>\n   */\n  'radio': radioInputType,\n\n  /**\n   * @ngdoc input\n   * @name input[range]\n   *\n   * @description\n   * Native range input with validation and transformation.\n   *\n   * The model for the range input must always be a `Number`.\n   *\n   * IE9 and other browsers that do not support the `range` type fall back\n   * to a text input without any default values for `min`, `max` and `step`. Model binding,\n   * validation and number parsing are nevertheless supported.\n   *\n   * Browsers that support range (latest Chrome, Safari, Firefox, Edge) treat `input[range]`\n   * in a way that never allows the input to hold an invalid value. That means:\n   * - any non-numerical value is set to `(max + min) / 2`.\n   * - any numerical value that is less than the current min val, or greater than the current max val\n   * is set to the min / max val respectively.\n   * - additionally, the current `step` is respected, so the nearest value that satisfies a step\n   * is used.\n   *\n   * See the [HTML Spec on input[type=range]](https://www.w3.org/TR/html5/forms.html#range-state-(type=range))\n   * for more info.\n   *\n   * This has the following consequences for AngularJS:\n   *\n   * Since the element value should always reflect the current model value, a range input\n   * will set the bound ngModel expression to the value that the browser has set for the\n   * input element. For example, in the following input `<input type=\"range\" ng-model=\"model.value\">`,\n   * if the application sets `model.value = null`, the browser will set the input to `'50'`.\n   * AngularJS will then set the model to `50`, to prevent input and model value being out of sync.\n   *\n   * That means the model for range will immediately be set to `50` after `ngModel` has been\n   * initialized. It also means a range input can never have the required error.\n   *\n   * This does not only affect changes to the model value, but also to the values of the `min`,\n   * `max`, and `step` attributes. When these change in a way that will cause the browser to modify\n   * the input value, AngularJS will also update the model value.\n   *\n   * Automatic value adjustment also means that a range input element can never have the `required`,\n   * `min`, or `max` errors.\n   *\n   * However, `step` is currently only fully implemented by Firefox. Other browsers have problems\n   * when the step value changes dynamically - they do not adjust the element value correctly, but\n   * instead may set the `stepMismatch` error. If that's the case, the AngularJS will set the `step`\n   * error on the input, and set the model to `undefined`.\n   *\n   * Note that `input[range]` is not compatible with`ngMax`, `ngMin`, and `ngStep`, because they do\n   * not set the `min` and `max` attributes, which means that the browser won't automatically adjust\n   * the input value based on their values, and will always assume min = 0, max = 100, and step = 1.\n   *\n   * @param {string}  ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {string=} min Sets the `min` validation to ensure that the value entered is greater\n   *                  than `min`. Can be interpolated.\n   * @param {string=} max Sets the `max` validation to ensure that the value entered is less than `max`.\n   *                  Can be interpolated.\n   * @param {string=} step Sets the `step` validation to ensure that the value entered matches the `step`\n   *                  Can be interpolated.\n   * @param {expression=} ngChange AngularJS expression to be executed when the ngModel value changes due\n   *                      to user interaction with the input element.\n   * @param {expression=} ngChecked If the expression is truthy, then the `checked` attribute will be set on the\n   *                      element. **Note** : `ngChecked` should not be used alongside `ngModel`.\n   *                      Checkout {@link ng.directive:ngChecked ngChecked} for usage.\n   *\n   * @example\n      <example name=\"range-input-directive\" module=\"rangeExample\">\n        <file name=\"index.html\">\n          <script>\n            angular.module('rangeExample', [])\n              .controller('ExampleController', ['$scope', function($scope) {\n                $scope.value = 75;\n                $scope.min = 10;\n                $scope.max = 90;\n              }]);\n          </script>\n          <form name=\"myForm\" ng-controller=\"ExampleController\">\n\n            Model as range: <input type=\"range\" name=\"range\" ng-model=\"value\" min=\"{{min}}\"  max=\"{{max}}\">\n            <hr>\n            Model as number: <input type=\"number\" ng-model=\"value\"><br>\n            Min: <input type=\"number\" ng-model=\"min\"><br>\n            Max: <input type=\"number\" ng-model=\"max\"><br>\n            value = <code>{{value}}</code><br/>\n            myForm.range.$valid = <code>{{myForm.range.$valid}}</code><br/>\n            myForm.range.$error = <code>{{myForm.range.$error}}</code>\n          </form>\n        </file>\n      </example>\n\n   * ## Range Input with ngMin & ngMax attributes\n\n   * @example\n      <example name=\"range-input-directive-ng\" module=\"rangeExample\">\n        <file name=\"index.html\">\n          <script>\n            angular.module('rangeExample', [])\n              .controller('ExampleController', ['$scope', function($scope) {\n                $scope.value = 75;\n                $scope.min = 10;\n                $scope.max = 90;\n              }]);\n          </script>\n          <form name=\"myForm\" ng-controller=\"ExampleController\">\n            Model as range: <input type=\"range\" name=\"range\" ng-model=\"value\" ng-min=\"min\" ng-max=\"max\">\n            <hr>\n            Model as number: <input type=\"number\" ng-model=\"value\"><br>\n            Min: <input type=\"number\" ng-model=\"min\"><br>\n            Max: <input type=\"number\" ng-model=\"max\"><br>\n            value = <code>{{value}}</code><br/>\n            myForm.range.$valid = <code>{{myForm.range.$valid}}</code><br/>\n            myForm.range.$error = <code>{{myForm.range.$error}}</code>\n          </form>\n        </file>\n      </example>\n\n   */\n  'range': rangeInputType,\n\n  /**\n   * @ngdoc input\n   * @name input[checkbox]\n   *\n   * @description\n   * HTML checkbox.\n   *\n   * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n   * @param {string=} name Property name of the form under which the control is published.\n   * @param {expression=} ngTrueValue The value to which the expression should be set when selected.\n   * @param {expression=} ngFalseValue The value to which the expression should be set when not selected.\n   * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n   *    interaction with the input element.\n   *\n   * @example\n      <example name=\"checkbox-input-directive\" module=\"checkboxExample\">\n        <file name=\"index.html\">\n         <script>\n           angular.module('checkboxExample', [])\n             .controller('ExampleController', ['$scope', function($scope) {\n               $scope.checkboxModel = {\n                value1 : true,\n                value2 : 'YES'\n              };\n             }]);\n         </script>\n         <form name=\"myForm\" ng-controller=\"ExampleController\">\n           <label>Value1:\n             <input type=\"checkbox\" ng-model=\"checkboxModel.value1\">\n           </label><br/>\n           <label>Value2:\n             <input type=\"checkbox\" ng-model=\"checkboxModel.value2\"\n                    ng-true-value=\"'YES'\" ng-false-value=\"'NO'\">\n            </label><br/>\n           <tt>value1 = {{checkboxModel.value1}}</tt><br/>\n           <tt>value2 = {{checkboxModel.value2}}</tt><br/>\n          </form>\n        </file>\n        <file name=\"protractor.js\" type=\"protractor\">\n          it('should change state', function() {\n            var value1 = element(by.binding('checkboxModel.value1'));\n            var value2 = element(by.binding('checkboxModel.value2'));\n\n            expect(value1.getText()).toContain('true');\n            expect(value2.getText()).toContain('YES');\n\n            element(by.model('checkboxModel.value1')).click();\n            element(by.model('checkboxModel.value2')).click();\n\n            expect(value1.getText()).toContain('false');\n            expect(value2.getText()).toContain('NO');\n          });\n        </file>\n      </example>\n   */\n  'checkbox': checkboxInputType,\n\n  'hidden': noop,\n  'button': noop,\n  'submit': noop,\n  'reset': noop,\n  'file': noop\n};\n\nfunction stringBasedInputType(ctrl) {\n  ctrl.$formatters.push(function(value) {\n    return ctrl.$isEmpty(value) ? value : value.toString();\n  });\n}\n\nfunction textInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n}\n\nfunction baseInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  var type = lowercase(element[0].type);\n\n  // In composition mode, users are still inputting intermediate text buffer,\n  // hold the listener until composition is done.\n  // More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent\n  if (!$sniffer.android) {\n    var composing = false;\n\n    element.on('compositionstart', function() {\n      composing = true;\n    });\n\n    // Support: IE9+\n    element.on('compositionupdate', function(ev) {\n      // End composition when ev.data is empty string on 'compositionupdate' event.\n      // When the input de-focusses (e.g. by clicking away), IE triggers 'compositionupdate'\n      // instead of 'compositionend'.\n      if (isUndefined(ev.data) || ev.data === '') {\n        composing = false;\n      }\n    });\n\n    element.on('compositionend', function() {\n      composing = false;\n      listener();\n    });\n  }\n\n  var timeout;\n\n  var listener = function(ev) {\n    if (timeout) {\n      $browser.defer.cancel(timeout);\n      timeout = null;\n    }\n    if (composing) return;\n    var value = element.val(),\n        event = ev && ev.type;\n\n    // By default we will trim the value\n    // If the attribute ng-trim exists we will avoid trimming\n    // If input type is 'password', the value is never trimmed\n    if (type !== 'password' && (!attr.ngTrim || attr.ngTrim !== 'false')) {\n      value = trim(value);\n    }\n\n    // If a control is suffering from bad input (due to native validators), browsers discard its\n    // value, so it may be necessary to revalidate (by calling $setViewValue again) even if the\n    // control's value is the same empty value twice in a row.\n    if (ctrl.$viewValue !== value || (value === '' && ctrl.$$hasNativeValidators)) {\n      ctrl.$setViewValue(value, event);\n    }\n  };\n\n  // if the browser does support \"input\" event, we are fine - except on IE9 which doesn't fire the\n  // input event on backspace, delete or cut\n  if ($sniffer.hasEvent('input')) {\n    element.on('input', listener);\n  } else {\n    var deferListener = function(ev, input, origValue) {\n      if (!timeout) {\n        timeout = $browser.defer(function() {\n          timeout = null;\n          if (!input || input.value !== origValue) {\n            listener(ev);\n          }\n        });\n      }\n    };\n\n    element.on('keydown', /** @this */ function(event) {\n      var key = event.keyCode;\n\n      // ignore\n      //    command            modifiers                   arrows\n      if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40)) return;\n\n      deferListener(event, this, this.value);\n    });\n\n    // if user modifies input value using context menu in IE, we need \"paste\", \"cut\" and \"drop\" events to catch it\n    if ($sniffer.hasEvent('paste')) {\n      element.on('paste cut drop', deferListener);\n    }\n  }\n\n  // if user paste into input using mouse on older browser\n  // or form autocomplete on newer browser, we need \"change\" event to catch it\n  element.on('change', listener);\n\n  // Some native input types (date-family) have the ability to change validity without\n  // firing any input/change events.\n  // For these event types, when native validators are present and the browser supports the type,\n  // check for validity changes on various DOM events.\n  if (PARTIAL_VALIDATION_TYPES[type] && ctrl.$$hasNativeValidators && type === attr.type) {\n    element.on(PARTIAL_VALIDATION_EVENTS, /** @this */ function(ev) {\n      if (!timeout) {\n        var validity = this[VALIDITY_STATE_PROPERTY];\n        var origBadInput = validity.badInput;\n        var origTypeMismatch = validity.typeMismatch;\n        timeout = $browser.defer(function() {\n          timeout = null;\n          if (validity.badInput !== origBadInput || validity.typeMismatch !== origTypeMismatch) {\n            listener(ev);\n          }\n        });\n      }\n    });\n  }\n\n  ctrl.$render = function() {\n    // Workaround for Firefox validation #12102.\n    var value = ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue;\n    if (element.val() !== value) {\n      element.val(value);\n    }\n  };\n}\n\nfunction weekParser(isoWeek, existingDate) {\n  if (isDate(isoWeek)) {\n    return isoWeek;\n  }\n\n  if (isString(isoWeek)) {\n    WEEK_REGEXP.lastIndex = 0;\n    var parts = WEEK_REGEXP.exec(isoWeek);\n    if (parts) {\n      var year = +parts[1],\n          week = +parts[2],\n          hours = 0,\n          minutes = 0,\n          seconds = 0,\n          milliseconds = 0,\n          firstThurs = getFirstThursdayOfYear(year),\n          addDays = (week - 1) * 7;\n\n      if (existingDate) {\n        hours = existingDate.getHours();\n        minutes = existingDate.getMinutes();\n        seconds = existingDate.getSeconds();\n        milliseconds = existingDate.getMilliseconds();\n      }\n\n      return new Date(year, 0, firstThurs.getDate() + addDays, hours, minutes, seconds, milliseconds);\n    }\n  }\n\n  return NaN;\n}\n\nfunction createDateParser(regexp, mapping) {\n  return function(iso, previousDate) {\n    var parts, map;\n\n    if (isDate(iso)) {\n      return iso;\n    }\n\n    if (isString(iso)) {\n      // When a date is JSON'ified to wraps itself inside of an extra\n      // set of double quotes. This makes the date parsing code unable\n      // to match the date string and parse it as a date.\n      if (iso.charAt(0) === '\"' && iso.charAt(iso.length - 1) === '\"') {\n        iso = iso.substring(1, iso.length - 1);\n      }\n      if (ISO_DATE_REGEXP.test(iso)) {\n        return new Date(iso);\n      }\n      regexp.lastIndex = 0;\n      parts = regexp.exec(iso);\n\n      if (parts) {\n        parts.shift();\n        if (previousDate) {\n          map = {\n            yyyy: previousDate.getFullYear(),\n            MM: previousDate.getMonth() + 1,\n            dd: previousDate.getDate(),\n            HH: previousDate.getHours(),\n            mm: previousDate.getMinutes(),\n            ss: previousDate.getSeconds(),\n            sss: previousDate.getMilliseconds() / 1000\n          };\n        } else {\n          map = { yyyy: 1970, MM: 1, dd: 1, HH: 0, mm: 0, ss: 0, sss: 0 };\n        }\n\n        forEach(parts, function(part, index) {\n          if (index < mapping.length) {\n            map[mapping[index]] = +part;\n          }\n        });\n\n        var date = new Date(map.yyyy, map.MM - 1, map.dd, map.HH, map.mm, map.ss || 0, map.sss * 1000 || 0);\n        if (map.yyyy < 100) {\n          // In the constructor, 2-digit years map to 1900-1999.\n          // Use `setFullYear()` to set the correct year.\n          date.setFullYear(map.yyyy);\n        }\n\n        return date;\n      }\n    }\n\n    return NaN;\n  };\n}\n\nfunction createDateInputType(type, regexp, parseDate, format) {\n  return function dynamicDateInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) {\n    badInputChecker(scope, element, attr, ctrl, type);\n    baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n    var isTimeType = type === 'time' || type === 'datetimelocal';\n    var previousDate;\n    var previousTimezone;\n\n    ctrl.$parsers.push(function(value) {\n      if (ctrl.$isEmpty(value)) return null;\n\n      if (regexp.test(value)) {\n        // Note: We cannot read ctrl.$modelValue, as there might be a different\n        // parser/formatter in the processing chain so that the model\n        // contains some different data format!\n        return parseDateAndConvertTimeZoneToLocal(value, previousDate);\n      }\n      ctrl.$$parserName = type;\n      return undefined;\n    });\n\n    ctrl.$formatters.push(function(value) {\n      if (value && !isDate(value)) {\n        throw ngModelMinErr('datefmt', 'Expected `{0}` to be a date', value);\n      }\n      if (isValidDate(value)) {\n        previousDate = value;\n        var timezone = ctrl.$options.getOption('timezone');\n\n        if (timezone) {\n          previousTimezone = timezone;\n          previousDate = convertTimezoneToLocal(previousDate, timezone, true);\n        }\n\n        return formatter(value, timezone);\n      } else {\n        previousDate = null;\n        previousTimezone = null;\n        return '';\n      }\n    });\n\n    if (isDefined(attr.min) || attr.ngMin) {\n      var minVal = attr.min || $parse(attr.ngMin)(scope);\n      var parsedMinVal = parseObservedDateValue(minVal);\n\n      ctrl.$validators.min = function(value) {\n        return !isValidDate(value) || isUndefined(parsedMinVal) || parseDate(value) >= parsedMinVal;\n      };\n      attr.$observe('min', function(val) {\n        if (val !== minVal) {\n          parsedMinVal = parseObservedDateValue(val);\n          minVal = val;\n          ctrl.$validate();\n        }\n      });\n    }\n\n    if (isDefined(attr.max) || attr.ngMax) {\n      var maxVal = attr.max || $parse(attr.ngMax)(scope);\n      var parsedMaxVal = parseObservedDateValue(maxVal);\n\n      ctrl.$validators.max = function(value) {\n        return !isValidDate(value) || isUndefined(parsedMaxVal) || parseDate(value) <= parsedMaxVal;\n      };\n      attr.$observe('max', function(val) {\n        if (val !== maxVal) {\n          parsedMaxVal = parseObservedDateValue(val);\n          maxVal = val;\n          ctrl.$validate();\n        }\n      });\n    }\n\n    function isValidDate(value) {\n      // Invalid Date: getTime() returns NaN\n      return value && !(value.getTime && value.getTime() !== value.getTime());\n    }\n\n    function parseObservedDateValue(val) {\n      return isDefined(val) && !isDate(val) ? parseDateAndConvertTimeZoneToLocal(val) || undefined : val;\n    }\n\n    function parseDateAndConvertTimeZoneToLocal(value, previousDate) {\n      var timezone = ctrl.$options.getOption('timezone');\n\n      if (previousTimezone && previousTimezone !== timezone) {\n        // If the timezone has changed, adjust the previousDate to the default timezone\n        // so that the new date is converted with the correct timezone offset\n        previousDate = addDateMinutes(previousDate, timezoneToOffset(previousTimezone));\n      }\n\n      var parsedDate = parseDate(value, previousDate);\n\n      if (!isNaN(parsedDate) && timezone) {\n        parsedDate = convertTimezoneToLocal(parsedDate, timezone);\n      }\n      return parsedDate;\n    }\n\n    function formatter(value, timezone) {\n      var targetFormat = format;\n\n      if (isTimeType && isString(ctrl.$options.getOption('timeSecondsFormat'))) {\n        targetFormat = format\n          .replace('ss.sss', ctrl.$options.getOption('timeSecondsFormat'))\n          .replace(/:$/, '');\n      }\n\n      var formatted =  $filter('date')(value, targetFormat, timezone);\n\n      if (isTimeType && ctrl.$options.getOption('timeStripZeroSeconds')) {\n        formatted = formatted.replace(/(?::00)?(?:\\.000)?$/, '');\n      }\n\n      return formatted;\n    }\n  };\n}\n\nfunction badInputChecker(scope, element, attr, ctrl, parserName) {\n  var node = element[0];\n  var nativeValidation = ctrl.$$hasNativeValidators = isObject(node.validity);\n  if (nativeValidation) {\n    ctrl.$parsers.push(function(value) {\n      var validity = element.prop(VALIDITY_STATE_PROPERTY) || {};\n      if (validity.badInput || validity.typeMismatch) {\n        ctrl.$$parserName = parserName;\n        return undefined;\n      }\n\n      return value;\n    });\n  }\n}\n\nfunction numberFormatterParser(ctrl) {\n  ctrl.$parsers.push(function(value) {\n    if (ctrl.$isEmpty(value))      return null;\n    if (NUMBER_REGEXP.test(value)) return parseFloat(value);\n\n    ctrl.$$parserName = 'number';\n    return undefined;\n  });\n\n  ctrl.$formatters.push(function(value) {\n    if (!ctrl.$isEmpty(value)) {\n      if (!isNumber(value)) {\n        throw ngModelMinErr('numfmt', 'Expected `{0}` to be a number', value);\n      }\n      value = value.toString();\n    }\n    return value;\n  });\n}\n\nfunction parseNumberAttrVal(val) {\n  if (isDefined(val) && !isNumber(val)) {\n    val = parseFloat(val);\n  }\n  return !isNumberNaN(val) ? val : undefined;\n}\n\nfunction isNumberInteger(num) {\n  // See http://stackoverflow.com/questions/14636536/how-to-check-if-a-variable-is-an-integer-in-javascript#14794066\n  // (minus the assumption that `num` is a number)\n\n  // eslint-disable-next-line no-bitwise\n  return (num | 0) === num;\n}\n\nfunction countDecimals(num) {\n  var numString = num.toString();\n  var decimalSymbolIndex = numString.indexOf('.');\n\n  if (decimalSymbolIndex === -1) {\n    if (-1 < num && num < 1) {\n      // It may be in the exponential notation format (`1e-X`)\n      var match = /e-(\\d+)$/.exec(numString);\n\n      if (match) {\n        return Number(match[1]);\n      }\n    }\n\n    return 0;\n  }\n\n  return numString.length - decimalSymbolIndex - 1;\n}\n\nfunction isValidForStep(viewValue, stepBase, step) {\n  // At this point `stepBase` and `step` are expected to be non-NaN values\n  // and `viewValue` is expected to be a valid stringified number.\n  var value = Number(viewValue);\n\n  var isNonIntegerValue = !isNumberInteger(value);\n  var isNonIntegerStepBase = !isNumberInteger(stepBase);\n  var isNonIntegerStep = !isNumberInteger(step);\n\n  // Due to limitations in Floating Point Arithmetic (e.g. `0.3 - 0.2 !== 0.1` or\n  // `0.5 % 0.1 !== 0`), we need to convert all numbers to integers.\n  if (isNonIntegerValue || isNonIntegerStepBase || isNonIntegerStep) {\n    var valueDecimals = isNonIntegerValue ? countDecimals(value) : 0;\n    var stepBaseDecimals = isNonIntegerStepBase ? countDecimals(stepBase) : 0;\n    var stepDecimals = isNonIntegerStep ? countDecimals(step) : 0;\n\n    var decimalCount = Math.max(valueDecimals, stepBaseDecimals, stepDecimals);\n    var multiplier = Math.pow(10, decimalCount);\n\n    value = value * multiplier;\n    stepBase = stepBase * multiplier;\n    step = step * multiplier;\n\n    if (isNonIntegerValue) value = Math.round(value);\n    if (isNonIntegerStepBase) stepBase = Math.round(stepBase);\n    if (isNonIntegerStep) step = Math.round(step);\n  }\n\n  return (value - stepBase) % step === 0;\n}\n\nfunction numberInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) {\n  badInputChecker(scope, element, attr, ctrl, 'number');\n  numberFormatterParser(ctrl);\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  var parsedMinVal;\n\n  if (isDefined(attr.min) || attr.ngMin) {\n    var minVal = attr.min || $parse(attr.ngMin)(scope);\n    parsedMinVal = parseNumberAttrVal(minVal);\n\n    ctrl.$validators.min = function(modelValue, viewValue) {\n      return ctrl.$isEmpty(viewValue) || isUndefined(parsedMinVal) || viewValue >= parsedMinVal;\n    };\n\n    attr.$observe('min', function(val) {\n      if (val !== minVal) {\n        parsedMinVal = parseNumberAttrVal(val);\n        minVal = val;\n        // TODO(matsko): implement validateLater to reduce number of validations\n        ctrl.$validate();\n      }\n    });\n  }\n\n  if (isDefined(attr.max) || attr.ngMax) {\n    var maxVal = attr.max || $parse(attr.ngMax)(scope);\n    var parsedMaxVal = parseNumberAttrVal(maxVal);\n\n    ctrl.$validators.max = function(modelValue, viewValue) {\n      return ctrl.$isEmpty(viewValue) || isUndefined(parsedMaxVal) || viewValue <= parsedMaxVal;\n    };\n\n    attr.$observe('max', function(val) {\n      if (val !== maxVal) {\n        parsedMaxVal = parseNumberAttrVal(val);\n        maxVal = val;\n        // TODO(matsko): implement validateLater to reduce number of validations\n        ctrl.$validate();\n      }\n    });\n  }\n\n  if (isDefined(attr.step) || attr.ngStep) {\n    var stepVal = attr.step || $parse(attr.ngStep)(scope);\n    var parsedStepVal = parseNumberAttrVal(stepVal);\n\n    ctrl.$validators.step = function(modelValue, viewValue) {\n      return ctrl.$isEmpty(viewValue) || isUndefined(parsedStepVal) ||\n        isValidForStep(viewValue, parsedMinVal || 0, parsedStepVal);\n    };\n\n    attr.$observe('step', function(val) {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      if (val !== stepVal) {\n        parsedStepVal = parseNumberAttrVal(val);\n        stepVal = val;\n        ctrl.$validate();\n      }\n\n    });\n\n  }\n}\n\nfunction rangeInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  badInputChecker(scope, element, attr, ctrl, 'range');\n  numberFormatterParser(ctrl);\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n\n  var supportsRange = ctrl.$$hasNativeValidators && element[0].type === 'range',\n      minVal = supportsRange ? 0 : undefined,\n      maxVal = supportsRange ? 100 : undefined,\n      stepVal = supportsRange ? 1 : undefined,\n      validity = element[0].validity,\n      hasMinAttr = isDefined(attr.min),\n      hasMaxAttr = isDefined(attr.max),\n      hasStepAttr = isDefined(attr.step);\n\n  var originalRender = ctrl.$render;\n\n  ctrl.$render = supportsRange && isDefined(validity.rangeUnderflow) && isDefined(validity.rangeOverflow) ?\n    //Browsers that implement range will set these values automatically, but reading the adjusted values after\n    //$render would cause the min / max validators to be applied with the wrong value\n    function rangeRender() {\n      originalRender();\n      ctrl.$setViewValue(element.val());\n    } :\n    originalRender;\n\n  if (hasMinAttr) {\n    minVal = parseNumberAttrVal(attr.min);\n\n    ctrl.$validators.min = supportsRange ?\n      // Since all browsers set the input to a valid value, we don't need to check validity\n      function noopMinValidator() { return true; } :\n      // non-support browsers validate the min val\n      function minValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(minVal) || viewValue >= minVal;\n      };\n\n    setInitialValueAndObserver('min', minChange);\n  }\n\n  if (hasMaxAttr) {\n    maxVal = parseNumberAttrVal(attr.max);\n\n    ctrl.$validators.max = supportsRange ?\n      // Since all browsers set the input to a valid value, we don't need to check validity\n      function noopMaxValidator() { return true; } :\n      // non-support browsers validate the max val\n      function maxValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(maxVal) || viewValue <= maxVal;\n      };\n\n    setInitialValueAndObserver('max', maxChange);\n  }\n\n  if (hasStepAttr) {\n    stepVal = parseNumberAttrVal(attr.step);\n\n    ctrl.$validators.step = supportsRange ?\n      function nativeStepValidator() {\n        // Currently, only FF implements the spec on step change correctly (i.e. adjusting the\n        // input element value to a valid value). It's possible that other browsers set the stepMismatch\n        // validity error instead, so we can at least report an error in that case.\n        return !validity.stepMismatch;\n      } :\n      // ngStep doesn't set the setp attr, so the browser doesn't adjust the input value as setting step would\n      function stepValidator(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || isUndefined(stepVal) ||\n               isValidForStep(viewValue, minVal || 0, stepVal);\n      };\n\n    setInitialValueAndObserver('step', stepChange);\n  }\n\n  function setInitialValueAndObserver(htmlAttrName, changeFn) {\n    // interpolated attributes set the attribute value only after a digest, but we need the\n    // attribute value when the input is first rendered, so that the browser can adjust the\n    // input value based on the min/max value\n    element.attr(htmlAttrName, attr[htmlAttrName]);\n    var oldVal = attr[htmlAttrName];\n    attr.$observe(htmlAttrName, function wrappedObserver(val) {\n      if (val !== oldVal) {\n        oldVal = val;\n        changeFn(val);\n      }\n    });\n  }\n\n  function minChange(val) {\n    minVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    if (supportsRange) {\n      var elVal = element.val();\n      // IE11 doesn't set the el val correctly if the minVal is greater than the element value\n      if (minVal > elVal) {\n        elVal = minVal;\n        element.val(elVal);\n      }\n      ctrl.$setViewValue(elVal);\n    } else {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    }\n  }\n\n  function maxChange(val) {\n    maxVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    if (supportsRange) {\n      var elVal = element.val();\n      // IE11 doesn't set the el val correctly if the maxVal is less than the element value\n      if (maxVal < elVal) {\n        element.val(maxVal);\n        // IE11 and Chrome don't set the value to the minVal when max < min\n        elVal = maxVal < minVal ? minVal : maxVal;\n      }\n      ctrl.$setViewValue(elVal);\n    } else {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    }\n  }\n\n  function stepChange(val) {\n    stepVal = parseNumberAttrVal(val);\n    // ignore changes before model is initialized\n    if (isNumberNaN(ctrl.$modelValue)) {\n      return;\n    }\n\n    // Some browsers don't adjust the input value correctly, but set the stepMismatch error\n    if (!supportsRange) {\n      // TODO(matsko): implement validateLater to reduce number of validations\n      ctrl.$validate();\n    } else if (ctrl.$viewValue !== element.val()) {\n      ctrl.$setViewValue(element.val());\n    }\n  }\n}\n\nfunction urlInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$validators.url = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || URL_REGEXP.test(value);\n  };\n}\n\nfunction emailInputType(scope, element, attr, ctrl, $sniffer, $browser) {\n  // Note: no badInputChecker here by purpose as `url` is only a validation\n  // in browsers, i.e. we can always read out input.value even if it is not valid!\n  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);\n  stringBasedInputType(ctrl);\n\n  ctrl.$validators.email = function(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n    return ctrl.$isEmpty(value) || EMAIL_REGEXP.test(value);\n  };\n}\n\nfunction radioInputType(scope, element, attr, ctrl) {\n  var doTrim = !attr.ngTrim || trim(attr.ngTrim) !== 'false';\n  // make the name unique, if not defined\n  if (isUndefined(attr.name)) {\n    element.attr('name', nextUid());\n  }\n\n  var listener = function(ev) {\n    var value;\n    if (element[0].checked) {\n      value = attr.value;\n      if (doTrim) {\n        value = trim(value);\n      }\n      ctrl.$setViewValue(value, ev && ev.type);\n    }\n  };\n\n  element.on('change', listener);\n\n  ctrl.$render = function() {\n    var value = attr.value;\n    if (doTrim) {\n      value = trim(value);\n    }\n    element[0].checked = (value === ctrl.$viewValue);\n  };\n\n  attr.$observe('value', ctrl.$render);\n}\n\nfunction parseConstantExpr($parse, context, name, expression, fallback) {\n  var parseFn;\n  if (isDefined(expression)) {\n    parseFn = $parse(expression);\n    if (!parseFn.constant) {\n      throw ngModelMinErr('constexpr', 'Expected constant expression for `{0}`, but saw ' +\n                                   '`{1}`.', name, expression);\n    }\n    return parseFn(context);\n  }\n  return fallback;\n}\n\nfunction checkboxInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) {\n  var trueValue = parseConstantExpr($parse, scope, 'ngTrueValue', attr.ngTrueValue, true);\n  var falseValue = parseConstantExpr($parse, scope, 'ngFalseValue', attr.ngFalseValue, false);\n\n  var listener = function(ev) {\n    ctrl.$setViewValue(element[0].checked, ev && ev.type);\n  };\n\n  element.on('change', listener);\n\n  ctrl.$render = function() {\n    element[0].checked = ctrl.$viewValue;\n  };\n\n  // Override the standard `$isEmpty` because the $viewValue of an empty checkbox is always set to `false`\n  // This is because of the parser below, which compares the `$modelValue` with `trueValue` to convert\n  // it to a boolean.\n  ctrl.$isEmpty = function(value) {\n    return value === false;\n  };\n\n  ctrl.$formatters.push(function(value) {\n    return equals(value, trueValue);\n  });\n\n  ctrl.$parsers.push(function(value) {\n    return value ? trueValue : falseValue;\n  });\n}\n\n\n/**\n * @ngdoc directive\n * @name textarea\n * @restrict E\n *\n * @description\n * HTML textarea element control with AngularJS data-binding. The data-binding and validation\n * properties of this element are exactly the same as those of the\n * {@link ng.directive:input input element}.\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n *    does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n *    If the expression evaluates to a RegExp object, then this is used directly.\n *    If the expression evaluates to a string, then it will be converted to a RegExp\n *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n *    `new RegExp('^abc$')`.<br />\n *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n *    start at the index of the last search's match, thus not taking the whole input value into\n *    account.\n * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false AngularJS will not automatically trim the input.\n *\n * @knownIssue\n *\n * When specifying the `placeholder` attribute of `<textarea>`, Internet Explorer will temporarily\n * insert the placeholder value as the textarea's content. If the placeholder value contains\n * interpolation (`{{ ... }}`), an error will be logged in the console when AngularJS tries to update\n * the value of the by-then-removed text node. This doesn't affect the functionality of the\n * textarea, but can be undesirable.\n *\n * You can work around this Internet Explorer issue by using `ng-attr-placeholder` instead of\n * `placeholder` on textareas, whenever you need interpolation in the placeholder value. You can\n * find more details on `ngAttr` in the\n * [Interpolation](guide/interpolation#-ngattr-for-binding-to-arbitrary-attributes) section of the\n * Developer Guide.\n */\n\n\n/**\n * @ngdoc directive\n * @name input\n * @restrict E\n *\n * @description\n * HTML input element control. When used together with {@link ngModel `ngModel`}, it provides data-binding,\n * input state control, and validation.\n * Input control follows HTML5 input types and polyfills the HTML5 validation behavior for older browsers.\n *\n * <div class=\"alert alert-warning\">\n * **Note:** Not every feature offered is available for all input types.\n * Specifically, data binding and event handling via `ng-model` is unsupported for `input[file]`.\n * </div>\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {boolean=} ngRequired Sets `required` attribute if set to true\n * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than\n *    minlength.\n * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than\n *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any\n *    length.\n * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}\n *    value does not match a RegExp found by evaluating the AngularJS expression given in the attribute value.\n *    If the expression evaluates to a RegExp object, then this is used directly.\n *    If the expression evaluates to a string, then it will be converted to a RegExp\n *    after wrapping it in `^` and `$` characters. For instance, `\"abc\"` will be converted to\n *    `new RegExp('^abc$')`.<br />\n *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n *    start at the index of the last search's match, thus not taking the whole input value into\n *    account.\n * @param {string=} ngChange AngularJS expression to be executed when input changes due to user\n *    interaction with the input element.\n * @param {boolean=} [ngTrim=true] If set to false AngularJS will not automatically trim the input.\n *    This parameter is ignored for input[type=password] controls, which will never trim the\n *    input.\n *\n * @example\n    <example name=\"input-directive\" module=\"inputExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('inputExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.user = {name: 'guest', last: 'visitor'};\n            }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <form name=\"myForm\">\n           <label>\n              User name:\n              <input type=\"text\" name=\"userName\" ng-model=\"user.name\" required>\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.userName.$error.required\">\n              Required!</span>\n           </div>\n           <label>\n              Last name:\n              <input type=\"text\" name=\"lastName\" ng-model=\"user.last\"\n              ng-minlength=\"3\" ng-maxlength=\"10\">\n           </label>\n           <div role=\"alert\">\n             <span class=\"error\" ng-show=\"myForm.lastName.$error.minlength\">\n               Too short!</span>\n             <span class=\"error\" ng-show=\"myForm.lastName.$error.maxlength\">\n               Too long!</span>\n           </div>\n         </form>\n         <hr>\n         <tt>user = {{user}}</tt><br/>\n         <tt>myForm.userName.$valid = {{myForm.userName.$valid}}</tt><br/>\n         <tt>myForm.userName.$error = {{myForm.userName.$error}}</tt><br/>\n         <tt>myForm.lastName.$valid = {{myForm.lastName.$valid}}</tt><br/>\n         <tt>myForm.lastName.$error = {{myForm.lastName.$error}}</tt><br/>\n         <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n         <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n         <tt>myForm.$error.minlength = {{!!myForm.$error.minlength}}</tt><br/>\n         <tt>myForm.$error.maxlength = {{!!myForm.$error.maxlength}}</tt><br/>\n       </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var user = element(by.exactBinding('user'));\n        var userNameValid = element(by.binding('myForm.userName.$valid'));\n        var lastNameValid = element(by.binding('myForm.lastName.$valid'));\n        var lastNameError = element(by.binding('myForm.lastName.$error'));\n        var formValid = element(by.binding('myForm.$valid'));\n        var userNameInput = element(by.model('user.name'));\n        var userLastInput = element(by.model('user.last'));\n\n        it('should initialize to model', function() {\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if empty when required', function() {\n          userNameInput.clear();\n          userNameInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"last\":\"visitor\"}');\n          expect(userNameValid.getText()).toContain('false');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be valid if empty when min length is set', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\",\"last\":\"\"}');\n          expect(lastNameValid.getText()).toContain('true');\n          expect(formValid.getText()).toContain('true');\n        });\n\n        it('should be invalid if less than required min length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('xx');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('minlength');\n          expect(formValid.getText()).toContain('false');\n        });\n\n        it('should be invalid if longer than max length', function() {\n          userLastInput.clear();\n          userLastInput.sendKeys('some ridiculously long name');\n\n          expect(user.getText()).toContain('{\"name\":\"guest\"}');\n          expect(lastNameValid.getText()).toContain('false');\n          expect(lastNameError.getText()).toContain('maxlength');\n          expect(formValid.getText()).toContain('false');\n        });\n      </file>\n    </example>\n */\nvar inputDirective = ['$browser', '$sniffer', '$filter', '$parse',\n    function($browser, $sniffer, $filter, $parse) {\n  return {\n    restrict: 'E',\n    require: ['?ngModel'],\n    link: {\n      pre: function(scope, element, attr, ctrls) {\n        if (ctrls[0]) {\n          (inputType[lowercase(attr.type)] || inputType.text)(scope, element, attr, ctrls[0], $sniffer,\n                                                              $browser, $filter, $parse);\n        }\n      }\n    }\n  };\n}];\n\n\nvar hiddenInputBrowserCacheDirective = function() {\n  var valueProperty = {\n    configurable: true,\n    enumerable: false,\n    get: function() {\n      return this.getAttribute('value') || '';\n    },\n    set: function(val) {\n      this.setAttribute('value', val);\n    }\n  };\n\n  return {\n    restrict: 'E',\n    priority: 200,\n    compile: function(_, attr) {\n      if (lowercase(attr.type) !== 'hidden') {\n        return;\n      }\n\n      return {\n        pre: function(scope, element, attr, ctrls) {\n          var node = element[0];\n\n          // Support: Edge\n          // Moving the DOM around prevents autofillling\n          if (node.parentNode) {\n            node.parentNode.insertBefore(node, node.nextSibling);\n          }\n\n          // Support: FF, IE\n          // Avoiding direct assignment to .value prevents autofillling\n          if (Object.defineProperty) {\n            Object.defineProperty(node, 'value', valueProperty);\n          }\n        }\n      };\n    }\n  };\n};\n\n\n\nvar CONSTANT_VALUE_REGEXP = /^(true|false|\\d+)$/;\n/**\n * @ngdoc directive\n * @name ngValue\n * @restrict A\n * @priority 100\n *\n * @description\n * Binds the given expression to the value of the element.\n *\n * It is mainly used on {@link input[radio] `input[radio]`} and option elements,\n * so that when the element is selected, the {@link ngModel `ngModel`} of that element (or its\n * {@link select `select`} parent element) is set to the bound value. It is especially useful\n * for dynamically generated lists using {@link ngRepeat `ngRepeat`}, as shown below.\n *\n * It can also be used to achieve one-way binding of a given expression to an input element\n * such as an `input[text]` or a `textarea`, when that element does not use ngModel.\n *\n * @element ANY\n * @param {string=} ngValue AngularJS expression, whose value will be bound to the `value` attribute\n * and `value` property of the element.\n *\n * @example\n    <example name=\"ngValue-directive\" module=\"valueExample\">\n      <file name=\"index.html\">\n       <script>\n          angular.module('valueExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.names = ['pizza', 'unicorns', 'robots'];\n              $scope.my = { favorite: 'unicorns' };\n            }]);\n       </script>\n        <form ng-controller=\"ExampleController\">\n          <h2>Which is your favorite?</h2>\n            <label ng-repeat=\"name in names\" for=\"{{name}}\">\n              {{name}}\n              <input type=\"radio\"\n                     ng-model=\"my.favorite\"\n                     ng-value=\"name\"\n                     id=\"{{name}}\"\n                     name=\"favorite\">\n            </label>\n          <div>You chose {{my.favorite}}</div>\n        </form>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        var favorite = element(by.binding('my.favorite'));\n\n        it('should initialize to model', function() {\n          expect(favorite.getText()).toContain('unicorns');\n        });\n        it('should bind the values to the inputs', function() {\n          element.all(by.model('my.favorite')).get(0).click();\n          expect(favorite.getText()).toContain('pizza');\n        });\n      </file>\n    </example>\n */\nvar ngValueDirective = function() {\n  /**\n   *  inputs use the value attribute as their default value if the value property is not set.\n   *  Once the value property has been set (by adding input), it will not react to changes to\n   *  the value attribute anymore. Setting both attribute and property fixes this behavior, and\n   *  makes it possible to use ngValue as a sort of one-way bind.\n   */\n  function updateElementValue(element, attr, value) {\n    // Support: IE9 only\n    // In IE9 values are converted to string (e.g. `input.value = null` results in `input.value === 'null'`).\n    var propValue = isDefined(value) ? value : (msie === 9) ? '' : null;\n    element.prop('value', propValue);\n    attr.$set('value', value);\n  }\n\n  return {\n    restrict: 'A',\n    priority: 100,\n    compile: function(tpl, tplAttr) {\n      if (CONSTANT_VALUE_REGEXP.test(tplAttr.ngValue)) {\n        return function ngValueConstantLink(scope, elm, attr) {\n          var value = scope.$eval(attr.ngValue);\n          updateElementValue(elm, attr, value);\n        };\n      } else {\n        return function ngValueLink(scope, elm, attr) {\n          scope.$watch(attr.ngValue, function valueWatchAction(value) {\n            updateElementValue(elm, attr, value);\n          });\n        };\n      }\n    }\n  };\n};\n\n/**\n * @ngdoc directive\n * @name ngBind\n * @restrict AC\n *\n * @description\n * The `ngBind` attribute tells AngularJS to replace the text content of the specified HTML element\n * with the value of a given expression, and to update the text content when the value of that\n * expression changes.\n *\n * Typically, you don't use `ngBind` directly, but instead you use the double curly markup like\n * `{{ expression }}` which is similar but less verbose.\n *\n * It is preferable to use `ngBind` instead of `{{ expression }}` if a template is momentarily\n * displayed by the browser in its raw state before AngularJS compiles it. Since `ngBind` is an\n * element attribute, it makes the bindings invisible to the user while the page is loading.\n *\n * An alternative solution to this problem would be using the\n * {@link ng.directive:ngCloak ngCloak} directive.\n *\n *\n * @element ANY\n * @param {expression} ngBind {@link guide/expression Expression} to evaluate.\n *\n * @example\n * Enter a name in the Live Preview text box; the greeting below the text box changes instantly.\n   <example module=\"bindExample\" name=\"ng-bind\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.name = 'Whirled';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n         <label>Enter name: <input type=\"text\" ng-model=\"name\"></label><br>\n         Hello <span ng-bind=\"name\"></span>!\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var nameInput = element(by.model('name'));\n\n         expect(element(by.binding('name')).getText()).toBe('Whirled');\n         nameInput.clear();\n         nameInput.sendKeys('world');\n         expect(element(by.binding('name')).getText()).toBe('world');\n       });\n     </file>\n   </example>\n */\nvar ngBindDirective = ['$compile', function($compile) {\n  return {\n    restrict: 'AC',\n    compile: function ngBindCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBind);\n        element = element[0];\n        scope.$watch(attr.ngBind, function ngBindWatchAction(value) {\n          element.textContent = stringify(value);\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindTemplate\n *\n * @description\n * The `ngBindTemplate` directive specifies that the element\n * text content should be replaced with the interpolation of the template\n * in the `ngBindTemplate` attribute.\n * Unlike `ngBind`, the `ngBindTemplate` can contain multiple `{{` `}}`\n * expressions. This directive is needed since some HTML elements\n * (such as TITLE and OPTION) cannot contain SPAN elements.\n *\n * @element ANY\n * @param {string} ngBindTemplate template of form\n *   <tt>{{</tt> <tt>expression</tt> <tt>}}</tt> to eval.\n *\n * @example\n * Try it here: enter text in text box and watch the greeting change.\n   <example module=\"bindExample\" name=\"ng-bind-template\">\n     <file name=\"index.html\">\n       <script>\n         angular.module('bindExample', [])\n           .controller('ExampleController', ['$scope', function($scope) {\n             $scope.salutation = 'Hello';\n             $scope.name = 'World';\n           }]);\n       </script>\n       <div ng-controller=\"ExampleController\">\n        <label>Salutation: <input type=\"text\" ng-model=\"salutation\"></label><br>\n        <label>Name: <input type=\"text\" ng-model=\"name\"></label><br>\n        <pre ng-bind-template=\"{{salutation}} {{name}}!\"></pre>\n       </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind', function() {\n         var salutationElem = element(by.binding('salutation'));\n         var salutationInput = element(by.model('salutation'));\n         var nameInput = element(by.model('name'));\n\n         expect(salutationElem.getText()).toBe('Hello World!');\n\n         salutationInput.clear();\n         salutationInput.sendKeys('Greetings');\n         nameInput.clear();\n         nameInput.sendKeys('user');\n\n         expect(salutationElem.getText()).toBe('Greetings user!');\n       });\n     </file>\n   </example>\n */\nvar ngBindTemplateDirective = ['$interpolate', '$compile', function($interpolate, $compile) {\n  return {\n    compile: function ngBindTemplateCompile(templateElement) {\n      $compile.$$addBindingClass(templateElement);\n      return function ngBindTemplateLink(scope, element, attr) {\n        var interpolateFn = $interpolate(element.attr(attr.$attr.ngBindTemplate));\n        $compile.$$addBindingInfo(element, interpolateFn.expressions);\n        element = element[0];\n        attr.$observe('ngBindTemplate', function(value) {\n          element.textContent = isUndefined(value) ? '' : value;\n        });\n      };\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngBindHtml\n *\n * @description\n * Evaluates the expression and inserts the resulting HTML into the element in a secure way. By default,\n * the resulting HTML content will be sanitized using the {@link ngSanitize.$sanitize $sanitize} service.\n * To utilize this functionality, ensure that `$sanitize` is available, for example, by including {@link\n * ngSanitize} in your module's dependencies (not in core AngularJS). In order to use {@link ngSanitize}\n * in your module's dependencies, you need to include \"angular-sanitize.js\" in your application.\n *\n * You may also bypass sanitization for values you know are safe. To do so, bind to\n * an explicitly trusted value via {@link ng.$sce#trustAsHtml $sce.trustAsHtml}.  See the example\n * under {@link ng.$sce#show-me-an-example-using-sce- Strict Contextual Escaping (SCE)}.\n *\n * Note: If a `$sanitize` service is unavailable and the bound value isn't explicitly trusted, you\n * will have an exception (instead of an exploit.)\n *\n * @element ANY\n * @param {expression} ngBindHtml {@link guide/expression Expression} to evaluate.\n *\n * @example\n\n   <example module=\"bindHtmlExample\" deps=\"angular-sanitize.js\" name=\"ng-bind-html\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n        <p ng-bind-html=\"myHTML\"></p>\n       </div>\n     </file>\n\n     <file name=\"script.js\">\n       angular.module('bindHtmlExample', ['ngSanitize'])\n         .controller('ExampleController', ['$scope', function($scope) {\n           $scope.myHTML =\n              'I am an <code>HTML</code>string with ' +\n              '<a href=\"#\">links!</a> and other <em>stuff</em>';\n         }]);\n     </file>\n\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-bind-html', function() {\n         expect(element(by.binding('myHTML')).getText()).toBe(\n             'I am an HTMLstring with links! and other stuff');\n       });\n     </file>\n   </example>\n */\nvar ngBindHtmlDirective = ['$sce', '$parse', '$compile', function($sce, $parse, $compile) {\n  return {\n    restrict: 'A',\n    compile: function ngBindHtmlCompile(tElement, tAttrs) {\n      var ngBindHtmlGetter = $parse(tAttrs.ngBindHtml);\n      var ngBindHtmlWatch = $parse(tAttrs.ngBindHtml, function sceValueOf(val) {\n        // Unwrap the value to compare the actual inner safe value, not the wrapper object.\n        return $sce.valueOf(val);\n      });\n      $compile.$$addBindingClass(tElement);\n\n      return function ngBindHtmlLink(scope, element, attr) {\n        $compile.$$addBindingInfo(element, attr.ngBindHtml);\n\n        scope.$watch(ngBindHtmlWatch, function ngBindHtmlWatchAction() {\n          // The watched value is the unwrapped value. To avoid re-escaping, use the direct getter.\n          var value = ngBindHtmlGetter(scope);\n          element.html($sce.getTrustedHtml(value) || '');\n        });\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngChange\n * @restrict A\n *\n * @description\n * Evaluate the given expression when the user changes the input.\n * The expression is evaluated immediately, unlike the JavaScript onchange event\n * which only triggers at the end of a change (usually, when the user leaves the\n * form element or presses the return key).\n *\n * The `ngChange` expression is only evaluated when a change in the input value causes\n * a new value to be committed to the model.\n *\n * It will not be evaluated:\n * * if the value returned from the `$parsers` transformation pipeline has not changed\n * * if the input has continued to be invalid since the model will stay `null`\n * * if the model is changed programmatically and not by a change to the input value\n *\n *\n * Note, this directive requires `ngModel` to be present.\n *\n * @element ANY\n * @param {expression} ngChange {@link guide/expression Expression} to evaluate upon change\n * in input value.\n *\n * @example\n * <example name=\"ngChange-directive\" module=\"changeExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('changeExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.counter = 0;\n *           $scope.change = function() {\n *             $scope.counter++;\n *           };\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <input type=\"checkbox\" ng-model=\"confirmed\" ng-change=\"change()\" id=\"ng-change-example1\" />\n *       <input type=\"checkbox\" ng-model=\"confirmed\" id=\"ng-change-example2\" />\n *       <label for=\"ng-change-example2\">Confirmed</label><br />\n *       <tt>debug = {{confirmed}}</tt><br/>\n *       <tt>counter = {{counter}}</tt><br/>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var counter = element(by.binding('counter'));\n *     var debug = element(by.binding('confirmed'));\n *\n *     it('should evaluate the expression if changing from view', function() {\n *       expect(counter.getText()).toContain('0');\n *\n *       element(by.id('ng-change-example1')).click();\n *\n *       expect(counter.getText()).toContain('1');\n *       expect(debug.getText()).toContain('true');\n *     });\n *\n *     it('should not evaluate the expression if changing from model', function() {\n *       element(by.id('ng-change-example2')).click();\n\n *       expect(counter.getText()).toContain('0');\n *       expect(debug.getText()).toContain('true');\n *     });\n *   </file>\n * </example>\n */\nvar ngChangeDirective = valueFn({\n  restrict: 'A',\n  require: 'ngModel',\n  link: function(scope, element, attr, ctrl) {\n    ctrl.$viewChangeListeners.push(function() {\n      scope.$eval(attr.ngChange);\n    });\n  }\n});\n\n/* exported\n  ngClassDirective,\n  ngClassEvenDirective,\n  ngClassOddDirective\n*/\n\nfunction classDirective(name, selector) {\n  name = 'ngClass' + name;\n  var indexWatchExpression;\n\n  return ['$parse', function($parse) {\n    return {\n      restrict: 'AC',\n      link: function(scope, element, attr) {\n        var classCounts = element.data('$classCounts');\n        var oldModulo = true;\n        var oldClassString;\n\n        if (!classCounts) {\n          // Use createMap() to prevent class assumptions involving property\n          // names in Object.prototype\n          classCounts = createMap();\n          element.data('$classCounts', classCounts);\n        }\n\n        if (name !== 'ngClass') {\n          if (!indexWatchExpression) {\n            indexWatchExpression = $parse('$index', function moduloTwo($index) {\n              // eslint-disable-next-line no-bitwise\n              return $index & 1;\n            });\n          }\n\n          scope.$watch(indexWatchExpression, ngClassIndexWatchAction);\n        }\n\n        scope.$watch($parse(attr[name], toClassString), ngClassWatchAction);\n\n        function addClasses(classString) {\n          classString = digestClassCounts(split(classString), 1);\n          attr.$addClass(classString);\n        }\n\n        function removeClasses(classString) {\n          classString = digestClassCounts(split(classString), -1);\n          attr.$removeClass(classString);\n        }\n\n        function updateClasses(oldClassString, newClassString) {\n          var oldClassArray = split(oldClassString);\n          var newClassArray = split(newClassString);\n\n          var toRemoveArray = arrayDifference(oldClassArray, newClassArray);\n          var toAddArray = arrayDifference(newClassArray, oldClassArray);\n\n          var toRemoveString = digestClassCounts(toRemoveArray, -1);\n          var toAddString = digestClassCounts(toAddArray, 1);\n\n          attr.$addClass(toAddString);\n          attr.$removeClass(toRemoveString);\n        }\n\n        function digestClassCounts(classArray, count) {\n          var classesToUpdate = [];\n\n          forEach(classArray, function(className) {\n            if (count > 0 || classCounts[className]) {\n              classCounts[className] = (classCounts[className] || 0) + count;\n              if (classCounts[className] === +(count > 0)) {\n                classesToUpdate.push(className);\n              }\n            }\n          });\n\n          return classesToUpdate.join(' ');\n        }\n\n        function ngClassIndexWatchAction(newModulo) {\n          // This watch-action should run before the `ngClassWatchAction()`, thus it\n          // adds/removes `oldClassString`. If the `ngClass` expression has changed as well, the\n          // `ngClassWatchAction()` will update the classes.\n          if (newModulo === selector) {\n            addClasses(oldClassString);\n          } else {\n            removeClasses(oldClassString);\n          }\n\n          oldModulo = newModulo;\n        }\n\n        function ngClassWatchAction(newClassString) {\n          if (oldModulo === selector) {\n            updateClasses(oldClassString, newClassString);\n          }\n\n          oldClassString = newClassString;\n        }\n      }\n    };\n  }];\n\n  // Helpers\n  function arrayDifference(tokens1, tokens2) {\n    if (!tokens1 || !tokens1.length) return [];\n    if (!tokens2 || !tokens2.length) return tokens1;\n\n    var values = [];\n\n    outer:\n    for (var i = 0; i < tokens1.length; i++) {\n      var token = tokens1[i];\n      for (var j = 0; j < tokens2.length; j++) {\n        if (token === tokens2[j]) continue outer;\n      }\n      values.push(token);\n    }\n\n    return values;\n  }\n\n  function split(classString) {\n    return classString && classString.split(' ');\n  }\n\n  function toClassString(classValue) {\n    if (!classValue) return classValue;\n\n    var classString = classValue;\n\n    if (isArray(classValue)) {\n      classString = classValue.map(toClassString).join(' ');\n    } else if (isObject(classValue)) {\n      classString = Object.keys(classValue).\n        filter(function(key) { return classValue[key]; }).\n        join(' ');\n    } else if (!isString(classValue)) {\n      classString = classValue + '';\n    }\n\n    return classString;\n  }\n}\n\n/**\n * @ngdoc directive\n * @name ngClass\n * @restrict AC\n * @element ANY\n *\n * @description\n * The `ngClass` directive allows you to dynamically set CSS classes on an HTML element by databinding\n * an expression that represents all classes to be added.\n *\n * The directive operates in three different ways, depending on which of three types the expression\n * evaluates to:\n *\n * 1. If the expression evaluates to a string, the string should be one or more space-delimited class\n * names.\n *\n * 2. If the expression evaluates to an object, then for each key-value pair of the\n * object with a truthy value the corresponding key is used as a class name.\n *\n * 3. If the expression evaluates to an array, each element of the array should either be a string as in\n * type 1 or an object as in type 2. This means that you can mix strings and objects together in an array\n * to give you more control over what CSS classes appear. See the code below for an example of this.\n *\n *\n * The directive won't add duplicate classes if a particular class was already set.\n *\n * When the expression changes, the previously added classes are removed and only then are the\n * new classes added.\n *\n * @knownIssue\n * You should not use {@link guide/interpolation interpolation} in the value of the `class`\n * attribute, when using the `ngClass` directive on the same element.\n * See {@link guide/interpolation#known-issues here} for more info.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#addClass addClass}       | just before the class is applied to the element   |\n * | {@link ng.$animate#removeClass removeClass} | just before the class is removed from the element |\n * | {@link ng.$animate#setClass setClass} | just before classes are added and classes are removed from the element at the same time |\n *\n * ### ngClass and pre-existing CSS3 Transitions/Animations\n   The ngClass directive still supports CSS3 Transitions/Animations even if they do not follow the ngAnimate CSS naming structure.\n   Upon animation ngAnimate will apply supplementary CSS classes to track the start and end of an animation, but this will not hinder\n   any pre-existing CSS transitions already on the element. To get an idea of what happens during a class-based animation, be sure\n   to view the step by step details of {@link $animate#addClass $animate.addClass} and\n   {@link $animate#removeClass $animate.removeClass}.\n *\n * @param {expression} ngClass {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class\n *   names, an array, or a map of class names to boolean values. In the case of a map, the\n *   names of the properties whose values are truthy will be added as css classes to the\n *   element.\n *\n * @example\n * ### Basic\n   <example name=\"ng-class\">\n     <file name=\"index.html\">\n       <p ng-class=\"{strike: deleted, bold: important, 'has-error': error}\">Map Syntax Example</p>\n       <label>\n          <input type=\"checkbox\" ng-model=\"deleted\">\n          deleted (apply \"strike\" class)\n       </label><br>\n       <label>\n          <input type=\"checkbox\" ng-model=\"important\">\n          important (apply \"bold\" class)\n       </label><br>\n       <label>\n          <input type=\"checkbox\" ng-model=\"error\">\n          error (apply \"has-error\" class)\n       </label>\n       <hr>\n       <p ng-class=\"style\">Using String Syntax</p>\n       <input type=\"text\" ng-model=\"style\"\n              placeholder=\"Type: bold strike red\" aria-label=\"Type: bold strike red\">\n       <hr>\n       <p ng-class=\"[style1, style2, style3]\">Using Array Syntax</p>\n       <input ng-model=\"style1\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red\"><br>\n       <input ng-model=\"style2\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red 2\"><br>\n       <input ng-model=\"style3\"\n              placeholder=\"Type: bold, strike or red\" aria-label=\"Type: bold, strike or red 3\"><br>\n       <hr>\n       <p ng-class=\"[style4, {orange: warning}]\">Using Array and Map Syntax</p>\n       <input ng-model=\"style4\" placeholder=\"Type: bold, strike\" aria-label=\"Type: bold, strike\"><br>\n       <label><input type=\"checkbox\" ng-model=\"warning\"> warning (apply \"orange\" class)</label>\n     </file>\n     <file name=\"style.css\">\n       .strike {\n           text-decoration: line-through;\n       }\n       .bold {\n           font-weight: bold;\n       }\n       .red {\n           color: red;\n       }\n       .has-error {\n           color: red;\n           background-color: yellow;\n       }\n       .orange {\n           color: orange;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var ps = element.all(by.css('p'));\n\n       it('should let you toggle the class', function() {\n\n         expect(ps.first().getAttribute('class')).not.toMatch(/bold/);\n         expect(ps.first().getAttribute('class')).not.toMatch(/has-error/);\n\n         element(by.model('important')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/bold/);\n\n         element(by.model('error')).click();\n         expect(ps.first().getAttribute('class')).toMatch(/has-error/);\n       });\n\n       it('should let you toggle string example', function() {\n         expect(ps.get(1).getAttribute('class')).toBe('');\n         element(by.model('style')).clear();\n         element(by.model('style')).sendKeys('red');\n         expect(ps.get(1).getAttribute('class')).toBe('red');\n       });\n\n       it('array example should have 3 classes', function() {\n         expect(ps.get(2).getAttribute('class')).toBe('');\n         element(by.model('style1')).sendKeys('bold');\n         element(by.model('style2')).sendKeys('strike');\n         element(by.model('style3')).sendKeys('red');\n         expect(ps.get(2).getAttribute('class')).toBe('bold strike red');\n       });\n\n       it('array with map example should have 2 classes', function() {\n         expect(ps.last().getAttribute('class')).toBe('');\n         element(by.model('style4')).sendKeys('bold');\n         element(by.model('warning')).click();\n         expect(ps.last().getAttribute('class')).toBe('bold orange');\n       });\n     </file>\n   </example>\n\n   @example\n   ### Animations\n\n   The example below demonstrates how to perform animations using ngClass.\n\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-class\">\n     <file name=\"index.html\">\n      <input id=\"setbtn\" type=\"button\" value=\"set\" ng-click=\"myVar='my-class'\">\n      <input id=\"clearbtn\" type=\"button\" value=\"clear\" ng-click=\"myVar=''\">\n      <br>\n      <span class=\"base-class\" ng-class=\"myVar\">Sample Text</span>\n     </file>\n     <file name=\"style.css\">\n       .base-class {\n         transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n       }\n\n       .base-class.my-class {\n         color: red;\n         font-size:3em;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class', function() {\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n\n         element(by.id('setbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).\n           toMatch(/my-class/);\n\n         element(by.id('clearbtn')).click();\n\n         expect(element(by.css('.base-class')).getAttribute('class')).not.\n           toMatch(/my-class/);\n       });\n     </file>\n   </example>\n */\nvar ngClassDirective = classDirective('', true);\n\n/**\n * @ngdoc directive\n * @name ngClassOdd\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#addClass addClass}       | just before the class is applied to the element   |\n * | {@link ng.$animate#removeClass removeClass} | just before the class is removed from the element |\n *\n * @element ANY\n * @param {expression} ngClassOdd {@link guide/expression Expression} to eval. The result\n *   of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example name=\"ng-class-odd\">\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}}\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n *\n * <hr />\n * @example\n * An example on how to implement animations using `ngClassOdd`:\n *\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-class-odd-animate\">\n     <file name=\"index.html\">\n       <div ng-init=\"items=['Item 3', 'Item 2', 'Item 1', 'Item 0']\">\n         <button ng-click=\"items.unshift('Item ' + items.length)\">Add item</button>\n         <hr />\n         <table>\n           <tr ng-repeat=\"item in items\" ng-class-odd=\"'odd'\">\n             <td>{{ item }}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         background: rgba(255, 255, 0, 0.25);\n       }\n\n       .odd-add, .odd-remove {\n         transition: 1.5s;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should add new entries to the beginning of the list', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.count()).toBe(4);\n         expect(rows.get(0).getText()).toBe('Item 3');\n         expect(rows.get(1).getText()).toBe('Item 2');\n\n         button.click();\n\n         expect(rows.count()).toBe(5);\n         expect(rows.get(0).getText()).toBe('Item 4');\n         expect(rows.get(1).getText()).toBe('Item 3');\n       });\n\n       it('should add odd class to odd entries', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.get(0).getAttribute('class')).toMatch(/odd/);\n         expect(rows.get(1).getAttribute('class')).not.toMatch(/odd/);\n\n         button.click();\n\n         expect(rows.get(0).getAttribute('class')).toMatch(/odd/);\n         expect(rows.get(1).getAttribute('class')).not.toMatch(/odd/);\n       });\n     </file>\n   </example>\n */\nvar ngClassOddDirective = classDirective('Odd', 0);\n\n/**\n * @ngdoc directive\n * @name ngClassEven\n * @restrict AC\n *\n * @description\n * The `ngClassOdd` and `ngClassEven` directives work exactly as\n * {@link ng.directive:ngClass ngClass}, except they work in\n * conjunction with `ngRepeat` and take effect only on odd (even) rows.\n *\n * This directive can be applied only within the scope of an\n * {@link ng.directive:ngRepeat ngRepeat}.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#addClass addClass}       | just before the class is applied to the element   |\n * | {@link ng.$animate#removeClass removeClass} | just before the class is removed from the element |\n *\n * @element ANY\n * @param {expression} ngClassEven {@link guide/expression Expression} to eval. The\n *   result of the evaluation can be a string representing space delimited class names or an array.\n *\n * @example\n   <example name=\"ng-class-even\">\n     <file name=\"index.html\">\n        <ol ng-init=\"names=['John', 'Mary', 'Cate', 'Suz']\">\n          <li ng-repeat=\"name in names\">\n           <span ng-class-odd=\"'odd'\" ng-class-even=\"'even'\">\n             {{name}} &nbsp; &nbsp; &nbsp;\n           </span>\n          </li>\n        </ol>\n     </file>\n     <file name=\"style.css\">\n       .odd {\n         color: red;\n       }\n       .even {\n         color: blue;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-class-odd and ng-class-even', function() {\n         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).\n           toMatch(/odd/);\n         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).\n           toMatch(/even/);\n       });\n     </file>\n   </example>\n *\n * <hr />\n * @example\n * An example on how to implement animations using `ngClassEven`:\n *\n   <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-class-even-animate\">\n     <file name=\"index.html\">\n       <div ng-init=\"items=['Item 3', 'Item 2', 'Item 1', 'Item 0']\">\n         <button ng-click=\"items.unshift('Item ' + items.length)\">Add item</button>\n         <hr />\n         <table>\n           <tr ng-repeat=\"item in items\" ng-class-even=\"'even'\">\n             <td>{{ item }}</td>\n           </tr>\n         </table>\n       </div>\n     </file>\n     <file name=\"style.css\">\n       .even {\n         background: rgba(255, 255, 0, 0.25);\n       }\n\n       .even-add, .even-remove {\n         transition: 1.5s;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should add new entries to the beginning of the list', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.count()).toBe(4);\n         expect(rows.get(0).getText()).toBe('Item 3');\n         expect(rows.get(1).getText()).toBe('Item 2');\n\n         button.click();\n\n         expect(rows.count()).toBe(5);\n         expect(rows.get(0).getText()).toBe('Item 4');\n         expect(rows.get(1).getText()).toBe('Item 3');\n       });\n\n       it('should add even class to even entries', function() {\n         var button = element(by.buttonText('Add item'));\n         var rows = element.all(by.repeater('item in items'));\n\n         expect(rows.get(0).getAttribute('class')).not.toMatch(/even/);\n         expect(rows.get(1).getAttribute('class')).toMatch(/even/);\n\n         button.click();\n\n         expect(rows.get(0).getAttribute('class')).not.toMatch(/even/);\n         expect(rows.get(1).getAttribute('class')).toMatch(/even/);\n       });\n     </file>\n   </example>\n */\nvar ngClassEvenDirective = classDirective('Even', 1);\n\n/**\n * @ngdoc directive\n * @name ngCloak\n * @restrict AC\n *\n * @description\n * The `ngCloak` directive is used to prevent the AngularJS html template from being briefly\n * displayed by the browser in its raw (uncompiled) form while your application is loading. Use this\n * directive to avoid the undesirable flicker effect caused by the html template display.\n *\n * The directive can be applied to the `<body>` element, but the preferred usage is to apply\n * multiple `ngCloak` directives to small portions of the page to permit progressive rendering\n * of the browser view.\n *\n * `ngCloak` works in cooperation with the following css rule embedded within `angular.js` and\n * `angular.min.js`.\n * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).\n *\n * ```css\n * [ng\\:cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x-ng-cloak {\n *   display: none !important;\n * }\n * ```\n *\n * When this css rule is loaded by the browser, all html elements (including their children) that\n * are tagged with the `ngCloak` directive are hidden. When AngularJS encounters this directive\n * during the compilation of the template it deletes the `ngCloak` element attribute, making\n * the compiled element visible.\n *\n * For the best result, the `angular.js` script must be loaded in the head section of the html\n * document; alternatively, the css rule above must be included in the external stylesheet of the\n * application.\n *\n * @element ANY\n *\n * @example\n   <example name=\"ng-cloak\">\n     <file name=\"index.html\">\n        <div id=\"template1\" ng-cloak>{{ 'hello' }}</div>\n        <div id=\"template2\" class=\"ng-cloak\">{{ 'world' }}</div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should remove the template directive and css class', function() {\n         expect($('#template1').getAttribute('ng-cloak')).\n           toBeNull();\n         expect($('#template2').getAttribute('ng-cloak')).\n           toBeNull();\n       });\n     </file>\n   </example>\n *\n */\nvar ngCloakDirective = ngDirective({\n  compile: function(element, attr) {\n    attr.$set('ngCloak', undefined);\n    element.removeClass('ng-cloak');\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngController\n *\n * @description\n * The `ngController` directive attaches a controller class to the view. This is a key aspect of how angular\n * supports the principles behind the Model-View-Controller design pattern.\n *\n * MVC components in angular:\n *\n * * Model — Models are the properties of a scope; scopes are attached to the DOM where scope properties\n *   are accessed through bindings.\n * * View — The template (HTML with data bindings) that is rendered into the View.\n * * Controller — The `ngController` directive specifies a Controller class; the class contains business\n *   logic behind the application to decorate the scope with functions and values\n *\n * Note that you can also attach controllers to the DOM by declaring it in a route definition\n * via the {@link ngRoute.$route $route} service. A common mistake is to declare the controller\n * again using `ng-controller` in the template itself.  This will cause the controller to be attached\n * and executed twice.\n *\n * @element ANY\n * @scope\n * @priority 500\n * @param {expression} ngController Name of a constructor function registered with the current\n * {@link ng.$controllerProvider $controllerProvider} or an {@link guide/expression expression}\n * that on the current scope evaluates to a constructor function.\n *\n * The controller instance can be published into a scope property by specifying\n * `ng-controller=\"as propertyName\"`.\n *\n * @example\n * Here is a simple form for editing user contact information. Adding, removing, clearing, and\n * greeting are methods declared on the controller (see source tab). These methods can\n * easily be called from the AngularJS markup. Any changes to the data are automatically reflected\n * in the View without the need for a manual update.\n *\n * Two different declaration styles are included below:\n *\n * * one binds methods and properties directly onto the controller using `this`:\n * `ng-controller=\"SettingsController1 as settings\"`\n * * one injects `$scope` into the controller:\n * `ng-controller=\"SettingsController2\"`\n *\n * The second option is more common in the AngularJS community, and is generally used in boilerplates\n * and in this guide. However, there are advantages to binding properties directly to the controller\n * and avoiding scope.\n *\n * * Using `controller as` makes it obvious which controller you are accessing in the template when\n * multiple controllers apply to an element.\n * * If you are writing your controllers as classes you have easier access to the properties and\n * methods, which will appear on the scope, from inside the controller code.\n * * Since there is always a `.` in the bindings, you don't have to worry about prototypal\n * inheritance masking primitives.\n *\n * This example demonstrates the `controller as` syntax.\n *\n * <example name=\"ngControllerAs\" module=\"controllerAsExample\">\n *   <file name=\"index.html\">\n *    <div id=\"ctrl-as-exmpl\" ng-controller=\"SettingsController1 as settings\">\n *      <label>Name: <input type=\"text\" ng-model=\"settings.name\"/></label>\n *      <button ng-click=\"settings.greet()\">greet</button><br/>\n *      Contact:\n *      <ul>\n *        <li ng-repeat=\"contact in settings.contacts\">\n *          <select ng-model=\"contact.type\" aria-label=\"Contact method\" id=\"select_{{$index}}\">\n *             <option>phone</option>\n *             <option>email</option>\n *          </select>\n *          <input type=\"text\" ng-model=\"contact.value\" aria-labelledby=\"select_{{$index}}\" />\n *          <button ng-click=\"settings.clearContact(contact)\">clear</button>\n *          <button ng-click=\"settings.removeContact(contact)\" aria-label=\"Remove\">X</button>\n *        </li>\n *        <li><button ng-click=\"settings.addContact()\">add</button></li>\n *     </ul>\n *    </div>\n *   </file>\n *   <file name=\"app.js\">\n *    angular.module('controllerAsExample', [])\n *      .controller('SettingsController1', SettingsController1);\n *\n *    function SettingsController1() {\n *      this.name = 'John Smith';\n *      this.contacts = [\n *        {type: 'phone', value: '408 555 1212'},\n *        {type: 'email', value: 'john.smith@example.org'}\n *      ];\n *    }\n *\n *    SettingsController1.prototype.greet = function() {\n *      alert(this.name);\n *    };\n *\n *    SettingsController1.prototype.addContact = function() {\n *      this.contacts.push({type: 'email', value: 'yourname@example.org'});\n *    };\n *\n *    SettingsController1.prototype.removeContact = function(contactToRemove) {\n *     var index = this.contacts.indexOf(contactToRemove);\n *      this.contacts.splice(index, 1);\n *    };\n *\n *    SettingsController1.prototype.clearContact = function(contact) {\n *      contact.type = 'phone';\n *      contact.value = '';\n *    };\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should check controller as', function() {\n *       var container = element(by.id('ctrl-as-exmpl'));\n *         expect(container.element(by.model('settings.name'))\n *           .getAttribute('value')).toBe('John Smith');\n *\n *       var firstRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(0));\n *       var secondRepeat =\n *           container.element(by.repeater('contact in settings.contacts').row(1));\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('408 555 1212');\n *\n *       expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('john.smith@example.org');\n *\n *       firstRepeat.element(by.buttonText('clear')).click();\n *\n *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *           .toBe('');\n *\n *       container.element(by.buttonText('add')).click();\n *\n *       expect(container.element(by.repeater('contact in settings.contacts').row(2))\n *           .element(by.model('contact.value'))\n *           .getAttribute('value'))\n *           .toBe('yourname@example.org');\n *     });\n *   </file>\n * </example>\n *\n * This example demonstrates the \"attach to `$scope`\" style of controller.\n *\n * <example name=\"ngController\" module=\"controllerExample\">\n *  <file name=\"index.html\">\n *   <div id=\"ctrl-exmpl\" ng-controller=\"SettingsController2\">\n *     <label>Name: <input type=\"text\" ng-model=\"name\"/></label>\n *     <button ng-click=\"greet()\">greet</button><br/>\n *     Contact:\n *     <ul>\n *       <li ng-repeat=\"contact in contacts\">\n *         <select ng-model=\"contact.type\" id=\"select_{{$index}}\">\n *            <option>phone</option>\n *            <option>email</option>\n *         </select>\n *         <input type=\"text\" ng-model=\"contact.value\" aria-labelledby=\"select_{{$index}}\" />\n *         <button ng-click=\"clearContact(contact)\">clear</button>\n *         <button ng-click=\"removeContact(contact)\">X</button>\n *       </li>\n *       <li>[ <button ng-click=\"addContact()\">add</button> ]</li>\n *    </ul>\n *   </div>\n *  </file>\n *  <file name=\"app.js\">\n *   angular.module('controllerExample', [])\n *     .controller('SettingsController2', ['$scope', SettingsController2]);\n *\n *   function SettingsController2($scope) {\n *     $scope.name = 'John Smith';\n *     $scope.contacts = [\n *       {type:'phone', value:'408 555 1212'},\n *       {type:'email', value:'john.smith@example.org'}\n *     ];\n *\n *     $scope.greet = function() {\n *       alert($scope.name);\n *     };\n *\n *     $scope.addContact = function() {\n *       $scope.contacts.push({type:'email', value:'yourname@example.org'});\n *     };\n *\n *     $scope.removeContact = function(contactToRemove) {\n *       var index = $scope.contacts.indexOf(contactToRemove);\n *       $scope.contacts.splice(index, 1);\n *     };\n *\n *     $scope.clearContact = function(contact) {\n *       contact.type = 'phone';\n *       contact.value = '';\n *     };\n *   }\n *  </file>\n *  <file name=\"protractor.js\" type=\"protractor\">\n *    it('should check controller', function() {\n *      var container = element(by.id('ctrl-exmpl'));\n *\n *      expect(container.element(by.model('name'))\n *          .getAttribute('value')).toBe('John Smith');\n *\n *      var firstRepeat =\n *          container.element(by.repeater('contact in contacts').row(0));\n *      var secondRepeat =\n *          container.element(by.repeater('contact in contacts').row(1));\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('408 555 1212');\n *      expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('john.smith@example.org');\n *\n *      firstRepeat.element(by.buttonText('clear')).click();\n *\n *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))\n *          .toBe('');\n *\n *      container.element(by.buttonText('add')).click();\n *\n *      expect(container.element(by.repeater('contact in contacts').row(2))\n *          .element(by.model('contact.value'))\n *          .getAttribute('value'))\n *          .toBe('yourname@example.org');\n *    });\n *  </file>\n *</example>\n\n */\nvar ngControllerDirective = [function() {\n  return {\n    restrict: 'A',\n    scope: true,\n    controller: '@',\n    priority: 500\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngCsp\n *\n * @restrict A\n * @element ANY\n * @description\n *\n * AngularJS has some features that can conflict with certain restrictions that are applied when using\n * [CSP (Content Security Policy)](https://developer.mozilla.org/en/Security/CSP) rules.\n *\n * If you intend to implement CSP with these rules then you must tell AngularJS not to use these\n * features.\n *\n * This is necessary when developing things like Google Chrome Extensions or Universal Windows Apps.\n *\n *\n * The following default rules in CSP affect AngularJS:\n *\n * * The use of `eval()`, `Function(string)` and similar functions to dynamically create and execute\n * code from strings is forbidden. AngularJS makes use of this in the {@link $parse} service to\n * provide a 30% increase in the speed of evaluating AngularJS expressions. (This CSP rule can be\n * disabled with the CSP keyword `unsafe-eval`, but it is generally not recommended as it would\n * weaken the protections offered by CSP.)\n *\n * * The use of inline resources, such as inline `<script>` and `<style>` elements, are forbidden.\n * This prevents apps from injecting custom styles directly into the document. AngularJS makes use of\n * this to include some CSS rules (e.g. {@link ngCloak} and {@link ngHide}). To make these\n * directives work when a CSP rule is blocking inline styles, you must link to the `angular-csp.css`\n * in your HTML manually. (This CSP rule can be disabled with the CSP keyword `unsafe-inline`, but\n * it is generally not recommended as it would weaken the protections offered by CSP.)\n *\n * If you do not provide `ngCsp` then AngularJS tries to autodetect if CSP is blocking dynamic code\n * creation from strings (e.g., `unsafe-eval` not specified in CSP header) and automatically\n * deactivates this feature in the {@link $parse} service. This autodetection, however, triggers a\n * CSP error to be logged in the console:\n *\n * ```\n * Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of\n * script in the following Content Security Policy directive: \"default-src 'self'\". Note that\n * 'script-src' was not explicitly set, so 'default-src' is used as a fallback.\n * ```\n *\n * This error is harmless but annoying. To prevent the error from showing up, put the `ngCsp`\n * directive on an element of the HTML document that appears before the `<script>` tag that loads\n * the `angular.js` file.\n *\n * *Note: This directive is only available in the `ng-csp` and `data-ng-csp` attribute form.*\n *\n * You can specify which of the CSP related AngularJS features should be deactivated by providing\n * a value for the `ng-csp` attribute. The options are as follows:\n *\n * * no-inline-style: this stops AngularJS from injecting CSS styles into the DOM\n *\n * * no-unsafe-eval: this stops AngularJS from optimizing $parse with unsafe eval of strings\n *\n * You can use these values in the following combinations:\n *\n *\n * * No declaration means that AngularJS will assume that you can do inline styles, but it will do\n * a runtime check for unsafe-eval. E.g. `<body>`. This is backwardly compatible with previous\n * versions of AngularJS.\n *\n * * A simple `ng-csp` (or `data-ng-csp`) attribute will tell AngularJS to deactivate both inline\n * styles and unsafe eval. E.g. `<body ng-csp>`. This is backwardly compatible with previous\n * versions of AngularJS.\n *\n * * Specifying only `no-unsafe-eval` tells AngularJS that we must not use eval, but that we can\n * inject inline styles. E.g. `<body ng-csp=\"no-unsafe-eval\">`.\n *\n * * Specifying only `no-inline-style` tells AngularJS that we must not inject styles, but that we can\n * run eval - no automatic check for unsafe eval will occur. E.g. `<body ng-csp=\"no-inline-style\">`\n *\n * * Specifying both `no-unsafe-eval` and `no-inline-style` tells AngularJS that we must not inject\n * styles nor use eval, which is the same as an empty: ng-csp.\n * E.g.`<body ng-csp=\"no-inline-style;no-unsafe-eval\">`\n *\n * @example\n *\n * This example shows how to apply the `ngCsp` directive to the `html` tag.\n   ```html\n     <!doctype html>\n     <html ng-app ng-csp>\n     ...\n     ...\n     </html>\n   ```\n\n  <!-- Note: the `.csp` suffix in the example name triggers CSP mode in our http server! -->\n  <example name=\"example.csp\" module=\"cspExample\" ng-csp=\"true\">\n    <file name=\"index.html\">\n      <div ng-controller=\"MainController as ctrl\">\n        <div>\n          <button ng-click=\"ctrl.inc()\" id=\"inc\">Increment</button>\n          <span id=\"counter\">\n            {{ctrl.counter}}\n          </span>\n        </div>\n\n        <div>\n          <button ng-click=\"ctrl.evil()\" id=\"evil\">Evil</button>\n          <span id=\"evilError\">\n            {{ctrl.evilError}}\n          </span>\n        </div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n       angular.module('cspExample', [])\n         .controller('MainController', function MainController() {\n            this.counter = 0;\n            this.inc = function() {\n              this.counter++;\n            };\n            this.evil = function() {\n              try {\n                eval('1+2'); // eslint-disable-line no-eval\n              } catch (e) {\n                this.evilError = e.message;\n              }\n            };\n          });\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var util, webdriver;\n\n      var incBtn = element(by.id('inc'));\n      var counter = element(by.id('counter'));\n      var evilBtn = element(by.id('evil'));\n      var evilError = element(by.id('evilError'));\n\n      function getAndClearSevereErrors() {\n        return browser.manage().logs().get('browser').then(function(browserLog) {\n          return browserLog.filter(function(logEntry) {\n            return logEntry.level.value > webdriver.logging.Level.WARNING.value;\n          });\n        });\n      }\n\n      function clearErrors() {\n        getAndClearSevereErrors();\n      }\n\n      function expectNoErrors() {\n        getAndClearSevereErrors().then(function(filteredLog) {\n          expect(filteredLog.length).toEqual(0);\n          if (filteredLog.length) {\n            console.log('browser console errors: ' + util.inspect(filteredLog));\n          }\n        });\n      }\n\n      function expectError(regex) {\n        getAndClearSevereErrors().then(function(filteredLog) {\n          var found = false;\n          filteredLog.forEach(function(log) {\n            if (log.message.match(regex)) {\n              found = true;\n            }\n          });\n          if (!found) {\n            throw new Error('expected an error that matches ' + regex);\n          }\n        });\n      }\n\n      beforeEach(function() {\n        util = require('util');\n        webdriver = require('selenium-webdriver');\n      });\n\n      // For now, we only test on Chrome,\n      // as Safari does not load the page with Protractor's injected scripts,\n      // and Firefox webdriver always disables content security policy (#6358)\n      if (browser.params.browser !== 'chrome') {\n        return;\n      }\n\n      it('should not report errors when the page is loaded', function() {\n        // clear errors so we are not dependent on previous tests\n        clearErrors();\n        // Need to reload the page as the page is already loaded when\n        // we come here\n        browser.driver.getCurrentUrl().then(function(url) {\n          browser.get(url);\n        });\n        expectNoErrors();\n      });\n\n      it('should evaluate expressions', function() {\n        expect(counter.getText()).toEqual('0');\n        incBtn.click();\n        expect(counter.getText()).toEqual('1');\n        expectNoErrors();\n      });\n\n      it('should throw and report an error when using \"eval\"', function() {\n        evilBtn.click();\n        expect(evilError.getText()).toMatch(/Content Security Policy/);\n        expectError(/Content Security Policy/);\n      });\n    </file>\n  </example>\n  */\n\n// `ngCsp` is not implemented as a proper directive any more, because we need it be processed while\n// we bootstrap the app (before `$parse` is instantiated). For this reason, we just have the `csp()`\n// fn that looks for the `ng-csp` attribute anywhere in the current doc.\n\n/**\n * @ngdoc directive\n * @name ngClick\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * The ngClick directive allows you to specify custom behavior when\n * an element is clicked.\n *\n * @param {expression} ngClick {@link guide/expression Expression} to evaluate upon\n * click. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-click\">\n     <file name=\"index.html\">\n      <button ng-click=\"count = count + 1\" ng-init=\"count=0\">\n        Increment\n      </button>\n      <span>\n        count: {{count}}\n      </span>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-click', function() {\n         expect(element(by.binding('count')).getText()).toMatch('0');\n         element(by.css('button')).click();\n         expect(element(by.binding('count')).getText()).toMatch('1');\n       });\n     </file>\n   </example>\n */\n/*\n * A collection of directives that allows creation of custom event handlers that are defined as\n * AngularJS expressions and are compiled and executed within the current scope.\n */\nvar ngEventDirectives = {};\n\n// For events that might fire synchronously during DOM manipulation\n// we need to execute their event handlers asynchronously using $evalAsync,\n// so that they are not executed in an inconsistent state.\nvar forceAsyncEvents = {\n  'blur': true,\n  'focus': true\n};\nforEach(\n  'click dblclick mousedown mouseup mouseover mouseout mousemove mouseenter mouseleave keydown keyup keypress submit focus blur copy cut paste'.split(' '),\n  function(eventName) {\n    var directiveName = directiveNormalize('ng-' + eventName);\n    ngEventDirectives[directiveName] = ['$parse', '$rootScope', '$exceptionHandler', function($parse, $rootScope, $exceptionHandler) {\n      return createEventDirective($parse, $rootScope, $exceptionHandler, directiveName, eventName, forceAsyncEvents[eventName]);\n    }];\n  }\n);\n\nfunction createEventDirective($parse, $rootScope, $exceptionHandler, directiveName, eventName, forceAsync) {\n  return {\n    restrict: 'A',\n    compile: function($element, attr) {\n      // NOTE:\n      // We expose the powerful `$event` object on the scope that provides access to the Window,\n      // etc. This is OK, because expressions are not sandboxed any more (and the expression\n      // sandbox was never meant to be a security feature anyway).\n      var fn = $parse(attr[directiveName]);\n      return function ngEventHandler(scope, element) {\n        element.on(eventName, function(event) {\n          var callback = function() {\n            fn(scope, {$event: event});\n          };\n\n          if (!$rootScope.$$phase) {\n            scope.$apply(callback);\n          } else if (forceAsync) {\n            scope.$evalAsync(callback);\n          } else {\n            try {\n              callback();\n            } catch (error) {\n              $exceptionHandler(error);\n            }\n          }\n        });\n      };\n    }\n  };\n}\n\n/**\n * @ngdoc directive\n * @name ngDblclick\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * The `ngDblclick` directive allows you to specify custom behavior on a dblclick event.\n *\n * @param {expression} ngDblclick {@link guide/expression Expression} to evaluate upon\n * a dblclick. (The Event object is available as `$event`)\n *\n * @example\n   <example name=\"ng-dblclick\">\n     <file name=\"index.html\">\n      <button ng-dblclick=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on double click)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousedown\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * The ngMousedown directive allows you to specify custom behavior on mousedown event.\n *\n * @param {expression} ngMousedown {@link guide/expression Expression} to evaluate upon\n * mousedown. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mousedown\">\n     <file name=\"index.html\">\n      <button ng-mousedown=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse down)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseup\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseup event.\n *\n * @param {expression} ngMouseup {@link guide/expression Expression} to evaluate upon\n * mouseup. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseup\">\n     <file name=\"index.html\">\n      <button ng-mouseup=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (on mouse up)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngMouseover\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseover event.\n *\n * @param {expression} ngMouseover {@link guide/expression Expression} to evaluate upon\n * mouseover. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseover\">\n     <file name=\"index.html\">\n      <button ng-mouseover=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse is over)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseenter\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseenter event.\n *\n * @param {expression} ngMouseenter {@link guide/expression Expression} to evaluate upon\n * mouseenter. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseenter\">\n     <file name=\"index.html\">\n      <button ng-mouseenter=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse enters)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMouseleave\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mouseleave event.\n *\n * @param {expression} ngMouseleave {@link guide/expression Expression} to evaluate upon\n * mouseleave. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mouseleave\">\n     <file name=\"index.html\">\n      <button ng-mouseleave=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse leaves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngMousemove\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on mousemove event.\n *\n * @param {expression} ngMousemove {@link guide/expression Expression} to evaluate upon\n * mousemove. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-mousemove\">\n     <file name=\"index.html\">\n      <button ng-mousemove=\"count = count + 1\" ng-init=\"count=0\">\n        Increment (when mouse moves)\n      </button>\n      count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeydown\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on keydown event.\n *\n * @param {expression} ngKeydown {@link guide/expression Expression} to evaluate upon\n * keydown. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keydown\">\n     <file name=\"index.html\">\n      <input ng-keydown=\"count = count + 1\" ng-init=\"count=0\">\n      key down count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeyup\n * @restrict A\n * @element ANY\n * @priority 0\n *\n * @description\n * Specify custom behavior on keyup event.\n *\n * @param {expression} ngKeyup {@link guide/expression Expression} to evaluate upon\n * keyup. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keyup\">\n     <file name=\"index.html\">\n       <p>Typing in the input box below updates the key count</p>\n       <input ng-keyup=\"count = count + 1\" ng-init=\"count=0\"> key up count: {{count}}\n\n       <p>Typing in the input box below updates the keycode</p>\n       <input ng-keyup=\"event=$event\">\n       <p>event keyCode: {{ event.keyCode }}</p>\n       <p>event altKey: {{ event.altKey }}</p>\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngKeypress\n * @restrict A\n * @element ANY\n *\n * @description\n * Specify custom behavior on keypress event.\n *\n * @param {expression} ngKeypress {@link guide/expression Expression} to evaluate upon\n * keypress. ({@link guide/expression#-event- Event object is available as `$event`}\n * and can be interrogated for keyCode, altKey, etc.)\n *\n * @example\n   <example name=\"ng-keypress\">\n     <file name=\"index.html\">\n      <input ng-keypress=\"count = count + 1\" ng-init=\"count=0\">\n      key press count: {{count}}\n     </file>\n   </example>\n */\n\n\n/**\n * @ngdoc directive\n * @name ngSubmit\n * @restrict A\n * @element form\n * @priority 0\n *\n * @description\n * Enables binding AngularJS expressions to onsubmit events.\n *\n * Additionally it prevents the default action (which for form means sending the request to the\n * server and reloading the current page), but only if the form does not contain `action`,\n * `data-action`, or `x-action` attributes.\n *\n * <div class=\"alert alert-warning\">\n * **Warning:** Be careful not to cause \"double-submission\" by using both the `ngClick` and\n * `ngSubmit` handlers together. See the\n * {@link form#submitting-a-form-and-preventing-the-default-action `form` directive documentation}\n * for a detailed discussion of when `ngSubmit` may be triggered.\n * </div>\n *\n * @param {expression} ngSubmit {@link guide/expression Expression} to eval.\n * ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example module=\"submitExample\" name=\"ng-submit\">\n     <file name=\"index.html\">\n      <script>\n        angular.module('submitExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.list = [];\n            $scope.text = 'hello';\n            $scope.submit = function() {\n              if ($scope.text) {\n                $scope.list.push(this.text);\n                $scope.text = '';\n              }\n            };\n          }]);\n      </script>\n      <form ng-submit=\"submit()\" ng-controller=\"ExampleController\">\n        Enter text and hit enter:\n        <input type=\"text\" ng-model=\"text\" name=\"text\" />\n        <input type=\"submit\" id=\"submit\" value=\"Submit\" />\n        <pre>list={{list}}</pre>\n      </form>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should check ng-submit', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n         expect(element(by.model('text')).getAttribute('value')).toBe('');\n       });\n       it('should ignore empty strings', function() {\n         expect(element(by.binding('list')).getText()).toBe('list=[]');\n         element(by.css('#submit')).click();\n         element(by.css('#submit')).click();\n         expect(element(by.binding('list')).getText()).toContain('hello');\n        });\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngFocus\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on focus event.\n *\n * Note: As the `focus` event is executed synchronously when calling `input.focus()`\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @param {expression} ngFocus {@link guide/expression Expression} to evaluate upon\n * focus. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngBlur\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on blur event.\n *\n * A [blur event](https://developer.mozilla.org/en-US/docs/Web/Events/blur) fires when\n * an element has lost focus.\n *\n * Note: As the `blur` event is executed synchronously also during DOM manipulations\n * (e.g. removing a focussed input),\n * AngularJS executes the expression using `scope.$evalAsync` if the event is fired\n * during an `$apply` to ensure a consistent state.\n *\n * @param {expression} ngBlur {@link guide/expression Expression} to evaluate upon\n * blur. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n * See {@link ng.directive:ngClick ngClick}\n */\n\n/**\n * @ngdoc directive\n * @name ngCopy\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on copy event.\n *\n * @param {expression} ngCopy {@link guide/expression Expression} to evaluate upon\n * copy. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-copy\">\n     <file name=\"index.html\">\n      <input ng-copy=\"copied=true\" ng-init=\"copied=false; value='copy me'\" ng-model=\"value\">\n      copied: {{copied}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngCut\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on cut event.\n *\n * @param {expression} ngCut {@link guide/expression Expression} to evaluate upon\n * cut. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-cut\">\n     <file name=\"index.html\">\n      <input ng-cut=\"cut=true\" ng-init=\"cut=false; value='cut me'\" ng-model=\"value\">\n      cut: {{cut}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngPaste\n * @restrict A\n * @element window, input, select, textarea, a\n * @priority 0\n *\n * @description\n * Specify custom behavior on paste event.\n *\n * @param {expression} ngPaste {@link guide/expression Expression} to evaluate upon\n * paste. ({@link guide/expression#-event- Event object is available as `$event`})\n *\n * @example\n   <example name=\"ng-paste\">\n     <file name=\"index.html\">\n      <input ng-paste=\"paste=true\" ng-init=\"paste=false\" placeholder='paste here'>\n      pasted: {{paste}}\n     </file>\n   </example>\n */\n\n/**\n * @ngdoc directive\n * @name ngIf\n * @restrict A\n * @multiElement\n *\n * @description\n * The `ngIf` directive removes or recreates a portion of the DOM tree based on an\n * {expression}. If the expression assigned to `ngIf` evaluates to a false\n * value then the element is removed from the DOM, otherwise a clone of the\n * element is reinserted into the DOM.\n *\n * `ngIf` differs from `ngShow` and `ngHide` in that `ngIf` completely removes and recreates the\n * element in the DOM rather than changing its visibility via the `display` css property.  A common\n * case when this difference is significant is when using css selectors that rely on an element's\n * position within the DOM, such as the `:first-child` or `:last-child` pseudo-classes.\n *\n * Note that when an element is removed using `ngIf` its scope is destroyed and a new scope\n * is created when the element is restored.  The scope created within `ngIf` inherits from\n * its parent scope using\n * [prototypal inheritance](https://github.com/angular/angular.js/wiki/Understanding-Scopes#javascript-prototypal-inheritance).\n * An important implication of this is if `ngModel` is used within `ngIf` to bind to\n * a javascript primitive defined in the parent scope. In this case any modifications made to the\n * variable within the child scope will override (hide) the value in the parent scope.\n *\n * Also, `ngIf` recreates elements using their compiled state. An example of this behavior\n * is if an element's class attribute is directly modified after it's compiled, using something like\n * jQuery's `.addClass()` method, and the element is later removed. When `ngIf` recreates the element\n * the added class will be lost because the original compiled state is used to regenerate the element.\n *\n * Additionally, you can provide animations via the `ngAnimate` module to animate the `enter`\n * and `leave` effects.\n *\n * @animations\n * | Animation                        | Occurs                               |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | just after the `ngIf` contents change and a new DOM element is created and injected into the `ngIf` container |\n * | {@link ng.$animate#leave leave}  | just before the `ngIf` contents are removed from the DOM |\n *\n * @element ANY\n * @scope\n * @priority 600\n * @param {expression} ngIf If the {@link guide/expression expression} is falsy then\n *     the element is removed from the DOM tree. If it is truthy a copy of the compiled\n *     element is added to the DOM tree.\n *\n * @example\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-if\">\n    <file name=\"index.html\">\n      <label>Click me: <input type=\"checkbox\" ng-model=\"checked\" ng-init=\"checked=true\" /></label><br/>\n      Show when checked:\n      <span ng-if=\"checked\" class=\"animate-if\">\n        This is removed when the checkbox is unchecked.\n      </span>\n    </file>\n    <file name=\"animations.css\">\n      .animate-if {\n        background:white;\n        border:1px solid black;\n        padding:10px;\n      }\n\n      .animate-if.ng-enter, .animate-if.ng-leave {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n      }\n\n      .animate-if.ng-enter,\n      .animate-if.ng-leave.ng-leave-active {\n        opacity:0;\n      }\n\n      .animate-if.ng-leave,\n      .animate-if.ng-enter.ng-enter-active {\n        opacity:1;\n      }\n    </file>\n  </example>\n */\nvar ngIfDirective = ['$animate', '$compile', function($animate, $compile) {\n  return {\n    multiElement: true,\n    transclude: 'element',\n    priority: 600,\n    terminal: true,\n    restrict: 'A',\n    $$tlb: true,\n    link: function($scope, $element, $attr, ctrl, $transclude) {\n        var block, childScope, previousElements;\n        $scope.$watch($attr.ngIf, function ngIfWatchAction(value) {\n\n          if (value) {\n            if (!childScope) {\n              $transclude(function(clone, newScope) {\n                childScope = newScope;\n                clone[clone.length++] = $compile.$$createComment('end ngIf', $attr.ngIf);\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block = {\n                  clone: clone\n                };\n                $animate.enter(clone, $element.parent(), $element);\n              });\n            }\n          } else {\n            if (previousElements) {\n              previousElements.remove();\n              previousElements = null;\n            }\n            if (childScope) {\n              childScope.$destroy();\n              childScope = null;\n            }\n            if (block) {\n              previousElements = getBlockNodes(block.clone);\n              $animate.leave(previousElements).done(function(response) {\n                if (response !== false) previousElements = null;\n              });\n              block = null;\n            }\n          }\n        });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngInclude\n * @restrict ECA\n * @scope\n * @priority -400\n *\n * @description\n * Fetches, compiles and includes an external HTML fragment.\n *\n * By default, the template URL is restricted to the same domain and protocol as the\n * application document. This is done by calling {@link $sce#getTrustedResourceUrl\n * $sce.getTrustedResourceUrl} on it. To load templates from other domains or protocols\n * you may either add them to your {@link ng.$sceDelegateProvider#trustedResourceUrlList trusted\n * resource URL list} or {@link $sce#trustAsResourceUrl wrap them} as trusted values. Refer to\n * AngularJS's {@link ng.$sce Strict Contextual Escaping}.\n *\n * In addition, the browser's\n * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)\n * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)\n * policy may further restrict whether the template is successfully loaded.\n * For example, `ngInclude` won't work for cross-domain requests on all browsers and for `file://`\n * access on some browsers.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | when the expression changes, on the new include |\n * | {@link ng.$animate#leave leave}  | when the expression changes, on the old include |\n *\n * The enter and leave animation occur concurrently.\n *\n * @param {string} ngInclude|src AngularJS expression evaluating to URL. If the source is a string constant,\n *                 make sure you wrap it in **single** quotes, e.g. `src=\"'myPartialTemplate.html'\"`.\n * @param {string=} onload Expression to evaluate when a new partial is loaded.\n *                  <div class=\"alert alert-warning\">\n *                  **Note:** When using onload on SVG elements in IE11, the browser will try to call\n *                  a function with the name on the window element, which will usually throw a\n *                  \"function is undefined\" error. To fix this, you can instead use `data-onload` or a\n *                  different form that {@link guide/directive#normalization matches} `onload`.\n *                  </div>\n   *\n * @param {string=} autoscroll Whether `ngInclude` should call {@link ng.$anchorScroll\n *                  $anchorScroll} to scroll the viewport after the content is loaded.\n *\n *                  - If the attribute is not set, disable scrolling.\n *                  - If the attribute is set without value, enable scrolling.\n *                  - Otherwise enable scrolling only if the expression evaluates to truthy value.\n *\n * @example\n  <example module=\"includeExample\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-include\">\n    <file name=\"index.html\">\n     <div ng-controller=\"ExampleController\">\n       <select ng-model=\"template\" ng-options=\"t.name for t in templates\">\n        <option value=\"\">(blank)</option>\n       </select>\n       url of the template: <code>{{template.url}}</code>\n       <hr/>\n       <div class=\"slide-animate-container\">\n         <div class=\"slide-animate\" ng-include=\"template.url\"></div>\n       </div>\n     </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('includeExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.templates =\n            [{ name: 'template1.html', url: 'template1.html'},\n             { name: 'template2.html', url: 'template2.html'}];\n          $scope.template = $scope.templates[0];\n        }]);\n     </file>\n    <file name=\"template1.html\">\n      Content of template1.html\n    </file>\n    <file name=\"template2.html\">\n      Content of template2.html\n    </file>\n    <file name=\"animations.css\">\n      .slide-animate-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .slide-animate {\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter, .slide-animate.ng-leave {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n        display:block;\n        padding:10px;\n      }\n\n      .slide-animate.ng-enter {\n        top:-50px;\n      }\n      .slide-animate.ng-enter.ng-enter-active {\n        top:0;\n      }\n\n      .slide-animate.ng-leave {\n        top:0;\n      }\n      .slide-animate.ng-leave.ng-leave-active {\n        top:50px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var templateSelect = element(by.model('template'));\n      var includeElem = element(by.css('[ng-include]'));\n\n      it('should load template1.html', function() {\n        expect(includeElem.getText()).toMatch(/Content of template1.html/);\n      });\n\n      it('should load template2.html', function() {\n        if (browser.params.browser === 'firefox') {\n          // Firefox can't handle using selects\n          // See https://github.com/angular/protractor/issues/480\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(2).click();\n        expect(includeElem.getText()).toMatch(/Content of template2.html/);\n      });\n\n      it('should change to blank', function() {\n        if (browser.params.browser === 'firefox') {\n          // Firefox can't handle using selects\n          return;\n        }\n        templateSelect.click();\n        templateSelect.all(by.css('option')).get(0).click();\n        expect(includeElem.isPresent()).toBe(false);\n      });\n    </file>\n  </example>\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentRequested\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted every time the ngInclude content is requested.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentLoaded\n * @eventType emit on the current ngInclude scope\n * @description\n * Emitted every time the ngInclude content is reloaded.\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\n\n\n/**\n * @ngdoc event\n * @name ngInclude#$includeContentError\n * @eventType emit on the scope ngInclude was declared in\n * @description\n * Emitted when a template HTTP request yields an erroneous response (status < 200 || status > 299)\n *\n * @param {Object} angularEvent Synthetic event object.\n * @param {String} src URL of content to load.\n */\nvar ngIncludeDirective = ['$templateRequest', '$anchorScroll', '$animate',\n                  function($templateRequest,   $anchorScroll,   $animate) {\n  return {\n    restrict: 'ECA',\n    priority: 400,\n    terminal: true,\n    transclude: 'element',\n    controller: angular.noop,\n    compile: function(element, attr) {\n      var srcExp = attr.ngInclude || attr.src,\n          onloadExp = attr.onload || '',\n          autoScrollExp = attr.autoscroll;\n\n      return function(scope, $element, $attr, ctrl, $transclude) {\n        var changeCounter = 0,\n            currentScope,\n            previousElement,\n            currentElement;\n\n        var cleanupLastIncludeContent = function() {\n          if (previousElement) {\n            previousElement.remove();\n            previousElement = null;\n          }\n          if (currentScope) {\n            currentScope.$destroy();\n            currentScope = null;\n          }\n          if (currentElement) {\n            $animate.leave(currentElement).done(function(response) {\n              if (response !== false) previousElement = null;\n            });\n            previousElement = currentElement;\n            currentElement = null;\n          }\n        };\n\n        scope.$watch(srcExp, function ngIncludeWatchAction(src) {\n          var afterAnimation = function(response) {\n            if (response !== false && isDefined(autoScrollExp) &&\n              (!autoScrollExp || scope.$eval(autoScrollExp))) {\n                $anchorScroll();\n            }\n          };\n          var thisChangeId = ++changeCounter;\n\n          if (src) {\n            //set the 2nd param to true to ignore the template request error so that the inner\n            //contents and scope can be cleaned up.\n            $templateRequest(src, true).then(function(response) {\n              if (scope.$$destroyed) return;\n\n              if (thisChangeId !== changeCounter) return;\n              var newScope = scope.$new();\n              ctrl.template = response;\n\n              // Note: This will also link all children of ng-include that were contained in the original\n              // html. If that content contains controllers, ... they could pollute/change the scope.\n              // However, using ng-include on an element with additional content does not make sense...\n              // Note: We can't remove them in the cloneAttchFn of $transclude as that\n              // function is called before linking the content, which would apply child\n              // directives to non existing elements.\n              var clone = $transclude(newScope, function(clone) {\n                cleanupLastIncludeContent();\n                $animate.enter(clone, null, $element).done(afterAnimation);\n              });\n\n              currentScope = newScope;\n              currentElement = clone;\n\n              currentScope.$emit('$includeContentLoaded', src);\n              scope.$eval(onloadExp);\n            }, function() {\n              if (scope.$$destroyed) return;\n\n              if (thisChangeId === changeCounter) {\n                cleanupLastIncludeContent();\n                scope.$emit('$includeContentError', src);\n              }\n            });\n            scope.$emit('$includeContentRequested', src);\n          } else {\n            cleanupLastIncludeContent();\n            ctrl.template = null;\n          }\n        });\n      };\n    }\n  };\n}];\n\n// This directive is called during the $transclude call of the first `ngInclude` directive.\n// It will replace and compile the content of the element with the loaded template.\n// We need this directive so that the element content is already filled when\n// the link function of another directive on the same element as ngInclude\n// is called.\nvar ngIncludeFillContentDirective = ['$compile',\n  function($compile) {\n    return {\n      restrict: 'ECA',\n      priority: -400,\n      require: 'ngInclude',\n      link: function(scope, $element, $attr, ctrl) {\n        if (toString.call($element[0]).match(/SVG/)) {\n          // WebKit: https://bugs.webkit.org/show_bug.cgi?id=135698 --- SVG elements do not\n          // support innerHTML, so detect this here and try to generate the contents\n          // specially.\n          $element.empty();\n          $compile(jqLiteBuildFragment(ctrl.template, window.document).childNodes)(scope,\n              function namespaceAdaptedClone(clone) {\n            $element.append(clone);\n          }, {futureParentElement: $element});\n          return;\n        }\n\n        $element.html(ctrl.template);\n        $compile($element.contents())(scope);\n      }\n    };\n  }];\n\n/**\n * @ngdoc directive\n * @name ngInit\n * @restrict AC\n * @priority 450\n * @element ANY\n *\n * @param {expression} ngInit {@link guide/expression Expression} to eval.\n *\n * @description\n * The `ngInit` directive allows you to evaluate an expression in the\n * current scope.\n *\n * <div class=\"alert alert-danger\">\n * This directive can be abused to add unnecessary amounts of logic into your templates.\n * There are only a few appropriate uses of `ngInit`:\n * <ul>\n *   <li>aliasing special properties of {@link ng.directive:ngRepeat `ngRepeat`},\n *     as seen in the demo below.</li>\n *   <li>initializing data during development, or for examples, as seen throughout these docs.</li>\n *   <li>injecting data via server side scripting.</li>\n * </ul>\n *\n * Besides these few cases, you should use {@link guide/component Components} or\n * {@link guide/controller Controllers} rather than `ngInit` to initialize values on a scope.\n * </div>\n *\n * <div class=\"alert alert-warning\">\n * **Note**: If you have assignment in `ngInit` along with a {@link ng.$filter `filter`}, make\n * sure you have parentheses to ensure correct operator precedence:\n * <pre class=\"prettyprint\">\n * `<div ng-init=\"test1 = ($index | toString)\"></div>`\n * </pre>\n * </div>\n *\n * @example\n   <example module=\"initExample\" name=\"ng-init\">\n     <file name=\"index.html\">\n   <script>\n     angular.module('initExample', [])\n       .controller('ExampleController', ['$scope', function($scope) {\n         $scope.list = [['a', 'b'], ['c', 'd']];\n       }]);\n   </script>\n   <div ng-controller=\"ExampleController\">\n     <div ng-repeat=\"innerList in list\" ng-init=\"outerIndex = $index\">\n       <div ng-repeat=\"value in innerList\" ng-init=\"innerIndex = $index\">\n          <span class=\"example-init\">list[ {{outerIndex}} ][ {{innerIndex}} ] = {{value}};</span>\n       </div>\n     </div>\n   </div>\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       it('should alias index positions', function() {\n         var elements = element.all(by.css('.example-init'));\n         expect(elements.get(0).getText()).toBe('list[ 0 ][ 0 ] = a;');\n         expect(elements.get(1).getText()).toBe('list[ 0 ][ 1 ] = b;');\n         expect(elements.get(2).getText()).toBe('list[ 1 ][ 0 ] = c;');\n         expect(elements.get(3).getText()).toBe('list[ 1 ][ 1 ] = d;');\n       });\n     </file>\n   </example>\n */\nvar ngInitDirective = ngDirective({\n  priority: 450,\n  compile: function() {\n    return {\n      pre: function(scope, element, attrs) {\n        scope.$eval(attrs.ngInit);\n      }\n    };\n  }\n});\n\n/**\n * @ngdoc directive\n * @name ngList\n * @restrict A\n * @priority 100\n *\n * @param {string=} ngList optional delimiter that should be used to split the value.\n *\n * @description\n * Text input that converts between a delimited string and an array of strings. The default\n * delimiter is a comma followed by a space - equivalent to `ng-list=\", \"`. You can specify a custom\n * delimiter as the value of the `ngList` attribute - for example, `ng-list=\" | \"`.\n *\n * The behaviour of the directive is affected by the use of the `ngTrim` attribute.\n * * If `ngTrim` is set to `\"false\"` then whitespace around both the separator and each\n *   list item is respected. This implies that the user of the directive is responsible for\n *   dealing with whitespace but also allows you to use whitespace as a delimiter, such as a\n *   tab or newline character.\n * * Otherwise whitespace around the delimiter is ignored when splitting (although it is respected\n *   when joining the list items back together) and whitespace around each list item is stripped\n *   before it is added to the model.\n *\n * @example\n * ### Validation\n *\n * <example name=\"ngList-directive\" module=\"listExample\">\n *   <file name=\"app.js\">\n *      angular.module('listExample', [])\n *        .controller('ExampleController', ['$scope', function($scope) {\n *          $scope.names = ['morpheus', 'neo', 'trinity'];\n *        }]);\n *   </file>\n *   <file name=\"index.html\">\n *    <form name=\"myForm\" ng-controller=\"ExampleController\">\n *      <label>List: <input name=\"namesInput\" ng-model=\"names\" ng-list required></label>\n *      <span role=\"alert\">\n *        <span class=\"error\" ng-show=\"myForm.namesInput.$error.required\">\n *        Required!</span>\n *      </span>\n *      <br>\n *      <tt>names = {{names}}</tt><br/>\n *      <tt>myForm.namesInput.$valid = {{myForm.namesInput.$valid}}</tt><br/>\n *      <tt>myForm.namesInput.$error = {{myForm.namesInput.$error}}</tt><br/>\n *      <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>\n *      <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>\n *     </form>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var listInput = element(by.model('names'));\n *     var names = element(by.exactBinding('names'));\n *     var valid = element(by.binding('myForm.namesInput.$valid'));\n *     var error = element(by.css('span.error'));\n *\n *     it('should initialize to model', function() {\n *       expect(names.getText()).toContain('[\"morpheus\",\"neo\",\"trinity\"]');\n *       expect(valid.getText()).toContain('true');\n *       expect(error.getCssValue('display')).toBe('none');\n *     });\n *\n *     it('should be invalid if empty', function() {\n *       listInput.clear();\n *       listInput.sendKeys('');\n *\n *       expect(names.getText()).toContain('');\n *       expect(valid.getText()).toContain('false');\n *       expect(error.getCssValue('display')).not.toBe('none');\n *     });\n *   </file>\n * </example>\n *\n * @example\n * ### Splitting on newline\n *\n * <example name=\"ngList-directive-newlines\">\n *   <file name=\"index.html\">\n *    <textarea ng-model=\"list\" ng-list=\"&#10;\" ng-trim=\"false\"></textarea>\n *    <pre>{{ list | json }}</pre>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it(\"should split the text by newlines\", function() {\n *       var listInput = element(by.model('list'));\n *       var output = element(by.binding('list | json'));\n *       listInput.sendKeys('abc\\ndef\\nghi');\n *       expect(output.getText()).toContain('[\\n  \"abc\",\\n  \"def\",\\n  \"ghi\"\\n]');\n *     });\n *   </file>\n * </example>\n *\n */\nvar ngListDirective = function() {\n  return {\n    restrict: 'A',\n    priority: 100,\n    require: 'ngModel',\n    link: function(scope, element, attr, ctrl) {\n      var ngList = attr.ngList || ', ';\n      var trimValues = attr.ngTrim !== 'false';\n      var separator = trimValues ? trim(ngList) : ngList;\n\n      var parse = function(viewValue) {\n        // If the viewValue is invalid (say required but empty) it will be `undefined`\n        if (isUndefined(viewValue)) return;\n\n        var list = [];\n\n        if (viewValue) {\n          forEach(viewValue.split(separator), function(value) {\n            if (value) list.push(trimValues ? trim(value) : value);\n          });\n        }\n\n        return list;\n      };\n\n      ctrl.$parsers.push(parse);\n      ctrl.$formatters.push(function(value) {\n        if (isArray(value)) {\n          return value.join(ngList);\n        }\n\n        return undefined;\n      });\n\n      // Override the standard $isEmpty because an empty array means the input is empty.\n      ctrl.$isEmpty = function(value) {\n        return !value || !value.length;\n      };\n    }\n  };\n};\n\n/* global VALID_CLASS: true,\n  INVALID_CLASS: true,\n  PRISTINE_CLASS: true,\n  DIRTY_CLASS: true,\n  UNTOUCHED_CLASS: true,\n  TOUCHED_CLASS: true,\n  PENDING_CLASS: true,\n  addSetValidityMethod: true,\n  setupValidity: true,\n  defaultModelOptions: false\n*/\n\n\nvar VALID_CLASS = 'ng-valid',\n    INVALID_CLASS = 'ng-invalid',\n    PRISTINE_CLASS = 'ng-pristine',\n    DIRTY_CLASS = 'ng-dirty',\n    UNTOUCHED_CLASS = 'ng-untouched',\n    TOUCHED_CLASS = 'ng-touched',\n    EMPTY_CLASS = 'ng-empty',\n    NOT_EMPTY_CLASS = 'ng-not-empty';\n\nvar ngModelMinErr = minErr('ngModel');\n\n/**\n * @ngdoc type\n * @name ngModel.NgModelController\n * @property {*} $viewValue The actual value from the control's view. For `input` elements, this is a\n * String. See {@link ngModel.NgModelController#$setViewValue} for information about when the $viewValue\n * is set.\n *\n * @property {*} $modelValue The value in the model that the control is bound to.\n *\n * @property {Array.<Function>} $parsers Array of functions to execute, as a pipeline, whenever\n *  the control updates the ngModelController with a new {@link ngModel.NgModelController#$viewValue\n    `$viewValue`} from the DOM, usually via user input.\n    See {@link ngModel.NgModelController#$setViewValue `$setViewValue()`} for a detailed lifecycle explanation.\n    Note that the `$parsers` are not called when the bound ngModel expression changes programmatically.\n\n  The functions are called in array order, each passing\n    its return value through to the next. The last return value is forwarded to the\n    {@link ngModel.NgModelController#$validators `$validators`} collection.\n\n  Parsers are used to sanitize / convert the {@link ngModel.NgModelController#$viewValue\n    `$viewValue`}.\n\n  Returning `undefined` from a parser means a parse error occurred. In that case,\n    no {@link ngModel.NgModelController#$validators `$validators`} will run and the `ngModel`\n    will be set to `undefined` unless {@link ngModelOptions `ngModelOptions.allowInvalid`}\n    is set to `true`. The parse error is stored in `ngModel.$error.parse`.\n\n  This simple example shows a parser that would convert text input value to lowercase:\n * ```js\n * function parse(value) {\n *   if (value) {\n *     return value.toLowerCase();\n *   }\n * }\n * ngModelController.$parsers.push(parse);\n * ```\n\n *\n * @property {Array.<Function>} $formatters Array of functions to execute, as a pipeline, whenever\n    the bound ngModel expression changes programmatically. The `$formatters` are not called when the\n    value of the control is changed by user interaction.\n\n  Formatters are used to format / convert the {@link ngModel.NgModelController#$modelValue\n    `$modelValue`} for display in the control.\n\n  The functions are called in reverse array order, each passing the value through to the\n    next. The last return value is used as the actual DOM value.\n\n  This simple example shows a formatter that would convert the model value to uppercase:\n\n * ```js\n * function format(value) {\n *   if (value) {\n *     return value.toUpperCase();\n *   }\n * }\n * ngModel.$formatters.push(format);\n * ```\n *\n * @property {Object.<string, function>} $validators A collection of validators that are applied\n *      whenever the model value changes. The key value within the object refers to the name of the\n *      validator while the function refers to the validation operation. The validation operation is\n *      provided with the model value as an argument and must return a true or false value depending\n *      on the response of that validation.\n *\n * ```js\n * ngModel.$validators.validCharacters = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *   return /[0-9]+/.test(value) &&\n *          /[a-z]+/.test(value) &&\n *          /[A-Z]+/.test(value) &&\n *          /\\W+/.test(value);\n * };\n * ```\n *\n * @property {Object.<string, function>} $asyncValidators A collection of validations that are expected to\n *      perform an asynchronous validation (e.g. a HTTP request). The validation function that is provided\n *      is expected to return a promise when it is run during the model validation process. Once the promise\n *      is delivered then the validation status will be set to true when fulfilled and false when rejected.\n *      When the asynchronous validators are triggered, each of the validators will run in parallel and the model\n *      value will only be updated once all validators have been fulfilled. As long as an asynchronous validator\n *      is unfulfilled, its key will be added to the controllers `$pending` property. Also, all asynchronous validators\n *      will only run once all synchronous validators have passed.\n *\n * Please note that if $http is used then it is important that the server returns a success HTTP response code\n * in order to fulfill the validation and a status level of `4xx` in order to reject the validation.\n *\n * ```js\n * ngModel.$asyncValidators.uniqueUsername = function(modelValue, viewValue) {\n *   var value = modelValue || viewValue;\n *\n *   // Lookup user by username\n *   return $http.get('/api/users/' + value).\n *      then(function resolved() {\n *        //username exists, this means validation fails\n *        return $q.reject('exists');\n *      }, function rejected() {\n *        //username does not exist, therefore this validation passes\n *        return true;\n *      });\n * };\n * ```\n *\n * @property {Array.<Function>} $viewChangeListeners Array of functions to execute whenever\n *     a change to {@link ngModel.NgModelController#$viewValue `$viewValue`} has caused a change\n *     to {@link ngModel.NgModelController#$modelValue `$modelValue`}.\n *     It is called with no arguments, and its return value is ignored.\n *     This can be used in place of additional $watches against the model value.\n *\n * @property {Object} $error An object hash with all failing validator ids as keys.\n * @property {Object} $pending An object hash with all pending validator ids as keys.\n *\n * @property {boolean} $untouched True if control has not lost focus yet.\n * @property {boolean} $touched True if control has lost focus.\n * @property {boolean} $pristine True if user has not interacted with the control yet.\n * @property {boolean} $dirty True if user has already interacted with the control.\n * @property {boolean} $valid True if there is no error.\n * @property {boolean} $invalid True if at least one error on the control.\n * @property {string} $name The name attribute of the control.\n *\n * @description\n *\n * `NgModelController` provides API for the {@link ngModel `ngModel`} directive.\n * The controller contains services for data-binding, validation, CSS updates, and value formatting\n * and parsing. It purposefully does not contain any logic which deals with DOM rendering or\n * listening to DOM events.\n * Such DOM related logic should be provided by other directives which make use of\n * `NgModelController` for data-binding to control elements.\n * AngularJS provides this DOM logic for most {@link input `input`} elements.\n * At the end of this page you can find a {@link ngModel.NgModelController#custom-control-example\n * custom control example} that uses `ngModelController` to bind to `contenteditable` elements.\n *\n * @example\n * ### Custom Control Example\n * This example shows how to use `NgModelController` with a custom control to achieve\n * data-binding. Notice how different directives (`contenteditable`, `ng-model`, and `required`)\n * collaborate together to achieve the desired result.\n *\n * `contenteditable` is an HTML5 attribute, which tells the browser to let the element\n * contents be edited in place by the user.\n *\n * We are using the {@link ng.service:$sce $sce} service here and include the {@link ngSanitize $sanitize}\n * module to automatically remove \"bad\" content like inline event listener (e.g. `<span onclick=\"...\">`).\n * However, as we are using `$sce` the model can still decide to provide unsafe content if it marks\n * that content using the `$sce` service.\n *\n * <example name=\"NgModelController\" module=\"customControl\" deps=\"angular-sanitize.js\">\n    <file name=\"style.css\">\n      [contenteditable] {\n        border: 1px solid black;\n        background-color: white;\n        min-height: 20px;\n      }\n\n      .ng-invalid {\n        border: 1px solid red;\n      }\n\n    </file>\n    <file name=\"script.js\">\n      angular.module('customControl', ['ngSanitize']).\n        directive('contenteditable', ['$sce', function($sce) {\n          return {\n            restrict: 'A', // only activate on element attribute\n            require: '?ngModel', // get a hold of NgModelController\n            link: function(scope, element, attrs, ngModel) {\n              if (!ngModel) return; // do nothing if no ng-model\n\n              // Specify how UI should be updated\n              ngModel.$render = function() {\n                element.html($sce.getTrustedHtml(ngModel.$viewValue || ''));\n              };\n\n              // Listen for change events to enable binding\n              element.on('blur keyup change', function() {\n                scope.$evalAsync(read);\n              });\n              read(); // initialize\n\n              // Write data to the model\n              function read() {\n                var html = element.html();\n                // When we clear the content editable the browser leaves a <br> behind\n                // If strip-br attribute is provided then we strip this out\n                if (attrs.stripBr && html === '<br>') {\n                  html = '';\n                }\n                ngModel.$setViewValue(html);\n              }\n            }\n          };\n        }]);\n    </file>\n    <file name=\"index.html\">\n      <form name=\"myForm\">\n       <div contenteditable\n            name=\"myWidget\" ng-model=\"userContent\"\n            strip-br=\"true\"\n            required>Change me!</div>\n        <span ng-show=\"myForm.myWidget.$error.required\">Required!</span>\n       <hr>\n       <textarea ng-model=\"userContent\" aria-label=\"Dynamic textarea\"></textarea>\n      </form>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n    it('should data-bind and become invalid', function() {\n      if (browser.params.browser === 'safari' || browser.params.browser === 'firefox') {\n        // SafariDriver can't handle contenteditable\n        // and Firefox driver can't clear contenteditables very well\n        return;\n      }\n      var contentEditable = element(by.css('[contenteditable]'));\n      var content = 'Change me!';\n\n      expect(contentEditable.getText()).toEqual(content);\n\n      contentEditable.clear();\n      contentEditable.sendKeys(protractor.Key.BACK_SPACE);\n      expect(contentEditable.getText()).toEqual('');\n      expect(contentEditable.getAttribute('class')).toMatch(/ng-invalid-required/);\n    });\n    </file>\n * </example>\n *\n *\n */\nNgModelController.$inject = ['$scope', '$exceptionHandler', '$attrs', '$element', '$parse', '$animate', '$timeout', '$q', '$interpolate'];\nfunction NgModelController($scope, $exceptionHandler, $attr, $element, $parse, $animate, $timeout, $q, $interpolate) {\n  this.$viewValue = Number.NaN;\n  this.$modelValue = Number.NaN;\n  this.$$rawModelValue = undefined; // stores the parsed modelValue / model set from scope regardless of validity.\n  this.$validators = {};\n  this.$asyncValidators = {};\n  this.$parsers = [];\n  this.$formatters = [];\n  this.$viewChangeListeners = [];\n  this.$untouched = true;\n  this.$touched = false;\n  this.$pristine = true;\n  this.$dirty = false;\n  this.$valid = true;\n  this.$invalid = false;\n  this.$error = {}; // keep invalid keys here\n  this.$$success = {}; // keep valid keys here\n  this.$pending = undefined; // keep pending keys here\n  this.$name = $interpolate($attr.name || '', false)($scope);\n  this.$$parentForm = nullFormCtrl;\n  this.$options = defaultModelOptions;\n  this.$$updateEvents = '';\n  // Attach the correct context to the event handler function for updateOn\n  this.$$updateEventHandler = this.$$updateEventHandler.bind(this);\n\n  this.$$parsedNgModel = $parse($attr.ngModel);\n  this.$$parsedNgModelAssign = this.$$parsedNgModel.assign;\n  this.$$ngModelGet = this.$$parsedNgModel;\n  this.$$ngModelSet = this.$$parsedNgModelAssign;\n  this.$$pendingDebounce = null;\n  this.$$parserValid = undefined;\n  this.$$parserName = 'parse';\n\n  this.$$currentValidationRunId = 0;\n\n  this.$$scope = $scope;\n  this.$$rootScope = $scope.$root;\n  this.$$attr = $attr;\n  this.$$element = $element;\n  this.$$animate = $animate;\n  this.$$timeout = $timeout;\n  this.$$parse = $parse;\n  this.$$q = $q;\n  this.$$exceptionHandler = $exceptionHandler;\n\n  setupValidity(this);\n  setupModelWatcher(this);\n}\n\nNgModelController.prototype = {\n  $$initGetterSetters: function() {\n    if (this.$options.getOption('getterSetter')) {\n      var invokeModelGetter = this.$$parse(this.$$attr.ngModel + '()'),\n          invokeModelSetter = this.$$parse(this.$$attr.ngModel + '($$$p)');\n\n      this.$$ngModelGet = function($scope) {\n        var modelValue = this.$$parsedNgModel($scope);\n        if (isFunction(modelValue)) {\n          modelValue = invokeModelGetter($scope);\n        }\n        return modelValue;\n      };\n      this.$$ngModelSet = function($scope, newValue) {\n        if (isFunction(this.$$parsedNgModel($scope))) {\n          invokeModelSetter($scope, {$$$p: newValue});\n        } else {\n          this.$$parsedNgModelAssign($scope, newValue);\n        }\n      };\n    } else if (!this.$$parsedNgModel.assign) {\n      throw ngModelMinErr('nonassign', 'Expression \\'{0}\\' is non-assignable. Element: {1}',\n          this.$$attr.ngModel, startingTag(this.$$element));\n    }\n  },\n\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$render\n   *\n   * @description\n   * Called when the view needs to be updated. It is expected that the user of the ng-model\n   * directive will implement this method.\n   *\n   * The `$render()` method is invoked in the following situations:\n   *\n   * * `$rollbackViewValue()` is called.  If we are rolling back the view value to the last\n   *   committed value then `$render()` is called to update the input control.\n   * * The value referenced by `ng-model` is changed programmatically and both the `$modelValue` and\n   *   the `$viewValue` are different from last time.\n   *\n   * Since `ng-model` does not do a deep watch, `$render()` is only invoked if the values of\n   * `$modelValue` and `$viewValue` are actually different from their previous values. If `$modelValue`\n   * or `$viewValue` are objects (rather than a string or number) then `$render()` will not be\n   * invoked if you only change a property on the objects.\n   */\n  $render: noop,\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$isEmpty\n   *\n   * @description\n   * This is called when we need to determine if the value of an input is empty.\n   *\n   * For instance, the required directive does this to work out if the input has data or not.\n   *\n   * The default `$isEmpty` function checks whether the value is `undefined`, `''`, `null` or `NaN`.\n   *\n   * You can override this for input directives whose concept of being empty is different from the\n   * default. The `checkboxInputType` directive does this because in its case a value of `false`\n   * implies empty.\n   *\n   * @param {*} value The value of the input to check for emptiness.\n   * @returns {boolean} True if `value` is \"empty\".\n   */\n  $isEmpty: function(value) {\n    // eslint-disable-next-line no-self-compare\n    return isUndefined(value) || value === '' || value === null || value !== value;\n  },\n\n  $$updateEmptyClasses: function(value) {\n    if (this.$isEmpty(value)) {\n      this.$$animate.removeClass(this.$$element, NOT_EMPTY_CLASS);\n      this.$$animate.addClass(this.$$element, EMPTY_CLASS);\n    } else {\n      this.$$animate.removeClass(this.$$element, EMPTY_CLASS);\n      this.$$animate.addClass(this.$$element, NOT_EMPTY_CLASS);\n    }\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setPristine\n   *\n   * @description\n   * Sets the control to its pristine state.\n   *\n   * This method can be called to remove the `ng-dirty` class and set the control to its pristine\n   * state (`ng-pristine` class). A model is considered to be pristine when the control\n   * has not been changed from when first compiled.\n   */\n  $setPristine: function() {\n    this.$dirty = false;\n    this.$pristine = true;\n    this.$$animate.removeClass(this.$$element, DIRTY_CLASS);\n    this.$$animate.addClass(this.$$element, PRISTINE_CLASS);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setDirty\n   *\n   * @description\n   * Sets the control to its dirty state.\n   *\n   * This method can be called to remove the `ng-pristine` class and set the control to its dirty\n   * state (`ng-dirty` class). A model is considered to be dirty when the control has been changed\n   * from when first compiled.\n   */\n  $setDirty: function() {\n    this.$dirty = true;\n    this.$pristine = false;\n    this.$$animate.removeClass(this.$$element, PRISTINE_CLASS);\n    this.$$animate.addClass(this.$$element, DIRTY_CLASS);\n    this.$$parentForm.$setDirty();\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setUntouched\n   *\n   * @description\n   * Sets the control to its untouched state.\n   *\n   * This method can be called to remove the `ng-touched` class and set the control to its\n   * untouched state (`ng-untouched` class). Upon compilation, a model is set as untouched\n   * by default, however this function can be used to restore that state if the model has\n   * already been touched by the user.\n   */\n  $setUntouched: function() {\n    this.$touched = false;\n    this.$untouched = true;\n    this.$$animate.setClass(this.$$element, UNTOUCHED_CLASS, TOUCHED_CLASS);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setTouched\n   *\n   * @description\n   * Sets the control to its touched state.\n   *\n   * This method can be called to remove the `ng-untouched` class and set the control to its\n   * touched state (`ng-touched` class). A model is considered to be touched when the user has\n   * first focused the control element and then shifted focus away from the control (blur event).\n   */\n  $setTouched: function() {\n    this.$touched = true;\n    this.$untouched = false;\n    this.$$animate.setClass(this.$$element, TOUCHED_CLASS, UNTOUCHED_CLASS);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$rollbackViewValue\n   *\n   * @description\n   * Cancel an update and reset the input element's value to prevent an update to the `$modelValue`,\n   * which may be caused by a pending debounced event or because the input is waiting for some\n   * future event.\n   *\n   * If you have an input that uses `ng-model-options` to set up debounced updates or updates that\n   * depend on special events such as `blur`, there can be a period when the `$viewValue` is out of\n   * sync with the ngModel's `$modelValue`.\n   *\n   * In this case, you can use `$rollbackViewValue()` to manually cancel the debounced / future update\n   * and reset the input to the last committed view value.\n   *\n   * It is also possible that you run into difficulties if you try to update the ngModel's `$modelValue`\n   * programmatically before these debounced/future events have resolved/occurred, because AngularJS's\n   * dirty checking mechanism is not able to tell whether the model has actually changed or not.\n   *\n   * The `$rollbackViewValue()` method should be called before programmatically changing the model of an\n   * input which may have such events pending. This is important in order to make sure that the\n   * input field will be updated with the new model value and any pending operations are cancelled.\n   *\n   * @example\n   * <example name=\"ng-model-cancel-update\" module=\"cancel-update-example\">\n   *   <file name=\"app.js\">\n   *     angular.module('cancel-update-example', [])\n   *\n   *     .controller('CancelUpdateController', ['$scope', function($scope) {\n   *       $scope.model = {value1: '', value2: ''};\n   *\n   *       $scope.setEmpty = function(e, value, rollback) {\n   *         if (e.keyCode === 27) {\n   *           e.preventDefault();\n   *           if (rollback) {\n   *             $scope.myForm[value].$rollbackViewValue();\n   *           }\n   *           $scope.model[value] = '';\n   *         }\n   *       };\n   *     }]);\n   *   </file>\n   *   <file name=\"index.html\">\n   *     <div ng-controller=\"CancelUpdateController\">\n   *       <p>Both of these inputs are only updated if they are blurred. Hitting escape should\n   *       empty them. Follow these steps and observe the difference:</p>\n   *       <ol>\n   *         <li>Type something in the input. You will see that the model is not yet updated</li>\n   *         <li>Press the Escape key.\n   *           <ol>\n   *             <li> In the first example, nothing happens, because the model is already '', and no\n   *             update is detected. If you blur the input, the model will be set to the current view.\n   *             </li>\n   *             <li> In the second example, the pending update is cancelled, and the input is set back\n   *             to the last committed view value (''). Blurring the input does nothing.\n   *             </li>\n   *           </ol>\n   *         </li>\n   *       </ol>\n   *\n   *       <form name=\"myForm\" ng-model-options=\"{ updateOn: 'blur' }\">\n   *         <div>\n   *           <p id=\"inputDescription1\">Without $rollbackViewValue():</p>\n   *           <input name=\"value1\" aria-describedby=\"inputDescription1\" ng-model=\"model.value1\"\n   *                  ng-keydown=\"setEmpty($event, 'value1')\">\n   *           value1: \"{{ model.value1 }}\"\n   *         </div>\n   *\n   *         <div>\n   *           <p id=\"inputDescription2\">With $rollbackViewValue():</p>\n   *           <input name=\"value2\" aria-describedby=\"inputDescription2\" ng-model=\"model.value2\"\n   *                  ng-keydown=\"setEmpty($event, 'value2', true)\">\n   *           value2: \"{{ model.value2 }}\"\n   *         </div>\n   *       </form>\n   *     </div>\n   *   </file>\n       <file name=\"style.css\">\n          div {\n            display: table-cell;\n          }\n          div:nth-child(1) {\n            padding-right: 30px;\n          }\n\n        </file>\n   * </example>\n   */\n  $rollbackViewValue: function() {\n    this.$$timeout.cancel(this.$$pendingDebounce);\n    this.$viewValue = this.$$lastCommittedViewValue;\n    this.$render();\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$validate\n   *\n   * @description\n   * Runs each of the registered validators (first synchronous validators and then\n   * asynchronous validators).\n   * If the validity changes to invalid, the model will be set to `undefined`,\n   * unless {@link ngModelOptions `ngModelOptions.allowInvalid`} is `true`.\n   * If the validity changes to valid, it will set the model to the last available valid\n   * `$modelValue`, i.e. either the last parsed value or the last value set from the scope.\n   */\n  $validate: function() {\n\n    // ignore $validate before model is initialized\n    if (isNumberNaN(this.$modelValue)) {\n      return;\n    }\n\n    var viewValue = this.$$lastCommittedViewValue;\n    // Note: we use the $$rawModelValue as $modelValue might have been\n    // set to undefined during a view -> model update that found validation\n    // errors. We can't parse the view here, since that could change\n    // the model although neither viewValue nor the model on the scope changed\n    var modelValue = this.$$rawModelValue;\n\n    var prevValid = this.$valid;\n    var prevModelValue = this.$modelValue;\n\n    var allowInvalid = this.$options.getOption('allowInvalid');\n\n    var that = this;\n    this.$$runValidators(modelValue, viewValue, function(allValid) {\n      // If there was no change in validity, don't update the model\n      // This prevents changing an invalid modelValue to undefined\n      if (!allowInvalid && prevValid !== allValid) {\n        // Note: Don't check this.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        that.$modelValue = allValid ? modelValue : undefined;\n\n        if (that.$modelValue !== prevModelValue) {\n          that.$$writeModelToScope();\n        }\n      }\n    });\n  },\n\n  $$runValidators: function(modelValue, viewValue, doneCallback) {\n    this.$$currentValidationRunId++;\n    var localValidationRunId = this.$$currentValidationRunId;\n    var that = this;\n\n    // check parser error\n    if (!processParseErrors()) {\n      validationDone(false);\n      return;\n    }\n    if (!processSyncValidators()) {\n      validationDone(false);\n      return;\n    }\n    processAsyncValidators();\n\n    function processParseErrors() {\n      var errorKey = that.$$parserName;\n\n      if (isUndefined(that.$$parserValid)) {\n        setValidity(errorKey, null);\n      } else {\n        if (!that.$$parserValid) {\n          forEach(that.$validators, function(v, name) {\n            setValidity(name, null);\n          });\n          forEach(that.$asyncValidators, function(v, name) {\n            setValidity(name, null);\n          });\n        }\n\n        // Set the parse error last, to prevent unsetting it, should a $validators key == parserName\n        setValidity(errorKey, that.$$parserValid);\n        return that.$$parserValid;\n      }\n      return true;\n    }\n\n    function processSyncValidators() {\n      var syncValidatorsValid = true;\n      forEach(that.$validators, function(validator, name) {\n        var result = Boolean(validator(modelValue, viewValue));\n        syncValidatorsValid = syncValidatorsValid && result;\n        setValidity(name, result);\n      });\n      if (!syncValidatorsValid) {\n        forEach(that.$asyncValidators, function(v, name) {\n          setValidity(name, null);\n        });\n        return false;\n      }\n      return true;\n    }\n\n    function processAsyncValidators() {\n      var validatorPromises = [];\n      var allValid = true;\n      forEach(that.$asyncValidators, function(validator, name) {\n        var promise = validator(modelValue, viewValue);\n        if (!isPromiseLike(promise)) {\n          throw ngModelMinErr('nopromise',\n            'Expected asynchronous validator to return a promise but got \\'{0}\\' instead.', promise);\n        }\n        setValidity(name, undefined);\n        validatorPromises.push(promise.then(function() {\n          setValidity(name, true);\n        }, function() {\n          allValid = false;\n          setValidity(name, false);\n        }));\n      });\n      if (!validatorPromises.length) {\n        validationDone(true);\n      } else {\n        that.$$q.all(validatorPromises).then(function() {\n          validationDone(allValid);\n        }, noop);\n      }\n    }\n\n    function setValidity(name, isValid) {\n      if (localValidationRunId === that.$$currentValidationRunId) {\n        that.$setValidity(name, isValid);\n      }\n    }\n\n    function validationDone(allValid) {\n      if (localValidationRunId === that.$$currentValidationRunId) {\n\n        doneCallback(allValid);\n      }\n    }\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$commitViewValue\n   *\n   * @description\n   * Commit a pending update to the `$modelValue`.\n   *\n   * Updates may be pending by a debounced event or because the input is waiting for a some future\n   * event defined in `ng-model-options`. this method is rarely needed as `NgModelController`\n   * usually handles calling this in response to input events.\n   */\n  $commitViewValue: function() {\n    var viewValue = this.$viewValue;\n\n    this.$$timeout.cancel(this.$$pendingDebounce);\n\n    // If the view value has not changed then we should just exit, except in the case where there is\n    // a native validator on the element. In this case the validation state may have changed even though\n    // the viewValue has stayed empty.\n    if (this.$$lastCommittedViewValue === viewValue && (viewValue !== '' || !this.$$hasNativeValidators)) {\n      return;\n    }\n    this.$$updateEmptyClasses(viewValue);\n    this.$$lastCommittedViewValue = viewValue;\n\n    // change to dirty\n    if (this.$pristine) {\n      this.$setDirty();\n    }\n    this.$$parseAndValidate();\n  },\n\n  $$parseAndValidate: function() {\n    var viewValue = this.$$lastCommittedViewValue;\n    var modelValue = viewValue;\n    var that = this;\n\n    this.$$parserValid = isUndefined(modelValue) ? undefined : true;\n\n    // Reset any previous parse error\n    this.$setValidity(this.$$parserName, null);\n    this.$$parserName = 'parse';\n\n    if (this.$$parserValid) {\n      for (var i = 0; i < this.$parsers.length; i++) {\n        modelValue = this.$parsers[i](modelValue);\n        if (isUndefined(modelValue)) {\n          this.$$parserValid = false;\n          break;\n        }\n      }\n    }\n    if (isNumberNaN(this.$modelValue)) {\n      // this.$modelValue has not been touched yet...\n      this.$modelValue = this.$$ngModelGet(this.$$scope);\n    }\n    var prevModelValue = this.$modelValue;\n    var allowInvalid = this.$options.getOption('allowInvalid');\n    this.$$rawModelValue = modelValue;\n\n    if (allowInvalid) {\n      this.$modelValue = modelValue;\n      writeToModelIfNeeded();\n    }\n\n    // Pass the $$lastCommittedViewValue here, because the cached viewValue might be out of date.\n    // This can happen if e.g. $setViewValue is called from inside a parser\n    this.$$runValidators(modelValue, this.$$lastCommittedViewValue, function(allValid) {\n      if (!allowInvalid) {\n        // Note: Don't check this.$valid here, as we could have\n        // external validators (e.g. calculated on the server),\n        // that just call $setValidity and need the model value\n        // to calculate their validity.\n        that.$modelValue = allValid ? modelValue : undefined;\n        writeToModelIfNeeded();\n      }\n    });\n\n    function writeToModelIfNeeded() {\n      if (that.$modelValue !== prevModelValue) {\n        that.$$writeModelToScope();\n      }\n    }\n  },\n\n  $$writeModelToScope: function() {\n    this.$$ngModelSet(this.$$scope, this.$modelValue);\n    forEach(this.$viewChangeListeners, function(listener) {\n      try {\n        listener();\n      } catch (e) {\n        // eslint-disable-next-line no-invalid-this\n        this.$$exceptionHandler(e);\n      }\n    }, this);\n  },\n\n  /**\n   * @ngdoc method\n   * @name ngModel.NgModelController#$setViewValue\n   *\n   * @description\n   * Update the view value.\n   *\n   * This method should be called when a control wants to change the view value; typically,\n   * this is done from within a DOM event handler. For example, the {@link ng.directive:input input}\n   * directive calls it when the value of the input changes and {@link ng.directive:select select}\n   * calls it when an option is selected.\n   *\n   * When `$setViewValue` is called, the new `value` will be staged for committing through the `$parsers`\n   * and `$validators` pipelines. If there are no special {@link ngModelOptions} specified then the staged\n   * value is sent directly for processing through the `$parsers` pipeline. After this, the `$validators` and\n   * `$asyncValidators` are called and the value is applied to `$modelValue`.\n   * Finally, the value is set to the **expression** specified in the `ng-model` attribute and\n   * all the registered change listeners, in the `$viewChangeListeners` list are called.\n   *\n   * In case the {@link ng.directive:ngModelOptions ngModelOptions} directive is used with `updateOn`\n   * and the `default` trigger is not listed, all those actions will remain pending until one of the\n   * `updateOn` events is triggered on the DOM element.\n   * All these actions will be debounced if the {@link ng.directive:ngModelOptions ngModelOptions}\n   * directive is used with a custom debounce for this particular event.\n   * Note that a `$digest` is only triggered once the `updateOn` events are fired, or if `debounce`\n   * is specified, once the timer runs out.\n   *\n   * When used with standard inputs, the view value will always be a string (which is in some cases\n   * parsed into another type, such as a `Date` object for `input[date]`.)\n   * However, custom controls might also pass objects to this method. In this case, we should make\n   * a copy of the object before passing it to `$setViewValue`. This is because `ngModel` does not\n   * perform a deep watch of objects, it only looks for a change of identity. If you only change\n   * the property of the object then ngModel will not realize that the object has changed and\n   * will not invoke the `$parsers` and `$validators` pipelines. For this reason, you should\n   * not change properties of the copy once it has been passed to `$setViewValue`.\n   * Otherwise you may cause the model value on the scope to change incorrectly.\n   *\n   * <div class=\"alert alert-info\">\n   * In any case, the value passed to the method should always reflect the current value\n   * of the control. For example, if you are calling `$setViewValue` for an input element,\n   * you should pass the input DOM value. Otherwise, the control and the scope model become\n   * out of sync. It's also important to note that `$setViewValue` does not call `$render` or change\n   * the control's DOM value in any way. If we want to change the control's DOM value\n   * programmatically, we should update the `ngModel` scope expression. Its new value will be\n   * picked up by the model controller, which will run it through the `$formatters`, `$render` it\n   * to update the DOM, and finally call `$validate` on it.\n   * </div>\n   *\n   * @param {*} value value from the view.\n   * @param {string} trigger Event that triggered the update.\n   */\n  $setViewValue: function(value, trigger) {\n    this.$viewValue = value;\n    if (this.$options.getOption('updateOnDefault')) {\n      this.$$debounceViewValueCommit(trigger);\n    }\n  },\n\n  $$debounceViewValueCommit: function(trigger) {\n    var debounceDelay = this.$options.getOption('debounce');\n\n    if (isNumber(debounceDelay[trigger])) {\n      debounceDelay = debounceDelay[trigger];\n    } else if (isNumber(debounceDelay['default']) &&\n      this.$options.getOption('updateOn').indexOf(trigger) === -1\n    ) {\n      debounceDelay = debounceDelay['default'];\n    } else if (isNumber(debounceDelay['*'])) {\n      debounceDelay = debounceDelay['*'];\n    }\n\n    this.$$timeout.cancel(this.$$pendingDebounce);\n    var that = this;\n    if (debounceDelay > 0) { // this fails if debounceDelay is an object\n      this.$$pendingDebounce = this.$$timeout(function() {\n        that.$commitViewValue();\n      }, debounceDelay);\n    } else if (this.$$rootScope.$$phase) {\n      this.$commitViewValue();\n    } else {\n      this.$$scope.$apply(function() {\n        that.$commitViewValue();\n      });\n    }\n  },\n\n  /**\n   * @ngdoc method\n   *\n   * @name ngModel.NgModelController#$overrideModelOptions\n   *\n   * @description\n   *\n   * Override the current model options settings programmatically.\n   *\n   * The previous `ModelOptions` value will not be modified. Instead, a\n   * new `ModelOptions` object will inherit from the previous one overriding\n   * or inheriting settings that are defined in the given parameter.\n   *\n   * See {@link ngModelOptions} for information about what options can be specified\n   * and how model option inheritance works.\n   *\n   * <div class=\"alert alert-warning\">\n   * **Note:** this function only affects the options set on the `ngModelController`,\n   * and not the options on the {@link ngModelOptions} directive from which they might have been\n   * obtained initially.\n   * </div>\n   *\n   * <div class=\"alert alert-danger\">\n   * **Note:** it is not possible to override the `getterSetter` option.\n   * </div>\n   *\n   * @param {Object} options a hash of settings to override the previous options\n   *\n   */\n  $overrideModelOptions: function(options) {\n    this.$options = this.$options.createChild(options);\n    this.$$setUpdateOnEvents();\n  },\n\n  /**\n   * @ngdoc method\n   *\n   * @name  ngModel.NgModelController#$processModelValue\n\n   * @description\n   *\n   * Runs the model -> view pipeline on the current\n   * {@link ngModel.NgModelController#$modelValue $modelValue}.\n   *\n   * The following actions are performed by this method:\n   *\n   * - the `$modelValue` is run through the {@link ngModel.NgModelController#$formatters $formatters}\n   * and the result is set to the {@link ngModel.NgModelController#$viewValue $viewValue}\n   * - the `ng-empty` or `ng-not-empty` class is set on the element\n   * - if the `$viewValue` has changed:\n   *   - {@link ngModel.NgModelController#$render $render} is called on the control\n   *   - the {@link ngModel.NgModelController#$validators $validators} are run and\n   *   the validation status is set.\n   *\n   * This method is called by ngModel internally when the bound scope value changes.\n   * Application developers usually do not have to call this function themselves.\n   *\n   * This function can be used when the `$viewValue` or the rendered DOM value are not correctly\n   * formatted and the `$modelValue` must be run through the `$formatters` again.\n   *\n   * @example\n   * Consider a text input with an autocomplete list (for fruit), where the items are\n   * objects with a name and an id.\n   * A user enters `ap` and then selects `Apricot` from the list.\n   * Based on this, the autocomplete widget will call `$setViewValue({name: 'Apricot', id: 443})`,\n   * but the rendered value will still be `ap`.\n   * The widget can then call `ctrl.$processModelValue()` to run the model -> view\n   * pipeline again, which formats the object to the string `Apricot`,\n   * then updates the `$viewValue`, and finally renders it in the DOM.\n   *\n   * <example module=\"inputExample\" name=\"ng-model-process\">\n     <file name=\"index.html\">\n      <div ng-controller=\"inputController\" style=\"display: flex;\">\n        <div style=\"margin-right: 30px;\">\n          Search Fruit:\n          <basic-autocomplete items=\"items\" on-select=\"selectedFruit = item\"></basic-autocomplete>\n        </div>\n        <div>\n          Model:<br>\n          <pre>{{selectedFruit | json}}</pre>\n        </div>\n      </div>\n     </file>\n     <file name=\"app.js\">\n      angular.module('inputExample', [])\n        .controller('inputController', function($scope) {\n          $scope.items = [\n            {name: 'Apricot', id: 443},\n            {name: 'Clementine', id: 972},\n            {name: 'Durian', id: 169},\n            {name: 'Jackfruit', id: 982},\n            {name: 'Strawberry', id: 863}\n          ];\n        })\n        .component('basicAutocomplete', {\n          bindings: {\n            items: '<',\n            onSelect: '&'\n          },\n          templateUrl: 'autocomplete.html',\n          controller: function($element, $scope) {\n            var that = this;\n            var ngModel;\n\n            that.$postLink = function() {\n              ngModel = $element.find('input').controller('ngModel');\n\n              ngModel.$formatters.push(function(value) {\n                return (value && value.name) || value;\n              });\n\n              ngModel.$parsers.push(function(value) {\n                var match = value;\n                for (var i = 0; i < that.items.length; i++) {\n                  if (that.items[i].name === value) {\n                    match = that.items[i];\n                    break;\n                  }\n                }\n\n                return match;\n              });\n            };\n\n            that.selectItem = function(item) {\n              ngModel.$setViewValue(item);\n              ngModel.$processModelValue();\n              that.onSelect({item: item});\n            };\n          }\n        });\n     </file>\n     <file name=\"autocomplete.html\">\n       <div>\n         <input type=\"search\" ng-model=\"$ctrl.searchTerm\" />\n         <ul>\n           <li ng-repeat=\"item in $ctrl.items | filter:$ctrl.searchTerm\">\n             <button ng-click=\"$ctrl.selectItem(item)\">{{ item.name }}</button>\n           </li>\n         </ul>\n       </div>\n     </file>\n   * </example>\n   *\n   */\n  $processModelValue: function() {\n    var viewValue = this.$$format();\n\n    if (this.$viewValue !== viewValue) {\n      this.$$updateEmptyClasses(viewValue);\n      this.$viewValue = this.$$lastCommittedViewValue = viewValue;\n      this.$render();\n      // It is possible that model and view value have been updated during render\n      this.$$runValidators(this.$modelValue, this.$viewValue, noop);\n    }\n  },\n\n  /**\n   * This method is called internally to run the $formatters on the $modelValue\n   */\n  $$format: function() {\n    var formatters = this.$formatters,\n        idx = formatters.length;\n\n    var viewValue = this.$modelValue;\n    while (idx--) {\n      viewValue = formatters[idx](viewValue);\n    }\n\n    return viewValue;\n  },\n\n  /**\n   * This method is called internally when the bound scope value changes.\n   */\n  $$setModelValue: function(modelValue) {\n    this.$modelValue = this.$$rawModelValue = modelValue;\n    this.$$parserValid = undefined;\n    this.$processModelValue();\n  },\n\n  $$setUpdateOnEvents: function() {\n    if (this.$$updateEvents) {\n      this.$$element.off(this.$$updateEvents, this.$$updateEventHandler);\n    }\n\n    this.$$updateEvents = this.$options.getOption('updateOn');\n    if (this.$$updateEvents) {\n      this.$$element.on(this.$$updateEvents, this.$$updateEventHandler);\n    }\n  },\n\n  $$updateEventHandler: function(ev) {\n    this.$$debounceViewValueCommit(ev && ev.type);\n  }\n};\n\nfunction setupModelWatcher(ctrl) {\n  // model -> value\n  // Note: we cannot use a normal scope.$watch as we want to detect the following:\n  // 1. scope value is 'a'\n  // 2. user enters 'b'\n  // 3. ng-change kicks in and reverts scope value to 'a'\n  //    -> scope value did not change since the last digest as\n  //       ng-change executes in apply phase\n  // 4. view should be changed back to 'a'\n  ctrl.$$scope.$watch(function ngModelWatch(scope) {\n    var modelValue = ctrl.$$ngModelGet(scope);\n\n    // if scope model value and ngModel value are out of sync\n    // This cannot be moved to the action function, because it would not catch the\n    // case where the model is changed in the ngChange function or the model setter\n    if (modelValue !== ctrl.$modelValue &&\n      // checks for NaN is needed to allow setting the model to NaN when there's an asyncValidator\n      // eslint-disable-next-line no-self-compare\n      (ctrl.$modelValue === ctrl.$modelValue || modelValue === modelValue)\n    ) {\n      ctrl.$$setModelValue(modelValue);\n    }\n\n    return modelValue;\n  });\n}\n\n/**\n * @ngdoc method\n * @name ngModel.NgModelController#$setValidity\n *\n * @description\n * Change the validity state, and notify the form.\n *\n * This method can be called within $parsers/$formatters or a custom validation implementation.\n * However, in most cases it should be sufficient to use the `ngModel.$validators` and\n * `ngModel.$asyncValidators` collections which will call `$setValidity` automatically.\n *\n * @param {string} validationErrorKey Name of the validator. The `validationErrorKey` will be assigned\n *        to either `$error[validationErrorKey]` or `$pending[validationErrorKey]`\n *        (for unfulfilled `$asyncValidators`), so that it is available for data-binding.\n *        The `validationErrorKey` should be in camelCase and will get converted into dash-case\n *        for class name. Example: `myError` will result in `ng-valid-my-error` and `ng-invalid-my-error`\n *        classes and can be bound to as `{{ someForm.someControl.$error.myError }}`.\n * @param {boolean} isValid Whether the current state is valid (true), invalid (false), pending (undefined),\n *                          or skipped (null). Pending is used for unfulfilled `$asyncValidators`.\n *                          Skipped is used by AngularJS when validators do not run because of parse errors and\n *                          when `$asyncValidators` do not run because any of the `$validators` failed.\n */\naddSetValidityMethod({\n  clazz: NgModelController,\n  set: function(object, property) {\n    object[property] = true;\n  },\n  unset: function(object, property) {\n    delete object[property];\n  }\n});\n\n\n/**\n * @ngdoc directive\n * @name ngModel\n * @restrict A\n * @priority 1\n * @param {expression} ngModel assignable {@link guide/expression Expression} to bind to.\n *\n * @description\n * The `ngModel` directive binds an `input`,`select`, `textarea` (or custom form control) to a\n * property on the scope using {@link ngModel.NgModelController NgModelController},\n * which is created and exposed by this directive.\n *\n * `ngModel` is responsible for:\n *\n * - Binding the view into the model, which other directives such as `input`, `textarea` or `select`\n *   require.\n * - Providing validation behavior (i.e. required, number, email, url).\n * - Keeping the state of the control (valid/invalid, dirty/pristine, touched/untouched, validation errors).\n * - Setting related css classes on the element (`ng-valid`, `ng-invalid`, `ng-dirty`, `ng-pristine`, `ng-touched`,\n *   `ng-untouched`, `ng-empty`, `ng-not-empty`) including animations.\n * - Registering the control with its parent {@link ng.directive:form form}.\n *\n * Note: `ngModel` will try to bind to the property given by evaluating the expression on the\n * current scope. If the property doesn't already exist on this scope, it will be created\n * implicitly and added to the scope.\n *\n * For best practices on using `ngModel`, see:\n *\n *  - [Understanding Scopes](https://github.com/angular/angular.js/wiki/Understanding-Scopes)\n *\n * For basic examples, how to use `ngModel`, see:\n *\n *  - {@link ng.directive:input input}\n *    - {@link input[text] text}\n *    - {@link input[checkbox] checkbox}\n *    - {@link input[radio] radio}\n *    - {@link input[number] number}\n *    - {@link input[email] email}\n *    - {@link input[url] url}\n *    - {@link input[date] date}\n *    - {@link input[datetime-local] datetime-local}\n *    - {@link input[time] time}\n *    - {@link input[month] month}\n *    - {@link input[week] week}\n *  - {@link ng.directive:select select}\n *  - {@link ng.directive:textarea textarea}\n *\n * ## Complex Models (objects or collections)\n *\n * By default, `ngModel` watches the model by reference, not value. This is important to know when\n * binding inputs to models that are objects (e.g. `Date`) or collections (e.g. arrays). If only properties of the\n * object or collection change, `ngModel` will not be notified and so the input will not be  re-rendered.\n *\n * The model must be assigned an entirely new object or collection before a re-rendering will occur.\n *\n * Some directives have options that will cause them to use a custom `$watchCollection` on the model expression\n * - for example, `ngOptions` will do so when a `track by` clause is included in the comprehension expression or\n * if the select is given the `multiple` attribute.\n *\n * The `$watchCollection()` method only does a shallow comparison, meaning that changing properties deeper than the\n * first level of the object (or only changing the properties of an item in the collection if it's an array) will still\n * not trigger a re-rendering of the model.\n *\n * ## CSS classes\n * The following CSS classes are added and removed on the associated input/select/textarea element\n * depending on the validity of the model.\n *\n *  - `ng-valid`: the model is valid\n *  - `ng-invalid`: the model is invalid\n *  - `ng-valid-[key]`: for each valid key added by `$setValidity`\n *  - `ng-invalid-[key]`: for each invalid key added by `$setValidity`\n *  - `ng-pristine`: the control hasn't been interacted with yet\n *  - `ng-dirty`: the control has been interacted with\n *  - `ng-touched`: the control has been blurred\n *  - `ng-untouched`: the control hasn't been blurred\n *  - `ng-pending`: any `$asyncValidators` are unfulfilled\n *  - `ng-empty`: the view does not contain a value or the value is deemed \"empty\", as defined\n *     by the {@link ngModel.NgModelController#$isEmpty} method\n *  - `ng-not-empty`: the view contains a non-empty value\n *\n * Keep in mind that ngAnimate can detect each of these classes when added and removed.\n *\n * @animations\n * Animations within models are triggered when any of the associated CSS classes are added and removed\n * on the input element which is attached to the model. These classes include: `.ng-pristine`, `.ng-dirty`,\n * `.ng-invalid` and `.ng-valid` as well as any other validations that are performed on the model itself.\n * The animations that are triggered within ngModel are similar to how they work in ngClass and\n * animations can be hooked into using CSS transitions, keyframes as well as JS animations.\n *\n * The following example shows a simple way to utilize CSS transitions to style an input element\n * that has been rendered as invalid after it has been validated:\n *\n * <pre>\n * //be sure to include ngAnimate as a module to hook into more\n * //advanced animations\n * .my-input {\n *   transition:0.5s linear all;\n *   background: white;\n * }\n * .my-input.ng-invalid {\n *   background: red;\n *   color:white;\n * }\n * </pre>\n *\n * @example\n * ### Basic Usage\n * <example deps=\"angular-animate.js\" animations=\"true\" fixBase=\"true\" module=\"inputExample\" name=\"ng-model\">\n     <file name=\"index.html\">\n       <script>\n        angular.module('inputExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.val = '1';\n          }]);\n       </script>\n       <style>\n         .my-input {\n           transition:all linear 0.5s;\n           background: transparent;\n         }\n         .my-input.ng-invalid {\n           color:white;\n           background: red;\n         }\n       </style>\n       <p id=\"inputDescription\">\n        Update input to see transitions when valid/invalid.\n        Integer is a valid value.\n       </p>\n       <form name=\"testForm\" ng-controller=\"ExampleController\">\n         <input ng-model=\"val\" ng-pattern=\"/^\\d+$/\" name=\"anim\" class=\"my-input\"\n                aria-describedby=\"inputDescription\" />\n       </form>\n     </file>\n * </example>\n *\n * @example\n * ### Binding to a getter/setter\n *\n * Sometimes it's helpful to bind `ngModel` to a getter/setter function.  A getter/setter is a\n * function that returns a representation of the model when called with zero arguments, and sets\n * the internal state of a model when called with an argument. It's sometimes useful to use this\n * for models that have an internal representation that's different from what the model exposes\n * to the view.\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** It's best to keep getters fast because AngularJS is likely to call them more\n * frequently than other parts of your code.\n * </div>\n *\n * You use this behavior by adding `ng-model-options=\"{ getterSetter: true }\"` to an element that\n * has `ng-model` attached to it. You can also add `ng-model-options=\"{ getterSetter: true }\"` to\n * a `<form>`, which will enable this behavior for all `<input>`s within it. See\n * {@link ng.directive:ngModelOptions `ngModelOptions`} for more.\n *\n * The following example shows how to use `ngModel` with a getter/setter:\n *\n * @example\n * <example name=\"ngModel-getter-setter\" module=\"getterSetterExample\">\n     <file name=\"index.html\">\n       <div ng-controller=\"ExampleController\">\n         <form name=\"userForm\">\n           <label>Name:\n             <input type=\"text\" name=\"userName\"\n                    ng-model=\"user.name\"\n                    ng-model-options=\"{ getterSetter: true }\" />\n           </label>\n         </form>\n         <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n       </div>\n     </file>\n     <file name=\"app.js\">\n       angular.module('getterSetterExample', [])\n         .controller('ExampleController', ['$scope', function($scope) {\n           var _name = 'Brian';\n           $scope.user = {\n             name: function(newName) {\n              // Note that newName can be undefined for two reasons:\n              // 1. Because it is called as a getter and thus called with no arguments\n              // 2. Because the property should actually be set to undefined. This happens e.g. if the\n              //    input is invalid\n              return arguments.length ? (_name = newName) : _name;\n             }\n           };\n         }]);\n     </file>\n * </example>\n */\nvar ngModelDirective = ['$rootScope', function($rootScope) {\n  return {\n    restrict: 'A',\n    require: ['ngModel', '^?form', '^?ngModelOptions'],\n    controller: NgModelController,\n    // Prelink needs to run before any input directive\n    // so that we can set the NgModelOptions in NgModelController\n    // before anyone else uses it.\n    priority: 1,\n    compile: function ngModelCompile(element) {\n      // Setup initial state of the control\n      element.addClass(PRISTINE_CLASS).addClass(UNTOUCHED_CLASS).addClass(VALID_CLASS);\n\n      return {\n        pre: function ngModelPreLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0],\n              formCtrl = ctrls[1] || modelCtrl.$$parentForm,\n              optionsCtrl = ctrls[2];\n\n          if (optionsCtrl) {\n            modelCtrl.$options = optionsCtrl.$options;\n          }\n\n          modelCtrl.$$initGetterSetters();\n\n          // notify others, especially parent forms\n          formCtrl.$addControl(modelCtrl);\n\n          attr.$observe('name', function(newValue) {\n            if (modelCtrl.$name !== newValue) {\n              modelCtrl.$$parentForm.$$renameControl(modelCtrl, newValue);\n            }\n          });\n\n          scope.$on('$destroy', function() {\n            modelCtrl.$$parentForm.$removeControl(modelCtrl);\n          });\n        },\n        post: function ngModelPostLink(scope, element, attr, ctrls) {\n          var modelCtrl = ctrls[0];\n          modelCtrl.$$setUpdateOnEvents();\n\n          function setTouched() {\n            modelCtrl.$setTouched();\n          }\n\n          element.on('blur', function() {\n            if (modelCtrl.$touched) return;\n\n            if ($rootScope.$$phase) {\n              scope.$evalAsync(setTouched);\n            } else {\n              scope.$apply(setTouched);\n            }\n          });\n        }\n      };\n    }\n  };\n}];\n\n/* exported defaultModelOptions */\nvar defaultModelOptions;\nvar DEFAULT_REGEXP = /(\\s+|^)default(\\s+|$)/;\n\n/**\n * @ngdoc type\n * @name ModelOptions\n * @description\n * A container for the options set by the {@link ngModelOptions} directive\n */\nfunction ModelOptions(options) {\n  this.$$options = options;\n}\n\nModelOptions.prototype = {\n\n  /**\n   * @ngdoc method\n   * @name ModelOptions#getOption\n   * @param {string} name the name of the option to retrieve\n   * @returns {*} the value of the option\n   * @description\n   * Returns the value of the given option\n   */\n  getOption: function(name) {\n    return this.$$options[name];\n  },\n\n  /**\n   * @ngdoc method\n   * @name ModelOptions#createChild\n   * @param {Object} options a hash of options for the new child that will override the parent's options\n   * @return {ModelOptions} a new `ModelOptions` object initialized with the given options.\n   */\n  createChild: function(options) {\n    var inheritAll = false;\n\n    // make a shallow copy\n    options = extend({}, options);\n\n    // Inherit options from the parent if specified by the value `\"$inherit\"`\n    forEach(options, /** @this */ function(option, key) {\n      if (option === '$inherit') {\n        if (key === '*') {\n          inheritAll = true;\n        } else {\n          options[key] = this.$$options[key];\n          // `updateOn` is special so we must also inherit the `updateOnDefault` option\n          if (key === 'updateOn') {\n            options.updateOnDefault = this.$$options.updateOnDefault;\n          }\n        }\n      } else {\n        if (key === 'updateOn') {\n          // If the `updateOn` property contains the `default` event then we have to remove\n          // it from the event list and set the `updateOnDefault` flag.\n          options.updateOnDefault = false;\n          options[key] = trim(option.replace(DEFAULT_REGEXP, function() {\n            options.updateOnDefault = true;\n            return ' ';\n          }));\n        }\n      }\n    }, this);\n\n    if (inheritAll) {\n      // We have a property of the form: `\"*\": \"$inherit\"`\n      delete options['*'];\n      defaults(options, this.$$options);\n    }\n\n    // Finally add in any missing defaults\n    defaults(options, defaultModelOptions.$$options);\n\n    return new ModelOptions(options);\n  }\n};\n\n\ndefaultModelOptions = new ModelOptions({\n  updateOn: '',\n  updateOnDefault: true,\n  debounce: 0,\n  getterSetter: false,\n  allowInvalid: false,\n  timezone: null\n});\n\n\n/**\n * @ngdoc directive\n * @name ngModelOptions\n * @restrict A\n * @priority 10\n *\n * @description\n * This directive allows you to modify the behaviour of {@link ngModel} directives within your\n * application. You can specify an `ngModelOptions` directive on any element. All {@link ngModel}\n * directives will use the options of their nearest `ngModelOptions` ancestor.\n *\n * The `ngModelOptions` settings are found by evaluating the value of the attribute directive as\n * an AngularJS expression. This expression should evaluate to an object, whose properties contain\n * the settings. For example: `<div ng-model-options=\"{ debounce: 100 }\"`.\n *\n * ## Inheriting Options\n *\n * You can specify that an `ngModelOptions` setting should be inherited from a parent `ngModelOptions`\n * directive by giving it the value of `\"$inherit\"`.\n * Then it will inherit that setting from the first `ngModelOptions` directive found by traversing up the\n * DOM tree. If there is no ancestor element containing an `ngModelOptions` directive then default settings\n * will be used.\n *\n * For example given the following fragment of HTML\n *\n *\n * ```html\n * <div ng-model-options=\"{ allowInvalid: true, debounce: 200 }\">\n *   <form ng-model-options=\"{ updateOn: 'blur', allowInvalid: '$inherit' }\">\n *     <input ng-model-options=\"{ updateOn: 'default', allowInvalid: '$inherit' }\" />\n *   </form>\n * </div>\n * ```\n *\n * the `input` element will have the following settings\n *\n * ```js\n * { allowInvalid: true, updateOn: 'default', debounce: 0 }\n * ```\n *\n * Notice that the `debounce` setting was not inherited and used the default value instead.\n *\n * You can specify that all undefined settings are automatically inherited from an ancestor by\n * including a property with key of `\"*\"` and value of `\"$inherit\"`.\n *\n * For example given the following fragment of HTML\n *\n *\n * ```html\n * <div ng-model-options=\"{ allowInvalid: true, debounce: 200 }\">\n *   <form ng-model-options=\"{ updateOn: 'blur', \"*\": '$inherit' }\">\n *     <input ng-model-options=\"{ updateOn: 'default', \"*\": '$inherit' }\" />\n *   </form>\n * </div>\n * ```\n *\n * the `input` element will have the following settings\n *\n * ```js\n * { allowInvalid: true, updateOn: 'default', debounce: 200 }\n * ```\n *\n * Notice that the `debounce` setting now inherits the value from the outer `<div>` element.\n *\n * If you are creating a reusable component then you should be careful when using `\"*\": \"$inherit\"`\n * since you may inadvertently inherit a setting in the future that changes the behavior of your component.\n *\n *\n * ## Triggering and debouncing model updates\n *\n * The `updateOn` and `debounce` properties allow you to specify a custom list of events that will\n * trigger a model update and/or a debouncing delay so that the actual update only takes place when\n * a timer expires; this timer will be reset after another change takes place.\n *\n * Given the nature of `ngModelOptions`, the value displayed inside input fields in the view might\n * be different from the value in the actual model. This means that if you update the model you\n * should also invoke {@link ngModel.NgModelController#$rollbackViewValue} on the relevant input field in\n * order to make sure it is synchronized with the model and that any debounced action is canceled.\n *\n * The easiest way to reference the control's {@link ngModel.NgModelController#$rollbackViewValue}\n * method is by making sure the input is placed inside a form that has a `name` attribute. This is\n * important because `form` controllers are published to the related scope under the name in their\n * `name` attribute.\n *\n * Any pending changes will take place immediately when an enclosing form is submitted via the\n * `submit` event. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`\n * to have access to the updated model.\n *\n * ### Overriding immediate updates\n *\n * The following example shows how to override immediate updates. Changes on the inputs within the\n * form will update the model only when the control loses focus (blur event). If `escape` key is\n * pressed while the input field is focused, the value is reset to the value in the current model.\n *\n * <example name=\"ngModelOptions-directive-blur\" module=\"optionsExample\">\n *   <file name=\"index.html\">\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"userForm\">\n *         <label>\n *           Name:\n *           <input type=\"text\" name=\"userName\"\n *                  ng-model=\"user.name\"\n *                  ng-model-options=\"{ updateOn: 'blur' }\"\n *                  ng-keyup=\"cancel($event)\" />\n *         </label><br />\n *         <label>\n *           Other data:\n *           <input type=\"text\" ng-model=\"user.data\" />\n *         </label><br />\n *       </form>\n *       <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('optionsExample', [])\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         $scope.user = { name: 'say', data: '' };\n *\n *         $scope.cancel = function(e) {\n *           if (e.keyCode === 27) {\n *             $scope.userForm.userName.$rollbackViewValue();\n *           }\n *         };\n *       }]);\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     var model = element(by.binding('user.name'));\n *     var input = element(by.model('user.name'));\n *     var other = element(by.model('user.data'));\n *\n *     it('should allow custom events', function() {\n *       input.sendKeys(' hello');\n *       input.click();\n *       expect(model.getText()).toEqual('say');\n *       other.click();\n *       expect(model.getText()).toEqual('say hello');\n *     });\n *\n *     it('should $rollbackViewValue when model changes', function() {\n *       input.sendKeys(' hello');\n *       expect(input.getAttribute('value')).toEqual('say hello');\n *       input.sendKeys(protractor.Key.ESCAPE);\n *       expect(input.getAttribute('value')).toEqual('say');\n *       other.click();\n *       expect(model.getText()).toEqual('say');\n *     });\n *   </file>\n * </example>\n *\n * ### Debouncing updates\n *\n * The next example shows how to debounce model changes. Model will be updated only 1 sec after last change.\n * If the `Clear` button is pressed, any debounced action is canceled and the value becomes empty.\n *\n * <example name=\"ngModelOptions-directive-debounce\" module=\"optionsExample\">\n *   <file name=\"index.html\">\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"userForm\">\n *         Name:\n *         <input type=\"text\" name=\"userName\"\n *                ng-model=\"user.name\"\n *                ng-model-options=\"{ debounce: 1000 }\" />\n *         <button ng-click=\"userForm.userName.$rollbackViewValue(); user.name=''\">Clear</button><br />\n *       </form>\n *       <pre>user.name = <span ng-bind=\"user.name\"></span></pre>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('optionsExample', [])\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         $scope.user = { name: 'say' };\n *       }]);\n *   </file>\n * </example>\n *\n * ### Default events, extra triggers, and catch-all debounce values\n *\n * This example shows the relationship between \"default\" update events and\n * additional `updateOn` triggers.\n *\n * `default` events are those that are bound to the control, and when fired, update the `$viewValue`\n * via {@link ngModel.NgModelController#$setViewValue $setViewValue}. Every event that is not listed\n * in `updateOn` is considered a \"default\" event, since different control types have different\n * default events.\n *\n * The control in this example updates by \"default\", \"click\", and \"blur\", with different `debounce`\n * values. You can see that \"click\" doesn't have an individual `debounce` value -\n * therefore it uses the `*` debounce value.\n *\n * There is also a button that calls {@link ngModel.NgModelController#$setViewValue $setViewValue}\n * directly with a \"custom\" event. Since \"custom\" is not defined in the `updateOn` list,\n * it is considered a \"default\" event and will update the\n * control if \"default\" is defined in `updateOn`, and will receive the \"default\" debounce value.\n * Note that this is just to illustrate how custom controls would possibly call `$setViewValue`.\n *\n * You can change the `updateOn` and `debounce` configuration to test different scenarios. This\n * is done with {@link ngModel.NgModelController#$overrideModelOptions $overrideModelOptions}.\n *\n  <example name=\"ngModelOptions-advanced\" module=\"optionsExample\">\n    <file name=\"index.html\">\n       <model-update-demo></model-update-demo>\n    </file>\n    <file name=\"app.js\">\n      angular.module('optionsExample', [])\n        .component('modelUpdateDemo', {\n          templateUrl: 'template.html',\n          controller: function() {\n            this.name = 'Chinua';\n\n            this.options = {\n              updateOn: 'default blur click',\n              debounce: {\n                default: 2000,\n                blur: 0,\n                '*': 1000\n              }\n            };\n\n            this.updateEvents = function() {\n              var eventList = this.options.updateOn.split(' ');\n              eventList.push('*');\n              var events = {};\n\n              for (var i = 0; i < eventList.length; i++) {\n                events[eventList[i]] = this.options.debounce[eventList[i]];\n              }\n\n              this.events = events;\n            };\n\n            this.updateOptions = function() {\n              var options = angular.extend(this.options, {\n                updateOn: Object.keys(this.events).join(' ').replace('*', ''),\n                debounce: this.events\n              });\n\n              this.form.input.$overrideModelOptions(options);\n            };\n\n            // Initialize the event form\n            this.updateEvents();\n          }\n        });\n    </file>\n    <file name=\"template.html\">\n      <form name=\"$ctrl.form\">\n        Input: <input type=\"text\" name=\"input\" ng-model=\"$ctrl.name\" ng-model-options=\"$ctrl.options\" />\n      </form>\n      Model: <tt>{{$ctrl.name}}</tt>\n      <hr>\n      <button ng-click=\"$ctrl.form.input.$setViewValue('some value', 'custom')\">Trigger setViewValue with 'some value' and 'custom' event</button>\n\n      <hr>\n      <form ng-submit=\"$ctrl.updateOptions()\">\n        <b>updateOn</b><br>\n        <input type=\"text\" ng-model=\"$ctrl.options.updateOn\" ng-change=\"$ctrl.updateEvents()\" ng-model-options=\"{debounce: 500}\">\n\n        <table>\n          <tr>\n            <th>Option</th>\n            <th>Debounce value</th>\n          </tr>\n          <tr ng-repeat=\"(key, value) in $ctrl.events\">\n            <td>{{key}}</td>\n            <td><input type=\"number\" ng-model=\"$ctrl.events[key]\" /></td>\n          </tr>\n        </table>\n\n        <br>\n        <input type=\"submit\" value=\"Update options\">\n      </form>\n    </file>\n  </example>\n *\n *\n * ## Model updates and validation\n *\n * The default behaviour in `ngModel` is that the model value is set to `undefined` when the\n * validation determines that the value is invalid. By setting the `allowInvalid` property to true,\n * the model will still be updated even if the value is invalid.\n *\n *\n * ## Connecting to the scope\n *\n * By setting the `getterSetter` property to true you are telling ngModel that the `ngModel` expression\n * on the scope refers to a \"getter/setter\" function rather than the value itself.\n *\n * The following example shows how to bind to getter/setters:\n *\n * <example name=\"ngModelOptions-directive-getter-setter\" module=\"getterSetterExample\">\n *   <file name=\"index.html\">\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"userForm\">\n *         <label>\n *           Name:\n *           <input type=\"text\" name=\"userName\"\n *                  ng-model=\"user.name\"\n *                  ng-model-options=\"{ getterSetter: true }\" />\n *         </label>\n *       </form>\n *       <pre>user.name = <span ng-bind=\"user.name()\"></span></pre>\n *     </div>\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('getterSetterExample', [])\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         var _name = 'Brian';\n *         $scope.user = {\n *           name: function(newName) {\n *             return angular.isDefined(newName) ? (_name = newName) : _name;\n *           }\n *         };\n *       }]);\n *   </file>\n * </example>\n *\n *\n * ## Programmatically changing options\n *\n * The `ngModelOptions` expression is only evaluated once when the directive is linked; it is not\n * watched for changes. However, it is possible to override the options on a single\n * {@link ngModel.NgModelController} instance with\n * {@link ngModel.NgModelController#$overrideModelOptions `NgModelController#$overrideModelOptions()`}.\n * See also the example for\n * {@link ngModelOptions#default-events-extra-triggers-and-catch-all-debounce-values\n * Default events, extra triggers, and catch-all debounce values}.\n *\n *\n * ## Specifying timezones\n *\n * You can specify the timezone that date/time input directives expect by providing its name in the\n * `timezone` property.\n *\n *\n * ## Formatting the value of `time` and `datetime-local`\n *\n * With the options `timeSecondsFormat` and `timeStripZeroSeconds` it is possible to adjust the value\n * that is displayed in the control. Note that browsers may apply their own formatting\n * in the user interface.\n *\n   <example name=\"ngModelOptions-time-format\" module=\"timeExample\">\n     <file name=\"index.html\">\n       <time-example></time-example>\n     </file>\n     <file name=\"script.js\">\n        angular.module('timeExample', [])\n          .component('timeExample', {\n            templateUrl: 'timeExample.html',\n            controller: function() {\n              this.time = new Date(1970, 0, 1, 14, 57, 0);\n\n              this.options = {\n                timeSecondsFormat: 'ss',\n                timeStripZeroSeconds: true\n              };\n\n              this.optionChange = function() {\n                this.timeForm.timeFormatted.$overrideModelOptions(this.options);\n                this.time = new Date(this.time);\n              };\n            }\n          });\n     </file>\n     <file name=\"timeExample.html\">\n       <form name=\"$ctrl.timeForm\">\n         <strong>Default</strong>:\n         <input type=\"time\" ng-model=\"$ctrl.time\" step=\"any\" /><br>\n         <strong>With options</strong>:\n         <input type=\"time\" name=\"timeFormatted\" ng-model=\"$ctrl.time\" step=\"any\" ng-model-options=\"$ctrl.options\" />\n         <br>\n\n         Options:<br>\n         <code>timeSecondsFormat</code>:\n         <input\n           type=\"text\"\n           ng-model=\"$ctrl.options.timeSecondsFormat\"\n           ng-change=\"$ctrl.optionChange()\">\n         <br>\n         <code>timeStripZeroSeconds</code>:\n         <input\n           type=\"checkbox\"\n           ng-model=\"$ctrl.options.timeStripZeroSeconds\"\n           ng-change=\"$ctrl.optionChange()\">\n        </form>\n      </file>\n *  </example>\n *\n * @param {Object} ngModelOptions options to apply to {@link ngModel} directives on this element and\n *   and its descendents.\n *\n * **General options**:\n *\n *   - `updateOn`: string specifying which event should the input be bound to. You can set several\n *     events using an space delimited list. There is a special event called `default` that\n *     matches the default events belonging to the control. These are the events that are bound to\n *     the control, and when fired, update the `$viewValue` via `$setViewValue`.\n *\n *     `ngModelOptions` considers every event that is not listed in `updateOn` a \"default\" event,\n *     since different control types use different default events.\n *\n *     See also the section {@link ngModelOptions#triggering-and-debouncing-model-updates\n *     Triggering and debouncing model updates}.\n *\n *   - `debounce`: integer value which contains the debounce model update value in milliseconds. A\n *     value of 0 triggers an immediate update. If an object is supplied instead, you can specify a\n *     custom value for each event. For example:\n *     ```\n *     ng-model-options=\"{\n *       updateOn: 'default blur',\n *       debounce: { 'default': 500, 'blur': 0 }\n *     }\"\n *     ```\n *     You can use the `*` key to specify a debounce value that applies to all events that are not\n *     specifically listed. In the following example, `mouseup` would have a debounce delay of 1000:\n *     ```\n *     ng-model-options=\"{\n *       updateOn: 'default blur mouseup',\n *       debounce: { 'default': 500, 'blur': 0, '*': 1000 }\n *     }\"\n *     ```\n *   - `allowInvalid`: boolean value which indicates that the model can be set with values that did\n *     not validate correctly instead of the default behavior of setting the model to undefined.\n *   - `getterSetter`: boolean value which determines whether or not to treat functions bound to\n *     `ngModel` as getters/setters.\n *\n *\n *  **Input-type specific options**:\n *\n *   - `timezone`: Defines the timezone to be used to read/write the `Date` instance in the model for\n *     `<input type=\"date\" />`, `<input type=\"time\" />`, ... . It understands UTC/GMT and the\n *     continental US time zone abbreviations, but for general use, use a time zone offset, for\n *     example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)\n *     If not specified, the timezone of the browser will be used.\n *     Note that changing the timezone will have no effect on the current date, and is only applied after\n *     the next input / model change.\n *\n *   - `timeSecondsFormat`: Defines if the `time` and `datetime-local` types should show seconds and\n *     milliseconds. The option follows the format string of {@link date date filter}.\n *     By default, the options is `undefined` which is equal to `'ss.sss'` (seconds and milliseconds).\n *     The other options are `'ss'` (strips milliseconds), and `''` (empty string), which strips both\n *     seconds and milliseconds.\n *     Note that browsers that support `time` and `datetime-local` require the hour and minutes\n *     part of the time string, and may show the value differently in the user interface.\n *     {@link ngModelOptions#formatting-the-value-of-time-and-datetime-local- See the example}.\n *\n *   - `timeStripZeroSeconds`: Defines if the `time` and `datetime-local` types should strip the\n *     seconds and milliseconds from the formatted value if they are zero. This option is applied\n *     after `timeSecondsFormat`.\n *     This option can be used to make the formatting consistent over different browsers, as some\n *     browsers with support for `time` will natively hide the milliseconds and\n *     seconds if they are zero, but others won't, and browsers that don't implement these input\n *     types will always show the full string.\n *     {@link ngModelOptions#formatting-the-value-of-time-and-datetime-local- See the example}.\n *\n */\nvar ngModelOptionsDirective = function() {\n  NgModelOptionsController.$inject = ['$attrs', '$scope'];\n  function NgModelOptionsController($attrs, $scope) {\n    this.$$attrs = $attrs;\n    this.$$scope = $scope;\n  }\n  NgModelOptionsController.prototype = {\n    $onInit: function() {\n      var parentOptions = this.parentCtrl ? this.parentCtrl.$options : defaultModelOptions;\n      var modelOptionsDefinition = this.$$scope.$eval(this.$$attrs.ngModelOptions);\n\n      this.$options = parentOptions.createChild(modelOptionsDefinition);\n    }\n  };\n\n  return {\n    restrict: 'A',\n    // ngModelOptions needs to run before ngModel and input directives\n    priority: 10,\n    require: {parentCtrl: '?^^ngModelOptions'},\n    bindToController: true,\n    controller: NgModelOptionsController\n  };\n};\n\n\n// shallow copy over values from `src` that are not already specified on `dst`\nfunction defaults(dst, src) {\n  forEach(src, function(value, key) {\n    if (!isDefined(dst[key])) {\n      dst[key] = value;\n    }\n  });\n}\n\n/**\n * @ngdoc directive\n * @name ngNonBindable\n * @restrict AC\n * @priority 1000\n * @element ANY\n *\n * @description\n * The `ngNonBindable` directive tells AngularJS not to compile or bind the contents of the current\n * DOM element, including directives on the element itself that have a lower priority than\n * `ngNonBindable`. This is useful if the element contains what appears to be AngularJS directives\n * and bindings but which should be ignored by AngularJS. This could be the case if you have a site\n * that displays snippets of code, for instance.\n *\n * @example\n * In this example there are two locations where a simple interpolation binding (`{{}}`) is present,\n * but the one wrapped in `ngNonBindable` is left alone.\n *\n  <example name=\"ng-non-bindable\">\n    <file name=\"index.html\">\n      <div>Normal: {{1 + 2}}</div>\n      <div ng-non-bindable>Ignored: {{1 + 2}}</div>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n     it('should check ng-non-bindable', function() {\n       expect(element(by.binding('1 + 2')).getText()).toContain('3');\n       expect(element.all(by.css('div')).last().getText()).toMatch(/1 \\+ 2/);\n     });\n    </file>\n  </example>\n */\nvar ngNonBindableDirective = ngDirective({ terminal: true, priority: 1000 });\n\n/* exported ngOptionsDirective */\n\n/* global jqLiteRemove */\n\nvar ngOptionsMinErr = minErr('ngOptions');\n\n/**\n * @ngdoc directive\n * @name ngOptions\n * @restrict A\n *\n * @description\n *\n * The `ngOptions` attribute can be used to dynamically generate a list of `<option>`\n * elements for the `<select>` element using the array or object obtained by evaluating the\n * `ngOptions` comprehension expression.\n *\n * In many cases, {@link ng.directive:ngRepeat ngRepeat} can be used on `<option>` elements instead of\n * `ngOptions` to achieve a similar result. However, `ngOptions` provides some benefits:\n * - more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the\n * comprehension expression\n * - reduced memory consumption by not creating a new scope for each repeated instance\n * - increased render speed by creating the options in a documentFragment instead of individually\n *\n * When an item in the `<select>` menu is selected, the array element or object property\n * represented by the selected option will be bound to the model identified by the `ngModel`\n * directive.\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * ## Complex Models (objects or collections)\n *\n * By default, `ngModel` watches the model by reference, not value. This is important to know when\n * binding the select to a model that is an object or a collection.\n *\n * One issue occurs if you want to preselect an option. For example, if you set\n * the model to an object that is equal to an object in your collection, `ngOptions` won't be able to set the selection,\n * because the objects are not identical. So by default, you should always reference the item in your collection\n * for preselections, e.g.: `$scope.selected = $scope.collection[3]`.\n *\n * Another solution is to use a `track by` clause, because then `ngOptions` will track the identity\n * of the item not by reference, but by the result of the `track by` expression. For example, if your\n * collection items have an id property, you would `track by item.id`.\n *\n * A different issue with objects or collections is that ngModel won't detect if an object property or\n * a collection item changes. For that reason, `ngOptions` additionally watches the model using\n * `$watchCollection`, when the expression contains a `track by` clause or the the select has the `multiple` attribute.\n * This allows ngOptions to trigger a re-rendering of the options even if the actual object/collection\n * has not changed identity, but only a property on the object or an item in the collection changes.\n *\n * Note that `$watchCollection` does a shallow comparison of the properties of the object (or the items in the collection\n * if the model is an array). This means that changing a property deeper than the first level inside the\n * object/collection will not trigger a re-rendering.\n *\n * ## `select` **`as`**\n *\n * Using `select` **`as`** will bind the result of the `select` expression to the model, but\n * the value of the `<select>` and `<option>` html elements will be either the index (for array data sources)\n * or property name (for object data sources) of the value within the collection. If a **`track by`** expression\n * is used, the result of that expression will be set as the value of the `option` and `select` elements.\n *\n *\n * ### `select` **`as`** and **`track by`**\n *\n * <div class=\"alert alert-warning\">\n * Be careful when using `select` **`as`** and **`track by`** in the same expression.\n * </div>\n *\n * Given this array of items on the $scope:\n *\n * ```js\n * $scope.items = [{\n *   id: 1,\n *   label: 'aLabel',\n *   subItem: { name: 'aSubItem' }\n * }, {\n *   id: 2,\n *   label: 'bLabel',\n *   subItem: { name: 'bSubItem' }\n * }];\n * ```\n *\n * This will work:\n *\n * ```html\n * <select ng-options=\"item as item.label for item in items track by item.id\" ng-model=\"selected\"></select>\n * ```\n * ```js\n * $scope.selected = $scope.items[0];\n * ```\n *\n * but this will not work:\n *\n * ```html\n * <select ng-options=\"item.subItem as item.label for item in items track by item.id\" ng-model=\"selected\"></select>\n * ```\n * ```js\n * $scope.selected = $scope.items[0].subItem;\n * ```\n *\n * In both examples, the **`track by`** expression is applied successfully to each `item` in the\n * `items` array. Because the selected option has been set programmatically in the controller, the\n * **`track by`** expression is also applied to the `ngModel` value. In the first example, the\n * `ngModel` value is `items[0]` and the **`track by`** expression evaluates to `items[0].id` with\n * no issue. In the second example, the `ngModel` value is `items[0].subItem` and the **`track by`**\n * expression evaluates to `items[0].subItem.id` (which is undefined). As a result, the model value\n * is not matched against any `<option>` and the `<select>` appears as having no selected value.\n *\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {comprehension_expression} ngOptions in one of the following forms:\n *\n *   * for array data sources:\n *     * `label` **`for`** `value` **`in`** `array`\n *     * `select` **`as`** `label` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array`\n *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array`\n *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`\n *     * `label` **`for`** `value` **`in`** `array` | orderBy:`orderexpr` **`track by`** `trackexpr`\n *        (for including a filter with `track by`)\n *   * for object data sources:\n *     * `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`for (`**`key` **`,`** `value`**`) in`** `object`\n *     * `label` **`group by`** `group` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `label` **`disable when`** `disable` **`for (`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`group by`** `group`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *     * `select` **`as`** `label` **`disable when`** `disable`\n *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`\n *\n * Where:\n *\n *   * `array` / `object`: an expression which evaluates to an array / object to iterate over.\n *   * `value`: local variable which will refer to each item in the `array` or each property value\n *      of `object` during iteration.\n *   * `key`: local variable which will refer to a property name in `object` during iteration.\n *   * `label`: The result of this expression will be the label for `<option>` element. The\n *     `expression` will most likely refer to the `value` variable (e.g. `value.propertyName`).\n *   * `select`: The result of this expression will be bound to the model of the parent `<select>`\n *      element. If not specified, `select` expression will default to `value`.\n *   * `group`: The result of this expression will be used to group options using the `<optgroup>`\n *      DOM element.\n *   * `disable`: The result of this expression will be used to disable the rendered `<option>`\n *      element. Return `true` to disable.\n *   * `trackexpr`: Used when working with an array of objects. The result of this expression will be\n *      used to identify the objects in the array. The `trackexpr` will most likely refer to the\n *     `value` variable (e.g. `value.propertyName`). With this the selection is preserved\n *      even when the options are recreated (e.g. reloaded from the server).\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} required The control is considered valid only if value is entered.\n * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to\n *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of\n *    `required` when you want to data-bind to the `required` attribute.\n * @param {string=} ngAttrSize sets the size of the select element dynamically. Uses the\n * {@link guide/interpolation#-ngattr-for-binding-to-arbitrary-attributes ngAttr} directive.\n *\n * @example\n    <example module=\"selectExample\" name=\"select\">\n      <file name=\"index.html\">\n        <script>\n        angular.module('selectExample', [])\n          .controller('ExampleController', ['$scope', function($scope) {\n            $scope.colors = [\n              {name:'black', shade:'dark'},\n              {name:'white', shade:'light', notAnOption: true},\n              {name:'red', shade:'dark'},\n              {name:'blue', shade:'dark', notAnOption: true},\n              {name:'yellow', shade:'light', notAnOption: false}\n            ];\n            $scope.myColor = $scope.colors[2]; // red\n          }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <ul>\n            <li ng-repeat=\"color in colors\">\n              <label>Name: <input ng-model=\"color.name\"></label>\n              <label><input type=\"checkbox\" ng-model=\"color.notAnOption\"> Disabled?</label>\n              <button ng-click=\"colors.splice($index, 1)\" aria-label=\"Remove\">X</button>\n            </li>\n            <li>\n              <button ng-click=\"colors.push({})\">add</button>\n            </li>\n          </ul>\n          <hr/>\n          <label>Color (null not allowed):\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\"></select>\n          </label><br/>\n          <label>Color (null allowed):\n          <span  class=\"nullable\">\n            <select ng-model=\"myColor\" ng-options=\"color.name for color in colors\">\n              <option value=\"\">-- choose color --</option>\n            </select>\n          </span></label><br/>\n\n          <label>Color grouped by shade:\n            <select ng-model=\"myColor\" ng-options=\"color.name group by color.shade for color in colors\">\n            </select>\n          </label><br/>\n\n          <label>Color grouped by shade, with some disabled:\n            <select ng-model=\"myColor\"\n                  ng-options=\"color.name group by color.shade disable when color.notAnOption for color in colors\">\n            </select>\n          </label><br/>\n\n\n\n          Select <button ng-click=\"myColor = { name:'not in list', shade: 'other' }\">bogus</button>.\n          <br/>\n          <hr/>\n          Currently selected: {{ {selected_color:myColor} }}\n          <div style=\"border:solid 1px black; height:20px\"\n               ng-style=\"{'background-color':myColor.name}\">\n          </div>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n         it('should check ng-options', function() {\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('red');\n           element.all(by.model('myColor')).first().click();\n           element.all(by.css('select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('black');\n           element(by.css('.nullable select[ng-model=\"myColor\"]')).click();\n           element.all(by.css('.nullable select[ng-model=\"myColor\"] option')).first().click();\n           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('null');\n         });\n      </file>\n    </example>\n */\n\n/* eslint-disable max-len */\n//                     //00001111111111000000000002222222222000000000000000000000333333333300000000000000000000000004444444444400000000000005555555555555000000000666666666666600000007777777777777000000000000000888888888800000000000000000009999999999\nvar NG_OPTIONS_REGEXP = /^\\s*([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+group\\s+by\\s+([\\s\\S]+?))?(?:\\s+disable\\s+when\\s+([\\s\\S]+?))?\\s+for\\s+(?:([$\\w][$\\w]*)|(?:\\(\\s*([$\\w][$\\w]*)\\s*,\\s*([$\\w][$\\w]*)\\s*\\)))\\s+in\\s+([\\s\\S]+?)(?:\\s+track\\s+by\\s+([\\s\\S]+?))?$/;\n                        // 1: value expression (valueFn)\n                        // 2: label expression (displayFn)\n                        // 3: group by expression (groupByFn)\n                        // 4: disable when expression (disableWhenFn)\n                        // 5: array item variable name\n                        // 6: object item key variable name\n                        // 7: object item value variable name\n                        // 8: collection expression\n                        // 9: track by expression\n/* eslint-enable */\n\n\nvar ngOptionsDirective = ['$compile', '$document', '$parse', function($compile, $document, $parse) {\n\n  function parseOptionsExpression(optionsExp, selectElement, scope) {\n\n    var match = optionsExp.match(NG_OPTIONS_REGEXP);\n    if (!(match)) {\n      throw ngOptionsMinErr('iexp',\n        'Expected expression in form of ' +\n        '\\'_select_ (as _label_)? for (_key_,)?_value_ in _collection_\\'' +\n        ' but got \\'{0}\\'. Element: {1}',\n        optionsExp, startingTag(selectElement));\n    }\n\n    // Extract the parts from the ngOptions expression\n\n    // The variable name for the value of the item in the collection\n    var valueName = match[5] || match[7];\n    // The variable name for the key of the item in the collection\n    var keyName = match[6];\n\n    // An expression that generates the viewValue for an option if there is a label expression\n    var selectAs = / as /.test(match[0]) && match[1];\n    // An expression that is used to track the id of each object in the options collection\n    var trackBy = match[9];\n    // An expression that generates the viewValue for an option if there is no label expression\n    var valueFn = $parse(match[2] ? match[1] : valueName);\n    var selectAsFn = selectAs && $parse(selectAs);\n    var viewValueFn = selectAsFn || valueFn;\n    var trackByFn = trackBy && $parse(trackBy);\n\n    // Get the value by which we are going to track the option\n    // if we have a trackFn then use that (passing scope and locals)\n    // otherwise just hash the given viewValue\n    var getTrackByValueFn = trackBy ?\n                              function(value, locals) { return trackByFn(scope, locals); } :\n                              function getHashOfValue(value) { return hashKey(value); };\n    var getTrackByValue = function(value, key) {\n      return getTrackByValueFn(value, getLocals(value, key));\n    };\n\n    var displayFn = $parse(match[2] || match[1]);\n    var groupByFn = $parse(match[3] || '');\n    var disableWhenFn = $parse(match[4] || '');\n    var valuesFn = $parse(match[8]);\n\n    var locals = {};\n    var getLocals = keyName ? function(value, key) {\n      locals[keyName] = key;\n      locals[valueName] = value;\n      return locals;\n    } : function(value) {\n      locals[valueName] = value;\n      return locals;\n    };\n\n\n    function Option(selectValue, viewValue, label, group, disabled) {\n      this.selectValue = selectValue;\n      this.viewValue = viewValue;\n      this.label = label;\n      this.group = group;\n      this.disabled = disabled;\n    }\n\n    function getOptionValuesKeys(optionValues) {\n      var optionValuesKeys;\n\n      if (!keyName && isArrayLike(optionValues)) {\n        optionValuesKeys = optionValues;\n      } else {\n        // if object, extract keys, in enumeration order, unsorted\n        optionValuesKeys = [];\n        for (var itemKey in optionValues) {\n          if (optionValues.hasOwnProperty(itemKey) && itemKey.charAt(0) !== '$') {\n            optionValuesKeys.push(itemKey);\n          }\n        }\n      }\n      return optionValuesKeys;\n    }\n\n    return {\n      trackBy: trackBy,\n      getTrackByValue: getTrackByValue,\n      getWatchables: $parse(valuesFn, function(optionValues) {\n        // Create a collection of things that we would like to watch (watchedArray)\n        // so that they can all be watched using a single $watchCollection\n        // that only runs the handler once if anything changes\n        var watchedArray = [];\n        optionValues = optionValues || [];\n\n        var optionValuesKeys = getOptionValuesKeys(optionValues);\n        var optionValuesLength = optionValuesKeys.length;\n        for (var index = 0; index < optionValuesLength; index++) {\n          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];\n          var value = optionValues[key];\n\n          var locals = getLocals(value, key);\n          var selectValue = getTrackByValueFn(value, locals);\n          watchedArray.push(selectValue);\n\n          // Only need to watch the displayFn if there is a specific label expression\n          if (match[2] || match[1]) {\n            var label = displayFn(scope, locals);\n            watchedArray.push(label);\n          }\n\n          // Only need to watch the disableWhenFn if there is a specific disable expression\n          if (match[4]) {\n            var disableWhen = disableWhenFn(scope, locals);\n            watchedArray.push(disableWhen);\n          }\n        }\n        return watchedArray;\n      }),\n\n      getOptions: function() {\n\n        var optionItems = [];\n        var selectValueMap = {};\n\n        // The option values were already computed in the `getWatchables` fn,\n        // which must have been called to trigger `getOptions`\n        var optionValues = valuesFn(scope) || [];\n        var optionValuesKeys = getOptionValuesKeys(optionValues);\n        var optionValuesLength = optionValuesKeys.length;\n\n        for (var index = 0; index < optionValuesLength; index++) {\n          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];\n          var value = optionValues[key];\n          var locals = getLocals(value, key);\n          var viewValue = viewValueFn(scope, locals);\n          var selectValue = getTrackByValueFn(viewValue, locals);\n          var label = displayFn(scope, locals);\n          var group = groupByFn(scope, locals);\n          var disabled = disableWhenFn(scope, locals);\n          var optionItem = new Option(selectValue, viewValue, label, group, disabled);\n\n          optionItems.push(optionItem);\n          selectValueMap[selectValue] = optionItem;\n        }\n\n        return {\n          items: optionItems,\n          selectValueMap: selectValueMap,\n          getOptionFromViewValue: function(value) {\n            return selectValueMap[getTrackByValue(value)];\n          },\n          getViewValueFromOption: function(option) {\n            // If the viewValue could be an object that may be mutated by the application,\n            // we need to make a copy and not return the reference to the value on the option.\n            return trackBy ? copy(option.viewValue) : option.viewValue;\n          }\n        };\n      }\n    };\n  }\n\n\n  // Support: IE 9 only\n  // We can't just jqLite('<option>') since jqLite is not smart enough\n  // to create it in <select> and IE barfs otherwise.\n  var optionTemplate = window.document.createElement('option'),\n      optGroupTemplate = window.document.createElement('optgroup');\n\n    function ngOptionsPostLink(scope, selectElement, attr, ctrls) {\n\n      var selectCtrl = ctrls[0];\n      var ngModelCtrl = ctrls[1];\n      var multiple = attr.multiple;\n\n      // The emptyOption allows the application developer to provide their own custom \"empty\"\n      // option when the viewValue does not match any of the option values.\n      for (var i = 0, children = selectElement.children(), ii = children.length; i < ii; i++) {\n        if (children[i].value === '') {\n          selectCtrl.hasEmptyOption = true;\n          selectCtrl.emptyOption = children.eq(i);\n          break;\n        }\n      }\n\n      // The empty option will be compiled and rendered before we first generate the options\n      selectElement.empty();\n\n      var providedEmptyOption = !!selectCtrl.emptyOption;\n\n      var unknownOption = jqLite(optionTemplate.cloneNode(false));\n      unknownOption.val('?');\n\n      var options;\n      var ngOptions = parseOptionsExpression(attr.ngOptions, selectElement, scope);\n      // This stores the newly created options before they are appended to the select.\n      // Since the contents are removed from the fragment when it is appended,\n      // we only need to create it once.\n      var listFragment = $document[0].createDocumentFragment();\n\n      // Overwrite the implementation. ngOptions doesn't use hashes\n      selectCtrl.generateUnknownOptionValue = function(val) {\n        return '?';\n      };\n\n      // Update the controller methods for multiple selectable options\n      if (!multiple) {\n\n        selectCtrl.writeValue = function writeNgOptionsValue(value) {\n          // The options might not be defined yet when ngModel tries to render\n          if (!options) return;\n\n          var selectedOption = selectElement[0].options[selectElement[0].selectedIndex];\n          var option = options.getOptionFromViewValue(value);\n\n          // Make sure to remove the selected attribute from the previously selected option\n          // Otherwise, screen readers might get confused\n          if (selectedOption) selectedOption.removeAttribute('selected');\n\n          if (option) {\n            // Don't update the option when it is already selected.\n            // For example, the browser will select the first option by default. In that case,\n            // most properties are set automatically - except the `selected` attribute, which we\n            // set always\n\n            if (selectElement[0].value !== option.selectValue) {\n              selectCtrl.removeUnknownOption();\n\n              selectElement[0].value = option.selectValue;\n              option.element.selected = true;\n            }\n\n            option.element.setAttribute('selected', 'selected');\n          } else {\n            selectCtrl.selectUnknownOrEmptyOption(value);\n          }\n        };\n\n        selectCtrl.readValue = function readNgOptionsValue() {\n\n          var selectedOption = options.selectValueMap[selectElement.val()];\n\n          if (selectedOption && !selectedOption.disabled) {\n            selectCtrl.unselectEmptyOption();\n            selectCtrl.removeUnknownOption();\n            return options.getViewValueFromOption(selectedOption);\n          }\n          return null;\n        };\n\n        // If we are using `track by` then we must watch the tracked value on the model\n        // since ngModel only watches for object identity change\n        // FIXME: When a user selects an option, this watch will fire needlessly\n        if (ngOptions.trackBy) {\n          scope.$watch(\n            function() { return ngOptions.getTrackByValue(ngModelCtrl.$viewValue); },\n            function() { ngModelCtrl.$render(); }\n          );\n        }\n\n      } else {\n\n        selectCtrl.writeValue = function writeNgOptionsMultiple(values) {\n          // The options might not be defined yet when ngModel tries to render\n          if (!options) return;\n\n          // Only set `<option>.selected` if necessary, in order to prevent some browsers from\n          // scrolling to `<option>` elements that are outside the `<select>` element's viewport.\n          var selectedOptions = values && values.map(getAndUpdateSelectedOption) || [];\n\n          options.items.forEach(function(option) {\n            if (option.element.selected && !includes(selectedOptions, option)) {\n              option.element.selected = false;\n            }\n          });\n        };\n\n\n        selectCtrl.readValue = function readNgOptionsMultiple() {\n          var selectedValues = selectElement.val() || [],\n              selections = [];\n\n          forEach(selectedValues, function(value) {\n            var option = options.selectValueMap[value];\n            if (option && !option.disabled) selections.push(options.getViewValueFromOption(option));\n          });\n\n          return selections;\n        };\n\n        // If we are using `track by` then we must watch these tracked values on the model\n        // since ngModel only watches for object identity change\n        if (ngOptions.trackBy) {\n\n          scope.$watchCollection(function() {\n            if (isArray(ngModelCtrl.$viewValue)) {\n              return ngModelCtrl.$viewValue.map(function(value) {\n                return ngOptions.getTrackByValue(value);\n              });\n            }\n          }, function() {\n            ngModelCtrl.$render();\n          });\n\n        }\n      }\n\n      if (providedEmptyOption) {\n\n        // compile the element since there might be bindings in it\n        $compile(selectCtrl.emptyOption)(scope);\n\n        selectElement.prepend(selectCtrl.emptyOption);\n\n        if (selectCtrl.emptyOption[0].nodeType === NODE_TYPE_COMMENT) {\n          // This means the empty option has currently no actual DOM node, probably because\n          // it has been modified by a transclusion directive.\n          selectCtrl.hasEmptyOption = false;\n\n          // Redefine the registerOption function, which will catch\n          // options that are added by ngIf etc. (rendering of the node is async because of\n          // lazy transclusion)\n          selectCtrl.registerOption = function(optionScope, optionEl) {\n            if (optionEl.val() === '') {\n              selectCtrl.hasEmptyOption = true;\n              selectCtrl.emptyOption = optionEl;\n              selectCtrl.emptyOption.removeClass('ng-scope');\n              // This ensures the new empty option is selected if previously no option was selected\n              ngModelCtrl.$render();\n\n              optionEl.on('$destroy', function() {\n                var needsRerender = selectCtrl.$isEmptyOptionSelected();\n\n                selectCtrl.hasEmptyOption = false;\n                selectCtrl.emptyOption = undefined;\n\n                if (needsRerender) ngModelCtrl.$render();\n              });\n            }\n          };\n\n        } else {\n          // remove the class, which is added automatically because we recompile the element and it\n          // becomes the compilation root\n          selectCtrl.emptyOption.removeClass('ng-scope');\n        }\n\n      }\n\n      // We will re-render the option elements if the option values or labels change\n      scope.$watchCollection(ngOptions.getWatchables, updateOptions);\n\n      // ------------------------------------------------------------------ //\n\n      function addOptionElement(option, parent) {\n        var optionElement = optionTemplate.cloneNode(false);\n        parent.appendChild(optionElement);\n        updateOptionElement(option, optionElement);\n      }\n\n      function getAndUpdateSelectedOption(viewValue) {\n        var option = options.getOptionFromViewValue(viewValue);\n        var element = option && option.element;\n\n        if (element && !element.selected) element.selected = true;\n\n        return option;\n      }\n\n      function updateOptionElement(option, element) {\n        option.element = element;\n        element.disabled = option.disabled;\n        // Support: IE 11 only, Edge 12-13 only\n        // NOTE: The label must be set before the value, otherwise IE 11 & Edge create unresponsive\n        // selects in certain circumstances when multiple selects are next to each other and display\n        // the option list in listbox style, i.e. the select is [multiple], or specifies a [size].\n        // See https://github.com/angular/angular.js/issues/11314 for more info.\n        // This is unfortunately untestable with unit / e2e tests\n        if (option.label !== element.label) {\n          element.label = option.label;\n          element.textContent = option.label;\n        }\n        element.value = option.selectValue;\n      }\n\n      function updateOptions() {\n        var previousValue = options && selectCtrl.readValue();\n\n        // We must remove all current options, but cannot simply set innerHTML = null\n        // since the providedEmptyOption might have an ngIf on it that inserts comments which we\n        // must preserve.\n        // Instead, iterate over the current option elements and remove them or their optgroup\n        // parents\n        if (options) {\n\n          for (var i = options.items.length - 1; i >= 0; i--) {\n            var option = options.items[i];\n            if (isDefined(option.group)) {\n              jqLiteRemove(option.element.parentNode);\n            } else {\n              jqLiteRemove(option.element);\n            }\n          }\n        }\n\n        options = ngOptions.getOptions();\n\n        var groupElementMap = {};\n\n        options.items.forEach(function addOption(option) {\n          var groupElement;\n\n          if (isDefined(option.group)) {\n\n            // This option is to live in a group\n            // See if we have already created this group\n            groupElement = groupElementMap[option.group];\n\n            if (!groupElement) {\n\n              groupElement = optGroupTemplate.cloneNode(false);\n              listFragment.appendChild(groupElement);\n\n              // Update the label on the group element\n              // \"null\" is special cased because of Safari\n              groupElement.label = option.group === null ? 'null' : option.group;\n\n              // Store it for use later\n              groupElementMap[option.group] = groupElement;\n            }\n\n            addOptionElement(option, groupElement);\n\n          } else {\n\n            // This option is not in a group\n            addOptionElement(option, listFragment);\n          }\n        });\n\n        selectElement[0].appendChild(listFragment);\n\n        ngModelCtrl.$render();\n\n        // Check to see if the value has changed due to the update to the options\n        if (!ngModelCtrl.$isEmpty(previousValue)) {\n          var nextValue = selectCtrl.readValue();\n          var isNotPrimitive = ngOptions.trackBy || multiple;\n          if (isNotPrimitive ? !equals(previousValue, nextValue) : previousValue !== nextValue) {\n            ngModelCtrl.$setViewValue(nextValue);\n            ngModelCtrl.$render();\n          }\n        }\n      }\n  }\n\n  return {\n    restrict: 'A',\n    terminal: true,\n    require: ['select', 'ngModel'],\n    link: {\n      pre: function ngOptionsPreLink(scope, selectElement, attr, ctrls) {\n        // Deactivate the SelectController.register method to prevent\n        // option directives from accidentally registering themselves\n        // (and unwanted $destroy handlers etc.)\n        ctrls[0].registerOption = noop;\n      },\n      post: ngOptionsPostLink\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngPluralize\n * @restrict EA\n *\n * @description\n * `ngPluralize` is a directive that displays messages according to en-US localization rules.\n * These rules are bundled with angular.js, but can be overridden\n * (see {@link guide/i18n AngularJS i18n} dev guide). You configure ngPluralize directive\n * by specifying the mappings between\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * and the strings to be displayed.\n *\n * ## Plural categories and explicit number rules\n * There are two\n * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)\n * in AngularJS's default en-US locale: \"one\" and \"other\".\n *\n * While a plural category may match many numbers (for example, in en-US locale, \"other\" can match\n * any number that is not 1), an explicit number rule can only match one number. For example, the\n * explicit number rule for \"3\" matches the number 3. There are examples of plural categories\n * and explicit number rules throughout the rest of this documentation.\n *\n * ## Configuring ngPluralize\n * You configure ngPluralize by providing 2 attributes: `count` and `when`.\n * You can also provide an optional attribute, `offset`.\n *\n * The value of the `count` attribute can be either a string or an {@link guide/expression\n * AngularJS expression}; these are evaluated on the current scope for its bound value.\n *\n * The `when` attribute specifies the mappings between plural categories and the actual\n * string to be displayed. The value of the attribute should be a JSON object.\n *\n * The following example shows how to configure ngPluralize:\n *\n * ```html\n * <ng-pluralize count=\"personCount\"\n                 when=\"{'0': 'Nobody is viewing.',\n *                      'one': '1 person is viewing.',\n *                      'other': '{} people are viewing.'}\">\n * </ng-pluralize>\n *```\n *\n * In the example, `\"0: Nobody is viewing.\"` is an explicit number rule. If you did not\n * specify this rule, 0 would be matched to the \"other\" category and \"0 people are viewing\"\n * would be shown instead of \"Nobody is viewing\". You can specify an explicit number rule for\n * other numbers, for example 12, so that instead of showing \"12 people are viewing\", you can\n * show \"a dozen people are viewing\".\n *\n * You can use a set of closed braces (`{}`) as a placeholder for the number that you want substituted\n * into pluralized strings. In the previous example, AngularJS will replace `{}` with\n * <span ng-non-bindable>`{{personCount}}`</span>. The closed braces `{}` is a placeholder\n * for <span ng-non-bindable>{{numberExpression}}</span>.\n *\n * If no rule is defined for a category, then an empty string is displayed and a warning is generated.\n * Note that some locales define more categories than `one` and `other`. For example, fr-fr defines `few` and `many`.\n *\n * ## Configuring ngPluralize with offset\n * The `offset` attribute allows further customization of pluralized text, which can result in\n * a better user experience. For example, instead of the message \"4 people are viewing this document\",\n * you might display \"John, Kate and 2 others are viewing this document\".\n * The offset attribute allows you to offset a number by any desired value.\n * Let's take a look at an example:\n *\n * ```html\n * <ng-pluralize count=\"personCount\" offset=2\n *               when=\"{'0': 'Nobody is viewing.',\n *                      '1': '{{person1}} is viewing.',\n *                      '2': '{{person1}} and {{person2}} are viewing.',\n *                      'one': '{{person1}}, {{person2}} and one other person are viewing.',\n *                      'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n * </ng-pluralize>\n * ```\n *\n * Notice that we are still using two plural categories(one, other), but we added\n * three explicit number rules 0, 1 and 2.\n * When one person, perhaps John, views the document, \"John is viewing\" will be shown.\n * When three people view the document, no explicit number rule is found, so\n * an offset of 2 is taken off 3, and AngularJS uses 1 to decide the plural category.\n * In this case, plural category 'one' is matched and \"John, Mary and one other person are viewing\"\n * is shown.\n *\n * Note that when you specify offsets, you must provide explicit number rules for\n * numbers from 0 up to and including the offset. If you use an offset of 3, for example,\n * you must provide explicit number rules for 0, 1, 2 and 3. You must also provide plural strings for\n * plural categories \"one\" and \"other\".\n *\n * @param {string|expression} count The variable to be bound to.\n * @param {string} when The mapping between plural category to its corresponding strings.\n * @param {number=} offset Offset to deduct from the total number.\n *\n * @example\n    <example module=\"pluralizeExample\" name=\"ng-pluralize\">\n      <file name=\"index.html\">\n        <script>\n          angular.module('pluralizeExample', [])\n            .controller('ExampleController', ['$scope', function($scope) {\n              $scope.person1 = 'Igor';\n              $scope.person2 = 'Misko';\n              $scope.personCount = 1;\n            }]);\n        </script>\n        <div ng-controller=\"ExampleController\">\n          <label>Person 1:<input type=\"text\" ng-model=\"person1\" value=\"Igor\" /></label><br/>\n          <label>Person 2:<input type=\"text\" ng-model=\"person2\" value=\"Misko\" /></label><br/>\n          <label>Number of People:<input type=\"text\" ng-model=\"personCount\" value=\"1\" /></label><br/>\n\n          <!--- Example with simple pluralization rules for en locale --->\n          Without Offset:\n          <ng-pluralize count=\"personCount\"\n                        when=\"{'0': 'Nobody is viewing.',\n                               'one': '1 person is viewing.',\n                               'other': '{} people are viewing.'}\">\n          </ng-pluralize><br>\n\n          <!--- Example with offset --->\n          With Offset(2):\n          <ng-pluralize count=\"personCount\" offset=2\n                        when=\"{'0': 'Nobody is viewing.',\n                               '1': '{{person1}} is viewing.',\n                               '2': '{{person1}} and {{person2}} are viewing.',\n                               'one': '{{person1}}, {{person2}} and one other person are viewing.',\n                               'other': '{{person1}}, {{person2}} and {} other people are viewing.'}\">\n          </ng-pluralize>\n        </div>\n      </file>\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should show correct pluralized string', function() {\n          var withoutOffset = element.all(by.css('ng-pluralize')).get(0);\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var countInput = element(by.model('personCount'));\n\n          expect(withoutOffset.getText()).toEqual('1 person is viewing.');\n          expect(withOffset.getText()).toEqual('Igor is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('0');\n\n          expect(withoutOffset.getText()).toEqual('Nobody is viewing.');\n          expect(withOffset.getText()).toEqual('Nobody is viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('2');\n\n          expect(withoutOffset.getText()).toEqual('2 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor and Misko are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('3');\n\n          expect(withoutOffset.getText()).toEqual('3 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and one other person are viewing.');\n\n          countInput.clear();\n          countInput.sendKeys('4');\n\n          expect(withoutOffset.getText()).toEqual('4 people are viewing.');\n          expect(withOffset.getText()).toEqual('Igor, Misko and 2 other people are viewing.');\n        });\n        it('should show data-bound names', function() {\n          var withOffset = element.all(by.css('ng-pluralize')).get(1);\n          var personCount = element(by.model('personCount'));\n          var person1 = element(by.model('person1'));\n          var person2 = element(by.model('person2'));\n          personCount.clear();\n          personCount.sendKeys('4');\n          person1.clear();\n          person1.sendKeys('Di');\n          person2.clear();\n          person2.sendKeys('Vojta');\n          expect(withOffset.getText()).toEqual('Di, Vojta and 2 other people are viewing.');\n        });\n      </file>\n    </example>\n */\nvar ngPluralizeDirective = ['$locale', '$interpolate', '$log', function($locale, $interpolate, $log) {\n  var BRACE = /{}/g,\n      IS_WHEN = /^when(Minus)?(.+)$/;\n\n  return {\n    link: function(scope, element, attr) {\n      var numberExp = attr.count,\n          whenExp = attr.$attr.when && element.attr(attr.$attr.when), // we have {{}} in attrs\n          offset = attr.offset || 0,\n          whens = scope.$eval(whenExp) || {},\n          whensExpFns = {},\n          startSymbol = $interpolate.startSymbol(),\n          endSymbol = $interpolate.endSymbol(),\n          braceReplacement = startSymbol + numberExp + '-' + offset + endSymbol,\n          watchRemover = angular.noop,\n          lastCount;\n\n      forEach(attr, function(expression, attributeName) {\n        var tmpMatch = IS_WHEN.exec(attributeName);\n        if (tmpMatch) {\n          var whenKey = (tmpMatch[1] ? '-' : '') + lowercase(tmpMatch[2]);\n          whens[whenKey] = element.attr(attr.$attr[attributeName]);\n        }\n      });\n      forEach(whens, function(expression, key) {\n        whensExpFns[key] = $interpolate(expression.replace(BRACE, braceReplacement));\n\n      });\n\n      scope.$watch(numberExp, function ngPluralizeWatchAction(newVal) {\n        var count = parseFloat(newVal);\n        var countIsNaN = isNumberNaN(count);\n\n        if (!countIsNaN && !(count in whens)) {\n          // If an explicit number rule such as 1, 2, 3... is defined, just use it.\n          // Otherwise, check it against pluralization rules in $locale service.\n          count = $locale.pluralCat(count - offset);\n        }\n\n        // If both `count` and `lastCount` are NaN, we don't need to re-register a watch.\n        // In JS `NaN !== NaN`, so we have to explicitly check.\n        if ((count !== lastCount) && !(countIsNaN && isNumberNaN(lastCount))) {\n          watchRemover();\n          var whenExpFn = whensExpFns[count];\n          if (isUndefined(whenExpFn)) {\n            if (newVal != null) {\n              $log.debug('ngPluralize: no rule defined for \\'' + count + '\\' in ' + whenExp);\n            }\n            watchRemover = noop;\n            updateElementText();\n          } else {\n            watchRemover = scope.$watch(whenExpFn, updateElementText);\n          }\n          lastCount = count;\n        }\n      });\n\n      function updateElementText(newText) {\n        element.text(newText || '');\n      }\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngRef\n * @restrict A\n *\n * @description\n * The `ngRef` attribute tells AngularJS to assign the controller of a component (or a directive)\n * to the given property in the current scope. It is also possible to add the jqlite-wrapped DOM\n * element to the scope.\n *\n * If the element with `ngRef` is destroyed `null` is assigned to the property.\n *\n * Note that if you want to assign from a child into the parent scope, you must initialize the\n * target property on the parent scope, otherwise `ngRef` will assign on the child scope.\n * This commonly happens when assigning elements or components wrapped in {@link ngIf} or\n * {@link ngRepeat}. See the second example below.\n *\n *\n * @element ANY\n * @param {string} ngRef property name - A valid AngularJS expression identifier to which the\n *                       controller or jqlite-wrapped DOM element will be bound.\n * @param {string=} ngRefRead read value - The name of a directive (or component) on this element,\n *                            or the special string `$element`. If a name is provided, `ngRef` will\n *                            assign the matching controller. If `$element` is provided, the element\n *                            itself is assigned (even if a controller is available).\n *\n *\n * @example\n * ### Simple toggle\n * This example shows how the controller of the component toggle\n * is reused in the template through the scope to use its logic.\n * <example name=\"ng-ref-component\" module=\"myApp\">\n *   <file name=\"index.html\">\n *     <my-toggle ng-ref=\"myToggle\"></my-toggle>\n *     <button ng-click=\"myToggle.toggle()\">Toggle</button>\n *     <div ng-show=\"myToggle.isOpen()\">\n *       You are using a component in the same template to show it.\n *     </div>\n *   </file>\n *   <file name=\"index.js\">\n *     angular.module('myApp', [])\n *     .component('myToggle', {\n *       controller: function ToggleController() {\n *         var opened = false;\n *         this.isOpen = function() { return opened; };\n *         this.toggle = function() { opened = !opened; };\n *       }\n *     });\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      it('should publish the toggle into the scope', function() {\n *        var toggle = element(by.buttonText('Toggle'));\n *        expect(toggle.evaluate('myToggle.isOpen()')).toEqual(false);\n *        toggle.click();\n *        expect(toggle.evaluate('myToggle.isOpen()')).toEqual(true);\n *      });\n *   </file>\n * </example>\n *\n * @example\n * ### ngRef inside scopes\n * This example shows how `ngRef` works with child scopes. The `ngRepeat`-ed `myWrapper` components\n * are assigned to the scope of `myRoot`, because the `toggles` property has been initialized.\n * The repeated `myToggle` components are published to the child scopes created by `ngRepeat`.\n * `ngIf` behaves similarly - the assignment of `myToggle` happens in the `ngIf` child scope,\n * because the target property has not been initialized on the `myRoot` component controller.\n *\n * <example name=\"ng-ref-scopes\" module=\"myApp\">\n *   <file name=\"index.html\">\n *     <my-root></my-root>\n *   </file>\n *   <file name=\"index.js\">\n *     angular.module('myApp', [])\n *     .component('myRoot', {\n *       templateUrl: 'root.html',\n *       controller: function() {\n *         this.wrappers = []; // initialize the array so that the wrappers are assigned into the parent scope\n *       }\n *     })\n *     .component('myToggle', {\n *       template: '<strong>myToggle</strong><button ng-click=\"$ctrl.toggle()\" ng-transclude></button>',\n *       transclude: true,\n *       controller: function ToggleController() {\n *         var opened = false;\n *         this.isOpen = function() { return opened; };\n *         this.toggle = function() { opened = !opened; };\n *       }\n *     })\n *     .component('myWrapper', {\n *       transclude: true,\n *       template: '<strong>myWrapper</strong>' +\n *         '<div>ngRepeatToggle.isOpen(): {{$ctrl.ngRepeatToggle.isOpen() | json}}</div>' +\n *         '<my-toggle ng-ref=\"$ctrl.ngRepeatToggle\"><ng-transclude></ng-transclude></my-toggle>'\n *     });\n *   </file>\n *   <file name=\"root.html\">\n *     <strong>myRoot</strong>\n *     <my-toggle ng-ref=\"$ctrl.outerToggle\">Outer Toggle</my-toggle>\n *     <div>outerToggle.isOpen(): {{$ctrl.outerToggle.isOpen() | json}}</div>\n *     <div><em>wrappers assigned to root</em><br>\n *     <div ng-repeat=\"wrapper in $ctrl.wrappers\">\n *       wrapper.ngRepeatToggle.isOpen(): {{wrapper.ngRepeatToggle.isOpen() | json}}\n *     </div>\n *\n *     <ul>\n *       <li ng-repeat=\"(index, value) in [1,2,3]\">\n *         <strong>ngRepeat</strong>\n *         <div>outerToggle.isOpen(): {{$ctrl.outerToggle.isOpen() | json}}</div>\n *         <my-wrapper ng-ref=\"$ctrl.wrappers[index]\">ngRepeat Toggle {{$index + 1}}</my-wrapper>\n *       </li>\n *     </ul>\n *\n *     <div>ngIfToggle.isOpen(): {{ngIfToggle.isOpen()}} // This is always undefined because it's\n *       assigned to the child scope created by ngIf.\n *     </div>\n *     <div ng-if=\"true\">\n          <strong>ngIf</strong>\n *        <my-toggle ng-ref=\"ngIfToggle\">ngIf Toggle</my-toggle>\n *        <div>ngIfToggle.isOpen(): {{ngIfToggle.isOpen() | json}}</div>\n *        <div>outerToggle.isOpen(): {{$ctrl.outerToggle.isOpen() | json}}</div>\n *     </div>\n *   </file>\n *   <file name=\"styles.css\">\n *     ul {\n *       list-style: none;\n *       padding-left: 0;\n *     }\n *\n *     li[ng-repeat] {\n *       background: lightgreen;\n *       padding: 8px;\n *       margin: 8px;\n *     }\n *\n *     [ng-if] {\n *       background: lightgrey;\n *       padding: 8px;\n *     }\n *\n *     my-root {\n *       background: lightgoldenrodyellow;\n *       padding: 8px;\n *       display: block;\n *     }\n *\n *     my-wrapper {\n *       background: lightsalmon;\n *       padding: 8px;\n *       display: block;\n *     }\n *\n *     my-toggle {\n *       background: lightblue;\n *       padding: 8px;\n *       display: block;\n *     }\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      var OuterToggle = function() {\n *        this.toggle = function() {\n *          element(by.buttonText('Outer Toggle')).click();\n *        };\n *        this.isOpen = function() {\n *          return element.all(by.binding('outerToggle.isOpen()')).first().getText();\n *        };\n *      };\n *      var NgRepeatToggle = function(i) {\n *        var parent = element.all(by.repeater('(index, value) in [1,2,3]')).get(i - 1);\n *        this.toggle = function() {\n *          element(by.buttonText('ngRepeat Toggle ' + i)).click();\n *        };\n *        this.isOpen = function() {\n *          return parent.element(by.binding('ngRepeatToggle.isOpen() | json')).getText();\n *        };\n *        this.isOuterOpen = function() {\n *          return parent.element(by.binding('outerToggle.isOpen() | json')).getText();\n *        };\n *      };\n *      var NgRepeatToggles = function() {\n *        var toggles = [1,2,3].map(function(i) { return new NgRepeatToggle(i); });\n *        this.forEach = function(fn) {\n *          toggles.forEach(fn);\n *        };\n *        this.isOuterOpen = function(i) {\n *          return toggles[i - 1].isOuterOpen();\n *        };\n *      };\n *      var NgIfToggle = function() {\n *        var parent = element(by.css('[ng-if]'));\n *        this.toggle = function() {\n *          element(by.buttonText('ngIf Toggle')).click();\n *        };\n *        this.isOpen = function() {\n *          return by.binding('ngIfToggle.isOpen() | json').getText();\n *        };\n *        this.isOuterOpen = function() {\n *          return parent.element(by.binding('outerToggle.isOpen() | json')).getText();\n *        };\n *      };\n *\n *      it('should toggle the outer toggle', function() {\n *        var outerToggle = new OuterToggle();\n *        expect(outerToggle.isOpen()).toEqual('outerToggle.isOpen(): false');\n *        outerToggle.toggle();\n *        expect(outerToggle.isOpen()).toEqual('outerToggle.isOpen(): true');\n *      });\n *\n *      it('should toggle all outer toggles', function() {\n *        var outerToggle = new OuterToggle();\n *        var repeatToggles = new NgRepeatToggles();\n *        var ifToggle = new NgIfToggle();\n *        expect(outerToggle.isOpen()).toEqual('outerToggle.isOpen(): false');\n *        expect(repeatToggles.isOuterOpen(1)).toEqual('outerToggle.isOpen(): false');\n *        expect(repeatToggles.isOuterOpen(2)).toEqual('outerToggle.isOpen(): false');\n *        expect(repeatToggles.isOuterOpen(3)).toEqual('outerToggle.isOpen(): false');\n *        expect(ifToggle.isOuterOpen()).toEqual('outerToggle.isOpen(): false');\n *        outerToggle.toggle();\n *        expect(outerToggle.isOpen()).toEqual('outerToggle.isOpen(): true');\n *        expect(repeatToggles.isOuterOpen(1)).toEqual('outerToggle.isOpen(): true');\n *        expect(repeatToggles.isOuterOpen(2)).toEqual('outerToggle.isOpen(): true');\n *        expect(repeatToggles.isOuterOpen(3)).toEqual('outerToggle.isOpen(): true');\n *        expect(ifToggle.isOuterOpen()).toEqual('outerToggle.isOpen(): true');\n *      });\n *\n *      it('should toggle each repeat iteration separately', function() {\n *        var repeatToggles = new NgRepeatToggles();\n *\n *        repeatToggles.forEach(function(repeatToggle) {\n *          expect(repeatToggle.isOpen()).toEqual('ngRepeatToggle.isOpen(): false');\n *          expect(repeatToggle.isOuterOpen()).toEqual('outerToggle.isOpen(): false');\n *          repeatToggle.toggle();\n *          expect(repeatToggle.isOpen()).toEqual('ngRepeatToggle.isOpen(): true');\n *          expect(repeatToggle.isOuterOpen()).toEqual('outerToggle.isOpen(): false');\n *        });\n *      });\n *   </file>\n * </example>\n *\n */\n\nvar ngRefMinErr = minErr('ngRef');\n\nvar ngRefDirective = ['$parse', function($parse) {\n  return {\n    priority: -1, // Needed for compatibility with element transclusion on the same element\n    restrict: 'A',\n    compile: function(tElement, tAttrs) {\n      // Get the expected controller name, converts <data-some-thing> into \"someThing\"\n      var controllerName = directiveNormalize(nodeName_(tElement));\n\n      // Get the expression for value binding\n      var getter = $parse(tAttrs.ngRef);\n      var setter = getter.assign || function() {\n        throw ngRefMinErr('nonassign', 'Expression in ngRef=\"{0}\" is non-assignable!', tAttrs.ngRef);\n      };\n\n      return function(scope, element, attrs) {\n        var refValue;\n\n        if (attrs.hasOwnProperty('ngRefRead')) {\n          if (attrs.ngRefRead === '$element') {\n            refValue = element;\n          } else {\n            refValue = element.data('$' + attrs.ngRefRead + 'Controller');\n\n            if (!refValue) {\n              throw ngRefMinErr(\n                'noctrl',\n                'The controller for ngRefRead=\"{0}\" could not be found on ngRef=\"{1}\"',\n                attrs.ngRefRead,\n                tAttrs.ngRef\n              );\n            }\n          }\n        } else {\n          refValue = element.data('$' + controllerName + 'Controller');\n        }\n\n        refValue = refValue || element;\n\n        setter(scope, refValue);\n\n        // when the element is removed, remove it (nullify it)\n        element.on('$destroy', function() {\n          // only remove it if value has not changed,\n          // because animations (and other procedures) may duplicate elements\n          if (getter(scope) === refValue) {\n            setter(scope, null);\n          }\n        });\n      };\n    }\n  };\n}];\n\n/* exported ngRepeatDirective */\n\n/**\n * @ngdoc directive\n * @name ngRepeat\n * @multiElement\n * @restrict A\n *\n * @description\n * The `ngRepeat` directive instantiates a template once per item from a collection. Each template\n * instance gets its own scope, where the given loop variable is set to the current collection item,\n * and `$index` is set to the item index or key.\n *\n * Special properties are exposed on the local scope of each template instance, including:\n *\n * | Variable  | Type            | Details                                                                     |\n * |-----------|-----------------|-----------------------------------------------------------------------------|\n * | `$index`  | {@type number}  | iterator offset of the repeated element (0..length-1)                       |\n * | `$first`  | {@type boolean} | true if the repeated element is first in the iterator.                      |\n * | `$middle` | {@type boolean} | true if the repeated element is between the first and last in the iterator. |\n * | `$last`   | {@type boolean} | true if the repeated element is last in the iterator.                       |\n * | `$even`   | {@type boolean} | true if the iterator position `$index` is even (otherwise false).           |\n * | `$odd`    | {@type boolean} | true if the iterator position `$index` is odd (otherwise false).            |\n *\n * <div class=\"alert alert-info\">\n *   Creating aliases for these properties is possible with {@link ng.directive:ngInit `ngInit`}.\n *   This may be useful when, for instance, nesting ngRepeats.\n * </div>\n *\n *\n * ## Iterating over object properties\n *\n * It is possible to get `ngRepeat` to iterate over the properties of an object using the following\n * syntax:\n *\n * ```js\n * <div ng-repeat=\"(key, value) in myObj\"> ... </div>\n * ```\n *\n * However, there are a few limitations compared to array iteration:\n *\n * - The JavaScript specification does not define the order of keys\n *   returned for an object, so AngularJS relies on the order returned by the browser\n *   when running `for key in myObj`. Browsers generally follow the strategy of providing\n *   keys in the order in which they were defined, although there are exceptions when keys are deleted\n *   and reinstated. See the\n *   [MDN page on `delete` for more info](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete#Cross-browser_notes).\n *\n * - `ngRepeat` will silently *ignore* object keys starting with `$`, because\n *   it's a prefix used by AngularJS for public (`$`) and private (`$$`) properties.\n *\n * - The built-in filters {@link ng.orderBy orderBy} and {@link ng.filter filter} do not work with\n *   objects, and will throw an error if used with one.\n *\n * If you are hitting any of these limitations, the recommended workaround is to convert your object into an array\n * that is sorted into the order that you prefer before providing it to `ngRepeat`. You could\n * do this with a filter such as [toArrayFilter](http://ngmodules.org/modules/angular-toArrayFilter)\n * or implement a `$watch` on the object yourself.\n *\n *\n * ## Tracking and Duplicates\n *\n * `ngRepeat` uses {@link $rootScope.Scope#$watchCollection $watchCollection} to detect changes in\n * the collection. When a change happens, `ngRepeat` then makes the corresponding changes to the DOM:\n *\n * * When an item is added, a new instance of the template is added to the DOM.\n * * When an item is removed, its template instance is removed from the DOM.\n * * When items are reordered, their respective templates are reordered in the DOM.\n *\n * To minimize creation of DOM elements, `ngRepeat` uses a function\n * to \"keep track\" of all items in the collection and their corresponding DOM elements.\n * For example, if an item is added to the collection, `ngRepeat` will know that all other items\n * already have DOM elements, and will not re-render them.\n *\n * All different types of tracking functions, their syntax, and their support for duplicate\n * items in collections can be found in the\n * {@link ngRepeat#ngRepeat-arguments ngRepeat expression description}.\n *\n * <div class=\"alert alert-success\">\n * **Best Practice:** If you are working with objects that have a unique identifier property, you\n * should track by this identifier instead of the object instance,\n * e.g. `item in items track by item.id`.\n * Should you reload your data later, `ngRepeat` will not have to rebuild the DOM elements for items\n * it has already rendered, even if the JavaScript objects in the collection have been substituted\n * for new ones. For large collections, this significantly improves rendering performance.\n * </div>\n *\n * ### Effects of DOM Element re-use\n *\n * When DOM elements are re-used, ngRepeat updates the scope for the element, which will\n * automatically update any active bindings on the template. However, other\n * functionality will not be updated, because the element is not re-created:\n *\n * - Directives are not re-compiled\n * - {@link guide/expression#one-time-binding one-time expressions} on the repeated template are not\n * updated if they have stabilized.\n *\n * The above affects all kinds of element re-use due to tracking, but may be especially visible\n * when tracking by `$index` due to the way ngRepeat re-uses elements.\n *\n * The following example shows the effects of different actions with tracking:\n\n  <example module=\"ngRepeat\" name=\"ngRepeat-tracking\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"script.js\">\n      angular.module('ngRepeat', ['ngAnimate']).controller('repeatController', function($scope) {\n        var friends = [\n          {name:'John', age:25},\n          {name:'Mary', age:40},\n          {name:'Peter', age:85}\n        ];\n\n        $scope.removeFirst = function() {\n          $scope.friends.shift();\n        };\n\n        $scope.updateAge = function() {\n          $scope.friends.forEach(function(el) {\n            el.age = el.age + 5;\n          });\n        };\n\n        $scope.copy = function() {\n          $scope.friends = angular.copy($scope.friends);\n        };\n\n        $scope.reset = function() {\n          $scope.friends = angular.copy(friends);\n        };\n\n        $scope.reset();\n      });\n    </file>\n    <file name=\"index.html\">\n      <div ng-controller=\"repeatController\">\n        <ol>\n          <li>When you click \"Update Age\", only the first list updates the age, because all others have\n          a one-time binding on the age property. If you then click \"Copy\", the current friend list\n          is copied, and now the second list updates the age, because the identity of the collection items\n          has changed and the list must be re-rendered. The 3rd and 4th list stay the same, because all the\n          items are already known according to their tracking functions.\n          </li>\n          <li>When you click \"Remove First\", the 4th list has the wrong age on both remaining items. This is\n          due to tracking by $index: when the first collection item is removed, ngRepeat reuses the first\n          DOM element for the new first collection item, and so on. Since the age property is one-time\n          bound, the value remains from the collection item which was previously at this index.\n          </li>\n        </ol>\n\n        <button ng-click=\"removeFirst()\">Remove First</button>\n        <button ng-click=\"updateAge()\">Update Age</button>\n        <button ng-click=\"copy()\">Copy</button>\n        <br><button ng-click=\"reset()\">Reset List</button>\n        <br>\n        <code>track by $id(friend)</code> (default):\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends\">\n            {{friend.name}} is {{friend.age}} years old.\n          </li>\n        </ul>\n        <code>track by $id(friend)</code> (default), with age one-time binding:\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends\">\n            {{friend.name}} is {{::friend.age}} years old.\n          </li>\n        </ul>\n        <code>track by friend.name</code>, with age one-time binding:\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends track by friend.name\">\n            {{friend.name}}  is {{::friend.age}} years old.\n          </li>\n        </ul>\n        <code>track by $index</code>, with age one-time binding:\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends track by $index\">\n            {{friend.name}} is {{::friend.age}} years old.\n          </li>\n        </ul>\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .example-animate-container {\n        background:white;\n        border:1px solid black;\n        list-style:none;\n        margin:0;\n        padding:0 10px;\n      }\n\n      .animate-repeat {\n        line-height:30px;\n        list-style:none;\n        box-sizing:border-box;\n      }\n\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter,\n      .animate-repeat.ng-leave {\n        transition:all linear 0.5s;\n      }\n\n      .animate-repeat.ng-leave.ng-leave-active,\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter {\n        opacity:0;\n        max-height:0;\n      }\n\n      .animate-repeat.ng-leave,\n      .animate-repeat.ng-move.ng-move-active,\n      .animate-repeat.ng-enter.ng-enter-active {\n        opacity:1;\n        max-height:30px;\n      }\n    </file>\n  </example>\n\n *\n * ## Special repeat start and end points\n * To repeat a series of elements instead of just one parent element, ngRepeat (as well as other ng directives) supports extending\n * the range of the repeater by defining explicit start and end points by using **ng-repeat-start** and **ng-repeat-end** respectively.\n * The **ng-repeat-start** directive works the same as **ng-repeat**, but will repeat all the HTML code (including the tag it's defined on)\n * up to and including the ending HTML tag where **ng-repeat-end** is placed.\n *\n * The example below makes use of this feature:\n * ```html\n *   <header ng-repeat-start=\"item in items\">\n *     Header {{ item }}\n *   </header>\n *   <div class=\"body\">\n *     Body {{ item }}\n *   </div>\n *   <footer ng-repeat-end>\n *     Footer {{ item }}\n *   </footer>\n * ```\n *\n * And with an input of {@type ['A','B']} for the items variable in the example above, the output will evaluate to:\n * ```html\n *   <header>\n *     Header A\n *   </header>\n *   <div class=\"body\">\n *     Body A\n *   </div>\n *   <footer>\n *     Footer A\n *   </footer>\n *   <header>\n *     Header B\n *   </header>\n *   <div class=\"body\">\n *     Body B\n *   </div>\n *   <footer>\n *     Footer B\n *   </footer>\n * ```\n *\n * The custom start and end points for ngRepeat also support all other HTML directive syntax flavors provided in AngularJS (such\n * as **data-ng-repeat-start**, **x-ng-repeat-start** and **ng:repeat-start**).\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter} | when a new item is added to the list or when an item is revealed after a filter |\n * | {@link ng.$animate#leave leave} | when an item is removed from the list or when an item is filtered out |\n * | {@link ng.$animate#move move } | when an adjacent item is filtered out causing a reorder or when the item contents are reordered |\n *\n * See the example below for defining CSS animations with ngRepeat.\n *\n * @element ANY\n * @scope\n * @priority 1000\n * @param {repeat_expression} ngRepeat The expression indicating how to enumerate a collection. These\n *   formats are currently supported:\n *\n *   * `variable in expression` – where variable is the user defined loop variable and `expression`\n *     is a scope expression giving the collection to enumerate.\n *\n *     For example: `album in artist.albums`.\n *\n *   * `(key, value) in expression` – where `key` and `value` can be any user defined identifiers,\n *     and `expression` is the scope expression giving the collection to enumerate.\n *\n *     For example: `(name, age) in {'adam':10, 'amalie':12}`.\n *\n *   * `variable in expression track by tracking_expression` – You can also provide an optional tracking expression\n *     which can be used to associate the objects in the collection with the DOM elements. If no tracking expression\n *     is specified, ng-repeat associates elements by identity. It is an error to have\n *     more than one tracking expression value resolve to the same key. (This would mean that two distinct objects are\n *     mapped to the same DOM element, which is not possible.)\n *\n *     *Default tracking: $id()*: `item in items` is equivalent to `item in items track by $id(item)`.\n *     This implies that the DOM elements will be associated by item identity in the collection.\n *\n *     The built-in `$id()` function can be used to assign a unique\n *     `$$hashKey` property to each item in the collection. This property is then used as a key to associated DOM elements\n *     with the corresponding item in the collection by identity. Moving the same object would move\n *     the DOM element in the same way in the DOM.\n *     Note that the default id function does not support duplicate primitive values (`number`, `string`),\n *     but supports duplictae non-primitive values (`object`) that are *equal* in shape.\n *\n *     *Custom Expression*: It is possible to use any AngularJS expression to compute the tracking\n *     id, for example with a function, or using a property on the collection items.\n *     `item in items track by item.id` is a typical pattern when the items have a unique identifier,\n *     e.g. database id. In this case the object identity does not matter. Two objects are considered\n *     equivalent as long as their `id` property is same.\n *     Tracking by unique identifier is the most performant way and should be used whenever possible.\n *\n *     *$index*: This special property tracks the collection items by their index, and\n *     re-uses the DOM elements that match that index, e.g. `item in items track by $index`. This can\n *     be used for a performance improvement if no unique identfier is available and the identity of\n *     the collection items cannot be easily computed. It also allows duplicates.\n *\n *     <div class=\"alert alert-warning\">\n *       <strong>Note:</strong> Re-using DOM elements can have unforeseen effects. Read the\n *       {@link ngRepeat#tracking-and-duplicates section on tracking and duplicates} for\n *       more info.\n *     </div>\n *\n *     <div class=\"alert alert-warning\">\n *       <strong>Note:</strong> the `track by` expression must come last - after any filters, and the alias expression:\n *       `item in items | filter:searchText as results  track by item.id`\n *     </div>\n *\n *   * `variable in expression as alias_expression` – You can also provide an optional alias expression which will then store the\n *     intermediate results of the repeater after the filters have been applied. Typically this is used to render a special message\n *     when a filter is active on the repeater, but the filtered result set is empty.\n *\n *     For example: `item in items | filter:x as results` will store the fragment of the repeated items as `results`, but only after\n *     the items have been processed through the filter.\n *\n *     Please note that `as [variable name]` is not an operator but rather a part of ngRepeat\n *     micro-syntax so it can be used only after all filters (and not as operator, inside an expression).\n *\n *     For example: `item in items | filter : x | orderBy : order | limitTo : limit as results track by item.id` .\n *\n * @example\n * This example uses `ngRepeat` to display a list of people. A filter is used to restrict the displayed\n * results by name or by age. New (entering) and removed (leaving) items are animated.\n  <example module=\"ngRepeat\" name=\"ngRepeat\" deps=\"angular-animate.js\" animations=\"true\">\n    <file name=\"index.html\">\n      <div ng-controller=\"repeatController\">\n        I have {{friends.length}} friends. They are:\n        <input type=\"search\" ng-model=\"q\" placeholder=\"filter friends...\" aria-label=\"filter friends\" />\n        <ul class=\"example-animate-container\">\n          <li class=\"animate-repeat\" ng-repeat=\"friend in friends | filter:q as results track by friend.name\">\n            [{{$index + 1}}] {{friend.name}} who is {{friend.age}} years old.\n          </li>\n          <li class=\"animate-repeat\" ng-if=\"results.length === 0\">\n            <strong>No results found...</strong>\n          </li>\n        </ul>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngRepeat', ['ngAnimate']).controller('repeatController', function($scope) {\n        $scope.friends = [\n          {name:'John', age:25, gender:'boy'},\n          {name:'Jessie', age:30, gender:'girl'},\n          {name:'Johanna', age:28, gender:'girl'},\n          {name:'Joy', age:15, gender:'girl'},\n          {name:'Mary', age:28, gender:'girl'},\n          {name:'Peter', age:95, gender:'boy'},\n          {name:'Sebastian', age:50, gender:'boy'},\n          {name:'Erika', age:27, gender:'girl'},\n          {name:'Patrick', age:40, gender:'boy'},\n          {name:'Samantha', age:60, gender:'girl'}\n        ];\n      });\n    </file>\n    <file name=\"animations.css\">\n      .example-animate-container {\n        background:white;\n        border:1px solid black;\n        list-style:none;\n        margin:0;\n        padding:0 10px;\n      }\n\n      .animate-repeat {\n        line-height:30px;\n        list-style:none;\n        box-sizing:border-box;\n      }\n\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter,\n      .animate-repeat.ng-leave {\n        transition:all linear 0.5s;\n      }\n\n      .animate-repeat.ng-leave.ng-leave-active,\n      .animate-repeat.ng-move,\n      .animate-repeat.ng-enter {\n        opacity:0;\n        max-height:0;\n      }\n\n      .animate-repeat.ng-leave,\n      .animate-repeat.ng-move.ng-move-active,\n      .animate-repeat.ng-enter.ng-enter-active {\n        opacity:1;\n        max-height:30px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var friends = element.all(by.repeater('friend in friends'));\n\n      it('should render initial data set', function() {\n        expect(friends.count()).toBe(10);\n        expect(friends.get(0).getText()).toEqual('[1] John who is 25 years old.');\n        expect(friends.get(1).getText()).toEqual('[2] Jessie who is 30 years old.');\n        expect(friends.last().getText()).toEqual('[10] Samantha who is 60 years old.');\n        expect(element(by.binding('friends.length')).getText())\n            .toMatch(\"I have 10 friends. They are:\");\n      });\n\n       it('should update repeater when filter predicate changes', function() {\n         expect(friends.count()).toBe(10);\n\n         element(by.model('q')).sendKeys('ma');\n\n         expect(friends.count()).toBe(2);\n         expect(friends.get(0).getText()).toEqual('[1] Mary who is 28 years old.');\n         expect(friends.last().getText()).toEqual('[2] Samantha who is 60 years old.');\n       });\n      </file>\n    </example>\n */\nvar ngRepeatDirective = ['$parse', '$animate', '$compile', function($parse, $animate, $compile) {\n  var NG_REMOVED = '$$NG_REMOVED';\n  var ngRepeatMinErr = minErr('ngRepeat');\n\n  var updateScope = function(scope, index, valueIdentifier, value, keyIdentifier, key, arrayLength) {\n    // TODO(perf): generate setters to shave off ~40ms or 1-1.5%\n    scope[valueIdentifier] = value;\n    if (keyIdentifier) scope[keyIdentifier] = key;\n    scope.$index = index;\n    scope.$first = (index === 0);\n    scope.$last = (index === (arrayLength - 1));\n    scope.$middle = !(scope.$first || scope.$last);\n    // eslint-disable-next-line no-bitwise\n    scope.$odd = !(scope.$even = (index & 1) === 0);\n  };\n\n  var getBlockStart = function(block) {\n    return block.clone[0];\n  };\n\n  var getBlockEnd = function(block) {\n    return block.clone[block.clone.length - 1];\n  };\n\n  var trackByIdArrayFn = function($scope, key, value) {\n    return hashKey(value);\n  };\n\n  var trackByIdObjFn = function($scope, key) {\n    return key;\n  };\n\n  return {\n    restrict: 'A',\n    multiElement: true,\n    transclude: 'element',\n    priority: 1000,\n    terminal: true,\n    $$tlb: true,\n    compile: function ngRepeatCompile($element, $attr) {\n      var expression = $attr.ngRepeat;\n      var ngRepeatEndComment = $compile.$$createComment('end ngRepeat', expression);\n\n      var match = expression.match(/^\\s*([\\s\\S]+?)\\s+in\\s+([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?(?:\\s+track\\s+by\\s+([\\s\\S]+?))?\\s*$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iexp', 'Expected expression in form of \\'_item_ in _collection_[ track by _id_]\\' but got \\'{0}\\'.',\n            expression);\n      }\n\n      var lhs = match[1];\n      var rhs = match[2];\n      var aliasAs = match[3];\n      var trackByExp = match[4];\n\n      match = lhs.match(/^(?:(\\s*[$\\w]+)|\\(\\s*([$\\w]+)\\s*,\\s*([$\\w]+)\\s*\\))$/);\n\n      if (!match) {\n        throw ngRepeatMinErr('iidexp', '\\'_item_\\' in \\'_item_ in _collection_\\' should be an identifier or \\'(_key_, _value_)\\' expression, but got \\'{0}\\'.',\n            lhs);\n      }\n      var valueIdentifier = match[3] || match[1];\n      var keyIdentifier = match[2];\n\n      if (aliasAs && (!/^[$a-zA-Z_][$a-zA-Z0-9_]*$/.test(aliasAs) ||\n          /^(null|undefined|this|\\$index|\\$first|\\$middle|\\$last|\\$even|\\$odd|\\$parent|\\$root|\\$id)$/.test(aliasAs))) {\n        throw ngRepeatMinErr('badident', 'alias \\'{0}\\' is invalid --- must be a valid JS identifier which is not a reserved name.',\n          aliasAs);\n      }\n\n      var trackByIdExpFn;\n\n      if (trackByExp) {\n        var hashFnLocals = {$id: hashKey};\n        var trackByExpGetter = $parse(trackByExp);\n\n        trackByIdExpFn = function($scope, key, value, index) {\n          // assign key, value, and $index to the locals so that they can be used in hash functions\n          if (keyIdentifier) hashFnLocals[keyIdentifier] = key;\n          hashFnLocals[valueIdentifier] = value;\n          hashFnLocals.$index = index;\n          return trackByExpGetter($scope, hashFnLocals);\n        };\n      }\n\n      return function ngRepeatLink($scope, $element, $attr, ctrl, $transclude) {\n\n        // Store a list of elements from previous run. This is a hash where key is the item from the\n        // iterator, and the value is objects with following properties.\n        //   - scope: bound scope\n        //   - clone: previous element.\n        //   - index: position\n        //\n        // We are using no-proto object so that we don't need to guard against inherited props via\n        // hasOwnProperty.\n        var lastBlockMap = createMap();\n\n        //watch props\n        $scope.$watchCollection(rhs, function ngRepeatAction(collection) {\n          var index, length,\n              previousNode = $element[0],     // node that cloned nodes should be inserted after\n                                              // initialized to the comment node anchor\n              nextNode,\n              // Same as lastBlockMap but it has the current state. It will become the\n              // lastBlockMap on the next iteration.\n              nextBlockMap = createMap(),\n              collectionLength,\n              key, value, // key/value of iteration\n              trackById,\n              trackByIdFn,\n              collectionKeys,\n              block,       // last object information {scope, element, id}\n              nextBlockOrder,\n              elementsToRemove;\n\n          if (aliasAs) {\n            $scope[aliasAs] = collection;\n          }\n\n          if (isArrayLike(collection)) {\n            collectionKeys = collection;\n            trackByIdFn = trackByIdExpFn || trackByIdArrayFn;\n          } else {\n            trackByIdFn = trackByIdExpFn || trackByIdObjFn;\n            // if object, extract keys, in enumeration order, unsorted\n            collectionKeys = [];\n            for (var itemKey in collection) {\n              if (hasOwnProperty.call(collection, itemKey) && itemKey.charAt(0) !== '$') {\n                collectionKeys.push(itemKey);\n              }\n            }\n          }\n\n          collectionLength = collectionKeys.length;\n          nextBlockOrder = new Array(collectionLength);\n\n          // locate existing items\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            trackById = trackByIdFn($scope, key, value, index);\n            if (lastBlockMap[trackById]) {\n              // found previously seen block\n              block = lastBlockMap[trackById];\n              delete lastBlockMap[trackById];\n              nextBlockMap[trackById] = block;\n              nextBlockOrder[index] = block;\n            } else if (nextBlockMap[trackById]) {\n              // if collision detected. restore lastBlockMap and throw an error\n              forEach(nextBlockOrder, function(block) {\n                if (block && block.scope) lastBlockMap[block.id] = block;\n              });\n              throw ngRepeatMinErr('dupes',\n                  'Duplicates in a repeater are not allowed. Use \\'track by\\' expression to specify unique keys. Repeater: {0}, Duplicate key: {1}, Duplicate value: {2}',\n                  expression, trackById, value);\n            } else {\n              // new never before seen block\n              nextBlockOrder[index] = {id: trackById, scope: undefined, clone: undefined};\n              nextBlockMap[trackById] = true;\n            }\n          }\n\n          // Clear the value property from the hashFnLocals object to prevent a reference to the last value\n          // being leaked into the ngRepeatCompile function scope\n          if (hashFnLocals) {\n            hashFnLocals[valueIdentifier] = undefined;\n          }\n\n          // remove leftover items\n          for (var blockKey in lastBlockMap) {\n            block = lastBlockMap[blockKey];\n            elementsToRemove = getBlockNodes(block.clone);\n            $animate.leave(elementsToRemove);\n            if (elementsToRemove[0].parentNode) {\n              // if the element was not removed yet because of pending animation, mark it as deleted\n              // so that we can ignore it later\n              for (index = 0, length = elementsToRemove.length; index < length; index++) {\n                elementsToRemove[index][NG_REMOVED] = true;\n              }\n            }\n            block.scope.$destroy();\n          }\n\n          // we are not using forEach for perf reasons (trying to avoid #call)\n          for (index = 0; index < collectionLength; index++) {\n            key = (collection === collectionKeys) ? index : collectionKeys[index];\n            value = collection[key];\n            block = nextBlockOrder[index];\n\n            if (block.scope) {\n              // if we have already seen this object, then we need to reuse the\n              // associated scope/element\n\n              nextNode = previousNode;\n\n              // skip nodes that are already pending removal via leave animation\n              do {\n                nextNode = nextNode.nextSibling;\n              } while (nextNode && nextNode[NG_REMOVED]);\n\n              if (getBlockStart(block) !== nextNode) {\n                // existing item which got moved\n                $animate.move(getBlockNodes(block.clone), null, previousNode);\n              }\n              previousNode = getBlockEnd(block);\n              updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n            } else {\n              // new item which we don't know about\n              $transclude(function ngRepeatTransclude(clone, scope) {\n                block.scope = scope;\n                // http://jsperf.com/clone-vs-createcomment\n                var endNode = ngRepeatEndComment.cloneNode(false);\n                clone[clone.length++] = endNode;\n\n                $animate.enter(clone, null, previousNode);\n                previousNode = endNode;\n                // Note: We only need the first/last node of the cloned nodes.\n                // However, we need to keep the reference to the jqlite wrapper as it might be changed later\n                // by a directive with templateUrl when its template arrives.\n                block.clone = clone;\n                nextBlockMap[block.id] = block;\n                updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);\n              });\n            }\n          }\n          lastBlockMap = nextBlockMap;\n        });\n      };\n    }\n  };\n}];\n\nvar NG_HIDE_CLASS = 'ng-hide';\nvar NG_HIDE_IN_PROGRESS_CLASS = 'ng-hide-animate';\n/**\n * @ngdoc directive\n * @name ngShow\n * @multiElement\n *\n * @description\n * The `ngShow` directive shows or hides the given HTML element based on the expression provided to\n * the `ngShow` attribute.\n *\n * The element is shown or hidden by removing or adding the `.ng-hide` CSS class onto the element.\n * The `.ng-hide` CSS class is predefined in AngularJS and sets the display style to none (using an\n * `!important` flag). For CSP mode please add `angular-csp.css` to your HTML file (see\n * {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is visible) -->\n * <div ng-show=\"myValue\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is hidden) -->\n * <div ng-show=\"myValue\" class=\"ng-hide\"></div>\n * ```\n *\n * When the `ngShow` expression evaluates to a falsy value then the `.ng-hide` CSS class is added\n * to the class attribute on the element causing it to become hidden. When truthy, the `.ng-hide`\n * CSS class is removed from the element causing the element not to appear hidden.\n *\n * ## Why is `!important` used?\n *\n * You may be wondering why `!important` is used for the `.ng-hide` CSS class. This is because the\n * `.ng-hide` selector can be easily overridden by heavier selectors. For example, something as\n * simple as changing the display style on a HTML list item would make hidden elements appear\n * visible. This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using `!important`, the show and hide behavior will work as expected despite any clash between\n * CSS selector specificity (when `!important` isn't used with any conflicting styles). If a\n * developer chooses to override the styling to change how to hide an element then it is just a\n * matter of using `!important` in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none !important`. If you\n * wish to change the hide behavior with `ngShow`/`ngHide`, you can simply overwrite the styles for\n * the `.ng-hide` CSS class. Note that the selector that needs to be used is actually\n * `.ng-hide:not(.ng-hide-animate)` to cope with extra animation classes that can be added.\n *\n * ```css\n * .ng-hide:not(.ng-hide-animate) {\n *   /&#42; These are just alternative ways of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override anything in CSS and the animations will work around the\n * display style.\n *\n * @animations\n * | Animation                                           | Occurs                                                                                                        |\n * |-----------------------------------------------------|---------------------------------------------------------------------------------------------------------------|\n * | {@link $animate#addClass addClass} `.ng-hide`       | After the `ngShow` expression evaluates to a non truthy value and just before the contents are set to hidden. |\n * | {@link $animate#removeClass removeClass} `.ng-hide` | After the `ngShow` expression evaluates to a truthy value and just before contents are set to visible.        |\n *\n * Animations in `ngShow`/`ngHide` work with the show and hide events that are triggered when the\n * directive expression is true and false. This system works like the animation system present with\n * `ngClass` except that you must also include the `!important` flag to override the display\n * property so that the elements are not actually hidden during the animation.\n *\n * ```css\n * /&#42; A working example can be found at the bottom of this page. &#42;/\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition: all 0.5s linear;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3, there is no need to change the display property\n * to block during animation states - ngAnimate will automatically handle the style toggling for you.\n *\n * @element ANY\n * @param {expression} ngShow If the {@link guide/expression expression} is truthy/falsy then the\n *                            element is shown/hidden respectively.\n *\n * @example\n * A simple example, animating the element's opacity:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-show-simple\">\n    <file name=\"index.html\">\n      Show: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngShow\"><br />\n      <div class=\"check-element animate-show-hide\" ng-show=\"checked\">\n        I show up when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .animate-show-hide.ng-hide {\n        opacity: 0;\n      }\n\n      .animate-show-hide.ng-hide-add,\n      .animate-show-hide.ng-hide-remove {\n        transition: all linear 0.5s;\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngShow', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(false);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(true);\n      });\n    </file>\n  </example>\n *\n * <hr />\n * @example\n * A more complex example, featuring different show/hide animations:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-show-complex\">\n    <file name=\"index.html\">\n      Show: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngShow\"><br />\n      <div class=\"check-element funky-show-hide\" ng-show=\"checked\">\n        I show up when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      body {\n        overflow: hidden;\n        perspective: 1000px;\n      }\n\n      .funky-show-hide.ng-hide-add {\n        transform: rotateZ(0);\n        transform-origin: right;\n        transition: all 0.5s ease-in-out;\n      }\n\n      .funky-show-hide.ng-hide-add.ng-hide-add-active {\n        transform: rotateZ(-135deg);\n      }\n\n      .funky-show-hide.ng-hide-remove {\n        transform: rotateY(90deg);\n        transform-origin: left;\n        transition: all 0.5s ease;\n      }\n\n      .funky-show-hide.ng-hide-remove.ng-hide-remove-active {\n        transform: rotateY(0);\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngShow', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(false);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(true);\n      });\n    </file>\n  </example>\n *\n * @knownIssue\n *\n * ### Flickering when using ngShow to toggle between elements\n *\n * When using {@link ngShow} and / or {@link ngHide} to toggle between elements, it can\n * happen that both the element to show and the element to hide are visible for a very short time.\n *\n * This usually happens when the {@link ngAnimate ngAnimate module} is included, but no actual animations\n * are defined for {@link ngShow} / {@link ngHide}. Internet Explorer is affected more often than\n * other browsers.\n *\n * There are several way to mitigate this problem:\n *\n * - {@link guide/animations#how-to-selectively-enable-disable-and-skip-animations Disable animations on the affected elements}.\n * - Use {@link ngIf} or {@link ngSwitch} instead of {@link ngShow} / {@link ngHide}.\n * - Use the special CSS selector `ng-hide.ng-hide-animate` to set `{display: none}` or similar on the affected elements.\n * - Use `ng-class=\"{'ng-hide': expression}` instead of instead of {@link ngShow} / {@link ngHide}.\n * - Define an animation on the affected elements.\n */\nvar ngShowDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngShow, function ngShowWatchAction(value) {\n        // we're adding a temporary, animation-specific class for ng-hide since this way\n        // we can control when the element is actually displayed on screen without having\n        // to have a global/greedy CSS selector that breaks when other animations are run.\n        // Read: https://github.com/angular/angular.js/issues/9103#issuecomment-58335845\n        $animate[value ? 'removeClass' : 'addClass'](element, NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n\n/**\n * @ngdoc directive\n * @name ngHide\n * @multiElement\n *\n * @description\n * The `ngHide` directive shows or hides the given HTML element based on the expression provided to\n * the `ngHide` attribute.\n *\n * The element is shown or hidden by removing or adding the `.ng-hide` CSS class onto the element.\n * The `.ng-hide` CSS class is predefined in AngularJS and sets the display style to none (using an\n * `!important` flag). For CSP mode please add `angular-csp.css` to your HTML file (see\n * {@link ng.directive:ngCsp ngCsp}).\n *\n * ```html\n * <!-- when $scope.myValue is truthy (element is hidden) -->\n * <div ng-hide=\"myValue\" class=\"ng-hide\"></div>\n *\n * <!-- when $scope.myValue is falsy (element is visible) -->\n * <div ng-hide=\"myValue\"></div>\n * ```\n *\n * When the `ngHide` expression evaluates to a truthy value then the `.ng-hide` CSS class is added\n * to the class attribute on the element causing it to become hidden. When falsy, the `.ng-hide`\n * CSS class is removed from the element causing the element not to appear hidden.\n *\n * ## Why is `!important` used?\n *\n * You may be wondering why `!important` is used for the `.ng-hide` CSS class. This is because the\n * `.ng-hide` selector can be easily overridden by heavier selectors. For example, something as\n * simple as changing the display style on a HTML list item would make hidden elements appear\n * visible. This also becomes a bigger issue when dealing with CSS frameworks.\n *\n * By using `!important`, the show and hide behavior will work as expected despite any clash between\n * CSS selector specificity (when `!important` isn't used with any conflicting styles). If a\n * developer chooses to override the styling to change how to hide an element then it is just a\n * matter of using `!important` in their own CSS code.\n *\n * ### Overriding `.ng-hide`\n *\n * By default, the `.ng-hide` class will style the element with `display: none !important`. If you\n * wish to change the hide behavior with `ngShow`/`ngHide`, you can simply overwrite the styles for\n * the `.ng-hide` CSS class. Note that the selector that needs to be used is actually\n * `.ng-hide:not(.ng-hide-animate)` to cope with extra animation classes that can be added.\n *\n * ```css\n * .ng-hide:not(.ng-hide-animate) {\n *   /&#42; These are just alternative ways of hiding an element &#42;/\n *   display: block!important;\n *   position: absolute;\n *   top: -9999px;\n *   left: -9999px;\n * }\n * ```\n *\n * By default you don't need to override in CSS anything and the animations will work around the\n * display style.\n *\n * @animations\n * | Animation                                           | Occurs                                                                                                     |\n * |-----------------------------------------------------|------------------------------------------------------------------------------------------------------------|\n * | {@link $animate#addClass addClass} `.ng-hide`       | After the `ngHide` expression evaluates to a truthy value and just before the contents are set to hidden.  |\n * | {@link $animate#removeClass removeClass} `.ng-hide` | After the `ngHide` expression evaluates to a non truthy value and just before contents are set to visible. |\n *\n * Animations in `ngShow`/`ngHide` work with the show and hide events that are triggered when the\n * directive expression is true and false. This system works like the animation system present with\n * `ngClass` except that you must also include the `!important` flag to override the display\n * property so that the elements are not actually hidden during the animation.\n *\n * ```css\n * /&#42; A working example can be found at the bottom of this page. &#42;/\n * .my-element.ng-hide-add, .my-element.ng-hide-remove {\n *   transition: all 0.5s linear;\n * }\n *\n * .my-element.ng-hide-add { ... }\n * .my-element.ng-hide-add.ng-hide-add-active { ... }\n * .my-element.ng-hide-remove { ... }\n * .my-element.ng-hide-remove.ng-hide-remove-active { ... }\n * ```\n *\n * Keep in mind that, as of AngularJS version 1.3, there is no need to change the display property\n * to block during animation states - ngAnimate will automatically handle the style toggling for you.\n *\n * @element ANY\n * @param {expression} ngHide If the {@link guide/expression expression} is truthy/falsy then the\n *                            element is hidden/shown respectively.\n *\n * @example\n * A simple example, animating the element's opacity:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-hide-simple\">\n    <file name=\"index.html\">\n      Hide: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngHide\"><br />\n      <div class=\"check-element animate-show-hide\" ng-hide=\"checked\">\n        I hide when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .animate-show-hide.ng-hide {\n        opacity: 0;\n      }\n\n      .animate-show-hide.ng-hide-add,\n      .animate-show-hide.ng-hide-remove {\n        transition: all linear 0.5s;\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngHide', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(true);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(false);\n      });\n    </file>\n  </example>\n *\n * <hr />\n * @example\n * A more complex example, featuring different show/hide animations:\n *\n  <example module=\"ngAnimate\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-hide-complex\">\n    <file name=\"index.html\">\n      Hide: <input type=\"checkbox\" ng-model=\"checked\" aria-label=\"Toggle ngHide\"><br />\n      <div class=\"check-element funky-show-hide\" ng-hide=\"checked\">\n        I hide when your checkbox is checked.\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      body {\n        overflow: hidden;\n        perspective: 1000px;\n      }\n\n      .funky-show-hide.ng-hide-add {\n        transform: rotateZ(0);\n        transform-origin: right;\n        transition: all 0.5s ease-in-out;\n      }\n\n      .funky-show-hide.ng-hide-add.ng-hide-add-active {\n        transform: rotateZ(-135deg);\n      }\n\n      .funky-show-hide.ng-hide-remove {\n        transform: rotateY(90deg);\n        transform-origin: left;\n        transition: all 0.5s ease;\n      }\n\n      .funky-show-hide.ng-hide-remove.ng-hide-remove-active {\n        transform: rotateY(0);\n      }\n\n      .check-element {\n        border: 1px solid black;\n        opacity: 1;\n        padding: 10px;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should check ngHide', function() {\n        var checkbox = element(by.model('checked'));\n        var checkElem = element(by.css('.check-element'));\n\n        expect(checkElem.isDisplayed()).toBe(true);\n        checkbox.click();\n        expect(checkElem.isDisplayed()).toBe(false);\n      });\n    </file>\n  </example>\n *\n * @knownIssue\n *\n * ### Flickering when using ngHide to toggle between elements\n *\n * When using {@link ngShow} and / or {@link ngHide} to toggle between elements, it can\n * happen that both the element to show and the element to hide are visible for a very short time.\n *\n * This usually happens when the {@link ngAnimate ngAnimate module} is included, but no actual animations\n * are defined for {@link ngShow} / {@link ngHide}. Internet Explorer is affected more often than\n * other browsers.\n *\n * There are several way to mitigate this problem:\n *\n * - {@link guide/animations#how-to-selectively-enable-disable-and-skip-animations Disable animations on the affected elements}.\n * - Use {@link ngIf} or {@link ngSwitch} instead of {@link ngShow} / {@link ngHide}.\n * - Use the special CSS selector `ng-hide.ng-hide-animate` to set `{display: none}` or similar on the affected elements.\n * - Use `ng-class=\"{'ng-hide': expression}` instead of instead of {@link ngShow} / {@link ngHide}.\n * - Define an animation on the affected elements.\n */\nvar ngHideDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    multiElement: true,\n    link: function(scope, element, attr) {\n      scope.$watch(attr.ngHide, function ngHideWatchAction(value) {\n        // The comment inside of the ngShowDirective explains why we add and\n        // remove a temporary class for the show/hide animation\n        $animate[value ? 'addClass' : 'removeClass'](element,NG_HIDE_CLASS, {\n          tempClasses: NG_HIDE_IN_PROGRESS_CLASS\n        });\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngStyle\n * @restrict AC\n *\n * @description\n * The `ngStyle` directive allows you to set CSS style on an HTML element conditionally.\n *\n * @knownIssue\n * You should not use {@link guide/interpolation interpolation} in the value of the `style`\n * attribute, when using the `ngStyle` directive on the same element.\n * See {@link guide/interpolation#known-issues here} for more info.\n *\n * @element ANY\n * @param {expression} ngStyle\n *\n * {@link guide/expression Expression} which evals to an\n * object whose keys are CSS style names and values are corresponding values for those CSS\n * keys.\n *\n * Since some CSS style names are not valid keys for an object, they must be quoted.\n * See the 'background-color' style in the example below.\n *\n * @example\n   <example name=\"ng-style\">\n     <file name=\"index.html\">\n        <input type=\"button\" value=\"set color\" ng-click=\"myStyle={color:'red'}\">\n        <input type=\"button\" value=\"set background\" ng-click=\"myStyle={'background-color':'blue'}\">\n        <input type=\"button\" value=\"clear\" ng-click=\"myStyle={}\">\n        <br/>\n        <span ng-style=\"myStyle\">Sample Text</span>\n        <pre>myStyle={{myStyle}}</pre>\n     </file>\n     <file name=\"style.css\">\n       span {\n         color: black;\n       }\n     </file>\n     <file name=\"protractor.js\" type=\"protractor\">\n       var colorSpan = element(by.css('span'));\n\n       it('should check ng-style', function() {\n         expect(colorSpan.getCssValue('color')).toMatch(/rgba\\(0, 0, 0, 1\\)|rgb\\(0, 0, 0\\)/);\n         element(by.css('input[value=\\'set color\\']')).click();\n         expect(colorSpan.getCssValue('color')).toMatch(/rgba\\(255, 0, 0, 1\\)|rgb\\(255, 0, 0\\)/);\n         element(by.css('input[value=clear]')).click();\n         expect(colorSpan.getCssValue('color')).toMatch(/rgba\\(0, 0, 0, 1\\)|rgb\\(0, 0, 0\\)/);\n       });\n     </file>\n   </example>\n */\nvar ngStyleDirective = ngDirective(function(scope, element, attr) {\n  scope.$watchCollection(attr.ngStyle, function ngStyleWatchAction(newStyles, oldStyles) {\n    if (oldStyles && (newStyles !== oldStyles)) {\n      forEach(oldStyles, function(val, style) { element.css(style, ''); });\n    }\n    if (newStyles) element.css(newStyles);\n  });\n});\n\n/**\n * @ngdoc directive\n * @name ngSwitch\n * @restrict EA\n *\n * @description\n * The `ngSwitch` directive is used to conditionally swap DOM structure on your template based on a scope expression.\n * Elements within `ngSwitch` but without `ngSwitchWhen` or `ngSwitchDefault` directives will be preserved at the location\n * as specified in the template.\n *\n * The directive itself works similar to ngInclude, however, instead of downloading template code (or loading it\n * from the template cache), `ngSwitch` simply chooses one of the nested elements and makes it visible based on which element\n * matches the value obtained from the evaluated expression. In other words, you define a container element\n * (where you place the directive), place an expression on the **`on=\"...\"` attribute**\n * (or the **`ng-switch=\"...\"` attribute**), define any inner elements inside of the directive and place\n * a when attribute per element. The when attribute is used to inform ngSwitch which element to display when the on\n * expression is evaluated. If a matching expression is not found via a when attribute then an element with the default\n * attribute is displayed.\n *\n * <div class=\"alert alert-info\">\n * Be aware that the attribute values to match against cannot be expressions. They are interpreted\n * as literal string values to match against.\n * For example, **`ng-switch-when=\"someVal\"`** will match against the string `\"someVal\"` not against the\n * value of the expression `$scope.someVal`.\n * </div>\n\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | after the ngSwitch contents change and the matched child element is placed inside the container |\n * | {@link ng.$animate#leave leave}  | after the ngSwitch contents change and just before the former contents are removed from the DOM |\n *\n * @usage\n *\n * ```\n * <ANY ng-switch=\"expression\">\n *   <ANY ng-switch-when=\"matchValue1\">...</ANY>\n *   <ANY ng-switch-when=\"matchValue2\">...</ANY>\n *   <ANY ng-switch-default>...</ANY>\n * </ANY>\n * ```\n *\n *\n * @scope\n * @priority 1200\n * @param {*} ngSwitch|on expression to match against <code>ng-switch-when</code>.\n * On child elements add:\n *\n * * `ngSwitchWhen`: the case statement to match against. If match then this\n *   case will be displayed. If the same match appears multiple times, all the\n *   elements will be displayed. It is possible to associate multiple values to\n *   the same `ngSwitchWhen` by defining the optional attribute\n *   `ngSwitchWhenSeparator`. The separator will be used to split the value of\n *   the `ngSwitchWhen` attribute into multiple tokens, and the element will show\n *   if any of the `ngSwitch` evaluates to any of these tokens.\n * * `ngSwitchDefault`: the default case when no other case match. If there\n *   are multiple default cases, all of them will be displayed when no other\n *   case match.\n *\n *\n * @example\n  <example module=\"switchExample\" deps=\"angular-animate.js\" animations=\"true\" name=\"ng-switch\">\n    <file name=\"index.html\">\n      <div ng-controller=\"ExampleController\">\n        <select ng-model=\"selection\" ng-options=\"item for item in items\">\n        </select>\n        <code>selection={{selection}}</code>\n        <hr/>\n        <div class=\"animate-switch-container\"\n          ng-switch on=\"selection\">\n            <div class=\"animate-switch\" ng-switch-when=\"settings|options\" ng-switch-when-separator=\"|\">Settings Div</div>\n            <div class=\"animate-switch\" ng-switch-when=\"home\">Home Span</div>\n            <div class=\"animate-switch\" ng-switch-default>default</div>\n        </div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('switchExample', ['ngAnimate'])\n        .controller('ExampleController', ['$scope', function($scope) {\n          $scope.items = ['settings', 'home', 'options', 'other'];\n          $scope.selection = $scope.items[0];\n        }]);\n    </file>\n    <file name=\"animations.css\">\n      .animate-switch-container {\n        position:relative;\n        background:white;\n        border:1px solid black;\n        height:40px;\n        overflow:hidden;\n      }\n\n      .animate-switch {\n        padding:10px;\n      }\n\n      .animate-switch.ng-animate {\n        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;\n\n        position:absolute;\n        top:0;\n        left:0;\n        right:0;\n        bottom:0;\n      }\n\n      .animate-switch.ng-leave.ng-leave-active,\n      .animate-switch.ng-enter {\n        top:-50px;\n      }\n      .animate-switch.ng-leave,\n      .animate-switch.ng-enter.ng-enter-active {\n        top:0;\n      }\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      var switchElem = element(by.css('[ng-switch]'));\n      var select = element(by.model('selection'));\n\n      it('should start in settings', function() {\n        expect(switchElem.getText()).toMatch(/Settings Div/);\n      });\n      it('should change to home', function() {\n        select.all(by.css('option')).get(1).click();\n        expect(switchElem.getText()).toMatch(/Home Span/);\n      });\n      it('should change to settings via \"options\"', function() {\n        select.all(by.css('option')).get(2).click();\n        expect(switchElem.getText()).toMatch(/Settings Div/);\n      });\n      it('should select default', function() {\n        select.all(by.css('option')).get(3).click();\n        expect(switchElem.getText()).toMatch(/default/);\n      });\n    </file>\n  </example>\n */\nvar ngSwitchDirective = ['$animate', '$compile', function($animate, $compile) {\n  return {\n    require: 'ngSwitch',\n\n    // asks for $scope to fool the BC controller module\n    controller: ['$scope', function NgSwitchController() {\n     this.cases = {};\n    }],\n    link: function(scope, element, attr, ngSwitchController) {\n      var watchExpr = attr.ngSwitch || attr.on,\n          selectedTranscludes = [],\n          selectedElements = [],\n          previousLeaveAnimations = [],\n          selectedScopes = [];\n\n      var spliceFactory = function(array, index) {\n          return function(response) {\n            if (response !== false) array.splice(index, 1);\n          };\n      };\n\n      scope.$watch(watchExpr, function ngSwitchWatchAction(value) {\n        var i, ii;\n\n        // Start with the last, in case the array is modified during the loop\n        while (previousLeaveAnimations.length) {\n          $animate.cancel(previousLeaveAnimations.pop());\n        }\n\n        for (i = 0, ii = selectedScopes.length; i < ii; ++i) {\n          var selected = getBlockNodes(selectedElements[i].clone);\n          selectedScopes[i].$destroy();\n          var runner = previousLeaveAnimations[i] = $animate.leave(selected);\n          runner.done(spliceFactory(previousLeaveAnimations, i));\n        }\n\n        selectedElements.length = 0;\n        selectedScopes.length = 0;\n\n        if ((selectedTranscludes = ngSwitchController.cases['!' + value] || ngSwitchController.cases['?'])) {\n          forEach(selectedTranscludes, function(selectedTransclude) {\n            selectedTransclude.transclude(function(caseElement, selectedScope) {\n              selectedScopes.push(selectedScope);\n              var anchor = selectedTransclude.element;\n              caseElement[caseElement.length++] = $compile.$$createComment('end ngSwitchWhen');\n              var block = { clone: caseElement };\n\n              selectedElements.push(block);\n              $animate.enter(caseElement, anchor.parent(), anchor);\n            });\n          });\n        }\n      });\n    }\n  };\n}];\n\nvar ngSwitchWhenDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attrs, ctrl, $transclude) {\n\n    var cases = attrs.ngSwitchWhen.split(attrs.ngSwitchWhenSeparator).sort().filter(\n      // Filter duplicate cases\n      function(element, index, array) { return array[index - 1] !== element; }\n    );\n\n    forEach(cases, function(whenCase) {\n      ctrl.cases['!' + whenCase] = (ctrl.cases['!' + whenCase] || []);\n      ctrl.cases['!' + whenCase].push({ transclude: $transclude, element: element });\n    });\n  }\n});\n\nvar ngSwitchDefaultDirective = ngDirective({\n  transclude: 'element',\n  priority: 1200,\n  require: '^ngSwitch',\n  multiElement: true,\n  link: function(scope, element, attr, ctrl, $transclude) {\n    ctrl.cases['?'] = (ctrl.cases['?'] || []);\n    ctrl.cases['?'].push({ transclude: $transclude, element: element });\n   }\n});\n\n/**\n * @ngdoc directive\n * @name ngTransclude\n * @restrict EAC\n *\n * @description\n * Directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion.\n *\n * You can specify that you want to insert a named transclusion slot, instead of the default slot, by providing the slot name\n * as the value of the `ng-transclude` or `ng-transclude-slot` attribute.\n *\n * If the transcluded content is not empty (i.e. contains one or more DOM nodes, including whitespace text nodes), any existing\n * content of this element will be removed before the transcluded content is inserted.\n * If the transcluded content is empty (or only whitespace), the existing content is left intact. This lets you provide fallback\n * content in the case that no transcluded content is provided.\n *\n * @element ANY\n *\n * @param {string} ngTransclude|ngTranscludeSlot the name of the slot to insert at this point. If this is not provided, is empty\n *                                               or its value is the same as the name of the attribute then the default slot is used.\n *\n * @example\n * ### Basic transclusion\n * This example demonstrates basic transclusion of content into a component directive.\n * <example name=\"simpleTranscludeExample\" module=\"transcludeExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('transcludeExample', [])\n *        .directive('pane', function(){\n *           return {\n *             restrict: 'E',\n *             transclude: true,\n *             scope: { title:'@' },\n *             template: '<div style=\"border: 1px solid black;\">' +\n *                         '<div style=\"background-color: gray\">{{title}}</div>' +\n *                         '<ng-transclude></ng-transclude>' +\n *                       '</div>'\n *           };\n *       })\n *       .controller('ExampleController', ['$scope', function($scope) {\n *         $scope.title = 'Lorem Ipsum';\n *         $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';\n *       }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <input ng-model=\"title\" aria-label=\"title\"> <br/>\n *       <textarea ng-model=\"text\" aria-label=\"text\"></textarea> <br/>\n *       <pane title=\"{{title}}\"><span>{{text}}</span></pane>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      it('should have transcluded', function() {\n *        var titleElement = element(by.model('title'));\n *        titleElement.clear();\n *        titleElement.sendKeys('TITLE');\n *        var textElement = element(by.model('text'));\n *        textElement.clear();\n *        textElement.sendKeys('TEXT');\n *        expect(element(by.binding('title')).getText()).toEqual('TITLE');\n *        expect(element(by.binding('text')).getText()).toEqual('TEXT');\n *      });\n *   </file>\n * </example>\n *\n * @example\n * ### Transclude fallback content\n * This example shows how to use `NgTransclude` with fallback content, that\n * is displayed if no transcluded content is provided.\n *\n * <example module=\"transcludeFallbackContentExample\" name=\"ng-transclude\">\n * <file name=\"index.html\">\n * <script>\n * angular.module('transcludeFallbackContentExample', [])\n * .directive('myButton', function(){\n *             return {\n *               restrict: 'E',\n *               transclude: true,\n *               scope: true,\n *               template: '<button style=\"cursor: pointer;\">' +\n *                           '<ng-transclude>' +\n *                             '<b style=\"color: red;\">Button1</b>' +\n *                           '</ng-transclude>' +\n *                         '</button>'\n *             };\n *         });\n * </script>\n * <!-- fallback button content -->\n * <my-button id=\"fallback\"></my-button>\n * <!-- modified button content -->\n * <my-button id=\"modified\">\n *   <i style=\"color: green;\">Button2</i>\n * </my-button>\n * </file>\n * <file name=\"protractor.js\" type=\"protractor\">\n * it('should have different transclude element content', function() {\n *          expect(element(by.id('fallback')).getText()).toBe('Button1');\n *          expect(element(by.id('modified')).getText()).toBe('Button2');\n *        });\n * </file>\n * </example>\n *\n * @example\n * ### Multi-slot transclusion\n * This example demonstrates using multi-slot transclusion in a component directive.\n * <example name=\"multiSlotTranscludeExample\" module=\"multiSlotTranscludeExample\">\n *   <file name=\"index.html\">\n *    <style>\n *      .title, .footer {\n *        background-color: gray\n *      }\n *    </style>\n *    <div ng-controller=\"ExampleController\">\n *      <input ng-model=\"title\" aria-label=\"title\"> <br/>\n *      <textarea ng-model=\"text\" aria-label=\"text\"></textarea> <br/>\n *      <pane>\n *        <pane-title><a ng-href=\"{{link}}\">{{title}}</a></pane-title>\n *        <pane-body><p>{{text}}</p></pane-body>\n *      </pane>\n *    </div>\n *   </file>\n *   <file name=\"app.js\">\n *    angular.module('multiSlotTranscludeExample', [])\n *     .directive('pane', function() {\n *        return {\n *          restrict: 'E',\n *          transclude: {\n *            'title': '?paneTitle',\n *            'body': 'paneBody',\n *            'footer': '?paneFooter'\n *          },\n *          template: '<div style=\"border: 1px solid black;\">' +\n *                      '<div class=\"title\" ng-transclude=\"title\">Fallback Title</div>' +\n *                      '<div ng-transclude=\"body\"></div>' +\n *                      '<div class=\"footer\" ng-transclude=\"footer\">Fallback Footer</div>' +\n *                    '</div>'\n *        };\n *    })\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.title = 'Lorem Ipsum';\n *      $scope.link = 'https://google.com';\n *      $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';\n *    }]);\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *      it('should have transcluded the title and the body', function() {\n *        var titleElement = element(by.model('title'));\n *        titleElement.clear();\n *        titleElement.sendKeys('TITLE');\n *        var textElement = element(by.model('text'));\n *        textElement.clear();\n *        textElement.sendKeys('TEXT');\n *        expect(element(by.css('.title')).getText()).toEqual('TITLE');\n *        expect(element(by.binding('text')).getText()).toEqual('TEXT');\n *        expect(element(by.css('.footer')).getText()).toEqual('Fallback Footer');\n *      });\n *   </file>\n * </example>\n */\nvar ngTranscludeMinErr = minErr('ngTransclude');\nvar ngTranscludeDirective = ['$compile', function($compile) {\n  return {\n    restrict: 'EAC',\n    compile: function ngTranscludeCompile(tElement) {\n\n      // Remove and cache any original content to act as a fallback\n      var fallbackLinkFn = $compile(tElement.contents());\n      tElement.empty();\n\n      return function ngTranscludePostLink($scope, $element, $attrs, controller, $transclude) {\n\n        if (!$transclude) {\n          throw ngTranscludeMinErr('orphan',\n          'Illegal use of ngTransclude directive in the template! ' +\n          'No parent directive that requires a transclusion found. ' +\n          'Element: {0}',\n          startingTag($element));\n        }\n\n\n        // If the attribute is of the form: `ng-transclude=\"ng-transclude\"` then treat it like the default\n        if ($attrs.ngTransclude === $attrs.$attr.ngTransclude) {\n          $attrs.ngTransclude = '';\n        }\n        var slotName = $attrs.ngTransclude || $attrs.ngTranscludeSlot;\n\n        // If the slot is required and no transclusion content is provided then this call will throw an error\n        $transclude(ngTranscludeCloneAttachFn, null, slotName);\n\n        // If the slot is optional and no transclusion content is provided then use the fallback content\n        if (slotName && !$transclude.isSlotFilled(slotName)) {\n          useFallbackContent();\n        }\n\n        function ngTranscludeCloneAttachFn(clone, transcludedScope) {\n          if (clone.length && notWhitespace(clone)) {\n            $element.append(clone);\n          } else {\n            useFallbackContent();\n            // There is nothing linked against the transcluded scope since no content was available,\n            // so it should be safe to clean up the generated scope.\n            transcludedScope.$destroy();\n          }\n        }\n\n        function useFallbackContent() {\n          // Since this is the fallback content rather than the transcluded content,\n          // we link against the scope of this directive rather than the transcluded scope\n          fallbackLinkFn($scope, function(clone) {\n            $element.append(clone);\n          });\n        }\n\n        function notWhitespace(nodes) {\n          for (var i = 0, ii = nodes.length; i < ii; i++) {\n            var node = nodes[i];\n            if (node.nodeType !== NODE_TYPE_TEXT || node.nodeValue.trim()) {\n              return true;\n            }\n          }\n        }\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name script\n * @restrict E\n *\n * @description\n * Load the content of a `<script>` element into {@link ng.$templateCache `$templateCache`}, so that the\n * template can be used by {@link ng.directive:ngInclude `ngInclude`},\n * {@link ngRoute.directive:ngView `ngView`}, or {@link guide/directive directives}. The type of the\n * `<script>` element must be specified as `text/ng-template`, and a cache name for the template must be\n * assigned through the element's `id`, which can then be used as a directive's `templateUrl`.\n *\n * @param {string} type Must be set to `'text/ng-template'`.\n * @param {string} id Cache name of the template.\n *\n * @example\n  <example  name=\"script-tag\">\n    <file name=\"index.html\">\n      <script type=\"text/ng-template\" id=\"/tpl.html\">\n        Content of the template.\n      </script>\n\n      <a ng-click=\"currentTpl='/tpl.html'\" id=\"tpl-link\">Load inlined template</a>\n      <div id=\"tpl-content\" ng-include src=\"currentTpl\"></div>\n    </file>\n    <file name=\"protractor.js\" type=\"protractor\">\n      it('should load template defined inside script tag', function() {\n        element(by.css('#tpl-link')).click();\n        expect(element(by.css('#tpl-content')).getText()).toMatch(/Content of the template/);\n      });\n    </file>\n  </example>\n */\nvar scriptDirective = ['$templateCache', function($templateCache) {\n  return {\n    restrict: 'E',\n    terminal: true,\n    compile: function(element, attr) {\n      if (attr.type === 'text/ng-template') {\n        var templateUrl = attr.id,\n            text = element[0].text;\n\n        $templateCache.put(templateUrl, text);\n      }\n    }\n  };\n}];\n\n/* exported selectDirective, optionDirective */\n\nvar noopNgModelController = { $setViewValue: noop, $render: noop };\n\nfunction setOptionSelectedStatus(optionEl, value) {\n  optionEl.prop('selected', value);\n  /**\n   * When unselecting an option, setting the property to null / false should be enough\n   * However, screenreaders might react to the selected attribute instead, see\n   * https://github.com/angular/angular.js/issues/14419\n   * Note: \"selected\" is a boolean attr and will be removed when the \"value\" arg in attr() is false\n   * or null\n   */\n  optionEl.attr('selected', value);\n}\n\n/**\n * @ngdoc type\n * @name  select.SelectController\n *\n * @description\n * The controller for the {@link ng.select select} directive. The controller exposes\n * a few utility methods that can be used to augment the behavior of a regular or an\n * {@link ng.ngOptions ngOptions} select element.\n *\n * @example\n * ### Set a custom error when the unknown option is selected\n *\n * This example sets a custom error \"unknownValue\" on the ngModelController\n * when the select element's unknown option is selected, i.e. when the model is set to a value\n * that is not matched by any option.\n *\n * <example name=\"select-unknown-value-error\" module=\"staticSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"testSelect\"> Single select: </label><br>\n *     <select name=\"testSelect\" ng-model=\"selected\" unknown-value-error>\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *     <span class=\"error\" ng-if=\"myForm.testSelect.$error.unknownValue\">\n *       Error: The current model doesn't match any option</span><br>\n *\n *     <button ng-click=\"forceUnknownOption()\">Force unknown option</button><br>\n *   </form>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('staticSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.selected = null;\n *\n *      $scope.forceUnknownOption = function() {\n *        $scope.selected = 'nonsense';\n *      };\n *   }])\n *   .directive('unknownValueError', function() {\n *     return {\n *       require: ['ngModel', 'select'],\n *       link: function(scope, element, attrs, ctrls) {\n *         var ngModelCtrl = ctrls[0];\n *         var selectCtrl = ctrls[1];\n *\n *         ngModelCtrl.$validators.unknownValue = function(modelValue, viewValue) {\n *           if (selectCtrl.$isUnknownOptionSelected()) {\n *             return false;\n *           }\n *\n *           return true;\n *         };\n *       }\n *\n *     };\n *   });\n * </file>\n *</example>\n *\n *\n * @example\n * ### Set the \"required\" error when the unknown option is selected.\n *\n * By default, the \"required\" error on the ngModelController is only set on a required select\n * when the empty option is selected. This example adds a custom directive that also sets the\n * error when the unknown option is selected.\n *\n * <example name=\"select-unknown-value-required\" module=\"staticSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"testSelect\"> Select: </label><br>\n *     <select name=\"testSelect\" ng-model=\"selected\" required unknown-value-required>\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *     <span class=\"error\" ng-if=\"myForm.testSelect.$error.required\">Error: Please select a value</span><br>\n *\n *     <button ng-click=\"forceUnknownOption()\">Force unknown option</button><br>\n *   </form>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('staticSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.selected = null;\n *\n *      $scope.forceUnknownOption = function() {\n *        $scope.selected = 'nonsense';\n *      };\n *   }])\n *   .directive('unknownValueRequired', function() {\n *     return {\n *       priority: 1, // This directive must run after the required directive has added its validator\n *       require: ['ngModel', 'select'],\n *       link: function(scope, element, attrs, ctrls) {\n *         var ngModelCtrl = ctrls[0];\n *         var selectCtrl = ctrls[1];\n *\n *         var originalRequiredValidator = ngModelCtrl.$validators.required;\n *\n *         ngModelCtrl.$validators.required = function() {\n *           if (attrs.required && selectCtrl.$isUnknownOptionSelected()) {\n *             return false;\n *           }\n *\n *           return originalRequiredValidator.apply(this, arguments);\n *         };\n *       }\n *     };\n *   });\n * </file>\n * <file name=\"protractor.js\" type=\"protractor\">\n *  it('should show the error message when the unknown option is selected', function() {\n\n      var error = element(by.className('error'));\n\n      expect(error.getText()).toBe('Error: Please select a value');\n\n      element(by.cssContainingText('option', 'Option 1')).click();\n\n      expect(error.isPresent()).toBe(false);\n\n      element(by.tagName('button')).click();\n\n      expect(error.getText()).toBe('Error: Please select a value');\n    });\n * </file>\n *</example>\n *\n *\n */\nvar SelectController =\n        ['$element', '$scope', /** @this */ function($element, $scope) {\n\n  var self = this,\n      optionsMap = new NgMap();\n\n  self.selectValueMap = {}; // Keys are the hashed values, values the original values\n\n  // If the ngModel doesn't get provided then provide a dummy noop version to prevent errors\n  self.ngModelCtrl = noopNgModelController;\n  self.multiple = false;\n\n  // The \"unknown\" option is one that is prepended to the list if the viewValue\n  // does not match any of the options. When it is rendered the value of the unknown\n  // option is '? XXX ?' where XXX is the hashKey of the value that is not known.\n  //\n  // Support: IE 9 only\n  // We can't just jqLite('<option>') since jqLite is not smart enough\n  // to create it in <select> and IE barfs otherwise.\n  self.unknownOption = jqLite(window.document.createElement('option'));\n\n  // The empty option is an option with the value '' that the application developer can\n  // provide inside the select. It is always selectable and indicates that a \"null\" selection has\n  // been made by the user.\n  // If the select has an empty option, and the model of the select is set to \"undefined\" or \"null\",\n  // the empty option is selected.\n  // If the model is set to a different unmatched value, the unknown option is rendered and\n  // selected, i.e both are present, because a \"null\" selection and an unknown value are different.\n  self.hasEmptyOption = false;\n  self.emptyOption = undefined;\n\n  self.renderUnknownOption = function(val) {\n    var unknownVal = self.generateUnknownOptionValue(val);\n    self.unknownOption.val(unknownVal);\n    $element.prepend(self.unknownOption);\n    setOptionSelectedStatus(self.unknownOption, true);\n    $element.val(unknownVal);\n  };\n\n  self.updateUnknownOption = function(val) {\n    var unknownVal = self.generateUnknownOptionValue(val);\n    self.unknownOption.val(unknownVal);\n    setOptionSelectedStatus(self.unknownOption, true);\n    $element.val(unknownVal);\n  };\n\n  self.generateUnknownOptionValue = function(val) {\n    return '? ' + hashKey(val) + ' ?';\n  };\n\n  self.removeUnknownOption = function() {\n    if (self.unknownOption.parent()) self.unknownOption.remove();\n  };\n\n  self.selectEmptyOption = function() {\n    if (self.emptyOption) {\n      $element.val('');\n      setOptionSelectedStatus(self.emptyOption, true);\n    }\n  };\n\n  self.unselectEmptyOption = function() {\n    if (self.hasEmptyOption) {\n      setOptionSelectedStatus(self.emptyOption, false);\n    }\n  };\n\n  $scope.$on('$destroy', function() {\n    // disable unknown option so that we don't do work when the whole select is being destroyed\n    self.renderUnknownOption = noop;\n  });\n\n  // Read the value of the select control, the implementation of this changes depending\n  // upon whether the select can have multiple values and whether ngOptions is at work.\n  self.readValue = function readSingleValue() {\n    var val = $element.val();\n    // ngValue added option values are stored in the selectValueMap, normal interpolations are not\n    var realVal = val in self.selectValueMap ? self.selectValueMap[val] : val;\n\n    if (self.hasOption(realVal)) {\n      return realVal;\n    }\n\n    return null;\n  };\n\n\n  // Write the value to the select control, the implementation of this changes depending\n  // upon whether the select can have multiple values and whether ngOptions is at work.\n  self.writeValue = function writeSingleValue(value) {\n    // Make sure to remove the selected attribute from the previously selected option\n    // Otherwise, screen readers might get confused\n    var currentlySelectedOption = $element[0].options[$element[0].selectedIndex];\n    if (currentlySelectedOption) setOptionSelectedStatus(jqLite(currentlySelectedOption), false);\n\n    if (self.hasOption(value)) {\n      self.removeUnknownOption();\n\n      var hashedVal = hashKey(value);\n      $element.val(hashedVal in self.selectValueMap ? hashedVal : value);\n\n      // Set selected attribute and property on selected option for screen readers\n      var selectedOption = $element[0].options[$element[0].selectedIndex];\n      setOptionSelectedStatus(jqLite(selectedOption), true);\n    } else {\n      self.selectUnknownOrEmptyOption(value);\n    }\n  };\n\n\n  // Tell the select control that an option, with the given value, has been added\n  self.addOption = function(value, element) {\n    // Skip comment nodes, as they only pollute the `optionsMap`\n    if (element[0].nodeType === NODE_TYPE_COMMENT) return;\n\n    assertNotHasOwnProperty(value, '\"option value\"');\n    if (value === '') {\n      self.hasEmptyOption = true;\n      self.emptyOption = element;\n    }\n    var count = optionsMap.get(value) || 0;\n    optionsMap.set(value, count + 1);\n    // Only render at the end of a digest. This improves render performance when many options\n    // are added during a digest and ensures all relevant options are correctly marked as selected\n    scheduleRender();\n  };\n\n  // Tell the select control that an option, with the given value, has been removed\n  self.removeOption = function(value) {\n    var count = optionsMap.get(value);\n    if (count) {\n      if (count === 1) {\n        optionsMap.delete(value);\n        if (value === '') {\n          self.hasEmptyOption = false;\n          self.emptyOption = undefined;\n        }\n      } else {\n        optionsMap.set(value, count - 1);\n      }\n    }\n  };\n\n  // Check whether the select control has an option matching the given value\n  self.hasOption = function(value) {\n    return !!optionsMap.get(value);\n  };\n\n  /**\n   * @ngdoc method\n   * @name select.SelectController#$hasEmptyOption\n   *\n   * @description\n   *\n   * Returns `true` if the select element currently has an empty option\n   * element, i.e. an option that signifies that the select is empty / the selection is null.\n   *\n   */\n  self.$hasEmptyOption = function() {\n    return self.hasEmptyOption;\n  };\n\n  /**\n   * @ngdoc method\n   * @name select.SelectController#$isUnknownOptionSelected\n   *\n   * @description\n   *\n   * Returns `true` if the select element's unknown option is selected. The unknown option is added\n   * and automatically selected whenever the select model doesn't match any option.\n   *\n   */\n  self.$isUnknownOptionSelected = function() {\n    // Presence of the unknown option means it is selected\n    return $element[0].options[0] === self.unknownOption[0];\n  };\n\n  /**\n   * @ngdoc method\n   * @name select.SelectController#$isEmptyOptionSelected\n   *\n   * @description\n   *\n   * Returns `true` if the select element has an empty option and this empty option is currently\n   * selected. Returns `false` if the select element has no empty option or it is not selected.\n   *\n   */\n  self.$isEmptyOptionSelected = function() {\n    return self.hasEmptyOption && $element[0].options[$element[0].selectedIndex] === self.emptyOption[0];\n  };\n\n  self.selectUnknownOrEmptyOption = function(value) {\n    if (value == null && self.emptyOption) {\n      self.removeUnknownOption();\n      self.selectEmptyOption();\n    } else if (self.unknownOption.parent().length) {\n      self.updateUnknownOption(value);\n    } else {\n      self.renderUnknownOption(value);\n    }\n  };\n\n  var renderScheduled = false;\n  function scheduleRender() {\n    if (renderScheduled) return;\n    renderScheduled = true;\n    $scope.$$postDigest(function() {\n      renderScheduled = false;\n      self.ngModelCtrl.$render();\n    });\n  }\n\n  var updateScheduled = false;\n  function scheduleViewValueUpdate(renderAfter) {\n    if (updateScheduled) return;\n\n    updateScheduled = true;\n\n    $scope.$$postDigest(function() {\n      if ($scope.$$destroyed) return;\n\n      updateScheduled = false;\n      self.ngModelCtrl.$setViewValue(self.readValue());\n      if (renderAfter) self.ngModelCtrl.$render();\n    });\n  }\n\n\n  self.registerOption = function(optionScope, optionElement, optionAttrs, interpolateValueFn, interpolateTextFn) {\n\n    if (optionAttrs.$attr.ngValue) {\n      // The value attribute is set by ngValue\n      var oldVal, hashedVal;\n      optionAttrs.$observe('value', function valueAttributeObserveAction(newVal) {\n\n        var removal;\n        var previouslySelected = optionElement.prop('selected');\n\n        if (isDefined(hashedVal)) {\n          self.removeOption(oldVal);\n          delete self.selectValueMap[hashedVal];\n          removal = true;\n        }\n\n        hashedVal = hashKey(newVal);\n        oldVal = newVal;\n        self.selectValueMap[hashedVal] = newVal;\n        self.addOption(newVal, optionElement);\n        // Set the attribute directly instead of using optionAttrs.$set - this stops the observer\n        // from firing a second time. Other $observers on value will also get the result of the\n        // ngValue expression, not the hashed value\n        optionElement.attr('value', hashedVal);\n\n        if (removal && previouslySelected) {\n          scheduleViewValueUpdate();\n        }\n\n      });\n    } else if (interpolateValueFn) {\n      // The value attribute is interpolated\n      optionAttrs.$observe('value', function valueAttributeObserveAction(newVal) {\n        // This method is overwritten in ngOptions and has side-effects!\n        self.readValue();\n\n        var removal;\n        var previouslySelected = optionElement.prop('selected');\n\n        if (isDefined(oldVal)) {\n          self.removeOption(oldVal);\n          removal = true;\n        }\n        oldVal = newVal;\n        self.addOption(newVal, optionElement);\n\n        if (removal && previouslySelected) {\n          scheduleViewValueUpdate();\n        }\n      });\n    } else if (interpolateTextFn) {\n      // The text content is interpolated\n      optionScope.$watch(interpolateTextFn, function interpolateWatchAction(newVal, oldVal) {\n        optionAttrs.$set('value', newVal);\n        var previouslySelected = optionElement.prop('selected');\n        if (oldVal !== newVal) {\n          self.removeOption(oldVal);\n        }\n        self.addOption(newVal, optionElement);\n\n        if (oldVal && previouslySelected) {\n          scheduleViewValueUpdate();\n        }\n      });\n    } else {\n      // The value attribute is static\n      self.addOption(optionAttrs.value, optionElement);\n    }\n\n\n    optionAttrs.$observe('disabled', function(newVal) {\n\n      // Since model updates will also select disabled options (like ngOptions),\n      // we only have to handle options becoming disabled, not enabled\n\n      if (newVal === 'true' || newVal && optionElement.prop('selected')) {\n        if (self.multiple) {\n          scheduleViewValueUpdate(true);\n        } else {\n          self.ngModelCtrl.$setViewValue(null);\n          self.ngModelCtrl.$render();\n        }\n      }\n    });\n\n    optionElement.on('$destroy', function() {\n      var currentValue = self.readValue();\n      var removeValue = optionAttrs.value;\n\n      self.removeOption(removeValue);\n      scheduleRender();\n\n      if (self.multiple && currentValue && currentValue.indexOf(removeValue) !== -1 ||\n          currentValue === removeValue\n      ) {\n        // When multiple (selected) options are destroyed at the same time, we don't want\n        // to run a model update for each of them. Instead, run a single update in the $$postDigest\n        scheduleViewValueUpdate(true);\n      }\n    });\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name select\n * @restrict E\n *\n * @description\n * HTML `select` element with AngularJS data-binding.\n *\n * The `select` directive is used together with {@link ngModel `ngModel`} to provide data-binding\n * between the scope and the `<select>` control (including setting default values).\n * It also handles dynamic `<option>` elements, which can be added using the {@link ngRepeat `ngRepeat}` or\n * {@link ngOptions `ngOptions`} directives.\n *\n * When an item in the `<select>` menu is selected, the value of the selected option will be bound\n * to the model identified by the `ngModel` directive. With static or repeated options, this is\n * the content of the `value` attribute or the textContent of the `<option>`, if the value attribute is missing.\n * Value and textContent can be interpolated.\n *\n * The {@link select.SelectController select controller} exposes utility functions that can be used\n * to manipulate the select's behavior.\n *\n * ## Matching model and option values\n *\n * In general, the match between the model and an option is evaluated by strictly comparing the model\n * value against the value of the available options.\n *\n * If you are setting the option value with the option's `value` attribute, or textContent, the\n * value will always be a `string` which means that the model value must also be a string.\n * Otherwise the `select` directive cannot match them correctly.\n *\n * To bind the model to a non-string value, you can use one of the following strategies:\n * - the {@link ng.ngOptions `ngOptions`} directive\n *   ({@link ng.select#using-select-with-ngoptions-and-setting-a-default-value})\n * - the {@link ng.ngValue `ngValue`} directive, which allows arbitrary expressions to be\n *   option values ({@link ng.select#using-ngvalue-to-bind-the-model-to-an-array-of-objects Example})\n * - model $parsers / $formatters to convert the string value\n *   ({@link ng.select#binding-select-to-a-non-string-value-via-ngmodel-parsing-formatting Example})\n *\n * If the viewValue of `ngModel` does not match any of the options, then the control\n * will automatically add an \"unknown\" option, which it then removes when the mismatch is resolved.\n *\n * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can\n * be nested into the `<select>` element. This element will then represent the `null` or \"not selected\"\n * option. See example below for demonstration.\n *\n * ## Choosing between `ngRepeat` and `ngOptions`\n *\n * In many cases, `ngRepeat` can be used on `<option>` elements instead of {@link ng.directive:ngOptions\n * ngOptions} to achieve a similar result. However, `ngOptions` provides some benefits:\n * - more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the\n * comprehension expression\n * - reduced memory consumption by not creating a new scope for each repeated instance\n * - increased render speed by creating the options in a documentFragment instead of individually\n *\n * Specifically, select with repeated options slows down significantly starting at 2000 options in\n * Chrome and Internet Explorer / Edge.\n *\n *\n * @param {string} ngModel Assignable AngularJS expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} multiple Allows multiple options to be selected. The selected values will be\n *     bound to the model as an array.\n * @param {string=} required Sets `required` validation error key if the value is not entered.\n * @param {string=} ngRequired Adds required attribute and required validation constraint to\n * the element when the ngRequired expression evaluates to true. Use ngRequired instead of required\n * when you want to data-bind to the required attribute.\n * @param {string=} ngChange AngularJS expression to be executed when selected option(s) changes due to user\n *    interaction with the select element.\n * @param {string=} ngOptions sets the options that the select is populated with and defines what is\n * set on the model on selection. See {@link ngOptions `ngOptions`}.\n * @param {string=} ngAttrSize sets the size of the select element dynamically. Uses the\n * {@link guide/interpolation#-ngattr-for-binding-to-arbitrary-attributes ngAttr} directive.\n *\n *\n * @example\n * ### Simple `select` elements with static options\n *\n * <example name=\"static-select\" module=\"staticSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"singleSelect\"> Single select: </label><br>\n *     <select name=\"singleSelect\" ng-model=\"data.singleSelect\">\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *\n *     <label for=\"singleSelect\"> Single select with \"not selected\" option and dynamic option values: </label><br>\n *     <select name=\"singleSelect\" id=\"singleSelect\" ng-model=\"data.singleSelect\">\n *       <option value=\"\">---Please select---</option> <!-- not selected / blank option -->\n *       <option value=\"{{data.option1}}\">Option 1</option> <!-- interpolation -->\n *       <option value=\"option-2\">Option 2</option>\n *     </select><br>\n *     <button ng-click=\"forceUnknownOption()\">Force unknown option</button><br>\n *     <tt>singleSelect = {{data.singleSelect}}</tt>\n *\n *     <hr>\n *     <label for=\"multipleSelect\"> Multiple select: </label><br>\n *     <select name=\"multipleSelect\" id=\"multipleSelect\" ng-model=\"data.multipleSelect\" multiple>\n *       <option value=\"option-1\">Option 1</option>\n *       <option value=\"option-2\">Option 2</option>\n *       <option value=\"option-3\">Option 3</option>\n *     </select><br>\n *     <tt>multipleSelect = {{data.multipleSelect}}</tt><br/>\n *   </form>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('staticSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       singleSelect: null,\n *       multipleSelect: [],\n *       option1: 'option-1'\n *      };\n *\n *      $scope.forceUnknownOption = function() {\n *        $scope.data.singleSelect = 'nonsense';\n *      };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Using `ngRepeat` to generate `select` options\n * <example name=\"select-ngrepeat\" module=\"ngrepeatSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"repeatSelect\"> Repeat select: </label>\n *     <select name=\"repeatSelect\" id=\"repeatSelect\" ng-model=\"data.model\">\n *       <option ng-repeat=\"option in data.availableOptions\" value=\"{{option.id}}\">{{option.name}}</option>\n *     </select>\n *   </form>\n *   <hr>\n *   <tt>model = {{data.model}}</tt><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('ngrepeatSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       model: null,\n *       availableOptions: [\n *         {id: '1', name: 'Option A'},\n *         {id: '2', name: 'Option B'},\n *         {id: '3', name: 'Option C'}\n *       ]\n *      };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Using `ngValue` to bind the model to an array of objects\n * <example name=\"select-ngvalue\" module=\"ngvalueSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"ngvalueselect\"> ngvalue select: </label>\n *     <select size=\"6\" name=\"ngvalueselect\" ng-model=\"data.model\" multiple>\n *       <option ng-repeat=\"option in data.availableOptions\" ng-value=\"option.value\">{{option.name}}</option>\n *     </select>\n *   </form>\n *   <hr>\n *   <pre>model = {{data.model | json}}</pre><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('ngvalueSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       model: null,\n *       availableOptions: [\n           {value: 'myString', name: 'string'},\n           {value: 1, name: 'integer'},\n           {value: true, name: 'boolean'},\n           {value: null, name: 'null'},\n           {value: {prop: 'value'}, name: 'object'},\n           {value: ['a'], name: 'array'}\n *       ]\n *      };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Using `select` with `ngOptions` and setting a default value\n * See the {@link ngOptions ngOptions documentation} for more `ngOptions` usage examples.\n *\n * <example name=\"select-with-default-values\" module=\"defaultValueSelect\">\n * <file name=\"index.html\">\n * <div ng-controller=\"ExampleController\">\n *   <form name=\"myForm\">\n *     <label for=\"mySelect\">Make a choice:</label>\n *     <select name=\"mySelect\" id=\"mySelect\"\n *       ng-options=\"option.name for option in data.availableOptions track by option.id\"\n *       ng-model=\"data.selectedOption\"></select>\n *   </form>\n *   <hr>\n *   <tt>option = {{data.selectedOption}}</tt><br/>\n * </div>\n * </file>\n * <file name=\"app.js\">\n *  angular.module('defaultValueSelect', [])\n *    .controller('ExampleController', ['$scope', function($scope) {\n *      $scope.data = {\n *       availableOptions: [\n *         {id: '1', name: 'Option A'},\n *         {id: '2', name: 'Option B'},\n *         {id: '3', name: 'Option C'}\n *       ],\n *       selectedOption: {id: '3', name: 'Option C'} //This sets the default value of the select in the ui\n *       };\n *   }]);\n * </file>\n *</example>\n *\n * @example\n * ### Binding `select` to a non-string value via `ngModel` parsing / formatting\n *\n * <example name=\"select-with-non-string-options\" module=\"nonStringSelect\">\n *   <file name=\"index.html\">\n *     <select ng-model=\"model.id\" convert-to-number>\n *       <option value=\"0\">Zero</option>\n *       <option value=\"1\">One</option>\n *       <option value=\"2\">Two</option>\n *     </select>\n *     {{ model }}\n *   </file>\n *   <file name=\"app.js\">\n *     angular.module('nonStringSelect', [])\n *       .run(function($rootScope) {\n *         $rootScope.model = { id: 2 };\n *       })\n *       .directive('convertToNumber', function() {\n *         return {\n *           require: 'ngModel',\n *           link: function(scope, element, attrs, ngModel) {\n *             ngModel.$parsers.push(function(val) {\n *               return parseInt(val, 10);\n *             });\n *             ngModel.$formatters.push(function(val) {\n *               return '' + val;\n *             });\n *           }\n *         };\n *       });\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n *     it('should initialize to model', function() {\n *       expect(element(by.model('model.id')).$('option:checked').getText()).toEqual('Two');\n *     });\n *   </file>\n * </example>\n *\n */\nvar selectDirective = function() {\n\n  return {\n    restrict: 'E',\n    require: ['select', '?ngModel'],\n    controller: SelectController,\n    priority: 1,\n    link: {\n      pre: selectPreLink,\n      post: selectPostLink\n    }\n  };\n\n  function selectPreLink(scope, element, attr, ctrls) {\n\n      var selectCtrl = ctrls[0];\n      var ngModelCtrl = ctrls[1];\n\n      // if ngModel is not defined, we don't need to do anything but set the registerOption\n      // function to noop, so options don't get added internally\n      if (!ngModelCtrl) {\n        selectCtrl.registerOption = noop;\n        return;\n      }\n\n\n      selectCtrl.ngModelCtrl = ngModelCtrl;\n\n      // When the selected item(s) changes we delegate getting the value of the select control\n      // to the `readValue` method, which can be changed if the select can have multiple\n      // selected values or if the options are being generated by `ngOptions`\n      element.on('change', function() {\n        selectCtrl.removeUnknownOption();\n        scope.$apply(function() {\n          ngModelCtrl.$setViewValue(selectCtrl.readValue());\n        });\n      });\n\n      // If the select allows multiple values then we need to modify how we read and write\n      // values from and to the control; also what it means for the value to be empty and\n      // we have to add an extra watch since ngModel doesn't work well with arrays - it\n      // doesn't trigger rendering if only an item in the array changes.\n      if (attr.multiple) {\n        selectCtrl.multiple = true;\n\n        // Read value now needs to check each option to see if it is selected\n        selectCtrl.readValue = function readMultipleValue() {\n          var array = [];\n          forEach(element.find('option'), function(option) {\n            if (option.selected && !option.disabled) {\n              var val = option.value;\n              array.push(val in selectCtrl.selectValueMap ? selectCtrl.selectValueMap[val] : val);\n            }\n          });\n          return array;\n        };\n\n        // Write value now needs to set the selected property of each matching option\n        selectCtrl.writeValue = function writeMultipleValue(value) {\n          forEach(element.find('option'), function(option) {\n            var shouldBeSelected = !!value && (includes(value, option.value) ||\n                                               includes(value, selectCtrl.selectValueMap[option.value]));\n            var currentlySelected = option.selected;\n\n            // Support: IE 9-11 only, Edge 12-15+\n            // In IE and Edge adding options to the selection via shift+click/UP/DOWN\n            // will de-select already selected options if \"selected\" on those options was set\n            // more than once (i.e. when the options were already selected)\n            // So we only modify the selected property if necessary.\n            // Note: this behavior cannot be replicated via unit tests because it only shows in the\n            // actual user interface.\n            if (shouldBeSelected !== currentlySelected) {\n              setOptionSelectedStatus(jqLite(option), shouldBeSelected);\n            }\n\n          });\n        };\n\n        // we have to do it on each watch since ngModel watches reference, but\n        // we need to work of an array, so we need to see if anything was inserted/removed\n        var lastView, lastViewRef = NaN;\n        scope.$watch(function selectMultipleWatch() {\n          if (lastViewRef === ngModelCtrl.$viewValue && !equals(lastView, ngModelCtrl.$viewValue)) {\n            lastView = shallowCopy(ngModelCtrl.$viewValue);\n            ngModelCtrl.$render();\n          }\n          lastViewRef = ngModelCtrl.$viewValue;\n        });\n\n        // If we are a multiple select then value is now a collection\n        // so the meaning of $isEmpty changes\n        ngModelCtrl.$isEmpty = function(value) {\n          return !value || value.length === 0;\n        };\n\n      }\n    }\n\n    function selectPostLink(scope, element, attrs, ctrls) {\n      // if ngModel is not defined, we don't need to do anything\n      var ngModelCtrl = ctrls[1];\n      if (!ngModelCtrl) return;\n\n      var selectCtrl = ctrls[0];\n\n      // We delegate rendering to the `writeValue` method, which can be changed\n      // if the select can have multiple selected values or if the options are being\n      // generated by `ngOptions`.\n      // This must be done in the postLink fn to prevent $render to be called before\n      // all nodes have been linked correctly.\n      ngModelCtrl.$render = function() {\n        selectCtrl.writeValue(ngModelCtrl.$viewValue);\n      };\n    }\n};\n\n\n// The option directive is purely designed to communicate the existence (or lack of)\n// of dynamically created (and destroyed) option elements to their containing select\n// directive via its controller.\nvar optionDirective = ['$interpolate', function($interpolate) {\n  return {\n    restrict: 'E',\n    priority: 100,\n    compile: function(element, attr) {\n      var interpolateValueFn, interpolateTextFn;\n\n      if (isDefined(attr.ngValue)) {\n        // Will be handled by registerOption\n      } else if (isDefined(attr.value)) {\n        // If the value attribute is defined, check if it contains an interpolation\n        interpolateValueFn = $interpolate(attr.value, true);\n      } else {\n        // If the value attribute is not defined then we fall back to the\n        // text content of the option element, which may be interpolated\n        interpolateTextFn = $interpolate(element.text(), true);\n        if (!interpolateTextFn) {\n          attr.$set('value', element.text());\n        }\n      }\n\n      return function(scope, element, attr) {\n        // This is an optimization over using ^^ since we don't want to have to search\n        // all the way to the root of the DOM for every single option element\n        var selectCtrlName = '$selectController',\n            parent = element.parent(),\n            selectCtrl = parent.data(selectCtrlName) ||\n              parent.parent().data(selectCtrlName); // in case we are in optgroup\n\n        if (selectCtrl) {\n          selectCtrl.registerOption(scope, element, attr, interpolateValueFn, interpolateTextFn);\n        }\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngRequired\n * @restrict A\n *\n * @param {expression} ngRequired AngularJS expression. If it evaluates to `true`, it sets the\n *                                `required` attribute to the element and adds the `required`\n *                                {@link ngModel.NgModelController#$validators `validator`}.\n *\n * @description\n *\n * ngRequired adds the required {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for {@link input `input`} and {@link select `select`} controls, but can also be\n * applied to custom controls.\n *\n * The directive sets the `required` attribute on the element if the AngularJS expression inside\n * `ngRequired` evaluates to true. A special directive for setting `required` is necessary because we\n * cannot use interpolation inside `required`. See the {@link guide/interpolation interpolation guide}\n * for more info.\n *\n * The validator will set the `required` error key to true if the `required` attribute is set and\n * calling {@link ngModel.NgModelController#$isEmpty `NgModelController.$isEmpty`} with the\n * {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`} returns `true`. For example, the\n * `$isEmpty()` implementation for `input[text]` checks the length of the `$viewValue`. When developing\n * custom controls, `$isEmpty()` can be overwritten to account for a $viewValue that is not string-based.\n *\n * @example\n * <example name=\"ngRequiredDirective\" module=\"ngRequiredExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngRequiredExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.required = true;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"required\">Toggle required: </label>\n *         <input type=\"checkbox\" ng-model=\"required\" id=\"required\" />\n *         <br>\n *         <label for=\"input\">This input must be filled if `required` is true: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-required=\"required\" /><br>\n *         <hr>\n *         required error set? = <code>{{form.input.$error.required}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var required = element(by.binding('form.input.$error.required'));\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should set the required error', function() {\n         expect(required.getText()).toContain('true');\n\n         input.sendKeys('123');\n         expect(required.getText()).not.toContain('true');\n         expect(model.getText()).toContain('123');\n       });\n *   </file>\n * </example>\n */\nvar requiredDirective = ['$parse', function($parse) {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n      // For boolean attributes like required, presence means true\n      var value = attr.hasOwnProperty('required') || $parse(attr.ngRequired)(scope);\n\n      if (!attr.ngRequired) {\n        // force truthy in case we are on non input element\n        // (input elements do this automatically for boolean attributes like required)\n        attr.required = true;\n      }\n\n      ctrl.$validators.required = function(modelValue, viewValue) {\n        return !value || !ctrl.$isEmpty(viewValue);\n      };\n\n      attr.$observe('required', function(newVal) {\n\n        if (value !== newVal) {\n          value = newVal;\n          ctrl.$validate();\n        }\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngPattern\n * @restrict A\n *\n * @param {expression|RegExp} ngPattern AngularJS expression that must evaluate to a `RegExp` or a `String`\n *                                      parsable into a `RegExp`, or a `RegExp` literal. See above for\n *                                      more details.\n *\n * @description\n *\n * ngPattern adds the pattern {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `pattern` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * does not match a RegExp which is obtained from the `ngPattern` attribute value:\n * - the value is an AngularJS expression:\n *   - If the expression evaluates to a RegExp object, then this is used directly.\n *   - If the expression evaluates to a string, then it will be converted to a RegExp after wrapping it\n *     in `^` and `$` characters. For instance, `\"abc\"` will be converted to `new RegExp('^abc$')`.\n * - If the value is a RegExp literal, e.g. `ngPattern=\"/^\\d+$/\"`, it is used directly.\n *\n * <div class=\"alert alert-info\">\n * **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to\n * start at the index of the last search's match, thus not taking the whole input value into\n * account.\n * </div>\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `pattern` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngPattern` does not set the `pattern` attribute and therefore HTML5 constraint validation is\n *     not available.\n *   </li>\n *   <li>\n *     The `ngPattern` attribute must be an expression, while the `pattern` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngPatternDirective\" module=\"ngPatternExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngPatternExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.regex = '\\\\d+';\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"regex\">Set a pattern (regex string): </label>\n *         <input type=\"text\" ng-model=\"regex\" id=\"regex\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current pattern: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-pattern=\"regex\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default pattern', function() {\n         input.sendKeys('aaa');\n         expect(model.getText()).not.toContain('aaa');\n\n         input.clear().then(function() {\n           input.sendKeys('123');\n           expect(model.getText()).toContain('123');\n         });\n       });\n *   </file>\n * </example>\n */\nvar patternDirective = ['$parse', function($parse) {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    compile: function(tElm, tAttr) {\n      var patternExp;\n      var parseFn;\n\n      if (tAttr.ngPattern) {\n        patternExp = tAttr.ngPattern;\n\n        // ngPattern might be a scope expression, or an inlined regex, which is not parsable.\n        // We get value of the attribute here, so we can compare the old and the new value\n        // in the observer to avoid unnecessary validations\n        if (tAttr.ngPattern.charAt(0) === '/' && REGEX_STRING_REGEXP.test(tAttr.ngPattern)) {\n          parseFn = function() { return tAttr.ngPattern; };\n        } else {\n          parseFn = $parse(tAttr.ngPattern);\n        }\n      }\n\n      return function(scope, elm, attr, ctrl) {\n        if (!ctrl) return;\n\n        var attrVal = attr.pattern;\n\n        if (attr.ngPattern) {\n          attrVal = parseFn(scope);\n        } else {\n          patternExp = attr.pattern;\n        }\n\n        var regexp = parsePatternAttr(attrVal, patternExp, elm);\n\n        attr.$observe('pattern', function(newVal) {\n          var oldRegexp = regexp;\n\n          regexp = parsePatternAttr(newVal, patternExp, elm);\n\n          if ((oldRegexp && oldRegexp.toString()) !== (regexp && regexp.toString())) {\n            ctrl.$validate();\n          }\n        });\n\n        ctrl.$validators.pattern = function(modelValue, viewValue) {\n          // HTML5 pattern constraint validates the input value, so we validate the viewValue\n          return ctrl.$isEmpty(viewValue) || isUndefined(regexp) || regexp.test(viewValue);\n        };\n      };\n    }\n\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngMaxlength\n * @restrict A\n *\n * @param {expression} ngMaxlength AngularJS expression that must evaluate to a `Number` or `String`\n *                                 parsable into a `Number`. Used as value for the `maxlength`\n *                                 {@link ngModel.NgModelController#$validators validator}.\n *\n * @description\n *\n * ngMaxlength adds the maxlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `maxlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * is longer than the integer obtained by evaluating the AngularJS expression given in the\n * `ngMaxlength` attribute value.\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `maxlength` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngMaxlength` does not set the `maxlength` attribute and therefore HTML5 constraint\n *     validation is not available.\n *   </li>\n *   <li>\n *     The `ngMaxlength` attribute must be an expression, while the `maxlength` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngMaxlengthDirective\" module=\"ngMaxlengthExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngMaxlengthExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.maxlength = 5;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"maxlength\">Set a maxlength: </label>\n *         <input type=\"number\" ng-model=\"maxlength\" id=\"maxlength\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current maxlength: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-maxlength=\"maxlength\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default maxlength', function() {\n         input.sendKeys('abcdef');\n         expect(model.getText()).not.toContain('abcdef');\n\n         input.clear().then(function() {\n           input.sendKeys('abcde');\n           expect(model.getText()).toContain('abcde');\n         });\n       });\n *   </file>\n * </example>\n */\nvar maxlengthDirective = ['$parse', function($parse) {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var maxlength = attr.maxlength || $parse(attr.ngMaxlength)(scope);\n      var maxlengthParsed = parseLength(maxlength);\n\n      attr.$observe('maxlength', function(value) {\n        if (maxlength !== value) {\n          maxlengthParsed = parseLength(value);\n          maxlength = value;\n          ctrl.$validate();\n        }\n      });\n      ctrl.$validators.maxlength = function(modelValue, viewValue) {\n        return (maxlengthParsed < 0) || ctrl.$isEmpty(viewValue) || (viewValue.length <= maxlengthParsed);\n      };\n    }\n  };\n}];\n\n/**\n * @ngdoc directive\n * @name ngMinlength\n * @restrict A\n *\n * @param {expression} ngMinlength AngularJS expression that must evaluate to a `Number` or `String`\n *                                 parsable into a `Number`. Used as value for the `minlength`\n *                                 {@link ngModel.NgModelController#$validators validator}.\n *\n * @description\n *\n * ngMinlength adds the minlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.\n * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.\n *\n * The validator sets the `minlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}\n * is shorter than the integer obtained by evaluating the AngularJS expression given in the\n * `ngMinlength` attribute value.\n *\n * <div class=\"alert alert-info\">\n * **Note:** This directive is also added when the plain `minlength` attribute is used, with two\n * differences:\n * <ol>\n *   <li>\n *     `ngMinlength` does not set the `minlength` attribute and therefore HTML5 constraint\n *     validation is not available.\n *   </li>\n *   <li>\n *     The `ngMinlength` value must be an expression, while the `minlength` value must be\n *     interpolated.\n *   </li>\n * </ol>\n * </div>\n *\n * @example\n * <example name=\"ngMinlengthDirective\" module=\"ngMinlengthExample\">\n *   <file name=\"index.html\">\n *     <script>\n *       angular.module('ngMinlengthExample', [])\n *         .controller('ExampleController', ['$scope', function($scope) {\n *           $scope.minlength = 3;\n *         }]);\n *     </script>\n *     <div ng-controller=\"ExampleController\">\n *       <form name=\"form\">\n *         <label for=\"minlength\">Set a minlength: </label>\n *         <input type=\"number\" ng-model=\"minlength\" id=\"minlength\" />\n *         <br>\n *         <label for=\"input\">This input is restricted by the current minlength: </label>\n *         <input type=\"text\" ng-model=\"model\" id=\"input\" name=\"input\" ng-minlength=\"minlength\" /><br>\n *         <hr>\n *         input valid? = <code>{{form.input.$valid}}</code><br>\n *         model = <code>{{model}}</code>\n *       </form>\n *     </div>\n *   </file>\n *   <file name=\"protractor.js\" type=\"protractor\">\n       var model = element(by.binding('model'));\n       var input = element(by.id('input'));\n\n       it('should validate the input with the default minlength', function() {\n         input.sendKeys('ab');\n         expect(model.getText()).not.toContain('ab');\n\n         input.sendKeys('abc');\n         expect(model.getText()).toContain('abc');\n       });\n *   </file>\n * </example>\n */\nvar minlengthDirective = ['$parse', function($parse) {\n  return {\n    restrict: 'A',\n    require: '?ngModel',\n    link: function(scope, elm, attr, ctrl) {\n      if (!ctrl) return;\n\n      var minlength = attr.minlength || $parse(attr.ngMinlength)(scope);\n      var minlengthParsed = parseLength(minlength) || -1;\n\n      attr.$observe('minlength', function(value) {\n        if (minlength !== value) {\n          minlengthParsed = parseLength(value) || -1;\n          minlength = value;\n          ctrl.$validate();\n        }\n\n      });\n      ctrl.$validators.minlength = function(modelValue, viewValue) {\n        return ctrl.$isEmpty(viewValue) || viewValue.length >= minlengthParsed;\n      };\n    }\n  };\n}];\n\n\nfunction parsePatternAttr(regex, patternExp, elm) {\n  if (!regex) return undefined;\n\n  if (isString(regex)) {\n    regex = new RegExp('^' + regex + '$');\n  }\n\n  if (!regex.test) {\n    throw minErr('ngPattern')('noregexp',\n      'Expected {0} to be a RegExp but was {1}. Element: {2}', patternExp,\n      regex, startingTag(elm));\n  }\n\n  return regex;\n}\n\nfunction parseLength(val) {\n  var intVal = toInt(val);\n  return isNumberNaN(intVal) ? -1 : intVal;\n}\n\nif (window.angular.bootstrap) {\n  // AngularJS is already loaded, so we can return here...\n  if (window.console) {\n    console.log('WARNING: Tried to load AngularJS more than once.');\n  }\n  return;\n}\n\n// try to bind to jquery now so that one can write jqLite(fn)\n// but we will rebind on bootstrap again.\nbindJQuery();\n\npublishExternalAPI(angular);\n\nangular.module(\"ngLocale\", [], [\"$provide\", function($provide) {\nvar PLURAL_CATEGORY = {ZERO: \"zero\", ONE: \"one\", TWO: \"two\", FEW: \"few\", MANY: \"many\", OTHER: \"other\"};\nfunction getDecimals(n) {\n  n = n + '';\n  var i = n.indexOf('.');\n  return (i == -1) ? 0 : n.length - i - 1;\n}\n\nfunction getVF(n, opt_precision) {\n  var v = opt_precision;\n\n  if (undefined === v) {\n    v = Math.min(getDecimals(n), 3);\n  }\n\n  var base = Math.pow(10, v);\n  var f = ((n * base) | 0) % base;\n  return {v: v, f: f};\n}\n\n$provide.value(\"$locale\", {\n  \"DATETIME_FORMATS\": {\n    \"AMPMS\": [\n      \"AM\",\n      \"PM\"\n    ],\n    \"DAY\": [\n      \"Sunday\",\n      \"Monday\",\n      \"Tuesday\",\n      \"Wednesday\",\n      \"Thursday\",\n      \"Friday\",\n      \"Saturday\"\n    ],\n    \"ERANAMES\": [\n      \"Before Christ\",\n      \"Anno Domini\"\n    ],\n    \"ERAS\": [\n      \"BC\",\n      \"AD\"\n    ],\n    \"FIRSTDAYOFWEEK\": 6,\n    \"MONTH\": [\n      \"January\",\n      \"February\",\n      \"March\",\n      \"April\",\n      \"May\",\n      \"June\",\n      \"July\",\n      \"August\",\n      \"September\",\n      \"October\",\n      \"November\",\n      \"December\"\n    ],\n    \"SHORTDAY\": [\n      \"Sun\",\n      \"Mon\",\n      \"Tue\",\n      \"Wed\",\n      \"Thu\",\n      \"Fri\",\n      \"Sat\"\n    ],\n    \"SHORTMONTH\": [\n      \"Jan\",\n      \"Feb\",\n      \"Mar\",\n      \"Apr\",\n      \"May\",\n      \"Jun\",\n      \"Jul\",\n      \"Aug\",\n      \"Sep\",\n      \"Oct\",\n      \"Nov\",\n      \"Dec\"\n    ],\n    \"STANDALONEMONTH\": [\n      \"January\",\n      \"February\",\n      \"March\",\n      \"April\",\n      \"May\",\n      \"June\",\n      \"July\",\n      \"August\",\n      \"September\",\n      \"October\",\n      \"November\",\n      \"December\"\n    ],\n    \"WEEKENDRANGE\": [\n      5,\n      6\n    ],\n    \"fullDate\": \"EEEE, MMMM d, y\",\n    \"longDate\": \"MMMM d, y\",\n    \"medium\": \"MMM d, y h:mm:ss a\",\n    \"mediumDate\": \"MMM d, y\",\n    \"mediumTime\": \"h:mm:ss a\",\n    \"short\": \"M/d/yy h:mm a\",\n    \"shortDate\": \"M/d/yy\",\n    \"shortTime\": \"h:mm a\"\n  },\n  \"NUMBER_FORMATS\": {\n    \"CURRENCY_SYM\": \"$\",\n    \"DECIMAL_SEP\": \".\",\n    \"GROUP_SEP\": \",\",\n    \"PATTERNS\": [\n      {\n        \"gSize\": 3,\n        \"lgSize\": 3,\n        \"maxFrac\": 3,\n        \"minFrac\": 0,\n        \"minInt\": 1,\n        \"negPre\": \"-\",\n        \"negSuf\": \"\",\n        \"posPre\": \"\",\n        \"posSuf\": \"\"\n      },\n      {\n        \"gSize\": 3,\n        \"lgSize\": 3,\n        \"maxFrac\": 2,\n        \"minFrac\": 2,\n        \"minInt\": 1,\n        \"negPre\": \"-\\u00a4\",\n        \"negSuf\": \"\",\n        \"posPre\": \"\\u00a4\",\n        \"posSuf\": \"\"\n      }\n    ]\n  },\n  \"id\": \"en-us\",\n  \"localeID\": \"en_US\",\n  \"pluralCat\": function(n, opt_precision) {  var i = n | 0;  var vf = getVF(n, opt_precision);  if (i == 1 && vf.v == 0) {    return PLURAL_CATEGORY.ONE;  }  return PLURAL_CATEGORY.OTHER;}\n});\n}]);\n\n  jqLite(function() {\n    angularInit(window.document, bootstrap);\n  });\n\n})(window);\n\n!window.angular.$$csp().noInlineStyle && window.angular.element(document.head).prepend(window.angular.element('<style>').text('@charset \"UTF-8\";[ng\\\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\\\\:form{display:block;}.ng-animate-shim{visibility:hidden;}.ng-anchor{position:absolute;}'));\n/**\n * @license AngularJS v1.8.3\n * (c) 2010-2020 Google LLC. http://angularjs.org\n * License: MIT\n */\n(function(window, angular) {'use strict';\n\nvar ELEMENT_NODE = 1;\nvar COMMENT_NODE = 8;\n\nvar ADD_CLASS_SUFFIX = '-add';\nvar REMOVE_CLASS_SUFFIX = '-remove';\nvar EVENT_CLASS_PREFIX = 'ng-';\nvar ACTIVE_CLASS_SUFFIX = '-active';\nvar PREPARE_CLASS_SUFFIX = '-prepare';\n\nvar NG_ANIMATE_CLASSNAME = 'ng-animate';\nvar NG_ANIMATE_CHILDREN_DATA = '$$ngAnimateChildren';\n\n// Detect proper transitionend/animationend event names.\nvar CSS_PREFIX = '', TRANSITION_PROP, TRANSITIONEND_EVENT, ANIMATION_PROP, ANIMATIONEND_EVENT;\n\n// If unprefixed events are not supported but webkit-prefixed are, use the latter.\n// Otherwise, just use W3C names, browsers not supporting them at all will just ignore them.\n// Note: Chrome implements `window.onwebkitanimationend` and doesn't implement `window.onanimationend`\n// but at the same time dispatches the `animationend` event and not `webkitAnimationEnd`.\n// Register both events in case `window.onanimationend` is not supported because of that,\n// do the same for `transitionend` as Safari is likely to exhibit similar behavior.\n// Also, the only modern browser that uses vendor prefixes for transitions/keyframes is webkit\n// therefore there is no reason to test anymore for other vendor prefixes:\n// http://caniuse.com/#search=transition\nif ((window.ontransitionend === undefined) && (window.onwebkittransitionend !== undefined)) {\n  CSS_PREFIX = '-webkit-';\n  TRANSITION_PROP = 'WebkitTransition';\n  TRANSITIONEND_EVENT = 'webkitTransitionEnd transitionend';\n} else {\n  TRANSITION_PROP = 'transition';\n  TRANSITIONEND_EVENT = 'transitionend';\n}\n\nif ((window.onanimationend === undefined) && (window.onwebkitanimationend !== undefined)) {\n  CSS_PREFIX = '-webkit-';\n  ANIMATION_PROP = 'WebkitAnimation';\n  ANIMATIONEND_EVENT = 'webkitAnimationEnd animationend';\n} else {\n  ANIMATION_PROP = 'animation';\n  ANIMATIONEND_EVENT = 'animationend';\n}\n\nvar DURATION_KEY = 'Duration';\nvar PROPERTY_KEY = 'Property';\nvar DELAY_KEY = 'Delay';\nvar TIMING_KEY = 'TimingFunction';\nvar ANIMATION_ITERATION_COUNT_KEY = 'IterationCount';\nvar ANIMATION_PLAYSTATE_KEY = 'PlayState';\nvar SAFE_FAST_FORWARD_DURATION_VALUE = 9999;\n\nvar ANIMATION_DELAY_PROP = ANIMATION_PROP + DELAY_KEY;\nvar ANIMATION_DURATION_PROP = ANIMATION_PROP + DURATION_KEY;\nvar TRANSITION_DELAY_PROP = TRANSITION_PROP + DELAY_KEY;\nvar TRANSITION_DURATION_PROP = TRANSITION_PROP + DURATION_KEY;\n\nvar ngMinErr = angular.$$minErr('ng');\nfunction assertArg(arg, name, reason) {\n  if (!arg) {\n    throw ngMinErr('areq', 'Argument \\'{0}\\' is {1}', (name || '?'), (reason || 'required'));\n  }\n  return arg;\n}\n\nfunction mergeClasses(a,b) {\n  if (!a && !b) return '';\n  if (!a) return b;\n  if (!b) return a;\n  if (isArray(a)) a = a.join(' ');\n  if (isArray(b)) b = b.join(' ');\n  return a + ' ' + b;\n}\n\nfunction packageStyles(options) {\n  var styles = {};\n  if (options && (options.to || options.from)) {\n    styles.to = options.to;\n    styles.from = options.from;\n  }\n  return styles;\n}\n\nfunction pendClasses(classes, fix, isPrefix) {\n  var className = '';\n  classes = isArray(classes)\n      ? classes\n      : classes && isString(classes) && classes.length\n          ? classes.split(/\\s+/)\n          : [];\n  forEach(classes, function(klass, i) {\n    if (klass && klass.length > 0) {\n      className += (i > 0) ? ' ' : '';\n      className += isPrefix ? fix + klass\n                            : klass + fix;\n    }\n  });\n  return className;\n}\n\nfunction removeFromArray(arr, val) {\n  var index = arr.indexOf(val);\n  if (val >= 0) {\n    arr.splice(index, 1);\n  }\n}\n\nfunction stripCommentsFromElement(element) {\n  if (element instanceof jqLite) {\n    switch (element.length) {\n      case 0:\n        return element;\n\n      case 1:\n        // there is no point of stripping anything if the element\n        // is the only element within the jqLite wrapper.\n        // (it's important that we retain the element instance.)\n        if (element[0].nodeType === ELEMENT_NODE) {\n          return element;\n        }\n        break;\n\n      default:\n        return jqLite(extractElementNode(element));\n    }\n  }\n\n  if (element.nodeType === ELEMENT_NODE) {\n    return jqLite(element);\n  }\n}\n\nfunction extractElementNode(element) {\n  if (!element[0]) return element;\n  for (var i = 0; i < element.length; i++) {\n    var elm = element[i];\n    if (elm.nodeType === ELEMENT_NODE) {\n      return elm;\n    }\n  }\n}\n\nfunction $$addClass($$jqLite, element, className) {\n  forEach(element, function(elm) {\n    $$jqLite.addClass(elm, className);\n  });\n}\n\nfunction $$removeClass($$jqLite, element, className) {\n  forEach(element, function(elm) {\n    $$jqLite.removeClass(elm, className);\n  });\n}\n\nfunction applyAnimationClassesFactory($$jqLite) {\n  return function(element, options) {\n    if (options.addClass) {\n      $$addClass($$jqLite, element, options.addClass);\n      options.addClass = null;\n    }\n    if (options.removeClass) {\n      $$removeClass($$jqLite, element, options.removeClass);\n      options.removeClass = null;\n    }\n  };\n}\n\nfunction prepareAnimationOptions(options) {\n  options = options || {};\n  if (!options.$$prepared) {\n    var domOperation = options.domOperation || noop;\n    options.domOperation = function() {\n      options.$$domOperationFired = true;\n      domOperation();\n      domOperation = noop;\n    };\n    options.$$prepared = true;\n  }\n  return options;\n}\n\nfunction applyAnimationStyles(element, options) {\n  applyAnimationFromStyles(element, options);\n  applyAnimationToStyles(element, options);\n}\n\nfunction applyAnimationFromStyles(element, options) {\n  if (options.from) {\n    element.css(options.from);\n    options.from = null;\n  }\n}\n\nfunction applyAnimationToStyles(element, options) {\n  if (options.to) {\n    element.css(options.to);\n    options.to = null;\n  }\n}\n\nfunction mergeAnimationDetails(element, oldAnimation, newAnimation) {\n  var target = oldAnimation.options || {};\n  var newOptions = newAnimation.options || {};\n\n  var toAdd = (target.addClass || '') + ' ' + (newOptions.addClass || '');\n  var toRemove = (target.removeClass || '') + ' ' + (newOptions.removeClass || '');\n  var classes = resolveElementClasses(element.attr('class'), toAdd, toRemove);\n\n  if (newOptions.preparationClasses) {\n    target.preparationClasses = concatWithSpace(newOptions.preparationClasses, target.preparationClasses);\n    delete newOptions.preparationClasses;\n  }\n\n  // noop is basically when there is no callback; otherwise something has been set\n  var realDomOperation = target.domOperation !== noop ? target.domOperation : null;\n\n  extend(target, newOptions);\n\n  // TODO(matsko or sreeramu): proper fix is to maintain all animation callback in array and call at last,but now only leave has the callback so no issue with this.\n  if (realDomOperation) {\n    target.domOperation = realDomOperation;\n  }\n\n  if (classes.addClass) {\n    target.addClass = classes.addClass;\n  } else {\n    target.addClass = null;\n  }\n\n  if (classes.removeClass) {\n    target.removeClass = classes.removeClass;\n  } else {\n    target.removeClass = null;\n  }\n\n  oldAnimation.addClass = target.addClass;\n  oldAnimation.removeClass = target.removeClass;\n\n  return target;\n}\n\nfunction resolveElementClasses(existing, toAdd, toRemove) {\n  var ADD_CLASS = 1;\n  var REMOVE_CLASS = -1;\n\n  var flags = {};\n  existing = splitClassesToLookup(existing);\n\n  toAdd = splitClassesToLookup(toAdd);\n  forEach(toAdd, function(value, key) {\n    flags[key] = ADD_CLASS;\n  });\n\n  toRemove = splitClassesToLookup(toRemove);\n  forEach(toRemove, function(value, key) {\n    flags[key] = flags[key] === ADD_CLASS ? null : REMOVE_CLASS;\n  });\n\n  var classes = {\n    addClass: '',\n    removeClass: ''\n  };\n\n  forEach(flags, function(val, klass) {\n    var prop, allow;\n    if (val === ADD_CLASS) {\n      prop = 'addClass';\n      allow = !existing[klass] || existing[klass + REMOVE_CLASS_SUFFIX];\n    } else if (val === REMOVE_CLASS) {\n      prop = 'removeClass';\n      allow = existing[klass] || existing[klass + ADD_CLASS_SUFFIX];\n    }\n    if (allow) {\n      if (classes[prop].length) {\n        classes[prop] += ' ';\n      }\n      classes[prop] += klass;\n    }\n  });\n\n  function splitClassesToLookup(classes) {\n    if (isString(classes)) {\n      classes = classes.split(' ');\n    }\n\n    var obj = {};\n    forEach(classes, function(klass) {\n      // sometimes the split leaves empty string values\n      // incase extra spaces were applied to the options\n      if (klass.length) {\n        obj[klass] = true;\n      }\n    });\n    return obj;\n  }\n\n  return classes;\n}\n\nfunction getDomNode(element) {\n  return (element instanceof jqLite) ? element[0] : element;\n}\n\nfunction applyGeneratedPreparationClasses($$jqLite, element, event, options) {\n  var classes = '';\n  if (event) {\n    classes = pendClasses(event, EVENT_CLASS_PREFIX, true);\n  }\n  if (options.addClass) {\n    classes = concatWithSpace(classes, pendClasses(options.addClass, ADD_CLASS_SUFFIX));\n  }\n  if (options.removeClass) {\n    classes = concatWithSpace(classes, pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX));\n  }\n  if (classes.length) {\n    options.preparationClasses = classes;\n    element.addClass(classes);\n  }\n}\n\nfunction clearGeneratedClasses(element, options) {\n  if (options.preparationClasses) {\n    element.removeClass(options.preparationClasses);\n    options.preparationClasses = null;\n  }\n  if (options.activeClasses) {\n    element.removeClass(options.activeClasses);\n    options.activeClasses = null;\n  }\n}\n\nfunction blockKeyframeAnimations(node, applyBlock) {\n  var value = applyBlock ? 'paused' : '';\n  var key = ANIMATION_PROP + ANIMATION_PLAYSTATE_KEY;\n  applyInlineStyle(node, [key, value]);\n  return [key, value];\n}\n\nfunction applyInlineStyle(node, styleTuple) {\n  var prop = styleTuple[0];\n  var value = styleTuple[1];\n  node.style[prop] = value;\n}\n\nfunction concatWithSpace(a,b) {\n  if (!a) return b;\n  if (!b) return a;\n  return a + ' ' + b;\n}\n\nvar helpers = {\n  blockTransitions: function(node, duration) {\n    // we use a negative delay value since it performs blocking\n    // yet it doesn't kill any existing transitions running on the\n    // same element which makes this safe for class-based animations\n    var value = duration ? '-' + duration + 's' : '';\n    applyInlineStyle(node, [TRANSITION_DELAY_PROP, value]);\n    return [TRANSITION_DELAY_PROP, value];\n  }\n};\n\nvar $$rAFSchedulerFactory = ['$$rAF', function($$rAF) {\n  var queue, cancelFn;\n\n  function scheduler(tasks) {\n    // we make a copy since RAFScheduler mutates the state\n    // of the passed in array variable and this would be difficult\n    // to track down on the outside code\n    queue = queue.concat(tasks);\n    nextTick();\n  }\n\n  queue = scheduler.queue = [];\n\n  /* waitUntilQuiet does two things:\n   * 1. It will run the FINAL `fn` value only when an uncanceled RAF has passed through\n   * 2. It will delay the next wave of tasks from running until the quiet `fn` has run.\n   *\n   * The motivation here is that animation code can request more time from the scheduler\n   * before the next wave runs. This allows for certain DOM properties such as classes to\n   * be resolved in time for the next animation to run.\n   */\n  scheduler.waitUntilQuiet = function(fn) {\n    if (cancelFn) cancelFn();\n\n    cancelFn = $$rAF(function() {\n      cancelFn = null;\n      fn();\n      nextTick();\n    });\n  };\n\n  return scheduler;\n\n  function nextTick() {\n    if (!queue.length) return;\n\n    var items = queue.shift();\n    for (var i = 0; i < items.length; i++) {\n      items[i]();\n    }\n\n    if (!cancelFn) {\n      $$rAF(function() {\n        if (!cancelFn) nextTick();\n      });\n    }\n  }\n}];\n\n/**\n * @ngdoc directive\n * @name ngAnimateChildren\n * @restrict AE\n * @element ANY\n *\n * @description\n *\n * ngAnimateChildren allows you to specify that children of this element should animate even if any\n * of the children's parents are currently animating. By default, when an element has an active `enter`, `leave`, or `move`\n * (structural) animation, child elements that also have an active structural animation are not animated.\n *\n * Note that even if `ngAnimateChildren` is set, no child animations will run when the parent element is removed from the DOM (`leave` animation).\n *\n *\n * @param {string} ngAnimateChildren If the value is empty, `true` or `on`,\n *     then child animations are allowed. If the value is `false`, child animations are not allowed.\n *\n * @example\n * <example module=\"ngAnimateChildren\" name=\"ngAnimateChildren\" deps=\"angular-animate.js\" animations=\"true\">\n     <file name=\"index.html\">\n       <div ng-controller=\"MainController as main\">\n         <label>Show container? <input type=\"checkbox\" ng-model=\"main.enterElement\" /></label>\n         <label>Animate children? <input type=\"checkbox\" ng-model=\"main.animateChildren\" /></label>\n         <hr>\n         <div ng-animate-children=\"{{main.animateChildren}}\">\n           <div ng-if=\"main.enterElement\" class=\"container\">\n             List of items:\n             <div ng-repeat=\"item in [0, 1, 2, 3]\" class=\"item\">Item {{item}}</div>\n           </div>\n         </div>\n       </div>\n     </file>\n     <file name=\"animations.css\">\n\n      .container.ng-enter,\n      .container.ng-leave {\n        transition: all ease 1.5s;\n      }\n\n      .container.ng-enter,\n      .container.ng-leave-active {\n        opacity: 0;\n      }\n\n      .container.ng-leave,\n      .container.ng-enter-active {\n        opacity: 1;\n      }\n\n      .item {\n        background: firebrick;\n        color: #FFF;\n        margin-bottom: 10px;\n      }\n\n      .item.ng-enter,\n      .item.ng-leave {\n        transition: transform 1.5s ease;\n      }\n\n      .item.ng-enter {\n        transform: translateX(50px);\n      }\n\n      .item.ng-enter-active {\n        transform: translateX(0);\n      }\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngAnimateChildren', ['ngAnimate'])\n        .controller('MainController', function MainController() {\n          this.animateChildren = false;\n          this.enterElement = false;\n        });\n    </file>\n  </example>\n */\nvar $$AnimateChildrenDirective = ['$interpolate', function($interpolate) {\n  return {\n    link: function(scope, element, attrs) {\n      var val = attrs.ngAnimateChildren;\n      if (isString(val) && val.length === 0) { //empty attribute\n        element.data(NG_ANIMATE_CHILDREN_DATA, true);\n      } else {\n        // Interpolate and set the value, so that it is available to\n        // animations that run right after compilation\n        setData($interpolate(val)(scope));\n        attrs.$observe('ngAnimateChildren', setData);\n      }\n\n      function setData(value) {\n        value = value === 'on' || value === 'true';\n        element.data(NG_ANIMATE_CHILDREN_DATA, value);\n      }\n    }\n  };\n}];\n\n/* exported $AnimateCssProvider */\n\nvar ANIMATE_TIMER_KEY = '$$animateCss';\n\n/**\n * @ngdoc service\n * @name $animateCss\n * @kind object\n *\n * @description\n * The `$animateCss` service is a useful utility to trigger customized CSS-based transitions/keyframes\n * from a JavaScript-based animation or directly from a directive. The purpose of `$animateCss` is NOT\n * to side-step how `$animate` and ngAnimate work, but the goal is to allow pre-existing animations or\n * directives to create more complex animations that can be purely driven using CSS code.\n *\n * Note that only browsers that support CSS transitions and/or keyframe animations are capable of\n * rendering animations triggered via `$animateCss` (bad news for IE9 and lower).\n *\n * ## General Use\n * Once again, `$animateCss` is designed to be used inside of a registered JavaScript animation that\n * is powered by ngAnimate. It is possible to use `$animateCss` directly inside of a directive, however,\n * any automatic control over cancelling animations and/or preventing animations from being run on\n * child elements will not be handled by AngularJS. For this to work as expected, please use `$animate` to\n * trigger the animation and then setup a JavaScript animation that injects `$animateCss` to trigger\n * the CSS animation.\n *\n * The example below shows how we can create a folding animation on an element using `ng-if`:\n *\n * ```html\n * <!-- notice the `fold-animation` CSS class -->\n * <div ng-if=\"onOff\" class=\"fold-animation\">\n *   This element will go BOOM\n * </div>\n * <button ng-click=\"onOff=true\">Fold In</button>\n * ```\n *\n * Now we create the **JavaScript animation** that will trigger the CSS transition:\n *\n * ```js\n * ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element, doneFn) {\n *       var height = element[0].offsetHeight;\n *       return $animateCss(element, {\n *         from: { height:'0px' },\n *         to: { height:height + 'px' },\n *         duration: 1 // one second\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * ## More Advanced Uses\n *\n * `$animateCss` is the underlying code that ngAnimate uses to power **CSS-based animations** behind the scenes. Therefore CSS hooks\n * like `.ng-EVENT`, `.ng-EVENT-active`, `.ng-EVENT-stagger` are all features that can be triggered using `$animateCss` via JavaScript code.\n *\n * This also means that just about any combination of adding classes, removing classes, setting styles, dynamically setting a keyframe animation,\n * applying a hardcoded duration or delay value, changing the animation easing or applying a stagger animation are all options that work with\n * `$animateCss`. The service itself is smart enough to figure out the combination of options and examine the element styling properties in order\n * to provide a working animation that will run in CSS.\n *\n * The example below showcases a more advanced version of the `.fold-animation` from the example above:\n *\n * ```js\n * ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element, doneFn) {\n *       var height = element[0].offsetHeight;\n *       return $animateCss(element, {\n *         addClass: 'red large-text pulse-twice',\n *         easing: 'ease-out',\n *         from: { height:'0px' },\n *         to: { height:height + 'px' },\n *         duration: 1 // one second\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * Since we're adding/removing CSS classes then the CSS transition will also pick those up:\n *\n * ```css\n * /&#42; since a hardcoded duration value of 1 was provided in the JavaScript animation code,\n * the CSS classes below will be transitioned despite them being defined as regular CSS classes &#42;/\n * .red { background:red; }\n * .large-text { font-size:20px; }\n *\n * /&#42; we can also use a keyframe animation and $animateCss will make it work alongside the transition &#42;/\n * .pulse-twice {\n *   animation: 0.5s pulse linear 2;\n *   -webkit-animation: 0.5s pulse linear 2;\n * }\n *\n * @keyframes pulse {\n *   from { transform: scale(0.5); }\n *   to { transform: scale(1.5); }\n * }\n *\n * @-webkit-keyframes pulse {\n *   from { -webkit-transform: scale(0.5); }\n *   to { -webkit-transform: scale(1.5); }\n * }\n * ```\n *\n * Given this complex combination of CSS classes, styles and options, `$animateCss` will figure everything out and make the animation happen.\n *\n * ## How the Options are handled\n *\n * `$animateCss` is very versatile and intelligent when it comes to figuring out what configurations to apply to the element to ensure the animation\n * works with the options provided. Say for example we were adding a class that contained a keyframe value and we wanted to also animate some inline\n * styles using the `from` and `to` properties.\n *\n * ```js\n * var animator = $animateCss(element, {\n *   from: { background:'red' },\n *   to: { background:'blue' }\n * });\n * animator.start();\n * ```\n *\n * ```css\n * .rotating-animation {\n *   animation:0.5s rotate linear;\n *   -webkit-animation:0.5s rotate linear;\n * }\n *\n * @keyframes rotate {\n *   from { transform: rotate(0deg); }\n *   to { transform: rotate(360deg); }\n * }\n *\n * @-webkit-keyframes rotate {\n *   from { -webkit-transform: rotate(0deg); }\n *   to { -webkit-transform: rotate(360deg); }\n * }\n * ```\n *\n * The missing pieces here are that we do not have a transition set (within the CSS code nor within the `$animateCss` options) and the duration of the animation is\n * going to be detected from what the keyframe styles on the CSS class are. In this event, `$animateCss` will automatically create an inline transition\n * style matching the duration detected from the keyframe style (which is present in the CSS class that is being added) and then prepare both the transition\n * and keyframe animations to run in parallel on the element. Then when the animation is underway the provided `from` and `to` CSS styles will be applied\n * and spread across the transition and keyframe animation.\n *\n * ## What is returned\n *\n * `$animateCss` works in two stages: a preparation phase and an animation phase. Therefore when `$animateCss` is first called it will NOT actually\n * start the animation. All that is going on here is that the element is being prepared for the animation (which means that the generated CSS classes are\n * added and removed on the element). Once `$animateCss` is called it will return an object with the following properties:\n *\n * ```js\n * var animator = $animateCss(element, { ... });\n * ```\n *\n * Now what do the contents of our `animator` variable look like:\n *\n * ```js\n * {\n *   // starts the animation\n *   start: Function,\n *\n *   // ends (aborts) the animation\n *   end: Function\n * }\n * ```\n *\n * To actually start the animation we need to run `animation.start()` which will then return a promise that we can hook into to detect when the animation ends.\n * If we choose not to run the animation then we MUST run `animation.end()` to perform a cleanup on the element (since some CSS classes and styles may have been\n * applied to the element during the preparation phase). Note that all other properties such as duration, delay, transitions and keyframes are just properties\n * and that changing them will not reconfigure the parameters of the animation.\n *\n * ### runner.done() vs runner.then()\n * It is documented that `animation.start()` will return a promise object and this is true, however, there is also an additional method available on the\n * runner called `.done(callbackFn)`. The done method works the same as `.finally(callbackFn)`, however, it does **not trigger a digest to occur**.\n * Therefore, for performance reasons, it's always best to use `runner.done(callback)` instead of `runner.then()`, `runner.catch()` or `runner.finally()`\n * unless you really need a digest to kick off afterwards.\n *\n * Keep in mind that, to make this easier, ngAnimate has tweaked the JS animations API to recognize when a runner instance is returned from $animateCss\n * (so there is no need to call `runner.done(doneFn)` inside of your JavaScript animation code).\n * Check the {@link ngAnimate.$animateCss#usage animation code above} to see how this works.\n *\n * @param {DOMElement} element the element that will be animated\n * @param {object} options the animation-related options that will be applied during the animation\n *\n * * `event` - The DOM event (e.g. enter, leave, move). When used, a generated CSS class of `ng-EVENT` and `ng-EVENT-active` will be applied\n * to the element during the animation. Multiple events can be provided when spaces are used as a separator. (Note that this will not perform any DOM operation.)\n * * `structural` - Indicates that the `ng-` prefix will be added to the event class. Setting to `false` or omitting will turn `ng-EVENT` and\n * `ng-EVENT-active` in `EVENT` and `EVENT-active`. Unused if `event` is omitted.\n * * `easing` - The CSS easing value that will be applied to the transition or keyframe animation (or both).\n * * `transitionStyle` - The raw CSS transition style that will be used (e.g. `1s linear all`).\n * * `keyframeStyle` - The raw CSS keyframe animation style that will be used (e.g. `1s my_animation linear`).\n * * `from` - The starting CSS styles (a key/value object) that will be applied at the start of the animation.\n * * `to` - The ending CSS styles (a key/value object) that will be applied across the animation via a CSS transition.\n * * `addClass` - A space separated list of CSS classes that will be added to the element and spread across the animation.\n * * `removeClass` - A space separated list of CSS classes that will be removed from the element and spread across the animation.\n * * `duration` - A number value representing the total duration of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `0`\n * is provided then the animation will be skipped entirely.\n * * `delay` - A number value representing the total delay of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `true` is\n * used then whatever delay value is detected from the CSS classes will be mirrored on the elements styles (e.g. by setting delay true then the style value\n * of the element will be `transition-delay: DETECTED_VALUE`). Using `true` is useful when you want the CSS classes and inline styles to all share the same\n * CSS delay value.\n * * `stagger` - A numeric time value representing the delay between successively animated elements\n * ({@link ngAnimate#css-staggering-animations Click here to learn how CSS-based staggering works in ngAnimate.})\n * * `staggerIndex` - The numeric index representing the stagger item (e.g. a value of 5 is equal to the sixth item in the stagger; therefore when a\n *   `stagger` option value of `0.1` is used then there will be a stagger delay of `600ms`)\n * * `applyClassesEarly` - Whether or not the classes being added or removed will be used when detecting the animation. This is set by `$animate` when enter/leave/move animations are fired to ensure that the CSS classes are resolved in time. (Note that this will prevent any transitions from occurring on the classes being added and removed.)\n * * `cleanupStyles` - Whether or not the provided `from` and `to` styles will be removed once\n *    the animation is closed. This is useful for when the styles are used purely for the sake of\n *    the animation and do not have a lasting visual effect on the element (e.g. a collapse and open animation).\n *    By default this value is set to `false`.\n *\n * @return {object} an object with start and end methods and details about the animation.\n *\n * * `start` - The method to start the animation. This will return a `Promise` when called.\n * * `end` - This method will cancel the animation and remove all applied CSS classes and styles.\n */\nvar ONE_SECOND = 1000;\n\nvar ELAPSED_TIME_MAX_DECIMAL_PLACES = 3;\nvar CLOSING_TIME_BUFFER = 1.5;\n\nvar DETECT_CSS_PROPERTIES = {\n  transitionDuration:      TRANSITION_DURATION_PROP,\n  transitionDelay:         TRANSITION_DELAY_PROP,\n  transitionProperty:      TRANSITION_PROP + PROPERTY_KEY,\n  animationDuration:       ANIMATION_DURATION_PROP,\n  animationDelay:          ANIMATION_DELAY_PROP,\n  animationIterationCount: ANIMATION_PROP + ANIMATION_ITERATION_COUNT_KEY\n};\n\nvar DETECT_STAGGER_CSS_PROPERTIES = {\n  transitionDuration:      TRANSITION_DURATION_PROP,\n  transitionDelay:         TRANSITION_DELAY_PROP,\n  animationDuration:       ANIMATION_DURATION_PROP,\n  animationDelay:          ANIMATION_DELAY_PROP\n};\n\nfunction getCssKeyframeDurationStyle(duration) {\n  return [ANIMATION_DURATION_PROP, duration + 's'];\n}\n\nfunction getCssDelayStyle(delay, isKeyframeAnimation) {\n  var prop = isKeyframeAnimation ? ANIMATION_DELAY_PROP : TRANSITION_DELAY_PROP;\n  return [prop, delay + 's'];\n}\n\nfunction computeCssStyles($window, element, properties) {\n  var styles = Object.create(null);\n  var detectedStyles = $window.getComputedStyle(element) || {};\n  forEach(properties, function(formalStyleName, actualStyleName) {\n    var val = detectedStyles[formalStyleName];\n    if (val) {\n      var c = val.charAt(0);\n\n      // only numerical-based values have a negative sign or digit as the first value\n      if (c === '-' || c === '+' || c >= 0) {\n        val = parseMaxTime(val);\n      }\n\n      // by setting this to null in the event that the delay is not set or is set directly as 0\n      // then we can still allow for negative values to be used later on and not mistake this\n      // value for being greater than any other negative value.\n      if (val === 0) {\n        val = null;\n      }\n      styles[actualStyleName] = val;\n    }\n  });\n\n  return styles;\n}\n\nfunction parseMaxTime(str) {\n  var maxValue = 0;\n  var values = str.split(/\\s*,\\s*/);\n  forEach(values, function(value) {\n    // it's always safe to consider only second values and omit `ms` values since\n    // getComputedStyle will always handle the conversion for us\n    if (value.charAt(value.length - 1) === 's') {\n      value = value.substring(0, value.length - 1);\n    }\n    value = parseFloat(value) || 0;\n    maxValue = maxValue ? Math.max(value, maxValue) : value;\n  });\n  return maxValue;\n}\n\nfunction truthyTimingValue(val) {\n  return val === 0 || val != null;\n}\n\nfunction getCssTransitionDurationStyle(duration, applyOnlyDuration) {\n  var style = TRANSITION_PROP;\n  var value = duration + 's';\n  if (applyOnlyDuration) {\n    style += DURATION_KEY;\n  } else {\n    value += ' linear all';\n  }\n  return [style, value];\n}\n\n// we do not reassign an already present style value since\n// if we detect the style property value again we may be\n// detecting styles that were added via the `from` styles.\n// We make use of `isDefined` here since an empty string\n// or null value (which is what getPropertyValue will return\n// for a non-existing style) will still be marked as a valid\n// value for the style (a falsy value implies that the style\n// is to be removed at the end of the animation). If we had a simple\n// \"OR\" statement then it would not be enough to catch that.\nfunction registerRestorableStyles(backup, node, properties) {\n  forEach(properties, function(prop) {\n    backup[prop] = isDefined(backup[prop])\n        ? backup[prop]\n        : node.style.getPropertyValue(prop);\n  });\n}\n\nvar $AnimateCssProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n\n  this.$get = ['$window', '$$jqLite', '$$AnimateRunner', '$timeout', '$$animateCache',\n               '$$forceReflow', '$sniffer', '$$rAFScheduler', '$$animateQueue',\n       function($window,   $$jqLite,   $$AnimateRunner,   $timeout,   $$animateCache,\n                $$forceReflow,   $sniffer,   $$rAFScheduler, $$animateQueue) {\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function computeCachedCssStyles(node, className, cacheKey, allowNoDuration, properties) {\n      var timings = $$animateCache.get(cacheKey);\n\n      if (!timings) {\n        timings = computeCssStyles($window, node, properties);\n        if (timings.animationIterationCount === 'infinite') {\n          timings.animationIterationCount = 1;\n        }\n      }\n\n      // if a css animation has no duration we\n      // should mark that so that repeated addClass/removeClass calls are skipped\n      var hasDuration = allowNoDuration || (timings.transitionDuration > 0 || timings.animationDuration > 0);\n\n      // we keep putting this in multiple times even though the value and the cacheKey are the same\n      // because we're keeping an internal tally of how many duplicate animations are detected.\n      $$animateCache.put(cacheKey, timings, hasDuration);\n\n      return timings;\n    }\n\n    function computeCachedCssStaggerStyles(node, className, cacheKey, properties) {\n      var stagger;\n      var staggerCacheKey = 'stagger-' + cacheKey;\n\n      // if we have one or more existing matches of matching elements\n      // containing the same parent + CSS styles (which is how cacheKey works)\n      // then staggering is possible\n      if ($$animateCache.count(cacheKey) > 0) {\n        stagger = $$animateCache.get(staggerCacheKey);\n\n        if (!stagger) {\n          var staggerClassName = pendClasses(className, '-stagger');\n\n          $$jqLite.addClass(node, staggerClassName);\n\n          stagger = computeCssStyles($window, node, properties);\n\n          // force the conversion of a null value to zero incase not set\n          stagger.animationDuration = Math.max(stagger.animationDuration, 0);\n          stagger.transitionDuration = Math.max(stagger.transitionDuration, 0);\n\n          $$jqLite.removeClass(node, staggerClassName);\n\n          $$animateCache.put(staggerCacheKey, stagger, true);\n        }\n      }\n\n      return stagger || {};\n    }\n\n    var rafWaitQueue = [];\n    function waitUntilQuiet(callback) {\n      rafWaitQueue.push(callback);\n      $$rAFScheduler.waitUntilQuiet(function() {\n        $$animateCache.flush();\n\n        // DO NOT REMOVE THIS LINE OR REFACTOR OUT THE `pageWidth` variable.\n        // PLEASE EXAMINE THE `$$forceReflow` service to understand why.\n        var pageWidth = $$forceReflow();\n\n        // we use a for loop to ensure that if the queue is changed\n        // during this looping then it will consider new requests\n        for (var i = 0; i < rafWaitQueue.length; i++) {\n          rafWaitQueue[i](pageWidth);\n        }\n        rafWaitQueue.length = 0;\n      });\n    }\n\n    function computeTimings(node, className, cacheKey, allowNoDuration) {\n      var timings = computeCachedCssStyles(node, className, cacheKey, allowNoDuration, DETECT_CSS_PROPERTIES);\n      var aD = timings.animationDelay;\n      var tD = timings.transitionDelay;\n      timings.maxDelay = aD && tD\n          ? Math.max(aD, tD)\n          : (aD || tD);\n      timings.maxDuration = Math.max(\n          timings.animationDuration * timings.animationIterationCount,\n          timings.transitionDuration);\n\n      return timings;\n    }\n\n    return function init(element, initialOptions) {\n      // all of the animation functions should create\n      // a copy of the options data, however, if a\n      // parent service has already created a copy then\n      // we should stick to using that\n      var options = initialOptions || {};\n      if (!options.$$prepared) {\n        options = prepareAnimationOptions(copy(options));\n      }\n\n      var restoreStyles = {};\n      var node = getDomNode(element);\n      if (!node\n          || !node.parentNode\n          || !$$animateQueue.enabled()) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var temporaryStyles = [];\n      var classes = element.attr('class');\n      var styles = packageStyles(options);\n      var animationClosed;\n      var animationPaused;\n      var animationCompleted;\n      var runner;\n      var runnerHost;\n      var maxDelay;\n      var maxDelayTime;\n      var maxDuration;\n      var maxDurationTime;\n      var startTime;\n      var events = [];\n\n      if (options.duration === 0 || (!$sniffer.animations && !$sniffer.transitions)) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var method = options.event && isArray(options.event)\n            ? options.event.join(' ')\n            : options.event;\n\n      var isStructural = method && options.structural;\n      var structuralClassName = '';\n      var addRemoveClassName = '';\n\n      if (isStructural) {\n        structuralClassName = pendClasses(method, EVENT_CLASS_PREFIX, true);\n      } else if (method) {\n        structuralClassName = method;\n      }\n\n      if (options.addClass) {\n        addRemoveClassName += pendClasses(options.addClass, ADD_CLASS_SUFFIX);\n      }\n\n      if (options.removeClass) {\n        if (addRemoveClassName.length) {\n          addRemoveClassName += ' ';\n        }\n        addRemoveClassName += pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX);\n      }\n\n      // there may be a situation where a structural animation is combined together\n      // with CSS classes that need to resolve before the animation is computed.\n      // However this means that there is no explicit CSS code to block the animation\n      // from happening (by setting 0s none in the class name). If this is the case\n      // we need to apply the classes before the first rAF so we know to continue if\n      // there actually is a detected transition or keyframe animation\n      if (options.applyClassesEarly && addRemoveClassName.length) {\n        applyAnimationClasses(element, options);\n      }\n\n      var preparationClasses = [structuralClassName, addRemoveClassName].join(' ').trim();\n      var fullClassName = classes + ' ' + preparationClasses;\n      var hasToStyles = styles.to && Object.keys(styles.to).length > 0;\n      var containsKeyframeAnimation = (options.keyframeStyle || '').length > 0;\n\n      // there is no way we can trigger an animation if no styles and\n      // no classes are being applied which would then trigger a transition,\n      // unless there a is raw keyframe value that is applied to the element.\n      if (!containsKeyframeAnimation\n           && !hasToStyles\n           && !preparationClasses) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var stagger, cacheKey = $$animateCache.cacheKey(node, method, options.addClass, options.removeClass);\n      if ($$animateCache.containsCachedAnimationWithoutDuration(cacheKey)) {\n        preparationClasses = null;\n        return closeAndReturnNoopAnimator();\n      }\n\n      if (options.stagger > 0) {\n        var staggerVal = parseFloat(options.stagger);\n        stagger = {\n          transitionDelay: staggerVal,\n          animationDelay: staggerVal,\n          transitionDuration: 0,\n          animationDuration: 0\n        };\n      } else {\n        stagger = computeCachedCssStaggerStyles(node, preparationClasses, cacheKey, DETECT_STAGGER_CSS_PROPERTIES);\n      }\n\n      if (!options.$$skipPreparationClasses) {\n        $$jqLite.addClass(element, preparationClasses);\n      }\n\n      var applyOnlyDuration;\n\n      if (options.transitionStyle) {\n        var transitionStyle = [TRANSITION_PROP, options.transitionStyle];\n        applyInlineStyle(node, transitionStyle);\n        temporaryStyles.push(transitionStyle);\n      }\n\n      if (options.duration >= 0) {\n        applyOnlyDuration = node.style[TRANSITION_PROP].length > 0;\n        var durationStyle = getCssTransitionDurationStyle(options.duration, applyOnlyDuration);\n\n        // we set the duration so that it will be picked up by getComputedStyle later\n        applyInlineStyle(node, durationStyle);\n        temporaryStyles.push(durationStyle);\n      }\n\n      if (options.keyframeStyle) {\n        var keyframeStyle = [ANIMATION_PROP, options.keyframeStyle];\n        applyInlineStyle(node, keyframeStyle);\n        temporaryStyles.push(keyframeStyle);\n      }\n\n      var itemIndex = stagger\n          ? options.staggerIndex >= 0\n              ? options.staggerIndex\n              : $$animateCache.count(cacheKey)\n          : 0;\n\n      var isFirst = itemIndex === 0;\n\n      // this is a pre-emptive way of forcing the setup classes to be added and applied INSTANTLY\n      // without causing any combination of transitions to kick in. By adding a negative delay value\n      // it forces the setup class' transition to end immediately. We later then remove the negative\n      // transition delay to allow for the transition to naturally do it's thing. The beauty here is\n      // that if there is no transition defined then nothing will happen and this will also allow\n      // other transitions to be stacked on top of each other without any chopping them out.\n      if (isFirst && !options.skipBlocking) {\n        helpers.blockTransitions(node, SAFE_FAST_FORWARD_DURATION_VALUE);\n      }\n\n      var timings = computeTimings(node, fullClassName, cacheKey, !isStructural);\n      var relativeDelay = timings.maxDelay;\n      maxDelay = Math.max(relativeDelay, 0);\n      maxDuration = timings.maxDuration;\n\n      var flags = {};\n      flags.hasTransitions          = timings.transitionDuration > 0;\n      flags.hasAnimations           = timings.animationDuration > 0;\n      flags.hasTransitionAll        = flags.hasTransitions && timings.transitionProperty === 'all';\n      flags.applyTransitionDuration = hasToStyles && (\n                                        (flags.hasTransitions && !flags.hasTransitionAll)\n                                         || (flags.hasAnimations && !flags.hasTransitions));\n      flags.applyAnimationDuration  = options.duration && flags.hasAnimations;\n      flags.applyTransitionDelay    = truthyTimingValue(options.delay) && (flags.applyTransitionDuration || flags.hasTransitions);\n      flags.applyAnimationDelay     = truthyTimingValue(options.delay) && flags.hasAnimations;\n      flags.recalculateTimingStyles = addRemoveClassName.length > 0;\n\n      if (flags.applyTransitionDuration || flags.applyAnimationDuration) {\n        maxDuration = options.duration ? parseFloat(options.duration) : maxDuration;\n\n        if (flags.applyTransitionDuration) {\n          flags.hasTransitions = true;\n          timings.transitionDuration = maxDuration;\n          applyOnlyDuration = node.style[TRANSITION_PROP + PROPERTY_KEY].length > 0;\n          temporaryStyles.push(getCssTransitionDurationStyle(maxDuration, applyOnlyDuration));\n        }\n\n        if (flags.applyAnimationDuration) {\n          flags.hasAnimations = true;\n          timings.animationDuration = maxDuration;\n          temporaryStyles.push(getCssKeyframeDurationStyle(maxDuration));\n        }\n      }\n\n      if (maxDuration === 0 && !flags.recalculateTimingStyles) {\n        return closeAndReturnNoopAnimator();\n      }\n\n      var activeClasses = pendClasses(preparationClasses, ACTIVE_CLASS_SUFFIX);\n\n      if (options.delay != null) {\n        var delayStyle;\n        if (typeof options.delay !== 'boolean') {\n          delayStyle = parseFloat(options.delay);\n          // number in options.delay means we have to recalculate the delay for the closing timeout\n          maxDelay = Math.max(delayStyle, 0);\n        }\n\n        if (flags.applyTransitionDelay) {\n          temporaryStyles.push(getCssDelayStyle(delayStyle));\n        }\n\n        if (flags.applyAnimationDelay) {\n          temporaryStyles.push(getCssDelayStyle(delayStyle, true));\n        }\n      }\n\n      // we need to recalculate the delay value since we used a pre-emptive negative\n      // delay value and the delay value is required for the final event checking. This\n      // property will ensure that this will happen after the RAF phase has passed.\n      if (options.duration == null && timings.transitionDuration > 0) {\n        flags.recalculateTimingStyles = flags.recalculateTimingStyles || isFirst;\n      }\n\n      maxDelayTime = maxDelay * ONE_SECOND;\n      maxDurationTime = maxDuration * ONE_SECOND;\n      if (!options.skipBlocking) {\n        flags.blockTransition = timings.transitionDuration > 0;\n        flags.blockKeyframeAnimation = timings.animationDuration > 0 &&\n                                       stagger.animationDelay > 0 &&\n                                       stagger.animationDuration === 0;\n      }\n\n      if (options.from) {\n        if (options.cleanupStyles) {\n          registerRestorableStyles(restoreStyles, node, Object.keys(options.from));\n        }\n        applyAnimationFromStyles(element, options);\n      }\n\n      if (flags.blockTransition || flags.blockKeyframeAnimation) {\n        applyBlocking(maxDuration);\n      } else if (!options.skipBlocking) {\n        helpers.blockTransitions(node, false);\n      }\n\n      // TODO(matsko): for 1.5 change this code to have an animator object for better debugging\n      return {\n        $$willAnimate: true,\n        end: endFn,\n        start: function() {\n          if (animationClosed) return;\n\n          runnerHost = {\n            end: endFn,\n            cancel: cancelFn,\n            resume: null, //this will be set during the start() phase\n            pause: null\n          };\n\n          runner = new $$AnimateRunner(runnerHost);\n\n          waitUntilQuiet(start);\n\n          // we don't have access to pause/resume the animation\n          // since it hasn't run yet. AnimateRunner will therefore\n          // set noop functions for resume and pause and they will\n          // later be overridden once the animation is triggered\n          return runner;\n        }\n      };\n\n      function endFn() {\n        close();\n      }\n\n      function cancelFn() {\n        close(true);\n      }\n\n      function close(rejected) {\n        // if the promise has been called already then we shouldn't close\n        // the animation again\n        if (animationClosed || (animationCompleted && animationPaused)) return;\n        animationClosed = true;\n        animationPaused = false;\n\n        if (preparationClasses && !options.$$skipPreparationClasses) {\n          $$jqLite.removeClass(element, preparationClasses);\n        }\n\n        if (activeClasses) {\n          $$jqLite.removeClass(element, activeClasses);\n        }\n\n        blockKeyframeAnimations(node, false);\n        helpers.blockTransitions(node, false);\n\n        forEach(temporaryStyles, function(entry) {\n          // There is only one way to remove inline style properties entirely from elements.\n          // By using `removeProperty` this works, but we need to convert camel-cased CSS\n          // styles down to hyphenated values.\n          node.style[entry[0]] = '';\n        });\n\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n\n        if (Object.keys(restoreStyles).length) {\n          forEach(restoreStyles, function(value, prop) {\n            if (value) {\n              node.style.setProperty(prop, value);\n            } else {\n              node.style.removeProperty(prop);\n            }\n          });\n        }\n\n        // the reason why we have this option is to allow a synchronous closing callback\n        // that is fired as SOON as the animation ends (when the CSS is removed) or if\n        // the animation never takes off at all. A good example is a leave animation since\n        // the element must be removed just after the animation is over or else the element\n        // will appear on screen for one animation frame causing an overbearing flicker.\n        if (options.onDone) {\n          options.onDone();\n        }\n\n        if (events && events.length) {\n          // Remove the transitionend / animationend listener(s)\n          element.off(events.join(' '), onAnimationProgress);\n        }\n\n        //Cancel the fallback closing timeout and remove the timer data\n        var animationTimerData = element.data(ANIMATE_TIMER_KEY);\n        if (animationTimerData) {\n          $timeout.cancel(animationTimerData[0].timer);\n          element.removeData(ANIMATE_TIMER_KEY);\n        }\n\n        // if the preparation function fails then the promise is not setup\n        if (runner) {\n          runner.complete(!rejected);\n        }\n      }\n\n      function applyBlocking(duration) {\n        if (flags.blockTransition) {\n          helpers.blockTransitions(node, duration);\n        }\n\n        if (flags.blockKeyframeAnimation) {\n          blockKeyframeAnimations(node, !!duration);\n        }\n      }\n\n      function closeAndReturnNoopAnimator() {\n        runner = new $$AnimateRunner({\n          end: endFn,\n          cancel: cancelFn\n        });\n\n        // should flush the cache animation\n        waitUntilQuiet(noop);\n        close();\n\n        return {\n          $$willAnimate: false,\n          start: function() {\n            return runner;\n          },\n          end: endFn\n        };\n      }\n\n      function onAnimationProgress(event) {\n        event.stopPropagation();\n        var ev = event.originalEvent || event;\n\n        if (ev.target !== node) {\n          // Since TransitionEvent / AnimationEvent bubble up,\n          // we have to ignore events by finished child animations\n          return;\n        }\n\n        // we now always use `Date.now()` due to the recent changes with\n        // event.timeStamp in Firefox, Webkit and Chrome (see #13494 for more info)\n        var timeStamp = ev.$manualTimeStamp || Date.now();\n\n        /* Firefox (or possibly just Gecko) likes to not round values up\n         * when a ms measurement is used for the animation */\n        var elapsedTime = parseFloat(ev.elapsedTime.toFixed(ELAPSED_TIME_MAX_DECIMAL_PLACES));\n\n        /* $manualTimeStamp is a mocked timeStamp value which is set\n         * within browserTrigger(). This is only here so that tests can\n         * mock animations properly. Real events fallback to event.timeStamp,\n         * or, if they don't, then a timeStamp is automatically created for them.\n         * We're checking to see if the timeStamp surpasses the expected delay,\n         * but we're using elapsedTime instead of the timeStamp on the 2nd\n         * pre-condition since animationPauseds sometimes close off early */\n        if (Math.max(timeStamp - startTime, 0) >= maxDelayTime && elapsedTime >= maxDuration) {\n          // we set this flag to ensure that if the transition is paused then, when resumed,\n          // the animation will automatically close itself since transitions cannot be paused.\n          animationCompleted = true;\n          close();\n        }\n      }\n\n      function start() {\n        if (animationClosed) return;\n        if (!node.parentNode) {\n          close();\n          return;\n        }\n\n        // even though we only pause keyframe animations here the pause flag\n        // will still happen when transitions are used. Only the transition will\n        // not be paused since that is not possible. If the animation ends when\n        // paused then it will not complete until unpaused or cancelled.\n        var playPause = function(playAnimation) {\n          if (!animationCompleted) {\n            animationPaused = !playAnimation;\n            if (timings.animationDuration) {\n              var value = blockKeyframeAnimations(node, animationPaused);\n              if (animationPaused) {\n                temporaryStyles.push(value);\n              } else {\n                removeFromArray(temporaryStyles, value);\n              }\n            }\n          } else if (animationPaused && playAnimation) {\n            animationPaused = false;\n            close();\n          }\n        };\n\n        // checking the stagger duration prevents an accidentally cascade of the CSS delay style\n        // being inherited from the parent. If the transition duration is zero then we can safely\n        // rely that the delay value is an intentional stagger delay style.\n        var maxStagger = itemIndex > 0\n                         && ((timings.transitionDuration && stagger.transitionDuration === 0) ||\n                            (timings.animationDuration && stagger.animationDuration === 0))\n                         && Math.max(stagger.animationDelay, stagger.transitionDelay);\n        if (maxStagger) {\n          $timeout(triggerAnimationStart,\n                   Math.floor(maxStagger * itemIndex * ONE_SECOND),\n                   false);\n        } else {\n          triggerAnimationStart();\n        }\n\n        // this will decorate the existing promise runner with pause/resume methods\n        runnerHost.resume = function() {\n          playPause(true);\n        };\n\n        runnerHost.pause = function() {\n          playPause(false);\n        };\n\n        function triggerAnimationStart() {\n          // just incase a stagger animation kicks in when the animation\n          // itself was cancelled entirely\n          if (animationClosed) return;\n\n          applyBlocking(false);\n\n          forEach(temporaryStyles, function(entry) {\n            var key = entry[0];\n            var value = entry[1];\n            node.style[key] = value;\n          });\n\n          applyAnimationClasses(element, options);\n          $$jqLite.addClass(element, activeClasses);\n\n          if (flags.recalculateTimingStyles) {\n            fullClassName = node.getAttribute('class') + ' ' + preparationClasses;\n            cacheKey = $$animateCache.cacheKey(node, method, options.addClass, options.removeClass);\n\n            timings = computeTimings(node, fullClassName, cacheKey, false);\n            relativeDelay = timings.maxDelay;\n            maxDelay = Math.max(relativeDelay, 0);\n            maxDuration = timings.maxDuration;\n\n            if (maxDuration === 0) {\n              close();\n              return;\n            }\n\n            flags.hasTransitions = timings.transitionDuration > 0;\n            flags.hasAnimations = timings.animationDuration > 0;\n          }\n\n          if (flags.applyAnimationDelay) {\n            relativeDelay = typeof options.delay !== 'boolean' && truthyTimingValue(options.delay)\n                  ? parseFloat(options.delay)\n                  : relativeDelay;\n\n            maxDelay = Math.max(relativeDelay, 0);\n            timings.animationDelay = relativeDelay;\n            delayStyle = getCssDelayStyle(relativeDelay, true);\n            temporaryStyles.push(delayStyle);\n            node.style[delayStyle[0]] = delayStyle[1];\n          }\n\n          maxDelayTime = maxDelay * ONE_SECOND;\n          maxDurationTime = maxDuration * ONE_SECOND;\n\n          if (options.easing) {\n            var easeProp, easeVal = options.easing;\n            if (flags.hasTransitions) {\n              easeProp = TRANSITION_PROP + TIMING_KEY;\n              temporaryStyles.push([easeProp, easeVal]);\n              node.style[easeProp] = easeVal;\n            }\n            if (flags.hasAnimations) {\n              easeProp = ANIMATION_PROP + TIMING_KEY;\n              temporaryStyles.push([easeProp, easeVal]);\n              node.style[easeProp] = easeVal;\n            }\n          }\n\n          if (timings.transitionDuration) {\n            events.push(TRANSITIONEND_EVENT);\n          }\n\n          if (timings.animationDuration) {\n            events.push(ANIMATIONEND_EVENT);\n          }\n\n          startTime = Date.now();\n          var timerTime = maxDelayTime + CLOSING_TIME_BUFFER * maxDurationTime;\n          var endTime = startTime + timerTime;\n\n          var animationsData = element.data(ANIMATE_TIMER_KEY) || [];\n          var setupFallbackTimer = true;\n          if (animationsData.length) {\n            var currentTimerData = animationsData[0];\n            setupFallbackTimer = endTime > currentTimerData.expectedEndTime;\n            if (setupFallbackTimer) {\n              $timeout.cancel(currentTimerData.timer);\n            } else {\n              animationsData.push(close);\n            }\n          }\n\n          if (setupFallbackTimer) {\n            var timer = $timeout(onAnimationExpired, timerTime, false);\n            animationsData[0] = {\n              timer: timer,\n              expectedEndTime: endTime\n            };\n            animationsData.push(close);\n            element.data(ANIMATE_TIMER_KEY, animationsData);\n          }\n\n          if (events.length) {\n            element.on(events.join(' '), onAnimationProgress);\n          }\n\n          if (options.to) {\n            if (options.cleanupStyles) {\n              registerRestorableStyles(restoreStyles, node, Object.keys(options.to));\n            }\n            applyAnimationToStyles(element, options);\n          }\n        }\n\n        function onAnimationExpired() {\n          var animationsData = element.data(ANIMATE_TIMER_KEY);\n\n          // this will be false in the event that the element was\n          // removed from the DOM (via a leave animation or something\n          // similar)\n          if (animationsData) {\n            for (var i = 1; i < animationsData.length; i++) {\n              animationsData[i]();\n            }\n            element.removeData(ANIMATE_TIMER_KEY);\n          }\n        }\n      }\n    };\n  }];\n}];\n\nvar $$AnimateCssDriverProvider = ['$$animationProvider', /** @this */ function($$animationProvider) {\n  $$animationProvider.drivers.push('$$animateCssDriver');\n\n  var NG_ANIMATE_SHIM_CLASS_NAME = 'ng-animate-shim';\n  var NG_ANIMATE_ANCHOR_CLASS_NAME = 'ng-anchor';\n\n  var NG_OUT_ANCHOR_CLASS_NAME = 'ng-anchor-out';\n  var NG_IN_ANCHOR_CLASS_NAME = 'ng-anchor-in';\n\n  function isDocumentFragment(node) {\n    return node.parentNode && node.parentNode.nodeType === 11;\n  }\n\n  this.$get = ['$animateCss', '$rootScope', '$$AnimateRunner', '$rootElement', '$sniffer', '$$jqLite', '$document',\n       function($animateCss,   $rootScope,   $$AnimateRunner,   $rootElement,   $sniffer,   $$jqLite,   $document) {\n\n    // only browsers that support these properties can render animations\n    if (!$sniffer.animations && !$sniffer.transitions) return noop;\n\n    var bodyNode = $document[0].body;\n    var rootNode = getDomNode($rootElement);\n\n    var rootBodyElement = jqLite(\n      // this is to avoid using something that exists outside of the body\n      // we also special case the doc fragment case because our unit test code\n      // appends the $rootElement to the body after the app has been bootstrapped\n      isDocumentFragment(rootNode) || bodyNode.contains(rootNode) ? rootNode : bodyNode\n    );\n\n    return function initDriverFn(animationDetails) {\n      return animationDetails.from && animationDetails.to\n          ? prepareFromToAnchorAnimation(animationDetails.from,\n                                         animationDetails.to,\n                                         animationDetails.classes,\n                                         animationDetails.anchors)\n          : prepareRegularAnimation(animationDetails);\n    };\n\n    function filterCssClasses(classes) {\n      //remove all the `ng-` stuff\n      return classes.replace(/\\bng-\\S+\\b/g, '');\n    }\n\n    function getUniqueValues(a, b) {\n      if (isString(a)) a = a.split(' ');\n      if (isString(b)) b = b.split(' ');\n      return a.filter(function(val) {\n        return b.indexOf(val) === -1;\n      }).join(' ');\n    }\n\n    function prepareAnchoredAnimation(classes, outAnchor, inAnchor) {\n      var clone = jqLite(getDomNode(outAnchor).cloneNode(true));\n      var startingClasses = filterCssClasses(getClassVal(clone));\n\n      outAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);\n      inAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);\n\n      clone.addClass(NG_ANIMATE_ANCHOR_CLASS_NAME);\n\n      rootBodyElement.append(clone);\n\n      var animatorIn, animatorOut = prepareOutAnimation();\n\n      // the user may not end up using the `out` animation and\n      // only making use of the `in` animation or vice-versa.\n      // In either case we should allow this and not assume the\n      // animation is over unless both animations are not used.\n      if (!animatorOut) {\n        animatorIn = prepareInAnimation();\n        if (!animatorIn) {\n          return end();\n        }\n      }\n\n      var startingAnimator = animatorOut || animatorIn;\n\n      return {\n        start: function() {\n          var runner;\n\n          var currentAnimation = startingAnimator.start();\n          currentAnimation.done(function() {\n            currentAnimation = null;\n            if (!animatorIn) {\n              animatorIn = prepareInAnimation();\n              if (animatorIn) {\n                currentAnimation = animatorIn.start();\n                currentAnimation.done(function() {\n                  currentAnimation = null;\n                  end();\n                  runner.complete();\n                });\n                return currentAnimation;\n              }\n            }\n            // in the event that there is no `in` animation\n            end();\n            runner.complete();\n          });\n\n          runner = new $$AnimateRunner({\n            end: endFn,\n            cancel: endFn\n          });\n\n          return runner;\n\n          function endFn() {\n            if (currentAnimation) {\n              currentAnimation.end();\n            }\n          }\n        }\n      };\n\n      function calculateAnchorStyles(anchor) {\n        var styles = {};\n\n        var coords = getDomNode(anchor).getBoundingClientRect();\n\n        // we iterate directly since safari messes up and doesn't return\n        // all the keys for the coords object when iterated\n        forEach(['width','height','top','left'], function(key) {\n          var value = coords[key];\n          switch (key) {\n            case 'top':\n              value += bodyNode.scrollTop;\n              break;\n            case 'left':\n              value += bodyNode.scrollLeft;\n              break;\n          }\n          styles[key] = Math.floor(value) + 'px';\n        });\n        return styles;\n      }\n\n      function prepareOutAnimation() {\n        var animator = $animateCss(clone, {\n          addClass: NG_OUT_ANCHOR_CLASS_NAME,\n          delay: true,\n          from: calculateAnchorStyles(outAnchor)\n        });\n\n        // read the comment within `prepareRegularAnimation` to understand\n        // why this check is necessary\n        return animator.$$willAnimate ? animator : null;\n      }\n\n      function getClassVal(element) {\n        return element.attr('class') || '';\n      }\n\n      function prepareInAnimation() {\n        var endingClasses = filterCssClasses(getClassVal(inAnchor));\n        var toAdd = getUniqueValues(endingClasses, startingClasses);\n        var toRemove = getUniqueValues(startingClasses, endingClasses);\n\n        var animator = $animateCss(clone, {\n          to: calculateAnchorStyles(inAnchor),\n          addClass: NG_IN_ANCHOR_CLASS_NAME + ' ' + toAdd,\n          removeClass: NG_OUT_ANCHOR_CLASS_NAME + ' ' + toRemove,\n          delay: true\n        });\n\n        // read the comment within `prepareRegularAnimation` to understand\n        // why this check is necessary\n        return animator.$$willAnimate ? animator : null;\n      }\n\n      function end() {\n        clone.remove();\n        outAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);\n        inAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);\n      }\n    }\n\n    function prepareFromToAnchorAnimation(from, to, classes, anchors) {\n      var fromAnimation = prepareRegularAnimation(from, noop);\n      var toAnimation = prepareRegularAnimation(to, noop);\n\n      var anchorAnimations = [];\n      forEach(anchors, function(anchor) {\n        var outElement = anchor['out'];\n        var inElement = anchor['in'];\n        var animator = prepareAnchoredAnimation(classes, outElement, inElement);\n        if (animator) {\n          anchorAnimations.push(animator);\n        }\n      });\n\n      // no point in doing anything when there are no elements to animate\n      if (!fromAnimation && !toAnimation && anchorAnimations.length === 0) return;\n\n      return {\n        start: function() {\n          var animationRunners = [];\n\n          if (fromAnimation) {\n            animationRunners.push(fromAnimation.start());\n          }\n\n          if (toAnimation) {\n            animationRunners.push(toAnimation.start());\n          }\n\n          forEach(anchorAnimations, function(animation) {\n            animationRunners.push(animation.start());\n          });\n\n          var runner = new $$AnimateRunner({\n            end: endFn,\n            cancel: endFn // CSS-driven animations cannot be cancelled, only ended\n          });\n\n          $$AnimateRunner.all(animationRunners, function(status) {\n            runner.complete(status);\n          });\n\n          return runner;\n\n          function endFn() {\n            forEach(animationRunners, function(runner) {\n              runner.end();\n            });\n          }\n        }\n      };\n    }\n\n    function prepareRegularAnimation(animationDetails) {\n      var element = animationDetails.element;\n      var options = animationDetails.options || {};\n\n      if (animationDetails.structural) {\n        options.event = animationDetails.event;\n        options.structural = true;\n        options.applyClassesEarly = true;\n\n        // we special case the leave animation since we want to ensure that\n        // the element is removed as soon as the animation is over. Otherwise\n        // a flicker might appear or the element may not be removed at all\n        if (animationDetails.event === 'leave') {\n          options.onDone = options.domOperation;\n        }\n      }\n\n      // We assign the preparationClasses as the actual animation event since\n      // the internals of $animateCss will just suffix the event token values\n      // with `-active` to trigger the animation.\n      if (options.preparationClasses) {\n        options.event = concatWithSpace(options.event, options.preparationClasses);\n      }\n\n      var animator = $animateCss(element, options);\n\n      // the driver lookup code inside of $$animation attempts to spawn a\n      // driver one by one until a driver returns a.$$willAnimate animator object.\n      // $animateCss will always return an object, however, it will pass in\n      // a flag as a hint as to whether an animation was detected or not\n      return animator.$$willAnimate ? animator : null;\n    }\n  }];\n}];\n\n// TODO(matsko): use caching here to speed things up for detection\n// TODO(matsko): add documentation\n//  by the time...\n\nvar $$AnimateJsProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  this.$get = ['$injector', '$$AnimateRunner', '$$jqLite',\n       function($injector,   $$AnimateRunner,   $$jqLite) {\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n         // $animateJs(element, 'enter');\n    return function(element, event, classes, options) {\n      var animationClosed = false;\n\n      // the `classes` argument is optional and if it is not used\n      // then the classes will be resolved from the element's className\n      // property as well as options.addClass/options.removeClass.\n      if (arguments.length === 3 && isObject(classes)) {\n        options = classes;\n        classes = null;\n      }\n\n      options = prepareAnimationOptions(options);\n      if (!classes) {\n        classes = element.attr('class') || '';\n        if (options.addClass) {\n          classes += ' ' + options.addClass;\n        }\n        if (options.removeClass) {\n          classes += ' ' + options.removeClass;\n        }\n      }\n\n      var classesToAdd = options.addClass;\n      var classesToRemove = options.removeClass;\n\n      // the lookupAnimations function returns a series of animation objects that are\n      // matched up with one or more of the CSS classes. These animation objects are\n      // defined via the module.animation factory function. If nothing is detected then\n      // we don't return anything which then makes $animation query the next driver.\n      var animations = lookupAnimations(classes);\n      var before, after;\n      if (animations.length) {\n        var afterFn, beforeFn;\n        if (event === 'leave') {\n          beforeFn = 'leave';\n          afterFn = 'afterLeave'; // TODO(matsko): get rid of this\n        } else {\n          beforeFn = 'before' + event.charAt(0).toUpperCase() + event.substr(1);\n          afterFn = event;\n        }\n\n        if (event !== 'enter' && event !== 'move') {\n          before = packageAnimations(element, event, options, animations, beforeFn);\n        }\n        after  = packageAnimations(element, event, options, animations, afterFn);\n      }\n\n      // no matching animations\n      if (!before && !after) return;\n\n      function applyOptions() {\n        options.domOperation();\n        applyAnimationClasses(element, options);\n      }\n\n      function close() {\n        animationClosed = true;\n        applyOptions();\n        applyAnimationStyles(element, options);\n      }\n\n      var runner;\n\n      return {\n        $$willAnimate: true,\n        end: function() {\n          if (runner) {\n            runner.end();\n          } else {\n            close();\n            runner = new $$AnimateRunner();\n            runner.complete(true);\n          }\n          return runner;\n        },\n        start: function() {\n          if (runner) {\n            return runner;\n          }\n\n          runner = new $$AnimateRunner();\n          var closeActiveAnimations;\n          var chain = [];\n\n          if (before) {\n            chain.push(function(fn) {\n              closeActiveAnimations = before(fn);\n            });\n          }\n\n          if (chain.length) {\n            chain.push(function(fn) {\n              applyOptions();\n              fn(true);\n            });\n          } else {\n            applyOptions();\n          }\n\n          if (after) {\n            chain.push(function(fn) {\n              closeActiveAnimations = after(fn);\n            });\n          }\n\n          runner.setHost({\n            end: function() {\n              endAnimations();\n            },\n            cancel: function() {\n              endAnimations(true);\n            }\n          });\n\n          $$AnimateRunner.chain(chain, onComplete);\n          return runner;\n\n          function onComplete(success) {\n            close(success);\n            runner.complete(success);\n          }\n\n          function endAnimations(cancelled) {\n            if (!animationClosed) {\n              (closeActiveAnimations || noop)(cancelled);\n              onComplete(cancelled);\n            }\n          }\n        }\n      };\n\n      function executeAnimationFn(fn, element, event, options, onDone) {\n        var args;\n        switch (event) {\n          case 'animate':\n            args = [element, options.from, options.to, onDone];\n            break;\n\n          case 'setClass':\n            args = [element, classesToAdd, classesToRemove, onDone];\n            break;\n\n          case 'addClass':\n            args = [element, classesToAdd, onDone];\n            break;\n\n          case 'removeClass':\n            args = [element, classesToRemove, onDone];\n            break;\n\n          default:\n            args = [element, onDone];\n            break;\n        }\n\n        args.push(options);\n\n        var value = fn.apply(fn, args);\n        if (value) {\n          if (isFunction(value.start)) {\n            value = value.start();\n          }\n\n          if (value instanceof $$AnimateRunner) {\n            value.done(onDone);\n          } else if (isFunction(value)) {\n            // optional onEnd / onCancel callback\n            return value;\n          }\n        }\n\n        return noop;\n      }\n\n      function groupEventedAnimations(element, event, options, animations, fnName) {\n        var operations = [];\n        forEach(animations, function(ani) {\n          var animation = ani[fnName];\n          if (!animation) return;\n\n          // note that all of these animations will run in parallel\n          operations.push(function() {\n            var runner;\n            var endProgressCb;\n\n            var resolved = false;\n            var onAnimationComplete = function(rejected) {\n              if (!resolved) {\n                resolved = true;\n                (endProgressCb || noop)(rejected);\n                runner.complete(!rejected);\n              }\n            };\n\n            runner = new $$AnimateRunner({\n              end: function() {\n                onAnimationComplete();\n              },\n              cancel: function() {\n                onAnimationComplete(true);\n              }\n            });\n\n            endProgressCb = executeAnimationFn(animation, element, event, options, function(result) {\n              var cancelled = result === false;\n              onAnimationComplete(cancelled);\n            });\n\n            return runner;\n          });\n        });\n\n        return operations;\n      }\n\n      function packageAnimations(element, event, options, animations, fnName) {\n        var operations = groupEventedAnimations(element, event, options, animations, fnName);\n        if (operations.length === 0) {\n          var a, b;\n          if (fnName === 'beforeSetClass') {\n            a = groupEventedAnimations(element, 'removeClass', options, animations, 'beforeRemoveClass');\n            b = groupEventedAnimations(element, 'addClass', options, animations, 'beforeAddClass');\n          } else if (fnName === 'setClass') {\n            a = groupEventedAnimations(element, 'removeClass', options, animations, 'removeClass');\n            b = groupEventedAnimations(element, 'addClass', options, animations, 'addClass');\n          }\n\n          if (a) {\n            operations = operations.concat(a);\n          }\n          if (b) {\n            operations = operations.concat(b);\n          }\n        }\n\n        if (operations.length === 0) return;\n\n        // TODO(matsko): add documentation\n        return function startAnimation(callback) {\n          var runners = [];\n          if (operations.length) {\n            forEach(operations, function(animateFn) {\n              runners.push(animateFn());\n            });\n          }\n\n          if (runners.length) {\n            $$AnimateRunner.all(runners, callback);\n          }  else {\n            callback();\n          }\n\n          return function endFn(reject) {\n            forEach(runners, function(runner) {\n              if (reject) {\n                runner.cancel();\n              } else {\n                runner.end();\n              }\n            });\n          };\n        };\n      }\n    };\n\n    function lookupAnimations(classes) {\n      classes = isArray(classes) ? classes : classes.split(' ');\n      var matches = [], flagMap = {};\n      for (var i = 0; i < classes.length; i++) {\n        var klass = classes[i],\n            animationFactory = $animateProvider.$$registeredAnimations[klass];\n        if (animationFactory && !flagMap[klass]) {\n          matches.push($injector.get(animationFactory));\n          flagMap[klass] = true;\n        }\n      }\n      return matches;\n    }\n  }];\n}];\n\nvar $$AnimateJsDriverProvider = ['$$animationProvider', /** @this */ function($$animationProvider) {\n  $$animationProvider.drivers.push('$$animateJsDriver');\n  this.$get = ['$$animateJs', '$$AnimateRunner', function($$animateJs, $$AnimateRunner) {\n    return function initDriverFn(animationDetails) {\n      if (animationDetails.from && animationDetails.to) {\n        var fromAnimation = prepareAnimation(animationDetails.from);\n        var toAnimation = prepareAnimation(animationDetails.to);\n        if (!fromAnimation && !toAnimation) return;\n\n        return {\n          start: function() {\n            var animationRunners = [];\n\n            if (fromAnimation) {\n              animationRunners.push(fromAnimation.start());\n            }\n\n            if (toAnimation) {\n              animationRunners.push(toAnimation.start());\n            }\n\n            $$AnimateRunner.all(animationRunners, done);\n\n            var runner = new $$AnimateRunner({\n              end: endFnFactory(),\n              cancel: endFnFactory()\n            });\n\n            return runner;\n\n            function endFnFactory() {\n              return function() {\n                forEach(animationRunners, function(runner) {\n                  // at this point we cannot cancel animations for groups just yet. 1.5+\n                  runner.end();\n                });\n              };\n            }\n\n            function done(status) {\n              runner.complete(status);\n            }\n          }\n        };\n      } else {\n        return prepareAnimation(animationDetails);\n      }\n    };\n\n    function prepareAnimation(animationDetails) {\n      // TODO(matsko): make sure to check for grouped animations and delegate down to normal animations\n      var element = animationDetails.element;\n      var event = animationDetails.event;\n      var options = animationDetails.options;\n      var classes = animationDetails.classes;\n      return $$animateJs(element, event, classes, options);\n    }\n  }];\n}];\n\nvar NG_ANIMATE_ATTR_NAME = 'data-ng-animate';\nvar NG_ANIMATE_PIN_DATA = '$ngAnimatePin';\nvar $$AnimateQueueProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  var PRE_DIGEST_STATE = 1;\n  var RUNNING_STATE = 2;\n  var ONE_SPACE = ' ';\n\n  var rules = this.rules = {\n    skip: [],\n    cancel: [],\n    join: []\n  };\n\n  function getEventData(options) {\n    return {\n      addClass: options.addClass,\n      removeClass: options.removeClass,\n      from: options.from,\n      to: options.to\n    };\n  }\n\n  function makeTruthyCssClassMap(classString) {\n    if (!classString) {\n      return null;\n    }\n\n    var keys = classString.split(ONE_SPACE);\n    var map = Object.create(null);\n\n    forEach(keys, function(key) {\n      map[key] = true;\n    });\n    return map;\n  }\n\n  function hasMatchingClasses(newClassString, currentClassString) {\n    if (newClassString && currentClassString) {\n      var currentClassMap = makeTruthyCssClassMap(currentClassString);\n      return newClassString.split(ONE_SPACE).some(function(className) {\n        return currentClassMap[className];\n      });\n    }\n  }\n\n  function isAllowed(ruleType, currentAnimation, previousAnimation) {\n    return rules[ruleType].some(function(fn) {\n      return fn(currentAnimation, previousAnimation);\n    });\n  }\n\n  function hasAnimationClasses(animation, and) {\n    var a = (animation.addClass || '').length > 0;\n    var b = (animation.removeClass || '').length > 0;\n    return and ? a && b : a || b;\n  }\n\n  rules.join.push(function(newAnimation, currentAnimation) {\n    // if the new animation is class-based then we can just tack that on\n    return !newAnimation.structural && hasAnimationClasses(newAnimation);\n  });\n\n  rules.skip.push(function(newAnimation, currentAnimation) {\n    // there is no need to animate anything if no classes are being added and\n    // there is no structural animation that will be triggered\n    return !newAnimation.structural && !hasAnimationClasses(newAnimation);\n  });\n\n  rules.skip.push(function(newAnimation, currentAnimation) {\n    // why should we trigger a new structural animation if the element will\n    // be removed from the DOM anyway?\n    return currentAnimation.event === 'leave' && newAnimation.structural;\n  });\n\n  rules.skip.push(function(newAnimation, currentAnimation) {\n    // if there is an ongoing current animation then don't even bother running the class-based animation\n    return currentAnimation.structural && currentAnimation.state === RUNNING_STATE && !newAnimation.structural;\n  });\n\n  rules.cancel.push(function(newAnimation, currentAnimation) {\n    // there can never be two structural animations running at the same time\n    return currentAnimation.structural && newAnimation.structural;\n  });\n\n  rules.cancel.push(function(newAnimation, currentAnimation) {\n    // if the previous animation is already running, but the new animation will\n    // be triggered, but the new animation is structural\n    return currentAnimation.state === RUNNING_STATE && newAnimation.structural;\n  });\n\n  rules.cancel.push(function(newAnimation, currentAnimation) {\n    // cancel the animation if classes added / removed in both animation cancel each other out,\n    // but only if the current animation isn't structural\n\n    if (currentAnimation.structural) return false;\n\n    var nA = newAnimation.addClass;\n    var nR = newAnimation.removeClass;\n    var cA = currentAnimation.addClass;\n    var cR = currentAnimation.removeClass;\n\n    // early detection to save the global CPU shortage :)\n    if ((isUndefined(nA) && isUndefined(nR)) || (isUndefined(cA) && isUndefined(cR))) {\n      return false;\n    }\n\n    return hasMatchingClasses(nA, cR) || hasMatchingClasses(nR, cA);\n  });\n\n  this.$get = ['$$rAF', '$rootScope', '$rootElement', '$document', '$$Map',\n               '$$animation', '$$AnimateRunner', '$templateRequest', '$$jqLite', '$$forceReflow',\n               '$$isDocumentHidden',\n       function($$rAF,   $rootScope,   $rootElement,   $document,   $$Map,\n                $$animation,   $$AnimateRunner,   $templateRequest,   $$jqLite,   $$forceReflow,\n                $$isDocumentHidden) {\n\n    var activeAnimationsLookup = new $$Map();\n    var disabledElementsLookup = new $$Map();\n    var animationsEnabled = null;\n\n    function removeFromDisabledElementsLookup(evt) {\n      disabledElementsLookup.delete(evt.target);\n    }\n\n    function postDigestTaskFactory() {\n      var postDigestCalled = false;\n      return function(fn) {\n        // we only issue a call to postDigest before\n        // it has first passed. This prevents any callbacks\n        // from not firing once the animation has completed\n        // since it will be out of the digest cycle.\n        if (postDigestCalled) {\n          fn();\n        } else {\n          $rootScope.$$postDigest(function() {\n            postDigestCalled = true;\n            fn();\n          });\n        }\n      };\n    }\n\n    // Wait until all directive and route-related templates are downloaded and\n    // compiled. The $templateRequest.totalPendingRequests variable keeps track of\n    // all of the remote templates being currently downloaded. If there are no\n    // templates currently downloading then the watcher will still fire anyway.\n    var deregisterWatch = $rootScope.$watch(\n      function() { return $templateRequest.totalPendingRequests === 0; },\n      function(isEmpty) {\n        if (!isEmpty) return;\n        deregisterWatch();\n\n        // Now that all templates have been downloaded, $animate will wait until\n        // the post digest queue is empty before enabling animations. By having two\n        // calls to $postDigest calls we can ensure that the flag is enabled at the\n        // very end of the post digest queue. Since all of the animations in $animate\n        // use $postDigest, it's important that the code below executes at the end.\n        // This basically means that the page is fully downloaded and compiled before\n        // any animations are triggered.\n        $rootScope.$$postDigest(function() {\n          $rootScope.$$postDigest(function() {\n            // we check for null directly in the event that the application already called\n            // .enabled() with whatever arguments that it provided it with\n            if (animationsEnabled === null) {\n              animationsEnabled = true;\n            }\n          });\n        });\n      }\n    );\n\n    var callbackRegistry = Object.create(null);\n\n    // remember that the `customFilter`/`classNameFilter` are set during the\n    // provider/config stage therefore we can optimize here and setup helper functions\n    var customFilter = $animateProvider.customFilter();\n    var classNameFilter = $animateProvider.classNameFilter();\n    var returnTrue = function() { return true; };\n\n    var isAnimatableByFilter = customFilter || returnTrue;\n    var isAnimatableClassName = !classNameFilter ? returnTrue : function(node, options) {\n      var className = [node.getAttribute('class'), options.addClass, options.removeClass].join(' ');\n      return classNameFilter.test(className);\n    };\n\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function normalizeAnimationDetails(element, animation) {\n      return mergeAnimationDetails(element, animation, {});\n    }\n\n    // IE9-11 has no method \"contains\" in SVG element and in Node.prototype. Bug #10259.\n    var contains = window.Node.prototype.contains || /** @this */ function(arg) {\n      // eslint-disable-next-line no-bitwise\n      return this === arg || !!(this.compareDocumentPosition(arg) & 16);\n    };\n\n    function findCallbacks(targetParentNode, targetNode, event) {\n      var matches = [];\n      var entries = callbackRegistry[event];\n      if (entries) {\n        forEach(entries, function(entry) {\n          if (contains.call(entry.node, targetNode)) {\n            matches.push(entry.callback);\n          } else if (event === 'leave' && contains.call(entry.node, targetParentNode)) {\n            matches.push(entry.callback);\n          }\n        });\n      }\n\n      return matches;\n    }\n\n    function filterFromRegistry(list, matchContainer, matchCallback) {\n      var containerNode = extractElementNode(matchContainer);\n      return list.filter(function(entry) {\n        var isMatch = entry.node === containerNode &&\n                        (!matchCallback || entry.callback === matchCallback);\n        return !isMatch;\n      });\n    }\n\n    function cleanupEventListeners(phase, node) {\n      if (phase === 'close' && !node.parentNode) {\n        // If the element is not attached to a parentNode, it has been removed by\n        // the domOperation, and we can safely remove the event callbacks\n        $animate.off(node);\n      }\n    }\n\n    var $animate = {\n      on: function(event, container, callback) {\n        var node = extractElementNode(container);\n        callbackRegistry[event] = callbackRegistry[event] || [];\n        callbackRegistry[event].push({\n          node: node,\n          callback: callback\n        });\n\n        // Remove the callback when the element is removed from the DOM\n        jqLite(container).on('$destroy', function() {\n          var animationDetails = activeAnimationsLookup.get(node);\n\n          if (!animationDetails) {\n            // If there's an animation ongoing, the callback calling code will remove\n            // the event listeners. If we'd remove here, the callbacks would be removed\n            // before the animation ends\n            $animate.off(event, container, callback);\n          }\n        });\n      },\n\n      off: function(event, container, callback) {\n        if (arguments.length === 1 && !isString(arguments[0])) {\n          container = arguments[0];\n          for (var eventType in callbackRegistry) {\n            callbackRegistry[eventType] = filterFromRegistry(callbackRegistry[eventType], container);\n          }\n\n          return;\n        }\n\n        var entries = callbackRegistry[event];\n        if (!entries) return;\n\n        callbackRegistry[event] = arguments.length === 1\n            ? null\n            : filterFromRegistry(entries, container, callback);\n      },\n\n      pin: function(element, parentElement) {\n        assertArg(isElement(element), 'element', 'not an element');\n        assertArg(isElement(parentElement), 'parentElement', 'not an element');\n        element.data(NG_ANIMATE_PIN_DATA, parentElement);\n      },\n\n      push: function(element, event, options, domOperation) {\n        options = options || {};\n        options.domOperation = domOperation;\n        return queueAnimation(element, event, options);\n      },\n\n      // this method has four signatures:\n      //  () - global getter\n      //  (bool) - global setter\n      //  (element) - element getter\n      //  (element, bool) - element setter<F37>\n      enabled: function(element, bool) {\n        var argCount = arguments.length;\n\n        if (argCount === 0) {\n          // () - Global getter\n          bool = !!animationsEnabled;\n        } else {\n          var hasElement = isElement(element);\n\n          if (!hasElement) {\n            // (bool) - Global setter\n            bool = animationsEnabled = !!element;\n          } else {\n            var node = getDomNode(element);\n\n            if (argCount === 1) {\n              // (element) - Element getter\n              bool = !disabledElementsLookup.get(node);\n            } else {\n              // (element, bool) - Element setter\n              if (!disabledElementsLookup.has(node)) {\n                // The element is added to the map for the first time.\n                // Create a listener to remove it on `$destroy` (to avoid memory leak).\n                jqLite(element).on('$destroy', removeFromDisabledElementsLookup);\n              }\n              disabledElementsLookup.set(node, !bool);\n            }\n          }\n        }\n\n        return bool;\n      }\n    };\n\n    return $animate;\n\n    function queueAnimation(originalElement, event, initialOptions) {\n      // we always make a copy of the options since\n      // there should never be any side effects on\n      // the input data when running `$animateCss`.\n      var options = copy(initialOptions);\n\n      var element = stripCommentsFromElement(originalElement);\n      var node = getDomNode(element);\n      var parentNode = node && node.parentNode;\n\n      options = prepareAnimationOptions(options);\n\n      // we create a fake runner with a working promise.\n      // These methods will become available after the digest has passed\n      var runner = new $$AnimateRunner();\n\n      // this is used to trigger callbacks in postDigest mode\n      var runInNextPostDigestOrNow = postDigestTaskFactory();\n\n      if (isArray(options.addClass)) {\n        options.addClass = options.addClass.join(' ');\n      }\n\n      if (options.addClass && !isString(options.addClass)) {\n        options.addClass = null;\n      }\n\n      if (isArray(options.removeClass)) {\n        options.removeClass = options.removeClass.join(' ');\n      }\n\n      if (options.removeClass && !isString(options.removeClass)) {\n        options.removeClass = null;\n      }\n\n      if (options.from && !isObject(options.from)) {\n        options.from = null;\n      }\n\n      if (options.to && !isObject(options.to)) {\n        options.to = null;\n      }\n\n      // If animations are hard-disabled for the whole application there is no need to continue.\n      // There are also situations where a directive issues an animation for a jqLite wrapper that\n      // contains only comment nodes. In this case, there is no way we can perform an animation.\n      if (!animationsEnabled ||\n          !node ||\n          !isAnimatableByFilter(node, event, initialOptions) ||\n          !isAnimatableClassName(node, options)) {\n        close();\n        return runner;\n      }\n\n      var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;\n\n      var documentHidden = $$isDocumentHidden();\n\n      // This is a hard disable of all animations the element itself, therefore  there is no need to\n      // continue further past this point if not enabled\n      // Animations are also disabled if the document is currently hidden (page is not visible\n      // to the user), because browsers slow down or do not flush calls to requestAnimationFrame\n      var skipAnimations = documentHidden || disabledElementsLookup.get(node);\n      var existingAnimation = (!skipAnimations && activeAnimationsLookup.get(node)) || {};\n      var hasExistingAnimation = !!existingAnimation.state;\n\n      // there is no point in traversing the same collection of parent ancestors if a followup\n      // animation will be run on the same element that already did all that checking work\n      if (!skipAnimations && (!hasExistingAnimation || existingAnimation.state !== PRE_DIGEST_STATE)) {\n        skipAnimations = !areAnimationsAllowed(node, parentNode, event);\n      }\n\n      if (skipAnimations) {\n        // Callbacks should fire even if the document is hidden (regression fix for issue #14120)\n        if (documentHidden) notifyProgress(runner, event, 'start', getEventData(options));\n        close();\n        if (documentHidden) notifyProgress(runner, event, 'close', getEventData(options));\n        return runner;\n      }\n\n      if (isStructural) {\n        closeChildAnimations(node);\n      }\n\n      var newAnimation = {\n        structural: isStructural,\n        element: element,\n        event: event,\n        addClass: options.addClass,\n        removeClass: options.removeClass,\n        close: close,\n        options: options,\n        runner: runner\n      };\n\n      if (hasExistingAnimation) {\n        var skipAnimationFlag = isAllowed('skip', newAnimation, existingAnimation);\n        if (skipAnimationFlag) {\n          if (existingAnimation.state === RUNNING_STATE) {\n            close();\n            return runner;\n          } else {\n            mergeAnimationDetails(element, existingAnimation, newAnimation);\n            return existingAnimation.runner;\n          }\n        }\n        var cancelAnimationFlag = isAllowed('cancel', newAnimation, existingAnimation);\n        if (cancelAnimationFlag) {\n          if (existingAnimation.state === RUNNING_STATE) {\n            // this will end the animation right away and it is safe\n            // to do so since the animation is already running and the\n            // runner callback code will run in async\n            existingAnimation.runner.end();\n          } else if (existingAnimation.structural) {\n            // this means that the animation is queued into a digest, but\n            // hasn't started yet. Therefore it is safe to run the close\n            // method which will call the runner methods in async.\n            existingAnimation.close();\n          } else {\n            // this will merge the new animation options into existing animation options\n            mergeAnimationDetails(element, existingAnimation, newAnimation);\n\n            return existingAnimation.runner;\n          }\n        } else {\n          // a joined animation means that this animation will take over the existing one\n          // so an example would involve a leave animation taking over an enter. Then when\n          // the postDigest kicks in the enter will be ignored.\n          var joinAnimationFlag = isAllowed('join', newAnimation, existingAnimation);\n          if (joinAnimationFlag) {\n            if (existingAnimation.state === RUNNING_STATE) {\n              normalizeAnimationDetails(element, newAnimation);\n            } else {\n              applyGeneratedPreparationClasses($$jqLite, element, isStructural ? event : null, options);\n\n              event = newAnimation.event = existingAnimation.event;\n              options = mergeAnimationDetails(element, existingAnimation, newAnimation);\n\n              //we return the same runner since only the option values of this animation will\n              //be fed into the `existingAnimation`.\n              return existingAnimation.runner;\n            }\n          }\n        }\n      } else {\n        // normalization in this case means that it removes redundant CSS classes that\n        // already exist (addClass) or do not exist (removeClass) on the element\n        normalizeAnimationDetails(element, newAnimation);\n      }\n\n      // when the options are merged and cleaned up we may end up not having to do\n      // an animation at all, therefore we should check this before issuing a post\n      // digest callback. Structural animations will always run no matter what.\n      var isValidAnimation = newAnimation.structural;\n      if (!isValidAnimation) {\n        // animate (from/to) can be quickly checked first, otherwise we check if any classes are present\n        isValidAnimation = (newAnimation.event === 'animate' && Object.keys(newAnimation.options.to || {}).length > 0)\n                            || hasAnimationClasses(newAnimation);\n      }\n\n      if (!isValidAnimation) {\n        close();\n        clearElementAnimationState(node);\n        return runner;\n      }\n\n      // the counter keeps track of cancelled animations\n      var counter = (existingAnimation.counter || 0) + 1;\n      newAnimation.counter = counter;\n\n      markElementAnimationState(node, PRE_DIGEST_STATE, newAnimation);\n\n      $rootScope.$$postDigest(function() {\n        // It is possible that the DOM nodes inside `originalElement` have been replaced. This can\n        // happen if the animated element is a transcluded clone and also has a `templateUrl`\n        // directive on it. Therefore, we must recreate `element` in order to interact with the\n        // actual DOM nodes.\n        // Note: We still need to use the old `node` for certain things, such as looking up in\n        //       HashMaps where it was used as the key.\n\n        element = stripCommentsFromElement(originalElement);\n\n        var animationDetails = activeAnimationsLookup.get(node);\n        var animationCancelled = !animationDetails;\n        animationDetails = animationDetails || {};\n\n        // if addClass/removeClass is called before something like enter then the\n        // registered parent element may not be present. The code below will ensure\n        // that a final value for parent element is obtained\n        var parentElement = element.parent() || [];\n\n        // animate/structural/class-based animations all have requirements. Otherwise there\n        // is no point in performing an animation. The parent node must also be set.\n        var isValidAnimation = parentElement.length > 0\n                                && (animationDetails.event === 'animate'\n                                    || animationDetails.structural\n                                    || hasAnimationClasses(animationDetails));\n\n        // this means that the previous animation was cancelled\n        // even if the follow-up animation is the same event\n        if (animationCancelled || animationDetails.counter !== counter || !isValidAnimation) {\n          // if another animation did not take over then we need\n          // to make sure that the domOperation and options are\n          // handled accordingly\n          if (animationCancelled) {\n            applyAnimationClasses(element, options);\n            applyAnimationStyles(element, options);\n          }\n\n          // if the event changed from something like enter to leave then we do\n          // it, otherwise if it's the same then the end result will be the same too\n          if (animationCancelled || (isStructural && animationDetails.event !== event)) {\n            options.domOperation();\n            runner.end();\n          }\n\n          // in the event that the element animation was not cancelled or a follow-up animation\n          // isn't allowed to animate from here then we need to clear the state of the element\n          // so that any future animations won't read the expired animation data.\n          if (!isValidAnimation) {\n            clearElementAnimationState(node);\n          }\n\n          return;\n        }\n\n        // this combined multiple class to addClass / removeClass into a setClass event\n        // so long as a structural event did not take over the animation\n        event = !animationDetails.structural && hasAnimationClasses(animationDetails, true)\n            ? 'setClass'\n            : animationDetails.event;\n\n        markElementAnimationState(node, RUNNING_STATE);\n        var realRunner = $$animation(element, event, animationDetails.options);\n\n        // this will update the runner's flow-control events based on\n        // the `realRunner` object.\n        runner.setHost(realRunner);\n        notifyProgress(runner, event, 'start', getEventData(options));\n\n        realRunner.done(function(status) {\n          close(!status);\n          var animationDetails = activeAnimationsLookup.get(node);\n          if (animationDetails && animationDetails.counter === counter) {\n            clearElementAnimationState(node);\n          }\n          notifyProgress(runner, event, 'close', getEventData(options));\n        });\n      });\n\n      return runner;\n\n      function notifyProgress(runner, event, phase, data) {\n        runInNextPostDigestOrNow(function() {\n          var callbacks = findCallbacks(parentNode, node, event);\n          if (callbacks.length) {\n            // do not optimize this call here to RAF because\n            // we don't know how heavy the callback code here will\n            // be and if this code is buffered then this can\n            // lead to a performance regression.\n            $$rAF(function() {\n              forEach(callbacks, function(callback) {\n                callback(element, phase, data);\n              });\n              cleanupEventListeners(phase, node);\n            });\n          } else {\n            cleanupEventListeners(phase, node);\n          }\n        });\n        runner.progress(event, phase, data);\n      }\n\n      function close(reject) {\n        clearGeneratedClasses(element, options);\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n        options.domOperation();\n        runner.complete(!reject);\n      }\n    }\n\n    function closeChildAnimations(node) {\n      var children = node.querySelectorAll('[' + NG_ANIMATE_ATTR_NAME + ']');\n      forEach(children, function(child) {\n        var state = parseInt(child.getAttribute(NG_ANIMATE_ATTR_NAME), 10);\n        var animationDetails = activeAnimationsLookup.get(child);\n        if (animationDetails) {\n          switch (state) {\n            case RUNNING_STATE:\n              animationDetails.runner.end();\n              /* falls through */\n            case PRE_DIGEST_STATE:\n              activeAnimationsLookup.delete(child);\n              break;\n          }\n        }\n      });\n    }\n\n    function clearElementAnimationState(node) {\n      node.removeAttribute(NG_ANIMATE_ATTR_NAME);\n      activeAnimationsLookup.delete(node);\n    }\n\n    /**\n     * This fn returns false if any of the following is true:\n     * a) animations on any parent element are disabled, and animations on the element aren't explicitly allowed\n     * b) a parent element has an ongoing structural animation, and animateChildren is false\n     * c) the element is not a child of the body\n     * d) the element is not a child of the $rootElement\n     */\n    function areAnimationsAllowed(node, parentNode, event) {\n      var bodyNode = $document[0].body;\n      var rootNode = getDomNode($rootElement);\n\n      var bodyNodeDetected = (node === bodyNode) || node.nodeName === 'HTML';\n      var rootNodeDetected = (node === rootNode);\n      var parentAnimationDetected = false;\n      var elementDisabled = disabledElementsLookup.get(node);\n      var animateChildren;\n\n      var parentHost = jqLite.data(node, NG_ANIMATE_PIN_DATA);\n      if (parentHost) {\n        parentNode = getDomNode(parentHost);\n      }\n\n      while (parentNode) {\n        if (!rootNodeDetected) {\n          // AngularJS doesn't want to attempt to animate elements outside of the application\n          // therefore we need to ensure that the rootElement is an ancestor of the current element\n          rootNodeDetected = (parentNode === rootNode);\n        }\n\n        if (parentNode.nodeType !== ELEMENT_NODE) {\n          // no point in inspecting the #document element\n          break;\n        }\n\n        var details = activeAnimationsLookup.get(parentNode) || {};\n        // either an enter, leave or move animation will commence\n        // therefore we can't allow any animations to take place\n        // but if a parent animation is class-based then that's ok\n        if (!parentAnimationDetected) {\n          var parentNodeDisabled = disabledElementsLookup.get(parentNode);\n\n          if (parentNodeDisabled === true && elementDisabled !== false) {\n            // disable animations if the user hasn't explicitly enabled animations on the\n            // current element\n            elementDisabled = true;\n            // element is disabled via parent element, no need to check anything else\n            break;\n          } else if (parentNodeDisabled === false) {\n            elementDisabled = false;\n          }\n          parentAnimationDetected = details.structural;\n        }\n\n        if (isUndefined(animateChildren) || animateChildren === true) {\n          var value = jqLite.data(parentNode, NG_ANIMATE_CHILDREN_DATA);\n          if (isDefined(value)) {\n            animateChildren = value;\n          }\n        }\n\n        // there is no need to continue traversing at this point\n        if (parentAnimationDetected && animateChildren === false) break;\n\n        if (!bodyNodeDetected) {\n          // we also need to ensure that the element is or will be a part of the body element\n          // otherwise it is pointless to even issue an animation to be rendered\n          bodyNodeDetected = (parentNode === bodyNode);\n        }\n\n        if (bodyNodeDetected && rootNodeDetected) {\n          // If both body and root have been found, any other checks are pointless,\n          // as no animation data should live outside the application\n          break;\n        }\n\n        if (!rootNodeDetected) {\n          // If `rootNode` is not detected, check if `parentNode` is pinned to another element\n          parentHost = jqLite.data(parentNode, NG_ANIMATE_PIN_DATA);\n          if (parentHost) {\n            // The pin target element becomes the next parent element\n            parentNode = getDomNode(parentHost);\n            continue;\n          }\n        }\n\n        parentNode = parentNode.parentNode;\n      }\n\n      var allowAnimation = (!parentAnimationDetected || animateChildren) && elementDisabled !== true;\n      return allowAnimation && rootNodeDetected && bodyNodeDetected;\n    }\n\n    function markElementAnimationState(node, state, details) {\n      details = details || {};\n      details.state = state;\n\n      node.setAttribute(NG_ANIMATE_ATTR_NAME, state);\n\n      var oldValue = activeAnimationsLookup.get(node);\n      var newValue = oldValue\n          ? extend(oldValue, details)\n          : details;\n      activeAnimationsLookup.set(node, newValue);\n    }\n  }];\n}];\n\n/** @this */\nvar $$AnimateCacheProvider = function() {\n\n  var KEY = '$$ngAnimateParentKey';\n  var parentCounter = 0;\n  var cache = Object.create(null);\n\n  this.$get = [function() {\n    return {\n      cacheKey: function(node, method, addClass, removeClass) {\n        var parentNode = node.parentNode;\n        var parentID = parentNode[KEY] || (parentNode[KEY] = ++parentCounter);\n        var parts = [parentID, method, node.getAttribute('class')];\n        if (addClass) {\n          parts.push(addClass);\n        }\n        if (removeClass) {\n          parts.push(removeClass);\n        }\n        return parts.join(' ');\n      },\n\n      containsCachedAnimationWithoutDuration: function(key) {\n        var entry = cache[key];\n\n        // nothing cached, so go ahead and animate\n        // otherwise it should be a valid animation\n        return (entry && !entry.isValid) || false;\n      },\n\n      flush: function() {\n        cache = Object.create(null);\n      },\n\n      count: function(key) {\n        var entry = cache[key];\n        return entry ? entry.total : 0;\n      },\n\n      get: function(key) {\n        var entry = cache[key];\n        return entry && entry.value;\n      },\n\n      put: function(key, value, isValid) {\n        if (!cache[key]) {\n          cache[key] = { total: 1, value: value, isValid: isValid };\n        } else {\n          cache[key].total++;\n          cache[key].value = value;\n        }\n      }\n    };\n  }];\n};\n\n/* exported $$AnimationProvider */\n\nvar $$AnimationProvider = ['$animateProvider', /** @this */ function($animateProvider) {\n  var NG_ANIMATE_REF_ATTR = 'ng-animate-ref';\n\n  var drivers = this.drivers = [];\n\n  var RUNNER_STORAGE_KEY = '$$animationRunner';\n  var PREPARE_CLASSES_KEY = '$$animatePrepareClasses';\n\n  function setRunner(element, runner) {\n    element.data(RUNNER_STORAGE_KEY, runner);\n  }\n\n  function removeRunner(element) {\n    element.removeData(RUNNER_STORAGE_KEY);\n  }\n\n  function getRunner(element) {\n    return element.data(RUNNER_STORAGE_KEY);\n  }\n\n  this.$get = ['$$jqLite', '$rootScope', '$injector', '$$AnimateRunner', '$$Map', '$$rAFScheduler', '$$animateCache',\n       function($$jqLite,   $rootScope,   $injector,   $$AnimateRunner,   $$Map,   $$rAFScheduler, $$animateCache) {\n\n    var animationQueue = [];\n    var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);\n\n    function sortAnimations(animations) {\n      var tree = { children: [] };\n      var i, lookup = new $$Map();\n\n      // this is done first beforehand so that the map\n      // is filled with a list of the elements that will be animated\n      for (i = 0; i < animations.length; i++) {\n        var animation = animations[i];\n        lookup.set(animation.domNode, animations[i] = {\n          domNode: animation.domNode,\n          element: animation.element,\n          fn: animation.fn,\n          children: []\n        });\n      }\n\n      for (i = 0; i < animations.length; i++) {\n        processNode(animations[i]);\n      }\n\n      return flatten(tree);\n\n      function processNode(entry) {\n        if (entry.processed) return entry;\n        entry.processed = true;\n\n        var elementNode = entry.domNode;\n        var parentNode = elementNode.parentNode;\n        lookup.set(elementNode, entry);\n\n        var parentEntry;\n        while (parentNode) {\n          parentEntry = lookup.get(parentNode);\n          if (parentEntry) {\n            if (!parentEntry.processed) {\n              parentEntry = processNode(parentEntry);\n            }\n            break;\n          }\n          parentNode = parentNode.parentNode;\n        }\n\n        (parentEntry || tree).children.push(entry);\n        return entry;\n      }\n\n      function flatten(tree) {\n        var result = [];\n        var queue = [];\n        var i;\n\n        for (i = 0; i < tree.children.length; i++) {\n          queue.push(tree.children[i]);\n        }\n\n        var remainingLevelEntries = queue.length;\n        var nextLevelEntries = 0;\n        var row = [];\n\n        for (i = 0; i < queue.length; i++) {\n          var entry = queue[i];\n          if (remainingLevelEntries <= 0) {\n            remainingLevelEntries = nextLevelEntries;\n            nextLevelEntries = 0;\n            result.push(row);\n            row = [];\n          }\n          row.push(entry);\n          entry.children.forEach(function(childEntry) {\n            nextLevelEntries++;\n            queue.push(childEntry);\n          });\n          remainingLevelEntries--;\n        }\n\n        if (row.length) {\n          result.push(row);\n        }\n\n        return result;\n      }\n    }\n\n    // TODO(matsko): document the signature in a better way\n    return function(element, event, options) {\n      options = prepareAnimationOptions(options);\n      var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;\n\n      // there is no animation at the current moment, however\n      // these runner methods will get later updated with the\n      // methods leading into the driver's end/cancel methods\n      // for now they just stop the animation from starting\n      var runner = new $$AnimateRunner({\n        end: function() { close(); },\n        cancel: function() { close(true); }\n      });\n\n      if (!drivers.length) {\n        close();\n        return runner;\n      }\n\n      var classes = mergeClasses(element.attr('class'), mergeClasses(options.addClass, options.removeClass));\n      var tempClasses = options.tempClasses;\n      if (tempClasses) {\n        classes += ' ' + tempClasses;\n        options.tempClasses = null;\n      }\n\n      if (isStructural) {\n        element.data(PREPARE_CLASSES_KEY, 'ng-' + event + PREPARE_CLASS_SUFFIX);\n      }\n\n      setRunner(element, runner);\n\n      animationQueue.push({\n        // this data is used by the postDigest code and passed into\n        // the driver step function\n        element: element,\n        classes: classes,\n        event: event,\n        structural: isStructural,\n        options: options,\n        beforeStart: beforeStart,\n        close: close\n      });\n\n      element.on('$destroy', handleDestroyedElement);\n\n      // we only want there to be one function called within the post digest\n      // block. This way we can group animations for all the animations that\n      // were apart of the same postDigest flush call.\n      if (animationQueue.length > 1) return runner;\n\n      $rootScope.$$postDigest(function() {\n        var animations = [];\n        forEach(animationQueue, function(entry) {\n          // the element was destroyed early on which removed the runner\n          // form its storage. This means we can't animate this element\n          // at all and it already has been closed due to destruction.\n          if (getRunner(entry.element)) {\n            animations.push(entry);\n          } else {\n            entry.close();\n          }\n        });\n\n        // now any future animations will be in another postDigest\n        animationQueue.length = 0;\n\n        var groupedAnimations = groupAnimations(animations);\n        var toBeSortedAnimations = [];\n\n        forEach(groupedAnimations, function(animationEntry) {\n          var element = animationEntry.from ? animationEntry.from.element : animationEntry.element;\n          var extraClasses = options.addClass;\n\n          extraClasses = (extraClasses ? (extraClasses + ' ') : '') + NG_ANIMATE_CLASSNAME;\n          var cacheKey = $$animateCache.cacheKey(element[0], animationEntry.event, extraClasses, options.removeClass);\n\n          toBeSortedAnimations.push({\n            element: element,\n            domNode: getDomNode(element),\n            fn: function triggerAnimationStart() {\n              var startAnimationFn, closeFn = animationEntry.close;\n\n              // in the event that we've cached the animation status for this element\n              // and it's in fact an invalid animation (something that has duration = 0)\n              // then we should skip all the heavy work from here on\n              if ($$animateCache.containsCachedAnimationWithoutDuration(cacheKey)) {\n                closeFn();\n                return;\n              }\n\n              // it's important that we apply the `ng-animate` CSS class and the\n              // temporary classes before we do any driver invoking since these\n              // CSS classes may be required for proper CSS detection.\n              animationEntry.beforeStart();\n\n              // in the event that the element was removed before the digest runs or\n              // during the RAF sequencing then we should not trigger the animation.\n              var targetElement = animationEntry.anchors\n                  ? (animationEntry.from.element || animationEntry.to.element)\n                  : animationEntry.element;\n\n              if (getRunner(targetElement)) {\n                var operation = invokeFirstDriver(animationEntry);\n                if (operation) {\n                  startAnimationFn = operation.start;\n                }\n              }\n\n              if (!startAnimationFn) {\n                closeFn();\n              } else {\n                var animationRunner = startAnimationFn();\n                animationRunner.done(function(status) {\n                  closeFn(!status);\n                });\n                updateAnimationRunners(animationEntry, animationRunner);\n              }\n            }\n          });\n        });\n\n        // we need to sort each of the animations in order of parent to child\n        // relationships. This ensures that the child classes are applied at the\n        // right time.\n        var finalAnimations = sortAnimations(toBeSortedAnimations);\n        for (var i = 0; i < finalAnimations.length; i++) {\n          var innerArray = finalAnimations[i];\n          for (var j = 0; j < innerArray.length; j++) {\n            var entry = innerArray[j];\n            var element = entry.element;\n\n            // the RAFScheduler code only uses functions\n            finalAnimations[i][j] = entry.fn;\n\n            // the first row of elements shouldn't have a prepare-class added to them\n            // since the elements are at the top of the animation hierarchy and they\n            // will be applied without a RAF having to pass...\n            if (i === 0) {\n              element.removeData(PREPARE_CLASSES_KEY);\n              continue;\n            }\n\n            var prepareClassName = element.data(PREPARE_CLASSES_KEY);\n            if (prepareClassName) {\n              $$jqLite.addClass(element, prepareClassName);\n            }\n          }\n        }\n\n        $$rAFScheduler(finalAnimations);\n      });\n\n      return runner;\n\n      // TODO(matsko): change to reference nodes\n      function getAnchorNodes(node) {\n        var SELECTOR = '[' + NG_ANIMATE_REF_ATTR + ']';\n        var items = node.hasAttribute(NG_ANIMATE_REF_ATTR)\n              ? [node]\n              : node.querySelectorAll(SELECTOR);\n        var anchors = [];\n        forEach(items, function(node) {\n          var attr = node.getAttribute(NG_ANIMATE_REF_ATTR);\n          if (attr && attr.length) {\n            anchors.push(node);\n          }\n        });\n        return anchors;\n      }\n\n      function groupAnimations(animations) {\n        var preparedAnimations = [];\n        var refLookup = {};\n        forEach(animations, function(animation, index) {\n          var element = animation.element;\n          var node = getDomNode(element);\n          var event = animation.event;\n          var enterOrMove = ['enter', 'move'].indexOf(event) >= 0;\n          var anchorNodes = animation.structural ? getAnchorNodes(node) : [];\n\n          if (anchorNodes.length) {\n            var direction = enterOrMove ? 'to' : 'from';\n\n            forEach(anchorNodes, function(anchor) {\n              var key = anchor.getAttribute(NG_ANIMATE_REF_ATTR);\n              refLookup[key] = refLookup[key] || {};\n              refLookup[key][direction] = {\n                animationID: index,\n                element: jqLite(anchor)\n              };\n            });\n          } else {\n            preparedAnimations.push(animation);\n          }\n        });\n\n        var usedIndicesLookup = {};\n        var anchorGroups = {};\n        forEach(refLookup, function(operations, key) {\n          var from = operations.from;\n          var to = operations.to;\n\n          if (!from || !to) {\n            // only one of these is set therefore we can't have an\n            // anchor animation since all three pieces are required\n            var index = from ? from.animationID : to.animationID;\n            var indexKey = index.toString();\n            if (!usedIndicesLookup[indexKey]) {\n              usedIndicesLookup[indexKey] = true;\n              preparedAnimations.push(animations[index]);\n            }\n            return;\n          }\n\n          var fromAnimation = animations[from.animationID];\n          var toAnimation = animations[to.animationID];\n          var lookupKey = from.animationID.toString();\n          if (!anchorGroups[lookupKey]) {\n            var group = anchorGroups[lookupKey] = {\n              structural: true,\n              beforeStart: function() {\n                fromAnimation.beforeStart();\n                toAnimation.beforeStart();\n              },\n              close: function() {\n                fromAnimation.close();\n                toAnimation.close();\n              },\n              classes: cssClassesIntersection(fromAnimation.classes, toAnimation.classes),\n              from: fromAnimation,\n              to: toAnimation,\n              anchors: [] // TODO(matsko): change to reference nodes\n            };\n\n            // the anchor animations require that the from and to elements both have at least\n            // one shared CSS class which effectively marries the two elements together to use\n            // the same animation driver and to properly sequence the anchor animation.\n            if (group.classes.length) {\n              preparedAnimations.push(group);\n            } else {\n              preparedAnimations.push(fromAnimation);\n              preparedAnimations.push(toAnimation);\n            }\n          }\n\n          anchorGroups[lookupKey].anchors.push({\n            'out': from.element, 'in': to.element\n          });\n        });\n\n        return preparedAnimations;\n      }\n\n      function cssClassesIntersection(a,b) {\n        a = a.split(' ');\n        b = b.split(' ');\n        var matches = [];\n\n        for (var i = 0; i < a.length; i++) {\n          var aa = a[i];\n          if (aa.substring(0,3) === 'ng-') continue;\n\n          for (var j = 0; j < b.length; j++) {\n            if (aa === b[j]) {\n              matches.push(aa);\n              break;\n            }\n          }\n        }\n\n        return matches.join(' ');\n      }\n\n      function invokeFirstDriver(animationDetails) {\n        // we loop in reverse order since the more general drivers (like CSS and JS)\n        // may attempt more elements, but custom drivers are more particular\n        for (var i = drivers.length - 1; i >= 0; i--) {\n          var driverName = drivers[i];\n          var factory = $injector.get(driverName);\n          var driver = factory(animationDetails);\n          if (driver) {\n            return driver;\n          }\n        }\n      }\n\n      function beforeStart() {\n        tempClasses = (tempClasses ? (tempClasses + ' ') : '') + NG_ANIMATE_CLASSNAME;\n        $$jqLite.addClass(element, tempClasses);\n\n        var prepareClassName = element.data(PREPARE_CLASSES_KEY);\n        if (prepareClassName) {\n          $$jqLite.removeClass(element, prepareClassName);\n          prepareClassName = null;\n        }\n      }\n\n      function updateAnimationRunners(animation, newRunner) {\n        if (animation.from && animation.to) {\n          update(animation.from.element);\n          update(animation.to.element);\n        } else {\n          update(animation.element);\n        }\n\n        function update(element) {\n          var runner = getRunner(element);\n          if (runner) runner.setHost(newRunner);\n        }\n      }\n\n      function handleDestroyedElement() {\n        var runner = getRunner(element);\n        if (runner && (event !== 'leave' || !options.$$domOperationFired)) {\n          runner.end();\n        }\n      }\n\n      function close(rejected) {\n        element.off('$destroy', handleDestroyedElement);\n        removeRunner(element);\n\n        applyAnimationClasses(element, options);\n        applyAnimationStyles(element, options);\n        options.domOperation();\n\n        if (tempClasses) {\n          $$jqLite.removeClass(element, tempClasses);\n        }\n\n        runner.complete(!rejected);\n      }\n    };\n  }];\n}];\n\n/**\n * @ngdoc directive\n * @name ngAnimateSwap\n * @restrict A\n * @scope\n *\n * @description\n *\n * ngAnimateSwap is a animation-oriented directive that allows for the container to\n * be removed and entered in whenever the associated expression changes. A\n * common usecase for this directive is a rotating banner or slider component which\n * contains one image being present at a time. When the active image changes\n * then the old image will perform a `leave` animation and the new element\n * will be inserted via an `enter` animation.\n *\n * @animations\n * | Animation                        | Occurs                               |\n * |----------------------------------|--------------------------------------|\n * | {@link ng.$animate#enter enter}  | when the new element is inserted to the DOM  |\n * | {@link ng.$animate#leave leave}  | when the old element is removed from the DOM |\n *\n * @example\n * <example name=\"ngAnimateSwap-directive\" module=\"ngAnimateSwapExample\"\n *          deps=\"angular-animate.js\"\n *          animations=\"true\" fixBase=\"true\">\n *   <file name=\"index.html\">\n *     <div class=\"container\" ng-controller=\"AppCtrl\">\n *       <div ng-animate-swap=\"number\" class=\"cell swap-animation\" ng-class=\"colorClass(number)\">\n *         {{ number }}\n *       </div>\n *     </div>\n *   </file>\n *   <file name=\"script.js\">\n *     angular.module('ngAnimateSwapExample', ['ngAnimate'])\n *       .controller('AppCtrl', ['$scope', '$interval', function($scope, $interval) {\n *         $scope.number = 0;\n *         $interval(function() {\n *           $scope.number++;\n *         }, 1000);\n *\n *         var colors = ['red','blue','green','yellow','orange'];\n *         $scope.colorClass = function(number) {\n *           return colors[number % colors.length];\n *         };\n *       }]);\n *   </file>\n *  <file name=\"animations.css\">\n *  .container {\n *    height:250px;\n *    width:250px;\n *    position:relative;\n *    overflow:hidden;\n *    border:2px solid black;\n *  }\n *  .container .cell {\n *    font-size:150px;\n *    text-align:center;\n *    line-height:250px;\n *    position:absolute;\n *    top:0;\n *    left:0;\n *    right:0;\n *    border-bottom:2px solid black;\n *  }\n *  .swap-animation.ng-enter, .swap-animation.ng-leave {\n *    transition:0.5s linear all;\n *  }\n *  .swap-animation.ng-enter {\n *    top:-250px;\n *  }\n *  .swap-animation.ng-enter-active {\n *    top:0px;\n *  }\n *  .swap-animation.ng-leave {\n *    top:0px;\n *  }\n *  .swap-animation.ng-leave-active {\n *    top:250px;\n *  }\n *  .red { background:red; }\n *  .green { background:green; }\n *  .blue { background:blue; }\n *  .yellow { background:yellow; }\n *  .orange { background:orange; }\n *  </file>\n * </example>\n */\nvar ngAnimateSwapDirective = ['$animate', function($animate) {\n  return {\n    restrict: 'A',\n    transclude: 'element',\n    terminal: true,\n    priority: 550, // We use 550 here to ensure that the directive is caught before others,\n                   // but after `ngIf` (at priority 600).\n    link: function(scope, $element, attrs, ctrl, $transclude) {\n      var previousElement, previousScope;\n      scope.$watchCollection(attrs.ngAnimateSwap || attrs['for'], function(value) {\n        if (previousElement) {\n          $animate.leave(previousElement);\n        }\n        if (previousScope) {\n          previousScope.$destroy();\n          previousScope = null;\n        }\n        if (value || value === 0) {\n          $transclude(function(clone, childScope) {\n            previousElement = clone;\n            previousScope = childScope;\n            $animate.enter(clone, null, $element);\n          });\n        }\n      });\n    }\n  };\n}];\n\n/**\n * @ngdoc module\n * @name ngAnimate\n * @description\n *\n * The `ngAnimate` module provides support for CSS-based animations (keyframes and transitions) as well as JavaScript-based animations via\n * callback hooks. Animations are not enabled by default, however, by including `ngAnimate` the animation hooks are enabled for an AngularJS app.\n *\n * ## Usage\n * Simply put, there are two ways to make use of animations when ngAnimate is used: by using **CSS** and **JavaScript**. The former works purely based\n * using CSS (by using matching CSS selectors/styles) and the latter triggers animations that are registered via `module.animation()`. For\n * both CSS and JS animations the sole requirement is to have a matching `CSS class` that exists both in the registered animation and within\n * the HTML element that the animation will be triggered on.\n *\n * ## Directive Support\n * The following directives are \"animation aware\":\n *\n * | Directive                                                                     | Supported Animations                                                      |\n * |-------------------------------------------------------------------------------|---------------------------------------------------------------------------|\n * | {@link ng.directive:form#animations form / ngForm}                            | add and remove ({@link ng.directive:form#css-classes various classes})    |\n * | {@link ngAnimate.directive:ngAnimateSwap#animations ngAnimateSwap}            | enter and leave                                                           |\n * | {@link ng.directive:ngClass#animations ngClass / {{class&#125;&#8203;&#125;}  | add and remove                                                            |\n * | {@link ng.directive:ngClassEven#animations ngClassEven}                       | add and remove                                                            |\n * | {@link ng.directive:ngClassOdd#animations ngClassOdd}                         | add and remove                                                            |\n * | {@link ng.directive:ngHide#animations ngHide}                                 | add and remove (the `ng-hide` class)                                      |\n * | {@link ng.directive:ngIf#animations ngIf}                                     | enter and leave                                                           |\n * | {@link ng.directive:ngInclude#animations ngInclude}                           | enter and leave                                                           |\n * | {@link module:ngMessages#animations ngMessage / ngMessageExp}                 | enter and leave                                                           |\n * | {@link module:ngMessages#animations ngMessages}                               | add and remove (the `ng-active`/`ng-inactive` classes)                    |\n * | {@link ng.directive:ngModel#animations ngModel}                               | add and remove ({@link ng.directive:ngModel#css-classes various classes}) |\n * | {@link ng.directive:ngRepeat#animations ngRepeat}                             | enter, leave, and move                                                    |\n * | {@link ng.directive:ngShow#animations ngShow}                                 | add and remove (the `ng-hide` class)                                      |\n * | {@link ng.directive:ngSwitch#animations ngSwitch}                             | enter and leave                                                           |\n * | {@link ngRoute.directive:ngView#animations ngView}                            | enter and leave                                                           |\n *\n * (More information can be found by visiting the documentation associated with each directive.)\n *\n * For a full breakdown of the steps involved during each animation event, refer to the\n * {@link ng.$animate `$animate` API docs}.\n *\n * ## CSS-based Animations\n *\n * CSS-based animations with ngAnimate are unique since they require no JavaScript code at all. By using a CSS class that we reference between our HTML\n * and CSS code we can create an animation that will be picked up by AngularJS when an underlying directive performs an operation.\n *\n * The example below shows how an `enter` animation can be made possible on an element using `ng-if`:\n *\n * ```html\n * <div ng-if=\"bool\" class=\"fade\">\n *    Fade me in out\n * </div>\n * <button ng-click=\"bool=true\">Fade In!</button>\n * <button ng-click=\"bool=false\">Fade Out!</button>\n * ```\n *\n * Notice the CSS class **fade**? We can now create the CSS transition code that references this class:\n *\n * ```css\n * /&#42; The starting CSS styles for the enter animation &#42;/\n * .fade.ng-enter {\n *   transition:0.5s linear all;\n *   opacity:0;\n * }\n *\n * /&#42; The finishing CSS styles for the enter animation &#42;/\n * .fade.ng-enter.ng-enter-active {\n *   opacity:1;\n * }\n * ```\n *\n * The key thing to remember here is that, depending on the animation event (which each of the directives above trigger depending on what's going on) two\n * generated CSS classes will be applied to the element; in the example above we have `.ng-enter` and `.ng-enter-active`. For CSS transitions, the transition\n * code **must** be defined within the starting CSS class (in this case `.ng-enter`). The destination class is what the transition will animate towards.\n *\n * If for example we wanted to create animations for `leave` and `move` (ngRepeat triggers move) then we can do so using the same CSS naming conventions:\n *\n * ```css\n * /&#42; now the element will fade out before it is removed from the DOM &#42;/\n * .fade.ng-leave {\n *   transition:0.5s linear all;\n *   opacity:1;\n * }\n * .fade.ng-leave.ng-leave-active {\n *   opacity:0;\n * }\n * ```\n *\n * We can also make use of **CSS Keyframes** by referencing the keyframe animation within the starting CSS class:\n *\n * ```css\n * /&#42; there is no need to define anything inside of the destination\n * CSS class since the keyframe will take charge of the animation &#42;/\n * .fade.ng-leave {\n *   animation: my_fade_animation 0.5s linear;\n *   -webkit-animation: my_fade_animation 0.5s linear;\n * }\n *\n * @keyframes my_fade_animation {\n *   from { opacity:1; }\n *   to { opacity:0; }\n * }\n *\n * @-webkit-keyframes my_fade_animation {\n *   from { opacity:1; }\n *   to { opacity:0; }\n * }\n * ```\n *\n * Feel free also mix transitions and keyframes together as well as any other CSS classes on the same element.\n *\n * ### CSS Class-based Animations\n *\n * Class-based animations (animations that are triggered via `ngClass`, `ngShow`, `ngHide` and some other directives) have a slightly different\n * naming convention. Class-based animations are basic enough that a standard transition or keyframe can be referenced on the class being added\n * and removed.\n *\n * For example if we wanted to do a CSS animation for `ngHide` then we place an animation on the `.ng-hide` CSS class:\n *\n * ```html\n * <div ng-show=\"bool\" class=\"fade\">\n *   Show and hide me\n * </div>\n * <button ng-click=\"bool=!bool\">Toggle</button>\n *\n * <style>\n * .fade.ng-hide {\n *   transition:0.5s linear all;\n *   opacity:0;\n * }\n * </style>\n * ```\n *\n * All that is going on here with ngShow/ngHide behind the scenes is the `.ng-hide` class is added/removed (when the hidden state is valid). Since\n * ngShow and ngHide are animation aware then we can match up a transition and ngAnimate handles the rest.\n *\n * In addition the addition and removal of the CSS class, ngAnimate also provides two helper methods that we can use to further decorate the animation\n * with CSS styles.\n *\n * ```html\n * <div ng-class=\"{on:onOff}\" class=\"highlight\">\n *   Highlight this box\n * </div>\n * <button ng-click=\"onOff=!onOff\">Toggle</button>\n *\n * <style>\n * .highlight {\n *   transition:0.5s linear all;\n * }\n * .highlight.on-add {\n *   background:white;\n * }\n * .highlight.on {\n *   background:yellow;\n * }\n * .highlight.on-remove {\n *   background:black;\n * }\n * </style>\n * ```\n *\n * We can also make use of CSS keyframes by placing them within the CSS classes.\n *\n *\n * ### CSS Staggering Animations\n * A Staggering animation is a collection of animations that are issued with a slight delay in between each successive operation resulting in a\n * curtain-like effect. The ngAnimate module (versions >=1.2) supports staggering animations and the stagger effect can be\n * performed by creating a **ng-EVENT-stagger** CSS class and attaching that class to the base CSS class used for\n * the animation. The style property expected within the stagger class can either be a **transition-delay** or an\n * **animation-delay** property (or both if your animation contains both transitions and keyframe animations).\n *\n * ```css\n * .my-animation.ng-enter {\n *   /&#42; standard transition code &#42;/\n *   transition: 1s linear all;\n *   opacity:0;\n * }\n * .my-animation.ng-enter-stagger {\n *   /&#42; this will have a 100ms delay between each successive leave animation &#42;/\n *   transition-delay: 0.1s;\n *\n *   /&#42; As of 1.4.4, this must always be set: it signals ngAnimate\n *     to not accidentally inherit a delay property from another CSS class &#42;/\n *   transition-duration: 0s;\n *\n *   /&#42; if you are using animations instead of transitions you should configure as follows:\n *     animation-delay: 0.1s;\n *     animation-duration: 0s; &#42;/\n * }\n * .my-animation.ng-enter.ng-enter-active {\n *   /&#42; standard transition styles &#42;/\n *   opacity:1;\n * }\n * ```\n *\n * Staggering animations work by default in ngRepeat (so long as the CSS class is defined). Outside of ngRepeat, to use staggering animations\n * on your own, they can be triggered by firing multiple calls to the same event on $animate. However, the restrictions surrounding this\n * are that each of the elements must have the same CSS className value as well as the same parent element. A stagger operation\n * will also be reset if one or more animation frames have passed since the multiple calls to `$animate` were fired.\n *\n * The following code will issue the **ng-leave-stagger** event on the element provided:\n *\n * ```js\n * var kids = parent.children();\n *\n * $animate.leave(kids[0]); //stagger index=0\n * $animate.leave(kids[1]); //stagger index=1\n * $animate.leave(kids[2]); //stagger index=2\n * $animate.leave(kids[3]); //stagger index=3\n * $animate.leave(kids[4]); //stagger index=4\n *\n * window.requestAnimationFrame(function() {\n *   //stagger has reset itself\n *   $animate.leave(kids[5]); //stagger index=0\n *   $animate.leave(kids[6]); //stagger index=1\n *\n *   $scope.$digest();\n * });\n * ```\n *\n * Stagger animations are currently only supported within CSS-defined animations.\n *\n * ### The `ng-animate` CSS class\n *\n * When ngAnimate is animating an element it will apply the `ng-animate` CSS class to the element for the duration of the animation.\n * This is a temporary CSS class and it will be removed once the animation is over (for both JavaScript and CSS-based animations).\n *\n * Therefore, animations can be applied to an element using this temporary class directly via CSS.\n *\n * ```css\n * .zipper.ng-animate {\n *   transition:0.5s linear all;\n * }\n * .zipper.ng-enter {\n *   opacity:0;\n * }\n * .zipper.ng-enter.ng-enter-active {\n *   opacity:1;\n * }\n * .zipper.ng-leave {\n *   opacity:1;\n * }\n * .zipper.ng-leave.ng-leave-active {\n *   opacity:0;\n * }\n * ```\n *\n * (Note that the `ng-animate` CSS class is reserved and it cannot be applied on an element directly since ngAnimate will always remove\n * the CSS class once an animation has completed.)\n *\n *\n * ### The `ng-[event]-prepare` class\n *\n * This is a special class that can be used to prevent unwanted flickering / flash of content before\n * the actual animation starts. The class is added as soon as an animation is initialized, but removed\n * before the actual animation starts (after waiting for a $digest).\n * It is also only added for *structural* animations (`enter`, `move`, and `leave`).\n *\n * In practice, flickering can appear when nesting elements with structural animations such as `ngIf`\n * into elements that have class-based animations such as `ngClass`.\n *\n * ```html\n * <div ng-class=\"{red: myProp}\">\n *   <div ng-class=\"{blue: myProp}\">\n *     <div class=\"message\" ng-if=\"myProp\"></div>\n *   </div>\n * </div>\n * ```\n *\n * It is possible that during the `enter` animation, the `.message` div will be briefly visible before it starts animating.\n * In that case, you can add styles to the CSS that make sure the element stays hidden before the animation starts:\n *\n * ```css\n * .message.ng-enter-prepare {\n *   opacity: 0;\n * }\n * ```\n *\n * ### Animating between value changes\n *\n * Sometimes you need to animate between different expression states, whose values\n * don't necessary need to be known or referenced in CSS styles.\n * Unless possible with another {@link ngAnimate#directive-support \"animation aware\" directive},\n * that specific use case can always be covered with {@link ngAnimate.directive:ngAnimateSwap} as\n * can be seen in {@link ngAnimate.directive:ngAnimateSwap#examples this example}.\n *\n * Note that {@link ngAnimate.directive:ngAnimateSwap} is a *structural directive*, which means it\n * creates a new instance of the element (including any other/child directives it may have) and\n * links it to a new scope every time *swap* happens. In some cases this might not be desirable\n * (e.g. for performance reasons, or when you wish to retain internal state on the original\n * element instance).\n *\n * ## JavaScript-based Animations\n *\n * ngAnimate also allows for animations to be consumed by JavaScript code. The approach is similar to CSS-based animations (where there is a shared\n * CSS class that is referenced in our HTML code) but in addition we need to register the JavaScript animation on the module. By making use of the\n * `module.animation()` module function we can register the animation.\n *\n * Let's see an example of a enter/leave animation using `ngRepeat`:\n *\n * ```html\n * <div ng-repeat=\"item in items\" class=\"slide\">\n *   {{ item }}\n * </div>\n * ```\n *\n * See the **slide** CSS class? Let's use that class to define an animation that we'll structure in our module code by using `module.animation`:\n *\n * ```js\n * myModule.animation('.slide', [function() {\n *   return {\n *     // make note that other events (like addClass/removeClass)\n *     // have different function input parameters\n *     enter: function(element, doneFn) {\n *       jQuery(element).fadeIn(1000, doneFn);\n *\n *       // remember to call doneFn so that AngularJS\n *       // knows that the animation has concluded\n *     },\n *\n *     move: function(element, doneFn) {\n *       jQuery(element).fadeIn(1000, doneFn);\n *     },\n *\n *     leave: function(element, doneFn) {\n *       jQuery(element).fadeOut(1000, doneFn);\n *     }\n *   }\n * }]);\n * ```\n *\n * The nice thing about JS-based animations is that we can inject other services and make use of advanced animation libraries such as\n * greensock.js and velocity.js.\n *\n * If our animation code class-based (meaning that something like `ngClass`, `ngHide` and `ngShow` triggers it) then we can still define\n * our animations inside of the same registered animation, however, the function input arguments are a bit different:\n *\n * ```html\n * <div ng-class=\"color\" class=\"colorful\">\n *   this box is moody\n * </div>\n * <button ng-click=\"color='red'\">Change to red</button>\n * <button ng-click=\"color='blue'\">Change to blue</button>\n * <button ng-click=\"color='green'\">Change to green</button>\n * ```\n *\n * ```js\n * myModule.animation('.colorful', [function() {\n *   return {\n *     addClass: function(element, className, doneFn) {\n *       // do some cool animation and call the doneFn\n *     },\n *     removeClass: function(element, className, doneFn) {\n *       // do some cool animation and call the doneFn\n *     },\n *     setClass: function(element, addedClass, removedClass, doneFn) {\n *       // do some cool animation and call the doneFn\n *     }\n *   }\n * }]);\n * ```\n *\n * ## CSS + JS Animations Together\n *\n * AngularJS 1.4 and higher has taken steps to make the amalgamation of CSS and JS animations more flexible. However, unlike earlier versions of AngularJS,\n * defining CSS and JS animations to work off of the same CSS class will not work anymore. Therefore the example below will only result in **JS animations taking\n * charge of the animation**:\n *\n * ```html\n * <div ng-if=\"bool\" class=\"slide\">\n *   Slide in and out\n * </div>\n * ```\n *\n * ```js\n * myModule.animation('.slide', [function() {\n *   return {\n *     enter: function(element, doneFn) {\n *       jQuery(element).slideIn(1000, doneFn);\n *     }\n *   }\n * }]);\n * ```\n *\n * ```css\n * .slide.ng-enter {\n *   transition:0.5s linear all;\n *   transform:translateY(-100px);\n * }\n * .slide.ng-enter.ng-enter-active {\n *   transform:translateY(0);\n * }\n * ```\n *\n * Does this mean that CSS and JS animations cannot be used together? Do JS-based animations always have higher priority? We can make up for the\n * lack of CSS animations by using the `$animateCss` service to trigger our own tweaked-out, CSS-based animations directly from\n * our own JS-based animation code:\n *\n * ```js\n * myModule.animation('.slide', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element) {\n*        // this will trigger `.slide.ng-enter` and `.slide.ng-enter-active`.\n *       return $animateCss(element, {\n *         event: 'enter',\n *         structural: true\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * The nice thing here is that we can save bandwidth by sticking to our CSS-based animation code and we don't need to rely on a 3rd-party animation framework.\n *\n * The `$animateCss` service is very powerful since we can feed in all kinds of extra properties that will be evaluated and fed into a CSS transition or\n * keyframe animation. For example if we wanted to animate the height of an element while adding and removing classes then we can do so by providing that\n * data into `$animateCss` directly:\n *\n * ```js\n * myModule.animation('.slide', ['$animateCss', function($animateCss) {\n *   return {\n *     enter: function(element) {\n *       return $animateCss(element, {\n *         event: 'enter',\n *         structural: true,\n *         addClass: 'maroon-setting',\n *         from: { height:0 },\n *         to: { height: 200 }\n *       });\n *     }\n *   }\n * }]);\n * ```\n *\n * Now we can fill in the rest via our transition CSS code:\n *\n * ```css\n * /&#42; the transition tells ngAnimate to make the animation happen &#42;/\n * .slide.ng-enter { transition:0.5s linear all; }\n *\n * /&#42; this extra CSS class will be absorbed into the transition\n * since the $animateCss code is adding the class &#42;/\n * .maroon-setting { background:red; }\n * ```\n *\n * And `$animateCss` will figure out the rest. Just make sure to have the `done()` callback fire the `doneFn` function to signal when the animation is over.\n *\n * To learn more about what's possible be sure to visit the {@link ngAnimate.$animateCss $animateCss service}.\n *\n * ## Animation Anchoring (via `ng-animate-ref`)\n *\n * ngAnimate in AngularJS 1.4 comes packed with the ability to cross-animate elements between\n * structural areas of an application (like views) by pairing up elements using an attribute\n * called `ng-animate-ref`.\n *\n * Let's say for example we have two views that are managed by `ng-view` and we want to show\n * that there is a relationship between two components situated in within these views. By using the\n * `ng-animate-ref` attribute we can identify that the two components are paired together and we\n * can then attach an animation, which is triggered when the view changes.\n *\n * Say for example we have the following template code:\n *\n * ```html\n * <!-- index.html -->\n * <div ng-view class=\"view-animation\">\n * </div>\n *\n * <!-- home.html -->\n * <a href=\"#/banner-page\">\n *   <img src=\"./banner.jpg\" class=\"banner\" ng-animate-ref=\"banner\">\n * </a>\n *\n * <!-- banner-page.html -->\n * <img src=\"./banner.jpg\" class=\"banner\" ng-animate-ref=\"banner\">\n * ```\n *\n * Now, when the view changes (once the link is clicked), ngAnimate will examine the\n * HTML contents to see if there is a match reference between any components in the view\n * that is leaving and the view that is entering. It will scan both the view which is being\n * removed (leave) and inserted (enter) to see if there are any paired DOM elements that\n * contain a matching ref value.\n *\n * The two images match since they share the same ref value. ngAnimate will now create a\n * transport element (which is a clone of the first image element) and it will then attempt\n * to animate to the position of the second image element in the next view. For the animation to\n * work a special CSS class called `ng-anchor` will be added to the transported element.\n *\n * We can now attach a transition onto the `.banner.ng-anchor` CSS class and then\n * ngAnimate will handle the entire transition for us as well as the addition and removal of\n * any changes of CSS classes between the elements:\n *\n * ```css\n * .banner.ng-anchor {\n *   /&#42; this animation will last for 1 second since there are\n *          two phases to the animation (an `in` and an `out` phase) &#42;/\n *   transition:0.5s linear all;\n * }\n * ```\n *\n * We also **must** include animations for the views that are being entered and removed\n * (otherwise anchoring wouldn't be possible since the new view would be inserted right away).\n *\n * ```css\n * .view-animation.ng-enter, .view-animation.ng-leave {\n *   transition:0.5s linear all;\n *   position:fixed;\n *   left:0;\n *   top:0;\n *   width:100%;\n * }\n * .view-animation.ng-enter {\n *   transform:translateX(100%);\n * }\n * .view-animation.ng-leave,\n * .view-animation.ng-enter.ng-enter-active {\n *   transform:translateX(0%);\n * }\n * .view-animation.ng-leave.ng-leave-active {\n *   transform:translateX(-100%);\n * }\n * ```\n *\n * Now we can jump back to the anchor animation. When the animation happens, there are two stages that occur:\n * an `out` and an `in` stage. The `out` stage happens first and that is when the element is animated away\n * from its origin. Once that animation is over then the `in` stage occurs which animates the\n * element to its destination. The reason why there are two animations is to give enough time\n * for the enter animation on the new element to be ready.\n *\n * The example above sets up a transition for both the in and out phases, but we can also target the out or\n * in phases directly via `ng-anchor-out` and `ng-anchor-in`.\n *\n * ```css\n * .banner.ng-anchor-out {\n *   transition: 0.5s linear all;\n *\n *   /&#42; the scale will be applied during the out animation,\n *          but will be animated away when the in animation runs &#42;/\n *   transform: scale(1.2);\n * }\n *\n * .banner.ng-anchor-in {\n *   transition: 1s linear all;\n * }\n * ```\n *\n *\n *\n *\n * ### Anchoring Demo\n *\n  <example module=\"anchoringExample\"\n           name=\"anchoringExample\"\n           id=\"anchoringExample\"\n           deps=\"angular-animate.js;angular-route.js\"\n           animations=\"true\">\n    <file name=\"index.html\">\n      <a href=\"#!/\">Home</a>\n      <hr />\n      <div class=\"view-container\">\n        <div ng-view class=\"view\"></div>\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('anchoringExample', ['ngAnimate', 'ngRoute'])\n        .config(['$routeProvider', function($routeProvider) {\n          $routeProvider.when('/', {\n            templateUrl: 'home.html',\n            controller: 'HomeController as home'\n          });\n          $routeProvider.when('/profile/:id', {\n            templateUrl: 'profile.html',\n            controller: 'ProfileController as profile'\n          });\n        }])\n        .run(['$rootScope', function($rootScope) {\n          $rootScope.records = [\n            { id: 1, title: 'Miss Beulah Roob' },\n            { id: 2, title: 'Trent Morissette' },\n            { id: 3, title: 'Miss Ava Pouros' },\n            { id: 4, title: 'Rod Pouros' },\n            { id: 5, title: 'Abdul Rice' },\n            { id: 6, title: 'Laurie Rutherford Sr.' },\n            { id: 7, title: 'Nakia McLaughlin' },\n            { id: 8, title: 'Jordon Blanda DVM' },\n            { id: 9, title: 'Rhoda Hand' },\n            { id: 10, title: 'Alexandrea Sauer' }\n          ];\n        }])\n        .controller('HomeController', [function() {\n          //empty\n        }])\n        .controller('ProfileController', ['$rootScope', '$routeParams',\n            function ProfileController($rootScope, $routeParams) {\n          var index = parseInt($routeParams.id, 10);\n          var record = $rootScope.records[index - 1];\n\n          this.title = record.title;\n          this.id = record.id;\n        }]);\n    </file>\n    <file name=\"home.html\">\n      <h2>Welcome to the home page</h1>\n      <p>Please click on an element</p>\n      <a class=\"record\"\n         ng-href=\"#!/profile/{{ record.id }}\"\n         ng-animate-ref=\"{{ record.id }}\"\n         ng-repeat=\"record in records\">\n        {{ record.title }}\n      </a>\n    </file>\n    <file name=\"profile.html\">\n      <div class=\"profile record\" ng-animate-ref=\"{{ profile.id }}\">\n        {{ profile.title }}\n      </div>\n    </file>\n    <file name=\"animations.css\">\n      .record {\n        display:block;\n        font-size:20px;\n      }\n      .profile {\n        background:black;\n        color:white;\n        font-size:100px;\n      }\n      .view-container {\n        position:relative;\n      }\n      .view-container > .view.ng-animate {\n        position:absolute;\n        top:0;\n        left:0;\n        width:100%;\n        min-height:500px;\n      }\n      .view.ng-enter, .view.ng-leave,\n      .record.ng-anchor {\n        transition:0.5s linear all;\n      }\n      .view.ng-enter {\n        transform:translateX(100%);\n      }\n      .view.ng-enter.ng-enter-active, .view.ng-leave {\n        transform:translateX(0%);\n      }\n      .view.ng-leave.ng-leave-active {\n        transform:translateX(-100%);\n      }\n      .record.ng-anchor-out {\n        background:red;\n      }\n    </file>\n  </example>\n *\n * ### How is the element transported?\n *\n * When an anchor animation occurs, ngAnimate will clone the starting element and position it exactly where the starting\n * element is located on screen via absolute positioning. The cloned element will be placed inside of the root element\n * of the application (where ng-app was defined) and all of the CSS classes of the starting element will be applied. The\n * element will then animate into the `out` and `in` animations and will eventually reach the coordinates and match\n * the dimensions of the destination element. During the entire animation a CSS class of `.ng-animate-shim` will be applied\n * to both the starting and destination elements in order to hide them from being visible (the CSS styling for the class\n * is: `visibility:hidden`). Once the anchor reaches its destination then it will be removed and the destination element\n * will become visible since the shim class will be removed.\n *\n * ### How is the morphing handled?\n *\n * CSS Anchoring relies on transitions and keyframes and the internal code is intelligent enough to figure out\n * what CSS classes differ between the starting element and the destination element. These different CSS classes\n * will be added/removed on the anchor element and a transition will be applied (the transition that is provided\n * in the anchor class). Long story short, ngAnimate will figure out what classes to add and remove which will\n * make the transition of the element as smooth and automatic as possible. Be sure to use simple CSS classes that\n * do not rely on DOM nesting structure so that the anchor element appears the same as the starting element (since\n * the cloned element is placed inside of root element which is likely close to the body element).\n *\n * Note that if the root element is on the `<html>` element then the cloned node will be placed inside of body.\n *\n *\n * ## Using $animate in your directive code\n *\n * So far we've explored how to feed in animations into an AngularJS application, but how do we trigger animations within our own directives in our application?\n * By injecting the `$animate` service into our directive code, we can trigger structural and class-based hooks which can then be consumed by animations. Let's\n * imagine we have a greeting box that shows and hides itself when the data changes\n *\n * ```html\n * <greeting-box active=\"onOrOff\">Hi there</greeting-box>\n * ```\n *\n * ```js\n * ngModule.directive('greetingBox', ['$animate', function($animate) {\n *   return function(scope, element, attrs) {\n *     attrs.$observe('active', function(value) {\n *       value ? $animate.addClass(element, 'on') : $animate.removeClass(element, 'on');\n *     });\n *   });\n * }]);\n * ```\n *\n * Now the `on` CSS class is added and removed on the greeting box component. Now if we add a CSS class on top of the greeting box element\n * in our HTML code then we can trigger a CSS or JS animation to happen.\n *\n * ```css\n * /&#42; normally we would create a CSS class to reference on the element &#42;/\n * greeting-box.on { transition:0.5s linear all; background:green; color:white; }\n * ```\n *\n * The `$animate` service contains a variety of other methods like `enter`, `leave`, `animate` and `setClass`. To learn more about what's\n * possible be sure to visit the {@link ng.$animate $animate service API page}.\n *\n *\n * ## Callbacks and Promises\n *\n * When `$animate` is called it returns a promise that can be used to capture when the animation has ended. Therefore if we were to trigger\n * an animation (within our directive code) then we can continue performing directive and scope related activities after the animation has\n * ended by chaining onto the returned promise that animation method returns.\n *\n * ```js\n * // somewhere within the depths of the directive\n * $animate.enter(element, parent).then(function() {\n *   //the animation has completed\n * });\n * ```\n *\n * (Note that earlier versions of AngularJS prior to v1.4 required the promise code to be wrapped using `$scope.$apply(...)`. This is not the case\n * anymore.)\n *\n * In addition to the animation promise, we can also make use of animation-related callbacks within our directives and controller code by registering\n * an event listener using the `$animate` service. Let's say for example that an animation was triggered on our view\n * routing controller to hook into that:\n *\n * ```js\n * ngModule.controller('HomePageController', ['$animate', function($animate) {\n *   $animate.on('enter', ngViewElement, function(element) {\n *     // the animation for this route has completed\n *   }]);\n * }])\n * ```\n *\n * (Note that you will need to trigger a digest within the callback to get AngularJS to notice any scope-related changes.)\n */\n\nvar copy;\nvar extend;\nvar forEach;\nvar isArray;\nvar isDefined;\nvar isElement;\nvar isFunction;\nvar isObject;\nvar isString;\nvar isUndefined;\nvar jqLite;\nvar noop;\n\n/**\n * @ngdoc service\n * @name $animate\n * @kind object\n *\n * @description\n * The ngAnimate `$animate` service documentation is the same for the core `$animate` service.\n *\n * Click here {@link ng.$animate to learn more about animations with `$animate`}.\n */\nangular.module('ngAnimate', [], function initAngularHelpers() {\n  // Access helpers from AngularJS core.\n  // Do it inside a `config` block to ensure `window.angular` is available.\n  noop        = angular.noop;\n  copy        = angular.copy;\n  extend      = angular.extend;\n  jqLite      = angular.element;\n  forEach     = angular.forEach;\n  isArray     = angular.isArray;\n  isString    = angular.isString;\n  isObject    = angular.isObject;\n  isUndefined = angular.isUndefined;\n  isDefined   = angular.isDefined;\n  isFunction  = angular.isFunction;\n  isElement   = angular.isElement;\n})\n  .info({ angularVersion: '1.8.3' })\n  .directive('ngAnimateSwap', ngAnimateSwapDirective)\n\n  .directive('ngAnimateChildren', $$AnimateChildrenDirective)\n  .factory('$$rAFScheduler', $$rAFSchedulerFactory)\n\n  .provider('$$animateQueue', $$AnimateQueueProvider)\n  .provider('$$animateCache', $$AnimateCacheProvider)\n  .provider('$$animation', $$AnimationProvider)\n\n  .provider('$animateCss', $AnimateCssProvider)\n  .provider('$$animateCssDriver', $$AnimateCssDriverProvider)\n\n  .provider('$$animateJs', $$AnimateJsProvider)\n  .provider('$$animateJsDriver', $$AnimateJsDriverProvider);\n\n\n})(window, window.angular);\n\n(function() {\n  'use strict';\n\n  angular.module('toastr', [])\n    .factory('toastr', toastr);\n\n  toastr.$inject = ['$animate', '$injector', '$document', '$rootScope', '$sce', 'toastrConfig', '$q'];\n\n  function toastr($animate, $injector, $document, $rootScope, $sce, toastrConfig, $q) {\n    var container;\n    var index = 0;\n    var toasts = [];\n\n    var previousToastMessage = '';\n    var openToasts = {};\n\n    var containerDefer = $q.defer();\n\n    var toast = {\n      active: active,\n      clear: clear,\n      error: error,\n      info: info,\n      remove: remove,\n      success: success,\n      warning: warning,\n      refreshTimer: refreshTimer\n    };\n\n    return toast;\n\n    /* Public API */\n    function active() {\n      return toasts.length;\n    }\n\n    function clear(toast) {\n      // Bit of a hack, I will remove this soon with a BC\n      if (arguments.length === 1 && !toast) { return; }\n\n      if (toast) {\n        remove(toast.toastId);\n      } else {\n        for (var i = 0; i < toasts.length; i++) {\n          remove(toasts[i].toastId);\n        }\n      }\n    }\n\n    function error(message, title, optionsOverride) {\n      var type = _getOptions().iconClasses.error;\n      return _buildNotification(type, message, title, optionsOverride);\n    }\n\n    function info(message, title, optionsOverride) {\n      var type = _getOptions().iconClasses.info;\n      return _buildNotification(type, message, title, optionsOverride);\n    }\n\n    function success(message, title, optionsOverride) {\n      var type = _getOptions().iconClasses.success;\n      return _buildNotification(type, message, title, optionsOverride);\n    }\n\n    function warning(message, title, optionsOverride) {\n      var type = _getOptions().iconClasses.warning;\n      return _buildNotification(type, message, title, optionsOverride);\n    }\n\n    function refreshTimer(toast, newTime) {\n      if (toast && toast.isOpened && toasts.indexOf(toast) >= 0) {\n          toast.scope.refreshTimer(newTime);\n      }\n    }\n\n    function remove(toastId, wasClicked) {\n      var toast = findToast(toastId);\n\n      if (toast && ! toast.deleting) { // Avoid clicking when fading out\n        toast.deleting = true;\n        toast.isOpened = false;\n        $animate.leave(toast.el).then(function() {\n          if (toast.scope.options.onHidden) {\n            toast.scope.options.onHidden(!!wasClicked, toast);\n          }\n          toast.scope.$destroy();\n          var index = toasts.indexOf(toast);\n          delete openToasts[toast.scope.message];\n          toasts.splice(index, 1);\n          var maxOpened = toastrConfig.maxOpened;\n          if (maxOpened && toasts.length >= maxOpened) {\n            toasts[maxOpened - 1].open.resolve();\n          }\n          if (lastToast()) {\n            container.remove();\n            container = null;\n            containerDefer = $q.defer();\n          }\n        });\n      }\n\n      function findToast(toastId) {\n        for (var i = 0; i < toasts.length; i++) {\n          if (toasts[i].toastId === toastId) {\n            return toasts[i];\n          }\n        }\n      }\n\n      function lastToast() {\n        return !toasts.length;\n      }\n    }\n\n    /* Internal functions */\n    function _buildNotification(type, message, title, optionsOverride) {\n      if (angular.isObject(title)) {\n        optionsOverride = title;\n        title = null;\n      }\n\n      return _notify({\n        iconClass: type,\n        message: message,\n        optionsOverride: optionsOverride,\n        title: title\n      });\n    }\n\n    function _getOptions() {\n      return angular.extend({}, toastrConfig);\n    }\n\n    function _createOrGetContainer(options) {\n      if(container) { return containerDefer.promise; }\n\n      container = angular.element('<div></div>');\n      container.attr('id', options.containerId);\n      container.addClass(options.positionClass);\n      container.css({'pointer-events': 'auto'});\n\n      var target = angular.element(document.querySelector(options.target));\n\n      if ( ! target || ! target.length) {\n        throw 'Target for toasts doesn\\'t exist';\n      }\n\n      $animate.enter(container, target).then(function() {\n        containerDefer.resolve();\n      });\n\n      return containerDefer.promise;\n    }\n\n    function _notify(map) {\n      var options = _getOptions();\n\n      if (shouldExit()) { return; }\n\n      var newToast = createToast();\n\n      toasts.push(newToast);\n\n      if (ifMaxOpenedAndAutoDismiss()) {\n        var oldToasts = toasts.slice(0, (toasts.length - options.maxOpened));\n        for (var i = 0, len = oldToasts.length; i < len; i++) {\n          remove(oldToasts[i].toastId);\n        }\n      }\n\n      if (maxOpenedNotReached()) {\n        newToast.open.resolve();\n      }\n\n      newToast.open.promise.then(function() {\n        _createOrGetContainer(options).then(function() {\n          newToast.isOpened = true;\n          if (options.newestOnTop) {\n            $animate.enter(newToast.el, container).then(function() {\n              newToast.scope.init();\n            });\n          } else {\n            var sibling = container[0].lastChild ? angular.element(container[0].lastChild) : null;\n            $animate.enter(newToast.el, container, sibling).then(function() {\n              newToast.scope.init();\n            });\n          }\n        });\n      });\n\n      return newToast;\n\n      function ifMaxOpenedAndAutoDismiss() {\n        return options.autoDismiss && options.maxOpened && toasts.length > options.maxOpened;\n      }\n\n      function createScope(toast, map, options) {\n        if (options.allowHtml) {\n          toast.scope.allowHtml = true;\n          toast.scope.title = $sce.trustAsHtml(map.title);\n          toast.scope.message = $sce.trustAsHtml(map.message);\n        } else {\n          toast.scope.title = map.title;\n          toast.scope.message = map.message;\n        }\n\n        toast.scope.toastType = toast.iconClass;\n        toast.scope.toastId = toast.toastId;\n        toast.scope.extraData = options.extraData;\n\n        toast.scope.options = {\n          extendedTimeOut: options.extendedTimeOut,\n          messageClass: options.messageClass,\n          onHidden: options.onHidden,\n          onShown: generateEvent('onShown'),\n          onTap: generateEvent('onTap'),\n          progressBar: options.progressBar,\n          tapToDismiss: options.tapToDismiss,\n          timeOut: options.timeOut,\n          titleClass: options.titleClass,\n          toastClass: options.toastClass\n        };\n\n        if (options.closeButton) {\n          toast.scope.options.closeHtml = options.closeHtml;\n        }\n\n        function generateEvent(event) {\n          if (options[event]) {\n            return function() {\n              options[event](toast);\n            };\n          }\n        }\n      }\n\n      function createToast() {\n        var newToast = {\n          toastId: index++,\n          isOpened: false,\n          scope: $rootScope.$new(),\n          open: $q.defer()\n        };\n        newToast.iconClass = map.iconClass;\n        if (map.optionsOverride) {\n          angular.extend(options, cleanOptionsOverride(map.optionsOverride));\n          newToast.iconClass = map.optionsOverride.iconClass || newToast.iconClass;\n        }\n\n        createScope(newToast, map, options);\n\n        newToast.el = createToastEl(newToast.scope);\n\n        return newToast;\n\n        function cleanOptionsOverride(options) {\n          var badOptions = ['containerId', 'iconClasses', 'maxOpened', 'newestOnTop',\n                            'positionClass', 'preventDuplicates', 'preventOpenDuplicates', 'templates'];\n          for (var i = 0, l = badOptions.length; i < l; i++) {\n            delete options[badOptions[i]];\n          }\n\n          return options;\n        }\n      }\n\n      function createToastEl(scope) {\n        var angularDomEl = angular.element('<div toast></div>'),\n          $compile = $injector.get('$compile');\n        return $compile(angularDomEl)(scope);\n      }\n\n      function maxOpenedNotReached() {\n        return options.maxOpened && toasts.length <= options.maxOpened || !options.maxOpened;\n      }\n\n      function shouldExit() {\n        var isDuplicateOfLast = options.preventDuplicates && map.message === previousToastMessage;\n        var isDuplicateOpen = options.preventOpenDuplicates && openToasts[map.message];\n\n        if (isDuplicateOfLast || isDuplicateOpen) {\n          return true;\n        }\n\n        previousToastMessage = map.message;\n        openToasts[map.message] = true;\n\n        return false;\n      }\n    }\n  }\n}());\n\n(function() {\n  'use strict';\n\n  angular.module('toastr')\n    .constant('toastrConfig', {\n      allowHtml: false,\n      autoDismiss: false,\n      closeButton: false,\n      closeHtml: '<button>&times;</button>',\n      containerId: 'toast-container',\n      extendedTimeOut: 1000,\n      iconClasses: {\n        error: 'toast-error',\n        info: 'toast-info',\n        success: 'toast-success',\n        warning: 'toast-warning'\n      },\n      maxOpened: 0,\n      messageClass: 'toast-message',\n      newestOnTop: true,\n      onHidden: null,\n      onShown: null,\n      onTap: null,\n      positionClass: 'toast-top-right',\n      preventDuplicates: false,\n      preventOpenDuplicates: false,\n      progressBar: false,\n      tapToDismiss: true,\n      target: 'body',\n      templates: {\n        toast: 'directives/toast/toast.html',\n        progressbar: 'directives/progressbar/progressbar.html'\n      },\n      timeOut: 5000,\n      titleClass: 'toast-title',\n      toastClass: 'toast'\n    });\n}());\n\n(function() {\n  'use strict';\n\n  angular.module('toastr')\n    .directive('progressBar', progressBar);\n\n  progressBar.$inject = ['toastrConfig'];\n\n  function progressBar(toastrConfig) {\n    return {\n      require: '^toast',\n      templateUrl: function() {\n        return toastrConfig.templates.progressbar;\n      },\n      link: linkFunction\n    };\n\n    function linkFunction(scope, element, attrs, toastCtrl) {\n      var intervalId, currentTimeOut, hideTime;\n\n      toastCtrl.progressBar = scope;\n\n      scope.start = function(duration) {\n        if (intervalId) {\n          clearInterval(intervalId);\n        }\n\n        currentTimeOut = parseFloat(duration);\n        hideTime = new Date().getTime() + currentTimeOut;\n        intervalId = setInterval(updateProgress, 10);\n      };\n\n      scope.stop = function() {\n        if (intervalId) {\n          clearInterval(intervalId);\n        }\n      };\n\n      function updateProgress() {\n        var percentage = ((hideTime - (new Date().getTime())) / currentTimeOut) * 100;\n        element.css('width', percentage + '%');\n      }\n\n      scope.$on('$destroy', function() {\n        // Failsafe stop\n        clearInterval(intervalId);\n      });\n    }\n  }\n}());\n\n(function() {\n  'use strict';\n\n  angular.module('toastr')\n    .controller('ToastController', ToastController);\n\n  function ToastController() {\n    this.progressBar = null;\n\n    this.startProgressBar = function(duration) {\n      if (this.progressBar) {\n        this.progressBar.start(duration);\n      }\n    };\n\n    this.stopProgressBar = function() {\n      if (this.progressBar) {\n        this.progressBar.stop();\n      }\n    };\n  }\n}());\n\n(function() {\n  'use strict';\n\n  angular.module('toastr')\n    .directive('toast', toast);\n\n  toast.$inject = ['$injector', '$interval', 'toastrConfig', 'toastr'];\n\n  function toast($injector, $interval, toastrConfig, toastr) {\n    return {\n      templateUrl: function() {\n        return toastrConfig.templates.toast;\n      },\n      controller: 'ToastController',\n      link: toastLinkFunction\n    };\n\n    function toastLinkFunction(scope, element, attrs, toastCtrl) {\n      var timeout;\n\n      scope.toastClass = scope.options.toastClass;\n      scope.titleClass = scope.options.titleClass;\n      scope.messageClass = scope.options.messageClass;\n      scope.progressBar = scope.options.progressBar;\n\n      if (wantsCloseButton()) {\n        var button = angular.element(scope.options.closeHtml),\n          $compile = $injector.get('$compile');\n        button.addClass('toast-close-button');\n        button.attr('ng-click', 'close(true, $event)');\n        $compile(button)(scope);\n        element.children().prepend(button);\n      }\n\n      scope.init = function() {\n        if (scope.options.timeOut) {\n          timeout = createTimeout(scope.options.timeOut);\n        }\n        if (scope.options.onShown) {\n          scope.options.onShown();\n        }\n      };\n\n      element.on('mouseenter', function() {\n        hideAndStopProgressBar();\n        if (timeout) {\n          $interval.cancel(timeout);\n        }\n      });\n\n      scope.tapToast = function () {\n        if (angular.isFunction(scope.options.onTap)) {\n          scope.options.onTap();\n        }\n        if (scope.options.tapToDismiss) {\n          scope.close(true);\n        }\n      };\n\n      scope.close = function (wasClicked, $event) {\n        if ($event && angular.isFunction($event.stopPropagation)) {\n          $event.stopPropagation();\n        }\n        toastr.remove(scope.toastId, wasClicked);\n      };\n      \n      scope.refreshTimer = function(newTime) {\n        if (timeout) {\n          $interval.cancel(timeout);\n          timeout = createTimeout(newTime || scope.options.timeOut);\n        }\n      };\n\n      element.on('mouseleave', function() {\n        if (scope.options.timeOut === 0 && scope.options.extendedTimeOut === 0) { return; }\n        scope.$apply(function() {\n          scope.progressBar = scope.options.progressBar;\n        });\n        timeout = createTimeout(scope.options.extendedTimeOut);\n      });\n\n      function createTimeout(time) {\n        toastCtrl.startProgressBar(time);\n        return $interval(function() {\n          toastCtrl.stopProgressBar();\n          toastr.remove(scope.toastId);\n        }, time, 1);\n      }\n\n      function hideAndStopProgressBar() {\n        scope.progressBar = false;\n        toastCtrl.stopProgressBar();\n      }\n\n      function wantsCloseButton() {\n        return scope.options.closeHtml;\n      }\n    }\n  }\n}());\n\nangular.module(\"toastr\").run([\"$templateCache\", function($templateCache) {$templateCache.put(\"directives/progressbar/progressbar.html\",\"<div class=\\\"toast-progress\\\"></div>\\n\");\n$templateCache.put(\"directives/toast/toast.html\",\"<div class=\\\"{{toastClass}} {{toastType}}\\\" ng-click=\\\"tapToast()\\\">\\n  <div ng-switch on=\\\"allowHtml\\\">\\n    <div ng-switch-default ng-if=\\\"title\\\" class=\\\"{{titleClass}}\\\" aria-label=\\\"{{title}}\\\">{{title}}</div>\\n    <div ng-switch-default class=\\\"{{messageClass}}\\\" aria-label=\\\"{{message}}\\\">{{message}}</div>\\n    <div ng-switch-when=\\\"true\\\" ng-if=\\\"title\\\" class=\\\"{{titleClass}}\\\" ng-bind-html=\\\"title\\\"></div>\\n    <div ng-switch-when=\\\"true\\\" class=\\\"{{messageClass}}\\\" ng-bind-html=\\\"message\\\"></div>\\n  </div>\\n  <progress-bar ng-if=\\\"progressBar\\\"></progress-bar>\\n</div>\\n\");}]);\n/**\n * @license AngularJS v1.8.3\n * (c) 2010-2020 Google LLC. http://angularjs.org\n * License: MIT\n */\n(function(window, angular) {'use strict';\n\nvar $resourceMinErr = angular.$$minErr('$resource');\n\n// Helper functions and regex to lookup a dotted path on an object\n// stopping at undefined/null.  The path must be composed of ASCII\n// identifiers (just like $parse)\nvar MEMBER_NAME_REGEX = /^(\\.[a-zA-Z_$@][0-9a-zA-Z_$@]*)+$/;\n\nfunction isValidDottedPath(path) {\n  return (path != null && path !== '' && path !== 'hasOwnProperty' &&\n      MEMBER_NAME_REGEX.test('.' + path));\n}\n\nfunction lookupDottedPath(obj, path) {\n  if (!isValidDottedPath(path)) {\n    throw $resourceMinErr('badmember', 'Dotted member path \"@{0}\" is invalid.', path);\n  }\n  var keys = path.split('.');\n  for (var i = 0, ii = keys.length; i < ii && angular.isDefined(obj); i++) {\n    var key = keys[i];\n    obj = (obj !== null) ? obj[key] : undefined;\n  }\n  return obj;\n}\n\n/**\n * Create a shallow copy of an object and clear other fields from the destination\n */\nfunction shallowClearAndCopy(src, dst) {\n  dst = dst || {};\n\n  angular.forEach(dst, function(value, key) {\n    delete dst[key];\n  });\n\n  for (var key in src) {\n    if (src.hasOwnProperty(key) && !(key.charAt(0) === '$' && key.charAt(1) === '$')) {\n      dst[key] = src[key];\n    }\n  }\n\n  return dst;\n}\n\n/**\n * @ngdoc module\n * @name ngResource\n * @description\n *\n * The `ngResource` module provides interaction support with RESTful services\n * via the $resource service.\n *\n * See {@link ngResource.$resourceProvider} and {@link ngResource.$resource} for usage.\n */\n\n/**\n * @ngdoc provider\n * @name $resourceProvider\n *\n * @description\n *\n * Use `$resourceProvider` to change the default behavior of the {@link ngResource.$resource}\n * service.\n *\n * ## Dependencies\n * Requires the {@link ngResource } module to be installed.\n *\n */\n\n/**\n * @ngdoc service\n * @name $resource\n * @requires $http\n * @requires ng.$log\n * @requires $q\n * @requires ng.$timeout\n *\n * @description\n * A factory which creates a resource object that lets you interact with\n * [RESTful](http://en.wikipedia.org/wiki/Representational_State_Transfer) server-side data sources.\n *\n * The returned resource object has action methods which provide high-level behaviors without\n * the need to interact with the low level {@link ng.$http $http} service.\n *\n * Requires the {@link ngResource `ngResource`} module to be installed.\n *\n * By default, trailing slashes will be stripped from the calculated URLs,\n * which can pose problems with server backends that do not expect that\n * behavior.  This can be disabled by configuring the `$resourceProvider` like\n * this:\n *\n * ```js\n     app.config(['$resourceProvider', function($resourceProvider) {\n       // Don't strip trailing slashes from calculated URLs\n       $resourceProvider.defaults.stripTrailingSlashes = false;\n     }]);\n * ```\n *\n * @param {string} url A parameterized URL template with parameters prefixed by `:` as in\n *   `/user/:username`. If you are using a URL with a port number (e.g.\n *   `http://example.com:8080/api`), it will be respected.\n *\n *   If you are using a url with a suffix, just add the suffix, like this:\n *   `$resource('http://example.com/resource.json')` or `$resource('http://example.com/:id.json')`\n *   or even `$resource('http://example.com/resource/:resource_id.:format')`\n *   If the parameter before the suffix is empty, :resource_id in this case, then the `/.` will be\n *   collapsed down to a single `.`.  If you need this sequence to appear and not collapse then you\n *   can escape it with `/\\.`.\n *\n * @param {Object=} paramDefaults Default values for `url` parameters. These can be overridden in\n *   `actions` methods. If a parameter value is a function, it will be called every time\n *   a param value needs to be obtained for a request (unless the param was overridden). The\n *   function will be passed the current data value as an argument.\n *\n *   Each key value in the parameter object is first bound to url template if present and then any\n *   excess keys are appended to the url search query after the `?`.\n *\n *   Given a template `/path/:verb` and parameter `{verb: 'greet', salutation: 'Hello'}` results in\n *   URL `/path/greet?salutation=Hello`.\n *\n *   If the parameter value is prefixed with `@`, then the value for that parameter will be\n *   extracted from the corresponding property on the `data` object (provided when calling actions\n *   with a request body).\n *   For example, if the `defaultParam` object is `{someParam: '@someProp'}` then the value of\n *   `someParam` will be `data.someProp`.\n *   Note that the parameter will be ignored, when calling a \"GET\" action method (i.e. an action\n *   method that does not accept a request body).\n *\n * @param {Object.<Object>=} actions Hash with declaration of custom actions that will be available\n *   in addition to the default set of resource actions (see below). If a custom action has the same\n *   key as a default action (e.g. `save`), then the default action will be *overwritten*, and not\n *   extended.\n *\n *   The declaration should be created in the format of {@link ng.$http#usage $http.config}:\n *\n *       {\n *         action1: {method:?, params:?, isArray:?, headers:?, ...},\n *         action2: {method:?, params:?, isArray:?, headers:?, ...},\n *         ...\n *       }\n *\n *   Where:\n *\n *   - **`action`** – {string} – The name of action. This name becomes the name of the method on\n *     your resource object.\n *   - **`method`** – {string} – Case insensitive HTTP method (e.g. `GET`, `POST`, `PUT`,\n *     `DELETE`, `JSONP`, etc).\n *   - **`params`** – {Object=} – Optional set of pre-bound parameters for this action. If any of\n *     the parameter value is a function, it will be called every time when a param value needs to\n *     be obtained for a request (unless the param was overridden). The function will be passed the\n *     current data value as an argument.\n *   - **`url`** – {string} – Action specific `url` override. The url templating is supported just\n *     like for the resource-level urls.\n *   - **`isArray`** – {boolean=} – If true then the returned object for this action is an array,\n *     see `returns` section.\n *   - **`transformRequest`** –\n *     `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –\n *     Transform function or an array of such functions. The transform function takes the http\n *     request body and headers and returns its transformed (typically serialized) version.\n *     By default, transformRequest will contain one function that checks if the request data is\n *     an object and serializes it using `angular.toJson`. To prevent this behavior, set\n *     `transformRequest` to an empty array: `transformRequest: []`\n *   - **`transformResponse`** –\n *     `{function(data, headersGetter, status)|Array.<function(data, headersGetter, status)>}` –\n *     Transform function or an array of such functions. The transform function takes the HTTP\n *     response body, headers and status and returns its transformed (typically deserialized)\n *     version.\n *     By default, transformResponse will contain one function that checks if the response looks\n *     like a JSON string and deserializes it using `angular.fromJson`. To prevent this behavior,\n *     set `transformResponse` to an empty array: `transformResponse: []`\n *   - **`cache`** – `{boolean|Cache}` – A boolean value or object created with\n *     {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of the HTTP response.\n *     See {@link $http#caching $http Caching} for more information.\n *   - **`timeout`** – `{number}` – Timeout in milliseconds.<br />\n *     **Note:** In contrast to {@link ng.$http#usage $http.config}, {@link ng.$q promises} are\n *     **not** supported in `$resource`, because the same value would be used for multiple requests.\n *     If you are looking for a way to cancel requests, you should use the `cancellable` option.\n *   - **`cancellable`** – `{boolean}` – If true, the request made by a \"non-instance\" call will be\n *     cancelled (if not already completed) by calling `$cancelRequest()` on the call's return\n *     value. Calling `$cancelRequest()` for a non-cancellable or an already completed/cancelled\n *     request will have no effect.\n *   - **`withCredentials`** – `{boolean}` – Whether to set the `withCredentials` flag on the\n *     XHR object. See\n *     [XMLHttpRequest.withCredentials](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/withCredentials)\n *     for more information.\n *   - **`responseType`** – `{string}` – See\n *     [XMLHttpRequest.responseType](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseType).\n *   - **`interceptor`** – `{Object=}` – The interceptor object has four optional methods -\n *     `request`, `requestError`, `response`, and `responseError`. See\n *     {@link ng.$http#interceptors $http interceptors} for details. Note that\n *     `request`/`requestError` interceptors are applied before calling `$http`, thus before any\n *     global `$http` interceptors. Also, rejecting or throwing an error inside the `request`\n *     interceptor will result in calling the `responseError` interceptor.\n *     The resource instance or collection is available on the `resource` property of the\n *     `http response` object passed to `response`/`responseError` interceptors.\n *     Keep in mind that the associated promise will be resolved with the value returned by the\n *     response interceptors. Make sure you return an appropriate value and not the `response`\n *     object passed as input. For reference, the default `response` interceptor (which gets applied\n *     if you don't specify a custom one) returns `response.resource`.<br />\n *     See {@link ngResource.$resource#using-interceptors below} for an example of using\n *     interceptors in `$resource`.\n *   - **`hasBody`** – `{boolean}` – If true, then the request will have a body.\n *     If not specified, then only POST, PUT and PATCH requests will have a body. *\n * @param {Object} options Hash with custom settings that should extend the\n *   default `$resourceProvider` behavior.  The supported options are:\n *\n *   - **`stripTrailingSlashes`** – {boolean} – If true then the trailing\n *   slashes from any calculated URL will be stripped. (Defaults to true.)\n *   - **`cancellable`** – {boolean} – If true, the request made by a \"non-instance\" call will be\n *   cancelled (if not already completed) by calling `$cancelRequest()` on the call's return value.\n *   This can be overwritten per action. (Defaults to false.)\n *\n * @returns {Object} A resource \"class\" object with methods for the default set of resource actions\n *   optionally extended with custom `actions`. The default set contains these actions:\n *   ```js\n *   {\n *     'get':    {method: 'GET'},\n *     'save':   {method: 'POST'},\n *     'query':  {method: 'GET', isArray: true},\n *     'remove': {method: 'DELETE'},\n *     'delete': {method: 'DELETE'}\n *   }\n *   ```\n *\n *   Calling these methods invoke {@link ng.$http} with the specified http method, destination and\n *   parameters. When the data is returned from the server then the object is an instance of the\n *   resource class. The actions `save`, `remove` and `delete` are available on it as methods with\n *   the `$` prefix. This allows you to easily perform CRUD operations (create, read, update,\n *   delete) on server-side data like this:\n *   ```js\n *   var User = $resource('/user/:userId', {userId: '@id'});\n *   User.get({userId: 123}).$promise.then(function(user) {\n *     user.abc = true;\n *     user.$save();\n *   });\n *   ```\n *\n *   It is important to realize that invoking a `$resource` object method immediately returns an\n *   empty reference (object or array depending on `isArray`). Once the data is returned from the\n *   server the existing reference is populated with the actual data. This is a useful trick since\n *   usually the resource is assigned to a model which is then rendered by the view. Having an empty\n *   object results in no rendering, once the data arrives from the server then the object is\n *   populated with the data and the view automatically re-renders itself showing the new data. This\n *   means that in most cases one never has to write a callback function for the action methods.\n *\n *   The action methods on the class object or instance object can be invoked with the following\n *   parameters:\n *\n *   - \"class\" actions without a body: `Resource.action([parameters], [success], [error])`\n *   - \"class\" actions with a body: `Resource.action([parameters], postData, [success], [error])`\n *   - instance actions: `instance.$action([parameters], [success], [error])`\n *\n *\n *   When calling instance methods, the instance itself is used as the request body (if the action\n *   should have a body). By default, only actions using `POST`, `PUT` or `PATCH` have request\n *   bodies, but you can use the `hasBody` configuration option to specify whether an action\n *   should have a body or not (regardless of its HTTP method).\n *\n *\n *   Success callback is called with (value (Object|Array), responseHeaders (Function),\n *   status (number), statusText (string)) arguments, where `value` is the populated resource\n *   instance or collection object. The error callback is called with (httpResponse) argument.\n *\n *   Class actions return an empty instance (with the additional properties listed below).\n *   Instance actions return a promise for the operation.\n *\n *   The Resource instances and collections have these additional properties:\n *\n *   - `$promise`: The {@link ng.$q promise} of the original server interaction that created this\n *     instance or collection.\n *\n *     On success, the promise is resolved with the same resource instance or collection object,\n *     updated with data from server. This makes it easy to use in the\n *     {@link ngRoute.$routeProvider `resolve` section of `$routeProvider.when()`} to defer view\n *     rendering until the resource(s) are loaded.\n *\n *     On failure, the promise is rejected with the {@link ng.$http http response} object.\n *\n *     If an interceptor object was provided, the promise will instead be resolved with the value\n *     returned by the response interceptor (on success) or responceError interceptor (on failure).\n *\n *   - `$resolved`: `true` after first server interaction is completed (either with success or\n *      rejection), `false` before that. Knowing if the Resource has been resolved is useful in\n *      data-binding. If there is a response/responseError interceptor and it returns a promise,\n *      `$resolved` will wait for that too.\n *\n *   The Resource instances and collections have these additional methods:\n *\n *   - `$cancelRequest`: If there is a cancellable, pending request related to the instance or\n *      collection, calling this method will abort the request.\n *\n *   The Resource instances have these additional methods:\n *\n *   - `toJSON`: It returns a simple object without any of the extra properties added as part of\n *     the Resource API. This object can be serialized through {@link angular.toJson} safely\n *     without attaching AngularJS-specific fields. Notice that `JSON.stringify` (and\n *     `angular.toJson`) automatically use this method when serializing a Resource instance\n *     (see [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#toJSON%28%29_behavior)).\n *\n * @example\n *\n * ### Basic usage\n *\n   ```js\n     // Define a CreditCard class\n     var CreditCard = $resource('/users/:userId/cards/:cardId',\n       {userId: 123, cardId: '@id'}, {\n         charge: {method: 'POST', params: {charge: true}}\n       });\n\n     // We can retrieve a collection from the server\n     var cards = CreditCard.query();\n         // GET: /users/123/cards\n         // server returns: [{id: 456, number: '1234', name: 'Smith'}]\n\n     // Wait for the request to complete\n     cards.$promise.then(function() {\n       var card = cards[0];\n\n       // Each item is an instance of CreditCard\n       expect(card instanceof CreditCard).toEqual(true);\n\n       // Non-GET methods are mapped onto the instances\n       card.name = 'J. Smith';\n       card.$save();\n           // POST: /users/123/cards/456 {id: 456, number: '1234', name: 'J. Smith'}\n           // server returns: {id: 456, number: '1234', name: 'J. Smith'}\n\n       // Our custom method is mapped as well (since it uses POST)\n       card.$charge({amount: 9.99});\n           // POST: /users/123/cards/456?amount=9.99&charge=true {id: 456, number: '1234', name: 'J. Smith'}\n     });\n\n     // We can create an instance as well\n     var newCard = new CreditCard({number: '0123'});\n     newCard.name = 'Mike Smith';\n\n     var savePromise = newCard.$save();\n         // POST: /users/123/cards {number: '0123', name: 'Mike Smith'}\n         // server returns: {id: 789, number: '0123', name: 'Mike Smith'}\n\n     savePromise.then(function() {\n       // Once the promise is resolved, the created instance\n       // is populated with the data returned by the server\n       expect(newCard.id).toEqual(789);\n     });\n   ```\n *\n * The object returned from a call to `$resource` is a resource \"class\" which has one \"static\"\n * method for each action in the definition.\n *\n * Calling these methods invokes `$http` on the `url` template with the given HTTP `method`,\n * `params` and `headers`.\n *\n * @example\n *\n * ### Accessing the response\n *\n * When the data is returned from the server then the object is an instance of the resource type and\n * all of the non-GET methods are available with `$` prefix. This allows you to easily support CRUD\n * operations (create, read, update, delete) on server-side data.\n *\n   ```js\n     var User = $resource('/users/:userId', {userId: '@id'});\n     User.get({userId: 123}).$promise.then(function(user) {\n       user.abc = true;\n       user.$save();\n     });\n   ```\n *\n * It's worth noting that the success callback for `get`, `query` and other methods gets called with\n * the resource instance (populated with the data that came from the server) as well as an `$http`\n * header getter function, the HTTP status code and the response status text. So one could rewrite\n * the above example and get access to HTTP headers as follows:\n *\n   ```js\n     var User = $resource('/users/:userId', {userId: '@id'});\n     User.get({userId: 123}, function(user, getResponseHeaders) {\n       user.abc = true;\n       user.$save(function(user, putResponseHeaders) {\n         // `user` => saved `User` object\n         // `putResponseHeaders` => `$http` header getter\n       });\n     });\n   ```\n *\n * @example\n *\n * ### Creating custom actions\n *\n * In this example we create a custom method on our resource to make a PUT request:\n *\n   ```js\n      var app = angular.module('app', ['ngResource']);\n\n      // Some APIs expect a PUT request in the format URL/object/ID\n      // Here we are creating an 'update' method\n      app.factory('Notes', ['$resource', function($resource) {\n        return $resource('/notes/:id', {id: '@id'}, {\n          update: {method: 'PUT'}\n        });\n      }]);\n\n      // In our controller we get the ID from the URL using `$location`\n      app.controller('NotesCtrl', ['$location', 'Notes', function($location, Notes) {\n        // First, retrieve the corresponding `Note` object from the server\n        // (Assuming a URL of the form `.../notes?id=XYZ`)\n        var noteId = $location.search().id;\n        var note = Notes.get({id: noteId});\n\n        note.$promise.then(function() {\n          note.content = 'Hello, world!';\n\n          // Now call `update` to save the changes on the server\n          Notes.update(note);\n              // This will PUT /notes/ID with the note object as the request payload\n\n          // Since `update` is a non-GET method, it will also be available on the instance\n          // (prefixed with `$`), so we could replace the `Note.update()` call with:\n          //note.$update();\n        });\n      }]);\n   ```\n *\n * @example\n *\n * ### Cancelling requests\n *\n * If an action's configuration specifies that it is cancellable, you can cancel the request related\n * to an instance or collection (as long as it is a result of a \"non-instance\" call):\n *\n   ```js\n     // ...defining the `Hotel` resource...\n     var Hotel = $resource('/api/hotels/:id', {id: '@id'}, {\n       // Let's make the `query()` method cancellable\n       query: {method: 'get', isArray: true, cancellable: true}\n     });\n\n     // ...somewhere in the PlanVacationController...\n     ...\n     this.onDestinationChanged = function onDestinationChanged(destination) {\n       // We don't care about any pending request for hotels\n       // in a different destination any more\n       if (this.availableHotels) {\n         this.availableHotels.$cancelRequest();\n       }\n\n       // Let's query for hotels in `destination`\n       // (calls: /api/hotels?location=<destination>)\n       this.availableHotels = Hotel.query({location: destination});\n     };\n   ```\n *\n * @example\n *\n * ### Using interceptors\n *\n * You can use interceptors to transform the request or response, perform additional operations, and\n * modify the returned instance/collection. The following example, uses `request` and `response`\n * interceptors to augment the returned instance with additional info:\n *\n   ```js\n     var Thing = $resource('/api/things/:id', {id: '@id'}, {\n       save: {\n         method: 'POST',\n         interceptor: {\n           request: function(config) {\n             // Before the request is sent out, store a timestamp on the request config\n             config.requestTimestamp = Date.now();\n             return config;\n           },\n           response: function(response) {\n             // Get the instance from the response object\n             var instance = response.resource;\n\n             // Augment the instance with a custom `saveLatency` property, computed as the time\n             // between sending the request and receiving the response.\n             instance.saveLatency = Date.now() - response.config.requestTimestamp;\n\n             // Return the instance\n             return instance;\n           }\n         }\n       }\n     });\n\n     Thing.save({foo: 'bar'}).$promise.then(function(thing) {\n       console.log('That thing was saved in ' + thing.saveLatency + 'ms.');\n     });\n   ```\n *\n */\nangular.module('ngResource', ['ng']).\n  info({ angularVersion: '1.8.3' }).\n  provider('$resource', function ResourceProvider() {\n    var PROTOCOL_AND_IPV6_REGEX = /^https?:\\/\\/\\[[^\\]]*][^/]*/;\n\n    var provider = this;\n\n    /**\n     * @ngdoc property\n     * @name $resourceProvider#defaults\n     * @description\n     * Object containing default options used when creating `$resource` instances.\n     *\n     * The default values satisfy a wide range of usecases, but you may choose to overwrite any of\n     * them to further customize your instances. The available properties are:\n     *\n     * - **stripTrailingSlashes** – `{boolean}` – If true, then the trailing slashes from any\n     *   calculated URL will be stripped.<br />\n     *   (Defaults to true.)\n     * - **cancellable** – `{boolean}` – If true, the request made by a \"non-instance\" call will be\n     *   cancelled (if not already completed) by calling `$cancelRequest()` on the call's return\n     *   value. For more details, see {@link ngResource.$resource}. This can be overwritten per\n     *   resource class or action.<br />\n     *   (Defaults to false.)\n     * - **actions** - `{Object.<Object>}` - A hash with default actions declarations. Actions are\n     *   high-level methods corresponding to RESTful actions/methods on resources. An action may\n     *   specify what HTTP method to use, what URL to hit, if the return value will be a single\n     *   object or a collection (array) of objects etc. For more details, see\n     *   {@link ngResource.$resource}. The actions can also be enhanced or overwritten per resource\n     *   class.<br />\n     *   The default actions are:\n     *   ```js\n     *   {\n     *     get: {method: 'GET'},\n     *     save: {method: 'POST'},\n     *     query: {method: 'GET', isArray: true},\n     *     remove: {method: 'DELETE'},\n     *     delete: {method: 'DELETE'}\n     *   }\n     *   ```\n     *\n     * #### Example\n     *\n     * For example, you can specify a new `update` action that uses the `PUT` HTTP verb:\n     *\n     * ```js\n     *   angular.\n     *     module('myApp').\n     *     config(['$resourceProvider', function ($resourceProvider) {\n     *       $resourceProvider.defaults.actions.update = {\n     *         method: 'PUT'\n     *       };\n     *     }]);\n     * ```\n     *\n     * Or you can even overwrite the whole `actions` list and specify your own:\n     *\n     * ```js\n     *   angular.\n     *     module('myApp').\n     *     config(['$resourceProvider', function ($resourceProvider) {\n     *       $resourceProvider.defaults.actions = {\n     *         create: {method: 'POST'},\n     *         get:    {method: 'GET'},\n     *         getAll: {method: 'GET', isArray:true},\n     *         update: {method: 'PUT'},\n     *         delete: {method: 'DELETE'}\n     *       };\n     *     });\n     * ```\n     *\n     */\n    this.defaults = {\n      // Strip slashes by default\n      stripTrailingSlashes: true,\n\n      // Make non-instance requests cancellable (via `$cancelRequest()`)\n      cancellable: false,\n\n      // Default actions configuration\n      actions: {\n        'get': {method: 'GET'},\n        'save': {method: 'POST'},\n        'query': {method: 'GET', isArray: true},\n        'remove': {method: 'DELETE'},\n        'delete': {method: 'DELETE'}\n      }\n    };\n\n    this.$get = ['$http', '$log', '$q', '$timeout', function($http, $log, $q, $timeout) {\n\n      var noop = angular.noop,\n          forEach = angular.forEach,\n          extend = angular.extend,\n          copy = angular.copy,\n          isArray = angular.isArray,\n          isDefined = angular.isDefined,\n          isFunction = angular.isFunction,\n          isNumber = angular.isNumber,\n          encodeUriQuery = angular.$$encodeUriQuery,\n          encodeUriSegment = angular.$$encodeUriSegment;\n\n      function Route(template, defaults) {\n        this.template = template;\n        this.defaults = extend({}, provider.defaults, defaults);\n        this.urlParams = {};\n      }\n\n      Route.prototype = {\n        setUrlParams: function(config, params, actionUrl) {\n          var self = this,\n            url = actionUrl || self.template,\n            val,\n            encodedVal,\n            protocolAndIpv6 = '';\n\n          var urlParams = self.urlParams = Object.create(null);\n          forEach(url.split(/\\W/), function(param) {\n            if (param === 'hasOwnProperty') {\n              throw $resourceMinErr('badname', 'hasOwnProperty is not a valid parameter name.');\n            }\n            if (!(new RegExp('^\\\\d+$').test(param)) && param &&\n              (new RegExp('(^|[^\\\\\\\\]):' + param + '(\\\\W|$)').test(url))) {\n              urlParams[param] = {\n                isQueryParamValue: (new RegExp('\\\\?.*=:' + param + '(?:\\\\W|$)')).test(url)\n              };\n            }\n          });\n          url = url.replace(/\\\\:/g, ':');\n          url = url.replace(PROTOCOL_AND_IPV6_REGEX, function(match) {\n            protocolAndIpv6 = match;\n            return '';\n          });\n\n          params = params || {};\n          forEach(self.urlParams, function(paramInfo, urlParam) {\n            val = params.hasOwnProperty(urlParam) ? params[urlParam] : self.defaults[urlParam];\n            if (isDefined(val) && val !== null) {\n              if (paramInfo.isQueryParamValue) {\n                encodedVal = encodeUriQuery(val, true);\n              } else {\n                encodedVal = encodeUriSegment(val);\n              }\n              url = url.replace(new RegExp(':' + urlParam + '(\\\\W|$)', 'g'), function(match, p1) {\n                return encodedVal + p1;\n              });\n            } else {\n              url = url.replace(new RegExp('(/?):' + urlParam + '(\\\\W|$)', 'g'), function(match,\n                  leadingSlashes, tail) {\n                if (tail.charAt(0) === '/') {\n                  return tail;\n                } else {\n                  return leadingSlashes + tail;\n                }\n              });\n            }\n          });\n\n          // strip trailing slashes and set the url (unless this behavior is specifically disabled)\n          if (self.defaults.stripTrailingSlashes) {\n            url = url.replace(/\\/+$/, '') || '/';\n          }\n\n          // Collapse `/.` if found in the last URL path segment before the query.\n          // E.g. `http://url.com/id/.format?q=x` becomes `http://url.com/id.format?q=x`.\n          url = url.replace(/\\/\\.(?=\\w+($|\\?))/, '.');\n          // Replace escaped `/\\.` with `/.`.\n          // (If `\\.` comes from a param value, it will be encoded as `%5C.`.)\n          config.url = protocolAndIpv6 + url.replace(/\\/(\\\\|%5C)\\./, '/.');\n\n\n          // set params - delegate param encoding to $http\n          forEach(params, function(value, key) {\n            if (!self.urlParams[key]) {\n              config.params = config.params || {};\n              config.params[key] = value;\n            }\n          });\n        }\n      };\n\n\n      function resourceFactory(url, paramDefaults, actions, options) {\n        var route = new Route(url, options);\n\n        actions = extend({}, provider.defaults.actions, actions);\n\n        function extractParams(data, actionParams) {\n          var ids = {};\n          actionParams = extend({}, paramDefaults, actionParams);\n          forEach(actionParams, function(value, key) {\n            if (isFunction(value)) { value = value(data); }\n            ids[key] = value && value.charAt && value.charAt(0) === '@' ?\n              lookupDottedPath(data, value.substr(1)) : value;\n          });\n          return ids;\n        }\n\n        function defaultResponseInterceptor(response) {\n          return response.resource;\n        }\n\n        function Resource(value) {\n          shallowClearAndCopy(value || {}, this);\n        }\n\n        Resource.prototype.toJSON = function() {\n          var data = extend({}, this);\n          delete data.$promise;\n          delete data.$resolved;\n          delete data.$cancelRequest;\n          return data;\n        };\n\n        forEach(actions, function(action, name) {\n          var hasBody = action.hasBody === true || (action.hasBody !== false && /^(POST|PUT|PATCH)$/i.test(action.method));\n          var numericTimeout = action.timeout;\n          var cancellable = isDefined(action.cancellable) ?\n              action.cancellable : route.defaults.cancellable;\n\n          if (numericTimeout && !isNumber(numericTimeout)) {\n            $log.debug('ngResource:\\n' +\n                       '  Only numeric values are allowed as `timeout`.\\n' +\n                       '  Promises are not supported in $resource, because the same value would ' +\n                       'be used for multiple requests. If you are looking for a way to cancel ' +\n                       'requests, you should use the `cancellable` option.');\n            delete action.timeout;\n            numericTimeout = null;\n          }\n\n          Resource[name] = function(a1, a2, a3, a4) {\n            var params = {}, data, onSuccess, onError;\n\n            switch (arguments.length) {\n              case 4:\n                onError = a4;\n                onSuccess = a3;\n                // falls through\n              case 3:\n              case 2:\n                if (isFunction(a2)) {\n                  if (isFunction(a1)) {\n                    onSuccess = a1;\n                    onError = a2;\n                    break;\n                  }\n\n                  onSuccess = a2;\n                  onError = a3;\n                  // falls through\n                } else {\n                  params = a1;\n                  data = a2;\n                  onSuccess = a3;\n                  break;\n                }\n                // falls through\n              case 1:\n                if (isFunction(a1)) onSuccess = a1;\n                else if (hasBody) data = a1;\n                else params = a1;\n                break;\n              case 0: break;\n              default:\n                throw $resourceMinErr('badargs',\n                  'Expected up to 4 arguments [params, data, success, error], got {0} arguments',\n                  arguments.length);\n            }\n\n            var isInstanceCall = this instanceof Resource;\n            var value = isInstanceCall ? data : (action.isArray ? [] : new Resource(data));\n            var httpConfig = {};\n            var requestInterceptor = action.interceptor && action.interceptor.request || undefined;\n            var requestErrorInterceptor = action.interceptor && action.interceptor.requestError ||\n              undefined;\n            var responseInterceptor = action.interceptor && action.interceptor.response ||\n              defaultResponseInterceptor;\n            var responseErrorInterceptor = action.interceptor && action.interceptor.responseError ||\n              $q.reject;\n            var successCallback = onSuccess ? function(val) {\n              onSuccess(val, response.headers, response.status, response.statusText);\n            } : undefined;\n            var errorCallback = onError || undefined;\n            var timeoutDeferred;\n            var numericTimeoutPromise;\n            var response;\n\n            forEach(action, function(value, key) {\n              switch (key) {\n                default:\n                  httpConfig[key] = copy(value);\n                  break;\n                case 'params':\n                case 'isArray':\n                case 'interceptor':\n                case 'cancellable':\n                  break;\n              }\n            });\n\n            if (!isInstanceCall && cancellable) {\n              timeoutDeferred = $q.defer();\n              httpConfig.timeout = timeoutDeferred.promise;\n\n              if (numericTimeout) {\n                numericTimeoutPromise = $timeout(timeoutDeferred.resolve, numericTimeout);\n              }\n            }\n\n            if (hasBody) httpConfig.data = data;\n            route.setUrlParams(httpConfig,\n              extend({}, extractParams(data, action.params || {}), params),\n              action.url);\n\n            // Start the promise chain\n            var promise = $q.\n              resolve(httpConfig).\n              then(requestInterceptor).\n              catch(requestErrorInterceptor).\n              then($http);\n\n            promise = promise.then(function(resp) {\n              var data = resp.data;\n\n              if (data) {\n                // Need to convert action.isArray to boolean in case it is undefined\n                if (isArray(data) !== (!!action.isArray)) {\n                  throw $resourceMinErr('badcfg',\n                      'Error in resource configuration for action `{0}`. Expected response to ' +\n                      'contain an {1} but got an {2} (Request: {3} {4})', name, action.isArray ? 'array' : 'object',\n                    isArray(data) ? 'array' : 'object', httpConfig.method, httpConfig.url);\n                }\n                if (action.isArray) {\n                  value.length = 0;\n                  forEach(data, function(item) {\n                    if (typeof item === 'object') {\n                      value.push(new Resource(item));\n                    } else {\n                      // Valid JSON values may be string literals, and these should not be converted\n                      // into objects. These items will not have access to the Resource prototype\n                      // methods, but unfortunately there\n                      value.push(item);\n                    }\n                  });\n                } else {\n                  var promise = value.$promise;     // Save the promise\n                  shallowClearAndCopy(data, value);\n                  value.$promise = promise;         // Restore the promise\n                }\n              }\n\n              resp.resource = value;\n              response = resp;\n              return responseInterceptor(resp);\n            }, function(rejectionOrResponse) {\n              rejectionOrResponse.resource = value;\n              response = rejectionOrResponse;\n              return responseErrorInterceptor(rejectionOrResponse);\n            });\n\n            promise = promise['finally'](function() {\n              value.$resolved = true;\n              if (!isInstanceCall && cancellable) {\n                value.$cancelRequest = noop;\n                $timeout.cancel(numericTimeoutPromise);\n                timeoutDeferred = numericTimeoutPromise = httpConfig.timeout = null;\n              }\n            });\n\n            // Run the `success`/`error` callbacks, but do not let them affect the returned promise.\n            promise.then(successCallback, errorCallback);\n\n            if (!isInstanceCall) {\n              // we are creating instance / collection\n              // - set the initial promise\n              // - return the instance / collection\n              value.$promise = promise;\n              value.$resolved = false;\n              if (cancellable) value.$cancelRequest = cancelRequest;\n\n              return value;\n            }\n\n            // instance call\n            return promise;\n\n            function cancelRequest(value) {\n              promise.catch(noop);\n              if (timeoutDeferred !== null) {\n                timeoutDeferred.resolve(value);\n              }\n            }\n          };\n\n\n          Resource.prototype['$' + name] = function(params, success, error) {\n            if (isFunction(params)) {\n              error = success; success = params; params = {};\n            }\n            var result = Resource[name].call(this, params, this, success, error);\n            return result.$promise || result;\n          };\n        });\n\n        return Resource;\n      }\n\n      return resourceFactory;\n    }];\n  });\n\n\n})(window, window.angular);\n\n/*!\n * angular-translate - v2.19.1 - 2024-01-21\n * \n * Copyright (c) 2024 The angular-translate team, Pascal Precht; Licensed MIT\n */\n(function (root, factory) {\n  if (typeof define === 'function' && define.amd) {\n    // AMD. Register as an anonymous module unless amdModuleId is set\n    define([], function () {\n      return (factory());\n    });\n  } else if (typeof module === 'object' && module.exports) {\n    // Node. Does not work with strict CommonJS, but\n    // only CommonJS-like environments that support module.exports,\n    // like Node.\n    module.exports = factory();\n  } else {\n    factory();\n  }\n}(this, function () {\n\n/**\n * @ngdoc overview\n * @name pascalprecht.translate\n *\n * @description\n * The main module which holds everything together.\n */\nrunTranslate.$inject = ['$translate'];\n$translate.$inject = ['$STORAGE_KEY', '$windowProvider', '$translateSanitizationProvider', 'pascalprechtTranslateOverrider'];\n$translateDefaultInterpolation.$inject = ['$interpolate', '$translateSanitization'];\ntranslateDirective.$inject = ['$translate', '$interpolate', '$compile', '$parse', '$rootScope'];\ntranslateAttrDirective.$inject = ['$translate', '$rootScope'];\ntranslateCloakDirective.$inject = ['$translate', '$rootScope'];\ntranslateFilterFactory.$inject = ['$parse', '$translate'];\n$translationCache.$inject = ['$cacheFactory'];\nangular.module('pascalprecht.translate', ['ng'])\n  .run(runTranslate);\n\nfunction runTranslate($translate) {\n\n  'use strict';\n\n  var key = $translate.storageKey(),\n    storage = $translate.storage();\n\n  var fallbackFromIncorrectStorageValue = function () {\n    var preferred = $translate.preferredLanguage();\n    if (angular.isString(preferred)) {\n      $translate.use(preferred);\n      // $translate.use() will also remember the language.\n      // So, we don't need to call storage.put() here.\n    } else {\n      storage.put(key, $translate.use());\n    }\n  };\n\n  fallbackFromIncorrectStorageValue.displayName = 'fallbackFromIncorrectStorageValue';\n\n  if (storage) {\n    if (!storage.get(key)) {\n      fallbackFromIncorrectStorageValue();\n    } else {\n      $translate.use(storage.get(key))['catch'](fallbackFromIncorrectStorageValue);\n    }\n  } else if (angular.isString($translate.preferredLanguage())) {\n    $translate.use($translate.preferredLanguage());\n  }\n}\n\nrunTranslate.displayName = 'runTranslate';\n\n/**\n * @ngdoc object\n * @name pascalprecht.translate.$translateSanitizationProvider\n *\n * @description\n *\n * Configurations for $translateSanitization\n */\nangular.module('pascalprecht.translate').provider('$translateSanitization', $translateSanitizationProvider);\n\nfunction $translateSanitizationProvider () {\n\n  'use strict';\n\n  var $sanitize,\n      $sce,\n      currentStrategy = null, // TODO change to either 'sanitize', 'escape' or ['sanitize', 'escapeParameters'] in 3.0.\n      hasConfiguredStrategy = false,\n      hasShownNoStrategyConfiguredWarning = false,\n      strategies;\n\n  /**\n   * Definition of a sanitization strategy function\n   * @callback StrategyFunction\n   * @param {string|object} value - value to be sanitized (either a string or an interpolated value map)\n   * @param {string} mode - either 'text' for a string (translation) or 'params' for the interpolated params\n   * @return {string|object}\n   */\n\n  /**\n   * @ngdoc property\n   * @name strategies\n   * @propertyOf pascalprecht.translate.$translateSanitizationProvider\n   *\n   * @description\n   * Following strategies are built-in:\n   * <dl>\n   *   <dt>sanitize</dt>\n   *   <dd>Sanitizes HTML in the translation text using $sanitize</dd>\n   *   <dt>escape</dt>\n   *   <dd>Escapes HTML in the translation</dd>\n   *   <dt>sanitizeParameters</dt>\n   *   <dd>Sanitizes HTML in the values of the interpolation parameters using $sanitize</dd>\n   *   <dt>escapeParameters</dt>\n   *   <dd>Escapes HTML in the values of the interpolation parameters</dd>\n   *   <dt>escaped</dt>\n   *   <dd>Support legacy strategy name 'escaped' for backwards compatibility (will be removed in 3.0)</dd>\n   * </dl>\n   *\n   */\n\n  strategies = {\n    sanitize: function (value, mode/*, context*/) {\n      if (mode === 'text') {\n        value = htmlSanitizeValue(value);\n      }\n      return value;\n    },\n    escape: function (value, mode/*, context*/) {\n      if (mode === 'text') {\n        value = htmlEscapeValue(value);\n      }\n      return value;\n    },\n    sanitizeParameters: function (value, mode/*, context*/) {\n      if (mode === 'params') {\n        value = mapInterpolationParameters(value, htmlSanitizeValue);\n      }\n      return value;\n    },\n    escapeParameters: function (value, mode/*, context*/) {\n      if (mode === 'params') {\n        value = mapInterpolationParameters(value, htmlEscapeValue);\n      }\n      return value;\n    },\n    sce: function (value, mode, context) {\n      if (mode === 'text') {\n        value = htmlTrustValue(value);\n      } else if (mode === 'params') {\n        if (context !== 'filter') {\n          // do html escape in filter context #1101\n          value = mapInterpolationParameters(value, htmlEscapeValue);\n        }\n      }\n      return value;\n    },\n    sceParameters: function (value, mode/*, context*/) {\n      if (mode === 'params') {\n        value = mapInterpolationParameters(value, htmlTrustValue);\n      }\n      return value;\n    }\n  };\n  // Support legacy strategy name 'escaped' for backwards compatibility.\n  // TODO should be removed in 3.0\n  strategies.escaped = strategies.escapeParameters;\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateSanitizationProvider#addStrategy\n   * @methodOf pascalprecht.translate.$translateSanitizationProvider\n   *\n   * @description\n   * Adds a sanitization strategy to the list of known strategies.\n   *\n   * @param {string} strategyName - unique key for a strategy\n   * @param {StrategyFunction} strategyFunction - strategy function\n   * @returns {object} this\n   */\n  this.addStrategy = function (strategyName, strategyFunction) {\n    strategies[strategyName] = strategyFunction;\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateSanitizationProvider#removeStrategy\n   * @methodOf pascalprecht.translate.$translateSanitizationProvider\n   *\n   * @description\n   * Removes a sanitization strategy from the list of known strategies.\n   *\n   * @param {string} strategyName - unique key for a strategy\n   * @returns {object} this\n   */\n  this.removeStrategy = function (strategyName) {\n    delete strategies[strategyName];\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateSanitizationProvider#useStrategy\n   * @methodOf pascalprecht.translate.$translateSanitizationProvider\n   *\n   * @description\n   * Selects a sanitization strategy. When an array is provided the strategies will be executed in order.\n   *\n   * @param {string|StrategyFunction|array} strategy The sanitization strategy / strategies which should be used. Either a name of an existing strategy, a custom strategy function, or an array consisting of multiple names and / or custom functions.\n   * @returns {object} this\n   */\n  this.useStrategy = function (strategy) {\n    hasConfiguredStrategy = true;\n    currentStrategy = strategy;\n    return this;\n  };\n\n  /**\n   * @ngdoc object\n   * @name pascalprecht.translate.$translateSanitization\n   * @requires $injector\n   * @requires $log\n   *\n   * @description\n   * Sanitizes interpolation parameters and translated texts.\n   *\n   */\n  this.$get = ['$injector', '$log', function ($injector, $log) {\n\n    var cachedStrategyMap = {};\n\n    var applyStrategies = function (value, mode, context, selectedStrategies) {\n      angular.forEach(selectedStrategies, function (selectedStrategy) {\n        if (angular.isFunction(selectedStrategy)) {\n          value = selectedStrategy(value, mode, context);\n        } else if (angular.isFunction(strategies[selectedStrategy])) {\n          value = strategies[selectedStrategy](value, mode, context);\n        } else if (angular.isString(strategies[selectedStrategy])) {\n          if (!cachedStrategyMap[strategies[selectedStrategy]]) {\n            try {\n              cachedStrategyMap[strategies[selectedStrategy]] = $injector.get(strategies[selectedStrategy]);\n            } catch (e) {\n              cachedStrategyMap[strategies[selectedStrategy]] = function() {};\n              throw new Error('pascalprecht.translate.$translateSanitization: Unknown sanitization strategy: \\'' + selectedStrategy + '\\'');\n            }\n          }\n          value = cachedStrategyMap[strategies[selectedStrategy]](value, mode, context);\n        } else {\n          throw new Error('pascalprecht.translate.$translateSanitization: Unknown sanitization strategy: \\'' + selectedStrategy + '\\'');\n        }\n      });\n      return value;\n    };\n\n    // TODO: should be removed in 3.0\n    var showNoStrategyConfiguredWarning = function () {\n      if (!hasConfiguredStrategy && !hasShownNoStrategyConfiguredWarning) {\n        $log.warn('pascalprecht.translate.$translateSanitization: No sanitization strategy has been configured. This can have serious security implications. See http://angular-translate.github.io/docs/#/guide/19_security for details.');\n        hasShownNoStrategyConfiguredWarning = true;\n      }\n    };\n\n    if ($injector.has('$sanitize')) {\n      $sanitize = $injector.get('$sanitize');\n    }\n    if ($injector.has('$sce')) {\n      $sce = $injector.get('$sce');\n    }\n\n    return {\n      /**\n       * @ngdoc function\n       * @name pascalprecht.translate.$translateSanitization#useStrategy\n       * @methodOf pascalprecht.translate.$translateSanitization\n       *\n       * @description\n       * Selects a sanitization strategy. When an array is provided the strategies will be executed in order.\n       *\n       * @param {string|StrategyFunction|array} strategy The sanitization strategy / strategies which should be used. Either a name of an existing strategy, a custom strategy function, or an array consisting of multiple names and / or custom functions.\n       */\n      useStrategy: (function (self) {\n        return function (strategy) {\n          self.useStrategy(strategy);\n        };\n      })(this),\n\n      /**\n       * @ngdoc function\n       * @name pascalprecht.translate.$translateSanitization#sanitize\n       * @methodOf pascalprecht.translate.$translateSanitization\n       *\n       * @description\n       * Sanitizes a value.\n       *\n       * @param {string|object} value The value which should be sanitized.\n       * @param {string} mode The current sanitization mode, either 'params' or 'text'.\n       * @param {string|StrategyFunction|array} [strategy] Optional custom strategy which should be used instead of the currently selected strategy.\n       * @param {string} [context] The context of this call: filter, service. Default is service\n       * @returns {string|object} sanitized value\n       */\n      sanitize: function (value, mode, strategy, context) {\n        if (!currentStrategy) {\n          showNoStrategyConfiguredWarning();\n        }\n\n        if (!strategy && strategy !== null) {\n          strategy = currentStrategy;\n        }\n\n        if (!strategy) {\n          return value;\n        }\n\n        if (!context) {\n          context = 'service';\n        }\n\n        var selectedStrategies = angular.isArray(strategy) ? strategy : [strategy];\n        return applyStrategies(value, mode, context, selectedStrategies);\n      }\n    };\n  }];\n\n  var htmlEscapeValue = function (value) {\n    var element = angular.element('<div></div>');\n    element.text(value); // not chainable, see #1044\n    return element.html();\n  };\n\n  var htmlSanitizeValue = function (value) {\n    if (!$sanitize) {\n      throw new Error('pascalprecht.translate.$translateSanitization: Error cannot find $sanitize service. Either include the ngSanitize module (https://docs.angularjs.org/api/ngSanitize) or use a sanitization strategy which does not depend on $sanitize, such as \\'escape\\'.');\n    }\n    return $sanitize(value);\n  };\n\n  var htmlTrustValue = function (value) {\n    if (!$sce) {\n      throw new Error('pascalprecht.translate.$translateSanitization: Error cannot find $sce service.');\n    }\n    return $sce.trustAsHtml(value);\n  };\n\n  var mapInterpolationParameters = function (value, iteratee, stack) {\n    if (angular.isDate(value)) {\n      return value;\n    } else if (angular.isObject(value)) {\n      var result = angular.isArray(value) ? [] : {};\n\n      if (!stack) {\n        stack = [];\n      } else {\n        if (stack.indexOf(value) > -1) {\n          throw new Error('pascalprecht.translate.$translateSanitization: Error cannot interpolate parameter due recursive object');\n        }\n      }\n\n      stack.push(value);\n      angular.forEach(value, function (propertyValue, propertyKey) {\n\n        /* Skipping function properties. */\n        if (angular.isFunction(propertyValue)) {\n          return;\n        }\n\n        result[propertyKey] = mapInterpolationParameters(propertyValue, iteratee, stack);\n      });\n      stack.splice(-1, 1); // remove last\n\n      return result;\n    } else if (angular.isNumber(value)) {\n      return value;\n    } else if (value === true || value === false) {\n      return value;\n    } else if (!angular.isUndefined(value) && value !== null) {\n      return iteratee(value);\n    } else {\n      return value;\n    }\n  };\n}\n\n/**\n * @ngdoc object\n * @name pascalprecht.translate.$translateProvider\n * @description\n *\n * $translateProvider allows developers to register translation-tables, asynchronous loaders\n * and similar to configure translation behavior directly inside of a module.\n *\n */\nangular.module('pascalprecht.translate')\n  .constant('pascalprechtTranslateOverrider', {})\n  .provider('$translate', $translate);\n\nfunction $translate($STORAGE_KEY, $windowProvider, $translateSanitizationProvider, pascalprechtTranslateOverrider) {\n\n  'use strict';\n\n  var $translationTable = {},\n    $preferredLanguage,\n    $availableLanguageKeys = [],\n    $languageKeyAliases,\n    $fallbackLanguage,\n    $fallbackWasString,\n    $uses,\n    $nextLang,\n    $storageFactory,\n    $storageKey = $STORAGE_KEY,\n    $storagePrefix,\n    $missingTranslationHandlerFactory,\n    $interpolationFactory,\n    $interpolatorFactories = [],\n    $loaderFactory,\n    $cloakClassName = 'translate-cloak',\n    $loaderOptions,\n    $notFoundIndicatorLeft,\n    $notFoundIndicatorRight,\n    $postCompilingEnabled = false,\n    $forceAsyncReloadEnabled = false,\n    $allowNamespaces = true,\n    $nestedObjectDelimeter = '.',\n    $isReady = false,\n    $keepContent = false,\n    loaderCache,\n    directivePriority = 0,\n    statefulFilter = true,\n    postProcessFn,\n    uniformLanguageTagResolver = 'default',\n    languageTagResolver = {\n      'default' : function (tag) {\n        return (tag || '').split('-').join('_');\n      },\n      java : function (tag) {\n        var temp = (tag || '').split('-').join('_');\n        var parts = temp.split('_');\n        return parts.length > 1 ? (parts[0].toLowerCase() + '_' + parts[1].toUpperCase()) : temp;\n      },\n      bcp47 : function (tag) {\n        var temp = (tag || '').split('_').join('-');\n        var parts = temp.split('-');\n\n        switch (parts.length) {\n          case 1: // language only\n            parts[0] = parts[0].toLowerCase();\n            break;\n          case 2: // language-script or language-region\n            parts[0] = parts[0].toLowerCase();\n            if (parts[1].length === 4) { // parts[1] is script\n              parts[1] = parts[1].charAt(0).toUpperCase() + parts[1].slice(1).toLowerCase();\n            } else { // parts[1] is region\n              parts[1] = parts[1].toUpperCase();\n            }\n            break;\n          case 3: // language-script-region\n            parts[0] = parts[0].toLowerCase();\n            parts[1] = parts[1].charAt(0).toUpperCase() + parts[1].slice(1).toLowerCase();\n            parts[2] = parts[2].toUpperCase();\n            break;\n          default:\n            return temp;\n        }\n\n        return parts.join('-');\n      },\n      'iso639-1' : function (tag) {\n        var temp = (tag || '').split('_').join('-');\n        var parts = temp.split('-');\n        return parts[0].toLowerCase();\n      }\n    };\n\n  var version = '2.19.1';\n\n  // tries to determine the browsers language\n  var getFirstBrowserLanguage = function () {\n\n    // internal purpose only\n    if (angular.isFunction(pascalprechtTranslateOverrider.getLocale)) {\n      return pascalprechtTranslateOverrider.getLocale();\n    }\n\n    var nav = $windowProvider.$get().navigator,\n      browserLanguagePropertyKeys = ['language', 'browserLanguage', 'systemLanguage', 'userLanguage'],\n      i,\n      language;\n\n    // support for HTML 5.1 \"navigator.languages\"\n    if (angular.isArray(nav.languages)) {\n      for (i = 0; i < nav.languages.length; i++) {\n        language = nav.languages[i];\n        if (language && language.length) {\n          return language;\n        }\n      }\n    }\n\n    // support for other well known properties in browsers\n    for (i = 0; i < browserLanguagePropertyKeys.length; i++) {\n      language = nav[browserLanguagePropertyKeys[i]];\n      if (language && language.length) {\n        return language;\n      }\n    }\n\n    return null;\n  };\n  getFirstBrowserLanguage.displayName = 'angular-translate/service: getFirstBrowserLanguage';\n\n  // tries to determine the browsers locale\n  var getLocale = function () {\n    var locale = getFirstBrowserLanguage() || '';\n    if (languageTagResolver[uniformLanguageTagResolver]) {\n      locale = languageTagResolver[uniformLanguageTagResolver](locale);\n    }\n    return locale;\n  };\n  getLocale.displayName = 'angular-translate/service: getLocale';\n\n  /**\n   * @name indexOf\n   * @private\n   *\n   * @description\n   * indexOf polyfill. Kinda sorta.\n   *\n   * @param {array} array Array to search in.\n   * @param {string} searchElement Element to search for.\n   *\n   * @returns {int} Index of search element.\n   */\n  var indexOf = function (array, searchElement) {\n    for (var i = 0, len = array.length; i < len; i++) {\n      if (array[i] === searchElement) {\n        return i;\n      }\n    }\n    return -1;\n  };\n\n  /**\n   * @name trim\n   * @private\n   *\n   * @description\n   * trim polyfill\n   *\n   * @returns {string} The string stripped of whitespace from both ends\n   */\n  var trim = function () {\n    return this.toString().replace(/^\\s+|\\s+$/g, '');\n  };\n\n  /**\n   * @name lowercase\n   * @private\n   *\n   * @description\n   * Return the lowercase string only if the type is string\n   *\n   * @returns {string} The string all in lowercase\n   */\n  var lowercase = function (string) {\n    return angular.isString(string) ? string.toLowerCase() : string;\n  };\n\n  var negotiateLocale = function (preferred) {\n    if (!preferred) {\n      return;\n    }\n\n    var avail = [],\n      locale = lowercase(preferred),\n      i = 0,\n      n = $availableLanguageKeys.length;\n\n    for (; i < n; i++) {\n      avail.push(lowercase($availableLanguageKeys[i]));\n    }\n\n    // Check for an exact match in our list of available keys\n    i = indexOf(avail, locale);\n    if (i > -1) {\n      return $availableLanguageKeys[i];\n    }\n\n    if ($languageKeyAliases) {\n      var alias;\n      for (var langKeyAlias in $languageKeyAliases) {\n        if ($languageKeyAliases.hasOwnProperty(langKeyAlias)) {\n          var hasWildcardKey = false;\n          var hasExactKey = Object.prototype.hasOwnProperty.call($languageKeyAliases, langKeyAlias) &&\n            lowercase(langKeyAlias) === lowercase(preferred);\n\n          if (langKeyAlias.slice(-1) === '*') {\n            hasWildcardKey = lowercase(langKeyAlias.slice(0, -1)) === lowercase(preferred.slice(0, langKeyAlias.length - 1));\n          }\n          if (hasExactKey || hasWildcardKey) {\n            alias = $languageKeyAliases[langKeyAlias];\n            if (indexOf(avail, lowercase(alias)) > -1) {\n              return alias;\n            }\n          }\n        }\n      }\n    }\n\n    // Check for a language code without region\n    var parts = preferred.split('_');\n\n    if (parts.length > 1 && indexOf(avail, lowercase(parts[0])) > -1) {\n      return parts[0];\n    }\n\n    // If everything fails, return undefined.\n    return;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#translations\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Registers a new translation table for specific language key.\n   *\n   * To register a translation table for specific language, pass a defined language\n   * key as first parameter.\n   *\n   * <pre>\n   *  // register translation table for language: 'de_DE'\n   *  $translateProvider.translations('de_DE', {\n   *    'GREETING': 'Hallo Welt!'\n   *  });\n   *\n   *  // register another one\n   *  $translateProvider.translations('en_US', {\n   *    'GREETING': 'Hello world!'\n   *  });\n   * </pre>\n   *\n   * When registering multiple translation tables for for the same language key,\n   * the actual translation table gets extended. This allows you to define module\n   * specific translation which only get added, once a specific module is loaded in\n   * your app.\n   *\n   * Invoking this method with no arguments returns the translation table which was\n   * registered with no language key. Invoking it with a language key returns the\n   * related translation table.\n   *\n   * @param {string} langKey A language key.\n   * @param {object} translationTable A plain old JavaScript object that represents a translation table.\n   *\n   */\n  var translations = function (langKey, translationTable) {\n\n    if (!langKey && !translationTable) {\n      return $translationTable;\n    }\n\n    if (langKey && !translationTable) {\n      if (angular.isString(langKey)) {\n        return $translationTable[langKey];\n      }\n    } else {\n      if (!angular.isObject($translationTable[langKey])) {\n        $translationTable[langKey] = {};\n      }\n      angular.extend($translationTable[langKey], flatObject(translationTable));\n    }\n    return this;\n  };\n\n  this.translations = translations;\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#cloakClassName\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   *\n   * Let's you change the class name for `translate-cloak` directive.\n   * Default class name is `translate-cloak`.\n   *\n   * @param {string} name translate-cloak class name\n   */\n  this.cloakClassName = function (name) {\n    if (!name) {\n      return $cloakClassName;\n    }\n    $cloakClassName = name;\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#allowNamespaces\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Let's you disable namespaces, if you don't need nested translation\n   * object files. Disabling namespaces can improve performance.\n   *\n   * Default value is `true`. Namespaces are enabled by default.\n   *\n   * @param {boolean} namespacesEnabled - namespaces are enabled or not\n   */\n  this.allowNamespaces = function (namespacesEnabled) {\n    if (namespacesEnabled === undefined) {\n      return $allowNamespaces;\n    }\n    $allowNamespaces = namespacesEnabled;\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#nestedObjectDelimeter\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   *\n   * Let's you change the delimiter for namespaced translations.\n   * Default delimiter is `.`.\n   *\n   * @param {string} delimiter namespace separator\n   */\n  this.nestedObjectDelimeter = function (delimiter) {\n    if (!delimiter) {\n      return $nestedObjectDelimeter;\n    }\n    $nestedObjectDelimeter = delimiter;\n    return this;\n  };\n\n  /**\n   * @name flatObject\n   * @private\n   *\n   * @description\n   * Flats an object. This function is used to flatten given translation data with\n   * namespaces, so they are later accessible via dot notation.\n   */\n  var flatObject = function (data, path, result, prevKey) {\n    var key, keyWithPath, keyWithShortPath, val;\n\n    if (!path) {\n      path = [];\n    }\n    if (!result) {\n      result = {};\n    }\n    if (!$allowNamespaces) {\n      return data;\n    }\n    for (key in data) {\n      if (!Object.prototype.hasOwnProperty.call(data, key)) {\n        continue;\n      }\n      val = data[key];\n      if (angular.isObject(val)) {\n        flatObject(val, path.concat(key), result, key);\n      } else {\n        keyWithPath = path.length ? ('' + path.join($nestedObjectDelimeter) + $nestedObjectDelimeter + key) : key;\n        if (path.length && key === prevKey) {\n          // Create shortcut path (foo.bar == foo.bar.bar)\n          keyWithShortPath = '' + path.join($nestedObjectDelimeter);\n          // Link it to original path\n          result[keyWithShortPath] = '@:' + keyWithPath;\n        }\n        result[keyWithPath] = val;\n      }\n    }\n    return result;\n  };\n  flatObject.displayName = 'flatObject';\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#addInterpolation\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Adds interpolation services to angular-translate, so it can manage them.\n   *\n   * @param {object} factory Interpolation service factory\n   */\n  this.addInterpolation = function (factory) {\n    $interpolatorFactories.push(factory);\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useMessageFormatInterpolation\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells angular-translate to use interpolation functionality of messageformat.js.\n   * This is useful when having high level pluralization and gender selection.\n   */\n  this.useMessageFormatInterpolation = function () {\n    return this.useInterpolation('$translateMessageFormatInterpolation');\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useInterpolation\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells angular-translate which interpolation style to use as default, application-wide.\n   * Simply pass a factory/service name. The interpolation service has to implement\n   * the correct interface.\n   *\n   * @param {string} factory Interpolation service name.\n   */\n  this.useInterpolation = function (factory) {\n    $interpolationFactory = factory;\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useSanitizeStrategy\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Simply sets a sanitation strategy type.\n   *\n   * @param {string} value Strategy type.\n   */\n  this.useSanitizeValueStrategy = function (value) {\n    $translateSanitizationProvider.useStrategy(value);\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#preferredLanguage\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells the module which of the registered translation tables to use for translation\n   * at initial startup by passing a language key. Similar to `$translateProvider#use`\n   * only that it says which language to **prefer**.\n   * It is recommended to call this after {@link pascalprecht.translate.$translate#fallbackLanguage fallbackLanguage()}.\n   *\n   * @param {string} langKey A language key.\n   */\n  this.preferredLanguage = function (langKey) {\n    if (langKey) {\n      setupPreferredLanguage(langKey);\n      return this;\n    }\n    return $preferredLanguage;\n  };\n  var setupPreferredLanguage = function (langKey) {\n    if (langKey) {\n      $preferredLanguage = langKey;\n    }\n    return $preferredLanguage;\n  };\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#translationNotFoundIndicator\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Sets an indicator which is used when a translation isn't found. E.g. when\n   * setting the indicator as 'X' and one tries to translate a translation id\n   * called `NOT_FOUND`, this will result in `X NOT_FOUND X`.\n   *\n   * Internally this methods sets a left indicator and a right indicator using\n   * `$translateProvider.translationNotFoundIndicatorLeft()` and\n   * `$translateProvider.translationNotFoundIndicatorRight()`.\n   *\n   * **Note**: These methods automatically add a whitespace between the indicators\n   * and the translation id.\n   *\n   * @param {string} indicator An indicator, could be any string.\n   */\n  this.translationNotFoundIndicator = function (indicator) {\n    this.translationNotFoundIndicatorLeft(indicator);\n    this.translationNotFoundIndicatorRight(indicator);\n    return this;\n  };\n\n  /**\n   * ngdoc function\n   * @name pascalprecht.translate.$translateProvider#translationNotFoundIndicatorLeft\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Sets an indicator which is used when a translation isn't found left to the\n   * translation id.\n   *\n   * @param {string} indicator An indicator.\n   */\n  this.translationNotFoundIndicatorLeft = function (indicator) {\n    if (!indicator) {\n      return $notFoundIndicatorLeft;\n    }\n    $notFoundIndicatorLeft = indicator;\n    return this;\n  };\n\n  /**\n   * ngdoc function\n   * @name pascalprecht.translate.$translateProvider#translationNotFoundIndicatorLeft\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Sets an indicator which is used when a translation isn't found right to the\n   * translation id.\n   *\n   * @param {string} indicator An indicator.\n   */\n  this.translationNotFoundIndicatorRight = function (indicator) {\n    if (!indicator) {\n      return $notFoundIndicatorRight;\n    }\n    $notFoundIndicatorRight = indicator;\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#fallbackLanguage\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells the module which of the registered translation tables to use when missing translations\n   * at initial startup by passing a language key. Similar to `$translateProvider#use`\n   * only that it says which language to **fallback**.\n   *\n   * @param {string||array} langKey A language key.\n   *\n   */\n  this.fallbackLanguage = function (langKey) {\n    fallbackStack(langKey);\n    return this;\n  };\n\n  var fallbackStack = function (langKey) {\n    if (langKey) {\n      if (angular.isString(langKey)) {\n        $fallbackWasString = true;\n        $fallbackLanguage = [langKey];\n      } else if (angular.isArray(langKey)) {\n        $fallbackWasString = false;\n        $fallbackLanguage = langKey;\n      }\n      if (angular.isString($preferredLanguage) && indexOf($fallbackLanguage, $preferredLanguage) < 0) {\n        $fallbackLanguage.push($preferredLanguage);\n      }\n\n      return this;\n    } else {\n      if ($fallbackWasString) {\n        return $fallbackLanguage[0];\n      } else {\n        return $fallbackLanguage;\n      }\n    }\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#use\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Set which translation table to use for translation by given language key. When\n   * trying to 'use' a language which isn't provided, it'll throw an error.\n   *\n   * You actually don't have to use this method since `$translateProvider#preferredLanguage`\n   * does the job too.\n   *\n   * @param {string} langKey A language key.\n   */\n  this.use = function (langKey) {\n    if (langKey) {\n      if (!$translationTable[langKey] && (!$loaderFactory)) {\n        // only throw an error, when not loading translation data asynchronously\n        throw new Error('$translateProvider couldn\\'t find translationTable for langKey: \\'' + langKey + '\\'');\n      }\n      $uses = langKey;\n      return this;\n    }\n    return $uses;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#resolveClientLocale\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * This returns the current browser/client's language key. The result is processed with the configured uniform tag resolver.\n   *\n   * @returns {string} the current client/browser language key\n   */\n  this.resolveClientLocale = function () {\n    return getLocale();\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#storageKey\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells the module which key must represent the choosed language by a user in the storage.\n   *\n   * @param {string} key A key for the storage.\n   */\n  var storageKey = function (key) {\n    if (!key) {\n      if ($storagePrefix) {\n        return $storagePrefix + $storageKey;\n      }\n      return $storageKey;\n    }\n    $storageKey = key;\n    return this;\n  };\n\n  this.storageKey = storageKey;\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useUrlLoader\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells angular-translate to use `$translateUrlLoader` extension service as loader.\n   *\n   * @param {string} url Url\n   * @param {Object=} options Optional configuration object\n   */\n  this.useUrlLoader = function (url, options) {\n    return this.useLoader('$translateUrlLoader', angular.extend({url : url}, options));\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useStaticFilesLoader\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells angular-translate to use `$translateStaticFilesLoader` extension service as loader.\n   *\n   * @param {Object=} options Optional configuration object\n   */\n  this.useStaticFilesLoader = function (options) {\n    return this.useLoader('$translateStaticFilesLoader', options);\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useLoader\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells angular-translate to use any other service as loader.\n   *\n   * @param {string} loaderFactory Factory name to use\n   * @param {Object=} options Optional configuration object\n   */\n  this.useLoader = function (loaderFactory, options) {\n    $loaderFactory = loaderFactory;\n    $loaderOptions = options || {};\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useLocalStorage\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells angular-translate to use `$translateLocalStorage` service as storage layer.\n   *\n   */\n  this.useLocalStorage = function () {\n    return this.useStorage('$translateLocalStorage');\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useCookieStorage\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells angular-translate to use `$translateCookieStorage` service as storage layer.\n   */\n  this.useCookieStorage = function () {\n    return this.useStorage('$translateCookieStorage');\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useStorage\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells angular-translate to use custom service as storage layer.\n   */\n  this.useStorage = function (storageFactory) {\n    $storageFactory = storageFactory;\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#storagePrefix\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Sets prefix for storage key.\n   *\n   * @param {string} prefix Storage key prefix\n   */\n  this.storagePrefix = function (prefix) {\n    if (!prefix) {\n      return prefix;\n    }\n    $storagePrefix = prefix;\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useMissingTranslationHandlerLog\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells angular-translate to use built-in log handler when trying to translate\n   * a translation Id which doesn't exist.\n   *\n   * This is actually a shortcut method for `useMissingTranslationHandler()`.\n   *\n   */\n  this.useMissingTranslationHandlerLog = function () {\n    return this.useMissingTranslationHandler('$translateMissingTranslationHandlerLog');\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useMissingTranslationHandler\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Expects a factory name which later gets instantiated with `$injector`.\n   * This method can be used to tell angular-translate to use a custom\n   * missingTranslationHandler. Just build a factory which returns a function\n   * and expects a translation id as argument.\n   *\n   * Example:\n   * <pre>\n   *  app.config(function ($translateProvider) {\n   *    $translateProvider.useMissingTranslationHandler('customHandler');\n   *  });\n   *\n   *  app.factory('customHandler', function (dep1, dep2) {\n   *    return function (translationId) {\n   *      // something with translationId and dep1 and dep2\n   *    };\n   *  });\n   * </pre>\n   *\n   * @param {string} factory Factory name\n   */\n  this.useMissingTranslationHandler = function (factory) {\n    $missingTranslationHandlerFactory = factory;\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#usePostCompiling\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * If post compiling is enabled, all translated values will be processed\n   * again with AngularJS' $compile.\n   *\n   * Example:\n   * <pre>\n   *  app.config(function ($translateProvider) {\n   *    $translateProvider.usePostCompiling(true);\n   *  });\n   * </pre>\n   *\n   * @param {string} factory Factory name\n   */\n  this.usePostCompiling = function (value) {\n    $postCompilingEnabled = !(!value);\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#forceAsyncReload\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * If force async reload is enabled, async loader will always be called\n   * even if $translationTable already contains the language key, adding\n   * possible new entries to the $translationTable.\n   *\n   * Example:\n   * <pre>\n   *  app.config(function ($translateProvider) {\n   *    $translateProvider.forceAsyncReload(true);\n   *  });\n   * </pre>\n   *\n   * @param {boolean} value - valid values are true or false\n   */\n  this.forceAsyncReload = function (value) {\n    $forceAsyncReloadEnabled = !(!value);\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#uniformLanguageTag\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells angular-translate which language tag should be used as a result when determining\n   * the current browser language.\n   *\n   * This setting must be set before invoking {@link pascalprecht.translate.$translateProvider#methods_determinePreferredLanguage determinePreferredLanguage()}.\n   *\n   * <pre>\n   * $translateProvider\n   *   .uniformLanguageTag('bcp47')\n   *   .determinePreferredLanguage()\n   * </pre>\n   *\n   * The resolver currently supports:\n   * * default\n   *     (traditionally: hyphens will be converted into underscores, i.e. en-US => en_US)\n   *     en-US => en_US\n   *     en_US => en_US\n   *     en-us => en_us\n   * * java\n   *     like default, but the second part will be always in uppercase\n   *     en-US => en_US\n   *     en_US => en_US\n   *     en-us => en_US\n   * * BCP 47 (RFC 4646 & 4647)\n   *     EN => en\n   *     en-US => en-US\n   *     en_US => en-US\n   *     en-us => en-US\n   *     sr-latn => sr-Latn\n   *     sr-latn-rs => sr-Latn-RS\n   *\n   * See also:\n   * * http://en.wikipedia.org/wiki/IETF_language_tag\n   * * http://www.w3.org/International/core/langtags/\n   * * http://tools.ietf.org/html/bcp47\n   *\n   * @param {string|object} options - options (or standard)\n   * @param {string} options.standard - valid values are 'default', 'bcp47', 'java'\n   */\n  this.uniformLanguageTag = function (options) {\n\n    if (!options) {\n      options = {};\n    } else if (angular.isString(options)) {\n      options = {\n        standard : options\n      };\n    }\n\n    uniformLanguageTagResolver = options.standard;\n\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#determinePreferredLanguage\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Tells angular-translate to try to determine on its own which language key\n   * to set as preferred language. When `fn` is given, angular-translate uses it\n   * to determine a language key, otherwise it uses the built-in `getLocale()`\n   * method.\n   *\n   * The `getLocale()` returns a language key in the format `[lang]_[country]` or\n   * `[lang]` depending on what the browser provides.\n   *\n   * Use this method at your own risk, since not all browsers return a valid\n   * locale (see {@link pascalprecht.translate.$translateProvider#methods_uniformLanguageTag uniformLanguageTag()}).\n   *\n   * @param {Function=} fn Function to determine a browser's locale\n   */\n  this.determinePreferredLanguage = function (fn) {\n\n    var locale = (fn && angular.isFunction(fn)) ? fn() : getLocale();\n\n    if (!$availableLanguageKeys.length) {\n      $preferredLanguage = locale;\n    } else {\n      $preferredLanguage = negotiateLocale(locale) || locale;\n    }\n\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#registerAvailableLanguageKeys\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Registers a set of language keys the app will work with. Use this method in\n   * combination with\n   * {@link pascalprecht.translate.$translateProvider#determinePreferredLanguage determinePreferredLanguage}.\n   * When available languages keys are registered, angular-translate\n   * tries to find the best fitting language key depending on the browsers locale,\n   * considering your language key convention.\n   *\n   * @param {object} languageKeys Array of language keys the your app will use\n   * @param {object=} aliases Alias map.\n   */\n  this.registerAvailableLanguageKeys = function (languageKeys, aliases) {\n    if (languageKeys) {\n      $availableLanguageKeys = languageKeys;\n      if (aliases) {\n        $languageKeyAliases = aliases;\n      }\n      return this;\n    }\n    return $availableLanguageKeys;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#useLoaderCache\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Registers a cache for internal $http based loaders.\n   * {@link pascalprecht.translate.$translationCache $translationCache}.\n   * When false the cache will be disabled (default). When true or undefined\n   * the cache will be a default (see $cacheFactory). When an object it will\n   * be treat as a cache object itself: the usage is $http({cache: cache})\n   *\n   * @param {object} cache boolean, string or cache-object\n   */\n  this.useLoaderCache = function (cache) {\n    if (cache === false) {\n      // disable cache\n      loaderCache = undefined;\n    } else if (cache === true) {\n      // enable cache using AJS defaults\n      loaderCache = true;\n    } else if (typeof(cache) === 'undefined') {\n      // enable cache using default\n      loaderCache = '$translationCache';\n    } else if (cache) {\n      // enable cache using given one (see $cacheFactory)\n      loaderCache = cache;\n    }\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#directivePriority\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Sets the default priority of the translate directive. The standard value is `0`.\n   * Calling this function without an argument will return the current value.\n   *\n   * @param {number} priority for the translate-directive\n   */\n  this.directivePriority = function (priority) {\n    if (priority === undefined) {\n      // getter\n      return directivePriority;\n    } else {\n      // setter with chaining\n      directivePriority = priority;\n      return this;\n    }\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#statefulFilter\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * Since AngularJS 1.3, filters which are not stateless (depending at the scope)\n   * have to explicit define this behavior.\n   * Sets whether the translate filter should be stateful or stateless. The standard value is `true`\n   * meaning being stateful.\n   * Calling this function without an argument will return the current value.\n   *\n   * @param {boolean} state - defines the state of the filter\n   */\n  this.statefulFilter = function (state) {\n    if (state === undefined) {\n      // getter\n      return statefulFilter;\n    } else {\n      // setter with chaining\n      statefulFilter = state;\n      return this;\n    }\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#postProcess\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * The post processor will be intercept right after the translation result. It can modify the result.\n   *\n   * @param {object} fn Function or service name (string) to be called after the translation value has been set / resolved. The function itself will enrich every value being processed and then continue the normal resolver process\n   */\n  this.postProcess = function (fn) {\n    if (fn) {\n      postProcessFn = fn;\n    } else {\n      postProcessFn = undefined;\n    }\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateProvider#keepContent\n   * @methodOf pascalprecht.translate.$translateProvider\n   *\n   * @description\n   * If keepContent is set to true than translate directive will always use innerHTML\n   * as a default translation\n   *\n   * Example:\n   * <pre>\n   *  app.config(function ($translateProvider) {\n   *    $translateProvider.keepContent(true);\n   *  });\n   * </pre>\n   *\n   * @param {boolean} value - valid values are true or false\n   */\n  this.keepContent = function (value) {\n    $keepContent = !(!value);\n    return this;\n  };\n\n  /**\n   * @ngdoc object\n   * @name pascalprecht.translate.$translate\n   * @requires $interpolate\n   * @requires $log\n   * @requires $rootScope\n   * @requires $q\n   *\n   * @description\n   * The `$translate` service is the actual core of angular-translate. It expects a translation id\n   * and optional interpolate parameters to translate contents.\n   *\n   * <pre>\n   *  $translate('HEADLINE_TEXT').then(function (translation) {\n   *    $scope.translatedText = translation;\n   *  });\n   * </pre>\n   *\n   * @param {string|array} translationId A token which represents a translation id\n   *                                     This can be optionally an array of translation ids which\n   *                                     results that the function returns an object where each key\n   *                                     is the translation id and the value the translation.\n   * @param {object=} [interpolateParams={}] An object hash for dynamic values\n   * @param {string=} [interpolationId=undefined] The id of the interpolation to use (use default unless set via useInterpolation())\n   * @param {string=} [defaultTranslationText=undefined] the optional default translation text that is written as\n   *                                        as default text in case it is not found in any configured language\n   * @param {string=} [forceLanguage=false] A language to be used instead of the current language\n   * @param {string=} [sanitizeStrategy=undefined] force sanitize strategy for this call instead of using the configured one (use default unless set)\n   * @returns {object} promise\n   */\n  this.$get = ['$log', '$injector', '$rootScope', '$q', function ($log, $injector, $rootScope, $q) {\n\n    var Storage,\n      defaultInterpolator = $injector.get($interpolationFactory || '$translateDefaultInterpolation'),\n      pendingLoader = false,\n      interpolatorHashMap = {},\n      langPromises = {},\n      fallbackIndex,\n      startFallbackIteration;\n\n    var $translate = function (translationId, interpolateParams, interpolationId, defaultTranslationText, forceLanguage, sanitizeStrategy) {\n      if (!$uses && $preferredLanguage) {\n        $uses = $preferredLanguage;\n      }\n      var uses = (forceLanguage && forceLanguage !== $uses) ? // we don't want to re-negotiate $uses\n        (negotiateLocale(forceLanguage) || forceLanguage) : $uses;\n\n      // Check forceLanguage is present\n      if (forceLanguage) {\n        loadTranslationsIfMissing(forceLanguage);\n      }\n\n      // Duck detection: If the first argument is an array, a bunch of translations was requested.\n      // The result is an object.\n      if (angular.isArray(translationId)) {\n        // Inspired by Q.allSettled by Kris Kowal\n        // https://github.com/kriskowal/q/blob/b0fa72980717dc202ffc3cbf03b936e10ebbb9d7/q.js#L1553-1563\n        // This transforms all promises regardless resolved or rejected\n        var translateAll = function (translationIds) {\n          var results = {}; // storing the actual results\n          var promises = []; // promises to wait for\n          // Wraps the promise a) being always resolved and b) storing the link id->value\n          var translate = function (translationId) {\n            var deferred = $q.defer();\n            var regardless = function (value) {\n              results[translationId] = value;\n              deferred.resolve([translationId, value]);\n            };\n            // we don't care whether the promise was resolved or rejected; just store the values\n            $translate(translationId, interpolateParams, interpolationId, defaultTranslationText, forceLanguage, sanitizeStrategy).then(regardless, regardless);\n            return deferred.promise;\n          };\n          for (var i = 0, c = translationIds.length; i < c; i++) {\n            promises.push(translate(translationIds[i]));\n          }\n          // wait for all (including storing to results)\n          return $q.all(promises).then(function () {\n            // return the results\n            return results;\n          });\n        };\n        return translateAll(translationId);\n      }\n\n      var deferred = $q.defer();\n\n      // trim off any whitespace\n      if (translationId) {\n        translationId = trim.apply(translationId);\n      } else {\n        throw new TypeError('translationId must be a not empty string');\n      }\n\n      var promiseToWaitFor = (function () {\n        var promise = langPromises[uses] || langPromises[$preferredLanguage];\n\n        fallbackIndex = 0;\n\n        if ($storageFactory && !promise) {\n          // looks like there's no pending promise for $preferredLanguage or\n          // $uses. Maybe there's one pending for a language that comes from\n          // storage.\n          var langKey = Storage.get($storageKey);\n          promise = langPromises[langKey];\n\n          if ($fallbackLanguage && $fallbackLanguage.length) {\n            var index = indexOf($fallbackLanguage, langKey);\n            // maybe the language from storage is also defined as fallback language\n            // we increase the fallback language index to not search in that language\n            // as fallback, since it's probably the first used language\n            // in that case the index starts after the first element\n            fallbackIndex = (index === 0) ? 1 : 0;\n\n            // but we can make sure to ALWAYS fallback to preferred language at least\n            if (indexOf($fallbackLanguage, $preferredLanguage) < 0) {\n              $fallbackLanguage.push($preferredLanguage);\n            }\n          }\n        }\n        return promise;\n      }());\n\n      if (!promiseToWaitFor) {\n        // no promise to wait for? okay. Then there's no loader registered\n        // nor is a one pending for language that comes from storage.\n        // We can just translate.\n        determineTranslation(translationId, interpolateParams, interpolationId, defaultTranslationText, uses, sanitizeStrategy).then(deferred.resolve, deferred.reject);\n      } else {\n        var promiseResolved = function () {\n          // $uses may have changed while waiting\n          if (!forceLanguage) {\n            uses = $uses;\n          }\n          determineTranslation(translationId, interpolateParams, interpolationId, defaultTranslationText, uses, sanitizeStrategy).then(deferred.resolve, deferred.reject);\n        };\n        promiseResolved.displayName = 'promiseResolved';\n\n        promiseToWaitFor['finally'](promiseResolved)['catch'](angular.noop); // we don't care about errors here, already handled\n      }\n      return deferred.promise;\n    };\n\n    /**\n     * @name applyNotFoundIndicators\n     * @private\n     *\n     * @description\n     * Applies not fount indicators to given translation id, if needed.\n     * This function gets only executed, if a translation id doesn't exist,\n     * which is why a translation id is expected as argument.\n     *\n     * @param {string} translationId Translation id.\n     * @returns {string} Same as given translation id but applied with not found\n     * indicators.\n     */\n    var applyNotFoundIndicators = function (translationId) {\n      // applying notFoundIndicators\n      if ($notFoundIndicatorLeft) {\n        translationId = [$notFoundIndicatorLeft, translationId].join(' ');\n      }\n      if ($notFoundIndicatorRight) {\n        translationId = [translationId, $notFoundIndicatorRight].join(' ');\n      }\n      return translationId;\n    };\n\n    /**\n     * @name useLanguage\n     * @private\n     *\n     * @description\n     * Makes actual use of a language by setting a given language key as used\n     * language and informs registered interpolators to also use the given\n     * key as locale.\n     *\n     * @param {string} key Locale key.\n     */\n    var useLanguage = function (key) {\n      $uses = key;\n\n      // make sure to store new language key before triggering success event\n      if ($storageFactory) {\n        Storage.put($translate.storageKey(), $uses);\n      }\n\n      $rootScope.$emit('$translateChangeSuccess', {language : key});\n\n      // inform default interpolator\n      defaultInterpolator.setLocale($uses);\n\n      var eachInterpolator = function (interpolator, id) {\n        interpolatorHashMap[id].setLocale($uses);\n      };\n      eachInterpolator.displayName = 'eachInterpolatorLocaleSetter';\n\n      // inform all others too!\n      angular.forEach(interpolatorHashMap, eachInterpolator);\n      $rootScope.$emit('$translateChangeEnd', {language : key});\n    };\n\n    /**\n     * @name loadAsync\n     * @private\n     *\n     * @description\n     * Kicks off registered async loader using `$injector` and applies existing\n     * loader options. When resolved, it updates translation tables accordingly\n     * or rejects with given language key.\n     *\n     * @param {string} key Language key.\n     * @return {Promise} A promise.\n     */\n    var loadAsync = function (key) {\n      if (!key) {\n        throw 'No language key specified for loading.';\n      }\n\n      var deferred = $q.defer();\n\n      $rootScope.$emit('$translateLoadingStart', {language : key});\n      pendingLoader = true;\n\n      var cache = loaderCache;\n      if (typeof(cache) === 'string') {\n        // getting on-demand instance of loader\n        cache = $injector.get(cache);\n      }\n\n      var loaderOptions = angular.extend({}, $loaderOptions, {\n        key : key,\n        $http : angular.extend({}, {\n          cache : cache\n        }, $loaderOptions.$http)\n      });\n\n      var onLoaderSuccess = function (data) {\n        var translationTable = {};\n        $rootScope.$emit('$translateLoadingSuccess', {language : key});\n\n        if (angular.isArray(data)) {\n          angular.forEach(data, function (table) {\n            angular.extend(translationTable, flatObject(table));\n          });\n        } else {\n          angular.extend(translationTable, flatObject(data));\n        }\n        pendingLoader = false;\n        deferred.resolve({\n          key : key,\n          table : translationTable\n        });\n        $rootScope.$emit('$translateLoadingEnd', {language : key});\n      };\n      onLoaderSuccess.displayName = 'onLoaderSuccess';\n\n      var onLoaderError = function (key) {\n        $rootScope.$emit('$translateLoadingError', {language : key});\n        deferred.reject(key);\n        $rootScope.$emit('$translateLoadingEnd', {language : key});\n      };\n      onLoaderError.displayName = 'onLoaderError';\n\n      $injector.get($loaderFactory)(loaderOptions)\n        .then(onLoaderSuccess, onLoaderError);\n\n      return deferred.promise;\n    };\n\n    if ($storageFactory) {\n      Storage = $injector.get($storageFactory);\n\n      if (!Storage.get || !Storage.put) {\n        throw new Error('Couldn\\'t use storage \\'' + $storageFactory + '\\', missing get() or put() method!');\n      }\n    }\n\n    // if we have additional interpolations that were added via\n    // $translateProvider.addInterpolation(), we have to map'em\n    if ($interpolatorFactories.length) {\n      var eachInterpolationFactory = function (interpolatorFactory) {\n        var interpolator = $injector.get(interpolatorFactory);\n        // setting initial locale for each interpolation service\n        interpolator.setLocale($preferredLanguage || $uses);\n        // make'em recognizable through id\n        interpolatorHashMap[interpolator.getInterpolationIdentifier()] = interpolator;\n      };\n      eachInterpolationFactory.displayName = 'interpolationFactoryAdder';\n\n      angular.forEach($interpolatorFactories, eachInterpolationFactory);\n    }\n\n    /**\n     * @name getTranslationTable\n     * @private\n     *\n     * @description\n     * Returns a promise that resolves to the translation table\n     * or is rejected if an error occurred.\n     *\n     * @param langKey\n     * @returns {Q.promise}\n     */\n    var getTranslationTable = function (langKey) {\n      var deferred = $q.defer();\n      if (Object.prototype.hasOwnProperty.call($translationTable, langKey)) {\n        deferred.resolve($translationTable[langKey]);\n      } else if (langPromises[langKey]) {\n        var onResolve = function (data) {\n          translations(data.key, data.table);\n          deferred.resolve(data.table);\n        };\n        onResolve.displayName = 'translationTableResolver';\n        langPromises[langKey].then(onResolve, deferred.reject);\n      } else {\n        deferred.reject();\n      }\n      return deferred.promise;\n    };\n\n    /**\n     * @name getFallbackTranslation\n     * @private\n     *\n     * @description\n     * Returns a promise that will resolve to the translation\n     * or be rejected if no translation was found for the language.\n     * This function is currently only used for fallback language translation.\n     *\n     * @param langKey The language to translate to.\n     * @param translationId\n     * @param interpolateParams\n     * @param Interpolator\n     * @param sanitizeStrategy\n     * @returns {Q.promise}\n     */\n    var getFallbackTranslation = function (langKey, translationId, interpolateParams, Interpolator, sanitizeStrategy) {\n      var deferred = $q.defer();\n\n      var onResolve = function (translationTable) {\n        if (Object.prototype.hasOwnProperty.call(translationTable, translationId) && translationTable[translationId] !== null) {\n          Interpolator.setLocale(langKey);\n          var translation = translationTable[translationId];\n          if (translation.substr(0, 2) === '@:') {\n            getFallbackTranslation(langKey, translation.substr(2), interpolateParams, Interpolator, sanitizeStrategy)\n              .then(deferred.resolve, deferred.reject);\n          } else {\n            var interpolatedValue = Interpolator.interpolate(translationTable[translationId], interpolateParams, 'service', sanitizeStrategy, translationId);\n            interpolatedValue = applyPostProcessing(translationId, translationTable[translationId], interpolatedValue, interpolateParams, langKey);\n\n            deferred.resolve(interpolatedValue);\n\n          }\n          Interpolator.setLocale($uses);\n        } else {\n          deferred.reject();\n        }\n      };\n      onResolve.displayName = 'fallbackTranslationResolver';\n\n      getTranslationTable(langKey).then(onResolve, deferred.reject);\n\n      return deferred.promise;\n    };\n\n    /**\n     * @name getFallbackTranslationInstant\n     * @private\n     *\n     * @description\n     * Returns a translation\n     * This function is currently only used for fallback language translation.\n     *\n     * @param langKey The language to translate to.\n     * @param translationId\n     * @param interpolateParams\n     * @param Interpolator\n     * @param sanitizeStrategy sanitize strategy override\n     *\n     * @returns {string} translation\n     */\n    var getFallbackTranslationInstant = function (langKey, translationId, interpolateParams, Interpolator, sanitizeStrategy) {\n      var result, translationTable = $translationTable[langKey];\n\n      if (translationTable && Object.prototype.hasOwnProperty.call(translationTable, translationId) && translationTable[translationId] !== null) {\n        Interpolator.setLocale(langKey);\n        result = Interpolator.interpolate(translationTable[translationId], interpolateParams, 'filter', sanitizeStrategy, translationId);\n        result = applyPostProcessing(translationId, translationTable[translationId], result, interpolateParams, langKey, sanitizeStrategy);\n        // workaround for TrustedValueHolderType\n        if (!angular.isString(result) && angular.isFunction(result.$$unwrapTrustedValue)) {\n          var result2 = result.$$unwrapTrustedValue();\n          if (result2.substr(0, 2) === '@:') {\n            return getFallbackTranslationInstant(langKey, result2.substr(2), interpolateParams, Interpolator, sanitizeStrategy);\n          }\n        } else if (result.substr(0, 2) === '@:') {\n          return getFallbackTranslationInstant(langKey, result.substr(2), interpolateParams, Interpolator, sanitizeStrategy);\n        }\n        Interpolator.setLocale($uses);\n      }\n\n      return result;\n    };\n\n\n    /**\n     * @name translateByHandler\n     * @private\n     *\n     * Translate by missing translation handler.\n     *\n     * @param translationId\n     * @param interpolateParams\n     * @param defaultTranslationText\n     * @param sanitizeStrategy sanitize strategy override\n     *\n     * @returns translation created by $missingTranslationHandler or translationId is $missingTranslationHandler is\n     * absent\n     */\n    var translateByHandler = function (translationId, interpolateParams, defaultTranslationText, sanitizeStrategy) {\n      // If we have a handler factory - we might also call it here to determine if it provides\n      // a default text for a translationid that can't be found anywhere in our tables\n      if ($missingTranslationHandlerFactory) {\n        return $injector.get($missingTranslationHandlerFactory)(translationId, $uses, interpolateParams, defaultTranslationText, sanitizeStrategy);\n      } else {\n        return translationId;\n      }\n    };\n\n    /**\n     * @name resolveForFallbackLanguage\n     * @private\n     *\n     * Recursive helper function for fallbackTranslation that will sequentially look\n     * for a translation in the fallbackLanguages starting with fallbackLanguageIndex.\n     *\n     * @param fallbackLanguageIndex\n     * @param translationId\n     * @param interpolateParams\n     * @param Interpolator\n     * @param defaultTranslationText\n     * @param sanitizeStrategy\n     * @returns {Q.promise} Promise that will resolve to the translation.\n     */\n    var resolveForFallbackLanguage = function (fallbackLanguageIndex, translationId, interpolateParams, Interpolator, defaultTranslationText, sanitizeStrategy) {\n      var deferred = $q.defer();\n\n      if (fallbackLanguageIndex < $fallbackLanguage.length) {\n        var langKey = $fallbackLanguage[fallbackLanguageIndex];\n        getFallbackTranslation(langKey, translationId, interpolateParams, Interpolator, sanitizeStrategy).then(\n          function (data) {\n            deferred.resolve(data);\n          },\n          function () {\n            // Look in the next fallback language for a translation.\n            // It delays the resolving by passing another promise to resolve.\n            return resolveForFallbackLanguage(fallbackLanguageIndex + 1, translationId, interpolateParams, Interpolator, defaultTranslationText, sanitizeStrategy).then(deferred.resolve, deferred.reject);\n          }\n        );\n      } else {\n        // No translation found in any fallback language\n        // if a default translation text is set in the directive, then return this as a result\n        if (defaultTranslationText) {\n          deferred.resolve(defaultTranslationText);\n        } else {\n          var missingTranslationHandlerTranslation = translateByHandler(translationId, interpolateParams, defaultTranslationText);\n\n          // if no default translation is set and an error handler is defined, send it to the handler\n          // and then return the result if it isn't undefined\n          if ($missingTranslationHandlerFactory && missingTranslationHandlerTranslation) {\n            deferred.resolve(missingTranslationHandlerTranslation);\n          } else {\n            deferred.reject(applyNotFoundIndicators(translationId));\n          }\n        }\n      }\n      return deferred.promise;\n    };\n\n    /**\n     * @name resolveForFallbackLanguageInstant\n     * @private\n     *\n     * Recursive helper function for fallbackTranslation that will sequentially look\n     * for a translation in the fallbackLanguages starting with fallbackLanguageIndex.\n     *\n     * @param fallbackLanguageIndex\n     * @param translationId\n     * @param interpolateParams\n     * @param Interpolator\n     * @param sanitizeStrategy\n     * @returns {string} translation\n     */\n    var resolveForFallbackLanguageInstant = function (fallbackLanguageIndex, translationId, interpolateParams, Interpolator, sanitizeStrategy) {\n      var result;\n\n      if (fallbackLanguageIndex < $fallbackLanguage.length) {\n        var langKey = $fallbackLanguage[fallbackLanguageIndex];\n        result = getFallbackTranslationInstant(langKey, translationId, interpolateParams, Interpolator, sanitizeStrategy);\n        if (!result && result !== '') {\n          result = resolveForFallbackLanguageInstant(fallbackLanguageIndex + 1, translationId, interpolateParams, Interpolator);\n        }\n      }\n      return result;\n    };\n\n    /**\n     * Translates with the usage of the fallback languages.\n     *\n     * @param translationId\n     * @param interpolateParams\n     * @param Interpolator\n     * @param defaultTranslationText\n     * @param sanitizeStrategy\n     * @returns {Q.promise} Promise, that resolves to the translation.\n     */\n    var fallbackTranslation = function (translationId, interpolateParams, Interpolator, defaultTranslationText, sanitizeStrategy) {\n      // Start with the fallbackLanguage with index 0\n      return resolveForFallbackLanguage((startFallbackIteration > 0 ? startFallbackIteration : fallbackIndex), translationId, interpolateParams, Interpolator, defaultTranslationText, sanitizeStrategy);\n    };\n\n    /**\n     * Translates with the usage of the fallback languages.\n     *\n     * @param translationId\n     * @param interpolateParams\n     * @param Interpolator\n     * @param sanitizeStrategy\n     * @returns {String} translation\n     */\n    var fallbackTranslationInstant = function (translationId, interpolateParams, Interpolator, sanitizeStrategy) {\n      // Start with the fallbackLanguage with index 0\n      return resolveForFallbackLanguageInstant((startFallbackIteration > 0 ? startFallbackIteration : fallbackIndex), translationId, interpolateParams, Interpolator, sanitizeStrategy);\n    };\n\n    var determineTranslation = function (translationId, interpolateParams, interpolationId, defaultTranslationText, uses, sanitizeStrategy) {\n\n      var deferred = $q.defer();\n\n      var table = uses ? $translationTable[uses] : $translationTable,\n        Interpolator = (interpolationId) ? interpolatorHashMap[interpolationId] : defaultInterpolator;\n\n      // if the translation id exists, we can just interpolate it\n      if (table && Object.prototype.hasOwnProperty.call(table, translationId) && table[translationId] !== null) {\n        var translation = table[translationId];\n\n        // If using link, rerun $translate with linked translationId and return it\n        if (translation.substr(0, 2) === '@:') {\n\n          $translate(translation.substr(2), interpolateParams, interpolationId, defaultTranslationText, uses, sanitizeStrategy)\n            .then(deferred.resolve, deferred.reject);\n        } else {\n          //\n          var resolvedTranslation = Interpolator.interpolate(translation, interpolateParams, 'service', sanitizeStrategy, translationId);\n          resolvedTranslation = applyPostProcessing(translationId, translation, resolvedTranslation, interpolateParams, uses);\n          deferred.resolve(resolvedTranslation);\n        }\n      } else {\n        var missingTranslationHandlerTranslation;\n        // for logging purposes only (as in $translateMissingTranslationHandlerLog), value is not returned to promise\n        if ($missingTranslationHandlerFactory && !pendingLoader) {\n          missingTranslationHandlerTranslation = translateByHandler(translationId, interpolateParams, defaultTranslationText);\n        }\n\n        // since we couldn't translate the inital requested translation id,\n        // we try it now with one or more fallback languages, if fallback language(s) is\n        // configured.\n        if (uses && $fallbackLanguage && $fallbackLanguage.length) {\n          fallbackTranslation(translationId, interpolateParams, Interpolator, defaultTranslationText, sanitizeStrategy)\n            .then(function (translation) {\n              deferred.resolve(translation);\n            }, function (_translationId) {\n              deferred.reject(applyNotFoundIndicators(_translationId));\n            });\n        } else if ($missingTranslationHandlerFactory && !pendingLoader && missingTranslationHandlerTranslation) {\n          // looks like the requested translation id doesn't exists.\n          // Now, if there is a registered handler for missing translations and no\n          // asyncLoader is pending, we execute the handler\n          if (defaultTranslationText) {\n            deferred.resolve(defaultTranslationText);\n          } else {\n            deferred.resolve(missingTranslationHandlerTranslation);\n          }\n        } else {\n          if (defaultTranslationText) {\n            deferred.resolve(defaultTranslationText);\n          } else {\n            deferred.reject(applyNotFoundIndicators(translationId));\n          }\n        }\n      }\n      return deferred.promise;\n    };\n\n    var determineTranslationInstant = function (translationId, interpolateParams, interpolationId, uses, sanitizeStrategy) {\n\n      var result, table = uses ? $translationTable[uses] : $translationTable,\n        Interpolator = defaultInterpolator;\n\n      // if the interpolation id exists use custom interpolator\n      if (interpolatorHashMap && Object.prototype.hasOwnProperty.call(interpolatorHashMap, interpolationId)) {\n        Interpolator = interpolatorHashMap[interpolationId];\n      }\n\n      // if the translation id exists, we can just interpolate it\n      if (table && Object.prototype.hasOwnProperty.call(table, translationId) && table[translationId] !== null) {\n        var translation = table[translationId];\n\n        // If using link, rerun $translate with linked translationId and return it\n        if (translation.substr(0, 2) === '@:') {\n          result = determineTranslationInstant(translation.substr(2), interpolateParams, interpolationId, uses, sanitizeStrategy);\n        } else {\n          result = Interpolator.interpolate(translation, interpolateParams, 'filter', sanitizeStrategy, translationId);\n          result = applyPostProcessing(translationId, translation, result, interpolateParams, uses, sanitizeStrategy);\n        }\n      } else {\n        var missingTranslationHandlerTranslation;\n        // for logging purposes only (as in $translateMissingTranslationHandlerLog), value is not returned to promise\n        if ($missingTranslationHandlerFactory && !pendingLoader) {\n          missingTranslationHandlerTranslation = translateByHandler(translationId, interpolateParams, sanitizeStrategy);\n        }\n\n        // since we couldn't translate the inital requested translation id,\n        // we try it now with one or more fallback languages, if fallback language(s) is\n        // configured.\n        if (uses && $fallbackLanguage && $fallbackLanguage.length) {\n          fallbackIndex = 0;\n          result = fallbackTranslationInstant(translationId, interpolateParams, Interpolator, sanitizeStrategy);\n        } else if ($missingTranslationHandlerFactory && !pendingLoader && missingTranslationHandlerTranslation) {\n          // looks like the requested translation id doesn't exists.\n          // Now, if there is a registered handler for missing translations and no\n          // asyncLoader is pending, we execute the handler\n          result = missingTranslationHandlerTranslation;\n        } else {\n          result = applyNotFoundIndicators(translationId);\n        }\n      }\n\n      return result;\n    };\n\n    var clearNextLangAndPromise = function (key) {\n      if ($nextLang === key) {\n        $nextLang = undefined;\n      }\n      langPromises[key] = undefined;\n    };\n\n    var applyPostProcessing = function (translationId, translation, resolvedTranslation, interpolateParams, uses, sanitizeStrategy) {\n      var fn = postProcessFn;\n\n      if (fn) {\n\n        if (typeof(fn) === 'string') {\n          // getting on-demand instance\n          fn = $injector.get(fn);\n        }\n        if (fn) {\n          return fn(translationId, translation, resolvedTranslation, interpolateParams, uses, sanitizeStrategy);\n        }\n      }\n\n      return resolvedTranslation;\n    };\n\n    var loadTranslationsIfMissing = function (key) {\n      if (!$translationTable[key] && $loaderFactory && !langPromises[key]) {\n        langPromises[key] = loadAsync(key).then(function (translation) {\n          translations(translation.key, translation.table);\n          return translation;\n        });\n      }\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#preferredLanguage\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns the language key for the preferred language.\n     *\n     * @param {string} langKey language String or Array to be used as preferredLanguage (changing at runtime)\n     *\n     * @return {string} preferred language key\n     */\n    $translate.preferredLanguage = function (langKey) {\n      if (langKey) {\n        setupPreferredLanguage(langKey);\n      }\n      return $preferredLanguage;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#cloakClassName\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns the configured class name for `translate-cloak` directive.\n     *\n     * @return {string} cloakClassName\n     */\n    $translate.cloakClassName = function () {\n      return $cloakClassName;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#allowNamespaces\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns if namespaces are enabled\n     *\n     * @return {boolean} allowNamespaces value\n     */\n    $translate.allowNamespaces = function () {\n      return $allowNamespaces;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#nestedObjectDelimeter\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns the configured delimiter for nested namespaces.\n     *\n     * @return {string} nestedObjectDelimeter\n     */\n    $translate.nestedObjectDelimeter = function () {\n      return $nestedObjectDelimeter;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#fallbackLanguage\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns the language key for the fallback languages or sets a new fallback stack.\n     * It is recommended to call this before {@link pascalprecht.translate.$translateProvider#preferredLanguage preferredLanguage()}.\n     *\n     * @param {string=} langKey language String or Array of fallback languages to be used (to change stack at runtime)\n     *\n     * @return {string||array} fallback language key\n     */\n    $translate.fallbackLanguage = function (langKey) {\n      if (langKey !== undefined && langKey !== null) {\n        fallbackStack(langKey);\n\n        // as we might have an async loader initiated and a new translation language might have been defined\n        // we need to add the promise to the stack also. So - iterate.\n        if ($loaderFactory) {\n          if ($fallbackLanguage && $fallbackLanguage.length) {\n            for (var i = 0, len = $fallbackLanguage.length; i < len; i++) {\n              if (!langPromises[$fallbackLanguage[i]]) {\n                langPromises[$fallbackLanguage[i]] = loadAsync($fallbackLanguage[i]);\n              }\n            }\n          }\n        }\n        $translate.use($translate.use());\n      }\n      if ($fallbackWasString) {\n        return $fallbackLanguage[0];\n      } else {\n        return $fallbackLanguage;\n      }\n\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#useFallbackLanguage\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Sets the first key of the fallback language stack to be used for translation.\n     * Therefore all languages in the fallback array BEFORE this key will be skipped!\n     *\n     * @param {string=} langKey Contains the langKey the iteration shall start with. Set to false if you want to\n     * get back to the whole stack\n     */\n    $translate.useFallbackLanguage = function (langKey) {\n      if (langKey !== undefined && langKey !== null) {\n        if (!langKey) {\n          startFallbackIteration = 0;\n        } else {\n          var langKeyPosition = indexOf($fallbackLanguage, langKey);\n          if (langKeyPosition > -1) {\n            startFallbackIteration = langKeyPosition;\n          }\n        }\n\n      }\n\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#proposedLanguage\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns the language key of language that is currently loaded asynchronously.\n     *\n     * @return {string} language key\n     */\n    $translate.proposedLanguage = function () {\n      return $nextLang;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#storage\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns registered storage.\n     *\n     * @return {object} Storage\n     */\n    $translate.storage = function () {\n      return Storage;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#negotiateLocale\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns a language key based on available languages and language aliases. If a\n     * language key cannot be resolved, returns undefined.\n     *\n     * If no or a falsy key is given, returns undefined.\n     *\n     * @param {string} [key] Language key\n     * @return {string|undefined} Language key or undefined if no language key is found.\n     */\n    $translate.negotiateLocale = negotiateLocale;\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#use\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Tells angular-translate which language to use by given language key. This method is\n     * used to change language at runtime. It also takes care of storing the language\n     * key in a configured store to let your app remember the choosed language.\n     *\n     * When trying to 'use' a language which isn't available it tries to load it\n     * asynchronously with registered loaders.\n     *\n     * Returns promise object with loaded language file data or string of the currently used language.\n     *\n     * If no or a falsy key is given it returns the currently used language key.\n     * The returned string will be ```undefined``` if setting up $translate hasn't finished.\n     * @example\n     * $translate.use(\"en_US\").then(function(data){\n       *   $scope.text = $translate(\"HELLO\");\n       * });\n     *\n     * @param {string=} key Language key\n     * @return {object|string} Promise with loaded language data or the language key if a falsy param was given.\n     */\n    $translate.use = function (key) {\n      if (!key) {\n        return $uses;\n      }\n\n      var deferred = $q.defer();\n      deferred.promise.then(null, angular.noop); // AJS \"Possibly unhandled rejection\"\n\n      $rootScope.$emit('$translateChangeStart', {language : key});\n\n      // Try to get the aliased language key\n      var aliasedKey = negotiateLocale(key);\n      // Ensure only registered language keys will be loaded\n      if ($availableLanguageKeys.length > 0 && !aliasedKey) {\n        return $q.reject(key);\n      }\n\n      if (aliasedKey) {\n        key = aliasedKey;\n      }\n\n      // if there isn't a translation table for the language we've requested,\n      // we load it asynchronously\n      $nextLang = key;\n      if (($forceAsyncReloadEnabled || !$translationTable[key]) && $loaderFactory && !langPromises[key]) {\n        langPromises[key] = loadAsync(key).then(function (translation) {\n          translations(translation.key, translation.table);\n          deferred.resolve(translation.key);\n          if ($nextLang === key) {\n            useLanguage(translation.key);\n          }\n          return translation;\n        }, function (key) {\n          $rootScope.$emit('$translateChangeError', {language : key});\n          deferred.reject(key);\n          $rootScope.$emit('$translateChangeEnd', {language : key});\n          return $q.reject(key);\n        });\n        langPromises[key]['finally'](function () {\n          clearNextLangAndPromise(key);\n        })['catch'](angular.noop); // we don't care about errors (clearing)\n      } else if (langPromises[key]) {\n        // we are already loading this asynchronously\n        // resolve our new deferred when the old langPromise is resolved\n        langPromises[key].then(function (translation) {\n          if ($nextLang === translation.key) {\n            useLanguage(translation.key);\n          }\n          deferred.resolve(translation.key);\n          return translation;\n        }, function (key) {\n          // find first available fallback language if that request has failed\n          if (!$uses && $fallbackLanguage && $fallbackLanguage.length > 0 && $fallbackLanguage[0] !== key) {\n            return $translate.use($fallbackLanguage[0]).then(deferred.resolve, deferred.reject);\n          } else {\n            return deferred.reject(key);\n          }\n        });\n      } else {\n        deferred.resolve(key);\n        useLanguage(key);\n      }\n\n      return deferred.promise;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#resolveClientLocale\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * This returns the current browser/client's language key. The result is processed with the configured uniform tag resolver.\n     *\n     * @returns {string} the current client/browser language key\n     */\n    $translate.resolveClientLocale = function () {\n      return getLocale();\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#storageKey\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns the key for the storage.\n     *\n     * @return {string} storage key\n     */\n    $translate.storageKey = function () {\n      return storageKey();\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#isPostCompilingEnabled\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns whether post compiling is enabled or not\n     *\n     * @return {bool} storage key\n     */\n    $translate.isPostCompilingEnabled = function () {\n      return $postCompilingEnabled;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#isForceAsyncReloadEnabled\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns whether force async reload is enabled or not\n     *\n     * @return {boolean} forceAsyncReload value\n     */\n    $translate.isForceAsyncReloadEnabled = function () {\n      return $forceAsyncReloadEnabled;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#isKeepContent\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns whether keepContent or not\n     *\n     * @return {boolean} keepContent value\n     */\n    $translate.isKeepContent = function () {\n      return $keepContent;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#refresh\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Refreshes a translation table pointed by the given langKey. If langKey is not specified,\n     * the module will drop all existent translation tables and load new version of those which\n     * are currently in use.\n     *\n     * Refresh means that the module will drop target translation table and try to load it again.\n     *\n     * In case there are no loaders registered the refresh() method will throw an Error.\n     *\n     * If the module is able to refresh translation tables refresh() method will broadcast\n     * $translateRefreshStart and $translateRefreshEnd events.\n     *\n     * @example\n     * // this will drop all currently existent translation tables and reload those which are\n     * // currently in use\n     * $translate.refresh();\n     * // this will refresh a translation table for the en_US language\n     * $translate.refresh('en_US');\n     *\n     * @param {string} langKey A language key of the table, which has to be refreshed\n     *\n     * @return {promise} Promise, which will be resolved in case a translation tables refreshing\n     * process is finished successfully, and reject if not.\n     */\n    $translate.refresh = function (langKey) {\n      if (!$loaderFactory) {\n        throw new Error('Couldn\\'t refresh translation table, no loader registered!');\n      }\n\n      $rootScope.$emit('$translateRefreshStart', {language : langKey});\n\n      var deferred = $q.defer(), updatedLanguages = {};\n\n      //private helper\n      function loadNewData(languageKey) {\n        var promise = loadAsync(languageKey);\n        //update the load promise cache for this language\n        langPromises[languageKey] = promise;\n        //register a data handler for the promise\n        promise.then(function (data) {\n            //clear the cache for this language\n            $translationTable[languageKey] = {};\n            //add the new data for this language\n            translations(languageKey, data.table);\n            //track that we updated this language\n            updatedLanguages[languageKey] = true;\n          },\n          //handle rejection to appease the $q validation\n          angular.noop);\n        return promise;\n      }\n\n      //set up post-processing\n      deferred.promise.then(\n        function () {\n          for (var key in $translationTable) {\n            if ($translationTable.hasOwnProperty(key)) {\n              //delete cache entries that were not updated\n              if (!(key in updatedLanguages)) {\n                delete $translationTable[key];\n              }\n            }\n          }\n          if ($uses) {\n            useLanguage($uses);\n          }\n        },\n        //handle rejection to appease the $q validation\n        angular.noop\n      )['finally'](\n        function () {\n          $rootScope.$emit('$translateRefreshEnd', {language : langKey});\n        }\n      );\n\n      if (!langKey) {\n        // if there's no language key specified we refresh ALL THE THINGS!\n        var languagesToReload = $fallbackLanguage && $fallbackLanguage.slice() || [];\n        if ($uses && languagesToReload.indexOf($uses) === -1) {\n          languagesToReload.push($uses);\n        }\n        $q.all(languagesToReload.map(loadNewData)).then(deferred.resolve, deferred.reject);\n\n      } else if ($translationTable[langKey]) {\n        //just refresh the specified language cache\n        loadNewData(langKey).then(deferred.resolve, deferred.reject);\n\n      } else {\n        deferred.reject();\n      }\n\n      return deferred.promise;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#instant\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns a translation instantly from the internal state of loaded translation. All rules\n     * regarding the current language, the preferred language of even fallback languages will be\n     * used except any promise handling. If a language was not found, an asynchronous loading\n     * will be invoked in the background.\n     *\n     * @param {string|array} translationId A token which represents a translation id\n     *                                     This can be optionally an array of translation ids which\n     *                                     results that the function's promise returns an object where\n     *                                     each key is the translation id and the value the translation.\n     * @param {object=} [interpolateParams={}] Params\n     * @param {string=} [interpolationId=undefined] The id of the interpolation to use (use default unless set via useInterpolation())\n     * @param {string=} [forceLanguage=false] A language to be used instead of the current language\n     * @param {string=} [sanitizeStrategy=undefined] force sanitize strategy for this call instead of using the configured one (use default unless set)\n     *\n     * @return {string|object} translation\n     */\n    $translate.instant = function (translationId, interpolateParams, interpolationId, forceLanguage, sanitizeStrategy) {\n\n      // we don't want to re-negotiate $uses\n      var uses = (forceLanguage && forceLanguage !== $uses) ? // we don't want to re-negotiate $uses\n        (negotiateLocale(forceLanguage) || forceLanguage) : $uses;\n\n      // Detect undefined and null values to shorten the execution and prevent exceptions\n      if (translationId === null || angular.isUndefined(translationId)) {\n        return translationId;\n      }\n\n      // Check forceLanguage is present\n      if (forceLanguage) {\n        loadTranslationsIfMissing(forceLanguage);\n      }\n\n      // Duck detection: If the first argument is an array, a bunch of translations was requested.\n      // The result is an object.\n      if (angular.isArray(translationId)) {\n        var results = {};\n        for (var i = 0, c = translationId.length; i < c; i++) {\n          results[translationId[i]] = $translate.instant(translationId[i], interpolateParams, interpolationId, forceLanguage, sanitizeStrategy);\n        }\n        return results;\n      }\n\n      // We discarded unacceptable values. So we just need to verify if translationId is empty String\n      if (angular.isString(translationId) && translationId.length < 1) {\n        return translationId;\n      }\n\n      // trim off any whitespace\n      if (translationId) {\n        translationId = trim.apply(translationId);\n      }\n\n      var result, possibleLangKeys = [];\n      if ($preferredLanguage) {\n        possibleLangKeys.push($preferredLanguage);\n      }\n      if (uses) {\n        possibleLangKeys.push(uses);\n      }\n      if ($fallbackLanguage && $fallbackLanguage.length) {\n        possibleLangKeys = possibleLangKeys.concat($fallbackLanguage);\n      }\n      for (var j = 0, d = possibleLangKeys.length; j < d; j++) {\n        var possibleLangKey = possibleLangKeys[j];\n        if ($translationTable[possibleLangKey]) {\n          if (typeof $translationTable[possibleLangKey][translationId] !== 'undefined') {\n            result = determineTranslationInstant(translationId, interpolateParams, interpolationId, uses, sanitizeStrategy);\n          }\n        }\n        if (typeof result !== 'undefined') {\n          break;\n        }\n      }\n\n      if (!result && result !== '') {\n        if ($notFoundIndicatorLeft || $notFoundIndicatorRight) {\n          result = applyNotFoundIndicators(translationId);\n        } else {\n          // Return translation of default interpolator if not found anything.\n          result = defaultInterpolator.interpolate(translationId, interpolateParams, 'filter', sanitizeStrategy);\n\n          // looks like the requested translation id doesn't exists.\n          // Now, if there is a registered handler for missing translations and no\n          // asyncLoader is pending, we execute the handler\n          var missingTranslationHandlerTranslation;\n          if ($missingTranslationHandlerFactory && !pendingLoader) {\n            missingTranslationHandlerTranslation = translateByHandler(translationId, interpolateParams, sanitizeStrategy);\n          }\n\n          if ($missingTranslationHandlerFactory && !pendingLoader && missingTranslationHandlerTranslation) {\n            result = missingTranslationHandlerTranslation;\n          }\n        }\n      }\n\n      return result;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#versionInfo\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns the current version information for the angular-translate library\n     *\n     * @return {string} angular-translate version\n     */\n    $translate.versionInfo = function () {\n      return version;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#loaderCache\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns the defined loaderCache.\n     *\n     * @return {boolean|string|object} current value of loaderCache\n     */\n    $translate.loaderCache = function () {\n      return loaderCache;\n    };\n\n    // internal purpose only\n    $translate.directivePriority = function () {\n      return directivePriority;\n    };\n\n    // internal purpose only\n    $translate.statefulFilter = function () {\n      return statefulFilter;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#isReady\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns whether the service is \"ready\" to translate (i.e. loading 1st language).\n     *\n     * See also {@link pascalprecht.translate.$translate#methods_onReady onReady()}.\n     *\n     * @return {boolean} current value of ready\n     */\n    $translate.isReady = function () {\n      return $isReady;\n    };\n\n    var $onReadyDeferred = $q.defer();\n    $onReadyDeferred.promise.then(function () {\n      $isReady = true;\n    });\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#onReady\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Calls the function provided or resolved the returned promise after the service is \"ready\" to translate (i.e. loading 1st language).\n     *\n     * See also {@link pascalprecht.translate.$translate#methods_isReady isReady()}.\n     *\n     * @param {Function=} fn Function to invoke when service is ready\n     * @return {object} Promise resolved when service is ready\n     */\n    $translate.onReady = function (fn) {\n      var deferred = $q.defer();\n      if (angular.isFunction(fn)) {\n        deferred.promise.then(fn);\n      }\n      if ($isReady) {\n        deferred.resolve();\n      } else {\n        $onReadyDeferred.promise.then(deferred.resolve);\n      }\n      return deferred.promise;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#getAvailableLanguageKeys\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * This function simply returns the registered language keys being defined before in the config phase\n     * With this, an application can use the array to provide a language selection dropdown or similar\n     * without any additional effort\n     *\n     * @returns {object} returns the list of possibly registered language keys and mapping or null if not defined\n     */\n    $translate.getAvailableLanguageKeys = function () {\n      if ($availableLanguageKeys.length > 0) {\n        return $availableLanguageKeys;\n      }\n      return null;\n    };\n\n    /**\n     * @ngdoc function\n     * @name pascalprecht.translate.$translate#getTranslationTable\n     * @methodOf pascalprecht.translate.$translate\n     *\n     * @description\n     * Returns translation table by the given language key.\n     *\n     * Unless a language is provided it returns a translation table of the current one.\n     * Note: If translation dictionary is currently downloading or in progress\n     * it will return null.\n     *\n     * @param {string} langKey A token which represents a translation id\n     *\n     * @return {object} a copy of angular-translate $translationTable\n     */\n    $translate.getTranslationTable = function (langKey) {\n      langKey = langKey || $translate.use();\n      if (langKey && $translationTable[langKey]) {\n        return angular.copy($translationTable[langKey]);\n      }\n      return null;\n    };\n\n    // Whenever $translateReady is being fired, this will ensure the state of $isReady\n    var globalOnReadyListener = $rootScope.$on('$translateReady', function () {\n      $onReadyDeferred.resolve();\n      globalOnReadyListener(); // one time only\n      globalOnReadyListener = null;\n    });\n    var globalOnChangeListener = $rootScope.$on('$translateChangeEnd', function () {\n      $onReadyDeferred.resolve();\n      globalOnChangeListener(); // one time only\n      globalOnChangeListener = null;\n    });\n\n    if ($loaderFactory) {\n\n      // If at least one async loader is defined and there are no\n      // (default) translations available we should try to load them.\n      if (angular.equals($translationTable, {})) {\n        if ($translate.use()) {\n          $translate.use($translate.use());\n        }\n      }\n\n      // Also, if there are any fallback language registered, we start\n      // loading them asynchronously as soon as we can.\n      if ($fallbackLanguage && $fallbackLanguage.length) {\n        var processAsyncResult = function (translation) {\n          translations(translation.key, translation.table);\n          $rootScope.$emit('$translateChangeEnd', {language : translation.key});\n          return translation;\n        };\n        for (var i = 0, len = $fallbackLanguage.length; i < len; i++) {\n          var fallbackLanguageId = $fallbackLanguage[i];\n          if ($forceAsyncReloadEnabled || !$translationTable[fallbackLanguageId]) {\n            langPromises[fallbackLanguageId] = loadAsync(fallbackLanguageId).then(processAsyncResult);\n          }\n        }\n      }\n    } else {\n      $rootScope.$emit('$translateReady', {language : $translate.use()});\n    }\n\n    return $translate;\n  }];\n}\n\n$translate.displayName = 'displayName';\n\n/**\n * @ngdoc object\n * @name pascalprecht.translate.$translateDefaultInterpolation\n * @requires $interpolate\n *\n * @description\n * Uses angular's `$interpolate` services to interpolate strings against some values.\n *\n * Be aware to configure a proper sanitization strategy.\n *\n * See also:\n * * {@link pascalprecht.translate.$translateSanitization}\n *\n * @return {object} $translateDefaultInterpolation Interpolator service\n */\nangular.module('pascalprecht.translate').factory('$translateDefaultInterpolation', $translateDefaultInterpolation);\n\nfunction $translateDefaultInterpolation ($interpolate, $translateSanitization) {\n\n  'use strict';\n\n  var $translateInterpolator = {},\n      $locale,\n      $identifier = 'default';\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateDefaultInterpolation#setLocale\n   * @methodOf pascalprecht.translate.$translateDefaultInterpolation\n   *\n   * @description\n   * Sets current locale (this is currently not use in this interpolation).\n   *\n   * @param {string} locale Language key or locale.\n   */\n  $translateInterpolator.setLocale = function (locale) {\n    $locale = locale;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateDefaultInterpolation#getInterpolationIdentifier\n   * @methodOf pascalprecht.translate.$translateDefaultInterpolation\n   *\n   * @description\n   * Returns an identifier for this interpolation service.\n   *\n   * @returns {string} $identifier\n   */\n  $translateInterpolator.getInterpolationIdentifier = function () {\n    return $identifier;\n  };\n\n  /**\n   * @deprecated will be removed in 3.0\n   * @see {@link pascalprecht.translate.$translateSanitization}\n   */\n  $translateInterpolator.useSanitizeValueStrategy = function (value) {\n    $translateSanitization.useStrategy(value);\n    return this;\n  };\n\n  /**\n   * @ngdoc function\n   * @name pascalprecht.translate.$translateDefaultInterpolation#interpolate\n   * @methodOf pascalprecht.translate.$translateDefaultInterpolation\n   *\n   * @description\n   * Interpolates given value agains given interpolate params using angulars\n   * `$interpolate` service.\n   *\n   * Since AngularJS 1.5, `value` must not be a string but can be anything input.\n   *\n   * @param {string} value translation\n   * @param {object} [interpolationParams={}] interpolation params\n   * @param {string} [context=undefined] current context (filter, directive, service)\n   * @param {string} [sanitizeStrategy=undefined] sanitize strategy (use default unless set)\n   * @param {string} translationId current translationId\n   *\n   * @returns {string} interpolated string\n   */\n  $translateInterpolator.interpolate = function (value, interpolationParams, context, sanitizeStrategy, translationId) { // jshint ignore:line\n    interpolationParams = interpolationParams || {};\n    interpolationParams = $translateSanitization.sanitize(interpolationParams, 'params', sanitizeStrategy, context);\n\n    var interpolatedText;\n    if (angular.isNumber(value)) {\n      // numbers are safe\n      interpolatedText = '' + value;\n    } else if (angular.isString(value)) {\n      // strings must be interpolated (that's the job here)\n      interpolatedText = $interpolate(value)(interpolationParams);\n      interpolatedText = $translateSanitization.sanitize(interpolatedText, 'text', sanitizeStrategy, context);\n    } else {\n      // neither a number or a string, cant interpolate => empty string\n      interpolatedText = '';\n    }\n\n    return interpolatedText;\n  };\n\n  return $translateInterpolator;\n}\n\n$translateDefaultInterpolation.displayName = '$translateDefaultInterpolation';\n\nangular.module('pascalprecht.translate').constant('$STORAGE_KEY', 'NG_TRANSLATE_LANG_KEY');\n\nangular.module('pascalprecht.translate')\n/**\n * @ngdoc directive\n * @name pascalprecht.translate.directive:translate\n * @requires $interpolate,\n * @requires $compile,\n * @requires $parse,\n * @requires $rootScope\n * @restrict AE\n *\n * @description\n * Translates given translation id either through attribute or DOM content.\n * Internally it uses $translate service to translate the translation id. It possible to\n * pass an optional `translate-values` object literal as string into translation id.\n *\n * @param {string=} translate Translation id which could be either string or interpolated string.\n * @param {string=} translate-values Values to pass into translation id. Can be passed as object literal string or interpolated object.\n * @param {string=} translate-attr-ATTR translate Translation id and put it into ATTR attribute.\n * @param {string=} translate-default will be used unless translation was successful\n * @param {string=} translate-sanitize-strategy defines locally sanitize strategy\n * @param {boolean=} translate-compile (default true if present) defines locally activation of {@link pascalprecht.translate.$translateProvider#methods_usePostCompiling}\n * @param {boolean=} translate-keep-content (default true if present) defines that in case a KEY could not be translated, that the existing content is left in the innerHTML}\n *\n * @example\n   <example module=\"ngView\">\n    <file name=\"index.html\">\n      <div ng-controller=\"TranslateCtrl\">\n\n        <pre translate=\"TRANSLATION_ID\"></pre>\n        <pre translate>TRANSLATION_ID</pre>\n        <pre translate translate-attr-title=\"TRANSLATION_ID\"></pre>\n        <pre translate=\"{{translationId}}\"></pre>\n        <pre translate>{{translationId}}</pre>\n        <pre translate=\"WITH_VALUES\" translate-values=\"{value: 5}\"></pre>\n        <pre translate translate-values=\"{value: 5}\">WITH_VALUES</pre>\n        <pre translate=\"WITH_VALUES\" translate-values=\"{{values}}\"></pre>\n        <pre translate translate-values=\"{{values}}\">WITH_VALUES</pre>\n        <pre translate translate-attr-title=\"WITH_VALUES\" translate-values=\"{{values}}\"></pre>\n        <pre translate=\"WITH_CAMEL_CASE_KEY\" translate-value-camel-case-key=\"Hi\"></pre>\n\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngView', ['pascalprecht.translate'])\n\n      .config(function ($translateProvider) {\n\n        $translateProvider.translations('en',{\n          'TRANSLATION_ID': 'Hello there!',\n          'WITH_VALUES': 'The following value is dynamic: {{value}}',\n          'WITH_CAMEL_CASE_KEY': 'The interpolation key is camel cased: {{camelCaseKey}}'\n        }).preferredLanguage('en');\n\n      });\n\n      angular.module('ngView').controller('TranslateCtrl', function ($scope) {\n        $scope.translationId = 'TRANSLATION_ID';\n\n        $scope.values = {\n          value: 78\n        };\n      });\n    </file>\n    <file name=\"scenario.js\">\n      it('should translate', function () {\n        inject(function ($rootScope, $compile) {\n          $rootScope.translationId = 'TRANSLATION_ID';\n\n          element = $compile('<p translate=\"TRANSLATION_ID\"></p>')($rootScope);\n          $rootScope.$digest();\n          expect(element.text()).toBe('Hello there!');\n\n          element = $compile('<p translate=\"{{translationId}}\"></p>')($rootScope);\n          $rootScope.$digest();\n          expect(element.text()).toBe('Hello there!');\n\n          element = $compile('<p translate>TRANSLATION_ID</p>')($rootScope);\n          $rootScope.$digest();\n          expect(element.text()).toBe('Hello there!');\n\n          element = $compile('<p translate>{{translationId}}</p>')($rootScope);\n          $rootScope.$digest();\n          expect(element.text()).toBe('Hello there!');\n\n          element = $compile('<p translate translate-attr-title=\"TRANSLATION_ID\"></p>')($rootScope);\n          $rootScope.$digest();\n          expect(element.attr('title')).toBe('Hello there!');\n\n          element = $compile('<p translate=\"WITH_CAMEL_CASE_KEY\" translate-value-camel-case-key=\"Hello\"></p>')($rootScope);\n          $rootScope.$digest();\n          expect(element.text()).toBe('The interpolation key is camel cased: Hello');\n        });\n      });\n    </file>\n   </example>\n */\n.directive('translate', translateDirective);\nfunction translateDirective($translate, $interpolate, $compile, $parse, $rootScope) {\n\n  'use strict';\n\n  /**\n   * @name trim\n   * @private\n   *\n   * @description\n   * trim polyfill\n   *\n   * @returns {string} The string stripped of whitespace from both ends\n   */\n  var trim = function() {\n    return this.toString().replace(/^\\s+|\\s+$/g, '');\n  };\n\n  /**\n   * @name lowercase\n   * @private\n   *\n   * @description\n   * Return the lowercase string only if the type is string\n   *\n   * @returns {string} The string all in lowercase\n   */\n  var lowercase = function (string) {\n    return angular.isString(string) ? string.toLowerCase() : string;\n  };\n\n  return {\n    restrict: 'AE',\n    scope: true,\n    priority: $translate.directivePriority(),\n    compile: function (tElement, tAttr) {\n\n      var translateValuesExist = (tAttr.translateValues) ?\n        tAttr.translateValues : undefined;\n\n      var translateInterpolation = (tAttr.translateInterpolation) ?\n        tAttr.translateInterpolation : undefined;\n\n      var translateSanitizeStrategyExist = (tAttr.translateSanitizeStrategy) ?\n        tAttr.translateSanitizeStrategy : undefined;\n\n      var translateValueExist = tElement[0].outerHTML.match(/translate-value-+/i);\n\n      var interpolateRegExp = '^(.*)(' + $interpolate.startSymbol() + '.*' + $interpolate.endSymbol() + ')(.*)',\n          watcherRegExp = '^(.*)' + $interpolate.startSymbol() + '(.*)' + $interpolate.endSymbol() + '(.*)';\n\n      return function linkFn(scope, iElement, iAttr) {\n\n        scope.interpolateParams = {};\n        scope.preText = '';\n        scope.postText = '';\n        scope.translateNamespace = getTranslateNamespace(scope);\n        var translationIds = {};\n\n        var initInterpolationParams = function (interpolateParams, iAttr, tAttr) {\n          // initial setup\n          if (iAttr.translateValues) {\n            angular.extend(interpolateParams, $parse(iAttr.translateValues)(scope.$parent));\n          }\n          // initially fetch all attributes if existing and fill the params\n          if (translateValueExist) {\n            for (var attr in tAttr) {\n              if (Object.prototype.hasOwnProperty.call(iAttr, attr) && attr.substr(0, 14) === 'translateValue' && attr !== 'translateValues') {\n                var attributeName = lowercase(attr.substr(14, 1)) + attr.substr(15);\n                interpolateParams[attributeName] = tAttr[attr];\n              }\n            }\n          }\n        };\n\n        // Ensures any change of the attribute \"translate\" containing the id will\n        // be re-stored to the scope's \"translationId\".\n        // If the attribute has no content, the element's text value (white spaces trimmed off) will be used.\n        var observeElementTranslation = function (translationId) {\n\n          // Remove any old watcher\n          if (angular.isFunction(observeElementTranslation._unwatchOld)) {\n            observeElementTranslation._unwatchOld();\n            observeElementTranslation._unwatchOld = undefined;\n          }\n\n          if (angular.equals(translationId , '') || !angular.isDefined(translationId)) {\n            var iElementText = trim.apply(iElement.text()).replace(/\\n/g, ' ');\n\n            // Resolve translation id by inner html if required\n            var interpolateMatches = iElementText.match(interpolateRegExp);\n            // Interpolate translation id if required\n            if (angular.isArray(interpolateMatches)) {\n              scope.preText = interpolateMatches[1];\n              scope.postText = interpolateMatches[3];\n              translationIds.translate = $interpolate(interpolateMatches[2])(scope.$parent);\n              var watcherMatches = iElementText.match(watcherRegExp);\n              if (angular.isArray(watcherMatches) && watcherMatches[2] && watcherMatches[2].length) {\n                observeElementTranslation._unwatchOld = scope.$watch(watcherMatches[2], function (newValue) {\n                  translationIds.translate = newValue;\n                  updateTranslations();\n                });\n              }\n            } else {\n              // do not assigne the translation id if it is empty.\n              translationIds.translate = !iElementText ? undefined : iElementText;\n            }\n          } else {\n            translationIds.translate = translationId;\n          }\n          updateTranslations();\n        };\n\n        var observeAttributeTranslation = function (translateAttr) {\n          iAttr.$observe(translateAttr, function (translationId) {\n            translationIds[translateAttr] = translationId;\n            updateTranslations();\n          });\n        };\n\n        // initial setup with values\n        initInterpolationParams(scope.interpolateParams, iAttr, tAttr);\n\n        var firstAttributeChangedEvent = true;\n        iAttr.$observe('translate', function (translationId) {\n          if (typeof translationId === 'undefined') {\n            // case of element \"<translate>xyz</translate>\"\n            observeElementTranslation('');\n          } else {\n            // case of regular attribute\n            if (translationId !== '' || !firstAttributeChangedEvent) {\n              translationIds.translate = translationId;\n              updateTranslations();\n            }\n          }\n          firstAttributeChangedEvent = false;\n        });\n\n        for (var translateAttr in iAttr) {\n          if (iAttr.hasOwnProperty(translateAttr) && translateAttr.substr(0, 13) === 'translateAttr' && translateAttr.length > 13) {\n            observeAttributeTranslation(translateAttr);\n          }\n        }\n\n        iAttr.$observe('translateDefault', function (value) {\n          scope.defaultText = value;\n          updateTranslations();\n        });\n\n        if (translateSanitizeStrategyExist) {\n          iAttr.$observe('translateSanitizeStrategy', function (value) {\n            scope.sanitizeStrategy = $parse(value)(scope.$parent);\n            updateTranslations();\n          });\n        }\n\n        if (translateValuesExist) {\n          iAttr.$observe('translateValues', function (interpolateParams) {\n            if (interpolateParams) {\n              scope.$parent.$watch(function () {\n                angular.extend(scope.interpolateParams, $parse(interpolateParams)(scope.$parent));\n              });\n            }\n          });\n        }\n\n        if (translateValueExist) {\n          var observeValueAttribute = function (attrName) {\n            iAttr.$observe(attrName, function (value) {\n              var attributeName = lowercase(attrName.substr(14, 1)) + attrName.substr(15);\n              scope.interpolateParams[attributeName] = value;\n            });\n          };\n          for (var attr in iAttr) {\n            if (Object.prototype.hasOwnProperty.call(iAttr, attr) && attr.substr(0, 14) === 'translateValue' && attr !== 'translateValues') {\n              observeValueAttribute(attr);\n            }\n          }\n        }\n\n        // Master update function\n        var updateTranslations = function () {\n          for (var key in translationIds) {\n            if (translationIds.hasOwnProperty(key) && translationIds[key] !== undefined) {\n              updateTranslation(key, translationIds[key], scope, scope.interpolateParams, scope.defaultText, scope.translateNamespace);\n            }\n          }\n        };\n\n        // Put translation processing function outside loop\n        var updateTranslation = function(translateAttr, translationId, scope, interpolateParams, defaultTranslationText, translateNamespace) {\n          if (translationId) {\n            // if translation id starts with '.' and translateNamespace given, prepend namespace\n            if (translateNamespace && translationId.charAt(0) === '.') {\n              translationId = translateNamespace + translationId;\n            }\n\n            $translate(translationId, interpolateParams, translateInterpolation, defaultTranslationText, scope.translateLanguage, scope.sanitizeStrategy)\n              .then(function (translation) {\n                applyTranslation(translation, scope, true, translateAttr);\n              }, function (translationId) {\n                applyTranslation(translationId, scope, false, translateAttr);\n              });\n          } else {\n            // as an empty string cannot be translated, we can solve this using successful=false\n            applyTranslation(translationId, scope, false, translateAttr);\n          }\n        };\n\n        var applyTranslation = function (value, scope, successful, translateAttr) {\n          if (!successful) {\n            if (typeof scope.defaultText !== 'undefined') {\n              value = scope.defaultText;\n            }\n          }\n          if (translateAttr === 'translate') {\n            // default translate into innerHTML\n            if (successful || (!successful && !$translate.isKeepContent() && typeof iAttr.translateKeepContent === 'undefined')) {\n              iElement.empty().append(scope.preText + value + scope.postText);\n            }\n            var globallyEnabled = $translate.isPostCompilingEnabled();\n            var locallyDefined = typeof tAttr.translateCompile !== 'undefined';\n            var locallyEnabled = locallyDefined && tAttr.translateCompile !== 'false';\n            if ((globallyEnabled && !locallyDefined) || locallyEnabled) {\n              $compile(iElement.contents())(scope);\n            }\n          } else {\n            // translate attribute\n            var attributeName = iAttr.$attr[translateAttr];\n            if (attributeName.substr(0, 5) === 'data-') {\n              // ensure html5 data prefix is stripped\n              attributeName = attributeName.substr(5);\n            }\n            attributeName = attributeName.substr(15);\n            iElement.attr(attributeName, value);\n          }\n        };\n\n        if (translateValuesExist || translateValueExist || iAttr.translateDefault) {\n          scope.$watch('interpolateParams', updateTranslations, true);\n        }\n\n        // Replaced watcher on translateLanguage with event listener\n        scope.$on('translateLanguageChanged', updateTranslations);\n\n        // Ensures the text will be refreshed after the current language was changed\n        // w/ $translate.use(...)\n        var unbind = $rootScope.$on('$translateChangeSuccess', updateTranslations);\n\n        // ensure translation will be looked up at least one\n        if (iElement.text().length) {\n          if (iAttr.translate) {\n            observeElementTranslation(iAttr.translate);\n          } else {\n            observeElementTranslation('');\n          }\n        } else if (iAttr.translate) {\n          // ensure attribute will be not skipped\n          observeElementTranslation(iAttr.translate);\n        }\n        updateTranslations();\n        scope.$on('$destroy', unbind);\n      };\n    }\n  };\n}\n\n/**\n * Returns the scope's namespace.\n * @private\n * @param scope\n * @returns {string}\n */\nfunction getTranslateNamespace(scope) {\n  'use strict';\n  if (scope.translateNamespace) {\n    return scope.translateNamespace;\n  }\n  if (scope.$parent) {\n    return getTranslateNamespace(scope.$parent);\n  }\n}\n\ntranslateDirective.displayName = 'translateDirective';\n\nangular.module('pascalprecht.translate')\n/**\n * @ngdoc directive\n * @name pascalprecht.translate.directive:translate-attr\n * @restrict A\n *\n * @description\n * Translates attributes like translate-attr-ATTR, but with an object like ng-class.\n * Internally it uses `translate` service to translate translation id. It possible to\n * pass an optional `translate-values` object literal as string into translation id.\n *\n * @param {string=} translate-attr Object literal mapping attributes to translation ids.\n * @param {string=} translate-values Values to pass into the translation ids. Can be passed as object literal string.\n * @param {string=} translate-sanitize-strategy defines locally sanitize strategy\n *\n * @example\n   <example module=\"ngView\">\n    <file name=\"index.html\">\n      <div ng-controller=\"TranslateCtrl\">\n\n        <input translate-attr=\"{ placeholder: translationId, title: 'WITH_VALUES' }\" translate-values=\"{value: 5}\" />\n\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngView', ['pascalprecht.translate'])\n\n      .config(function ($translateProvider) {\n\n        $translateProvider.translations('en',{\n          'TRANSLATION_ID': 'Hello there!',\n          'WITH_VALUES': 'The following value is dynamic: {{value}}',\n        }).preferredLanguage('en');\n\n      });\n\n      angular.module('ngView').controller('TranslateCtrl', function ($scope) {\n        $scope.translationId = 'TRANSLATION_ID';\n\n        $scope.values = {\n          value: 78\n        };\n      });\n    </file>\n    <file name=\"scenario.js\">\n      it('should translate', function () {\n        inject(function ($rootScope, $compile) {\n          $rootScope.translationId = 'TRANSLATION_ID';\n\n          element = $compile('<input translate-attr=\"{ placeholder: translationId, title: 'WITH_VALUES' }\" translate-values=\"{ value: 5 }\" />')($rootScope);\n          $rootScope.$digest();\n          expect(element.attr('placeholder)).toBe('Hello there!');\n          expect(element.attr('title)).toBe('The following value is dynamic: 5');\n        });\n      });\n    </file>\n   </example>\n */\n.directive('translateAttr', translateAttrDirective);\nfunction translateAttrDirective($translate, $rootScope) {\n\n  'use strict';\n\n  return {\n    restrict: 'A',\n    priority: $translate.directivePriority(),\n    link: function linkFn(scope, element, attr) {\n\n      var translateAttr,\n          translateValues,\n          translateSanitizeStrategy,\n          previousAttributes = {};\n\n      // Main update translations function\n      var updateTranslations = function () {\n        angular.forEach(translateAttr, function (translationId, attributeName) {\n          if (!translationId) {\n            return;\n          }\n          previousAttributes[attributeName] = true;\n\n          // if translation id starts with '.' and translateNamespace given, prepend namespace\n          if (scope.translateNamespace && translationId.charAt(0) === '.') {\n            translationId = scope.translateNamespace + translationId;\n          }\n          $translate(translationId, translateValues, attr.translateInterpolation, undefined, scope.translateLanguage, translateSanitizeStrategy)\n            .then(function (translation) {\n              element.attr(attributeName, translation);\n            }, function (translationId) {\n              element.attr(attributeName, translationId);\n            });\n        });\n\n        // Removing unused attributes that were previously used\n        angular.forEach(previousAttributes, function (flag, attributeName) {\n          if (!translateAttr[attributeName]) {\n            element.removeAttr(attributeName);\n            delete previousAttributes[attributeName];\n          }\n        });\n      };\n\n      // Watch for attribute changes\n      watchAttribute(\n        scope,\n        attr.translateAttr,\n        function (newValue) { translateAttr = newValue; },\n        updateTranslations\n      );\n      // Watch for value changes\n      watchAttribute(\n        scope,\n        attr.translateValues,\n        function (newValue) { translateValues = newValue; },\n        updateTranslations\n      );\n      // Watch for sanitize strategy changes\n      watchAttribute(\n        scope,\n        attr.translateSanitizeStrategy,\n        function (newValue) { translateSanitizeStrategy = newValue; },\n        updateTranslations\n      );\n\n      if (attr.translateValues) {\n        scope.$watch(attr.translateValues, updateTranslations, true);\n      }\n\n      // Replaced watcher on translateLanguage with event listener\n      scope.$on('translateLanguageChanged', updateTranslations);\n\n      // Ensures the text will be refreshed after the current language was changed\n      // w/ $translate.use(...)\n      var unbind = $rootScope.$on('$translateChangeSuccess', updateTranslations);\n\n      updateTranslations();\n      scope.$on('$destroy', unbind);\n    }\n  };\n}\n\nfunction watchAttribute(scope, attribute, valueCallback, changeCallback) {\n  'use strict';\n  if (!attribute) {\n    return;\n  }\n  if (attribute.substr(0, 2) === '::') {\n    attribute = attribute.substr(2);\n  } else {\n    scope.$watch(attribute, function(newValue) {\n      valueCallback(newValue);\n      changeCallback();\n    }, true);\n  }\n  valueCallback(scope.$eval(attribute));\n}\n\ntranslateAttrDirective.displayName = 'translateAttrDirective';\n\nangular.module('pascalprecht.translate')\n/**\n * @ngdoc directive\n * @name pascalprecht.translate.directive:translateCloak\n * @requires $translate\n * @restrict A\n *\n * $description\n * Adds a `translate-cloak` class name to the given element where this directive\n * is applied initially and removes it, once a loader has finished loading.\n *\n * This directive can be used to prevent initial flickering when loading translation\n * data asynchronously.\n *\n * The class name is defined in\n * {@link pascalprecht.translate.$translateProvider#cloakClassName $translate.cloakClassName()}.\n *\n * @param {string=} translate-cloak If a translationId is provided, it will be used for showing\n *                                  or hiding the cloak. Basically it relies on the translation\n *                                  resolve.\n */\n.directive('translateCloak', translateCloakDirective);\n\nfunction translateCloakDirective($translate, $rootScope) {\n\n  'use strict';\n\n  return {\n    compile : function (tElement) {\n      var applyCloak = function (element) {\n          element.addClass($translate.cloakClassName());\n        },\n        removeCloak = function (element) {\n          element.removeClass($translate.cloakClassName());\n        };\n      applyCloak(tElement);\n\n      return function linkFn(scope, iElement, iAttr) {\n        //Create bound functions that incorporate the active DOM element.\n        var iRemoveCloak = removeCloak.bind(this, iElement), iApplyCloak = applyCloak.bind(this, iElement);\n        if (iAttr.translateCloak && iAttr.translateCloak.length) {\n          // Register a watcher for the defined translation allowing a fine tuned cloak\n          iAttr.$observe('translateCloak', function (translationId) {\n            $translate(translationId).then(iRemoveCloak, iApplyCloak);\n          });\n          $rootScope.$on('$translateChangeSuccess', function () {\n            $translate(iAttr.translateCloak).then(iRemoveCloak, iApplyCloak);\n          });\n        } else {\n          $translate.onReady(iRemoveCloak);\n        }\n      };\n    }\n  };\n}\n\ntranslateCloakDirective.displayName = 'translateCloakDirective';\n\nangular.module('pascalprecht.translate')\n/**\n * @ngdoc directive\n * @name pascalprecht.translate.directive:translateNamespace\n * @restrict A\n *\n * @description\n * Translates given translation id either through attribute or DOM content.\n * Internally it uses `translate` filter to translate translation id. It is possible to\n * pass an optional `translate-values` object literal as string into translation id.\n *\n * @param {string=} translate namespace name which could be either string or interpolated string.\n *\n * @example\n   <example module=\"ngView\">\n    <file name=\"index.html\">\n      <div translate-namespace=\"CONTENT\">\n\n        <div>\n            <h1 translate>.HEADERS.TITLE</h1>\n            <h1 translate>.HEADERS.WELCOME</h1>\n        </div>\n\n        <div translate-namespace=\".HEADERS\">\n            <h1 translate>.TITLE</h1>\n            <h1 translate>.WELCOME</h1>\n        </div>\n\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngView', ['pascalprecht.translate'])\n\n      .config(function ($translateProvider) {\n\n        $translateProvider.translations('en',{\n          'TRANSLATION_ID': 'Hello there!',\n          'CONTENT': {\n            'HEADERS': {\n                TITLE: 'Title'\n            }\n          },\n          'CONTENT.HEADERS.WELCOME': 'Welcome'\n        }).preferredLanguage('en');\n\n      });\n\n    </file>\n   </example>\n */\n.directive('translateNamespace', translateNamespaceDirective);\n\nfunction translateNamespaceDirective() {\n\n  'use strict';\n\n  return {\n    restrict: 'A',\n    scope: true,\n    compile: function () {\n      return {\n        pre: function (scope, iElement, iAttrs) {\n          scope.translateNamespace = _getTranslateNamespace(scope);\n\n          if (scope.translateNamespace && iAttrs.translateNamespace.charAt(0) === '.') {\n            scope.translateNamespace += iAttrs.translateNamespace;\n          } else {\n            scope.translateNamespace = iAttrs.translateNamespace;\n          }\n        }\n      };\n    }\n  };\n}\n\n/**\n * Returns the scope's namespace.\n * @private\n * @param scope\n * @returns {string}\n */\nfunction _getTranslateNamespace(scope) {\n  'use strict';\n  if (scope.translateNamespace) {\n    return scope.translateNamespace;\n  }\n  if (scope.$parent) {\n    return _getTranslateNamespace(scope.$parent);\n  }\n}\n\ntranslateNamespaceDirective.displayName = 'translateNamespaceDirective';\n\nangular.module('pascalprecht.translate')\n/**\n * @ngdoc directive\n * @name pascalprecht.translate.directive:translateLanguage\n * @restrict A\n *\n * @description\n * Forces the language to the directives in the underlying scope.\n *\n * @param {string=} translate language that will be negotiated.\n *\n * @example\n   <example module=\"ngView\">\n    <file name=\"index.html\">\n      <div>\n\n        <div>\n            <h1 translate>HELLO</h1>\n        </div>\n\n        <div translate-language=\"de\">\n            <h1 translate>HELLO</h1>\n        </div>\n\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngView', ['pascalprecht.translate'])\n\n      .config(function ($translateProvider) {\n\n        $translateProvider\n          .translations('en',{\n            'HELLO': 'Hello world!'\n          })\n          .translations('de',{\n            'HELLO': 'Hallo Welt!'\n          })\n          .preferredLanguage('en');\n\n      });\n\n    </file>\n   </example>\n */\n.directive('translateLanguage', translateLanguageDirective);\n\nfunction translateLanguageDirective() {\n\n  'use strict';\n\n  return {\n    restrict: 'A',\n    scope: true,\n    compile: function () {\n      return function linkFn(scope, iElement, iAttrs) {\n\n        iAttrs.$observe('translateLanguage', function (newTranslateLanguage) {\n          scope.translateLanguage = newTranslateLanguage;\n        });\n\n        scope.$watch('translateLanguage', function(){\n          scope.$broadcast('translateLanguageChanged');\n        });\n      };\n    }\n  };\n}\n\ntranslateLanguageDirective.displayName = 'translateLanguageDirective';\n\nangular.module('pascalprecht.translate')\n/**\n * @ngdoc filter\n * @name pascalprecht.translate.filter:translate\n * @requires $parse\n * @requires pascalprecht.translate.$translate\n * @function\n *\n * @description\n * Uses `$translate` service to translate contents. Accepts interpolate parameters\n * to pass dynamized values though translation.\n *\n * @param {string} translationId A translation id to be translated.\n * @param {*=} interpolateParams Optional object literal (as hash or string) to pass values into translation.\n *\n * @returns {string} Translated text.\n *\n * @example\n   <example module=\"ngView\">\n    <file name=\"index.html\">\n      <div ng-controller=\"TranslateCtrl\">\n\n        <pre>{{ 'TRANSLATION_ID' | translate }}</pre>\n        <pre>{{ translationId | translate }}</pre>\n        <pre>{{ 'WITH_VALUES' | translate:'{value: 5}' }}</pre>\n        <pre>{{ 'WITH_VALUES' | translate:values }}</pre>\n\n      </div>\n    </file>\n    <file name=\"script.js\">\n      angular.module('ngView', ['pascalprecht.translate'])\n\n      .config(function ($translateProvider) {\n\n        $translateProvider.translations('en', {\n          'TRANSLATION_ID': 'Hello there!',\n          'WITH_VALUES': 'The following value is dynamic: {{value}}'\n        });\n        $translateProvider.preferredLanguage('en');\n\n      });\n\n      angular.module('ngView').controller('TranslateCtrl', function ($scope) {\n        $scope.translationId = 'TRANSLATION_ID';\n\n        $scope.values = {\n          value: 78\n        };\n      });\n    </file>\n   </example>\n */\n.filter('translate', translateFilterFactory);\n\nfunction translateFilterFactory($parse, $translate) {\n\n  'use strict';\n\n  var translateFilter = function (translationId, interpolateParams, interpolation, forceLanguage) {\n    if (!angular.isObject(interpolateParams)) {\n      var ctx = this || {\n        '__SCOPE_IS_NOT_AVAILABLE': 'More info at https://github.com/angular/angular.js/commit/8863b9d04c722b278fa93c5d66ad1e578ad6eb1f'\n        };\n      interpolateParams = $parse(interpolateParams)(ctx);\n    }\n\n    return $translate.instant(translationId, interpolateParams, interpolation, forceLanguage);\n  };\n\n  if ($translate.statefulFilter()) {\n    translateFilter.$stateful = true;\n  }\n\n  return translateFilter;\n}\n\ntranslateFilterFactory.displayName = 'translateFilterFactory';\n\nangular.module('pascalprecht.translate')\n\n/**\n * @ngdoc object\n * @name pascalprecht.translate.$translationCache\n * @requires $cacheFactory\n *\n * @description\n * The first time a translation table is used, it is loaded in the translation cache for quick retrieval. You\n * can load translation tables directly into the cache by consuming the\n * `$translationCache` service directly.\n *\n * @return {object} $cacheFactory object.\n */\n  .factory('$translationCache', $translationCache);\n\nfunction $translationCache($cacheFactory) {\n\n  'use strict';\n\n  return $cacheFactory('translations');\n}\n\n$translationCache.displayName = '$translationCache';\nreturn 'pascalprecht.translate';\n\n}));\n\n/**\n * Angular Dynamic Locale - 0.1.37\n * https://github.com/lgalfaso/angular-dynamic-locale\n * License: MIT\n */\n(function (root, factory) {\n  if (typeof define === 'function' && define.amd) {\n    // AMD. Register as an anonymous module unless amdModuleId is set\n    define([], function () {\n      return (factory());\n    });\n  } else if (typeof exports === 'object') {\n    // Node. Does not work with strict CommonJS, but\n    // only CommonJS-like environments that support module.exports,\n    // like Node.\n    module.exports = factory();\n  } else {\n    factory();\n  }\n}(this, function () {\n  'use strict';\n  angular.module('tmh.dynamicLocale', []).config(['$provide', function($provide) {\n    function makeStateful($delegate) {\n      $delegate.$stateful = true;\n      return $delegate;\n    }\n\n    $provide.decorator('dateFilter', ['$delegate', makeStateful]);\n    $provide.decorator('numberFilter', ['$delegate', makeStateful]);\n    $provide.decorator('currencyFilter', ['$delegate', makeStateful]);\n\n  }])\n    .constant('tmhDynamicLocale.STORAGE_KEY', 'tmhDynamicLocale.locale')\n    .provider('tmhDynamicLocale', ['tmhDynamicLocale.STORAGE_KEY', function(STORAGE_KEY) {\n\n      var defaultLocale,\n        localeLocationPattern = 'angular/i18n/angular-locale_{{locale}}.js',\n        nodeToAppend,\n        storageFactory = 'tmhDynamicLocaleStorageCache',\n        storage,\n        storageKey = STORAGE_KEY,\n        storageGet = 'get',\n        storagePut = 'put',\n        promiseCache = {},\n        activeLocale,\n        extraProperties = {};\n\n      /**\n   * Loads a script asynchronously\n   *\n   * @param {string} url The url for the script\n   @ @param {function} callback A function to be called once the script is loaded\n   */\n      function loadScript(url, callback, errorCallback, $timeout) {\n        var script = document.createElement('script'),\n          element = nodeToAppend ? nodeToAppend : document.getElementsByTagName('body')[0],\n          removed = false;\n\n        script.type = 'text/javascript';\n        if (script.readyState) { // IE\n          script.onreadystatechange = function () {\n            if (script.readyState === 'complete' ||\n            script.readyState === 'loaded') {\n              script.onreadystatechange = null;\n              $timeout(\n                function () {\n                  if (removed) return;\n                  removed = true;\n                  if (script.parentNode === element) {\n                    element.removeChild(script);\n                  }\n                  callback();\n                }, 30, false);\n            }\n          };\n        } else { // Others\n          script.onload = function () {\n            if (removed) return;\n            removed = true;\n            if (script.parentNode === element) {\n              element.removeChild(script);\n            }\n            callback();\n          };\n          script.onerror = function () {\n            if (removed) return;\n            removed = true;\n            if (script.parentNode === element) {\n              element.removeChild(script);\n            }\n            errorCallback();\n          };\n        }\n        script.src = url;\n        script.async = true;\n        element.appendChild(script);\n      }\n\n      /**\n   * Loads a locale and replaces the properties from the current locale with the new locale information\n   *\n   * @param {string} localeUrl The path to the new locale\n   * @param {Object} $locale The locale at the curent scope\n   * @param {string} localeId The locale id to load\n   * @param {Object} $rootScope The application $rootScope\n   * @param {Object} $q The application $q\n   * @param {Object} localeCache The current locale cache\n   * @param {Object} $timeout The application $timeout\n   */\n      function loadLocale(localeUrl, $locale, localeId, $rootScope, $q, localeCache, $timeout) {\n\n        function overrideValues(oldObject, newObject) {\n          if (activeLocale !== localeId) {\n            return;\n          }\n          angular.forEach(oldObject, function(value, key) {\n            if (!newObject[key]) {\n              delete oldObject[key];\n            } else if (angular.isArray(newObject[key])) {\n              oldObject[key].length = newObject[key].length;\n            }\n          });\n          angular.forEach(newObject, function(value, key) {\n            if (angular.isArray(newObject[key]) || angular.isObject(newObject[key])) {\n              if (!oldObject[key]) {\n                oldObject[key] = angular.isArray(newObject[key]) ? [] : {};\n              }\n              overrideValues(oldObject[key], newObject[key]);\n            } else {\n              oldObject[key] = newObject[key];\n            }\n          });\n        }\n\n\n        if (promiseCache[localeId]) {\n          activeLocale = localeId;\n          return promiseCache[localeId];\n        }\n\n        var cachedLocale,\n          deferred = $q.defer();\n        if (localeId === activeLocale) {\n          deferred.resolve($locale);\n        } else if ((cachedLocale = localeCache.get(localeId))) {\n          activeLocale = localeId;\n          $rootScope.$evalAsync(function() {\n            overrideValues($locale, cachedLocale);\n            storage[storagePut](storageKey, localeId);\n            $rootScope.$broadcast('$localeChangeSuccess', localeId, $locale);\n            deferred.resolve($locale);\n          });\n        } else {\n          activeLocale = localeId;\n          promiseCache[localeId] = deferred.promise;\n          loadScript(localeUrl, function() {\n            // Create a new injector with the new locale\n            var localInjector = angular.injector(['ngLocale']),\n              externalLocale = localInjector.get('$locale');\n\n            overrideValues($locale, externalLocale);\n            localeCache.put(localeId, externalLocale);\n            delete promiseCache[localeId];\n\n            $rootScope.$applyAsync(function() {\n              storage[storagePut](storageKey, localeId);\n              $rootScope.$broadcast('$localeChangeSuccess', localeId, $locale);\n              deferred.resolve($locale);\n            });\n          }, function() {\n            delete promiseCache[localeId];\n\n            $rootScope.$applyAsync(function() {\n              if (activeLocale === localeId) {\n                activeLocale = $locale.id;\n              }\n              $rootScope.$broadcast('$localeChangeError', localeId);\n              deferred.reject(localeId);\n            });\n          }, $timeout);\n        }\n        return deferred.promise;\n      }\n\n      this.localeLocationPattern = function(value) {\n        if (value) {\n          localeLocationPattern = value;\n          return this;\n        } else {\n          return localeLocationPattern;\n        }\n      };\n\n      this.appendScriptTo = function(nodeElement) {\n        nodeToAppend = nodeElement;\n      };\n\n      this.useStorage = function(storageName) {\n        storageFactory = storageName;\n        storageGet = 'get';\n        storagePut = 'put';\n      };\n\n      this.useCookieStorage = function() {\n        if (angular.version.minor < 7) {\n          this.useStorage('$cookieStore');\n        } else {\n          this.useStorage('$cookies');\n          storageGet = 'getObject';\n          storagePut = 'putObject';\n        }\n      };\n\n      this.defaultLocale = function(value) {\n        defaultLocale = value;\n      };\n\n      this.storageKey = function(value) {\n        if (value) {\n          storageKey = value;\n          return this;\n        } else {\n          return storageKey;\n        }\n      };\n\n      this.addLocalePatternValue = function(key, value) {\n        extraProperties[key] = value;\n      };\n\n      this.$get = ['$rootScope', '$injector', '$interpolate', '$locale', '$q', 'tmhDynamicLocaleCache', '$timeout', function($rootScope, $injector, interpolate, locale, $q, tmhDynamicLocaleCache, $timeout) {\n        var localeLocation = interpolate(localeLocationPattern);\n\n        storage = $injector.get(storageFactory);\n        $rootScope.$evalAsync(function() {\n          var initialLocale;\n          if ((initialLocale = (storage[storageGet](storageKey) || defaultLocale))) {\n            loadLocaleFn(initialLocale);\n          }\n        });\n        return {\n          /**\n       * @ngdoc method\n       * @description\n       * @param {string} value Sets the locale to the new locale. Changing the locale will trigger\n       *    a background task that will retrieve the new locale and configure the current $locale\n       *    instance with the information from the new locale\n       */\n          set: loadLocaleFn,\n          /**\n       * @ngdoc method\n       * @description Returns the configured locale\n       */\n          get: function() {\n            return activeLocale;\n          }\n        };\n\n        function loadLocaleFn(localeId) {\n          var baseProperties = {locale: localeId, angularVersion: angular.version.full};\n          return loadLocale(localeLocation(angular.extend({}, extraProperties, baseProperties)), locale, localeId, $rootScope, $q, tmhDynamicLocaleCache, $timeout);\n        }\n      }];\n    }]).provider('tmhDynamicLocaleCache', function() {\n      this.$get = ['$cacheFactory', function($cacheFactory) {\n        return $cacheFactory('tmh.dynamicLocales');\n      }];\n    }).provider('tmhDynamicLocaleStorageCache', function() {\n      this.$get = ['$cacheFactory', function($cacheFactory) {\n        return $cacheFactory('tmh.dynamicLocales.store');\n      }];\n    }).run(['tmhDynamicLocale', angular.noop]);\n\n  return 'tmh.dynamicLocale';\n\n}));\n\n/**\n * @license\n * Lodash <https://lodash.com/>\n * Copyright OpenJS Foundation and other contributors <https://openjsf.org/>\n * Released under MIT license <https://lodash.com/license>\n * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>\n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n;(function() {\n\n  /** Used as a safe reference for `undefined` in pre-ES5 environments. */\n  var undefined;\n\n  /** Used as the semantic version number. */\n  var VERSION = '4.17.21';\n\n  /** Used as the size to enable large array optimizations. */\n  var LARGE_ARRAY_SIZE = 200;\n\n  /** Error message constants. */\n  var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',\n      FUNC_ERROR_TEXT = 'Expected a function',\n      INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`';\n\n  /** Used to stand-in for `undefined` hash values. */\n  var HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n  /** Used as the maximum memoize cache size. */\n  var MAX_MEMOIZE_SIZE = 500;\n\n  /** Used as the internal argument placeholder. */\n  var PLACEHOLDER = '__lodash_placeholder__';\n\n  /** Used to compose bitmasks for cloning. */\n  var CLONE_DEEP_FLAG = 1,\n      CLONE_FLAT_FLAG = 2,\n      CLONE_SYMBOLS_FLAG = 4;\n\n  /** Used to compose bitmasks for value comparisons. */\n  var COMPARE_PARTIAL_FLAG = 1,\n      COMPARE_UNORDERED_FLAG = 2;\n\n  /** Used to compose bitmasks for function metadata. */\n  var WRAP_BIND_FLAG = 1,\n      WRAP_BIND_KEY_FLAG = 2,\n      WRAP_CURRY_BOUND_FLAG = 4,\n      WRAP_CURRY_FLAG = 8,\n      WRAP_CURRY_RIGHT_FLAG = 16,\n      WRAP_PARTIAL_FLAG = 32,\n      WRAP_PARTIAL_RIGHT_FLAG = 64,\n      WRAP_ARY_FLAG = 128,\n      WRAP_REARG_FLAG = 256,\n      WRAP_FLIP_FLAG = 512;\n\n  /** Used as default options for `_.truncate`. */\n  var DEFAULT_TRUNC_LENGTH = 30,\n      DEFAULT_TRUNC_OMISSION = '...';\n\n  /** Used to detect hot functions by number of calls within a span of milliseconds. */\n  var HOT_COUNT = 800,\n      HOT_SPAN = 16;\n\n  /** Used to indicate the type of lazy iteratees. */\n  var LAZY_FILTER_FLAG = 1,\n      LAZY_MAP_FLAG = 2,\n      LAZY_WHILE_FLAG = 3;\n\n  /** Used as references for various `Number` constants. */\n  var INFINITY = 1 / 0,\n      MAX_SAFE_INTEGER = 9007199254740991,\n      MAX_INTEGER = 1.7976931348623157e+308,\n      NAN = 0 / 0;\n\n  /** Used as references for the maximum length and index of an array. */\n  var MAX_ARRAY_LENGTH = 4294967295,\n      MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,\n      HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;\n\n  /** Used to associate wrap methods with their bit flags. */\n  var wrapFlags = [\n    ['ary', WRAP_ARY_FLAG],\n    ['bind', WRAP_BIND_FLAG],\n    ['bindKey', WRAP_BIND_KEY_FLAG],\n    ['curry', WRAP_CURRY_FLAG],\n    ['curryRight', WRAP_CURRY_RIGHT_FLAG],\n    ['flip', WRAP_FLIP_FLAG],\n    ['partial', WRAP_PARTIAL_FLAG],\n    ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],\n    ['rearg', WRAP_REARG_FLAG]\n  ];\n\n  /** `Object#toString` result references. */\n  var argsTag = '[object Arguments]',\n      arrayTag = '[object Array]',\n      asyncTag = '[object AsyncFunction]',\n      boolTag = '[object Boolean]',\n      dateTag = '[object Date]',\n      domExcTag = '[object DOMException]',\n      errorTag = '[object Error]',\n      funcTag = '[object Function]',\n      genTag = '[object GeneratorFunction]',\n      mapTag = '[object Map]',\n      numberTag = '[object Number]',\n      nullTag = '[object Null]',\n      objectTag = '[object Object]',\n      promiseTag = '[object Promise]',\n      proxyTag = '[object Proxy]',\n      regexpTag = '[object RegExp]',\n      setTag = '[object Set]',\n      stringTag = '[object String]',\n      symbolTag = '[object Symbol]',\n      undefinedTag = '[object Undefined]',\n      weakMapTag = '[object WeakMap]',\n      weakSetTag = '[object WeakSet]';\n\n  var arrayBufferTag = '[object ArrayBuffer]',\n      dataViewTag = '[object DataView]',\n      float32Tag = '[object Float32Array]',\n      float64Tag = '[object Float64Array]',\n      int8Tag = '[object Int8Array]',\n      int16Tag = '[object Int16Array]',\n      int32Tag = '[object Int32Array]',\n      uint8Tag = '[object Uint8Array]',\n      uint8ClampedTag = '[object Uint8ClampedArray]',\n      uint16Tag = '[object Uint16Array]',\n      uint32Tag = '[object Uint32Array]';\n\n  /** Used to match empty string literals in compiled template source. */\n  var reEmptyStringLeading = /\\b__p \\+= '';/g,\n      reEmptyStringMiddle = /\\b(__p \\+=) '' \\+/g,\n      reEmptyStringTrailing = /(__e\\(.*?\\)|\\b__t\\)) \\+\\n'';/g;\n\n  /** Used to match HTML entities and HTML characters. */\n  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,\n      reUnescapedHtml = /[&<>\"']/g,\n      reHasEscapedHtml = RegExp(reEscapedHtml.source),\n      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);\n\n  /** Used to match template delimiters. */\n  var reEscape = /<%-([\\s\\S]+?)%>/g,\n      reEvaluate = /<%([\\s\\S]+?)%>/g,\n      reInterpolate = /<%=([\\s\\S]+?)%>/g;\n\n  /** Used to match property names within property paths. */\n  var reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n      reIsPlainProp = /^\\w*$/,\n      rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n  /**\n   * Used to match `RegExp`\n   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n   */\n  var reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n      reHasRegExpChar = RegExp(reRegExpChar.source);\n\n  /** Used to match leading whitespace. */\n  var reTrimStart = /^\\s+/;\n\n  /** Used to match a single whitespace character. */\n  var reWhitespace = /\\s/;\n\n  /** Used to match wrap detail comments. */\n  var reWrapComment = /\\{(?:\\n\\/\\* \\[wrapped with .+\\] \\*\\/)?\\n?/,\n      reWrapDetails = /\\{\\n\\/\\* \\[wrapped with (.+)\\] \\*/,\n      reSplitDetails = /,? & /;\n\n  /** Used to match words composed of alphanumeric characters. */\n  var reAsciiWord = /[^\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\x7f]+/g;\n\n  /**\n   * Used to validate the `validate` option in `_.template` variable.\n   *\n   * Forbids characters which could potentially change the meaning of the function argument definition:\n   * - \"(),\" (modification of function parameters)\n   * - \"=\" (default value)\n   * - \"[]{}\" (destructuring of function parameters)\n   * - \"/\" (beginning of a comment)\n   * - whitespace\n   */\n  var reForbiddenIdentifierChars = /[()=,{}\\[\\]\\/\\s]/;\n\n  /** Used to match backslashes in property paths. */\n  var reEscapeChar = /\\\\(\\\\)?/g;\n\n  /**\n   * Used to match\n   * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).\n   */\n  var reEsTemplate = /\\$\\{([^\\\\}]*(?:\\\\.[^\\\\}]*)*)\\}/g;\n\n  /** Used to match `RegExp` flags from their coerced string values. */\n  var reFlags = /\\w*$/;\n\n  /** Used to detect bad signed hexadecimal string values. */\n  var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n  /** Used to detect binary string values. */\n  var reIsBinary = /^0b[01]+$/i;\n\n  /** Used to detect host constructors (Safari). */\n  var reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n  /** Used to detect octal string values. */\n  var reIsOctal = /^0o[0-7]+$/i;\n\n  /** Used to detect unsigned integer values. */\n  var reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n  /** Used to match Latin Unicode letters (excluding mathematical operators). */\n  var reLatin = /[\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\xff\\u0100-\\u017f]/g;\n\n  /** Used to ensure capturing order of template delimiters. */\n  var reNoMatch = /($^)/;\n\n  /** Used to match unescaped characters in compiled string literals. */\n  var reUnescapedString = /['\\n\\r\\u2028\\u2029\\\\]/g;\n\n  /** Used to compose unicode character classes. */\n  var rsAstralRange = '\\\\ud800-\\\\udfff',\n      rsComboMarksRange = '\\\\u0300-\\\\u036f',\n      reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n      rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n      rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n      rsDingbatRange = '\\\\u2700-\\\\u27bf',\n      rsLowerRange = 'a-z\\\\xdf-\\\\xf6\\\\xf8-\\\\xff',\n      rsMathOpRange = '\\\\xac\\\\xb1\\\\xd7\\\\xf7',\n      rsNonCharRange = '\\\\x00-\\\\x2f\\\\x3a-\\\\x40\\\\x5b-\\\\x60\\\\x7b-\\\\xbf',\n      rsPunctuationRange = '\\\\u2000-\\\\u206f',\n      rsSpaceRange = ' \\\\t\\\\x0b\\\\f\\\\xa0\\\\ufeff\\\\n\\\\r\\\\u2028\\\\u2029\\\\u1680\\\\u180e\\\\u2000\\\\u2001\\\\u2002\\\\u2003\\\\u2004\\\\u2005\\\\u2006\\\\u2007\\\\u2008\\\\u2009\\\\u200a\\\\u202f\\\\u205f\\\\u3000',\n      rsUpperRange = 'A-Z\\\\xc0-\\\\xd6\\\\xd8-\\\\xde',\n      rsVarRange = '\\\\ufe0e\\\\ufe0f',\n      rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;\n\n  /** Used to compose unicode capture groups. */\n  var rsApos = \"['\\u2019]\",\n      rsAstral = '[' + rsAstralRange + ']',\n      rsBreak = '[' + rsBreakRange + ']',\n      rsCombo = '[' + rsComboRange + ']',\n      rsDigits = '\\\\d+',\n      rsDingbat = '[' + rsDingbatRange + ']',\n      rsLower = '[' + rsLowerRange + ']',\n      rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',\n      rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n      rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n      rsNonAstral = '[^' + rsAstralRange + ']',\n      rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n      rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n      rsUpper = '[' + rsUpperRange + ']',\n      rsZWJ = '\\\\u200d';\n\n  /** Used to compose unicode regexes. */\n  var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',\n      rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',\n      rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',\n      rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',\n      reOptMod = rsModifier + '?',\n      rsOptVar = '[' + rsVarRange + ']?',\n      rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n      rsOrdLower = '\\\\d*(?:1st|2nd|3rd|(?![123])\\\\dth)(?=\\\\b|[A-Z_])',\n      rsOrdUpper = '\\\\d*(?:1ST|2ND|3RD|(?![123])\\\\dTH)(?=\\\\b|[a-z_])',\n      rsSeq = rsOptVar + reOptMod + rsOptJoin,\n      rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,\n      rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n  /** Used to match apostrophes. */\n  var reApos = RegExp(rsApos, 'g');\n\n  /**\n   * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and\n   * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).\n   */\n  var reComboMark = RegExp(rsCombo, 'g');\n\n  /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\n  var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n  /** Used to match complex or compound words. */\n  var reUnicodeWord = RegExp([\n    rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',\n    rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',\n    rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,\n    rsUpper + '+' + rsOptContrUpper,\n    rsOrdUpper,\n    rsOrdLower,\n    rsDigits,\n    rsEmoji\n  ].join('|'), 'g');\n\n  /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\n  var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboRange + rsVarRange + ']');\n\n  /** Used to detect strings that need a more robust regexp to match words. */\n  var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;\n\n  /** Used to assign default `context` object properties. */\n  var contextProps = [\n    'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',\n    'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',\n    'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',\n    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',\n    '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'\n  ];\n\n  /** Used to make template sourceURLs easier to identify. */\n  var templateCounter = -1;\n\n  /** Used to identify `toStringTag` values of typed arrays. */\n  var typedArrayTags = {};\n  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\n  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\n  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\n  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\n  typedArrayTags[uint32Tag] = true;\n  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =\n  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\n  typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\n  typedArrayTags[errorTag] = typedArrayTags[funcTag] =\n  typedArrayTags[mapTag] = typedArrayTags[numberTag] =\n  typedArrayTags[objectTag] = typedArrayTags[regexpTag] =\n  typedArrayTags[setTag] = typedArrayTags[stringTag] =\n  typedArrayTags[weakMapTag] = false;\n\n  /** Used to identify `toStringTag` values supported by `_.clone`. */\n  var cloneableTags = {};\n  cloneableTags[argsTag] = cloneableTags[arrayTag] =\n  cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\n  cloneableTags[boolTag] = cloneableTags[dateTag] =\n  cloneableTags[float32Tag] = cloneableTags[float64Tag] =\n  cloneableTags[int8Tag] = cloneableTags[int16Tag] =\n  cloneableTags[int32Tag] = cloneableTags[mapTag] =\n  cloneableTags[numberTag] = cloneableTags[objectTag] =\n  cloneableTags[regexpTag] = cloneableTags[setTag] =\n  cloneableTags[stringTag] = cloneableTags[symbolTag] =\n  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\n  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\n  cloneableTags[errorTag] = cloneableTags[funcTag] =\n  cloneableTags[weakMapTag] = false;\n\n  /** Used to map Latin Unicode letters to basic Latin letters. */\n  var deburredLetters = {\n    // Latin-1 Supplement block.\n    '\\xc0': 'A',  '\\xc1': 'A', '\\xc2': 'A', '\\xc3': 'A', '\\xc4': 'A', '\\xc5': 'A',\n    '\\xe0': 'a',  '\\xe1': 'a', '\\xe2': 'a', '\\xe3': 'a', '\\xe4': 'a', '\\xe5': 'a',\n    '\\xc7': 'C',  '\\xe7': 'c',\n    '\\xd0': 'D',  '\\xf0': 'd',\n    '\\xc8': 'E',  '\\xc9': 'E', '\\xca': 'E', '\\xcb': 'E',\n    '\\xe8': 'e',  '\\xe9': 'e', '\\xea': 'e', '\\xeb': 'e',\n    '\\xcc': 'I',  '\\xcd': 'I', '\\xce': 'I', '\\xcf': 'I',\n    '\\xec': 'i',  '\\xed': 'i', '\\xee': 'i', '\\xef': 'i',\n    '\\xd1': 'N',  '\\xf1': 'n',\n    '\\xd2': 'O',  '\\xd3': 'O', '\\xd4': 'O', '\\xd5': 'O', '\\xd6': 'O', '\\xd8': 'O',\n    '\\xf2': 'o',  '\\xf3': 'o', '\\xf4': 'o', '\\xf5': 'o', '\\xf6': 'o', '\\xf8': 'o',\n    '\\xd9': 'U',  '\\xda': 'U', '\\xdb': 'U', '\\xdc': 'U',\n    '\\xf9': 'u',  '\\xfa': 'u', '\\xfb': 'u', '\\xfc': 'u',\n    '\\xdd': 'Y',  '\\xfd': 'y', '\\xff': 'y',\n    '\\xc6': 'Ae', '\\xe6': 'ae',\n    '\\xde': 'Th', '\\xfe': 'th',\n    '\\xdf': 'ss',\n    // Latin Extended-A block.\n    '\\u0100': 'A',  '\\u0102': 'A', '\\u0104': 'A',\n    '\\u0101': 'a',  '\\u0103': 'a', '\\u0105': 'a',\n    '\\u0106': 'C',  '\\u0108': 'C', '\\u010a': 'C', '\\u010c': 'C',\n    '\\u0107': 'c',  '\\u0109': 'c', '\\u010b': 'c', '\\u010d': 'c',\n    '\\u010e': 'D',  '\\u0110': 'D', '\\u010f': 'd', '\\u0111': 'd',\n    '\\u0112': 'E',  '\\u0114': 'E', '\\u0116': 'E', '\\u0118': 'E', '\\u011a': 'E',\n    '\\u0113': 'e',  '\\u0115': 'e', '\\u0117': 'e', '\\u0119': 'e', '\\u011b': 'e',\n    '\\u011c': 'G',  '\\u011e': 'G', '\\u0120': 'G', '\\u0122': 'G',\n    '\\u011d': 'g',  '\\u011f': 'g', '\\u0121': 'g', '\\u0123': 'g',\n    '\\u0124': 'H',  '\\u0126': 'H', '\\u0125': 'h', '\\u0127': 'h',\n    '\\u0128': 'I',  '\\u012a': 'I', '\\u012c': 'I', '\\u012e': 'I', '\\u0130': 'I',\n    '\\u0129': 'i',  '\\u012b': 'i', '\\u012d': 'i', '\\u012f': 'i', '\\u0131': 'i',\n    '\\u0134': 'J',  '\\u0135': 'j',\n    '\\u0136': 'K',  '\\u0137': 'k', '\\u0138': 'k',\n    '\\u0139': 'L',  '\\u013b': 'L', '\\u013d': 'L', '\\u013f': 'L', '\\u0141': 'L',\n    '\\u013a': 'l',  '\\u013c': 'l', '\\u013e': 'l', '\\u0140': 'l', '\\u0142': 'l',\n    '\\u0143': 'N',  '\\u0145': 'N', '\\u0147': 'N', '\\u014a': 'N',\n    '\\u0144': 'n',  '\\u0146': 'n', '\\u0148': 'n', '\\u014b': 'n',\n    '\\u014c': 'O',  '\\u014e': 'O', '\\u0150': 'O',\n    '\\u014d': 'o',  '\\u014f': 'o', '\\u0151': 'o',\n    '\\u0154': 'R',  '\\u0156': 'R', '\\u0158': 'R',\n    '\\u0155': 'r',  '\\u0157': 'r', '\\u0159': 'r',\n    '\\u015a': 'S',  '\\u015c': 'S', '\\u015e': 'S', '\\u0160': 'S',\n    '\\u015b': 's',  '\\u015d': 's', '\\u015f': 's', '\\u0161': 's',\n    '\\u0162': 'T',  '\\u0164': 'T', '\\u0166': 'T',\n    '\\u0163': 't',  '\\u0165': 't', '\\u0167': 't',\n    '\\u0168': 'U',  '\\u016a': 'U', '\\u016c': 'U', '\\u016e': 'U', '\\u0170': 'U', '\\u0172': 'U',\n    '\\u0169': 'u',  '\\u016b': 'u', '\\u016d': 'u', '\\u016f': 'u', '\\u0171': 'u', '\\u0173': 'u',\n    '\\u0174': 'W',  '\\u0175': 'w',\n    '\\u0176': 'Y',  '\\u0177': 'y', '\\u0178': 'Y',\n    '\\u0179': 'Z',  '\\u017b': 'Z', '\\u017d': 'Z',\n    '\\u017a': 'z',  '\\u017c': 'z', '\\u017e': 'z',\n    '\\u0132': 'IJ', '\\u0133': 'ij',\n    '\\u0152': 'Oe', '\\u0153': 'oe',\n    '\\u0149': \"'n\", '\\u017f': 's'\n  };\n\n  /** Used to map characters to HTML entities. */\n  var htmlEscapes = {\n    '&': '&amp;',\n    '<': '&lt;',\n    '>': '&gt;',\n    '\"': '&quot;',\n    \"'\": '&#39;'\n  };\n\n  /** Used to map HTML entities to characters. */\n  var htmlUnescapes = {\n    '&amp;': '&',\n    '&lt;': '<',\n    '&gt;': '>',\n    '&quot;': '\"',\n    '&#39;': \"'\"\n  };\n\n  /** Used to escape characters for inclusion in compiled string literals. */\n  var stringEscapes = {\n    '\\\\': '\\\\',\n    \"'\": \"'\",\n    '\\n': 'n',\n    '\\r': 'r',\n    '\\u2028': 'u2028',\n    '\\u2029': 'u2029'\n  };\n\n  /** Built-in method references without a dependency on `root`. */\n  var freeParseFloat = parseFloat,\n      freeParseInt = parseInt;\n\n  /** Detect free variable `global` from Node.js. */\n  var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n  /** Detect free variable `self`. */\n  var freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n  /** Used as a reference to the global object. */\n  var root = freeGlobal || freeSelf || Function('return this')();\n\n  /** Detect free variable `exports`. */\n  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n  /** Detect free variable `module`. */\n  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n  /** Detect the popular CommonJS extension `module.exports`. */\n  var moduleExports = freeModule && freeModule.exports === freeExports;\n\n  /** Detect free variable `process` from Node.js. */\n  var freeProcess = moduleExports && freeGlobal.process;\n\n  /** Used to access faster Node.js helpers. */\n  var nodeUtil = (function() {\n    try {\n      // Use `util.types` for Node.js 10+.\n      var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n      if (types) {\n        return types;\n      }\n\n      // Legacy `process.binding('util')` for Node.js < 10.\n      return freeProcess && freeProcess.binding && freeProcess.binding('util');\n    } catch (e) {}\n  }());\n\n  /* Node.js helper references. */\n  var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,\n      nodeIsDate = nodeUtil && nodeUtil.isDate,\n      nodeIsMap = nodeUtil && nodeUtil.isMap,\n      nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,\n      nodeIsSet = nodeUtil && nodeUtil.isSet,\n      nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n  /*--------------------------------------------------------------------------*/\n\n  /**\n   * A faster alternative to `Function#apply`, this function invokes `func`\n   * with the `this` binding of `thisArg` and the arguments of `args`.\n   *\n   * @private\n   * @param {Function} func The function to invoke.\n   * @param {*} thisArg The `this` binding of `func`.\n   * @param {Array} args The arguments to invoke `func` with.\n   * @returns {*} Returns the result of `func`.\n   */\n  function apply(func, thisArg, args) {\n    switch (args.length) {\n      case 0: return func.call(thisArg);\n      case 1: return func.call(thisArg, args[0]);\n      case 2: return func.call(thisArg, args[0], args[1]);\n      case 3: return func.call(thisArg, args[0], args[1], args[2]);\n    }\n    return func.apply(thisArg, args);\n  }\n\n  /**\n   * A specialized version of `baseAggregator` for arrays.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} setter The function to set `accumulator` values.\n   * @param {Function} iteratee The iteratee to transform keys.\n   * @param {Object} accumulator The initial aggregated object.\n   * @returns {Function} Returns `accumulator`.\n   */\n  function arrayAggregator(array, setter, iteratee, accumulator) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      var value = array[index];\n      setter(accumulator, value, iteratee(value), array);\n    }\n    return accumulator;\n  }\n\n  /**\n   * A specialized version of `_.forEach` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns `array`.\n   */\n  function arrayEach(array, iteratee) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (iteratee(array[index], index, array) === false) {\n        break;\n      }\n    }\n    return array;\n  }\n\n  /**\n   * A specialized version of `_.forEachRight` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns `array`.\n   */\n  function arrayEachRight(array, iteratee) {\n    var length = array == null ? 0 : array.length;\n\n    while (length--) {\n      if (iteratee(array[length], length, array) === false) {\n        break;\n      }\n    }\n    return array;\n  }\n\n  /**\n   * A specialized version of `_.every` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} predicate The function invoked per iteration.\n   * @returns {boolean} Returns `true` if all elements pass the predicate check,\n   *  else `false`.\n   */\n  function arrayEvery(array, predicate) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (!predicate(array[index], index, array)) {\n        return false;\n      }\n    }\n    return true;\n  }\n\n  /**\n   * A specialized version of `_.filter` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} predicate The function invoked per iteration.\n   * @returns {Array} Returns the new filtered array.\n   */\n  function arrayFilter(array, predicate) {\n    var index = -1,\n        length = array == null ? 0 : array.length,\n        resIndex = 0,\n        result = [];\n\n    while (++index < length) {\n      var value = array[index];\n      if (predicate(value, index, array)) {\n        result[resIndex++] = value;\n      }\n    }\n    return result;\n  }\n\n  /**\n   * A specialized version of `_.includes` for arrays without support for\n   * specifying an index to search from.\n   *\n   * @private\n   * @param {Array} [array] The array to inspect.\n   * @param {*} target The value to search for.\n   * @returns {boolean} Returns `true` if `target` is found, else `false`.\n   */\n  function arrayIncludes(array, value) {\n    var length = array == null ? 0 : array.length;\n    return !!length && baseIndexOf(array, value, 0) > -1;\n  }\n\n  /**\n   * This function is like `arrayIncludes` except that it accepts a comparator.\n   *\n   * @private\n   * @param {Array} [array] The array to inspect.\n   * @param {*} target The value to search for.\n   * @param {Function} comparator The comparator invoked per element.\n   * @returns {boolean} Returns `true` if `target` is found, else `false`.\n   */\n  function arrayIncludesWith(array, value, comparator) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (comparator(value, array[index])) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * A specialized version of `_.map` for arrays without support for iteratee\n   * shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns the new mapped array.\n   */\n  function arrayMap(array, iteratee) {\n    var index = -1,\n        length = array == null ? 0 : array.length,\n        result = Array(length);\n\n    while (++index < length) {\n      result[index] = iteratee(array[index], index, array);\n    }\n    return result;\n  }\n\n  /**\n   * Appends the elements of `values` to `array`.\n   *\n   * @private\n   * @param {Array} array The array to modify.\n   * @param {Array} values The values to append.\n   * @returns {Array} Returns `array`.\n   */\n  function arrayPush(array, values) {\n    var index = -1,\n        length = values.length,\n        offset = array.length;\n\n    while (++index < length) {\n      array[offset + index] = values[index];\n    }\n    return array;\n  }\n\n  /**\n   * A specialized version of `_.reduce` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @param {*} [accumulator] The initial value.\n   * @param {boolean} [initAccum] Specify using the first element of `array` as\n   *  the initial value.\n   * @returns {*} Returns the accumulated value.\n   */\n  function arrayReduce(array, iteratee, accumulator, initAccum) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    if (initAccum && length) {\n      accumulator = array[++index];\n    }\n    while (++index < length) {\n      accumulator = iteratee(accumulator, array[index], index, array);\n    }\n    return accumulator;\n  }\n\n  /**\n   * A specialized version of `_.reduceRight` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @param {*} [accumulator] The initial value.\n   * @param {boolean} [initAccum] Specify using the last element of `array` as\n   *  the initial value.\n   * @returns {*} Returns the accumulated value.\n   */\n  function arrayReduceRight(array, iteratee, accumulator, initAccum) {\n    var length = array == null ? 0 : array.length;\n    if (initAccum && length) {\n      accumulator = array[--length];\n    }\n    while (length--) {\n      accumulator = iteratee(accumulator, array[length], length, array);\n    }\n    return accumulator;\n  }\n\n  /**\n   * A specialized version of `_.some` for arrays without support for iteratee\n   * shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} predicate The function invoked per iteration.\n   * @returns {boolean} Returns `true` if any element passes the predicate check,\n   *  else `false`.\n   */\n  function arraySome(array, predicate) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (predicate(array[index], index, array)) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Gets the size of an ASCII `string`.\n   *\n   * @private\n   * @param {string} string The string inspect.\n   * @returns {number} Returns the string size.\n   */\n  var asciiSize = baseProperty('length');\n\n  /**\n   * Converts an ASCII `string` to an array.\n   *\n   * @private\n   * @param {string} string The string to convert.\n   * @returns {Array} Returns the converted array.\n   */\n  function asciiToArray(string) {\n    return string.split('');\n  }\n\n  /**\n   * Splits an ASCII `string` into an array of its words.\n   *\n   * @private\n   * @param {string} The string to inspect.\n   * @returns {Array} Returns the words of `string`.\n   */\n  function asciiWords(string) {\n    return string.match(reAsciiWord) || [];\n  }\n\n  /**\n   * The base implementation of methods like `_.findKey` and `_.findLastKey`,\n   * without support for iteratee shorthands, which iterates over `collection`\n   * using `eachFunc`.\n   *\n   * @private\n   * @param {Array|Object} collection The collection to inspect.\n   * @param {Function} predicate The function invoked per iteration.\n   * @param {Function} eachFunc The function to iterate over `collection`.\n   * @returns {*} Returns the found element or its key, else `undefined`.\n   */\n  function baseFindKey(collection, predicate, eachFunc) {\n    var result;\n    eachFunc(collection, function(value, key, collection) {\n      if (predicate(value, key, collection)) {\n        result = key;\n        return false;\n      }\n    });\n    return result;\n  }\n\n  /**\n   * The base implementation of `_.findIndex` and `_.findLastIndex` without\n   * support for iteratee shorthands.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {Function} predicate The function invoked per iteration.\n   * @param {number} fromIndex The index to search from.\n   * @param {boolean} [fromRight] Specify iterating from right to left.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n  function baseFindIndex(array, predicate, fromIndex, fromRight) {\n    var length = array.length,\n        index = fromIndex + (fromRight ? 1 : -1);\n\n    while ((fromRight ? index-- : ++index < length)) {\n      if (predicate(array[index], index, array)) {\n        return index;\n      }\n    }\n    return -1;\n  }\n\n  /**\n   * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n  function baseIndexOf(array, value, fromIndex) {\n    return value === value\n      ? strictIndexOf(array, value, fromIndex)\n      : baseFindIndex(array, baseIsNaN, fromIndex);\n  }\n\n  /**\n   * This function is like `baseIndexOf` except that it accepts a comparator.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @param {Function} comparator The comparator invoked per element.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n  function baseIndexOfWith(array, value, fromIndex, comparator) {\n    var index = fromIndex - 1,\n        length = array.length;\n\n    while (++index < length) {\n      if (comparator(array[index], value)) {\n        return index;\n      }\n    }\n    return -1;\n  }\n\n  /**\n   * The base implementation of `_.isNaN` without support for number objects.\n   *\n   * @private\n   * @param {*} value The value to check.\n   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n   */\n  function baseIsNaN(value) {\n    return value !== value;\n  }\n\n  /**\n   * The base implementation of `_.mean` and `_.meanBy` without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} array The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {number} Returns the mean.\n   */\n  function baseMean(array, iteratee) {\n    var length = array == null ? 0 : array.length;\n    return length ? (baseSum(array, iteratee) / length) : NAN;\n  }\n\n  /**\n   * The base implementation of `_.property` without support for deep paths.\n   *\n   * @private\n   * @param {string} key The key of the property to get.\n   * @returns {Function} Returns the new accessor function.\n   */\n  function baseProperty(key) {\n    return function(object) {\n      return object == null ? undefined : object[key];\n    };\n  }\n\n  /**\n   * The base implementation of `_.propertyOf` without support for deep paths.\n   *\n   * @private\n   * @param {Object} object The object to query.\n   * @returns {Function} Returns the new accessor function.\n   */\n  function basePropertyOf(object) {\n    return function(key) {\n      return object == null ? undefined : object[key];\n    };\n  }\n\n  /**\n   * The base implementation of `_.reduce` and `_.reduceRight`, without support\n   * for iteratee shorthands, which iterates over `collection` using `eachFunc`.\n   *\n   * @private\n   * @param {Array|Object} collection The collection to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @param {*} accumulator The initial value.\n   * @param {boolean} initAccum Specify using the first or last element of\n   *  `collection` as the initial value.\n   * @param {Function} eachFunc The function to iterate over `collection`.\n   * @returns {*} Returns the accumulated value.\n   */\n  function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {\n    eachFunc(collection, function(value, index, collection) {\n      accumulator = initAccum\n        ? (initAccum = false, value)\n        : iteratee(accumulator, value, index, collection);\n    });\n    return accumulator;\n  }\n\n  /**\n   * The base implementation of `_.sortBy` which uses `comparer` to define the\n   * sort order of `array` and replaces criteria objects with their corresponding\n   * values.\n   *\n   * @private\n   * @param {Array} array The array to sort.\n   * @param {Function} comparer The function to define sort order.\n   * @returns {Array} Returns `array`.\n   */\n  function baseSortBy(array, comparer) {\n    var length = array.length;\n\n    array.sort(comparer);\n    while (length--) {\n      array[length] = array[length].value;\n    }\n    return array;\n  }\n\n  /**\n   * The base implementation of `_.sum` and `_.sumBy` without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} array The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {number} Returns the sum.\n   */\n  function baseSum(array, iteratee) {\n    var result,\n        index = -1,\n        length = array.length;\n\n    while (++index < length) {\n      var current = iteratee(array[index]);\n      if (current !== undefined) {\n        result = result === undefined ? current : (result + current);\n      }\n    }\n    return result;\n  }\n\n  /**\n   * The base implementation of `_.times` without support for iteratee shorthands\n   * or max array length checks.\n   *\n   * @private\n   * @param {number} n The number of times to invoke `iteratee`.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns the array of results.\n   */\n  function baseTimes(n, iteratee) {\n    var index = -1,\n        result = Array(n);\n\n    while (++index < n) {\n      result[index] = iteratee(index);\n    }\n    return result;\n  }\n\n  /**\n   * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array\n   * of key-value pairs for `object` corresponding to the property names of `props`.\n   *\n   * @private\n   * @param {Object} object The object to query.\n   * @param {Array} props The property names to get values for.\n   * @returns {Object} Returns the key-value pairs.\n   */\n  function baseToPairs(object, props) {\n    return arrayMap(props, function(key) {\n      return [key, object[key]];\n    });\n  }\n\n  /**\n   * The base implementation of `_.trim`.\n   *\n   * @private\n   * @param {string} string The string to trim.\n   * @returns {string} Returns the trimmed string.\n   */\n  function baseTrim(string) {\n    return string\n      ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n      : string;\n  }\n\n  /**\n   * The base implementation of `_.unary` without support for storing metadata.\n   *\n   * @private\n   * @param {Function} func The function to cap arguments for.\n   * @returns {Function} Returns the new capped function.\n   */\n  function baseUnary(func) {\n    return function(value) {\n      return func(value);\n    };\n  }\n\n  /**\n   * The base implementation of `_.values` and `_.valuesIn` which creates an\n   * array of `object` property values corresponding to the property names\n   * of `props`.\n   *\n   * @private\n   * @param {Object} object The object to query.\n   * @param {Array} props The property names to get values for.\n   * @returns {Object} Returns the array of property values.\n   */\n  function baseValues(object, props) {\n    return arrayMap(props, function(key) {\n      return object[key];\n    });\n  }\n\n  /**\n   * Checks if a `cache` value for `key` exists.\n   *\n   * @private\n   * @param {Object} cache The cache to query.\n   * @param {string} key The key of the entry to check.\n   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n   */\n  function cacheHas(cache, key) {\n    return cache.has(key);\n  }\n\n  /**\n   * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol\n   * that is not found in the character symbols.\n   *\n   * @private\n   * @param {Array} strSymbols The string symbols to inspect.\n   * @param {Array} chrSymbols The character symbols to find.\n   * @returns {number} Returns the index of the first unmatched string symbol.\n   */\n  function charsStartIndex(strSymbols, chrSymbols) {\n    var index = -1,\n        length = strSymbols.length;\n\n    while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n    return index;\n  }\n\n  /**\n   * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol\n   * that is not found in the character symbols.\n   *\n   * @private\n   * @param {Array} strSymbols The string symbols to inspect.\n   * @param {Array} chrSymbols The character symbols to find.\n   * @returns {number} Returns the index of the last unmatched string symbol.\n   */\n  function charsEndIndex(strSymbols, chrSymbols) {\n    var index = strSymbols.length;\n\n    while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n    return index;\n  }\n\n  /**\n   * Gets the number of `placeholder` occurrences in `array`.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} placeholder The placeholder to search for.\n   * @returns {number} Returns the placeholder count.\n   */\n  function countHolders(array, placeholder) {\n    var length = array.length,\n        result = 0;\n\n    while (length--) {\n      if (array[length] === placeholder) {\n        ++result;\n      }\n    }\n    return result;\n  }\n\n  /**\n   * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A\n   * letters to basic Latin letters.\n   *\n   * @private\n   * @param {string} letter The matched letter to deburr.\n   * @returns {string} Returns the deburred letter.\n   */\n  var deburrLetter = basePropertyOf(deburredLetters);\n\n  /**\n   * Used by `_.escape` to convert characters to HTML entities.\n   *\n   * @private\n   * @param {string} chr The matched character to escape.\n   * @returns {string} Returns the escaped character.\n   */\n  var escapeHtmlChar = basePropertyOf(htmlEscapes);\n\n  /**\n   * Used by `_.template` to escape characters for inclusion in compiled string literals.\n   *\n   * @private\n   * @param {string} chr The matched character to escape.\n   * @returns {string} Returns the escaped character.\n   */\n  function escapeStringChar(chr) {\n    return '\\\\' + stringEscapes[chr];\n  }\n\n  /**\n   * Gets the value at `key` of `object`.\n   *\n   * @private\n   * @param {Object} [object] The object to query.\n   * @param {string} key The key of the property to get.\n   * @returns {*} Returns the property value.\n   */\n  function getValue(object, key) {\n    return object == null ? undefined : object[key];\n  }\n\n  /**\n   * Checks if `string` contains Unicode symbols.\n   *\n   * @private\n   * @param {string} string The string to inspect.\n   * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n   */\n  function hasUnicode(string) {\n    return reHasUnicode.test(string);\n  }\n\n  /**\n   * Checks if `string` contains a word composed of Unicode symbols.\n   *\n   * @private\n   * @param {string} string The string to inspect.\n   * @returns {boolean} Returns `true` if a word is found, else `false`.\n   */\n  function hasUnicodeWord(string) {\n    return reHasUnicodeWord.test(string);\n  }\n\n  /**\n   * Converts `iterator` to an array.\n   *\n   * @private\n   * @param {Object} iterator The iterator to convert.\n   * @returns {Array} Returns the converted array.\n   */\n  function iteratorToArray(iterator) {\n    var data,\n        result = [];\n\n    while (!(data = iterator.next()).done) {\n      result.push(data.value);\n    }\n    return result;\n  }\n\n  /**\n   * Converts `map` to its key-value pairs.\n   *\n   * @private\n   * @param {Object} map The map to convert.\n   * @returns {Array} Returns the key-value pairs.\n   */\n  function mapToArray(map) {\n    var index = -1,\n        result = Array(map.size);\n\n    map.forEach(function(value, key) {\n      result[++index] = [key, value];\n    });\n    return result;\n  }\n\n  /**\n   * Creates a unary function that invokes `func` with its argument transformed.\n   *\n   * @private\n   * @param {Function} func The function to wrap.\n   * @param {Function} transform The argument transform.\n   * @returns {Function} Returns the new function.\n   */\n  function overArg(func, transform) {\n    return function(arg) {\n      return func(transform(arg));\n    };\n  }\n\n  /**\n   * Replaces all `placeholder` elements in `array` with an internal placeholder\n   * and returns an array of their indexes.\n   *\n   * @private\n   * @param {Array} array The array to modify.\n   * @param {*} placeholder The placeholder to replace.\n   * @returns {Array} Returns the new array of placeholder indexes.\n   */\n  function replaceHolders(array, placeholder) {\n    var index = -1,\n        length = array.length,\n        resIndex = 0,\n        result = [];\n\n    while (++index < length) {\n      var value = array[index];\n      if (value === placeholder || value === PLACEHOLDER) {\n        array[index] = PLACEHOLDER;\n        result[resIndex++] = index;\n      }\n    }\n    return result;\n  }\n\n  /**\n   * Converts `set` to an array of its values.\n   *\n   * @private\n   * @param {Object} set The set to convert.\n   * @returns {Array} Returns the values.\n   */\n  function setToArray(set) {\n    var index = -1,\n        result = Array(set.size);\n\n    set.forEach(function(value) {\n      result[++index] = value;\n    });\n    return result;\n  }\n\n  /**\n   * Converts `set` to its value-value pairs.\n   *\n   * @private\n   * @param {Object} set The set to convert.\n   * @returns {Array} Returns the value-value pairs.\n   */\n  function setToPairs(set) {\n    var index = -1,\n        result = Array(set.size);\n\n    set.forEach(function(value) {\n      result[++index] = [value, value];\n    });\n    return result;\n  }\n\n  /**\n   * A specialized version of `_.indexOf` which performs strict equality\n   * comparisons of values, i.e. `===`.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n  function strictIndexOf(array, value, fromIndex) {\n    var index = fromIndex - 1,\n        length = array.length;\n\n    while (++index < length) {\n      if (array[index] === value) {\n        return index;\n      }\n    }\n    return -1;\n  }\n\n  /**\n   * A specialized version of `_.lastIndexOf` which performs strict equality\n   * comparisons of values, i.e. `===`.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n  function strictLastIndexOf(array, value, fromIndex) {\n    var index = fromIndex + 1;\n    while (index--) {\n      if (array[index] === value) {\n        return index;\n      }\n    }\n    return index;\n  }\n\n  /**\n   * Gets the number of symbols in `string`.\n   *\n   * @private\n   * @param {string} string The string to inspect.\n   * @returns {number} Returns the string size.\n   */\n  function stringSize(string) {\n    return hasUnicode(string)\n      ? unicodeSize(string)\n      : asciiSize(string);\n  }\n\n  /**\n   * Converts `string` to an array.\n   *\n   * @private\n   * @param {string} string The string to convert.\n   * @returns {Array} Returns the converted array.\n   */\n  function stringToArray(string) {\n    return hasUnicode(string)\n      ? unicodeToArray(string)\n      : asciiToArray(string);\n  }\n\n  /**\n   * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n   * character of `string`.\n   *\n   * @private\n   * @param {string} string The string to inspect.\n   * @returns {number} Returns the index of the last non-whitespace character.\n   */\n  function trimmedEndIndex(string) {\n    var index = string.length;\n\n    while (index-- && reWhitespace.test(string.charAt(index))) {}\n    return index;\n  }\n\n  /**\n   * Used by `_.unescape` to convert HTML entities to characters.\n   *\n   * @private\n   * @param {string} chr The matched character to unescape.\n   * @returns {string} Returns the unescaped character.\n   */\n  var unescapeHtmlChar = basePropertyOf(htmlUnescapes);\n\n  /**\n   * Gets the size of a Unicode `string`.\n   *\n   * @private\n   * @param {string} string The string inspect.\n   * @returns {number} Returns the string size.\n   */\n  function unicodeSize(string) {\n    var result = reUnicode.lastIndex = 0;\n    while (reUnicode.test(string)) {\n      ++result;\n    }\n    return result;\n  }\n\n  /**\n   * Converts a Unicode `string` to an array.\n   *\n   * @private\n   * @param {string} string The string to convert.\n   * @returns {Array} Returns the converted array.\n   */\n  function unicodeToArray(string) {\n    return string.match(reUnicode) || [];\n  }\n\n  /**\n   * Splits a Unicode `string` into an array of its words.\n   *\n   * @private\n   * @param {string} The string to inspect.\n   * @returns {Array} Returns the words of `string`.\n   */\n  function unicodeWords(string) {\n    return string.match(reUnicodeWord) || [];\n  }\n\n  /*--------------------------------------------------------------------------*/\n\n  /**\n   * Create a new pristine `lodash` function using the `context` object.\n   *\n   * @static\n   * @memberOf _\n   * @since 1.1.0\n   * @category Util\n   * @param {Object} [context=root] The context object.\n   * @returns {Function} Returns a new `lodash` function.\n   * @example\n   *\n   * _.mixin({ 'foo': _.constant('foo') });\n   *\n   * var lodash = _.runInContext();\n   * lodash.mixin({ 'bar': lodash.constant('bar') });\n   *\n   * _.isFunction(_.foo);\n   * // => true\n   * _.isFunction(_.bar);\n   * // => false\n   *\n   * lodash.isFunction(lodash.foo);\n   * // => false\n   * lodash.isFunction(lodash.bar);\n   * // => true\n   *\n   * // Create a suped-up `defer` in Node.js.\n   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;\n   */\n  var runInContext = (function runInContext(context) {\n    context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));\n\n    /** Built-in constructor references. */\n    var Array = context.Array,\n        Date = context.Date,\n        Error = context.Error,\n        Function = context.Function,\n        Math = context.Math,\n        Object = context.Object,\n        RegExp = context.RegExp,\n        String = context.String,\n        TypeError = context.TypeError;\n\n    /** Used for built-in method references. */\n    var arrayProto = Array.prototype,\n        funcProto = Function.prototype,\n        objectProto = Object.prototype;\n\n    /** Used to detect overreaching core-js shims. */\n    var coreJsData = context['__core-js_shared__'];\n\n    /** Used to resolve the decompiled source of functions. */\n    var funcToString = funcProto.toString;\n\n    /** Used to check objects for own properties. */\n    var hasOwnProperty = objectProto.hasOwnProperty;\n\n    /** Used to generate unique IDs. */\n    var idCounter = 0;\n\n    /** Used to detect methods masquerading as native. */\n    var maskSrcKey = (function() {\n      var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n      return uid ? ('Symbol(src)_1.' + uid) : '';\n    }());\n\n    /**\n     * Used to resolve the\n     * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n     * of values.\n     */\n    var nativeObjectToString = objectProto.toString;\n\n    /** Used to infer the `Object` constructor. */\n    var objectCtorString = funcToString.call(Object);\n\n    /** Used to restore the original `_` reference in `_.noConflict`. */\n    var oldDash = root._;\n\n    /** Used to detect if a method is native. */\n    var reIsNative = RegExp('^' +\n      funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n      .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n    );\n\n    /** Built-in value references. */\n    var Buffer = moduleExports ? context.Buffer : undefined,\n        Symbol = context.Symbol,\n        Uint8Array = context.Uint8Array,\n        allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,\n        getPrototype = overArg(Object.getPrototypeOf, Object),\n        objectCreate = Object.create,\n        propertyIsEnumerable = objectProto.propertyIsEnumerable,\n        splice = arrayProto.splice,\n        spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,\n        symIterator = Symbol ? Symbol.iterator : undefined,\n        symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n    var defineProperty = (function() {\n      try {\n        var func = getNative(Object, 'defineProperty');\n        func({}, '', {});\n        return func;\n      } catch (e) {}\n    }());\n\n    /** Mocked built-ins. */\n    var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,\n        ctxNow = Date && Date.now !== root.Date.now && Date.now,\n        ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;\n\n    /* Built-in method references for those with the same name as other `lodash` methods. */\n    var nativeCeil = Math.ceil,\n        nativeFloor = Math.floor,\n        nativeGetSymbols = Object.getOwnPropertySymbols,\n        nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n        nativeIsFinite = context.isFinite,\n        nativeJoin = arrayProto.join,\n        nativeKeys = overArg(Object.keys, Object),\n        nativeMax = Math.max,\n        nativeMin = Math.min,\n        nativeNow = Date.now,\n        nativeParseInt = context.parseInt,\n        nativeRandom = Math.random,\n        nativeReverse = arrayProto.reverse;\n\n    /* Built-in method references that are verified to be native. */\n    var DataView = getNative(context, 'DataView'),\n        Map = getNative(context, 'Map'),\n        Promise = getNative(context, 'Promise'),\n        Set = getNative(context, 'Set'),\n        WeakMap = getNative(context, 'WeakMap'),\n        nativeCreate = getNative(Object, 'create');\n\n    /** Used to store function metadata. */\n    var metaMap = WeakMap && new WeakMap;\n\n    /** Used to lookup unminified function names. */\n    var realNames = {};\n\n    /** Used to detect maps, sets, and weakmaps. */\n    var dataViewCtorString = toSource(DataView),\n        mapCtorString = toSource(Map),\n        promiseCtorString = toSource(Promise),\n        setCtorString = toSource(Set),\n        weakMapCtorString = toSource(WeakMap);\n\n    /** Used to convert symbols to primitives and strings. */\n    var symbolProto = Symbol ? Symbol.prototype : undefined,\n        symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n        symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a `lodash` object which wraps `value` to enable implicit method\n     * chain sequences. Methods that operate on and return arrays, collections,\n     * and functions can be chained together. Methods that retrieve a single value\n     * or may return a primitive value will automatically end the chain sequence\n     * and return the unwrapped value. Otherwise, the value must be unwrapped\n     * with `_#value`.\n     *\n     * Explicit chain sequences, which must be unwrapped with `_#value`, may be\n     * enabled using `_.chain`.\n     *\n     * The execution of chained methods is lazy, that is, it's deferred until\n     * `_#value` is implicitly or explicitly called.\n     *\n     * Lazy evaluation allows several methods to support shortcut fusion.\n     * Shortcut fusion is an optimization to merge iteratee calls; this avoids\n     * the creation of intermediate arrays and can greatly reduce the number of\n     * iteratee executions. Sections of a chain sequence qualify for shortcut\n     * fusion if the section is applied to an array and iteratees accept only\n     * one argument. The heuristic for whether a section qualifies for shortcut\n     * fusion is subject to change.\n     *\n     * Chaining is supported in custom builds as long as the `_#value` method is\n     * directly or indirectly included in the build.\n     *\n     * In addition to lodash methods, wrappers have `Array` and `String` methods.\n     *\n     * The wrapper `Array` methods are:\n     * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`\n     *\n     * The wrapper `String` methods are:\n     * `replace` and `split`\n     *\n     * The wrapper methods that support shortcut fusion are:\n     * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,\n     * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,\n     * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`\n     *\n     * The chainable wrapper methods are:\n     * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,\n     * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,\n     * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,\n     * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,\n     * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,\n     * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,\n     * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,\n     * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,\n     * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,\n     * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,\n     * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,\n     * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,\n     * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,\n     * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,\n     * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,\n     * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,\n     * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,\n     * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,\n     * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,\n     * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,\n     * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,\n     * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,\n     * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,\n     * `zipObject`, `zipObjectDeep`, and `zipWith`\n     *\n     * The wrapper methods that are **not** chainable by default are:\n     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,\n     * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,\n     * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,\n     * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,\n     * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,\n     * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,\n     * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,\n     * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,\n     * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,\n     * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,\n     * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,\n     * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,\n     * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,\n     * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,\n     * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,\n     * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,\n     * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,\n     * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,\n     * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,\n     * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,\n     * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,\n     * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,\n     * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,\n     * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,\n     * `upperFirst`, `value`, and `words`\n     *\n     * @name _\n     * @constructor\n     * @category Seq\n     * @param {*} value The value to wrap in a `lodash` instance.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var wrapped = _([1, 2, 3]);\n     *\n     * // Returns an unwrapped value.\n     * wrapped.reduce(_.add);\n     * // => 6\n     *\n     * // Returns a wrapped value.\n     * var squares = wrapped.map(square);\n     *\n     * _.isArray(squares);\n     * // => false\n     *\n     * _.isArray(squares.value());\n     * // => true\n     */\n    function lodash(value) {\n      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {\n        if (value instanceof LodashWrapper) {\n          return value;\n        }\n        if (hasOwnProperty.call(value, '__wrapped__')) {\n          return wrapperClone(value);\n        }\n      }\n      return new LodashWrapper(value);\n    }\n\n    /**\n     * The base implementation of `_.create` without support for assigning\n     * properties to the created object.\n     *\n     * @private\n     * @param {Object} proto The object to inherit from.\n     * @returns {Object} Returns the new object.\n     */\n    var baseCreate = (function() {\n      function object() {}\n      return function(proto) {\n        if (!isObject(proto)) {\n          return {};\n        }\n        if (objectCreate) {\n          return objectCreate(proto);\n        }\n        object.prototype = proto;\n        var result = new object;\n        object.prototype = undefined;\n        return result;\n      };\n    }());\n\n    /**\n     * The function whose prototype chain sequence wrappers inherit from.\n     *\n     * @private\n     */\n    function baseLodash() {\n      // No operation performed.\n    }\n\n    /**\n     * The base constructor for creating `lodash` wrapper objects.\n     *\n     * @private\n     * @param {*} value The value to wrap.\n     * @param {boolean} [chainAll] Enable explicit method chain sequences.\n     */\n    function LodashWrapper(value, chainAll) {\n      this.__wrapped__ = value;\n      this.__actions__ = [];\n      this.__chain__ = !!chainAll;\n      this.__index__ = 0;\n      this.__values__ = undefined;\n    }\n\n    /**\n     * By default, the template delimiters used by lodash are like those in\n     * embedded Ruby (ERB) as well as ES2015 template strings. Change the\n     * following template settings to use alternative delimiters.\n     *\n     * @static\n     * @memberOf _\n     * @type {Object}\n     */\n    lodash.templateSettings = {\n\n      /**\n       * Used to detect `data` property values to be HTML-escaped.\n       *\n       * @memberOf _.templateSettings\n       * @type {RegExp}\n       */\n      'escape': reEscape,\n\n      /**\n       * Used to detect code to be evaluated.\n       *\n       * @memberOf _.templateSettings\n       * @type {RegExp}\n       */\n      'evaluate': reEvaluate,\n\n      /**\n       * Used to detect `data` property values to inject.\n       *\n       * @memberOf _.templateSettings\n       * @type {RegExp}\n       */\n      'interpolate': reInterpolate,\n\n      /**\n       * Used to reference the data object in the template text.\n       *\n       * @memberOf _.templateSettings\n       * @type {string}\n       */\n      'variable': '',\n\n      /**\n       * Used to import variables into the compiled template.\n       *\n       * @memberOf _.templateSettings\n       * @type {Object}\n       */\n      'imports': {\n\n        /**\n         * A reference to the `lodash` function.\n         *\n         * @memberOf _.templateSettings.imports\n         * @type {Function}\n         */\n        '_': lodash\n      }\n    };\n\n    // Ensure wrappers are instances of `baseLodash`.\n    lodash.prototype = baseLodash.prototype;\n    lodash.prototype.constructor = lodash;\n\n    LodashWrapper.prototype = baseCreate(baseLodash.prototype);\n    LodashWrapper.prototype.constructor = LodashWrapper;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.\n     *\n     * @private\n     * @constructor\n     * @param {*} value The value to wrap.\n     */\n    function LazyWrapper(value) {\n      this.__wrapped__ = value;\n      this.__actions__ = [];\n      this.__dir__ = 1;\n      this.__filtered__ = false;\n      this.__iteratees__ = [];\n      this.__takeCount__ = MAX_ARRAY_LENGTH;\n      this.__views__ = [];\n    }\n\n    /**\n     * Creates a clone of the lazy wrapper object.\n     *\n     * @private\n     * @name clone\n     * @memberOf LazyWrapper\n     * @returns {Object} Returns the cloned `LazyWrapper` object.\n     */\n    function lazyClone() {\n      var result = new LazyWrapper(this.__wrapped__);\n      result.__actions__ = copyArray(this.__actions__);\n      result.__dir__ = this.__dir__;\n      result.__filtered__ = this.__filtered__;\n      result.__iteratees__ = copyArray(this.__iteratees__);\n      result.__takeCount__ = this.__takeCount__;\n      result.__views__ = copyArray(this.__views__);\n      return result;\n    }\n\n    /**\n     * Reverses the direction of lazy iteration.\n     *\n     * @private\n     * @name reverse\n     * @memberOf LazyWrapper\n     * @returns {Object} Returns the new reversed `LazyWrapper` object.\n     */\n    function lazyReverse() {\n      if (this.__filtered__) {\n        var result = new LazyWrapper(this);\n        result.__dir__ = -1;\n        result.__filtered__ = true;\n      } else {\n        result = this.clone();\n        result.__dir__ *= -1;\n      }\n      return result;\n    }\n\n    /**\n     * Extracts the unwrapped value from its lazy wrapper.\n     *\n     * @private\n     * @name value\n     * @memberOf LazyWrapper\n     * @returns {*} Returns the unwrapped value.\n     */\n    function lazyValue() {\n      var array = this.__wrapped__.value(),\n          dir = this.__dir__,\n          isArr = isArray(array),\n          isRight = dir < 0,\n          arrLength = isArr ? array.length : 0,\n          view = getView(0, arrLength, this.__views__),\n          start = view.start,\n          end = view.end,\n          length = end - start,\n          index = isRight ? end : (start - 1),\n          iteratees = this.__iteratees__,\n          iterLength = iteratees.length,\n          resIndex = 0,\n          takeCount = nativeMin(length, this.__takeCount__);\n\n      if (!isArr || (!isRight && arrLength == length && takeCount == length)) {\n        return baseWrapperValue(array, this.__actions__);\n      }\n      var result = [];\n\n      outer:\n      while (length-- && resIndex < takeCount) {\n        index += dir;\n\n        var iterIndex = -1,\n            value = array[index];\n\n        while (++iterIndex < iterLength) {\n          var data = iteratees[iterIndex],\n              iteratee = data.iteratee,\n              type = data.type,\n              computed = iteratee(value);\n\n          if (type == LAZY_MAP_FLAG) {\n            value = computed;\n          } else if (!computed) {\n            if (type == LAZY_FILTER_FLAG) {\n              continue outer;\n            } else {\n              break outer;\n            }\n          }\n        }\n        result[resIndex++] = value;\n      }\n      return result;\n    }\n\n    // Ensure `LazyWrapper` is an instance of `baseLodash`.\n    LazyWrapper.prototype = baseCreate(baseLodash.prototype);\n    LazyWrapper.prototype.constructor = LazyWrapper;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a hash object.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n    function Hash(entries) {\n      var index = -1,\n          length = entries == null ? 0 : entries.length;\n\n      this.clear();\n      while (++index < length) {\n        var entry = entries[index];\n        this.set(entry[0], entry[1]);\n      }\n    }\n\n    /**\n     * Removes all key-value entries from the hash.\n     *\n     * @private\n     * @name clear\n     * @memberOf Hash\n     */\n    function hashClear() {\n      this.__data__ = nativeCreate ? nativeCreate(null) : {};\n      this.size = 0;\n    }\n\n    /**\n     * Removes `key` and its value from the hash.\n     *\n     * @private\n     * @name delete\n     * @memberOf Hash\n     * @param {Object} hash The hash to modify.\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n    function hashDelete(key) {\n      var result = this.has(key) && delete this.__data__[key];\n      this.size -= result ? 1 : 0;\n      return result;\n    }\n\n    /**\n     * Gets the hash value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf Hash\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n    function hashGet(key) {\n      var data = this.__data__;\n      if (nativeCreate) {\n        var result = data[key];\n        return result === HASH_UNDEFINED ? undefined : result;\n      }\n      return hasOwnProperty.call(data, key) ? data[key] : undefined;\n    }\n\n    /**\n     * Checks if a hash value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf Hash\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n    function hashHas(key) {\n      var data = this.__data__;\n      return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n    }\n\n    /**\n     * Sets the hash `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf Hash\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the hash instance.\n     */\n    function hashSet(key, value) {\n      var data = this.__data__;\n      this.size += this.has(key) ? 0 : 1;\n      data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n      return this;\n    }\n\n    // Add methods to `Hash`.\n    Hash.prototype.clear = hashClear;\n    Hash.prototype['delete'] = hashDelete;\n    Hash.prototype.get = hashGet;\n    Hash.prototype.has = hashHas;\n    Hash.prototype.set = hashSet;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an list cache object.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n    function ListCache(entries) {\n      var index = -1,\n          length = entries == null ? 0 : entries.length;\n\n      this.clear();\n      while (++index < length) {\n        var entry = entries[index];\n        this.set(entry[0], entry[1]);\n      }\n    }\n\n    /**\n     * Removes all key-value entries from the list cache.\n     *\n     * @private\n     * @name clear\n     * @memberOf ListCache\n     */\n    function listCacheClear() {\n      this.__data__ = [];\n      this.size = 0;\n    }\n\n    /**\n     * Removes `key` and its value from the list cache.\n     *\n     * @private\n     * @name delete\n     * @memberOf ListCache\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n    function listCacheDelete(key) {\n      var data = this.__data__,\n          index = assocIndexOf(data, key);\n\n      if (index < 0) {\n        return false;\n      }\n      var lastIndex = data.length - 1;\n      if (index == lastIndex) {\n        data.pop();\n      } else {\n        splice.call(data, index, 1);\n      }\n      --this.size;\n      return true;\n    }\n\n    /**\n     * Gets the list cache value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf ListCache\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n    function listCacheGet(key) {\n      var data = this.__data__,\n          index = assocIndexOf(data, key);\n\n      return index < 0 ? undefined : data[index][1];\n    }\n\n    /**\n     * Checks if a list cache value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf ListCache\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n    function listCacheHas(key) {\n      return assocIndexOf(this.__data__, key) > -1;\n    }\n\n    /**\n     * Sets the list cache `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf ListCache\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the list cache instance.\n     */\n    function listCacheSet(key, value) {\n      var data = this.__data__,\n          index = assocIndexOf(data, key);\n\n      if (index < 0) {\n        ++this.size;\n        data.push([key, value]);\n      } else {\n        data[index][1] = value;\n      }\n      return this;\n    }\n\n    // Add methods to `ListCache`.\n    ListCache.prototype.clear = listCacheClear;\n    ListCache.prototype['delete'] = listCacheDelete;\n    ListCache.prototype.get = listCacheGet;\n    ListCache.prototype.has = listCacheHas;\n    ListCache.prototype.set = listCacheSet;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a map cache object to store key-value pairs.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n    function MapCache(entries) {\n      var index = -1,\n          length = entries == null ? 0 : entries.length;\n\n      this.clear();\n      while (++index < length) {\n        var entry = entries[index];\n        this.set(entry[0], entry[1]);\n      }\n    }\n\n    /**\n     * Removes all key-value entries from the map.\n     *\n     * @private\n     * @name clear\n     * @memberOf MapCache\n     */\n    function mapCacheClear() {\n      this.size = 0;\n      this.__data__ = {\n        'hash': new Hash,\n        'map': new (Map || ListCache),\n        'string': new Hash\n      };\n    }\n\n    /**\n     * Removes `key` and its value from the map.\n     *\n     * @private\n     * @name delete\n     * @memberOf MapCache\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n    function mapCacheDelete(key) {\n      var result = getMapData(this, key)['delete'](key);\n      this.size -= result ? 1 : 0;\n      return result;\n    }\n\n    /**\n     * Gets the map value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf MapCache\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n    function mapCacheGet(key) {\n      return getMapData(this, key).get(key);\n    }\n\n    /**\n     * Checks if a map value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf MapCache\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n    function mapCacheHas(key) {\n      return getMapData(this, key).has(key);\n    }\n\n    /**\n     * Sets the map `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf MapCache\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the map cache instance.\n     */\n    function mapCacheSet(key, value) {\n      var data = getMapData(this, key),\n          size = data.size;\n\n      data.set(key, value);\n      this.size += data.size == size ? 0 : 1;\n      return this;\n    }\n\n    // Add methods to `MapCache`.\n    MapCache.prototype.clear = mapCacheClear;\n    MapCache.prototype['delete'] = mapCacheDelete;\n    MapCache.prototype.get = mapCacheGet;\n    MapCache.prototype.has = mapCacheHas;\n    MapCache.prototype.set = mapCacheSet;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     *\n     * Creates an array cache object to store unique values.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [values] The values to cache.\n     */\n    function SetCache(values) {\n      var index = -1,\n          length = values == null ? 0 : values.length;\n\n      this.__data__ = new MapCache;\n      while (++index < length) {\n        this.add(values[index]);\n      }\n    }\n\n    /**\n     * Adds `value` to the array cache.\n     *\n     * @private\n     * @name add\n     * @memberOf SetCache\n     * @alias push\n     * @param {*} value The value to cache.\n     * @returns {Object} Returns the cache instance.\n     */\n    function setCacheAdd(value) {\n      this.__data__.set(value, HASH_UNDEFINED);\n      return this;\n    }\n\n    /**\n     * Checks if `value` is in the array cache.\n     *\n     * @private\n     * @name has\n     * @memberOf SetCache\n     * @param {*} value The value to search for.\n     * @returns {number} Returns `true` if `value` is found, else `false`.\n     */\n    function setCacheHas(value) {\n      return this.__data__.has(value);\n    }\n\n    // Add methods to `SetCache`.\n    SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\n    SetCache.prototype.has = setCacheHas;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a stack cache object to store key-value pairs.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n    function Stack(entries) {\n      var data = this.__data__ = new ListCache(entries);\n      this.size = data.size;\n    }\n\n    /**\n     * Removes all key-value entries from the stack.\n     *\n     * @private\n     * @name clear\n     * @memberOf Stack\n     */\n    function stackClear() {\n      this.__data__ = new ListCache;\n      this.size = 0;\n    }\n\n    /**\n     * Removes `key` and its value from the stack.\n     *\n     * @private\n     * @name delete\n     * @memberOf Stack\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n    function stackDelete(key) {\n      var data = this.__data__,\n          result = data['delete'](key);\n\n      this.size = data.size;\n      return result;\n    }\n\n    /**\n     * Gets the stack value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf Stack\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n    function stackGet(key) {\n      return this.__data__.get(key);\n    }\n\n    /**\n     * Checks if a stack value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf Stack\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n    function stackHas(key) {\n      return this.__data__.has(key);\n    }\n\n    /**\n     * Sets the stack `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf Stack\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the stack cache instance.\n     */\n    function stackSet(key, value) {\n      var data = this.__data__;\n      if (data instanceof ListCache) {\n        var pairs = data.__data__;\n        if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n          pairs.push([key, value]);\n          this.size = ++data.size;\n          return this;\n        }\n        data = this.__data__ = new MapCache(pairs);\n      }\n      data.set(key, value);\n      this.size = data.size;\n      return this;\n    }\n\n    // Add methods to `Stack`.\n    Stack.prototype.clear = stackClear;\n    Stack.prototype['delete'] = stackDelete;\n    Stack.prototype.get = stackGet;\n    Stack.prototype.has = stackHas;\n    Stack.prototype.set = stackSet;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an array of the enumerable property names of the array-like `value`.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @param {boolean} inherited Specify returning inherited property names.\n     * @returns {Array} Returns the array of property names.\n     */\n    function arrayLikeKeys(value, inherited) {\n      var isArr = isArray(value),\n          isArg = !isArr && isArguments(value),\n          isBuff = !isArr && !isArg && isBuffer(value),\n          isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n          skipIndexes = isArr || isArg || isBuff || isType,\n          result = skipIndexes ? baseTimes(value.length, String) : [],\n          length = result.length;\n\n      for (var key in value) {\n        if ((inherited || hasOwnProperty.call(value, key)) &&\n            !(skipIndexes && (\n               // Safari 9 has enumerable `arguments.length` in strict mode.\n               key == 'length' ||\n               // Node.js 0.10 has enumerable non-index properties on buffers.\n               (isBuff && (key == 'offset' || key == 'parent')) ||\n               // PhantomJS 2 has enumerable non-index properties on typed arrays.\n               (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n               // Skip index properties.\n               isIndex(key, length)\n            ))) {\n          result.push(key);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * A specialized version of `_.sample` for arrays.\n     *\n     * @private\n     * @param {Array} array The array to sample.\n     * @returns {*} Returns the random element.\n     */\n    function arraySample(array) {\n      var length = array.length;\n      return length ? array[baseRandom(0, length - 1)] : undefined;\n    }\n\n    /**\n     * A specialized version of `_.sampleSize` for arrays.\n     *\n     * @private\n     * @param {Array} array The array to sample.\n     * @param {number} n The number of elements to sample.\n     * @returns {Array} Returns the random elements.\n     */\n    function arraySampleSize(array, n) {\n      return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));\n    }\n\n    /**\n     * A specialized version of `_.shuffle` for arrays.\n     *\n     * @private\n     * @param {Array} array The array to shuffle.\n     * @returns {Array} Returns the new shuffled array.\n     */\n    function arrayShuffle(array) {\n      return shuffleSelf(copyArray(array));\n    }\n\n    /**\n     * This function is like `assignValue` except that it doesn't assign\n     * `undefined` values.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {string} key The key of the property to assign.\n     * @param {*} value The value to assign.\n     */\n    function assignMergeValue(object, key, value) {\n      if ((value !== undefined && !eq(object[key], value)) ||\n          (value === undefined && !(key in object))) {\n        baseAssignValue(object, key, value);\n      }\n    }\n\n    /**\n     * Assigns `value` to `key` of `object` if the existing value is not equivalent\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {string} key The key of the property to assign.\n     * @param {*} value The value to assign.\n     */\n    function assignValue(object, key, value) {\n      var objValue = object[key];\n      if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n          (value === undefined && !(key in object))) {\n        baseAssignValue(object, key, value);\n      }\n    }\n\n    /**\n     * Gets the index at which the `key` is found in `array` of key-value pairs.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {*} key The key to search for.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     */\n    function assocIndexOf(array, key) {\n      var length = array.length;\n      while (length--) {\n        if (eq(array[length][0], key)) {\n          return length;\n        }\n      }\n      return -1;\n    }\n\n    /**\n     * Aggregates elements of `collection` on `accumulator` with keys transformed\n     * by `iteratee` and values set by `setter`.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} setter The function to set `accumulator` values.\n     * @param {Function} iteratee The iteratee to transform keys.\n     * @param {Object} accumulator The initial aggregated object.\n     * @returns {Function} Returns `accumulator`.\n     */\n    function baseAggregator(collection, setter, iteratee, accumulator) {\n      baseEach(collection, function(value, key, collection) {\n        setter(accumulator, value, iteratee(value), collection);\n      });\n      return accumulator;\n    }\n\n    /**\n     * The base implementation of `_.assign` without support for multiple sources\n     * or `customizer` functions.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @returns {Object} Returns `object`.\n     */\n    function baseAssign(object, source) {\n      return object && copyObject(source, keys(source), object);\n    }\n\n    /**\n     * The base implementation of `_.assignIn` without support for multiple sources\n     * or `customizer` functions.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @returns {Object} Returns `object`.\n     */\n    function baseAssignIn(object, source) {\n      return object && copyObject(source, keysIn(source), object);\n    }\n\n    /**\n     * The base implementation of `assignValue` and `assignMergeValue` without\n     * value checks.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {string} key The key of the property to assign.\n     * @param {*} value The value to assign.\n     */\n    function baseAssignValue(object, key, value) {\n      if (key == '__proto__' && defineProperty) {\n        defineProperty(object, key, {\n          'configurable': true,\n          'enumerable': true,\n          'value': value,\n          'writable': true\n        });\n      } else {\n        object[key] = value;\n      }\n    }\n\n    /**\n     * The base implementation of `_.at` without support for individual paths.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {string[]} paths The property paths to pick.\n     * @returns {Array} Returns the picked elements.\n     */\n    function baseAt(object, paths) {\n      var index = -1,\n          length = paths.length,\n          result = Array(length),\n          skip = object == null;\n\n      while (++index < length) {\n        result[index] = skip ? undefined : get(object, paths[index]);\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.clamp` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {number} number The number to clamp.\n     * @param {number} [lower] The lower bound.\n     * @param {number} upper The upper bound.\n     * @returns {number} Returns the clamped number.\n     */\n    function baseClamp(number, lower, upper) {\n      if (number === number) {\n        if (upper !== undefined) {\n          number = number <= upper ? number : upper;\n        }\n        if (lower !== undefined) {\n          number = number >= lower ? number : lower;\n        }\n      }\n      return number;\n    }\n\n    /**\n     * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n     * traversed objects.\n     *\n     * @private\n     * @param {*} value The value to clone.\n     * @param {boolean} bitmask The bitmask flags.\n     *  1 - Deep clone\n     *  2 - Flatten inherited properties\n     *  4 - Clone symbols\n     * @param {Function} [customizer] The function to customize cloning.\n     * @param {string} [key] The key of `value`.\n     * @param {Object} [object] The parent object of `value`.\n     * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n     * @returns {*} Returns the cloned value.\n     */\n    function baseClone(value, bitmask, customizer, key, object, stack) {\n      var result,\n          isDeep = bitmask & CLONE_DEEP_FLAG,\n          isFlat = bitmask & CLONE_FLAT_FLAG,\n          isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n      if (customizer) {\n        result = object ? customizer(value, key, object, stack) : customizer(value);\n      }\n      if (result !== undefined) {\n        return result;\n      }\n      if (!isObject(value)) {\n        return value;\n      }\n      var isArr = isArray(value);\n      if (isArr) {\n        result = initCloneArray(value);\n        if (!isDeep) {\n          return copyArray(value, result);\n        }\n      } else {\n        var tag = getTag(value),\n            isFunc = tag == funcTag || tag == genTag;\n\n        if (isBuffer(value)) {\n          return cloneBuffer(value, isDeep);\n        }\n        if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n          result = (isFlat || isFunc) ? {} : initCloneObject(value);\n          if (!isDeep) {\n            return isFlat\n              ? copySymbolsIn(value, baseAssignIn(result, value))\n              : copySymbols(value, baseAssign(result, value));\n          }\n        } else {\n          if (!cloneableTags[tag]) {\n            return object ? value : {};\n          }\n          result = initCloneByTag(value, tag, isDeep);\n        }\n      }\n      // Check for circular references and return its corresponding clone.\n      stack || (stack = new Stack);\n      var stacked = stack.get(value);\n      if (stacked) {\n        return stacked;\n      }\n      stack.set(value, result);\n\n      if (isSet(value)) {\n        value.forEach(function(subValue) {\n          result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n        });\n      } else if (isMap(value)) {\n        value.forEach(function(subValue, key) {\n          result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n        });\n      }\n\n      var keysFunc = isFull\n        ? (isFlat ? getAllKeysIn : getAllKeys)\n        : (isFlat ? keysIn : keys);\n\n      var props = isArr ? undefined : keysFunc(value);\n      arrayEach(props || value, function(subValue, key) {\n        if (props) {\n          key = subValue;\n          subValue = value[key];\n        }\n        // Recursively populate clone (susceptible to call stack limits).\n        assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n      });\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.conforms` which doesn't clone `source`.\n     *\n     * @private\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {Function} Returns the new spec function.\n     */\n    function baseConforms(source) {\n      var props = keys(source);\n      return function(object) {\n        return baseConformsTo(object, source, props);\n      };\n    }\n\n    /**\n     * The base implementation of `_.conformsTo` which accepts `props` to check.\n     *\n     * @private\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n     */\n    function baseConformsTo(object, source, props) {\n      var length = props.length;\n      if (object == null) {\n        return !length;\n      }\n      object = Object(object);\n      while (length--) {\n        var key = props[length],\n            predicate = source[key],\n            value = object[key];\n\n        if ((value === undefined && !(key in object)) || !predicate(value)) {\n          return false;\n        }\n      }\n      return true;\n    }\n\n    /**\n     * The base implementation of `_.delay` and `_.defer` which accepts `args`\n     * to provide to `func`.\n     *\n     * @private\n     * @param {Function} func The function to delay.\n     * @param {number} wait The number of milliseconds to delay invocation.\n     * @param {Array} args The arguments to provide to `func`.\n     * @returns {number|Object} Returns the timer id or timeout object.\n     */\n    function baseDelay(func, wait, args) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      return setTimeout(function() { func.apply(undefined, args); }, wait);\n    }\n\n    /**\n     * The base implementation of methods like `_.difference` without support\n     * for excluding multiple arrays or iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {Array} values The values to exclude.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     */\n    function baseDifference(array, values, iteratee, comparator) {\n      var index = -1,\n          includes = arrayIncludes,\n          isCommon = true,\n          length = array.length,\n          result = [],\n          valuesLength = values.length;\n\n      if (!length) {\n        return result;\n      }\n      if (iteratee) {\n        values = arrayMap(values, baseUnary(iteratee));\n      }\n      if (comparator) {\n        includes = arrayIncludesWith;\n        isCommon = false;\n      }\n      else if (values.length >= LARGE_ARRAY_SIZE) {\n        includes = cacheHas;\n        isCommon = false;\n        values = new SetCache(values);\n      }\n      outer:\n      while (++index < length) {\n        var value = array[index],\n            computed = iteratee == null ? value : iteratee(value);\n\n        value = (comparator || value !== 0) ? value : 0;\n        if (isCommon && computed === computed) {\n          var valuesIndex = valuesLength;\n          while (valuesIndex--) {\n            if (values[valuesIndex] === computed) {\n              continue outer;\n            }\n          }\n          result.push(value);\n        }\n        else if (!includes(values, computed, comparator)) {\n          result.push(value);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.forEach` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     */\n    var baseEach = createBaseEach(baseForOwn);\n\n    /**\n     * The base implementation of `_.forEachRight` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     */\n    var baseEachRight = createBaseEach(baseForOwnRight, true);\n\n    /**\n     * The base implementation of `_.every` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} predicate The function invoked per iteration.\n     * @returns {boolean} Returns `true` if all elements pass the predicate check,\n     *  else `false`\n     */\n    function baseEvery(collection, predicate) {\n      var result = true;\n      baseEach(collection, function(value, index, collection) {\n        result = !!predicate(value, index, collection);\n        return result;\n      });\n      return result;\n    }\n\n    /**\n     * The base implementation of methods like `_.max` and `_.min` which accepts a\n     * `comparator` to determine the extremum value.\n     *\n     * @private\n     * @param {Array} array The array to iterate over.\n     * @param {Function} iteratee The iteratee invoked per iteration.\n     * @param {Function} comparator The comparator used to compare values.\n     * @returns {*} Returns the extremum value.\n     */\n    function baseExtremum(array, iteratee, comparator) {\n      var index = -1,\n          length = array.length;\n\n      while (++index < length) {\n        var value = array[index],\n            current = iteratee(value);\n\n        if (current != null && (computed === undefined\n              ? (current === current && !isSymbol(current))\n              : comparator(current, computed)\n            )) {\n          var computed = current,\n              result = value;\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.fill` without an iteratee call guard.\n     *\n     * @private\n     * @param {Array} array The array to fill.\n     * @param {*} value The value to fill `array` with.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns `array`.\n     */\n    function baseFill(array, value, start, end) {\n      var length = array.length;\n\n      start = toInteger(start);\n      if (start < 0) {\n        start = -start > length ? 0 : (length + start);\n      }\n      end = (end === undefined || end > length) ? length : toInteger(end);\n      if (end < 0) {\n        end += length;\n      }\n      end = start > end ? 0 : toLength(end);\n      while (start < end) {\n        array[start++] = value;\n      }\n      return array;\n    }\n\n    /**\n     * The base implementation of `_.filter` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} predicate The function invoked per iteration.\n     * @returns {Array} Returns the new filtered array.\n     */\n    function baseFilter(collection, predicate) {\n      var result = [];\n      baseEach(collection, function(value, index, collection) {\n        if (predicate(value, index, collection)) {\n          result.push(value);\n        }\n      });\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.flatten` with support for restricting flattening.\n     *\n     * @private\n     * @param {Array} array The array to flatten.\n     * @param {number} depth The maximum recursion depth.\n     * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n     * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n     * @param {Array} [result=[]] The initial result value.\n     * @returns {Array} Returns the new flattened array.\n     */\n    function baseFlatten(array, depth, predicate, isStrict, result) {\n      var index = -1,\n          length = array.length;\n\n      predicate || (predicate = isFlattenable);\n      result || (result = []);\n\n      while (++index < length) {\n        var value = array[index];\n        if (depth > 0 && predicate(value)) {\n          if (depth > 1) {\n            // Recursively flatten arrays (susceptible to call stack limits).\n            baseFlatten(value, depth - 1, predicate, isStrict, result);\n          } else {\n            arrayPush(result, value);\n          }\n        } else if (!isStrict) {\n          result[result.length] = value;\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `baseForOwn` which iterates over `object`\n     * properties returned by `keysFunc` and invokes `iteratee` for each property.\n     * Iteratee functions may exit iteration early by explicitly returning `false`.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @param {Function} keysFunc The function to get the keys of `object`.\n     * @returns {Object} Returns `object`.\n     */\n    var baseFor = createBaseFor();\n\n    /**\n     * This function is like `baseFor` except that it iterates over properties\n     * in the opposite order.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @param {Function} keysFunc The function to get the keys of `object`.\n     * @returns {Object} Returns `object`.\n     */\n    var baseForRight = createBaseFor(true);\n\n    /**\n     * The base implementation of `_.forOwn` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     */\n    function baseForOwn(object, iteratee) {\n      return object && baseFor(object, iteratee, keys);\n    }\n\n    /**\n     * The base implementation of `_.forOwnRight` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     */\n    function baseForOwnRight(object, iteratee) {\n      return object && baseForRight(object, iteratee, keys);\n    }\n\n    /**\n     * The base implementation of `_.functions` which creates an array of\n     * `object` function property names filtered from `props`.\n     *\n     * @private\n     * @param {Object} object The object to inspect.\n     * @param {Array} props The property names to filter.\n     * @returns {Array} Returns the function names.\n     */\n    function baseFunctions(object, props) {\n      return arrayFilter(props, function(key) {\n        return isFunction(object[key]);\n      });\n    }\n\n    /**\n     * The base implementation of `_.get` without support for default values.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the property to get.\n     * @returns {*} Returns the resolved value.\n     */\n    function baseGet(object, path) {\n      path = castPath(path, object);\n\n      var index = 0,\n          length = path.length;\n\n      while (object != null && index < length) {\n        object = object[toKey(path[index++])];\n      }\n      return (index && index == length) ? object : undefined;\n    }\n\n    /**\n     * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n     * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n     * symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Function} keysFunc The function to get the keys of `object`.\n     * @param {Function} symbolsFunc The function to get the symbols of `object`.\n     * @returns {Array} Returns the array of property names and symbols.\n     */\n    function baseGetAllKeys(object, keysFunc, symbolsFunc) {\n      var result = keysFunc(object);\n      return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n    }\n\n    /**\n     * The base implementation of `getTag` without fallbacks for buggy environments.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @returns {string} Returns the `toStringTag`.\n     */\n    function baseGetTag(value) {\n      if (value == null) {\n        return value === undefined ? undefinedTag : nullTag;\n      }\n      return (symToStringTag && symToStringTag in Object(value))\n        ? getRawTag(value)\n        : objectToString(value);\n    }\n\n    /**\n     * The base implementation of `_.gt` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is greater than `other`,\n     *  else `false`.\n     */\n    function baseGt(value, other) {\n      return value > other;\n    }\n\n    /**\n     * The base implementation of `_.has` without support for deep paths.\n     *\n     * @private\n     * @param {Object} [object] The object to query.\n     * @param {Array|string} key The key to check.\n     * @returns {boolean} Returns `true` if `key` exists, else `false`.\n     */\n    function baseHas(object, key) {\n      return object != null && hasOwnProperty.call(object, key);\n    }\n\n    /**\n     * The base implementation of `_.hasIn` without support for deep paths.\n     *\n     * @private\n     * @param {Object} [object] The object to query.\n     * @param {Array|string} key The key to check.\n     * @returns {boolean} Returns `true` if `key` exists, else `false`.\n     */\n    function baseHasIn(object, key) {\n      return object != null && key in Object(object);\n    }\n\n    /**\n     * The base implementation of `_.inRange` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {number} number The number to check.\n     * @param {number} start The start of the range.\n     * @param {number} end The end of the range.\n     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n     */\n    function baseInRange(number, start, end) {\n      return number >= nativeMin(start, end) && number < nativeMax(start, end);\n    }\n\n    /**\n     * The base implementation of methods like `_.intersection`, without support\n     * for iteratee shorthands, that accepts an array of arrays to inspect.\n     *\n     * @private\n     * @param {Array} arrays The arrays to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of shared values.\n     */\n    function baseIntersection(arrays, iteratee, comparator) {\n      var includes = comparator ? arrayIncludesWith : arrayIncludes,\n          length = arrays[0].length,\n          othLength = arrays.length,\n          othIndex = othLength,\n          caches = Array(othLength),\n          maxLength = Infinity,\n          result = [];\n\n      while (othIndex--) {\n        var array = arrays[othIndex];\n        if (othIndex && iteratee) {\n          array = arrayMap(array, baseUnary(iteratee));\n        }\n        maxLength = nativeMin(array.length, maxLength);\n        caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))\n          ? new SetCache(othIndex && array)\n          : undefined;\n      }\n      array = arrays[0];\n\n      var index = -1,\n          seen = caches[0];\n\n      outer:\n      while (++index < length && result.length < maxLength) {\n        var value = array[index],\n            computed = iteratee ? iteratee(value) : value;\n\n        value = (comparator || value !== 0) ? value : 0;\n        if (!(seen\n              ? cacheHas(seen, computed)\n              : includes(result, computed, comparator)\n            )) {\n          othIndex = othLength;\n          while (--othIndex) {\n            var cache = caches[othIndex];\n            if (!(cache\n                  ? cacheHas(cache, computed)\n                  : includes(arrays[othIndex], computed, comparator))\n                ) {\n              continue outer;\n            }\n          }\n          if (seen) {\n            seen.push(computed);\n          }\n          result.push(value);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.invert` and `_.invertBy` which inverts\n     * `object` with values transformed by `iteratee` and set by `setter`.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} setter The function to set `accumulator` values.\n     * @param {Function} iteratee The iteratee to transform values.\n     * @param {Object} accumulator The initial inverted object.\n     * @returns {Function} Returns `accumulator`.\n     */\n    function baseInverter(object, setter, iteratee, accumulator) {\n      baseForOwn(object, function(value, key, object) {\n        setter(accumulator, iteratee(value), key, object);\n      });\n      return accumulator;\n    }\n\n    /**\n     * The base implementation of `_.invoke` without support for individual\n     * method arguments.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the method to invoke.\n     * @param {Array} args The arguments to invoke the method with.\n     * @returns {*} Returns the result of the invoked method.\n     */\n    function baseInvoke(object, path, args) {\n      path = castPath(path, object);\n      object = parent(object, path);\n      var func = object == null ? object : object[toKey(last(path))];\n      return func == null ? undefined : apply(func, object, args);\n    }\n\n    /**\n     * The base implementation of `_.isArguments`.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n     */\n    function baseIsArguments(value) {\n      return isObjectLike(value) && baseGetTag(value) == argsTag;\n    }\n\n    /**\n     * The base implementation of `_.isArrayBuffer` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n     */\n    function baseIsArrayBuffer(value) {\n      return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;\n    }\n\n    /**\n     * The base implementation of `_.isDate` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n     */\n    function baseIsDate(value) {\n      return isObjectLike(value) && baseGetTag(value) == dateTag;\n    }\n\n    /**\n     * The base implementation of `_.isEqual` which supports partial comparisons\n     * and tracks traversed objects.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @param {boolean} bitmask The bitmask flags.\n     *  1 - Unordered comparison\n     *  2 - Partial comparison\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     */\n    function baseIsEqual(value, other, bitmask, customizer, stack) {\n      if (value === other) {\n        return true;\n      }\n      if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n        return value !== value && other !== other;\n      }\n      return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n    }\n\n    /**\n     * A specialized version of `baseIsEqual` for arrays and objects which performs\n     * deep comparisons and tracks traversed objects enabling objects with circular\n     * references to be compared.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n     */\n    function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n      var objIsArr = isArray(object),\n          othIsArr = isArray(other),\n          objTag = objIsArr ? arrayTag : getTag(object),\n          othTag = othIsArr ? arrayTag : getTag(other);\n\n      objTag = objTag == argsTag ? objectTag : objTag;\n      othTag = othTag == argsTag ? objectTag : othTag;\n\n      var objIsObj = objTag == objectTag,\n          othIsObj = othTag == objectTag,\n          isSameTag = objTag == othTag;\n\n      if (isSameTag && isBuffer(object)) {\n        if (!isBuffer(other)) {\n          return false;\n        }\n        objIsArr = true;\n        objIsObj = false;\n      }\n      if (isSameTag && !objIsObj) {\n        stack || (stack = new Stack);\n        return (objIsArr || isTypedArray(object))\n          ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n          : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n      }\n      if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n        if (objIsWrapped || othIsWrapped) {\n          var objUnwrapped = objIsWrapped ? object.value() : object,\n              othUnwrapped = othIsWrapped ? other.value() : other;\n\n          stack || (stack = new Stack);\n          return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n        }\n      }\n      if (!isSameTag) {\n        return false;\n      }\n      stack || (stack = new Stack);\n      return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n    }\n\n    /**\n     * The base implementation of `_.isMap` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n     */\n    function baseIsMap(value) {\n      return isObjectLike(value) && getTag(value) == mapTag;\n    }\n\n    /**\n     * The base implementation of `_.isMatch` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property values to match.\n     * @param {Array} matchData The property names, values, and compare flags to match.\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n     */\n    function baseIsMatch(object, source, matchData, customizer) {\n      var index = matchData.length,\n          length = index,\n          noCustomizer = !customizer;\n\n      if (object == null) {\n        return !length;\n      }\n      object = Object(object);\n      while (index--) {\n        var data = matchData[index];\n        if ((noCustomizer && data[2])\n              ? data[1] !== object[data[0]]\n              : !(data[0] in object)\n            ) {\n          return false;\n        }\n      }\n      while (++index < length) {\n        data = matchData[index];\n        var key = data[0],\n            objValue = object[key],\n            srcValue = data[1];\n\n        if (noCustomizer && data[2]) {\n          if (objValue === undefined && !(key in object)) {\n            return false;\n          }\n        } else {\n          var stack = new Stack;\n          if (customizer) {\n            var result = customizer(objValue, srcValue, key, object, source, stack);\n          }\n          if (!(result === undefined\n                ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)\n                : result\n              )) {\n            return false;\n          }\n        }\n      }\n      return true;\n    }\n\n    /**\n     * The base implementation of `_.isNative` without bad shim checks.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a native function,\n     *  else `false`.\n     */\n    function baseIsNative(value) {\n      if (!isObject(value) || isMasked(value)) {\n        return false;\n      }\n      var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n      return pattern.test(toSource(value));\n    }\n\n    /**\n     * The base implementation of `_.isRegExp` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n     */\n    function baseIsRegExp(value) {\n      return isObjectLike(value) && baseGetTag(value) == regexpTag;\n    }\n\n    /**\n     * The base implementation of `_.isSet` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n     */\n    function baseIsSet(value) {\n      return isObjectLike(value) && getTag(value) == setTag;\n    }\n\n    /**\n     * The base implementation of `_.isTypedArray` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n     */\n    function baseIsTypedArray(value) {\n      return isObjectLike(value) &&\n        isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n    }\n\n    /**\n     * The base implementation of `_.iteratee`.\n     *\n     * @private\n     * @param {*} [value=_.identity] The value to convert to an iteratee.\n     * @returns {Function} Returns the iteratee.\n     */\n    function baseIteratee(value) {\n      // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n      // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n      if (typeof value == 'function') {\n        return value;\n      }\n      if (value == null) {\n        return identity;\n      }\n      if (typeof value == 'object') {\n        return isArray(value)\n          ? baseMatchesProperty(value[0], value[1])\n          : baseMatches(value);\n      }\n      return property(value);\n    }\n\n    /**\n     * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     */\n    function baseKeys(object) {\n      if (!isPrototype(object)) {\n        return nativeKeys(object);\n      }\n      var result = [];\n      for (var key in Object(object)) {\n        if (hasOwnProperty.call(object, key) && key != 'constructor') {\n          result.push(key);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     */\n    function baseKeysIn(object) {\n      if (!isObject(object)) {\n        return nativeKeysIn(object);\n      }\n      var isProto = isPrototype(object),\n          result = [];\n\n      for (var key in object) {\n        if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n          result.push(key);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.lt` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is less than `other`,\n     *  else `false`.\n     */\n    function baseLt(value, other) {\n      return value < other;\n    }\n\n    /**\n     * The base implementation of `_.map` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Array} Returns the new mapped array.\n     */\n    function baseMap(collection, iteratee) {\n      var index = -1,\n          result = isArrayLike(collection) ? Array(collection.length) : [];\n\n      baseEach(collection, function(value, key, collection) {\n        result[++index] = iteratee(value, key, collection);\n      });\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.matches` which doesn't clone `source`.\n     *\n     * @private\n     * @param {Object} source The object of property values to match.\n     * @returns {Function} Returns the new spec function.\n     */\n    function baseMatches(source) {\n      var matchData = getMatchData(source);\n      if (matchData.length == 1 && matchData[0][2]) {\n        return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n      }\n      return function(object) {\n        return object === source || baseIsMatch(object, source, matchData);\n      };\n    }\n\n    /**\n     * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n     *\n     * @private\n     * @param {string} path The path of the property to get.\n     * @param {*} srcValue The value to match.\n     * @returns {Function} Returns the new spec function.\n     */\n    function baseMatchesProperty(path, srcValue) {\n      if (isKey(path) && isStrictComparable(srcValue)) {\n        return matchesStrictComparable(toKey(path), srcValue);\n      }\n      return function(object) {\n        var objValue = get(object, path);\n        return (objValue === undefined && objValue === srcValue)\n          ? hasIn(object, path)\n          : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n      };\n    }\n\n    /**\n     * The base implementation of `_.merge` without support for multiple sources.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @param {number} srcIndex The index of `source`.\n     * @param {Function} [customizer] The function to customize merged values.\n     * @param {Object} [stack] Tracks traversed source values and their merged\n     *  counterparts.\n     */\n    function baseMerge(object, source, srcIndex, customizer, stack) {\n      if (object === source) {\n        return;\n      }\n      baseFor(source, function(srcValue, key) {\n        stack || (stack = new Stack);\n        if (isObject(srcValue)) {\n          baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n        }\n        else {\n          var newValue = customizer\n            ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n            : undefined;\n\n          if (newValue === undefined) {\n            newValue = srcValue;\n          }\n          assignMergeValue(object, key, newValue);\n        }\n      }, keysIn);\n    }\n\n    /**\n     * A specialized version of `baseMerge` for arrays and objects which performs\n     * deep merges and tracks traversed objects enabling objects with circular\n     * references to be merged.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @param {string} key The key of the value to merge.\n     * @param {number} srcIndex The index of `source`.\n     * @param {Function} mergeFunc The function to merge values.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @param {Object} [stack] Tracks traversed source values and their merged\n     *  counterparts.\n     */\n    function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n      var objValue = safeGet(object, key),\n          srcValue = safeGet(source, key),\n          stacked = stack.get(srcValue);\n\n      if (stacked) {\n        assignMergeValue(object, key, stacked);\n        return;\n      }\n      var newValue = customizer\n        ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n        : undefined;\n\n      var isCommon = newValue === undefined;\n\n      if (isCommon) {\n        var isArr = isArray(srcValue),\n            isBuff = !isArr && isBuffer(srcValue),\n            isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n        newValue = srcValue;\n        if (isArr || isBuff || isTyped) {\n          if (isArray(objValue)) {\n            newValue = objValue;\n          }\n          else if (isArrayLikeObject(objValue)) {\n            newValue = copyArray(objValue);\n          }\n          else if (isBuff) {\n            isCommon = false;\n            newValue = cloneBuffer(srcValue, true);\n          }\n          else if (isTyped) {\n            isCommon = false;\n            newValue = cloneTypedArray(srcValue, true);\n          }\n          else {\n            newValue = [];\n          }\n        }\n        else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n          newValue = objValue;\n          if (isArguments(objValue)) {\n            newValue = toPlainObject(objValue);\n          }\n          else if (!isObject(objValue) || isFunction(objValue)) {\n            newValue = initCloneObject(srcValue);\n          }\n        }\n        else {\n          isCommon = false;\n        }\n      }\n      if (isCommon) {\n        // Recursively merge objects and arrays (susceptible to call stack limits).\n        stack.set(srcValue, newValue);\n        mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n        stack['delete'](srcValue);\n      }\n      assignMergeValue(object, key, newValue);\n    }\n\n    /**\n     * The base implementation of `_.nth` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {Array} array The array to query.\n     * @param {number} n The index of the element to return.\n     * @returns {*} Returns the nth element of `array`.\n     */\n    function baseNth(array, n) {\n      var length = array.length;\n      if (!length) {\n        return;\n      }\n      n += n < 0 ? length : 0;\n      return isIndex(n, length) ? array[n] : undefined;\n    }\n\n    /**\n     * The base implementation of `_.orderBy` without param guards.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.\n     * @param {string[]} orders The sort orders of `iteratees`.\n     * @returns {Array} Returns the new sorted array.\n     */\n    function baseOrderBy(collection, iteratees, orders) {\n      if (iteratees.length) {\n        iteratees = arrayMap(iteratees, function(iteratee) {\n          if (isArray(iteratee)) {\n            return function(value) {\n              return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);\n            }\n          }\n          return iteratee;\n        });\n      } else {\n        iteratees = [identity];\n      }\n\n      var index = -1;\n      iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n\n      var result = baseMap(collection, function(value, key, collection) {\n        var criteria = arrayMap(iteratees, function(iteratee) {\n          return iteratee(value);\n        });\n        return { 'criteria': criteria, 'index': ++index, 'value': value };\n      });\n\n      return baseSortBy(result, function(object, other) {\n        return compareMultiple(object, other, orders);\n      });\n    }\n\n    /**\n     * The base implementation of `_.pick` without support for individual\n     * property identifiers.\n     *\n     * @private\n     * @param {Object} object The source object.\n     * @param {string[]} paths The property paths to pick.\n     * @returns {Object} Returns the new object.\n     */\n    function basePick(object, paths) {\n      return basePickBy(object, paths, function(value, path) {\n        return hasIn(object, path);\n      });\n    }\n\n    /**\n     * The base implementation of  `_.pickBy` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The source object.\n     * @param {string[]} paths The property paths to pick.\n     * @param {Function} predicate The function invoked per property.\n     * @returns {Object} Returns the new object.\n     */\n    function basePickBy(object, paths, predicate) {\n      var index = -1,\n          length = paths.length,\n          result = {};\n\n      while (++index < length) {\n        var path = paths[index],\n            value = baseGet(object, path);\n\n        if (predicate(value, path)) {\n          baseSet(result, castPath(path, object), value);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * A specialized version of `baseProperty` which supports deep paths.\n     *\n     * @private\n     * @param {Array|string} path The path of the property to get.\n     * @returns {Function} Returns the new accessor function.\n     */\n    function basePropertyDeep(path) {\n      return function(object) {\n        return baseGet(object, path);\n      };\n    }\n\n    /**\n     * The base implementation of `_.pullAllBy` without support for iteratee\n     * shorthands.\n     *\n     * @private\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns `array`.\n     */\n    function basePullAll(array, values, iteratee, comparator) {\n      var indexOf = comparator ? baseIndexOfWith : baseIndexOf,\n          index = -1,\n          length = values.length,\n          seen = array;\n\n      if (array === values) {\n        values = copyArray(values);\n      }\n      if (iteratee) {\n        seen = arrayMap(array, baseUnary(iteratee));\n      }\n      while (++index < length) {\n        var fromIndex = 0,\n            value = values[index],\n            computed = iteratee ? iteratee(value) : value;\n\n        while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {\n          if (seen !== array) {\n            splice.call(seen, fromIndex, 1);\n          }\n          splice.call(array, fromIndex, 1);\n        }\n      }\n      return array;\n    }\n\n    /**\n     * The base implementation of `_.pullAt` without support for individual\n     * indexes or capturing the removed elements.\n     *\n     * @private\n     * @param {Array} array The array to modify.\n     * @param {number[]} indexes The indexes of elements to remove.\n     * @returns {Array} Returns `array`.\n     */\n    function basePullAt(array, indexes) {\n      var length = array ? indexes.length : 0,\n          lastIndex = length - 1;\n\n      while (length--) {\n        var index = indexes[length];\n        if (length == lastIndex || index !== previous) {\n          var previous = index;\n          if (isIndex(index)) {\n            splice.call(array, index, 1);\n          } else {\n            baseUnset(array, index);\n          }\n        }\n      }\n      return array;\n    }\n\n    /**\n     * The base implementation of `_.random` without support for returning\n     * floating-point numbers.\n     *\n     * @private\n     * @param {number} lower The lower bound.\n     * @param {number} upper The upper bound.\n     * @returns {number} Returns the random number.\n     */\n    function baseRandom(lower, upper) {\n      return lower + nativeFloor(nativeRandom() * (upper - lower + 1));\n    }\n\n    /**\n     * The base implementation of `_.range` and `_.rangeRight` which doesn't\n     * coerce arguments.\n     *\n     * @private\n     * @param {number} start The start of the range.\n     * @param {number} end The end of the range.\n     * @param {number} step The value to increment or decrement by.\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Array} Returns the range of numbers.\n     */\n    function baseRange(start, end, step, fromRight) {\n      var index = -1,\n          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),\n          result = Array(length);\n\n      while (length--) {\n        result[fromRight ? length : ++index] = start;\n        start += step;\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.repeat` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {string} string The string to repeat.\n     * @param {number} n The number of times to repeat the string.\n     * @returns {string} Returns the repeated string.\n     */\n    function baseRepeat(string, n) {\n      var result = '';\n      if (!string || n < 1 || n > MAX_SAFE_INTEGER) {\n        return result;\n      }\n      // Leverage the exponentiation by squaring algorithm for a faster repeat.\n      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.\n      do {\n        if (n % 2) {\n          result += string;\n        }\n        n = nativeFloor(n / 2);\n        if (n) {\n          string += string;\n        }\n      } while (n);\n\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n     *\n     * @private\n     * @param {Function} func The function to apply a rest parameter to.\n     * @param {number} [start=func.length-1] The start position of the rest parameter.\n     * @returns {Function} Returns the new function.\n     */\n    function baseRest(func, start) {\n      return setToString(overRest(func, start, identity), func + '');\n    }\n\n    /**\n     * The base implementation of `_.sample`.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to sample.\n     * @returns {*} Returns the random element.\n     */\n    function baseSample(collection) {\n      return arraySample(values(collection));\n    }\n\n    /**\n     * The base implementation of `_.sampleSize` without param guards.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to sample.\n     * @param {number} n The number of elements to sample.\n     * @returns {Array} Returns the random elements.\n     */\n    function baseSampleSize(collection, n) {\n      var array = values(collection);\n      return shuffleSelf(array, baseClamp(n, 0, array.length));\n    }\n\n    /**\n     * The base implementation of `_.set`.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {*} value The value to set.\n     * @param {Function} [customizer] The function to customize path creation.\n     * @returns {Object} Returns `object`.\n     */\n    function baseSet(object, path, value, customizer) {\n      if (!isObject(object)) {\n        return object;\n      }\n      path = castPath(path, object);\n\n      var index = -1,\n          length = path.length,\n          lastIndex = length - 1,\n          nested = object;\n\n      while (nested != null && ++index < length) {\n        var key = toKey(path[index]),\n            newValue = value;\n\n        if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n          return object;\n        }\n\n        if (index != lastIndex) {\n          var objValue = nested[key];\n          newValue = customizer ? customizer(objValue, key, nested) : undefined;\n          if (newValue === undefined) {\n            newValue = isObject(objValue)\n              ? objValue\n              : (isIndex(path[index + 1]) ? [] : {});\n          }\n        }\n        assignValue(nested, key, newValue);\n        nested = nested[key];\n      }\n      return object;\n    }\n\n    /**\n     * The base implementation of `setData` without support for hot loop shorting.\n     *\n     * @private\n     * @param {Function} func The function to associate metadata with.\n     * @param {*} data The metadata.\n     * @returns {Function} Returns `func`.\n     */\n    var baseSetData = !metaMap ? identity : function(func, data) {\n      metaMap.set(func, data);\n      return func;\n    };\n\n    /**\n     * The base implementation of `setToString` without support for hot loop shorting.\n     *\n     * @private\n     * @param {Function} func The function to modify.\n     * @param {Function} string The `toString` result.\n     * @returns {Function} Returns `func`.\n     */\n    var baseSetToString = !defineProperty ? identity : function(func, string) {\n      return defineProperty(func, 'toString', {\n        'configurable': true,\n        'enumerable': false,\n        'value': constant(string),\n        'writable': true\n      });\n    };\n\n    /**\n     * The base implementation of `_.shuffle`.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to shuffle.\n     * @returns {Array} Returns the new shuffled array.\n     */\n    function baseShuffle(collection) {\n      return shuffleSelf(values(collection));\n    }\n\n    /**\n     * The base implementation of `_.slice` without an iteratee call guard.\n     *\n     * @private\n     * @param {Array} array The array to slice.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns the slice of `array`.\n     */\n    function baseSlice(array, start, end) {\n      var index = -1,\n          length = array.length;\n\n      if (start < 0) {\n        start = -start > length ? 0 : (length + start);\n      }\n      end = end > length ? length : end;\n      if (end < 0) {\n        end += length;\n      }\n      length = start > end ? 0 : ((end - start) >>> 0);\n      start >>>= 0;\n\n      var result = Array(length);\n      while (++index < length) {\n        result[index] = array[index + start];\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.some` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} predicate The function invoked per iteration.\n     * @returns {boolean} Returns `true` if any element passes the predicate check,\n     *  else `false`.\n     */\n    function baseSome(collection, predicate) {\n      var result;\n\n      baseEach(collection, function(value, index, collection) {\n        result = predicate(value, index, collection);\n        return !result;\n      });\n      return !!result;\n    }\n\n    /**\n     * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which\n     * performs a binary search of `array` to determine the index at which `value`\n     * should be inserted into `array` in order to maintain its sort order.\n     *\n     * @private\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {boolean} [retHighest] Specify returning the highest qualified index.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     */\n    function baseSortedIndex(array, value, retHighest) {\n      var low = 0,\n          high = array == null ? low : array.length;\n\n      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {\n        while (low < high) {\n          var mid = (low + high) >>> 1,\n              computed = array[mid];\n\n          if (computed !== null && !isSymbol(computed) &&\n              (retHighest ? (computed <= value) : (computed < value))) {\n            low = mid + 1;\n          } else {\n            high = mid;\n          }\n        }\n        return high;\n      }\n      return baseSortedIndexBy(array, value, identity, retHighest);\n    }\n\n    /**\n     * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`\n     * which invokes `iteratee` for `value` and each element of `array` to compute\n     * their sort ranking. The iteratee is invoked with one argument; (value).\n     *\n     * @private\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {Function} iteratee The iteratee invoked per element.\n     * @param {boolean} [retHighest] Specify returning the highest qualified index.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     */\n    function baseSortedIndexBy(array, value, iteratee, retHighest) {\n      var low = 0,\n          high = array == null ? 0 : array.length;\n      if (high === 0) {\n        return 0;\n      }\n\n      value = iteratee(value);\n      var valIsNaN = value !== value,\n          valIsNull = value === null,\n          valIsSymbol = isSymbol(value),\n          valIsUndefined = value === undefined;\n\n      while (low < high) {\n        var mid = nativeFloor((low + high) / 2),\n            computed = iteratee(array[mid]),\n            othIsDefined = computed !== undefined,\n            othIsNull = computed === null,\n            othIsReflexive = computed === computed,\n            othIsSymbol = isSymbol(computed);\n\n        if (valIsNaN) {\n          var setLow = retHighest || othIsReflexive;\n        } else if (valIsUndefined) {\n          setLow = othIsReflexive && (retHighest || othIsDefined);\n        } else if (valIsNull) {\n          setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);\n        } else if (valIsSymbol) {\n          setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);\n        } else if (othIsNull || othIsSymbol) {\n          setLow = false;\n        } else {\n          setLow = retHighest ? (computed <= value) : (computed < value);\n        }\n        if (setLow) {\n          low = mid + 1;\n        } else {\n          high = mid;\n        }\n      }\n      return nativeMin(high, MAX_ARRAY_INDEX);\n    }\n\n    /**\n     * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without\n     * support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     */\n    function baseSortedUniq(array, iteratee) {\n      var index = -1,\n          length = array.length,\n          resIndex = 0,\n          result = [];\n\n      while (++index < length) {\n        var value = array[index],\n            computed = iteratee ? iteratee(value) : value;\n\n        if (!index || !eq(computed, seen)) {\n          var seen = computed;\n          result[resIndex++] = value === 0 ? 0 : value;\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.toNumber` which doesn't ensure correct\n     * conversions of binary, hexadecimal, or octal string values.\n     *\n     * @private\n     * @param {*} value The value to process.\n     * @returns {number} Returns the number.\n     */\n    function baseToNumber(value) {\n      if (typeof value == 'number') {\n        return value;\n      }\n      if (isSymbol(value)) {\n        return NAN;\n      }\n      return +value;\n    }\n\n    /**\n     * The base implementation of `_.toString` which doesn't convert nullish\n     * values to empty strings.\n     *\n     * @private\n     * @param {*} value The value to process.\n     * @returns {string} Returns the string.\n     */\n    function baseToString(value) {\n      // Exit early for strings to avoid a performance hit in some environments.\n      if (typeof value == 'string') {\n        return value;\n      }\n      if (isArray(value)) {\n        // Recursively convert values (susceptible to call stack limits).\n        return arrayMap(value, baseToString) + '';\n      }\n      if (isSymbol(value)) {\n        return symbolToString ? symbolToString.call(value) : '';\n      }\n      var result = (value + '');\n      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n    }\n\n    /**\n     * The base implementation of `_.uniqBy` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     */\n    function baseUniq(array, iteratee, comparator) {\n      var index = -1,\n          includes = arrayIncludes,\n          length = array.length,\n          isCommon = true,\n          result = [],\n          seen = result;\n\n      if (comparator) {\n        isCommon = false;\n        includes = arrayIncludesWith;\n      }\n      else if (length >= LARGE_ARRAY_SIZE) {\n        var set = iteratee ? null : createSet(array);\n        if (set) {\n          return setToArray(set);\n        }\n        isCommon = false;\n        includes = cacheHas;\n        seen = new SetCache;\n      }\n      else {\n        seen = iteratee ? [] : result;\n      }\n      outer:\n      while (++index < length) {\n        var value = array[index],\n            computed = iteratee ? iteratee(value) : value;\n\n        value = (comparator || value !== 0) ? value : 0;\n        if (isCommon && computed === computed) {\n          var seenIndex = seen.length;\n          while (seenIndex--) {\n            if (seen[seenIndex] === computed) {\n              continue outer;\n            }\n          }\n          if (iteratee) {\n            seen.push(computed);\n          }\n          result.push(value);\n        }\n        else if (!includes(seen, computed, comparator)) {\n          if (seen !== result) {\n            seen.push(computed);\n          }\n          result.push(value);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.unset`.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The property path to unset.\n     * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n     */\n    function baseUnset(object, path) {\n      path = castPath(path, object);\n      object = parent(object, path);\n      return object == null || delete object[toKey(last(path))];\n    }\n\n    /**\n     * The base implementation of `_.update`.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to update.\n     * @param {Function} updater The function to produce the updated value.\n     * @param {Function} [customizer] The function to customize path creation.\n     * @returns {Object} Returns `object`.\n     */\n    function baseUpdate(object, path, updater, customizer) {\n      return baseSet(object, path, updater(baseGet(object, path)), customizer);\n    }\n\n    /**\n     * The base implementation of methods like `_.dropWhile` and `_.takeWhile`\n     * without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to query.\n     * @param {Function} predicate The function invoked per iteration.\n     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Array} Returns the slice of `array`.\n     */\n    function baseWhile(array, predicate, isDrop, fromRight) {\n      var length = array.length,\n          index = fromRight ? length : -1;\n\n      while ((fromRight ? index-- : ++index < length) &&\n        predicate(array[index], index, array)) {}\n\n      return isDrop\n        ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))\n        : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));\n    }\n\n    /**\n     * The base implementation of `wrapperValue` which returns the result of\n     * performing a sequence of actions on the unwrapped `value`, where each\n     * successive action is supplied the return value of the previous.\n     *\n     * @private\n     * @param {*} value The unwrapped value.\n     * @param {Array} actions Actions to perform to resolve the unwrapped value.\n     * @returns {*} Returns the resolved value.\n     */\n    function baseWrapperValue(value, actions) {\n      var result = value;\n      if (result instanceof LazyWrapper) {\n        result = result.value();\n      }\n      return arrayReduce(actions, function(result, action) {\n        return action.func.apply(action.thisArg, arrayPush([result], action.args));\n      }, result);\n    }\n\n    /**\n     * The base implementation of methods like `_.xor`, without support for\n     * iteratee shorthands, that accepts an array of arrays to inspect.\n     *\n     * @private\n     * @param {Array} arrays The arrays to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of values.\n     */\n    function baseXor(arrays, iteratee, comparator) {\n      var length = arrays.length;\n      if (length < 2) {\n        return length ? baseUniq(arrays[0]) : [];\n      }\n      var index = -1,\n          result = Array(length);\n\n      while (++index < length) {\n        var array = arrays[index],\n            othIndex = -1;\n\n        while (++othIndex < length) {\n          if (othIndex != index) {\n            result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);\n          }\n        }\n      }\n      return baseUniq(baseFlatten(result, 1), iteratee, comparator);\n    }\n\n    /**\n     * This base implementation of `_.zipObject` which assigns values using `assignFunc`.\n     *\n     * @private\n     * @param {Array} props The property identifiers.\n     * @param {Array} values The property values.\n     * @param {Function} assignFunc The function to assign values.\n     * @returns {Object} Returns the new object.\n     */\n    function baseZipObject(props, values, assignFunc) {\n      var index = -1,\n          length = props.length,\n          valsLength = values.length,\n          result = {};\n\n      while (++index < length) {\n        var value = index < valsLength ? values[index] : undefined;\n        assignFunc(result, props[index], value);\n      }\n      return result;\n    }\n\n    /**\n     * Casts `value` to an empty array if it's not an array like object.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @returns {Array|Object} Returns the cast array-like object.\n     */\n    function castArrayLikeObject(value) {\n      return isArrayLikeObject(value) ? value : [];\n    }\n\n    /**\n     * Casts `value` to `identity` if it's not a function.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @returns {Function} Returns cast function.\n     */\n    function castFunction(value) {\n      return typeof value == 'function' ? value : identity;\n    }\n\n    /**\n     * Casts `value` to a path array if it's not one.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @param {Object} [object] The object to query keys on.\n     * @returns {Array} Returns the cast property path array.\n     */\n    function castPath(value, object) {\n      if (isArray(value)) {\n        return value;\n      }\n      return isKey(value, object) ? [value] : stringToPath(toString(value));\n    }\n\n    /**\n     * A `baseRest` alias which can be replaced with `identity` by module\n     * replacement plugins.\n     *\n     * @private\n     * @type {Function}\n     * @param {Function} func The function to apply a rest parameter to.\n     * @returns {Function} Returns the new function.\n     */\n    var castRest = baseRest;\n\n    /**\n     * Casts `array` to a slice if it's needed.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {number} start The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns the cast slice.\n     */\n    function castSlice(array, start, end) {\n      var length = array.length;\n      end = end === undefined ? length : end;\n      return (!start && end >= length) ? array : baseSlice(array, start, end);\n    }\n\n    /**\n     * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).\n     *\n     * @private\n     * @param {number|Object} id The timer id or timeout object of the timer to clear.\n     */\n    var clearTimeout = ctxClearTimeout || function(id) {\n      return root.clearTimeout(id);\n    };\n\n    /**\n     * Creates a clone of  `buffer`.\n     *\n     * @private\n     * @param {Buffer} buffer The buffer to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Buffer} Returns the cloned buffer.\n     */\n    function cloneBuffer(buffer, isDeep) {\n      if (isDeep) {\n        return buffer.slice();\n      }\n      var length = buffer.length,\n          result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n      buffer.copy(result);\n      return result;\n    }\n\n    /**\n     * Creates a clone of `arrayBuffer`.\n     *\n     * @private\n     * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n     * @returns {ArrayBuffer} Returns the cloned array buffer.\n     */\n    function cloneArrayBuffer(arrayBuffer) {\n      var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n      new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n      return result;\n    }\n\n    /**\n     * Creates a clone of `dataView`.\n     *\n     * @private\n     * @param {Object} dataView The data view to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Object} Returns the cloned data view.\n     */\n    function cloneDataView(dataView, isDeep) {\n      var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n      return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n    }\n\n    /**\n     * Creates a clone of `regexp`.\n     *\n     * @private\n     * @param {Object} regexp The regexp to clone.\n     * @returns {Object} Returns the cloned regexp.\n     */\n    function cloneRegExp(regexp) {\n      var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n      result.lastIndex = regexp.lastIndex;\n      return result;\n    }\n\n    /**\n     * Creates a clone of the `symbol` object.\n     *\n     * @private\n     * @param {Object} symbol The symbol object to clone.\n     * @returns {Object} Returns the cloned symbol object.\n     */\n    function cloneSymbol(symbol) {\n      return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n    }\n\n    /**\n     * Creates a clone of `typedArray`.\n     *\n     * @private\n     * @param {Object} typedArray The typed array to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Object} Returns the cloned typed array.\n     */\n    function cloneTypedArray(typedArray, isDeep) {\n      var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n      return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n    }\n\n    /**\n     * Compares values to sort them in ascending order.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {number} Returns the sort order indicator for `value`.\n     */\n    function compareAscending(value, other) {\n      if (value !== other) {\n        var valIsDefined = value !== undefined,\n            valIsNull = value === null,\n            valIsReflexive = value === value,\n            valIsSymbol = isSymbol(value);\n\n        var othIsDefined = other !== undefined,\n            othIsNull = other === null,\n            othIsReflexive = other === other,\n            othIsSymbol = isSymbol(other);\n\n        if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||\n            (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||\n            (valIsNull && othIsDefined && othIsReflexive) ||\n            (!valIsDefined && othIsReflexive) ||\n            !valIsReflexive) {\n          return 1;\n        }\n        if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||\n            (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||\n            (othIsNull && valIsDefined && valIsReflexive) ||\n            (!othIsDefined && valIsReflexive) ||\n            !othIsReflexive) {\n          return -1;\n        }\n      }\n      return 0;\n    }\n\n    /**\n     * Used by `_.orderBy` to compare multiple properties of a value to another\n     * and stable sort them.\n     *\n     * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,\n     * specify an order of \"desc\" for descending or \"asc\" for ascending sort order\n     * of corresponding values.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {boolean[]|string[]} orders The order to sort by for each property.\n     * @returns {number} Returns the sort order indicator for `object`.\n     */\n    function compareMultiple(object, other, orders) {\n      var index = -1,\n          objCriteria = object.criteria,\n          othCriteria = other.criteria,\n          length = objCriteria.length,\n          ordersLength = orders.length;\n\n      while (++index < length) {\n        var result = compareAscending(objCriteria[index], othCriteria[index]);\n        if (result) {\n          if (index >= ordersLength) {\n            return result;\n          }\n          var order = orders[index];\n          return result * (order == 'desc' ? -1 : 1);\n        }\n      }\n      // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications\n      // that causes it, under certain circumstances, to provide the same value for\n      // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247\n      // for more details.\n      //\n      // This also ensures a stable sort in V8 and other engines.\n      // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.\n      return object.index - other.index;\n    }\n\n    /**\n     * Creates an array that is the composition of partially applied arguments,\n     * placeholders, and provided arguments into a single array of arguments.\n     *\n     * @private\n     * @param {Array} args The provided arguments.\n     * @param {Array} partials The arguments to prepend to those provided.\n     * @param {Array} holders The `partials` placeholder indexes.\n     * @params {boolean} [isCurried] Specify composing for a curried function.\n     * @returns {Array} Returns the new array of composed arguments.\n     */\n    function composeArgs(args, partials, holders, isCurried) {\n      var argsIndex = -1,\n          argsLength = args.length,\n          holdersLength = holders.length,\n          leftIndex = -1,\n          leftLength = partials.length,\n          rangeLength = nativeMax(argsLength - holdersLength, 0),\n          result = Array(leftLength + rangeLength),\n          isUncurried = !isCurried;\n\n      while (++leftIndex < leftLength) {\n        result[leftIndex] = partials[leftIndex];\n      }\n      while (++argsIndex < holdersLength) {\n        if (isUncurried || argsIndex < argsLength) {\n          result[holders[argsIndex]] = args[argsIndex];\n        }\n      }\n      while (rangeLength--) {\n        result[leftIndex++] = args[argsIndex++];\n      }\n      return result;\n    }\n\n    /**\n     * This function is like `composeArgs` except that the arguments composition\n     * is tailored for `_.partialRight`.\n     *\n     * @private\n     * @param {Array} args The provided arguments.\n     * @param {Array} partials The arguments to append to those provided.\n     * @param {Array} holders The `partials` placeholder indexes.\n     * @params {boolean} [isCurried] Specify composing for a curried function.\n     * @returns {Array} Returns the new array of composed arguments.\n     */\n    function composeArgsRight(args, partials, holders, isCurried) {\n      var argsIndex = -1,\n          argsLength = args.length,\n          holdersIndex = -1,\n          holdersLength = holders.length,\n          rightIndex = -1,\n          rightLength = partials.length,\n          rangeLength = nativeMax(argsLength - holdersLength, 0),\n          result = Array(rangeLength + rightLength),\n          isUncurried = !isCurried;\n\n      while (++argsIndex < rangeLength) {\n        result[argsIndex] = args[argsIndex];\n      }\n      var offset = argsIndex;\n      while (++rightIndex < rightLength) {\n        result[offset + rightIndex] = partials[rightIndex];\n      }\n      while (++holdersIndex < holdersLength) {\n        if (isUncurried || argsIndex < argsLength) {\n          result[offset + holders[holdersIndex]] = args[argsIndex++];\n        }\n      }\n      return result;\n    }\n\n    /**\n     * Copies the values of `source` to `array`.\n     *\n     * @private\n     * @param {Array} source The array to copy values from.\n     * @param {Array} [array=[]] The array to copy values to.\n     * @returns {Array} Returns `array`.\n     */\n    function copyArray(source, array) {\n      var index = -1,\n          length = source.length;\n\n      array || (array = Array(length));\n      while (++index < length) {\n        array[index] = source[index];\n      }\n      return array;\n    }\n\n    /**\n     * Copies properties of `source` to `object`.\n     *\n     * @private\n     * @param {Object} source The object to copy properties from.\n     * @param {Array} props The property identifiers to copy.\n     * @param {Object} [object={}] The object to copy properties to.\n     * @param {Function} [customizer] The function to customize copied values.\n     * @returns {Object} Returns `object`.\n     */\n    function copyObject(source, props, object, customizer) {\n      var isNew = !object;\n      object || (object = {});\n\n      var index = -1,\n          length = props.length;\n\n      while (++index < length) {\n        var key = props[index];\n\n        var newValue = customizer\n          ? customizer(object[key], source[key], key, object, source)\n          : undefined;\n\n        if (newValue === undefined) {\n          newValue = source[key];\n        }\n        if (isNew) {\n          baseAssignValue(object, key, newValue);\n        } else {\n          assignValue(object, key, newValue);\n        }\n      }\n      return object;\n    }\n\n    /**\n     * Copies own symbols of `source` to `object`.\n     *\n     * @private\n     * @param {Object} source The object to copy symbols from.\n     * @param {Object} [object={}] The object to copy symbols to.\n     * @returns {Object} Returns `object`.\n     */\n    function copySymbols(source, object) {\n      return copyObject(source, getSymbols(source), object);\n    }\n\n    /**\n     * Copies own and inherited symbols of `source` to `object`.\n     *\n     * @private\n     * @param {Object} source The object to copy symbols from.\n     * @param {Object} [object={}] The object to copy symbols to.\n     * @returns {Object} Returns `object`.\n     */\n    function copySymbolsIn(source, object) {\n      return copyObject(source, getSymbolsIn(source), object);\n    }\n\n    /**\n     * Creates a function like `_.groupBy`.\n     *\n     * @private\n     * @param {Function} setter The function to set accumulator values.\n     * @param {Function} [initializer] The accumulator object initializer.\n     * @returns {Function} Returns the new aggregator function.\n     */\n    function createAggregator(setter, initializer) {\n      return function(collection, iteratee) {\n        var func = isArray(collection) ? arrayAggregator : baseAggregator,\n            accumulator = initializer ? initializer() : {};\n\n        return func(collection, setter, getIteratee(iteratee, 2), accumulator);\n      };\n    }\n\n    /**\n     * Creates a function like `_.assign`.\n     *\n     * @private\n     * @param {Function} assigner The function to assign values.\n     * @returns {Function} Returns the new assigner function.\n     */\n    function createAssigner(assigner) {\n      return baseRest(function(object, sources) {\n        var index = -1,\n            length = sources.length,\n            customizer = length > 1 ? sources[length - 1] : undefined,\n            guard = length > 2 ? sources[2] : undefined;\n\n        customizer = (assigner.length > 3 && typeof customizer == 'function')\n          ? (length--, customizer)\n          : undefined;\n\n        if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n          customizer = length < 3 ? undefined : customizer;\n          length = 1;\n        }\n        object = Object(object);\n        while (++index < length) {\n          var source = sources[index];\n          if (source) {\n            assigner(object, source, index, customizer);\n          }\n        }\n        return object;\n      });\n    }\n\n    /**\n     * Creates a `baseEach` or `baseEachRight` function.\n     *\n     * @private\n     * @param {Function} eachFunc The function to iterate over a collection.\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new base function.\n     */\n    function createBaseEach(eachFunc, fromRight) {\n      return function(collection, iteratee) {\n        if (collection == null) {\n          return collection;\n        }\n        if (!isArrayLike(collection)) {\n          return eachFunc(collection, iteratee);\n        }\n        var length = collection.length,\n            index = fromRight ? length : -1,\n            iterable = Object(collection);\n\n        while ((fromRight ? index-- : ++index < length)) {\n          if (iteratee(iterable[index], index, iterable) === false) {\n            break;\n          }\n        }\n        return collection;\n      };\n    }\n\n    /**\n     * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n     *\n     * @private\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new base function.\n     */\n    function createBaseFor(fromRight) {\n      return function(object, iteratee, keysFunc) {\n        var index = -1,\n            iterable = Object(object),\n            props = keysFunc(object),\n            length = props.length;\n\n        while (length--) {\n          var key = props[fromRight ? length : ++index];\n          if (iteratee(iterable[key], key, iterable) === false) {\n            break;\n          }\n        }\n        return object;\n      };\n    }\n\n    /**\n     * Creates a function that wraps `func` to invoke it with the optional `this`\n     * binding of `thisArg`.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createBind(func, bitmask, thisArg) {\n      var isBind = bitmask & WRAP_BIND_FLAG,\n          Ctor = createCtor(func);\n\n      function wrapper() {\n        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n        return fn.apply(isBind ? thisArg : this, arguments);\n      }\n      return wrapper;\n    }\n\n    /**\n     * Creates a function like `_.lowerFirst`.\n     *\n     * @private\n     * @param {string} methodName The name of the `String` case method to use.\n     * @returns {Function} Returns the new case function.\n     */\n    function createCaseFirst(methodName) {\n      return function(string) {\n        string = toString(string);\n\n        var strSymbols = hasUnicode(string)\n          ? stringToArray(string)\n          : undefined;\n\n        var chr = strSymbols\n          ? strSymbols[0]\n          : string.charAt(0);\n\n        var trailing = strSymbols\n          ? castSlice(strSymbols, 1).join('')\n          : string.slice(1);\n\n        return chr[methodName]() + trailing;\n      };\n    }\n\n    /**\n     * Creates a function like `_.camelCase`.\n     *\n     * @private\n     * @param {Function} callback The function to combine each word.\n     * @returns {Function} Returns the new compounder function.\n     */\n    function createCompounder(callback) {\n      return function(string) {\n        return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');\n      };\n    }\n\n    /**\n     * Creates a function that produces an instance of `Ctor` regardless of\n     * whether it was invoked as part of a `new` expression or by `call` or `apply`.\n     *\n     * @private\n     * @param {Function} Ctor The constructor to wrap.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createCtor(Ctor) {\n      return function() {\n        // Use a `switch` statement to work with class constructors. See\n        // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist\n        // for more details.\n        var args = arguments;\n        switch (args.length) {\n          case 0: return new Ctor;\n          case 1: return new Ctor(args[0]);\n          case 2: return new Ctor(args[0], args[1]);\n          case 3: return new Ctor(args[0], args[1], args[2]);\n          case 4: return new Ctor(args[0], args[1], args[2], args[3]);\n          case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);\n          case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);\n          case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);\n        }\n        var thisBinding = baseCreate(Ctor.prototype),\n            result = Ctor.apply(thisBinding, args);\n\n        // Mimic the constructor's `return` behavior.\n        // See https://es5.github.io/#x13.2.2 for more details.\n        return isObject(result) ? result : thisBinding;\n      };\n    }\n\n    /**\n     * Creates a function that wraps `func` to enable currying.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {number} arity The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createCurry(func, bitmask, arity) {\n      var Ctor = createCtor(func);\n\n      function wrapper() {\n        var length = arguments.length,\n            args = Array(length),\n            index = length,\n            placeholder = getHolder(wrapper);\n\n        while (index--) {\n          args[index] = arguments[index];\n        }\n        var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)\n          ? []\n          : replaceHolders(args, placeholder);\n\n        length -= holders.length;\n        if (length < arity) {\n          return createRecurry(\n            func, bitmask, createHybrid, wrapper.placeholder, undefined,\n            args, holders, undefined, undefined, arity - length);\n        }\n        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n        return apply(fn, this, args);\n      }\n      return wrapper;\n    }\n\n    /**\n     * Creates a `_.find` or `_.findLast` function.\n     *\n     * @private\n     * @param {Function} findIndexFunc The function to find the collection index.\n     * @returns {Function} Returns the new find function.\n     */\n    function createFind(findIndexFunc) {\n      return function(collection, predicate, fromIndex) {\n        var iterable = Object(collection);\n        if (!isArrayLike(collection)) {\n          var iteratee = getIteratee(predicate, 3);\n          collection = keys(collection);\n          predicate = function(key) { return iteratee(iterable[key], key, iterable); };\n        }\n        var index = findIndexFunc(collection, predicate, fromIndex);\n        return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;\n      };\n    }\n\n    /**\n     * Creates a `_.flow` or `_.flowRight` function.\n     *\n     * @private\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new flow function.\n     */\n    function createFlow(fromRight) {\n      return flatRest(function(funcs) {\n        var length = funcs.length,\n            index = length,\n            prereq = LodashWrapper.prototype.thru;\n\n        if (fromRight) {\n          funcs.reverse();\n        }\n        while (index--) {\n          var func = funcs[index];\n          if (typeof func != 'function') {\n            throw new TypeError(FUNC_ERROR_TEXT);\n          }\n          if (prereq && !wrapper && getFuncName(func) == 'wrapper') {\n            var wrapper = new LodashWrapper([], true);\n          }\n        }\n        index = wrapper ? index : length;\n        while (++index < length) {\n          func = funcs[index];\n\n          var funcName = getFuncName(func),\n              data = funcName == 'wrapper' ? getData(func) : undefined;\n\n          if (data && isLaziable(data[0]) &&\n                data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&\n                !data[4].length && data[9] == 1\n              ) {\n            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);\n          } else {\n            wrapper = (func.length == 1 && isLaziable(func))\n              ? wrapper[funcName]()\n              : wrapper.thru(func);\n          }\n        }\n        return function() {\n          var args = arguments,\n              value = args[0];\n\n          if (wrapper && args.length == 1 && isArray(value)) {\n            return wrapper.plant(value).value();\n          }\n          var index = 0,\n              result = length ? funcs[index].apply(this, args) : value;\n\n          while (++index < length) {\n            result = funcs[index].call(this, result);\n          }\n          return result;\n        };\n      });\n    }\n\n    /**\n     * Creates a function that wraps `func` to invoke it with optional `this`\n     * binding of `thisArg`, partial application, and currying.\n     *\n     * @private\n     * @param {Function|string} func The function or method name to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @param {Array} [partials] The arguments to prepend to those provided to\n     *  the new function.\n     * @param {Array} [holders] The `partials` placeholder indexes.\n     * @param {Array} [partialsRight] The arguments to append to those provided\n     *  to the new function.\n     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.\n     * @param {Array} [argPos] The argument positions of the new function.\n     * @param {number} [ary] The arity cap of `func`.\n     * @param {number} [arity] The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {\n      var isAry = bitmask & WRAP_ARY_FLAG,\n          isBind = bitmask & WRAP_BIND_FLAG,\n          isBindKey = bitmask & WRAP_BIND_KEY_FLAG,\n          isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),\n          isFlip = bitmask & WRAP_FLIP_FLAG,\n          Ctor = isBindKey ? undefined : createCtor(func);\n\n      function wrapper() {\n        var length = arguments.length,\n            args = Array(length),\n            index = length;\n\n        while (index--) {\n          args[index] = arguments[index];\n        }\n        if (isCurried) {\n          var placeholder = getHolder(wrapper),\n              holdersCount = countHolders(args, placeholder);\n        }\n        if (partials) {\n          args = composeArgs(args, partials, holders, isCurried);\n        }\n        if (partialsRight) {\n          args = composeArgsRight(args, partialsRight, holdersRight, isCurried);\n        }\n        length -= holdersCount;\n        if (isCurried && length < arity) {\n          var newHolders = replaceHolders(args, placeholder);\n          return createRecurry(\n            func, bitmask, createHybrid, wrapper.placeholder, thisArg,\n            args, newHolders, argPos, ary, arity - length\n          );\n        }\n        var thisBinding = isBind ? thisArg : this,\n            fn = isBindKey ? thisBinding[func] : func;\n\n        length = args.length;\n        if (argPos) {\n          args = reorder(args, argPos);\n        } else if (isFlip && length > 1) {\n          args.reverse();\n        }\n        if (isAry && ary < length) {\n          args.length = ary;\n        }\n        if (this && this !== root && this instanceof wrapper) {\n          fn = Ctor || createCtor(fn);\n        }\n        return fn.apply(thisBinding, args);\n      }\n      return wrapper;\n    }\n\n    /**\n     * Creates a function like `_.invertBy`.\n     *\n     * @private\n     * @param {Function} setter The function to set accumulator values.\n     * @param {Function} toIteratee The function to resolve iteratees.\n     * @returns {Function} Returns the new inverter function.\n     */\n    function createInverter(setter, toIteratee) {\n      return function(object, iteratee) {\n        return baseInverter(object, setter, toIteratee(iteratee), {});\n      };\n    }\n\n    /**\n     * Creates a function that performs a mathematical operation on two values.\n     *\n     * @private\n     * @param {Function} operator The function to perform the operation.\n     * @param {number} [defaultValue] The value used for `undefined` arguments.\n     * @returns {Function} Returns the new mathematical operation function.\n     */\n    function createMathOperation(operator, defaultValue) {\n      return function(value, other) {\n        var result;\n        if (value === undefined && other === undefined) {\n          return defaultValue;\n        }\n        if (value !== undefined) {\n          result = value;\n        }\n        if (other !== undefined) {\n          if (result === undefined) {\n            return other;\n          }\n          if (typeof value == 'string' || typeof other == 'string') {\n            value = baseToString(value);\n            other = baseToString(other);\n          } else {\n            value = baseToNumber(value);\n            other = baseToNumber(other);\n          }\n          result = operator(value, other);\n        }\n        return result;\n      };\n    }\n\n    /**\n     * Creates a function like `_.over`.\n     *\n     * @private\n     * @param {Function} arrayFunc The function to iterate over iteratees.\n     * @returns {Function} Returns the new over function.\n     */\n    function createOver(arrayFunc) {\n      return flatRest(function(iteratees) {\n        iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n        return baseRest(function(args) {\n          var thisArg = this;\n          return arrayFunc(iteratees, function(iteratee) {\n            return apply(iteratee, thisArg, args);\n          });\n        });\n      });\n    }\n\n    /**\n     * Creates the padding for `string` based on `length`. The `chars` string\n     * is truncated if the number of characters exceeds `length`.\n     *\n     * @private\n     * @param {number} length The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padding for `string`.\n     */\n    function createPadding(length, chars) {\n      chars = chars === undefined ? ' ' : baseToString(chars);\n\n      var charsLength = chars.length;\n      if (charsLength < 2) {\n        return charsLength ? baseRepeat(chars, length) : chars;\n      }\n      var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));\n      return hasUnicode(chars)\n        ? castSlice(stringToArray(result), 0, length).join('')\n        : result.slice(0, length);\n    }\n\n    /**\n     * Creates a function that wraps `func` to invoke it with the `this` binding\n     * of `thisArg` and `partials` prepended to the arguments it receives.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {*} thisArg The `this` binding of `func`.\n     * @param {Array} partials The arguments to prepend to those provided to\n     *  the new function.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createPartial(func, bitmask, thisArg, partials) {\n      var isBind = bitmask & WRAP_BIND_FLAG,\n          Ctor = createCtor(func);\n\n      function wrapper() {\n        var argsIndex = -1,\n            argsLength = arguments.length,\n            leftIndex = -1,\n            leftLength = partials.length,\n            args = Array(leftLength + argsLength),\n            fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n\n        while (++leftIndex < leftLength) {\n          args[leftIndex] = partials[leftIndex];\n        }\n        while (argsLength--) {\n          args[leftIndex++] = arguments[++argsIndex];\n        }\n        return apply(fn, isBind ? thisArg : this, args);\n      }\n      return wrapper;\n    }\n\n    /**\n     * Creates a `_.range` or `_.rangeRight` function.\n     *\n     * @private\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new range function.\n     */\n    function createRange(fromRight) {\n      return function(start, end, step) {\n        if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {\n          end = step = undefined;\n        }\n        // Ensure the sign of `-0` is preserved.\n        start = toFinite(start);\n        if (end === undefined) {\n          end = start;\n          start = 0;\n        } else {\n          end = toFinite(end);\n        }\n        step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);\n        return baseRange(start, end, step, fromRight);\n      };\n    }\n\n    /**\n     * Creates a function that performs a relational operation on two values.\n     *\n     * @private\n     * @param {Function} operator The function to perform the operation.\n     * @returns {Function} Returns the new relational operation function.\n     */\n    function createRelationalOperation(operator) {\n      return function(value, other) {\n        if (!(typeof value == 'string' && typeof other == 'string')) {\n          value = toNumber(value);\n          other = toNumber(other);\n        }\n        return operator(value, other);\n      };\n    }\n\n    /**\n     * Creates a function that wraps `func` to continue currying.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {Function} wrapFunc The function to create the `func` wrapper.\n     * @param {*} placeholder The placeholder value.\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @param {Array} [partials] The arguments to prepend to those provided to\n     *  the new function.\n     * @param {Array} [holders] The `partials` placeholder indexes.\n     * @param {Array} [argPos] The argument positions of the new function.\n     * @param {number} [ary] The arity cap of `func`.\n     * @param {number} [arity] The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {\n      var isCurry = bitmask & WRAP_CURRY_FLAG,\n          newHolders = isCurry ? holders : undefined,\n          newHoldersRight = isCurry ? undefined : holders,\n          newPartials = isCurry ? partials : undefined,\n          newPartialsRight = isCurry ? undefined : partials;\n\n      bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);\n      bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);\n\n      if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {\n        bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);\n      }\n      var newData = [\n        func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,\n        newHoldersRight, argPos, ary, arity\n      ];\n\n      var result = wrapFunc.apply(undefined, newData);\n      if (isLaziable(func)) {\n        setData(result, newData);\n      }\n      result.placeholder = placeholder;\n      return setWrapToString(result, func, bitmask);\n    }\n\n    /**\n     * Creates a function like `_.round`.\n     *\n     * @private\n     * @param {string} methodName The name of the `Math` method to use when rounding.\n     * @returns {Function} Returns the new round function.\n     */\n    function createRound(methodName) {\n      var func = Math[methodName];\n      return function(number, precision) {\n        number = toNumber(number);\n        precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);\n        if (precision && nativeIsFinite(number)) {\n          // Shift with exponential notation to avoid floating-point issues.\n          // See [MDN](https://mdn.io/round#Examples) for more details.\n          var pair = (toString(number) + 'e').split('e'),\n              value = func(pair[0] + 'e' + (+pair[1] + precision));\n\n          pair = (toString(value) + 'e').split('e');\n          return +(pair[0] + 'e' + (+pair[1] - precision));\n        }\n        return func(number);\n      };\n    }\n\n    /**\n     * Creates a set object of `values`.\n     *\n     * @private\n     * @param {Array} values The values to add to the set.\n     * @returns {Object} Returns the new set.\n     */\n    var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {\n      return new Set(values);\n    };\n\n    /**\n     * Creates a `_.toPairs` or `_.toPairsIn` function.\n     *\n     * @private\n     * @param {Function} keysFunc The function to get the keys of a given object.\n     * @returns {Function} Returns the new pairs function.\n     */\n    function createToPairs(keysFunc) {\n      return function(object) {\n        var tag = getTag(object);\n        if (tag == mapTag) {\n          return mapToArray(object);\n        }\n        if (tag == setTag) {\n          return setToPairs(object);\n        }\n        return baseToPairs(object, keysFunc(object));\n      };\n    }\n\n    /**\n     * Creates a function that either curries or invokes `func` with optional\n     * `this` binding and partially applied arguments.\n     *\n     * @private\n     * @param {Function|string} func The function or method name to wrap.\n     * @param {number} bitmask The bitmask flags.\n     *    1 - `_.bind`\n     *    2 - `_.bindKey`\n     *    4 - `_.curry` or `_.curryRight` of a bound function\n     *    8 - `_.curry`\n     *   16 - `_.curryRight`\n     *   32 - `_.partial`\n     *   64 - `_.partialRight`\n     *  128 - `_.rearg`\n     *  256 - `_.ary`\n     *  512 - `_.flip`\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @param {Array} [partials] The arguments to be partially applied.\n     * @param {Array} [holders] The `partials` placeholder indexes.\n     * @param {Array} [argPos] The argument positions of the new function.\n     * @param {number} [ary] The arity cap of `func`.\n     * @param {number} [arity] The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {\n      var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;\n      if (!isBindKey && typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      var length = partials ? partials.length : 0;\n      if (!length) {\n        bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);\n        partials = holders = undefined;\n      }\n      ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);\n      arity = arity === undefined ? arity : toInteger(arity);\n      length -= holders ? holders.length : 0;\n\n      if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {\n        var partialsRight = partials,\n            holdersRight = holders;\n\n        partials = holders = undefined;\n      }\n      var data = isBindKey ? undefined : getData(func);\n\n      var newData = [\n        func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,\n        argPos, ary, arity\n      ];\n\n      if (data) {\n        mergeData(newData, data);\n      }\n      func = newData[0];\n      bitmask = newData[1];\n      thisArg = newData[2];\n      partials = newData[3];\n      holders = newData[4];\n      arity = newData[9] = newData[9] === undefined\n        ? (isBindKey ? 0 : func.length)\n        : nativeMax(newData[9] - length, 0);\n\n      if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {\n        bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);\n      }\n      if (!bitmask || bitmask == WRAP_BIND_FLAG) {\n        var result = createBind(func, bitmask, thisArg);\n      } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {\n        result = createCurry(func, bitmask, arity);\n      } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {\n        result = createPartial(func, bitmask, thisArg, partials);\n      } else {\n        result = createHybrid.apply(undefined, newData);\n      }\n      var setter = data ? baseSetData : setData;\n      return setWrapToString(setter(result, newData), func, bitmask);\n    }\n\n    /**\n     * Used by `_.defaults` to customize its `_.assignIn` use to assign properties\n     * of source objects to the destination object for all destination properties\n     * that resolve to `undefined`.\n     *\n     * @private\n     * @param {*} objValue The destination value.\n     * @param {*} srcValue The source value.\n     * @param {string} key The key of the property to assign.\n     * @param {Object} object The parent object of `objValue`.\n     * @returns {*} Returns the value to assign.\n     */\n    function customDefaultsAssignIn(objValue, srcValue, key, object) {\n      if (objValue === undefined ||\n          (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n        return srcValue;\n      }\n      return objValue;\n    }\n\n    /**\n     * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source\n     * objects into destination objects that are passed thru.\n     *\n     * @private\n     * @param {*} objValue The destination value.\n     * @param {*} srcValue The source value.\n     * @param {string} key The key of the property to merge.\n     * @param {Object} object The parent object of `objValue`.\n     * @param {Object} source The parent object of `srcValue`.\n     * @param {Object} [stack] Tracks traversed source values and their merged\n     *  counterparts.\n     * @returns {*} Returns the value to assign.\n     */\n    function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {\n      if (isObject(objValue) && isObject(srcValue)) {\n        // Recursively merge objects and arrays (susceptible to call stack limits).\n        stack.set(srcValue, objValue);\n        baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);\n        stack['delete'](srcValue);\n      }\n      return objValue;\n    }\n\n    /**\n     * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain\n     * objects.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @param {string} key The key of the property to inspect.\n     * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.\n     */\n    function customOmitClone(value) {\n      return isPlainObject(value) ? undefined : value;\n    }\n\n    /**\n     * A specialized version of `baseIsEqualDeep` for arrays with support for\n     * partial deep comparisons.\n     *\n     * @private\n     * @param {Array} array The array to compare.\n     * @param {Array} other The other array to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} stack Tracks traversed `array` and `other` objects.\n     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n     */\n    function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n          arrLength = array.length,\n          othLength = other.length;\n\n      if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n        return false;\n      }\n      // Check that cyclic values are equal.\n      var arrStacked = stack.get(array);\n      var othStacked = stack.get(other);\n      if (arrStacked && othStacked) {\n        return arrStacked == other && othStacked == array;\n      }\n      var index = -1,\n          result = true,\n          seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n      stack.set(array, other);\n      stack.set(other, array);\n\n      // Ignore non-index properties.\n      while (++index < arrLength) {\n        var arrValue = array[index],\n            othValue = other[index];\n\n        if (customizer) {\n          var compared = isPartial\n            ? customizer(othValue, arrValue, index, other, array, stack)\n            : customizer(arrValue, othValue, index, array, other, stack);\n        }\n        if (compared !== undefined) {\n          if (compared) {\n            continue;\n          }\n          result = false;\n          break;\n        }\n        // Recursively compare arrays (susceptible to call stack limits).\n        if (seen) {\n          if (!arraySome(other, function(othValue, othIndex) {\n                if (!cacheHas(seen, othIndex) &&\n                    (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n                  return seen.push(othIndex);\n                }\n              })) {\n            result = false;\n            break;\n          }\n        } else if (!(\n              arrValue === othValue ||\n                equalFunc(arrValue, othValue, bitmask, customizer, stack)\n            )) {\n          result = false;\n          break;\n        }\n      }\n      stack['delete'](array);\n      stack['delete'](other);\n      return result;\n    }\n\n    /**\n     * A specialized version of `baseIsEqualDeep` for comparing objects of\n     * the same `toStringTag`.\n     *\n     * **Note:** This function only supports comparing values with tags of\n     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {string} tag The `toStringTag` of the objects to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} stack Tracks traversed `object` and `other` objects.\n     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n     */\n    function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n      switch (tag) {\n        case dataViewTag:\n          if ((object.byteLength != other.byteLength) ||\n              (object.byteOffset != other.byteOffset)) {\n            return false;\n          }\n          object = object.buffer;\n          other = other.buffer;\n\n        case arrayBufferTag:\n          if ((object.byteLength != other.byteLength) ||\n              !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n            return false;\n          }\n          return true;\n\n        case boolTag:\n        case dateTag:\n        case numberTag:\n          // Coerce booleans to `1` or `0` and dates to milliseconds.\n          // Invalid dates are coerced to `NaN`.\n          return eq(+object, +other);\n\n        case errorTag:\n          return object.name == other.name && object.message == other.message;\n\n        case regexpTag:\n        case stringTag:\n          // Coerce regexes to strings and treat strings, primitives and objects,\n          // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n          // for more details.\n          return object == (other + '');\n\n        case mapTag:\n          var convert = mapToArray;\n\n        case setTag:\n          var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n          convert || (convert = setToArray);\n\n          if (object.size != other.size && !isPartial) {\n            return false;\n          }\n          // Assume cyclic values are equal.\n          var stacked = stack.get(object);\n          if (stacked) {\n            return stacked == other;\n          }\n          bitmask |= COMPARE_UNORDERED_FLAG;\n\n          // Recursively compare objects (susceptible to call stack limits).\n          stack.set(object, other);\n          var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n          stack['delete'](object);\n          return result;\n\n        case symbolTag:\n          if (symbolValueOf) {\n            return symbolValueOf.call(object) == symbolValueOf.call(other);\n          }\n      }\n      return false;\n    }\n\n    /**\n     * A specialized version of `baseIsEqualDeep` for objects with support for\n     * partial deep comparisons.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} stack Tracks traversed `object` and `other` objects.\n     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n     */\n    function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n          objProps = getAllKeys(object),\n          objLength = objProps.length,\n          othProps = getAllKeys(other),\n          othLength = othProps.length;\n\n      if (objLength != othLength && !isPartial) {\n        return false;\n      }\n      var index = objLength;\n      while (index--) {\n        var key = objProps[index];\n        if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n          return false;\n        }\n      }\n      // Check that cyclic values are equal.\n      var objStacked = stack.get(object);\n      var othStacked = stack.get(other);\n      if (objStacked && othStacked) {\n        return objStacked == other && othStacked == object;\n      }\n      var result = true;\n      stack.set(object, other);\n      stack.set(other, object);\n\n      var skipCtor = isPartial;\n      while (++index < objLength) {\n        key = objProps[index];\n        var objValue = object[key],\n            othValue = other[key];\n\n        if (customizer) {\n          var compared = isPartial\n            ? customizer(othValue, objValue, key, other, object, stack)\n            : customizer(objValue, othValue, key, object, other, stack);\n        }\n        // Recursively compare objects (susceptible to call stack limits).\n        if (!(compared === undefined\n              ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n              : compared\n            )) {\n          result = false;\n          break;\n        }\n        skipCtor || (skipCtor = key == 'constructor');\n      }\n      if (result && !skipCtor) {\n        var objCtor = object.constructor,\n            othCtor = other.constructor;\n\n        // Non `Object` object instances with different constructors are not equal.\n        if (objCtor != othCtor &&\n            ('constructor' in object && 'constructor' in other) &&\n            !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n              typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n          result = false;\n        }\n      }\n      stack['delete'](object);\n      stack['delete'](other);\n      return result;\n    }\n\n    /**\n     * A specialized version of `baseRest` which flattens the rest array.\n     *\n     * @private\n     * @param {Function} func The function to apply a rest parameter to.\n     * @returns {Function} Returns the new function.\n     */\n    function flatRest(func) {\n      return setToString(overRest(func, undefined, flatten), func + '');\n    }\n\n    /**\n     * Creates an array of own enumerable property names and symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names and symbols.\n     */\n    function getAllKeys(object) {\n      return baseGetAllKeys(object, keys, getSymbols);\n    }\n\n    /**\n     * Creates an array of own and inherited enumerable property names and\n     * symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names and symbols.\n     */\n    function getAllKeysIn(object) {\n      return baseGetAllKeys(object, keysIn, getSymbolsIn);\n    }\n\n    /**\n     * Gets metadata for `func`.\n     *\n     * @private\n     * @param {Function} func The function to query.\n     * @returns {*} Returns the metadata for `func`.\n     */\n    var getData = !metaMap ? noop : function(func) {\n      return metaMap.get(func);\n    };\n\n    /**\n     * Gets the name of `func`.\n     *\n     * @private\n     * @param {Function} func The function to query.\n     * @returns {string} Returns the function name.\n     */\n    function getFuncName(func) {\n      var result = (func.name + ''),\n          array = realNames[result],\n          length = hasOwnProperty.call(realNames, result) ? array.length : 0;\n\n      while (length--) {\n        var data = array[length],\n            otherFunc = data.func;\n        if (otherFunc == null || otherFunc == func) {\n          return data.name;\n        }\n      }\n      return result;\n    }\n\n    /**\n     * Gets the argument placeholder value for `func`.\n     *\n     * @private\n     * @param {Function} func The function to inspect.\n     * @returns {*} Returns the placeholder value.\n     */\n    function getHolder(func) {\n      var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;\n      return object.placeholder;\n    }\n\n    /**\n     * Gets the appropriate \"iteratee\" function. If `_.iteratee` is customized,\n     * this function returns the custom method, otherwise it returns `baseIteratee`.\n     * If arguments are provided, the chosen function is invoked with them and\n     * its result is returned.\n     *\n     * @private\n     * @param {*} [value] The value to convert to an iteratee.\n     * @param {number} [arity] The arity of the created iteratee.\n     * @returns {Function} Returns the chosen function or its result.\n     */\n    function getIteratee() {\n      var result = lodash.iteratee || iteratee;\n      result = result === iteratee ? baseIteratee : result;\n      return arguments.length ? result(arguments[0], arguments[1]) : result;\n    }\n\n    /**\n     * Gets the data for `map`.\n     *\n     * @private\n     * @param {Object} map The map to query.\n     * @param {string} key The reference key.\n     * @returns {*} Returns the map data.\n     */\n    function getMapData(map, key) {\n      var data = map.__data__;\n      return isKeyable(key)\n        ? data[typeof key == 'string' ? 'string' : 'hash']\n        : data.map;\n    }\n\n    /**\n     * Gets the property names, values, and compare flags of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the match data of `object`.\n     */\n    function getMatchData(object) {\n      var result = keys(object),\n          length = result.length;\n\n      while (length--) {\n        var key = result[length],\n            value = object[key];\n\n        result[length] = [key, value, isStrictComparable(value)];\n      }\n      return result;\n    }\n\n    /**\n     * Gets the native function at `key` of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {string} key The key of the method to get.\n     * @returns {*} Returns the function if it's native, else `undefined`.\n     */\n    function getNative(object, key) {\n      var value = getValue(object, key);\n      return baseIsNative(value) ? value : undefined;\n    }\n\n    /**\n     * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @returns {string} Returns the raw `toStringTag`.\n     */\n    function getRawTag(value) {\n      var isOwn = hasOwnProperty.call(value, symToStringTag),\n          tag = value[symToStringTag];\n\n      try {\n        value[symToStringTag] = undefined;\n        var unmasked = true;\n      } catch (e) {}\n\n      var result = nativeObjectToString.call(value);\n      if (unmasked) {\n        if (isOwn) {\n          value[symToStringTag] = tag;\n        } else {\n          delete value[symToStringTag];\n        }\n      }\n      return result;\n    }\n\n    /**\n     * Creates an array of the own enumerable symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of symbols.\n     */\n    var getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n      if (object == null) {\n        return [];\n      }\n      object = Object(object);\n      return arrayFilter(nativeGetSymbols(object), function(symbol) {\n        return propertyIsEnumerable.call(object, symbol);\n      });\n    };\n\n    /**\n     * Creates an array of the own and inherited enumerable symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of symbols.\n     */\n    var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n      var result = [];\n      while (object) {\n        arrayPush(result, getSymbols(object));\n        object = getPrototype(object);\n      }\n      return result;\n    };\n\n    /**\n     * Gets the `toStringTag` of `value`.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @returns {string} Returns the `toStringTag`.\n     */\n    var getTag = baseGetTag;\n\n    // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\n    if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n        (Map && getTag(new Map) != mapTag) ||\n        (Promise && getTag(Promise.resolve()) != promiseTag) ||\n        (Set && getTag(new Set) != setTag) ||\n        (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n      getTag = function(value) {\n        var result = baseGetTag(value),\n            Ctor = result == objectTag ? value.constructor : undefined,\n            ctorString = Ctor ? toSource(Ctor) : '';\n\n        if (ctorString) {\n          switch (ctorString) {\n            case dataViewCtorString: return dataViewTag;\n            case mapCtorString: return mapTag;\n            case promiseCtorString: return promiseTag;\n            case setCtorString: return setTag;\n            case weakMapCtorString: return weakMapTag;\n          }\n        }\n        return result;\n      };\n    }\n\n    /**\n     * Gets the view, applying any `transforms` to the `start` and `end` positions.\n     *\n     * @private\n     * @param {number} start The start of the view.\n     * @param {number} end The end of the view.\n     * @param {Array} transforms The transformations to apply to the view.\n     * @returns {Object} Returns an object containing the `start` and `end`\n     *  positions of the view.\n     */\n    function getView(start, end, transforms) {\n      var index = -1,\n          length = transforms.length;\n\n      while (++index < length) {\n        var data = transforms[index],\n            size = data.size;\n\n        switch (data.type) {\n          case 'drop':      start += size; break;\n          case 'dropRight': end -= size; break;\n          case 'take':      end = nativeMin(end, start + size); break;\n          case 'takeRight': start = nativeMax(start, end - size); break;\n        }\n      }\n      return { 'start': start, 'end': end };\n    }\n\n    /**\n     * Extracts wrapper details from the `source` body comment.\n     *\n     * @private\n     * @param {string} source The source to inspect.\n     * @returns {Array} Returns the wrapper details.\n     */\n    function getWrapDetails(source) {\n      var match = source.match(reWrapDetails);\n      return match ? match[1].split(reSplitDetails) : [];\n    }\n\n    /**\n     * Checks if `path` exists on `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path to check.\n     * @param {Function} hasFunc The function to check properties.\n     * @returns {boolean} Returns `true` if `path` exists, else `false`.\n     */\n    function hasPath(object, path, hasFunc) {\n      path = castPath(path, object);\n\n      var index = -1,\n          length = path.length,\n          result = false;\n\n      while (++index < length) {\n        var key = toKey(path[index]);\n        if (!(result = object != null && hasFunc(object, key))) {\n          break;\n        }\n        object = object[key];\n      }\n      if (result || ++index != length) {\n        return result;\n      }\n      length = object == null ? 0 : object.length;\n      return !!length && isLength(length) && isIndex(key, length) &&\n        (isArray(object) || isArguments(object));\n    }\n\n    /**\n     * Initializes an array clone.\n     *\n     * @private\n     * @param {Array} array The array to clone.\n     * @returns {Array} Returns the initialized clone.\n     */\n    function initCloneArray(array) {\n      var length = array.length,\n          result = new array.constructor(length);\n\n      // Add properties assigned by `RegExp#exec`.\n      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n        result.index = array.index;\n        result.input = array.input;\n      }\n      return result;\n    }\n\n    /**\n     * Initializes an object clone.\n     *\n     * @private\n     * @param {Object} object The object to clone.\n     * @returns {Object} Returns the initialized clone.\n     */\n    function initCloneObject(object) {\n      return (typeof object.constructor == 'function' && !isPrototype(object))\n        ? baseCreate(getPrototype(object))\n        : {};\n    }\n\n    /**\n     * Initializes an object clone based on its `toStringTag`.\n     *\n     * **Note:** This function only supports cloning values with tags of\n     * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n     *\n     * @private\n     * @param {Object} object The object to clone.\n     * @param {string} tag The `toStringTag` of the object to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Object} Returns the initialized clone.\n     */\n    function initCloneByTag(object, tag, isDeep) {\n      var Ctor = object.constructor;\n      switch (tag) {\n        case arrayBufferTag:\n          return cloneArrayBuffer(object);\n\n        case boolTag:\n        case dateTag:\n          return new Ctor(+object);\n\n        case dataViewTag:\n          return cloneDataView(object, isDeep);\n\n        case float32Tag: case float64Tag:\n        case int8Tag: case int16Tag: case int32Tag:\n        case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n          return cloneTypedArray(object, isDeep);\n\n        case mapTag:\n          return new Ctor;\n\n        case numberTag:\n        case stringTag:\n          return new Ctor(object);\n\n        case regexpTag:\n          return cloneRegExp(object);\n\n        case setTag:\n          return new Ctor;\n\n        case symbolTag:\n          return cloneSymbol(object);\n      }\n    }\n\n    /**\n     * Inserts wrapper `details` in a comment at the top of the `source` body.\n     *\n     * @private\n     * @param {string} source The source to modify.\n     * @returns {Array} details The details to insert.\n     * @returns {string} Returns the modified source.\n     */\n    function insertWrapDetails(source, details) {\n      var length = details.length;\n      if (!length) {\n        return source;\n      }\n      var lastIndex = length - 1;\n      details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];\n      details = details.join(length > 2 ? ', ' : ' ');\n      return source.replace(reWrapComment, '{\\n/* [wrapped with ' + details + '] */\\n');\n    }\n\n    /**\n     * Checks if `value` is a flattenable `arguments` object or array.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n     */\n    function isFlattenable(value) {\n      return isArray(value) || isArguments(value) ||\n        !!(spreadableSymbol && value && value[spreadableSymbol]);\n    }\n\n    /**\n     * Checks if `value` is a valid array-like index.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n     */\n    function isIndex(value, length) {\n      var type = typeof value;\n      length = length == null ? MAX_SAFE_INTEGER : length;\n\n      return !!length &&\n        (type == 'number' ||\n          (type != 'symbol' && reIsUint.test(value))) &&\n            (value > -1 && value % 1 == 0 && value < length);\n    }\n\n    /**\n     * Checks if the given arguments are from an iteratee call.\n     *\n     * @private\n     * @param {*} value The potential iteratee value argument.\n     * @param {*} index The potential iteratee index or key argument.\n     * @param {*} object The potential iteratee object argument.\n     * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n     *  else `false`.\n     */\n    function isIterateeCall(value, index, object) {\n      if (!isObject(object)) {\n        return false;\n      }\n      var type = typeof index;\n      if (type == 'number'\n            ? (isArrayLike(object) && isIndex(index, object.length))\n            : (type == 'string' && index in object)\n          ) {\n        return eq(object[index], value);\n      }\n      return false;\n    }\n\n    /**\n     * Checks if `value` is a property name and not a property path.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @param {Object} [object] The object to query keys on.\n     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n     */\n    function isKey(value, object) {\n      if (isArray(value)) {\n        return false;\n      }\n      var type = typeof value;\n      if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n          value == null || isSymbol(value)) {\n        return true;\n      }\n      return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n        (object != null && value in Object(object));\n    }\n\n    /**\n     * Checks if `value` is suitable for use as unique object key.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n     */\n    function isKeyable(value) {\n      var type = typeof value;\n      return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n        ? (value !== '__proto__')\n        : (value === null);\n    }\n\n    /**\n     * Checks if `func` has a lazy counterpart.\n     *\n     * @private\n     * @param {Function} func The function to check.\n     * @returns {boolean} Returns `true` if `func` has a lazy counterpart,\n     *  else `false`.\n     */\n    function isLaziable(func) {\n      var funcName = getFuncName(func),\n          other = lodash[funcName];\n\n      if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {\n        return false;\n      }\n      if (func === other) {\n        return true;\n      }\n      var data = getData(other);\n      return !!data && func === data[0];\n    }\n\n    /**\n     * Checks if `func` has its source masked.\n     *\n     * @private\n     * @param {Function} func The function to check.\n     * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n     */\n    function isMasked(func) {\n      return !!maskSrcKey && (maskSrcKey in func);\n    }\n\n    /**\n     * Checks if `func` is capable of being masked.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `func` is maskable, else `false`.\n     */\n    var isMaskable = coreJsData ? isFunction : stubFalse;\n\n    /**\n     * Checks if `value` is likely a prototype object.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n     */\n    function isPrototype(value) {\n      var Ctor = value && value.constructor,\n          proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n      return value === proto;\n    }\n\n    /**\n     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` if suitable for strict\n     *  equality comparisons, else `false`.\n     */\n    function isStrictComparable(value) {\n      return value === value && !isObject(value);\n    }\n\n    /**\n     * A specialized version of `matchesProperty` for source values suitable\n     * for strict equality comparisons, i.e. `===`.\n     *\n     * @private\n     * @param {string} key The key of the property to get.\n     * @param {*} srcValue The value to match.\n     * @returns {Function} Returns the new spec function.\n     */\n    function matchesStrictComparable(key, srcValue) {\n      return function(object) {\n        if (object == null) {\n          return false;\n        }\n        return object[key] === srcValue &&\n          (srcValue !== undefined || (key in Object(object)));\n      };\n    }\n\n    /**\n     * A specialized version of `_.memoize` which clears the memoized function's\n     * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n     *\n     * @private\n     * @param {Function} func The function to have its output memoized.\n     * @returns {Function} Returns the new memoized function.\n     */\n    function memoizeCapped(func) {\n      var result = memoize(func, function(key) {\n        if (cache.size === MAX_MEMOIZE_SIZE) {\n          cache.clear();\n        }\n        return key;\n      });\n\n      var cache = result.cache;\n      return result;\n    }\n\n    /**\n     * Merges the function metadata of `source` into `data`.\n     *\n     * Merging metadata reduces the number of wrappers used to invoke a function.\n     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`\n     * may be applied regardless of execution order. Methods like `_.ary` and\n     * `_.rearg` modify function arguments, making the order in which they are\n     * executed important, preventing the merging of metadata. However, we make\n     * an exception for a safe combined case where curried functions have `_.ary`\n     * and or `_.rearg` applied.\n     *\n     * @private\n     * @param {Array} data The destination metadata.\n     * @param {Array} source The source metadata.\n     * @returns {Array} Returns `data`.\n     */\n    function mergeData(data, source) {\n      var bitmask = data[1],\n          srcBitmask = source[1],\n          newBitmask = bitmask | srcBitmask,\n          isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);\n\n      var isCombo =\n        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||\n        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||\n        ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));\n\n      // Exit early if metadata can't be merged.\n      if (!(isCommon || isCombo)) {\n        return data;\n      }\n      // Use source `thisArg` if available.\n      if (srcBitmask & WRAP_BIND_FLAG) {\n        data[2] = source[2];\n        // Set when currying a bound function.\n        newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;\n      }\n      // Compose partial arguments.\n      var value = source[3];\n      if (value) {\n        var partials = data[3];\n        data[3] = partials ? composeArgs(partials, value, source[4]) : value;\n        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];\n      }\n      // Compose partial right arguments.\n      value = source[5];\n      if (value) {\n        partials = data[5];\n        data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;\n        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];\n      }\n      // Use source `argPos` if available.\n      value = source[7];\n      if (value) {\n        data[7] = value;\n      }\n      // Use source `ary` if it's smaller.\n      if (srcBitmask & WRAP_ARY_FLAG) {\n        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);\n      }\n      // Use source `arity` if one is not provided.\n      if (data[9] == null) {\n        data[9] = source[9];\n      }\n      // Use source `func` and merge bitmasks.\n      data[0] = source[0];\n      data[1] = newBitmask;\n\n      return data;\n    }\n\n    /**\n     * This function is like\n     * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n     * except that it includes inherited enumerable properties.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     */\n    function nativeKeysIn(object) {\n      var result = [];\n      if (object != null) {\n        for (var key in Object(object)) {\n          result.push(key);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * Converts `value` to a string using `Object.prototype.toString`.\n     *\n     * @private\n     * @param {*} value The value to convert.\n     * @returns {string} Returns the converted string.\n     */\n    function objectToString(value) {\n      return nativeObjectToString.call(value);\n    }\n\n    /**\n     * A specialized version of `baseRest` which transforms the rest array.\n     *\n     * @private\n     * @param {Function} func The function to apply a rest parameter to.\n     * @param {number} [start=func.length-1] The start position of the rest parameter.\n     * @param {Function} transform The rest array transform.\n     * @returns {Function} Returns the new function.\n     */\n    function overRest(func, start, transform) {\n      start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n      return function() {\n        var args = arguments,\n            index = -1,\n            length = nativeMax(args.length - start, 0),\n            array = Array(length);\n\n        while (++index < length) {\n          array[index] = args[start + index];\n        }\n        index = -1;\n        var otherArgs = Array(start + 1);\n        while (++index < start) {\n          otherArgs[index] = args[index];\n        }\n        otherArgs[start] = transform(array);\n        return apply(func, this, otherArgs);\n      };\n    }\n\n    /**\n     * Gets the parent value at `path` of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array} path The path to get the parent value of.\n     * @returns {*} Returns the parent value.\n     */\n    function parent(object, path) {\n      return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n    }\n\n    /**\n     * Reorder `array` according to the specified indexes where the element at\n     * the first index is assigned as the first element, the element at\n     * the second index is assigned as the second element, and so on.\n     *\n     * @private\n     * @param {Array} array The array to reorder.\n     * @param {Array} indexes The arranged array indexes.\n     * @returns {Array} Returns `array`.\n     */\n    function reorder(array, indexes) {\n      var arrLength = array.length,\n          length = nativeMin(indexes.length, arrLength),\n          oldArray = copyArray(array);\n\n      while (length--) {\n        var index = indexes[length];\n        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;\n      }\n      return array;\n    }\n\n    /**\n     * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {string} key The key of the property to get.\n     * @returns {*} Returns the property value.\n     */\n    function safeGet(object, key) {\n      if (key === 'constructor' && typeof object[key] === 'function') {\n        return;\n      }\n\n      if (key == '__proto__') {\n        return;\n      }\n\n      return object[key];\n    }\n\n    /**\n     * Sets metadata for `func`.\n     *\n     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short\n     * period of time, it will trip its breaker and transition to an identity\n     * function to avoid garbage collection pauses in V8. See\n     * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)\n     * for more details.\n     *\n     * @private\n     * @param {Function} func The function to associate metadata with.\n     * @param {*} data The metadata.\n     * @returns {Function} Returns `func`.\n     */\n    var setData = shortOut(baseSetData);\n\n    /**\n     * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).\n     *\n     * @private\n     * @param {Function} func The function to delay.\n     * @param {number} wait The number of milliseconds to delay invocation.\n     * @returns {number|Object} Returns the timer id or timeout object.\n     */\n    var setTimeout = ctxSetTimeout || function(func, wait) {\n      return root.setTimeout(func, wait);\n    };\n\n    /**\n     * Sets the `toString` method of `func` to return `string`.\n     *\n     * @private\n     * @param {Function} func The function to modify.\n     * @param {Function} string The `toString` result.\n     * @returns {Function} Returns `func`.\n     */\n    var setToString = shortOut(baseSetToString);\n\n    /**\n     * Sets the `toString` method of `wrapper` to mimic the source of `reference`\n     * with wrapper details in a comment at the top of the source body.\n     *\n     * @private\n     * @param {Function} wrapper The function to modify.\n     * @param {Function} reference The reference function.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @returns {Function} Returns `wrapper`.\n     */\n    function setWrapToString(wrapper, reference, bitmask) {\n      var source = (reference + '');\n      return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));\n    }\n\n    /**\n     * Creates a function that'll short out and invoke `identity` instead\n     * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n     * milliseconds.\n     *\n     * @private\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new shortable function.\n     */\n    function shortOut(func) {\n      var count = 0,\n          lastCalled = 0;\n\n      return function() {\n        var stamp = nativeNow(),\n            remaining = HOT_SPAN - (stamp - lastCalled);\n\n        lastCalled = stamp;\n        if (remaining > 0) {\n          if (++count >= HOT_COUNT) {\n            return arguments[0];\n          }\n        } else {\n          count = 0;\n        }\n        return func.apply(undefined, arguments);\n      };\n    }\n\n    /**\n     * A specialized version of `_.shuffle` which mutates and sets the size of `array`.\n     *\n     * @private\n     * @param {Array} array The array to shuffle.\n     * @param {number} [size=array.length] The size of `array`.\n     * @returns {Array} Returns `array`.\n     */\n    function shuffleSelf(array, size) {\n      var index = -1,\n          length = array.length,\n          lastIndex = length - 1;\n\n      size = size === undefined ? length : size;\n      while (++index < size) {\n        var rand = baseRandom(index, lastIndex),\n            value = array[rand];\n\n        array[rand] = array[index];\n        array[index] = value;\n      }\n      array.length = size;\n      return array;\n    }\n\n    /**\n     * Converts `string` to a property path array.\n     *\n     * @private\n     * @param {string} string The string to convert.\n     * @returns {Array} Returns the property path array.\n     */\n    var stringToPath = memoizeCapped(function(string) {\n      var result = [];\n      if (string.charCodeAt(0) === 46 /* . */) {\n        result.push('');\n      }\n      string.replace(rePropName, function(match, number, quote, subString) {\n        result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n      });\n      return result;\n    });\n\n    /**\n     * Converts `value` to a string key if it's not a string or symbol.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @returns {string|symbol} Returns the key.\n     */\n    function toKey(value) {\n      if (typeof value == 'string' || isSymbol(value)) {\n        return value;\n      }\n      var result = (value + '');\n      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n    }\n\n    /**\n     * Converts `func` to its source code.\n     *\n     * @private\n     * @param {Function} func The function to convert.\n     * @returns {string} Returns the source code.\n     */\n    function toSource(func) {\n      if (func != null) {\n        try {\n          return funcToString.call(func);\n        } catch (e) {}\n        try {\n          return (func + '');\n        } catch (e) {}\n      }\n      return '';\n    }\n\n    /**\n     * Updates wrapper `details` based on `bitmask` flags.\n     *\n     * @private\n     * @returns {Array} details The details to modify.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @returns {Array} Returns `details`.\n     */\n    function updateWrapDetails(details, bitmask) {\n      arrayEach(wrapFlags, function(pair) {\n        var value = '_.' + pair[0];\n        if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {\n          details.push(value);\n        }\n      });\n      return details.sort();\n    }\n\n    /**\n     * Creates a clone of `wrapper`.\n     *\n     * @private\n     * @param {Object} wrapper The wrapper to clone.\n     * @returns {Object} Returns the cloned wrapper.\n     */\n    function wrapperClone(wrapper) {\n      if (wrapper instanceof LazyWrapper) {\n        return wrapper.clone();\n      }\n      var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);\n      result.__actions__ = copyArray(wrapper.__actions__);\n      result.__index__  = wrapper.__index__;\n      result.__values__ = wrapper.__values__;\n      return result;\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an array of elements split into groups the length of `size`.\n     * If `array` can't be split evenly, the final chunk will be the remaining\n     * elements.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to process.\n     * @param {number} [size=1] The length of each chunk\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the new array of chunks.\n     * @example\n     *\n     * _.chunk(['a', 'b', 'c', 'd'], 2);\n     * // => [['a', 'b'], ['c', 'd']]\n     *\n     * _.chunk(['a', 'b', 'c', 'd'], 3);\n     * // => [['a', 'b', 'c'], ['d']]\n     */\n    function chunk(array, size, guard) {\n      if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {\n        size = 1;\n      } else {\n        size = nativeMax(toInteger(size), 0);\n      }\n      var length = array == null ? 0 : array.length;\n      if (!length || size < 1) {\n        return [];\n      }\n      var index = 0,\n          resIndex = 0,\n          result = Array(nativeCeil(length / size));\n\n      while (index < length) {\n        result[resIndex++] = baseSlice(array, index, (index += size));\n      }\n      return result;\n    }\n\n    /**\n     * Creates an array with all falsey values removed. The values `false`, `null`,\n     * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to compact.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * _.compact([0, 1, false, 2, '', 3]);\n     * // => [1, 2, 3]\n     */\n    function compact(array) {\n      var index = -1,\n          length = array == null ? 0 : array.length,\n          resIndex = 0,\n          result = [];\n\n      while (++index < length) {\n        var value = array[index];\n        if (value) {\n          result[resIndex++] = value;\n        }\n      }\n      return result;\n    }\n\n    /**\n     * Creates a new array concatenating `array` with any additional arrays\n     * and/or values.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to concatenate.\n     * @param {...*} [values] The values to concatenate.\n     * @returns {Array} Returns the new concatenated array.\n     * @example\n     *\n     * var array = [1];\n     * var other = _.concat(array, 2, [3], [[4]]);\n     *\n     * console.log(other);\n     * // => [1, 2, 3, [4]]\n     *\n     * console.log(array);\n     * // => [1]\n     */\n    function concat() {\n      var length = arguments.length;\n      if (!length) {\n        return [];\n      }\n      var args = Array(length - 1),\n          array = arguments[0],\n          index = length;\n\n      while (index--) {\n        args[index - 1] = arguments[index];\n      }\n      return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));\n    }\n\n    /**\n     * Creates an array of `array` values not included in the other given arrays\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons. The order and references of result values are\n     * determined by the first array.\n     *\n     * **Note:** Unlike `_.pullAll`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...Array} [values] The values to exclude.\n     * @returns {Array} Returns the new array of filtered values.\n     * @see _.without, _.xor\n     * @example\n     *\n     * _.difference([2, 1], [2, 3]);\n     * // => [1]\n     */\n    var difference = baseRest(function(array, values) {\n      return isArrayLikeObject(array)\n        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))\n        : [];\n    });\n\n    /**\n     * This method is like `_.difference` except that it accepts `iteratee` which\n     * is invoked for each element of `array` and `values` to generate the criterion\n     * by which they're compared. The order and references of result values are\n     * determined by the first array. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * **Note:** Unlike `_.pullAllBy`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...Array} [values] The values to exclude.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n     * // => [1.2]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');\n     * // => [{ 'x': 2 }]\n     */\n    var differenceBy = baseRest(function(array, values) {\n      var iteratee = last(values);\n      if (isArrayLikeObject(iteratee)) {\n        iteratee = undefined;\n      }\n      return isArrayLikeObject(array)\n        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))\n        : [];\n    });\n\n    /**\n     * This method is like `_.difference` except that it accepts `comparator`\n     * which is invoked to compare elements of `array` to `values`. The order and\n     * references of result values are determined by the first array. The comparator\n     * is invoked with two arguments: (arrVal, othVal).\n     *\n     * **Note:** Unlike `_.pullAllWith`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...Array} [values] The values to exclude.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     *\n     * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);\n     * // => [{ 'x': 2, 'y': 1 }]\n     */\n    var differenceWith = baseRest(function(array, values) {\n      var comparator = last(values);\n      if (isArrayLikeObject(comparator)) {\n        comparator = undefined;\n      }\n      return isArrayLikeObject(array)\n        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)\n        : [];\n    });\n\n    /**\n     * Creates a slice of `array` with `n` elements dropped from the beginning.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.5.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to drop.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.drop([1, 2, 3]);\n     * // => [2, 3]\n     *\n     * _.drop([1, 2, 3], 2);\n     * // => [3]\n     *\n     * _.drop([1, 2, 3], 5);\n     * // => []\n     *\n     * _.drop([1, 2, 3], 0);\n     * // => [1, 2, 3]\n     */\n    function drop(array, n, guard) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      n = (guard || n === undefined) ? 1 : toInteger(n);\n      return baseSlice(array, n < 0 ? 0 : n, length);\n    }\n\n    /**\n     * Creates a slice of `array` with `n` elements dropped from the end.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to drop.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.dropRight([1, 2, 3]);\n     * // => [1, 2]\n     *\n     * _.dropRight([1, 2, 3], 2);\n     * // => [1]\n     *\n     * _.dropRight([1, 2, 3], 5);\n     * // => []\n     *\n     * _.dropRight([1, 2, 3], 0);\n     * // => [1, 2, 3]\n     */\n    function dropRight(array, n, guard) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      n = (guard || n === undefined) ? 1 : toInteger(n);\n      n = length - n;\n      return baseSlice(array, 0, n < 0 ? 0 : n);\n    }\n\n    /**\n     * Creates a slice of `array` excluding elements dropped from the end.\n     * Elements are dropped until `predicate` returns falsey. The predicate is\n     * invoked with three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': true },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': false }\n     * ];\n     *\n     * _.dropRightWhile(users, function(o) { return !o.active; });\n     * // => objects for ['barney']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });\n     * // => objects for ['barney', 'fred']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.dropRightWhile(users, ['active', false]);\n     * // => objects for ['barney']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.dropRightWhile(users, 'active');\n     * // => objects for ['barney', 'fred', 'pebbles']\n     */\n    function dropRightWhile(array, predicate) {\n      return (array && array.length)\n        ? baseWhile(array, getIteratee(predicate, 3), true, true)\n        : [];\n    }\n\n    /**\n     * Creates a slice of `array` excluding elements dropped from the beginning.\n     * Elements are dropped until `predicate` returns falsey. The predicate is\n     * invoked with three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': false },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': true }\n     * ];\n     *\n     * _.dropWhile(users, function(o) { return !o.active; });\n     * // => objects for ['pebbles']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.dropWhile(users, { 'user': 'barney', 'active': false });\n     * // => objects for ['fred', 'pebbles']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.dropWhile(users, ['active', false]);\n     * // => objects for ['pebbles']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.dropWhile(users, 'active');\n     * // => objects for ['barney', 'fred', 'pebbles']\n     */\n    function dropWhile(array, predicate) {\n      return (array && array.length)\n        ? baseWhile(array, getIteratee(predicate, 3), true)\n        : [];\n    }\n\n    /**\n     * Fills elements of `array` with `value` from `start` up to, but not\n     * including, `end`.\n     *\n     * **Note:** This method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.2.0\n     * @category Array\n     * @param {Array} array The array to fill.\n     * @param {*} value The value to fill `array` with.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [1, 2, 3];\n     *\n     * _.fill(array, 'a');\n     * console.log(array);\n     * // => ['a', 'a', 'a']\n     *\n     * _.fill(Array(3), 2);\n     * // => [2, 2, 2]\n     *\n     * _.fill([4, 6, 8, 10], '*', 1, 3);\n     * // => [4, '*', '*', 10]\n     */\n    function fill(array, value, start, end) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {\n        start = 0;\n        end = length;\n      }\n      return baseFill(array, value, start, end);\n    }\n\n    /**\n     * This method is like `_.find` except that it returns the index of the first\n     * element `predicate` returns truthy for instead of the element itself.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @returns {number} Returns the index of the found element, else `-1`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': false },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': true }\n     * ];\n     *\n     * _.findIndex(users, function(o) { return o.user == 'barney'; });\n     * // => 0\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findIndex(users, { 'user': 'fred', 'active': false });\n     * // => 1\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findIndex(users, ['active', false]);\n     * // => 0\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findIndex(users, 'active');\n     * // => 2\n     */\n    function findIndex(array, predicate, fromIndex) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return -1;\n      }\n      var index = fromIndex == null ? 0 : toInteger(fromIndex);\n      if (index < 0) {\n        index = nativeMax(length + index, 0);\n      }\n      return baseFindIndex(array, getIteratee(predicate, 3), index);\n    }\n\n    /**\n     * This method is like `_.findIndex` except that it iterates over elements\n     * of `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=array.length-1] The index to search from.\n     * @returns {number} Returns the index of the found element, else `-1`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': true },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': false }\n     * ];\n     *\n     * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });\n     * // => 2\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findLastIndex(users, { 'user': 'barney', 'active': true });\n     * // => 0\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findLastIndex(users, ['active', false]);\n     * // => 2\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findLastIndex(users, 'active');\n     * // => 0\n     */\n    function findLastIndex(array, predicate, fromIndex) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return -1;\n      }\n      var index = length - 1;\n      if (fromIndex !== undefined) {\n        index = toInteger(fromIndex);\n        index = fromIndex < 0\n          ? nativeMax(length + index, 0)\n          : nativeMin(index, length - 1);\n      }\n      return baseFindIndex(array, getIteratee(predicate, 3), index, true);\n    }\n\n    /**\n     * Flattens `array` a single level deep.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to flatten.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * _.flatten([1, [2, [3, [4]], 5]]);\n     * // => [1, 2, [3, [4]], 5]\n     */\n    function flatten(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseFlatten(array, 1) : [];\n    }\n\n    /**\n     * Recursively flattens `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to flatten.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * _.flattenDeep([1, [2, [3, [4]], 5]]);\n     * // => [1, 2, 3, 4, 5]\n     */\n    function flattenDeep(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseFlatten(array, INFINITY) : [];\n    }\n\n    /**\n     * Recursively flatten `array` up to `depth` times.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.4.0\n     * @category Array\n     * @param {Array} array The array to flatten.\n     * @param {number} [depth=1] The maximum recursion depth.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * var array = [1, [2, [3, [4]], 5]];\n     *\n     * _.flattenDepth(array, 1);\n     * // => [1, 2, [3, [4]], 5]\n     *\n     * _.flattenDepth(array, 2);\n     * // => [1, 2, 3, [4], 5]\n     */\n    function flattenDepth(array, depth) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      depth = depth === undefined ? 1 : toInteger(depth);\n      return baseFlatten(array, depth);\n    }\n\n    /**\n     * The inverse of `_.toPairs`; this method returns an object composed\n     * from key-value `pairs`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} pairs The key-value pairs.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * _.fromPairs([['a', 1], ['b', 2]]);\n     * // => { 'a': 1, 'b': 2 }\n     */\n    function fromPairs(pairs) {\n      var index = -1,\n          length = pairs == null ? 0 : pairs.length,\n          result = {};\n\n      while (++index < length) {\n        var pair = pairs[index];\n        result[pair[0]] = pair[1];\n      }\n      return result;\n    }\n\n    /**\n     * Gets the first element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @alias first\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {*} Returns the first element of `array`.\n     * @example\n     *\n     * _.head([1, 2, 3]);\n     * // => 1\n     *\n     * _.head([]);\n     * // => undefined\n     */\n    function head(array) {\n      return (array && array.length) ? array[0] : undefined;\n    }\n\n    /**\n     * Gets the index at which the first occurrence of `value` is found in `array`\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons. If `fromIndex` is negative, it's used as the\n     * offset from the end of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.indexOf([1, 2, 1, 2], 2);\n     * // => 1\n     *\n     * // Search from the `fromIndex`.\n     * _.indexOf([1, 2, 1, 2], 2, 2);\n     * // => 3\n     */\n    function indexOf(array, value, fromIndex) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return -1;\n      }\n      var index = fromIndex == null ? 0 : toInteger(fromIndex);\n      if (index < 0) {\n        index = nativeMax(length + index, 0);\n      }\n      return baseIndexOf(array, value, index);\n    }\n\n    /**\n     * Gets all but the last element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.initial([1, 2, 3]);\n     * // => [1, 2]\n     */\n    function initial(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseSlice(array, 0, -1) : [];\n    }\n\n    /**\n     * Creates an array of unique values that are included in all given arrays\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons. The order and references of result values are\n     * determined by the first array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @returns {Array} Returns the new array of intersecting values.\n     * @example\n     *\n     * _.intersection([2, 1], [2, 3]);\n     * // => [2]\n     */\n    var intersection = baseRest(function(arrays) {\n      var mapped = arrayMap(arrays, castArrayLikeObject);\n      return (mapped.length && mapped[0] === arrays[0])\n        ? baseIntersection(mapped)\n        : [];\n    });\n\n    /**\n     * This method is like `_.intersection` except that it accepts `iteratee`\n     * which is invoked for each element of each `arrays` to generate the criterion\n     * by which they're compared. The order and references of result values are\n     * determined by the first array. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of intersecting values.\n     * @example\n     *\n     * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n     * // => [2.1]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 1 }]\n     */\n    var intersectionBy = baseRest(function(arrays) {\n      var iteratee = last(arrays),\n          mapped = arrayMap(arrays, castArrayLikeObject);\n\n      if (iteratee === last(mapped)) {\n        iteratee = undefined;\n      } else {\n        mapped.pop();\n      }\n      return (mapped.length && mapped[0] === arrays[0])\n        ? baseIntersection(mapped, getIteratee(iteratee, 2))\n        : [];\n    });\n\n    /**\n     * This method is like `_.intersection` except that it accepts `comparator`\n     * which is invoked to compare elements of `arrays`. The order and references\n     * of result values are determined by the first array. The comparator is\n     * invoked with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of intersecting values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.intersectionWith(objects, others, _.isEqual);\n     * // => [{ 'x': 1, 'y': 2 }]\n     */\n    var intersectionWith = baseRest(function(arrays) {\n      var comparator = last(arrays),\n          mapped = arrayMap(arrays, castArrayLikeObject);\n\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n      if (comparator) {\n        mapped.pop();\n      }\n      return (mapped.length && mapped[0] === arrays[0])\n        ? baseIntersection(mapped, undefined, comparator)\n        : [];\n    });\n\n    /**\n     * Converts all elements in `array` into a string separated by `separator`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to convert.\n     * @param {string} [separator=','] The element separator.\n     * @returns {string} Returns the joined string.\n     * @example\n     *\n     * _.join(['a', 'b', 'c'], '~');\n     * // => 'a~b~c'\n     */\n    function join(array, separator) {\n      return array == null ? '' : nativeJoin.call(array, separator);\n    }\n\n    /**\n     * Gets the last element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {*} Returns the last element of `array`.\n     * @example\n     *\n     * _.last([1, 2, 3]);\n     * // => 3\n     */\n    function last(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? array[length - 1] : undefined;\n    }\n\n    /**\n     * This method is like `_.indexOf` except that it iterates over elements of\n     * `array` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @param {number} [fromIndex=array.length-1] The index to search from.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.lastIndexOf([1, 2, 1, 2], 2);\n     * // => 3\n     *\n     * // Search from the `fromIndex`.\n     * _.lastIndexOf([1, 2, 1, 2], 2, 2);\n     * // => 1\n     */\n    function lastIndexOf(array, value, fromIndex) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return -1;\n      }\n      var index = length;\n      if (fromIndex !== undefined) {\n        index = toInteger(fromIndex);\n        index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);\n      }\n      return value === value\n        ? strictLastIndexOf(array, value, index)\n        : baseFindIndex(array, baseIsNaN, index, true);\n    }\n\n    /**\n     * Gets the element at index `n` of `array`. If `n` is negative, the nth\n     * element from the end is returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.11.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=0] The index of the element to return.\n     * @returns {*} Returns the nth element of `array`.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'd'];\n     *\n     * _.nth(array, 1);\n     * // => 'b'\n     *\n     * _.nth(array, -2);\n     * // => 'c';\n     */\n    function nth(array, n) {\n      return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;\n    }\n\n    /**\n     * Removes all given values from `array` using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`\n     * to remove elements from an array by predicate.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {...*} [values] The values to remove.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n     *\n     * _.pull(array, 'a', 'c');\n     * console.log(array);\n     * // => ['b', 'b']\n     */\n    var pull = baseRest(pullAll);\n\n    /**\n     * This method is like `_.pull` except that it accepts an array of values to remove.\n     *\n     * **Note:** Unlike `_.difference`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n     *\n     * _.pullAll(array, ['a', 'c']);\n     * console.log(array);\n     * // => ['b', 'b']\n     */\n    function pullAll(array, values) {\n      return (array && array.length && values && values.length)\n        ? basePullAll(array, values)\n        : array;\n    }\n\n    /**\n     * This method is like `_.pullAll` except that it accepts `iteratee` which is\n     * invoked for each element of `array` and `values` to generate the criterion\n     * by which they're compared. The iteratee is invoked with one argument: (value).\n     *\n     * **Note:** Unlike `_.differenceBy`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];\n     *\n     * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');\n     * console.log(array);\n     * // => [{ 'x': 2 }]\n     */\n    function pullAllBy(array, values, iteratee) {\n      return (array && array.length && values && values.length)\n        ? basePullAll(array, values, getIteratee(iteratee, 2))\n        : array;\n    }\n\n    /**\n     * This method is like `_.pullAll` except that it accepts `comparator` which\n     * is invoked to compare elements of `array` to `values`. The comparator is\n     * invoked with two arguments: (arrVal, othVal).\n     *\n     * **Note:** Unlike `_.differenceWith`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.6.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];\n     *\n     * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);\n     * console.log(array);\n     * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]\n     */\n    function pullAllWith(array, values, comparator) {\n      return (array && array.length && values && values.length)\n        ? basePullAll(array, values, undefined, comparator)\n        : array;\n    }\n\n    /**\n     * Removes elements from `array` corresponding to `indexes` and returns an\n     * array of removed elements.\n     *\n     * **Note:** Unlike `_.at`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {...(number|number[])} [indexes] The indexes of elements to remove.\n     * @returns {Array} Returns the new array of removed elements.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'd'];\n     * var pulled = _.pullAt(array, [1, 3]);\n     *\n     * console.log(array);\n     * // => ['a', 'c']\n     *\n     * console.log(pulled);\n     * // => ['b', 'd']\n     */\n    var pullAt = flatRest(function(array, indexes) {\n      var length = array == null ? 0 : array.length,\n          result = baseAt(array, indexes);\n\n      basePullAt(array, arrayMap(indexes, function(index) {\n        return isIndex(index, length) ? +index : index;\n      }).sort(compareAscending));\n\n      return result;\n    });\n\n    /**\n     * Removes all elements from `array` that `predicate` returns truthy for\n     * and returns an array of the removed elements. The predicate is invoked\n     * with three arguments: (value, index, array).\n     *\n     * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`\n     * to pull elements from an array by value.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new array of removed elements.\n     * @example\n     *\n     * var array = [1, 2, 3, 4];\n     * var evens = _.remove(array, function(n) {\n     *   return n % 2 == 0;\n     * });\n     *\n     * console.log(array);\n     * // => [1, 3]\n     *\n     * console.log(evens);\n     * // => [2, 4]\n     */\n    function remove(array, predicate) {\n      var result = [];\n      if (!(array && array.length)) {\n        return result;\n      }\n      var index = -1,\n          indexes = [],\n          length = array.length;\n\n      predicate = getIteratee(predicate, 3);\n      while (++index < length) {\n        var value = array[index];\n        if (predicate(value, index, array)) {\n          result.push(value);\n          indexes.push(index);\n        }\n      }\n      basePullAt(array, indexes);\n      return result;\n    }\n\n    /**\n     * Reverses `array` so that the first element becomes the last, the second\n     * element becomes the second to last, and so on.\n     *\n     * **Note:** This method mutates `array` and is based on\n     * [`Array#reverse`](https://mdn.io/Array/reverse).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [1, 2, 3];\n     *\n     * _.reverse(array);\n     * // => [3, 2, 1]\n     *\n     * console.log(array);\n     * // => [3, 2, 1]\n     */\n    function reverse(array) {\n      return array == null ? array : nativeReverse.call(array);\n    }\n\n    /**\n     * Creates a slice of `array` from `start` up to, but not including, `end`.\n     *\n     * **Note:** This method is used instead of\n     * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are\n     * returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to slice.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns the slice of `array`.\n     */\n    function slice(array, start, end) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {\n        start = 0;\n        end = length;\n      }\n      else {\n        start = start == null ? 0 : toInteger(start);\n        end = end === undefined ? length : toInteger(end);\n      }\n      return baseSlice(array, start, end);\n    }\n\n    /**\n     * Uses a binary search to determine the lowest index at which `value`\n     * should be inserted into `array` in order to maintain its sort order.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * _.sortedIndex([30, 50], 40);\n     * // => 1\n     */\n    function sortedIndex(array, value) {\n      return baseSortedIndex(array, value);\n    }\n\n    /**\n     * This method is like `_.sortedIndex` except that it accepts `iteratee`\n     * which is invoked for `value` and each element of `array` to compute their\n     * sort ranking. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * var objects = [{ 'x': 4 }, { 'x': 5 }];\n     *\n     * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n     * // => 0\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.sortedIndexBy(objects, { 'x': 4 }, 'x');\n     * // => 0\n     */\n    function sortedIndexBy(array, value, iteratee) {\n      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));\n    }\n\n    /**\n     * This method is like `_.indexOf` except that it performs a binary\n     * search on a sorted `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.sortedIndexOf([4, 5, 5, 5, 6], 5);\n     * // => 1\n     */\n    function sortedIndexOf(array, value) {\n      var length = array == null ? 0 : array.length;\n      if (length) {\n        var index = baseSortedIndex(array, value);\n        if (index < length && eq(array[index], value)) {\n          return index;\n        }\n      }\n      return -1;\n    }\n\n    /**\n     * This method is like `_.sortedIndex` except that it returns the highest\n     * index at which `value` should be inserted into `array` in order to\n     * maintain its sort order.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * _.sortedLastIndex([4, 5, 5, 5, 6], 5);\n     * // => 4\n     */\n    function sortedLastIndex(array, value) {\n      return baseSortedIndex(array, value, true);\n    }\n\n    /**\n     * This method is like `_.sortedLastIndex` except that it accepts `iteratee`\n     * which is invoked for `value` and each element of `array` to compute their\n     * sort ranking. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * var objects = [{ 'x': 4 }, { 'x': 5 }];\n     *\n     * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n     * // => 1\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');\n     * // => 1\n     */\n    function sortedLastIndexBy(array, value, iteratee) {\n      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);\n    }\n\n    /**\n     * This method is like `_.lastIndexOf` except that it performs a binary\n     * search on a sorted `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);\n     * // => 3\n     */\n    function sortedLastIndexOf(array, value) {\n      var length = array == null ? 0 : array.length;\n      if (length) {\n        var index = baseSortedIndex(array, value, true) - 1;\n        if (eq(array[index], value)) {\n          return index;\n        }\n      }\n      return -1;\n    }\n\n    /**\n     * This method is like `_.uniq` except that it's designed and optimized\n     * for sorted arrays.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.sortedUniq([1, 1, 2]);\n     * // => [1, 2]\n     */\n    function sortedUniq(array) {\n      return (array && array.length)\n        ? baseSortedUniq(array)\n        : [];\n    }\n\n    /**\n     * This method is like `_.uniqBy` except that it's designed and optimized\n     * for sorted arrays.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);\n     * // => [1.1, 2.3]\n     */\n    function sortedUniqBy(array, iteratee) {\n      return (array && array.length)\n        ? baseSortedUniq(array, getIteratee(iteratee, 2))\n        : [];\n    }\n\n    /**\n     * Gets all but the first element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.tail([1, 2, 3]);\n     * // => [2, 3]\n     */\n    function tail(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseSlice(array, 1, length) : [];\n    }\n\n    /**\n     * Creates a slice of `array` with `n` elements taken from the beginning.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to take.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.take([1, 2, 3]);\n     * // => [1]\n     *\n     * _.take([1, 2, 3], 2);\n     * // => [1, 2]\n     *\n     * _.take([1, 2, 3], 5);\n     * // => [1, 2, 3]\n     *\n     * _.take([1, 2, 3], 0);\n     * // => []\n     */\n    function take(array, n, guard) {\n      if (!(array && array.length)) {\n        return [];\n      }\n      n = (guard || n === undefined) ? 1 : toInteger(n);\n      return baseSlice(array, 0, n < 0 ? 0 : n);\n    }\n\n    /**\n     * Creates a slice of `array` with `n` elements taken from the end.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to take.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.takeRight([1, 2, 3]);\n     * // => [3]\n     *\n     * _.takeRight([1, 2, 3], 2);\n     * // => [2, 3]\n     *\n     * _.takeRight([1, 2, 3], 5);\n     * // => [1, 2, 3]\n     *\n     * _.takeRight([1, 2, 3], 0);\n     * // => []\n     */\n    function takeRight(array, n, guard) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      n = (guard || n === undefined) ? 1 : toInteger(n);\n      n = length - n;\n      return baseSlice(array, n < 0 ? 0 : n, length);\n    }\n\n    /**\n     * Creates a slice of `array` with elements taken from the end. Elements are\n     * taken until `predicate` returns falsey. The predicate is invoked with\n     * three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': true },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': false }\n     * ];\n     *\n     * _.takeRightWhile(users, function(o) { return !o.active; });\n     * // => objects for ['fred', 'pebbles']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });\n     * // => objects for ['pebbles']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.takeRightWhile(users, ['active', false]);\n     * // => objects for ['fred', 'pebbles']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.takeRightWhile(users, 'active');\n     * // => []\n     */\n    function takeRightWhile(array, predicate) {\n      return (array && array.length)\n        ? baseWhile(array, getIteratee(predicate, 3), false, true)\n        : [];\n    }\n\n    /**\n     * Creates a slice of `array` with elements taken from the beginning. Elements\n     * are taken until `predicate` returns falsey. The predicate is invoked with\n     * three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': false },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': true }\n     * ];\n     *\n     * _.takeWhile(users, function(o) { return !o.active; });\n     * // => objects for ['barney', 'fred']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.takeWhile(users, { 'user': 'barney', 'active': false });\n     * // => objects for ['barney']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.takeWhile(users, ['active', false]);\n     * // => objects for ['barney', 'fred']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.takeWhile(users, 'active');\n     * // => []\n     */\n    function takeWhile(array, predicate) {\n      return (array && array.length)\n        ? baseWhile(array, getIteratee(predicate, 3))\n        : [];\n    }\n\n    /**\n     * Creates an array of unique values, in order, from all given arrays using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @returns {Array} Returns the new array of combined values.\n     * @example\n     *\n     * _.union([2], [1, 2]);\n     * // => [2, 1]\n     */\n    var union = baseRest(function(arrays) {\n      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));\n    });\n\n    /**\n     * This method is like `_.union` except that it accepts `iteratee` which is\n     * invoked for each element of each `arrays` to generate the criterion by\n     * which uniqueness is computed. Result values are chosen from the first\n     * array in which the value occurs. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of combined values.\n     * @example\n     *\n     * _.unionBy([2.1], [1.2, 2.3], Math.floor);\n     * // => [2.1, 1.2]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 1 }, { 'x': 2 }]\n     */\n    var unionBy = baseRest(function(arrays) {\n      var iteratee = last(arrays);\n      if (isArrayLikeObject(iteratee)) {\n        iteratee = undefined;\n      }\n      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));\n    });\n\n    /**\n     * This method is like `_.union` except that it accepts `comparator` which\n     * is invoked to compare elements of `arrays`. Result values are chosen from\n     * the first array in which the value occurs. The comparator is invoked\n     * with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of combined values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.unionWith(objects, others, _.isEqual);\n     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n     */\n    var unionWith = baseRest(function(arrays) {\n      var comparator = last(arrays);\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);\n    });\n\n    /**\n     * Creates a duplicate-free version of an array, using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons, in which only the first occurrence of each element\n     * is kept. The order of result values is determined by the order they occur\n     * in the array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.uniq([2, 1, 2]);\n     * // => [2, 1]\n     */\n    function uniq(array) {\n      return (array && array.length) ? baseUniq(array) : [];\n    }\n\n    /**\n     * This method is like `_.uniq` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the criterion by which\n     * uniqueness is computed. The order of result values is determined by the\n     * order they occur in the array. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.uniqBy([2.1, 1.2, 2.3], Math.floor);\n     * // => [2.1, 1.2]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 1 }, { 'x': 2 }]\n     */\n    function uniqBy(array, iteratee) {\n      return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];\n    }\n\n    /**\n     * This method is like `_.uniq` except that it accepts `comparator` which\n     * is invoked to compare elements of `array`. The order of result values is\n     * determined by the order they occur in the array.The comparator is invoked\n     * with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.uniqWith(objects, _.isEqual);\n     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]\n     */\n    function uniqWith(array, comparator) {\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n      return (array && array.length) ? baseUniq(array, undefined, comparator) : [];\n    }\n\n    /**\n     * This method is like `_.zip` except that it accepts an array of grouped\n     * elements and creates an array regrouping the elements to their pre-zip\n     * configuration.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.2.0\n     * @category Array\n     * @param {Array} array The array of grouped elements to process.\n     * @returns {Array} Returns the new array of regrouped elements.\n     * @example\n     *\n     * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);\n     * // => [['a', 1, true], ['b', 2, false]]\n     *\n     * _.unzip(zipped);\n     * // => [['a', 'b'], [1, 2], [true, false]]\n     */\n    function unzip(array) {\n      if (!(array && array.length)) {\n        return [];\n      }\n      var length = 0;\n      array = arrayFilter(array, function(group) {\n        if (isArrayLikeObject(group)) {\n          length = nativeMax(group.length, length);\n          return true;\n        }\n      });\n      return baseTimes(length, function(index) {\n        return arrayMap(array, baseProperty(index));\n      });\n    }\n\n    /**\n     * This method is like `_.unzip` except that it accepts `iteratee` to specify\n     * how regrouped values should be combined. The iteratee is invoked with the\n     * elements of each group: (...group).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.8.0\n     * @category Array\n     * @param {Array} array The array of grouped elements to process.\n     * @param {Function} [iteratee=_.identity] The function to combine\n     *  regrouped values.\n     * @returns {Array} Returns the new array of regrouped elements.\n     * @example\n     *\n     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);\n     * // => [[1, 10, 100], [2, 20, 200]]\n     *\n     * _.unzipWith(zipped, _.add);\n     * // => [3, 30, 300]\n     */\n    function unzipWith(array, iteratee) {\n      if (!(array && array.length)) {\n        return [];\n      }\n      var result = unzip(array);\n      if (iteratee == null) {\n        return result;\n      }\n      return arrayMap(result, function(group) {\n        return apply(iteratee, undefined, group);\n      });\n    }\n\n    /**\n     * Creates an array excluding all given values using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * **Note:** Unlike `_.pull`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...*} [values] The values to exclude.\n     * @returns {Array} Returns the new array of filtered values.\n     * @see _.difference, _.xor\n     * @example\n     *\n     * _.without([2, 1, 2, 3], 1, 2);\n     * // => [3]\n     */\n    var without = baseRest(function(array, values) {\n      return isArrayLikeObject(array)\n        ? baseDifference(array, values)\n        : [];\n    });\n\n    /**\n     * Creates an array of unique values that is the\n     * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)\n     * of the given arrays. The order of result values is determined by the order\n     * they occur in the arrays.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @returns {Array} Returns the new array of filtered values.\n     * @see _.difference, _.without\n     * @example\n     *\n     * _.xor([2, 1], [2, 3]);\n     * // => [1, 3]\n     */\n    var xor = baseRest(function(arrays) {\n      return baseXor(arrayFilter(arrays, isArrayLikeObject));\n    });\n\n    /**\n     * This method is like `_.xor` except that it accepts `iteratee` which is\n     * invoked for each element of each `arrays` to generate the criterion by\n     * which by which they're compared. The order of result values is determined\n     * by the order they occur in the arrays. The iteratee is invoked with one\n     * argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n     * // => [1.2, 3.4]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 2 }]\n     */\n    var xorBy = baseRest(function(arrays) {\n      var iteratee = last(arrays);\n      if (isArrayLikeObject(iteratee)) {\n        iteratee = undefined;\n      }\n      return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));\n    });\n\n    /**\n     * This method is like `_.xor` except that it accepts `comparator` which is\n     * invoked to compare elements of `arrays`. The order of result values is\n     * determined by the order they occur in the arrays. The comparator is invoked\n     * with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.xorWith(objects, others, _.isEqual);\n     * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n     */\n    var xorWith = baseRest(function(arrays) {\n      var comparator = last(arrays);\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n      return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);\n    });\n\n    /**\n     * Creates an array of grouped elements, the first of which contains the\n     * first elements of the given arrays, the second of which contains the\n     * second elements of the given arrays, and so on.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to process.\n     * @returns {Array} Returns the new array of grouped elements.\n     * @example\n     *\n     * _.zip(['a', 'b'], [1, 2], [true, false]);\n     * // => [['a', 1, true], ['b', 2, false]]\n     */\n    var zip = baseRest(unzip);\n\n    /**\n     * This method is like `_.fromPairs` except that it accepts two arrays,\n     * one of property identifiers and one of corresponding values.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.4.0\n     * @category Array\n     * @param {Array} [props=[]] The property identifiers.\n     * @param {Array} [values=[]] The property values.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * _.zipObject(['a', 'b'], [1, 2]);\n     * // => { 'a': 1, 'b': 2 }\n     */\n    function zipObject(props, values) {\n      return baseZipObject(props || [], values || [], assignValue);\n    }\n\n    /**\n     * This method is like `_.zipObject` except that it supports property paths.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.1.0\n     * @category Array\n     * @param {Array} [props=[]] The property identifiers.\n     * @param {Array} [values=[]] The property values.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);\n     * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }\n     */\n    function zipObjectDeep(props, values) {\n      return baseZipObject(props || [], values || [], baseSet);\n    }\n\n    /**\n     * This method is like `_.zip` except that it accepts `iteratee` to specify\n     * how grouped values should be combined. The iteratee is invoked with the\n     * elements of each group: (...group).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.8.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to process.\n     * @param {Function} [iteratee=_.identity] The function to combine\n     *  grouped values.\n     * @returns {Array} Returns the new array of grouped elements.\n     * @example\n     *\n     * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {\n     *   return a + b + c;\n     * });\n     * // => [111, 222]\n     */\n    var zipWith = baseRest(function(arrays) {\n      var length = arrays.length,\n          iteratee = length > 1 ? arrays[length - 1] : undefined;\n\n      iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;\n      return unzipWith(arrays, iteratee);\n    });\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a `lodash` wrapper instance that wraps `value` with explicit method\n     * chain sequences enabled. The result of such sequences must be unwrapped\n     * with `_#value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.3.0\n     * @category Seq\n     * @param {*} value The value to wrap.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'age': 36 },\n     *   { 'user': 'fred',    'age': 40 },\n     *   { 'user': 'pebbles', 'age': 1 }\n     * ];\n     *\n     * var youngest = _\n     *   .chain(users)\n     *   .sortBy('age')\n     *   .map(function(o) {\n     *     return o.user + ' is ' + o.age;\n     *   })\n     *   .head()\n     *   .value();\n     * // => 'pebbles is 1'\n     */\n    function chain(value) {\n      var result = lodash(value);\n      result.__chain__ = true;\n      return result;\n    }\n\n    /**\n     * This method invokes `interceptor` and returns `value`. The interceptor\n     * is invoked with one argument; (value). The purpose of this method is to\n     * \"tap into\" a method chain sequence in order to modify intermediate results.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Seq\n     * @param {*} value The value to provide to `interceptor`.\n     * @param {Function} interceptor The function to invoke.\n     * @returns {*} Returns `value`.\n     * @example\n     *\n     * _([1, 2, 3])\n     *  .tap(function(array) {\n     *    // Mutate input array.\n     *    array.pop();\n     *  })\n     *  .reverse()\n     *  .value();\n     * // => [2, 1]\n     */\n    function tap(value, interceptor) {\n      interceptor(value);\n      return value;\n    }\n\n    /**\n     * This method is like `_.tap` except that it returns the result of `interceptor`.\n     * The purpose of this method is to \"pass thru\" values replacing intermediate\n     * results in a method chain sequence.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Seq\n     * @param {*} value The value to provide to `interceptor`.\n     * @param {Function} interceptor The function to invoke.\n     * @returns {*} Returns the result of `interceptor`.\n     * @example\n     *\n     * _('  abc  ')\n     *  .chain()\n     *  .trim()\n     *  .thru(function(value) {\n     *    return [value];\n     *  })\n     *  .value();\n     * // => ['abc']\n     */\n    function thru(value, interceptor) {\n      return interceptor(value);\n    }\n\n    /**\n     * This method is the wrapper version of `_.at`.\n     *\n     * @name at\n     * @memberOf _\n     * @since 1.0.0\n     * @category Seq\n     * @param {...(string|string[])} [paths] The property paths to pick.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n     *\n     * _(object).at(['a[0].b.c', 'a[1]']).value();\n     * // => [3, 4]\n     */\n    var wrapperAt = flatRest(function(paths) {\n      var length = paths.length,\n          start = length ? paths[0] : 0,\n          value = this.__wrapped__,\n          interceptor = function(object) { return baseAt(object, paths); };\n\n      if (length > 1 || this.__actions__.length ||\n          !(value instanceof LazyWrapper) || !isIndex(start)) {\n        return this.thru(interceptor);\n      }\n      value = value.slice(start, +start + (length ? 1 : 0));\n      value.__actions__.push({\n        'func': thru,\n        'args': [interceptor],\n        'thisArg': undefined\n      });\n      return new LodashWrapper(value, this.__chain__).thru(function(array) {\n        if (length && !array.length) {\n          array.push(undefined);\n        }\n        return array;\n      });\n    });\n\n    /**\n     * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.\n     *\n     * @name chain\n     * @memberOf _\n     * @since 0.1.0\n     * @category Seq\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36 },\n     *   { 'user': 'fred',   'age': 40 }\n     * ];\n     *\n     * // A sequence without explicit chaining.\n     * _(users).head();\n     * // => { 'user': 'barney', 'age': 36 }\n     *\n     * // A sequence with explicit chaining.\n     * _(users)\n     *   .chain()\n     *   .head()\n     *   .pick('user')\n     *   .value();\n     * // => { 'user': 'barney' }\n     */\n    function wrapperChain() {\n      return chain(this);\n    }\n\n    /**\n     * Executes the chain sequence and returns the wrapped result.\n     *\n     * @name commit\n     * @memberOf _\n     * @since 3.2.0\n     * @category Seq\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var array = [1, 2];\n     * var wrapped = _(array).push(3);\n     *\n     * console.log(array);\n     * // => [1, 2]\n     *\n     * wrapped = wrapped.commit();\n     * console.log(array);\n     * // => [1, 2, 3]\n     *\n     * wrapped.last();\n     * // => 3\n     *\n     * console.log(array);\n     * // => [1, 2, 3]\n     */\n    function wrapperCommit() {\n      return new LodashWrapper(this.value(), this.__chain__);\n    }\n\n    /**\n     * Gets the next value on a wrapped object following the\n     * [iterator protocol](https://mdn.io/iteration_protocols#iterator).\n     *\n     * @name next\n     * @memberOf _\n     * @since 4.0.0\n     * @category Seq\n     * @returns {Object} Returns the next iterator value.\n     * @example\n     *\n     * var wrapped = _([1, 2]);\n     *\n     * wrapped.next();\n     * // => { 'done': false, 'value': 1 }\n     *\n     * wrapped.next();\n     * // => { 'done': false, 'value': 2 }\n     *\n     * wrapped.next();\n     * // => { 'done': true, 'value': undefined }\n     */\n    function wrapperNext() {\n      if (this.__values__ === undefined) {\n        this.__values__ = toArray(this.value());\n      }\n      var done = this.__index__ >= this.__values__.length,\n          value = done ? undefined : this.__values__[this.__index__++];\n\n      return { 'done': done, 'value': value };\n    }\n\n    /**\n     * Enables the wrapper to be iterable.\n     *\n     * @name Symbol.iterator\n     * @memberOf _\n     * @since 4.0.0\n     * @category Seq\n     * @returns {Object} Returns the wrapper object.\n     * @example\n     *\n     * var wrapped = _([1, 2]);\n     *\n     * wrapped[Symbol.iterator]() === wrapped;\n     * // => true\n     *\n     * Array.from(wrapped);\n     * // => [1, 2]\n     */\n    function wrapperToIterator() {\n      return this;\n    }\n\n    /**\n     * Creates a clone of the chain sequence planting `value` as the wrapped value.\n     *\n     * @name plant\n     * @memberOf _\n     * @since 3.2.0\n     * @category Seq\n     * @param {*} value The value to plant.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var wrapped = _([1, 2]).map(square);\n     * var other = wrapped.plant([3, 4]);\n     *\n     * other.value();\n     * // => [9, 16]\n     *\n     * wrapped.value();\n     * // => [1, 4]\n     */\n    function wrapperPlant(value) {\n      var result,\n          parent = this;\n\n      while (parent instanceof baseLodash) {\n        var clone = wrapperClone(parent);\n        clone.__index__ = 0;\n        clone.__values__ = undefined;\n        if (result) {\n          previous.__wrapped__ = clone;\n        } else {\n          result = clone;\n        }\n        var previous = clone;\n        parent = parent.__wrapped__;\n      }\n      previous.__wrapped__ = value;\n      return result;\n    }\n\n    /**\n     * This method is the wrapper version of `_.reverse`.\n     *\n     * **Note:** This method mutates the wrapped array.\n     *\n     * @name reverse\n     * @memberOf _\n     * @since 0.1.0\n     * @category Seq\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var array = [1, 2, 3];\n     *\n     * _(array).reverse().value()\n     * // => [3, 2, 1]\n     *\n     * console.log(array);\n     * // => [3, 2, 1]\n     */\n    function wrapperReverse() {\n      var value = this.__wrapped__;\n      if (value instanceof LazyWrapper) {\n        var wrapped = value;\n        if (this.__actions__.length) {\n          wrapped = new LazyWrapper(this);\n        }\n        wrapped = wrapped.reverse();\n        wrapped.__actions__.push({\n          'func': thru,\n          'args': [reverse],\n          'thisArg': undefined\n        });\n        return new LodashWrapper(wrapped, this.__chain__);\n      }\n      return this.thru(reverse);\n    }\n\n    /**\n     * Executes the chain sequence to resolve the unwrapped value.\n     *\n     * @name value\n     * @memberOf _\n     * @since 0.1.0\n     * @alias toJSON, valueOf\n     * @category Seq\n     * @returns {*} Returns the resolved unwrapped value.\n     * @example\n     *\n     * _([1, 2, 3]).value();\n     * // => [1, 2, 3]\n     */\n    function wrapperValue() {\n      return baseWrapperValue(this.__wrapped__, this.__actions__);\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an object composed of keys generated from the results of running\n     * each element of `collection` thru `iteratee`. The corresponding value of\n     * each key is the number of times the key was returned by `iteratee`. The\n     * iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.5.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n     * @returns {Object} Returns the composed aggregate object.\n     * @example\n     *\n     * _.countBy([6.1, 4.2, 6.3], Math.floor);\n     * // => { '4': 1, '6': 2 }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.countBy(['one', 'two', 'three'], 'length');\n     * // => { '3': 2, '5': 1 }\n     */\n    var countBy = createAggregator(function(result, value, key) {\n      if (hasOwnProperty.call(result, key)) {\n        ++result[key];\n      } else {\n        baseAssignValue(result, key, 1);\n      }\n    });\n\n    /**\n     * Checks if `predicate` returns truthy for **all** elements of `collection`.\n     * Iteration is stopped once `predicate` returns falsey. The predicate is\n     * invoked with three arguments: (value, index|key, collection).\n     *\n     * **Note:** This method returns `true` for\n     * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because\n     * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of\n     * elements of empty collections.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {boolean} Returns `true` if all elements pass the predicate check,\n     *  else `false`.\n     * @example\n     *\n     * _.every([true, 1, null, 'yes'], Boolean);\n     * // => false\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': false },\n     *   { 'user': 'fred',   'age': 40, 'active': false }\n     * ];\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.every(users, { 'user': 'barney', 'active': false });\n     * // => false\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.every(users, ['active', false]);\n     * // => true\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.every(users, 'active');\n     * // => false\n     */\n    function every(collection, predicate, guard) {\n      var func = isArray(collection) ? arrayEvery : baseEvery;\n      if (guard && isIterateeCall(collection, predicate, guard)) {\n        predicate = undefined;\n      }\n      return func(collection, getIteratee(predicate, 3));\n    }\n\n    /**\n     * Iterates over elements of `collection`, returning an array of all elements\n     * `predicate` returns truthy for. The predicate is invoked with three\n     * arguments: (value, index|key, collection).\n     *\n     * **Note:** Unlike `_.remove`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new filtered array.\n     * @see _.reject\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': true },\n     *   { 'user': 'fred',   'age': 40, 'active': false }\n     * ];\n     *\n     * _.filter(users, function(o) { return !o.active; });\n     * // => objects for ['fred']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.filter(users, { 'age': 36, 'active': true });\n     * // => objects for ['barney']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.filter(users, ['active', false]);\n     * // => objects for ['fred']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.filter(users, 'active');\n     * // => objects for ['barney']\n     *\n     * // Combining several predicates using `_.overEvery` or `_.overSome`.\n     * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));\n     * // => objects for ['fred', 'barney']\n     */\n    function filter(collection, predicate) {\n      var func = isArray(collection) ? arrayFilter : baseFilter;\n      return func(collection, getIteratee(predicate, 3));\n    }\n\n    /**\n     * Iterates over elements of `collection`, returning the first element\n     * `predicate` returns truthy for. The predicate is invoked with three\n     * arguments: (value, index|key, collection).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @returns {*} Returns the matched element, else `undefined`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'age': 36, 'active': true },\n     *   { 'user': 'fred',    'age': 40, 'active': false },\n     *   { 'user': 'pebbles', 'age': 1,  'active': true }\n     * ];\n     *\n     * _.find(users, function(o) { return o.age < 40; });\n     * // => object for 'barney'\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.find(users, { 'age': 1, 'active': true });\n     * // => object for 'pebbles'\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.find(users, ['active', false]);\n     * // => object for 'fred'\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.find(users, 'active');\n     * // => object for 'barney'\n     */\n    var find = createFind(findIndex);\n\n    /**\n     * This method is like `_.find` except that it iterates over elements of\n     * `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=collection.length-1] The index to search from.\n     * @returns {*} Returns the matched element, else `undefined`.\n     * @example\n     *\n     * _.findLast([1, 2, 3, 4], function(n) {\n     *   return n % 2 == 1;\n     * });\n     * // => 3\n     */\n    var findLast = createFind(findLastIndex);\n\n    /**\n     * Creates a flattened array of values by running each element in `collection`\n     * thru `iteratee` and flattening the mapped results. The iteratee is invoked\n     * with three arguments: (value, index|key, collection).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * function duplicate(n) {\n     *   return [n, n];\n     * }\n     *\n     * _.flatMap([1, 2], duplicate);\n     * // => [1, 1, 2, 2]\n     */\n    function flatMap(collection, iteratee) {\n      return baseFlatten(map(collection, iteratee), 1);\n    }\n\n    /**\n     * This method is like `_.flatMap` except that it recursively flattens the\n     * mapped results.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * function duplicate(n) {\n     *   return [[[n, n]]];\n     * }\n     *\n     * _.flatMapDeep([1, 2], duplicate);\n     * // => [1, 1, 2, 2]\n     */\n    function flatMapDeep(collection, iteratee) {\n      return baseFlatten(map(collection, iteratee), INFINITY);\n    }\n\n    /**\n     * This method is like `_.flatMap` except that it recursively flattens the\n     * mapped results up to `depth` times.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {number} [depth=1] The maximum recursion depth.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * function duplicate(n) {\n     *   return [[[n, n]]];\n     * }\n     *\n     * _.flatMapDepth([1, 2], duplicate, 2);\n     * // => [[1, 1], [2, 2]]\n     */\n    function flatMapDepth(collection, iteratee, depth) {\n      depth = depth === undefined ? 1 : toInteger(depth);\n      return baseFlatten(map(collection, iteratee), depth);\n    }\n\n    /**\n     * Iterates over elements of `collection` and invokes `iteratee` for each element.\n     * The iteratee is invoked with three arguments: (value, index|key, collection).\n     * Iteratee functions may exit iteration early by explicitly returning `false`.\n     *\n     * **Note:** As with other \"Collections\" methods, objects with a \"length\"\n     * property are iterated like arrays. To avoid this behavior use `_.forIn`\n     * or `_.forOwn` for object iteration.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @alias each\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     * @see _.forEachRight\n     * @example\n     *\n     * _.forEach([1, 2], function(value) {\n     *   console.log(value);\n     * });\n     * // => Logs `1` then `2`.\n     *\n     * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n     */\n    function forEach(collection, iteratee) {\n      var func = isArray(collection) ? arrayEach : baseEach;\n      return func(collection, getIteratee(iteratee, 3));\n    }\n\n    /**\n     * This method is like `_.forEach` except that it iterates over elements of\n     * `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @alias eachRight\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     * @see _.forEach\n     * @example\n     *\n     * _.forEachRight([1, 2], function(value) {\n     *   console.log(value);\n     * });\n     * // => Logs `2` then `1`.\n     */\n    function forEachRight(collection, iteratee) {\n      var func = isArray(collection) ? arrayEachRight : baseEachRight;\n      return func(collection, getIteratee(iteratee, 3));\n    }\n\n    /**\n     * Creates an object composed of keys generated from the results of running\n     * each element of `collection` thru `iteratee`. The order of grouped values\n     * is determined by the order they occur in `collection`. The corresponding\n     * value of each key is an array of elements responsible for generating the\n     * key. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n     * @returns {Object} Returns the composed aggregate object.\n     * @example\n     *\n     * _.groupBy([6.1, 4.2, 6.3], Math.floor);\n     * // => { '4': [4.2], '6': [6.1, 6.3] }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.groupBy(['one', 'two', 'three'], 'length');\n     * // => { '3': ['one', 'two'], '5': ['three'] }\n     */\n    var groupBy = createAggregator(function(result, value, key) {\n      if (hasOwnProperty.call(result, key)) {\n        result[key].push(value);\n      } else {\n        baseAssignValue(result, key, [value]);\n      }\n    });\n\n    /**\n     * Checks if `value` is in `collection`. If `collection` is a string, it's\n     * checked for a substring of `value`, otherwise\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * is used for equality comparisons. If `fromIndex` is negative, it's used as\n     * the offset from the end of `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object|string} collection The collection to inspect.\n     * @param {*} value The value to search for.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n     * @returns {boolean} Returns `true` if `value` is found, else `false`.\n     * @example\n     *\n     * _.includes([1, 2, 3], 1);\n     * // => true\n     *\n     * _.includes([1, 2, 3], 1, 2);\n     * // => false\n     *\n     * _.includes({ 'a': 1, 'b': 2 }, 1);\n     * // => true\n     *\n     * _.includes('abcd', 'bc');\n     * // => true\n     */\n    function includes(collection, value, fromIndex, guard) {\n      collection = isArrayLike(collection) ? collection : values(collection);\n      fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;\n\n      var length = collection.length;\n      if (fromIndex < 0) {\n        fromIndex = nativeMax(length + fromIndex, 0);\n      }\n      return isString(collection)\n        ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)\n        : (!!length && baseIndexOf(collection, value, fromIndex) > -1);\n    }\n\n    /**\n     * Invokes the method at `path` of each element in `collection`, returning\n     * an array of the results of each invoked method. Any additional arguments\n     * are provided to each invoked method. If `path` is a function, it's invoked\n     * for, and `this` bound to, each element in `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Array|Function|string} path The path of the method to invoke or\n     *  the function invoked per iteration.\n     * @param {...*} [args] The arguments to invoke each method with.\n     * @returns {Array} Returns the array of results.\n     * @example\n     *\n     * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');\n     * // => [[1, 5, 7], [1, 2, 3]]\n     *\n     * _.invokeMap([123, 456], String.prototype.split, '');\n     * // => [['1', '2', '3'], ['4', '5', '6']]\n     */\n    var invokeMap = baseRest(function(collection, path, args) {\n      var index = -1,\n          isFunc = typeof path == 'function',\n          result = isArrayLike(collection) ? Array(collection.length) : [];\n\n      baseEach(collection, function(value) {\n        result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);\n      });\n      return result;\n    });\n\n    /**\n     * Creates an object composed of keys generated from the results of running\n     * each element of `collection` thru `iteratee`. The corresponding value of\n     * each key is the last element responsible for generating the key. The\n     * iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n     * @returns {Object} Returns the composed aggregate object.\n     * @example\n     *\n     * var array = [\n     *   { 'dir': 'left', 'code': 97 },\n     *   { 'dir': 'right', 'code': 100 }\n     * ];\n     *\n     * _.keyBy(array, function(o) {\n     *   return String.fromCharCode(o.code);\n     * });\n     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }\n     *\n     * _.keyBy(array, 'dir');\n     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }\n     */\n    var keyBy = createAggregator(function(result, value, key) {\n      baseAssignValue(result, key, value);\n    });\n\n    /**\n     * Creates an array of values by running each element in `collection` thru\n     * `iteratee`. The iteratee is invoked with three arguments:\n     * (value, index|key, collection).\n     *\n     * Many lodash methods are guarded to work as iteratees for methods like\n     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.\n     *\n     * The guarded methods are:\n     * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,\n     * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,\n     * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,\n     * `template`, `trim`, `trimEnd`, `trimStart`, and `words`\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new mapped array.\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * _.map([4, 8], square);\n     * // => [16, 64]\n     *\n     * _.map({ 'a': 4, 'b': 8 }, square);\n     * // => [16, 64] (iteration order is not guaranteed)\n     *\n     * var users = [\n     *   { 'user': 'barney' },\n     *   { 'user': 'fred' }\n     * ];\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.map(users, 'user');\n     * // => ['barney', 'fred']\n     */\n    function map(collection, iteratee) {\n      var func = isArray(collection) ? arrayMap : baseMap;\n      return func(collection, getIteratee(iteratee, 3));\n    }\n\n    /**\n     * This method is like `_.sortBy` except that it allows specifying the sort\n     * orders of the iteratees to sort by. If `orders` is unspecified, all values\n     * are sorted in ascending order. Otherwise, specify an order of \"desc\" for\n     * descending or \"asc\" for ascending sort order of corresponding values.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]\n     *  The iteratees to sort by.\n     * @param {string[]} [orders] The sort orders of `iteratees`.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n     * @returns {Array} Returns the new sorted array.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'fred',   'age': 48 },\n     *   { 'user': 'barney', 'age': 34 },\n     *   { 'user': 'fred',   'age': 40 },\n     *   { 'user': 'barney', 'age': 36 }\n     * ];\n     *\n     * // Sort by `user` in ascending order and by `age` in descending order.\n     * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);\n     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]\n     */\n    function orderBy(collection, iteratees, orders, guard) {\n      if (collection == null) {\n        return [];\n      }\n      if (!isArray(iteratees)) {\n        iteratees = iteratees == null ? [] : [iteratees];\n      }\n      orders = guard ? undefined : orders;\n      if (!isArray(orders)) {\n        orders = orders == null ? [] : [orders];\n      }\n      return baseOrderBy(collection, iteratees, orders);\n    }\n\n    /**\n     * Creates an array of elements split into two groups, the first of which\n     * contains elements `predicate` returns truthy for, the second of which\n     * contains elements `predicate` returns falsey for. The predicate is\n     * invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the array of grouped elements.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'age': 36, 'active': false },\n     *   { 'user': 'fred',    'age': 40, 'active': true },\n     *   { 'user': 'pebbles', 'age': 1,  'active': false }\n     * ];\n     *\n     * _.partition(users, function(o) { return o.active; });\n     * // => objects for [['fred'], ['barney', 'pebbles']]\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.partition(users, { 'age': 1, 'active': false });\n     * // => objects for [['pebbles'], ['barney', 'fred']]\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.partition(users, ['active', false]);\n     * // => objects for [['barney', 'pebbles'], ['fred']]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.partition(users, 'active');\n     * // => objects for [['fred'], ['barney', 'pebbles']]\n     */\n    var partition = createAggregator(function(result, value, key) {\n      result[key ? 0 : 1].push(value);\n    }, function() { return [[], []]; });\n\n    /**\n     * Reduces `collection` to a value which is the accumulated result of running\n     * each element in `collection` thru `iteratee`, where each successive\n     * invocation is supplied the return value of the previous. If `accumulator`\n     * is not given, the first element of `collection` is used as the initial\n     * value. The iteratee is invoked with four arguments:\n     * (accumulator, value, index|key, collection).\n     *\n     * Many lodash methods are guarded to work as iteratees for methods like\n     * `_.reduce`, `_.reduceRight`, and `_.transform`.\n     *\n     * The guarded methods are:\n     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,\n     * and `sortBy`\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {*} [accumulator] The initial value.\n     * @returns {*} Returns the accumulated value.\n     * @see _.reduceRight\n     * @example\n     *\n     * _.reduce([1, 2], function(sum, n) {\n     *   return sum + n;\n     * }, 0);\n     * // => 3\n     *\n     * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n     *   (result[value] || (result[value] = [])).push(key);\n     *   return result;\n     * }, {});\n     * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)\n     */\n    function reduce(collection, iteratee, accumulator) {\n      var func = isArray(collection) ? arrayReduce : baseReduce,\n          initAccum = arguments.length < 3;\n\n      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);\n    }\n\n    /**\n     * This method is like `_.reduce` except that it iterates over elements of\n     * `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {*} [accumulator] The initial value.\n     * @returns {*} Returns the accumulated value.\n     * @see _.reduce\n     * @example\n     *\n     * var array = [[0, 1], [2, 3], [4, 5]];\n     *\n     * _.reduceRight(array, function(flattened, other) {\n     *   return flattened.concat(other);\n     * }, []);\n     * // => [4, 5, 2, 3, 0, 1]\n     */\n    function reduceRight(collection, iteratee, accumulator) {\n      var func = isArray(collection) ? arrayReduceRight : baseReduce,\n          initAccum = arguments.length < 3;\n\n      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);\n    }\n\n    /**\n     * The opposite of `_.filter`; this method returns the elements of `collection`\n     * that `predicate` does **not** return truthy for.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new filtered array.\n     * @see _.filter\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': false },\n     *   { 'user': 'fred',   'age': 40, 'active': true }\n     * ];\n     *\n     * _.reject(users, function(o) { return !o.active; });\n     * // => objects for ['fred']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.reject(users, { 'age': 40, 'active': true });\n     * // => objects for ['barney']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.reject(users, ['active', false]);\n     * // => objects for ['fred']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.reject(users, 'active');\n     * // => objects for ['barney']\n     */\n    function reject(collection, predicate) {\n      var func = isArray(collection) ? arrayFilter : baseFilter;\n      return func(collection, negate(getIteratee(predicate, 3)));\n    }\n\n    /**\n     * Gets a random element from `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to sample.\n     * @returns {*} Returns the random element.\n     * @example\n     *\n     * _.sample([1, 2, 3, 4]);\n     * // => 2\n     */\n    function sample(collection) {\n      var func = isArray(collection) ? arraySample : baseSample;\n      return func(collection);\n    }\n\n    /**\n     * Gets `n` random elements at unique keys from `collection` up to the\n     * size of `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to sample.\n     * @param {number} [n=1] The number of elements to sample.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the random elements.\n     * @example\n     *\n     * _.sampleSize([1, 2, 3], 2);\n     * // => [3, 1]\n     *\n     * _.sampleSize([1, 2, 3], 4);\n     * // => [2, 3, 1]\n     */\n    function sampleSize(collection, n, guard) {\n      if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {\n        n = 1;\n      } else {\n        n = toInteger(n);\n      }\n      var func = isArray(collection) ? arraySampleSize : baseSampleSize;\n      return func(collection, n);\n    }\n\n    /**\n     * Creates an array of shuffled values, using a version of the\n     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to shuffle.\n     * @returns {Array} Returns the new shuffled array.\n     * @example\n     *\n     * _.shuffle([1, 2, 3, 4]);\n     * // => [4, 1, 3, 2]\n     */\n    function shuffle(collection) {\n      var func = isArray(collection) ? arrayShuffle : baseShuffle;\n      return func(collection);\n    }\n\n    /**\n     * Gets the size of `collection` by returning its length for array-like\n     * values or the number of own enumerable string keyed properties for objects.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object|string} collection The collection to inspect.\n     * @returns {number} Returns the collection size.\n     * @example\n     *\n     * _.size([1, 2, 3]);\n     * // => 3\n     *\n     * _.size({ 'a': 1, 'b': 2 });\n     * // => 2\n     *\n     * _.size('pebbles');\n     * // => 7\n     */\n    function size(collection) {\n      if (collection == null) {\n        return 0;\n      }\n      if (isArrayLike(collection)) {\n        return isString(collection) ? stringSize(collection) : collection.length;\n      }\n      var tag = getTag(collection);\n      if (tag == mapTag || tag == setTag) {\n        return collection.size;\n      }\n      return baseKeys(collection).length;\n    }\n\n    /**\n     * Checks if `predicate` returns truthy for **any** element of `collection`.\n     * Iteration is stopped once `predicate` returns truthy. The predicate is\n     * invoked with three arguments: (value, index|key, collection).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {boolean} Returns `true` if any element passes the predicate check,\n     *  else `false`.\n     * @example\n     *\n     * _.some([null, 0, 'yes', false], Boolean);\n     * // => true\n     *\n     * var users = [\n     *   { 'user': 'barney', 'active': true },\n     *   { 'user': 'fred',   'active': false }\n     * ];\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.some(users, { 'user': 'barney', 'active': false });\n     * // => false\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.some(users, ['active', false]);\n     * // => true\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.some(users, 'active');\n     * // => true\n     */\n    function some(collection, predicate, guard) {\n      var func = isArray(collection) ? arraySome : baseSome;\n      if (guard && isIterateeCall(collection, predicate, guard)) {\n        predicate = undefined;\n      }\n      return func(collection, getIteratee(predicate, 3));\n    }\n\n    /**\n     * Creates an array of elements, sorted in ascending order by the results of\n     * running each element in a collection thru each iteratee. This method\n     * performs a stable sort, that is, it preserves the original sort order of\n     * equal elements. The iteratees are invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {...(Function|Function[])} [iteratees=[_.identity]]\n     *  The iteratees to sort by.\n     * @returns {Array} Returns the new sorted array.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'fred',   'age': 48 },\n     *   { 'user': 'barney', 'age': 36 },\n     *   { 'user': 'fred',   'age': 30 },\n     *   { 'user': 'barney', 'age': 34 }\n     * ];\n     *\n     * _.sortBy(users, [function(o) { return o.user; }]);\n     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]\n     *\n     * _.sortBy(users, ['user', 'age']);\n     * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]\n     */\n    var sortBy = baseRest(function(collection, iteratees) {\n      if (collection == null) {\n        return [];\n      }\n      var length = iteratees.length;\n      if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {\n        iteratees = [];\n      } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {\n        iteratees = [iteratees[0]];\n      }\n      return baseOrderBy(collection, baseFlatten(iteratees, 1), []);\n    });\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Gets the timestamp of the number of milliseconds that have elapsed since\n     * the Unix epoch (1 January 1970 00:00:00 UTC).\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Date\n     * @returns {number} Returns the timestamp.\n     * @example\n     *\n     * _.defer(function(stamp) {\n     *   console.log(_.now() - stamp);\n     * }, _.now());\n     * // => Logs the number of milliseconds it took for the deferred invocation.\n     */\n    var now = ctxNow || function() {\n      return root.Date.now();\n    };\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * The opposite of `_.before`; this method creates a function that invokes\n     * `func` once it's called `n` or more times.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {number} n The number of calls before `func` is invoked.\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new restricted function.\n     * @example\n     *\n     * var saves = ['profile', 'settings'];\n     *\n     * var done = _.after(saves.length, function() {\n     *   console.log('done saving!');\n     * });\n     *\n     * _.forEach(saves, function(type) {\n     *   asyncSave({ 'type': type, 'complete': done });\n     * });\n     * // => Logs 'done saving!' after the two async saves have completed.\n     */\n    function after(n, func) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      n = toInteger(n);\n      return function() {\n        if (--n < 1) {\n          return func.apply(this, arguments);\n        }\n      };\n    }\n\n    /**\n     * Creates a function that invokes `func`, with up to `n` arguments,\n     * ignoring any additional arguments.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} func The function to cap arguments for.\n     * @param {number} [n=func.length] The arity cap.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the new capped function.\n     * @example\n     *\n     * _.map(['6', '8', '10'], _.ary(parseInt, 1));\n     * // => [6, 8, 10]\n     */\n    function ary(func, n, guard) {\n      n = guard ? undefined : n;\n      n = (func && n == null) ? func.length : n;\n      return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);\n    }\n\n    /**\n     * Creates a function that invokes `func`, with the `this` binding and arguments\n     * of the created function, while it's called less than `n` times. Subsequent\n     * calls to the created function return the result of the last `func` invocation.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {number} n The number of calls at which `func` is no longer invoked.\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new restricted function.\n     * @example\n     *\n     * jQuery(element).on('click', _.before(5, addContactToList));\n     * // => Allows adding up to 4 contacts to the list.\n     */\n    function before(n, func) {\n      var result;\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      n = toInteger(n);\n      return function() {\n        if (--n > 0) {\n          result = func.apply(this, arguments);\n        }\n        if (n <= 1) {\n          func = undefined;\n        }\n        return result;\n      };\n    }\n\n    /**\n     * Creates a function that invokes `func` with the `this` binding of `thisArg`\n     * and `partials` prepended to the arguments it receives.\n     *\n     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,\n     * may be used as a placeholder for partially applied arguments.\n     *\n     * **Note:** Unlike native `Function#bind`, this method doesn't set the \"length\"\n     * property of bound functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to bind.\n     * @param {*} thisArg The `this` binding of `func`.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new bound function.\n     * @example\n     *\n     * function greet(greeting, punctuation) {\n     *   return greeting + ' ' + this.user + punctuation;\n     * }\n     *\n     * var object = { 'user': 'fred' };\n     *\n     * var bound = _.bind(greet, object, 'hi');\n     * bound('!');\n     * // => 'hi fred!'\n     *\n     * // Bound with placeholders.\n     * var bound = _.bind(greet, object, _, '!');\n     * bound('hi');\n     * // => 'hi fred!'\n     */\n    var bind = baseRest(function(func, thisArg, partials) {\n      var bitmask = WRAP_BIND_FLAG;\n      if (partials.length) {\n        var holders = replaceHolders(partials, getHolder(bind));\n        bitmask |= WRAP_PARTIAL_FLAG;\n      }\n      return createWrap(func, bitmask, thisArg, partials, holders);\n    });\n\n    /**\n     * Creates a function that invokes the method at `object[key]` with `partials`\n     * prepended to the arguments it receives.\n     *\n     * This method differs from `_.bind` by allowing bound functions to reference\n     * methods that may be redefined or don't yet exist. See\n     * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)\n     * for more details.\n     *\n     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for partially applied arguments.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.10.0\n     * @category Function\n     * @param {Object} object The object to invoke the method on.\n     * @param {string} key The key of the method.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new bound function.\n     * @example\n     *\n     * var object = {\n     *   'user': 'fred',\n     *   'greet': function(greeting, punctuation) {\n     *     return greeting + ' ' + this.user + punctuation;\n     *   }\n     * };\n     *\n     * var bound = _.bindKey(object, 'greet', 'hi');\n     * bound('!');\n     * // => 'hi fred!'\n     *\n     * object.greet = function(greeting, punctuation) {\n     *   return greeting + 'ya ' + this.user + punctuation;\n     * };\n     *\n     * bound('!');\n     * // => 'hiya fred!'\n     *\n     * // Bound with placeholders.\n     * var bound = _.bindKey(object, 'greet', _, '!');\n     * bound('hi');\n     * // => 'hiya fred!'\n     */\n    var bindKey = baseRest(function(object, key, partials) {\n      var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;\n      if (partials.length) {\n        var holders = replaceHolders(partials, getHolder(bindKey));\n        bitmask |= WRAP_PARTIAL_FLAG;\n      }\n      return createWrap(key, bitmask, object, partials, holders);\n    });\n\n    /**\n     * Creates a function that accepts arguments of `func` and either invokes\n     * `func` returning its result, if at least `arity` number of arguments have\n     * been provided, or returns a function that accepts the remaining `func`\n     * arguments, and so on. The arity of `func` may be specified if `func.length`\n     * is not sufficient.\n     *\n     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,\n     * may be used as a placeholder for provided arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of curried functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Function\n     * @param {Function} func The function to curry.\n     * @param {number} [arity=func.length] The arity of `func`.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the new curried function.\n     * @example\n     *\n     * var abc = function(a, b, c) {\n     *   return [a, b, c];\n     * };\n     *\n     * var curried = _.curry(abc);\n     *\n     * curried(1)(2)(3);\n     * // => [1, 2, 3]\n     *\n     * curried(1, 2)(3);\n     * // => [1, 2, 3]\n     *\n     * curried(1, 2, 3);\n     * // => [1, 2, 3]\n     *\n     * // Curried with placeholders.\n     * curried(1)(_, 3)(2);\n     * // => [1, 2, 3]\n     */\n    function curry(func, arity, guard) {\n      arity = guard ? undefined : arity;\n      var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n      result.placeholder = curry.placeholder;\n      return result;\n    }\n\n    /**\n     * This method is like `_.curry` except that arguments are applied to `func`\n     * in the manner of `_.partialRight` instead of `_.partial`.\n     *\n     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for provided arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of curried functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} func The function to curry.\n     * @param {number} [arity=func.length] The arity of `func`.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the new curried function.\n     * @example\n     *\n     * var abc = function(a, b, c) {\n     *   return [a, b, c];\n     * };\n     *\n     * var curried = _.curryRight(abc);\n     *\n     * curried(3)(2)(1);\n     * // => [1, 2, 3]\n     *\n     * curried(2, 3)(1);\n     * // => [1, 2, 3]\n     *\n     * curried(1, 2, 3);\n     * // => [1, 2, 3]\n     *\n     * // Curried with placeholders.\n     * curried(3)(1, _)(2);\n     * // => [1, 2, 3]\n     */\n    function curryRight(func, arity, guard) {\n      arity = guard ? undefined : arity;\n      var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n      result.placeholder = curryRight.placeholder;\n      return result;\n    }\n\n    /**\n     * Creates a debounced function that delays invoking `func` until after `wait`\n     * milliseconds have elapsed since the last time the debounced function was\n     * invoked. The debounced function comes with a `cancel` method to cancel\n     * delayed `func` invocations and a `flush` method to immediately invoke them.\n     * Provide `options` to indicate whether `func` should be invoked on the\n     * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n     * with the last arguments provided to the debounced function. Subsequent\n     * calls to the debounced function return the result of the last `func`\n     * invocation.\n     *\n     * **Note:** If `leading` and `trailing` options are `true`, `func` is\n     * invoked on the trailing edge of the timeout only if the debounced function\n     * is invoked more than once during the `wait` timeout.\n     *\n     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n     * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n     *\n     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n     * for details over the differences between `_.debounce` and `_.throttle`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to debounce.\n     * @param {number} [wait=0] The number of milliseconds to delay.\n     * @param {Object} [options={}] The options object.\n     * @param {boolean} [options.leading=false]\n     *  Specify invoking on the leading edge of the timeout.\n     * @param {number} [options.maxWait]\n     *  The maximum time `func` is allowed to be delayed before it's invoked.\n     * @param {boolean} [options.trailing=true]\n     *  Specify invoking on the trailing edge of the timeout.\n     * @returns {Function} Returns the new debounced function.\n     * @example\n     *\n     * // Avoid costly calculations while the window size is in flux.\n     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n     *\n     * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n     * jQuery(element).on('click', _.debounce(sendMail, 300, {\n     *   'leading': true,\n     *   'trailing': false\n     * }));\n     *\n     * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n     * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n     * var source = new EventSource('/stream');\n     * jQuery(source).on('message', debounced);\n     *\n     * // Cancel the trailing debounced invocation.\n     * jQuery(window).on('popstate', debounced.cancel);\n     */\n    function debounce(func, wait, options) {\n      var lastArgs,\n          lastThis,\n          maxWait,\n          result,\n          timerId,\n          lastCallTime,\n          lastInvokeTime = 0,\n          leading = false,\n          maxing = false,\n          trailing = true;\n\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      wait = toNumber(wait) || 0;\n      if (isObject(options)) {\n        leading = !!options.leading;\n        maxing = 'maxWait' in options;\n        maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n        trailing = 'trailing' in options ? !!options.trailing : trailing;\n      }\n\n      function invokeFunc(time) {\n        var args = lastArgs,\n            thisArg = lastThis;\n\n        lastArgs = lastThis = undefined;\n        lastInvokeTime = time;\n        result = func.apply(thisArg, args);\n        return result;\n      }\n\n      function leadingEdge(time) {\n        // Reset any `maxWait` timer.\n        lastInvokeTime = time;\n        // Start the timer for the trailing edge.\n        timerId = setTimeout(timerExpired, wait);\n        // Invoke the leading edge.\n        return leading ? invokeFunc(time) : result;\n      }\n\n      function remainingWait(time) {\n        var timeSinceLastCall = time - lastCallTime,\n            timeSinceLastInvoke = time - lastInvokeTime,\n            timeWaiting = wait - timeSinceLastCall;\n\n        return maxing\n          ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n          : timeWaiting;\n      }\n\n      function shouldInvoke(time) {\n        var timeSinceLastCall = time - lastCallTime,\n            timeSinceLastInvoke = time - lastInvokeTime;\n\n        // Either this is the first call, activity has stopped and we're at the\n        // trailing edge, the system time has gone backwards and we're treating\n        // it as the trailing edge, or we've hit the `maxWait` limit.\n        return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n          (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n      }\n\n      function timerExpired() {\n        var time = now();\n        if (shouldInvoke(time)) {\n          return trailingEdge(time);\n        }\n        // Restart the timer.\n        timerId = setTimeout(timerExpired, remainingWait(time));\n      }\n\n      function trailingEdge(time) {\n        timerId = undefined;\n\n        // Only invoke if we have `lastArgs` which means `func` has been\n        // debounced at least once.\n        if (trailing && lastArgs) {\n          return invokeFunc(time);\n        }\n        lastArgs = lastThis = undefined;\n        return result;\n      }\n\n      function cancel() {\n        if (timerId !== undefined) {\n          clearTimeout(timerId);\n        }\n        lastInvokeTime = 0;\n        lastArgs = lastCallTime = lastThis = timerId = undefined;\n      }\n\n      function flush() {\n        return timerId === undefined ? result : trailingEdge(now());\n      }\n\n      function debounced() {\n        var time = now(),\n            isInvoking = shouldInvoke(time);\n\n        lastArgs = arguments;\n        lastThis = this;\n        lastCallTime = time;\n\n        if (isInvoking) {\n          if (timerId === undefined) {\n            return leadingEdge(lastCallTime);\n          }\n          if (maxing) {\n            // Handle invocations in a tight loop.\n            clearTimeout(timerId);\n            timerId = setTimeout(timerExpired, wait);\n            return invokeFunc(lastCallTime);\n          }\n        }\n        if (timerId === undefined) {\n          timerId = setTimeout(timerExpired, wait);\n        }\n        return result;\n      }\n      debounced.cancel = cancel;\n      debounced.flush = flush;\n      return debounced;\n    }\n\n    /**\n     * Defers invoking the `func` until the current call stack has cleared. Any\n     * additional arguments are provided to `func` when it's invoked.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to defer.\n     * @param {...*} [args] The arguments to invoke `func` with.\n     * @returns {number} Returns the timer id.\n     * @example\n     *\n     * _.defer(function(text) {\n     *   console.log(text);\n     * }, 'deferred');\n     * // => Logs 'deferred' after one millisecond.\n     */\n    var defer = baseRest(function(func, args) {\n      return baseDelay(func, 1, args);\n    });\n\n    /**\n     * Invokes `func` after `wait` milliseconds. Any additional arguments are\n     * provided to `func` when it's invoked.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to delay.\n     * @param {number} wait The number of milliseconds to delay invocation.\n     * @param {...*} [args] The arguments to invoke `func` with.\n     * @returns {number} Returns the timer id.\n     * @example\n     *\n     * _.delay(function(text) {\n     *   console.log(text);\n     * }, 1000, 'later');\n     * // => Logs 'later' after one second.\n     */\n    var delay = baseRest(function(func, wait, args) {\n      return baseDelay(func, toNumber(wait) || 0, args);\n    });\n\n    /**\n     * Creates a function that invokes `func` with arguments reversed.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Function\n     * @param {Function} func The function to flip arguments for.\n     * @returns {Function} Returns the new flipped function.\n     * @example\n     *\n     * var flipped = _.flip(function() {\n     *   return _.toArray(arguments);\n     * });\n     *\n     * flipped('a', 'b', 'c', 'd');\n     * // => ['d', 'c', 'b', 'a']\n     */\n    function flip(func) {\n      return createWrap(func, WRAP_FLIP_FLAG);\n    }\n\n    /**\n     * Creates a function that memoizes the result of `func`. If `resolver` is\n     * provided, it determines the cache key for storing the result based on the\n     * arguments provided to the memoized function. By default, the first argument\n     * provided to the memoized function is used as the map cache key. The `func`\n     * is invoked with the `this` binding of the memoized function.\n     *\n     * **Note:** The cache is exposed as the `cache` property on the memoized\n     * function. Its creation may be customized by replacing the `_.memoize.Cache`\n     * constructor with one whose instances implement the\n     * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n     * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to have its output memoized.\n     * @param {Function} [resolver] The function to resolve the cache key.\n     * @returns {Function} Returns the new memoized function.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2 };\n     * var other = { 'c': 3, 'd': 4 };\n     *\n     * var values = _.memoize(_.values);\n     * values(object);\n     * // => [1, 2]\n     *\n     * values(other);\n     * // => [3, 4]\n     *\n     * object.a = 2;\n     * values(object);\n     * // => [1, 2]\n     *\n     * // Modify the result cache.\n     * values.cache.set(object, ['a', 'b']);\n     * values(object);\n     * // => ['a', 'b']\n     *\n     * // Replace `_.memoize.Cache`.\n     * _.memoize.Cache = WeakMap;\n     */\n    function memoize(func, resolver) {\n      if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      var memoized = function() {\n        var args = arguments,\n            key = resolver ? resolver.apply(this, args) : args[0],\n            cache = memoized.cache;\n\n        if (cache.has(key)) {\n          return cache.get(key);\n        }\n        var result = func.apply(this, args);\n        memoized.cache = cache.set(key, result) || cache;\n        return result;\n      };\n      memoized.cache = new (memoize.Cache || MapCache);\n      return memoized;\n    }\n\n    // Expose `MapCache`.\n    memoize.Cache = MapCache;\n\n    /**\n     * Creates a function that negates the result of the predicate `func`. The\n     * `func` predicate is invoked with the `this` binding and arguments of the\n     * created function.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} predicate The predicate to negate.\n     * @returns {Function} Returns the new negated function.\n     * @example\n     *\n     * function isEven(n) {\n     *   return n % 2 == 0;\n     * }\n     *\n     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));\n     * // => [1, 3, 5]\n     */\n    function negate(predicate) {\n      if (typeof predicate != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      return function() {\n        var args = arguments;\n        switch (args.length) {\n          case 0: return !predicate.call(this);\n          case 1: return !predicate.call(this, args[0]);\n          case 2: return !predicate.call(this, args[0], args[1]);\n          case 3: return !predicate.call(this, args[0], args[1], args[2]);\n        }\n        return !predicate.apply(this, args);\n      };\n    }\n\n    /**\n     * Creates a function that is restricted to invoking `func` once. Repeat calls\n     * to the function return the value of the first invocation. The `func` is\n     * invoked with the `this` binding and arguments of the created function.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new restricted function.\n     * @example\n     *\n     * var initialize = _.once(createApplication);\n     * initialize();\n     * initialize();\n     * // => `createApplication` is invoked once\n     */\n    function once(func) {\n      return before(2, func);\n    }\n\n    /**\n     * Creates a function that invokes `func` with its arguments transformed.\n     *\n     * @static\n     * @since 4.0.0\n     * @memberOf _\n     * @category Function\n     * @param {Function} func The function to wrap.\n     * @param {...(Function|Function[])} [transforms=[_.identity]]\n     *  The argument transforms.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * function doubled(n) {\n     *   return n * 2;\n     * }\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var func = _.overArgs(function(x, y) {\n     *   return [x, y];\n     * }, [square, doubled]);\n     *\n     * func(9, 3);\n     * // => [81, 6]\n     *\n     * func(10, 5);\n     * // => [100, 10]\n     */\n    var overArgs = castRest(function(func, transforms) {\n      transforms = (transforms.length == 1 && isArray(transforms[0]))\n        ? arrayMap(transforms[0], baseUnary(getIteratee()))\n        : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));\n\n      var funcsLength = transforms.length;\n      return baseRest(function(args) {\n        var index = -1,\n            length = nativeMin(args.length, funcsLength);\n\n        while (++index < length) {\n          args[index] = transforms[index].call(this, args[index]);\n        }\n        return apply(func, this, args);\n      });\n    });\n\n    /**\n     * Creates a function that invokes `func` with `partials` prepended to the\n     * arguments it receives. This method is like `_.bind` except it does **not**\n     * alter the `this` binding.\n     *\n     * The `_.partial.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for partially applied arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of partially\n     * applied functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.2.0\n     * @category Function\n     * @param {Function} func The function to partially apply arguments to.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new partially applied function.\n     * @example\n     *\n     * function greet(greeting, name) {\n     *   return greeting + ' ' + name;\n     * }\n     *\n     * var sayHelloTo = _.partial(greet, 'hello');\n     * sayHelloTo('fred');\n     * // => 'hello fred'\n     *\n     * // Partially applied with placeholders.\n     * var greetFred = _.partial(greet, _, 'fred');\n     * greetFred('hi');\n     * // => 'hi fred'\n     */\n    var partial = baseRest(function(func, partials) {\n      var holders = replaceHolders(partials, getHolder(partial));\n      return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);\n    });\n\n    /**\n     * This method is like `_.partial` except that partially applied arguments\n     * are appended to the arguments it receives.\n     *\n     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for partially applied arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of partially\n     * applied functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.0.0\n     * @category Function\n     * @param {Function} func The function to partially apply arguments to.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new partially applied function.\n     * @example\n     *\n     * function greet(greeting, name) {\n     *   return greeting + ' ' + name;\n     * }\n     *\n     * var greetFred = _.partialRight(greet, 'fred');\n     * greetFred('hi');\n     * // => 'hi fred'\n     *\n     * // Partially applied with placeholders.\n     * var sayHelloTo = _.partialRight(greet, 'hello', _);\n     * sayHelloTo('fred');\n     * // => 'hello fred'\n     */\n    var partialRight = baseRest(function(func, partials) {\n      var holders = replaceHolders(partials, getHolder(partialRight));\n      return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);\n    });\n\n    /**\n     * Creates a function that invokes `func` with arguments arranged according\n     * to the specified `indexes` where the argument value at the first index is\n     * provided as the first argument, the argument value at the second index is\n     * provided as the second argument, and so on.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} func The function to rearrange arguments for.\n     * @param {...(number|number[])} indexes The arranged argument indexes.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var rearged = _.rearg(function(a, b, c) {\n     *   return [a, b, c];\n     * }, [2, 0, 1]);\n     *\n     * rearged('b', 'c', 'a')\n     * // => ['a', 'b', 'c']\n     */\n    var rearg = flatRest(function(func, indexes) {\n      return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);\n    });\n\n    /**\n     * Creates a function that invokes `func` with the `this` binding of the\n     * created function and arguments from `start` and beyond provided as\n     * an array.\n     *\n     * **Note:** This method is based on the\n     * [rest parameter](https://mdn.io/rest_parameters).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Function\n     * @param {Function} func The function to apply a rest parameter to.\n     * @param {number} [start=func.length-1] The start position of the rest parameter.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var say = _.rest(function(what, names) {\n     *   return what + ' ' + _.initial(names).join(', ') +\n     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n     * });\n     *\n     * say('hello', 'fred', 'barney', 'pebbles');\n     * // => 'hello fred, barney, & pebbles'\n     */\n    function rest(func, start) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      start = start === undefined ? start : toInteger(start);\n      return baseRest(func, start);\n    }\n\n    /**\n     * Creates a function that invokes `func` with the `this` binding of the\n     * create function and an array of arguments much like\n     * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).\n     *\n     * **Note:** This method is based on the\n     * [spread operator](https://mdn.io/spread_operator).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.2.0\n     * @category Function\n     * @param {Function} func The function to spread arguments over.\n     * @param {number} [start=0] The start position of the spread.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var say = _.spread(function(who, what) {\n     *   return who + ' says ' + what;\n     * });\n     *\n     * say(['fred', 'hello']);\n     * // => 'fred says hello'\n     *\n     * var numbers = Promise.all([\n     *   Promise.resolve(40),\n     *   Promise.resolve(36)\n     * ]);\n     *\n     * numbers.then(_.spread(function(x, y) {\n     *   return x + y;\n     * }));\n     * // => a Promise of 76\n     */\n    function spread(func, start) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      start = start == null ? 0 : nativeMax(toInteger(start), 0);\n      return baseRest(function(args) {\n        var array = args[start],\n            otherArgs = castSlice(args, 0, start);\n\n        if (array) {\n          arrayPush(otherArgs, array);\n        }\n        return apply(func, this, otherArgs);\n      });\n    }\n\n    /**\n     * Creates a throttled function that only invokes `func` at most once per\n     * every `wait` milliseconds. The throttled function comes with a `cancel`\n     * method to cancel delayed `func` invocations and a `flush` method to\n     * immediately invoke them. Provide `options` to indicate whether `func`\n     * should be invoked on the leading and/or trailing edge of the `wait`\n     * timeout. The `func` is invoked with the last arguments provided to the\n     * throttled function. Subsequent calls to the throttled function return the\n     * result of the last `func` invocation.\n     *\n     * **Note:** If `leading` and `trailing` options are `true`, `func` is\n     * invoked on the trailing edge of the timeout only if the throttled function\n     * is invoked more than once during the `wait` timeout.\n     *\n     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n     * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n     *\n     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n     * for details over the differences between `_.throttle` and `_.debounce`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to throttle.\n     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n     * @param {Object} [options={}] The options object.\n     * @param {boolean} [options.leading=true]\n     *  Specify invoking on the leading edge of the timeout.\n     * @param {boolean} [options.trailing=true]\n     *  Specify invoking on the trailing edge of the timeout.\n     * @returns {Function} Returns the new throttled function.\n     * @example\n     *\n     * // Avoid excessively updating the position while scrolling.\n     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n     *\n     * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n     * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n     * jQuery(element).on('click', throttled);\n     *\n     * // Cancel the trailing throttled invocation.\n     * jQuery(window).on('popstate', throttled.cancel);\n     */\n    function throttle(func, wait, options) {\n      var leading = true,\n          trailing = true;\n\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      if (isObject(options)) {\n        leading = 'leading' in options ? !!options.leading : leading;\n        trailing = 'trailing' in options ? !!options.trailing : trailing;\n      }\n      return debounce(func, wait, {\n        'leading': leading,\n        'maxWait': wait,\n        'trailing': trailing\n      });\n    }\n\n    /**\n     * Creates a function that accepts up to one argument, ignoring any\n     * additional arguments.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Function\n     * @param {Function} func The function to cap arguments for.\n     * @returns {Function} Returns the new capped function.\n     * @example\n     *\n     * _.map(['6', '8', '10'], _.unary(parseInt));\n     * // => [6, 8, 10]\n     */\n    function unary(func) {\n      return ary(func, 1);\n    }\n\n    /**\n     * Creates a function that provides `value` to `wrapper` as its first\n     * argument. Any additional arguments provided to the function are appended\n     * to those provided to the `wrapper`. The wrapper is invoked with the `this`\n     * binding of the created function.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {*} value The value to wrap.\n     * @param {Function} [wrapper=identity] The wrapper function.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var p = _.wrap(_.escape, function(func, text) {\n     *   return '<p>' + func(text) + '</p>';\n     * });\n     *\n     * p('fred, barney, & pebbles');\n     * // => '<p>fred, barney, &amp; pebbles</p>'\n     */\n    function wrap(value, wrapper) {\n      return partial(castFunction(wrapper), value);\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Casts `value` as an array if it's not one.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.4.0\n     * @category Lang\n     * @param {*} value The value to inspect.\n     * @returns {Array} Returns the cast array.\n     * @example\n     *\n     * _.castArray(1);\n     * // => [1]\n     *\n     * _.castArray({ 'a': 1 });\n     * // => [{ 'a': 1 }]\n     *\n     * _.castArray('abc');\n     * // => ['abc']\n     *\n     * _.castArray(null);\n     * // => [null]\n     *\n     * _.castArray(undefined);\n     * // => [undefined]\n     *\n     * _.castArray();\n     * // => []\n     *\n     * var array = [1, 2, 3];\n     * console.log(_.castArray(array) === array);\n     * // => true\n     */\n    function castArray() {\n      if (!arguments.length) {\n        return [];\n      }\n      var value = arguments[0];\n      return isArray(value) ? value : [value];\n    }\n\n    /**\n     * Creates a shallow clone of `value`.\n     *\n     * **Note:** This method is loosely based on the\n     * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n     * and supports cloning arrays, array buffers, booleans, date objects, maps,\n     * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n     * arrays. The own enumerable properties of `arguments` objects are cloned\n     * as plain objects. An empty object is returned for uncloneable values such\n     * as error objects, functions, DOM nodes, and WeakMaps.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to clone.\n     * @returns {*} Returns the cloned value.\n     * @see _.cloneDeep\n     * @example\n     *\n     * var objects = [{ 'a': 1 }, { 'b': 2 }];\n     *\n     * var shallow = _.clone(objects);\n     * console.log(shallow[0] === objects[0]);\n     * // => true\n     */\n    function clone(value) {\n      return baseClone(value, CLONE_SYMBOLS_FLAG);\n    }\n\n    /**\n     * This method is like `_.clone` except that it accepts `customizer` which\n     * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n     * cloning is handled by the method instead. The `customizer` is invoked with\n     * up to four arguments; (value [, index|key, object, stack]).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to clone.\n     * @param {Function} [customizer] The function to customize cloning.\n     * @returns {*} Returns the cloned value.\n     * @see _.cloneDeepWith\n     * @example\n     *\n     * function customizer(value) {\n     *   if (_.isElement(value)) {\n     *     return value.cloneNode(false);\n     *   }\n     * }\n     *\n     * var el = _.cloneWith(document.body, customizer);\n     *\n     * console.log(el === document.body);\n     * // => false\n     * console.log(el.nodeName);\n     * // => 'BODY'\n     * console.log(el.childNodes.length);\n     * // => 0\n     */\n    function cloneWith(value, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n    }\n\n    /**\n     * This method is like `_.clone` except that it recursively clones `value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.0.0\n     * @category Lang\n     * @param {*} value The value to recursively clone.\n     * @returns {*} Returns the deep cloned value.\n     * @see _.clone\n     * @example\n     *\n     * var objects = [{ 'a': 1 }, { 'b': 2 }];\n     *\n     * var deep = _.cloneDeep(objects);\n     * console.log(deep[0] === objects[0]);\n     * // => false\n     */\n    function cloneDeep(value) {\n      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n    }\n\n    /**\n     * This method is like `_.cloneWith` except that it recursively clones `value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to recursively clone.\n     * @param {Function} [customizer] The function to customize cloning.\n     * @returns {*} Returns the deep cloned value.\n     * @see _.cloneWith\n     * @example\n     *\n     * function customizer(value) {\n     *   if (_.isElement(value)) {\n     *     return value.cloneNode(true);\n     *   }\n     * }\n     *\n     * var el = _.cloneDeepWith(document.body, customizer);\n     *\n     * console.log(el === document.body);\n     * // => false\n     * console.log(el.nodeName);\n     * // => 'BODY'\n     * console.log(el.childNodes.length);\n     * // => 20\n     */\n    function cloneDeepWith(value, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n    }\n\n    /**\n     * Checks if `object` conforms to `source` by invoking the predicate\n     * properties of `source` with the corresponding property values of `object`.\n     *\n     * **Note:** This method is equivalent to `_.conforms` when `source` is\n     * partially applied.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.14.0\n     * @category Lang\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2 };\n     *\n     * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n     * // => true\n     *\n     * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n     * // => false\n     */\n    function conformsTo(object, source) {\n      return source == null || baseConformsTo(object, source, keys(source));\n    }\n\n    /**\n     * Performs a\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * comparison between two values to determine if they are equivalent.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1 };\n     * var other = { 'a': 1 };\n     *\n     * _.eq(object, object);\n     * // => true\n     *\n     * _.eq(object, other);\n     * // => false\n     *\n     * _.eq('a', 'a');\n     * // => true\n     *\n     * _.eq('a', Object('a'));\n     * // => false\n     *\n     * _.eq(NaN, NaN);\n     * // => true\n     */\n    function eq(value, other) {\n      return value === other || (value !== value && other !== other);\n    }\n\n    /**\n     * Checks if `value` is greater than `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is greater than `other`,\n     *  else `false`.\n     * @see _.lt\n     * @example\n     *\n     * _.gt(3, 1);\n     * // => true\n     *\n     * _.gt(3, 3);\n     * // => false\n     *\n     * _.gt(1, 3);\n     * // => false\n     */\n    var gt = createRelationalOperation(baseGt);\n\n    /**\n     * Checks if `value` is greater than or equal to `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is greater than or equal to\n     *  `other`, else `false`.\n     * @see _.lte\n     * @example\n     *\n     * _.gte(3, 1);\n     * // => true\n     *\n     * _.gte(3, 3);\n     * // => true\n     *\n     * _.gte(1, 3);\n     * // => false\n     */\n    var gte = createRelationalOperation(function(value, other) {\n      return value >= other;\n    });\n\n    /**\n     * Checks if `value` is likely an `arguments` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n     *  else `false`.\n     * @example\n     *\n     * _.isArguments(function() { return arguments; }());\n     * // => true\n     *\n     * _.isArguments([1, 2, 3]);\n     * // => false\n     */\n    var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n      return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n        !propertyIsEnumerable.call(value, 'callee');\n    };\n\n    /**\n     * Checks if `value` is classified as an `Array` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n     * @example\n     *\n     * _.isArray([1, 2, 3]);\n     * // => true\n     *\n     * _.isArray(document.body.children);\n     * // => false\n     *\n     * _.isArray('abc');\n     * // => false\n     *\n     * _.isArray(_.noop);\n     * // => false\n     */\n    var isArray = Array.isArray;\n\n    /**\n     * Checks if `value` is classified as an `ArrayBuffer` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n     * @example\n     *\n     * _.isArrayBuffer(new ArrayBuffer(2));\n     * // => true\n     *\n     * _.isArrayBuffer(new Array(2));\n     * // => false\n     */\n    var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n\n    /**\n     * Checks if `value` is array-like. A value is considered array-like if it's\n     * not a function and has a `value.length` that's an integer greater than or\n     * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n     * @example\n     *\n     * _.isArrayLike([1, 2, 3]);\n     * // => true\n     *\n     * _.isArrayLike(document.body.children);\n     * // => true\n     *\n     * _.isArrayLike('abc');\n     * // => true\n     *\n     * _.isArrayLike(_.noop);\n     * // => false\n     */\n    function isArrayLike(value) {\n      return value != null && isLength(value.length) && !isFunction(value);\n    }\n\n    /**\n     * This method is like `_.isArrayLike` except that it also checks if `value`\n     * is an object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array-like object,\n     *  else `false`.\n     * @example\n     *\n     * _.isArrayLikeObject([1, 2, 3]);\n     * // => true\n     *\n     * _.isArrayLikeObject(document.body.children);\n     * // => true\n     *\n     * _.isArrayLikeObject('abc');\n     * // => false\n     *\n     * _.isArrayLikeObject(_.noop);\n     * // => false\n     */\n    function isArrayLikeObject(value) {\n      return isObjectLike(value) && isArrayLike(value);\n    }\n\n    /**\n     * Checks if `value` is classified as a boolean primitive or object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n     * @example\n     *\n     * _.isBoolean(false);\n     * // => true\n     *\n     * _.isBoolean(null);\n     * // => false\n     */\n    function isBoolean(value) {\n      return value === true || value === false ||\n        (isObjectLike(value) && baseGetTag(value) == boolTag);\n    }\n\n    /**\n     * Checks if `value` is a buffer.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n     * @example\n     *\n     * _.isBuffer(new Buffer(2));\n     * // => true\n     *\n     * _.isBuffer(new Uint8Array(2));\n     * // => false\n     */\n    var isBuffer = nativeIsBuffer || stubFalse;\n\n    /**\n     * Checks if `value` is classified as a `Date` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n     * @example\n     *\n     * _.isDate(new Date);\n     * // => true\n     *\n     * _.isDate('Mon April 23 2012');\n     * // => false\n     */\n    var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n\n    /**\n     * Checks if `value` is likely a DOM element.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n     * @example\n     *\n     * _.isElement(document.body);\n     * // => true\n     *\n     * _.isElement('<body>');\n     * // => false\n     */\n    function isElement(value) {\n      return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n    }\n\n    /**\n     * Checks if `value` is an empty object, collection, map, or set.\n     *\n     * Objects are considered empty if they have no own enumerable string keyed\n     * properties.\n     *\n     * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n     * jQuery-like collections are considered empty if they have a `length` of `0`.\n     * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n     * @example\n     *\n     * _.isEmpty(null);\n     * // => true\n     *\n     * _.isEmpty(true);\n     * // => true\n     *\n     * _.isEmpty(1);\n     * // => true\n     *\n     * _.isEmpty([1, 2, 3]);\n     * // => false\n     *\n     * _.isEmpty({ 'a': 1 });\n     * // => false\n     */\n    function isEmpty(value) {\n      if (value == null) {\n        return true;\n      }\n      if (isArrayLike(value) &&\n          (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n            isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n        return !value.length;\n      }\n      var tag = getTag(value);\n      if (tag == mapTag || tag == setTag) {\n        return !value.size;\n      }\n      if (isPrototype(value)) {\n        return !baseKeys(value).length;\n      }\n      for (var key in value) {\n        if (hasOwnProperty.call(value, key)) {\n          return false;\n        }\n      }\n      return true;\n    }\n\n    /**\n     * Performs a deep comparison between two values to determine if they are\n     * equivalent.\n     *\n     * **Note:** This method supports comparing arrays, array buffers, booleans,\n     * date objects, error objects, maps, numbers, `Object` objects, regexes,\n     * sets, strings, symbols, and typed arrays. `Object` objects are compared\n     * by their own, not inherited, enumerable properties. Functions and DOM\n     * nodes are compared by strict equality, i.e. `===`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1 };\n     * var other = { 'a': 1 };\n     *\n     * _.isEqual(object, other);\n     * // => true\n     *\n     * object === other;\n     * // => false\n     */\n    function isEqual(value, other) {\n      return baseIsEqual(value, other);\n    }\n\n    /**\n     * This method is like `_.isEqual` except that it accepts `customizer` which\n     * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n     * are handled by the method instead. The `customizer` is invoked with up to\n     * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     * @example\n     *\n     * function isGreeting(value) {\n     *   return /^h(?:i|ello)$/.test(value);\n     * }\n     *\n     * function customizer(objValue, othValue) {\n     *   if (isGreeting(objValue) && isGreeting(othValue)) {\n     *     return true;\n     *   }\n     * }\n     *\n     * var array = ['hello', 'goodbye'];\n     * var other = ['hi', 'goodbye'];\n     *\n     * _.isEqualWith(array, other, customizer);\n     * // => true\n     */\n    function isEqualWith(value, other, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      var result = customizer ? customizer(value, other) : undefined;\n      return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n    }\n\n    /**\n     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n     * `SyntaxError`, `TypeError`, or `URIError` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n     * @example\n     *\n     * _.isError(new Error);\n     * // => true\n     *\n     * _.isError(Error);\n     * // => false\n     */\n    function isError(value) {\n      if (!isObjectLike(value)) {\n        return false;\n      }\n      var tag = baseGetTag(value);\n      return tag == errorTag || tag == domExcTag ||\n        (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));\n    }\n\n    /**\n     * Checks if `value` is a finite primitive number.\n     *\n     * **Note:** This method is based on\n     * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n     * @example\n     *\n     * _.isFinite(3);\n     * // => true\n     *\n     * _.isFinite(Number.MIN_VALUE);\n     * // => true\n     *\n     * _.isFinite(Infinity);\n     * // => false\n     *\n     * _.isFinite('3');\n     * // => false\n     */\n    function isFinite(value) {\n      return typeof value == 'number' && nativeIsFinite(value);\n    }\n\n    /**\n     * Checks if `value` is classified as a `Function` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n     * @example\n     *\n     * _.isFunction(_);\n     * // => true\n     *\n     * _.isFunction(/abc/);\n     * // => false\n     */\n    function isFunction(value) {\n      if (!isObject(value)) {\n        return false;\n      }\n      // The use of `Object#toString` avoids issues with the `typeof` operator\n      // in Safari 9 which returns 'object' for typed arrays and other constructors.\n      var tag = baseGetTag(value);\n      return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n    }\n\n    /**\n     * Checks if `value` is an integer.\n     *\n     * **Note:** This method is based on\n     * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n     * @example\n     *\n     * _.isInteger(3);\n     * // => true\n     *\n     * _.isInteger(Number.MIN_VALUE);\n     * // => false\n     *\n     * _.isInteger(Infinity);\n     * // => false\n     *\n     * _.isInteger('3');\n     * // => false\n     */\n    function isInteger(value) {\n      return typeof value == 'number' && value == toInteger(value);\n    }\n\n    /**\n     * Checks if `value` is a valid array-like length.\n     *\n     * **Note:** This method is loosely based on\n     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n     * @example\n     *\n     * _.isLength(3);\n     * // => true\n     *\n     * _.isLength(Number.MIN_VALUE);\n     * // => false\n     *\n     * _.isLength(Infinity);\n     * // => false\n     *\n     * _.isLength('3');\n     * // => false\n     */\n    function isLength(value) {\n      return typeof value == 'number' &&\n        value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n    }\n\n    /**\n     * Checks if `value` is the\n     * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n     * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n     * @example\n     *\n     * _.isObject({});\n     * // => true\n     *\n     * _.isObject([1, 2, 3]);\n     * // => true\n     *\n     * _.isObject(_.noop);\n     * // => true\n     *\n     * _.isObject(null);\n     * // => false\n     */\n    function isObject(value) {\n      var type = typeof value;\n      return value != null && (type == 'object' || type == 'function');\n    }\n\n    /**\n     * Checks if `value` is object-like. A value is object-like if it's not `null`\n     * and has a `typeof` result of \"object\".\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n     * @example\n     *\n     * _.isObjectLike({});\n     * // => true\n     *\n     * _.isObjectLike([1, 2, 3]);\n     * // => true\n     *\n     * _.isObjectLike(_.noop);\n     * // => false\n     *\n     * _.isObjectLike(null);\n     * // => false\n     */\n    function isObjectLike(value) {\n      return value != null && typeof value == 'object';\n    }\n\n    /**\n     * Checks if `value` is classified as a `Map` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n     * @example\n     *\n     * _.isMap(new Map);\n     * // => true\n     *\n     * _.isMap(new WeakMap);\n     * // => false\n     */\n    var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\n    /**\n     * Performs a partial deep comparison between `object` and `source` to\n     * determine if `object` contains equivalent property values.\n     *\n     * **Note:** This method is equivalent to `_.matches` when `source` is\n     * partially applied.\n     *\n     * Partial comparisons will match empty array and empty object `source`\n     * values against any array or object value, respectively. See `_.isEqual`\n     * for a list of supported value comparisons.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property values to match.\n     * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2 };\n     *\n     * _.isMatch(object, { 'b': 2 });\n     * // => true\n     *\n     * _.isMatch(object, { 'b': 1 });\n     * // => false\n     */\n    function isMatch(object, source) {\n      return object === source || baseIsMatch(object, source, getMatchData(source));\n    }\n\n    /**\n     * This method is like `_.isMatch` except that it accepts `customizer` which\n     * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n     * are handled by the method instead. The `customizer` is invoked with five\n     * arguments: (objValue, srcValue, index|key, object, source).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property values to match.\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n     * @example\n     *\n     * function isGreeting(value) {\n     *   return /^h(?:i|ello)$/.test(value);\n     * }\n     *\n     * function customizer(objValue, srcValue) {\n     *   if (isGreeting(objValue) && isGreeting(srcValue)) {\n     *     return true;\n     *   }\n     * }\n     *\n     * var object = { 'greeting': 'hello' };\n     * var source = { 'greeting': 'hi' };\n     *\n     * _.isMatchWith(object, source, customizer);\n     * // => true\n     */\n    function isMatchWith(object, source, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return baseIsMatch(object, source, getMatchData(source), customizer);\n    }\n\n    /**\n     * Checks if `value` is `NaN`.\n     *\n     * **Note:** This method is based on\n     * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n     * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n     * `undefined` and other non-number values.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n     * @example\n     *\n     * _.isNaN(NaN);\n     * // => true\n     *\n     * _.isNaN(new Number(NaN));\n     * // => true\n     *\n     * isNaN(undefined);\n     * // => true\n     *\n     * _.isNaN(undefined);\n     * // => false\n     */\n    function isNaN(value) {\n      // An `NaN` primitive is the only value that is not equal to itself.\n      // Perform the `toStringTag` check first to avoid errors with some\n      // ActiveX objects in IE.\n      return isNumber(value) && value != +value;\n    }\n\n    /**\n     * Checks if `value` is a pristine native function.\n     *\n     * **Note:** This method can't reliably detect native functions in the presence\n     * of the core-js package because core-js circumvents this kind of detection.\n     * Despite multiple requests, the core-js maintainer has made it clear: any\n     * attempt to fix the detection will be obstructed. As a result, we're left\n     * with little choice but to throw an error. Unfortunately, this also affects\n     * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n     * which rely on core-js.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a native function,\n     *  else `false`.\n     * @example\n     *\n     * _.isNative(Array.prototype.push);\n     * // => true\n     *\n     * _.isNative(_);\n     * // => false\n     */\n    function isNative(value) {\n      if (isMaskable(value)) {\n        throw new Error(CORE_ERROR_TEXT);\n      }\n      return baseIsNative(value);\n    }\n\n    /**\n     * Checks if `value` is `null`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n     * @example\n     *\n     * _.isNull(null);\n     * // => true\n     *\n     * _.isNull(void 0);\n     * // => false\n     */\n    function isNull(value) {\n      return value === null;\n    }\n\n    /**\n     * Checks if `value` is `null` or `undefined`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n     * @example\n     *\n     * _.isNil(null);\n     * // => true\n     *\n     * _.isNil(void 0);\n     * // => true\n     *\n     * _.isNil(NaN);\n     * // => false\n     */\n    function isNil(value) {\n      return value == null;\n    }\n\n    /**\n     * Checks if `value` is classified as a `Number` primitive or object.\n     *\n     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n     * classified as numbers, use the `_.isFinite` method.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n     * @example\n     *\n     * _.isNumber(3);\n     * // => true\n     *\n     * _.isNumber(Number.MIN_VALUE);\n     * // => true\n     *\n     * _.isNumber(Infinity);\n     * // => true\n     *\n     * _.isNumber('3');\n     * // => false\n     */\n    function isNumber(value) {\n      return typeof value == 'number' ||\n        (isObjectLike(value) && baseGetTag(value) == numberTag);\n    }\n\n    /**\n     * Checks if `value` is a plain object, that is, an object created by the\n     * `Object` constructor or one with a `[[Prototype]]` of `null`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.8.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     * }\n     *\n     * _.isPlainObject(new Foo);\n     * // => false\n     *\n     * _.isPlainObject([1, 2, 3]);\n     * // => false\n     *\n     * _.isPlainObject({ 'x': 0, 'y': 0 });\n     * // => true\n     *\n     * _.isPlainObject(Object.create(null));\n     * // => true\n     */\n    function isPlainObject(value) {\n      if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n        return false;\n      }\n      var proto = getPrototype(value);\n      if (proto === null) {\n        return true;\n      }\n      var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n      return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n        funcToString.call(Ctor) == objectCtorString;\n    }\n\n    /**\n     * Checks if `value` is classified as a `RegExp` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n     * @example\n     *\n     * _.isRegExp(/abc/);\n     * // => true\n     *\n     * _.isRegExp('/abc/');\n     * // => false\n     */\n    var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n\n    /**\n     * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n     * double precision number which isn't the result of a rounded unsafe integer.\n     *\n     * **Note:** This method is based on\n     * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n     * @example\n     *\n     * _.isSafeInteger(3);\n     * // => true\n     *\n     * _.isSafeInteger(Number.MIN_VALUE);\n     * // => false\n     *\n     * _.isSafeInteger(Infinity);\n     * // => false\n     *\n     * _.isSafeInteger('3');\n     * // => false\n     */\n    function isSafeInteger(value) {\n      return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n    }\n\n    /**\n     * Checks if `value` is classified as a `Set` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n     * @example\n     *\n     * _.isSet(new Set);\n     * // => true\n     *\n     * _.isSet(new WeakSet);\n     * // => false\n     */\n    var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\n    /**\n     * Checks if `value` is classified as a `String` primitive or object.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n     * @example\n     *\n     * _.isString('abc');\n     * // => true\n     *\n     * _.isString(1);\n     * // => false\n     */\n    function isString(value) {\n      return typeof value == 'string' ||\n        (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n    }\n\n    /**\n     * Checks if `value` is classified as a `Symbol` primitive or object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n     * @example\n     *\n     * _.isSymbol(Symbol.iterator);\n     * // => true\n     *\n     * _.isSymbol('abc');\n     * // => false\n     */\n    function isSymbol(value) {\n      return typeof value == 'symbol' ||\n        (isObjectLike(value) && baseGetTag(value) == symbolTag);\n    }\n\n    /**\n     * Checks if `value` is classified as a typed array.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n     * @example\n     *\n     * _.isTypedArray(new Uint8Array);\n     * // => true\n     *\n     * _.isTypedArray([]);\n     * // => false\n     */\n    var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n    /**\n     * Checks if `value` is `undefined`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n     * @example\n     *\n     * _.isUndefined(void 0);\n     * // => true\n     *\n     * _.isUndefined(null);\n     * // => false\n     */\n    function isUndefined(value) {\n      return value === undefined;\n    }\n\n    /**\n     * Checks if `value` is classified as a `WeakMap` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n     * @example\n     *\n     * _.isWeakMap(new WeakMap);\n     * // => true\n     *\n     * _.isWeakMap(new Map);\n     * // => false\n     */\n    function isWeakMap(value) {\n      return isObjectLike(value) && getTag(value) == weakMapTag;\n    }\n\n    /**\n     * Checks if `value` is classified as a `WeakSet` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n     * @example\n     *\n     * _.isWeakSet(new WeakSet);\n     * // => true\n     *\n     * _.isWeakSet(new Set);\n     * // => false\n     */\n    function isWeakSet(value) {\n      return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n    }\n\n    /**\n     * Checks if `value` is less than `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is less than `other`,\n     *  else `false`.\n     * @see _.gt\n     * @example\n     *\n     * _.lt(1, 3);\n     * // => true\n     *\n     * _.lt(3, 3);\n     * // => false\n     *\n     * _.lt(3, 1);\n     * // => false\n     */\n    var lt = createRelationalOperation(baseLt);\n\n    /**\n     * Checks if `value` is less than or equal to `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is less than or equal to\n     *  `other`, else `false`.\n     * @see _.gte\n     * @example\n     *\n     * _.lte(1, 3);\n     * // => true\n     *\n     * _.lte(3, 3);\n     * // => true\n     *\n     * _.lte(3, 1);\n     * // => false\n     */\n    var lte = createRelationalOperation(function(value, other) {\n      return value <= other;\n    });\n\n    /**\n     * Converts `value` to an array.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {Array} Returns the converted array.\n     * @example\n     *\n     * _.toArray({ 'a': 1, 'b': 2 });\n     * // => [1, 2]\n     *\n     * _.toArray('abc');\n     * // => ['a', 'b', 'c']\n     *\n     * _.toArray(1);\n     * // => []\n     *\n     * _.toArray(null);\n     * // => []\n     */\n    function toArray(value) {\n      if (!value) {\n        return [];\n      }\n      if (isArrayLike(value)) {\n        return isString(value) ? stringToArray(value) : copyArray(value);\n      }\n      if (symIterator && value[symIterator]) {\n        return iteratorToArray(value[symIterator]());\n      }\n      var tag = getTag(value),\n          func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);\n\n      return func(value);\n    }\n\n    /**\n     * Converts `value` to a finite number.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.12.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted number.\n     * @example\n     *\n     * _.toFinite(3.2);\n     * // => 3.2\n     *\n     * _.toFinite(Number.MIN_VALUE);\n     * // => 5e-324\n     *\n     * _.toFinite(Infinity);\n     * // => 1.7976931348623157e+308\n     *\n     * _.toFinite('3.2');\n     * // => 3.2\n     */\n    function toFinite(value) {\n      if (!value) {\n        return value === 0 ? value : 0;\n      }\n      value = toNumber(value);\n      if (value === INFINITY || value === -INFINITY) {\n        var sign = (value < 0 ? -1 : 1);\n        return sign * MAX_INTEGER;\n      }\n      return value === value ? value : 0;\n    }\n\n    /**\n     * Converts `value` to an integer.\n     *\n     * **Note:** This method is loosely based on\n     * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.toInteger(3.2);\n     * // => 3\n     *\n     * _.toInteger(Number.MIN_VALUE);\n     * // => 0\n     *\n     * _.toInteger(Infinity);\n     * // => 1.7976931348623157e+308\n     *\n     * _.toInteger('3.2');\n     * // => 3\n     */\n    function toInteger(value) {\n      var result = toFinite(value),\n          remainder = result % 1;\n\n      return result === result ? (remainder ? result - remainder : result) : 0;\n    }\n\n    /**\n     * Converts `value` to an integer suitable for use as the length of an\n     * array-like object.\n     *\n     * **Note:** This method is based on\n     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.toLength(3.2);\n     * // => 3\n     *\n     * _.toLength(Number.MIN_VALUE);\n     * // => 0\n     *\n     * _.toLength(Infinity);\n     * // => 4294967295\n     *\n     * _.toLength('3.2');\n     * // => 3\n     */\n    function toLength(value) {\n      return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n    }\n\n    /**\n     * Converts `value` to a number.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to process.\n     * @returns {number} Returns the number.\n     * @example\n     *\n     * _.toNumber(3.2);\n     * // => 3.2\n     *\n     * _.toNumber(Number.MIN_VALUE);\n     * // => 5e-324\n     *\n     * _.toNumber(Infinity);\n     * // => Infinity\n     *\n     * _.toNumber('3.2');\n     * // => 3.2\n     */\n    function toNumber(value) {\n      if (typeof value == 'number') {\n        return value;\n      }\n      if (isSymbol(value)) {\n        return NAN;\n      }\n      if (isObject(value)) {\n        var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n        value = isObject(other) ? (other + '') : other;\n      }\n      if (typeof value != 'string') {\n        return value === 0 ? value : +value;\n      }\n      value = baseTrim(value);\n      var isBinary = reIsBinary.test(value);\n      return (isBinary || reIsOctal.test(value))\n        ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n        : (reIsBadHex.test(value) ? NAN : +value);\n    }\n\n    /**\n     * Converts `value` to a plain object flattening inherited enumerable string\n     * keyed properties of `value` to own properties of the plain object.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {Object} Returns the converted plain object.\n     * @example\n     *\n     * function Foo() {\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.assign({ 'a': 1 }, new Foo);\n     * // => { 'a': 1, 'b': 2 }\n     *\n     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n     * // => { 'a': 1, 'b': 2, 'c': 3 }\n     */\n    function toPlainObject(value) {\n      return copyObject(value, keysIn(value));\n    }\n\n    /**\n     * Converts `value` to a safe integer. A safe integer can be compared and\n     * represented correctly.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.toSafeInteger(3.2);\n     * // => 3\n     *\n     * _.toSafeInteger(Number.MIN_VALUE);\n     * // => 0\n     *\n     * _.toSafeInteger(Infinity);\n     * // => 9007199254740991\n     *\n     * _.toSafeInteger('3.2');\n     * // => 3\n     */\n    function toSafeInteger(value) {\n      return value\n        ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)\n        : (value === 0 ? value : 0);\n    }\n\n    /**\n     * Converts `value` to a string. An empty string is returned for `null`\n     * and `undefined` values. The sign of `-0` is preserved.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {string} Returns the converted string.\n     * @example\n     *\n     * _.toString(null);\n     * // => ''\n     *\n     * _.toString(-0);\n     * // => '-0'\n     *\n     * _.toString([1, 2, 3]);\n     * // => '1,2,3'\n     */\n    function toString(value) {\n      return value == null ? '' : baseToString(value);\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Assigns own enumerable string keyed properties of source objects to the\n     * destination object. Source objects are applied from left to right.\n     * Subsequent sources overwrite property assignments of previous sources.\n     *\n     * **Note:** This method mutates `object` and is loosely based on\n     * [`Object.assign`](https://mdn.io/Object/assign).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.10.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.assignIn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     * }\n     *\n     * function Bar() {\n     *   this.c = 3;\n     * }\n     *\n     * Foo.prototype.b = 2;\n     * Bar.prototype.d = 4;\n     *\n     * _.assign({ 'a': 0 }, new Foo, new Bar);\n     * // => { 'a': 1, 'c': 3 }\n     */\n    var assign = createAssigner(function(object, source) {\n      if (isPrototype(source) || isArrayLike(source)) {\n        copyObject(source, keys(source), object);\n        return;\n      }\n      for (var key in source) {\n        if (hasOwnProperty.call(source, key)) {\n          assignValue(object, key, source[key]);\n        }\n      }\n    });\n\n    /**\n     * This method is like `_.assign` except that it iterates over own and\n     * inherited source properties.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias extend\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.assign\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     * }\n     *\n     * function Bar() {\n     *   this.c = 3;\n     * }\n     *\n     * Foo.prototype.b = 2;\n     * Bar.prototype.d = 4;\n     *\n     * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n     * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n     */\n    var assignIn = createAssigner(function(object, source) {\n      copyObject(source, keysIn(source), object);\n    });\n\n    /**\n     * This method is like `_.assignIn` except that it accepts `customizer`\n     * which is invoked to produce the assigned values. If `customizer` returns\n     * `undefined`, assignment is handled by the method instead. The `customizer`\n     * is invoked with five arguments: (objValue, srcValue, key, object, source).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias extendWith\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} sources The source objects.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @see _.assignWith\n     * @example\n     *\n     * function customizer(objValue, srcValue) {\n     *   return _.isUndefined(objValue) ? srcValue : objValue;\n     * }\n     *\n     * var defaults = _.partialRight(_.assignInWith, customizer);\n     *\n     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n     * // => { 'a': 1, 'b': 2 }\n     */\n    var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {\n      copyObject(source, keysIn(source), object, customizer);\n    });\n\n    /**\n     * This method is like `_.assign` except that it accepts `customizer`\n     * which is invoked to produce the assigned values. If `customizer` returns\n     * `undefined`, assignment is handled by the method instead. The `customizer`\n     * is invoked with five arguments: (objValue, srcValue, key, object, source).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} sources The source objects.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @see _.assignInWith\n     * @example\n     *\n     * function customizer(objValue, srcValue) {\n     *   return _.isUndefined(objValue) ? srcValue : objValue;\n     * }\n     *\n     * var defaults = _.partialRight(_.assignWith, customizer);\n     *\n     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n     * // => { 'a': 1, 'b': 2 }\n     */\n    var assignWith = createAssigner(function(object, source, srcIndex, customizer) {\n      copyObject(source, keys(source), object, customizer);\n    });\n\n    /**\n     * Creates an array of values corresponding to `paths` of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.0.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {...(string|string[])} [paths] The property paths to pick.\n     * @returns {Array} Returns the picked values.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n     *\n     * _.at(object, ['a[0].b.c', 'a[1]']);\n     * // => [3, 4]\n     */\n    var at = flatRest(baseAt);\n\n    /**\n     * Creates an object that inherits from the `prototype` object. If a\n     * `properties` object is given, its own enumerable string keyed properties\n     * are assigned to the created object.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.3.0\n     * @category Object\n     * @param {Object} prototype The object to inherit from.\n     * @param {Object} [properties] The properties to assign to the object.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * function Shape() {\n     *   this.x = 0;\n     *   this.y = 0;\n     * }\n     *\n     * function Circle() {\n     *   Shape.call(this);\n     * }\n     *\n     * Circle.prototype = _.create(Shape.prototype, {\n     *   'constructor': Circle\n     * });\n     *\n     * var circle = new Circle;\n     * circle instanceof Circle;\n     * // => true\n     *\n     * circle instanceof Shape;\n     * // => true\n     */\n    function create(prototype, properties) {\n      var result = baseCreate(prototype);\n      return properties == null ? result : baseAssign(result, properties);\n    }\n\n    /**\n     * Assigns own and inherited enumerable string keyed properties of source\n     * objects to the destination object for all destination properties that\n     * resolve to `undefined`. Source objects are applied from left to right.\n     * Once a property is set, additional values of the same property are ignored.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.defaultsDeep\n     * @example\n     *\n     * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n     * // => { 'a': 1, 'b': 2 }\n     */\n    var defaults = baseRest(function(object, sources) {\n      object = Object(object);\n\n      var index = -1;\n      var length = sources.length;\n      var guard = length > 2 ? sources[2] : undefined;\n\n      if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n        length = 1;\n      }\n\n      while (++index < length) {\n        var source = sources[index];\n        var props = keysIn(source);\n        var propsIndex = -1;\n        var propsLength = props.length;\n\n        while (++propsIndex < propsLength) {\n          var key = props[propsIndex];\n          var value = object[key];\n\n          if (value === undefined ||\n              (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n            object[key] = source[key];\n          }\n        }\n      }\n\n      return object;\n    });\n\n    /**\n     * This method is like `_.defaults` except that it recursively assigns\n     * default properties.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.defaults\n     * @example\n     *\n     * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n     * // => { 'a': { 'b': 2, 'c': 3 } }\n     */\n    var defaultsDeep = baseRest(function(args) {\n      args.push(undefined, customDefaultsMerge);\n      return apply(mergeWith, undefined, args);\n    });\n\n    /**\n     * This method is like `_.find` except that it returns the key of the first\n     * element `predicate` returns truthy for instead of the element itself.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.1.0\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {string|undefined} Returns the key of the matched element,\n     *  else `undefined`.\n     * @example\n     *\n     * var users = {\n     *   'barney':  { 'age': 36, 'active': true },\n     *   'fred':    { 'age': 40, 'active': false },\n     *   'pebbles': { 'age': 1,  'active': true }\n     * };\n     *\n     * _.findKey(users, function(o) { return o.age < 40; });\n     * // => 'barney' (iteration order is not guaranteed)\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findKey(users, { 'age': 1, 'active': true });\n     * // => 'pebbles'\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findKey(users, ['active', false]);\n     * // => 'fred'\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findKey(users, 'active');\n     * // => 'barney'\n     */\n    function findKey(object, predicate) {\n      return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n    }\n\n    /**\n     * This method is like `_.findKey` except that it iterates over elements of\n     * a collection in the opposite order.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {string|undefined} Returns the key of the matched element,\n     *  else `undefined`.\n     * @example\n     *\n     * var users = {\n     *   'barney':  { 'age': 36, 'active': true },\n     *   'fred':    { 'age': 40, 'active': false },\n     *   'pebbles': { 'age': 1,  'active': true }\n     * };\n     *\n     * _.findLastKey(users, function(o) { return o.age < 40; });\n     * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findLastKey(users, { 'age': 36, 'active': true });\n     * // => 'barney'\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findLastKey(users, ['active', false]);\n     * // => 'fred'\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findLastKey(users, 'active');\n     * // => 'pebbles'\n     */\n    function findLastKey(object, predicate) {\n      return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n    }\n\n    /**\n     * Iterates over own and inherited enumerable string keyed properties of an\n     * object and invokes `iteratee` for each property. The iteratee is invoked\n     * with three arguments: (value, key, object). Iteratee functions may exit\n     * iteration early by explicitly returning `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.3.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forInRight\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forIn(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n     */\n    function forIn(object, iteratee) {\n      return object == null\n        ? object\n        : baseFor(object, getIteratee(iteratee, 3), keysIn);\n    }\n\n    /**\n     * This method is like `_.forIn` except that it iterates over properties of\n     * `object` in the opposite order.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forIn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forInRight(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n     */\n    function forInRight(object, iteratee) {\n      return object == null\n        ? object\n        : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n    }\n\n    /**\n     * Iterates over own enumerable string keyed properties of an object and\n     * invokes `iteratee` for each property. The iteratee is invoked with three\n     * arguments: (value, key, object). Iteratee functions may exit iteration\n     * early by explicitly returning `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.3.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forOwnRight\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forOwn(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n     */\n    function forOwn(object, iteratee) {\n      return object && baseForOwn(object, getIteratee(iteratee, 3));\n    }\n\n    /**\n     * This method is like `_.forOwn` except that it iterates over properties of\n     * `object` in the opposite order.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forOwn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forOwnRight(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n     */\n    function forOwnRight(object, iteratee) {\n      return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n    }\n\n    /**\n     * Creates an array of function property names from own enumerable properties\n     * of `object`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @returns {Array} Returns the function names.\n     * @see _.functionsIn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = _.constant('a');\n     *   this.b = _.constant('b');\n     * }\n     *\n     * Foo.prototype.c = _.constant('c');\n     *\n     * _.functions(new Foo);\n     * // => ['a', 'b']\n     */\n    function functions(object) {\n      return object == null ? [] : baseFunctions(object, keys(object));\n    }\n\n    /**\n     * Creates an array of function property names from own and inherited\n     * enumerable properties of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @returns {Array} Returns the function names.\n     * @see _.functions\n     * @example\n     *\n     * function Foo() {\n     *   this.a = _.constant('a');\n     *   this.b = _.constant('b');\n     * }\n     *\n     * Foo.prototype.c = _.constant('c');\n     *\n     * _.functionsIn(new Foo);\n     * // => ['a', 'b', 'c']\n     */\n    function functionsIn(object) {\n      return object == null ? [] : baseFunctions(object, keysIn(object));\n    }\n\n    /**\n     * Gets the value at `path` of `object`. If the resolved value is\n     * `undefined`, the `defaultValue` is returned in its place.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the property to get.\n     * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n     * @returns {*} Returns the resolved value.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n     *\n     * _.get(object, 'a[0].b.c');\n     * // => 3\n     *\n     * _.get(object, ['a', '0', 'b', 'c']);\n     * // => 3\n     *\n     * _.get(object, 'a.b.c', 'default');\n     * // => 'default'\n     */\n    function get(object, path, defaultValue) {\n      var result = object == null ? undefined : baseGet(object, path);\n      return result === undefined ? defaultValue : result;\n    }\n\n    /**\n     * Checks if `path` is a direct property of `object`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path to check.\n     * @returns {boolean} Returns `true` if `path` exists, else `false`.\n     * @example\n     *\n     * var object = { 'a': { 'b': 2 } };\n     * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n     *\n     * _.has(object, 'a');\n     * // => true\n     *\n     * _.has(object, 'a.b');\n     * // => true\n     *\n     * _.has(object, ['a', 'b']);\n     * // => true\n     *\n     * _.has(other, 'a');\n     * // => false\n     */\n    function has(object, path) {\n      return object != null && hasPath(object, path, baseHas);\n    }\n\n    /**\n     * Checks if `path` is a direct or inherited property of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path to check.\n     * @returns {boolean} Returns `true` if `path` exists, else `false`.\n     * @example\n     *\n     * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n     *\n     * _.hasIn(object, 'a');\n     * // => true\n     *\n     * _.hasIn(object, 'a.b');\n     * // => true\n     *\n     * _.hasIn(object, ['a', 'b']);\n     * // => true\n     *\n     * _.hasIn(object, 'b');\n     * // => false\n     */\n    function hasIn(object, path) {\n      return object != null && hasPath(object, path, baseHasIn);\n    }\n\n    /**\n     * Creates an object composed of the inverted keys and values of `object`.\n     * If `object` contains duplicate values, subsequent values overwrite\n     * property assignments of previous values.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.7.0\n     * @category Object\n     * @param {Object} object The object to invert.\n     * @returns {Object} Returns the new inverted object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2, 'c': 1 };\n     *\n     * _.invert(object);\n     * // => { '1': 'c', '2': 'b' }\n     */\n    var invert = createInverter(function(result, value, key) {\n      if (value != null &&\n          typeof value.toString != 'function') {\n        value = nativeObjectToString.call(value);\n      }\n\n      result[value] = key;\n    }, constant(identity));\n\n    /**\n     * This method is like `_.invert` except that the inverted object is generated\n     * from the results of running each element of `object` thru `iteratee`. The\n     * corresponding inverted value of each inverted key is an array of keys\n     * responsible for generating the inverted value. The iteratee is invoked\n     * with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.1.0\n     * @category Object\n     * @param {Object} object The object to invert.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Object} Returns the new inverted object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2, 'c': 1 };\n     *\n     * _.invertBy(object);\n     * // => { '1': ['a', 'c'], '2': ['b'] }\n     *\n     * _.invertBy(object, function(value) {\n     *   return 'group' + value;\n     * });\n     * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n     */\n    var invertBy = createInverter(function(result, value, key) {\n      if (value != null &&\n          typeof value.toString != 'function') {\n        value = nativeObjectToString.call(value);\n      }\n\n      if (hasOwnProperty.call(result, value)) {\n        result[value].push(key);\n      } else {\n        result[value] = [key];\n      }\n    }, getIteratee);\n\n    /**\n     * Invokes the method at `path` of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the method to invoke.\n     * @param {...*} [args] The arguments to invoke the method with.\n     * @returns {*} Returns the result of the invoked method.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n     *\n     * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n     * // => [2, 3]\n     */\n    var invoke = baseRest(baseInvoke);\n\n    /**\n     * Creates an array of the own enumerable property names of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects. See the\n     * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n     * for more details.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.keys(new Foo);\n     * // => ['a', 'b'] (iteration order is not guaranteed)\n     *\n     * _.keys('hi');\n     * // => ['0', '1']\n     */\n    function keys(object) {\n      return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n    }\n\n    /**\n     * Creates an array of the own and inherited enumerable property names of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.keysIn(new Foo);\n     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n     */\n    function keysIn(object) {\n      return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n    }\n\n    /**\n     * The opposite of `_.mapValues`; this method creates an object with the\n     * same values as `object` and keys generated by running each own enumerable\n     * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n     * with three arguments: (value, key, object).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.8.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns the new mapped object.\n     * @see _.mapValues\n     * @example\n     *\n     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n     *   return key + value;\n     * });\n     * // => { 'a1': 1, 'b2': 2 }\n     */\n    function mapKeys(object, iteratee) {\n      var result = {};\n      iteratee = getIteratee(iteratee, 3);\n\n      baseForOwn(object, function(value, key, object) {\n        baseAssignValue(result, iteratee(value, key, object), value);\n      });\n      return result;\n    }\n\n    /**\n     * Creates an object with the same keys as `object` and values generated\n     * by running each own enumerable string keyed property of `object` thru\n     * `iteratee`. The iteratee is invoked with three arguments:\n     * (value, key, object).\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns the new mapped object.\n     * @see _.mapKeys\n     * @example\n     *\n     * var users = {\n     *   'fred':    { 'user': 'fred',    'age': 40 },\n     *   'pebbles': { 'user': 'pebbles', 'age': 1 }\n     * };\n     *\n     * _.mapValues(users, function(o) { return o.age; });\n     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.mapValues(users, 'age');\n     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n     */\n    function mapValues(object, iteratee) {\n      var result = {};\n      iteratee = getIteratee(iteratee, 3);\n\n      baseForOwn(object, function(value, key, object) {\n        baseAssignValue(result, key, iteratee(value, key, object));\n      });\n      return result;\n    }\n\n    /**\n     * This method is like `_.assign` except that it recursively merges own and\n     * inherited enumerable string keyed properties of source objects into the\n     * destination object. Source properties that resolve to `undefined` are\n     * skipped if a destination value exists. Array and plain object properties\n     * are merged recursively. Other objects and value types are overridden by\n     * assignment. Source objects are applied from left to right. Subsequent\n     * sources overwrite property assignments of previous sources.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.5.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = {\n     *   'a': [{ 'b': 2 }, { 'd': 4 }]\n     * };\n     *\n     * var other = {\n     *   'a': [{ 'c': 3 }, { 'e': 5 }]\n     * };\n     *\n     * _.merge(object, other);\n     * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n     */\n    var merge = createAssigner(function(object, source, srcIndex) {\n      baseMerge(object, source, srcIndex);\n    });\n\n    /**\n     * This method is like `_.merge` except that it accepts `customizer` which\n     * is invoked to produce the merged values of the destination and source\n     * properties. If `customizer` returns `undefined`, merging is handled by the\n     * method instead. The `customizer` is invoked with six arguments:\n     * (objValue, srcValue, key, object, source, stack).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} sources The source objects.\n     * @param {Function} customizer The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * function customizer(objValue, srcValue) {\n     *   if (_.isArray(objValue)) {\n     *     return objValue.concat(srcValue);\n     *   }\n     * }\n     *\n     * var object = { 'a': [1], 'b': [2] };\n     * var other = { 'a': [3], 'b': [4] };\n     *\n     * _.mergeWith(object, other, customizer);\n     * // => { 'a': [1, 3], 'b': [2, 4] }\n     */\n    var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {\n      baseMerge(object, source, srcIndex, customizer);\n    });\n\n    /**\n     * The opposite of `_.pick`; this method creates an object composed of the\n     * own and inherited enumerable property paths of `object` that are not omitted.\n     *\n     * **Note:** This method is considerably slower than `_.pick`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {...(string|string[])} [paths] The property paths to omit.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.omit(object, ['a', 'c']);\n     * // => { 'b': '2' }\n     */\n    var omit = flatRest(function(object, paths) {\n      var result = {};\n      if (object == null) {\n        return result;\n      }\n      var isDeep = false;\n      paths = arrayMap(paths, function(path) {\n        path = castPath(path, object);\n        isDeep || (isDeep = path.length > 1);\n        return path;\n      });\n      copyObject(object, getAllKeysIn(object), result);\n      if (isDeep) {\n        result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n      }\n      var length = paths.length;\n      while (length--) {\n        baseUnset(result, paths[length]);\n      }\n      return result;\n    });\n\n    /**\n     * The opposite of `_.pickBy`; this method creates an object composed of\n     * the own and inherited enumerable string keyed properties of `object` that\n     * `predicate` doesn't return truthy for. The predicate is invoked with two\n     * arguments: (value, key).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {Function} [predicate=_.identity] The function invoked per property.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.omitBy(object, _.isNumber);\n     * // => { 'b': '2' }\n     */\n    function omitBy(object, predicate) {\n      return pickBy(object, negate(getIteratee(predicate)));\n    }\n\n    /**\n     * Creates an object composed of the picked `object` properties.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {...(string|string[])} [paths] The property paths to pick.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.pick(object, ['a', 'c']);\n     * // => { 'a': 1, 'c': 3 }\n     */\n    var pick = flatRest(function(object, paths) {\n      return object == null ? {} : basePick(object, paths);\n    });\n\n    /**\n     * Creates an object composed of the `object` properties `predicate` returns\n     * truthy for. The predicate is invoked with two arguments: (value, key).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {Function} [predicate=_.identity] The function invoked per property.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.pickBy(object, _.isNumber);\n     * // => { 'a': 1, 'c': 3 }\n     */\n    function pickBy(object, predicate) {\n      if (object == null) {\n        return {};\n      }\n      var props = arrayMap(getAllKeysIn(object), function(prop) {\n        return [prop];\n      });\n      predicate = getIteratee(predicate);\n      return basePickBy(object, props, function(value, path) {\n        return predicate(value, path[0]);\n      });\n    }\n\n    /**\n     * This method is like `_.get` except that if the resolved value is a\n     * function it's invoked with the `this` binding of its parent object and\n     * its result is returned.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the property to resolve.\n     * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n     * @returns {*} Returns the resolved value.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n     *\n     * _.result(object, 'a[0].b.c1');\n     * // => 3\n     *\n     * _.result(object, 'a[0].b.c2');\n     * // => 4\n     *\n     * _.result(object, 'a[0].b.c3', 'default');\n     * // => 'default'\n     *\n     * _.result(object, 'a[0].b.c3', _.constant('default'));\n     * // => 'default'\n     */\n    function result(object, path, defaultValue) {\n      path = castPath(path, object);\n\n      var index = -1,\n          length = path.length;\n\n      // Ensure the loop is entered when path is empty.\n      if (!length) {\n        length = 1;\n        object = undefined;\n      }\n      while (++index < length) {\n        var value = object == null ? undefined : object[toKey(path[index])];\n        if (value === undefined) {\n          index = length;\n          value = defaultValue;\n        }\n        object = isFunction(value) ? value.call(object) : value;\n      }\n      return object;\n    }\n\n    /**\n     * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n     * it's created. Arrays are created for missing index properties while objects\n     * are created for all other missing properties. Use `_.setWith` to customize\n     * `path` creation.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n     *\n     * _.set(object, 'a[0].b.c', 4);\n     * console.log(object.a[0].b.c);\n     * // => 4\n     *\n     * _.set(object, ['x', '0', 'y', 'z'], 5);\n     * console.log(object.x[0].y.z);\n     * // => 5\n     */\n    function set(object, path, value) {\n      return object == null ? object : baseSet(object, path, value);\n    }\n\n    /**\n     * This method is like `_.set` except that it accepts `customizer` which is\n     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`\n     * path creation is handled by the method instead. The `customizer` is invoked\n     * with three arguments: (nsValue, key, nsObject).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {*} value The value to set.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = {};\n     *\n     * _.setWith(object, '[0][1]', 'a', Object);\n     * // => { '0': { '1': 'a' } }\n     */\n    function setWith(object, path, value, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return object == null ? object : baseSet(object, path, value, customizer);\n    }\n\n    /**\n     * Creates an array of own enumerable string keyed-value pairs for `object`\n     * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n     * entries are returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias entries\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the key-value pairs.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.toPairs(new Foo);\n     * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n     */\n    var toPairs = createToPairs(keys);\n\n    /**\n     * Creates an array of own and inherited enumerable string keyed-value pairs\n     * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n     * or set, its entries are returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias entriesIn\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the key-value pairs.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.toPairsIn(new Foo);\n     * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n     */\n    var toPairsIn = createToPairs(keysIn);\n\n    /**\n     * An alternative to `_.reduce`; this method transforms `object` to a new\n     * `accumulator` object which is the result of running each of its own\n     * enumerable string keyed properties thru `iteratee`, with each invocation\n     * potentially mutating the `accumulator` object. If `accumulator` is not\n     * provided, a new object with the same `[[Prototype]]` will be used. The\n     * iteratee is invoked with four arguments: (accumulator, value, key, object).\n     * Iteratee functions may exit iteration early by explicitly returning `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.3.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {*} [accumulator] The custom accumulator value.\n     * @returns {*} Returns the accumulated value.\n     * @example\n     *\n     * _.transform([2, 3, 4], function(result, n) {\n     *   result.push(n *= n);\n     *   return n % 2 == 0;\n     * }, []);\n     * // => [4, 9]\n     *\n     * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n     *   (result[value] || (result[value] = [])).push(key);\n     * }, {});\n     * // => { '1': ['a', 'c'], '2': ['b'] }\n     */\n    function transform(object, iteratee, accumulator) {\n      var isArr = isArray(object),\n          isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n\n      iteratee = getIteratee(iteratee, 4);\n      if (accumulator == null) {\n        var Ctor = object && object.constructor;\n        if (isArrLike) {\n          accumulator = isArr ? new Ctor : [];\n        }\n        else if (isObject(object)) {\n          accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n        }\n        else {\n          accumulator = {};\n        }\n      }\n      (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {\n        return iteratee(accumulator, value, index, object);\n      });\n      return accumulator;\n    }\n\n    /**\n     * Removes the property at `path` of `object`.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to unset.\n     * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n     * _.unset(object, 'a[0].b.c');\n     * // => true\n     *\n     * console.log(object);\n     * // => { 'a': [{ 'b': {} }] };\n     *\n     * _.unset(object, ['a', '0', 'b', 'c']);\n     * // => true\n     *\n     * console.log(object);\n     * // => { 'a': [{ 'b': {} }] };\n     */\n    function unset(object, path) {\n      return object == null ? true : baseUnset(object, path);\n    }\n\n    /**\n     * This method is like `_.set` except that accepts `updater` to produce the\n     * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n     * is invoked with one argument: (value).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.6.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {Function} updater The function to produce the updated value.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n     *\n     * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n     * console.log(object.a[0].b.c);\n     * // => 9\n     *\n     * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n     * console.log(object.x[0].y.z);\n     * // => 0\n     */\n    function update(object, path, updater) {\n      return object == null ? object : baseUpdate(object, path, castFunction(updater));\n    }\n\n    /**\n     * This method is like `_.update` except that it accepts `customizer` which is\n     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`\n     * path creation is handled by the method instead. The `customizer` is invoked\n     * with three arguments: (nsValue, key, nsObject).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.6.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {Function} updater The function to produce the updated value.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = {};\n     *\n     * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n     * // => { '0': { '1': 'a' } }\n     */\n    function updateWith(object, path, updater, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n    }\n\n    /**\n     * Creates an array of the own enumerable string keyed property values of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property values.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.values(new Foo);\n     * // => [1, 2] (iteration order is not guaranteed)\n     *\n     * _.values('hi');\n     * // => ['h', 'i']\n     */\n    function values(object) {\n      return object == null ? [] : baseValues(object, keys(object));\n    }\n\n    /**\n     * Creates an array of the own and inherited enumerable string keyed property\n     * values of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property values.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.valuesIn(new Foo);\n     * // => [1, 2, 3] (iteration order is not guaranteed)\n     */\n    function valuesIn(object) {\n      return object == null ? [] : baseValues(object, keysIn(object));\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Clamps `number` within the inclusive `lower` and `upper` bounds.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Number\n     * @param {number} number The number to clamp.\n     * @param {number} [lower] The lower bound.\n     * @param {number} upper The upper bound.\n     * @returns {number} Returns the clamped number.\n     * @example\n     *\n     * _.clamp(-10, -5, 5);\n     * // => -5\n     *\n     * _.clamp(10, -5, 5);\n     * // => 5\n     */\n    function clamp(number, lower, upper) {\n      if (upper === undefined) {\n        upper = lower;\n        lower = undefined;\n      }\n      if (upper !== undefined) {\n        upper = toNumber(upper);\n        upper = upper === upper ? upper : 0;\n      }\n      if (lower !== undefined) {\n        lower = toNumber(lower);\n        lower = lower === lower ? lower : 0;\n      }\n      return baseClamp(toNumber(number), lower, upper);\n    }\n\n    /**\n     * Checks if `n` is between `start` and up to, but not including, `end`. If\n     * `end` is not specified, it's set to `start` with `start` then set to `0`.\n     * If `start` is greater than `end` the params are swapped to support\n     * negative ranges.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.3.0\n     * @category Number\n     * @param {number} number The number to check.\n     * @param {number} [start=0] The start of the range.\n     * @param {number} end The end of the range.\n     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n     * @see _.range, _.rangeRight\n     * @example\n     *\n     * _.inRange(3, 2, 4);\n     * // => true\n     *\n     * _.inRange(4, 8);\n     * // => true\n     *\n     * _.inRange(4, 2);\n     * // => false\n     *\n     * _.inRange(2, 2);\n     * // => false\n     *\n     * _.inRange(1.2, 2);\n     * // => true\n     *\n     * _.inRange(5.2, 4);\n     * // => false\n     *\n     * _.inRange(-3, -2, -6);\n     * // => true\n     */\n    function inRange(number, start, end) {\n      start = toFinite(start);\n      if (end === undefined) {\n        end = start;\n        start = 0;\n      } else {\n        end = toFinite(end);\n      }\n      number = toNumber(number);\n      return baseInRange(number, start, end);\n    }\n\n    /**\n     * Produces a random number between the inclusive `lower` and `upper` bounds.\n     * If only one argument is provided a number between `0` and the given number\n     * is returned. If `floating` is `true`, or either `lower` or `upper` are\n     * floats, a floating-point number is returned instead of an integer.\n     *\n     * **Note:** JavaScript follows the IEEE-754 standard for resolving\n     * floating-point values which can produce unexpected results.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.7.0\n     * @category Number\n     * @param {number} [lower=0] The lower bound.\n     * @param {number} [upper=1] The upper bound.\n     * @param {boolean} [floating] Specify returning a floating-point number.\n     * @returns {number} Returns the random number.\n     * @example\n     *\n     * _.random(0, 5);\n     * // => an integer between 0 and 5\n     *\n     * _.random(5);\n     * // => also an integer between 0 and 5\n     *\n     * _.random(5, true);\n     * // => a floating-point number between 0 and 5\n     *\n     * _.random(1.2, 5.2);\n     * // => a floating-point number between 1.2 and 5.2\n     */\n    function random(lower, upper, floating) {\n      if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n        upper = floating = undefined;\n      }\n      if (floating === undefined) {\n        if (typeof upper == 'boolean') {\n          floating = upper;\n          upper = undefined;\n        }\n        else if (typeof lower == 'boolean') {\n          floating = lower;\n          lower = undefined;\n        }\n      }\n      if (lower === undefined && upper === undefined) {\n        lower = 0;\n        upper = 1;\n      }\n      else {\n        lower = toFinite(lower);\n        if (upper === undefined) {\n          upper = lower;\n          lower = 0;\n        } else {\n          upper = toFinite(upper);\n        }\n      }\n      if (lower > upper) {\n        var temp = lower;\n        lower = upper;\n        upper = temp;\n      }\n      if (floating || lower % 1 || upper % 1) {\n        var rand = nativeRandom();\n        return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);\n      }\n      return baseRandom(lower, upper);\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the camel cased string.\n     * @example\n     *\n     * _.camelCase('Foo Bar');\n     * // => 'fooBar'\n     *\n     * _.camelCase('--foo-bar--');\n     * // => 'fooBar'\n     *\n     * _.camelCase('__FOO_BAR__');\n     * // => 'fooBar'\n     */\n    var camelCase = createCompounder(function(result, word, index) {\n      word = word.toLowerCase();\n      return result + (index ? capitalize(word) : word);\n    });\n\n    /**\n     * Converts the first character of `string` to upper case and the remaining\n     * to lower case.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to capitalize.\n     * @returns {string} Returns the capitalized string.\n     * @example\n     *\n     * _.capitalize('FRED');\n     * // => 'Fred'\n     */\n    function capitalize(string) {\n      return upperFirst(toString(string).toLowerCase());\n    }\n\n    /**\n     * Deburrs `string` by converting\n     * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n     * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n     * letters to basic Latin letters and removing\n     * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to deburr.\n     * @returns {string} Returns the deburred string.\n     * @example\n     *\n     * _.deburr('déjà vu');\n     * // => 'deja vu'\n     */\n    function deburr(string) {\n      string = toString(string);\n      return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n    }\n\n    /**\n     * Checks if `string` ends with the given target string.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to inspect.\n     * @param {string} [target] The string to search for.\n     * @param {number} [position=string.length] The position to search up to.\n     * @returns {boolean} Returns `true` if `string` ends with `target`,\n     *  else `false`.\n     * @example\n     *\n     * _.endsWith('abc', 'c');\n     * // => true\n     *\n     * _.endsWith('abc', 'b');\n     * // => false\n     *\n     * _.endsWith('abc', 'b', 2);\n     * // => true\n     */\n    function endsWith(string, target, position) {\n      string = toString(string);\n      target = baseToString(target);\n\n      var length = string.length;\n      position = position === undefined\n        ? length\n        : baseClamp(toInteger(position), 0, length);\n\n      var end = position;\n      position -= target.length;\n      return position >= 0 && string.slice(position, end) == target;\n    }\n\n    /**\n     * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n     * corresponding HTML entities.\n     *\n     * **Note:** No other characters are escaped. To escape additional\n     * characters use a third-party library like [_he_](https://mths.be/he).\n     *\n     * Though the \">\" character is escaped for symmetry, characters like\n     * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n     * unless they're part of a tag or unquoted attribute value. See\n     * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n     * (under \"semi-related fun fact\") for more details.\n     *\n     * When working with HTML you should always\n     * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n     * XSS vectors.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category String\n     * @param {string} [string=''] The string to escape.\n     * @returns {string} Returns the escaped string.\n     * @example\n     *\n     * _.escape('fred, barney, & pebbles');\n     * // => 'fred, barney, &amp; pebbles'\n     */\n    function escape(string) {\n      string = toString(string);\n      return (string && reHasUnescapedHtml.test(string))\n        ? string.replace(reUnescapedHtml, escapeHtmlChar)\n        : string;\n    }\n\n    /**\n     * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n     * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to escape.\n     * @returns {string} Returns the escaped string.\n     * @example\n     *\n     * _.escapeRegExp('[lodash](https://lodash.com/)');\n     * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n     */\n    function escapeRegExp(string) {\n      string = toString(string);\n      return (string && reHasRegExpChar.test(string))\n        ? string.replace(reRegExpChar, '\\\\$&')\n        : string;\n    }\n\n    /**\n     * Converts `string` to\n     * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the kebab cased string.\n     * @example\n     *\n     * _.kebabCase('Foo Bar');\n     * // => 'foo-bar'\n     *\n     * _.kebabCase('fooBar');\n     * // => 'foo-bar'\n     *\n     * _.kebabCase('__FOO_BAR__');\n     * // => 'foo-bar'\n     */\n    var kebabCase = createCompounder(function(result, word, index) {\n      return result + (index ? '-' : '') + word.toLowerCase();\n    });\n\n    /**\n     * Converts `string`, as space separated words, to lower case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the lower cased string.\n     * @example\n     *\n     * _.lowerCase('--Foo-Bar--');\n     * // => 'foo bar'\n     *\n     * _.lowerCase('fooBar');\n     * // => 'foo bar'\n     *\n     * _.lowerCase('__FOO_BAR__');\n     * // => 'foo bar'\n     */\n    var lowerCase = createCompounder(function(result, word, index) {\n      return result + (index ? ' ' : '') + word.toLowerCase();\n    });\n\n    /**\n     * Converts the first character of `string` to lower case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the converted string.\n     * @example\n     *\n     * _.lowerFirst('Fred');\n     * // => 'fred'\n     *\n     * _.lowerFirst('FRED');\n     * // => 'fRED'\n     */\n    var lowerFirst = createCaseFirst('toLowerCase');\n\n    /**\n     * Pads `string` on the left and right sides if it's shorter than `length`.\n     * Padding characters are truncated if they can't be evenly divided by `length`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to pad.\n     * @param {number} [length=0] The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padded string.\n     * @example\n     *\n     * _.pad('abc', 8);\n     * // => '  abc   '\n     *\n     * _.pad('abc', 8, '_-');\n     * // => '_-abc_-_'\n     *\n     * _.pad('abc', 3);\n     * // => 'abc'\n     */\n    function pad(string, length, chars) {\n      string = toString(string);\n      length = toInteger(length);\n\n      var strLength = length ? stringSize(string) : 0;\n      if (!length || strLength >= length) {\n        return string;\n      }\n      var mid = (length - strLength) / 2;\n      return (\n        createPadding(nativeFloor(mid), chars) +\n        string +\n        createPadding(nativeCeil(mid), chars)\n      );\n    }\n\n    /**\n     * Pads `string` on the right side if it's shorter than `length`. Padding\n     * characters are truncated if they exceed `length`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to pad.\n     * @param {number} [length=0] The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padded string.\n     * @example\n     *\n     * _.padEnd('abc', 6);\n     * // => 'abc   '\n     *\n     * _.padEnd('abc', 6, '_-');\n     * // => 'abc_-_'\n     *\n     * _.padEnd('abc', 3);\n     * // => 'abc'\n     */\n    function padEnd(string, length, chars) {\n      string = toString(string);\n      length = toInteger(length);\n\n      var strLength = length ? stringSize(string) : 0;\n      return (length && strLength < length)\n        ? (string + createPadding(length - strLength, chars))\n        : string;\n    }\n\n    /**\n     * Pads `string` on the left side if it's shorter than `length`. Padding\n     * characters are truncated if they exceed `length`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to pad.\n     * @param {number} [length=0] The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padded string.\n     * @example\n     *\n     * _.padStart('abc', 6);\n     * // => '   abc'\n     *\n     * _.padStart('abc', 6, '_-');\n     * // => '_-_abc'\n     *\n     * _.padStart('abc', 3);\n     * // => 'abc'\n     */\n    function padStart(string, length, chars) {\n      string = toString(string);\n      length = toInteger(length);\n\n      var strLength = length ? stringSize(string) : 0;\n      return (length && strLength < length)\n        ? (createPadding(length - strLength, chars) + string)\n        : string;\n    }\n\n    /**\n     * Converts `string` to an integer of the specified radix. If `radix` is\n     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n     * hexadecimal, in which case a `radix` of `16` is used.\n     *\n     * **Note:** This method aligns with the\n     * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.1.0\n     * @category String\n     * @param {string} string The string to convert.\n     * @param {number} [radix=10] The radix to interpret `value` by.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.parseInt('08');\n     * // => 8\n     *\n     * _.map(['6', '08', '10'], _.parseInt);\n     * // => [6, 8, 10]\n     */\n    function parseInt(string, radix, guard) {\n      if (guard || radix == null) {\n        radix = 0;\n      } else if (radix) {\n        radix = +radix;\n      }\n      return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n    }\n\n    /**\n     * Repeats the given string `n` times.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to repeat.\n     * @param {number} [n=1] The number of times to repeat the string.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the repeated string.\n     * @example\n     *\n     * _.repeat('*', 3);\n     * // => '***'\n     *\n     * _.repeat('abc', 2);\n     * // => 'abcabc'\n     *\n     * _.repeat('abc', 0);\n     * // => ''\n     */\n    function repeat(string, n, guard) {\n      if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {\n        n = 1;\n      } else {\n        n = toInteger(n);\n      }\n      return baseRepeat(toString(string), n);\n    }\n\n    /**\n     * Replaces matches for `pattern` in `string` with `replacement`.\n     *\n     * **Note:** This method is based on\n     * [`String#replace`](https://mdn.io/String/replace).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to modify.\n     * @param {RegExp|string} pattern The pattern to replace.\n     * @param {Function|string} replacement The match replacement.\n     * @returns {string} Returns the modified string.\n     * @example\n     *\n     * _.replace('Hi Fred', 'Fred', 'Barney');\n     * // => 'Hi Barney'\n     */\n    function replace() {\n      var args = arguments,\n          string = toString(args[0]);\n\n      return args.length < 3 ? string : string.replace(args[1], args[2]);\n    }\n\n    /**\n     * Converts `string` to\n     * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the snake cased string.\n     * @example\n     *\n     * _.snakeCase('Foo Bar');\n     * // => 'foo_bar'\n     *\n     * _.snakeCase('fooBar');\n     * // => 'foo_bar'\n     *\n     * _.snakeCase('--FOO-BAR--');\n     * // => 'foo_bar'\n     */\n    var snakeCase = createCompounder(function(result, word, index) {\n      return result + (index ? '_' : '') + word.toLowerCase();\n    });\n\n    /**\n     * Splits `string` by `separator`.\n     *\n     * **Note:** This method is based on\n     * [`String#split`](https://mdn.io/String/split).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to split.\n     * @param {RegExp|string} separator The separator pattern to split by.\n     * @param {number} [limit] The length to truncate results to.\n     * @returns {Array} Returns the string segments.\n     * @example\n     *\n     * _.split('a-b-c', '-', 2);\n     * // => ['a', 'b']\n     */\n    function split(string, separator, limit) {\n      if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n        separator = limit = undefined;\n      }\n      limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n      if (!limit) {\n        return [];\n      }\n      string = toString(string);\n      if (string && (\n            typeof separator == 'string' ||\n            (separator != null && !isRegExp(separator))\n          )) {\n        separator = baseToString(separator);\n        if (!separator && hasUnicode(string)) {\n          return castSlice(stringToArray(string), 0, limit);\n        }\n      }\n      return string.split(separator, limit);\n    }\n\n    /**\n     * Converts `string` to\n     * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.1.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the start cased string.\n     * @example\n     *\n     * _.startCase('--foo-bar--');\n     * // => 'Foo Bar'\n     *\n     * _.startCase('fooBar');\n     * // => 'Foo Bar'\n     *\n     * _.startCase('__FOO_BAR__');\n     * // => 'FOO BAR'\n     */\n    var startCase = createCompounder(function(result, word, index) {\n      return result + (index ? ' ' : '') + upperFirst(word);\n    });\n\n    /**\n     * Checks if `string` starts with the given target string.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to inspect.\n     * @param {string} [target] The string to search for.\n     * @param {number} [position=0] The position to search from.\n     * @returns {boolean} Returns `true` if `string` starts with `target`,\n     *  else `false`.\n     * @example\n     *\n     * _.startsWith('abc', 'a');\n     * // => true\n     *\n     * _.startsWith('abc', 'b');\n     * // => false\n     *\n     * _.startsWith('abc', 'b', 1);\n     * // => true\n     */\n    function startsWith(string, target, position) {\n      string = toString(string);\n      position = position == null\n        ? 0\n        : baseClamp(toInteger(position), 0, string.length);\n\n      target = baseToString(target);\n      return string.slice(position, position + target.length) == target;\n    }\n\n    /**\n     * Creates a compiled template function that can interpolate data properties\n     * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n     * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n     * properties may be accessed as free variables in the template. If a setting\n     * object is given, it takes precedence over `_.templateSettings` values.\n     *\n     * **Note:** In the development build `_.template` utilizes\n     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n     * for easier debugging.\n     *\n     * For more information on precompiling templates see\n     * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n     *\n     * For more information on Chrome extension sandboxes see\n     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category String\n     * @param {string} [string=''] The template string.\n     * @param {Object} [options={}] The options object.\n     * @param {RegExp} [options.escape=_.templateSettings.escape]\n     *  The HTML \"escape\" delimiter.\n     * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n     *  The \"evaluate\" delimiter.\n     * @param {Object} [options.imports=_.templateSettings.imports]\n     *  An object to import into the template as free variables.\n     * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n     *  The \"interpolate\" delimiter.\n     * @param {string} [options.sourceURL='lodash.templateSources[n]']\n     *  The sourceURL of the compiled template.\n     * @param {string} [options.variable='obj']\n     *  The data object variable name.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the compiled template function.\n     * @example\n     *\n     * // Use the \"interpolate\" delimiter to create a compiled template.\n     * var compiled = _.template('hello <%= user %>!');\n     * compiled({ 'user': 'fred' });\n     * // => 'hello fred!'\n     *\n     * // Use the HTML \"escape\" delimiter to escape data property values.\n     * var compiled = _.template('<b><%- value %></b>');\n     * compiled({ 'value': '<script>' });\n     * // => '<b>&lt;script&gt;</b>'\n     *\n     * // Use the \"evaluate\" delimiter to execute JavaScript and generate HTML.\n     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');\n     * compiled({ 'users': ['fred', 'barney'] });\n     * // => '<li>fred</li><li>barney</li>'\n     *\n     * // Use the internal `print` function in \"evaluate\" delimiters.\n     * var compiled = _.template('<% print(\"hello \" + user); %>!');\n     * compiled({ 'user': 'barney' });\n     * // => 'hello barney!'\n     *\n     * // Use the ES template literal delimiter as an \"interpolate\" delimiter.\n     * // Disable support by replacing the \"interpolate\" delimiter.\n     * var compiled = _.template('hello ${ user }!');\n     * compiled({ 'user': 'pebbles' });\n     * // => 'hello pebbles!'\n     *\n     * // Use backslashes to treat delimiters as plain text.\n     * var compiled = _.template('<%= \"\\\\<%- value %\\\\>\" %>');\n     * compiled({ 'value': 'ignored' });\n     * // => '<%- value %>'\n     *\n     * // Use the `imports` option to import `jQuery` as `jq`.\n     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';\n     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });\n     * compiled({ 'users': ['fred', 'barney'] });\n     * // => '<li>fred</li><li>barney</li>'\n     *\n     * // Use the `sourceURL` option to specify a custom sourceURL for the template.\n     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });\n     * compiled(data);\n     * // => Find the source of \"greeting.jst\" under the Sources tab or Resources panel of the web inspector.\n     *\n     * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.\n     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });\n     * compiled.source;\n     * // => function(data) {\n     * //   var __t, __p = '';\n     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';\n     * //   return __p;\n     * // }\n     *\n     * // Use custom template delimiters.\n     * _.templateSettings.interpolate = /{{([\\s\\S]+?)}}/g;\n     * var compiled = _.template('hello {{ user }}!');\n     * compiled({ 'user': 'mustache' });\n     * // => 'hello mustache!'\n     *\n     * // Use the `source` property to inline compiled templates for meaningful\n     * // line numbers in error messages and stack traces.\n     * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\\\n     *   var JST = {\\\n     *     \"main\": ' + _.template(mainText).source + '\\\n     *   };\\\n     * ');\n     */\n    function template(string, options, guard) {\n      // Based on John Resig's `tmpl` implementation\n      // (http://ejohn.org/blog/javascript-micro-templating/)\n      // and Laura Doktorova's doT.js (https://github.com/olado/doT).\n      var settings = lodash.templateSettings;\n\n      if (guard && isIterateeCall(string, options, guard)) {\n        options = undefined;\n      }\n      string = toString(string);\n      options = assignInWith({}, options, settings, customDefaultsAssignIn);\n\n      var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),\n          importsKeys = keys(imports),\n          importsValues = baseValues(imports, importsKeys);\n\n      var isEscaping,\n          isEvaluating,\n          index = 0,\n          interpolate = options.interpolate || reNoMatch,\n          source = \"__p += '\";\n\n      // Compile the regexp to match each delimiter.\n      var reDelimiters = RegExp(\n        (options.escape || reNoMatch).source + '|' +\n        interpolate.source + '|' +\n        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +\n        (options.evaluate || reNoMatch).source + '|$'\n      , 'g');\n\n      // Use a sourceURL for easier debugging.\n      // The sourceURL gets injected into the source that's eval-ed, so be careful\n      // to normalize all kinds of whitespace, so e.g. newlines (and unicode versions of it) can't sneak in\n      // and escape the comment, thus injecting code that gets evaled.\n      var sourceURL = '//# sourceURL=' +\n        (hasOwnProperty.call(options, 'sourceURL')\n          ? (options.sourceURL + '').replace(/\\s/g, ' ')\n          : ('lodash.templateSources[' + (++templateCounter) + ']')\n        ) + '\\n';\n\n      string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {\n        interpolateValue || (interpolateValue = esTemplateValue);\n\n        // Escape characters that can't be included in string literals.\n        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);\n\n        // Replace delimiters with snippets.\n        if (escapeValue) {\n          isEscaping = true;\n          source += \"' +\\n__e(\" + escapeValue + \") +\\n'\";\n        }\n        if (evaluateValue) {\n          isEvaluating = true;\n          source += \"';\\n\" + evaluateValue + \";\\n__p += '\";\n        }\n        if (interpolateValue) {\n          source += \"' +\\n((__t = (\" + interpolateValue + \")) == null ? '' : __t) +\\n'\";\n        }\n        index = offset + match.length;\n\n        // The JS engine embedded in Adobe products needs `match` returned in\n        // order to produce the correct `offset` value.\n        return match;\n      });\n\n      source += \"';\\n\";\n\n      // If `variable` is not specified wrap a with-statement around the generated\n      // code to add the data object to the top of the scope chain.\n      var variable = hasOwnProperty.call(options, 'variable') && options.variable;\n      if (!variable) {\n        source = 'with (obj) {\\n' + source + '\\n}\\n';\n      }\n      // Throw an error if a forbidden character was found in `variable`, to prevent\n      // potential command injection attacks.\n      else if (reForbiddenIdentifierChars.test(variable)) {\n        throw new Error(INVALID_TEMPL_VAR_ERROR_TEXT);\n      }\n\n      // Cleanup code by stripping empty strings.\n      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)\n        .replace(reEmptyStringMiddle, '$1')\n        .replace(reEmptyStringTrailing, '$1;');\n\n      // Frame code as the function body.\n      source = 'function(' + (variable || 'obj') + ') {\\n' +\n        (variable\n          ? ''\n          : 'obj || (obj = {});\\n'\n        ) +\n        \"var __t, __p = ''\" +\n        (isEscaping\n           ? ', __e = _.escape'\n           : ''\n        ) +\n        (isEvaluating\n          ? ', __j = Array.prototype.join;\\n' +\n            \"function print() { __p += __j.call(arguments, '') }\\n\"\n          : ';\\n'\n        ) +\n        source +\n        'return __p\\n}';\n\n      var result = attempt(function() {\n        return Function(importsKeys, sourceURL + 'return ' + source)\n          .apply(undefined, importsValues);\n      });\n\n      // Provide the compiled function's source by its `toString` method or\n      // the `source` property as a convenience for inlining compiled templates.\n      result.source = source;\n      if (isError(result)) {\n        throw result;\n      }\n      return result;\n    }\n\n    /**\n     * Converts `string`, as a whole, to lower case just like\n     * [String#toLowerCase](https://mdn.io/toLowerCase).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the lower cased string.\n     * @example\n     *\n     * _.toLower('--Foo-Bar--');\n     * // => '--foo-bar--'\n     *\n     * _.toLower('fooBar');\n     * // => 'foobar'\n     *\n     * _.toLower('__FOO_BAR__');\n     * // => '__foo_bar__'\n     */\n    function toLower(value) {\n      return toString(value).toLowerCase();\n    }\n\n    /**\n     * Converts `string`, as a whole, to upper case just like\n     * [String#toUpperCase](https://mdn.io/toUpperCase).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the upper cased string.\n     * @example\n     *\n     * _.toUpper('--foo-bar--');\n     * // => '--FOO-BAR--'\n     *\n     * _.toUpper('fooBar');\n     * // => 'FOOBAR'\n     *\n     * _.toUpper('__foo_bar__');\n     * // => '__FOO_BAR__'\n     */\n    function toUpper(value) {\n      return toString(value).toUpperCase();\n    }\n\n    /**\n     * Removes leading and trailing whitespace or specified characters from `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to trim.\n     * @param {string} [chars=whitespace] The characters to trim.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the trimmed string.\n     * @example\n     *\n     * _.trim('  abc  ');\n     * // => 'abc'\n     *\n     * _.trim('-_-abc-_-', '_-');\n     * // => 'abc'\n     *\n     * _.map(['  foo  ', '  bar  '], _.trim);\n     * // => ['foo', 'bar']\n     */\n    function trim(string, chars, guard) {\n      string = toString(string);\n      if (string && (guard || chars === undefined)) {\n        return baseTrim(string);\n      }\n      if (!string || !(chars = baseToString(chars))) {\n        return string;\n      }\n      var strSymbols = stringToArray(string),\n          chrSymbols = stringToArray(chars),\n          start = charsStartIndex(strSymbols, chrSymbols),\n          end = charsEndIndex(strSymbols, chrSymbols) + 1;\n\n      return castSlice(strSymbols, start, end).join('');\n    }\n\n    /**\n     * Removes trailing whitespace or specified characters from `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to trim.\n     * @param {string} [chars=whitespace] The characters to trim.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the trimmed string.\n     * @example\n     *\n     * _.trimEnd('  abc  ');\n     * // => '  abc'\n     *\n     * _.trimEnd('-_-abc-_-', '_-');\n     * // => '-_-abc'\n     */\n    function trimEnd(string, chars, guard) {\n      string = toString(string);\n      if (string && (guard || chars === undefined)) {\n        return string.slice(0, trimmedEndIndex(string) + 1);\n      }\n      if (!string || !(chars = baseToString(chars))) {\n        return string;\n      }\n      var strSymbols = stringToArray(string),\n          end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;\n\n      return castSlice(strSymbols, 0, end).join('');\n    }\n\n    /**\n     * Removes leading whitespace or specified characters from `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to trim.\n     * @param {string} [chars=whitespace] The characters to trim.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the trimmed string.\n     * @example\n     *\n     * _.trimStart('  abc  ');\n     * // => 'abc  '\n     *\n     * _.trimStart('-_-abc-_-', '_-');\n     * // => 'abc-_-'\n     */\n    function trimStart(string, chars, guard) {\n      string = toString(string);\n      if (string && (guard || chars === undefined)) {\n        return string.replace(reTrimStart, '');\n      }\n      if (!string || !(chars = baseToString(chars))) {\n        return string;\n      }\n      var strSymbols = stringToArray(string),\n          start = charsStartIndex(strSymbols, stringToArray(chars));\n\n      return castSlice(strSymbols, start).join('');\n    }\n\n    /**\n     * Truncates `string` if it's longer than the given maximum string length.\n     * The last characters of the truncated string are replaced with the omission\n     * string which defaults to \"...\".\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to truncate.\n     * @param {Object} [options={}] The options object.\n     * @param {number} [options.length=30] The maximum string length.\n     * @param {string} [options.omission='...'] The string to indicate text is omitted.\n     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.\n     * @returns {string} Returns the truncated string.\n     * @example\n     *\n     * _.truncate('hi-diddly-ho there, neighborino');\n     * // => 'hi-diddly-ho there, neighbo...'\n     *\n     * _.truncate('hi-diddly-ho there, neighborino', {\n     *   'length': 24,\n     *   'separator': ' '\n     * });\n     * // => 'hi-diddly-ho there,...'\n     *\n     * _.truncate('hi-diddly-ho there, neighborino', {\n     *   'length': 24,\n     *   'separator': /,? +/\n     * });\n     * // => 'hi-diddly-ho there...'\n     *\n     * _.truncate('hi-diddly-ho there, neighborino', {\n     *   'omission': ' [...]'\n     * });\n     * // => 'hi-diddly-ho there, neig [...]'\n     */\n    function truncate(string, options) {\n      var length = DEFAULT_TRUNC_LENGTH,\n          omission = DEFAULT_TRUNC_OMISSION;\n\n      if (isObject(options)) {\n        var separator = 'separator' in options ? options.separator : separator;\n        length = 'length' in options ? toInteger(options.length) : length;\n        omission = 'omission' in options ? baseToString(options.omission) : omission;\n      }\n      string = toString(string);\n\n      var strLength = string.length;\n      if (hasUnicode(string)) {\n        var strSymbols = stringToArray(string);\n        strLength = strSymbols.length;\n      }\n      if (length >= strLength) {\n        return string;\n      }\n      var end = length - stringSize(omission);\n      if (end < 1) {\n        return omission;\n      }\n      var result = strSymbols\n        ? castSlice(strSymbols, 0, end).join('')\n        : string.slice(0, end);\n\n      if (separator === undefined) {\n        return result + omission;\n      }\n      if (strSymbols) {\n        end += (result.length - end);\n      }\n      if (isRegExp(separator)) {\n        if (string.slice(end).search(separator)) {\n          var match,\n              substring = result;\n\n          if (!separator.global) {\n            separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');\n          }\n          separator.lastIndex = 0;\n          while ((match = separator.exec(substring))) {\n            var newEnd = match.index;\n          }\n          result = result.slice(0, newEnd === undefined ? end : newEnd);\n        }\n      } else if (string.indexOf(baseToString(separator), end) != end) {\n        var index = result.lastIndexOf(separator);\n        if (index > -1) {\n          result = result.slice(0, index);\n        }\n      }\n      return result + omission;\n    }\n\n    /**\n     * The inverse of `_.escape`; this method converts the HTML entities\n     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to\n     * their corresponding characters.\n     *\n     * **Note:** No other HTML entities are unescaped. To unescape additional\n     * HTML entities use a third-party library like [_he_](https://mths.be/he).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.6.0\n     * @category String\n     * @param {string} [string=''] The string to unescape.\n     * @returns {string} Returns the unescaped string.\n     * @example\n     *\n     * _.unescape('fred, barney, &amp; pebbles');\n     * // => 'fred, barney, & pebbles'\n     */\n    function unescape(string) {\n      string = toString(string);\n      return (string && reHasEscapedHtml.test(string))\n        ? string.replace(reEscapedHtml, unescapeHtmlChar)\n        : string;\n    }\n\n    /**\n     * Converts `string`, as space separated words, to upper case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the upper cased string.\n     * @example\n     *\n     * _.upperCase('--foo-bar');\n     * // => 'FOO BAR'\n     *\n     * _.upperCase('fooBar');\n     * // => 'FOO BAR'\n     *\n     * _.upperCase('__foo_bar__');\n     * // => 'FOO BAR'\n     */\n    var upperCase = createCompounder(function(result, word, index) {\n      return result + (index ? ' ' : '') + word.toUpperCase();\n    });\n\n    /**\n     * Converts the first character of `string` to upper case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the converted string.\n     * @example\n     *\n     * _.upperFirst('fred');\n     * // => 'Fred'\n     *\n     * _.upperFirst('FRED');\n     * // => 'FRED'\n     */\n    var upperFirst = createCaseFirst('toUpperCase');\n\n    /**\n     * Splits `string` into an array of its words.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to inspect.\n     * @param {RegExp|string} [pattern] The pattern to match words.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the words of `string`.\n     * @example\n     *\n     * _.words('fred, barney, & pebbles');\n     * // => ['fred', 'barney', 'pebbles']\n     *\n     * _.words('fred, barney, & pebbles', /[^, ]+/g);\n     * // => ['fred', 'barney', '&', 'pebbles']\n     */\n    function words(string, pattern, guard) {\n      string = toString(string);\n      pattern = guard ? undefined : pattern;\n\n      if (pattern === undefined) {\n        return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);\n      }\n      return string.match(pattern) || [];\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Attempts to invoke `func`, returning either the result or the caught error\n     * object. Any additional arguments are provided to `func` when it's invoked.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {Function} func The function to attempt.\n     * @param {...*} [args] The arguments to invoke `func` with.\n     * @returns {*} Returns the `func` result or error object.\n     * @example\n     *\n     * // Avoid throwing errors for invalid selectors.\n     * var elements = _.attempt(function(selector) {\n     *   return document.querySelectorAll(selector);\n     * }, '>_>');\n     *\n     * if (_.isError(elements)) {\n     *   elements = [];\n     * }\n     */\n    var attempt = baseRest(function(func, args) {\n      try {\n        return apply(func, undefined, args);\n      } catch (e) {\n        return isError(e) ? e : new Error(e);\n      }\n    });\n\n    /**\n     * Binds methods of an object to the object itself, overwriting the existing\n     * method.\n     *\n     * **Note:** This method doesn't set the \"length\" property of bound functions.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {Object} object The object to bind and assign the bound methods to.\n     * @param {...(string|string[])} methodNames The object method names to bind.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var view = {\n     *   'label': 'docs',\n     *   'click': function() {\n     *     console.log('clicked ' + this.label);\n     *   }\n     * };\n     *\n     * _.bindAll(view, ['click']);\n     * jQuery(element).on('click', view.click);\n     * // => Logs 'clicked docs' when clicked.\n     */\n    var bindAll = flatRest(function(object, methodNames) {\n      arrayEach(methodNames, function(key) {\n        key = toKey(key);\n        baseAssignValue(object, key, bind(object[key], object));\n      });\n      return object;\n    });\n\n    /**\n     * Creates a function that iterates over `pairs` and invokes the corresponding\n     * function of the first predicate to return truthy. The predicate-function\n     * pairs are invoked with the `this` binding and arguments of the created\n     * function.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {Array} pairs The predicate-function pairs.\n     * @returns {Function} Returns the new composite function.\n     * @example\n     *\n     * var func = _.cond([\n     *   [_.matches({ 'a': 1 }),           _.constant('matches A')],\n     *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],\n     *   [_.stubTrue,                      _.constant('no match')]\n     * ]);\n     *\n     * func({ 'a': 1, 'b': 2 });\n     * // => 'matches A'\n     *\n     * func({ 'a': 0, 'b': 1 });\n     * // => 'matches B'\n     *\n     * func({ 'a': '1', 'b': '2' });\n     * // => 'no match'\n     */\n    function cond(pairs) {\n      var length = pairs == null ? 0 : pairs.length,\n          toIteratee = getIteratee();\n\n      pairs = !length ? [] : arrayMap(pairs, function(pair) {\n        if (typeof pair[1] != 'function') {\n          throw new TypeError(FUNC_ERROR_TEXT);\n        }\n        return [toIteratee(pair[0]), pair[1]];\n      });\n\n      return baseRest(function(args) {\n        var index = -1;\n        while (++index < length) {\n          var pair = pairs[index];\n          if (apply(pair[0], this, args)) {\n            return apply(pair[1], this, args);\n          }\n        }\n      });\n    }\n\n    /**\n     * Creates a function that invokes the predicate properties of `source` with\n     * the corresponding property values of a given object, returning `true` if\n     * all predicates return truthy, else `false`.\n     *\n     * **Note:** The created function is equivalent to `_.conformsTo` with\n     * `source` partially applied.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {Function} Returns the new spec function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': 2, 'b': 1 },\n     *   { 'a': 1, 'b': 2 }\n     * ];\n     *\n     * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));\n     * // => [{ 'a': 1, 'b': 2 }]\n     */\n    function conforms(source) {\n      return baseConforms(baseClone(source, CLONE_DEEP_FLAG));\n    }\n\n    /**\n     * Creates a function that returns `value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Util\n     * @param {*} value The value to return from the new function.\n     * @returns {Function} Returns the new constant function.\n     * @example\n     *\n     * var objects = _.times(2, _.constant({ 'a': 1 }));\n     *\n     * console.log(objects);\n     * // => [{ 'a': 1 }, { 'a': 1 }]\n     *\n     * console.log(objects[0] === objects[1]);\n     * // => true\n     */\n    function constant(value) {\n      return function() {\n        return value;\n      };\n    }\n\n    /**\n     * Checks `value` to determine whether a default value should be returned in\n     * its place. The `defaultValue` is returned if `value` is `NaN`, `null`,\n     * or `undefined`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.14.0\n     * @category Util\n     * @param {*} value The value to check.\n     * @param {*} defaultValue The default value.\n     * @returns {*} Returns the resolved value.\n     * @example\n     *\n     * _.defaultTo(1, 10);\n     * // => 1\n     *\n     * _.defaultTo(undefined, 10);\n     * // => 10\n     */\n    function defaultTo(value, defaultValue) {\n      return (value == null || value !== value) ? defaultValue : value;\n    }\n\n    /**\n     * Creates a function that returns the result of invoking the given functions\n     * with the `this` binding of the created function, where each successive\n     * invocation is supplied the return value of the previous.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [funcs] The functions to invoke.\n     * @returns {Function} Returns the new composite function.\n     * @see _.flowRight\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var addSquare = _.flow([_.add, square]);\n     * addSquare(1, 2);\n     * // => 9\n     */\n    var flow = createFlow();\n\n    /**\n     * This method is like `_.flow` except that it creates a function that\n     * invokes the given functions from right to left.\n     *\n     * @static\n     * @since 3.0.0\n     * @memberOf _\n     * @category Util\n     * @param {...(Function|Function[])} [funcs] The functions to invoke.\n     * @returns {Function} Returns the new composite function.\n     * @see _.flow\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var addSquare = _.flowRight([square, _.add]);\n     * addSquare(1, 2);\n     * // => 9\n     */\n    var flowRight = createFlow(true);\n\n    /**\n     * This method returns the first argument it receives.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {*} value Any value.\n     * @returns {*} Returns `value`.\n     * @example\n     *\n     * var object = { 'a': 1 };\n     *\n     * console.log(_.identity(object) === object);\n     * // => true\n     */\n    function identity(value) {\n      return value;\n    }\n\n    /**\n     * Creates a function that invokes `func` with the arguments of the created\n     * function. If `func` is a property name, the created function returns the\n     * property value for a given element. If `func` is an array or object, the\n     * created function returns `true` for elements that contain the equivalent\n     * source properties, otherwise it returns `false`.\n     *\n     * @static\n     * @since 4.0.0\n     * @memberOf _\n     * @category Util\n     * @param {*} [func=_.identity] The value to convert to a callback.\n     * @returns {Function} Returns the callback.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': true },\n     *   { 'user': 'fred',   'age': 40, 'active': false }\n     * ];\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));\n     * // => [{ 'user': 'barney', 'age': 36, 'active': true }]\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.filter(users, _.iteratee(['user', 'fred']));\n     * // => [{ 'user': 'fred', 'age': 40 }]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.map(users, _.iteratee('user'));\n     * // => ['barney', 'fred']\n     *\n     * // Create custom iteratee shorthands.\n     * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {\n     *   return !_.isRegExp(func) ? iteratee(func) : function(string) {\n     *     return func.test(string);\n     *   };\n     * });\n     *\n     * _.filter(['abc', 'def'], /ef/);\n     * // => ['def']\n     */\n    function iteratee(func) {\n      return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));\n    }\n\n    /**\n     * Creates a function that performs a partial deep comparison between a given\n     * object and `source`, returning `true` if the given object has equivalent\n     * property values, else `false`.\n     *\n     * **Note:** The created function is equivalent to `_.isMatch` with `source`\n     * partially applied.\n     *\n     * Partial comparisons will match empty array and empty object `source`\n     * values against any array or object value, respectively. See `_.isEqual`\n     * for a list of supported value comparisons.\n     *\n     * **Note:** Multiple values can be checked by combining several matchers\n     * using `_.overSome`\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {Object} source The object of property values to match.\n     * @returns {Function} Returns the new spec function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': 1, 'b': 2, 'c': 3 },\n     *   { 'a': 4, 'b': 5, 'c': 6 }\n     * ];\n     *\n     * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));\n     * // => [{ 'a': 4, 'b': 5, 'c': 6 }]\n     *\n     * // Checking for several possible values\n     * _.filter(objects, _.overSome([_.matches({ 'a': 1 }), _.matches({ 'a': 4 })]));\n     * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]\n     */\n    function matches(source) {\n      return baseMatches(baseClone(source, CLONE_DEEP_FLAG));\n    }\n\n    /**\n     * Creates a function that performs a partial deep comparison between the\n     * value at `path` of a given object to `srcValue`, returning `true` if the\n     * object value is equivalent, else `false`.\n     *\n     * **Note:** Partial comparisons will match empty array and empty object\n     * `srcValue` values against any array or object value, respectively. See\n     * `_.isEqual` for a list of supported value comparisons.\n     *\n     * **Note:** Multiple values can be checked by combining several matchers\n     * using `_.overSome`\n     *\n     * @static\n     * @memberOf _\n     * @since 3.2.0\n     * @category Util\n     * @param {Array|string} path The path of the property to get.\n     * @param {*} srcValue The value to match.\n     * @returns {Function} Returns the new spec function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': 1, 'b': 2, 'c': 3 },\n     *   { 'a': 4, 'b': 5, 'c': 6 }\n     * ];\n     *\n     * _.find(objects, _.matchesProperty('a', 4));\n     * // => { 'a': 4, 'b': 5, 'c': 6 }\n     *\n     * // Checking for several possible values\n     * _.filter(objects, _.overSome([_.matchesProperty('a', 1), _.matchesProperty('a', 4)]));\n     * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]\n     */\n    function matchesProperty(path, srcValue) {\n      return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG));\n    }\n\n    /**\n     * Creates a function that invokes the method at `path` of a given object.\n     * Any additional arguments are provided to the invoked method.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Util\n     * @param {Array|string} path The path of the method to invoke.\n     * @param {...*} [args] The arguments to invoke the method with.\n     * @returns {Function} Returns the new invoker function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': { 'b': _.constant(2) } },\n     *   { 'a': { 'b': _.constant(1) } }\n     * ];\n     *\n     * _.map(objects, _.method('a.b'));\n     * // => [2, 1]\n     *\n     * _.map(objects, _.method(['a', 'b']));\n     * // => [2, 1]\n     */\n    var method = baseRest(function(path, args) {\n      return function(object) {\n        return baseInvoke(object, path, args);\n      };\n    });\n\n    /**\n     * The opposite of `_.method`; this method creates a function that invokes\n     * the method at a given path of `object`. Any additional arguments are\n     * provided to the invoked method.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Util\n     * @param {Object} object The object to query.\n     * @param {...*} [args] The arguments to invoke the method with.\n     * @returns {Function} Returns the new invoker function.\n     * @example\n     *\n     * var array = _.times(3, _.constant),\n     *     object = { 'a': array, 'b': array, 'c': array };\n     *\n     * _.map(['a[2]', 'c[0]'], _.methodOf(object));\n     * // => [2, 0]\n     *\n     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));\n     * // => [2, 0]\n     */\n    var methodOf = baseRest(function(object, args) {\n      return function(path) {\n        return baseInvoke(object, path, args);\n      };\n    });\n\n    /**\n     * Adds all own enumerable string keyed function properties of a source\n     * object to the destination object. If `object` is a function, then methods\n     * are added to its prototype as well.\n     *\n     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to\n     * avoid conflicts caused by modifying the original.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {Function|Object} [object=lodash] The destination object.\n     * @param {Object} source The object of functions to add.\n     * @param {Object} [options={}] The options object.\n     * @param {boolean} [options.chain=true] Specify whether mixins are chainable.\n     * @returns {Function|Object} Returns `object`.\n     * @example\n     *\n     * function vowels(string) {\n     *   return _.filter(string, function(v) {\n     *     return /[aeiou]/i.test(v);\n     *   });\n     * }\n     *\n     * _.mixin({ 'vowels': vowels });\n     * _.vowels('fred');\n     * // => ['e']\n     *\n     * _('fred').vowels().value();\n     * // => ['e']\n     *\n     * _.mixin({ 'vowels': vowels }, { 'chain': false });\n     * _('fred').vowels();\n     * // => ['e']\n     */\n    function mixin(object, source, options) {\n      var props = keys(source),\n          methodNames = baseFunctions(source, props);\n\n      if (options == null &&\n          !(isObject(source) && (methodNames.length || !props.length))) {\n        options = source;\n        source = object;\n        object = this;\n        methodNames = baseFunctions(source, keys(source));\n      }\n      var chain = !(isObject(options) && 'chain' in options) || !!options.chain,\n          isFunc = isFunction(object);\n\n      arrayEach(methodNames, function(methodName) {\n        var func = source[methodName];\n        object[methodName] = func;\n        if (isFunc) {\n          object.prototype[methodName] = function() {\n            var chainAll = this.__chain__;\n            if (chain || chainAll) {\n              var result = object(this.__wrapped__),\n                  actions = result.__actions__ = copyArray(this.__actions__);\n\n              actions.push({ 'func': func, 'args': arguments, 'thisArg': object });\n              result.__chain__ = chainAll;\n              return result;\n            }\n            return func.apply(object, arrayPush([this.value()], arguments));\n          };\n        }\n      });\n\n      return object;\n    }\n\n    /**\n     * Reverts the `_` variable to its previous value and returns a reference to\n     * the `lodash` function.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @returns {Function} Returns the `lodash` function.\n     * @example\n     *\n     * var lodash = _.noConflict();\n     */\n    function noConflict() {\n      if (root._ === this) {\n        root._ = oldDash;\n      }\n      return this;\n    }\n\n    /**\n     * This method returns `undefined`.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.3.0\n     * @category Util\n     * @example\n     *\n     * _.times(2, _.noop);\n     * // => [undefined, undefined]\n     */\n    function noop() {\n      // No operation performed.\n    }\n\n    /**\n     * Creates a function that gets the argument at index `n`. If `n` is negative,\n     * the nth argument from the end is returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {number} [n=0] The index of the argument to return.\n     * @returns {Function} Returns the new pass-thru function.\n     * @example\n     *\n     * var func = _.nthArg(1);\n     * func('a', 'b', 'c', 'd');\n     * // => 'b'\n     *\n     * var func = _.nthArg(-2);\n     * func('a', 'b', 'c', 'd');\n     * // => 'c'\n     */\n    function nthArg(n) {\n      n = toInteger(n);\n      return baseRest(function(args) {\n        return baseNth(args, n);\n      });\n    }\n\n    /**\n     * Creates a function that invokes `iteratees` with the arguments it receives\n     * and returns their results.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [iteratees=[_.identity]]\n     *  The iteratees to invoke.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var func = _.over([Math.max, Math.min]);\n     *\n     * func(1, 2, 3, 4);\n     * // => [4, 1]\n     */\n    var over = createOver(arrayMap);\n\n    /**\n     * Creates a function that checks if **all** of the `predicates` return\n     * truthy when invoked with the arguments it receives.\n     *\n     * Following shorthands are possible for providing predicates.\n     * Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.\n     * Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [predicates=[_.identity]]\n     *  The predicates to check.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var func = _.overEvery([Boolean, isFinite]);\n     *\n     * func('1');\n     * // => true\n     *\n     * func(null);\n     * // => false\n     *\n     * func(NaN);\n     * // => false\n     */\n    var overEvery = createOver(arrayEvery);\n\n    /**\n     * Creates a function that checks if **any** of the `predicates` return\n     * truthy when invoked with the arguments it receives.\n     *\n     * Following shorthands are possible for providing predicates.\n     * Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.\n     * Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [predicates=[_.identity]]\n     *  The predicates to check.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var func = _.overSome([Boolean, isFinite]);\n     *\n     * func('1');\n     * // => true\n     *\n     * func(null);\n     * // => true\n     *\n     * func(NaN);\n     * // => false\n     *\n     * var matchesFunc = _.overSome([{ 'a': 1 }, { 'a': 2 }])\n     * var matchesPropertyFunc = _.overSome([['a', 1], ['a', 2]])\n     */\n    var overSome = createOver(arraySome);\n\n    /**\n     * Creates a function that returns the value at `path` of a given object.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Util\n     * @param {Array|string} path The path of the property to get.\n     * @returns {Function} Returns the new accessor function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': { 'b': 2 } },\n     *   { 'a': { 'b': 1 } }\n     * ];\n     *\n     * _.map(objects, _.property('a.b'));\n     * // => [2, 1]\n     *\n     * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');\n     * // => [1, 2]\n     */\n    function property(path) {\n      return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);\n    }\n\n    /**\n     * The opposite of `_.property`; this method creates a function that returns\n     * the value at a given path of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {Object} object The object to query.\n     * @returns {Function} Returns the new accessor function.\n     * @example\n     *\n     * var array = [0, 1, 2],\n     *     object = { 'a': array, 'b': array, 'c': array };\n     *\n     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));\n     * // => [2, 0]\n     *\n     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));\n     * // => [2, 0]\n     */\n    function propertyOf(object) {\n      return function(path) {\n        return object == null ? undefined : baseGet(object, path);\n      };\n    }\n\n    /**\n     * Creates an array of numbers (positive and/or negative) progressing from\n     * `start` up to, but not including, `end`. A step of `-1` is used if a negative\n     * `start` is specified without an `end` or `step`. If `end` is not specified,\n     * it's set to `start` with `start` then set to `0`.\n     *\n     * **Note:** JavaScript follows the IEEE-754 standard for resolving\n     * floating-point values which can produce unexpected results.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {number} [start=0] The start of the range.\n     * @param {number} end The end of the range.\n     * @param {number} [step=1] The value to increment or decrement by.\n     * @returns {Array} Returns the range of numbers.\n     * @see _.inRange, _.rangeRight\n     * @example\n     *\n     * _.range(4);\n     * // => [0, 1, 2, 3]\n     *\n     * _.range(-4);\n     * // => [0, -1, -2, -3]\n     *\n     * _.range(1, 5);\n     * // => [1, 2, 3, 4]\n     *\n     * _.range(0, 20, 5);\n     * // => [0, 5, 10, 15]\n     *\n     * _.range(0, -4, -1);\n     * // => [0, -1, -2, -3]\n     *\n     * _.range(1, 4, 0);\n     * // => [1, 1, 1]\n     *\n     * _.range(0);\n     * // => []\n     */\n    var range = createRange();\n\n    /**\n     * This method is like `_.range` except that it populates values in\n     * descending order.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {number} [start=0] The start of the range.\n     * @param {number} end The end of the range.\n     * @param {number} [step=1] The value to increment or decrement by.\n     * @returns {Array} Returns the range of numbers.\n     * @see _.inRange, _.range\n     * @example\n     *\n     * _.rangeRight(4);\n     * // => [3, 2, 1, 0]\n     *\n     * _.rangeRight(-4);\n     * // => [-3, -2, -1, 0]\n     *\n     * _.rangeRight(1, 5);\n     * // => [4, 3, 2, 1]\n     *\n     * _.rangeRight(0, 20, 5);\n     * // => [15, 10, 5, 0]\n     *\n     * _.rangeRight(0, -4, -1);\n     * // => [-3, -2, -1, 0]\n     *\n     * _.rangeRight(1, 4, 0);\n     * // => [1, 1, 1]\n     *\n     * _.rangeRight(0);\n     * // => []\n     */\n    var rangeRight = createRange(true);\n\n    /**\n     * This method returns a new empty array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {Array} Returns the new empty array.\n     * @example\n     *\n     * var arrays = _.times(2, _.stubArray);\n     *\n     * console.log(arrays);\n     * // => [[], []]\n     *\n     * console.log(arrays[0] === arrays[1]);\n     * // => false\n     */\n    function stubArray() {\n      return [];\n    }\n\n    /**\n     * This method returns `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {boolean} Returns `false`.\n     * @example\n     *\n     * _.times(2, _.stubFalse);\n     * // => [false, false]\n     */\n    function stubFalse() {\n      return false;\n    }\n\n    /**\n     * This method returns a new empty object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {Object} Returns the new empty object.\n     * @example\n     *\n     * var objects = _.times(2, _.stubObject);\n     *\n     * console.log(objects);\n     * // => [{}, {}]\n     *\n     * console.log(objects[0] === objects[1]);\n     * // => false\n     */\n    function stubObject() {\n      return {};\n    }\n\n    /**\n     * This method returns an empty string.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {string} Returns the empty string.\n     * @example\n     *\n     * _.times(2, _.stubString);\n     * // => ['', '']\n     */\n    function stubString() {\n      return '';\n    }\n\n    /**\n     * This method returns `true`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {boolean} Returns `true`.\n     * @example\n     *\n     * _.times(2, _.stubTrue);\n     * // => [true, true]\n     */\n    function stubTrue() {\n      return true;\n    }\n\n    /**\n     * Invokes the iteratee `n` times, returning an array of the results of\n     * each invocation. The iteratee is invoked with one argument; (index).\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {number} n The number of times to invoke `iteratee`.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the array of results.\n     * @example\n     *\n     * _.times(3, String);\n     * // => ['0', '1', '2']\n     *\n     *  _.times(4, _.constant(0));\n     * // => [0, 0, 0, 0]\n     */\n    function times(n, iteratee) {\n      n = toInteger(n);\n      if (n < 1 || n > MAX_SAFE_INTEGER) {\n        return [];\n      }\n      var index = MAX_ARRAY_LENGTH,\n          length = nativeMin(n, MAX_ARRAY_LENGTH);\n\n      iteratee = getIteratee(iteratee);\n      n -= MAX_ARRAY_LENGTH;\n\n      var result = baseTimes(length, iteratee);\n      while (++index < n) {\n        iteratee(index);\n      }\n      return result;\n    }\n\n    /**\n     * Converts `value` to a property path array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {*} value The value to convert.\n     * @returns {Array} Returns the new property path array.\n     * @example\n     *\n     * _.toPath('a.b.c');\n     * // => ['a', 'b', 'c']\n     *\n     * _.toPath('a[0].b.c');\n     * // => ['a', '0', 'b', 'c']\n     */\n    function toPath(value) {\n      if (isArray(value)) {\n        return arrayMap(value, toKey);\n      }\n      return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));\n    }\n\n    /**\n     * Generates a unique ID. If `prefix` is given, the ID is appended to it.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {string} [prefix=''] The value to prefix the ID with.\n     * @returns {string} Returns the unique ID.\n     * @example\n     *\n     * _.uniqueId('contact_');\n     * // => 'contact_104'\n     *\n     * _.uniqueId();\n     * // => '105'\n     */\n    function uniqueId(prefix) {\n      var id = ++idCounter;\n      return toString(prefix) + id;\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Adds two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.4.0\n     * @category Math\n     * @param {number} augend The first number in an addition.\n     * @param {number} addend The second number in an addition.\n     * @returns {number} Returns the total.\n     * @example\n     *\n     * _.add(6, 4);\n     * // => 10\n     */\n    var add = createMathOperation(function(augend, addend) {\n      return augend + addend;\n    }, 0);\n\n    /**\n     * Computes `number` rounded up to `precision`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Math\n     * @param {number} number The number to round up.\n     * @param {number} [precision=0] The precision to round up to.\n     * @returns {number} Returns the rounded up number.\n     * @example\n     *\n     * _.ceil(4.006);\n     * // => 5\n     *\n     * _.ceil(6.004, 2);\n     * // => 6.01\n     *\n     * _.ceil(6040, -2);\n     * // => 6100\n     */\n    var ceil = createRound('ceil');\n\n    /**\n     * Divide two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Math\n     * @param {number} dividend The first number in a division.\n     * @param {number} divisor The second number in a division.\n     * @returns {number} Returns the quotient.\n     * @example\n     *\n     * _.divide(6, 4);\n     * // => 1.5\n     */\n    var divide = createMathOperation(function(dividend, divisor) {\n      return dividend / divisor;\n    }, 1);\n\n    /**\n     * Computes `number` rounded down to `precision`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Math\n     * @param {number} number The number to round down.\n     * @param {number} [precision=0] The precision to round down to.\n     * @returns {number} Returns the rounded down number.\n     * @example\n     *\n     * _.floor(4.006);\n     * // => 4\n     *\n     * _.floor(0.046, 2);\n     * // => 0.04\n     *\n     * _.floor(4060, -2);\n     * // => 4000\n     */\n    var floor = createRound('floor');\n\n    /**\n     * Computes the maximum value of `array`. If `array` is empty or falsey,\n     * `undefined` is returned.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {*} Returns the maximum value.\n     * @example\n     *\n     * _.max([4, 2, 8, 6]);\n     * // => 8\n     *\n     * _.max([]);\n     * // => undefined\n     */\n    function max(array) {\n      return (array && array.length)\n        ? baseExtremum(array, identity, baseGt)\n        : undefined;\n    }\n\n    /**\n     * This method is like `_.max` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the criterion by which\n     * the value is ranked. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {*} Returns the maximum value.\n     * @example\n     *\n     * var objects = [{ 'n': 1 }, { 'n': 2 }];\n     *\n     * _.maxBy(objects, function(o) { return o.n; });\n     * // => { 'n': 2 }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.maxBy(objects, 'n');\n     * // => { 'n': 2 }\n     */\n    function maxBy(array, iteratee) {\n      return (array && array.length)\n        ? baseExtremum(array, getIteratee(iteratee, 2), baseGt)\n        : undefined;\n    }\n\n    /**\n     * Computes the mean of the values in `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {number} Returns the mean.\n     * @example\n     *\n     * _.mean([4, 2, 8, 6]);\n     * // => 5\n     */\n    function mean(array) {\n      return baseMean(array, identity);\n    }\n\n    /**\n     * This method is like `_.mean` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the value to be averaged.\n     * The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the mean.\n     * @example\n     *\n     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];\n     *\n     * _.meanBy(objects, function(o) { return o.n; });\n     * // => 5\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.meanBy(objects, 'n');\n     * // => 5\n     */\n    function meanBy(array, iteratee) {\n      return baseMean(array, getIteratee(iteratee, 2));\n    }\n\n    /**\n     * Computes the minimum value of `array`. If `array` is empty or falsey,\n     * `undefined` is returned.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {*} Returns the minimum value.\n     * @example\n     *\n     * _.min([4, 2, 8, 6]);\n     * // => 2\n     *\n     * _.min([]);\n     * // => undefined\n     */\n    function min(array) {\n      return (array && array.length)\n        ? baseExtremum(array, identity, baseLt)\n        : undefined;\n    }\n\n    /**\n     * This method is like `_.min` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the criterion by which\n     * the value is ranked. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {*} Returns the minimum value.\n     * @example\n     *\n     * var objects = [{ 'n': 1 }, { 'n': 2 }];\n     *\n     * _.minBy(objects, function(o) { return o.n; });\n     * // => { 'n': 1 }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.minBy(objects, 'n');\n     * // => { 'n': 1 }\n     */\n    function minBy(array, iteratee) {\n      return (array && array.length)\n        ? baseExtremum(array, getIteratee(iteratee, 2), baseLt)\n        : undefined;\n    }\n\n    /**\n     * Multiply two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Math\n     * @param {number} multiplier The first number in a multiplication.\n     * @param {number} multiplicand The second number in a multiplication.\n     * @returns {number} Returns the product.\n     * @example\n     *\n     * _.multiply(6, 4);\n     * // => 24\n     */\n    var multiply = createMathOperation(function(multiplier, multiplicand) {\n      return multiplier * multiplicand;\n    }, 1);\n\n    /**\n     * Computes `number` rounded to `precision`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Math\n     * @param {number} number The number to round.\n     * @param {number} [precision=0] The precision to round to.\n     * @returns {number} Returns the rounded number.\n     * @example\n     *\n     * _.round(4.006);\n     * // => 4\n     *\n     * _.round(4.006, 2);\n     * // => 4.01\n     *\n     * _.round(4060, -2);\n     * // => 4100\n     */\n    var round = createRound('round');\n\n    /**\n     * Subtract two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {number} minuend The first number in a subtraction.\n     * @param {number} subtrahend The second number in a subtraction.\n     * @returns {number} Returns the difference.\n     * @example\n     *\n     * _.subtract(6, 4);\n     * // => 2\n     */\n    var subtract = createMathOperation(function(minuend, subtrahend) {\n      return minuend - subtrahend;\n    }, 0);\n\n    /**\n     * Computes the sum of the values in `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.4.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {number} Returns the sum.\n     * @example\n     *\n     * _.sum([4, 2, 8, 6]);\n     * // => 20\n     */\n    function sum(array) {\n      return (array && array.length)\n        ? baseSum(array, identity)\n        : 0;\n    }\n\n    /**\n     * This method is like `_.sum` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the value to be summed.\n     * The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the sum.\n     * @example\n     *\n     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];\n     *\n     * _.sumBy(objects, function(o) { return o.n; });\n     * // => 20\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.sumBy(objects, 'n');\n     * // => 20\n     */\n    function sumBy(array, iteratee) {\n      return (array && array.length)\n        ? baseSum(array, getIteratee(iteratee, 2))\n        : 0;\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    // Add methods that return wrapped values in chain sequences.\n    lodash.after = after;\n    lodash.ary = ary;\n    lodash.assign = assign;\n    lodash.assignIn = assignIn;\n    lodash.assignInWith = assignInWith;\n    lodash.assignWith = assignWith;\n    lodash.at = at;\n    lodash.before = before;\n    lodash.bind = bind;\n    lodash.bindAll = bindAll;\n    lodash.bindKey = bindKey;\n    lodash.castArray = castArray;\n    lodash.chain = chain;\n    lodash.chunk = chunk;\n    lodash.compact = compact;\n    lodash.concat = concat;\n    lodash.cond = cond;\n    lodash.conforms = conforms;\n    lodash.constant = constant;\n    lodash.countBy = countBy;\n    lodash.create = create;\n    lodash.curry = curry;\n    lodash.curryRight = curryRight;\n    lodash.debounce = debounce;\n    lodash.defaults = defaults;\n    lodash.defaultsDeep = defaultsDeep;\n    lodash.defer = defer;\n    lodash.delay = delay;\n    lodash.difference = difference;\n    lodash.differenceBy = differenceBy;\n    lodash.differenceWith = differenceWith;\n    lodash.drop = drop;\n    lodash.dropRight = dropRight;\n    lodash.dropRightWhile = dropRightWhile;\n    lodash.dropWhile = dropWhile;\n    lodash.fill = fill;\n    lodash.filter = filter;\n    lodash.flatMap = flatMap;\n    lodash.flatMapDeep = flatMapDeep;\n    lodash.flatMapDepth = flatMapDepth;\n    lodash.flatten = flatten;\n    lodash.flattenDeep = flattenDeep;\n    lodash.flattenDepth = flattenDepth;\n    lodash.flip = flip;\n    lodash.flow = flow;\n    lodash.flowRight = flowRight;\n    lodash.fromPairs = fromPairs;\n    lodash.functions = functions;\n    lodash.functionsIn = functionsIn;\n    lodash.groupBy = groupBy;\n    lodash.initial = initial;\n    lodash.intersection = intersection;\n    lodash.intersectionBy = intersectionBy;\n    lodash.intersectionWith = intersectionWith;\n    lodash.invert = invert;\n    lodash.invertBy = invertBy;\n    lodash.invokeMap = invokeMap;\n    lodash.iteratee = iteratee;\n    lodash.keyBy = keyBy;\n    lodash.keys = keys;\n    lodash.keysIn = keysIn;\n    lodash.map = map;\n    lodash.mapKeys = mapKeys;\n    lodash.mapValues = mapValues;\n    lodash.matches = matches;\n    lodash.matchesProperty = matchesProperty;\n    lodash.memoize = memoize;\n    lodash.merge = merge;\n    lodash.mergeWith = mergeWith;\n    lodash.method = method;\n    lodash.methodOf = methodOf;\n    lodash.mixin = mixin;\n    lodash.negate = negate;\n    lodash.nthArg = nthArg;\n    lodash.omit = omit;\n    lodash.omitBy = omitBy;\n    lodash.once = once;\n    lodash.orderBy = orderBy;\n    lodash.over = over;\n    lodash.overArgs = overArgs;\n    lodash.overEvery = overEvery;\n    lodash.overSome = overSome;\n    lodash.partial = partial;\n    lodash.partialRight = partialRight;\n    lodash.partition = partition;\n    lodash.pick = pick;\n    lodash.pickBy = pickBy;\n    lodash.property = property;\n    lodash.propertyOf = propertyOf;\n    lodash.pull = pull;\n    lodash.pullAll = pullAll;\n    lodash.pullAllBy = pullAllBy;\n    lodash.pullAllWith = pullAllWith;\n    lodash.pullAt = pullAt;\n    lodash.range = range;\n    lodash.rangeRight = rangeRight;\n    lodash.rearg = rearg;\n    lodash.reject = reject;\n    lodash.remove = remove;\n    lodash.rest = rest;\n    lodash.reverse = reverse;\n    lodash.sampleSize = sampleSize;\n    lodash.set = set;\n    lodash.setWith = setWith;\n    lodash.shuffle = shuffle;\n    lodash.slice = slice;\n    lodash.sortBy = sortBy;\n    lodash.sortedUniq = sortedUniq;\n    lodash.sortedUniqBy = sortedUniqBy;\n    lodash.split = split;\n    lodash.spread = spread;\n    lodash.tail = tail;\n    lodash.take = take;\n    lodash.takeRight = takeRight;\n    lodash.takeRightWhile = takeRightWhile;\n    lodash.takeWhile = takeWhile;\n    lodash.tap = tap;\n    lodash.throttle = throttle;\n    lodash.thru = thru;\n    lodash.toArray = toArray;\n    lodash.toPairs = toPairs;\n    lodash.toPairsIn = toPairsIn;\n    lodash.toPath = toPath;\n    lodash.toPlainObject = toPlainObject;\n    lodash.transform = transform;\n    lodash.unary = unary;\n    lodash.union = union;\n    lodash.unionBy = unionBy;\n    lodash.unionWith = unionWith;\n    lodash.uniq = uniq;\n    lodash.uniqBy = uniqBy;\n    lodash.uniqWith = uniqWith;\n    lodash.unset = unset;\n    lodash.unzip = unzip;\n    lodash.unzipWith = unzipWith;\n    lodash.update = update;\n    lodash.updateWith = updateWith;\n    lodash.values = values;\n    lodash.valuesIn = valuesIn;\n    lodash.without = without;\n    lodash.words = words;\n    lodash.wrap = wrap;\n    lodash.xor = xor;\n    lodash.xorBy = xorBy;\n    lodash.xorWith = xorWith;\n    lodash.zip = zip;\n    lodash.zipObject = zipObject;\n    lodash.zipObjectDeep = zipObjectDeep;\n    lodash.zipWith = zipWith;\n\n    // Add aliases.\n    lodash.entries = toPairs;\n    lodash.entriesIn = toPairsIn;\n    lodash.extend = assignIn;\n    lodash.extendWith = assignInWith;\n\n    // Add methods to `lodash.prototype`.\n    mixin(lodash, lodash);\n\n    /*------------------------------------------------------------------------*/\n\n    // Add methods that return unwrapped values in chain sequences.\n    lodash.add = add;\n    lodash.attempt = attempt;\n    lodash.camelCase = camelCase;\n    lodash.capitalize = capitalize;\n    lodash.ceil = ceil;\n    lodash.clamp = clamp;\n    lodash.clone = clone;\n    lodash.cloneDeep = cloneDeep;\n    lodash.cloneDeepWith = cloneDeepWith;\n    lodash.cloneWith = cloneWith;\n    lodash.conformsTo = conformsTo;\n    lodash.deburr = deburr;\n    lodash.defaultTo = defaultTo;\n    lodash.divide = divide;\n    lodash.endsWith = endsWith;\n    lodash.eq = eq;\n    lodash.escape = escape;\n    lodash.escapeRegExp = escapeRegExp;\n    lodash.every = every;\n    lodash.find = find;\n    lodash.findIndex = findIndex;\n    lodash.findKey = findKey;\n    lodash.findLast = findLast;\n    lodash.findLastIndex = findLastIndex;\n    lodash.findLastKey = findLastKey;\n    lodash.floor = floor;\n    lodash.forEach = forEach;\n    lodash.forEachRight = forEachRight;\n    lodash.forIn = forIn;\n    lodash.forInRight = forInRight;\n    lodash.forOwn = forOwn;\n    lodash.forOwnRight = forOwnRight;\n    lodash.get = get;\n    lodash.gt = gt;\n    lodash.gte = gte;\n    lodash.has = has;\n    lodash.hasIn = hasIn;\n    lodash.head = head;\n    lodash.identity = identity;\n    lodash.includes = includes;\n    lodash.indexOf = indexOf;\n    lodash.inRange = inRange;\n    lodash.invoke = invoke;\n    lodash.isArguments = isArguments;\n    lodash.isArray = isArray;\n    lodash.isArrayBuffer = isArrayBuffer;\n    lodash.isArrayLike = isArrayLike;\n    lodash.isArrayLikeObject = isArrayLikeObject;\n    lodash.isBoolean = isBoolean;\n    lodash.isBuffer = isBuffer;\n    lodash.isDate = isDate;\n    lodash.isElement = isElement;\n    lodash.isEmpty = isEmpty;\n    lodash.isEqual = isEqual;\n    lodash.isEqualWith = isEqualWith;\n    lodash.isError = isError;\n    lodash.isFinite = isFinite;\n    lodash.isFunction = isFunction;\n    lodash.isInteger = isInteger;\n    lodash.isLength = isLength;\n    lodash.isMap = isMap;\n    lodash.isMatch = isMatch;\n    lodash.isMatchWith = isMatchWith;\n    lodash.isNaN = isNaN;\n    lodash.isNative = isNative;\n    lodash.isNil = isNil;\n    lodash.isNull = isNull;\n    lodash.isNumber = isNumber;\n    lodash.isObject = isObject;\n    lodash.isObjectLike = isObjectLike;\n    lodash.isPlainObject = isPlainObject;\n    lodash.isRegExp = isRegExp;\n    lodash.isSafeInteger = isSafeInteger;\n    lodash.isSet = isSet;\n    lodash.isString = isString;\n    lodash.isSymbol = isSymbol;\n    lodash.isTypedArray = isTypedArray;\n    lodash.isUndefined = isUndefined;\n    lodash.isWeakMap = isWeakMap;\n    lodash.isWeakSet = isWeakSet;\n    lodash.join = join;\n    lodash.kebabCase = kebabCase;\n    lodash.last = last;\n    lodash.lastIndexOf = lastIndexOf;\n    lodash.lowerCase = lowerCase;\n    lodash.lowerFirst = lowerFirst;\n    lodash.lt = lt;\n    lodash.lte = lte;\n    lodash.max = max;\n    lodash.maxBy = maxBy;\n    lodash.mean = mean;\n    lodash.meanBy = meanBy;\n    lodash.min = min;\n    lodash.minBy = minBy;\n    lodash.stubArray = stubArray;\n    lodash.stubFalse = stubFalse;\n    lodash.stubObject = stubObject;\n    lodash.stubString = stubString;\n    lodash.stubTrue = stubTrue;\n    lodash.multiply = multiply;\n    lodash.nth = nth;\n    lodash.noConflict = noConflict;\n    lodash.noop = noop;\n    lodash.now = now;\n    lodash.pad = pad;\n    lodash.padEnd = padEnd;\n    lodash.padStart = padStart;\n    lodash.parseInt = parseInt;\n    lodash.random = random;\n    lodash.reduce = reduce;\n    lodash.reduceRight = reduceRight;\n    lodash.repeat = repeat;\n    lodash.replace = replace;\n    lodash.result = result;\n    lodash.round = round;\n    lodash.runInContext = runInContext;\n    lodash.sample = sample;\n    lodash.size = size;\n    lodash.snakeCase = snakeCase;\n    lodash.some = some;\n    lodash.sortedIndex = sortedIndex;\n    lodash.sortedIndexBy = sortedIndexBy;\n    lodash.sortedIndexOf = sortedIndexOf;\n    lodash.sortedLastIndex = sortedLastIndex;\n    lodash.sortedLastIndexBy = sortedLastIndexBy;\n    lodash.sortedLastIndexOf = sortedLastIndexOf;\n    lodash.startCase = startCase;\n    lodash.startsWith = startsWith;\n    lodash.subtract = subtract;\n    lodash.sum = sum;\n    lodash.sumBy = sumBy;\n    lodash.template = template;\n    lodash.times = times;\n    lodash.toFinite = toFinite;\n    lodash.toInteger = toInteger;\n    lodash.toLength = toLength;\n    lodash.toLower = toLower;\n    lodash.toNumber = toNumber;\n    lodash.toSafeInteger = toSafeInteger;\n    lodash.toString = toString;\n    lodash.toUpper = toUpper;\n    lodash.trim = trim;\n    lodash.trimEnd = trimEnd;\n    lodash.trimStart = trimStart;\n    lodash.truncate = truncate;\n    lodash.unescape = unescape;\n    lodash.uniqueId = uniqueId;\n    lodash.upperCase = upperCase;\n    lodash.upperFirst = upperFirst;\n\n    // Add aliases.\n    lodash.each = forEach;\n    lodash.eachRight = forEachRight;\n    lodash.first = head;\n\n    mixin(lodash, (function() {\n      var source = {};\n      baseForOwn(lodash, function(func, methodName) {\n        if (!hasOwnProperty.call(lodash.prototype, methodName)) {\n          source[methodName] = func;\n        }\n      });\n      return source;\n    }()), { 'chain': false });\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * The semantic version number.\n     *\n     * @static\n     * @memberOf _\n     * @type {string}\n     */\n    lodash.VERSION = VERSION;\n\n    // Assign default placeholders.\n    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {\n      lodash[methodName].placeholder = lodash;\n    });\n\n    // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.\n    arrayEach(['drop', 'take'], function(methodName, index) {\n      LazyWrapper.prototype[methodName] = function(n) {\n        n = n === undefined ? 1 : nativeMax(toInteger(n), 0);\n\n        var result = (this.__filtered__ && !index)\n          ? new LazyWrapper(this)\n          : this.clone();\n\n        if (result.__filtered__) {\n          result.__takeCount__ = nativeMin(n, result.__takeCount__);\n        } else {\n          result.__views__.push({\n            'size': nativeMin(n, MAX_ARRAY_LENGTH),\n            'type': methodName + (result.__dir__ < 0 ? 'Right' : '')\n          });\n        }\n        return result;\n      };\n\n      LazyWrapper.prototype[methodName + 'Right'] = function(n) {\n        return this.reverse()[methodName](n).reverse();\n      };\n    });\n\n    // Add `LazyWrapper` methods that accept an `iteratee` value.\n    arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {\n      var type = index + 1,\n          isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;\n\n      LazyWrapper.prototype[methodName] = function(iteratee) {\n        var result = this.clone();\n        result.__iteratees__.push({\n          'iteratee': getIteratee(iteratee, 3),\n          'type': type\n        });\n        result.__filtered__ = result.__filtered__ || isFilter;\n        return result;\n      };\n    });\n\n    // Add `LazyWrapper` methods for `_.head` and `_.last`.\n    arrayEach(['head', 'last'], function(methodName, index) {\n      var takeName = 'take' + (index ? 'Right' : '');\n\n      LazyWrapper.prototype[methodName] = function() {\n        return this[takeName](1).value()[0];\n      };\n    });\n\n    // Add `LazyWrapper` methods for `_.initial` and `_.tail`.\n    arrayEach(['initial', 'tail'], function(methodName, index) {\n      var dropName = 'drop' + (index ? '' : 'Right');\n\n      LazyWrapper.prototype[methodName] = function() {\n        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);\n      };\n    });\n\n    LazyWrapper.prototype.compact = function() {\n      return this.filter(identity);\n    };\n\n    LazyWrapper.prototype.find = function(predicate) {\n      return this.filter(predicate).head();\n    };\n\n    LazyWrapper.prototype.findLast = function(predicate) {\n      return this.reverse().find(predicate);\n    };\n\n    LazyWrapper.prototype.invokeMap = baseRest(function(path, args) {\n      if (typeof path == 'function') {\n        return new LazyWrapper(this);\n      }\n      return this.map(function(value) {\n        return baseInvoke(value, path, args);\n      });\n    });\n\n    LazyWrapper.prototype.reject = function(predicate) {\n      return this.filter(negate(getIteratee(predicate)));\n    };\n\n    LazyWrapper.prototype.slice = function(start, end) {\n      start = toInteger(start);\n\n      var result = this;\n      if (result.__filtered__ && (start > 0 || end < 0)) {\n        return new LazyWrapper(result);\n      }\n      if (start < 0) {\n        result = result.takeRight(-start);\n      } else if (start) {\n        result = result.drop(start);\n      }\n      if (end !== undefined) {\n        end = toInteger(end);\n        result = end < 0 ? result.dropRight(-end) : result.take(end - start);\n      }\n      return result;\n    };\n\n    LazyWrapper.prototype.takeRightWhile = function(predicate) {\n      return this.reverse().takeWhile(predicate).reverse();\n    };\n\n    LazyWrapper.prototype.toArray = function() {\n      return this.take(MAX_ARRAY_LENGTH);\n    };\n\n    // Add `LazyWrapper` methods to `lodash.prototype`.\n    baseForOwn(LazyWrapper.prototype, function(func, methodName) {\n      var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),\n          isTaker = /^(?:head|last)$/.test(methodName),\n          lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName],\n          retUnwrapped = isTaker || /^find/.test(methodName);\n\n      if (!lodashFunc) {\n        return;\n      }\n      lodash.prototype[methodName] = function() {\n        var value = this.__wrapped__,\n            args = isTaker ? [1] : arguments,\n            isLazy = value instanceof LazyWrapper,\n            iteratee = args[0],\n            useLazy = isLazy || isArray(value);\n\n        var interceptor = function(value) {\n          var result = lodashFunc.apply(lodash, arrayPush([value], args));\n          return (isTaker && chainAll) ? result[0] : result;\n        };\n\n        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {\n          // Avoid lazy use if the iteratee has a \"length\" value other than `1`.\n          isLazy = useLazy = false;\n        }\n        var chainAll = this.__chain__,\n            isHybrid = !!this.__actions__.length,\n            isUnwrapped = retUnwrapped && !chainAll,\n            onlyLazy = isLazy && !isHybrid;\n\n        if (!retUnwrapped && useLazy) {\n          value = onlyLazy ? value : new LazyWrapper(this);\n          var result = func.apply(value, args);\n          result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });\n          return new LodashWrapper(result, chainAll);\n        }\n        if (isUnwrapped && onlyLazy) {\n          return func.apply(this, args);\n        }\n        result = this.thru(interceptor);\n        return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;\n      };\n    });\n\n    // Add `Array` methods to `lodash.prototype`.\n    arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {\n      var func = arrayProto[methodName],\n          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',\n          retUnwrapped = /^(?:pop|shift)$/.test(methodName);\n\n      lodash.prototype[methodName] = function() {\n        var args = arguments;\n        if (retUnwrapped && !this.__chain__) {\n          var value = this.value();\n          return func.apply(isArray(value) ? value : [], args);\n        }\n        return this[chainName](function(value) {\n          return func.apply(isArray(value) ? value : [], args);\n        });\n      };\n    });\n\n    // Map minified method names to their real names.\n    baseForOwn(LazyWrapper.prototype, function(func, methodName) {\n      var lodashFunc = lodash[methodName];\n      if (lodashFunc) {\n        var key = lodashFunc.name + '';\n        if (!hasOwnProperty.call(realNames, key)) {\n          realNames[key] = [];\n        }\n        realNames[key].push({ 'name': methodName, 'func': lodashFunc });\n      }\n    });\n\n    realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{\n      'name': 'wrapper',\n      'func': undefined\n    }];\n\n    // Add methods to `LazyWrapper`.\n    LazyWrapper.prototype.clone = lazyClone;\n    LazyWrapper.prototype.reverse = lazyReverse;\n    LazyWrapper.prototype.value = lazyValue;\n\n    // Add chain sequence methods to the `lodash` wrapper.\n    lodash.prototype.at = wrapperAt;\n    lodash.prototype.chain = wrapperChain;\n    lodash.prototype.commit = wrapperCommit;\n    lodash.prototype.next = wrapperNext;\n    lodash.prototype.plant = wrapperPlant;\n    lodash.prototype.reverse = wrapperReverse;\n    lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;\n\n    // Add lazy aliases.\n    lodash.prototype.first = lodash.prototype.head;\n\n    if (symIterator) {\n      lodash.prototype[symIterator] = wrapperToIterator;\n    }\n    return lodash;\n  });\n\n  /*--------------------------------------------------------------------------*/\n\n  // Export lodash.\n  var _ = runInContext();\n\n  // Some AMD build optimizers, like r.js, check for condition patterns like:\n  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {\n    // Expose Lodash on the global object to prevent errors when Lodash is\n    // loaded by a script tag in the presence of an AMD loader.\n    // See http://requirejs.org/docs/errors.html#mismatch for more details.\n    // Use `_.noConflict` to remove Lodash from the global object.\n    root._ = _;\n\n    // Define as an anonymous module so, through path mapping, it can be\n    // referenced as the \"underscore\" module.\n    define(function() {\n      return _;\n    });\n  }\n  // Check for `exports` after `define` in case a build optimizer adds it.\n  else if (freeModule) {\n    // Export for Node.js.\n    (freeModule.exports = _)._ = _;\n    // Export for CommonJS support.\n    freeExports._ = _;\n  }\n  else {\n    // Export to the global object.\n    root._ = _;\n  }\n}.call(this));\n\n/*!\n * angular-translate - v2.19.1 - 2024-01-21\n * \n * Copyright (c) 2024 The angular-translate team, Pascal Precht; Licensed MIT\n */\n(function (root, factory) {\n  if (typeof define === 'function' && define.amd) {\n    // AMD. Register as an anonymous module unless amdModuleId is set\n    define([], function () {\n      return (factory());\n    });\n  } else if (typeof module === 'object' && module.exports) {\n    // Node. Does not work with strict CommonJS, but\n    // only CommonJS-like environments that support module.exports,\n    // like Node.\n    module.exports = factory();\n  } else {\n    factory();\n  }\n}(this, function () {\n\n$translateStaticFilesLoader.$inject = ['$q', '$http'];\nangular.module('pascalprecht.translate')\n/**\n * @ngdoc object\n * @name pascalprecht.translate.$translateStaticFilesLoader\n * @requires $q\n * @requires $http\n *\n * @description\n * Creates a loading function for a typical static file url pattern:\n * \"lang-en_US.json\", \"lang-de_DE.json\", etc. Using this builder,\n * the response of these urls must be an object of key-value pairs.\n *\n * @param {object} options Options object, which gets prefix, suffix, key, and fileMap\n */\n.factory('$translateStaticFilesLoader', $translateStaticFilesLoader);\n\nfunction $translateStaticFilesLoader($q, $http) {\n\n  'use strict';\n\n  return function (options) {\n\n    if (!options || (!angular.isArray(options.files) && (!angular.isString(options.prefix) || !angular.isString(options.suffix)))) {\n      throw new Error('Couldn\\'t load static files, no files and prefix or suffix specified!');\n    }\n\n    if (!options.files) {\n      options.files = [{\n        prefix: options.prefix,\n        suffix: options.suffix\n      }];\n    }\n\n    var load = function (file) {\n      if (!file || (!angular.isString(file.prefix) || !angular.isString(file.suffix))) {\n        throw new Error('Couldn\\'t load static file, no prefix or suffix specified!');\n      }\n\n      var fileUrl = [\n        file.prefix,\n        options.key,\n        file.suffix\n      ].join('');\n\n      if (angular.isObject(options.fileMap) && options.fileMap[fileUrl]) {\n        fileUrl = options.fileMap[fileUrl];\n      }\n\n      return $http(angular.extend({\n        url: fileUrl,\n        method: 'GET'\n      }, options.$http))\n        .then(function(result) {\n          return result.data;\n        }, function () {\n          return $q.reject(options.key);\n        });\n    };\n\n    var promises = [],\n        length = options.files.length;\n\n    for (var i = 0; i < length; i++) {\n      promises.push(load({\n        prefix: options.files[i].prefix,\n        key: options.key,\n        suffix: options.files[i].suffix\n      }));\n    }\n\n    return $q.all(promises)\n      .then(function (data) {\n        var length = data.length,\n            mergedData = {};\n\n        for (var i = 0; i < length; i++) {\n          for (var key in data[i]) {\n            mergedData[key] = data[i][key];\n          }\n        }\n\n        return mergedData;\n      });\n  };\n}\n\n$translateStaticFilesLoader.displayName = '$translateStaticFilesLoader';\nreturn 'pascalprecht.translate';\n\n}));\n\n/* ========================================================================\n * Bootstrap: modal.js v3.4.1\n * https://getbootstrap.com/docs/3.4/javascript/#modals\n * ========================================================================\n * Copyright 2011-2019 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n  'use strict';\n\n  // MODAL CLASS DEFINITION\n  // ======================\n\n  var Modal = function (element, options) {\n    this.options = options\n    this.$body = $(document.body)\n    this.$element = $(element)\n    this.$dialog = this.$element.find('.modal-dialog')\n    this.$backdrop = null\n    this.isShown = null\n    this.originalBodyPad = null\n    this.scrollbarWidth = 0\n    this.ignoreBackdropClick = false\n    this.fixedContent = '.navbar-fixed-top, .navbar-fixed-bottom'\n\n    if (this.options.remote) {\n      this.$element\n        .find('.modal-content')\n        .load(this.options.remote, $.proxy(function () {\n          this.$element.trigger('loaded.bs.modal')\n        }, this))\n    }\n  }\n\n  Modal.VERSION = '3.4.1'\n\n  Modal.TRANSITION_DURATION = 300\n  Modal.BACKDROP_TRANSITION_DURATION = 150\n\n  Modal.DEFAULTS = {\n    backdrop: true,\n    keyboard: true,\n    show: true\n  }\n\n  Modal.prototype.toggle = function (_relatedTarget) {\n    return this.isShown ? this.hide() : this.show(_relatedTarget)\n  }\n\n  Modal.prototype.show = function (_relatedTarget) {\n    var that = this\n    var e = $.Event('show.bs.modal', { relatedTarget: _relatedTarget })\n\n    this.$element.trigger(e)\n\n    if (this.isShown || e.isDefaultPrevented()) return\n\n    this.isShown = true\n\n    this.checkScrollbar()\n    this.setScrollbar()\n    this.$body.addClass('modal-open')\n\n    this.escape()\n    this.resize()\n\n    this.$element.on('click.dismiss.bs.modal', '[data-dismiss=\"modal\"]', $.proxy(this.hide, this))\n\n    this.$dialog.on('mousedown.dismiss.bs.modal', function () {\n      that.$element.one('mouseup.dismiss.bs.modal', function (e) {\n        if ($(e.target).is(that.$element)) that.ignoreBackdropClick = true\n      })\n    })\n\n    this.backdrop(function () {\n      var transition = $.support.transition && that.$element.hasClass('fade')\n\n      if (!that.$element.parent().length) {\n        that.$element.appendTo(that.$body) // don't move modals dom position\n      }\n\n      that.$element\n        .show()\n        .scrollTop(0)\n\n      that.adjustDialog()\n\n      if (transition) {\n        that.$element[0].offsetWidth // force reflow\n      }\n\n      that.$element.addClass('in')\n\n      that.enforceFocus()\n\n      var e = $.Event('shown.bs.modal', { relatedTarget: _relatedTarget })\n\n      transition ?\n        that.$dialog // wait for modal to slide in\n          .one('bsTransitionEnd', function () {\n            that.$element.trigger('focus').trigger(e)\n          })\n          .emulateTransitionEnd(Modal.TRANSITION_DURATION) :\n        that.$element.trigger('focus').trigger(e)\n    })\n  }\n\n  Modal.prototype.hide = function (e) {\n    if (e) e.preventDefault()\n\n    e = $.Event('hide.bs.modal')\n\n    this.$element.trigger(e)\n\n    if (!this.isShown || e.isDefaultPrevented()) return\n\n    this.isShown = false\n\n    this.escape()\n    this.resize()\n\n    $(document).off('focusin.bs.modal')\n\n    this.$element\n      .removeClass('in')\n      .off('click.dismiss.bs.modal')\n      .off('mouseup.dismiss.bs.modal')\n\n    this.$dialog.off('mousedown.dismiss.bs.modal')\n\n    $.support.transition && this.$element.hasClass('fade') ?\n      this.$element\n        .one('bsTransitionEnd', $.proxy(this.hideModal, this))\n        .emulateTransitionEnd(Modal.TRANSITION_DURATION) :\n      this.hideModal()\n  }\n\n  Modal.prototype.enforceFocus = function () {\n    $(document)\n      .off('focusin.bs.modal') // guard against infinite focus loop\n      .on('focusin.bs.modal', $.proxy(function (e) {\n        if (document !== e.target &&\n          this.$element[0] !== e.target &&\n          !this.$element.has(e.target).length) {\n          this.$element.trigger('focus')\n        }\n      }, this))\n  }\n\n  Modal.prototype.escape = function () {\n    if (this.isShown && this.options.keyboard) {\n      this.$element.on('keydown.dismiss.bs.modal', $.proxy(function (e) {\n        e.which == 27 && this.hide()\n      }, this))\n    } else if (!this.isShown) {\n      this.$element.off('keydown.dismiss.bs.modal')\n    }\n  }\n\n  Modal.prototype.resize = function () {\n    if (this.isShown) {\n      $(window).on('resize.bs.modal', $.proxy(this.handleUpdate, this))\n    } else {\n      $(window).off('resize.bs.modal')\n    }\n  }\n\n  Modal.prototype.hideModal = function () {\n    var that = this\n    this.$element.hide()\n    this.backdrop(function () {\n      that.$body.removeClass('modal-open')\n      that.resetAdjustments()\n      that.resetScrollbar()\n      that.$element.trigger('hidden.bs.modal')\n    })\n  }\n\n  Modal.prototype.removeBackdrop = function () {\n    this.$backdrop && this.$backdrop.remove()\n    this.$backdrop = null\n  }\n\n  Modal.prototype.backdrop = function (callback) {\n    var that = this\n    var animate = this.$element.hasClass('fade') ? 'fade' : ''\n\n    if (this.isShown && this.options.backdrop) {\n      var doAnimate = $.support.transition && animate\n\n      this.$backdrop = $(document.createElement('div'))\n        .addClass('modal-backdrop ' + animate)\n        .appendTo(this.$body)\n\n      this.$element.on('click.dismiss.bs.modal', $.proxy(function (e) {\n        if (this.ignoreBackdropClick) {\n          this.ignoreBackdropClick = false\n          return\n        }\n        if (e.target !== e.currentTarget) return\n        this.options.backdrop == 'static'\n          ? this.$element[0].focus()\n          : this.hide()\n      }, this))\n\n      if (doAnimate) this.$backdrop[0].offsetWidth // force reflow\n\n      this.$backdrop.addClass('in')\n\n      if (!callback) return\n\n      doAnimate ?\n        this.$backdrop\n          .one('bsTransitionEnd', callback)\n          .emulateTransitionEnd(Modal.BACKDROP_TRANSITION_DURATION) :\n        callback()\n\n    } else if (!this.isShown && this.$backdrop) {\n      this.$backdrop.removeClass('in')\n\n      var callbackRemove = function () {\n        that.removeBackdrop()\n        callback && callback()\n      }\n      $.support.transition && this.$element.hasClass('fade') ?\n        this.$backdrop\n          .one('bsTransitionEnd', callbackRemove)\n          .emulateTransitionEnd(Modal.BACKDROP_TRANSITION_DURATION) :\n        callbackRemove()\n\n    } else if (callback) {\n      callback()\n    }\n  }\n\n  // these following methods are used to handle overflowing modals\n\n  Modal.prototype.handleUpdate = function () {\n    this.adjustDialog()\n  }\n\n  Modal.prototype.adjustDialog = function () {\n    var modalIsOverflowing = this.$element[0].scrollHeight > document.documentElement.clientHeight\n\n    this.$element.css({\n      paddingLeft: !this.bodyIsOverflowing && modalIsOverflowing ? this.scrollbarWidth : '',\n      paddingRight: this.bodyIsOverflowing && !modalIsOverflowing ? this.scrollbarWidth : ''\n    })\n  }\n\n  Modal.prototype.resetAdjustments = function () {\n    this.$element.css({\n      paddingLeft: '',\n      paddingRight: ''\n    })\n  }\n\n  Modal.prototype.checkScrollbar = function () {\n    var fullWindowWidth = window.innerWidth\n    if (!fullWindowWidth) { // workaround for missing window.innerWidth in IE8\n      var documentElementRect = document.documentElement.getBoundingClientRect()\n      fullWindowWidth = documentElementRect.right - Math.abs(documentElementRect.left)\n    }\n    this.bodyIsOverflowing = document.body.clientWidth < fullWindowWidth\n    this.scrollbarWidth = this.measureScrollbar()\n  }\n\n  Modal.prototype.setScrollbar = function () {\n    var bodyPad = parseInt((this.$body.css('padding-right') || 0), 10)\n    this.originalBodyPad = document.body.style.paddingRight || ''\n    var scrollbarWidth = this.scrollbarWidth\n    if (this.bodyIsOverflowing) {\n      this.$body.css('padding-right', bodyPad + scrollbarWidth)\n      $(this.fixedContent).each(function (index, element) {\n        var actualPadding = element.style.paddingRight\n        var calculatedPadding = $(element).css('padding-right')\n        $(element)\n          .data('padding-right', actualPadding)\n          .css('padding-right', parseFloat(calculatedPadding) + scrollbarWidth + 'px')\n      })\n    }\n  }\n\n  Modal.prototype.resetScrollbar = function () {\n    this.$body.css('padding-right', this.originalBodyPad)\n    $(this.fixedContent).each(function (index, element) {\n      var padding = $(element).data('padding-right')\n      $(element).removeData('padding-right')\n      element.style.paddingRight = padding ? padding : ''\n    })\n  }\n\n  Modal.prototype.measureScrollbar = function () { // thx walsh\n    var scrollDiv = document.createElement('div')\n    scrollDiv.className = 'modal-scrollbar-measure'\n    this.$body.append(scrollDiv)\n    var scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth\n    this.$body[0].removeChild(scrollDiv)\n    return scrollbarWidth\n  }\n\n\n  // MODAL PLUGIN DEFINITION\n  // =======================\n\n  function Plugin(option, _relatedTarget) {\n    return this.each(function () {\n      var $this = $(this)\n      var data = $this.data('bs.modal')\n      var options = $.extend({}, Modal.DEFAULTS, $this.data(), typeof option == 'object' && option)\n\n      if (!data) $this.data('bs.modal', (data = new Modal(this, options)))\n      if (typeof option == 'string') data[option](_relatedTarget)\n      else if (options.show) data.show(_relatedTarget)\n    })\n  }\n\n  var old = $.fn.modal\n\n  $.fn.modal = Plugin\n  $.fn.modal.Constructor = Modal\n\n\n  // MODAL NO CONFLICT\n  // =================\n\n  $.fn.modal.noConflict = function () {\n    $.fn.modal = old\n    return this\n  }\n\n\n  // MODAL DATA-API\n  // ==============\n\n  $(document).on('click.bs.modal.data-api', '[data-toggle=\"modal\"]', function (e) {\n    var $this = $(this)\n    var href = $this.attr('href')\n    var target = $this.attr('data-target') ||\n      (href && href.replace(/.*(?=#[^\\s]+$)/, '')) // strip for ie7\n\n    var $target = $(document).find(target)\n    var option = $target.data('bs.modal') ? 'toggle' : $.extend({ remote: !/#/.test(href) && href }, $target.data(), $this.data())\n\n    if ($this.is('a')) e.preventDefault()\n\n    $target.one('show.bs.modal', function (showEvent) {\n      if (showEvent.isDefaultPrevented()) return // only register focus restorer if modal will actually get shown\n      $target.one('hidden.bs.modal', function () {\n        $this.is(':visible') && $this.trigger('focus')\n      })\n    })\n    Plugin.call($target, option, this)\n  })\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: dropdown.js v3.4.1\n * https://getbootstrap.com/docs/3.4/javascript/#dropdowns\n * ========================================================================\n * Copyright 2011-2019 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n  'use strict';\n\n  // DROPDOWN CLASS DEFINITION\n  // =========================\n\n  var backdrop = '.dropdown-backdrop'\n  var toggle   = '[data-toggle=\"dropdown\"]'\n  var Dropdown = function (element) {\n    $(element).on('click.bs.dropdown', this.toggle)\n  }\n\n  Dropdown.VERSION = '3.4.1'\n\n  function getParent($this) {\n    var selector = $this.attr('data-target')\n\n    if (!selector) {\n      selector = $this.attr('href')\n      selector = selector && /#[A-Za-z]/.test(selector) && selector.replace(/.*(?=#[^\\s]*$)/, '') // strip for ie7\n    }\n\n    var $parent = selector !== '#' ? $(document).find(selector) : null\n\n    return $parent && $parent.length ? $parent : $this.parent()\n  }\n\n  function clearMenus(e) {\n    if (e && e.which === 3) return\n    $(backdrop).remove()\n    $(toggle).each(function () {\n      var $this         = $(this)\n      var $parent       = getParent($this)\n      var relatedTarget = { relatedTarget: this }\n\n      if (!$parent.hasClass('open')) return\n\n      if (e && e.type == 'click' && /input|textarea/i.test(e.target.tagName) && $.contains($parent[0], e.target)) return\n\n      $parent.trigger(e = $.Event('hide.bs.dropdown', relatedTarget))\n\n      if (e.isDefaultPrevented()) return\n\n      $this.attr('aria-expanded', 'false')\n      $parent.removeClass('open').trigger($.Event('hidden.bs.dropdown', relatedTarget))\n    })\n  }\n\n  Dropdown.prototype.toggle = function (e) {\n    var $this = $(this)\n\n    if ($this.is('.disabled, :disabled')) return\n\n    var $parent  = getParent($this)\n    var isActive = $parent.hasClass('open')\n\n    clearMenus()\n\n    if (!isActive) {\n      if ('ontouchstart' in document.documentElement && !$parent.closest('.navbar-nav').length) {\n        // if mobile we use a backdrop because click events don't delegate\n        $(document.createElement('div'))\n          .addClass('dropdown-backdrop')\n          .insertAfter($(this))\n          .on('click', clearMenus)\n      }\n\n      var relatedTarget = { relatedTarget: this }\n      $parent.trigger(e = $.Event('show.bs.dropdown', relatedTarget))\n\n      if (e.isDefaultPrevented()) return\n\n      $this\n        .trigger('focus')\n        .attr('aria-expanded', 'true')\n\n      $parent\n        .toggleClass('open')\n        .trigger($.Event('shown.bs.dropdown', relatedTarget))\n    }\n\n    return false\n  }\n\n  Dropdown.prototype.keydown = function (e) {\n    if (!/(38|40|27|32)/.test(e.which) || /input|textarea/i.test(e.target.tagName)) return\n\n    var $this = $(this)\n\n    e.preventDefault()\n    e.stopPropagation()\n\n    if ($this.is('.disabled, :disabled')) return\n\n    var $parent  = getParent($this)\n    var isActive = $parent.hasClass('open')\n\n    if (!isActive && e.which != 27 || isActive && e.which == 27) {\n      if (e.which == 27) $parent.find(toggle).trigger('focus')\n      return $this.trigger('click')\n    }\n\n    var desc = ' li:not(.disabled):visible a'\n    var $items = $parent.find('.dropdown-menu' + desc)\n\n    if (!$items.length) return\n\n    var index = $items.index(e.target)\n\n    if (e.which == 38 && index > 0)                 index--         // up\n    if (e.which == 40 && index < $items.length - 1) index++         // down\n    if (!~index)                                    index = 0\n\n    $items.eq(index).trigger('focus')\n  }\n\n\n  // DROPDOWN PLUGIN DEFINITION\n  // ==========================\n\n  function Plugin(option) {\n    return this.each(function () {\n      var $this = $(this)\n      var data  = $this.data('bs.dropdown')\n\n      if (!data) $this.data('bs.dropdown', (data = new Dropdown(this)))\n      if (typeof option == 'string') data[option].call($this)\n    })\n  }\n\n  var old = $.fn.dropdown\n\n  $.fn.dropdown             = Plugin\n  $.fn.dropdown.Constructor = Dropdown\n\n\n  // DROPDOWN NO CONFLICT\n  // ====================\n\n  $.fn.dropdown.noConflict = function () {\n    $.fn.dropdown = old\n    return this\n  }\n\n\n  // APPLY TO STANDARD DROPDOWN ELEMENTS\n  // ===================================\n\n  $(document)\n    .on('click.bs.dropdown.data-api', clearMenus)\n    .on('click.bs.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() })\n    .on('click.bs.dropdown.data-api', toggle, Dropdown.prototype.toggle)\n    .on('keydown.bs.dropdown.data-api', toggle, Dropdown.prototype.keydown)\n    .on('keydown.bs.dropdown.data-api', '.dropdown-menu', Dropdown.prototype.keydown)\n\n}(jQuery);\n\n/**\n * @license AngularJS v1.8.3\n * (c) 2010-2020 Google LLC. http://angularjs.org\n * License: MIT\n */\n(function(window, angular) {'use strict';\n\n/* global shallowCopy: true */\n\n/**\n * Creates a shallow copy of an object, an array or a primitive.\n *\n * Assumes that there are no proto properties for objects.\n */\nfunction shallowCopy(src, dst) {\n  if (isArray(src)) {\n    dst = dst || [];\n\n    for (var i = 0, ii = src.length; i < ii; i++) {\n      dst[i] = src[i];\n    }\n  } else if (isObject(src)) {\n    dst = dst || {};\n\n    for (var key in src) {\n      if (!(key.charAt(0) === '$' && key.charAt(1) === '$')) {\n        dst[key] = src[key];\n      }\n    }\n  }\n\n  return dst || src;\n}\n\n/* global routeToRegExp: true */\n\n/**\n * @param {string} path - The path to parse. (It is assumed to have query and hash stripped off.)\n * @param {Object} opts - Options.\n * @return {Object} - An object containing an array of path parameter names (`keys`) and a regular\n *     expression (`regexp`) that can be used to identify a matching URL and extract the path\n *     parameter values.\n *\n * @description\n * Parses the given path, extracting path parameter names and a regular expression to match URLs.\n *\n * Originally inspired by `pathRexp` in `visionmedia/express/lib/utils.js`.\n */\nfunction routeToRegExp(path, opts) {\n  var keys = [];\n\n  var pattern = path\n    .replace(/([().])/g, '\\\\$1')\n    .replace(/(\\/)?:(\\w+)(\\*\\?|[?*])?/g, function(_, slash, key, option) {\n      var optional = option === '?' || option === '*?';\n      var star = option === '*' || option === '*?';\n      keys.push({name: key, optional: optional});\n      slash = slash || '';\n      return (\n        (optional ? '(?:' + slash : slash + '(?:') +\n        (star ? '(.+?)' : '([^/]+)') +\n        (optional ? '?)?' : ')')\n      );\n    })\n    .replace(/([/$*])/g, '\\\\$1');\n\n  if (opts.ignoreTrailingSlashes) {\n    pattern = pattern.replace(/\\/+$/, '') + '/*';\n  }\n\n  return {\n    keys: keys,\n    regexp: new RegExp(\n      '^' + pattern + '(?:[?#]|$)',\n      opts.caseInsensitiveMatch ? 'i' : ''\n    )\n  };\n}\n\n/* global routeToRegExp: false */\n/* global shallowCopy: false */\n\n// `isArray` and `isObject` are necessary for `shallowCopy()` (included via `src/shallowCopy.js`).\n// They are initialized inside the `$RouteProvider`, to ensure `window.angular` is available.\nvar isArray;\nvar isObject;\nvar isDefined;\nvar noop;\n\n/**\n * @ngdoc module\n * @name ngRoute\n * @description\n *\n * The `ngRoute` module provides routing and deeplinking services and directives for AngularJS apps.\n *\n * ## Example\n * See {@link ngRoute.$route#examples $route} for an example of configuring and using `ngRoute`.\n *\n */\n/* global -ngRouteModule */\nvar ngRouteModule = angular.\n  module('ngRoute', []).\n  info({ angularVersion: '1.8.3' }).\n  provider('$route', $RouteProvider).\n  // Ensure `$route` will be instantiated in time to capture the initial `$locationChangeSuccess`\n  // event (unless explicitly disabled). This is necessary in case `ngView` is included in an\n  // asynchronously loaded template.\n  run(instantiateRoute);\nvar $routeMinErr = angular.$$minErr('ngRoute');\nvar isEagerInstantiationEnabled;\n\n\n/**\n * @ngdoc provider\n * @name $routeProvider\n * @this\n *\n * @description\n *\n * Used for configuring routes.\n *\n * ## Example\n * See {@link ngRoute.$route#examples $route} for an example of configuring and using `ngRoute`.\n *\n * ## Dependencies\n * Requires the {@link ngRoute `ngRoute`} module to be installed.\n */\nfunction $RouteProvider() {\n  isArray = angular.isArray;\n  isObject = angular.isObject;\n  isDefined = angular.isDefined;\n  noop = angular.noop;\n\n  function inherit(parent, extra) {\n    return angular.extend(Object.create(parent), extra);\n  }\n\n  var routes = {};\n\n  /**\n   * @ngdoc method\n   * @name $routeProvider#when\n   *\n   * @param {string} path Route path (matched against `$location.path`). If `$location.path`\n   *    contains redundant trailing slash or is missing one, the route will still match and the\n   *    `$location.path` will be updated to add or drop the trailing slash to exactly match the\n   *    route definition.\n   *\n   *    * `path` can contain named groups starting with a colon: e.g. `:name`. All characters up\n   *        to the next slash are matched and stored in `$routeParams` under the given `name`\n   *        when the route matches.\n   *    * `path` can contain named groups starting with a colon and ending with a star:\n   *        e.g.`:name*`. All characters are eagerly stored in `$routeParams` under the given `name`\n   *        when the route matches.\n   *    * `path` can contain optional named groups with a question mark: e.g.`:name?`.\n   *\n   *    For example, routes like `/color/:color/largecode/:largecode*\\/edit` will match\n   *    `/color/brown/largecode/code/with/slashes/edit` and extract:\n   *\n   *    * `color: brown`\n   *    * `largecode: code/with/slashes`.\n   *\n   *\n   * @param {Object} route Mapping information to be assigned to `$route.current` on route\n   *    match.\n   *\n   *    Object properties:\n   *\n   *    - `controller` – `{(string|Function)=}` – Controller fn that should be associated with\n   *      newly created scope or the name of a {@link angular.Module#controller registered\n   *      controller} if passed as a string.\n   *    - `controllerAs` – `{string=}` – An identifier name for a reference to the controller.\n   *      If present, the controller will be published to scope under the `controllerAs` name.\n   *    - `template` – `{(string|Function)=}` – html template as a string or a function that\n   *      returns an html template as a string which should be used by {@link\n   *      ngRoute.directive:ngView ngView} or {@link ng.directive:ngInclude ngInclude} directives.\n   *      This property takes precedence over `templateUrl`.\n   *\n   *      If `template` is a function, it will be called with the following parameters:\n   *\n   *      - `{Array.<Object>}` - route parameters extracted from the current\n   *        `$location.path()` by applying the current route\n   *\n   *      One of `template` or `templateUrl` is required.\n   *\n   *    - `templateUrl` – `{(string|Function)=}` – path or function that returns a path to an html\n   *      template that should be used by {@link ngRoute.directive:ngView ngView}.\n   *\n   *      If `templateUrl` is a function, it will be called with the following parameters:\n   *\n   *      - `{Array.<Object>}` - route parameters extracted from the current\n   *        `$location.path()` by applying the current route\n   *\n   *      One of `templateUrl` or `template` is required.\n   *\n   *    - `resolve` - `{Object.<string, Function>=}` - An optional map of dependencies which should\n   *      be injected into the controller. If any of these dependencies are promises, the router\n   *      will wait for them all to be resolved or one to be rejected before the controller is\n   *      instantiated.\n   *      If all the promises are resolved successfully, the values of the resolved promises are\n   *      injected and {@link ngRoute.$route#$routeChangeSuccess $routeChangeSuccess} event is\n   *      fired. If any of the promises are rejected the\n   *      {@link ngRoute.$route#$routeChangeError $routeChangeError} event is fired.\n   *      For easier access to the resolved dependencies from the template, the `resolve` map will\n   *      be available on the scope of the route, under `$resolve` (by default) or a custom name\n   *      specified by the `resolveAs` property (see below). This can be particularly useful, when\n   *      working with {@link angular.Module#component components} as route templates.<br />\n   *      <div class=\"alert alert-warning\">\n   *        **Note:** If your scope already contains a property with this name, it will be hidden\n   *        or overwritten. Make sure, you specify an appropriate name for this property, that\n   *        does not collide with other properties on the scope.\n   *      </div>\n   *      The map object is:\n   *\n   *      - `key` – `{string}`: a name of a dependency to be injected into the controller.\n   *      - `factory` - `{string|Function}`: If `string` then it is an alias for a service.\n   *        Otherwise if function, then it is {@link auto.$injector#invoke injected}\n   *        and the return value is treated as the dependency. If the result is a promise, it is\n   *        resolved before its value is injected into the controller. Be aware that\n   *        `ngRoute.$routeParams` will still refer to the previous route within these resolve\n   *        functions.  Use `$route.current.params` to access the new route parameters, instead.\n   *\n   *    - `resolveAs` - `{string=}` - The name under which the `resolve` map will be available on\n   *      the scope of the route. If omitted, defaults to `$resolve`.\n   *\n   *    - `redirectTo` – `{(string|Function)=}` – value to update\n   *      {@link ng.$location $location} path with and trigger route redirection.\n   *\n   *      If `redirectTo` is a function, it will be called with the following parameters:\n   *\n   *      - `{Object.<string>}` - route parameters extracted from the current\n   *        `$location.path()` by applying the current route templateUrl.\n   *      - `{string}` - current `$location.path()`\n   *      - `{Object}` - current `$location.search()`\n   *\n   *      The custom `redirectTo` function is expected to return a string which will be used\n   *      to update `$location.url()`. If the function throws an error, no further processing will\n   *      take place and the {@link ngRoute.$route#$routeChangeError $routeChangeError} event will\n   *      be fired.\n   *\n   *      Routes that specify `redirectTo` will not have their controllers, template functions\n   *      or resolves called, the `$location` will be changed to the redirect url and route\n   *      processing will stop. The exception to this is if the `redirectTo` is a function that\n   *      returns `undefined`. In this case the route transition occurs as though there was no\n   *      redirection.\n   *\n   *    - `resolveRedirectTo` – `{Function=}` – a function that will (eventually) return the value\n   *      to update {@link ng.$location $location} URL with and trigger route redirection. In\n   *      contrast to `redirectTo`, dependencies can be injected into `resolveRedirectTo` and the\n   *      return value can be either a string or a promise that will be resolved to a string.\n   *\n   *      Similar to `redirectTo`, if the return value is `undefined` (or a promise that gets\n   *      resolved to `undefined`), no redirection takes place and the route transition occurs as\n   *      though there was no redirection.\n   *\n   *      If the function throws an error or the returned promise gets rejected, no further\n   *      processing will take place and the\n   *      {@link ngRoute.$route#$routeChangeError $routeChangeError} event will be fired.\n   *\n   *      `redirectTo` takes precedence over `resolveRedirectTo`, so specifying both on the same\n   *      route definition, will cause the latter to be ignored.\n   *\n   *    - `[reloadOnUrl=true]` - `{boolean=}` - reload route when any part of the URL changes\n   *      (including the path) even if the new URL maps to the same route.\n   *\n   *      If the option is set to `false` and the URL in the browser changes, but the new URL maps\n   *      to the same route, then a `$routeUpdate` event is broadcasted on the root scope (without\n   *      reloading the route).\n   *\n   *    - `[reloadOnSearch=true]` - `{boolean=}` - reload route when only `$location.search()`\n   *      or `$location.hash()` changes.\n   *\n   *      If the option is set to `false` and the URL in the browser changes, then a `$routeUpdate`\n   *      event is broadcasted on the root scope (without reloading the route).\n   *\n   *      <div class=\"alert alert-warning\">\n   *        **Note:** This option has no effect if `reloadOnUrl` is set to `false`.\n   *      </div>\n   *\n   *    - `[caseInsensitiveMatch=false]` - `{boolean=}` - match routes without being case sensitive\n   *\n   *      If the option is set to `true`, then the particular route can be matched without being\n   *      case sensitive\n   *\n   * @returns {Object} self\n   *\n   * @description\n   * Adds a new route definition to the `$route` service.\n   */\n  this.when = function(path, route) {\n    //copy original route object to preserve params inherited from proto chain\n    var routeCopy = shallowCopy(route);\n    if (angular.isUndefined(routeCopy.reloadOnUrl)) {\n      routeCopy.reloadOnUrl = true;\n    }\n    if (angular.isUndefined(routeCopy.reloadOnSearch)) {\n      routeCopy.reloadOnSearch = true;\n    }\n    if (angular.isUndefined(routeCopy.caseInsensitiveMatch)) {\n      routeCopy.caseInsensitiveMatch = this.caseInsensitiveMatch;\n    }\n    routes[path] = angular.extend(\n      routeCopy,\n      {originalPath: path},\n      path && routeToRegExp(path, routeCopy)\n    );\n\n    // create redirection for trailing slashes\n    if (path) {\n      var redirectPath = (path[path.length - 1] === '/')\n            ? path.substr(0, path.length - 1)\n            : path + '/';\n\n      routes[redirectPath] = angular.extend(\n        {originalPath: path, redirectTo: path},\n        routeToRegExp(redirectPath, routeCopy)\n      );\n    }\n\n    return this;\n  };\n\n  /**\n   * @ngdoc property\n   * @name $routeProvider#caseInsensitiveMatch\n   * @description\n   *\n   * A boolean property indicating if routes defined\n   * using this provider should be matched using a case insensitive\n   * algorithm. Defaults to `false`.\n   */\n  this.caseInsensitiveMatch = false;\n\n  /**\n   * @ngdoc method\n   * @name $routeProvider#otherwise\n   *\n   * @description\n   * Sets route definition that will be used on route change when no other route definition\n   * is matched.\n   *\n   * @param {Object|string} params Mapping information to be assigned to `$route.current`.\n   * If called with a string, the value maps to `redirectTo`.\n   * @returns {Object} self\n   */\n  this.otherwise = function(params) {\n    if (typeof params === 'string') {\n      params = {redirectTo: params};\n    }\n    this.when(null, params);\n    return this;\n  };\n\n  /**\n   * @ngdoc method\n   * @name $routeProvider#eagerInstantiationEnabled\n   * @kind function\n   *\n   * @description\n   * Call this method as a setter to enable/disable eager instantiation of the\n   * {@link ngRoute.$route $route} service upon application bootstrap. You can also call it as a\n   * getter (i.e. without any arguments) to get the current value of the\n   * `eagerInstantiationEnabled` flag.\n   *\n   * Instantiating `$route` early is necessary for capturing the initial\n   * {@link ng.$location#$locationChangeStart $locationChangeStart} event and navigating to the\n   * appropriate route. Usually, `$route` is instantiated in time by the\n   * {@link ngRoute.ngView ngView} directive. Yet, in cases where `ngView` is included in an\n   * asynchronously loaded template (e.g. in another directive's template), the directive factory\n   * might not be called soon enough for `$route` to be instantiated _before_ the initial\n   * `$locationChangeSuccess` event is fired. Eager instantiation ensures that `$route` is always\n   * instantiated in time, regardless of when `ngView` will be loaded.\n   *\n   * The default value is true.\n   *\n   * **Note**:<br />\n   * You may want to disable the default behavior when unit-testing modules that depend on\n   * `ngRoute`, in order to avoid an unexpected request for the default route's template.\n   *\n   * @param {boolean=} enabled - If provided, update the internal `eagerInstantiationEnabled` flag.\n   *\n   * @returns {*} The current value of the `eagerInstantiationEnabled` flag if used as a getter or\n   *     itself (for chaining) if used as a setter.\n   */\n  isEagerInstantiationEnabled = true;\n  this.eagerInstantiationEnabled = function eagerInstantiationEnabled(enabled) {\n    if (isDefined(enabled)) {\n      isEagerInstantiationEnabled = enabled;\n      return this;\n    }\n\n    return isEagerInstantiationEnabled;\n  };\n\n\n  this.$get = ['$rootScope',\n               '$location',\n               '$routeParams',\n               '$q',\n               '$injector',\n               '$templateRequest',\n               '$sce',\n               '$browser',\n      function($rootScope, $location, $routeParams, $q, $injector, $templateRequest, $sce, $browser) {\n\n    /**\n     * @ngdoc service\n     * @name $route\n     * @requires $location\n     * @requires $routeParams\n     *\n     * @property {Object} current Reference to the current route definition.\n     * The route definition contains:\n     *\n     *   - `controller`: The controller constructor as defined in the route definition.\n     *   - `locals`: A map of locals which is used by {@link ng.$controller $controller} service for\n     *     controller instantiation. The `locals` contain\n     *     the resolved values of the `resolve` map. Additionally the `locals` also contain:\n     *\n     *     - `$scope` - The current route scope.\n     *     - `$template` - The current route template HTML.\n     *\n     *     The `locals` will be assigned to the route scope's `$resolve` property. You can override\n     *     the property name, using `resolveAs` in the route definition. See\n     *     {@link ngRoute.$routeProvider $routeProvider} for more info.\n     *\n     * @property {Object} routes Object with all route configuration Objects as its properties.\n     *\n     * @description\n     * `$route` is used for deep-linking URLs to controllers and views (HTML partials).\n     * It watches `$location.url()` and tries to map the path to an existing route definition.\n     *\n     * Requires the {@link ngRoute `ngRoute`} module to be installed.\n     *\n     * You can define routes through {@link ngRoute.$routeProvider $routeProvider}'s API.\n     *\n     * The `$route` service is typically used in conjunction with the\n     * {@link ngRoute.directive:ngView `ngView`} directive and the\n     * {@link ngRoute.$routeParams `$routeParams`} service.\n     *\n     * @example\n     * This example shows how changing the URL hash causes the `$route` to match a route against the\n     * URL, and the `ngView` pulls in the partial.\n     *\n     * <example name=\"$route-service\" module=\"ngRouteExample\"\n     *          deps=\"angular-route.js\" fixBase=\"true\">\n     *   <file name=\"index.html\">\n     *     <div ng-controller=\"MainController\">\n     *       Choose:\n     *       <a href=\"Book/Moby\">Moby</a> |\n     *       <a href=\"Book/Moby/ch/1\">Moby: Ch1</a> |\n     *       <a href=\"Book/Gatsby\">Gatsby</a> |\n     *       <a href=\"Book/Gatsby/ch/4?key=value\">Gatsby: Ch4</a> |\n     *       <a href=\"Book/Scarlet\">Scarlet Letter</a><br/>\n     *\n     *       <div ng-view></div>\n     *\n     *       <hr />\n     *\n     *       <pre>$location.path() = {{$location.path()}}</pre>\n     *       <pre>$route.current.templateUrl = {{$route.current.templateUrl}}</pre>\n     *       <pre>$route.current.params = {{$route.current.params}}</pre>\n     *       <pre>$route.current.scope.name = {{$route.current.scope.name}}</pre>\n     *       <pre>$routeParams = {{$routeParams}}</pre>\n     *     </div>\n     *   </file>\n     *\n     *   <file name=\"book.html\">\n     *     controller: {{name}}<br />\n     *     Book Id: {{params.bookId}}<br />\n     *   </file>\n     *\n     *   <file name=\"chapter.html\">\n     *     controller: {{name}}<br />\n     *     Book Id: {{params.bookId}}<br />\n     *     Chapter Id: {{params.chapterId}}\n     *   </file>\n     *\n     *   <file name=\"script.js\">\n     *     angular.module('ngRouteExample', ['ngRoute'])\n     *\n     *      .controller('MainController', function($scope, $route, $routeParams, $location) {\n     *          $scope.$route = $route;\n     *          $scope.$location = $location;\n     *          $scope.$routeParams = $routeParams;\n     *      })\n     *\n     *      .controller('BookController', function($scope, $routeParams) {\n     *          $scope.name = 'BookController';\n     *          $scope.params = $routeParams;\n     *      })\n     *\n     *      .controller('ChapterController', function($scope, $routeParams) {\n     *          $scope.name = 'ChapterController';\n     *          $scope.params = $routeParams;\n     *      })\n     *\n     *     .config(function($routeProvider, $locationProvider) {\n     *       $routeProvider\n     *        .when('/Book/:bookId', {\n     *         templateUrl: 'book.html',\n     *         controller: 'BookController',\n     *         resolve: {\n     *           // I will cause a 1 second delay\n     *           delay: function($q, $timeout) {\n     *             var delay = $q.defer();\n     *             $timeout(delay.resolve, 1000);\n     *             return delay.promise;\n     *           }\n     *         }\n     *       })\n     *       .when('/Book/:bookId/ch/:chapterId', {\n     *         templateUrl: 'chapter.html',\n     *         controller: 'ChapterController'\n     *       });\n     *\n     *       // configure html5 to get links working on jsfiddle\n     *       $locationProvider.html5Mode(true);\n     *     });\n     *\n     *   </file>\n     *\n     *   <file name=\"protractor.js\" type=\"protractor\">\n     *     it('should load and compile correct template', function() {\n     *       element(by.linkText('Moby: Ch1')).click();\n     *       var content = element(by.css('[ng-view]')).getText();\n     *       expect(content).toMatch(/controller: ChapterController/);\n     *       expect(content).toMatch(/Book Id: Moby/);\n     *       expect(content).toMatch(/Chapter Id: 1/);\n     *\n     *       element(by.partialLinkText('Scarlet')).click();\n     *\n     *       content = element(by.css('[ng-view]')).getText();\n     *       expect(content).toMatch(/controller: BookController/);\n     *       expect(content).toMatch(/Book Id: Scarlet/);\n     *     });\n     *   </file>\n     * </example>\n     */\n\n    /**\n     * @ngdoc event\n     * @name $route#$routeChangeStart\n     * @eventType broadcast on root scope\n     * @description\n     * Broadcasted before a route change. At this  point the route services starts\n     * resolving all of the dependencies needed for the route change to occur.\n     * Typically this involves fetching the view template as well as any dependencies\n     * defined in `resolve` route property. Once  all of the dependencies are resolved\n     * `$routeChangeSuccess` is fired.\n     *\n     * The route change (and the `$location` change that triggered it) can be prevented\n     * by calling `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on}\n     * for more details about event object.\n     *\n     * @param {Object} angularEvent Synthetic event object.\n     * @param {Route} next Future route information.\n     * @param {Route} current Current route information.\n     */\n\n    /**\n     * @ngdoc event\n     * @name $route#$routeChangeSuccess\n     * @eventType broadcast on root scope\n     * @description\n     * Broadcasted after a route change has happened successfully.\n     * The `resolve` dependencies are now available in the `current.locals` property.\n     *\n     * {@link ngRoute.directive:ngView ngView} listens for the directive\n     * to instantiate the controller and render the view.\n     *\n     * @param {Object} angularEvent Synthetic event object.\n     * @param {Route} current Current route information.\n     * @param {Route|Undefined} previous Previous route information, or undefined if current is\n     * first route entered.\n     */\n\n    /**\n     * @ngdoc event\n     * @name $route#$routeChangeError\n     * @eventType broadcast on root scope\n     * @description\n     * Broadcasted if a redirection function fails or any redirection or resolve promises are\n     * rejected.\n     *\n     * @param {Object} angularEvent Synthetic event object\n     * @param {Route} current Current route information.\n     * @param {Route} previous Previous route information.\n     * @param {Route} rejection The thrown error or the rejection reason of the promise. Usually\n     * the rejection reason is the error that caused the promise to get rejected.\n     */\n\n    /**\n     * @ngdoc event\n     * @name $route#$routeUpdate\n     * @eventType broadcast on root scope\n     * @description\n     * Broadcasted if the same instance of a route (including template, controller instance,\n     * resolved dependencies, etc.) is being reused. This can happen if either `reloadOnSearch` or\n     * `reloadOnUrl` has been set to `false`.\n     *\n     * @param {Object} angularEvent Synthetic event object\n     * @param {Route} current Current/previous route information.\n     */\n\n    var forceReload = false,\n        preparedRoute,\n        preparedRouteIsUpdateOnly,\n        $route = {\n          routes: routes,\n\n          /**\n           * @ngdoc method\n           * @name $route#reload\n           *\n           * @description\n           * Causes `$route` service to reload the current route even if\n           * {@link ng.$location $location} hasn't changed.\n           *\n           * As a result of that, {@link ngRoute.directive:ngView ngView}\n           * creates new scope and reinstantiates the controller.\n           */\n          reload: function() {\n            forceReload = true;\n\n            var fakeLocationEvent = {\n              defaultPrevented: false,\n              preventDefault: function fakePreventDefault() {\n                this.defaultPrevented = true;\n                forceReload = false;\n              }\n            };\n\n            $rootScope.$evalAsync(function() {\n              prepareRoute(fakeLocationEvent);\n              if (!fakeLocationEvent.defaultPrevented) commitRoute();\n            });\n          },\n\n          /**\n           * @ngdoc method\n           * @name $route#updateParams\n           *\n           * @description\n           * Causes `$route` service to update the current URL, replacing\n           * current route parameters with those specified in `newParams`.\n           * Provided property names that match the route's path segment\n           * definitions will be interpolated into the location's path, while\n           * remaining properties will be treated as query params.\n           *\n           * @param {!Object<string, string>} newParams mapping of URL parameter names to values\n           */\n          updateParams: function(newParams) {\n            if (this.current && this.current.$$route) {\n              newParams = angular.extend({}, this.current.params, newParams);\n              $location.path(interpolate(this.current.$$route.originalPath, newParams));\n              // interpolate modifies newParams, only query params are left\n              $location.search(newParams);\n            } else {\n              throw $routeMinErr('norout', 'Tried updating route with no current route');\n            }\n          }\n        };\n\n    $rootScope.$on('$locationChangeStart', prepareRoute);\n    $rootScope.$on('$locationChangeSuccess', commitRoute);\n\n    return $route;\n\n    /////////////////////////////////////////////////////\n\n    /**\n     * @param on {string} current url\n     * @param route {Object} route regexp to match the url against\n     * @return {?Object}\n     *\n     * @description\n     * Check if the route matches the current url.\n     *\n     * Inspired by match in\n     * visionmedia/express/lib/router/router.js.\n     */\n    function switchRouteMatcher(on, route) {\n      var keys = route.keys,\n          params = {};\n\n      if (!route.regexp) return null;\n\n      var m = route.regexp.exec(on);\n      if (!m) return null;\n\n      for (var i = 1, len = m.length; i < len; ++i) {\n        var key = keys[i - 1];\n\n        var val = m[i];\n\n        if (key && val) {\n          params[key.name] = val;\n        }\n      }\n      return params;\n    }\n\n    function prepareRoute($locationEvent) {\n      var lastRoute = $route.current;\n\n      preparedRoute = parseRoute();\n      preparedRouteIsUpdateOnly = isNavigationUpdateOnly(preparedRoute, lastRoute);\n\n      if (!preparedRouteIsUpdateOnly && (lastRoute || preparedRoute)) {\n        if ($rootScope.$broadcast('$routeChangeStart', preparedRoute, lastRoute).defaultPrevented) {\n          if ($locationEvent) {\n            $locationEvent.preventDefault();\n          }\n        }\n      }\n    }\n\n    function commitRoute() {\n      var lastRoute = $route.current;\n      var nextRoute = preparedRoute;\n\n      if (preparedRouteIsUpdateOnly) {\n        lastRoute.params = nextRoute.params;\n        angular.copy(lastRoute.params, $routeParams);\n        $rootScope.$broadcast('$routeUpdate', lastRoute);\n      } else if (nextRoute || lastRoute) {\n        forceReload = false;\n        $route.current = nextRoute;\n\n        var nextRoutePromise = $q.resolve(nextRoute);\n\n        $browser.$$incOutstandingRequestCount('$route');\n\n        nextRoutePromise.\n          then(getRedirectionData).\n          then(handlePossibleRedirection).\n          then(function(keepProcessingRoute) {\n            return keepProcessingRoute && nextRoutePromise.\n              then(resolveLocals).\n              then(function(locals) {\n                // after route change\n                if (nextRoute === $route.current) {\n                  if (nextRoute) {\n                    nextRoute.locals = locals;\n                    angular.copy(nextRoute.params, $routeParams);\n                  }\n                  $rootScope.$broadcast('$routeChangeSuccess', nextRoute, lastRoute);\n                }\n              });\n          }).catch(function(error) {\n            if (nextRoute === $route.current) {\n              $rootScope.$broadcast('$routeChangeError', nextRoute, lastRoute, error);\n            }\n          }).finally(function() {\n            // Because `commitRoute()` is called from a `$rootScope.$evalAsync` block (see\n            // `$locationWatch`), this `$$completeOutstandingRequest()` call will not cause\n            // `outstandingRequestCount` to hit zero.  This is important in case we are redirecting\n            // to a new route which also requires some asynchronous work.\n\n            $browser.$$completeOutstandingRequest(noop, '$route');\n          });\n      }\n    }\n\n    function getRedirectionData(route) {\n      var data = {\n        route: route,\n        hasRedirection: false\n      };\n\n      if (route) {\n        if (route.redirectTo) {\n          if (angular.isString(route.redirectTo)) {\n            data.path = interpolate(route.redirectTo, route.params);\n            data.search = route.params;\n            data.hasRedirection = true;\n          } else {\n            var oldPath = $location.path();\n            var oldSearch = $location.search();\n            var newUrl = route.redirectTo(route.pathParams, oldPath, oldSearch);\n\n            if (angular.isDefined(newUrl)) {\n              data.url = newUrl;\n              data.hasRedirection = true;\n            }\n          }\n        } else if (route.resolveRedirectTo) {\n          return $q.\n            resolve($injector.invoke(route.resolveRedirectTo)).\n            then(function(newUrl) {\n              if (angular.isDefined(newUrl)) {\n                data.url = newUrl;\n                data.hasRedirection = true;\n              }\n\n              return data;\n            });\n        }\n      }\n\n      return data;\n    }\n\n    function handlePossibleRedirection(data) {\n      var keepProcessingRoute = true;\n\n      if (data.route !== $route.current) {\n        keepProcessingRoute = false;\n      } else if (data.hasRedirection) {\n        var oldUrl = $location.url();\n        var newUrl = data.url;\n\n        if (newUrl) {\n          $location.\n            url(newUrl).\n            replace();\n        } else {\n          newUrl = $location.\n            path(data.path).\n            search(data.search).\n            replace().\n            url();\n        }\n\n        if (newUrl !== oldUrl) {\n          // Exit out and don't process current next value,\n          // wait for next location change from redirect\n          keepProcessingRoute = false;\n        }\n      }\n\n      return keepProcessingRoute;\n    }\n\n    function resolveLocals(route) {\n      if (route) {\n        var locals = angular.extend({}, route.resolve);\n        angular.forEach(locals, function(value, key) {\n          locals[key] = angular.isString(value) ?\n              $injector.get(value) :\n              $injector.invoke(value, null, null, key);\n        });\n        var template = getTemplateFor(route);\n        if (angular.isDefined(template)) {\n          locals['$template'] = template;\n        }\n        return $q.all(locals);\n      }\n    }\n\n    function getTemplateFor(route) {\n      var template, templateUrl;\n      if (angular.isDefined(template = route.template)) {\n        if (angular.isFunction(template)) {\n          template = template(route.params);\n        }\n      } else if (angular.isDefined(templateUrl = route.templateUrl)) {\n        if (angular.isFunction(templateUrl)) {\n          templateUrl = templateUrl(route.params);\n        }\n        if (angular.isDefined(templateUrl)) {\n          route.loadedTemplateUrl = $sce.valueOf(templateUrl);\n          template = $templateRequest(templateUrl);\n        }\n      }\n      return template;\n    }\n\n    /**\n     * @returns {Object} the current active route, by matching it against the URL\n     */\n    function parseRoute() {\n      // Match a route\n      var params, match;\n      angular.forEach(routes, function(route, path) {\n        if (!match && (params = switchRouteMatcher($location.path(), route))) {\n          match = inherit(route, {\n            params: angular.extend({}, $location.search(), params),\n            pathParams: params});\n          match.$$route = route;\n        }\n      });\n      // No route matched; fallback to \"otherwise\" route\n      return match || routes[null] && inherit(routes[null], {params: {}, pathParams:{}});\n    }\n\n    /**\n     * @param {Object} newRoute - The new route configuration (as returned by `parseRoute()`).\n     * @param {Object} oldRoute - The previous route configuration (as returned by `parseRoute()`).\n     * @returns {boolean} Whether this is an \"update-only\" navigation, i.e. the URL maps to the same\n     *                    route and it can be reused (based on the config and the type of change).\n     */\n    function isNavigationUpdateOnly(newRoute, oldRoute) {\n      // IF this is not a forced reload\n      return !forceReload\n          // AND both `newRoute`/`oldRoute` are defined\n          && newRoute && oldRoute\n          // AND they map to the same Route Definition Object\n          && (newRoute.$$route === oldRoute.$$route)\n          // AND `reloadOnUrl` is disabled\n          && (!newRoute.reloadOnUrl\n              // OR `reloadOnSearch` is disabled\n              || (!newRoute.reloadOnSearch\n                  // AND both routes have the same path params\n                  && angular.equals(newRoute.pathParams, oldRoute.pathParams)\n              )\n          );\n    }\n\n    /**\n     * @returns {string} interpolation of the redirect path with the parameters\n     */\n    function interpolate(string, params) {\n      var result = [];\n      angular.forEach((string || '').split(':'), function(segment, i) {\n        if (i === 0) {\n          result.push(segment);\n        } else {\n          var segmentMatch = segment.match(/(\\w+)(?:[?*])?(.*)/);\n          var key = segmentMatch[1];\n          result.push(params[key]);\n          result.push(segmentMatch[2] || '');\n          delete params[key];\n        }\n      });\n      return result.join('');\n    }\n  }];\n}\n\ninstantiateRoute.$inject = ['$injector'];\nfunction instantiateRoute($injector) {\n  if (isEagerInstantiationEnabled) {\n    // Instantiate `$route`\n    $injector.get('$route');\n  }\n}\n\nngRouteModule.provider('$routeParams', $RouteParamsProvider);\n\n\n/**\n * @ngdoc service\n * @name $routeParams\n * @requires $route\n * @this\n *\n * @description\n * The `$routeParams` service allows you to retrieve the current set of route parameters.\n *\n * Requires the {@link ngRoute `ngRoute`} module to be installed.\n *\n * The route parameters are a combination of {@link ng.$location `$location`}'s\n * {@link ng.$location#search `search()`} and {@link ng.$location#path `path()`}.\n * The `path` parameters are extracted when the {@link ngRoute.$route `$route`} path is matched.\n *\n * In case of parameter name collision, `path` params take precedence over `search` params.\n *\n * The service guarantees that the identity of the `$routeParams` object will remain unchanged\n * (but its properties will likely change) even when a route change occurs.\n *\n * Note that the `$routeParams` are only updated *after* a route change completes successfully.\n * This means that you cannot rely on `$routeParams` being correct in route resolve functions.\n * Instead you can use `$route.current.params` to access the new route's parameters.\n *\n * @example\n * ```js\n *  // Given:\n *  // URL: http://server.com/index.html#/Chapter/1/Section/2?search=moby\n *  // Route: /Chapter/:chapterId/Section/:sectionId\n *  //\n *  // Then\n *  $routeParams ==> {chapterId:'1', sectionId:'2', search:'moby'}\n * ```\n */\nfunction $RouteParamsProvider() {\n  this.$get = function() { return {}; };\n}\n\nngRouteModule.directive('ngView', ngViewFactory);\nngRouteModule.directive('ngView', ngViewFillContentFactory);\n\n\n/**\n * @ngdoc directive\n * @name ngView\n * @restrict ECA\n *\n * @description\n * `ngView` is a directive that complements the {@link ngRoute.$route $route} service by\n * including the rendered template of the current route into the main layout (`index.html`) file.\n * Every time the current route changes, the included view changes with it according to the\n * configuration of the `$route` service.\n *\n * Requires the {@link ngRoute `ngRoute`} module to be installed.\n *\n * @animations\n * | Animation                        | Occurs                              |\n * |----------------------------------|-------------------------------------|\n * | {@link ng.$animate#enter enter}  | when the new element is inserted to the DOM |\n * | {@link ng.$animate#leave leave}  | when the old element is removed from to the DOM  |\n *\n * The enter and leave animation occur concurrently.\n *\n * @scope\n * @priority 400\n * @param {string=} onload Expression to evaluate whenever the view updates.\n *\n * @param {string=} autoscroll Whether `ngView` should call {@link ng.$anchorScroll\n *                  $anchorScroll} to scroll the viewport after the view is updated.\n *\n *                  - If the attribute is not set, disable scrolling.\n *                  - If the attribute is set without value, enable scrolling.\n *                  - Otherwise enable scrolling only if the `autoscroll` attribute value evaluated\n *                    as an expression yields a truthy value.\n * @example\n    <example name=\"ngView-directive\" module=\"ngViewExample\"\n             deps=\"angular-route.js;angular-animate.js\"\n             animations=\"true\" fixBase=\"true\">\n      <file name=\"index.html\">\n        <div ng-controller=\"MainCtrl as main\">\n          Choose:\n          <a href=\"Book/Moby\">Moby</a> |\n          <a href=\"Book/Moby/ch/1\">Moby: Ch1</a> |\n          <a href=\"Book/Gatsby\">Gatsby</a> |\n          <a href=\"Book/Gatsby/ch/4?key=value\">Gatsby: Ch4</a> |\n          <a href=\"Book/Scarlet\">Scarlet Letter</a><br/>\n\n          <div class=\"view-animate-container\">\n            <div ng-view class=\"view-animate\"></div>\n          </div>\n          <hr />\n\n          <pre>$location.path() = {{main.$location.path()}}</pre>\n          <pre>$route.current.templateUrl = {{main.$route.current.templateUrl}}</pre>\n          <pre>$route.current.params = {{main.$route.current.params}}</pre>\n          <pre>$routeParams = {{main.$routeParams}}</pre>\n        </div>\n      </file>\n\n      <file name=\"book.html\">\n        <div>\n          controller: {{book.name}}<br />\n          Book Id: {{book.params.bookId}}<br />\n        </div>\n      </file>\n\n      <file name=\"chapter.html\">\n        <div>\n          controller: {{chapter.name}}<br />\n          Book Id: {{chapter.params.bookId}}<br />\n          Chapter Id: {{chapter.params.chapterId}}\n        </div>\n      </file>\n\n      <file name=\"animations.css\">\n        .view-animate-container {\n          position:relative;\n          height:100px!important;\n          background:white;\n          border:1px solid black;\n          height:40px;\n          overflow:hidden;\n        }\n\n        .view-animate {\n          padding:10px;\n        }\n\n        .view-animate.ng-enter, .view-animate.ng-leave {\n          transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 1.5s;\n\n          display:block;\n          width:100%;\n          border-left:1px solid black;\n\n          position:absolute;\n          top:0;\n          left:0;\n          right:0;\n          bottom:0;\n          padding:10px;\n        }\n\n        .view-animate.ng-enter {\n          left:100%;\n        }\n        .view-animate.ng-enter.ng-enter-active {\n          left:0;\n        }\n        .view-animate.ng-leave.ng-leave-active {\n          left:-100%;\n        }\n      </file>\n\n      <file name=\"script.js\">\n        angular.module('ngViewExample', ['ngRoute', 'ngAnimate'])\n          .config(['$routeProvider', '$locationProvider',\n            function($routeProvider, $locationProvider) {\n              $routeProvider\n                .when('/Book/:bookId', {\n                  templateUrl: 'book.html',\n                  controller: 'BookCtrl',\n                  controllerAs: 'book'\n                })\n                .when('/Book/:bookId/ch/:chapterId', {\n                  templateUrl: 'chapter.html',\n                  controller: 'ChapterCtrl',\n                  controllerAs: 'chapter'\n                });\n\n              $locationProvider.html5Mode(true);\n          }])\n          .controller('MainCtrl', ['$route', '$routeParams', '$location',\n            function MainCtrl($route, $routeParams, $location) {\n              this.$route = $route;\n              this.$location = $location;\n              this.$routeParams = $routeParams;\n          }])\n          .controller('BookCtrl', ['$routeParams', function BookCtrl($routeParams) {\n            this.name = 'BookCtrl';\n            this.params = $routeParams;\n          }])\n          .controller('ChapterCtrl', ['$routeParams', function ChapterCtrl($routeParams) {\n            this.name = 'ChapterCtrl';\n            this.params = $routeParams;\n          }]);\n\n      </file>\n\n      <file name=\"protractor.js\" type=\"protractor\">\n        it('should load and compile correct template', function() {\n          element(by.linkText('Moby: Ch1')).click();\n          var content = element(by.css('[ng-view]')).getText();\n          expect(content).toMatch(/controller: ChapterCtrl/);\n          expect(content).toMatch(/Book Id: Moby/);\n          expect(content).toMatch(/Chapter Id: 1/);\n\n          element(by.partialLinkText('Scarlet')).click();\n\n          content = element(by.css('[ng-view]')).getText();\n          expect(content).toMatch(/controller: BookCtrl/);\n          expect(content).toMatch(/Book Id: Scarlet/);\n        });\n      </file>\n    </example>\n */\n\n\n/**\n * @ngdoc event\n * @name ngView#$viewContentLoaded\n * @eventType emit on the current ngView scope\n * @description\n * Emitted every time the ngView content is reloaded.\n */\nngViewFactory.$inject = ['$route', '$anchorScroll', '$animate'];\nfunction ngViewFactory($route, $anchorScroll, $animate) {\n  return {\n    restrict: 'ECA',\n    terminal: true,\n    priority: 400,\n    transclude: 'element',\n    link: function(scope, $element, attr, ctrl, $transclude) {\n        var currentScope,\n            currentElement,\n            previousLeaveAnimation,\n            autoScrollExp = attr.autoscroll,\n            onloadExp = attr.onload || '';\n\n        scope.$on('$routeChangeSuccess', update);\n        update();\n\n        function cleanupLastView() {\n          if (previousLeaveAnimation) {\n            $animate.cancel(previousLeaveAnimation);\n            previousLeaveAnimation = null;\n          }\n\n          if (currentScope) {\n            currentScope.$destroy();\n            currentScope = null;\n          }\n          if (currentElement) {\n            previousLeaveAnimation = $animate.leave(currentElement);\n            previousLeaveAnimation.done(function(response) {\n              if (response !== false) previousLeaveAnimation = null;\n            });\n            currentElement = null;\n          }\n        }\n\n        function update() {\n          var locals = $route.current && $route.current.locals,\n              template = locals && locals.$template;\n\n          if (angular.isDefined(template)) {\n            var newScope = scope.$new();\n            var current = $route.current;\n\n            // Note: This will also link all children of ng-view that were contained in the original\n            // html. If that content contains controllers, ... they could pollute/change the scope.\n            // However, using ng-view on an element with additional content does not make sense...\n            // Note: We can't remove them in the cloneAttchFn of $transclude as that\n            // function is called before linking the content, which would apply child\n            // directives to non existing elements.\n            var clone = $transclude(newScope, function(clone) {\n              $animate.enter(clone, null, currentElement || $element).done(function onNgViewEnter(response) {\n                if (response !== false && angular.isDefined(autoScrollExp)\n                  && (!autoScrollExp || scope.$eval(autoScrollExp))) {\n                  $anchorScroll();\n                }\n              });\n              cleanupLastView();\n            });\n\n            currentElement = clone;\n            currentScope = current.scope = newScope;\n            currentScope.$emit('$viewContentLoaded');\n            currentScope.$eval(onloadExp);\n          } else {\n            cleanupLastView();\n          }\n        }\n    }\n  };\n}\n\n// This directive is called during the $transclude call of the first `ngView` directive.\n// It will replace and compile the content of the element with the loaded template.\n// We need this directive so that the element content is already filled when\n// the link function of another directive on the same element as ngView\n// is called.\nngViewFillContentFactory.$inject = ['$compile', '$controller', '$route'];\nfunction ngViewFillContentFactory($compile, $controller, $route) {\n  return {\n    restrict: 'ECA',\n    priority: -400,\n    link: function(scope, $element) {\n      var current = $route.current,\n          locals = current.locals;\n\n      $element.html(locals.$template);\n\n      var link = $compile($element.contents());\n\n      if (current.controller) {\n        locals.$scope = scope;\n        var controller = $controller(current.controller, locals);\n        if (current.controllerAs) {\n          scope[current.controllerAs] = controller;\n        }\n        $element.data('$ngControllerController', controller);\n        $element.children().data('$ngControllerController', controller);\n      }\n      scope[current.resolveAs || '$resolve'] = locals;\n\n      link(scope);\n    }\n  };\n}\n\n\n})(window, window.angular);\n\n/**\n * @license AngularJS v1.8.3\n * (c) 2010-2020 Google LLC. http://angularjs.org\n * License: MIT\n */\n(function(window, angular) {'use strict';\n\n/**\n * @ngdoc module\n * @name ngAria\n * @description\n *\n * The `ngAria` module provides support for common\n * [<abbr title=\"Accessible Rich Internet Applications\">ARIA</abbr>](http://www.w3.org/TR/wai-aria/)\n * attributes that convey state or semantic information about the application for users\n * of assistive technologies, such as screen readers.\n *\n * ## Usage\n *\n * For ngAria to do its magic, simply include the module `ngAria` as a dependency. The following\n * directives are supported:\n * `ngModel`, `ngChecked`, `ngReadonly`, `ngRequired`, `ngValue`, `ngDisabled`, `ngShow`, `ngHide`,\n * `ngClick`, `ngDblClick`, and `ngMessages`.\n *\n * Below is a more detailed breakdown of the attributes handled by ngAria:\n *\n * | Directive                                   | Supported Attributes                                                                                |\n * |---------------------------------------------|-----------------------------------------------------------------------------------------------------|\n * | {@link ng.directive:ngModel ngModel}        | aria-checked, aria-valuemin, aria-valuemax, aria-valuenow, aria-invalid, aria-required, input roles |\n * | {@link ng.directive:ngDisabled ngDisabled}  | aria-disabled                                                                                       |\n * | {@link ng.directive:ngRequired ngRequired}  | aria-required                                                                                       |\n * | {@link ng.directive:ngChecked ngChecked}    | aria-checked                                                                                        |\n * | {@link ng.directive:ngReadonly ngReadonly}  | aria-readonly                                                                                       |\n * | {@link ng.directive:ngValue ngValue}        | aria-checked                                                                                        |\n * | {@link ng.directive:ngShow ngShow}          | aria-hidden                                                                                         |\n * | {@link ng.directive:ngHide ngHide}          | aria-hidden                                                                                         |\n * | {@link ng.directive:ngDblclick ngDblclick}  | tabindex                                                                                            |\n * | {@link module:ngMessages ngMessages}        | aria-live                                                                                           |\n * | {@link ng.directive:ngClick ngClick}        | tabindex, keydown event, button role                                                                |\n *\n * Find out more information about each directive by reading the\n * {@link guide/accessibility ngAria Developer Guide}.\n *\n * ## Example\n * Using ngDisabled with ngAria:\n * ```html\n * <md-checkbox ng-disabled=\"disabled\">\n * ```\n * Becomes:\n * ```html\n * <md-checkbox ng-disabled=\"disabled\" aria-disabled=\"true\">\n * ```\n *\n * ## Disabling Specific Attributes\n * It is possible to disable individual attributes added by ngAria with the\n * {@link ngAria.$ariaProvider#config config} method. For more details, see the\n * {@link guide/accessibility Developer Guide}.\n *\n * ## Disabling `ngAria` on Specific Elements\n * It is possible to make `ngAria` ignore a specific element, by adding the `ng-aria-disable`\n * attribute on it. Note that only the element itself (and not its child elements) will be ignored.\n */\nvar ARIA_DISABLE_ATTR = 'ngAriaDisable';\n\nvar ngAriaModule = angular.module('ngAria', ['ng']).\n                        info({ angularVersion: '1.8.3' }).\n                        provider('$aria', $AriaProvider);\n\n/**\n* Internal Utilities\n*/\nvar nativeAriaNodeNames = ['BUTTON', 'A', 'INPUT', 'TEXTAREA', 'SELECT', 'DETAILS', 'SUMMARY'];\n\nvar isNodeOneOf = function(elem, nodeTypeArray) {\n  if (nodeTypeArray.indexOf(elem[0].nodeName) !== -1) {\n    return true;\n  }\n};\n/**\n * @ngdoc provider\n * @name $ariaProvider\n * @this\n *\n * @description\n *\n * Used for configuring the ARIA attributes injected and managed by ngAria.\n *\n * ```js\n * angular.module('myApp', ['ngAria'], function config($ariaProvider) {\n *   $ariaProvider.config({\n *     ariaValue: true,\n *     tabindex: false\n *   });\n * });\n *```\n *\n * ## Dependencies\n * Requires the {@link ngAria} module to be installed.\n *\n */\nfunction $AriaProvider() {\n  var config = {\n    ariaHidden: true,\n    ariaChecked: true,\n    ariaReadonly: true,\n    ariaDisabled: true,\n    ariaRequired: true,\n    ariaInvalid: true,\n    ariaValue: true,\n    tabindex: true,\n    bindKeydown: true,\n    bindRoleForClick: true\n  };\n\n  /**\n   * @ngdoc method\n   * @name $ariaProvider#config\n   *\n   * @param {object} config object to enable/disable specific ARIA attributes\n   *\n   *  - **ariaHidden** – `{boolean}` – Enables/disables aria-hidden tags\n   *  - **ariaChecked** – `{boolean}` – Enables/disables aria-checked tags\n   *  - **ariaReadonly** – `{boolean}` – Enables/disables aria-readonly tags\n   *  - **ariaDisabled** – `{boolean}` – Enables/disables aria-disabled tags\n   *  - **ariaRequired** – `{boolean}` – Enables/disables aria-required tags\n   *  - **ariaInvalid** – `{boolean}` – Enables/disables aria-invalid tags\n   *  - **ariaValue** – `{boolean}` – Enables/disables aria-valuemin, aria-valuemax and\n   *    aria-valuenow tags\n   *  - **tabindex** – `{boolean}` – Enables/disables tabindex tags\n   *  - **bindKeydown** – `{boolean}` – Enables/disables keyboard event binding on non-interactive\n   *    elements (such as `div` or `li`) using ng-click, making them more accessible to users of\n   *    assistive technologies\n   *  - **bindRoleForClick** – `{boolean}` – Adds role=button to non-interactive elements (such as\n   *    `div` or `li`) using ng-click, making them more accessible to users of assistive\n   *    technologies\n   *\n   * @description\n   * Enables/disables various ARIA attributes\n   */\n  this.config = function(newConfig) {\n    config = angular.extend(config, newConfig);\n  };\n\n  function watchExpr(attrName, ariaAttr, nativeAriaNodeNames, negate) {\n    return function(scope, elem, attr) {\n      if (attr.hasOwnProperty(ARIA_DISABLE_ATTR)) return;\n\n      var ariaCamelName = attr.$normalize(ariaAttr);\n      if (config[ariaCamelName] && !isNodeOneOf(elem, nativeAriaNodeNames) && !attr[ariaCamelName]) {\n        scope.$watch(attr[attrName], function(boolVal) {\n          // ensure boolean value\n          boolVal = negate ? !boolVal : !!boolVal;\n          elem.attr(ariaAttr, boolVal);\n        });\n      }\n    };\n  }\n  /**\n   * @ngdoc service\n   * @name $aria\n   *\n   * @description\n   *\n   * The $aria service contains helper methods for applying common\n   * [ARIA](http://www.w3.org/TR/wai-aria/) attributes to HTML directives.\n   *\n   * ngAria injects common accessibility attributes that tell assistive technologies when HTML\n   * elements are enabled, selected, hidden, and more. To see how this is performed with ngAria,\n   * let's review a code snippet from ngAria itself:\n   *\n   *```js\n   * ngAriaModule.directive('ngDisabled', ['$aria', function($aria) {\n   *   return $aria.$$watchExpr('ngDisabled', 'aria-disabled', nativeAriaNodeNames, false);\n   * }])\n   *```\n   * Shown above, the ngAria module creates a directive with the same signature as the\n   * traditional `ng-disabled` directive. But this ngAria version is dedicated to\n   * solely managing accessibility attributes on custom elements. The internal `$aria` service is\n   * used to watch the boolean attribute `ngDisabled`. If it has not been explicitly set by the\n   * developer, `aria-disabled` is injected as an attribute with its value synchronized to the\n   * value in `ngDisabled`.\n   *\n   * Because ngAria hooks into the `ng-disabled` directive, developers do not have to do\n   * anything to enable this feature. The `aria-disabled` attribute is automatically managed\n   * simply as a silent side-effect of using `ng-disabled` with the ngAria module.\n   *\n   * The full list of directives that interface with ngAria:\n   * * **ngModel**\n   * * **ngChecked**\n   * * **ngReadonly**\n   * * **ngRequired**\n   * * **ngDisabled**\n   * * **ngValue**\n   * * **ngShow**\n   * * **ngHide**\n   * * **ngClick**\n   * * **ngDblclick**\n   * * **ngMessages**\n   *\n   * Read the {@link guide/accessibility ngAria Developer Guide} for a thorough explanation of each\n   * directive.\n   *\n   *\n   * ## Dependencies\n   * Requires the {@link ngAria} module to be installed.\n   */\n  this.$get = function() {\n    return {\n      config: function(key) {\n        return config[key];\n      },\n      $$watchExpr: watchExpr\n    };\n  };\n}\n\n\nngAriaModule.directive('ngShow', ['$aria', function($aria) {\n  return $aria.$$watchExpr('ngShow', 'aria-hidden', [], true);\n}])\n.directive('ngHide', ['$aria', function($aria) {\n  return $aria.$$watchExpr('ngHide', 'aria-hidden', [], false);\n}])\n.directive('ngValue', ['$aria', function($aria) {\n  return $aria.$$watchExpr('ngValue', 'aria-checked', nativeAriaNodeNames, false);\n}])\n.directive('ngChecked', ['$aria', function($aria) {\n  return $aria.$$watchExpr('ngChecked', 'aria-checked', nativeAriaNodeNames, false);\n}])\n.directive('ngReadonly', ['$aria', function($aria) {\n  return $aria.$$watchExpr('ngReadonly', 'aria-readonly', nativeAriaNodeNames, false);\n}])\n.directive('ngRequired', ['$aria', function($aria) {\n  return $aria.$$watchExpr('ngRequired', 'aria-required', nativeAriaNodeNames, false);\n}])\n.directive('ngModel', ['$aria', function($aria) {\n\n  function shouldAttachAttr(attr, normalizedAttr, elem, allowNonAriaNodes) {\n    return $aria.config(normalizedAttr) &&\n      !elem.attr(attr) &&\n      (allowNonAriaNodes || !isNodeOneOf(elem, nativeAriaNodeNames)) &&\n      (elem.attr('type') !== 'hidden' || elem[0].nodeName !== 'INPUT');\n  }\n\n  function shouldAttachRole(role, elem) {\n    // if element does not have role attribute\n    // AND element type is equal to role (if custom element has a type equaling shape) <-- remove?\n    // AND element is not in nativeAriaNodeNames\n    return !elem.attr('role') && (elem.attr('type') === role) && !isNodeOneOf(elem, nativeAriaNodeNames);\n  }\n\n  function getShape(attr, elem) {\n    var type = attr.type,\n        role = attr.role;\n\n    return ((type || role) === 'checkbox' || role === 'menuitemcheckbox') ? 'checkbox' :\n           ((type || role) === 'radio'    || role === 'menuitemradio') ? 'radio' :\n           (type === 'range'              || role === 'progressbar' || role === 'slider') ? 'range' : '';\n  }\n\n  return {\n    restrict: 'A',\n    require: 'ngModel',\n    priority: 200, //Make sure watches are fired after any other directives that affect the ngModel value\n    compile: function(elem, attr) {\n      if (attr.hasOwnProperty(ARIA_DISABLE_ATTR)) return;\n\n      var shape = getShape(attr, elem);\n\n      return {\n        post: function(scope, elem, attr, ngModel) {\n          var needsTabIndex = shouldAttachAttr('tabindex', 'tabindex', elem, false);\n\n          function ngAriaWatchModelValue() {\n            return ngModel.$modelValue;\n          }\n\n          function getRadioReaction(newVal) {\n            // Strict comparison would cause a BC\n            // eslint-disable-next-line eqeqeq\n            var boolVal = (attr.value == ngModel.$viewValue);\n            elem.attr('aria-checked', boolVal);\n          }\n\n          function getCheckboxReaction() {\n            elem.attr('aria-checked', !ngModel.$isEmpty(ngModel.$viewValue));\n          }\n\n          switch (shape) {\n            case 'radio':\n            case 'checkbox':\n              if (shouldAttachRole(shape, elem)) {\n                elem.attr('role', shape);\n              }\n              if (shouldAttachAttr('aria-checked', 'ariaChecked', elem, false)) {\n                scope.$watch(ngAriaWatchModelValue, shape === 'radio' ?\n                    getRadioReaction : getCheckboxReaction);\n              }\n              if (needsTabIndex) {\n                elem.attr('tabindex', 0);\n              }\n              break;\n            case 'range':\n              if (shouldAttachRole(shape, elem)) {\n                elem.attr('role', 'slider');\n              }\n              if ($aria.config('ariaValue')) {\n                var needsAriaValuemin = !elem.attr('aria-valuemin') &&\n                    (attr.hasOwnProperty('min') || attr.hasOwnProperty('ngMin'));\n                var needsAriaValuemax = !elem.attr('aria-valuemax') &&\n                    (attr.hasOwnProperty('max') || attr.hasOwnProperty('ngMax'));\n                var needsAriaValuenow = !elem.attr('aria-valuenow');\n\n                if (needsAriaValuemin) {\n                  attr.$observe('min', function ngAriaValueMinReaction(newVal) {\n                    elem.attr('aria-valuemin', newVal);\n                  });\n                }\n                if (needsAriaValuemax) {\n                  attr.$observe('max', function ngAriaValueMinReaction(newVal) {\n                    elem.attr('aria-valuemax', newVal);\n                  });\n                }\n                if (needsAriaValuenow) {\n                  scope.$watch(ngAriaWatchModelValue, function ngAriaValueNowReaction(newVal) {\n                    elem.attr('aria-valuenow', newVal);\n                  });\n                }\n              }\n              if (needsTabIndex) {\n                elem.attr('tabindex', 0);\n              }\n              break;\n          }\n\n          if (!attr.hasOwnProperty('ngRequired') && ngModel.$validators.required\n            && shouldAttachAttr('aria-required', 'ariaRequired', elem, false)) {\n            // ngModel.$error.required is undefined on custom controls\n            attr.$observe('required', function() {\n              elem.attr('aria-required', !!attr['required']);\n            });\n          }\n\n          if (shouldAttachAttr('aria-invalid', 'ariaInvalid', elem, true)) {\n            scope.$watch(function ngAriaInvalidWatch() {\n              return ngModel.$invalid;\n            }, function ngAriaInvalidReaction(newVal) {\n              elem.attr('aria-invalid', !!newVal);\n            });\n          }\n        }\n      };\n    }\n  };\n}])\n.directive('ngDisabled', ['$aria', function($aria) {\n  return $aria.$$watchExpr('ngDisabled', 'aria-disabled', nativeAriaNodeNames, false);\n}])\n.directive('ngMessages', function() {\n  return {\n    restrict: 'A',\n    require: '?ngMessages',\n    link: function(scope, elem, attr, ngMessages) {\n      if (attr.hasOwnProperty(ARIA_DISABLE_ATTR)) return;\n\n      if (!elem.attr('aria-live')) {\n        elem.attr('aria-live', 'assertive');\n      }\n    }\n  };\n})\n.directive('ngClick',['$aria', '$parse', function($aria, $parse) {\n  return {\n    restrict: 'A',\n    compile: function(elem, attr) {\n      if (attr.hasOwnProperty(ARIA_DISABLE_ATTR)) return;\n\n      var fn = $parse(attr.ngClick);\n      return function(scope, elem, attr) {\n\n        if (!isNodeOneOf(elem, nativeAriaNodeNames)) {\n\n          if ($aria.config('bindRoleForClick') && !elem.attr('role')) {\n            elem.attr('role', 'button');\n          }\n\n          if ($aria.config('tabindex') && !elem.attr('tabindex')) {\n            elem.attr('tabindex', 0);\n          }\n\n          if ($aria.config('bindKeydown') && !attr.ngKeydown && !attr.ngKeypress && !attr.ngKeyup) {\n            elem.on('keydown', function(event) {\n              var keyCode = event.which || event.keyCode;\n\n              if (keyCode === 13 || keyCode === 32) {\n                // If the event is triggered on a non-interactive element ...\n                if (nativeAriaNodeNames.indexOf(event.target.nodeName) === -1 && !event.target.isContentEditable) {\n                  // ... prevent the default browser behavior (e.g. scrolling when pressing spacebar)\n                  // See https://github.com/angular/angular.js/issues/16664\n                  event.preventDefault();\n                }\n                scope.$apply(callback);\n              }\n\n              function callback() {\n                fn(scope, { $event: event });\n              }\n            });\n          }\n        }\n      };\n    }\n  };\n}])\n.directive('ngDblclick', ['$aria', function($aria) {\n  return function(scope, elem, attr) {\n    if (attr.hasOwnProperty(ARIA_DISABLE_ATTR)) return;\n\n    if ($aria.config('tabindex') && !elem.attr('tabindex') && !isNodeOneOf(elem, nativeAriaNodeNames)) {\n      elem.attr('tabindex', 0);\n    }\n  };\n}]);\n\n\n})(window, window.angular);\n\n/**\n * @license AngularJS v1.8.3\n * (c) 2010-2020 Google LLC. http://angularjs.org\n * License: MIT\n */\n(function(window, angular) {'use strict';\n\nvar forEach;\nvar isArray;\nvar isString;\nvar jqLite;\n\n/**\n * @ngdoc module\n * @name ngMessages\n * @description\n *\n * The `ngMessages` module provides enhanced support for displaying messages within templates\n * (typically within forms or when rendering message objects that return key/value data).\n * Instead of relying on JavaScript code and/or complex ng-if statements within your form template to\n * show and hide error messages specific to the state of an input field, the `ngMessages` and\n * `ngMessage` directives are designed to handle the complexity, inheritance and priority\n * sequencing based on the order of how the messages are defined in the template.\n *\n * Currently, the ngMessages module only contains the code for the `ngMessages`, `ngMessagesInclude`\n * `ngMessage`, `ngMessageExp` and `ngMessageDefault` directives.\n *\n * ## Usage\n * The `ngMessages` directive allows keys in a key/value collection to be associated with a child element\n * (or 'message') that will show or hide based on the truthiness of that key's value in the collection. A common use\n * case for `ngMessages` is to display error messages for inputs using the `$error` object exposed by the\n * {@link ngModel ngModel} directive.\n *\n * The child elements of the `ngMessages` directive are matched to the collection keys by a `ngMessage` or\n * `ngMessageExp` directive. The value of these attributes must match a key in the collection that is provided by\n * the `ngMessages` directive.\n *\n * Consider the following example, which illustrates a typical use case of `ngMessages`. Within the form `myForm` we\n * have a text input named `myField` which is bound to the scope variable `field` using the {@link ngModel ngModel}\n * directive.\n *\n * The `myField` field is a required input of type `email` with a maximum length of 15 characters.\n *\n * ```html\n * <form name=\"myForm\">\n *   <label>\n *     Enter text:\n *     <input type=\"email\" ng-model=\"field\" name=\"myField\" required maxlength=\"15\" />\n *   </label>\n *   <div ng-messages=\"myForm.myField.$error\" role=\"alert\">\n *     <div ng-message=\"required\">Please enter a value for this field.</div>\n *     <div ng-message=\"email\">This field must be a valid email address.</div>\n *     <div ng-message=\"maxlength\">This field can be at most 15 characters long.</div>\n *   </div>\n * </form>\n * ```\n *\n * In order to show error messages corresponding to `myField` we first create an element with an `ngMessages` attribute\n * set to the `$error` object owned by the `myField` input in our `myForm` form.\n *\n * Within this element we then create separate elements for each of the possible errors that `myField` could have.\n * The `ngMessage` attribute is used to declare which element(s) will appear for which error - for example,\n * setting `ng-message=\"required\"` specifies that this particular element should be displayed when there\n * is no value present for the required field `myField` (because the key `required` will be `true` in the object\n * `myForm.myField.$error`).\n *\n * ### Message order\n *\n * By default, `ngMessages` will only display one message for a particular key/value collection at any time. If more\n * than one message (or error) key is currently true, then which message is shown is determined by the order of messages\n * in the HTML template code (messages declared first are prioritised). This mechanism means the developer does not have\n * to prioritize messages using custom JavaScript code.\n *\n * Given the following error object for our example (which informs us that the field `myField` currently has both the\n * `required` and `email` errors):\n *\n * ```javascript\n * <!-- keep in mind that ngModel automatically sets these error flags -->\n * myField.$error = { required : true, email: true, maxlength: false };\n * ```\n * The `required` message will be displayed to the user since it appears before the `email` message in the DOM.\n * Once the user types a single character, the `required` message will disappear (since the field now has a value)\n * but the `email` message will be visible because it is still applicable.\n *\n * ### Displaying multiple messages at the same time\n *\n * While `ngMessages` will by default only display one error element at a time, the `ng-messages-multiple` attribute can\n * be applied to the `ngMessages` container element to cause it to display all applicable error messages at once:\n *\n * ```html\n * <!-- attribute-style usage -->\n * <div ng-messages=\"myForm.myField.$error\" ng-messages-multiple>...</div>\n *\n * <!-- element-style usage -->\n * <ng-messages for=\"myForm.myField.$error\" multiple>...</ng-messages>\n * ```\n *\n * ## Reusing and Overriding Messages\n * In addition to prioritization, ngMessages also allows for including messages from a remote or an inline\n * template. This allows for generic collection of messages to be reused across multiple parts of an\n * application.\n *\n * ```html\n * <script type=\"text/ng-template\" id=\"error-messages\">\n *   <div ng-message=\"required\">This field is required</div>\n *   <div ng-message=\"minlength\">This field is too short</div>\n * </script>\n *\n * <div ng-messages=\"myForm.myField.$error\" role=\"alert\">\n *   <div ng-messages-include=\"error-messages\"></div>\n * </div>\n * ```\n *\n * However, including generic messages may not be useful enough to match all input fields, therefore,\n * `ngMessages` provides the ability to override messages defined in the remote template by redefining\n * them within the directive container.\n *\n * ```html\n * <!-- a generic template of error messages known as \"my-custom-messages\" -->\n * <script type=\"text/ng-template\" id=\"my-custom-messages\">\n *   <div ng-message=\"required\">This field is required</div>\n *   <div ng-message=\"minlength\">This field is too short</div>\n * </script>\n *\n * <form name=\"myForm\">\n *   <label>\n *     Email address\n *     <input type=\"email\"\n *            id=\"email\"\n *            name=\"myEmail\"\n *            ng-model=\"email\"\n *            minlength=\"5\"\n *            required />\n *   </label>\n *   <!-- any ng-message elements that appear BEFORE the ng-messages-include will\n *        override the messages present in the ng-messages-include template -->\n *   <div ng-messages=\"myForm.myEmail.$error\" role=\"alert\">\n *     <!-- this required message has overridden the template message -->\n *     <div ng-message=\"required\">You did not enter your email address</div>\n *\n *     <!-- this is a brand new message and will appear last in the prioritization -->\n *     <div ng-message=\"email\">Your email address is invalid</div>\n *\n *     <!-- and here are the generic error messages -->\n *     <div ng-messages-include=\"my-custom-messages\"></div>\n *   </div>\n * </form>\n * ```\n *\n * In the example HTML code above the message that is set on required will override the corresponding\n * required message defined within the remote template. Therefore, with particular input fields (such\n * email addresses, date fields, autocomplete inputs, etc...), specialized error messages can be applied\n * while more generic messages can be used to handle other, more general input errors.\n *\n * ## Dynamic Messaging\n * ngMessages also supports using expressions to dynamically change key values. Using arrays and\n * repeaters to list messages is also supported. This means that the code below will be able to\n * fully adapt itself and display the appropriate message when any of the expression data changes:\n *\n * ```html\n * <form name=\"myForm\">\n *   <label>\n *     Email address\n *     <input type=\"email\"\n *            name=\"myEmail\"\n *            ng-model=\"email\"\n *            minlength=\"5\"\n *            required />\n *   </label>\n *   <div ng-messages=\"myForm.myEmail.$error\" role=\"alert\">\n *     <div ng-message=\"required\">You did not enter your email address</div>\n *     <div ng-repeat=\"errorMessage in errorMessages\">\n *       <!-- use ng-message-exp for a message whose key is given by an expression -->\n *       <div ng-message-exp=\"errorMessage.type\">{{ errorMessage.text }}</div>\n *     </div>\n *   </div>\n * </form>\n * ```\n *\n * The `errorMessage.type` expression can be a string value or it can be an array so\n * that multiple errors can be associated with a single error message:\n *\n * ```html\n *   <label>\n *     Email address\n *     <input type=\"email\"\n *            ng-model=\"data.email\"\n *            name=\"myEmail\"\n *            ng-minlength=\"5\"\n *            ng-maxlength=\"100\"\n *            required />\n *   </label>\n *   <div ng-messages=\"myForm.myEmail.$error\" role=\"alert\">\n *     <div ng-message-exp=\"'required'\">You did not enter your email address</div>\n *     <div ng-message-exp=\"['minlength', 'maxlength']\">\n *       Your email must be between 5 and 100 characters long\n *     </div>\n *   </div>\n * ```\n *\n * Feel free to use other structural directives such as ng-if and ng-switch to further control\n * what messages are active and when. Be careful, if you place ng-message on the same element\n * as these structural directives, AngularJS may not be able to determine if a message is active\n * or not. Therefore it is best to place the ng-message on a child element of the structural\n * directive.\n *\n * ```html\n * <div ng-messages=\"myForm.myEmail.$error\" role=\"alert\">\n *   <div ng-if=\"showRequiredError\">\n *     <div ng-message=\"required\">Please enter something</div>\n *   </div>\n * </div>\n * ```\n *\n * ## Animations\n * If the `ngAnimate` module is active within the application then the `ngMessages`, `ngMessage` and\n * `ngMessageExp` directives will trigger animations whenever any messages are added and removed from\n * the DOM by the `ngMessages` directive.\n *\n * Whenever the `ngMessages` directive contains one or more visible messages then the `.ng-active` CSS\n * class will be added to the element. The `.ng-inactive` CSS class will be applied when there are no\n * messages present. Therefore, CSS transitions and keyframes as well as JavaScript animations can\n * hook into the animations whenever these classes are added/removed.\n *\n * Let's say that our HTML code for our messages container looks like so:\n *\n * ```html\n * <div ng-messages=\"myMessages\" class=\"my-messages\" role=\"alert\">\n *   <div ng-message=\"alert\" class=\"some-message\">...</div>\n *   <div ng-message=\"fail\" class=\"some-message\">...</div>\n * </div>\n * ```\n *\n * Then the CSS animation code for the message container looks like so:\n *\n * ```css\n * .my-messages {\n *   transition:1s linear all;\n * }\n * .my-messages.ng-active {\n *   // messages are visible\n * }\n * .my-messages.ng-inactive {\n *   // messages are hidden\n * }\n * ```\n *\n * Whenever an inner message is attached (becomes visible) or removed (becomes hidden) then the enter\n * and leave animation is triggered for each particular element bound to the `ngMessage` directive.\n *\n * Therefore, the CSS code for the inner messages looks like so:\n *\n * ```css\n * .some-message {\n *   transition:1s linear all;\n * }\n *\n * .some-message.ng-enter {}\n * .some-message.ng-enter.ng-enter-active {}\n *\n * .some-message.ng-leave {}\n * .some-message.ng-leave.ng-leave-active {}\n * ```\n *\n * {@link ngAnimate See the ngAnimate docs} to learn how to use JavaScript animations or to learn\n * more about ngAnimate.\n *\n * ## Displaying a default message\n * If the ngMessages renders no inner ngMessage directive (i.e. when none of the truthy\n * keys are matched by a defined message), then it will render a default message\n * using the {@link ngMessageDefault} directive.\n * Note that matched messages will always take precedence over unmatched messages. That means\n * the default message will not be displayed when another message is matched. This is also\n * true for `ng-messages-multiple`.\n *\n * ```html\n * <div ng-messages=\"myForm.myField.$error\" role=\"alert\">\n *   <div ng-message=\"required\">This field is required</div>\n *   <div ng-message=\"minlength\">This field is too short</div>\n *   <div ng-message-default>This field has an input error</div>\n * </div>\n * ```\n *\n\n */\nangular.module('ngMessages', [], function initAngularHelpers() {\n  // Access helpers from AngularJS core.\n  // Do it inside a `config` block to ensure `window.angular` is available.\n  forEach = angular.forEach;\n  isArray = angular.isArray;\n  isString = angular.isString;\n  jqLite = angular.element;\n})\n  .info({ angularVersion: '1.8.3' })\n\n  /**\n   * @ngdoc directive\n   * @module ngMessages\n   * @name ngMessages\n   * @restrict AE\n   *\n   * @description\n   * `ngMessages` is a directive that is designed to show and hide messages based on the state\n   * of a key/value object that it listens on. The directive itself complements error message\n   * reporting with the `ngModel` $error object (which stores a key/value state of validation errors).\n   *\n   * `ngMessages` manages the state of internal messages within its container element. The internal\n   * messages use the `ngMessage` directive and will be inserted/removed from the page depending\n   * on if they're present within the key/value object. By default, only one message will be displayed\n   * at a time and this depends on the prioritization of the messages within the template. (This can\n   * be changed by using the `ng-messages-multiple` or `multiple` attribute on the directive container.)\n   *\n   * A remote template can also be used (With {@link ngMessagesInclude}) to promote message\n   * reusability and messages can also be overridden.\n   *\n   * A default message can also be displayed when no `ngMessage` directive is inserted, using the\n   * {@link ngMessageDefault} directive.\n   *\n   * {@link module:ngMessages Click here} to learn more about `ngMessages` and `ngMessage`.\n   *\n   * @usage\n   * ```html\n   * <!-- using attribute directives -->\n   * <ANY ng-messages=\"expression\" role=\"alert\">\n   *   <ANY ng-message=\"stringValue\">...</ANY>\n   *   <ANY ng-message=\"stringValue1, stringValue2, ...\">...</ANY>\n   *   <ANY ng-message-exp=\"expressionValue\">...</ANY>\n   *   <ANY ng-message-default>...</ANY>\n   * </ANY>\n   *\n   * <!-- or by using element directives -->\n   * <ng-messages for=\"expression\" role=\"alert\">\n   *   <ng-message when=\"stringValue\">...</ng-message>\n   *   <ng-message when=\"stringValue1, stringValue2, ...\">...</ng-message>\n   *   <ng-message when-exp=\"expressionValue\">...</ng-message>\n   *   <ng-message-default>...</ng-message-default>\n   * </ng-messages>\n   * ```\n   *\n   * @param {string} ngMessages an AngularJS expression evaluating to a key/value object\n   *                 (this is typically the $error object on an ngModel instance).\n   * @param {string=} ngMessagesMultiple|multiple when set, all messages will be displayed with true\n   *\n   * @example\n   * <example name=\"ngMessages-directive\" module=\"ngMessagesExample\"\n   *          deps=\"angular-messages.js\"\n   *          animations=\"true\" fixBase=\"true\">\n   *   <file name=\"index.html\">\n   *     <form name=\"myForm\">\n   *       <label>\n   *         Enter your name:\n   *         <input type=\"text\"\n   *                name=\"myName\"\n   *                ng-model=\"name\"\n   *                ng-minlength=\"5\"\n   *                ng-maxlength=\"20\"\n   *                required />\n   *       </label>\n   *       <pre>myForm.myName.$error = {{ myForm.myName.$error | json }}</pre>\n   *\n   *       <div ng-messages=\"myForm.myName.$error\" style=\"color:maroon\" role=\"alert\">\n   *         <div ng-message=\"required\">You did not enter a field</div>\n   *         <div ng-message=\"minlength\">Your field is too short</div>\n   *         <div ng-message=\"maxlength\">Your field is too long</div>\n   *         <div ng-message-default>This field has an input error</div>\n   *       </div>\n   *     </form>\n   *   </file>\n   *   <file name=\"script.js\">\n   *     angular.module('ngMessagesExample', ['ngMessages']);\n   *   </file>\n   * </example>\n   */\n  .directive('ngMessages', ['$animate', function($animate) {\n    var ACTIVE_CLASS = 'ng-active';\n    var INACTIVE_CLASS = 'ng-inactive';\n\n    return {\n      require: 'ngMessages',\n      restrict: 'AE',\n      controller: ['$element', '$scope', '$attrs', function NgMessagesCtrl($element, $scope, $attrs) {\n        var ctrl = this;\n        var latestKey = 0;\n        var nextAttachId = 0;\n\n        this.getAttachId = function getAttachId() { return nextAttachId++; };\n\n        var messages = this.messages = {};\n        var renderLater, cachedCollection;\n\n        this.render = function(collection) {\n          collection = collection || {};\n\n          renderLater = false;\n          cachedCollection = collection;\n\n          // this is true if the attribute is empty or if the attribute value is truthy\n          var multiple = isAttrTruthy($scope, $attrs.ngMessagesMultiple) ||\n                         isAttrTruthy($scope, $attrs.multiple);\n\n          var unmatchedMessages = [];\n          var matchedKeys = {};\n          var truthyKeys = 0;\n          var messageItem = ctrl.head;\n          var messageFound = false;\n          var totalMessages = 0;\n\n          // we use != instead of !== to allow for both undefined and null values\n          while (messageItem != null) {\n            totalMessages++;\n            var messageCtrl = messageItem.message;\n\n            var messageUsed = false;\n            if (!messageFound) {\n              forEach(collection, function(value, key) {\n                if (truthy(value) && !messageUsed) {\n                  truthyKeys++;\n\n                  if (messageCtrl.test(key)) {\n                    // this is to prevent the same error name from showing up twice\n                    if (matchedKeys[key]) return;\n                    matchedKeys[key] = true;\n\n                    messageUsed = true;\n                    messageCtrl.attach();\n                  }\n                }\n              });\n            }\n\n            if (messageUsed) {\n              // unless we want to display multiple messages then we should\n              // set a flag here to avoid displaying the next message in the list\n              messageFound = !multiple;\n            } else {\n              unmatchedMessages.push(messageCtrl);\n            }\n\n            messageItem = messageItem.next;\n          }\n\n          forEach(unmatchedMessages, function(messageCtrl) {\n            messageCtrl.detach();\n          });\n\n          var messageMatched = unmatchedMessages.length !== totalMessages;\n          var attachDefault = ctrl.default && !messageMatched && truthyKeys > 0;\n\n          if (attachDefault) {\n            ctrl.default.attach();\n          } else if (ctrl.default) {\n            ctrl.default.detach();\n          }\n\n          if (messageMatched || attachDefault) {\n            $animate.setClass($element, ACTIVE_CLASS, INACTIVE_CLASS);\n          } else {\n            $animate.setClass($element, INACTIVE_CLASS, ACTIVE_CLASS);\n          }\n        };\n\n        $scope.$watchCollection($attrs.ngMessages || $attrs['for'], ctrl.render);\n\n        this.reRender = function() {\n          if (!renderLater) {\n            renderLater = true;\n            $scope.$evalAsync(function() {\n              if (renderLater && cachedCollection) {\n                ctrl.render(cachedCollection);\n              }\n            });\n          }\n        };\n\n        this.register = function(comment, messageCtrl, isDefault) {\n          if (isDefault) {\n            ctrl.default = messageCtrl;\n          } else {\n            var nextKey = latestKey.toString();\n            messages[nextKey] = {\n              message: messageCtrl\n            };\n            insertMessageNode($element[0], comment, nextKey);\n            comment.$$ngMessageNode = nextKey;\n            latestKey++;\n          }\n\n          ctrl.reRender();\n        };\n\n        this.deregister = function(comment, isDefault) {\n          if (isDefault) {\n            delete ctrl.default;\n          } else {\n            var key = comment.$$ngMessageNode;\n            delete comment.$$ngMessageNode;\n            removeMessageNode($element[0], comment, key);\n            delete messages[key];\n          }\n          ctrl.reRender();\n        };\n\n        function findPreviousMessage(parent, comment) {\n          var prevNode = comment;\n          var parentLookup = [];\n\n          while (prevNode && prevNode !== parent) {\n            var prevKey = prevNode.$$ngMessageNode;\n            if (prevKey && prevKey.length) {\n              return messages[prevKey];\n            }\n\n            // dive deeper into the DOM and examine its children for any ngMessage\n            // comments that may be in an element that appears deeper in the list\n            if (prevNode.childNodes.length && parentLookup.indexOf(prevNode) === -1) {\n              parentLookup.push(prevNode);\n              prevNode = prevNode.childNodes[prevNode.childNodes.length - 1];\n            } else if (prevNode.previousSibling) {\n              prevNode = prevNode.previousSibling;\n            } else {\n              prevNode = prevNode.parentNode;\n              parentLookup.push(prevNode);\n            }\n          }\n        }\n\n        function insertMessageNode(parent, comment, key) {\n          var messageNode = messages[key];\n          if (!ctrl.head) {\n            ctrl.head = messageNode;\n          } else {\n            var match = findPreviousMessage(parent, comment);\n            if (match) {\n              messageNode.next = match.next;\n              match.next = messageNode;\n            } else {\n              messageNode.next = ctrl.head;\n              ctrl.head = messageNode;\n            }\n          }\n        }\n\n        function removeMessageNode(parent, comment, key) {\n          var messageNode = messages[key];\n\n          // This message node may have already been removed by a call to deregister()\n          if (!messageNode) return;\n\n          var match = findPreviousMessage(parent, comment);\n          if (match) {\n            match.next = messageNode.next;\n          } else {\n            ctrl.head = messageNode.next;\n          }\n        }\n      }]\n    };\n\n    function isAttrTruthy(scope, attr) {\n     return (isString(attr) && attr.length === 0) || //empty attribute\n            truthy(scope.$eval(attr));\n    }\n\n    function truthy(val) {\n      return isString(val) ? val.length : !!val;\n    }\n  }])\n\n  /**\n   * @ngdoc directive\n   * @name ngMessagesInclude\n   * @restrict AE\n   * @scope\n   *\n   * @description\n   * `ngMessagesInclude` is a directive with the purpose to import existing ngMessage template\n   * code from a remote template and place the downloaded template code into the exact spot\n   * that the ngMessagesInclude directive is placed within the ngMessages container. This allows\n   * for a series of pre-defined messages to be reused and also allows for the developer to\n   * determine what messages are overridden due to the placement of the ngMessagesInclude directive.\n   *\n   * @usage\n   * ```html\n   * <!-- using attribute directives -->\n   * <ANY ng-messages=\"expression\" role=\"alert\">\n   *   <ANY ng-messages-include=\"remoteTplString\">...</ANY>\n   * </ANY>\n   *\n   * <!-- or by using element directives -->\n   * <ng-messages for=\"expression\" role=\"alert\">\n   *   <ng-messages-include src=\"expressionValue1\">...</ng-messages-include>\n   * </ng-messages>\n   * ```\n   *\n   * {@link module:ngMessages Click here} to learn more about `ngMessages` and `ngMessage`.\n   *\n   * @param {string} ngMessagesInclude|src a string value corresponding to the remote template.\n   */\n  .directive('ngMessagesInclude',\n    ['$templateRequest', '$document', '$compile', function($templateRequest, $document, $compile) {\n\n    return {\n      restrict: 'AE',\n      require: '^^ngMessages', // we only require this for validation sake\n      link: function($scope, element, attrs) {\n        var src = attrs.ngMessagesInclude || attrs.src;\n        $templateRequest(src).then(function(html) {\n          if ($scope.$$destroyed) return;\n\n          if (isString(html) && !html.trim()) {\n            // Empty template - nothing to compile\n            replaceElementWithMarker(element, src);\n          } else {\n            // Non-empty template - compile and link\n            $compile(html)($scope, function(contents) {\n              element.after(contents);\n              replaceElementWithMarker(element, src);\n            });\n          }\n        });\n      }\n    };\n\n    // Helpers\n    function replaceElementWithMarker(element, src) {\n      // A comment marker is placed for debugging purposes\n      var comment = $compile.$$createComment ?\n          $compile.$$createComment('ngMessagesInclude', src) :\n          $document[0].createComment(' ngMessagesInclude: ' + src + ' ');\n      var marker = jqLite(comment);\n      element.after(marker);\n\n      // Don't pollute the DOM anymore by keeping an empty directive element\n      element.remove();\n    }\n  }])\n\n  /**\n   * @ngdoc directive\n   * @name ngMessage\n   * @restrict AE\n   * @scope\n   * @priority 1\n   *\n   * @description\n   * `ngMessage` is a directive with the purpose to show and hide a particular message.\n   * For `ngMessage` to operate, a parent `ngMessages` directive on a parent DOM element\n   * must be situated since it determines which messages are visible based on the state\n   * of the provided key/value map that `ngMessages` listens on.\n   *\n   * More information about using `ngMessage` can be found in the\n   * {@link module:ngMessages `ngMessages` module documentation}.\n   *\n   * @usage\n   * ```html\n   * <!-- using attribute directives -->\n   * <ANY ng-messages=\"expression\" role=\"alert\">\n   *   <ANY ng-message=\"stringValue\">...</ANY>\n   *   <ANY ng-message=\"stringValue1, stringValue2, ...\">...</ANY>\n   * </ANY>\n   *\n   * <!-- or by using element directives -->\n   * <ng-messages for=\"expression\" role=\"alert\">\n   *   <ng-message when=\"stringValue\">...</ng-message>\n   *   <ng-message when=\"stringValue1, stringValue2, ...\">...</ng-message>\n   * </ng-messages>\n   * ```\n   *\n   * @param {expression} ngMessage|when a string value corresponding to the message key.\n   */\n  .directive('ngMessage', ngMessageDirectiveFactory())\n\n\n  /**\n   * @ngdoc directive\n   * @name ngMessageExp\n   * @restrict AE\n   * @priority 1\n   * @scope\n   *\n   * @description\n   * `ngMessageExp` is the same as {@link directive:ngMessage `ngMessage`}, but instead of a static\n   * value, it accepts an expression to be evaluated for the message key.\n   *\n   * @usage\n   * ```html\n   * <!-- using attribute directives -->\n   * <ANY ng-messages=\"expression\">\n   *   <ANY ng-message-exp=\"expressionValue\">...</ANY>\n   * </ANY>\n   *\n   * <!-- or by using element directives -->\n   * <ng-messages for=\"expression\">\n   *   <ng-message when-exp=\"expressionValue\">...</ng-message>\n   * </ng-messages>\n   * ```\n   *\n   * {@link module:ngMessages Click here} to learn more about `ngMessages` and `ngMessage`.\n   *\n   * @param {expression} ngMessageExp|whenExp an expression value corresponding to the message key.\n   */\n  .directive('ngMessageExp', ngMessageDirectiveFactory())\n\n  /**\n   * @ngdoc directive\n   * @name ngMessageDefault\n   * @restrict AE\n   * @scope\n   *\n   * @description\n   * `ngMessageDefault` is a directive with the purpose to show and hide a default message for\n   * {@link directive:ngMessages}, when none of provided messages matches.\n   *\n   * More information about using `ngMessageDefault` can be found in the\n   * {@link module:ngMessages `ngMessages` module documentation}.\n   *\n   * @usage\n   * ```html\n   * <!-- using attribute directives -->\n   * <ANY ng-messages=\"expression\" role=\"alert\">\n   *   <ANY ng-message=\"stringValue\">...</ANY>\n   *   <ANY ng-message=\"stringValue1, stringValue2, ...\">...</ANY>\n   *   <ANY ng-message-default>...</ANY>\n   * </ANY>\n   *\n   * <!-- or by using element directives -->\n   * <ng-messages for=\"expression\" role=\"alert\">\n   *   <ng-message when=\"stringValue\">...</ng-message>\n   *   <ng-message when=\"stringValue1, stringValue2, ...\">...</ng-message>\n   *   <ng-message-default>...</ng-message-default>\n   * </ng-messages>\n   *\n  */\n  .directive('ngMessageDefault', ngMessageDirectiveFactory(true));\n\nfunction ngMessageDirectiveFactory(isDefault) {\n  return ['$animate', function($animate) {\n    return {\n      restrict: 'AE',\n      transclude: 'element',\n      priority: 1, // must run before ngBind, otherwise the text is set on the comment\n      terminal: true,\n      require: '^^ngMessages',\n      link: function(scope, element, attrs, ngMessagesCtrl, $transclude) {\n        var commentNode, records, staticExp, dynamicExp;\n\n        if (!isDefault) {\n          commentNode = element[0];\n          staticExp = attrs.ngMessage || attrs.when;\n          dynamicExp = attrs.ngMessageExp || attrs.whenExp;\n\n          var assignRecords = function(items) {\n            records = items\n                ? (isArray(items)\n                      ? items\n                      : items.split(/[\\s,]+/))\n                : null;\n            ngMessagesCtrl.reRender();\n          };\n\n          if (dynamicExp) {\n            assignRecords(scope.$eval(dynamicExp));\n            scope.$watchCollection(dynamicExp, assignRecords);\n          } else {\n            assignRecords(staticExp);\n          }\n        }\n\n        var currentElement, messageCtrl;\n        ngMessagesCtrl.register(commentNode, messageCtrl = {\n          test: function(name) {\n            return contains(records, name);\n          },\n          attach: function() {\n            if (!currentElement) {\n              $transclude(function(elm, newScope) {\n                $animate.enter(elm, null, element);\n                currentElement = elm;\n\n                // Each time we attach this node to a message we get a new id that we can match\n                // when we are destroying the node later.\n                var $$attachId = currentElement.$$attachId = ngMessagesCtrl.getAttachId();\n\n                // in the event that the element or a parent element is destroyed\n                // by another structural directive then it's time\n                // to deregister the message from the controller\n                currentElement.on('$destroy', function() {\n                  // If the message element was removed via a call to `detach` then `currentElement` will be null\n                  // So this handler only handles cases where something else removed the message element.\n                  if (currentElement && currentElement.$$attachId === $$attachId) {\n                    ngMessagesCtrl.deregister(commentNode, isDefault);\n                    messageCtrl.detach();\n                  }\n                  newScope.$destroy();\n                });\n              });\n            }\n          },\n          detach: function() {\n            if (currentElement) {\n              var elm = currentElement;\n              currentElement = null;\n              $animate.leave(elm);\n            }\n          }\n        }, isDefault);\n\n        // We need to ensure that this directive deregisters itself when it no longer exists\n        // Normally this is done when the attached element is destroyed; but if this directive\n        // gets removed before we attach the message to the DOM there is nothing to watch\n        // in which case we must deregister when the containing scope is destroyed.\n        scope.$on('$destroy', function() {\n          ngMessagesCtrl.deregister(commentNode, isDefault);\n        });\n      }\n    };\n  }];\n\n  function contains(collection, key) {\n    if (collection) {\n      return isArray(collection)\n          ? collection.indexOf(key) >= 0\n          : collection.hasOwnProperty(key);\n    }\n  }\n}\n\n\n})(window, window.angular);\n\n/*!\n * AngularJS Material Design\n * https://github.com/angular/material\n * @license MIT\n * v1.2.5\n */\n(function( window, angular, undefined ){\n\"use strict\";\n\n(function(){\n\"use strict\";\n\nangular.module('ngMaterial', [\"ng\",\"ngAnimate\",\"ngAria\",\"material.core\",\"material.core.animate\",\"material.core.gestures\",\"material.core.interaction\",\"material.core.layout\",\"material.core.meta\",\"material.core.theming.palette\",\"material.core.theming\",\"material.components.autocomplete\",\"material.components.backdrop\",\"material.components.bottomSheet\",\"material.components.button\",\"material.components.card\",\"material.components.checkbox\",\"material.components.chips\",\"material.components.colors\",\"material.components.content\",\"material.components.datepicker\",\"material.components.dialog\",\"material.components.divider\",\"material.components.fabActions\",\"material.components.fabShared\",\"material.components.fabSpeedDial\",\"material.components.fabToolbar\",\"material.components.gridList\",\"material.components.icon\",\"material.components.input\",\"material.components.list\",\"material.components.menu\",\"material.components.menuBar\",\"material.components.navBar\",\"material.components.panel\",\"material.components.progressCircular\",\"material.components.progressLinear\",\"material.components.radioButton\",\"material.components.select\",\"material.components.showHide\",\"material.components.sidenav\",\"material.components.slider\",\"material.components.sticky\",\"material.components.subheader\",\"material.components.swipe\",\"material.components.switch\",\"material.components.tabs\",\"material.components.toast\",\"material.components.toolbar\",\"material.components.tooltip\",\"material.components.truncate\",\"material.components.virtualRepeat\",\"material.components.whiteframe\"]);\n})();\n(function(){\n\"use strict\";\n\n/**\n * Initialization function that validates environment\n * requirements.\n */\nDetectNgTouch.$inject = [\"$log\", \"$injector\"];\nMdCoreConfigure.$inject = [\"$provide\", \"$mdThemingProvider\"];\nrAFDecorator.$inject = [\"$delegate\"];\nqDecorator.$inject = [\"$delegate\"];\nangular\n  .module('material.core', [\n    'ngAnimate',\n    'material.core.animate',\n    'material.core.layout',\n    'material.core.interaction',\n    'material.core.gestures',\n    'material.core.theming'\n  ])\n  .config(MdCoreConfigure)\n  .run(DetectNgTouch);\n\n\n/**\n * Detect if the ng-Touch module is also being used.\n * Warn if detected.\n * @ngInject\n */\nfunction DetectNgTouch($log, $injector) {\n  if ($injector.has('$swipe')) {\n    var msg = \"\" +\n      \"You are using the ngTouch module. \\n\" +\n      \"AngularJS Material already has mobile click, tap, and swipe support... \\n\" +\n      \"ngTouch is not supported with AngularJS Material!\";\n    $log.warn(msg);\n  }\n}\n\n/**\n * @ngInject\n */\nfunction MdCoreConfigure($provide, $mdThemingProvider) {\n\n  $provide.decorator('$$rAF', ['$delegate', rAFDecorator]);\n  $provide.decorator('$q', ['$delegate', qDecorator]);\n\n  $mdThemingProvider.theme('default')\n    .primaryPalette('indigo')\n    .accentPalette('pink')\n    .warnPalette('deep-orange')\n    .backgroundPalette('grey');\n}\n\n/**\n * @ngInject\n */\nfunction rAFDecorator($delegate) {\n  /**\n   * Use this to throttle events that come in often.\n   * The throttled function will always use the *last* invocation before the\n   * coming frame.\n   *\n   * For example, window resize events that fire many times a second:\n   * If we set to use an raf-throttled callback on window resize, then\n   * our callback will only be fired once per frame, with the last resize\n   * event that happened before that frame.\n   *\n   * @param {function} cb function to debounce\n   */\n  $delegate.throttle = function(cb) {\n    var queuedArgs, alreadyQueued, queueCb, context;\n    return function debounced() {\n      queuedArgs = arguments;\n      context = this;\n      queueCb = cb;\n      if (!alreadyQueued) {\n        alreadyQueued = true;\n        $delegate(function() {\n          queueCb.apply(context, Array.prototype.slice.call(queuedArgs));\n          alreadyQueued = false;\n        });\n      }\n    };\n  };\n  return $delegate;\n}\n\n/**\n * @ngInject\n */\nfunction qDecorator($delegate) {\n  /**\n   * Adds a shim for $q.resolve for AngularJS version that don't have it,\n   * so we don't have to think about it.\n   *\n   * via https://github.com/angular/angular.js/pull/11987\n   */\n\n  // TODO(crisbeto): this won't be necessary once we drop AngularJS 1.3\n  if (!$delegate.resolve) {\n    $delegate.resolve = $delegate.when;\n  }\n  return $delegate;\n}\n\n})();\n(function(){\n\"use strict\";\n\n\nMdAutofocusDirective.$inject = [\"$parse\"];angular.module('material.core')\n  .directive('mdAutofocus', MdAutofocusDirective);\n\n/**\n * @ngdoc directive\n * @name mdAutofocus\n * @module material.core.util\n *\n * @description\n *\n * `[md-autofocus]` provides an optional way to identify the focused element when a `$mdDialog`,\n * `$mdBottomSheet`, `$mdMenu` or `$mdSidenav` opens or upon page load for input-like elements.\n *\n * When one of these opens, it will find the first nested element with the `[md-autofocus]`\n * attribute directive and optional expression. An expression may be specified as the directive\n * value to enable conditional activation of the autofocus.\n *\n * @usage\n *\n * ### Dialog\n * <hljs lang=\"html\">\n * <md-dialog>\n *   <form>\n *     <md-input-container>\n *       <label for=\"testInput\">Label</label>\n *       <input id=\"testInput\" type=\"text\" md-autofocus>\n *     </md-input-container>\n *   </form>\n * </md-dialog>\n * </hljs>\n *\n * ### Bottomsheet\n * <hljs lang=\"html\">\n * <md-bottom-sheet class=\"md-list md-has-header\">\n *  <md-subheader>Comment Actions</md-subheader>\n *  <md-list>\n *    <md-list-item ng-repeat=\"item in items\">\n *\n *      <md-button md-autofocus=\"$index == 2\">\n *        <md-icon md-svg-src=\"{{item.icon}}\"></md-icon>\n *        <span class=\"md-inline-list-icon-label\">{{ item.name }}</span>\n *      </md-button>\n *\n *    </md-list-item>\n *  </md-list>\n * </md-bottom-sheet>\n * </hljs>\n *\n * ### Autocomplete\n * <hljs lang=\"html\">\n *   <md-autocomplete\n *       md-autofocus\n *       md-selected-item=\"selectedItem\"\n *       md-search-text=\"searchText\"\n *       md-items=\"item in getMatches(searchText)\"\n *       md-item-text=\"item.display\">\n *     <span md-highlight-text=\"searchText\">{{item.display}}</span>\n *   </md-autocomplete>\n * </hljs>\n *\n * ### Sidenav\n * <hljs lang=\"html\">\n * <div layout=\"row\" ng-controller=\"MyController\">\n *   <md-sidenav md-component-id=\"left\" class=\"md-sidenav-left\">\n *     Left Nav!\n *   </md-sidenav>\n *\n *   <md-content>\n *     Center Content\n *     <md-button ng-click=\"openLeftMenu()\">\n *       Open Left Menu\n *     </md-button>\n *   </md-content>\n *\n *   <md-sidenav md-component-id=\"right\"\n *     md-is-locked-open=\"$mdMedia('min-width: 333px')\"\n *     class=\"md-sidenav-right\">\n *     <form>\n *       <md-input-container>\n *         <label for=\"testInput\">Test input</label>\n *         <input id=\"testInput\" type=\"text\"\n *                ng-model=\"data\" md-autofocus>\n *       </md-input-container>\n *     </form>\n *   </md-sidenav>\n * </div>\n * </hljs>\n **/\nfunction MdAutofocusDirective($parse) {\n  return {\n    restrict: 'A',\n    link: {\n      pre: preLink\n    }\n  };\n\n  function preLink(scope, element, attr) {\n    var attrExp = attr.mdAutoFocus || attr.mdAutofocus || attr.mdSidenavFocus;\n\n    // Initially update the expression by manually parsing the expression as per $watch source.\n    updateExpression($parse(attrExp)(scope));\n\n    // Only watch the expression if it is not empty.\n    if (attrExp) {\n      scope.$watch(attrExp, updateExpression);\n    }\n\n    /**\n     * Updates the autofocus class which is used to determine whether the attribute\n     * expression evaluates to true or false.\n     * @param {string|boolean} value Attribute Value\n     */\n    function updateExpression(value) {\n\n      // Rather than passing undefined to the jqLite toggle class function we explicitly set the\n      // value to true. Otherwise the class will be just toggled instead of being forced.\n      if (angular.isUndefined(value)) {\n        value = true;\n      }\n\n      element.toggleClass('md-autofocus', !!value);\n    }\n  }\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.core.colorUtil\n * @description\n * Color Util\n */\nangular\n  .module('material.core')\n  .factory('$mdColorUtil', ColorUtilFactory);\n\nfunction ColorUtilFactory() {\n  /**\n   * Converts hex value to RGBA string\n   * @param color {string}\n   * @returns {string}\n   */\n  function hexToRgba (color) {\n    var hex   = color[ 0 ] === '#' ? color.substr(1) : color,\n      dig   = hex.length / 3,\n      red   = hex.substr(0, dig),\n      green = hex.substr(dig, dig),\n      blue  = hex.substr(dig * 2);\n    if (dig === 1) {\n      red += red;\n      green += green;\n      blue += blue;\n    }\n    return 'rgba(' + parseInt(red, 16) + ',' + parseInt(green, 16) + ',' + parseInt(blue, 16) + ',0.1)';\n  }\n\n  /**\n   * Converts rgba value to hex string\n   * @param {string} color\n   * @returns {string}\n   */\n  function rgbaToHex(color) {\n    color = color.match(/^rgba?[\\s+]?\\([\\s+]?(\\d+)[\\s+]?,[\\s+]?(\\d+)[\\s+]?,[\\s+]?(\\d+)[\\s+]?/i);\n\n    var hex = (color && color.length === 4) ? \"#\" +\n    (\"0\" + parseInt(color[1],10).toString(16)).slice(-2) +\n    (\"0\" + parseInt(color[2],10).toString(16)).slice(-2) +\n    (\"0\" + parseInt(color[3],10).toString(16)).slice(-2) : '';\n\n    return hex.toUpperCase();\n  }\n\n  /**\n   * Converts an RGB color to RGBA\n   * @param {string} color\n   * @returns {string}\n   */\n  function rgbToRgba (color) {\n    return color.replace(')', ', 0.1)').replace('(', 'a(');\n  }\n\n  /**\n   * Converts an RGBA color to RGB\n   * @param {string} color\n   * @returns {string}\n   */\n  function rgbaToRgb (color) {\n    return color\n      ? color.replace('rgba', 'rgb').replace(/,[^),]+\\)/, ')')\n      : 'rgb(0,0,0)';\n  }\n\n  return {\n    rgbaToHex: rgbaToHex,\n    hexToRgba: hexToRgba,\n    rgbToRgba: rgbToRgba,\n    rgbaToRgb: rgbaToRgb\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\nangular.module('material.core')\n.factory('$mdConstant', MdConstantFactory);\n\n/**\n * Factory function that creates the grab-bag $mdConstant service.\n * @ngInject\n */\nfunction MdConstantFactory() {\n\n  var prefixTestEl = document.createElement('div');\n  var vendorPrefix = getVendorPrefix(prefixTestEl);\n  var isWebkit = /webkit/i.test(vendorPrefix);\n  var SPECIAL_CHARS_REGEXP = /([:\\-_]+(.))/g;\n\n  /**\n   * @param {string} name CSS property name\n   * @return {string} the property name supported by the browser\n   */\n  function vendorProperty(name) {\n    // Add a dash between the prefix and name, to be able to transform the string into camelcase.\n    var prefixedName = vendorPrefix + '-' + name;\n    var ucPrefix = camelCase(prefixedName);\n    var lcPrefix = ucPrefix.charAt(0).toLowerCase() + ucPrefix.substring(1);\n\n    return hasStyleProperty(prefixTestEl, name)     ? name     :       // The current browser supports the un-prefixed property\n           hasStyleProperty(prefixTestEl, ucPrefix) ? ucPrefix :       // The current browser only supports the prefixed property.\n           hasStyleProperty(prefixTestEl, lcPrefix) ? lcPrefix : name; // Some browsers are only supporting the prefix in lowercase.\n  }\n\n  function hasStyleProperty(testElement, property) {\n    return angular.isDefined(testElement.style[property]);\n  }\n\n  /**\n   * @param {!string} input value to convert to camelCase\n   * @return {string} camelCased version of the input string\n   */\n  function camelCase(input) {\n    return input.replace(SPECIAL_CHARS_REGEXP, function(matches, separator, letter, offset) {\n      return offset ? letter.toUpperCase() : letter;\n    });\n  }\n\n  function getVendorPrefix(testElement) {\n    var prop, match;\n    var vendorRegex = /^(Moz|webkit|ms)(?=[A-Z])/;\n\n    for (prop in testElement.style) {\n      if (match = vendorRegex.exec(prop)) {\n        return match[0];\n      }\n    }\n  }\n\n  var self = {\n    isInputKey : function(e) { return (e.keyCode >= 31 && e.keyCode <= 90); },\n    isNumPadKey : function(e) { return (3 === e.location && e.keyCode >= 97 && e.keyCode <= 105); },\n    isMetaKey: function(e) { return (e.keyCode >= 91 && e.keyCode <= 93); },\n    isFnLockKey: function(e) { return (e.keyCode >= 112 && e.keyCode <= 145); },\n    isNavigationKey : function(e) {\n      var kc = self.KEY_CODE, NAVIGATION_KEYS =  [kc.SPACE, kc.ENTER, kc.UP_ARROW, kc.DOWN_ARROW];\n      return (NAVIGATION_KEYS.indexOf(e.keyCode) != -1);\n    },\n    hasModifierKey: function(e) {\n      return e.ctrlKey || e.metaKey || e.altKey;\n    },\n\n    /**\n     * Maximum size, in pixels, that can be explicitly set to an element. The actual value varies\n     * between browsers, but IE11 has the very lowest size at a mere 1,533,917px. Ideally we could\n     * compute this value, but Firefox always reports an element to have a size of zero if it\n     * goes over the max, meaning that we'd have to binary search for the value.\n     */\n    ELEMENT_MAX_PIXELS: 1533917,\n\n    /**\n     * Priority for a directive that should run before the directives from ngAria.\n     */\n    BEFORE_NG_ARIA: 210,\n\n    /**\n     * Common Keyboard actions and their associated keycode.\n     */\n    KEY_CODE: {\n      COMMA: 188,\n      SEMICOLON : 186,\n      ENTER: 13,\n      ESCAPE: 27,\n      SPACE: 32,\n      PAGE_UP: 33,\n      PAGE_DOWN: 34,\n      END: 35,\n      HOME: 36,\n      LEFT_ARROW : 37,\n      UP_ARROW : 38,\n      RIGHT_ARROW : 39,\n      DOWN_ARROW : 40,\n      TAB : 9,\n      BACKSPACE: 8,\n      DELETE: 46\n    },\n\n    /**\n     * Vendor prefixed CSS properties to be used to support the given functionality in older browsers\n     * as well.\n     */\n    CSS: {\n      /* Constants */\n      TRANSITIONEND: 'transitionend' + (isWebkit ? ' webkitTransitionEnd' : ''),\n      ANIMATIONEND: 'animationend' + (isWebkit ? ' webkitAnimationEnd' : ''),\n\n      TRANSFORM: vendorProperty('transform'),\n      TRANSFORM_ORIGIN: vendorProperty('transformOrigin'),\n      TRANSITION: vendorProperty('transition'),\n      TRANSITION_DURATION: vendorProperty('transitionDuration'),\n      ANIMATION_PLAY_STATE: vendorProperty('animationPlayState'),\n      ANIMATION_DURATION: vendorProperty('animationDuration'),\n      ANIMATION_NAME: vendorProperty('animationName'),\n      ANIMATION_TIMING: vendorProperty('animationTimingFunction'),\n      ANIMATION_DIRECTION: vendorProperty('animationDirection')\n    },\n\n    /**\n     * As defined in core/style/_variables.scss\n     *\n     * $layout-breakpoint-xs:     600px !default;\n     * $layout-breakpoint-sm:     960px !default;\n     * $layout-breakpoint-md:     1280px !default;\n     * $layout-breakpoint-lg:     1920px !default;\n     *\n     */\n    MEDIA: {\n      'xs'        : '(max-width: 599px)'                         ,\n      'gt-xs'     : '(min-width: 600px)'                         ,\n      'sm'        : '(min-width: 600px) and (max-width: 959px)'  ,\n      'gt-sm'     : '(min-width: 960px)'                         ,\n      'md'        : '(min-width: 960px) and (max-width: 1279px)' ,\n      'gt-md'     : '(min-width: 1280px)'                        ,\n      'lg'        : '(min-width: 1280px) and (max-width: 1919px)',\n      'gt-lg'     : '(min-width: 1920px)'                        ,\n      'xl'        : '(min-width: 1920px)'                        ,\n      'landscape' : '(orientation: landscape)'                   ,\n      'portrait'  : '(orientation: portrait)'                    ,\n      'print' : 'print'\n    },\n\n    MEDIA_PRIORITY: [\n      'xl',\n      'gt-lg',\n      'lg',\n      'gt-md',\n      'md',\n      'gt-sm',\n      'sm',\n      'gt-xs',\n      'xs',\n      'landscape',\n      'portrait',\n      'print'\n    ]\n  };\n\n  return self;\n}\n\n})();\n(function(){\n\"use strict\";\n\n  angular\n    .module('material.core')\n    .config([\"$provide\", function($provide){\n       $provide.decorator('$mdUtil', ['$delegate', function ($delegate){\n           /**\n            * Inject the iterator facade to easily support iteration and accessors\n            * @see iterator below\n            */\n           $delegate.iterator = MdIterator;\n\n           return $delegate;\n         }\n       ]);\n     }]);\n\n  /**\n   * iterator is a list facade to easily support iteration and accessors/\n   *\n   * @param {any[]} items Array list which this iterator will enumerate\n   * @param {boolean=} reloop enables iterator to consider the list as an endless loop\n   * @return {{add: add, next: (function()), last: (function(): any|null), previous: (function()), count: (function(): number), hasNext: (function(*=): Array.length|*|number|boolean), inRange: (function(*): boolean), remove: remove, contains: (function(*=): *|boolean), itemAt: (function(*=): any|null), findBy: (function(*, *): *[]), hasPrevious: (function(*=): Array.length|*|number|boolean), items: (function(): *[]), indexOf: (function(*=): number), first: (function(): any|null)}}\n   * @constructor\n   */\n  function MdIterator(items, reloop) {\n    var trueFn = function() { return true; };\n\n    if (items && !angular.isArray(items)) {\n      items = Array.prototype.slice.call(items);\n    }\n\n    reloop = !!reloop;\n    var _items = items || [];\n\n    // Published API\n    return {\n      items: getItems,\n      count: count,\n\n      inRange: inRange,\n      contains: contains,\n      indexOf: indexOf,\n      itemAt: itemAt,\n\n      findBy: findBy,\n\n      add: add,\n      remove: remove,\n\n      first: first,\n      last: last,\n      next: angular.bind(null, findSubsequentItem, false),\n      previous: angular.bind(null, findSubsequentItem, true),\n\n      hasPrevious: hasPrevious,\n      hasNext: hasNext\n    };\n\n    /**\n     * Publish copy of the enumerable set\n     * @returns {Array|*}\n     */\n    function getItems() {\n      return [].concat(_items);\n    }\n\n    /**\n     * Determine length of the list\n     * @returns {Array.length|*|number}\n     */\n    function count() {\n      return _items.length;\n    }\n\n    /**\n     * Is the index specified valid\n     * @param index\n     * @returns {Array.length|*|number|boolean}\n     */\n    function inRange(index) {\n      return _items.length && (index > -1) && (index < _items.length);\n    }\n\n    /**\n     * Can the iterator proceed to the next item in the list; relative to\n     * the specified item.\n     *\n     * @param item\n     * @returns {Array.length|*|number|boolean}\n     */\n    function hasNext(item) {\n      return item ? inRange(indexOf(item) + 1) : false;\n    }\n\n    /**\n     * Can the iterator proceed to the previous item in the list; relative to\n     * the specified item.\n     *\n     * @param item\n     * @returns {Array.length|*|number|boolean}\n     */\n    function hasPrevious(item) {\n      return item ? inRange(indexOf(item) - 1) : false;\n    }\n\n    /**\n     * Get item at specified index/position\n     * @param index\n     * @returns {*}\n     */\n    function itemAt(index) {\n      return inRange(index) ? _items[index] : null;\n    }\n\n    /**\n     * Find all elements matching the key/value pair\n     * otherwise return null\n     *\n     * @param val\n     * @param key\n     *\n     * @return array\n     */\n    function findBy(key, val) {\n      return _items.filter(function(item) {\n        return item[key] === val;\n      });\n    }\n\n    /**\n     * Add item to list\n     * @param item\n     * @param index\n     * @returns {*}\n     */\n    function add(item, index) {\n      if (!item) return -1;\n\n      if (!angular.isNumber(index)) {\n        index = _items.length;\n      }\n\n      _items.splice(index, 0, item);\n\n      return indexOf(item);\n    }\n\n    /**\n     * Remove item from list...\n     * @param item\n     */\n    function remove(item) {\n      if (contains(item)){\n        _items.splice(indexOf(item), 1);\n      }\n    }\n\n    /**\n     * Get the zero-based index of the target item\n     * @param item\n     * @returns {*}\n     */\n    function indexOf(item) {\n      return _items.indexOf(item);\n    }\n\n    /**\n     * Boolean existence check\n     * @param item\n     * @returns {boolean}\n     */\n    function contains(item) {\n      return item && (indexOf(item) > -1);\n    }\n\n    /**\n     * Return first item in the list\n     * @returns {*}\n     */\n    function first() {\n      return _items.length ? _items[0] : null;\n    }\n\n    /**\n     * Return last item in the list...\n     * @returns {*}\n     */\n    function last() {\n      return _items.length ? _items[_items.length - 1] : null;\n    }\n\n    /**\n     * Find the next item. If reloop is true and at the end of the list, it will go back to the\n     * first item. If given, the `validate` callback will be used to determine whether the next item\n     * is valid. If not valid, it will try to find the next item again.\n     *\n     * @param {boolean} backwards Specifies the direction of searching (forwards/backwards)\n     * @param {*} item The item whose subsequent item we are looking for\n     * @param {Function=} validate The `validate` function\n     * @param {integer=} limit The recursion limit\n     *\n     * @returns {*} The subsequent item or null\n     */\n    function findSubsequentItem(backwards, item, validate, limit) {\n      validate = validate || trueFn;\n\n      var curIndex = indexOf(item);\n      while (true) {\n        if (!inRange(curIndex)) return null;\n\n        var nextIndex = curIndex + (backwards ? -1 : 1);\n        var foundItem = null;\n        if (inRange(nextIndex)) {\n          foundItem = _items[nextIndex];\n        } else if (reloop) {\n          foundItem = backwards ? last() : first();\n          nextIndex = indexOf(foundItem);\n        }\n\n        if ((foundItem === null) || (nextIndex === limit)) return null;\n        if (validate(foundItem)) return foundItem;\n\n        if (angular.isUndefined(limit)) limit = nextIndex;\n\n        curIndex = nextIndex;\n      }\n    }\n  }\n\n\n})();\n(function(){\n\"use strict\";\n\n\nmdMediaFactory.$inject = [\"$mdConstant\", \"$rootScope\", \"$window\"];angular.module('material.core')\n.factory('$mdMedia', mdMediaFactory);\n\n/**\n * @ngdoc service\n * @name $mdMedia\n * @module material.core\n *\n * @description\n * `$mdMedia` is used to evaluate whether a given media query is true or false given the\n * current device's screen / window size. The media query will be re-evaluated on resize, allowing\n * you to register a watch.\n *\n * `$mdMedia` also has pre-programmed support for media queries that match the layout breakpoints:\n *\n *  <table class=\"md-api-table\">\n *    <thead>\n *    <tr>\n *      <th>Breakpoint</th>\n *      <th>mediaQuery</th>\n *    </tr>\n *    </thead>\n *    <tbody>\n *    <tr>\n *      <td>xs</td>\n *      <td>(max-width: 599px)</td>\n *    </tr>\n *    <tr>\n *      <td>gt-xs</td>\n *      <td>(min-width: 600px)</td>\n *    </tr>\n *    <tr>\n *      <td>sm</td>\n *      <td>(min-width: 600px) and (max-width: 959px)</td>\n *    </tr>\n *    <tr>\n *      <td>gt-sm</td>\n *      <td>(min-width: 960px)</td>\n *    </tr>\n *    <tr>\n *      <td>md</td>\n *      <td>(min-width: 960px) and (max-width: 1279px)</td>\n *    </tr>\n *    <tr>\n *      <td>gt-md</td>\n *      <td>(min-width: 1280px)</td>\n *    </tr>\n *    <tr>\n *      <td>lg</td>\n *      <td>(min-width: 1280px) and (max-width: 1919px)</td>\n *    </tr>\n *    <tr>\n *      <td>gt-lg</td>\n *      <td>(min-width: 1920px)</td>\n *    </tr>\n *    <tr>\n *      <td>xl</td>\n *      <td>(min-width: 1920px)</td>\n *    </tr>\n *    <tr>\n *      <td>landscape</td>\n *      <td>landscape</td>\n *    </tr>\n *    <tr>\n *      <td>portrait</td>\n *      <td>portrait</td>\n *    </tr>\n *    <tr>\n *      <td>print</td>\n *      <td>print</td>\n *    </tr>\n *    </tbody>\n *  </table>\n *\n *  See Material Design's <a href=\"https://material.google.com/layout/responsive-ui.html\">Layout - Adaptive UI</a> for more details.\n *\n *  <a href=\"https://material.io/archive/guidelines/layout/responsive-ui.html#\">\n *  <img src=\"https://material-design.storage.googleapis.com/publish/material_v_4/material_ext_publish/0B8olV15J7abPSGFxemFiQVRtb1k/layout_adaptive_breakpoints_01.png\" width=\"100%\" height=\"100%\"></img>\n *  </a>\n *\n * @returns {boolean} a boolean representing whether or not the given media query is true or false.\n *\n * @usage\n * <hljs lang=\"js\">\n * app.controller('MyController', function($mdMedia, $scope) {\n *   $scope.$watch(function() { return $mdMedia('lg'); }, function(big) {\n *     $scope.bigScreen = big;\n *   });\n *\n *   $scope.screenIsSmall = $mdMedia('sm');\n *   $scope.customQuery = $mdMedia('(min-width: 1234px)');\n *   $scope.anotherCustom = $mdMedia('max-width: 300px');\n * });\n * </hljs>\n */\n\n/* @ngInject */\nfunction mdMediaFactory($mdConstant, $rootScope, $window) {\n  var queries = {};\n  var mqls = {};\n  var results = {};\n  var normalizeCache = {};\n\n  $mdMedia.getResponsiveAttribute = getResponsiveAttribute;\n  $mdMedia.getQuery = getQuery;\n  $mdMedia.watchResponsiveAttributes = watchResponsiveAttributes;\n\n  return $mdMedia;\n\n  function $mdMedia(query) {\n    var validated = queries[query];\n    if (angular.isUndefined(validated)) {\n      validated = queries[query] = validate(query);\n    }\n\n    var result = results[validated];\n    if (angular.isUndefined(result)) {\n      result = add(validated);\n    }\n\n    return result;\n  }\n\n  function validate(query) {\n    return $mdConstant.MEDIA[query] ||\n           ((query.charAt(0) !== '(') ? ('(' + query + ')') : query);\n  }\n\n  function add(query) {\n    var result = mqls[query];\n    if (!result) {\n      result = mqls[query] = $window.matchMedia(query);\n    }\n\n    result.addListener(onQueryChange);\n    return (results[result.media] = !!result.matches);\n  }\n\n  function onQueryChange(query) {\n    $rootScope.$evalAsync(function() {\n      results[query.media] = !!query.matches;\n    });\n  }\n\n  function getQuery(name) {\n    return mqls[name];\n  }\n\n  function getResponsiveAttribute(attrs, attrName) {\n    for (var i = 0; i < $mdConstant.MEDIA_PRIORITY.length; i++) {\n      var mediaName = $mdConstant.MEDIA_PRIORITY[i];\n      if (!mqls[queries[mediaName]].matches) {\n        continue;\n      }\n\n      var normalizedName = getNormalizedName(attrs, attrName + '-' + mediaName);\n      if (attrs[normalizedName]) {\n        return attrs[normalizedName];\n      }\n    }\n\n    // fallback on unprefixed\n    return attrs[getNormalizedName(attrs, attrName)];\n  }\n\n  function watchResponsiveAttributes(attrNames, attrs, watchFn) {\n    var unwatchFns = [];\n    attrNames.forEach(function(attrName) {\n      var normalizedName = getNormalizedName(attrs, attrName);\n      if (angular.isDefined(attrs[normalizedName])) {\n        unwatchFns.push(\n            attrs.$observe(normalizedName, angular.bind(void 0, watchFn, null)));\n      }\n\n      for (var mediaName in $mdConstant.MEDIA) {\n        normalizedName = getNormalizedName(attrs, attrName + '-' + mediaName);\n        if (angular.isDefined(attrs[normalizedName])) {\n          unwatchFns.push(\n              attrs.$observe(normalizedName, angular.bind(void 0, watchFn, mediaName)));\n        }\n      }\n    });\n\n    return function unwatch() {\n      unwatchFns.forEach(function(fn) { fn(); });\n    };\n  }\n\n  // Improves performance dramatically\n  function getNormalizedName(attrs, attrName) {\n    return normalizeCache[attrName] ||\n        (normalizeCache[attrName] = attrs.$normalize(attrName));\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\nangular\n  .module('material.core')\n  .config([\"$provide\", function($provide) {\n    $provide.decorator('$mdUtil', ['$delegate', function ($delegate) {\n\n      // Inject the prefixer into our original $mdUtil service.\n      $delegate.prefixer = MdPrefixer;\n\n      return $delegate;\n    }]);\n  }]);\n\n/**\n * @param {string|string[]} initialAttributes\n * @param {boolean} buildSelector\n * @return {string|string[]|{buildSelector: (function(string|string[]): string),\n *   buildList: (function(string|string[]): string[]),\n *   hasAttribute: (function(JQLite|Element, string): HTMLElement),\n *   removeAttribute: (function(JQLite|Element, string): void)}}\n * @constructor\n */\nfunction MdPrefixer(initialAttributes, buildSelector) {\n  var PREFIXES = ['data', 'x'];\n\n  if (initialAttributes) {\n    // The prefixer also accepts attributes as a parameter, and immediately builds a list or selector for\n    // the specified attributes.\n    return buildSelector ? _buildSelector(initialAttributes) : _buildList(initialAttributes);\n  }\n\n  return {\n    buildList: _buildList,\n    buildSelector: _buildSelector,\n    hasAttribute: _hasAttribute,\n    removeAttribute: _removeAttribute\n  };\n\n  function _buildList(attributes) {\n    attributes = angular.isArray(attributes) ? attributes : [attributes];\n\n    attributes.forEach(function(item) {\n      PREFIXES.forEach(function(prefix) {\n        attributes.push(prefix + '-' + item);\n      });\n    });\n\n    return attributes;\n  }\n\n  function _buildSelector(attributes) {\n    attributes = angular.isArray(attributes) ? attributes : [attributes];\n\n    return _buildList(attributes)\n      .map(function(item) {\n        return '[' + item + ']';\n      })\n      .join(',');\n  }\n\n  function _hasAttribute(element, attribute) {\n    element = _getNativeElement(element);\n\n    if (!element) {\n      return false;\n    }\n\n    var prefixedAttrs = _buildList(attribute);\n\n    for (var i = 0; i < prefixedAttrs.length; i++) {\n      if (element.hasAttribute(prefixedAttrs[i])) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n\n  function _removeAttribute(element, attribute) {\n    element = _getNativeElement(element);\n\n    if (!element) {\n      return;\n    }\n\n    _buildList(attribute).forEach(function(prefixedAttribute) {\n      element.removeAttribute(prefixedAttribute);\n    });\n  }\n\n  /**\n   * Transforms a jqLite or DOM element into a HTML element.\n   * This is useful when supporting jqLite elements and DOM elements at\n   * same time.\n   * @param element {JQLite|Element} Element to be parsed\n   * @returns {HTMLElement} Parsed HTMLElement\n   */\n  function _getNativeElement(element) {\n    element =  element[0] || element;\n\n    if (element.nodeType) {\n      return element;\n    }\n  }\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n/*\n * This var has to be outside the angular factory, otherwise when\n * there are multiple material apps on the same page, each app\n * will create its own instance of this array and the app's IDs\n * will not be unique.\n */\nUtilFactory.$inject = [\"$document\", \"$timeout\", \"$compile\", \"$rootScope\", \"$$mdAnimate\", \"$interpolate\", \"$log\", \"$rootElement\", \"$window\", \"$$rAF\"];\nvar nextUniqueId = 0, isIos, isAndroid, isFirefox;\n\n// Support material-tools builds.\nif (window.navigator) {\n  var userAgent = window.navigator.userAgent || window.navigator.vendor || window.opera;\n  isIos = userAgent.match(/ipad|iphone|ipod/i);\n  isAndroid = userAgent.match(/android/i);\n  isFirefox = userAgent.match(/(firefox|minefield)/i);\n}\n\n/**\n * @ngdoc module\n * @name material.core.util\n * @description\n * Util\n */\nangular\n.module('material.core')\n.factory('$mdUtil', UtilFactory);\n\n/**\n * @ngInject\n */\nfunction UtilFactory($document, $timeout, $compile, $rootScope, $$mdAnimate, $interpolate, $log,\n                     $rootElement, $window, $$rAF) {\n  // Setup some core variables for the processTemplate method\n  var startSymbol = $interpolate.startSymbol(),\n    endSymbol = $interpolate.endSymbol(),\n    usesStandardSymbols = ((startSymbol === '{{') && (endSymbol === '}}'));\n\n  // Polyfill document.contains for IE11.\n  document.contains || (document.contains = function (node) {\n    return document.body.contains(node);\n  });\n\n  /**\n   * Checks if the target element has the requested style by key\n   * @param {DOMElement|JQLite} target Target element\n   * @param {string} key Style key\n   * @param {string=} expectedVal Optional expected value\n   * @returns {boolean} Whether the target element has the style or not\n   */\n  var hasComputedStyle = function (target, key, expectedVal) {\n    var hasValue = false;\n\n    if (target && target.length) {\n      var computedStyles = $window.getComputedStyle(target[0]);\n      hasValue = angular.isDefined(computedStyles[key]) &&\n        (expectedVal ? computedStyles[key] == expectedVal : true);\n    }\n\n    return hasValue;\n  };\n\n  function validateCssValue(value) {\n    return !value ? '0' :\n      hasPx(value) || hasPercent(value) ? value : value + 'px';\n  }\n\n  function hasPx(value) {\n    return String(value).indexOf('px') > -1;\n  }\n\n  function hasPercent(value) {\n    return String(value).indexOf('%') > -1;\n  }\n\n  var $mdUtil = {\n    dom: {},\n    isIos: isIos,\n    isAndroid: isAndroid,\n    now: window.performance && window.performance.now ?\n      angular.bind(window.performance, window.performance.now) : Date.now || function() {\n      return new Date().getTime();\n    },\n\n    /**\n     * Cross-version compatibility method to retrieve an option of a ngModel controller,\n     * which supports the breaking changes in the AngularJS snapshot (SHA 87a2ff76af5d0a9268d8eb84db5755077d27c84c).\n     * @param {!ngModel.NgModelController} ngModelCtrl\n     * @param {!string} optionName\n     * @returns {string|number|boolean|Object|undefined}\n     */\n    getModelOption: function (ngModelCtrl, optionName) {\n      if (!ngModelCtrl.$options) {\n        return;\n      }\n\n      var $options = ngModelCtrl.$options;\n\n      // The newer versions of AngularJS introduced a getOption function and made the option values\n      // no longer visible on the $options object.\n      return $options.getOption ? $options.getOption(optionName) : $options[optionName];\n    },\n\n    /**\n     * Determines the current 'dir'ectional value based on the value of 'dir'\n     * attribute of the element. If that is not defined, it will try to use\n     * a 'dir' attribute of the body or html tag.\n     *\n     * @param {Object=} attrs a hash object with key-value pairs of normalized\n     *     attribute names and their corresponding attribute values.\n     * @returns {boolean} true if the element's passed in attributes,\n     *     the document, or the body indicates RTL mode, false otherwise.\n     */\n    isRtl: function(attrs) {\n      var dir = angular.isDefined(attrs) && attrs.hasOwnProperty('dir') && attrs.dir;\n\n      switch (dir) {\n        case 'ltr':\n          return false;\n\n        case 'rtl':\n          return true;\n      }\n\n      return ($document[0].dir === 'rtl' || $document[0].body.dir === 'rtl');\n    },\n\n    /**\n     * Bi-directional accessor/mutator used to easily update an element's\n     * property based on the current 'dir'ectional value.\n     */\n    bidi: function(element, property, lValue, rValue) {\n      var ltr = !this.isRtl();\n\n      // If accessor\n      if (arguments.length == 0) return ltr ? 'ltr' : 'rtl';\n\n      // If mutator\n      var elem = angular.element(element);\n\n      if (ltr && angular.isDefined(lValue)) {\n        elem.css(property, validateCssValue(lValue));\n      }\n      else if (!ltr && angular.isDefined(rValue)) {\n        elem.css(property, validateCssValue(rValue));\n      }\n    },\n\n    bidiProperty: function (element, lProperty, rProperty, value) {\n      var ltr = !this.isRtl();\n\n      var elem = angular.element(element);\n\n      if (ltr && angular.isDefined(lProperty)) {\n        elem.css(lProperty, validateCssValue(value));\n        elem.css(rProperty, '');\n      }\n      else if (!ltr && angular.isDefined(rProperty)) {\n        elem.css(rProperty, validateCssValue(value));\n        elem.css(lProperty, '');\n      }\n    },\n\n    clientRect: function(element, offsetParent, isOffsetRect) {\n      var node = getNode(element);\n      offsetParent = getNode(offsetParent || node.offsetParent || document.body);\n      var nodeRect = node.getBoundingClientRect();\n\n      // The user can ask for an offsetRect: a rect relative to the offsetParent,\n      // or a clientRect: a rect relative to the page\n      var offsetRect = isOffsetRect ?\n        offsetParent.getBoundingClientRect() :\n        {left: 0, top: 0, width: 0, height: 0};\n      return {\n        left: nodeRect.left - offsetRect.left,\n        top: nodeRect.top - offsetRect.top,\n        width: nodeRect.width,\n        height: nodeRect.height\n      };\n    },\n    offsetRect: function(element, offsetParent) {\n      return $mdUtil.clientRect(element, offsetParent, true);\n    },\n\n    /**\n     * Annoying method to copy nodes to an array, thanks to IE.\n     * @param nodes\n     * @return {Array}\n     */\n    nodesToArray: function(nodes) {\n      var results = [], i;\n      nodes = nodes || [];\n\n      for (i = 0; i < nodes.length; ++i) {\n        results.push(nodes.item(i));\n      }\n      return results;\n    },\n\n    /**\n     * Determines the absolute position of the viewport.\n     * Useful when making client rectangles absolute.\n     * @returns {number}\n     */\n    getViewportTop: function() {\n      // If body scrolling is disabled, then use the cached viewport top value, otherwise get it\n      // fresh from the $window.\n      if ($mdUtil.disableScrollAround._count && $mdUtil.disableScrollAround._viewPortTop) {\n        return $mdUtil.disableScrollAround._viewPortTop;\n      } else {\n        return $window.scrollY || $window.pageYOffset || 0;\n      }\n    },\n\n    /**\n     * Finds the proper focus target by searching the DOM.\n     *\n     * @param {!JQLite} containerEl\n     * @param {string=} attributeVal\n     * @returns {JQLite|undefined}\n     */\n    findFocusTarget: function(containerEl, attributeVal) {\n      var AUTO_FOCUS = this.prefixer('md-autofocus', true);\n      var elToFocus;\n\n      elToFocus = scanForFocusable(containerEl, attributeVal || AUTO_FOCUS);\n\n      // Scan for fallback to 'universal' API\n      if (!elToFocus) {\n        elToFocus = scanForFocusable(containerEl, AUTO_FOCUS);\n      }\n\n      return elToFocus;\n\n      /**\n       * Can target and nested children for specified Selector (attribute)\n       * whose value may be an expression that evaluates to True/False.\n       * @param {!JQLite} target\n       * @param {!string} selector\n       * @return {JQLite|undefined}\n       */\n      function scanForFocusable(target, selector) {\n        var elFound, items = target[0].querySelectorAll(selector);\n\n        // Find the last child element with the focus attribute\n        if (items && items.length) {\n          items.length && angular.forEach(items, function(it) {\n            it = angular.element(it);\n\n            // Check the element for the md-autofocus class to ensure any associated expression\n            // evaluated to true.\n            var isFocusable = it.hasClass('md-autofocus');\n            if (isFocusable) elFound = it;\n          });\n        }\n        return elFound;\n      }\n    },\n\n    /**\n     * Disables scroll around the passed parent element.\n     * @param {Element|JQLite=} element Origin Element (not used)\n     * @param {Element|JQLite=} parent Element to disable scrolling within.\n     *   Defaults to body if none supplied.\n     * @param {Object=} options Object of options to modify functionality\n     *   - disableScrollMask Boolean of whether or not to create a scroll mask element or\n     *     use the passed parent element.\n     */\n    disableScrollAround: function(element, parent, options) {\n      options = options || {};\n\n      $mdUtil.disableScrollAround._count = Math.max(0, $mdUtil.disableScrollAround._count || 0);\n      $mdUtil.disableScrollAround._count++;\n\n      if ($mdUtil.disableScrollAround._restoreScroll) {\n        return $mdUtil.disableScrollAround._restoreScroll;\n      }\n\n      var body = $document[0].body;\n      var restoreBody = disableBodyScroll();\n      var restoreElement = disableElementScroll(parent, options);\n\n      return $mdUtil.disableScrollAround._restoreScroll = function() {\n        if (--$mdUtil.disableScrollAround._count <= 0) {\n          delete $mdUtil.disableScrollAround._viewPortTop;\n          restoreBody();\n          restoreElement();\n          delete $mdUtil.disableScrollAround._restoreScroll;\n        }\n      };\n\n      /**\n       * Creates a virtual scrolling mask to prevent touchmove, keyboard, scrollbar clicking,\n       * and wheel events.\n       * @param {!Element|!JQLite} elementToDisable\n       * @param {Object=} scrollMaskOptions Object of options to modify functionality\n       *   - disableScrollMask Boolean of whether or not to create a scroll mask element or\n       *     use the passed parent element.\n       * @returns {Function}\n       */\n      function disableElementScroll(elementToDisable, scrollMaskOptions) {\n        var scrollMask;\n        var wrappedElementToDisable = angular.element(elementToDisable || body);\n\n        if (scrollMaskOptions.disableScrollMask) {\n          scrollMask = wrappedElementToDisable;\n        } else {\n          scrollMask = angular.element(\n            '<div class=\"md-scroll-mask\">' +\n            '  <div class=\"md-scroll-mask-bar\"></div>' +\n            '</div>');\n          wrappedElementToDisable.append(scrollMask);\n        }\n\n        /**\n         * @param {Event} $event\n         */\n        function preventDefault($event) {\n          $event.preventDefault();\n        }\n\n        scrollMask.on('wheel touchmove', preventDefault);\n\n        return function restoreElementScroll() {\n          scrollMask.off('wheel touchmove', preventDefault);\n\n          if (!scrollMaskOptions.disableScrollMask && scrollMask[0].parentNode) {\n            scrollMask[0].parentNode.removeChild(scrollMask[0]);\n          }\n        };\n      }\n\n      // Converts the body to a position fixed block and translate it to the proper scroll position\n      function disableBodyScroll() {\n        var documentElement = $document[0].documentElement;\n\n        var prevDocumentStyle = documentElement.style.cssText || '';\n        var prevBodyStyle = body.style.cssText || '';\n\n        var viewportTop = $mdUtil.getViewportTop();\n        $mdUtil.disableScrollAround._viewPortTop = viewportTop;\n        var clientWidth = body.clientWidth;\n        var hasVerticalScrollbar = body.scrollHeight > body.clientHeight + 1;\n\n        // Scroll may be set on <html> element (for example by overflow-y: scroll)\n        // but Chrome is reporting the scrollTop position always on <body>.\n        // scrollElement will allow to restore the scrollTop position to proper target.\n        var scrollElement = documentElement.scrollTop > 0 ? documentElement : body;\n\n        if (hasVerticalScrollbar) {\n          angular.element(body).css({\n            position: 'fixed',\n            width: '100%',\n            top: -viewportTop + 'px'\n          });\n        }\n\n        if (body.clientWidth < clientWidth) {\n          body.style.overflow = 'hidden';\n        }\n\n        return function restoreScroll() {\n          // Reset the inline style CSS to the previous.\n          body.style.cssText = prevBodyStyle;\n          documentElement.style.cssText = prevDocumentStyle;\n\n          // The scroll position while being fixed\n          scrollElement.scrollTop = viewportTop;\n        };\n      }\n\n    },\n\n    enableScrolling: function() {\n      var restoreFn = this.disableScrollAround._restoreScroll;\n      restoreFn && restoreFn();\n    },\n\n    floatingScrollbars: function() {\n      if (this.floatingScrollbars.cached === undefined) {\n        var tempNode = angular.element('<div><div></div></div>').css({\n          width: '100%',\n          'z-index': -1,\n          position: 'absolute',\n          height: '35px',\n          'overflow-y': 'scroll'\n        });\n        tempNode.children().css('height', '60px');\n\n        $document[0].body.appendChild(tempNode[0]);\n        this.floatingScrollbars.cached =\n          (tempNode[0].offsetWidth === tempNode[0].childNodes[0].offsetWidth);\n        tempNode.remove();\n      }\n      return this.floatingScrollbars.cached;\n    },\n\n    /**\n     * Mobile safari only allows you to set focus in click event listeners.\n     * @param {Element|JQLite} element to focus\n     */\n    forceFocus: function(element) {\n      var node = element[0] || element;\n\n      document.addEventListener('click', function focusOnClick(ev) {\n        if (ev.target === node && ev.$focus) {\n          node.focus();\n          ev.stopImmediatePropagation();\n          ev.preventDefault();\n          node.removeEventListener('click', focusOnClick);\n        }\n      }, true);\n\n      var newEvent = document.createEvent('MouseEvents');\n      newEvent.initMouseEvent('click', false, true, window, {}, 0, 0, 0, 0,\n        false, false, false, false, 0, null);\n      newEvent.$material = true;\n      newEvent.$focus = true;\n      node.dispatchEvent(newEvent);\n    },\n\n    /**\n     * facade to build md-backdrop element with desired styles\n     * NOTE: Use $compile to trigger backdrop postLink function\n     */\n    createBackdrop: function(scope, addClass) {\n      return $compile($mdUtil.supplant('<md-backdrop class=\"{0}\">', [addClass]))(scope);\n    },\n\n    /**\n     * supplant() method from Crockford's `Remedial Javascript`\n     * Equivalent to use of $interpolate; without dependency on\n     * interpolation symbols and scope. Note: the '{<token>}' can\n     * be property names, property chains, or array indices.\n     */\n    supplant: function(template, values, pattern) {\n      pattern = pattern || /\\{([^{}]*)\\}/g;\n      return template.replace(pattern, function(a, b) {\n        var p = b.split('.'),\n          r = values;\n        try {\n          for (var s in p) {\n            if (p.hasOwnProperty(s)) {\n              r = r[p[s]];\n            }\n          }\n        } catch (e) {\n          r = a;\n        }\n        return (typeof r === 'string' || typeof r === 'number') ? r : a;\n      });\n    },\n\n    fakeNgModel: function() {\n      return {\n        $fake: true,\n        $setTouched: angular.noop,\n        $setViewValue: function(value) {\n          this.$viewValue = value;\n          this.$render(value);\n          this.$viewChangeListeners.forEach(function(cb) {\n            cb();\n          });\n        },\n        $isEmpty: function(value) {\n          return ('' + value).length === 0;\n        },\n        $parsers: [],\n        $formatters: [],\n        $viewChangeListeners: [],\n        $render: angular.noop\n      };\n    },\n\n    /**\n     * @param {Function} func original function to be debounced\n     * @param {number} wait number of milliseconds to delay (since last debounce reset).\n     *  Default value 10 msecs.\n     * @param {Object} scope in which to apply the function after debouncing ends\n     * @param {boolean} invokeApply should the $timeout trigger $digest() dirty checking\n     * @return {Function} A function, that, as long as it continues to be invoked, will not be\n     *  triggered. The function will be called after it stops being called for N milliseconds.\n     */\n    debounce: function(func, wait, scope, invokeApply) {\n      var timer;\n\n      return function debounced() {\n        var context = scope,\n            args = Array.prototype.slice.call(arguments);\n\n        $timeout.cancel(timer);\n        timer = $timeout(function() {\n\n          timer = undefined;\n          func.apply(context, args);\n\n        }, wait || 10, invokeApply);\n      };\n    },\n\n    /**\n     * The function will not be called unless it has been more than `delay` milliseconds since the\n     * last call.\n     * @param {Function} func original function to throttle\n     * @param {number} delay number of milliseconds to delay\n     * @return {Function} a function that can only be triggered every `delay` milliseconds.\n     */\n    throttle: function throttle(func, delay) {\n      var recent;\n      return function throttled() {\n        var context = this;\n        var args = arguments;\n        var now = $mdUtil.now();\n\n        if (!recent || (now - recent > delay)) {\n          func.apply(context, args);\n          recent = now;\n        }\n      };\n    },\n\n    /**\n     * Measures the number of milliseconds taken to run the provided callback\n     * function. Uses a high-precision timer if available.\n     */\n    time: function time(cb) {\n      var start = $mdUtil.now();\n      cb();\n      return $mdUtil.now() - start;\n    },\n\n    /**\n     * Create an implicit getter that caches its `getter()`\n     * lookup value\n     */\n    valueOnUse : function (scope, key, getter) {\n      var value = null, args = Array.prototype.slice.call(arguments);\n      var params = (args.length > 3) ? args.slice(3) : [];\n\n      Object.defineProperty(scope, key, {\n        get: function () {\n          if (value === null) value = getter.apply(scope, params);\n          return value;\n        }\n      });\n    },\n\n    /**\n     * Get a unique ID.\n     *\n     * @returns {string} an unique numeric string\n     */\n    nextUid: function() {\n      return '' + nextUniqueId++;\n    },\n\n    /**\n     * Stop watchers and events from firing on a scope without destroying it,\n     * by disconnecting it from its parent and its siblings' linked lists.\n     * @param {Object} scope to disconnect\n     */\n    disconnectScope: function disconnectScope(scope) {\n      if (!scope) return;\n\n      // we can't destroy the root scope or a scope that has been already destroyed\n      if (scope.$root === scope) return;\n      if (scope.$$destroyed) return;\n\n      var parent = scope.$parent;\n      scope.$$disconnected = true;\n\n      // See Scope.$destroy\n      if (parent.$$childHead === scope) parent.$$childHead = scope.$$nextSibling;\n      if (parent.$$childTail === scope) parent.$$childTail = scope.$$prevSibling;\n      if (scope.$$prevSibling) scope.$$prevSibling.$$nextSibling = scope.$$nextSibling;\n      if (scope.$$nextSibling) scope.$$nextSibling.$$prevSibling = scope.$$prevSibling;\n\n      scope.$$nextSibling = scope.$$prevSibling = null;\n\n    },\n\n    /**\n     * Undo the effects of disconnectScope().\n     * @param {Object} scope to reconnect\n     */\n    reconnectScope: function reconnectScope(scope) {\n      if (!scope) return;\n\n      // we can't disconnect the root node or scope already disconnected\n      if (scope.$root === scope) return;\n      if (!scope.$$disconnected) return;\n\n      var child = scope;\n\n      var parent = child.$parent;\n      child.$$disconnected = false;\n      // See Scope.$new for this logic...\n      child.$$prevSibling = parent.$$childTail;\n      if (parent.$$childHead) {\n        parent.$$childTail.$$nextSibling = child;\n        parent.$$childTail = child;\n      } else {\n        parent.$$childHead = parent.$$childTail = child;\n      }\n    },\n\n    /**\n     * Get an element's siblings matching a given tag name.\n     *\n     * @param {JQLite|angular.element|HTMLElement} element Element to start walking the DOM from\n     * @param {string} tagName HTML tag name to match against\n     * @returns {Object[]} JQLite\n     */\n    getSiblings: function getSiblings(element, tagName) {\n      var upperCasedTagName = tagName.toUpperCase();\n      if (element instanceof angular.element) {\n        element = element[0];\n      }\n      var siblings = Array.prototype.filter.call(element.parentNode.children, function(node) {\n        return element !== node && node.tagName.toUpperCase() === upperCasedTagName;\n      });\n      return siblings.map(function (sibling) {\n        return angular.element(sibling);\n      });\n    },\n\n    /**\n     * getClosest replicates jQuery.closest() to walk up the DOM tree until it finds a matching\n     * nodeName.\n     *\n     * @param {Node} el Element to start walking the DOM from\n     * @param {string|function} validateWith If a string is passed, it will be evaluated against\n     * each of the parent nodes' tag name. If a function is passed, the loop will call it with each\n     * of the parents and will use the return value to determine whether the node is a match.\n     * @param {boolean=} onlyParent Only start checking from the parent element, not `el`.\n     * @returns {Node|null} closest matching parent Node or null if not found\n     */\n    getClosest: function getClosest(el, validateWith, onlyParent) {\n      if (angular.isString(validateWith)) {\n        var tagName = validateWith.toUpperCase();\n        validateWith = function(el) {\n          return el.nodeName.toUpperCase() === tagName;\n        };\n      }\n\n      if (el instanceof angular.element) el = el[0];\n      if (onlyParent) el = el.parentNode;\n      if (!el) return null;\n\n      do {\n        if (validateWith(el)) {\n          return el;\n        }\n      } while (el = el.parentNode);\n\n      return null;\n    },\n\n    /**\n     * Build polyfill for the Node.contains feature (if needed)\n     * @param {Node} node\n     * @param {Node} child\n     * @returns {Node}\n     */\n    elementContains: function(node, child) {\n      var hasContains = (window.Node && window.Node.prototype && Node.prototype.contains);\n      var findFn = hasContains ? angular.bind(node, node.contains) : angular.bind(node, function(arg) {\n        // compares the positions of two nodes and returns a bitmask\n        return (node === child) || !!(this.compareDocumentPosition(arg) & 16);\n      });\n\n      return findFn(child);\n    },\n\n    /**\n     * Functional equivalent for $element.filter(‘md-bottom-sheet’)\n     * useful with interimElements where the element and its container are important...\n     *\n     * @param {JQLite} element to scan\n     * @param {string} nodeName of node to find (e.g. 'md-dialog')\n     * @param {boolean=} scanDeep optional flag to allow deep scans; defaults to 'false'.\n     * @param {boolean=} warnNotFound optional flag to enable log warnings; defaults to false\n     */\n    extractElementByName: function(element, nodeName, scanDeep, warnNotFound) {\n      var found = scanTree(element);\n      if (!found && !!warnNotFound) {\n        $log.warn($mdUtil.supplant(\"Unable to find node '{0}' in element '{1}'.\",[nodeName, element[0].outerHTML]));\n      }\n\n      return angular.element(found || element);\n\n      /**\n       * Breadth-First tree scan for element with matching `nodeName`\n       */\n      function scanTree(element) {\n        return scanLevel(element) || (scanDeep ? scanChildren(element) : null);\n      }\n\n      /**\n       * Case-insensitive scan of current elements only (do not descend).\n       */\n      function scanLevel(element) {\n        if (element) {\n          for (var i = 0, len = element.length; i < len; i++) {\n            if (element[i].nodeName.toLowerCase() === nodeName) {\n              return element[i];\n            }\n          }\n        }\n        return null;\n      }\n\n      /**\n       * Scan children of specified node\n       */\n      function scanChildren(element) {\n        var found;\n        if (element) {\n          for (var i = 0, len = element.length; i < len; i++) {\n            var target = element[i];\n            if (!found) {\n              for (var j = 0, numChild = target.childNodes.length; j < numChild; j++) {\n                found = found || scanTree([target.childNodes[j]]);\n              }\n            }\n          }\n        }\n        return found;\n      }\n\n    },\n\n    /**\n     * Give optional properties with no value a boolean true if attr provided or false otherwise\n     */\n    initOptionalProperties: function(scope, attr, defaults) {\n      defaults = defaults || {};\n      angular.forEach(scope.$$isolateBindings, function(binding, key) {\n        if (binding.optional && angular.isUndefined(scope[key])) {\n          var attrIsDefined = angular.isDefined(attr[binding.attrName]);\n          scope[key] = angular.isDefined(defaults[key]) ? defaults[key] : attrIsDefined;\n        }\n      });\n    },\n\n    /**\n     * Alternative to $timeout calls with 0 delay.\n     * nextTick() coalesces all calls within a single frame\n     * to minimize $digest thrashing\n     *\n     * @param {Function} callback function to be called after the tick\n     * @param {boolean=} digest true to call $rootScope.$digest() after callback\n     * @param {Object=} scope associated with callback. If the scope is destroyed, the callback will\n     *  be skipped.\n     * @returns {*}\n     */\n    nextTick: function(callback, digest, scope) {\n      // grab function reference for storing state details\n      var nextTick = $mdUtil.nextTick;\n      var timeout = nextTick.timeout;\n      var queue = nextTick.queue || [];\n\n      // add callback to the queue\n      queue.push({scope: scope, callback: callback});\n\n      // set default value for digest\n      if (digest == null) digest = true;\n\n      // store updated digest/queue values\n      nextTick.digest = nextTick.digest || digest;\n      nextTick.queue = queue;\n\n      // either return existing timeout or create a new one\n      return timeout || (nextTick.timeout = $timeout(processQueue, 0, false));\n\n      /**\n       * Grab a copy of the current queue\n       * Clear the queue for future use\n       * Process the existing queue\n       * Trigger digest if necessary\n       */\n      function processQueue() {\n        var queue = nextTick.queue;\n        var digest = nextTick.digest;\n\n        nextTick.queue = [];\n        nextTick.timeout = null;\n        nextTick.digest = false;\n\n        queue.forEach(function(queueItem) {\n          var skip = queueItem.scope && queueItem.scope.$$destroyed;\n          if (!skip) {\n            queueItem.callback();\n          }\n        });\n\n        if (digest) $rootScope.$digest();\n      }\n    },\n\n    /**\n     * Processes a template and replaces the start/end symbols if the application has\n     * overridden them.\n     *\n     * @param template The template to process whose start/end tags may be replaced.\n     * @returns {*}\n     */\n    processTemplate: function(template) {\n      if (usesStandardSymbols) {\n        return template;\n      } else {\n        if (!template || !angular.isString(template)) return template;\n        return template.replace(/\\{\\{/g, startSymbol).replace(/}}/g, endSymbol);\n      }\n    },\n\n    /**\n     * Scan up dom hierarchy for enabled parent;\n     */\n    getParentWithPointerEvents: function (element) {\n      var parent = element.parent();\n\n      // jqLite might return a non-null, but still empty, parent; so check for parent and length\n      while (hasComputedStyle(parent, 'pointer-events', 'none')) {\n        parent = parent.parent();\n      }\n\n      return parent;\n    },\n\n    getNearestContentElement: function (element) {\n      var current = element.parent()[0];\n      // Look for the nearest parent md-content, stopping at the rootElement.\n      while (current && current !== $rootElement[0] && current !== document.body && current.nodeName.toUpperCase() !== 'MD-CONTENT') {\n        current = current.parentNode;\n      }\n      return current;\n    },\n\n    /**\n     * Checks if the current browser is natively supporting the `sticky` position.\n     * @returns {string} supported sticky property name\n     */\n    checkStickySupport: function() {\n      var stickyProp;\n      var testEl = angular.element('<div>');\n      $document[0].body.appendChild(testEl[0]);\n\n      var stickyProps = ['sticky', '-webkit-sticky'];\n      for (var i = 0; i < stickyProps.length; ++i) {\n        testEl.css({\n          position: stickyProps[i],\n          top: 0,\n          'z-index': 2\n        });\n\n        if (testEl.css('position') == stickyProps[i]) {\n          stickyProp = stickyProps[i];\n          break;\n        }\n      }\n\n      testEl.remove();\n\n      return stickyProp;\n    },\n\n    /**\n     * Parses an attribute value, mostly a string.\n     * By default checks for negated values and returns `false´ if present.\n     * Negated values are: (native falsy) and negative strings like:\n     * `false` or `0`.\n     * @param value Attribute value which should be parsed.\n     * @param negatedCheck When set to false, won't check for negated values.\n     * @returns {boolean}\n     */\n    parseAttributeBoolean: function(value, negatedCheck) {\n      return value === '' || !!value && (negatedCheck === false || value !== 'false' && value !== '0');\n    },\n\n    hasComputedStyle: hasComputedStyle,\n\n    /**\n     * Returns true if the parent form of the element has been submitted.\n     * @param element An AngularJS or HTML5 element.\n     * @returns {boolean}\n     */\n    isParentFormSubmitted: function(element) {\n      var parent = $mdUtil.getClosest(element, 'form');\n      var form = parent ? angular.element(parent).controller('form') : null;\n\n      return form ? form.$submitted : false;\n    },\n\n    /**\n     * Animate the requested element's scrollTop to the requested scrollPosition with basic easing.\n     * @param {!Element} element The element to scroll.\n     * @param {number} scrollEnd The new/final scroll position.\n     * @param {number=} duration Duration of the scroll. Default is 1000ms.\n     */\n    animateScrollTo: function(element, scrollEnd, duration) {\n      var scrollStart = element.scrollTop;\n      var scrollChange = scrollEnd - scrollStart;\n      var scrollingDown = scrollStart < scrollEnd;\n      var startTime = $mdUtil.now();\n\n      $$rAF(scrollChunk);\n\n      function scrollChunk() {\n        var newPosition = calculateNewPosition();\n\n        element.scrollTop = newPosition;\n\n        if (scrollingDown ? newPosition < scrollEnd : newPosition > scrollEnd) {\n          $$rAF(scrollChunk);\n        }\n      }\n\n      function calculateNewPosition() {\n        var easeDuration = duration || 1000;\n        var currentTime = $mdUtil.now() - startTime;\n\n        return ease(currentTime, scrollStart, scrollChange, easeDuration);\n      }\n\n      function ease(currentTime, start, change, duration) {\n        // If the duration has passed (which can occur if our app loses focus due to $$rAF), jump\n        // straight to the proper position\n        if (currentTime > duration) {\n          return start + change;\n        }\n\n        var ts = (currentTime /= duration) * currentTime;\n        var tc = ts * currentTime;\n\n        return start + change * (-2 * tc + 3 * ts);\n      }\n    },\n\n    /**\n     * Provides an easy mechanism for removing duplicates from an array.\n     *\n     *    var myArray = [1, 2, 2, 3, 3, 3, 4, 4, 4, 4];\n     *\n     *    $mdUtil.uniq(myArray) => [1, 2, 3, 4]\n     *\n     * @param {Array} array The array whose unique values should be returned.\n     * @returns {Array|void} A copy of the array containing only unique values.\n     */\n    uniq: function(array) {\n      if (!array) { return; }\n\n      return array.filter(function(value, index, self) {\n        return self.indexOf(value) === index;\n      });\n    },\n\n    /**\n     * Gets the inner HTML content of the given HTMLElement.\n     * Only intended for use with SVG or Symbol elements in IE11.\n     * @param {Element} element\n     * @returns {string} the inner HTML of the element passed in\n     */\n    getInnerHTML: function(element) {\n      // For SVG or Symbol elements, innerHTML returns `undefined` in IE.\n      // Reference: https://stackoverflow.com/q/28129956/633107\n      // The XMLSerializer API is supported on IE11 and is the recommended workaround.\n      var serializer = new XMLSerializer();\n\n      return Array.prototype.map.call(element.childNodes, function (child) {\n        return serializer.serializeToString(child);\n      }).join('');\n    },\n\n    /**\n     * Gets the outer HTML content of the given HTMLElement.\n     * Only intended for use with SVG or Symbol elements in IE11.\n     * @param {Element} element\n     * @returns {string} the outer HTML of the element passed in\n     */\n    getOuterHTML: function(element) {\n      // For SVG or Symbol elements, outerHTML returns `undefined` in IE.\n      // Reference: https://stackoverflow.com/q/29888050/633107\n      // The XMLSerializer API is supported on IE11 and is the recommended workaround.\n      var serializer = new XMLSerializer();\n      return serializer.serializeToString(element);\n    },\n\n    /**\n     * Support: IE 9-11 only\n     * documentMode is an IE-only property\n     * http://msdn.microsoft.com/en-us/library/ie/cc196988(v=vs.85).aspx\n     */\n    msie: window.document.documentMode,\n\n    getTouchAction: function() {\n      var testEl = document.createElement('div');\n      var vendorPrefixes = ['', 'webkit', 'Moz', 'MS', 'ms', 'o'];\n\n      for (var i = 0; i < vendorPrefixes.length; i++) {\n        var prefix = vendorPrefixes[i];\n        var property = prefix ? prefix + 'TouchAction' : 'touchAction';\n        if (angular.isDefined(testEl.style[property])) {\n          return property;\n        }\n      }\n    },\n\n    /**\n     * @param {Event} event the event to calculate the bubble path for\n     * @return {EventTarget[]} the set of nodes that this event could bubble up to\n     */\n    getEventPath: function(event) {\n      var path = [];\n      var currentTarget = event.target;\n      while (currentTarget) {\n        path.push(currentTarget);\n        currentTarget = currentTarget.parentElement;\n      }\n      if (path.indexOf(window) === -1 && path.indexOf(document) === -1)\n        path.push(document);\n      if (path.indexOf(window) === -1)\n        path.push(window);\n      return path;\n    },\n\n    /**\n     * Gets the string the user has entered and removes Regex identifiers\n     * @param {string} term\n     * @returns {string} sanitized string\n     */\n    sanitize: function(term) {\n      if (!term) return term;\n      return term.replace(/[\\\\^$*+?.()|{}[]/g, '\\\\$&');\n    },\n\n    /**********************************************************************************************\n     * The following functions were sourced from\n     * https://github.com/angular/components/blob/3c37e4b1c1cb74a3d0a90d173240fc730d21d9d4/src/cdk/a11y/interactivity-checker/interactivity-checker.ts\n     **********************************************************************************************/\n\n    /**\n     * Gets whether an element is disabled.\n     * @param {HTMLElement} element Element to be checked.\n     * @returns {boolean} Whether the element is disabled.\n     */\n    isDisabled: function(element) {\n      // This does not capture some cases, such as a non-form control with a disabled attribute or\n      // a form control inside of a disabled form, but should capture the most common cases.\n      return element.hasAttribute('disabled');\n    },\n\n    /**\n     * Gets whether an element is visible for the purposes of interactivity.\n     *\n     * This will capture states like `display: none` and `visibility: hidden`, but not things like\n     * being clipped by an `overflow: hidden` parent or being outside the viewport.\n     *\n     * @param {HTMLElement} element\n     * @returns {boolean} Whether the element is visible.\n     */\n    isVisible: function(element) {\n      return $mdUtil.hasGeometry(element) && getComputedStyle(element).visibility === 'visible';\n    },\n\n    /**\n     * Gets whether an element can be reached via Tab key.\n     * Assumes that the element has already been checked with isFocusable.\n     * @param {HTMLElement} element Element to be checked.\n     * @returns {boolean} Whether the element is tabbable.\n     */\n    isTabbable: function(element) {\n      var frameElement = $mdUtil.getFrameElement($mdUtil.getWindow(element));\n\n      if (frameElement) {\n        // Frame elements inherit their tabindex onto all child elements.\n        if ($mdUtil.getTabIndexValue(frameElement) === -1) {\n          return false;\n        }\n\n        // Browsers disable tabbing to an element inside of an invisible frame.\n        if (!$mdUtil.isVisible(frameElement)) {\n          return false;\n        }\n      }\n\n      var nodeName = element.nodeName.toLowerCase();\n      var tabIndexValue = $mdUtil.getTabIndexValue(element);\n\n      if (element.hasAttribute('contenteditable')) {\n        return tabIndexValue !== -1;\n      }\n\n      if (nodeName === 'iframe' || nodeName === 'object') {\n        // The frame or object's content may be tabbable depending on the content, but it's\n        // not possibly to reliably detect the content of the frames. We always consider such\n        // elements as non-tabbable.\n        return false;\n      }\n\n      // In iOS, the browser only considers some specific elements as tabbable.\n      if (isIos && !$mdUtil.isPotentiallyTabbableIOS(element)) {\n        return false;\n      }\n\n      if (nodeName === 'audio') {\n        // Audio elements without controls enabled are never tabbable, regardless\n        // of the tabindex attribute explicitly being set.\n        if (!element.hasAttribute('controls')) {\n          return false;\n        }\n        // Audio elements with controls are by default tabbable unless the\n        // tabindex attribute is set to `-1` explicitly.\n        return tabIndexValue !== -1;\n      }\n\n      if (nodeName === 'video') {\n        // For all video elements, if the tabindex attribute is set to `-1`, the video\n        // is not tabbable. Note: We cannot rely on the default `HTMLElement.tabIndex`\n        // property as that one is set to `-1` in Chrome, Edge and Safari v13.1. The\n        // tabindex attribute is the source of truth here.\n        if (tabIndexValue === -1) {\n          return false;\n        }\n        // If the tabindex is explicitly set, and not `-1` (as per check before), the\n        // video element is always tabbable (regardless of whether it has controls or not).\n        if (tabIndexValue !== null) {\n          return true;\n        }\n        // Otherwise (when no explicit tabindex is set), a video is only tabbable if it\n        // has controls enabled. Firefox is special as videos are always tabbable regardless\n        // of whether there are controls or not.\n        return isFirefox || element.hasAttribute('controls');\n      }\n\n      return element.tabIndex >= 0;\n    },\n\n    /**\n     * Gets whether an element can be focused by the user.\n     * @param {HTMLElement} element Element to be checked.\n     * @returns {boolean} Whether the element is focusable.\n     */\n    isFocusable: function(element) {\n      // Perform checks in order of left to most expensive.\n      // Again, naive approach that does not capture many edge cases and browser quirks.\n      return $mdUtil.isPotentiallyFocusable(element) && !$mdUtil.isDisabled(element) &&\n        $mdUtil.isVisible(element);\n    },\n\n    /**\n     * Gets whether an element is potentially focusable without taking current visible/disabled\n     * state into account.\n     * @param {HTMLElement} element\n     * @returns {boolean}\n     */\n    isPotentiallyFocusable: function(element) {\n      // Inputs are potentially focusable *unless* they're type=\"hidden\".\n      if ($mdUtil.isHiddenInput(element)) {\n        return false;\n      }\n\n      return $mdUtil.isNativeFormElement(element) ||\n        $mdUtil.isAnchorWithHref(element) ||\n        element.hasAttribute('contenteditable') ||\n        $mdUtil.hasValidTabIndex(element);\n    },\n\n    /**\n     * Checks whether the specified element is potentially tabbable on iOS.\n     * @param {HTMLElement} element\n     * @returns {boolean}\n     */\n    isPotentiallyTabbableIOS: function(element) {\n      var nodeName = element.nodeName.toLowerCase();\n        var inputType = nodeName === 'input' && element.type;\n\n      return inputType === 'text'\n        || inputType === 'password'\n        || nodeName === 'select'\n        || nodeName === 'textarea';\n    },\n\n    /**\n     * Returns the parsed tabindex from the element attributes instead of returning the\n     * evaluated tabindex from the browsers defaults.\n     * @param {HTMLElement} element\n     * @returns {null|number}\n     */\n    getTabIndexValue: function(element) {\n      if (!$mdUtil.hasValidTabIndex(element)) {\n        return null;\n      }\n\n      // See browser issue in Gecko https://bugzilla.mozilla.org/show_bug.cgi?id=1128054\n      var tabIndex = parseInt(element.getAttribute('tabindex') || '', 10);\n\n      return isNaN(tabIndex) ? -1 : tabIndex;\n    },\n\n    /**\n     * Gets whether an element has a valid tabindex.\n     * @param {HTMLElement} element\n     * @returns {boolean}\n     */\n    hasValidTabIndex: function(element) {\n      if (!element.hasAttribute('tabindex') || element.tabIndex === undefined) {\n        return false;\n      }\n\n      var tabIndex = element.getAttribute('tabindex');\n\n      // IE11 parses tabindex=\"\" as the value \"-32768\"\n      if (tabIndex == '-32768') {\n        return false;\n      }\n\n      return !!(tabIndex && !isNaN(parseInt(tabIndex, 10)));\n    },\n\n    /**\n     * Checks whether the specified element has any geometry / rectangles.\n     * @param {HTMLElement} element\n     * @returns {boolean}\n     */\n    hasGeometry: function(element) {\n      // Use logic from jQuery to check for an invisible element.\n      // See https://github.com/jquery/jquery/blob/8969732518470a7f8e654d5bc5be0b0076cb0b87/src/css/hiddenVisibleSelectors.js#L9\n      return !!(element.offsetWidth || element.offsetHeight ||\n        (typeof element.getClientRects === 'function' && element.getClientRects().length));\n    },\n\n    /**\n     * Returns the frame element from a window object. Since browsers like MS Edge throw errors if\n     * the frameElement property is being accessed from a different host address, this property\n     * should be accessed carefully.\n     * @param {Window} window\n     * @returns {null|HTMLElement}\n     */\n    getFrameElement: function(window) {\n      try {\n        return window.frameElement;\n      } catch (error) {\n        return null;\n      }\n    },\n\n    /**\n     * Gets the parent window of a DOM node with regards of being inside of an iframe.\n     * @param {HTMLElement} node\n     * @returns {Window}\n     */\n    getWindow: function(node) {\n      // ownerDocument is null if `node` itself *is* a document.\n      return node.ownerDocument && node.ownerDocument.defaultView || window;\n    },\n\n    /**\n     * Gets whether an element's\n     * @param {Node} element\n     * @returns {boolean}\n     */\n    isNativeFormElement: function(element) {\n      var nodeName = element.nodeName.toLowerCase();\n      return nodeName === 'input' ||\n        nodeName === 'select' ||\n        nodeName === 'button' ||\n        nodeName === 'textarea';\n    },\n\n    /**\n     * Gets whether an element is an `<input type=\"hidden\">`.\n     * @param {HTMLElement} element\n     * @returns {boolean}\n     */\n    isHiddenInput: function(element) {\n      return $mdUtil.isInputElement(element) && element.type == 'hidden';\n    },\n\n    /**\n     * Gets whether an element is an anchor that has an href attribute.\n     * @param {HTMLElement} element\n     * @returns {boolean}\n     */\n    isAnchorWithHref: function(element) {\n      return $mdUtil.isAnchorElement(element) && element.hasAttribute('href');\n    },\n\n    /**\n     * Gets whether an element is an input element.\n     * @param {HTMLElement} element\n     * @returns {boolean}\n     */\n    isInputElement: function(element) {\n      return element.nodeName.toLowerCase() == 'input';\n    },\n\n    /**\n     * Gets whether an element is an anchor element.\n     * @param {HTMLElement} element\n     * @returns {boolean}\n     */\n    isAnchorElement: function(element) {\n      return element.nodeName.toLowerCase() == 'a';\n    },\n\n    /**********************************************************************************************\n     * The following two functions were sourced from\n     * https://github.com/angular/components/blob/3c37e4b1c1cb74a3d0a90d173240fc730d21d9d4/src/cdk/a11y/focus-trap/focus-trap.ts#L268-L311\n     **********************************************************************************************/\n\n    /**\n     * Get the first tabbable element from a DOM subtree (inclusive).\n     * @param {HTMLElement} root\n     * @returns {HTMLElement|null}\n     */\n    getFirstTabbableElement: function(root) {\n      if ($mdUtil.isFocusable(root) && $mdUtil.isTabbable(root)) {\n        return root;\n      }\n\n      // Iterate in DOM order. Note that IE doesn't have `children` for SVG so we fall\n      // back to `childNodes` which includes text nodes, comments etc.\n      var children = root.children || root.childNodes;\n\n      for (var i = 0; i < children.length; i++) {\n        var tabbableChild = children[i].nodeType === $document[0].ELEMENT_NODE ?\n          $mdUtil.getFirstTabbableElement(children[i]) : null;\n\n        if (tabbableChild) {\n          return tabbableChild;\n        }\n      }\n\n      return null;\n    },\n\n    /**\n     * Get the last tabbable element from a DOM subtree (inclusive).\n     * @param {HTMLElement} root\n     * @returns {HTMLElement|null}\n     */\n    getLastTabbableElement: function(root) {\n      if ($mdUtil.isFocusable(root) && $mdUtil.isTabbable(root)) {\n        return root;\n      }\n\n      // Iterate in reverse DOM order.\n      var children = root.children || root.childNodes;\n\n      for (var i = children.length - 1; i >= 0; i--) {\n        var tabbableChild = children[i].nodeType === $document[0].ELEMENT_NODE ?\n          $mdUtil.getLastTabbableElement(children[i]) : null;\n\n        if (tabbableChild) {\n          return tabbableChild;\n        }\n      }\n\n      return null;\n    }\n  };\n\n  // Instantiate other namespace utility methods\n\n  $mdUtil.dom.animator = $$mdAnimate($mdUtil);\n\n  return $mdUtil;\n\n  function getNode(el) {\n    return el[0] || el;\n  }\n}\n\n/**\n * Since removing jQuery from the demos, some code that uses `element.focus()` is broken.\n * We need to add `element.focus()`, because it's testable unlike `element[0].focus`.\n */\nangular.element.prototype.focus = angular.element.prototype.focus || function() {\n  if (this.length) {\n    this[0].focus();\n  }\n  return this;\n};\n\nangular.element.prototype.blur = angular.element.prototype.blur || function() {\n  if (this.length) {\n    this[0].blur();\n  }\n  return this;\n};\n\n})();\n(function(){\n\"use strict\";\n\n// Polyfill angular < 1.4 (provide $animateCss)\nangular\n  .module('material.core')\n  .factory('$$mdAnimate', [\"$q\", \"$timeout\", \"$mdConstant\", \"$animateCss\", function($q, $timeout, $mdConstant, $animateCss) {\n     // Since $$mdAnimate is injected into $mdUtil... use a wrapper function\n     // to subsequently inject $mdUtil as an argument to the AnimateDomUtils\n     return function($mdUtil) {\n       return AnimateDomUtils($mdUtil, $q, $timeout, $mdConstant, $animateCss);\n     };\n   }]);\n\n/**\n * Factory function that requires special injections\n */\nfunction AnimateDomUtils($mdUtil, $q, $timeout, $mdConstant, $animateCss) {\n  var self;\n  return self = {\n    translate3d : function(target, from, to, options) {\n      return $animateCss(target, {\n        from: from,\n        to: to,\n        addClass: options.transitionInClass,\n        removeClass: options.transitionOutClass,\n        duration: options.duration\n      })\n      .start()\n      .then(function() {\n          // Resolve with reverser function...\n          return reverseTranslate;\n      });\n\n      /**\n       * Specific reversal of the request translate animation above...\n       */\n      function reverseTranslate (newFrom) {\n        return $animateCss(target, {\n           to: newFrom || from,\n           addClass: options.transitionOutClass,\n           removeClass: options.transitionInClass,\n           duration: options.duration\n        }).start();\n      }\n    },\n\n    /**\n     * Listen for transitionEnd event (with optional timeout)\n     * Announce completion or failure via promise handlers\n     */\n    waitTransitionEnd: function (element, opts) {\n      var TIMEOUT = 3000; // fallback is 3 secs\n\n      return $q(function(resolve, reject){\n        opts = opts || { };\n\n        // If there is no transition is found, resolve immediately\n        //\n        // NOTE: using $mdUtil.nextTick() causes delays/issues\n        if (noTransitionFound(opts.cachedTransitionStyles)) {\n          TIMEOUT = 0;\n        }\n\n        var timer = $timeout(finished, opts.timeout || TIMEOUT);\n        element.on($mdConstant.CSS.TRANSITIONEND, finished);\n\n        /**\n         * Upon timeout or transitionEnd, reject or resolve (respectively) this promise.\n         * NOTE: Make sure this transitionEnd didn't bubble up from a child\n         */\n        function finished(ev) {\n          if (ev && ev.target !== element[0]) return;\n\n          if (ev) $timeout.cancel(timer);\n          element.off($mdConstant.CSS.TRANSITIONEND, finished);\n\n          // Never reject since ngAnimate may cause timeouts due missed transitionEnd events\n          resolve();\n        }\n\n        /**\n         * Checks whether or not there is a transition.\n         *\n         * @param styles The cached styles to use for the calculation. If null, getComputedStyle()\n         * will be used.\n         *\n         * @returns {boolean} True if there is no transition/duration; false otherwise.\n         */\n        function noTransitionFound(styles) {\n          styles = styles || window.getComputedStyle(element[0]);\n\n          return styles.transitionDuration === '0s' ||\n            (!styles.transition && !styles.transitionProperty);\n        }\n      });\n    },\n\n    calculateTransformValues: function (element, originator) {\n      var origin = originator.element;\n      var bounds = originator.bounds;\n\n      if (origin || bounds) {\n        var originBnds = origin ? self.clientRect(origin) || currentBounds() : self.copyRect(bounds);\n        var dialogRect = self.copyRect(element[0].getBoundingClientRect());\n        var dialogCenterPt = self.centerPointFor(dialogRect);\n        var originCenterPt = self.centerPointFor(originBnds);\n\n        return {\n          centerX: originCenterPt.x - dialogCenterPt.x,\n          centerY: originCenterPt.y - dialogCenterPt.y,\n          scaleX: Math.round(100 * Math.min(0.5, originBnds.width / dialogRect.width)) / 100,\n          scaleY: Math.round(100 * Math.min(0.5, originBnds.height / dialogRect.height)) / 100\n        };\n      }\n      return {centerX: 0, centerY: 0, scaleX: 0.5, scaleY: 0.5};\n\n      /**\n       * This is a fallback if the origin information is no longer valid, then the\n       * origin bounds simply becomes the current bounds for the dialogContainer's parent.\n       * @returns {null|DOMRect}\n       */\n      function currentBounds() {\n        var container = element ? element.parent() : null;\n        var parent = container ? container.parent() : null;\n\n        return parent ? self.clientRect(parent) : null;\n      }\n    },\n\n    /**\n     * Calculate the zoom transform from dialog to origin.\n     *\n     * We use this to set the dialog position immediately;\n     * then the md-transition-in actually translates back to\n     * `translate3d(0,0,0) scale(1.0)`...\n     *\n     * NOTE: all values are rounded to the nearest integer\n     */\n    calculateZoomToOrigin: function (element, originator) {\n      var zoomTemplate = \"translate3d( {centerX}px, {centerY}px, 0 ) scale( {scaleX}, {scaleY} )\";\n      var buildZoom = angular.bind(null, $mdUtil.supplant, zoomTemplate);\n\n      return buildZoom(self.calculateTransformValues(element, originator));\n    },\n\n    /**\n     * Calculate the slide transform from panel to origin.\n     * NOTE: all values are rounded to the nearest integer\n     */\n    calculateSlideToOrigin: function (element, originator) {\n      var slideTemplate = \"translate3d( {centerX}px, {centerY}px, 0 )\";\n      var buildSlide = angular.bind(null, $mdUtil.supplant, slideTemplate);\n\n      return buildSlide(self.calculateTransformValues(element, originator));\n    },\n\n    /**\n     * Enhance raw values to represent valid css stylings...\n     */\n    toCss : function(raw) {\n      var css = { };\n      var lookups = 'left top right bottom width height x y min-width min-height max-width max-height';\n\n      angular.forEach(raw, function(value,key) {\n        if (angular.isUndefined(value)) return;\n\n        if (lookups.indexOf(key) >= 0) {\n          css[key] = value + 'px';\n        } else {\n          switch (key) {\n            case 'transition':\n              convertToVendor(key, $mdConstant.CSS.TRANSITION, value);\n              break;\n            case 'transform':\n              convertToVendor(key, $mdConstant.CSS.TRANSFORM, value);\n              break;\n            case 'transformOrigin':\n              convertToVendor(key, $mdConstant.CSS.TRANSFORM_ORIGIN, value);\n              break;\n            case 'font-size':\n              css['font-size'] = value; // font sizes aren't always in px\n              break;\n          }\n        }\n      });\n\n      return css;\n\n      function convertToVendor(key, vendor, value) {\n        angular.forEach(vendor.split(' '), function (key) {\n          css[key] = value;\n        });\n      }\n    },\n\n    /**\n     * Convert the translate CSS value to key/value pair(s).\n     * @param {string} transform\n     * @param {boolean=} addTransition\n     * @param {string=} transition\n     * @return {Object} object containing CSS translate key/value pair(s)\n     */\n    toTransformCss: function (transform, addTransition, transition) {\n      var css = {};\n      angular.forEach($mdConstant.CSS.TRANSFORM.split(' '), function (key) {\n        css[key] = transform;\n      });\n\n      if (addTransition) {\n        transition = transition || \"all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1) !important\";\n        css.transition = transition;\n      }\n\n      return css;\n    },\n\n    /**\n     * Clone the Rect and calculate the height/width if needed.\n     * @param {DOMRect} source\n     * @param {DOMRect=} destination\n     * @returns {null|DOMRect}\n     */\n    copyRect: function (source, destination) {\n      if (!source) return null;\n\n      destination = destination || {};\n\n      angular.forEach('left top right bottom width height'.split(' '), function (key) {\n        destination[key] = Math.round(source[key]);\n      });\n\n      destination.width = destination.width || (destination.right - destination.left);\n      destination.height = destination.height || (destination.bottom - destination.top);\n\n      return destination;\n    },\n\n    /**\n     * Calculate ClientRect of element; return null if hidden or zero size.\n     * @param {Element|string} element\n     * @returns {null|DOMRect}\n     */\n    clientRect: function (element) {\n      var bounds = angular.element(element)[0].getBoundingClientRect();\n      var isPositiveSizeClientRect = function (rect) {\n        return rect && (rect.width > 0) && (rect.height > 0);\n      };\n\n      // If the event origin element has zero size, it has probably been hidden.\n      return isPositiveSizeClientRect(bounds) ? self.copyRect(bounds) : null;\n    },\n\n    /**\n     * Calculate 'rounded' center point of Rect\n     * @param {DOMRect} targetRect\n     * @returns {{x: number, y: number}}\n     */\n    centerPointFor: function (targetRect) {\n      return targetRect ? {\n        x: Math.round(targetRect.left + (targetRect.width / 2)),\n        y: Math.round(targetRect.top + (targetRect.height / 2))\n      } : { x : 0, y : 0 };\n    }\n  };\n}\n\n\n})();\n(function(){\n\"use strict\";\n\nif (angular.version.minor >= 4) {\n  angular.module('material.core.animate', []);\n} else {\n(function() {\n  \"use strict\";\n\n  var forEach = angular.forEach;\n\n  var WEBKIT = angular.isDefined(document.documentElement.style.WebkitAppearance);\n  var TRANSITION_PROP = WEBKIT ? 'WebkitTransition' : 'transition';\n  var ANIMATION_PROP = WEBKIT ? 'WebkitAnimation' : 'animation';\n  var PREFIX = WEBKIT ? '-webkit-' : '';\n\n  var TRANSITION_EVENTS = (WEBKIT ? 'webkitTransitionEnd ' : '') + 'transitionend';\n  var ANIMATION_EVENTS = (WEBKIT ? 'webkitAnimationEnd ' : '') + 'animationend';\n\n  var $$ForceReflowFactory = ['$document', function($document) {\n    return function() {\n      return $document[0].body.clientWidth + 1;\n    };\n  }];\n\n  var $$rAFMutexFactory = ['$$rAF', function($$rAF) {\n    return function() {\n      var passed = false;\n      $$rAF(function() {\n        passed = true;\n      });\n      return function(fn) {\n        passed ? fn() : $$rAF(fn);\n      };\n    };\n  }];\n\n  var $$AnimateRunnerFactory = ['$q', '$$rAFMutex', function($q, $$rAFMutex) {\n    var INITIAL_STATE = 0;\n    var DONE_PENDING_STATE = 1;\n    var DONE_COMPLETE_STATE = 2;\n\n    function AnimateRunner(host) {\n      this.setHost(host);\n\n      this._doneCallbacks = [];\n      this._runInAnimationFrame = $$rAFMutex();\n      this._state = 0;\n    }\n\n    AnimateRunner.prototype = {\n      setHost: function(host) {\n        this.host = host || {};\n      },\n\n      done: function(fn) {\n        if (this._state === DONE_COMPLETE_STATE) {\n          fn();\n        } else {\n          this._doneCallbacks.push(fn);\n        }\n      },\n\n      progress: angular.noop,\n\n      getPromise: function() {\n        if (!this.promise) {\n          var self = this;\n          this.promise = $q(function(resolve, reject) {\n            self.done(function(status) {\n              status === false ? reject() : resolve();\n            });\n          });\n        }\n        return this.promise;\n      },\n\n      then: function(resolveHandler, rejectHandler) {\n        return this.getPromise().then(resolveHandler, rejectHandler);\n      },\n\n      'catch': function(handler) {\n        return this.getPromise()['catch'](handler);\n      },\n\n      'finally': function(handler) {\n        return this.getPromise()['finally'](handler);\n      },\n\n      pause: function() {\n        if (this.host.pause) {\n          this.host.pause();\n        }\n      },\n\n      resume: function() {\n        if (this.host.resume) {\n          this.host.resume();\n        }\n      },\n\n      end: function() {\n        if (this.host.end) {\n          this.host.end();\n        }\n        this._resolve(true);\n      },\n\n      cancel: function() {\n        if (this.host.cancel) {\n          this.host.cancel();\n        }\n        this._resolve(false);\n      },\n\n      complete: function(response) {\n        var self = this;\n        if (self._state === INITIAL_STATE) {\n          self._state = DONE_PENDING_STATE;\n          self._runInAnimationFrame(function() {\n            self._resolve(response);\n          });\n        }\n      },\n\n      _resolve: function(response) {\n        if (this._state !== DONE_COMPLETE_STATE) {\n          forEach(this._doneCallbacks, function(fn) {\n            fn(response);\n          });\n          this._doneCallbacks.length = 0;\n          this._state = DONE_COMPLETE_STATE;\n        }\n      }\n    };\n\n    // Polyfill AnimateRunner.all which is used by input animations\n    AnimateRunner.all = function(runners, callback) {\n      var count = 0;\n      var status = true;\n      forEach(runners, function(runner) {\n        runner.done(onProgress);\n      });\n\n      function onProgress(response) {\n        status = status && response;\n        if (++count === runners.length) {\n          callback(status);\n        }\n      }\n    };\n\n    return AnimateRunner;\n  }];\n\n  angular\n    .module('material.core.animate', [])\n    .factory('$$forceReflow', $$ForceReflowFactory)\n    .factory('$$AnimateRunner', $$AnimateRunnerFactory)\n    .factory('$$rAFMutex', $$rAFMutexFactory)\n    .factory('$animateCss', ['$window', '$$rAF', '$$AnimateRunner', '$$forceReflow', '$$jqLite', '$timeout', '$animate',\n                     function($window,   $$rAF,   $$AnimateRunner,   $$forceReflow,   $$jqLite,   $timeout, $animate) {\n\n      function init(element, options) {\n\n        var temporaryStyles = [];\n        var node = getDomNode(element);\n        var areAnimationsAllowed = node && $animate.enabled();\n\n        var hasCompleteStyles = false;\n        var hasCompleteClasses = false;\n\n        if (areAnimationsAllowed) {\n          if (options.transitionStyle) {\n            temporaryStyles.push([PREFIX + 'transition', options.transitionStyle]);\n          }\n\n          if (options.keyframeStyle) {\n            temporaryStyles.push([PREFIX + 'animation', options.keyframeStyle]);\n          }\n\n          if (options.delay) {\n            temporaryStyles.push([PREFIX + 'transition-delay', options.delay + 's']);\n          }\n\n          if (options.duration) {\n            temporaryStyles.push([PREFIX + 'transition-duration', options.duration + 's']);\n          }\n\n          hasCompleteStyles = options.keyframeStyle ||\n              (options.to && (options.duration > 0 || options.transitionStyle));\n          hasCompleteClasses = !!options.addClass || !!options.removeClass;\n\n          blockTransition(element, true);\n        }\n\n        var hasCompleteAnimation = areAnimationsAllowed && (hasCompleteStyles || hasCompleteClasses);\n\n        applyAnimationFromStyles(element, options);\n\n        var animationClosed = false;\n        var events, eventFn;\n\n        return {\n          close: $window.close,\n          start: function() {\n            var runner = new $$AnimateRunner();\n            waitUntilQuiet(function() {\n              blockTransition(element, false);\n              if (!hasCompleteAnimation) {\n                return close();\n              }\n\n              forEach(temporaryStyles, function(entry) {\n                var key = entry[0];\n                var value = entry[1];\n                node.style[camelCase(key)] = value;\n              });\n\n              applyClasses(element, options);\n\n              var timings = computeTimings(element);\n              if (timings.duration === 0) {\n                return close();\n              }\n\n              var moreStyles = [];\n\n              if (options.easing) {\n                if (timings.transitionDuration) {\n                  moreStyles.push([PREFIX + 'transition-timing-function', options.easing]);\n                }\n                if (timings.animationDuration) {\n                  moreStyles.push([PREFIX + 'animation-timing-function', options.easing]);\n                }\n              }\n\n              if (options.delay && timings.animationDelay) {\n                moreStyles.push([PREFIX + 'animation-delay', options.delay + 's']);\n              }\n\n              if (options.duration && timings.animationDuration) {\n                moreStyles.push([PREFIX + 'animation-duration', options.duration + 's']);\n              }\n\n              forEach(moreStyles, function(entry) {\n                var key = entry[0];\n                var value = entry[1];\n                node.style[camelCase(key)] = value;\n                temporaryStyles.push(entry);\n              });\n\n              var maxDelay = timings.delay;\n              var maxDelayTime = maxDelay * 1000;\n              var maxDuration = timings.duration;\n              var maxDurationTime = maxDuration * 1000;\n              var startTime = Date.now();\n\n              events = [];\n              if (timings.transitionDuration) {\n                events.push(TRANSITION_EVENTS);\n              }\n              if (timings.animationDuration) {\n                events.push(ANIMATION_EVENTS);\n              }\n              events = events.join(' ');\n              eventFn = function(event) {\n                event.stopPropagation();\n                var ev = event.originalEvent || event;\n                var timeStamp = ev.timeStamp || Date.now();\n                var elapsedTime = parseFloat(ev.elapsedTime.toFixed(3));\n                if (Math.max(timeStamp - startTime, 0) >= maxDelayTime && elapsedTime >= maxDuration) {\n                  close();\n                }\n              };\n              element.on(events, eventFn);\n\n              applyAnimationToStyles(element, options);\n\n              $timeout(close, maxDelayTime + maxDurationTime * 1.5, false);\n            });\n\n            return runner;\n\n            function close() {\n              if (animationClosed) return;\n              animationClosed = true;\n\n              if (events && eventFn) {\n                element.off(events, eventFn);\n              }\n              applyClasses(element, options);\n              applyAnimationStyles(element, options);\n              forEach(temporaryStyles, function(entry) {\n                node.style[camelCase(entry[0])] = '';\n              });\n              runner.complete(true);\n              return runner;\n            }\n          }\n        };\n      }\n\n      function applyClasses(element, options) {\n        if (options.addClass) {\n          $$jqLite.addClass(element, options.addClass);\n          options.addClass = null;\n        }\n        if (options.removeClass) {\n          $$jqLite.removeClass(element, options.removeClass);\n          options.removeClass = null;\n        }\n      }\n\n      function computeTimings(element) {\n        var node = getDomNode(element);\n        var cs = $window.getComputedStyle(node);\n        var tdr = parseMaxTime(cs[prop('transitionDuration')]);\n        var adr = parseMaxTime(cs[prop('animationDuration')]);\n        var tdy = parseMaxTime(cs[prop('transitionDelay')]);\n        var ady = parseMaxTime(cs[prop('animationDelay')]);\n\n        adr *= (parseInt(cs[prop('animationIterationCount')], 10) || 1);\n        var duration = Math.max(adr, tdr);\n        var delay = Math.max(ady, tdy);\n\n        return {\n          duration: duration,\n          delay: delay,\n          animationDuration: adr,\n          transitionDuration: tdr,\n          animationDelay: ady,\n          transitionDelay: tdy\n        };\n\n        function prop(key) {\n          return WEBKIT ? 'Webkit' + key.charAt(0).toUpperCase() + key.substr(1)\n                        : key;\n        }\n      }\n\n      function parseMaxTime(str) {\n        var maxValue = 0;\n        var values = (str || \"\").split(/\\s*,\\s*/);\n        forEach(values, function(value) {\n          // it's always safe to consider only second values and omit `ms` values since\n          // getComputedStyle will always handle the conversion for us\n          if (value.charAt(value.length - 1) == 's') {\n            value = value.substring(0, value.length - 1);\n          }\n          value = parseFloat(value) || 0;\n          maxValue = maxValue ? Math.max(value, maxValue) : value;\n        });\n        return maxValue;\n      }\n\n      var cancelLastRAFRequest;\n      var rafWaitQueue = [];\n      function waitUntilQuiet(callback) {\n        if (cancelLastRAFRequest) {\n          cancelLastRAFRequest(); // cancels the request\n        }\n        rafWaitQueue.push(callback);\n        cancelLastRAFRequest = $$rAF(function() {\n          cancelLastRAFRequest = null;\n\n          // DO NOT REMOVE THIS LINE OR REFACTOR OUT THE `pageWidth` variable.\n          // PLEASE EXAMINE THE `$$forceReflow` service to understand why.\n          var pageWidth = $$forceReflow();\n\n          // we use a for loop to ensure that if the queue is changed\n          // during this looping then it will consider new requests\n          for (var i = 0; i < rafWaitQueue.length; i++) {\n            rafWaitQueue[i](pageWidth);\n          }\n          rafWaitQueue.length = 0;\n        });\n      }\n\n      function applyAnimationStyles(element, options) {\n        applyAnimationFromStyles(element, options);\n        applyAnimationToStyles(element, options);\n      }\n\n      function applyAnimationFromStyles(element, options) {\n        if (options.from) {\n          element.css(options.from);\n          options.from = null;\n        }\n      }\n\n      function applyAnimationToStyles(element, options) {\n        if (options.to) {\n          element.css(options.to);\n          options.to = null;\n        }\n      }\n\n      function getDomNode(element) {\n        for (var i = 0; i < element.length; i++) {\n          if (element[i].nodeType === 1) return element[i];\n        }\n      }\n\n      function blockTransition(element, bool) {\n        var node = getDomNode(element);\n        var key = camelCase(PREFIX + 'transition-delay');\n        node.style[key] = bool ? '-9999s' : '';\n      }\n\n      return init;\n    }]);\n\n  /**\n   * Older browsers [FF31] expect camelCase\n   * property keys.\n   * e.g.\n   *  animation-duration --> animationDuration\n   */\n  function camelCase(str) {\n    return str.replace(/-[a-z]/g, function(str) {\n      return str.charAt(1).toUpperCase();\n    });\n  }\n\n})();\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.core.aria\n * @description\n * Aria Expectations for AngularJS Material components.\n */\nMdAriaService.$inject = [\"$$rAF\", \"$log\", \"$window\", \"$interpolate\"];\nangular\n  .module('material.core')\n  .provider('$mdAria', MdAriaProvider);\n\n/**\n * @ngdoc service\n * @name $mdAriaProvider\n * @module material.core.aria\n *\n * @description\n *\n * Modify options of the `$mdAria` service, which will be used by most of the AngularJS Material\n * components.\n *\n * You are able to disable `$mdAria` warnings, by using the following markup.\n *\n * <hljs lang=\"js\">\n *   app.config(function($mdAriaProvider) {\n *     // Globally disables all ARIA warnings.\n *     $mdAriaProvider.disableWarnings();\n *   });\n * </hljs>\n *\n */\nfunction MdAriaProvider() {\n\n  var config = {\n    /** Whether we should show ARIA warnings in the console if labels are missing on the element */\n    showWarnings: true\n  };\n\n  return {\n    disableWarnings: disableWarnings,\n    $get: [\"$$rAF\", \"$log\", \"$window\", \"$interpolate\", function($$rAF, $log, $window, $interpolate) {\n      return MdAriaService.apply(config, arguments);\n    }]\n  };\n\n  /**\n   * @ngdoc method\n   * @name $mdAriaProvider#disableWarnings\n   * @description Disables all ARIA warnings generated by AngularJS Material.\n   */\n  function disableWarnings() {\n    config.showWarnings = false;\n  }\n}\n\n/*\n * @ngInject\n */\nfunction MdAriaService($$rAF, $log, $window, $interpolate) {\n\n  // Load the showWarnings option from the current context and store it inside of a scope variable,\n  // because the context will be probably lost in some function calls.\n  var showWarnings = this.showWarnings;\n\n  return {\n    expect: expect,\n    expectAsync: expectAsync,\n    expectWithText: expectWithText,\n    expectWithoutText: expectWithoutText,\n    getText: getText,\n    hasAriaLabel: hasAriaLabel,\n    parentHasAriaLabel: parentHasAriaLabel\n  };\n\n  /**\n   * Check if expected attribute has been specified on the target element or child\n   * @param {string|JQLite} element\n   * @param {string} attrName\n   * @param {string=} defaultValue What to set the attr to if no value is found\n   */\n  function expect(element, attrName, defaultValue) {\n\n    var node = angular.element(element)[0] || element;\n\n    // if node exists and neither it nor its children have the attribute\n    if (node &&\n       ((!node.hasAttribute(attrName) ||\n        node.getAttribute(attrName).length === 0) &&\n        !childHasAttribute(node, attrName))) {\n\n      defaultValue = angular.isString(defaultValue) ? defaultValue.trim() : '';\n      if (defaultValue.length) {\n        element.attr(attrName, defaultValue);\n      } else if (showWarnings) {\n        $log.warn('ARIA: Attribute \"', attrName, '\", required for accessibility, is missing on node:', node);\n      }\n\n    }\n  }\n\n  function expectAsync(element, attrName, defaultValueGetter) {\n    // Problem: when retrieving the element's contents synchronously to find the label,\n    // the text may not be defined yet in the case of a binding.\n    // There is a higher chance that a binding will be defined if we wait one frame.\n    $$rAF(function() {\n        expect(element, attrName, defaultValueGetter());\n    });\n  }\n\n  function expectWithText(element, attrName) {\n    var content = getText(element) || \"\";\n    var hasBinding = content.indexOf($interpolate.startSymbol()) > -1;\n\n    if (hasBinding) {\n      expectAsync(element, attrName, function() {\n        return getText(element);\n      });\n    } else {\n      expect(element, attrName, content);\n    }\n  }\n\n  function expectWithoutText(element, attrName) {\n    var content = getText(element);\n    var hasBinding = content.indexOf($interpolate.startSymbol()) > -1;\n\n    if (!hasBinding && !content) {\n      expect(element, attrName, content);\n    }\n  }\n\n  /**\n   * @param {Element|JQLite} element\n   * @returns {string}\n   */\n  function getText(element) {\n    element = element[0] || element;\n    var walker = document.createTreeWalker(element, NodeFilter.SHOW_TEXT, null, false);\n    var text = '';\n\n    var node;\n    while (node = walker.nextNode()) {\n      if (!isAriaHiddenNode(node)) {\n        text += node.textContent;\n      }\n    }\n\n    return text.trim() || '';\n\n    /**\n     * @param {Node} node\n     * @returns {boolean}\n     */\n    function isAriaHiddenNode(node) {\n      while (node.parentNode && (node = node.parentNode) !== element) {\n        if (node.getAttribute && node.getAttribute('aria-hidden') === 'true') {\n          return true;\n        }\n      }\n    }\n  }\n\n  function childHasAttribute(node, attrName) {\n    var hasChildren = node.hasChildNodes(),\n        hasAttr = false;\n\n    function isHidden(el) {\n      var style = el.currentStyle ? el.currentStyle : $window.getComputedStyle(el);\n      return (style.display === 'none');\n    }\n\n    if (hasChildren) {\n      var children = node.childNodes;\n      for (var i=0; i < children.length; i++) {\n        var child = children[i];\n        if (child.nodeType === 1 && child.hasAttribute(attrName)) {\n          if (!isHidden(child)) {\n            hasAttr = true;\n          }\n        }\n      }\n    }\n    return hasAttr;\n  }\n\n  /**\n   * Check if expected element has aria label attribute\n   * @param element\n   */\n  function hasAriaLabel(element) {\n    var node = angular.element(element)[0] || element;\n\n    /* Check if compatible node type (ie: not HTML Document node) */\n    if (!node.hasAttribute) {\n      return false;\n    }\n\n    /* Check label or description attributes */\n    return node.hasAttribute('aria-label') || node.hasAttribute('aria-labelledby') || node.hasAttribute('aria-describedby');\n  }\n\n  /**\n   * Check if expected element's parent has aria label attribute and has valid role and tagName\n   * @param {string|JQLite|Node & ParentNode} element\n   * @param {number=} level Number of levels deep search should be performed\n   */\n  function parentHasAriaLabel(element, level) {\n    level = level || 1;\n    var node = angular.element(element)[0] || element;\n    if (!node.parentNode) {\n      return false;\n    }\n    if (performCheck(node.parentNode)) {\n      return true;\n    }\n    level--;\n    if (level) {\n      return parentHasAriaLabel(node.parentNode, level);\n    }\n    return false;\n\n    function performCheck(parentNode) {\n      if (!hasAriaLabel(parentNode)) {\n        return false;\n      }\n      /* Perform role block-list check */\n      if (parentNode.hasAttribute('role')) {\n        switch (parentNode.getAttribute('role').toLowerCase()) {\n          case 'command':\n          case 'definition':\n          case 'directory':\n          case 'grid':\n          case 'list':\n          case 'listitem':\n          case 'log':\n          case 'marquee':\n          case 'menu':\n          case 'menubar':\n          case 'note':\n          case 'presentation':\n          case 'separator':\n          case 'scrollbar':\n          case 'status':\n          case 'tablist':\n            return false;\n        }\n      }\n      /* Perform tagName block-list check */\n      switch (parentNode.tagName.toLowerCase()) {\n        case 'abbr':\n        case 'acronym':\n        case 'address':\n        case 'applet':\n        case 'audio':\n        case 'b':\n        case 'bdi':\n        case 'bdo':\n        case 'big':\n        case 'blockquote':\n        case 'br':\n        case 'canvas':\n        case 'caption':\n        case 'center':\n        case 'cite':\n        case 'code':\n        case 'col':\n        case 'data':\n        case 'dd':\n        case 'del':\n        case 'dfn':\n        case 'dir':\n        case 'div':\n        case 'dl':\n        case 'em':\n        case 'embed':\n        case 'fieldset':\n        case 'figcaption':\n        case 'font':\n        case 'h1':\n        case 'h2':\n        case 'h3':\n        case 'h4':\n        case 'h5':\n        case 'h6':\n        case 'hgroup':\n        case 'html':\n        case 'i':\n        case 'ins':\n        case 'isindex':\n        case 'kbd':\n        case 'keygen':\n        case 'label':\n        case 'legend':\n        case 'li':\n        case 'map':\n        case 'mark':\n        case 'menu':\n        case 'object':\n        case 'ol':\n        case 'output':\n        case 'pre':\n        case 'presentation':\n        case 'q':\n        case 'rt':\n        case 'ruby':\n        case 'samp':\n        case 'small':\n        case 'source':\n        case 'span':\n        case 'status':\n        case 'strike':\n        case 'strong':\n        case 'sub':\n        case 'sup':\n        case 'svg':\n        case 'tbody':\n        case 'td':\n        case 'th':\n        case 'thead':\n        case 'time':\n        case 'tr':\n        case 'track':\n        case 'tt':\n        case 'ul':\n        case 'var':\n          return false;\n      }\n      return true;\n    }\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.core.compiler\n * @description\n * AngularJS Material template and element compiler.\n */\nangular\n  .module('material.core')\n  .provider('$mdCompiler', MdCompilerProvider);\n\nMdCompilerProvider.$inject = ['$compileProvider'];\nfunction MdCompilerProvider() {\n\n  this.$get = [\"$q\", \"$templateRequest\", \"$injector\", \"$compile\", \"$controller\",\n    function($q, $templateRequest, $injector, $compile, $controller) {\n      return new MdCompilerService($q, $templateRequest, $injector, $compile, $controller);\n    }];\n\n  /**\n   * @ngdoc service\n   * @name $mdCompiler\n   * @module material.core.compiler\n   * @description\n   * The $mdCompiler service is an abstraction of AngularJS's compiler, that allows developers\n   * to compile an element with options like in a Directive Definition Object.\n   *\n   * > The compiler powers a lot of components inside of AngularJS Material.\n   * > Like the `$mdPanel` or `$mdDialog` services.\n   *\n   * @usage\n   *\n   * Basic Usage with a template\n   *\n   * <hljs lang=\"js\">\n   *   $mdCompiler.compile({\n   *     templateUrl: 'modal.html',\n   *     controller: 'ModalCtrl',\n   *     locals: {\n   *       modal: myModalInstance;\n   *     }\n   *   }).then(function (compileData) {\n   *     compileData.element; // Compiled DOM element\n   *     compileData.link(myScope); // Instantiate controller and link element to scope.\n   *   });\n   * </hljs>\n   *\n   * Example with a content element\n   *\n   * <hljs lang=\"js\">\n   *\n   *   // Create a virtual element and link it manually.\n   *   // The compiler doesn't need to recompile the element each time.\n   *   var myElement = $compile('<span>Test</span>')(myScope);\n   *\n   *   $mdCompiler.compile({\n   *     contentElement: myElement\n   *   }).then(function (compileData) {\n   *     compileData.element // Content Element (same as above)\n   *     compileData.link // This does nothing when using a contentElement.\n   *   });\n   * </hljs>\n   *\n   * > Content Element is a significant performance improvement when the developer already knows\n   * > that the compiled element will be always the same and the scope will not change either.\n   *\n   * The `contentElement` option also supports DOM elements which will be temporary removed and\n   * restored at its old position.\n   *\n   * <hljs lang=\"js\">\n   *   var domElement = document.querySelector('#myElement');\n   *\n   *   $mdCompiler.compile({\n   *     contentElement: myElement\n   *   }).then(function (compileData) {\n   *     compileData.element // Content Element (same as above)\n   *     compileData.link // This does nothing when using a contentElement.\n   *   });\n   * </hljs>\n   *\n   * The `$mdCompiler` can also query for the element in the DOM itself.\n   *\n   * <hljs lang=\"js\">\n   *   $mdCompiler.compile({\n   *     contentElement: '#myElement'\n   *   }).then(function (compileData) {\n   *     compileData.element // Content Element (same as above)\n   *     compileData.link // This does nothing when using a contentElement.\n   *   });\n   * </hljs>\n   *\n   */\n  function MdCompilerService($q, $templateRequest, $injector, $compile, $controller) {\n\n    /**\n     * @private @const\n     * @type {!IQService}\n     */\n    this.$q = $q;\n\n    /**\n     * @private @const\n     * @type {!ITemplateRequestService}\n     */\n    this.$templateRequest = $templateRequest;\n\n    /**\n     * @private @const\n     * @type {!IInjectorService}\n     */\n    this.$injector = $injector;\n\n    /**\n     * @private @const\n     * @type{!ICompileService}\n     */\n    this.$compile = $compile;\n\n    /**\n     * @private @const\n     * @type {!IControllerService}\n     */\n    this.$controller = $controller;\n  }\n\n  /**\n   * @ngdoc method\n   * @name $mdCompiler#compile\n   * @description\n   *\n   * A method to compile a HTML template with the AngularJS compiler.\n   * The `$mdCompiler` is wrapper around the AngularJS compiler and provides extra functionality\n   * like controller instantiation or async resolves.\n   *\n   * @param {!Object} options An options object, with the following properties:\n   *\n   *    - `controller` - `{string|function}` Controller fn that should be associated with\n   *         newly created scope or the name of a registered controller if passed as a string.\n   *    - `controllerAs` - `{string=}` A controller alias name. If present the controller will be\n   *         published to scope under the `controllerAs` name.\n   *    - `contentElement` - `{string|Element}`: Instead of using a template, which will be\n   *         compiled each time, you can also use a DOM element.<br/>\n   *    - `template` - `{string=}` An html template as a string.\n   *    - `templateUrl` - `{string=}` A path to an html template.\n   *    - `transformTemplate` - `{function(template)=}` A function which transforms the template after\n   *        it is loaded. It will be given the template string as a parameter, and should\n   *        return a a new string representing the transformed template.\n   *    - `resolve` - `{Object.<string, function>=}` - An optional map of dependencies which should\n   *        be injected into the controller. If any of these dependencies are promises, the compiler\n   *        will wait for them all to be resolved, or if one is rejected before the controller is\n   *        instantiated `compile()` will fail..\n   *      * `key` - `{string}`: a name of a dependency to be injected into the controller.\n   *      * `factory` - `{string|function}`: If `string` then it is an alias for a service.\n   *        Otherwise if function, then it is injected and the return value is treated as the\n   *        dependency. If the result is a promise, it is resolved before its value is\n   *        injected into the controller.\n   *\n   * @returns {Q.Promise<{element: JQLite, link: Function, locals: Object, cleanup: any,\n   *  controller: Object=}>} promise A promise, which will be resolved with a `compileData` object.\n   *  `compileData` has the following properties:\n   *\n   *   - `element` - `{JQLite}`: an uncompiled element matching the provided template.\n   *   - `link` - `{function(scope)}`: A link function, which, when called, will compile\n   *     the element and instantiate the provided controller (if given).\n   *   - `locals` - `{Object}`: The locals which will be passed into the controller once `link` is\n   *     called. If `bindToController` is true, they will be copied to the ctrl instead\n   */\n  MdCompilerService.prototype.compile = function(options) {\n    if (options.contentElement) {\n      return this._prepareContentElement(options);\n    } else {\n      return this._compileTemplate(options);\n    }\n  };\n\n  /**\n   * Instead of compiling any template, the compiler just fetches an existing HTML element from the\n   * DOM and provides a restore function to put the element back it old DOM position.\n   * @param {!Object} options Options to be used for the compiler.\n   * @returns {Q.Promise<{element: JQLite, link: Function, locals: Object, cleanup: any}>}\n   */\n  MdCompilerService.prototype._prepareContentElement = function(options) {\n\n    var contentElement = this._fetchContentElement(options);\n\n    return this.$q.resolve({\n      element: contentElement.element,\n      cleanup: contentElement.restore,\n      locals: {},\n      link: function() {\n        return contentElement.element;\n      }\n    });\n\n  };\n\n  /**\n   * Compiles a template by considering all options and waiting for all resolves to be ready.\n   * @param {!Object} options Compile options\n   * @returns {!Q.Promise<{element: JQLite, link: Function, locals: Object, cleanup: any}>} Compile\n   *  data with link function.\n   */\n  MdCompilerService.prototype._compileTemplate = function(options) {\n\n    var self = this;\n    var templateUrl = options.templateUrl;\n    var template = options.template || '';\n    var resolve = angular.extend({}, options.resolve);\n    var locals = angular.extend({}, options.locals);\n    var transformTemplate = options.transformTemplate || angular.identity;\n\n    // Take resolve values and invoke them.\n    // Resolves can either be a string (value: 'MyRegisteredAngularConst'),\n    // or an invokable 'factory' of sorts: (value: function ValueGetter($dependency) {})\n    angular.forEach(resolve, function(value, key) {\n      if (angular.isString(value)) {\n        resolve[key] = self.$injector.get(value);\n      } else {\n        resolve[key] = self.$injector.invoke(value);\n      }\n    });\n\n    // Add the locals, which are just straight values to inject\n    // eg locals: { three: 3 }, will inject three into the controller\n    angular.extend(resolve, locals);\n\n    if (templateUrl) {\n      resolve.$$ngTemplate = this.$templateRequest(templateUrl);\n    } else {\n      resolve.$$ngTemplate = this.$q.when(template);\n    }\n\n\n    // Wait for all the resolves to finish if they are promises\n    return this.$q.all(resolve).then(function(locals) {\n\n      var template = transformTemplate(locals.$$ngTemplate, options);\n      var element = options.element || angular.element('<div>').html(template.trim()).contents();\n\n      return self._compileElement(locals, element, options);\n    });\n\n  };\n\n  /**\n   * Method to compile an element with the given options.\n   * @param {!Object} locals Locals to be injected to the controller if present\n   * @param {!JQLite} element Element to be compiled and linked\n   * @param {!Object} options Options to be used for linking.\n   * @returns {!{element: JQLite, link: Function, locals: Object, cleanup: any, controller: Object}} Compile data with link function.\n   */\n  MdCompilerService.prototype._compileElement = function(locals, element, options) {\n    var self = this;\n    var ngLinkFn = this.$compile(element);\n\n    var compileData = {\n      element: element,\n      cleanup: element.remove.bind(element),\n      locals: locals,\n      link: linkFn\n    };\n\n    function linkFn(scope) {\n      locals.$scope = scope;\n\n      // Instantiate controller if the developer provided one.\n      if (options.controller) {\n\n        var injectLocals = angular.extend({}, locals, {\n          $element: element\n        });\n\n        // Create the specified controller instance.\n        var ctrl = self._createController(options, injectLocals, locals);\n\n        // Registering extra $destroy listeners should be avoided.\n        // Only register the listener if the controller implements a $onDestroy hook.\n        if (angular.isFunction(ctrl.$onDestroy)) {\n          scope.$on('$destroy', function() {\n            // Call the $onDestroy hook if it's present on the controller.\n            angular.isFunction(ctrl.$onDestroy) && ctrl.$onDestroy();\n          });\n        }\n\n        // Unique identifier for AngularJS Route ngView controllers.\n        element.data('$ngControllerController', ctrl);\n        element.children().data('$ngControllerController', ctrl);\n\n        // Expose the instantiated controller to the compile data\n        compileData.controller = ctrl;\n      }\n\n      // Invoke the AngularJS $compile link function.\n      return ngLinkFn(scope);\n    }\n\n    return compileData;\n\n  };\n\n  /**\n   * Creates and instantiates a new controller with the specified options.\n   * @param {!Object} options Options that include the controller function or string.\n   * @param {!Object} injectLocals Locals to to be provided in the controller DI.\n   * @param {!Object} locals Locals to be injected to the controller.\n   * @returns {!Object} Created controller instance.\n   */\n  MdCompilerService.prototype._createController = function(options, injectLocals, locals) {\n    var ctrl = this.$controller(options.controller, injectLocals);\n\n    if (options.bindToController) {\n      angular.extend(ctrl, locals);\n    }\n\n    if (options.controllerAs) {\n      injectLocals.$scope[options.controllerAs] = ctrl;\n    }\n\n    // Call the $onInit hook if it's present on the controller.\n    angular.isFunction(ctrl.$onInit) && ctrl.$onInit();\n\n    return ctrl;\n  };\n\n  /**\n   * Fetches an element removing it from the DOM and using it temporary for the compiler.\n   * Elements which were fetched will be restored after use.\n   * @param {!Object} options Options to be used for the compilation.\n   * @returns {{element: !JQLite, restore: !function}}\n   */\n  MdCompilerService.prototype._fetchContentElement = function(options) {\n    var contentEl = options.contentElement;\n    var restoreFn;\n\n    if (angular.isString(contentEl)) {\n      contentEl = document.querySelector(contentEl);\n      restoreFn = createRestoreFn(contentEl);\n    } else {\n      contentEl = contentEl[0] || contentEl;\n\n      // When the element is visible in the DOM, then we restore it at close of the dialog.\n      // Otherwise it will be removed from the DOM after close.\n      if (document.contains(contentEl)) {\n        restoreFn = createRestoreFn(contentEl);\n      } else {\n        restoreFn = function() {\n          if (contentEl.parentNode) {\n            contentEl.parentNode.removeChild(contentEl);\n          }\n        };\n      }\n    }\n\n    return {\n      element: angular.element(contentEl),\n      restore: restoreFn\n    };\n\n    function createRestoreFn(element) {\n      var parent = element.parentNode;\n      var nextSibling = element.nextElementSibling;\n\n      return function() {\n        if (!nextSibling) {\n          // When the element didn't had any sibling, then it can be simply appended to the\n          // parent, because it plays no role, which index it had before.\n          parent.appendChild(element);\n        } else {\n          // When the element had a sibling, which marks the previous position of the element\n          // in the DOM, we insert it correctly before the sibling, to have the same index as\n          // before.\n          parent.insertBefore(element, nextSibling);\n        }\n      };\n    }\n  };\n}\n\n\n})();\n(function(){\n\"use strict\";\n\n\nMdGesture.$inject = [\"$$MdGestureHandler\", \"$$rAF\", \"$timeout\", \"$mdUtil\"];\nattachToDocument.$inject = [\"$mdGesture\", \"$$MdGestureHandler\", \"$mdUtil\"];var HANDLERS = {};\n\n/**\n * The state of the current 'pointer'. The pointer represents the state of the current touch.\n * It contains normalized x and y coordinates from DOM events,\n * as well as other information abstracted from the DOM.\n */\nvar pointer, lastPointer, maxClickDistance = 6;\nvar forceSkipClickHijack = false, disableAllGestures = false;\n\n/**\n * The position of the most recent click if that click was on a label element.\n * @type {{x: number, y: number}|null}\n */\nvar lastLabelClickPos = null;\n\n/**\n * Used to attach event listeners once when multiple ng-apps are running.\n * @type {boolean}\n */\nvar isInitialized = false;\n\n/**\n * @ngdoc module\n * @name material.core.gestures\n * @description\n * AngularJS Material Gesture handling for touch devices.\n * This module replaced the usage of the HammerJS library.\n */\nangular\n  .module('material.core.gestures', [])\n  .provider('$mdGesture', MdGestureProvider)\n  .factory('$$MdGestureHandler', MdGestureHandler)\n  .run(attachToDocument);\n\n/**\n * @ngdoc service\n * @name $mdGestureProvider\n * @module material.core.gestures\n *\n * @description\n * In some scenarios on mobile devices (without jQuery), the click events should NOT be hijacked.\n * `$mdGestureProvider` is used to configure the Gesture module to ignore or skip click hijacking\n * on mobile devices.\n *\n * You can also change the max click distance, `6px` by default, if you have issues on some touch\n * screens.\n *\n * <hljs lang=\"js\">\n *   app.config(function($mdGestureProvider) {\n *\n *     // For mobile devices without jQuery loaded, do not\n *     // intercept click events during the capture phase.\n *     $mdGestureProvider.skipClickHijack();\n *\n *     // If hijacking clicks, you may want to change the default click distance\n *     $mdGestureProvider.setMaxClickDistance(12);\n *   });\n * </hljs>\n *\n */\nfunction MdGestureProvider() { }\n\nMdGestureProvider.prototype = {\n\n  /**\n   * @ngdoc method\n   * @name $mdGestureProvider#disableAll\n   *\n   * @description\n   * Disable all gesture detection. This can be beneficial to application performance\n   * and memory usage.\n   */\n  disableAll: function () {\n    disableAllGestures = true;\n  },\n\n  // Publish access to setter to configure a variable BEFORE the\n  // $mdGesture service is instantiated...\n  /**\n   * @ngdoc method\n   * @name $mdGestureProvider#skipClickHijack\n   *\n   * @description\n   * Tell the AngularJS Material Gesture module to skip (or ignore) click hijacking on mobile devices.\n   */\n  skipClickHijack: function() {\n    return forceSkipClickHijack = true;\n  },\n\n  /**\n   * @ngdoc method\n   * @name $mdGestureProvider#setMaxClickDistance\n   * @param clickDistance {string} Distance in pixels. I.e. `12px`.\n   * @description\n   * Set the max distance from the origin of the touch event to trigger touch handlers.\n   */\n  setMaxClickDistance: function(clickDistance) {\n    maxClickDistance = parseInt(clickDistance);\n  },\n\n  /**\n   * $get is used to build an instance of $mdGesture\n   * @ngInject\n   */\n  $get : [\"$$MdGestureHandler\", \"$$rAF\", \"$timeout\", \"$mdUtil\", function($$MdGestureHandler, $$rAF, $timeout, $mdUtil) {\n       return new MdGesture($$MdGestureHandler, $$rAF, $timeout, $mdUtil);\n  }]\n};\n\n\n\n/**\n * MdGesture factory construction function\n * @ngInject\n */\nfunction MdGesture($$MdGestureHandler, $$rAF, $timeout, $mdUtil) {\n  var touchActionProperty = $mdUtil.getTouchAction();\n  var hasJQuery = (typeof window.jQuery !== 'undefined') && (angular.element === window.jQuery);\n\n  var self = {\n    handler: addHandler,\n    register: register,\n    isAndroid: $mdUtil.isAndroid,\n    isIos: $mdUtil.isIos,\n    // On mobile w/out jQuery, we normally intercept clicks. Should we skip that?\n    isHijackingClicks: ($mdUtil.isIos || $mdUtil.isAndroid) && !hasJQuery && !forceSkipClickHijack\n  };\n\n  if (self.isHijackingClicks) {\n    self.handler('click', {\n      options: {\n        maxDistance: maxClickDistance\n      },\n      onEnd: checkDistanceAndEmit('click')\n    });\n\n    self.handler('focus', {\n      options: {\n        maxDistance: maxClickDistance\n      },\n      onEnd: function(ev, pointer) {\n        if (pointer.distance < this.state.options.maxDistance && canFocus(ev.target)) {\n          this.dispatchEvent(ev, 'focus', pointer);\n          ev.target.focus();\n        }\n      }\n    });\n\n    self.handler('mouseup', {\n      options: {\n        maxDistance: maxClickDistance\n      },\n      onEnd: checkDistanceAndEmit('mouseup')\n    });\n\n    self.handler('mousedown', {\n      onStart: function(ev) {\n        this.dispatchEvent(ev, 'mousedown');\n      }\n    });\n  }\n\n  function checkDistanceAndEmit(eventName) {\n    return function(ev, pointer) {\n      if (pointer.distance < this.state.options.maxDistance) {\n        this.dispatchEvent(ev, eventName, pointer);\n      }\n    };\n  }\n\n  /**\n   * Register an element to listen for a handler.\n   * This allows an element to override the default options for a handler.\n   * Additionally, some handlers like drag and hold only dispatch events if\n   * the domEvent happens inside an element that's registered to listen for these events.\n   *\n   * @see GestureHandler for how overriding of default options works.\n   * @example $mdGesture.register(myElement, 'drag', { minDistance: 20, horizontal: false })\n   */\n  function register(element, handlerName, options) {\n    var handler = HANDLERS[handlerName.replace(/^\\$md./, '')];\n    if (!handler) {\n      throw new Error('Failed to register element with handler ' + handlerName + '. ' +\n      'Available handlers: ' + Object.keys(HANDLERS).join(', '));\n    }\n    return handler.registerElement(element, options);\n  }\n\n  /*\n   * add a handler to $mdGesture. see below.\n   */\n  function addHandler(name, definition) {\n    var handler = new $$MdGestureHandler(name);\n    angular.extend(handler, definition);\n    HANDLERS[name] = handler;\n\n    return self;\n  }\n\n  /**\n   * Register handlers. These listen to touch/start/move events, interpret them,\n   * and dispatch gesture events depending on options & conditions. These are all\n   * instances of GestureHandler.\n   * @see GestureHandler\n   */\n  return self\n    /*\n     * The press handler dispatches an event on touchdown/touchend.\n     * It's a simple abstraction of touch/mouse/pointer start and end.\n     */\n    .handler('press', {\n      onStart: function (ev, pointer) {\n        this.dispatchEvent(ev, '$md.pressdown');\n      },\n      onEnd: function (ev, pointer) {\n        this.dispatchEvent(ev, '$md.pressup');\n      }\n    })\n\n    /*\n     * The hold handler dispatches an event if the user keeps their finger within\n     * the same <maxDistance> area for <delay> ms.\n     * The hold handler will only run if a parent of the touch target is registered\n     * to listen for hold events through $mdGesture.register()\n     */\n    .handler('hold', {\n      options: {\n        maxDistance: 6,\n        delay: 500\n      },\n      onCancel: function () {\n        $timeout.cancel(this.state.timeout);\n      },\n      onStart: function (ev, pointer) {\n        // For hold, require a parent to be registered with $mdGesture.register()\n        // Because we prevent scroll events, this is necessary.\n        if (!this.state.registeredParent) return this.cancel();\n\n        this.state.pos = {x: pointer.x, y: pointer.y};\n        this.state.timeout = $timeout(angular.bind(this, function holdDelayFn() {\n          this.dispatchEvent(ev, '$md.hold');\n          this.cancel(); // we're done!\n        }), this.state.options.delay, false);\n      },\n      onMove: function (ev, pointer) {\n        // Don't scroll while waiting for hold.\n        // If we don't preventDefault touchmove events here, Android will assume we don't\n        // want to listen to anymore touch events. It will start scrolling and stop sending\n        // touchmove events.\n        if (!touchActionProperty && ev.type === 'touchmove') ev.preventDefault();\n\n        // If the user moves greater than <maxDistance> pixels, stop the hold timer\n        // set in onStart\n        var dx = this.state.pos.x - pointer.x;\n        var dy = this.state.pos.y - pointer.y;\n        if (Math.sqrt(dx * dx + dy * dy) > this.options.maxDistance) {\n          this.cancel();\n        }\n      },\n      onEnd: function () {\n        this.onCancel();\n      }\n    })\n\n    /*\n     * The drag handler dispatches a drag event if the user holds and moves his finger greater than\n     * <minDistance> px in the x or y direction, depending on options.horizontal.\n     * The drag will be cancelled if the user moves his finger greater than <minDistance>*<cancelMultiplier> in\n     * the perpendicular direction. Eg if the drag is horizontal and the user moves his finger <minDistance>*<cancelMultiplier>\n     * pixels vertically, this handler won't consider the move part of a drag.\n     */\n    .handler('drag', {\n      options: {\n        minDistance: 6,\n        horizontal: true,\n        cancelMultiplier: 1.5\n      },\n      /**\n       * @param {angular.JQLite} element where touch action styles need to be adjusted\n       * @param {{horizontal: boolean}=} options object whose horizontal property can specify to\n       *  apply 'pan-y' or 'pan-x' touch actions.\n       */\n      onSetup: function(element, options) {\n        if (touchActionProperty) {\n          // We check for horizontal to be false, because otherwise we would overwrite the default opts.\n          this.oldTouchAction = element[0].style[touchActionProperty];\n          element[0].style[touchActionProperty] = options.horizontal ? 'pan-y' : 'pan-x';\n        }\n      },\n      /**\n       * @param {angular.JQLite} element where styles need to be cleaned up\n       */\n      onCleanup: function(element) {\n        if (this.oldTouchAction) {\n          element[0].style[touchActionProperty] = this.oldTouchAction;\n        } else {\n          element[0].style[touchActionProperty] = null;\n        }\n      },\n      onStart: function (ev) {\n        // For drag, require a parent to be registered with $mdGesture.register()\n        if (!this.state.registeredParent) this.cancel();\n      },\n      onMove: function (ev, pointer) {\n        var shouldStartDrag, shouldCancel;\n        // Don't scroll while deciding if this touchmove qualifies as a drag event.\n        // If we don't preventDefault touchmove events here, Android will assume we don't\n        // want to listen to anymore touch events. It will start scrolling and stop sending\n        // touchmove events.\n        if (!touchActionProperty && ev.type === 'touchmove') ev.preventDefault();\n\n        if (!this.state.dragPointer) {\n          if (this.state.options.horizontal) {\n            shouldStartDrag = Math.abs(pointer.distanceX) > this.state.options.minDistance;\n            shouldCancel = Math.abs(pointer.distanceY) > this.state.options.minDistance * this.state.options.cancelMultiplier;\n          } else {\n            shouldStartDrag = Math.abs(pointer.distanceY) > this.state.options.minDistance;\n            shouldCancel = Math.abs(pointer.distanceX) > this.state.options.minDistance * this.state.options.cancelMultiplier;\n          }\n\n          if (shouldStartDrag) {\n            // Create a new pointer representing this drag, starting at this point where the drag started.\n            this.state.dragPointer = makeStartPointer(ev);\n            updatePointerState(ev, this.state.dragPointer);\n            this.dispatchEvent(ev, '$md.dragstart', this.state.dragPointer);\n\n          } else if (shouldCancel) {\n            this.cancel();\n          }\n        } else {\n          this.dispatchDragMove(ev);\n        }\n      },\n      // Only dispatch dragmove events every frame; any more is unnecessary\n      dispatchDragMove: $$rAF.throttle(function (ev) {\n        // Make sure the drag didn't stop while waiting for the next frame\n        if (this.state.isRunning) {\n          updatePointerState(ev, this.state.dragPointer);\n          this.dispatchEvent(ev, '$md.drag', this.state.dragPointer);\n        }\n      }),\n      onEnd: function (ev, pointer) {\n        if (this.state.dragPointer) {\n          updatePointerState(ev, this.state.dragPointer);\n          this.dispatchEvent(ev, '$md.dragend', this.state.dragPointer);\n        }\n      }\n    })\n\n    /*\n     * The swipe handler will dispatch a swipe event if, on the end of a touch,\n     * the velocity and distance were high enough.\n     */\n    .handler('swipe', {\n      options: {\n        minVelocity: 0.65,\n        minDistance: 10\n      },\n      onEnd: function (ev, pointer) {\n        var eventType;\n\n        if (Math.abs(pointer.velocityX) > this.state.options.minVelocity &&\n          Math.abs(pointer.distanceX) > this.state.options.minDistance) {\n          eventType = pointer.directionX == 'left' ? '$md.swipeleft' : '$md.swiperight';\n          this.dispatchEvent(ev, eventType);\n        }\n        else if (Math.abs(pointer.velocityY) > this.state.options.minVelocity &&\n          Math.abs(pointer.distanceY) > this.state.options.minDistance) {\n          eventType = pointer.directionY == 'up' ? '$md.swipeup' : '$md.swipedown';\n          this.dispatchEvent(ev, eventType);\n        }\n      }\n    });\n}\n\n/**\n * MdGestureHandler\n * A GestureHandler is an object which is able to dispatch custom dom events\n * based on native dom {touch,pointer,mouse}{start,move,end} events.\n *\n * A gesture will manage its lifecycle through the start,move,end, and cancel\n * functions, which are called by native dom events.\n *\n * A gesture has the concept of 'options' (eg. a swipe's required velocity), which can be\n * overridden by elements registering through $mdGesture.register().\n */\nfunction GestureHandler (name) {\n  this.name = name;\n  this.state = {};\n}\n\nfunction MdGestureHandler() {\n  var hasJQuery =  (typeof window.jQuery !== 'undefined') && (angular.element === window.jQuery);\n\n  GestureHandler.prototype = {\n    options: {},\n    // jQuery listeners don't work with custom DOMEvents, so we have to dispatch events\n    // differently when jQuery is loaded\n    dispatchEvent: hasJQuery ?  jQueryDispatchEvent : nativeDispatchEvent,\n\n    // These are overridden by the registered handler\n    onSetup: angular.noop,\n    onCleanup: angular.noop,\n    onStart: angular.noop,\n    onMove: angular.noop,\n    onEnd: angular.noop,\n    onCancel: angular.noop,\n\n    // onStart sets up a new state for the handler, which includes options from the\n    // nearest registered parent element of ev.target.\n    start: function (ev, pointer) {\n      if (this.state.isRunning) return;\n      var parentTarget = this.getNearestParent(ev.target);\n      // Get the options from the nearest registered parent\n      var parentTargetOptions = parentTarget && parentTarget.$mdGesture[this.name] || {};\n\n      this.state = {\n        isRunning: true,\n        // Override the default options with the nearest registered parent's options\n        options: angular.extend({}, this.options, parentTargetOptions),\n        // Pass in the registered parent node to the state so the onStart listener can use\n        registeredParent: parentTarget\n      };\n      this.onStart(ev, pointer);\n    },\n    move: function (ev, pointer) {\n      if (!this.state.isRunning) return;\n      this.onMove(ev, pointer);\n    },\n    end: function (ev, pointer) {\n      if (!this.state.isRunning) return;\n      this.state.isRunning = false;\n      this.onEnd(ev, pointer);\n    },\n    cancel: function (ev, pointer) {\n      this.onCancel(ev, pointer);\n      this.state = {};\n    },\n\n    // Find and return the nearest parent element that has been registered to\n    // listen for this handler via $mdGesture.register(element, 'handlerName').\n    getNearestParent: function (node) {\n      var current = node;\n      while (current) {\n        if ((current.$mdGesture || {})[this.name]) {\n          return current;\n        }\n        current = current.parentNode;\n      }\n      return null;\n    },\n\n    // Called from $mdGesture.register when an element registers itself with a handler.\n    // Store the options the user gave on the DOMElement itself. These options will\n    // be retrieved with getNearestParent when the handler starts.\n    registerElement: function (element, options) {\n      var self = this;\n      element[0].$mdGesture = element[0].$mdGesture || {};\n      element[0].$mdGesture[this.name] = options || {};\n      element.on('$destroy', onDestroy);\n\n      self.onSetup(element, options || {});\n\n      return onDestroy;\n\n      function onDestroy() {\n        delete element[0].$mdGesture[self.name];\n        element.off('$destroy', onDestroy);\n\n        self.onCleanup(element, options || {});\n      }\n    }\n  };\n\n  return GestureHandler;\n\n  /**\n   * Dispatch an event with jQuery\n   * TODO: Make sure this sends bubbling events\n   *\n   * @param srcEvent the original DOM touch event that started this.\n   * @param eventType the name of the custom event to send (eg 'click' or '$md.drag')\n   * @param eventPointer the pointer object that matches this event.\n   */\n  function jQueryDispatchEvent(srcEvent, eventType, eventPointer) {\n    eventPointer = eventPointer || pointer;\n    var eventObj = new angular.element.Event(eventType);\n\n    eventObj.$material = true;\n    eventObj.pointer = eventPointer;\n    eventObj.srcEvent = srcEvent;\n\n    angular.extend(eventObj, {\n      clientX: eventPointer.x,\n      clientY: eventPointer.y,\n      screenX: eventPointer.x,\n      screenY: eventPointer.y,\n      pageX: eventPointer.x,\n      pageY: eventPointer.y,\n      ctrlKey: srcEvent.ctrlKey,\n      altKey: srcEvent.altKey,\n      shiftKey: srcEvent.shiftKey,\n      metaKey: srcEvent.metaKey\n    });\n    angular.element(eventPointer.target).trigger(eventObj);\n  }\n\n  /**\n   * NOTE: nativeDispatchEvent is very performance sensitive.\n   * @param srcEvent the original DOM touch event that started this.\n   * @param eventType the name of the custom event to send (eg 'click' or '$md.drag')\n   * @param eventPointer the pointer object that matches this event.\n   */\n  function nativeDispatchEvent(srcEvent, eventType, eventPointer) {\n    eventPointer = eventPointer || pointer;\n    var eventObj;\n\n    if (eventType === 'click' || eventType === 'mouseup' || eventType === 'mousedown') {\n      if (typeof window.MouseEvent === \"function\") {\n        eventObj = new MouseEvent(eventType, {\n          bubbles: true,\n          cancelable: true,\n          screenX: Number(srcEvent.screenX),\n          screenY: Number(srcEvent.screenY),\n          clientX: Number(eventPointer.x),\n          clientY: Number(eventPointer.y),\n          ctrlKey: srcEvent.ctrlKey,\n          altKey: srcEvent.altKey,\n          shiftKey: srcEvent.shiftKey,\n          metaKey: srcEvent.metaKey,\n          button: srcEvent.button,\n          buttons: srcEvent.buttons,\n          relatedTarget: srcEvent.relatedTarget || null\n        });\n      } else {\n        eventObj = document.createEvent('MouseEvents');\n        // This has been deprecated\n        // https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/initMouseEvent\n        eventObj.initMouseEvent(\n          eventType, true, true, window, srcEvent.detail,\n          eventPointer.x, eventPointer.y, eventPointer.x, eventPointer.y,\n          srcEvent.ctrlKey, srcEvent.altKey, srcEvent.shiftKey, srcEvent.metaKey,\n          srcEvent.button, srcEvent.relatedTarget || null\n        );\n      }\n    } else {\n      if (typeof window.CustomEvent === \"function\") {\n        eventObj = new CustomEvent(eventType, {\n          bubbles: true,\n          cancelable: true,\n          detail: {}\n        });\n      } else {\n        // This has been deprecated\n        // https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/initCustomEvent\n        eventObj = document.createEvent('CustomEvent');\n        eventObj.initCustomEvent(eventType, true, true, {});\n      }\n    }\n    eventObj.$material = true;\n    eventObj.pointer = eventPointer;\n    eventObj.srcEvent = srcEvent;\n    eventPointer.target.dispatchEvent(eventObj);\n  }\n}\n\n/**\n * Attach Gestures: hook document and check shouldHijack clicks\n * @ngInject\n */\nfunction attachToDocument($mdGesture, $$MdGestureHandler, $mdUtil) {\n  if (disableAllGestures) {\n    return;\n  }\n\n  if (!isInitialized && $mdGesture.isHijackingClicks) {\n    /*\n     * If hijack clicks is true, we preventDefault any click that wasn't\n     * sent by AngularJS Material. This is because on older Android & iOS, a false, or 'ghost',\n     * click event will be sent ~400ms after a touchend event happens.\n     * The only way to know if this click is real is to prevent any normal\n     * click events, and add a flag to events sent by material so we know not to prevent those.\n     *\n     * Two exceptions to click events that should be prevented are:\n     *  - click events sent by the keyboard (eg form submit)\n     *  - events that originate from an Ionic app\n     */\n    document.addEventListener('click'    , clickHijacker     , true);\n    document.addEventListener('mouseup'  , mouseInputHijacker, true);\n    document.addEventListener('mousedown', mouseInputHijacker, true);\n    document.addEventListener('focus'    , mouseInputHijacker, true);\n\n    isInitialized = true;\n  }\n\n  function mouseInputHijacker(ev) {\n    var isKeyClick = !ev.clientX && !ev.clientY;\n\n    if (\n      !isKeyClick &&\n      !ev.$material &&\n      !ev.isIonicTap &&\n      !isInputEventFromLabelClick(ev) &&\n      (ev.type !== 'mousedown' || (!canFocus(ev.target) && !canFocus(document.activeElement)))\n    ) {\n      ev.preventDefault();\n      ev.stopPropagation();\n    }\n  }\n\n  /**\n   * Ignore click events that don't come from AngularJS Material, Ionic, Input Label clicks,\n   * or key presses that generate click events. This helps to ignore the ghost tap events on\n   * older mobile browsers that get sent after a 300-400ms delay.\n   * @param ev MouseEvent or modified MouseEvent with $material, pointer, and other fields\n   */\n  function clickHijacker(ev) {\n    var isKeyClick;\n    if ($mdUtil.isIos) {\n      isKeyClick = angular.isDefined(ev.webkitForce) && ev.webkitForce === 0;\n    } else {\n      isKeyClick = ev.clientX === 0 && ev.clientY === 0;\n    }\n    if (!isKeyClick && !ev.$material && !ev.isIonicTap && !isInputEventFromLabelClick(ev)) {\n      ev.preventDefault();\n      ev.stopPropagation();\n      lastLabelClickPos = null;\n    } else {\n      lastLabelClickPos = null;\n      if (ev.target.tagName.toLowerCase() === 'label') {\n        lastLabelClickPos = {x: ev.x, y: ev.y};\n      }\n    }\n  }\n\n\n  // Listen to all events to cover all platforms.\n  var START_EVENTS = 'mousedown touchstart pointerdown';\n  var MOVE_EVENTS = 'mousemove touchmove pointermove';\n  var END_EVENTS = 'mouseup mouseleave touchend touchcancel pointerup pointercancel';\n\n  angular.element(document)\n    .on(START_EVENTS, gestureStart)\n    .on(MOVE_EVENTS, gestureMove)\n    .on(END_EVENTS, gestureEnd)\n    // For testing\n    .on('$$mdGestureReset', function gestureClearCache () {\n      lastPointer = pointer = null;\n    });\n\n  /**\n   * When a DOM event happens, run all registered gesture handlers' lifecycle\n   * methods which match the DOM event.\n   * Eg. when a 'touchstart' event happens, runHandlers('start') will call and\n   * run `handler.cancel()` and `handler.start()` on all registered handlers.\n   */\n  function runHandlers(handlerEvent, event) {\n    var handler;\n    for (var name in HANDLERS) {\n      handler = HANDLERS[name];\n      if (handler instanceof $$MdGestureHandler) {\n\n        if (handlerEvent === 'start') {\n          // Run cancel to reset any handlers' state\n          handler.cancel();\n        }\n        handler[handlerEvent](event, pointer);\n      }\n    }\n  }\n\n  /*\n   * gestureStart vets if a start event is legitimate (and not part of a 'ghost click' from iOS/Android)\n   * If it is legitimate, we initiate the pointer state and mark the current pointer's type\n   * For example, for a touchstart event, mark the current pointer as a 'touch' pointer, so mouse events\n   * won't effect it.\n   */\n  function gestureStart(ev) {\n    // If we're already touched down, abort\n    if (pointer) return;\n\n    var now = +Date.now();\n\n    // iOS & old android bug: after a touch event, a click event is sent 350 ms later.\n    // If <400ms have passed, don't allow an event of a different type than the previous event\n    if (lastPointer && !typesMatch(ev, lastPointer) && (now - lastPointer.endTime < 1500)) {\n      return;\n    }\n\n    pointer = makeStartPointer(ev);\n\n    runHandlers('start', ev);\n  }\n\n  /**\n   * If a move event happens of the right type, update the pointer and run all the move handlers.\n   * \"of the right type\": if a mousemove happens but our pointer started with a touch event, do\n   * nothing.\n   */\n  function gestureMove(ev) {\n    if (!pointer || !typesMatch(ev, pointer)) return;\n\n    updatePointerState(ev, pointer);\n    runHandlers('move', ev);\n  }\n\n  /**\n   * If an end event happens of the right type, update the pointer, run endHandlers, and save the\n   * pointer as 'lastPointer'.\n   */\n  function gestureEnd(ev) {\n    if (!pointer || !typesMatch(ev, pointer)) return;\n\n    updatePointerState(ev, pointer);\n    pointer.endTime = +Date.now();\n\n    if (ev.type !== 'pointercancel') {\n      runHandlers('end', ev);\n    }\n\n    lastPointer = pointer;\n    pointer = null;\n  }\n\n}\n\n// ********************\n// Module Functions\n// ********************\n\n/*\n * Initiate the pointer. x, y, and the pointer's type.\n */\nfunction makeStartPointer(ev) {\n  var point = getEventPoint(ev);\n  var startPointer = {\n    startTime: +Date.now(),\n    target: ev.target,\n    // 'p' for pointer events, 'm' for mouse, 't' for touch\n    type: ev.type.charAt(0)\n  };\n  startPointer.startX = startPointer.x = point.pageX;\n  startPointer.startY = startPointer.y = point.pageY;\n  return startPointer;\n}\n\n/*\n * return whether the pointer's type matches the event's type.\n * Eg if a touch event happens but the pointer has a mouse type, return false.\n */\nfunction typesMatch(ev, pointer) {\n  return ev && pointer && ev.type.charAt(0) === pointer.type;\n}\n\n/**\n * Gets whether the given event is an input event that was caused by clicking on an\n * associated label element.\n *\n * This is necessary because the browser will, upon clicking on a label element, fire an\n * *extra* click event on its associated input (if any). mdGesture is able to flag the label\n * click as with `$material` correctly, but not the second input click.\n *\n * In order to determine whether an input event is from a label click, we compare the (x, y) for\n * the event to the (x, y) for the most recent label click (which is cleared whenever a non-label\n * click occurs). Unfortunately, there are no event properties that tie the input and the label\n * together (such as relatedTarget).\n *\n * @param {MouseEvent} event\n * @returns {boolean}\n */\nfunction isInputEventFromLabelClick(event) {\n  return lastLabelClickPos\n      && lastLabelClickPos.x === event.x\n      && lastLabelClickPos.y === event.y;\n}\n\n/*\n * Update the given pointer based upon the given DOMEvent.\n * Distance, velocity, direction, duration, etc\n */\nfunction updatePointerState(ev, pointer) {\n  var point = getEventPoint(ev);\n  var x = pointer.x = point.pageX;\n  var y = pointer.y = point.pageY;\n\n  pointer.distanceX = x - pointer.startX;\n  pointer.distanceY = y - pointer.startY;\n  pointer.distance = Math.sqrt(\n    pointer.distanceX * pointer.distanceX + pointer.distanceY * pointer.distanceY\n  );\n\n  pointer.directionX = pointer.distanceX > 0 ? 'right' : pointer.distanceX < 0 ? 'left' : '';\n  pointer.directionY = pointer.distanceY > 0 ? 'down' : pointer.distanceY < 0 ? 'up' : '';\n\n  pointer.duration = +Date.now() - pointer.startTime;\n  pointer.velocityX = pointer.distanceX / pointer.duration;\n  pointer.velocityY = pointer.distanceY / pointer.duration;\n}\n\n/**\n * Normalize the point where the DOM event happened whether it's touch or mouse.\n * @returns point event obj with pageX and pageY on it.\n */\nfunction getEventPoint(ev) {\n  ev = ev.originalEvent || ev; // support jQuery events\n  return (ev.touches && ev.touches[0]) ||\n    (ev.changedTouches && ev.changedTouches[0]) ||\n    ev;\n}\n\n/** Checks whether an element can be focused. */\nfunction canFocus(element) {\n  return (\n    !!element &&\n    element.getAttribute('tabindex') !== '-1' &&\n    !element.hasAttribute('disabled') &&\n    (\n      element.hasAttribute('tabindex') ||\n      element.hasAttribute('href') ||\n      element.isContentEditable ||\n      ['INPUT', 'SELECT', 'BUTTON', 'TEXTAREA', 'VIDEO', 'AUDIO'].indexOf(element.nodeName) !== -1\n    )\n  );\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.core.interaction\n * @description\n * User interaction detection to provide proper accessibility.\n */\nMdInteractionService.$inject = [\"$timeout\", \"$mdUtil\", \"$rootScope\"];\nangular\n  .module('material.core.interaction', [])\n  .service('$mdInteraction', MdInteractionService);\n\n\n/**\n * @ngdoc service\n * @name $mdInteraction\n * @module material.core.interaction\n *\n * @description\n *\n * Service which keeps track of the last interaction type and validates them for several browsers.\n * The service hooks into the document's body and listens for touch, mouse and keyboard events.\n *\n * The most recent interaction type can be retrieved by calling the `getLastInteractionType` method.\n *\n * Here is an example markup for using the interaction service.\n *\n * <hljs lang=\"js\">\n *   var lastType = $mdInteraction.getLastInteractionType();\n *\n *   if (lastType === 'keyboard') {\n *     // We only restore the focus for keyboard users.\n *     restoreFocus();\n *   }\n * </hljs>\n *\n */\nfunction MdInteractionService($timeout, $mdUtil, $rootScope) {\n  this.$timeout = $timeout;\n  this.$mdUtil = $mdUtil;\n  this.$rootScope = $rootScope;\n\n  // IE browsers can also trigger pointer events, which also leads to an interaction.\n  this.pointerEvent = 'MSPointerEvent' in window ? 'MSPointerDown' : 'PointerEvent' in window ? 'pointerdown' : null;\n  this.bodyElement = angular.element(document.body);\n  this.isBuffering = false;\n  this.bufferTimeout = null;\n  this.lastInteractionType = null;\n  this.lastInteractionTime = null;\n  this.inputHandler = this.onInputEvent.bind(this);\n  this.bufferedInputHandler = this.onBufferInputEvent.bind(this);\n\n  // Type Mappings for the different events\n  // There will be three three interaction types\n  // `keyboard`, `mouse` and `touch`\n  // type `pointer` will be evaluated in `pointerMap` for IE Browser events\n  this.inputEventMap = {\n    'keydown': 'keyboard',\n    'mousedown': 'mouse',\n    'mouseenter': 'mouse',\n    'touchstart': 'touch',\n    'pointerdown': 'pointer',\n    'MSPointerDown': 'pointer'\n  };\n\n  // IE PointerDown events will be validated in `touch` or `mouse`\n  // Index numbers referenced here: https://msdn.microsoft.com/library/windows/apps/hh466130.aspx\n  this.iePointerMap = {\n    2: 'touch',\n    3: 'touch',\n    4: 'mouse'\n  };\n\n  this.initializeEvents();\n  this.$rootScope.$on('$destroy', this.deregister.bind(this));\n}\n\n/**\n * Removes all event listeners created by $mdInteration on the\n * body element.\n */\nMdInteractionService.prototype.deregister = function() {\n\n    this.bodyElement.off('keydown mousedown', this.inputHandler);\n\n    if ('ontouchstart' in document.documentElement) {\n      this.bodyElement.off('touchstart', this.bufferedInputHandler);\n    }\n\n    if (this.pointerEvent) {\n      this.bodyElement.off(this.pointerEvent, this.inputHandler);\n    }\n\n};\n\n/**\n * Initializes the interaction service, by registering all interaction events to the\n * body element.\n */\nMdInteractionService.prototype.initializeEvents = function() {\n\n  this.bodyElement.on('keydown mousedown', this.inputHandler);\n\n  if ('ontouchstart' in document.documentElement) {\n    this.bodyElement.on('touchstart', this.bufferedInputHandler);\n  }\n\n  if (this.pointerEvent) {\n    this.bodyElement.on(this.pointerEvent, this.inputHandler);\n  }\n\n};\n\n/**\n * Event listener for normal interaction events, which should be tracked.\n * @param event {MouseEvent|KeyboardEvent|PointerEvent|TouchEvent}\n */\nMdInteractionService.prototype.onInputEvent = function(event) {\n  if (this.isBuffering) {\n    return;\n  }\n\n  var type = this.inputEventMap[event.type];\n\n  if (type === 'pointer') {\n    type = this.iePointerMap[event.pointerType] || event.pointerType;\n  }\n\n  this.lastInteractionType = type;\n  this.lastInteractionTime = this.$mdUtil.now();\n};\n\n/**\n * Event listener for interaction events which should be buffered (touch events).\n * @param event {TouchEvent}\n */\nMdInteractionService.prototype.onBufferInputEvent = function(event) {\n  this.$timeout.cancel(this.bufferTimeout);\n\n  this.onInputEvent(event);\n  this.isBuffering = true;\n\n  // The timeout of 650ms is needed to delay the touchstart, because otherwise the touch will call\n  // the `onInput` function multiple times.\n  this.bufferTimeout = this.$timeout(function() {\n    this.isBuffering = false;\n  }.bind(this), 650, false);\n\n};\n\n/**\n * @ngdoc method\n * @name $mdInteraction#getLastInteractionType\n * @description Retrieves the last interaction type triggered in body.\n * @returns {string|null} Last interaction type.\n */\nMdInteractionService.prototype.getLastInteractionType = function() {\n  return this.lastInteractionType;\n};\n\n/**\n * @ngdoc method\n * @name $mdInteraction#isUserInvoked\n * @description Method to detect whether any interaction happened recently or not.\n * @param {number=} checkDelay Time to check for any interaction to have been triggered.\n * @returns {boolean} Whether there was any interaction or not.\n */\nMdInteractionService.prototype.isUserInvoked = function(checkDelay) {\n  var delay = angular.isNumber(checkDelay) ? checkDelay : 15;\n\n  // Check for any interaction to be within the specified check time.\n  return this.lastInteractionTime >= this.$mdUtil.now() - delay;\n};\n\n})();\n(function(){\n\"use strict\";\n\nangular.module('material.core')\n  .provider('$$interimElement', InterimElementProvider);\n\n/**\n * @ngdoc service\n * @name $$interimElementProvider\n * @module material.core.interimElement\n *\n * @description\n *\n * Factory that constructs `$$interimElement.$service` services.\n * Used internally in material design for elements that appear on screen temporarily.\n * The service provides a promise-like API for interacting with the temporary\n * elements.\n *\n * <hljs lang=\"js\">\n *   app.service('$mdToast', function($$interimElement) {\n *     var $mdToast = $$interimElement(toastDefaultOptions);\n *     return $mdToast;\n *   });\n * </hljs>\n *\n * @param {object=} defaultOptions Options used by default for the `show` method on the service.\n *\n * @returns {$$interimElement.$service}\n */\n\nfunction InterimElementProvider() {\n  InterimElementFactory.$inject = [\"$document\", \"$q\", \"$rootScope\", \"$timeout\", \"$rootElement\", \"$animate\", \"$mdUtil\", \"$mdCompiler\", \"$mdTheming\", \"$injector\", \"$exceptionHandler\"];\n  createInterimElementProvider.$get = InterimElementFactory;\n  return createInterimElementProvider;\n\n  /**\n   * Returns a new provider which allows configuration of a new interimElement\n   * service. Allows configuration of default options & methods for options,\n   * as well as configuration of 'preset' methods (eg dialog.basic(): basic is a preset method)\n   */\n  function createInterimElementProvider(interimFactoryName) {\n    factory.$inject = [\"$$interimElement\", \"$injector\"];\n    var EXPOSED_METHODS = ['onHide', 'onShow', 'onRemove'];\n\n    var customMethods = {};\n    var providerConfig = {\n      presets: {}\n    };\n\n    var provider = {\n      setDefaults: setDefaults,\n      addPreset: addPreset,\n      addMethod: addMethod,\n      $get: factory\n    };\n\n    /**\n     * all interim elements will come with the 'build' preset\n     */\n    provider.addPreset('build', {\n      methods: ['controller', 'controllerAs', 'resolve', 'multiple',\n        'template', 'templateUrl', 'themable', 'transformTemplate', 'parent', 'contentElement']\n    });\n\n    return provider;\n\n    /**\n     * Save the configured defaults to be used when the factory is instantiated\n     */\n    function setDefaults(definition) {\n      providerConfig.optionsFactory = definition.options;\n      providerConfig.methods = (definition.methods || []).concat(EXPOSED_METHODS);\n      return provider;\n    }\n\n    /**\n     * Add a method to the factory that isn't specific to any interim element operations\n     */\n    function addMethod(name, fn) {\n      customMethods[name] = fn;\n      return provider;\n    }\n\n    /**\n     * Save the configured preset to be used when the factory is instantiated\n     */\n    function addPreset(name, definition) {\n      definition = definition || {};\n      definition.methods = definition.methods || [];\n      definition.options = definition.options || function() { return {}; };\n\n      if (/^cancel|hide|show$/.test(name)) {\n        throw new Error(\"Preset '\" + name + \"' in \" + interimFactoryName + \" is reserved!\");\n      }\n      if (definition.methods.indexOf('_options') > -1) {\n        throw new Error(\"Method '_options' in \" + interimFactoryName + \" is reserved!\");\n      }\n      providerConfig.presets[name] = {\n        methods: definition.methods.concat(EXPOSED_METHODS),\n        optionsFactory: definition.options,\n        argOption: definition.argOption\n      };\n      return provider;\n    }\n\n    function addPresetMethod(presetName, methodName, method) {\n      providerConfig.presets[presetName][methodName] = method;\n    }\n\n    /**\n     * Create a factory that has the given methods & defaults implementing interimElement\n     */\n    /* @ngInject */\n    function factory($$interimElement, $injector) {\n      var defaultMethods;\n      var defaultOptions;\n      var interimElementService = $$interimElement();\n\n      /*\n       * publicService is what the developer will be using.\n       * It has methods hide(), cancel(), show(), build(), and any other\n       * presets which were set during the config phase.\n       */\n      var publicService = {\n        hide: interimElementService.hide,\n        cancel: interimElementService.cancel,\n        show: showInterimElement,\n\n        // Special internal method to destroy an interim element without animations\n        // used when navigation changes causes a $scope.$destroy() action\n        destroy : destroyInterimElement\n      };\n\n\n      defaultMethods = providerConfig.methods || [];\n      // This must be invoked after the publicService is initialized\n      defaultOptions = invokeFactory(providerConfig.optionsFactory, {});\n\n      // Copy over the simple custom methods\n      angular.forEach(customMethods, function(fn, name) {\n        publicService[name] = fn;\n      });\n\n      angular.forEach(providerConfig.presets, function(definition, name) {\n        var presetDefaults = invokeFactory(definition.optionsFactory, {});\n        var presetMethods = (definition.methods || []).concat(defaultMethods);\n\n        // Every interimElement built with a preset has a field called `$type`,\n        // which matches the name of the preset.\n        // Eg in preset 'confirm', options.$type === 'confirm'\n        angular.extend(presetDefaults, { $type: name });\n\n        // This creates a preset class which has setter methods for every\n        // method given in the `.addPreset()` function, as well as every\n        // method given in the `.setDefaults()` function.\n        //\n        // @example\n        // .setDefaults({\n        //   methods: ['hasBackdrop', 'clickOutsideToClose', 'escapeToClose', 'targetEvent'],\n        //   options: dialogDefaultOptions\n        // })\n        // .addPreset('alert', {\n        //   methods: ['title', 'ok'],\n        //   options: alertDialogOptions\n        // })\n        //\n        // Set values will be passed to the options when interimElement.show() is called.\n        function Preset(opts) {\n          this._options = angular.extend({}, presetDefaults, opts);\n        }\n        angular.forEach(presetMethods, function(name) {\n          Preset.prototype[name] = function(value) {\n            this._options[name] = value;\n            return this;\n          };\n        });\n\n        // Create shortcut method for one-linear methods\n        if (definition.argOption) {\n          var methodName = 'show' + name.charAt(0).toUpperCase() + name.slice(1);\n          publicService[methodName] = function(arg) {\n            var config = publicService[name](arg);\n            return publicService.show(config);\n          };\n        }\n\n        // eg $mdDialog.alert() will return a new alert preset\n        publicService[name] = function(arg) {\n          // If argOption is supplied, eg `argOption: 'content'`, then we assume\n          // if the argument is not an options object then it is the `argOption` option.\n          //\n          // @example `$mdToast.simple('hello')` // sets options.content to hello\n          //                                     // because argOption === 'content'\n          if (arguments.length && definition.argOption &&\n              !angular.isObject(arg) && !angular.isArray(arg))  {\n\n            return (new Preset())[definition.argOption](arg);\n\n          } else {\n            return new Preset(arg);\n          }\n\n        };\n      });\n\n      return publicService;\n\n      /**\n       *\n       */\n      function showInterimElement(opts) {\n        // opts is either a preset which stores its options on an _options field,\n        // or just an object made up of options\n        opts = opts || { };\n        if (opts._options) opts = opts._options;\n\n        return interimElementService.show(\n          angular.extend({}, defaultOptions, opts)\n        );\n      }\n\n      /**\n       *  Special method to hide and destroy an interimElement WITHOUT\n       *  any 'leave` or hide animations ( an immediate force hide/remove )\n       *\n       *  NOTE: This calls the onRemove() subclass method for each component...\n       *  which must have code to respond to `options.$destroy == true`\n       */\n      function destroyInterimElement(opts) {\n          return interimElementService.destroy(opts);\n      }\n\n      /**\n       * Helper to call $injector.invoke with a local of the factory name for\n       * this provider.\n       * If an $mdDialog is providing options for a dialog and tries to inject\n       * $mdDialog, a circular dependency error will happen.\n       * We get around that by manually injecting $mdDialog as a local.\n       */\n      function invokeFactory(factory, defaultVal) {\n        var locals = {};\n        locals[interimFactoryName] = publicService;\n        return $injector.invoke(factory || function() { return defaultVal; }, {}, locals);\n      }\n    }\n  }\n\n  /* @ngInject */\n  function InterimElementFactory($document, $q, $rootScope, $timeout, $rootElement, $animate,\n                                 $mdUtil, $mdCompiler, $mdTheming, $injector, $exceptionHandler) {\n    return function createInterimElementService() {\n      var SHOW_CANCELLED = false;\n\n      /**\n       * @ngdoc service\n       * @name $$interimElementProvider.$service\n       *\n       * @description\n       * A service used to control inserting and removing of an element from the DOM.\n       * It is used by $mdBottomSheet, $mdDialog, $mdToast, $mdMenu, $mdPanel, and $mdSelect.\n       */\n      var service;\n\n      var showPromises = []; // Promises for the interim's which are currently opening.\n      var hidePromises = []; // Promises for the interim's which are currently hiding.\n      var showingInterims = []; // Interim elements which are currently showing up.\n\n      // Publish instance $$interimElement service;\n      return service = {\n        show: show,\n        hide: waitForInterim(hide),\n        cancel: waitForInterim(cancel),\n        destroy : destroy,\n        $injector_: $injector\n      };\n\n      /**\n       * @ngdoc method\n       * @name $$interimElementProvider.$service#show\n       * @kind function\n       *\n       * @description\n       * Adds the `$interimElement` to the DOM and returns a special promise that will be resolved\n       * or rejected with hide or cancel, respectively.\n       *\n       * @param {Object} options map of options and values\n       * @returns {Promise} a Promise that will be resolved when hide() is called or rejected when\n       *  cancel() is called.\n       */\n      function show(options) {\n        options = options || {};\n        var interimElement = new InterimElement(options || {});\n\n        // When an interim element is currently showing, we have to cancel it.\n        // Just hiding it, will resolve the InterimElement's promise, the promise should be\n        // rejected instead.\n        var hideAction = options.multiple ? $q.resolve() : $q.all(showPromises);\n\n        if (!options.multiple) {\n          // Wait for all opening interim's to finish their transition.\n          hideAction = hideAction.then(function() {\n            // Wait for all closing and showing interim's to be completely closed.\n            var promiseArray = hidePromises.concat(showingInterims.map(service.cancel));\n            return $q.all(promiseArray);\n          });\n        }\n\n        var showAction = hideAction.then(function() {\n\n          return interimElement\n            .show()\n            .then(function () {\n              showingInterims.push(interimElement);\n            })\n            .catch(function (reason) {\n              return reason;\n            })\n            .finally(function() {\n              showPromises.splice(showPromises.indexOf(showAction), 1);\n            });\n\n        });\n\n        showPromises.push(showAction);\n\n        // In AngularJS 1.6+, exceptions inside promises will cause a rejection. We need to handle\n        // the rejection and only log it if it's an error.\n        interimElement.deferred.promise.catch(function(fault) {\n          if (fault instanceof Error) {\n            $exceptionHandler(fault);\n          }\n\n          return fault;\n        });\n\n        // Return a promise that will be resolved when the interim\n        // element is hidden or cancelled...\n        return interimElement.deferred.promise;\n      }\n\n      /**\n       * @ngdoc method\n       * @name $$interimElementProvider.$service#hide\n       * @kind function\n       *\n       * @description\n       * Removes the `$interimElement` from the DOM and resolves the Promise returned from `show()`.\n       *\n       * @param {*} reason Data used to resolve the Promise\n       * @param {object} options map of options and values\n       * @returns {Promise} a Promise that will be resolved after the element has been removed\n       *  from the DOM.\n       */\n      function hide(reason, options) {\n        options = options || {};\n\n        if (options.closeAll) {\n          // We have to make a shallow copy of the array, because otherwise the map will break.\n          return $q.all(showingInterims.slice().reverse().map(closeElement));\n        } else if (options.closeTo !== undefined) {\n          return $q.all(showingInterims.slice(options.closeTo).map(closeElement));\n        }\n\n        // Hide the latest showing interim element.\n        return closeElement(showingInterims[showingInterims.length - 1]);\n\n        /**\n         * @param {InterimElement} interim element to close\n         * @returns {Promise<InterimElement>}\n         */\n        function closeElement(interim) {\n          if (!interim) {\n            return $q.when(reason);\n          }\n\n          var hideAction = interim\n            .remove(reason, false, options || { })\n            .catch(function(reason) { return reason; })\n            .finally(function() {\n              hidePromises.splice(hidePromises.indexOf(hideAction), 1);\n            });\n\n          showingInterims.splice(showingInterims.indexOf(interim), 1);\n          hidePromises.push(hideAction);\n\n          return interim.deferred.promise;\n        }\n      }\n\n      /**\n       * @ngdoc method\n       * @name $$interimElementProvider.$service#cancel\n       * @kind function\n       *\n       * @description\n       * Removes the `$interimElement` from the DOM and rejects the Promise returned from `show()`.\n       *\n       * @param {*} reason Data used to resolve the Promise\n       * @param {object} options map of options and values\n       * @returns {Promise} Promise that will be resolved after the element has been removed\n       *  from the DOM.\n       */\n      function cancel(reason, options) {\n        var interim = showingInterims.pop();\n        if (!interim) {\n          return $q.when(reason);\n        }\n\n        var cancelAction = interim\n          .remove(reason, true, options || {})\n          .catch(function(reason) { return reason; })\n          .finally(function() {\n            hidePromises.splice(hidePromises.indexOf(cancelAction), 1);\n          });\n\n        hidePromises.push(cancelAction);\n\n        // Since AngularJS 1.6.7, promises will be logged to $exceptionHandler when the promise\n        // is not handling the rejection. We create a pseudo catch handler, which will prevent the\n        // promise from being logged to the $exceptionHandler.\n        return interim.deferred.promise.catch(angular.noop);\n      }\n\n      /**\n       * Creates a function to wait for at least one interim element to be available.\n       * @param callbackFn Function to be used as callback\n       * @returns {Function}\n       */\n      function waitForInterim(callbackFn) {\n        return function() {\n          var fnArguments = arguments;\n\n          if (!showingInterims.length) {\n            // When there are still interim's opening, then wait for the first interim element to\n            // finish its open animation.\n            if (showPromises.length) {\n              return showPromises[0].finally(function () {\n                return callbackFn.apply(service, fnArguments);\n              });\n            }\n\n            return $q.when(\"No interim elements currently showing up.\");\n          }\n\n          return callbackFn.apply(service, fnArguments);\n        };\n      }\n\n      /**\n       * @ngdoc method\n       * @name $$interimElementProvider.$service#destroy\n       * @kind function\n       *\n       * Special method to quick-remove the interim element without running animations. This is\n       * useful when the parent component has been or is being destroyed.\n       *\n       * Note: interim elements are in \"interim containers\".\n       */\n      function destroy(targetEl) {\n        var interim = !targetEl ? showingInterims.shift() : null;\n\n        var parentEl = angular.element(targetEl).length && angular.element(targetEl)[0].parentNode;\n\n        if (parentEl) {\n          // Try to find the interim in the stack which corresponds to the supplied DOM element.\n          var filtered = showingInterims.filter(function(entry) {\n            return entry.options.element[0] === parentEl;\n          });\n\n          // Note: This function might be called when the element already has been removed,\n          // in which case we won't find any matches.\n          if (filtered.length) {\n            interim = filtered[0];\n            showingInterims.splice(showingInterims.indexOf(interim), 1);\n          }\n        }\n\n        return interim ? interim.remove(SHOW_CANCELLED, false, { '$destroy': true }) :\n                         $q.when(SHOW_CANCELLED);\n      }\n\n      /*\n       * Internal Interim Element Object\n       * Used internally to manage the DOM element and related data\n       */\n      function InterimElement(options) {\n        var self, element, showAction = $q.when(true);\n\n        options = configureScopeAndTransitions(options);\n\n        return self = {\n          options : options,\n          deferred: $q.defer(),\n          show    : createAndTransitionIn,\n          remove  : transitionOutAndRemove\n        };\n\n        /**\n         * Compile, link, and show this interim element. Use optional autoHide and transition-in\n         * effects.\n         * @return {Q.Promise}\n         */\n        function createAndTransitionIn() {\n          return $q(function(resolve, reject) {\n\n            // Trigger onCompiling callback before the compilation starts.\n            // This is useful, when modifying options, which can be influenced by developers.\n            options.onCompiling && options.onCompiling(options);\n\n            compileElement(options)\n              .then(function(compiledData) {\n                element = linkElement(compiledData, options);\n\n                // Expose the cleanup function from the compiler.\n                options.cleanupElement = compiledData.cleanup;\n\n                showAction = showElement(element, options, compiledData.controller)\n                  .then(resolve, rejectAll);\n              }).catch(rejectAll);\n\n            function rejectAll(fault) {\n              // Force the '$md<xxx>.show()' promise to reject\n              self.deferred.reject(fault);\n\n              // Continue rejection propagation\n              reject(fault);\n            }\n          });\n        }\n\n        /**\n         * After the show process has finished/rejected:\n         * - announce 'removing',\n         * - perform the transition-out, and\n         * - perform optional clean up scope.\n         */\n        function transitionOutAndRemove(response, isCancelled, opts) {\n\n          // abort if the show() and compile failed\n          if (!element) return $q.when(false);\n\n          options = angular.extend(options || {}, opts || {});\n          options.cancelAutoHide && options.cancelAutoHide();\n          options.element.triggerHandler('$mdInterimElementRemove');\n\n          if (options.$destroy === true) {\n\n            return hideElement(options.element, options).then(function(){\n              (isCancelled && rejectAll(response)) || resolveAll(response);\n            });\n\n          } else {\n            $q.when(showAction).finally(function() {\n              hideElement(options.element, options).then(function() {\n                isCancelled ? rejectAll(response) : resolveAll(response);\n              }, rejectAll);\n            });\n\n            return self.deferred.promise;\n          }\n\n\n          /**\n           * The `show()` returns a promise that will be resolved when the interim\n           * element is hidden or cancelled...\n           */\n          function resolveAll(response) {\n            self.deferred.resolve(response);\n          }\n\n          /**\n           * Force the '$md<xxx>.show()' promise to reject\n           */\n          function rejectAll(fault) {\n            self.deferred.reject(fault);\n          }\n        }\n\n        /**\n         * Prepare optional isolated scope and prepare $animate with default enter and leave\n         * transitions for the new element instance.\n         */\n        function configureScopeAndTransitions(options) {\n          options = options || { };\n          if (options.template) {\n            options.template = $mdUtil.processTemplate(options.template);\n          }\n\n          return angular.extend({\n            preserveScope: false,\n            cancelAutoHide : angular.noop,\n            scope: options.scope || $rootScope.$new(options.isolateScope),\n\n            /**\n             * Default usage to enable $animate to transition-in; can be easily overridden via 'options'\n             */\n            onShow: function transitionIn(scope, element, options) {\n              return $animate.enter(element, options.parent);\n            },\n\n            /**\n             * Default usage to enable $animate to transition-out; can be easily overridden via 'options'\n             */\n            onRemove: function transitionOut(scope, element) {\n              // Element could be undefined if a new element is shown before\n              // the old one finishes compiling.\n              return element && $animate.leave(element) || $q.when();\n            }\n          }, options);\n\n        }\n\n        /**\n         * Compile an element with a templateUrl, controller, and locals\n         * @param {Object} options\n         * @return {Q.Promise<{element: JQLite=, link: Function, locals: Object, cleanup: any=,\n         *  controller: Object=}>}\n         */\n        function compileElement(options) {\n\n          var compiled = !options.skipCompile ? $mdCompiler.compile(options) : null;\n\n          return compiled || $q(function (resolve) {\n              resolve({\n                locals: {},\n                link: function () {\n                  return options.element;\n                }\n              });\n            });\n        }\n\n        /**\n         * Link an element with compiled configuration\n         * @param {{element: JQLite=, link: Function, locals: Object, controller: Object=}} compileData\n         * @param {Object} options\n         * @return {JQLite}\n         */\n        function linkElement(compileData, options) {\n          angular.extend(compileData.locals, options);\n\n          var element = compileData.link(options.scope);\n\n          // Search for parent at insertion time, if not specified\n          options.element = element;\n          options.parent = findParent(element, options);\n          if (options.themable) $mdTheming(element);\n\n          return element;\n        }\n\n        /**\n         * Search for parent at insertion time, if not specified.\n         * @param {JQLite} element\n         * @param {Object} options\n         * @return {JQLite}\n         */\n        function findParent(element, options) {\n          var parent = options.parent;\n\n          // Search for parent at insertion time, if not specified\n          if (angular.isFunction(parent)) {\n            parent = parent(options.scope, element, options);\n          } else if (angular.isString(parent)) {\n            parent = angular.element($document[0].querySelector(parent));\n          } else {\n            parent = angular.element(parent);\n          }\n\n          // If parent querySelector/getter function fails, or it's just null,\n          // find a default.\n          if (!(parent || {}).length) {\n            var el;\n            if ($rootElement[0] && $rootElement[0].querySelector) {\n              el = $rootElement[0].querySelector(':not(svg) > body');\n            }\n            if (!el) el = $rootElement[0];\n            if (el.nodeName === '#comment') {\n              el = $document[0].body;\n            }\n            return angular.element(el);\n          }\n\n          return parent;\n        }\n\n        /**\n         * If auto-hide is enabled, start timer and prepare cancel function\n         */\n        function startAutoHide() {\n          var autoHideTimer, cancelAutoHide = angular.noop;\n\n          if (options.hideDelay) {\n            autoHideTimer = $timeout(service.hide, options.hideDelay) ;\n            cancelAutoHide = function() {\n              $timeout.cancel(autoHideTimer);\n            };\n          }\n\n          // Cache for subsequent use\n          options.cancelAutoHide = function() {\n            cancelAutoHide();\n            options.cancelAutoHide = undefined;\n          };\n        }\n\n        /**\n         * Show the element (with transitions), notify complete and start optional auto hiding\n         * timer.\n         * @param {JQLite} element\n         * @param {Object} options\n         * @param {Object} controller\n         * @return {Q.Promise<JQLite>}\n         */\n        function showElement(element, options, controller) {\n          // Trigger onShowing callback before the `show()` starts\n          var notifyShowing = options.onShowing || angular.noop;\n          // Trigger onComplete callback when the `show()` finishes\n          var notifyComplete = options.onComplete || angular.noop;\n\n          // Necessary for consistency between AngularJS 1.5 and 1.6.\n          try {\n            // This fourth controller parameter is used by $mdDialog in beforeShow().\n            notifyShowing(options.scope, element, options, controller);\n          } catch (e) {\n            return $q.reject(e);\n          }\n\n          return $q(function (resolve, reject) {\n            try {\n              // Start transitionIn\n              $q.when(options.onShow(options.scope, element, options))\n                .then(function () {\n                  notifyComplete(options.scope, element, options);\n                  startAutoHide();\n\n                  resolve(element);\n                }, reject);\n\n            } catch (e) {\n              reject(e.message);\n            }\n          });\n        }\n\n        function hideElement(element, options) {\n          var announceRemoving = options.onRemoving || angular.noop;\n\n          return $q(function (resolve, reject) {\n            try {\n              // Start transitionIn\n              var action = $q.when(options.onRemove(options.scope, element, options) || true);\n\n              // Trigger callback *before* the remove operation starts\n              announceRemoving(element, action);\n\n              if (options.$destroy) {\n                // For $destroy, onRemove should be synchronous\n                resolve(element);\n\n                if (!options.preserveScope && options.scope) {\n                  // scope destroy should still be be done after the current digest is done\n                  action.then(function() { options.scope.$destroy(); });\n                }\n              } else {\n                // Wait until transition-out is done\n                action.then(function () {\n                  if (!options.preserveScope && options.scope) {\n                    options.scope.$destroy();\n                  }\n\n                  resolve(element);\n                }, reject);\n              }\n            } catch (e) {\n              reject(e.message);\n            }\n          });\n        }\n\n      }\n    };\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  var $mdUtil, $interpolate, $log;\n\n  var SUFFIXES = /(-gt)?-(sm|md|lg|print)/g;\n  var WHITESPACE = /\\s+/g;\n\n  var FLEX_OPTIONS = ['grow', 'initial', 'auto', 'none', 'noshrink', 'nogrow'];\n  var LAYOUT_OPTIONS = ['row', 'column'];\n  var ALIGNMENT_MAIN_AXIS= [\"\", \"start\", \"center\", \"end\", \"stretch\", \"space-around\", \"space-between\"];\n  var ALIGNMENT_CROSS_AXIS= [\"\", \"start\", \"center\", \"end\", \"stretch\"];\n\n  var config = {\n    /**\n     * Enable directive attribute-to-class conversions\n     * Developers can use `<body md-layout-css />` to quickly\n     * disable the Layout directives and prohibit the injection of Layout classNames\n     */\n    enabled: true,\n\n    /**\n     * List of mediaQuery breakpoints and associated suffixes\n     *   [\n     *    { suffix: \"sm\", mediaQuery: \"screen and (max-width: 599px)\" },\n     *    { suffix: \"md\", mediaQuery: \"screen and (min-width: 600px) and (max-width: 959px)\" }\n     *   ]\n     */\n    breakpoints: []\n  };\n\n  registerLayoutAPI(angular.module('material.core.layout', ['ng']));\n\n  /**\n   *   registerLayoutAPI()\n   *\n   *   The original AngularJS Material Layout solution used attribute selectors and CSS.\n   *\n   *  ```html\n   *  <div layout=\"column\"> My Content </div>\n   *  ```\n   *\n   *  ```css\n   *  [layout] {\n   *    box-sizing: border-box;\n   *    display:flex;\n   *  }\n   *  [layout=column] {\n   *    flex-direction : column\n   *  }\n   *  ```\n   *\n   *  Use of attribute selectors creates significant performance impacts in some\n   *  browsers... mainly IE.\n   *\n   *  This module registers directives that allow the same layout attributes to be\n   *  interpreted and converted to class selectors. The directive will add equivalent classes to\n   *  each element that contains a Layout directive.\n   *\n   * ```html\n   *   <div layout=\"column\" class=\"layout layout-column\"> My Content </div>\n   * ```\n   *\n   *  ```css\n   *  .layout {\n   *    box-sizing: border-box;\n   *    display:flex;\n   *  }\n   *  .layout-column {\n   *    flex-direction : column\n   *  }\n   *  ```\n   */\n  function registerLayoutAPI(module){\n    var PREFIX_REGEXP = /^((?:x|data)[:\\-_])/i;\n    var SPECIAL_CHARS_REGEXP = /([:\\-_]+(.))/g;\n\n    // NOTE: these are also defined in constants::MEDIA_PRIORITY and constants::MEDIA\n    var BREAKPOINTS     = [\"\", \"xs\", \"gt-xs\", \"sm\", \"gt-sm\", \"md\", \"gt-md\", \"lg\", \"gt-lg\", \"xl\", \"print\"];\n    var API_WITH_VALUES = [\"layout\", \"flex\", \"flex-order\", \"flex-offset\", \"layout-align\"];\n    var API_NO_VALUES   = [\"show\", \"hide\", \"layout-padding\", \"layout-margin\"];\n\n\n    // Build directive registration functions for the standard Layout API... for all breakpoints.\n    angular.forEach(BREAKPOINTS, function(mqb) {\n\n      // Attribute directives with expected, observable value(s)\n      angular.forEach(API_WITH_VALUES, function(name){\n        var fullName = mqb ? name + \"-\" + mqb : name;\n        module.directive(directiveNormalize(fullName), attributeWithObserve(fullName));\n      });\n\n      // Attribute directives with no expected value(s)\n      angular.forEach(API_NO_VALUES, function(name){\n        var fullName = mqb ? name + \"-\" + mqb : name;\n        module.directive(directiveNormalize(fullName), attributeWithoutValue(fullName));\n      });\n\n    });\n\n    // Register other, special directive functions for the Layout features:\n    module\n      .provider('$$mdLayout', function() {\n        // Publish internal service for Layouts\n        return {\n          $get : angular.noop,\n          validateAttributeValue : validateAttributeValue,\n          validateAttributeUsage : validateAttributeUsage,\n          /**\n           * Easy way to disable/enable the Layout API.\n           * When disabled, this stops all attribute-to-classname generations\n           */\n          disableLayouts  : function(isDisabled) {\n            config.enabled =  (isDisabled !== true);\n          }\n        };\n      })\n\n      .directive('mdLayoutCss'        , disableLayoutDirective)\n      .directive('ngCloak'            , buildCloakInterceptor('ng-cloak'))\n\n      .directive('layoutWrap'   , attributeWithoutValue('layout-wrap'))\n      .directive('layoutNowrap' , attributeWithoutValue('layout-nowrap'))\n      .directive('layoutNoWrap' , attributeWithoutValue('layout-no-wrap'))\n      .directive('layoutFill'   , attributeWithoutValue('layout-fill'))\n\n      // Determine if\n      .config(detectDisabledLayouts);\n\n    /**\n     * Converts snake_case to camelCase.\n     * Also there is special case for Moz prefix starting with upper case letter.\n     * @param name Name to normalize\n     */\n    function directiveNormalize(name) {\n      return name\n        .replace(PREFIX_REGEXP, '')\n        .replace(SPECIAL_CHARS_REGEXP, function(_, separator, letter, offset) {\n          return offset ? letter.toUpperCase() : letter;\n        });\n    }\n  }\n\n\n  /**\n    * Detect if any of the HTML tags has a [md-layouts-disabled] attribute;\n    * If yes, then immediately disable all layout API features\n    *\n    * Note: this attribute should be specified on either the HTML or BODY tags\n    * @ngInject\n    */\n   function detectDisabledLayouts() {\n     var isDisabled = !!document.querySelector('[md-layouts-disabled]');\n     config.enabled = !isDisabled;\n   }\n\n  /**\n   * Special directive that will disable ALL Layout conversions of layout\n   * attribute(s) to classname(s).\n   *\n   * <link rel=\"stylesheet\" href=\"angular-material.min.css\">\n   * <link rel=\"stylesheet\" href=\"angular-material.layout.css\">\n   *\n   * <body md-layout-css>\n   *  ...\n   * </body>\n   *\n   * Note: Using md-layout-css directive requires the developer to load the Material\n   * Layout Attribute stylesheet (which only uses attribute selectors):\n   *\n   *       `angular-material.layout.css`\n   *\n   * Another option is to use the LayoutProvider to configure and disable the attribute\n   * conversions; this would obviate the use of the `md-layout-css` directive\n   */\n  function disableLayoutDirective() {\n    // Return a 1x-only, first-match attribute directive\n    config.enabled = false;\n\n    return {\n      restrict : 'A',\n      priority : '900'\n    };\n  }\n\n  /**\n   * Tail-hook ngCloak to delay the uncloaking while Layout transformers\n   * finish processing. Eliminates flicker with Material.Layouts\n   */\n  function buildCloakInterceptor(className) {\n    return ['$timeout', function($timeout){\n      return {\n        restrict : 'A',\n        priority : -10,   // run after normal ng-cloak\n        compile  : function(element) {\n          if (!config.enabled) return angular.noop;\n\n          // Re-add the cloak\n          element.addClass(className);\n\n          return function(scope, element) {\n            // Wait while layout injectors configure, then uncloak\n            // NOTE: $rAF does not delay enough... and this is a 1x-only event,\n            //       $timeout is acceptable.\n            $timeout(function(){\n              element.removeClass(className);\n            }, 10, false);\n          };\n        }\n      };\n    }];\n  }\n\n\n  // *********************************************************************************\n  //\n  // These functions create registration functions for AngularJS Material Layout attribute\n  // directives. This provides easy translation to switch AngularJS Material attribute selectors to\n  // CLASS selectors and directives; which has huge performance implications for IE Browsers.\n  //\n  // *********************************************************************************\n\n  /**\n   * Creates a directive registration function where a possible dynamic attribute\n   * value will be observed/watched.\n   * @param {string} className attribute name; eg `layout-gt-md` with value =\"row\"\n   */\n  function attributeWithObserve(className) {\n\n    return ['$mdUtil', '$interpolate', \"$log\", function(_$mdUtil_, _$interpolate_, _$log_) {\n      $mdUtil = _$mdUtil_;\n      $interpolate = _$interpolate_;\n      $log = _$log_;\n\n      return {\n        restrict: 'A',\n        compile: function(element, attr) {\n          var linkFn;\n          if (config.enabled) {\n            // immediately replace static (non-interpolated) invalid values...\n\n            validateAttributeUsage(className, attr, element, $log);\n\n            validateAttributeValue(className,\n              getNormalizedAttrValue(className, attr, \"\"),\n              buildUpdateFn(element, className, attr)\n            );\n\n            linkFn = translateWithValueToCssClass;\n          }\n\n          // Use for postLink to account for transforms after ng-transclude.\n          return linkFn || angular.noop;\n        }\n      };\n    }];\n\n    /**\n     * Observe deprecated layout attributes and update the element's layout classes to match.\n     */\n    function translateWithValueToCssClass(scope, element, attrs) {\n      var updateFn = updateClassWithValue(element, className, attrs);\n      var unwatch = attrs.$observe(attrs.$normalize(className), updateFn);\n\n      updateFn(getNormalizedAttrValue(className, attrs, \"\"));\n      scope.$on(\"$destroy\", function() { unwatch(); });\n    }\n  }\n\n  /**\n   * Creates a registration function for AngularJS Material Layout attribute directive.\n   * This is a `simple` transpose of attribute usage to class usage; where we ignore\n   * any attribute value.\n   */\n  function attributeWithoutValue(className) {\n    return ['$mdUtil', '$interpolate', \"$log\", function(_$mdUtil_, _$interpolate_, _$log_) {\n      $mdUtil = _$mdUtil_;\n      $interpolate = _$interpolate_;\n      $log = _$log_;\n\n      return {\n        restrict: 'A',\n        compile: function(element, attr) {\n          var linkFn;\n          if (config.enabled) {\n            // immediately replace static (non-interpolated) invalid values...\n\n            validateAttributeValue(className,\n              getNormalizedAttrValue(className, attr, \"\"),\n              buildUpdateFn(element, className, attr)\n            );\n\n            translateToCssClass(null, element);\n\n            // Use for postLink to account for transforms after ng-transclude.\n            linkFn = translateToCssClass;\n          }\n\n          return linkFn || angular.noop;\n        }\n      };\n    }];\n\n    /**\n     * Add transformed class selector.\n     */\n    function translateToCssClass(scope, element) {\n      element.addClass(className);\n    }\n  }\n\n  /**\n   * After link-phase, do NOT remove deprecated layout attribute selector.\n   * Instead watch the attribute so interpolated data-bindings to layout\n   * selectors will continue to be supported.\n   *\n   * $observe() the className and update with new class (after removing the last one)\n   *\n   * e.g. `layout=\"{{layoutDemo.direction}}\"` will update...\n   *\n   * NOTE: The value must match one of the specified styles in the CSS.\n   * For example `flex-gt-md=\"{{size}}`  where `scope.size == 47` will NOT work since\n   * only breakpoints for 0, 5, 10, 15... 100, 33, 34, 66, 67 are defined.\n   */\n  function updateClassWithValue(element, className) {\n    var lastClass;\n\n    return function updateClassFn(newValue) {\n      var value = validateAttributeValue(className, newValue || \"\");\n      if (angular.isDefined(value)) {\n        if (lastClass) element.removeClass(lastClass);\n        lastClass = !value ? className : className + \"-\" + value.trim().replace(WHITESPACE, \"-\");\n        element.addClass(lastClass);\n      }\n    };\n  }\n\n  /**\n   * Centralize warnings for known flexbox issues (especially IE-related issues)\n   */\n  function validateAttributeUsage(className, attr, element, $log){\n    var message, usage, url;\n    var nodeName = element[0].nodeName.toLowerCase();\n\n    switch (className.replace(SUFFIXES,\"\")) {\n      case \"flex\":\n        if ((nodeName === \"md-button\") || (nodeName === \"fieldset\")){\n          // @see https://github.com/philipwalton/flexbugs#9-some-html-elements-cant-be-flex-containers\n          // Use <div flex> wrapper inside (preferred) or outside\n\n          usage = \"<\" + nodeName + \" \" + className + \"></\" + nodeName + \">\";\n          url = \"https://github.com/philipwalton/flexbugs#9-some-html-elements-cant-be-flex-containers\";\n          message = \"Markup '{0}' may not work as expected in IE Browsers. Consult '{1}' for details.\";\n\n          $log.warn($mdUtil.supplant(message, [usage, url]));\n        }\n    }\n  }\n\n\n  /**\n   * For the Layout attribute value, validate or replace with default fallback value.\n   */\n  function validateAttributeValue(className, value, updateFn) {\n    var origValue = value;\n\n    if (!needsInterpolation(value)) {\n      switch (className.replace(SUFFIXES,\"\")) {\n        case 'layout'        :\n          if (!findIn(value, LAYOUT_OPTIONS)) {\n            value = LAYOUT_OPTIONS[0];    // 'row';\n          }\n          break;\n\n        case 'flex'          :\n          if (!findIn(value, FLEX_OPTIONS)) {\n            if (isNaN(value)) {\n              value = '';\n            }\n          }\n          break;\n\n        case 'flex-offset' :\n        case 'flex-order'    :\n          if (!value || isNaN(+value)) {\n            value = '0';\n          }\n          break;\n\n        case 'layout-align'  :\n          var axis = extractAlignAxis(value);\n          value = $mdUtil.supplant(\"{main}-{cross}\",axis);\n          break;\n\n        case 'layout-padding' :\n        case 'layout-margin'  :\n        case 'layout-fill'    :\n        case 'layout-wrap'    :\n        case 'layout-nowrap' :\n          value = '';\n          break;\n      }\n\n      if (value !== origValue) {\n        (updateFn || angular.noop)(value);\n      }\n    }\n\n    return value ? value.trim() : \"\";\n  }\n\n  /**\n   * Replace current attribute value with fallback value\n   */\n  function buildUpdateFn(element, className, attrs) {\n    return function updateAttrValue(fallback) {\n      if (!needsInterpolation(fallback)) {\n        // Do not modify the element's attribute value; so\n        // uses '<ui-layout layout=\"/api/sidebar.html\" />' will not\n        // be affected. Just update the attrs value.\n        attrs[attrs.$normalize(className)] = fallback;\n      }\n    };\n  }\n\n  /**\n   * See if the original value has interpolation symbols:\n   * e.g.  flex-gt-md=\"{{triggerPoint}}\"\n   */\n  function needsInterpolation(value) {\n    return (value || \"\").indexOf($interpolate.startSymbol()) > -1;\n  }\n\n  function getNormalizedAttrValue(className, attrs, defaultVal) {\n    var normalizedAttr = attrs.$normalize(className);\n    return attrs[normalizedAttr] ? attrs[normalizedAttr].trim().replace(WHITESPACE, \"-\") :\n      defaultVal || null;\n  }\n\n  function findIn(item, list, replaceWith) {\n    item = replaceWith && item ? item.replace(WHITESPACE, replaceWith) : item;\n\n    var found = false;\n    if (item) {\n      list.forEach(function(it) {\n        it = replaceWith ? it.replace(WHITESPACE, replaceWith) : it;\n        found = found || (it === item);\n      });\n    }\n    return found;\n  }\n\n  function extractAlignAxis(attrValue) {\n    var axis = {\n      main : \"start\",\n      cross: \"stretch\"\n    }, values;\n\n    attrValue = (attrValue || \"\");\n\n    if (attrValue.indexOf(\"-\") === 0 || attrValue.indexOf(\" \") === 0) {\n      // For missing main-axis values\n      attrValue = \"none\" + attrValue;\n    }\n\n    values = attrValue.toLowerCase().trim().replace(WHITESPACE, \"-\").split(\"-\");\n    if (values.length && (values[0] === \"space\")) {\n      // for main-axis values of \"space-around\" or \"space-between\"\n      values = [values[0]+\"-\"+values[1],values[2]];\n    }\n\n    if (values.length > 0) axis.main  = values[0] || axis.main;\n    if (values.length > 1) axis.cross = values[1] || axis.cross;\n\n    if (ALIGNMENT_MAIN_AXIS.indexOf(axis.main) < 0)   axis.main = \"start\";\n    if (ALIGNMENT_CROSS_AXIS.indexOf(axis.cross) < 0) axis.cross = \"stretch\";\n\n    return axis;\n  }\n})();\n\n})();\n(function(){\n\"use strict\";\n\n/**\r\n * @ngdoc module\r\n * @name material.core.liveannouncer\r\n * @description\r\n * AngularJS Material Live Announcer to provide accessibility for Voice Readers.\r\n */\r\nMdLiveAnnouncer.$inject = [\"$timeout\"];\r\nangular\r\n  .module('material.core')\r\n  .service('$mdLiveAnnouncer', MdLiveAnnouncer);\r\n\r\n/**\r\n * @ngdoc service\r\n * @name $mdLiveAnnouncer\r\n * @module material.core.liveannouncer\r\n *\r\n * @description\r\n *\r\n * Service to announce messages to supported screenreaders.\r\n *\r\n * > The `$mdLiveAnnouncer` service is internally used for components to provide proper accessibility.\r\n *\r\n * <hljs lang=\"js\">\r\n *   module.controller('AppCtrl', function($mdLiveAnnouncer) {\r\n *     // Basic announcement (Polite Mode)\r\n *     $mdLiveAnnouncer.announce('Hey Google');\r\n *\r\n *     // Custom announcement (Assertive Mode)\r\n *     $mdLiveAnnouncer.announce('Hey Google', 'assertive');\r\n *   });\r\n * </hljs>\r\n *\r\n */\r\nfunction MdLiveAnnouncer($timeout) {\r\n  /** @private @const @type {!angular.$timeout} */\r\n  this._$timeout = $timeout;\r\n\r\n  /** @private @const @type {!HTMLElement} */\r\n  this._liveElement = this._createLiveElement();\r\n\r\n  /** @private @const @type {!number} */\r\n  this._announceTimeout = 100;\r\n}\r\n\r\n/**\r\n * @ngdoc method\r\n * @name $mdLiveAnnouncer#announce\r\n * @description Announces messages to supported screenreaders.\r\n * @param {string} message Message to be announced to the screenreader\r\n * @param {'off'|'polite'|'assertive'} politeness The politeness of the announcer element.\r\n */\r\nMdLiveAnnouncer.prototype.announce = function(message, politeness) {\r\n  if (!politeness) {\r\n    politeness = 'polite';\r\n  }\r\n\r\n  var self = this;\r\n\r\n  self._liveElement.textContent = '';\r\n  self._liveElement.setAttribute('aria-live', politeness);\r\n\r\n  // This 100ms timeout is necessary for some browser + screen-reader combinations:\r\n  // - Both JAWS and NVDA over IE11 will not announce anything without a non-zero timeout.\r\n  // - With Chrome and IE11 with NVDA or JAWS, a repeated (identical) message won't be read a\r\n  //   second time without clearing and then using a non-zero delay.\r\n  // (using JAWS 17 at time of this writing).\r\n  self._$timeout(function() {\r\n    self._liveElement.textContent = message;\r\n  }, self._announceTimeout, false);\r\n};\r\n\r\n/**\r\n * Creates a live announcer element, which listens for DOM changes and announces them\r\n * to the screenreaders.\r\n * @returns {!HTMLElement}\r\n * @private\r\n */\r\nMdLiveAnnouncer.prototype._createLiveElement = function() {\r\n  var liveEl = document.createElement('div');\r\n\r\n  liveEl.classList.add('md-visually-hidden');\r\n  liveEl.setAttribute('role', 'status');\r\n  liveEl.setAttribute('aria-atomic', 'true');\r\n  liveEl.setAttribute('aria-live', 'polite');\r\n\r\n  document.body.appendChild(liveEl);\r\n\r\n  return liveEl;\r\n};\r\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc service\n * @name $$mdMeta\n * @module material.core.meta\n *\n * @description\n *\n * A provider and a service that simplifies meta tags access\n *\n * Note: This is intended only for use with dynamic meta tags such as browser color and title.\n * Tags that are only processed when the page is rendered (such as `charset`, and `http-equiv`)\n * will not work since `$$mdMeta` adds the tags after the page has already been loaded.\n *\n * ```js\n * app.config(function($$mdMetaProvider) {\n *   var removeMeta = $$mdMetaProvider.setMeta('meta-name', 'content');\n *   var metaValue  = $$mdMetaProvider.getMeta('meta-name'); // -> 'content'\n *\n *   removeMeta();\n * });\n *\n * app.controller('myController', function($$mdMeta) {\n *   var removeMeta = $$mdMeta.setMeta('meta-name', 'content');\n *   var metaValue  = $$mdMeta.getMeta('meta-name'); // -> 'content'\n *\n *   removeMeta();\n * });\n * ```\n *\n * @returns {$$mdMeta.$service}\n *\n */\nangular.module('material.core.meta', [])\n  .provider('$$mdMeta', function () {\n    var head = angular.element(document.head);\n    var metaElements = {};\n\n    /**\n     * Checks if the requested element was written manually and maps it\n     *\n     * @param {string} name meta tag 'name' attribute value\n     * @returns {boolean} returns true if there is an element with the requested name\n     */\n    function mapExistingElement(name) {\n      if (metaElements[name]) {\n        return true;\n      }\n\n      var element = document.getElementsByName(name)[0];\n\n      if (!element) {\n        return false;\n      }\n\n      metaElements[name] = angular.element(element);\n\n      return true;\n    }\n\n    /**\n     * @ngdoc method\n     * @name $$mdMeta#setMeta\n     *\n     * @description\n     * Creates meta element with the 'name' and 'content' attributes,\n     * if the meta tag is already created than we replace the 'content' value\n     *\n     * @param {string} name meta tag 'name' attribute value\n     * @param {string} content meta tag 'content' attribute value\n     * @returns {function} remove function\n     *\n     */\n    function setMeta(name, content) {\n      mapExistingElement(name);\n\n      if (!metaElements[name]) {\n        var newMeta = angular.element('<meta name=\"' + name + '\" content=\"' + content + '\"/>');\n        head.append(newMeta);\n        metaElements[name] = newMeta;\n      }\n      else {\n        metaElements[name].attr('content', content);\n      }\n\n      return function () {\n        metaElements[name].attr('content', '');\n        metaElements[name].remove();\n        delete metaElements[name];\n      };\n    }\n\n    /**\n     * @ngdoc method\n     * @name $$mdMeta#getMeta\n     *\n     * @description\n     * Gets the 'content' attribute value of the wanted meta element\n     *\n     * @param {string} name meta tag 'name' attribute value\n     * @returns {string} content attribute value\n     */\n    function getMeta(name) {\n      if (!mapExistingElement(name)) {\n        throw Error('$$mdMeta: could not find a meta tag with the name \\'' + name + '\\'');\n      }\n\n      return metaElements[name].attr('content');\n    }\n\n    var module = {\n      setMeta: setMeta,\n      getMeta: getMeta\n    };\n\n    return angular.extend({}, module, {\n      $get: function () {\n        return module;\n      }\n    });\n  });\n})();\n(function(){\n\"use strict\";\n\n  /**\n   * @ngdoc module\n   * @name material.core.componentRegistry\n   *\n   * @description\n   * A component instance registration service.\n   * Note: currently this as a private service in the SideNav component.\n   */\n  ComponentRegistry.$inject = [\"$log\", \"$q\"];\n  angular.module('material.core')\n    .factory('$mdComponentRegistry', ComponentRegistry);\n\n  /*\n   * @private\n   * @ngdoc factory\n   * @name ComponentRegistry\n   * @module material.core.componentRegistry\n   *\n   */\n  function ComponentRegistry($log, $q) {\n\n    var self;\n    var instances = [];\n    var pendings = { };\n\n    return self = {\n      /**\n       * Used to print an error when an instance for a handle isn't found.\n       */\n      notFoundError: function(handle, msgContext) {\n        $log.error((msgContext || \"\") + 'No instance found for handle', handle);\n      },\n      /**\n       * Return all registered instances as an array.\n       */\n      getInstances: function() {\n        return instances;\n      },\n\n      /**\n       * Get a registered instance.\n       * @param handle the String handle to look up for a registered instance.\n       */\n      get: function(handle) {\n        if (!isValidID(handle)) return null;\n\n        var i, j, instance;\n        for (i = 0, j = instances.length; i < j; i++) {\n          instance = instances[i];\n          if (instance.$$mdHandle === handle) {\n            return instance;\n          }\n        }\n        return null;\n      },\n\n      /**\n       * Register an instance.\n       * @param instance the instance to register\n       * @param handle the handle to identify the instance under.\n       */\n      register: function(instance, handle) {\n        if (!handle) return angular.noop;\n\n        instance.$$mdHandle = handle;\n        instances.push(instance);\n        resolveWhen();\n\n        return deregister;\n\n        /**\n         * Remove registration for an instance\n         */\n        function deregister() {\n          var index = instances.indexOf(instance);\n          if (index !== -1) {\n            instances.splice(index, 1);\n          }\n        }\n\n        /**\n         * Resolve any pending promises for this instance\n         */\n        function resolveWhen() {\n          var dfd = pendings[handle];\n          if (dfd) {\n            dfd.forEach(function (promise) {\n              promise.resolve(instance);\n            });\n            delete pendings[handle];\n          }\n        }\n      },\n\n      /**\n       * Async accessor to registered component instance\n       * If not available then a promise is created to notify\n       * all listeners when the instance is registered.\n       */\n      when : function(handle) {\n        if (isValidID(handle)) {\n          var deferred = $q.defer();\n          var instance = self.get(handle);\n\n          if (instance)  {\n            deferred.resolve(instance);\n          } else {\n            if (pendings[handle] === undefined) {\n              pendings[handle] = [];\n            }\n            pendings[handle].push(deferred);\n          }\n\n          return deferred.promise;\n        }\n        return $q.reject(\"Invalid `md-component-id` value.\");\n      }\n\n    };\n\n    function isValidID(handle){\n      return handle && (handle !== \"\");\n    }\n\n  }\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  /**\n   * @ngdoc service\n   * @name $mdButtonInkRipple\n   * @module material.core\n   *\n   * @description\n   * Provides ripple effects for md-button.  See $mdInkRipple service for all possible configuration options.\n   *\n   * @param {object=} scope Scope within the current context\n   * @param {object=} element The element the ripple effect should be applied to\n   * @param {object=} options (Optional) Configuration options to override the default ripple configuration\n   */\n\n  MdButtonInkRipple.$inject = [\"$mdInkRipple\"];\n  angular.module('material.core')\n    .factory('$mdButtonInkRipple', MdButtonInkRipple);\n\n  function MdButtonInkRipple($mdInkRipple) {\n    return {\n      attach: function attachRipple(scope, element, options) {\n        options = angular.extend(optionsForElement(element), options);\n\n        return $mdInkRipple.attach(scope, element, options);\n      }\n    };\n\n    function optionsForElement(element) {\n      if (element.hasClass('md-icon-button')) {\n        return {\n          isMenuItem: element.hasClass('md-menu-item'),\n          fitRipple: true,\n          center: true\n        };\n      } else {\n        return {\n          isMenuItem: element.hasClass('md-menu-item'),\n          dimBackground: true\n        };\n      }\n    }\n  }\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n    /**\n   * @ngdoc service\n   * @name $mdCheckboxInkRipple\n   * @module material.core\n   *\n   * @description\n   * Provides ripple effects for md-checkbox.  See $mdInkRipple service for all possible configuration options.\n   *\n   * @param {object=} scope Scope within the current context\n   * @param {object=} element The element the ripple effect should be applied to\n   * @param {object=} options (Optional) Configuration options to override the defaultripple configuration\n   */\n\n  MdCheckboxInkRipple.$inject = [\"$mdInkRipple\"];\n  angular.module('material.core')\n    .factory('$mdCheckboxInkRipple', MdCheckboxInkRipple);\n\n  function MdCheckboxInkRipple($mdInkRipple) {\n    return {\n      attach: attach\n    };\n\n    function attach(scope, element, options) {\n      return $mdInkRipple.attach(scope, element, angular.extend({\n        center: true,\n        dimBackground: false,\n        fitRipple: true\n      }, options));\n    }\n  }\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  /**\n   * @ngdoc service\n   * @name $mdListInkRipple\n   * @module material.core\n   *\n   * @description\n   * Provides ripple effects for md-list.  See $mdInkRipple service for all possible configuration options.\n   *\n   * @param {object=} scope Scope within the current context\n   * @param {object=} element The element the ripple effect should be applied to\n   * @param {object=} options (Optional) Configuration options to override the defaultripple configuration\n   */\n\n  MdListInkRipple.$inject = [\"$mdInkRipple\"];\n  angular.module('material.core')\n    .factory('$mdListInkRipple', MdListInkRipple);\n\n  function MdListInkRipple($mdInkRipple) {\n    return {\n      attach: attach\n    };\n\n    function attach(scope, element, options) {\n      return $mdInkRipple.attach(scope, element, angular.extend({\n        center: false,\n        dimBackground: true,\n        outline: false,\n        rippleSize: 'full'\n      }, options));\n    }\n  }\n})();\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.core.ripple\n * @description\n * Ripple\n */\nInkRippleCtrl.$inject = [\"$scope\", \"$element\", \"rippleOptions\", \"$window\", \"$timeout\", \"$mdUtil\", \"$mdColorUtil\"];\nInkRippleDirective.$inject = [\"$mdButtonInkRipple\", \"$mdCheckboxInkRipple\"];\nangular.module('material.core')\n    .provider('$mdInkRipple', InkRippleProvider)\n    .directive('mdInkRipple', InkRippleDirective)\n    .directive('mdNoInk', attrNoDirective)\n    .directive('mdNoBar', attrNoDirective)\n    .directive('mdNoStretch', attrNoDirective);\n\nvar DURATION = 450;\n\n/**\n * @ngdoc directive\n * @name mdInkRipple\n * @module material.core.ripple\n *\n * @description\n * The `md-ink-ripple` directive allows you to specify the ripple color or if a ripple is allowed.\n *\n * @param {string|boolean} md-ink-ripple A color string `#FF0000` or boolean (`false` or `0`) for\n *  preventing ripple\n *\n * @usage\n * ### String values\n * <hljs lang=\"html\">\n *   <ANY md-ink-ripple=\"#FF0000\">\n *     Ripples in red\n *   </ANY>\n *\n *   <ANY md-ink-ripple=\"false\">\n *     Not rippling\n *   </ANY>\n * </hljs>\n *\n * ### Interpolated values\n * <hljs lang=\"html\">\n *   <ANY md-ink-ripple=\"{{ randomColor() }}\">\n *     Ripples with the return value of 'randomColor' function\n *   </ANY>\n *\n *   <ANY md-ink-ripple=\"{{ canRipple() }}\">\n *     Ripples if 'canRipple' function return value is not 'false' or '0'\n *   </ANY>\n * </hljs>\n */\nfunction InkRippleDirective ($mdButtonInkRipple, $mdCheckboxInkRipple) {\n  return {\n    controller: angular.noop,\n    link:       function (scope, element, attr) {\n      attr.hasOwnProperty('mdInkRippleCheckbox')\n          ? $mdCheckboxInkRipple.attach(scope, element)\n          : $mdButtonInkRipple.attach(scope, element);\n    }\n  };\n}\n\n/**\n * @ngdoc service\n * @name $mdInkRipple\n * @module material.core.ripple\n *\n * @description\n * `$mdInkRipple` is a service for adding ripples to any element.\n *\n * @usage\n * <hljs lang=\"js\">\n * app.factory('$myElementInkRipple', function($mdInkRipple) {\n *   return {\n *     attach: function (scope, element, options) {\n *       return $mdInkRipple.attach(scope, element, angular.extend({\n *         center: false,\n *         dimBackground: true\n *       }, options));\n *     }\n *   };\n * });\n *\n * app.controller('myController', function ($scope, $element, $myElementInkRipple) {\n *   $scope.onClick = function (ev) {\n *     $myElementInkRipple.attach($scope, angular.element(ev.target), { center: true });\n *   }\n * });\n * </hljs>\n */\n\n/**\n * @ngdoc service\n * @name $mdInkRippleProvider\n * @module material.core.ripple\n *\n * @description\n  * If you want to disable ink ripples globally, for all components, you can call the\n * `disableInkRipple` method in your app's config.\n *\n *\n * @usage\n * <hljs lang=\"js\">\n * app.config(function ($mdInkRippleProvider) {\n *   $mdInkRippleProvider.disableInkRipple();\n * });\n * </hljs>\n */\n\nfunction InkRippleProvider () {\n  var isDisabledGlobally = false;\n\n  return {\n    disableInkRipple: disableInkRipple,\n    $get: [\"$injector\", function($injector) {\n      return { attach: attach };\n\n      /**\n       * @ngdoc method\n       * @name $mdInkRipple#attach\n       *\n       * @description\n       * Attaching given scope, element and options to inkRipple controller\n       *\n       * @param {object=} scope Scope within the current context\n       * @param {object=} element The element the ripple effect should be applied to\n       * @param {object=} options (Optional) Configuration options to override the defaultRipple configuration\n       * * `center` -  Whether the ripple should start from the center of the container element\n       * * `dimBackground` - Whether the background should be dimmed with the ripple color\n       * * `colorElement` - The element the ripple should take its color from, defined by css property `color`\n       * * `fitRipple` - Whether the ripple should fill the element\n       */\n      function attach (scope, element, options) {\n        if (isDisabledGlobally || element.controller('mdNoInk')) return angular.noop;\n        return $injector.instantiate(InkRippleCtrl, {\n          $scope:        scope,\n          $element:      element,\n          rippleOptions: options\n        });\n      }\n    }]\n  };\n\n  /**\n   * @ngdoc method\n   * @name $mdInkRippleProvider#disableInkRipple\n   *\n   * @description\n   * A config-time method that, when called, disables ripples globally.\n   */\n  function disableInkRipple () {\n    isDisabledGlobally = true;\n  }\n}\n\n/**\n * Controller used by the ripple service in order to apply ripples\n * @ngInject\n */\nfunction InkRippleCtrl ($scope, $element, rippleOptions, $window, $timeout, $mdUtil, $mdColorUtil) {\n  this.$window    = $window;\n  this.$timeout   = $timeout;\n  this.$mdUtil    = $mdUtil;\n  this.$mdColorUtil    = $mdColorUtil;\n  this.$scope     = $scope;\n  this.$element   = $element;\n  this.options    = rippleOptions;\n  this.mousedown  = false;\n  this.ripples    = [];\n  this.timeout    = null; // Stores a reference to the most-recent ripple timeout\n  this.lastRipple = null;\n\n  $mdUtil.valueOnUse(this, 'container', this.createContainer);\n\n  this.$element.addClass('md-ink-ripple');\n\n  // attach method for unit tests\n  ($element.controller('mdInkRipple') || {}).createRipple = angular.bind(this, this.createRipple);\n  ($element.controller('mdInkRipple') || {}).setColor = angular.bind(this, this.color);\n\n  this.bindEvents();\n}\n\n\n/**\n * Either remove or unlock any remaining ripples when the user mouses off of the element (either by\n * mouseup or mouseleave event)\n */\nfunction autoCleanup (self, cleanupFn) {\n  if (self.mousedown || self.lastRipple) {\n    self.mousedown = false;\n    self.$mdUtil.nextTick(angular.bind(self, cleanupFn), false);\n  }\n}\n\n\n/**\n * Returns the color that the ripple should be (either based on CSS or hard-coded)\n * @returns {string}\n */\nInkRippleCtrl.prototype.color = function (value) {\n  var self = this;\n\n  // If assigning a color value, apply it to background and the ripple color\n  if (angular.isDefined(value)) {\n    self._color = self._parseColor(value);\n  }\n\n  // If color lookup, use assigned, defined, or inherited\n  return self._color || self._parseColor(self.inkRipple()) || self._parseColor(getElementColor());\n\n  /**\n   * Finds the color element and returns its text color for use as default ripple color\n   * @returns {string}\n   */\n  function getElementColor () {\n    var items = self.options && self.options.colorElement ? self.options.colorElement : [];\n    var elem =  items.length ? items[ 0 ] : self.$element[ 0 ];\n\n    return elem ? self.$window.getComputedStyle(elem).color : 'rgb(0,0,0)';\n  }\n};\n\n/**\n * Updating the ripple colors based on the current inkRipple value\n * or the element's computed style color\n */\nInkRippleCtrl.prototype.calculateColor = function () {\n  return this.color();\n};\n\n\n/**\n * Takes a string color and converts it to RGBA format\n * @param {string} color\n * @param {number} multiplier\n * @returns {string}\n */\nInkRippleCtrl.prototype._parseColor = function parseColor (color, multiplier) {\n  multiplier = multiplier || 1;\n  var colorUtil = this.$mdColorUtil;\n\n  if (!color) return;\n  if (color.indexOf('rgba') === 0) return color.replace(/\\d?\\.?\\d*\\s*\\)\\s*$/, (0.1 * multiplier).toString() + ')');\n  if (color.indexOf('rgb') === 0) return colorUtil.rgbToRgba(color);\n  if (color.indexOf('#') === 0) return colorUtil.hexToRgba(color);\n\n};\n\n/**\n * Binds events to the root element for\n */\nInkRippleCtrl.prototype.bindEvents = function () {\n  this.$element.on('mousedown', angular.bind(this, this.handleMousedown));\n  this.$element.on('mouseup touchend', angular.bind(this, this.handleMouseup));\n  this.$element.on('mouseleave', angular.bind(this, this.handleMouseup));\n  this.$element.on('touchmove', angular.bind(this, this.handleTouchmove));\n};\n\n/**\n * Create a new ripple on every mousedown event from the root element\n * @param event {MouseEvent}\n */\nInkRippleCtrl.prototype.handleMousedown = function (event) {\n  if (this.mousedown) return;\n\n  // When jQuery is loaded, we have to get the original event\n  if (event.hasOwnProperty('originalEvent')) event = event.originalEvent;\n  this.mousedown = true;\n  if (this.options.center) {\n    this.createRipple(this.container.prop('clientWidth') / 2, this.container.prop('clientWidth') / 2);\n  } else {\n\n    // We need to calculate the relative coordinates if the target is a sublayer of the ripple element\n    if (event.srcElement !== this.$element[0]) {\n      var layerRect = this.$element[0].getBoundingClientRect();\n      var layerX = event.clientX - layerRect.left;\n      var layerY = event.clientY - layerRect.top;\n\n      this.createRipple(layerX, layerY);\n    } else {\n      this.createRipple(event.offsetX, event.offsetY);\n    }\n  }\n};\n\n/**\n * Either remove or unlock any remaining ripples when the user mouses off of the element (either by\n * mouseup, touchend or mouseleave event)\n */\nInkRippleCtrl.prototype.handleMouseup = function () {\n  this.$timeout(function () {\n    autoCleanup(this, this.clearRipples);\n  }.bind(this));\n};\n\n/**\n * Either remove or unlock any remaining ripples when the user mouses off of the element (by\n * touchmove)\n */\nInkRippleCtrl.prototype.handleTouchmove = function () {\n  autoCleanup(this, this.deleteRipples);\n};\n\n/**\n * Cycles through all ripples and attempts to remove them.\n */\nInkRippleCtrl.prototype.deleteRipples = function () {\n  for (var i = 0; i < this.ripples.length; i++) {\n    this.ripples[ i ].remove();\n  }\n};\n\n/**\n * Cycles through all ripples and attempts to remove them with fade.\n * Depending on logic within `fadeInComplete`, some removals will be postponed.\n */\nInkRippleCtrl.prototype.clearRipples = function () {\n  for (var i = 0; i < this.ripples.length; i++) {\n    this.fadeInComplete(this.ripples[ i ]);\n  }\n};\n\n/**\n * Creates the ripple container element\n * @returns {*}\n */\nInkRippleCtrl.prototype.createContainer = function () {\n  var container = angular.element('<div class=\"md-ripple-container\"></div>');\n  this.$element.append(container);\n  return container;\n};\n\nInkRippleCtrl.prototype.clearTimeout = function () {\n  if (this.timeout) {\n    this.$timeout.cancel(this.timeout);\n    this.timeout = null;\n  }\n};\n\nInkRippleCtrl.prototype.isRippleAllowed = function () {\n  var element = this.$element[0];\n  do {\n    if (!element.tagName || element.tagName === 'BODY') break;\n\n    if (element && angular.isFunction(element.hasAttribute)) {\n      if (element.hasAttribute('disabled')) return false;\n      if (this.inkRipple() === 'false' || this.inkRipple() === '0') return false;\n    }\n\n  } while (element = element.parentNode);\n  return true;\n};\n\n/**\n * The attribute `md-ink-ripple` may be a static or interpolated\n * color value OR a boolean indicator (used to disable ripples)\n */\nInkRippleCtrl.prototype.inkRipple = function () {\n  return this.$element.attr('md-ink-ripple');\n};\n\n/**\n * Creates a new ripple and adds it to the container.  Also tracks ripple in `this.ripples`.\n * @param left\n * @param top\n */\nInkRippleCtrl.prototype.createRipple = function (left, top) {\n  if (!this.isRippleAllowed()) return;\n\n  var ctrl        = this;\n  var colorUtil   = ctrl.$mdColorUtil;\n  var ripple      = angular.element('<div class=\"md-ripple\"></div>');\n  var width       = this.$element.prop('clientWidth');\n  var height      = this.$element.prop('clientHeight');\n  var x           = Math.max(Math.abs(width - left), left) * 2;\n  var y           = Math.max(Math.abs(height - top), top) * 2;\n  var size        = getSize(this.options.fitRipple, x, y);\n  var color       = this.calculateColor();\n\n  ripple.css({\n    left:            left + 'px',\n    top:             top + 'px',\n    background:      'black',\n    width:           size + 'px',\n    height:          size + 'px',\n    backgroundColor: colorUtil.rgbaToRgb(color),\n    borderColor:     colorUtil.rgbaToRgb(color)\n  });\n  this.lastRipple = ripple;\n\n  // we only want one timeout to be running at a time\n  this.clearTimeout();\n  this.timeout    = this.$timeout(function () {\n    ctrl.clearTimeout();\n    if (!ctrl.mousedown) ctrl.fadeInComplete(ripple);\n  }, DURATION * 0.35, false);\n\n  if (this.options.dimBackground) this.container.css({ backgroundColor: color });\n  this.container.append(ripple);\n  this.ripples.push(ripple);\n  ripple.addClass('md-ripple-placed');\n\n  this.$mdUtil.nextTick(function () {\n\n    ripple.addClass('md-ripple-scaled md-ripple-active');\n    ctrl.$timeout(function () {\n      ctrl.clearRipples();\n    }, DURATION, false);\n\n  }, false);\n\n  function getSize (fit, x, y) {\n    return fit\n        ? Math.max(x, y)\n        : Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));\n  }\n};\n\n\n\n/**\n * After fadeIn finishes, either kicks off the fade-out animation or queues the element for removal on mouseup\n * @param ripple\n */\nInkRippleCtrl.prototype.fadeInComplete = function (ripple) {\n  if (this.lastRipple === ripple) {\n    if (!this.timeout && !this.mousedown) {\n      this.removeRipple(ripple);\n    }\n  } else {\n    this.removeRipple(ripple);\n  }\n};\n\n/**\n * Kicks off the animation for removing a ripple\n * @param ripple {Element}\n */\nInkRippleCtrl.prototype.removeRipple = function (ripple) {\n  var ctrl  = this;\n  var index = this.ripples.indexOf(ripple);\n  if (index < 0) return;\n  this.ripples.splice(this.ripples.indexOf(ripple), 1);\n  ripple.removeClass('md-ripple-active');\n  ripple.addClass('md-ripple-remove');\n  if (this.ripples.length === 0) this.container.css({ backgroundColor: '' });\n  // use a 2-second timeout in order to allow for the animation to finish\n  // we don't actually care how long the animation takes\n  this.$timeout(function () {\n    ctrl.fadeOutComplete(ripple);\n  }, DURATION, false);\n};\n\n/**\n * Removes the provided ripple from the DOM\n * @param ripple\n */\nInkRippleCtrl.prototype.fadeOutComplete = function (ripple) {\n  ripple.remove();\n  this.lastRipple = null;\n};\n\n/**\n * Used to create an empty directive.  This is used to track flag-directives whose children may have\n * functionality based on them.\n *\n * Example: `md-no-ink` will potentially be used by all child directives.\n */\nfunction attrNoDirective () {\n  return { controller: angular.noop };\n}\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n    /**\n   * @ngdoc service\n   * @name $mdTabInkRipple\n   * @module material.core\n   *\n   * @description\n   * Provides ripple effects for md-tabs.  See $mdInkRipple service for all possible configuration options.\n   *\n   * @param {object=} scope Scope within the current context\n   * @param {object=} element The element the ripple effect should be applied to\n   * @param {object=} options (Optional) Configuration options to override the defaultripple configuration\n   */\n\n  MdTabInkRipple.$inject = [\"$mdInkRipple\"];\n  angular.module('material.core')\n    .factory('$mdTabInkRipple', MdTabInkRipple);\n\n  function MdTabInkRipple($mdInkRipple) {\n    return {\n      attach: attach\n    };\n\n    function attach(scope, element, options) {\n      return $mdInkRipple.attach(scope, element, angular.extend({\n        center: false,\n        dimBackground: true,\n        outline: false,\n        rippleSize: 'full'\n      }, options));\n    }\n  }\n})();\n\n})();\n(function(){\n\"use strict\";\n\nangular.module('material.core.theming.palette', [])\n.constant('$mdColorPalette', {\n  'red': {\n    '50': '#ffebee',\n    '100': '#ffcdd2',\n    '200': '#ef9a9a',\n    '300': '#e57373',\n    '400': '#ef5350',\n    '500': '#f44336',\n    '600': '#e53935',\n    '700': '#d32f2f',\n    '800': '#c62828',\n    '900': '#b71c1c',\n    'A100': '#ff8a80',\n    'A200': '#ff5252',\n    'A400': '#ff1744',\n    'A700': '#d50000',\n    'contrastDefaultColor': 'light',\n    'contrastDarkColors': '50 100 200 300 400 500 600 A100 A200 A400',\n    'contrastStrongLightColors': '700 800 900 A700'\n  },\n  'pink': {\n    '50': '#fce4ec',\n    '100': '#f8bbd0',\n    '200': '#f48fb1',\n    '300': '#f06292',\n    '400': '#ec407a',\n    '500': '#e91e63',\n    '600': '#d81b60',\n    '700': '#c2185b',\n    '800': '#ad1457',\n    '900': '#880e4f',\n    'A100': '#ff80ab',\n    'A200': '#ff4081',\n    'A400': '#f50057',\n    'A700': '#c51162',\n    'contrastDefaultColor': 'light',\n    'contrastDarkColors': '50 100 200 300 400 A100 A200 A400',\n    // White on 500 does not meet the minimum 4.5 contrast ratio (at 4.34),\n    // but it's worse with a dark foreground (3.61).\n    'contrastStrongLightColors': '500 600 700 800 900 A700'\n  },\n  'purple': {\n    '50': '#f3e5f5',\n    '100': '#e1bee7',\n    '200': '#ce93d8',\n    '300': '#ba68c8',\n    '400': '#ab47bc',\n    '500': '#9c27b0',\n    '600': '#8e24aa',\n    '700': '#7b1fa2',\n    '800': '#6a1b9a',\n    '900': '#4a148c',\n    'A100': '#ea80fc',\n    'A200': '#e040fb',\n    'A400': '#d500f9',\n    'A700': '#aa00ff',\n    'contrastDefaultColor': 'light',\n    'contrastDarkColors': '50 100 200 300 A100 A200 A400',\n    'contrastStrongLightColors': '400 500 600 700 800 900 A700'\n  },\n  'deep-purple': {\n    '50': '#ede7f6',\n    '100': '#d1c4e9',\n    '200': '#b39ddb',\n    '300': '#9575cd',\n    '400': '#7e57c2',\n    '500': '#673ab7',\n    '600': '#5e35b1',\n    '700': '#512da8',\n    '800': '#4527a0',\n    '900': '#311b92',\n    'A100': '#b388ff',\n    'A200': '#7c4dff',\n    'A400': '#651fff',\n    'A700': '#6200ea',\n    'contrastDefaultColor': 'light',\n    'contrastDarkColors': '50 100 200 300 A100',\n    'contrastStrongLightColors': '400 500 600 700 800 900 A200 A400 A700'\n  },\n  'indigo': {\n    '50': '#e8eaf6',\n    '100': '#c5cae9',\n    '200': '#9fa8da',\n    '300': '#7986cb',\n    '400': '#5c6bc0',\n    '500': '#3f51b5',\n    '600': '#3949ab',\n    '700': '#303f9f',\n    '800': '#283593',\n    '900': '#1a237e',\n    'A100': '#8c9eff',\n    'A200': '#536dfe',\n    'A400': '#3d5afe',\n    'A700': '#304ffe',\n    'contrastDefaultColor': 'light',\n    'contrastDarkColors': '50 100 200 300 A100 A200',\n    'contrastStrongLightColors': '400 500 600 700 800 900 A400 A700'\n  },\n  'blue': {\n    '50': '#e3f2fd',\n    '100': '#bbdefb',\n    '200': '#90caf9',\n    '300': '#64b5f6',\n    '400': '#42a5f5',\n    '500': '#2196f3',\n    '600': '#1e88e5',\n    '700': '#1976d2',\n    '800': '#1565c0',\n    '900': '#0d47a1',\n    'A100': '#82b1ff',\n    'A200': '#448aff',\n    'A400': '#2979ff',\n    'A700': '#2962ff',\n    'contrastDefaultColor': 'light',\n    // White on A400 does not meet the minimum 4.5 contrast ratio (at 3.98),\n    // but it's worse with a dark foreground (3.94).\n    'contrastDarkColors': '50 100 200 300 400 500 600 A100 A200',\n    'contrastStrongLightColors': '700 800 900 A400 A700'\n  },\n  'light-blue': {\n    '50': '#e1f5fe',\n    '100': '#b3e5fc',\n    '200': '#81d4fa',\n    '300': '#4fc3f7',\n    '400': '#29b6f6',\n    '500': '#03a9f4',\n    '600': '#039be5',\n    '700': '#0288d1',\n    '800': '#0277bd',\n    '900': '#01579b',\n    'A100': '#80d8ff',\n    'A200': '#40c4ff',\n    'A400': '#00b0ff',\n    'A700': '#0091ea',\n    'contrastDefaultColor': 'dark',\n    // Dark on 700 does not meet the minimum 4.5 contrast ratio (at 4.07),\n    // but it's worse with a white foreground (3.85).\n    'contrastStrongLightColors': '800 900 A700'\n  },\n  'cyan': {\n    '50': '#e0f7fa',\n    '100': '#b2ebf2',\n    '200': '#80deea',\n    '300': '#4dd0e1',\n    '400': '#26c6da',\n    '500': '#00bcd4',\n    '600': '#00acc1',\n    '700': '#0097a7',\n    '800': '#00838f',\n    '900': '#006064',\n    'A100': '#84ffff',\n    'A200': '#18ffff',\n    'A400': '#00e5ff',\n    'A700': '#00b8d4',\n    'contrastDefaultColor': 'dark',\n    // Dark on 700 does not meet the minimum 4.5 contrast ratio (at 4.47),\n    // but it's worse with a white foreground (3.5).\n    'contrastStrongLightColors': '800 900'\n  },\n  'teal': {\n    '50': '#e0f2f1',\n    '100': '#b2dfdb',\n    '200': '#80cbc4',\n    '300': '#4db6ac',\n    '400': '#26a69a',\n    '500': '#009688',\n    '600': '#00897b',\n    '700': '#00796b',\n    '800': '#00695c',\n    '900': '#004d40',\n    'A100': '#a7ffeb',\n    'A200': '#64ffda',\n    'A400': '#1de9b6',\n    'A700': '#00bfa5',\n    'contrastDefaultColor': 'dark',\n    // Dark on 500 does not meet the minimum 4.5 contrast ratio (at 4.27),\n    // but it's worse with a white foreground (3.67).\n    // White on 600 does not meet the minimum 4.5 contrast ratio (at 4.31),\n    // but it's worse with a dark foreground (3.64).\n    'contrastStrongLightColors': '600 700 800 900'\n  },\n  'green': {\n    '50': '#e8f5e9',\n    '100': '#c8e6c9',\n    '200': '#a5d6a7',\n    '300': '#81c784',\n    '400': '#66bb6a',\n    '500': '#4caf50',\n    '600': '#43a047',\n    '700': '#388e3c',\n    '800': '#2e7d32',\n    '900': '#1b5e20',\n    'A100': '#b9f6ca',\n    'A200': '#69f0ae',\n    'A400': '#00e676',\n    'A700': '#00c853',\n    'contrastDefaultColor': 'dark',\n    // White on 700 does not meet the minimum 4.5 contrast ratio (at 4.11),\n    // but it's worse with a dark foreground (3.81).\n    'contrastStrongLightColors': '700 800 900'\n  },\n  'light-green': {\n    '50': '#f1f8e9',\n    '100': '#dcedc8',\n    '200': '#c5e1a5',\n    '300': '#aed581',\n    '400': '#9ccc65',\n    '500': '#8bc34a',\n    '600': '#7cb342',\n    '700': '#689f38',\n    '800': '#558b2f',\n    '900': '#33691e',\n    'A100': '#ccff90',\n    'A200': '#b2ff59',\n    'A400': '#76ff03',\n    'A700': '#64dd17',\n    'contrastDefaultColor': 'dark',\n    'contrastStrongLightColors': '800 900'\n  },\n  'lime': {\n    '50': '#f9fbe7',\n    '100': '#f0f4c3',\n    '200': '#e6ee9c',\n    '300': '#dce775',\n    '400': '#d4e157',\n    '500': '#cddc39',\n    '600': '#c0ca33',\n    '700': '#afb42b',\n    '800': '#9e9d24',\n    '900': '#827717',\n    'A100': '#f4ff81',\n    'A200': '#eeff41',\n    'A400': '#c6ff00',\n    'A700': '#aeea00',\n    'contrastDefaultColor': 'dark',\n    'contrastStrongLightColors': '900'\n  },\n  'yellow': {\n    '50': '#fffde7',\n    '100': '#fff9c4',\n    '200': '#fff59d',\n    '300': '#fff176',\n    '400': '#ffee58',\n    '500': '#ffeb3b',\n    '600': '#fdd835',\n    '700': '#fbc02d',\n    '800': '#f9a825',\n    '900': '#f57f17',\n    'A100': '#ffff8d',\n    'A200': '#ffff00',\n    'A400': '#ffea00',\n    'A700': '#ffd600',\n    'contrastDefaultColor': 'dark'\n  },\n  'amber': {\n    '50': '#fff8e1',\n    '100': '#ffecb3',\n    '200': '#ffe082',\n    '300': '#ffd54f',\n    '400': '#ffca28',\n    '500': '#ffc107',\n    '600': '#ffb300',\n    '700': '#ffa000',\n    '800': '#ff8f00',\n    '900': '#ff6f00',\n    'A100': '#ffe57f',\n    'A200': '#ffd740',\n    'A400': '#ffc400',\n    'A700': '#ffab00',\n    'contrastDefaultColor': 'dark'\n  },\n  'orange': {\n    '50': '#fff3e0',\n    '100': '#ffe0b2',\n    '200': '#ffcc80',\n    '300': '#ffb74d',\n    '400': '#ffa726',\n    '500': '#ff9800',\n    '600': '#fb8c00',\n    '700': '#f57c00',\n    '800': '#ef6c00',\n    '900': '#e65100',\n    'A100': '#ffd180',\n    'A200': '#ffab40',\n    'A400': '#ff9100',\n    'A700': '#ff6d00',\n    'contrastDefaultColor': 'dark',\n    'contrastStrongLightColors': '900'\n  },\n  'deep-orange': {\n    '50': '#fbe9e7',\n    '100': '#ffccbc',\n    '200': '#ffab91',\n    '300': '#ff8a65',\n    '400': '#ff7043',\n    '500': '#ff5722',\n    '600': '#f4511e',\n    '700': '#e64a19',\n    '800': '#d84315',\n    '900': '#bf360c',\n    'A100': '#ff9e80',\n    'A200': '#ff6e40',\n    'A400': '#ff3d00',\n    'A700': '#dd2c00',\n    'contrastDefaultColor': 'dark',\n    // Dark on 700 does not meet the minimum 4.5 contrast ratio (at 4.01),\n    // but it's worse with a white foreground (3.91).\n    // White on 800 does not meet the minimum 4.5 contrast ratio (at 4.43),\n    // but it's worse with a dark foreground (3.54).\n    'contrastStrongLightColors': '800 900 A400 A700',\n  },\n  'brown': {\n    '50': '#efebe9',\n    '100': '#d7ccc8',\n    '200': '#bcaaa4',\n    '300': '#a1887f',\n    '400': '#8d6e63',\n    '500': '#795548',\n    '600': '#6d4c41',\n    '700': '#5d4037',\n    '800': '#4e342e',\n    '900': '#3e2723',\n    'A100': '#d7ccc8',\n    'A200': '#bcaaa4',\n    'A400': '#8d6e63',\n    'A700': '#5d4037',\n    'contrastDefaultColor': 'light',\n    'contrastDarkColors': '50 100 200 300 A100 A200',\n    'contrastStrongLightColors': '400 500 600 700 800 900 A400 A700'\n  },\n  'grey': {\n    '50': '#fafafa',\n    '100': '#f5f5f5',\n    '200': '#eeeeee',\n    '300': '#e0e0e0',\n    '400': '#bdbdbd',\n    '500': '#9e9e9e',\n    '600': '#757575',\n    '700': '#616161',\n    '800': '#424242',\n    '900': '#212121',\n    'A100': '#ffffff',\n    'A200': '#000000',\n    'A400': '#303030',\n    'A700': '#616161',\n    'contrastDefaultColor': 'dark',\n    'contrastLightColors': '700 800 900 A200 A400 A700',\n    'contrastStrongLightColors': '600'\n  },\n  'blue-grey': {\n    '50': '#eceff1',\n    '100': '#cfd8dc',\n    '200': '#b0bec5',\n    '300': '#90a4ae',\n    '400': '#78909c',\n    '500': '#607d8b',\n    '600': '#546e7a',\n    '700': '#455a64',\n    '800': '#37474f',\n    '900': '#263238',\n    'A100': '#cfd8dc',\n    'A200': '#b0bec5',\n    'A400': '#78909c',\n    'A700': '#455a64',\n    'contrastDefaultColor': 'light',\n    'contrastDarkColors': '50 100 200 300 400 A100 A200 A400',\n    // White on 500 does not meet the minimum 4.5 contrast ratio (at 4.37),\n    // but it's worse with a dark foreground.\n    'contrastStrongLightColors': '500 600 700 800 900 A700'\n  }\n});\n\n})();\n(function(){\n\"use strict\";\n\n(function(angular) {\n  'use strict';\n/**\n * @ngdoc module\n * @name material.core.theming\n * @description\n * Theming\n */\ndetectDisabledThemes.$inject = [\"$mdThemingProvider\"];\nThemingDirective.$inject = [\"$mdTheming\", \"$interpolate\", \"$parse\", \"$mdUtil\", \"$q\", \"$log\"];\nThemableDirective.$inject = [\"$mdTheming\"];\nThemingProvider.$inject = [\"$mdColorPalette\", \"$$mdMetaProvider\"];\ngenerateAllThemes.$inject = [\"$injector\", \"$mdTheming\"];\nangular.module('material.core.theming', ['material.core.theming.palette', 'material.core.meta'])\n  .directive('mdTheme', ThemingDirective)\n  .directive('mdThemable', ThemableDirective)\n  .directive('mdThemesDisabled', disableThemesDirective)\n  .provider('$mdTheming', ThemingProvider)\n  .config(detectDisabledThemes)\n  .run(generateAllThemes);\n\n/**\n * Detect if the HTML or the BODY tags has a [md-themes-disabled] attribute\n * If yes, then immediately disable all theme stylesheet generation and DOM injection\n */\n/**\n * @ngInject\n */\nfunction detectDisabledThemes($mdThemingProvider) {\n  var isDisabled = !!document.querySelector('[md-themes-disabled]');\n  $mdThemingProvider.disableTheming(isDisabled);\n}\n\n/**\n * @ngdoc service\n * @name $mdThemingProvider\n * @module material.core.theming\n *\n * @description Provider to configure the `$mdTheming` service.\n *\n * ### Default Theme\n * The `$mdThemingProvider` uses by default the following theme configuration:\n *\n * - Primary Palette: `Blue`\n * - Accent Palette: `Pink`\n * - Warn Palette: `Deep-Orange`\n * - Background Palette: `Grey`\n *\n * If you don't want to use the `md-theme` directive on the elements itself, you may want to overwrite\n * the default theme.<br/>\n * This can be done by using the following markup.\n *\n * <hljs lang=\"js\">\n *   myAppModule.config(function($mdThemingProvider) {\n *     $mdThemingProvider\n *       .theme('default')\n *       .primaryPalette('blue')\n *       .accentPalette('teal')\n *       .warnPalette('red')\n *       .backgroundPalette('grey');\n *   });\n * </hljs>\n *\n\n * ### Dynamic Themes\n *\n * By default, if you change a theme at runtime, the `$mdTheming` service will not detect those changes.<br/>\n * If you have an application, which changes its theme on runtime, you have to enable theme watching.\n *\n * <hljs lang=\"js\">\n *   myAppModule.config(function($mdThemingProvider) {\n *     // Enable theme watching.\n *     $mdThemingProvider.alwaysWatchTheme(true);\n *   });\n * </hljs>\n *\n * ### Custom Theme Styles\n *\n * Sometimes you may want to use your own theme styles for some custom components.<br/>\n * You are able to register your own styles by using the following markup.\n *\n * <hljs lang=\"js\">\n *   myAppModule.config(function($mdThemingProvider) {\n *     // Register our custom stylesheet into the theming provider.\n *     $mdThemingProvider.registerStyles(STYLESHEET);\n *   });\n * </hljs>\n *\n * The `registerStyles` method only accepts strings as value, so you're actually not able to load an external\n * stylesheet file into the `$mdThemingProvider`.\n *\n * If it's necessary to load an external stylesheet, we suggest using a bundler, which supports including raw content,\n * like [raw-loader](https://github.com/webpack/raw-loader) for `webpack`.\n *\n * <hljs lang=\"js\">\n *   myAppModule.config(function($mdThemingProvider) {\n *     // Register your custom stylesheet into the theming provider.\n *     $mdThemingProvider.registerStyles(require('../styles/my-component.theme.css'));\n *   });\n * </hljs>\n *\n * ### Browser color\n *\n * Enables browser header coloring\n * for more info please visit:\n * https://developers.google.com/web/fundamentals/design-and-ui/browser-customization/theme-color\n *\n * Options parameter: <br/>\n * `theme`   - A defined theme via `$mdThemeProvider` to use the palettes from. Default is `default` theme. <br/>\n * `palette` - Can be any one of the basic material design palettes, extended defined palettes and 'primary',\n *             'accent', 'background' and 'warn'. Default is `primary`. <br/>\n * `hue`     - The hue from the selected palette. Default is `800`<br/>\n *\n * <hljs lang=\"js\">\n *   myAppModule.config(function($mdThemingProvider) {\n *     // Enable browser color\n *     $mdThemingProvider.enableBrowserColor({\n *       theme: 'myTheme', // Default is 'default'\n *       palette: 'accent', // Default is 'primary', any basic material palette and extended palettes are available\n *       hue: '200' // Default is '800'\n *     });\n *   });\n * </hljs>\n */\n\n/**\n * Some Example Valid Theming Expressions\n * =======================================\n *\n * Intention group expansion: (valid for primary, accent, warn, background)\n *\n * {{primary-100}} - grab shade 100 from the primary palette\n * {{primary-100-0.7}} - grab shade 100, apply opacity of 0.7\n * {{primary-100-contrast}} - grab shade 100's contrast color\n * {{primary-hue-1}} - grab the shade assigned to hue-1 from the primary palette\n * {{primary-hue-1-0.7}} - apply 0.7 opacity to primary-hue-1\n * {{primary-color}} - Generates .md-hue-1, .md-hue-2, .md-hue-3 with configured shades set for each hue\n * {{primary-color-0.7}} - Apply 0.7 opacity to each of the above rules\n * {{primary-contrast}} - Generates .md-hue-1, .md-hue-2, .md-hue-3 with configured contrast (ie. text) color shades set for each hue\n * {{primary-contrast-0.7}} - Apply 0.7 opacity to each of the above rules\n * {{primary-contrast-divider}} - Apply divider opacity to contrast color\n *\n * Foreground expansion: Applies rgba to black/white foreground text\n *\n * Old Foreground Expressions:\n * {{foreground-1}} - used for primary text\n * {{foreground-2}} - used for secondary text/divider\n * {{foreground-3}} - used for disabled text\n * {{foreground-4}} - used for dividers\n *\n * New Foreground Expressions:\n *\n * Apply primary text color for contrasting with default background\n *  {{background-default-contrast}} - default opacity\n *  {{background-default-contrast-secondary}} - opacity for secondary text\n *  {{background-default-contrast-hint}} - opacity for hints and placeholders\n *  {{background-default-contrast-disabled}} - opacity for disabled text\n *  {{background-default-contrast-divider}} - opacity for dividers\n *\n * Apply contrast color for specific shades\n *  {{background-50-contrast-icon}} - Apply contrast color for icon on background's shade 50 hue\n */\n\n// In memory generated CSS rules; registered by theme.name\nvar GENERATED = { };\n\n// In memory storage of defined themes and color palettes (both loaded by CSS, and user specified)\nvar PALETTES;\n\n// Text colors are automatically generated based on background color when not specified\n// Custom palettes can provide override colors\n// @see https://material.io/archive/guidelines/style/color.html#color-usability\nvar DARK_FOREGROUND = {\n  name: 'dark',\n};\nvar LIGHT_FOREGROUND = {\n  name: 'light',\n};\n\nvar DARK_SHADOW = '1px 1px 0px rgba(0,0,0,0.4), -1px -1px 0px rgba(0,0,0,0.4)';\nvar LIGHT_SHADOW = '';\n\nvar DARK_CONTRAST_COLOR = colorToRgbaArray('rgba(0,0,0,0.87)');\nvar LIGHT_CONTRAST_COLOR = colorToRgbaArray('rgba(255,255,255,0.87)');\nvar STRONG_LIGHT_CONTRAST_COLOR = colorToRgbaArray('rgb(255,255,255)');\n\nvar THEME_COLOR_TYPES = ['primary', 'accent', 'warn', 'background'];\nvar DEFAULT_COLOR_TYPE = 'primary';\n\n// A color in a theme will use these hues by default, if not specified by user.\nvar LIGHT_DEFAULT_HUES = {\n  'accent': {\n    'default': 'A200',\n    'hue-1': 'A100',\n    'hue-2': 'A400',\n    'hue-3': 'A700'\n  },\n  'background': {\n    'default': '50',\n    'hue-1': 'A100',\n    'hue-2': '100',\n    'hue-3': '300'\n  }\n};\n\nvar DARK_DEFAULT_HUES = {\n  'background': {\n    'default': 'A400',\n    'hue-1': '800',\n    'hue-2': '900',\n    'hue-3': 'A200'\n  }\n};\n\n// Icon opacity values (active/inactive) from\n// https://material.io/archive/guidelines/style/color.html#color-usability\nvar DARK_CONTRAST_OPACITY = {\n  'icon': 0.54,\n  'secondary': 0.54,\n  'disabled': 0.38,\n  'hint': 0.38,\n  'divider': 0.12,\n};\n\nvar LIGHT_CONTRAST_OPACITY = {\n  'icon': 0.87,\n  'secondary': 0.7,\n  'disabled': 0.5,\n  'hint': 0.5,\n  'divider': 0.12\n};\n\n// Icon opacity values (active/inactive) from\n// https://material.io/archive/guidelines/style/color.html#color-usability\nvar STRONG_LIGHT_CONTRAST_OPACITY = {\n  'icon': 1.0,\n  'secondary': 0.7,\n  'disabled': 0.5,\n  'hint': 0.5,\n  'divider': 0.12\n};\n\nTHEME_COLOR_TYPES.forEach(function(colorType) {\n  // Color types with unspecified default hues will use these default hue values\n  var defaultDefaultHues = {\n    'default': '500',\n    'hue-1': '300',\n    'hue-2': '800',\n    'hue-3': 'A100'\n  };\n  if (!LIGHT_DEFAULT_HUES[colorType]) LIGHT_DEFAULT_HUES[colorType] = defaultDefaultHues;\n  if (!DARK_DEFAULT_HUES[colorType]) DARK_DEFAULT_HUES[colorType] = defaultDefaultHues;\n});\n\nvar VALID_HUE_VALUES = [\n  '50', '100', '200', '300', '400', '500', '600',\n  '700', '800', '900', 'A100', 'A200', 'A400', 'A700'\n];\n\nvar themeConfig = {\n  disableTheming : false,   // Generate our themes at run time; also disable stylesheet DOM injection\n  generateOnDemand : false, // Whether or not themes are to be generated on-demand (vs. eagerly).\n  registeredStyles : [],    // Custom styles registered to be used in the theming of custom components.\n  nonce : null              // Nonce to be added as an attribute to the generated themes style tags.\n};\n\n/**\n *\n */\nfunction ThemingProvider($mdColorPalette, $$mdMetaProvider) {\n  ThemingService.$inject = [\"$rootScope\", \"$mdUtil\", \"$q\", \"$log\"];\n  PALETTES = { };\n  var THEMES = { };\n\n  var themingProvider;\n\n  var alwaysWatchTheme = false;\n  var defaultTheme = 'default';\n\n  // Load JS Defined Palettes\n  angular.extend(PALETTES, $mdColorPalette);\n\n  // Default theme defined in core.js\n\n  /**\n   * Adds `theme-color` and `msapplication-navbutton-color` meta tags with the color parameter\n   * @param {string} color Hex value of the wanted browser color\n   * @returns {function} Remove function of the meta tags\n   */\n  var setBrowserColor = function (color) {\n    // Chrome, Firefox OS and Opera\n    var removeChrome = $$mdMetaProvider.setMeta('theme-color', color);\n    // Windows Phone\n    var removeWindows = $$mdMetaProvider.setMeta('msapplication-navbutton-color', color);\n\n    return function () {\n      removeChrome();\n      removeWindows();\n    };\n  };\n\n  /**\n   * @ngdoc method\n   * @name $mdThemingProvider#enableBrowserColor\n   * @description\n   * Enables browser header coloring. For more info please visit\n   * <a href=\"https://developers.google.com/web/fundamentals/design-and-ui/browser-customization/theme-color\">\n   *   Web Fundamentals</a>.\n   * @param {object=} options Options for the browser color, which include:<br/>\n   * - `theme` - `{string}`: A defined theme via `$mdThemeProvider` to use the palettes from. Default is `default` theme. <br/>\n   * - `palette` - `{string}`:  Can be any one of the basic material design palettes, extended defined palettes, or `primary`,\n   *  `accent`, `background`, and `warn`. Default is `primary`.<br/>\n   * - `hue` -  `{string}`: The hue from the selected palette. Default is `800`.<br/>\n   * @returns {function} Function that removes the browser coloring when called.\n   */\n  var enableBrowserColor = function (options) {\n    options = angular.isObject(options) ? options : {};\n\n    var theme = options.theme || 'default';\n    var hue = options.hue || '800';\n\n    var palette = PALETTES[options.palette] ||\n      PALETTES[THEMES[theme].colors[options.palette || 'primary'].name];\n\n    var color = angular.isObject(palette[hue]) ? palette[hue].hex : palette[hue];\n    if (color.substr(0, 1) !== '#') color = '#' + color;\n\n    return setBrowserColor(color);\n  };\n\n  return themingProvider = {\n    definePalette: definePalette,\n    extendPalette: extendPalette,\n    theme: registerTheme,\n\n    /**\n     * return a read-only clone of the current theme configuration\n     */\n    configuration : function() {\n      return angular.extend({ }, themeConfig, {\n        defaultTheme : defaultTheme,\n        alwaysWatchTheme : alwaysWatchTheme,\n        registeredStyles : [].concat(themeConfig.registeredStyles)\n      });\n    },\n\n    /**\n     * @ngdoc method\n     * @name $mdThemingProvider#disableTheming\n     * @description\n     * An easier way to disable theming without having to use `.constant(\"$MD_THEME_CSS\",\"\");`.\n     * This disables all dynamic theme style sheet generations and injections.\n     * @param {boolean=} isDisabled Disable all dynamic theme style sheet generations and injections\n     *  if `true` or `undefined`.\n     */\n    disableTheming: function(isDisabled) {\n      themeConfig.disableTheming = angular.isUndefined(isDisabled) || !!isDisabled;\n    },\n\n    /**\n     * @ngdoc method\n     * @name $mdThemingProvider#registerStyles\n     * @param {string} styles The styles to be appended to AngularJS Material's built in theme CSS.\n     */\n    registerStyles: function(styles) {\n      themeConfig.registeredStyles.push(styles);\n    },\n\n    /**\n     * @ngdoc method\n     * @name $mdThemingProvider#setNonce\n     * @param {string} nonceValue The nonce to be added as an attribute to the theme style tags.\n     * Setting a value allows the use of CSP policy without using the `'unsafe-inline'` directive.\n     * The string must already be base64 encoded. You can use `btoa(string)` to do this encoding.\n     * In your CSP's `style-src`, you would then add an entry for `'nonce-nonceValue'`.\n     */\n    setNonce: function(nonceValue) {\n      themeConfig.nonce = nonceValue;\n    },\n\n    generateThemesOnDemand: function(onDemand) {\n      themeConfig.generateOnDemand = onDemand;\n    },\n\n    /**\n     * @ngdoc method\n     * @name $mdThemingProvider#setDefaultTheme\n     * @param {string} theme Default theme name to be applied to elements.\n     *  Default value is `default`.\n     */\n    setDefaultTheme: function(theme) {\n      defaultTheme = theme;\n    },\n\n    /**\n     * @ngdoc method\n     * @name $mdThemingProvider#alwaysWatchTheme\n     * @param {boolean} alwaysWatch Whether or not to always watch themes for changes and re-apply\n     * classes when they change. Default is `false`. Enabling can reduce performance.\n     */\n    alwaysWatchTheme: function(alwaysWatch) {\n      alwaysWatchTheme = alwaysWatch;\n    },\n\n    enableBrowserColor: enableBrowserColor,\n\n    $get: ThemingService,\n    _LIGHT_DEFAULT_HUES: LIGHT_DEFAULT_HUES,\n    _DARK_DEFAULT_HUES: DARK_DEFAULT_HUES,\n    _PALETTES: PALETTES,\n    _THEMES: THEMES,\n    _parseRules: parseRules,\n    _rgba: rgba\n  };\n\n  /**\n   * @ngdoc method\n   * @name $mdThemingProvider#definePalette\n   * @description\n   * In the event that you need to define a custom color palette, you can use this function to\n   * make it available to your theme for use in its intention groups.<br>\n   * Note that you must specify all hues in the definition map.\n   * @param {string} name Name of palette being defined\n   * @param {object} map Palette definition that includes hue definitions and contrast colors:\n   * - `'50'` - `{string}`: HEX color\n   * - `'100'` - `{string}`: HEX color\n   * - `'200'` - `{string}`: HEX color\n   * - `'300'` - `{string}`: HEX color\n   * - `'400'` - `{string}`: HEX color\n   * - `'500'` - `{string}`: HEX color\n   * - `'600'` - `{string}`: HEX color\n   * - `'700'` - `{string}`: HEX color\n   * - `'800'` - `{string}`: HEX color\n   * - `'900'` - `{string}`: HEX color\n   * - `'A100'` - `{string}`: HEX color\n   * - `'A200'` - `{string}`: HEX color\n   * - `'A400'` - `{string}`: HEX color\n   * - `'A700'` - `{string}`: HEX color\n   * - `'contrastDefaultColor'` - `{string}`: `light` or `dark`\n   * - `'contrastDarkColors'` - `{string[]}`: Hues which should use dark contrast colors (i.e. raised button text).\n   *  For example: `['50', '100', '200', '300', '400', 'A100']`.\n   * - `'contrastLightColors'` - `{string[]}`: Hues which should use light contrast colors (i.e. raised button text).\n   *  For example: `['500', '600', '700', '800', '900', 'A200', 'A400', 'A700']`.\n   */\n  function definePalette(name, map) {\n    map = map || {};\n    PALETTES[name] = checkPaletteValid(name, map);\n    return themingProvider;\n  }\n\n  /**\n   * @ngdoc method\n   * @name $mdThemingProvider#extendPalette\n   * @description\n   * Sometimes it is easier to extend an existing color palette and then change a few properties,\n   * rather than defining a whole new palette.\n   * @param {string} name Name of palette being extended\n   * @param {object} map Palette definition that includes optional hue definitions and contrast colors:\n   * - `'50'` - `{string}`: HEX color\n   * - `'100'` - `{string}`: HEX color\n   * - `'200'` - `{string}`: HEX color\n   * - `'300'` - `{string}`: HEX color\n   * - `'400'` - `{string}`: HEX color\n   * - `'500'` - `{string}`: HEX color\n   * - `'600'` - `{string}`: HEX color\n   * - `'700'` - `{string}`: HEX color\n   * - `'800'` - `{string}`: HEX color\n   * - `'900'` - `{string}`: HEX color\n   * - `'A100'` - `{string}`: HEX color\n   * - `'A200'` - `{string}`: HEX color\n   * - `'A400'` - `{string}`: HEX color\n   * - `'A700'` - `{string}`: HEX color\n   * - `'contrastDefaultColor'` - `{string}`: `light` or `dark`\n   * - `'contrastDarkColors'` - `{string[]}`: Hues which should use dark contrast colors (i.e. raised button text).\n   *  For example: `['50', '100', '200', '300', '400', 'A100']`.\n   * - `'contrastLightColors'` - `{string[]}`: Hues which should use light contrast colors (i.e. raised button text).\n   *  For example: `['500', '600', '700', '800', '900', 'A200', 'A400', 'A700']`.\n   *  @returns {object} A new object which is a copy of the given palette, `name`,\n   *    with variables from `map` overwritten.\n   */\n  function extendPalette(name, map) {\n    return checkPaletteValid(name,  angular.extend({}, PALETTES[name] || {}, map));\n  }\n\n  // Make sure that palette has all required hues\n  function checkPaletteValid(name, map) {\n    var missingColors = VALID_HUE_VALUES.filter(function(field) {\n      return !map[field];\n    });\n    if (missingColors.length) {\n      throw new Error(\"Missing colors %1 in palette %2!\"\n                      .replace('%1', missingColors.join(', '))\n                      .replace('%2', name));\n    }\n\n    return map;\n  }\n\n  /**\n   * @ngdoc method\n   * @name $mdThemingProvider#theme\n   * @description\n   * Register a theme (which is a collection of color palettes); i.e. `warn`, `accent`,\n   * `background`, and `primary`.<br>\n   * Optionally inherit from an existing theme.\n   * @param {string} name Name of theme being registered\n   * @param {string=} inheritFrom Existing theme name to inherit from\n   */\n  function registerTheme(name, inheritFrom) {\n    if (THEMES[name]) return THEMES[name];\n\n    inheritFrom = inheritFrom || 'default';\n\n    var parentTheme = typeof inheritFrom === 'string' ? THEMES[inheritFrom] : inheritFrom;\n    var theme = new Theme(name);\n\n    if (parentTheme) {\n      angular.forEach(parentTheme.colors, function(color, colorType) {\n        theme.colors[colorType] = {\n          name: color.name,\n          // Make sure a COPY of the hues is given to the child color,\n          // not the same reference.\n          hues: angular.extend({}, color.hues)\n        };\n      });\n    }\n    THEMES[name] = theme;\n\n    return theme;\n  }\n\n  function Theme(name) {\n    var self = this;\n    self.name = name;\n    self.colors = {};\n\n    self.dark = setDark;\n    setDark(false);\n\n    function setDark(isDark) {\n      isDark = arguments.length === 0 ? true : !!isDark;\n\n      // If no change, abort\n      if (isDark === self.isDark) return;\n\n      self.isDark = isDark;\n\n      self.foregroundPalette = self.isDark ? LIGHT_FOREGROUND : DARK_FOREGROUND;\n      self.foregroundShadow = self.isDark ? DARK_SHADOW : LIGHT_SHADOW;\n\n      // Light and dark themes have different default hues.\n      // Go through each existing color type for this theme, and for every\n      // hue value that is still the default hue value from the previous light/dark setting,\n      // set it to the default hue value from the new light/dark setting.\n      var newDefaultHues = self.isDark ? DARK_DEFAULT_HUES : LIGHT_DEFAULT_HUES;\n      var oldDefaultHues = self.isDark ? LIGHT_DEFAULT_HUES : DARK_DEFAULT_HUES;\n      angular.forEach(newDefaultHues, function(newDefaults, colorType) {\n        var color = self.colors[colorType];\n        var oldDefaults = oldDefaultHues[colorType];\n        if (color) {\n          for (var hueName in color.hues) {\n            if (color.hues[hueName] === oldDefaults[hueName]) {\n              color.hues[hueName] = newDefaults[hueName];\n            }\n          }\n        }\n      });\n\n      return self;\n    }\n\n    THEME_COLOR_TYPES.forEach(function(colorType) {\n      var defaultHues = (self.isDark ? DARK_DEFAULT_HUES : LIGHT_DEFAULT_HUES)[colorType];\n      self[colorType + 'Palette'] = function setPaletteType(paletteName, hues) {\n        var color = self.colors[colorType] = {\n          name: paletteName,\n          hues: angular.extend({}, defaultHues, hues)\n        };\n\n        Object.keys(color.hues).forEach(function(name) {\n          if (!defaultHues[name]) {\n            throw new Error(\"Invalid hue name '%1' in theme %2's %3 color %4. Available hue names: %4\"\n              .replace('%1', name)\n              .replace('%2', self.name)\n              .replace('%3', paletteName)\n              .replace('%4', Object.keys(defaultHues).join(', '))\n            );\n          }\n        });\n        Object.keys(color.hues).map(function(key) {\n          return color.hues[key];\n        }).forEach(function(hueValue) {\n          if (VALID_HUE_VALUES.indexOf(hueValue) === -1) {\n            throw new Error(\"Invalid hue value '%1' in theme %2's %3 color %4. Available hue values: %5\"\n              .replace('%1', hueValue)\n              .replace('%2', self.name)\n              .replace('%3', colorType)\n              .replace('%4', paletteName)\n              .replace('%5', VALID_HUE_VALUES.join(', '))\n            );\n          }\n        });\n        return self;\n      };\n    });\n  }\n\n  /**\n   * @ngdoc service\n   * @name $mdTheming\n   * @module material.core.theming\n   * @description\n   * Service that makes an element apply theming related <b>classes</b> to itself.\n   *\n   * For more information on the hue objects, their default values, as well as valid hue values, please visit <a ng-href=\"Theming/03_configuring_a_theme#specifying-custom-hues-for-color-intentions\">the custom hues section of Configuring a Theme</a>.\n   *\n   * <hljs lang=\"js\">\n   * // Example component directive that we want to apply theming classes to.\n   * app.directive('myFancyDirective', function($mdTheming) {\n   *   return {\n   *     restrict: 'AE',\n   *     link: function(scope, element, attrs) {\n   *       // Initialize the service using our directive's element\n   *       $mdTheming(element);\n   *\n   *       $mdTheming.defineTheme('myTheme', {\n   *         primary: 'blue',\n   *         primaryHues: {\n   *           default: '500',\n   *           hue-1: '300',\n   *           hue-2: '900',\n   *           hue-3: 'A100'\n   *         },\n   *         accent: 'pink',\n   *         accentHues: {\n   *           default: '600',\n   *           hue-1: '300',\n   *           hue-2: '200',\n   *           hue-3: 'A500'\n   *         },\n   *         warn: 'red',\n   *         // It's not necessary to specify all hues in the object.\n   *         warnHues: {\n   *           default: '200',\n   *           hue-3: 'A100'\n   *         },\n   *         // It's not necessary to specify custom hues at all.\n   *         background: 'grey',\n   *         dark: true\n   *       });\n   *       // Your directive's custom code here.\n   *     }\n   *   };\n   * });\n   * </hljs>\n   * @param {element=} element Element that will have theming classes applied to it.\n   */\n\n  /**\n   * @ngdoc property\n   * @name $mdTheming#THEMES\n   * @description\n   * Property to get all the themes defined\n   * @returns {object} All the themes defined with their properties.\n   */\n\n  /**\n   * @ngdoc property\n   * @name $mdTheming#PALETTES\n   * @description\n   * Property to get all the palettes defined\n   * @returns {object} All the palettes defined with their colors.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $mdTheming#registered\n   * @description\n   * Determine is specified theme name is a valid, registered theme\n   * @param {string} themeName the theme to check if registered\n   * @returns {boolean} whether the theme is registered or not\n   */\n\n  /**\n   * @ngdoc method\n   * @name $mdTheming#defaultTheme\n   * @description\n   * Returns the default theme\n   * @returns {string} The default theme\n   */\n\n  /**\n   * @ngdoc method\n   * @name $mdTheming#generateTheme\n   * @description\n   * Lazy generate themes - by default, every theme is generated when defined.\n   * You can disable this in the configuration section using the\n   * `$mdThemingProvider.generateThemesOnDemand(true);`\n   *\n   * The theme name that is passed in must match the name of the theme that was defined as part of\n   * the configuration block.\n   *\n   * @param {string} name theme name to generate\n   */\n\n  /**\n   * @ngdoc method\n   * @name $mdTheming#setBrowserColor\n   * @description\n   * Enables browser header coloring. For more info please visit\n   * <a href=\"https://developers.google.com/web/fundamentals/design-and-ui/browser-customization/theme-color\">\n   *   Web Fundamentals</a>.\n   * @param {object=} options Options for the browser color, which include:<br/>\n   * - `theme` - `{string}`: A defined theme via `$mdThemeProvider` to use the palettes from.\n   *    Default is `default` theme. <br/>\n   * - `palette` - `{string}`:  Can be any one of the basic material design palettes, extended\n   *    defined palettes, or `primary`, `accent`, `background`, and `warn`. Default is `primary`.\n   * <br/>\n   * - `hue` -  `{string}`: The hue from the selected palette. Default is `800`.<br/>\n   * @returns {function} Function that removes the browser coloring when called.\n   */\n\n  /**\n   * @ngdoc method\n   * @name $mdTheming#defineTheme\n   * @description\n   * Dynamically define a theme by using an options object that contains palette names.\n   *\n   * @param {string} name Theme name to define\n   * @param {object} options Theme definition options\n   *\n   * Options are:<br/>\n   * - `primary` - `{string}`: The name of the primary palette to use in the theme.<br/>\n   * - `primaryHues` - `{object=}`: Override hues for primary palette.<br/>\n   * - `accent` - `{string}`: The name of the accent palette to use in the theme.<br/>\n   * - `accentHues` - `{object=}`: Override hues for accent palette.<br/>\n   * - `warn` - `{string}`: The name of the warn palette to use in the theme.<br/>\n   * - `warnHues` - `{object=}`: Override hues for warn palette.<br/>\n   * - `background` - `{string}`: The name of the background palette to use in the theme.<br/>\n   * - `backgroundHues` - `{object=}`: Override hues for background palette.<br/>\n   * - `dark` - `{boolean}`: Indicates if it's a dark theme.<br/>\n   * @returns {Promise<string>} A resolved promise with the new theme name.\n   */\n\n  /* @ngInject */\n  function ThemingService($rootScope, $mdUtil, $q, $log) {\n    // Allow us to be invoked via a linking function signature.\n    var applyTheme = function (scope, el) {\n      if (el === undefined) { el = scope; scope = undefined; }\n      if (scope === undefined) { scope = $rootScope; }\n      applyTheme.inherit(el, el);\n    };\n\n    Object.defineProperty(applyTheme, 'THEMES', {\n      get: function () {\n        return angular.extend({}, THEMES);\n      }\n    });\n    Object.defineProperty(applyTheme, 'PALETTES', {\n      get: function () {\n        return angular.extend({}, PALETTES);\n      }\n    });\n    Object.defineProperty(applyTheme, 'ALWAYS_WATCH', {\n      get: function () {\n        return alwaysWatchTheme;\n      }\n    });\n    applyTheme.inherit = inheritTheme;\n    applyTheme.registered = registered;\n    applyTheme.defaultTheme = function() { return defaultTheme; };\n    applyTheme.generateTheme = function(name) { generateTheme(THEMES[name], name, themeConfig.nonce); };\n    applyTheme.defineTheme = function(name, options) {\n      options = options || {};\n\n      var theme = registerTheme(name);\n\n      if (options.primary) {\n        theme.primaryPalette(options.primary, options.primaryHues);\n      }\n      if (options.accent) {\n        theme.accentPalette(options.accent, options.accentHues);\n      }\n      if (options.warn) {\n        theme.warnPalette(options.warn, options.warnHues);\n      }\n      if (options.background) {\n        theme.backgroundPalette(options.background, options.backgroundHues);\n      }\n      if (options.dark){\n        theme.dark();\n      }\n\n      this.generateTheme(name);\n\n      return $q.resolve(name);\n    };\n    applyTheme.setBrowserColor = enableBrowserColor;\n\n    return applyTheme;\n\n    /**\n     * Determine is specified theme name is a valid, registered theme\n     */\n    function registered(themeName) {\n      if (themeName === undefined || themeName === '') return true;\n      return applyTheme.THEMES[themeName] !== undefined;\n    }\n\n    /**\n     * Get theme name for the element, then update with Theme CSS class\n     */\n    function inheritTheme (el, parent) {\n      var ctrl = parent.controller('mdTheme') || el.data('$mdThemeController');\n      var scope = el.scope();\n\n      updateThemeClass(lookupThemeName());\n\n      if (ctrl) {\n        var watchTheme = alwaysWatchTheme ||\n                         ctrl.$shouldWatch ||\n                         $mdUtil.parseAttributeBoolean(el.attr('md-theme-watch'));\n\n        if (watchTheme || ctrl.isAsyncTheme) {\n          var clearNameWatcher = function () {\n            if (unwatch) {\n              unwatch();\n              unwatch = undefined;\n            }\n          };\n\n          var unwatch = ctrl.registerChanges(function(name) {\n            updateThemeClass(name);\n\n            if (!watchTheme) {\n              clearNameWatcher();\n            }\n          });\n\n          if (scope) {\n            scope.$on('$destroy', clearNameWatcher);\n          } else {\n            el.on('$destroy', clearNameWatcher);\n          }\n        }\n      }\n\n      /**\n       * Find the theme name from the parent controller or element data\n       */\n      function lookupThemeName() {\n        // As a few components (dialog) add their controllers later, we should also watch for a controller init.\n        return ctrl && ctrl.$mdTheme || (defaultTheme === 'default' ? '' : defaultTheme);\n      }\n\n      /**\n       * Remove old theme class and apply a new one\n       * NOTE: if not a valid theme name, then the current name is not changed\n       */\n      function updateThemeClass(theme) {\n        if (!theme) return;\n        if (!registered(theme)) {\n          $log.warn('Attempted to use unregistered theme \\'' + theme + '\\'. ' +\n                    'Register it with $mdThemingProvider.theme().');\n        }\n\n        var oldTheme = el.data('$mdThemeName');\n        if (oldTheme) el.removeClass('md-' + oldTheme +'-theme');\n        el.addClass('md-' + theme + '-theme');\n        el.data('$mdThemeName', theme);\n        if (ctrl) {\n          el.data('$mdThemeController', ctrl);\n        }\n      }\n    }\n\n  }\n}\n\nfunction ThemingDirective($mdTheming, $interpolate, $parse, $mdUtil, $q, $log) {\n  return {\n    priority: 101, // has to be more than 100 to be before interpolation (issue on IE)\n    link: {\n      pre: function(scope, el, attrs) {\n        var registeredCallbacks = [];\n\n        var startSymbol = $interpolate.startSymbol();\n        var endSymbol = $interpolate.endSymbol();\n\n        var theme = attrs.mdTheme.trim();\n\n        var hasInterpolation =\n          theme.substr(0, startSymbol.length) === startSymbol &&\n          theme.lastIndexOf(endSymbol) === theme.length - endSymbol.length;\n\n        var oneTimeOperator = '::';\n        var oneTimeBind = attrs.mdTheme\n            .split(startSymbol).join('')\n            .split(endSymbol).join('')\n            .trim()\n            .substr(0, oneTimeOperator.length) === oneTimeOperator;\n\n        var getTheme = function () {\n          var interpolation = $interpolate(attrs.mdTheme)(scope);\n          return $parse(interpolation)(scope) || interpolation;\n        };\n\n        var ctrl = {\n          isAsyncTheme: angular.isFunction(getTheme()) || angular.isFunction(getTheme().then),\n          registerChanges: function (cb, context) {\n            if (context) {\n              cb = angular.bind(context, cb);\n            }\n\n            registeredCallbacks.push(cb);\n\n            return function () {\n              var index = registeredCallbacks.indexOf(cb);\n\n              if (index > -1) {\n                registeredCallbacks.splice(index, 1);\n              }\n            };\n          },\n          $setTheme: function (theme) {\n            if (!$mdTheming.registered(theme)) {\n              $log.warn('attempted to use unregistered theme \\'' + theme + '\\'');\n            }\n\n            ctrl.$mdTheme = theme;\n\n            // Iterating backwards to support unregistering during iteration\n            // http://stackoverflow.com/a/9882349/890293\n            // we don't use `reverse()` of array because it mutates the array and we don't want it\n            // to get re-indexed\n            for (var i = registeredCallbacks.length; i--;) {\n              registeredCallbacks[i](theme);\n            }\n          },\n          $shouldWatch: $mdUtil.parseAttributeBoolean(el.attr('md-theme-watch')) ||\n                        $mdTheming.ALWAYS_WATCH ||\n                        (hasInterpolation && !oneTimeBind)\n        };\n\n        el.data('$mdThemeController', ctrl);\n\n        var setParsedTheme = function (theme) {\n          if (typeof theme === 'string') {\n            return ctrl.$setTheme(theme);\n          }\n\n          $q.when(angular.isFunction(theme) ?  theme() : theme)\n            .then(function(name) {\n              ctrl.$setTheme(name);\n            });\n        };\n\n        setParsedTheme(getTheme());\n\n        var unwatch = scope.$watch(getTheme, function(theme) {\n          if (theme) {\n            setParsedTheme(theme);\n\n            if (!ctrl.$shouldWatch) {\n              unwatch();\n            }\n          }\n        });\n      }\n    }\n  };\n}\n\n/**\n * Special directive that will disable ALL runtime Theme style generation and DOM injection\n *\n * <link rel=\"stylesheet\" href=\"angular-material.min.css\">\n * <link rel=\"stylesheet\" href=\"angular-material.themes.css\">\n *\n * <body md-themes-disabled>\n *  ...\n * </body>\n *\n * Note: Using md-themes-css directive requires the developer to load external\n * theme stylesheets; e.g. custom themes from Material-Tools:\n *\n *       `angular-material.themes.css`\n *\n * Another option is to use the ThemingProvider to configure and disable the attribute\n * conversions; this would obviate the use of the `md-themes-css` directive\n *\n */\nfunction disableThemesDirective() {\n  themeConfig.disableTheming = true;\n\n  // Return a 1x-only, first-match attribute directive\n  return {\n    restrict : 'A',\n    priority : '900'\n  };\n}\n\nfunction ThemableDirective($mdTheming) {\n  return $mdTheming;\n}\n\nfunction parseRules(theme, colorType, rules) {\n  checkValidPalette(theme, colorType);\n\n  rules = rules.replace(/THEME_NAME/g, theme.name);\n  var themeNameRegex = new RegExp('\\\\.md-' + theme.name + '-theme', 'g');\n  // Matches '{{ primary-color }}', etc\n  var hueRegex = new RegExp('([\\'\"])?{{\\\\s*([a-zA-Z]+)-?(color|default)?-?(contrast)?-?((?:\\\\d\\\\.?\\\\d*)|(?:[a-zA-Z]+))?\\\\s*}}([\"\\'])?','g');\n  var simpleVariableRegex = /'?\"?{{\\s*([a-zA-Z]+)-(A?\\d+|hue-[0-3]|shadow|default)-?(contrast)?-?((?:\\d\\.?\\d*)|(?:[a-zA-Z]+))?\\s*}}'?\"?/g;\n  var defaultBgHue = theme.colors['background'].hues['default'];\n  var defaultBgContrastType = PALETTES[theme.colors['background'].name][defaultBgHue].contrastType;\n\n  // find and replace simple variables where we use a specific hue, not an entire palette\n  // eg. \"{{primary-100}}\"\n  // \\(' + THEME_COLOR_TYPES.join('\\|') + '\\)'\n  rules = rules.replace(simpleVariableRegex, function(match, colorType, hue, contrast, opacity) {\n    var regexColorType = colorType;\n    if (colorType === 'foreground') {\n      if (hue === 'shadow') {\n        return theme.foregroundShadow;\n      } else if (theme.foregroundPalette[hue]) {\n        // Use user defined palette number (ie: foreground-2)\n        return rgba(colorToRgbaArray(theme.foregroundPalette[hue]));\n      } else if (theme.foregroundPalette['1']){\n        return rgba(colorToRgbaArray(theme.foregroundPalette['1']));\n      }\n      // Default to background-default-contrast-{opacity}\n      colorType = 'background';\n      contrast = 'contrast';\n      if (!opacity && hue) {\n        // Convert references to legacy hues to opacities (i.e. foreground-4 to *-divider)\n        switch (hue) {\n          // hue-1 uses default opacity\n          case '2':\n            opacity = 'secondary';\n            break;\n          case '3':\n            opacity = 'disabled';\n            break;\n          case '4':\n            opacity = 'divider';\n        }\n      }\n      hue = 'default';\n    }\n\n    // `default` is also accepted as a hue-value, because the background palettes are\n    // using it as a name for the default hue.\n    if (hue.indexOf('hue') === 0 || hue === 'default') {\n      hue = theme.colors[colorType].hues[hue];\n    }\n\n    var colorDetails = (PALETTES[ theme.colors[colorType].name ][hue] || '');\n\n    // If user has specified a foreground color, use those\n    if (colorType === 'background' && contrast && regexColorType !== 'foreground' &&\n        colorDetails.contrastType === defaultBgContrastType) {\n      // Don't process if colorType was changed\n      switch (opacity) {\n        case 'secondary':\n        case 'icon':\n          if (theme.foregroundPalette['2']) {\n            return rgba(colorToRgbaArray(theme.foregroundPalette['2']));\n          }\n          break;\n        case 'disabled':\n        case 'hint':\n          if (theme.foregroundPalette['3']) {\n            return rgba(colorToRgbaArray(theme.foregroundPalette['3']));\n          }\n          break;\n        case 'divider':\n          if (theme.foregroundPalette['4']) {\n            return rgba(colorToRgbaArray(theme.foregroundPalette['4']));\n          }\n          break;\n        default:\n          if (theme.foregroundPalette['1']) {\n            return rgba(colorToRgbaArray(theme.foregroundPalette['1']));\n          }\n          break;\n      }\n    }\n\n    if (contrast && opacity) {\n      opacity = colorDetails.opacity[opacity] || opacity;\n    }\n\n    return rgba(colorDetails[contrast ? 'contrast' : 'value'], opacity);\n  });\n\n  var generatedRules = [];\n\n  // For each type, generate rules for each hue (ie. default, md-hue-1, md-hue-2, md-hue-3)\n  angular.forEach(['default', 'hue-1', 'hue-2', 'hue-3'], function(hueName) {\n    var newRule = rules\n      .replace(hueRegex, function(match, _, matchedColorType, hueType, contrast, opacity) {\n        var color = theme.colors[matchedColorType];\n        var palette = PALETTES[color.name];\n        var hueValue = color.hues[hueName];\n        if (contrast && opacity) {\n          opacity = palette[hueValue].opacity[opacity] || opacity;\n        }\n        return rgba(palette[hueValue][hueType === 'color' ? 'value' : 'contrast'], opacity);\n      });\n    if (hueName !== 'default') {\n      newRule = newRule.replace(themeNameRegex, '.md-' + theme.name + '-theme.md-' + hueName);\n    }\n\n    // Don't apply a selector rule to the default theme, making it easier to override\n    // styles of the base-component\n    if (theme.name === 'default') {\n      var themeRuleRegex = /((?:\\s|>|\\.|\\w|-|:|\\(|\\)|\\[|]|\"|'|=)*)\\.md-default-theme((?:\\s|>|\\.|\\w|-|:|\\(|\\)|\\[|]|\"|'|=)*)/g;\n\n      newRule = newRule.replace(themeRuleRegex, function(match, start, end) {\n        return match + ', ' + start + end;\n      });\n    }\n    generatedRules.push(newRule);\n  });\n\n  return generatedRules;\n}\n\nvar rulesByType = {};\n\n// Generate our themes at run time given the state of THEMES and PALETTES\nfunction generateAllThemes($injector, $mdTheming) {\n  var head = document.head;\n  var firstChild = head ? head.firstElementChild : null;\n  var themeCss = !themeConfig.disableTheming && $injector.has('$MD_THEME_CSS') ? $injector.get('$MD_THEME_CSS') : '';\n\n  // Append our custom registered styles to the theme stylesheet.\n  themeCss += themeConfig.registeredStyles.join('');\n\n  if (!firstChild) return;\n  if (themeCss.length === 0) return; // no rules, so no point in running this expensive task\n\n  // Expose contrast colors for palettes to ensure that text is always readable\n  angular.forEach(PALETTES, sanitizePalette);\n\n  // MD_THEME_CSS is a string generated by the build process that includes all the themeable\n  // components as templates\n\n  // Break the CSS into individual rules\n  var rules = splitCss(themeCss).map(function(rule) {\n    return rule.trim();\n  });\n\n  THEME_COLOR_TYPES.forEach(function(type) {\n    rulesByType[type] = '';\n  });\n\n  // Sort the rules based on type, allowing us to do color substitution on a per-type basis\n  rules.forEach(function(rule) {\n    // First: test that if the rule has '.md-accent', it goes into the accent set of rules\n    for (var i = 0, type; type = THEME_COLOR_TYPES[i]; i++) {\n      if (rule.indexOf('.md-' + type) > -1) {\n        return rulesByType[type] += rule;\n      }\n    }\n\n    // If no eg 'md-accent' class is found, try to just find 'accent' in the rule and guess from\n    // there\n    for (i = 0; type = THEME_COLOR_TYPES[i]; i++) {\n      if (rule.indexOf(type) > -1) {\n        return rulesByType[type] += rule;\n      }\n    }\n\n    // Default to the primary array\n    return rulesByType[DEFAULT_COLOR_TYPE] += rule;\n  });\n\n  // If themes are being generated on-demand, quit here. The user will later manually\n  // call generateTheme to do this on a theme-by-theme basis.\n  if (themeConfig.generateOnDemand) return;\n\n  angular.forEach($mdTheming.THEMES, function(theme) {\n    if (!GENERATED[theme.name] && !($mdTheming.defaultTheme() !== 'default' && theme.name === 'default')) {\n      generateTheme(theme, theme.name, themeConfig.nonce);\n    }\n  });\n\n\n  // *************************\n  // Internal functions\n  // *************************\n\n  /**\n   * The user specifies a 'default' contrast color as either light or dark, then explicitly lists\n   * which hues are the opposite contrast (eg. A100 has dark, A200 has light).\n   * @param {!object} palette to sanitize\n   */\n  function sanitizePalette(palette) {\n    var defaultContrast = palette.contrastDefaultColor;\n    var lightColors = palette.contrastLightColors || [];\n    var strongLightColors = palette.contrastStrongLightColors || [];\n    var darkColors = palette.contrastDarkColors || [];\n\n    // These colors are provided as space-separated lists\n    if (typeof lightColors === 'string') lightColors = lightColors.split(' ');\n    if (typeof strongLightColors === 'string') strongLightColors = strongLightColors.split(' ');\n    if (typeof darkColors === 'string') darkColors = darkColors.split(' ');\n\n    // Cleanup after ourselves\n    delete palette.contrastDefaultColor;\n    delete palette.contrastLightColors;\n    delete palette.contrastStrongLightColors;\n    delete palette.contrastDarkColors;\n\n    /**\n     * @param {string} hueName\n     * @return {'dark'|'light'|'strongLight'}\n     */\n    function getContrastType(hueName) {\n      if (defaultContrast === 'light' ? darkColors.indexOf(hueName) !== -1  :\n        (lightColors.indexOf(hueName) === -1 && strongLightColors.indexOf(hueName) === -1)) {\n        return 'dark';\n      }\n      if (strongLightColors.indexOf(hueName) !== -1) {\n        return 'strongLight';\n      }\n      return 'light';\n    }\n\n    /**\n     * @param {'dark'|'light'|'strongLight'} contrastType\n     * @return {[number, number, number]} [red, green, blue] array\n     */\n    function getContrastColor(contrastType) {\n      switch (contrastType) {\n        default:\n        case 'strongLight':\n          return STRONG_LIGHT_CONTRAST_COLOR;\n        case 'light':\n          return LIGHT_CONTRAST_COLOR;\n        case 'dark':\n          return DARK_CONTRAST_COLOR;\n      }\n    }\n\n    /**\n     * @param {'dark'|'light'|'strongLight'} contrastType\n     * @return {{secondary: number, divider: number, hint: number, icon: number, disabled: number}}\n     */\n    function getOpacityValues(contrastType) {\n      switch (contrastType) {\n        default:\n        case 'strongLight':\n          return STRONG_LIGHT_CONTRAST_OPACITY;\n        case 'light':\n          return LIGHT_CONTRAST_OPACITY;\n        case 'dark':\n          return DARK_CONTRAST_OPACITY;\n      }\n    }\n    // Change { 'A100': '#fffeee' } to { 'A100': { value: '#fffeee', contrast:DARK_CONTRAST_COLOR }\n    angular.forEach(palette, function(hueValue, hueName) {\n      if (angular.isObject(hueValue)) return; // Already converted\n      // Map everything to rgb colors\n      var rgbValue = colorToRgbaArray(hueValue);\n      if (!rgbValue) {\n        throw new Error(\"Color %1, in palette %2's hue %3, is invalid. Hex or rgb(a) color expected.\"\n                        .replace('%1', hueValue)\n                        .replace('%2', palette.name)\n                        .replace('%3', hueName));\n      }\n\n      var contrastType = getContrastType(hueName);\n      palette[hueName] = {\n        hex: palette[hueName],\n        value: rgbValue,\n        contrastType: contrastType,\n        contrast: getContrastColor(contrastType),\n        opacity: getOpacityValues(contrastType)\n      };\n    });\n  }\n\n  /**\n   * @param {string} themeCss\n   * @returns {[]} a string representing a CSS file that is split, producing an array with a rule\n   *  at each index.\n   */\n  function splitCss(themeCss) {\n    var result = [];\n    var currentRule = '';\n    var openedCurlyBrackets = 0;\n    var closedCurlyBrackets = 0;\n\n    for (var i = 0; i < themeCss.length; i++) {\n      var character = themeCss.charAt(i);\n\n      // Check for content in quotes\n      if (character === '\\'' || character === '\"') {\n        // Append text in quotes to current rule\n        var textInQuotes = themeCss.substring(i, themeCss.indexOf(character, i + 1));\n        currentRule += textInQuotes;\n\n        // Jump to the closing quote char\n        i += textInQuotes.length;\n      } else {\n        currentRule += character;\n\n        if (character === '}') {\n          closedCurlyBrackets++;\n          if (closedCurlyBrackets === openedCurlyBrackets) {\n            closedCurlyBrackets = 0;\n            openedCurlyBrackets = 0;\n            result.push(currentRule);\n            currentRule = '';\n          }\n        } else if (character === '{') {\n          openedCurlyBrackets++;\n        }\n      }\n    }\n    // Add comments added after last valid rule.\n    if (currentRule !== '') {\n      result.push(currentRule);\n    }\n\n    return result;\n  }\n}\n\nfunction generateTheme(theme, name, nonce) {\n  var head = document.head;\n  var firstChild = head ? head.firstElementChild : null;\n\n  if (!GENERATED[name]) {\n    // For each theme, use the color palettes specified for\n    // `primary`, `warn` and `accent` to generate CSS rules.\n    THEME_COLOR_TYPES.forEach(function(colorType) {\n      var styleStrings = parseRules(theme, colorType, rulesByType[colorType]);\n      while (styleStrings.length) {\n        var styleContent = styleStrings.shift();\n        if (styleContent) {\n          var style = document.createElement('style');\n          style.setAttribute('md-theme-style', '');\n          if (nonce) {\n            style.setAttribute('nonce', nonce);\n          }\n          style.appendChild(document.createTextNode(styleContent));\n          head.insertBefore(style, firstChild);\n        }\n      }\n    });\n\n    GENERATED[theme.name] = true;\n  }\n\n}\n\n\nfunction checkValidPalette(theme, colorType) {\n  // If theme attempts to use a palette that doesnt exist, throw error\n  if (!PALETTES[ (theme.colors[colorType] || {}).name ]) {\n    throw new Error(\n      \"You supplied an invalid color palette for theme %1's %2 palette. Available palettes: %3\"\n                    .replace('%1', theme.name)\n                    .replace('%2', colorType)\n                    .replace('%3', Object.keys(PALETTES).join(', '))\n    );\n  }\n}\n\n/**\n * @param {string} clr rbg or rgba color\n * @return {number[]|undefined} [red, green, blue] array if it can be computed\n */\nfunction colorToRgbaArray(clr) {\n  if (angular.isArray(clr) && clr.length === 3) return clr;\n  if (/^rgb/.test(clr)) {\n    return clr.replace(/(^\\s*rgba?\\(|\\)\\s*$)/g, '').split(',').map(function(value, i) {\n      return i === 3 ? parseFloat(value) : parseInt(value, 10);\n    });\n  }\n  if (clr.charAt(0) === '#') clr = clr.substring(1);\n  if (!/^([a-fA-F0-9]{3}){1,2}$/g.test(clr)) return;\n\n  var dig = clr.length / 3;\n  var red = clr.substr(0, dig);\n  var grn = clr.substr(dig, dig);\n  var blu = clr.substr(dig * 2);\n  if (dig === 1) {\n    red += red;\n    grn += grn;\n    blu += blu;\n  }\n  return [parseInt(red, 16), parseInt(grn, 16), parseInt(blu, 16)];\n}\n\nfunction rgba(rgbArray, opacity) {\n  if (!rgbArray) return \"rgb('0,0,0')\";\n\n  if (rgbArray.length === 4) {\n    rgbArray = angular.copy(rgbArray);\n    opacity ? rgbArray.pop() : opacity = rgbArray.pop();\n  }\n  return opacity && (typeof opacity == 'number' || (typeof opacity == 'string' && opacity.length)) ?\n    'rgba(' + rgbArray.join(',') + ',' + opacity + ')' :\n    'rgb(' + rgbArray.join(',') + ')';\n}\n\n\n})(window.angular);\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.autocomplete\n */\n/*\n * @see js folder for autocomplete implementation\n */\nangular.module('material.components.autocomplete', [\n  'material.core',\n  'material.components.icon',\n  'material.components.virtualRepeat'\n]);\n\n})();\n(function(){\n\"use strict\";\n\n\nMdAutocompleteCtrl.$inject = [\"$scope\", \"$element\", \"$mdUtil\", \"$mdConstant\", \"$mdTheming\", \"$window\", \"$animate\", \"$rootElement\", \"$attrs\", \"$q\", \"$log\", \"$mdLiveAnnouncer\"];angular\n    .module('material.components.autocomplete')\n    .controller('MdAutocompleteCtrl', MdAutocompleteCtrl);\n\nvar ITEM_HEIGHT   = 48,\n    MAX_ITEMS     = 5,\n    MENU_PADDING  = 8,\n    INPUT_PADDING = 2, // Padding provided by `md-input-container`\n    MODE_STANDARD = 'standard',\n    MODE_VIRTUAL = 'virtual';\n\nfunction MdAutocompleteCtrl ($scope, $element, $mdUtil, $mdConstant, $mdTheming, $window,\n                             $animate, $rootElement, $attrs, $q, $log, $mdLiveAnnouncer) {\n\n  // Internal Variables.\n  var ctrl                 = this,\n      itemParts            = $scope.itemsExpr.split(/ in /i),\n      itemExpr             = itemParts[ 1 ],\n      elements             = null,\n      cache                = {},\n      noBlur               = false,\n      selectedItemWatchers = [],\n      hasFocus             = false,\n      fetchesInProgress    = 0,\n      enableWrapScroll     = null,\n      inputModelCtrl       = null,\n      debouncedOnResize    = $mdUtil.debounce(onWindowResize),\n      mode                 = MODE_VIRTUAL; // default\n\n  /**\n   * The root document element. This is used for attaching a top-level click handler to\n   * close the options panel when a click outside said panel occurs. We use `documentElement`\n   * instead of body because, when scrolling is disabled, some browsers consider the body element\n   * to be completely off the screen and propagate events directly to the html element.\n   * @type {!Object} angular.JQLite\n   */\n  ctrl.documentElement = angular.element(document.documentElement);\n\n  // Public Exported Variables with handlers\n  defineProperty('hidden', handleHiddenChange, true);\n\n  // Public Exported Variables\n  ctrl.scope = $scope;\n  ctrl.parent = $scope.$parent;\n  ctrl.itemName = itemParts[0];\n  ctrl.matches = [];\n  ctrl.loading = false;\n  ctrl.hidden = true;\n  ctrl.index = -1;\n  ctrl.activeOption = null;\n  ctrl.id = $mdUtil.nextUid();\n  ctrl.isDisabled = null;\n  ctrl.isRequired = null;\n  ctrl.isReadonly = null;\n  ctrl.hasNotFound = false;\n  ctrl.selectedMessage = $scope.selectedMessage || 'selected';\n  ctrl.noMatchMessage = $scope.noMatchMessage || 'There are no matches available.';\n  ctrl.singleMatchMessage = $scope.singleMatchMessage || 'There is 1 match available.';\n  ctrl.multipleMatchStartMessage = $scope.multipleMatchStartMessage || 'There are ';\n  ctrl.multipleMatchEndMessage = $scope.multipleMatchEndMessage || ' matches available.';\n  ctrl.defaultEscapeOptions = 'clear';\n\n  // Public Exported Methods\n  ctrl.keydown = keydown;\n  ctrl.blur = blur;\n  ctrl.focus = focus;\n  ctrl.clear = clearValue;\n  ctrl.select = select;\n  ctrl.listEnter = onListEnter;\n  ctrl.listLeave = onListLeave;\n  ctrl.focusInput = focusInputElement;\n  ctrl.getCurrentDisplayValue = getCurrentDisplayValue;\n  ctrl.registerSelectedItemWatcher = registerSelectedItemWatcher;\n  ctrl.unregisterSelectedItemWatcher = unregisterSelectedItemWatcher;\n  ctrl.notFoundVisible = notFoundVisible;\n  ctrl.loadingIsVisible = loadingIsVisible;\n  ctrl.positionDropdown = positionDropdown;\n\n  /**\n   * Report types to be used for the $mdLiveAnnouncer\n   * @enum {number} Unique flag id.\n   */\n  var ReportType = {\n    Count: 1,\n    Selected: 2\n  };\n\n  return init();\n\n  // initialization methods\n\n  /**\n   * Initialize the controller, setup watchers, gather elements\n   */\n  function init () {\n\n    $mdUtil.initOptionalProperties($scope, $attrs, {\n      searchText: '',\n      selectedItem: null,\n      clearButton: false,\n      disableVirtualRepeat: false,\n    });\n\n    $mdTheming($element);\n    configureWatchers();\n    $mdUtil.nextTick(function () {\n\n      gatherElements();\n      moveDropdown();\n\n      // Touch devices often do not send a click event on tap. We still want to focus the input\n      // and open the options pop-up in these cases.\n      $element.on('touchstart', focusInputElement);\n\n      // Forward all focus events to the input element when autofocus is enabled\n      if ($scope.autofocus) {\n        $element.on('focus', focusInputElement);\n      }\n      if ($scope.inputAriaDescribedBy) {\n        elements.input.setAttribute('aria-describedby', $scope.inputAriaDescribedBy);\n      }\n      if (!$scope.floatingLabel) {\n        if ($scope.inputAriaLabel) {\n          elements.input.setAttribute('aria-label', $scope.inputAriaLabel);\n        } else if ($scope.inputAriaLabelledBy) {\n          elements.input.setAttribute('aria-labelledby', $scope.inputAriaLabelledBy);\n        } else if ($scope.placeholder) {\n          // If no aria-label or aria-labelledby references are defined, then just label using the\n          // placeholder.\n          elements.input.setAttribute('aria-label', $scope.placeholder);\n        }\n      }\n    });\n  }\n\n  function updateModelValidators() {\n    if (!$scope.requireMatch || !inputModelCtrl) return;\n\n    inputModelCtrl.$setValidity('md-require-match', !!$scope.selectedItem || !$scope.searchText);\n  }\n\n  /**\n   * Calculates the dropdown's position and applies the new styles to the menu element\n   * @returns {*}\n   */\n  function positionDropdown () {\n    if (!elements) {\n      return $mdUtil.nextTick(positionDropdown, false, $scope);\n    }\n\n    var dropdownHeight = ($scope.dropdownItems || MAX_ITEMS) * ITEM_HEIGHT;\n    var hrect  = elements.wrap.getBoundingClientRect(),\n        vrect  = elements.snap.getBoundingClientRect(),\n        root   = elements.root.getBoundingClientRect(),\n        top    = vrect.bottom - root.top,\n        bot    = root.bottom - vrect.top,\n        left   = hrect.left - root.left,\n        width  = hrect.width,\n        offset = getVerticalOffset(),\n        position = $scope.dropdownPosition,\n        styles, enoughBottomSpace, enoughTopSpace;\n    var bottomSpace = root.bottom - vrect.bottom - MENU_PADDING + $mdUtil.getViewportTop();\n    var topSpace = vrect.top - MENU_PADDING;\n\n    // Automatically determine dropdown placement based on available space in viewport.\n    if (!position) {\n      enoughTopSpace = topSpace > dropdownHeight;\n      enoughBottomSpace = bottomSpace > dropdownHeight;\n      if (enoughBottomSpace) {\n        position = 'bottom';\n      } else if (enoughTopSpace) {\n        position = 'top';\n      } else {\n        position = topSpace > bottomSpace ? 'top' : 'bottom';\n      }\n    }\n    // Adjust the width to account for the padding provided by `md-input-container`\n    if ($attrs.mdFloatingLabel) {\n      left += INPUT_PADDING;\n      width -= INPUT_PADDING * 2;\n    }\n    styles = {\n      left:     left + 'px',\n      minWidth: width + 'px',\n      maxWidth: Math.max(hrect.right - root.left, root.right - hrect.left) - MENU_PADDING + 'px'\n    };\n\n    if (position === 'top') {\n      styles.top       = 'auto';\n      styles.bottom    = bot + 'px';\n      styles.maxHeight = Math.min(dropdownHeight, topSpace) + 'px';\n    } else {\n      bottomSpace = root.bottom - hrect.bottom - MENU_PADDING + $mdUtil.getViewportTop();\n\n      styles.top       = (top - offset) + 'px';\n      styles.bottom    = 'auto';\n      styles.maxHeight = Math.min(dropdownHeight, bottomSpace) + 'px';\n    }\n\n    elements.$.scrollContainer.css(styles);\n    $mdUtil.nextTick(correctHorizontalAlignment, false, $scope);\n\n    /**\n     * Calculates the vertical offset for floating label examples to account for ngMessages\n     * @returns {number}\n     */\n    function getVerticalOffset () {\n      var offset = 0;\n      var inputContainer = $element.find('md-input-container');\n      if (inputContainer.length) {\n        var input = inputContainer.find('input');\n        offset = inputContainer.prop('offsetHeight');\n        offset -= input.prop('offsetTop');\n        offset -= input.prop('offsetHeight');\n        // add in the height left up top for the floating label text\n        offset += inputContainer.prop('offsetTop');\n      }\n      return offset;\n    }\n\n    /**\n     * Makes sure that the menu doesn't go off of the screen on either side.\n     */\n    function correctHorizontalAlignment () {\n      var dropdown = elements.scrollContainer.getBoundingClientRect(),\n          styles   = {};\n      if (dropdown.right > root.right) {\n        styles.left = (hrect.right - dropdown.width) + 'px';\n      }\n      elements.$.scrollContainer.css(styles);\n    }\n  }\n\n  /**\n   * Moves the dropdown menu to the body tag in order to avoid z-index and overflow issues.\n   */\n  function moveDropdown () {\n    if (!elements.$.root.length) return;\n    $mdTheming(elements.$.scrollContainer);\n    elements.$.scrollContainer.detach();\n    elements.$.root.append(elements.$.scrollContainer);\n    if ($animate.pin) $animate.pin(elements.$.scrollContainer, $rootElement);\n  }\n\n  /**\n   * Sends focus to the input element.\n   */\n  function focusInputElement () {\n    elements.input.focus();\n  }\n\n  /**\n   * Update the activeOption based on the selected item in the listbox.\n   * The activeOption is used in the template to set the aria-activedescendant attribute, which\n   * enables screen readers to properly handle visual focus within the listbox and announce the\n   * item's place in the list. I.e. \"List item 3 of 50\". Anytime that `ctrl.index` changes, this\n   * function needs to be called to update the activeOption.\n   */\n  function updateActiveOption() {\n    var selectedOption = elements.scroller.querySelector('.selected');\n    if (selectedOption) {\n      ctrl.activeOption = selectedOption.id;\n    } else {\n      ctrl.activeOption = null;\n    }\n  }\n\n  /**\n   * Sets up any watchers used by autocomplete\n   */\n  function configureWatchers () {\n    var wait = parseInt($scope.delay, 10) || 0;\n\n    $attrs.$observe('disabled', function (value) { ctrl.isDisabled = $mdUtil.parseAttributeBoolean(value, false); });\n    $attrs.$observe('required', function (value) { ctrl.isRequired = $mdUtil.parseAttributeBoolean(value, false); });\n    $attrs.$observe('readonly', function (value) { ctrl.isReadonly = $mdUtil.parseAttributeBoolean(value, false); });\n\n    $scope.$watch('searchText', wait ? $mdUtil.debounce(handleSearchText, wait) : handleSearchText);\n    $scope.$watch('selectedItem', selectedItemChange);\n\n    angular.element($window).on('resize', debouncedOnResize);\n\n    $scope.$on('$destroy', cleanup);\n  }\n\n  /**\n   * Removes any events or leftover elements created by this controller\n   */\n  function cleanup () {\n    if (!ctrl.hidden) {\n      $mdUtil.enableScrolling();\n    }\n\n    angular.element($window).off('resize', debouncedOnResize);\n\n    if (elements){\n      var items = ['ul', 'scroller', 'scrollContainer', 'input'];\n      angular.forEach(items, function(key){\n        elements.$[key].remove();\n      });\n    }\n  }\n\n  /**\n   * Event handler to be called whenever the window resizes.\n   */\n  function onWindowResize() {\n    if (!ctrl.hidden) {\n      positionDropdown();\n    }\n  }\n\n  /**\n   * Gathers all of the elements needed for this controller\n   */\n  function gatherElements () {\n\n    var snapWrap = gatherSnapWrap();\n\n    elements = {\n      main:  $element[0],\n      scrollContainer: $element[0].querySelector('.md-virtual-repeat-container, .md-standard-list-container'),\n      scroller: $element[0].querySelector('.md-virtual-repeat-scroller, .md-standard-list-scroller'),\n      ul:    $element.find('ul')[0],\n      input: $element.find('input')[0],\n      wrap:  snapWrap.wrap,\n      snap:  snapWrap.snap,\n      root:  document.body,\n    };\n\n    elements.li   = elements.ul.getElementsByTagName('li');\n    elements.$    = getAngularElements(elements);\n    mode = elements.scrollContainer.classList.contains('md-standard-list-container') ? MODE_STANDARD : MODE_VIRTUAL;\n    inputModelCtrl = elements.$.input.controller('ngModel');\n  }\n\n  /**\n   * Gathers the snap and wrap elements\n   *\n   */\n  function gatherSnapWrap() {\n    var element;\n    var value;\n    for (element = $element; element.length; element = element.parent()) {\n      value = element.attr('md-autocomplete-snap');\n      if (angular.isDefined(value)) break;\n    }\n\n    if (element.length) {\n      return {\n        snap: element[0],\n        wrap: (value.toLowerCase() === 'width') ? element[0] : $element.find('md-autocomplete-wrap')[0]\n      };\n    }\n\n    var wrap = $element.find('md-autocomplete-wrap')[0];\n    return {\n      snap: wrap,\n      wrap: wrap\n    };\n  }\n\n  /**\n   * Gathers angular-wrapped versions of each element\n   * @param elements\n   * @returns {{}}\n   */\n  function getAngularElements (elements) {\n    var obj = {};\n    for (var key in elements) {\n      if (elements.hasOwnProperty(key)) obj[ key ] = angular.element(elements[ key ]);\n    }\n    return obj;\n  }\n\n  // event/change handlers\n\n  /**\n   * @param {Event} $event\n   */\n  function preventDefault($event) {\n    $event.preventDefault();\n  }\n\n  /**\n   * @param {Event} $event\n   */\n  function stopPropagation($event) {\n    $event.stopPropagation();\n  }\n\n  /**\n   * Handles changes to the `hidden` property.\n   * @param {boolean} hidden true to hide the options pop-up, false to show it.\n   * @param {boolean} oldHidden the previous value of hidden\n   */\n  function handleHiddenChange (hidden, oldHidden) {\n    var scrollContainerElement;\n\n    if (elements) {\n      scrollContainerElement = angular.element(elements.scrollContainer);\n    }\n    if (!hidden && oldHidden) {\n      positionDropdown();\n\n      // Report in polite mode, because the screen reader should finish the default description of\n      // the input element.\n      reportMessages(true, ReportType.Count | ReportType.Selected);\n\n      if (elements) {\n        $mdUtil.disableScrollAround(elements.scrollContainer);\n        enableWrapScroll = disableElementScrollEvents(elements.wrap);\n        if ($mdUtil.isIos) {\n          ctrl.documentElement.on('touchend', handleTouchOutsidePanel);\n          if (scrollContainerElement) {\n            scrollContainerElement.on('touchstart touchmove touchend', stopPropagation);\n          }\n        }\n        ctrl.index = getDefaultIndex();\n        $mdUtil.nextTick(function() {\n          updateActiveOption();\n          updateScroll();\n        });\n      }\n    } else if (hidden && !oldHidden) {\n      if ($mdUtil.isIos) {\n        ctrl.documentElement.off('touchend', handleTouchOutsidePanel);\n        if (scrollContainerElement) {\n          scrollContainerElement.off('touchstart touchmove touchend', stopPropagation);\n        }\n      }\n      $mdUtil.enableScrolling();\n\n      if (enableWrapScroll) {\n        enableWrapScroll();\n        enableWrapScroll = null;\n      }\n    }\n  }\n\n  /**\n   * Handling touch events that bubble up to the document is required for closing the dropdown\n   * panel on touch outside of the options pop-up panel on iOS.\n   * @param {Event} $event\n   */\n  function handleTouchOutsidePanel($event) {\n    ctrl.hidden = true;\n    // iOS does not blur the pop-up for touches on the scroll mask, so we have to do it.\n    doBlur(true);\n  }\n\n  /**\n   * Disables scrolling for a specific element.\n   * @param {!string|!DOMElement} element to disable scrolling\n   * @return {Function} function to call to re-enable scrolling for the element\n   */\n  function disableElementScrollEvents(element) {\n    var elementToDisable = angular.element(element);\n    elementToDisable.on('wheel touchmove', preventDefault);\n\n    return function() {\n      elementToDisable.off('wheel touchmove', preventDefault);\n    };\n  }\n\n  /**\n   * When the user mouses over the dropdown menu, ignore blur events.\n   */\n  function onListEnter () {\n    noBlur = true;\n  }\n\n  /**\n   * When the user's mouse leaves the menu, blur events may hide the menu again.\n   */\n  function onListLeave () {\n    if (!hasFocus && !ctrl.hidden) elements.input.focus();\n    noBlur = false;\n    ctrl.hidden = shouldHide();\n  }\n\n  /**\n   * Handles changes to the selected item.\n   * @param selectedItem\n   * @param previousSelectedItem\n   */\n  function selectedItemChange (selectedItem, previousSelectedItem) {\n\n    updateModelValidators();\n\n    if (selectedItem) {\n      getDisplayValue(selectedItem).then(function (val) {\n        $scope.searchText = val;\n        handleSelectedItemChange(selectedItem, previousSelectedItem);\n      });\n    } else if (previousSelectedItem && $scope.searchText) {\n      getDisplayValue(previousSelectedItem).then(function(displayValue) {\n        // Clear the searchText, when the selectedItem is set to null.\n        // Do not clear the searchText, when the searchText isn't matching with the previous\n        // selected item.\n        if (angular.isString($scope.searchText)\n          && displayValue.toString().toLowerCase() === $scope.searchText.toLowerCase()) {\n          $scope.searchText = '';\n        }\n      });\n    }\n\n    if (selectedItem !== previousSelectedItem) {\n      announceItemChange();\n    }\n  }\n\n  /**\n   * Use the user-defined expression to announce changes each time a new item is selected\n   */\n  function announceItemChange () {\n    angular.isFunction($scope.itemChange) &&\n      $scope.itemChange(getItemAsNameVal($scope.selectedItem));\n  }\n\n  /**\n   * Use the user-defined expression to announce changes each time the search text is changed\n   */\n  function announceTextChange () {\n    angular.isFunction($scope.textChange) && $scope.textChange();\n  }\n\n  /**\n   * Calls any external watchers listening for the selected item.  Used in conjunction with\n   * `registerSelectedItemWatcher`.\n   * @param selectedItem\n   * @param previousSelectedItem\n   */\n  function handleSelectedItemChange (selectedItem, previousSelectedItem) {\n    selectedItemWatchers.forEach(function (watcher) {\n      watcher(selectedItem, previousSelectedItem);\n    });\n  }\n\n  /**\n   * Register a function to be called when the selected item changes.\n   * @param cb\n   */\n  function registerSelectedItemWatcher (cb) {\n    if (selectedItemWatchers.indexOf(cb) === -1) {\n      selectedItemWatchers.push(cb);\n    }\n  }\n\n  /**\n   * Unregister a function previously registered for selected item changes.\n   * @param cb\n   */\n  function unregisterSelectedItemWatcher (cb) {\n    var i = selectedItemWatchers.indexOf(cb);\n    if (i !== -1) {\n      selectedItemWatchers.splice(i, 1);\n    }\n  }\n\n  /**\n   * Handles changes to the searchText property.\n   * @param {string} searchText\n   * @param {string} previousSearchText\n   */\n  function handleSearchText (searchText, previousSearchText) {\n    ctrl.index = getDefaultIndex();\n\n    // do nothing on init\n    if (searchText === previousSearchText) return;\n\n    updateModelValidators();\n\n    getDisplayValue($scope.selectedItem).then(function (val) {\n      // clear selected item if search text no longer matches it\n      if (searchText !== val) {\n        $scope.selectedItem = null;\n\n        // trigger change event if available\n        if (searchText !== previousSearchText) {\n          announceTextChange();\n        }\n\n        // cancel results if search text is not long enough\n        if (!isMinLengthMet()) {\n          ctrl.matches = [];\n\n          setLoading(false);\n          reportMessages(true, ReportType.Count);\n\n        } else {\n          handleQuery();\n        }\n      }\n    });\n\n  }\n\n  /**\n   * Handles input blur event, determines if the dropdown should hide.\n   * @param {Event=} $event\n   */\n  function blur($event) {\n    hasFocus = false;\n\n    if (!noBlur) {\n      ctrl.hidden = shouldHide();\n      evalAttr('ngBlur', { $event: $event });\n    } else if (angular.isObject($event)) {\n      $event.stopImmediatePropagation();\n    }\n  }\n\n  /**\n   * Force blur on input element\n   * @param {boolean} forceBlur\n   */\n  function doBlur(forceBlur) {\n    if (forceBlur) {\n      noBlur = false;\n      hasFocus = false;\n    }\n    elements.input.blur();\n  }\n\n  /**\n   * Handles input focus event, determines if the dropdown should show.\n   */\n  function focus($event) {\n    hasFocus = true;\n\n    if (isSearchable() && isMinLengthMet()) {\n      handleQuery();\n    }\n\n    ctrl.hidden = shouldHide();\n\n    evalAttr('ngFocus', { $event: $event });\n  }\n\n  /**\n   * Handles keyboard input.\n   * @param event\n   */\n  function keydown (event) {\n    switch (event.keyCode) {\n      case $mdConstant.KEY_CODE.DOWN_ARROW:\n        if (ctrl.loading || hasSelection()) return;\n        event.stopPropagation();\n        event.preventDefault();\n        ctrl.index = ctrl.index + 1 > ctrl.matches.length - 1 ? 0 : Math.min(ctrl.index + 1, ctrl.matches.length - 1);\n        $mdUtil.nextTick(updateActiveOption);\n        updateScroll();\n        break;\n      case $mdConstant.KEY_CODE.UP_ARROW:\n        if (ctrl.loading || hasSelection()) return;\n        event.stopPropagation();\n        event.preventDefault();\n        ctrl.index = ctrl.index - 1 < 0 ? ctrl.matches.length - 1 : Math.max(0, ctrl.index - 1);\n        $mdUtil.nextTick(updateActiveOption);\n        updateScroll();\n        break;\n      case $mdConstant.KEY_CODE.TAB:\n        // If we hit tab, assume that we've left the list so it will close\n        onListLeave();\n\n        if (ctrl.hidden || ctrl.loading || ctrl.index < 0 || ctrl.matches.length < 1) return;\n        select(ctrl.index);\n        break;\n      case $mdConstant.KEY_CODE.ENTER:\n        if (ctrl.hidden || ctrl.loading || ctrl.index < 0 || ctrl.matches.length < 1) return;\n        if (hasSelection()) return;\n        event.stopImmediatePropagation();\n        event.preventDefault();\n        select(ctrl.index);\n        break;\n      case $mdConstant.KEY_CODE.ESCAPE:\n        event.preventDefault(); // Prevent browser from always clearing input\n        if (!shouldProcessEscape()) return;\n        event.stopPropagation();\n\n        clearSelectedItem();\n        if ($scope.searchText && hasEscapeOption('clear')) {\n          clearSearchText();\n        }\n\n        // Manually hide (needed for mdNotFound support)\n        ctrl.hidden = true;\n\n        if (hasEscapeOption('blur')) {\n          // Force the component to blur if they hit escape\n          doBlur(true);\n        }\n\n        break;\n      default:\n    }\n  }\n\n  // getters\n\n  /**\n   * Returns the minimum length needed to display the dropdown.\n   * @returns {*}\n   */\n  function getMinLength () {\n    return angular.isNumber($scope.minLength) ? $scope.minLength : 1;\n  }\n\n  /**\n   * Returns the display value for an item.\n   * @param {*} item\n   * @returns {*}\n   */\n  function getDisplayValue (item) {\n    return $q.when(getItemText(item) || item).then(function(itemText) {\n      if (itemText && !angular.isString(itemText)) {\n        $log.warn('md-autocomplete: Could not resolve display value to a string. ' +\n          'Please check the `md-item-text` attribute.');\n      }\n\n      return itemText;\n    });\n\n    /**\n     * Getter function to invoke user-defined expression (in the directive)\n     * to convert your object to a single string.\n     * @param {*} item\n     * @returns {string|null}\n     */\n    function getItemText (item) {\n      return (item && $scope.itemText) ? $scope.itemText(getItemAsNameVal(item)) : null;\n    }\n  }\n\n  /**\n   * Returns the locals object for compiling item templates.\n   * @param {*} item\n   * @returns {Object|undefined}\n   */\n  function getItemAsNameVal (item) {\n    if (!item) {\n      return undefined;\n    }\n\n    var locals = {};\n    if (ctrl.itemName) {\n      locals[ ctrl.itemName ] = item;\n    }\n\n    return locals;\n  }\n\n  /**\n   * Returns the default index based on whether or not autoselect is enabled.\n   * @returns {number} 0 if autoselect is enabled, -1 if not.\n   */\n  function getDefaultIndex () {\n    return $scope.autoselect ? 0 : -1;\n  }\n\n  /**\n   * Sets the loading parameter and updates the hidden state.\n   * @param value {boolean} Whether or not the component is currently loading.\n   */\n  function setLoading(value) {\n    if (ctrl.loading !== value) {\n      ctrl.loading = value;\n    }\n\n    // Always refresh the hidden variable as something else might have changed\n    ctrl.hidden = shouldHide();\n  }\n\n  /**\n   * Determines if the menu should be hidden.\n   * @returns {boolean} true if the menu should be hidden\n   */\n  function shouldHide () {\n    return !shouldShow();\n  }\n\n  /**\n   * Determines whether the autocomplete is able to query within the current state.\n   * @returns {boolean} true if the query can be run\n   */\n  function isSearchable() {\n    if (ctrl.loading && !hasMatches()) {\n      // No query when query is in progress.\n      return false;\n    } else if (hasSelection()) {\n      // No query if there is already a selection\n      return false;\n    }\n    else if (!hasFocus) {\n      // No query if the input does not have focus\n      return false;\n    }\n    return true;\n  }\n\n  /**\n   * @returns {boolean} if the escape keydown should be processed, return true.\n   *  Otherwise return false.\n   */\n  function shouldProcessEscape() {\n    return hasEscapeOption('blur') || !ctrl.hidden || ctrl.loading || hasEscapeOption('clear') && $scope.searchText;\n  }\n\n  /**\n   * @param {string} option check if this option is set\n   * @returns {boolean} if the specified escape option is set, return true. Return false otherwise.\n   */\n  function hasEscapeOption(option) {\n    if (!angular.isString($scope.escapeOptions)) {\n      return ctrl.defaultEscapeOptions.indexOf(option) !== -1;\n    } else {\n      return $scope.escapeOptions.toLowerCase().indexOf(option) !== -1;\n    }\n  }\n\n  /**\n   * Determines if the menu should be shown.\n   * @returns {boolean} true if the menu should be shown\n   */\n  function shouldShow() {\n    if (ctrl.isReadonly) {\n      // Don't show if read only is set\n      return false;\n    } else if (!isSearchable()) {\n      // Don't show if a query is in progress, there is already a selection,\n      // or the input is not focused.\n      return false;\n    }\n    return (isMinLengthMet() && hasMatches()) || notFoundVisible();\n  }\n\n  /**\n   * @returns {boolean} true if the search text has matches.\n   */\n  function hasMatches() {\n    return ctrl.matches.length ? true : false;\n  }\n\n  /**\n   * @returns {boolean} true if the autocomplete has a valid selection.\n   */\n  function hasSelection() {\n    return ctrl.scope.selectedItem ? true : false;\n  }\n\n  /**\n   * @returns {boolean} true if the loading indicator is, or should be, visible.\n   */\n  function loadingIsVisible() {\n    return ctrl.loading && !hasSelection();\n  }\n\n  /**\n   * @returns {*} the display value of the current item.\n   */\n  function getCurrentDisplayValue () {\n    return getDisplayValue(ctrl.matches[ ctrl.index ]);\n  }\n\n  /**\n   * Determines if the minimum length is met by the search text.\n   * @returns {*} true if the minimum length is met by the search text\n   */\n  function isMinLengthMet () {\n    return ($scope.searchText || '').length >= getMinLength();\n  }\n\n  // actions\n\n  /**\n   * Defines a public property with a handler and a default value.\n   * @param {string} key\n   * @param {Function} handler function\n   * @param {*} defaultValue default value\n   */\n  function defineProperty (key, handler, defaultValue) {\n    Object.defineProperty(ctrl, key, {\n      get: function () { return defaultValue; },\n      set: function (newValue) {\n        var oldValue = defaultValue;\n        defaultValue        = newValue;\n        handler(newValue, oldValue);\n      }\n    });\n  }\n\n  /**\n   * Selects the item at the given index.\n   * @param {number} index to select\n   */\n  function select (index) {\n    // force form to update state for validation\n    $mdUtil.nextTick(function () {\n      getDisplayValue(ctrl.matches[ index ]).then(function (val) {\n        var ngModel = elements.$.input.controller('ngModel');\n        $mdLiveAnnouncer.announce(val + ' ' + ctrl.selectedMessage, 'assertive');\n        ngModel.$setViewValue(val);\n        ngModel.$render();\n      }).finally(function () {\n        $scope.selectedItem = ctrl.matches[ index ];\n        setLoading(false);\n      });\n    }, false);\n  }\n\n  /**\n   * Clears the searchText value and selected item.\n   * @param {Event} $event\n   */\n  function clearValue ($event) {\n    if ($event) {\n      $event.stopPropagation();\n    }\n    clearSelectedItem();\n    clearSearchText();\n  }\n\n  /**\n   * Clears the selected item\n   */\n  function clearSelectedItem () {\n    // Reset our variables\n    ctrl.index = -1;\n    $mdUtil.nextTick(updateActiveOption);\n    ctrl.matches = [];\n  }\n\n  /**\n   * Clears the searchText value\n   */\n  function clearSearchText () {\n    // Set the loading to true so we don't see flashes of content.\n    // The flashing will only occur when an async request is running.\n    // So the loading process will stop when the results had been retrieved.\n    setLoading(true);\n\n    $scope.searchText = '';\n\n    // Normally, triggering the change / input event is unnecessary, because the browser detects it properly.\n    // But some browsers are not detecting it properly, which means that we have to trigger the event.\n    // Using the `input` is not working properly, because for example IE11 is not supporting the `input` event.\n    // The `change` event is a good alternative and is supported by all supported browsers.\n    var eventObj = document.createEvent('CustomEvent');\n    eventObj.initCustomEvent('change', true, true, { value: '' });\n    elements.input.dispatchEvent(eventObj);\n\n    // For some reason, firing the above event resets the value of $scope.searchText if\n    // $scope.searchText has a space character at the end, so we blank it one more time and then\n    // focus.\n    elements.input.blur();\n    $scope.searchText = '';\n    elements.input.focus();\n  }\n\n  /**\n   * Fetches the results for the provided search text.\n   * @param searchText\n   */\n  function fetchResults (searchText) {\n    var items = $scope.$parent.$eval(itemExpr),\n        term  = searchText.toLowerCase(),\n        isList = angular.isArray(items),\n        isPromise = !!items.then; // Every promise should contain a `then` property\n\n    if (isList) onResultsRetrieved(items);\n    else if (isPromise) handleAsyncResults(items);\n\n    function handleAsyncResults(items) {\n      if (!items) return;\n\n      items = $q.when(items);\n      fetchesInProgress++;\n      setLoading(true);\n\n      $mdUtil.nextTick(function () {\n          items\n            .then(onResultsRetrieved)\n            .finally(function(){\n              if (--fetchesInProgress === 0) {\n                setLoading(false);\n              }\n            });\n      },true, $scope);\n    }\n\n    function onResultsRetrieved(matches) {\n      cache[term] = matches;\n\n      // Just cache the results if the request is now outdated.\n      // The request becomes outdated, when the new searchText has changed during the result fetching.\n      if ((searchText || '') !== ($scope.searchText || '')) {\n        return;\n      }\n\n      handleResults(matches);\n    }\n  }\n\n\n  /**\n   * Reports given message types to supported screen readers.\n   * @param {boolean} isPolite Whether the announcement should be polite.\n   * @param {!number} types Message flags to be reported to the screen reader.\n   */\n  function reportMessages(isPolite, types) {\n    var politeness = isPolite ? 'polite' : 'assertive';\n    var messages = [];\n\n    if (types & ReportType.Selected && ctrl.index !== -1) {\n      messages.push(getCurrentDisplayValue());\n    }\n\n    if (types & ReportType.Count) {\n      messages.push($q.resolve(getCountMessage()));\n    }\n\n    $q.all(messages).then(function(data) {\n      $mdLiveAnnouncer.announce(data.join(' '), politeness);\n    });\n  }\n\n  /**\n   * @returns {string} the ARIA message for how many results match the current query.\n   */\n  function getCountMessage () {\n    switch (ctrl.matches.length) {\n      case 0:\n        return ctrl.noMatchMessage;\n      case 1:\n        return ctrl.singleMatchMessage;\n      default:\n        return ctrl.multipleMatchStartMessage + ctrl.matches.length + ctrl.multipleMatchEndMessage;\n    }\n  }\n\n  /**\n   * Makes sure that the focused element is within view.\n   */\n  function updateScroll () {\n    if (!elements.li[0]) return;\n    if (mode === MODE_STANDARD) {\n      updateStandardScroll();\n    } else {\n      updateVirtualScroll();\n    }\n  }\n\n  function updateVirtualScroll() {\n    // elements in virtual scroll have consistent heights\n    var optionHeight = elements.li[0].offsetHeight,\n        top = optionHeight * Math.max(0, ctrl.index),\n        bottom = top + optionHeight,\n        containerHeight = elements.scroller.clientHeight,\n        scrollTop = elements.scroller.scrollTop;\n\n    if (top < scrollTop) {\n      scrollTo(top);\n    } else if (bottom > scrollTop + containerHeight) {\n      scrollTo(bottom - containerHeight);\n    }\n  }\n\n  function updateStandardScroll() {\n    // elements in standard scroll have variable heights\n    var selected =  elements.li[Math.max(0, ctrl.index)];\n    var containerHeight = elements.scrollContainer.offsetHeight,\n        top = selected && selected.offsetTop || 0,\n        bottom = top + selected.clientHeight,\n        scrollTop = elements.scrollContainer.scrollTop;\n\n    if (top < scrollTop) {\n      scrollTo(top);\n    } else if (bottom > scrollTop + containerHeight) {\n      scrollTo(bottom - containerHeight);\n    }\n  }\n\n  function isPromiseFetching() {\n    return fetchesInProgress !== 0;\n  }\n\n  function scrollTo (offset) {\n    if (mode === MODE_STANDARD) {\n      elements.scrollContainer.scrollTop = offset;\n    } else {\n      elements.$.scrollContainer.controller('mdVirtualRepeatContainer').scrollTo(offset);\n    }\n  }\n\n  function notFoundVisible () {\n    var textLength = (ctrl.scope.searchText || '').length;\n\n    return ctrl.hasNotFound && !hasMatches() && (!ctrl.loading || isPromiseFetching()) && textLength >= getMinLength() && (hasFocus || noBlur) && !hasSelection();\n  }\n\n  /**\n   * Starts the query to gather the results for the current searchText.  Attempts to return cached\n   * results first, then forwards the process to `fetchResults` if necessary.\n   */\n  function handleQuery () {\n    var searchText = $scope.searchText || '';\n    var term = searchText.toLowerCase();\n\n    // If caching is enabled and the current searchText is stored in the cache\n    if (!$scope.noCache && cache[term]) {\n      // The results should be handled as same as a normal un-cached request does.\n      handleResults(cache[term]);\n    } else {\n      fetchResults(searchText);\n    }\n\n    ctrl.hidden = shouldHide();\n  }\n\n  /**\n   * Handles the retrieved results by showing them in the autocompletes dropdown.\n   * @param results Retrieved results\n   */\n  function handleResults(results) {\n    ctrl.matches = results;\n    ctrl.hidden  = shouldHide();\n\n    // If loading is in progress, then we'll end the progress. This is needed for example,\n    // when the `clear` button was clicked, because there we always show the loading process, to prevent flashing.\n    if (ctrl.loading) setLoading(false);\n\n    if ($scope.selectOnMatch) selectItemOnMatch();\n\n    positionDropdown();\n    reportMessages(true, ReportType.Count);\n  }\n\n  /**\n   * If there is only one matching item and the search text matches its display value exactly,\n   * automatically select that item.  Note: This function is only called if the user uses the\n   * `md-select-on-match` flag.\n   */\n  function selectItemOnMatch () {\n    var searchText = $scope.searchText,\n        matches    = ctrl.matches,\n        item       = matches[ 0 ];\n    if (matches.length === 1) getDisplayValue(item).then(function (displayValue) {\n      var isMatching = searchText === displayValue;\n      if ($scope.matchInsensitive && !isMatching) {\n        isMatching = searchText.toLowerCase() === displayValue.toLowerCase();\n      }\n\n      if (isMatching) {\n        select(0);\n      }\n    });\n  }\n\n  /**\n   * Evaluates an attribute expression against the parent scope.\n   * @param {String} attr Name of the attribute to be evaluated.\n   * @param {Object?} locals Properties to be injected into the evaluation context.\n   */\n function evalAttr(attr, locals) {\n    if ($attrs[attr]) {\n      $scope.$parent.$eval($attrs[attr], locals || {});\n    }\n  }\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n\nMdAutocomplete.$inject = [\"$$mdSvgRegistry\"];angular\n    .module('material.components.autocomplete')\n    .directive('mdAutocomplete', MdAutocomplete);\n\n/**\n * @ngdoc directive\n * @name mdAutocomplete\n * @module material.components.autocomplete\n *\n * @description\n * `<md-autocomplete>` is a special input component with a drop-down of all possible matches to a\n *     custom query. This component allows you to provide real-time suggestions as the user types\n *     in the input area.\n *\n * To start, you will need to specify the required parameters and provide a template for your\n *     results. The content inside `md-autocomplete` will be treated as a template.\n *\n * In more complex cases, you may want to include other content such as a message to display when\n *     no matches were found.  You can do this by wrapping your template in `md-item-template` and\n *     adding a tag for `md-not-found`.  An example of this is shown below.\n *\n * To reset the displayed value you must clear both values for `md-search-text` and\n * `md-selected-item`.\n *\n * ### Validation\n *\n * You can use `ng-messages` to include validation the same way that you would normally validate;\n *     however, if you want to replicate a standard input with a floating label, you will have to\n *     do the following:\n *\n * - Make sure that your template is wrapped in `md-item-template`\n * - Add your `ng-messages` code inside of `md-autocomplete`\n * - Add your validation properties to `md-autocomplete` (ie. `required`)\n * - Add a `name` to `md-autocomplete` (to be used on the generated `input`)\n *\n * There is an example below of how this should look.\n *\n * ### Snapping Drop-Down\n *\n * You can cause the autocomplete drop-down to snap to an ancestor element by applying the\n *     `md-autocomplete-snap` attribute to that element. You can also snap to the width of\n *     the `md-autocomplete-snap` element by setting the attribute's value to `width`\n *     (ie. `md-autocomplete-snap=\"width\"`).\n *\n * ### Notes\n *\n * **Autocomplete Dropdown Items Rendering**\n *\n * The `md-autocomplete` uses the the <a ng-href=\"api/directive/mdVirtualRepeat\">\n *   mdVirtualRepeat</a> directive for displaying the results inside of the dropdown.<br/>\n *\n * > When encountering issues regarding the item template please take a look at the\n *   <a ng-href=\"api/directive/mdVirtualRepeatContainer\">VirtualRepeatContainer</a> documentation.\n *\n * **Autocomplete inside of a Virtual Repeat**\n *\n * When using the `md-autocomplete` directive inside of a\n * <a ng-href=\"api/directive/mdVirtualRepeatContainer\">VirtualRepeatContainer</a> the dropdown items\n * might not update properly, because caching of the results is enabled by default.\n *\n * The autocomplete will then show invalid dropdown items, because the Virtual Repeat only updates\n * the scope bindings rather than re-creating the `md-autocomplete`. This means that the previous\n * cached results will be used.\n *\n * > To avoid such problems, ensure that the autocomplete does not cache any results via\n * `md-no-cache=\"true\"`:\n *\n * <hljs lang=\"html\">\n *   <md-autocomplete\n *       md-no-cache=\"true\"\n *       md-selected-item=\"selectedItem\"\n *       md-items=\"item in items\"\n *       md-search-text=\"searchText\"\n *       md-item-text=\"item.display\">\n *     <span>{{ item.display }}</span>\n *   </md-autocomplete>\n * </hljs>\n *\n *\n * @param {expression} md-items An expression in the format of `item in results` to iterate over\n *     matches for your search.<br/><br/>\n *     The `results` expression can be also a function, which returns the results synchronously\n *     or asynchronously (per Promise).\n * @param {expression=} md-selected-item-change An expression to be run each time a new item is\n *     selected.\n * @param {expression=} md-search-text-change An expression to be run each time the search text\n *     updates.\n * @param {expression=} md-search-text A model to bind the search query text to.\n * @param {object=} md-selected-item A model to bind the selected item to.\n * @param {expression=} md-item-text An expression that will convert your object to a single string.\n * @param {string=} placeholder Placeholder text that will be forwarded to the input.\n * @param {boolean=} md-no-cache Disables the internal caching that happens in autocomplete.\n * @param {boolean=} ng-disabled Determines whether or not to disable the input field.\n * @param {boolean=} md-require-match When set to true, the autocomplete will add a validator,\n *     which will evaluate to false, when no item is currently selected.\n * @param {number=} md-min-length Specifies the minimum length of text before autocomplete will\n *     make suggestions.\n * @param {number=} md-delay Specifies the amount of time (in milliseconds) to wait before looking\n *     for results.\n * @param {boolean=} md-clear-button Whether the clear button for the autocomplete input should show\n *     up or not. When `md-floating-label` is set, defaults to false, defaults to true otherwise.\n * @param {boolean=} md-autofocus If true, the autocomplete will be automatically focused when a\n *     `$mdDialog`, `$mdBottomsheet` or `$mdSidenav`, which contains the autocomplete, is opening.\n *     <br/><br/>\n *     Also the autocomplete will immediately focus the input element.\n * @param {boolean=} md-no-asterisk When present, asterisk will not be appended to the floating\n *     label.\n * @param {boolean=} md-autoselect If set to true, the first item will be automatically selected\n *     in the dropdown upon open.\n * @param {string=} md-input-name The name attribute given to the input element to be used with\n *     FormController.\n * @param {string=} md-menu-class This class will be applied to the dropdown menu for styling.\n * @param {string=} md-menu-container-class This class will be applied to the parent container\n *     of the dropdown panel.\n * @param {string=} md-input-class This will be applied to the input for styling. This attribute\n *     is only valid when a `md-floating-label` is defined.\n * @param {string=} md-floating-label This will add a floating label to autocomplete and wrap it in\n *     `md-input-container`.\n * @param {string=} md-select-on-focus When present the input's text will be automatically selected\n *     on focus.\n * @param {string=} md-input-id An ID to be added to the input element.\n * @param {number=} md-input-minlength The minimum length for the input's value for validation.\n * @param {number=} md-input-maxlength The maximum length for the input's value for validation.\n * @param {boolean=} md-select-on-match When set, autocomplete will automatically select\n *     the item if the search text is an exact match. <br/><br/>\n *     An exact match is when only one match is displayed.\n * @param {boolean=} md-match-case-insensitive When set and using `md-select-on-match`, autocomplete\n *     will select on case-insensitive match.\n * @param {string=} md-escape-options Override escape key logic. Default is `clear`.<br/>\n *     Options: `blur`, `clear`, `none`.\n * @param {string=} md-dropdown-items Specifies the maximum amount of items to be shown in\n *     the dropdown.<br/><br/>\n *     When the dropdown doesn't fit into the viewport, the dropdown will shrink\n *     as much as possible.\n * @param {string=} md-dropdown-position Overrides the default dropdown position. Options: `top`,\n *    `bottom`.\n * @param {string=} input-aria-describedby A space-separated list of element IDs. This should\n *     contain the IDs of any elements that describe this autocomplete. Screen readers will read the\n *     content of these elements at the end of announcing that the autocomplete has been selected\n *     and describing its current state. The descriptive elements do not need to be visible on the\n *     page.\n * @param {string=} input-aria-labelledby A space-separated list of element IDs. The ideal use case\n *     is that this would contain the ID of a `<label>` element that is associated with this\n *     autocomplete. This will only have affect when `md-floating-label` is not defined.<br><br>\n *     For `<label id=\"state\">US State</label>`, you would set this to\n *     `input-aria-labelledby=\"state\"`.\n * @param {string=} input-aria-label A label that will be applied to the autocomplete's input.\n *    This will be announced by screen readers before the placeholder.\n *    This will only have affect when `md-floating-label` is not defined. If you define both\n *    `input-aria-label` and `input-aria-labelledby`, then `input-aria-label` will take precedence.\n * @param {string=} md-selected-message Attribute to specify the text that the screen reader will\n *    announce after a value is selected. Default is: \"selected\". If `Alaska` is selected in the\n *    options panel, it will read \"Alaska selected\". You will want to override this when your app\n *    runs in a non-English locale.\n * @param {string=} md-no-match-message Attribute to specify the text that the screen reader will\n *    announce after a query returns no matching results.\n *    Default is: \"There are no matches available.\". You will want to override this when your app\n *    runs in a non-English locale.\n * @param {string=} md-single-match-message Attribute to specify the text that the screen reader\n *    will announce after a query returns a single matching result.\n *    Default is: \"There is 1 match available.\". You will want to override this when your app\n *    runs in a non-English locale.\n * @param {string=} md-multiple-match-start-message Attribute to specify the text that the screen\n *    reader will announce after a query returns multiple matching results. The number of matching\n *    results will be read after this text. Default is: \"There are \". You will want to override this\n *    when your app runs in a non-English locale.\n * @param {string=} md-multiple-match-end-message Attribute to specify the text that the screen\n *    reader will announce after a query returns multiple matching results. The number of matching\n *    results will be read before this text. Default is: \" matches available.\". You will want to\n *    override this when your app runs in a non-English locale.\n * @param {boolean=} ng-trim If set to false, the search text will be not trimmed automatically.\n *     Defaults to true.\n * @param {string=} ng-pattern Adds the pattern validator to the ngModel of the search text.\n *     See the [ngPattern Directive](https://docs.angularjs.org/api/ng/directive/ngPattern)\n *     for more details.\n * @param {string=} md-mode Specify the repeat mode for suggestion lists. Acceptable values include\n *     `virtual` (md-virtual-repeat) and `standard` (ng-repeat). See the\n *     `Specifying Repeat Mode` example for mode details. Default is `virtual`.\n *\n * @usage\n * ### Basic Example\n * <hljs lang=\"html\">\n *   <md-autocomplete\n *       md-selected-item=\"selectedItem\"\n *       md-search-text=\"searchText\"\n *       md-items=\"item in getMatches(searchText)\"\n *       md-item-text=\"item.display\">\n *     <span md-highlight-text=\"searchText\">{{item.display}}</span>\n *   </md-autocomplete>\n * </hljs>\n *\n * ### Example with \"not found\" message\n * <hljs lang=\"html\">\n * <md-autocomplete\n *     md-selected-item=\"selectedItem\"\n *     md-search-text=\"searchText\"\n *     md-items=\"item in getMatches(searchText)\"\n *     md-item-text=\"item.display\">\n *   <md-item-template>\n *     <span md-highlight-text=\"searchText\">{{item.display}}</span>\n *   </md-item-template>\n *   <md-not-found>\n *     No matches found.\n *   </md-not-found>\n * </md-autocomplete>\n * </hljs>\n *\n * In this example, our code utilizes `md-item-template` and `md-not-found` to specify the\n *     different parts that make up our component.\n *\n * ### Clear button for the input\n * By default, the clear button is displayed when there is input. This aligns with the spec's\n * [Search Pattern](https://material.io/archive/guidelines/patterns/search.html#search-in-app-search).\n * In floating label mode, when `md-floating-label=\"My Label\"` is applied, the clear button is not\n * displayed by default (see the spec's\n * [Autocomplete Text Field](https://material.io/archive/guidelines/components/text-fields.html#text-fields-layout)).\n *\n * Nevertheless, developers are able to explicitly toggle the clear button for all autocomplete\n * components with `md-clear-button`.\n *\n * <hljs lang=\"html\">\n *   <md-autocomplete ... md-clear-button=\"true\"></md-autocomplete>\n *   <md-autocomplete ... md-clear-button=\"false\"></md-autocomplete>\n * </hljs>\n *\n * In previous versions, the clear button was always hidden when the component was disabled.\n * This changed in `1.1.5` to give the developer control of this behavior. This example\n * will hide the clear button only when the component is disabled.\n *\n * <hljs lang=\"html\">\n *   <md-autocomplete ... ng-disabled=\"disabled\" md-clear-button=\"!disabled\"></md-autocomplete>\n * </hljs>\n *\n * ### Example with validation\n * <hljs lang=\"html\">\n * <form name=\"autocompleteForm\">\n *   <md-autocomplete\n *       required\n *       md-input-name=\"autocomplete\"\n *       md-selected-item=\"selectedItem\"\n *       md-search-text=\"searchText\"\n *       md-items=\"item in getMatches(searchText)\"\n *       md-item-text=\"item.display\">\n *     <md-item-template>\n *       <span md-highlight-text=\"searchText\">{{item.display}}</span>\n *     </md-item-template>\n *     <div ng-messages=\"autocompleteForm.autocomplete.$error\">\n *       <div ng-message=\"required\">This field is required</div>\n *     </div>\n *   </md-autocomplete>\n * </form>\n * </hljs>\n *\n * In this example, our code utilizes `md-item-template` and `ng-messages` to specify\n *     input validation for the field.\n *\n * ### Asynchronous Results\n * The autocomplete items expression also supports promises, which will resolve with the query\n * results.\n *\n * <hljs lang=\"js\">\n *   function AppController($scope, $http) {\n *     $scope.query = function(searchText) {\n *       return $http\n *         .get(BACKEND_URL + '/items/' + searchText)\n *         .then(function(data) {\n *           // Map the response object to the data object.\n *           return data;\n *         });\n *     };\n *   }\n * </hljs>\n *\n * <hljs lang=\"html\">\n *   <md-autocomplete\n *       md-selected-item=\"selectedItem\"\n *       md-search-text=\"searchText\"\n *       md-items=\"item in query(searchText)\">\n *     <md-item-template>\n *       <span md-highlight-text=\"searchText\">{{item}}</span>\n *     </md-item-template>\n * </md-autocomplete>\n * </hljs>\n *\n * ### Specifying Repeat Mode\n * You can use `md-mode` to specify whether to use standard or virtual lists for\n * rendering autocomplete options.\n * The `md-mode` accepts two values:\n * - `virtual` (default) Uses `md-virtual-repeat` to render list items. Virtual\n *    mode requires you to have consistent heights for all suggestions.\n * - `standard` uses `ng-repeat` to render list items. This allows you to have\n *    options of varying heights.\n *\n * Note that using 'standard' mode will require you to address any list\n * performance issues (e.g. pagination) separately within your application.\n *\n * <hljs lang=\"html\">\n *   <md-autocomplete\n *       md-selected-item=\"selectedItem\"\n *       md-search-text=\"searchText\"\n *       md-items=\"item in getMatches(searchText)\"\n *       md-item-text=\"item.display\"\n *       md-mode=\"standard\">\n *     <span md-highlight-text=\"searchText\">{{item.display}}</span>\n *   </md-autocomplete>\n * </hljs>\n */\nfunction MdAutocomplete ($$mdSvgRegistry) {\n  var REPEAT_STANDARD = 'standard';\n  var REPEAT_VIRTUAL = 'virtual';\n  var REPEAT_MODES = [REPEAT_STANDARD, REPEAT_VIRTUAL];\n\n  /** get a valid repeat mode from an md-mode attribute string. */\n  function getRepeatMode(modeStr) {\n    if (!modeStr) { return REPEAT_VIRTUAL; }\n    modeStr = modeStr.toLowerCase();\n    return  REPEAT_MODES.indexOf(modeStr) > -1 ? modeStr : REPEAT_VIRTUAL;\n  }\n\n  return {\n    controller:   'MdAutocompleteCtrl',\n    controllerAs: '$mdAutocompleteCtrl',\n    scope:        {\n      inputName:          '@mdInputName',\n      inputMinlength:     '@mdInputMinlength',\n      inputMaxlength:     '@mdInputMaxlength',\n      searchText:         '=?mdSearchText',\n      selectedItem:       '=?mdSelectedItem',\n      itemsExpr:          '@mdItems',\n      itemText:           '&mdItemText',\n      placeholder:        '@placeholder',\n      inputAriaDescribedBy: '@?inputAriaDescribedby',\n      inputAriaLabelledBy: '@?inputAriaLabelledby',\n      inputAriaLabel:     '@?inputAriaLabel',\n      noCache:            '=?mdNoCache',\n      requireMatch:       '=?mdRequireMatch',\n      selectOnMatch:      '=?mdSelectOnMatch',\n      matchInsensitive:   '=?mdMatchCaseInsensitive',\n      itemChange:         '&?mdSelectedItemChange',\n      textChange:         '&?mdSearchTextChange',\n      minLength:          '=?mdMinLength',\n      delay:              '=?mdDelay',\n      autofocus:          '=?mdAutofocus',\n      floatingLabel:      '@?mdFloatingLabel',\n      autoselect:         '=?mdAutoselect',\n      menuClass:          '@?mdMenuClass',\n      menuContainerClass: '@?mdMenuContainerClass',\n      inputClass:         '@?mdInputClass',\n      inputId:            '@?mdInputId',\n      escapeOptions:      '@?mdEscapeOptions',\n      dropdownItems:      '=?mdDropdownItems',\n      dropdownPosition:   '@?mdDropdownPosition',\n      clearButton:        '=?mdClearButton',\n      selectedMessage:    '@?mdSelectedMessage',\n      noMatchMessage:     '@?mdNoMatchMessage',\n      singleMatchMessage: '@?mdSingleMatchMessage',\n      multipleMatchStartMessage: '@?mdMultipleMatchStartMessage',\n      multipleMatchEndMessage: '@?mdMultipleMatchEndMessage',\n      mdMode: '=?mdMode'\n    },\n    compile: function(tElement, tAttrs) {\n      var attributes = ['md-select-on-focus', 'md-no-asterisk', 'ng-trim', 'ng-pattern'];\n      var input = tElement.find('input');\n\n      attributes.forEach(function(attribute) {\n        var attrValue = tAttrs[tAttrs.$normalize(attribute)];\n\n        if (attrValue !== null) {\n          input.attr(attribute, attrValue);\n        }\n      });\n\n      return function(scope, element, attrs, ctrl) {\n        // Retrieve the state of using a md-not-found template by using our attribute, which will\n        // be added to the element in the template function.\n        ctrl.hasNotFound = !!element.attr('md-has-not-found');\n\n        // By default the inset autocomplete should show the clear button when not explicitly\n        // overwritten or in floating label mode.\n        if (!angular.isDefined(attrs.mdClearButton) && !scope.floatingLabel) {\n          scope.clearButton = true;\n        }\n\n        scope.mdMode = getRepeatMode(attrs.mdMode);\n\n        // Stop click events from bubbling up to the document and triggering a flicker of the\n        // options panel while still supporting ng-click to be placed on md-autocomplete.\n        element.on('click touchstart touchend', function(event) {\n          event.stopPropagation();\n        });\n      };\n    },\n    template: function (element, attr) {\n      var noItemsTemplate = getNoItemsTemplate(),\n          itemTemplate    = getItemTemplate(),\n          leftover        = element.html(),\n          tabindex        = attr.tabindex;\n\n      // Set our attribute for the link function above which runs later.\n      // We will set an attribute, because otherwise the stored variables will be trashed when\n      // removing the element is hidden while retrieving the template. For example when using ngIf.\n      if (noItemsTemplate) element.attr('md-has-not-found', true);\n\n      // Always set our tabindex of the autocomplete directive to -1, because our input\n      // will hold the actual tabindex.\n      element.attr('tabindex', '-1');\n\n      return '\\\n        <md-autocomplete-wrap\\\n            ng-class=\"{ \\'md-whiteframe-z1\\': !floatingLabel, \\\n                        \\'md-menu-showing\\': !$mdAutocompleteCtrl.hidden, \\\n                        \\'md-show-clear-button\\': !!clearButton }\">\\\n          ' + getInputElement() + '\\\n          ' + getClearButton() + '\\\n          <md-progress-linear\\\n              class=\"' + (attr.mdFloatingLabel ? 'md-inline' : '') + '\"\\\n              ng-if=\"$mdAutocompleteCtrl.loadingIsVisible()\"\\\n              md-mode=\"indeterminate\"></md-progress-linear>\\\n          ' + getContainer(attr.mdMenuContainerClass, attr.mdMode) + '\\\n            <ul class=\"md-autocomplete-suggestions\"\\\n                ng-class=\"::menuClass\"\\\n                id=\"ul-{{$mdAutocompleteCtrl.id}}\"\\\n                ng-mouseup=\"$mdAutocompleteCtrl.focusInput()\"\\\n                role=\"listbox\">\\\n              <li class=\"md-autocomplete-suggestion\" ' + getRepeatType(attr.mdMode) + ' =\"item in $mdAutocompleteCtrl.matches\"\\\n                  ng-class=\"{ selected: $index === $mdAutocompleteCtrl.index }\"\\\n                  ng-attr-id=\"{{\\'md-option-\\' + $mdAutocompleteCtrl.id + \\'-\\' + $index}}\"\\\n                  ng-click=\"$mdAutocompleteCtrl.select($index)\"\\\n                  role=\"option\"\\\n                  aria-setsize=\"{{$mdAutocompleteCtrl.matches.length}}\"\\\n                  aria-posinset=\"{{$index+1}}\"\\\n                  aria-selected=\"{{$index === $mdAutocompleteCtrl.index ? true : false}}\" \\\n                  md-extra-name=\"$mdAutocompleteCtrl.itemName\">\\\n                  ' + itemTemplate + '\\\n                  </li>' + noItemsTemplate + '\\\n            </ul>\\\n          '  + getContainerClosingTags(attr.mdMode) + '\\\n        </md-autocomplete-wrap>';\n\n      function getItemTemplate() {\n        var templateTag = element.find('md-item-template').detach(),\n            html = templateTag.length ? templateTag.html() : element.html();\n        if (!templateTag.length) element.empty();\n        return '<md-autocomplete-parent-scope md-autocomplete-replace>' + html +\n               '</md-autocomplete-parent-scope>';\n      }\n\n      function getNoItemsTemplate() {\n        var templateTag = element.find('md-not-found').detach(),\n            template = templateTag.length ? templateTag.html() : '';\n        return template\n            ? '<li ng-if=\"$mdAutocompleteCtrl.notFoundVisible()\" class=\"md-autocomplete-suggestion\"\\\n                         md-autocomplete-parent-scope>' + template + '</li>'\n            : '';\n      }\n\n      function getContainer(menuContainerClass, repeatMode) {\n        // prepend a space if needed\n        menuContainerClass = menuContainerClass ? ' ' + menuContainerClass : '';\n\n        if (isVirtualRepeatDisabled(repeatMode)) {\n          return '\\\n            <div \\\n                ng-hide=\"$mdAutocompleteCtrl.hidden\"\\\n                class=\"md-standard-list-container md-autocomplete-suggestions-container md-whiteframe-z1' + menuContainerClass + '\"\\\n                ng-class=\"{ \\'md-not-found\\': $mdAutocompleteCtrl.notFoundVisible() }\"\\\n                ng-mouseenter=\"$mdAutocompleteCtrl.listEnter()\"\\\n                ng-mouseleave=\"$mdAutocompleteCtrl.listLeave()\"\\\n                role=\"presentation\">\\\n              <div class=\"md-standard-list-scroller\" role=\"presentation\">';\n        }\n\n        return '\\\n          <md-virtual-repeat-container\\\n              md-auto-shrink\\\n              md-auto-shrink-min=\"1\"\\\n              ng-hide=\"$mdAutocompleteCtrl.hidden\"\\\n              class=\"md-virtual-repeat-container md-autocomplete-suggestions-container md-whiteframe-z1' + menuContainerClass + '\"\\\n              ng-class=\"{ \\'md-not-found\\': $mdAutocompleteCtrl.notFoundVisible() }\"\\\n              ng-mouseenter=\"$mdAutocompleteCtrl.listEnter()\"\\\n              ng-mouseleave=\"$mdAutocompleteCtrl.listLeave()\"\\\n              role=\"presentation\">';\n      }\n\n      function getContainerClosingTags(repeatMode) {\n        return isVirtualRepeatDisabled(repeatMode) ?\n            '   </div>\\\n              </div>\\\n            </div>' : '</md-virtual-repeat-container>';\n      }\n\n      function getRepeatType(repeatMode) {\n        return isVirtualRepeatDisabled(repeatMode)  ?\n          'ng-repeat' : 'md-virtual-repeat';\n      }\n\n      function isVirtualRepeatDisabled(repeatMode) {\n        // ensure we have a valid repeat mode\n        var correctedRepeatMode = getRepeatMode(repeatMode);\n        return correctedRepeatMode !== REPEAT_VIRTUAL;\n      }\n\n      function getInputElement () {\n        if (attr.mdFloatingLabel) {\n          return '\\\n            <md-input-container ng-if=\"floatingLabel\">\\\n              <label>{{floatingLabel}}</label>\\\n              <input type=\"text\"\\\n                ' + (tabindex != null ? 'tabindex=\"' + tabindex + '\"' : '') + '\\\n                id=\"{{inputId || \\'fl-input-\\' + $mdAutocompleteCtrl.id}}\"\\\n                name=\"{{inputName || \\'fl-input-\\' + $mdAutocompleteCtrl.id }}\"\\\n                ng-class=\"::inputClass\"\\\n                autocomplete=\"off\"\\\n                ng-required=\"$mdAutocompleteCtrl.isRequired\"\\\n                ng-readonly=\"$mdAutocompleteCtrl.isReadonly\"\\\n                ng-minlength=\"inputMinlength\"\\\n                ng-maxlength=\"inputMaxlength\"\\\n                ng-disabled=\"$mdAutocompleteCtrl.isDisabled\"\\\n                ng-model=\"$mdAutocompleteCtrl.scope.searchText\"\\\n                ng-model-options=\"{ allowInvalid: true }\"\\\n                ng-mousedown=\"$mdAutocompleteCtrl.focusInput()\"\\\n                ng-keydown=\"$mdAutocompleteCtrl.keydown($event)\"\\\n                ng-blur=\"$mdAutocompleteCtrl.blur($event)\"\\\n                ng-focus=\"$mdAutocompleteCtrl.focus($event)\"\\\n                aria-label=\"{{floatingLabel}}\"\\\n                ng-attr-aria-autocomplete=\"{{$mdAutocompleteCtrl.isDisabled ? undefined : \\'list\\'}}\"\\\n                ng-attr-role=\"{{$mdAutocompleteCtrl.isDisabled ? undefined : \\'combobox\\'}}\"\\\n                aria-haspopup=\"{{!$mdAutocompleteCtrl.isDisabled}}\"\\\n                aria-expanded=\"{{!$mdAutocompleteCtrl.hidden}}\"\\\n                ng-attr-aria-owns=\"{{$mdAutocompleteCtrl.hidden || $mdAutocompleteCtrl.isDisabled ? undefined : \\'ul-\\' + $mdAutocompleteCtrl.id}}\"\\\n                ng-attr-aria-activedescendant=\"{{!$mdAutocompleteCtrl.hidden && $mdAutocompleteCtrl.activeOption ? $mdAutocompleteCtrl.activeOption : undefined}}\">\\\n              <div md-autocomplete-parent-scope md-autocomplete-replace>' + leftover + '</div>\\\n            </md-input-container>';\n        } else {\n          return '\\\n            <input type=\"text\"\\\n              ' + (tabindex != null ? 'tabindex=\"' + tabindex + '\"' : '') + '\\\n              id=\"{{inputId || \\'input-\\' + $mdAutocompleteCtrl.id}}\"\\\n              name=\"{{inputName || \\'input-\\' + $mdAutocompleteCtrl.id }}\"\\\n              ng-class=\"::inputClass\"\\\n              ng-if=\"!floatingLabel\"\\\n              autocomplete=\"off\"\\\n              ng-required=\"$mdAutocompleteCtrl.isRequired\"\\\n              ng-disabled=\"$mdAutocompleteCtrl.isDisabled\"\\\n              ng-readonly=\"$mdAutocompleteCtrl.isReadonly\"\\\n              ng-minlength=\"inputMinlength\"\\\n              ng-maxlength=\"inputMaxlength\"\\\n              ng-model=\"$mdAutocompleteCtrl.scope.searchText\"\\\n              ng-mousedown=\"$mdAutocompleteCtrl.focusInput()\"\\\n              ng-keydown=\"$mdAutocompleteCtrl.keydown($event)\"\\\n              ng-blur=\"$mdAutocompleteCtrl.blur($event)\"\\\n              ng-focus=\"$mdAutocompleteCtrl.focus($event)\"\\\n              placeholder=\"{{placeholder}}\"\\\n              aria-label=\"{{placeholder}}\"\\\n              ng-attr-aria-autocomplete=\"{{$mdAutocompleteCtrl.isDisabled ? undefined : \\'list\\'}}\"\\\n              ng-attr-role=\"{{$mdAutocompleteCtrl.isDisabled ? undefined : \\'combobox\\'}}\"\\\n              aria-haspopup=\"{{!$mdAutocompleteCtrl.isDisabled}}\"\\\n              aria-expanded=\"{{!$mdAutocompleteCtrl.hidden}}\"\\\n              ng-attr-aria-owns=\"{{$mdAutocompleteCtrl.hidden || $mdAutocompleteCtrl.isDisabled ? undefined : \\'ul-\\' + $mdAutocompleteCtrl.id}}\"\\\n              ng-attr-aria-activedescendant=\"{{!$mdAutocompleteCtrl.hidden && $mdAutocompleteCtrl.activeOption ? $mdAutocompleteCtrl.activeOption : undefined}}\">';\n        }\n      }\n\n      function getClearButton() {\n        return '' +\n          '<button ' +\n              'type=\"button\" ' +\n              'aria-label=\"Clear Input\" ' +\n              'tabindex=\"0\" ' +\n              'ng-if=\"clearButton && $mdAutocompleteCtrl.scope.searchText\" ' +\n              'ng-click=\"$mdAutocompleteCtrl.clear($event)\">' +\n            '<md-icon md-svg-src=\"' + $$mdSvgRegistry.mdClose + '\"></md-icon>' +\n          '</button>';\n        }\n    }\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n\nMdAutocompleteItemScopeDirective.$inject = [\"$compile\", \"$mdUtil\"];angular\n  .module('material.components.autocomplete')\n  .directive('mdAutocompleteParentScope', MdAutocompleteItemScopeDirective);\n\nfunction MdAutocompleteItemScopeDirective($compile, $mdUtil) {\n  return {\n    restrict: 'AE',\n    compile: compile,\n    terminal: true,\n    transclude: 'element'\n  };\n\n  function compile(tElement, tAttr, transclude) {\n    return function postLink(scope, element, attr) {\n      var ctrl = scope.$mdAutocompleteCtrl;\n      var newScope = ctrl.parent.$new();\n      var itemName = ctrl.itemName;\n\n      // Watch for changes to our scope's variables and copy them to the new scope\n      watchVariable('$index', '$index');\n      watchVariable('item', itemName);\n\n      // Ensure that $digest calls on our scope trigger $digest on newScope.\n      connectScopes();\n\n      // Link the element against newScope.\n      transclude(newScope, function(clone) {\n        element.after(clone);\n      });\n\n      /**\n       * Creates a watcher for variables that are copied from the parent scope\n       * @param variable\n       * @param alias\n       */\n      function watchVariable(variable, alias) {\n        newScope[alias] = scope[variable];\n\n        scope.$watch(variable, function(value) {\n          $mdUtil.nextTick(function() {\n            newScope[alias] = value;\n          });\n        });\n      }\n\n      /**\n       * Creates watchers on scope and newScope that ensure that for any\n       * $digest of scope, newScope is also $digested.\n       */\n      function connectScopes() {\n        var scopeDigesting = false;\n        var newScopeDigesting = false;\n\n        scope.$watch(function() {\n          if (newScopeDigesting || scopeDigesting) {\n            return;\n          }\n\n          scopeDigesting = true;\n          scope.$$postDigest(function() {\n            if (!newScopeDigesting) {\n              newScope.$digest();\n            }\n\n            scopeDigesting = newScopeDigesting = false;\n          });\n        });\n\n        newScope.$watch(function() {\n          newScopeDigesting = true;\n        });\n      }\n    };\n  }\n}\n})();\n(function(){\n\"use strict\";\n\n\nMdHighlightCtrl.$inject = [\"$scope\", \"$element\", \"$attrs\", \"$mdUtil\"];angular\n    .module('material.components.autocomplete')\n    .controller('MdHighlightCtrl', MdHighlightCtrl);\n\nfunction MdHighlightCtrl ($scope, $element, $attrs, $mdUtil) {\n  this.$scope = $scope;\n  this.$element = $element;\n  this.$attrs = $attrs;\n  this.$mdUtil = $mdUtil;\n\n  // Cache the Regex to avoid rebuilding each time.\n  this.regex = null;\n}\n\nMdHighlightCtrl.prototype.init = function(unsafeTermFn, unsafeContentFn) {\n\n  this.flags = this.$attrs.mdHighlightFlags || '';\n\n  this.unregisterFn = this.$scope.$watch(function($scope) {\n    return {\n      term: unsafeTermFn($scope),\n      contentText: unsafeContentFn($scope)\n    };\n  }.bind(this), this.onRender.bind(this), true);\n\n  this.$element.on('$destroy', this.unregisterFn);\n};\n\n/**\n * Triggered once a new change has been recognized and the highlighted\n * text needs to be updated.\n */\nMdHighlightCtrl.prototype.onRender = function(state, prevState) {\n\n  var contentText = state.contentText;\n\n  /* Update the regex if it's outdated, because we don't want to rebuilt it constantly. */\n  if (this.regex === null || state.term !== prevState.term) {\n    this.regex = this.createRegex(state.term, this.flags);\n  }\n\n  /* If a term is available apply the regex to the content */\n  if (state.term) {\n    this.applyRegex(contentText);\n  } else {\n    this.$element.text(contentText);\n  }\n\n};\n\n/**\n * Decomposes the specified text into different tokens (whether match or not).\n * Breaking down the string guarantees proper XSS protection due to the native browser\n * escaping of unsafe text.\n */\nMdHighlightCtrl.prototype.applyRegex = function(text) {\n  var tokens = this.resolveTokens(text);\n\n  this.$element.empty();\n\n  tokens.forEach(function (token) {\n\n    if (token.isMatch) {\n      var tokenEl = angular.element('<span class=\"highlight\">').text(token.text);\n\n      this.$element.append(tokenEl);\n    } else {\n      this.$element.append(document.createTextNode(token));\n    }\n\n  }.bind(this));\n\n};\n\n  /**\n * Decomposes the specified text into different tokens by running the regex against the text.\n */\nMdHighlightCtrl.prototype.resolveTokens = function(string) {\n  var tokens = [];\n  var lastIndex = 0;\n\n  // Use replace here, because it supports global and single regular expressions at same time.\n  string.replace(this.regex, function(match, index) {\n    appendToken(lastIndex, index);\n\n    tokens.push({\n      text: match,\n      isMatch: true\n    });\n\n    lastIndex = index + match.length;\n  });\n\n  // Append the missing text as a token.\n  appendToken(lastIndex);\n\n  return tokens;\n\n  function appendToken(from, to) {\n    var targetText = string.slice(from, to);\n    targetText && tokens.push(targetText);\n  }\n};\n\n/** Creates a regex for the specified text with the given flags. */\nMdHighlightCtrl.prototype.createRegex = function(term, flags) {\n  var startFlag = '', endFlag = '';\n  var regexTerm = this.$mdUtil.sanitize(term);\n\n  if (flags.indexOf('^') >= 0) startFlag = '^';\n  if (flags.indexOf('$') >= 0) endFlag = '$';\n\n  return new RegExp(startFlag + regexTerm + endFlag, flags.replace(/[$^]/g, ''));\n};\n\n})();\n(function(){\n\"use strict\";\n\n\nMdHighlight.$inject = [\"$interpolate\", \"$parse\"];angular\n    .module('material.components.autocomplete')\n    .directive('mdHighlightText', MdHighlight);\n\n/**\n * @ngdoc directive\n * @name mdHighlightText\n * @module material.components.autocomplete\n *\n * @description\n * The `md-highlight-text` directive allows you to specify text that should be highlighted within\n *     an element.  Highlighted text will be wrapped in `<span class=\"highlight\"></span>` which can\n *     be styled through CSS.  Please note that child elements may not be used with this directive.\n *\n * @param {string} md-highlight-text A model to be searched for\n * @param {string=} md-highlight-flags A list of flags (loosely based on JavaScript RexExp flags).\n * #### **Supported flags**:\n * - `g`: Find all matches within the provided text\n * - `i`: Ignore case when searching for matches\n * - `$`: Only match if the text ends with the search term\n * - `^`: Only match if the text begins with the search term\n *\n * @usage\n * <hljs lang=\"html\">\n * <input placeholder=\"Enter a search term...\" ng-model=\"searchTerm\" type=\"text\" />\n * <ul>\n *   <li ng-repeat=\"result in results\" md-highlight-text=\"searchTerm\" md-highlight-flags=\"i\">\n *     {{result.text}}\n *   </li>\n * </ul>\n * </hljs>\n */\n\nfunction MdHighlight ($interpolate, $parse) {\n  return {\n    terminal: true,\n    controller: 'MdHighlightCtrl',\n    compile: function mdHighlightCompile(tElement, tAttr) {\n      var termExpr = $parse(tAttr.mdHighlightText);\n      var unsafeContentExpr = $interpolate(tElement.html());\n\n      return function mdHighlightLink(scope, element, attr, ctrl) {\n        ctrl.init(termExpr, unsafeContentExpr);\n      };\n    }\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n/*\n * @ngdoc module\n * @name material.components.backdrop\n * @description Backdrop\n */\n\n/**\n * @ngdoc directive\n * @name mdBackdrop\n * @module material.components.backdrop\n *\n * @restrict E\n *\n * @description\n * `<md-backdrop>` is a backdrop element used by other components, such as dialog and bottom sheet.\n * Apply class `opaque` to make the backdrop use the theme backdrop color.\n *\n */\n\nangular\n  .module('material.components.backdrop', ['material.core'])\n  .directive('mdBackdrop', [\"$mdTheming\", \"$mdUtil\", \"$animate\", \"$rootElement\", \"$window\", \"$log\", \"$$rAF\", \"$document\", function BackdropDirective($mdTheming, $mdUtil, $animate, $rootElement, $window, $log, $$rAF, $document) {\n    var ERROR_CSS_POSITION = '<md-backdrop> may not work properly in a scrolled, static-positioned parent container.';\n\n    return {\n      restrict: 'E',\n      link: postLink\n    };\n\n    function postLink(scope, element, attrs) {\n      // backdrop may be outside the $rootElement, tell ngAnimate to animate regardless\n      if ($animate.pin) $animate.pin(element, $rootElement);\n\n      var bodyStyles;\n\n      $$rAF(function() {\n        // If body scrolling has been disabled using mdUtil.disableBodyScroll(),\n        // adjust the 'backdrop' height to account for the fixed 'body' top offset.\n        // Note that this can be pretty expensive and is better done inside the $$rAF.\n        bodyStyles = $window.getComputedStyle($document[0].body);\n\n        if (bodyStyles.position === 'fixed') {\n          var resizeHandler = $mdUtil.debounce(function(){\n            bodyStyles = $window.getComputedStyle($document[0].body);\n            resize();\n          }, 60, null, false);\n\n          resize();\n          angular.element($window).on('resize', resizeHandler);\n\n          scope.$on('$destroy', function() {\n            angular.element($window).off('resize', resizeHandler);\n          });\n        }\n\n        // Often $animate.enter() is used to append the backDrop element\n        // so let's wait until $animate is done...\n        var parent = element.parent();\n\n        if (parent.length) {\n          if (parent[0].nodeName === 'BODY') {\n            element.css('position', 'fixed');\n          }\n\n          var styles = $window.getComputedStyle(parent[0]);\n\n          if (styles.position === 'static') {\n            // backdrop uses position:absolute and will not work properly with parent position:static (default)\n            $log.warn(ERROR_CSS_POSITION);\n          }\n\n          // Only inherit the parent if the backdrop has a parent.\n          $mdTheming.inherit(element, parent);\n        }\n      });\n\n      function resize() {\n        var viewportHeight = parseInt(bodyStyles.height, 10) + Math.abs(parseInt(bodyStyles.top, 10));\n        element.css('height', viewportHeight + 'px');\n      }\n    }\n\n  }]);\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.bottomSheet\n * @description\n * BottomSheet\n */\nMdBottomSheetDirective.$inject = [\"$mdBottomSheet\"];\nMdBottomSheetProvider.$inject = [\"$$interimElementProvider\"];\nangular\n  .module('material.components.bottomSheet', [\n    'material.core',\n    'material.components.backdrop'\n  ])\n  .directive('mdBottomSheet', MdBottomSheetDirective)\n  .provider('$mdBottomSheet', MdBottomSheetProvider);\n\n/* @ngInject */\nfunction MdBottomSheetDirective($mdBottomSheet) {\n  return {\n    restrict: 'E',\n    link : function postLink(scope, element) {\n      element.addClass('_md');     // private md component indicator for styling\n\n      // When navigation force destroys an interimElement, then\n      // listen and $destroy() that interim instance...\n      scope.$on('$destroy', function() {\n        $mdBottomSheet.destroy();\n      });\n    }\n  };\n}\n\n\n/**\n * @ngdoc service\n * @name $mdBottomSheet\n * @module material.components.bottomSheet\n *\n * @description\n * `$mdBottomSheet` opens a bottom sheet over the app and provides a simple promise API.\n *\n * ## Restrictions\n *\n * - The bottom sheet's template must have an outer `<md-bottom-sheet>` element.\n * - Add the `md-grid` class to the bottom sheet for a grid layout.\n * - Add the `md-list` class to the bottom sheet for a list layout.\n *\n * @usage\n * <hljs lang=\"html\">\n * <div ng-controller=\"MyController\">\n *   <md-button ng-click=\"openBottomSheet()\">\n *     Open a Bottom Sheet!\n *   </md-button>\n * </div>\n * </hljs>\n * <hljs lang=\"js\">\n * var app = angular.module('app', ['ngMaterial']);\n * app.controller('MyController', function($scope, $mdBottomSheet) {\n *   $scope.openBottomSheet = function() {\n *     $mdBottomSheet.show({\n *       template: '<md-bottom-sheet>' +\n *       'Hello! <md-button ng-click=\"closeBottomSheet()\">Close</md-button>' +\n *       '</md-bottom-sheet>'\n *     })\n *\n *     // Fires when the hide() method is used\n *     .then(function() {\n *       console.log('You clicked the button to close the bottom sheet!');\n *     })\n *\n *     // Fires when the cancel() method is used\n *     .catch(function() {\n *       console.log('You hit escape or clicked the backdrop to close.');\n *     });\n *   };\n *\n *   $scope.closeBottomSheet = function($scope, $mdBottomSheet) {\n *     $mdBottomSheet.hide();\n *   }\n *\n * });\n * </hljs>\n *\n * ### Custom Presets\n * Developers are also able to create their own preset, which can be easily used without repeating\n * their options each time.\n *\n * <hljs lang=\"js\">\n *   $mdBottomSheetProvider.addPreset('testPreset', {\n *     options: function() {\n *       return {\n *         template:\n *           '<md-bottom-sheet>' +\n *             'This is a custom preset' +\n *           '</md-bottom-sheet>',\n *         controllerAs: 'bottomSheet',\n *         bindToController: true,\n *         clickOutsideToClose: true,\n *         escapeToClose: true\n *       };\n *     }\n *   });\n * </hljs>\n *\n * After you create your preset during the config phase, you can easily access it.\n *\n * <hljs lang=\"js\">\n *   $mdBottomSheet.show(\n *     $mdBottomSheet.testPreset()\n *   );\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name $mdBottomSheet#show\n *\n * @description\n * Show a bottom sheet with the specified options.\n *\n * <em><b>Note:</b> You should <b>always</b> provide a `.catch()` method in case the user hits the\n * `esc` key or clicks the background to close. In this case, the `cancel()` method will\n * automatically be called on the bottom sheet which will `reject()` the promise. See the @usage\n * section above for an example.\n *\n * Newer versions of Angular will throw a `Possibly unhandled rejection` exception if you forget\n * this.</em>\n *\n * @param {Object} optionsOrPreset Either provide an `$mdBottomSheetPreset` defined during the\n * config phase or an options object, with the following properties:\n *\n *   - `templateUrl` - `{string=}`: The url of an html template file that will\n *   be used as the content of the bottom sheet. Restrictions: the template must\n *   have an outer `md-bottom-sheet` element.\n *   - `template` - `{string=}`: Same as templateUrl, except this is an actual\n *   template string.\n *   - `scope` - `{Object=}`: the scope to link the template / controller to. If none is specified,\n *   it will create a new child scope. This scope will be destroyed when the bottom sheet is\n *   removed unless `preserveScope` is set to true.\n *   - `preserveScope` - `{boolean=}`: whether to preserve the scope when the element is removed.\n *   Default is false\n *   - `controller` - `{string=}`: The controller to associate with this bottom sheet.\n *   - `locals` - `{string=}`: An object containing key/value pairs. The keys will be used as names\n *   of values to inject into the controller. For example, `locals: {three: 3}` would inject\n *   `three` into the controller with the value of 3.\n *   - `clickOutsideToClose` - `{boolean=}`: Whether the user can click outside the bottom sheet to\n *     close it. Default true.\n *   - `bindToController` - `{boolean=}`: When set to true, the locals will be bound to the\n *   controller instance and available in it's $onInit function.\n *   - `disableBackdrop` - `{boolean=}`: When set to true, the bottomsheet will not show a backdrop.\n *   - `escapeToClose` - `{boolean=}`: Whether the user can press escape to close the bottom sheet.\n *     Default true.\n *   - `isLockedOpen` - `{boolean=}`: Disables all default ways of closing the bottom sheet.\n *   **Note:** this will override the `clickOutsideToClose` and `escapeToClose` options, leaving\n *   only the `hide` and `cancel` methods as ways of closing the bottom sheet. Defaults to false.\n *   - `resolve` - `{Object=}`: Similar to locals, except it takes promises as values\n *   and the bottom sheet will not open until the promises resolve.\n *   - `controllerAs` - `{string=}`: An alias to assign the controller to on the scope.\n *   - `parent` - `{element=}`: The element to append the bottom sheet to. The `parent` may be a\n *   `function`, `string`, `Object`, or null. Defaults to appending to the body of the root element\n *   (or the root element) of the application.\n *   e.g. angular.element(document.getElementById('content')) or \"#content\"\n *   - `disableParentScroll` - `{boolean=}`: Whether to disable scrolling while the bottom sheet is\n *   open. Default true.\n *\n * @returns {promise} A promise that can be resolved with `$mdBottomSheet.hide()` or\n * rejected with `$mdBottomSheet.cancel()`.\n */\n\n/**\n * @ngdoc method\n * @name $mdBottomSheet#hide\n *\n * @description\n * Hide the existing bottom sheet and resolve the promise returned from\n * `$mdBottomSheet.show()`. This call will close the most recently opened/current bottom sheet (if\n * any).\n *\n * <em><b>Note:</b> Use a `.then()` on your `.show()` to handle this callback.</em>\n *\n * @param {*=} response An argument for the resolved promise.\n *\n */\n\n/**\n * @ngdoc method\n * @name $mdBottomSheet#cancel\n *\n * @description\n * Hide the existing bottom sheet and reject the promise returned from\n * `$mdBottomSheet.show()`.\n *\n * <em><b>Note:</b> Use a `.catch()` on your `.show()` to handle this callback.</em>\n *\n * @param {*=} response An argument for the rejected promise.\n *\n */\n\nfunction MdBottomSheetProvider($$interimElementProvider) {\n  // how fast we need to flick down to close the sheet, pixels/ms\n  bottomSheetDefaults.$inject = [\"$animate\", \"$mdConstant\", \"$mdUtil\", \"$mdTheming\", \"$mdBottomSheet\", \"$rootElement\", \"$mdGesture\", \"$log\"];\n  var CLOSING_VELOCITY = 0.5;\n  var PADDING = 80; // same as css\n\n  return $$interimElementProvider('$mdBottomSheet')\n    .setDefaults({\n      methods: ['disableParentScroll', 'escapeToClose', 'clickOutsideToClose'],\n      options: bottomSheetDefaults\n    });\n\n  /* @ngInject */\n  function bottomSheetDefaults($animate, $mdConstant, $mdUtil, $mdTheming, $mdBottomSheet, $rootElement,\n                               $mdGesture, $log) {\n    var backdrop;\n\n    return {\n      themable: true,\n      onShow: onShow,\n      onRemove: onRemove,\n      disableBackdrop: false,\n      escapeToClose: true,\n      clickOutsideToClose: true,\n      disableParentScroll: true,\n      isLockedOpen: false\n    };\n\n    function onShow(scope, element, options) {\n      element = $mdUtil.extractElementByName(element, 'md-bottom-sheet');\n\n      // prevent tab focus or click focus on the bottom-sheet container\n      element.attr('tabindex', '-1');\n\n      // Once the md-bottom-sheet has `ng-cloak` applied on his template the opening animation will not work properly.\n      // This is a very common problem, so we have to notify the developer about this.\n      if (element.hasClass('ng-cloak')) {\n        var message = '$mdBottomSheet: using `<md-bottom-sheet ng-cloak>` will affect the bottom-sheet opening animations.';\n        $log.warn(message, element[0]);\n      }\n\n      if (options.isLockedOpen) {\n        options.clickOutsideToClose = false;\n        options.escapeToClose = false;\n      } else {\n        options.cleanupGestures = registerGestures(element, options.parent);\n      }\n\n      if (!options.disableBackdrop) {\n        // Add a backdrop that will close on click\n        backdrop = $mdUtil.createBackdrop(scope, \"md-bottom-sheet-backdrop md-opaque\");\n\n        // Prevent mouse focus on backdrop; ONLY programmatic focus allowed.\n        // This allows clicks on backdrop to propagate to the $rootElement and\n        // ESC key events to be detected properly.\n        backdrop[0].tabIndex = -1;\n\n        if (options.clickOutsideToClose) {\n          backdrop.on('click', function() {\n            $mdUtil.nextTick($mdBottomSheet.cancel, true);\n          });\n        }\n\n        $mdTheming.inherit(backdrop, options.parent);\n\n        $animate.enter(backdrop, options.parent, null);\n      }\n\n      $mdTheming.inherit(element, options.parent);\n\n      if (options.disableParentScroll) {\n        options.restoreScroll = $mdUtil.disableScrollAround(element, options.parent);\n      }\n\n      return $animate.enter(element, options.parent, backdrop)\n        .then(function() {\n          var focusable = $mdUtil.findFocusTarget(element) || angular.element(\n            element[0].querySelector('button') ||\n            element[0].querySelector('a') ||\n            element[0].querySelector($mdUtil.prefixer('ng-click', true))\n          ) || backdrop;\n\n          if (options.escapeToClose) {\n            options.rootElementKeyupCallback = function(e) {\n              if (e.keyCode === $mdConstant.KEY_CODE.ESCAPE) {\n                $mdUtil.nextTick($mdBottomSheet.cancel, true);\n              }\n            };\n\n            $rootElement.on('keyup', options.rootElementKeyupCallback);\n            focusable && focusable.focus();\n          }\n        });\n\n    }\n\n    function onRemove(scope, element, options) {\n      if (!options.disableBackdrop) $animate.leave(backdrop);\n\n      return $animate.leave(element).then(function() {\n        if (options.disableParentScroll) {\n          options.restoreScroll();\n          delete options.restoreScroll;\n        }\n\n        options.cleanupGestures && options.cleanupGestures();\n      });\n    }\n\n    /**\n     * Adds the drag gestures to the bottom sheet.\n     * @param {JQLite} element where CSS transitions will be applied\n     * @param {JQLite} parent used for registering gesture listeners\n     * @return {Function} function that removes gesture listeners that were set up by\n     *  registerGestures()\n     */\n    function registerGestures(element, parent) {\n      var deregister = $mdGesture.register(parent, 'drag', { horizontal: false });\n      parent.on('$md.dragstart', onDragStart)\n        .on('$md.drag', onDrag)\n        .on('$md.dragend', onDragEnd);\n\n      return function cleanupGestures() {\n        deregister();\n        parent.off('$md.dragstart', onDragStart);\n        parent.off('$md.drag', onDrag);\n        parent.off('$md.dragend', onDragEnd);\n      };\n\n      function onDragStart() {\n        // Disable transitions on transform so that it feels fast\n        element.css($mdConstant.CSS.TRANSITION_DURATION, '0ms');\n      }\n\n      function onDrag(ev) {\n        var transform = ev.pointer.distanceY;\n        if (transform < 5) {\n          // Slow down drag when trying to drag up, and stop after PADDING\n          transform = Math.max(-PADDING, transform / 2);\n        }\n        element.css($mdConstant.CSS.TRANSFORM, 'translate3d(0,' + (PADDING + transform) + 'px,0)');\n      }\n\n      function onDragEnd(ev) {\n        if (ev.pointer.distanceY > 0 &&\n            (ev.pointer.distanceY > 20 || Math.abs(ev.pointer.velocityY) > CLOSING_VELOCITY)) {\n          var distanceRemaining = element.prop('offsetHeight') - ev.pointer.distanceY;\n          var transitionDuration = Math.min(distanceRemaining / ev.pointer.velocityY * 0.75, 500);\n          element.css($mdConstant.CSS.TRANSITION_DURATION, transitionDuration + 'ms');\n          $mdUtil.nextTick($mdBottomSheet.cancel, true);\n        } else {\n          element.css($mdConstant.CSS.TRANSITION_DURATION, '');\n          element.css($mdConstant.CSS.TRANSFORM, '');\n        }\n      }\n    }\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.button\n * @description\n *\n * Button\n */\nMdButtonDirective.$inject = [\"$mdButtonInkRipple\", \"$mdTheming\", \"$mdAria\", \"$mdInteraction\"];\nMdAnchorDirective.$inject = [\"$mdTheming\"];\nangular\n    .module('material.components.button', ['material.core'])\n    .directive('mdButton', MdButtonDirective)\n    .directive('a', MdAnchorDirective);\n\n\n/**\n * @private\n * @restrict E\n *\n * @description\n * `a` is an anchor directive used to inherit theme colors for md-primary, md-accent, etc.\n *\n * @usage\n *\n * <hljs lang=\"html\">\n *  <md-content md-theme=\"myTheme\">\n *    <a href=\"#chapter1\" class=\"md-accent\"></a>\n *  </md-content>\n * </hljs>\n */\nfunction MdAnchorDirective($mdTheming) {\n  return {\n    restrict : 'E',\n    link : function postLink(scope, element) {\n      // Make sure to inherit theme so stand-alone anchors\n      // support theme colors for md-primary, md-accent, etc.\n      $mdTheming(element);\n    }\n  };\n}\n\n\n/**\n * @ngdoc directive\n * @name mdButton\n * @module material.components.button\n *\n * @restrict E\n *\n * @description\n * `<md-button>` is a button directive with optional ink ripples (default enabled).\n *\n * If you supply a `href` or `ng-href` attribute, it will become an `<a>` element. Otherwise, it\n * will become a `<button>` element. As per the\n * [Material Design specifications](https://material.google.com/style/color.html#color-color-palette)\n * the FAB button background is filled with the accent color [by default]. The primary color palette\n * may be used with the `md-primary` class.\n *\n * Developers can also change the color palette of the button, by using the following classes\n * - `md-primary`\n * - `md-accent`\n * - `md-warn`\n *\n * See for example\n *\n * <hljs lang=\"html\">\n *   <md-button class=\"md-primary\">Primary Button</md-button>\n * </hljs>\n *\n * Button can be also raised, which means that they will use the current color palette to fill the button.\n *\n * <hljs lang=\"html\">\n *   <md-button class=\"md-accent md-raised\">Raised and Accent Button</md-button>\n * </hljs>\n *\n * It is also possible to disable the focus effect on the button, by using the following markup.\n *\n * <hljs lang=\"html\">\n *   <md-button class=\"md-no-focus\">No Focus Style</md-button>\n * </hljs>\n *\n * @param {string=} aria-label Adds alternative text to button for accessibility, useful for icon buttons.\n * If no default text is found, a warning will be logged.\n * @param {boolean=} md-no-ink If present, disable ink ripple effects.\n * @param {string=} md-ripple-size Overrides the default ripple size logic. Options: `full`, `partial`, `auto`.\n * @param {expression=} ng-disabled Disable the button when the expression is truthy.\n * @param {expression=} ng-blur Expression evaluated when focus is removed from the button.\n *\n * @usage\n *\n * Regular buttons:\n *\n * <hljs lang=\"html\">\n *  <md-button> Flat Button </md-button>\n *  <md-button href=\"http://google.com\"> Flat link </md-button>\n *  <md-button class=\"md-raised\"> Raised Button </md-button>\n *  <md-button ng-disabled=\"true\"> Disabled Button </md-button>\n *  <md-button>\n *    <md-icon md-svg-src=\"your/icon.svg\"></md-icon>\n *    Register Now\n *  </md-button>\n * </hljs>\n *\n * FAB buttons:\n *\n * <hljs lang=\"html\">\n *  <md-button class=\"md-fab\" aria-label=\"FAB\">\n *    <md-icon md-svg-src=\"your/icon.svg\"></md-icon>\n *  </md-button>\n *  <!-- mini-FAB -->\n *  <md-button class=\"md-fab md-mini\" aria-label=\"Mini FAB\">\n *    <md-icon md-svg-src=\"your/icon.svg\"></md-icon>\n *  </md-button>\n *  <!-- Button with SVG Icon -->\n *  <md-button class=\"md-icon-button\" aria-label=\"Custom Icon Button\">\n *    <md-icon md-svg-icon=\"path/to/your.svg\"></md-icon>\n *  </md-button>\n * </hljs>\n */\nfunction MdButtonDirective($mdButtonInkRipple, $mdTheming, $mdAria, $mdInteraction) {\n\n  return {\n    restrict: 'EA',\n    replace: true,\n    transclude: true,\n    template: getTemplate,\n    link: postLink\n  };\n\n  function isAnchor(attr) {\n    return angular.isDefined(attr.href) || angular.isDefined(attr.ngHref) || angular.isDefined(attr.ngLink) || angular.isDefined(attr.uiSref);\n  }\n\n  function getTemplate(element, attr) {\n    if (isAnchor(attr)) {\n      return '<a class=\"md-button\" ng-transclude></a>';\n    } else {\n      // If buttons don't have type=\"button\", they will submit forms automatically.\n      var btnType = (typeof attr.type === 'undefined') ? 'button' : attr.type;\n      return '<button class=\"md-button\" type=\"' + btnType + '\" ng-transclude></button>';\n    }\n  }\n\n  function postLink(scope, element, attr) {\n    $mdTheming(element);\n    $mdButtonInkRipple.attach(scope, element);\n\n    // Use async expect to support possible bindings in the button label\n    $mdAria.expectWithoutText(element, 'aria-label');\n\n    // For anchor elements, we have to set tabindex manually when the element is disabled.\n    // We don't do this for md-nav-bar anchors as the component manages its own tabindex values.\n    if (isAnchor(attr) && angular.isDefined(attr.ngDisabled) &&\n        !element.hasClass('_md-nav-button')) {\n      scope.$watch(attr.ngDisabled, function(isDisabled) {\n        element.attr('tabindex', isDisabled ? -1 : 0);\n      });\n    }\n\n    // disabling click event when disabled is true\n    element.on('click', function(e){\n      if (attr.disabled === true) {\n        e.preventDefault();\n        e.stopImmediatePropagation();\n      }\n    });\n\n    if (!element.hasClass('md-no-focus')) {\n\n      element.on('focus', function() {\n\n        // Only show the focus effect when being focused through keyboard interaction or programmatically\n        if (!$mdInteraction.isUserInvoked() || $mdInteraction.getLastInteractionType() === 'keyboard') {\n          element.addClass('md-focused');\n        }\n\n      });\n\n      element.on('blur', function() {\n        element.removeClass('md-focused');\n      });\n    }\n\n  }\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.card\n *\n * @description\n * Card components.\n */\nmdCardDirective.$inject = [\"$mdTheming\"];\nangular.module('material.components.card', [\n    'material.core'\n  ])\n  .directive('mdCard', mdCardDirective);\n\n\n/**\n * @ngdoc directive\n * @name mdCard\n * @module material.components.card\n *\n * @restrict E\n *\n * @description\n * The `<md-card>` directive is a container element used within `<md-content>` containers.\n *\n * An image included as a direct descendant will fill the card's width. If you want to avoid this,\n * you can add the `md-image-no-fill` class to the parent element. The `<md-card-content>`\n * container will wrap text content and provide padding. An `<md-card-footer>` element can be\n * optionally included to put content flush against the bottom edge of the card.\n *\n * Action buttons can be included in an `<md-card-actions>` element, similar to `<md-dialog-actions>`.\n * You can then position buttons using layout attributes.\n *\n * Card is built with:\n * * `<md-card-header>` - Header for the card, holds avatar, text and squared image\n *  - `<md-card-avatar>` - Card avatar\n *    - `md-user-avatar` - Class for user image\n *    - `<md-icon>`\n *  - `<md-card-header-text>` - Contains elements for the card description\n *    - `md-title` - Class for the card title\n *    - `md-subhead` - Class for the card sub header\n * * `<img>` - Image for the card\n * * `<md-card-title>` - Card content title\n *  - `<md-card-title-text>`\n *    - `md-headline` - Class for the card content title\n *    - `md-subhead` - Class for the card content sub header\n *  - `<md-card-title-media>` - Squared image within the title\n *    - `md-media-sm` - Class for small image\n *    - `md-media-md` - Class for medium image\n *    - `md-media-lg` - Class for large image\n *    - `md-media-xl` - Class for extra large image\n * * `<md-card-content>` - Card content\n * * `<md-card-actions>` - Card actions\n *  - `<md-card-icon-actions>` - Icon actions\n *\n * Cards have constant width and variable heights; where the maximum height is limited to what can\n * fit within a single view on a platform, but it can temporarily expand as needed.\n *\n * @usage\n * ### Card with optional footer\n * <hljs lang=\"html\">\n * <md-card>\n *  <img src=\"card-image.png\" class=\"md-card-image\" alt=\"image caption\">\n *  <md-card-content>\n *    <h2>Card headline</h2>\n *    <p>Card content</p>\n *  </md-card-content>\n *  <md-card-footer>\n *    Card footer\n *  </md-card-footer>\n * </md-card>\n * </hljs>\n *\n * ### Card with actions\n * <hljs lang=\"html\">\n * <md-card>\n *  <img src=\"card-image.png\" class=\"md-card-image\" alt=\"image caption\">\n *  <md-card-content>\n *    <h2>Card headline</h2>\n *    <p>Card content</p>\n *  </md-card-content>\n *  <md-card-actions layout=\"row\" layout-align=\"end center\">\n *    <md-button>Action 1</md-button>\n *    <md-button>Action 2</md-button>\n *  </md-card-actions>\n * </md-card>\n * </hljs>\n *\n * ### Card with header, image, title actions and content\n * <hljs lang=\"html\">\n * <md-card>\n *   <md-card-header>\n *     <md-card-avatar>\n *       <img class=\"md-user-avatar\" src=\"avatar.png\"/>\n *     </md-card-avatar>\n *     <md-card-header-text>\n *       <span class=\"md-title\">Title</span>\n *       <span class=\"md-subhead\">Sub header</span>\n *     </md-card-header-text>\n *   </md-card-header>\n *   <img ng-src=\"card-image.png\" class=\"md-card-image\" alt=\"image caption\">\n *   <md-card-title>\n *     <md-card-title-text>\n *       <span class=\"md-headline\">Card headline</span>\n *       <span class=\"md-subhead\">Card subheader</span>\n *     </md-card-title-text>\n *   </md-card-title>\n *   <md-card-actions layout=\"row\" layout-align=\"start center\">\n *     <md-button>Action 1</md-button>\n *     <md-button>Action 2</md-button>\n *     <md-card-icon-actions>\n *       <md-button class=\"md-icon-button\" aria-label=\"icon\">\n *         <md-icon md-svg-icon=\"icon\"></md-icon>\n *       </md-button>\n *     </md-card-icon-actions>\n *   </md-card-actions>\n *   <md-card-content>\n *     <p>\n *      Card content\n *     </p>\n *   </md-card-content>\n * </md-card>\n * </hljs>\n */\nfunction mdCardDirective($mdTheming) {\n  return {\n    restrict: 'E',\n    link: function ($scope, $element, attr) {\n      $element.addClass('_md');     // private md component indicator for styling\n      $mdTheming($element);\n    }\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.checkbox\n * @description Checkbox module!\n */\nMdCheckboxDirective.$inject = [\"inputDirective\", \"$mdAria\", \"$mdConstant\", \"$mdTheming\", \"$mdUtil\", \"$mdInteraction\"];\nangular\n  .module('material.components.checkbox', ['material.core'])\n  .directive('mdCheckbox', MdCheckboxDirective);\n\n/**\n * @ngdoc directive\n * @name mdCheckbox\n * @module material.components.checkbox\n * @restrict E\n *\n * @description\n * The checkbox directive is used like the normal\n * [angular checkbox](https://docs.angularjs.org/api/ng/input/input%5Bcheckbox%5D).\n *\n * As per the [Material Design spec](https://material.io/archive/guidelines/style/color.html#color-color-palette)\n * the checkbox is in the accent color by default. The primary color palette may be used with\n * the `md-primary` class.\n *\n * @param {expression} ng-model Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {expression=} ng-true-value The value to which the expression should be set when selected.\n * @param {expression=} ng-false-value The value to which the expression should be set when not\n *    selected.\n * @param {expression=} ng-change Expression to be executed when the model value changes.\n * @param {boolean=} md-no-ink If present, disable ink ripple effects.\n * @param {string=} aria-label Adds label to checkbox for accessibility.\n *    Defaults to checkbox's text. If no default text is found, a warning will be logged.\n * @param {expression=} md-indeterminate This determines when the checkbox should be rendered as\n *    'indeterminate'. If a truthy expression or no value is passed in the checkbox renders in the\n *    md-indeterminate state. If falsy expression is passed in it just looks like a normal unchecked\n *    checkbox. The indeterminate, checked, and unchecked states are mutually exclusive. A box\n *    cannot be in any two states at the same time. Adding the 'md-indeterminate' attribute\n *    overrides any checked/unchecked rendering logic. When using the 'md-indeterminate' attribute\n *    use 'ng-checked' to define rendering logic instead of using 'ng-model'.\n * @param {expression=} ng-checked If this expression evaluates as truthy, the 'md-checked' css\n *    class is added to the checkbox and it will appear checked.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-checkbox ng-model=\"isChecked\" aria-label=\"Finished?\">\n *   Finished ?\n * </md-checkbox>\n *\n * <md-checkbox md-no-ink ng-model=\"hasInk\" aria-label=\"No Ink Effects\">\n *   No Ink Effects\n * </md-checkbox>\n *\n * <md-checkbox ng-disabled=\"true\" ng-model=\"isDisabled\" aria-label=\"Disabled\">\n *   Disabled\n * </md-checkbox>\n *\n * </hljs>\n *\n */\nfunction MdCheckboxDirective(inputDirective, $mdAria, $mdConstant, $mdTheming, $mdUtil, $mdInteraction) {\n  inputDirective = inputDirective[0];\n\n  return {\n    restrict: 'E',\n    transclude: true,\n    require: ['^?mdInputContainer', '?ngModel', '?^form'],\n    priority: $mdConstant.BEFORE_NG_ARIA,\n    template:\n      '<div class=\"md-container\" md-ink-ripple md-ink-ripple-checkbox>' +\n        '<div class=\"md-icon\"></div>' +\n      '</div>' +\n      '<div ng-transclude class=\"md-label\"></div>',\n    compile: compile\n  };\n\n  // **********************************************************\n  // Private Methods\n  // **********************************************************\n\n  function compile (tElement, tAttrs) {\n    tAttrs.$set('tabindex', tAttrs.tabindex || '0');\n    tAttrs.$set('type', 'checkbox');\n    tAttrs.$set('role', tAttrs.type);\n    tElement.addClass('md-auto-horizontal-margin');\n\n    return  {\n      pre: function(scope, element) {\n        // Attach a click handler during preLink, in order to immediately stop propagation\n        // (especially for ng-click) when the checkbox is disabled.\n        element.on('click', function(e) {\n          if (this.hasAttribute('disabled')) {\n            e.stopImmediatePropagation();\n          }\n        });\n      },\n      post: postLink\n    };\n\n    function postLink(scope, element, attr, ctrls) {\n      var isIndeterminate;\n      var containerCtrl = ctrls[0];\n      var ngModelCtrl = ctrls[1] || $mdUtil.fakeNgModel();\n      var formCtrl = ctrls[2];\n      var labelHasLink = element.find('a').length > 0;\n\n      // The original component structure is not accessible when the checkbox's label contains a link.\n      // In order to keep backwards compatibility, we're only changing the structure of the component\n      // when we detect a link within the label. Using a span after the md-checkbox and attaching it\n      // via aria-labelledby allows screen readers to find and work with the link within the label.\n      if (labelHasLink) {\n        var labelId = 'label-' + $mdUtil.nextUid();\n        attr.$set('aria-labelledby', labelId);\n\n        var label = element.children()[1];\n        // Use jQLite here since ChildNode.remove() is not supported in IE11.\n        angular.element(label).remove();\n        label.removeAttribute('ng-transclude');\n        label.className = 'md-checkbox-link-label';\n        label.setAttribute('id', labelId);\n        element.after(label);\n        // Make sure that clicking on the label still causes the checkbox to be toggled, when appropriate.\n        var externalLabel = element.next();\n        externalLabel.on('click', listener);\n      }\n\n      if (containerCtrl) {\n        var isErrorGetter = containerCtrl.isErrorGetter || function() {\n          return ngModelCtrl.$invalid && (ngModelCtrl.$touched || (formCtrl && formCtrl.$submitted));\n        };\n\n        containerCtrl.input = element;\n\n        scope.$watch(isErrorGetter, containerCtrl.setInvalid);\n      }\n\n      $mdTheming(element);\n\n      // Redirect focus events to the root element, because IE11 is always focusing the container element instead\n      // of the md-checkbox element. This causes issues when using ngModelOptions: `updateOnBlur`\n      element.children().on('focus', function() {\n        element.focus();\n      });\n\n      if ($mdUtil.parseAttributeBoolean(attr.mdIndeterminate)) {\n        setIndeterminateState();\n        scope.$watch(attr.mdIndeterminate, setIndeterminateState);\n      }\n\n      if (attr.ngChecked) {\n        scope.$watch(scope.$eval.bind(scope, attr.ngChecked), function(value) {\n          ngModelCtrl.$setViewValue(value);\n          ngModelCtrl.$render();\n        });\n      }\n\n      $$watchExpr('ngDisabled', 'tabindex', {\n        true: '-1',\n        false: attr.tabindex\n      });\n\n      // Don't emit a warning when the label has a link within it. In that case we'll use\n      // aria-labelledby to point to another span that should be read as the label.\n      if (!labelHasLink) {\n        $mdAria.expectWithText(element, 'aria-label');\n      }\n\n      // Reuse the original input[type=checkbox] directive from AngularJS core.\n      // This is a bit hacky as we need our own event listener and own render\n      // function.\n      inputDirective.link.pre(scope, {\n        on: angular.noop,\n        0: {}\n      }, attr, [ngModelCtrl]);\n\n      element.on('click', listener)\n        .on('keypress', keypressHandler)\n        .on('focus', function() {\n          if ($mdInteraction.getLastInteractionType() === 'keyboard') {\n            element.addClass('md-focused');\n          }\n        })\n        .on('blur', function() {\n          element.removeClass('md-focused');\n        });\n\n      ngModelCtrl.$render = render;\n\n      function $$watchExpr(expr, htmlAttr, valueOpts) {\n        if (attr[expr]) {\n          scope.$watch(attr[expr], function(val) {\n            if (valueOpts[val]) {\n              element.attr(htmlAttr, valueOpts[val]);\n            }\n          });\n        }\n      }\n\n      /**\n       * @param {KeyboardEvent} ev 'keypress' event to handle\n       */\n      function keypressHandler(ev) {\n        var keyCode = ev.which || ev.keyCode;\n        var submit, form;\n\n        ev.preventDefault();\n        switch (keyCode) {\n          case $mdConstant.KEY_CODE.SPACE:\n            element.addClass('md-focused');\n            listener(ev);\n            break;\n          case $mdConstant.KEY_CODE.ENTER:\n            // Match the behavior of the native <input type=\"checkbox\">.\n            // When the enter key is pressed while focusing a native checkbox inside a form,\n            // the browser will trigger a `click` on the first non-disabled submit button/input\n            // in the form. Note that this is different from text inputs, which\n            // will directly submit the form without needing a submit button/input to be present.\n            form = $mdUtil.getClosest(ev.target, 'form');\n            if (form) {\n              submit = form.querySelector('button[type=\"submit\"]:enabled, input[type=\"submit\"]:enabled');\n              if (submit) {\n                submit.click();\n              }\n            }\n            break;\n        }\n      }\n\n      function listener(ev) {\n        // skipToggle boolean is used by the switch directive to prevent the click event\n        // when releasing the drag. There will be always a click if releasing the drag over the checkbox.\n        // If the click came from a link in the checkbox, don't toggle the value.\n        // We want the link to be opened without changing the value in this case.\n        if (element[0].hasAttribute('disabled') || scope.skipToggle || ev.target.tagName === 'A') {\n          return;\n        }\n\n        scope.$apply(function() {\n          // Toggle the checkbox value...\n          var viewValue = attr.ngChecked && attr.ngClick ? attr.checked : !ngModelCtrl.$viewValue;\n\n          ngModelCtrl.$setViewValue(viewValue, ev && ev.type);\n          ngModelCtrl.$render();\n        });\n      }\n\n      function render() {\n        // Cast the $viewValue to a boolean since it could be undefined\n        var checked = !!ngModelCtrl.$viewValue && !isIndeterminate;\n        element.toggleClass('md-checked', checked);\n        if (!isIndeterminate) {\n          if (checked) {\n            element.attr('aria-checked', 'true');\n          } else {\n            element.attr('aria-checked', 'false');\n          }\n        }\n      }\n\n      /**\n       * @param {string=} newValue\n       */\n      function setIndeterminateState(newValue) {\n        isIndeterminate = newValue !== false;\n        if (isIndeterminate) {\n          element.attr('aria-checked', 'mixed');\n        }\n        element.toggleClass('md-indeterminate', isIndeterminate);\n        ngModelCtrl.$render();\n      }\n    }\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.chips\n */\n/*\n * @see js folder for chips implementation\n */\nangular.module('material.components.chips', [\n  'material.core',\n  'material.components.autocomplete'\n]);\n\n})();\n(function(){\n\"use strict\";\n\n\nMdChipCtrl.$inject = [\"$scope\", \"$element\", \"$mdConstant\", \"$timeout\", \"$mdUtil\"];angular\n  .module('material.components.chips')\n  .controller('MdChipCtrl', MdChipCtrl);\n\n/**\n * Controller for the MdChip component. Responsible for handling keyboard\n * events and editing the chip if needed.\n *\n * @param $scope\n * @param $element\n * @param $mdConstant\n * @param $timeout\n * @param $mdUtil\n * @constructor\n */\nfunction MdChipCtrl ($scope, $element, $mdConstant, $timeout, $mdUtil) {\n  /**\n   * @type {$scope}\n   */\n  this.$scope = $scope;\n\n  /**\n   * @type {$element}\n   */\n  this.$element = $element;\n\n  /**\n   * @type {$mdConstant}\n   */\n  this.$mdConstant = $mdConstant;\n\n  /**\n   * @type {$timeout}\n   */\n  this.$timeout = $timeout;\n\n  /**\n   * @type {$mdUtil}\n   */\n  this.$mdUtil = $mdUtil;\n\n  /**\n   * @type {boolean}\n   */\n  this.isEditing = false;\n\n  /**\n   * @type {MdChipsCtrl}\n   */\n  this.parentController = undefined;\n\n  /**\n   * @type {boolean}\n   */\n  this.enableChipEdit = false;\n}\n\n\n/**\n * @param {MdChipsCtrl} controller\n */\nMdChipCtrl.prototype.init = function(controller) {\n  this.parentController = controller;\n  this.enableChipEdit = this.parentController.enableChipEdit;\n\n  if (this.enableChipEdit) {\n    this.$element.on('keydown', this.chipKeyDown.bind(this));\n    this.$element.on('dblclick', this.chipMouseDoubleClick.bind(this));\n    this.getChipContent().addClass('_md-chip-content-edit-is-enabled');\n  }\n};\n\n\n/**\n * @return {Object} first element with the md-chip-content class\n */\nMdChipCtrl.prototype.getChipContent = function() {\n  var chipContents = this.$element[0].getElementsByClassName('md-chip-content');\n  return angular.element(chipContents[0]);\n};\n\n\n/**\n * When editing the chip, if the user modifies the existing contents, we'll get a span back and\n * need to ignore text elements as they only contain blank space.\n * `children()` ignores text elements.\n *\n * When editing the chip, if the user deletes the contents and then enters some new content\n * we'll only get a text element back.\n * @return {Object} jQuery object representing the content element of the chip\n */\nMdChipCtrl.prototype.getContentElement = function() {\n  var contentElement = angular.element(this.getChipContent().children()[0]);\n  if (!contentElement || contentElement.length === 0) {\n    contentElement = angular.element(this.getChipContent().contents()[0]);\n  }\n  return contentElement;\n};\n\n\n/**\n * @return {number} index of this chip\n */\nMdChipCtrl.prototype.getChipIndex = function() {\n  return parseInt(this.$element.attr('index'));\n};\n\n\n/**\n * Update the chip's contents, focus the chip if it's selected, and exit edit mode.\n * If the contents were updated to be empty, remove the chip and re-focus the input element.\n */\nMdChipCtrl.prototype.goOutOfEditMode = function() {\n  if (!this.isEditing) {\n    return;\n  }\n\n  this.isEditing = false;\n  this.$element.removeClass('_md-chip-editing');\n  this.getChipContent()[0].contentEditable = 'false';\n  var chipIndex = this.getChipIndex();\n\n  var content = this.getContentElement().text();\n  if (content) {\n    this.parentController.updateChipContents(chipIndex, content);\n\n    this.$mdUtil.nextTick(function() {\n      if (this.parentController.selectedChip === chipIndex) {\n        this.parentController.focusChip(chipIndex);\n      }\n    }.bind(this));\n  } else {\n    this.parentController.removeChipAndFocusInput(chipIndex);\n  }\n};\n\n\n/**\n * Given an HTML element. Selects contents of it.\n * @param {Element} node\n */\nMdChipCtrl.prototype.selectNodeContents = function(node) {\n  var range, selection;\n  if (document.body.createTextRange) {\n    range = document.body.createTextRange();\n    range.moveToElementText(node);\n    range.select();\n  } else if (window.getSelection) {\n    selection = window.getSelection();\n    range = document.createRange();\n    range.selectNodeContents(node);\n    selection.removeAllRanges();\n    selection.addRange(range);\n  }\n};\n\n\n/**\n * Presents an input element to edit the contents of the chip.\n */\nMdChipCtrl.prototype.goInEditMode = function() {\n  this.isEditing = true;\n  this.$element.addClass('_md-chip-editing');\n  this.getChipContent()[0].contentEditable = 'true';\n  this.getChipContent().on('blur', function() {\n    this.goOutOfEditMode();\n  }.bind(this));\n\n  this.selectNodeContents(this.getChipContent()[0]);\n};\n\n\n/**\n * Handles the keydown event on the chip element. If enable-chip-edit attribute is\n * set to true, space or enter keys can trigger going into edit mode. Enter can also\n * trigger submitting if the chip is already being edited.\n * @param {KeyboardEvent} event\n */\nMdChipCtrl.prototype.chipKeyDown = function(event) {\n  if (!this.isEditing &&\n    (event.keyCode === this.$mdConstant.KEY_CODE.ENTER ||\n      event.keyCode === this.$mdConstant.KEY_CODE.SPACE)) {\n    event.preventDefault();\n    this.goInEditMode();\n  } else if (this.isEditing && event.keyCode === this.$mdConstant.KEY_CODE.ENTER) {\n    event.preventDefault();\n    this.goOutOfEditMode();\n  }\n};\n\n\n/**\n * Enter edit mode if we're not already editing and the enable-chip-edit attribute is enabled.\n */\nMdChipCtrl.prototype.chipMouseDoubleClick = function() {\n  if (this.enableChipEdit && !this.isEditing) {\n    this.goInEditMode();\n  }\n};\n\n})();\n(function(){\n\"use strict\";\n\n\nMdChip.$inject = [\"$mdTheming\", \"$mdUtil\", \"$compile\", \"$timeout\"];angular\n  .module('material.components.chips')\n  .directive('mdChip', MdChip);\n\n/**\n * @ngdoc directive\n * @name mdChip\n * @module material.components.chips\n *\n * @description\n * `<md-chip>` is a component used within `<md-chips>`. It is responsible for rendering an\n * individual chip.\n *\n *\n * @usage\n * <hljs lang=\"html\">\n *   <md-chips>\n *     <md-chip>{{$chip}}</md-chip>\n *   </md-chips>\n * </hljs>\n *\n */\n\n/**\n * MDChip Directive Definition\n *\n * @param $mdTheming\n * @param $mdUtil\n * @param $compile\n * @param $timeout\n * @ngInject\n */\nfunction MdChip($mdTheming, $mdUtil, $compile, $timeout) {\n  return {\n    restrict: 'E',\n    require: ['^?mdChips', 'mdChip'],\n    link: postLink,\n    controller: 'MdChipCtrl'\n  };\n\n  function postLink(scope, element, attr, ctrls) {\n    var chipsController = ctrls.shift();\n    var chipController = ctrls.shift();\n    var chipContentElement = angular.element(element[0].querySelector('.md-chip-content'));\n\n    $mdTheming(element);\n\n    if (chipsController) {\n      chipController.init(chipsController);\n\n      // When a chip is blurred, make sure to unset (or reset) the selected chip so that tabbing\n      // through elements works properly\n      chipContentElement.on('blur', function() {\n        chipsController.resetSelectedChip();\n        chipsController.$scope.$applyAsync();\n      });\n    }\n\n    // Use $timeout to ensure we run AFTER the element has been added to the DOM so we can focus it.\n    $timeout(function() {\n      if (!chipsController) {\n        return;\n      }\n\n      if (chipsController.shouldFocusLastChip) {\n        chipsController.focusLastChipThenInput();\n      }\n    });\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n\nMdChipRemove.$inject = [\"$timeout\"];angular\n    .module('material.components.chips')\n    .directive('mdChipRemove', MdChipRemove);\n\n/**\n * @ngdoc directive\n * @name mdChipRemove\n * @restrict A\n * @module material.components.chips\n *\n * @description\n * Indicates that the associated element should be used as the delete button template for all chips.\n * The associated element must be a child of `md-chips`.\n *\n * The provided button template will be appended to each chip and will remove the associated chip\n * on click.\n *\n * The button is not styled or themed based on the theme set on the `md-chips` component. A theme\n * class and custom icon can be specified in your template.\n *\n * You can also specify the `type` of the button in your template.\n *\n * @usage\n * ### With Standard Chips\n * <hljs lang=\"html\">\n *   <md-chips ...>\n *     <button md-chip-remove type=\"button\" aria-label=\"Remove {{$chip}}\">\n *       <md-icon md-svg-icon=\"md-cancel\"></md-icon>\n *     </button>\n *   </md-chips>\n * </hljs>\n *\n * ### With Object Chips\n * <hljs lang=\"html\">\n *   <md-chips ...>\n *     <button md-chip-remove type=\"button\" aria-label=\"Remove {{$chip.name}}\">\n *       <md-icon md-svg-icon=\"md-cancel\"></md-icon>\n *     </button>\n *   </md-chips>\n * </hljs>\n */\n\n\n/**\n * MdChipRemove Directive Definition.\n *\n * @param $timeout\n * @returns {{restrict: string, require: string[], link: Function, scope: boolean}}\n * @constructor\n */\nfunction MdChipRemove ($timeout) {\n  return {\n    restrict: 'A',\n    require: '^mdChips',\n    scope: false,\n    link: postLink\n  };\n\n  function postLink(scope, element, attr, ctrl) {\n    element.on('click', function() {\n      scope.$apply(function() {\n        ctrl.removeChip(scope.$$replacedScope.$index);\n      });\n    });\n\n    // Child elements aren't available until after a $timeout tick as they are hidden by an\n    // `ng-if`. see http://goo.gl/zIWfuw\n    $timeout(function() {\n      element.attr({ 'tabindex': '-1', 'aria-hidden': 'true' });\n      element.find('button').attr('tabindex', '-1');\n    });\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n\nMdChipTransclude.$inject = [\"$compile\"];angular\n    .module('material.components.chips')\n    .directive('mdChipTransclude', MdChipTransclude);\n\nfunction MdChipTransclude ($compile) {\n  return {\n    restrict: 'EA',\n    terminal: true,\n    link: link,\n    scope: false\n  };\n  function link (scope, element, attr) {\n    var ctrl = scope.$parent.$mdChipsCtrl,\n        newScope = ctrl.parent.$new(false, ctrl.parent);\n    newScope.$$replacedScope = scope;\n    newScope.$chip = scope.$chip;\n    newScope.$index = scope.$index;\n    newScope.$mdChipsCtrl = ctrl;\n\n    var newHtml = ctrl.$scope.$eval(attr.mdChipTransclude);\n\n    element.html(newHtml);\n    $compile(element.contents())(newScope);\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * The default chip append delay.\n *\n * @type {number}\n */\nMdChipsCtrl.$inject = [\"$scope\", \"$attrs\", \"$mdConstant\", \"$log\", \"$element\", \"$timeout\", \"$mdUtil\", \"$mdLiveAnnouncer\", \"$exceptionHandler\"];\nvar DEFAULT_CHIP_APPEND_DELAY = 300;\n\nangular\n    .module('material.components.chips')\n    .controller('MdChipsCtrl', MdChipsCtrl);\n\n/**\n * Controller for the MdChips component. Responsible for adding to and\n * removing from the list of chips, marking chips as selected, and binding to\n * the models of various input components.\n *\n * @param $scope\n * @param $attrs\n * @param $mdConstant\n * @param $log\n * @param $element\n * @param $timeout\n * @param $mdUtil\n * @param $mdLiveAnnouncer\n * @param $exceptionHandler\n * @constructor\n */\nfunction MdChipsCtrl ($scope, $attrs, $mdConstant, $log, $element, $timeout, $mdUtil,\n                      $mdLiveAnnouncer, $exceptionHandler) {\n  /** @type {Function} **/\n  this.$timeout = $timeout;\n\n  /** @type {Object} */\n  this.$mdConstant = $mdConstant;\n\n  /** @type {angular.$scope} */\n  this.$scope = $scope;\n\n  /** @type {angular.$scope} */\n  this.parent = $scope.$parent;\n\n  /** @type {$mdUtil} */\n  this.$mdUtil = $mdUtil;\n\n  /** @type {$log} */\n  this.$log = $log;\n\n  /** @type {$mdLiveAnnouncer} */\n  this.$mdLiveAnnouncer = $mdLiveAnnouncer;\n\n  /** @type {$exceptionHandler} */\n  this.$exceptionHandler = $exceptionHandler;\n\n  /** @type {$element} */\n  this.$element = $element;\n\n  /** @type {$attrs} */\n  this.$attrs = $attrs;\n\n  /** @type {angular.NgModelController} */\n  this.ngModelCtrl = null;\n\n  /** @type {angular.NgModelController} */\n  this.userInputNgModelCtrl = null;\n\n  /** @type {MdAutocompleteCtrl} */\n  this.autocompleteCtrl = null;\n\n  /** @type {Element} */\n  this.userInputElement = null;\n\n  /** @type {Array.<Object>} */\n  this.items = [];\n\n  /** @type {number} */\n  this.selectedChip = -1;\n\n  /** @type {string} */\n  this.enableChipEdit = $mdUtil.parseAttributeBoolean($attrs.mdEnableChipEdit);\n\n  /** @type {string} */\n  this.addOnBlur = $mdUtil.parseAttributeBoolean($attrs.mdAddOnBlur);\n\n  /**\n   * The class names to apply to the autocomplete or input.\n   * @type {string}\n   */\n  this.inputClass = '';\n\n  /**\n   * The text to be used as the aria-label for the input.\n   * @type {string}\n   */\n  this.inputAriaLabel = 'Chips input.';\n\n  /**\n   * Label text to describe the chips container. Used to give context and instructions to screen\n   * reader users when the chips container is selected.\n   * @type {string}\n   */\n  this.containerHint = 'Chips container. Use arrow keys to select chips.';\n\n  /**\n   * Label text to describe the chips container when it is empty. Used to give context and\n   * instructions to screen reader users when the chips container is selected and it contains\n   * no chips.\n   * @type {string}\n   */\n  this.containerEmptyHint =\n    'Chips container. Enter the text area, then type text, and press enter to add a chip.';\n\n  /**\n   * Hidden hint text for how to delete a chip. Used to give context to screen readers.\n   * @type {string}\n   */\n  this.deleteHint = 'Press delete to remove this chip.';\n\n  /**\n   * Hidden label for the delete button. Used to give context to screen readers.\n   * @type {string}\n   */\n  this.deleteButtonLabel = 'Remove';\n\n  /**\n   * Model used by the input element.\n   * @type {string}\n   */\n  this.chipBuffer = '';\n\n  /**\n   * Whether to use the transformChip expression to transform the chip buffer\n   * before appending it to the list.\n   * @type {boolean}\n   */\n  this.useTransformChip = false;\n\n  /**\n   * Whether to use the onAdd expression to notify of chip additions.\n   * @type {boolean}\n   */\n  this.useOnAdd = false;\n\n  /**\n   * Whether to use the onRemove expression to notify of chip removals.\n   * @type {boolean}\n   */\n  this.useOnRemove = false;\n\n  /**\n   * The ID of the chips wrapper which is used to build unique IDs for the chips and the aria-owns\n   * attribute.\n   *\n   * Defaults to '_md-chips-wrapper-' plus a unique number.\n   *\n   * @type {string}\n   */\n  this.wrapperId = '';\n\n  /**\n   * Array of unique numbers which will be auto-generated any time the items change, and is used to\n   * create unique IDs for the aria-owns attribute.\n   *\n   * @type {Array<number>}\n   */\n  this.contentIds = [];\n\n  /**\n   * The index of the chip that should have it's `tabindex` property set to `0` so it is selectable\n   * via the keyboard.\n   *\n   * @type {number|null}\n   */\n  this.ariaTabIndex = null;\n\n  /**\n   * After appending a chip, the chip will be focused for this number of milliseconds before the\n   * input is refocused.\n   *\n   * **Note:** This is **required** for compatibility with certain screen readers in order for\n   * them to properly allow keyboard access.\n   *\n   * @type {number}\n   */\n  this.chipAppendDelay = DEFAULT_CHIP_APPEND_DELAY;\n\n  /**\n   * Collection of functions to call to un-register watchers\n   *\n   * @type {Array}\n   */\n  this.deRegister = [];\n\n  /**\n   * The screen reader will announce the chip content followed by this message when a chip is added.\n   * @type {string}\n   */\n  this.addedMessage = 'added';\n\n  /**\n   * The screen reader will announce the chip content followed by this message when a chip is\n   * removed.\n   * @type {string}\n   */\n  this.removedMessage = 'removed';\n\n  this.init();\n}\n\n/**\n * Initializes variables and sets up watchers\n */\nMdChipsCtrl.prototype.init = function() {\n  var ctrl = this;\n\n  // Set the wrapper ID\n  this.wrapperId = '_md-chips-wrapper-' + this.$mdUtil.nextUid();\n\n  // If we're using static chips, then we need to initialize a few things.\n  if (!this.$element.attr('ng-model')) {\n    this.setupStaticChips();\n  }\n\n  // Setup a watcher which manages the role and aria-owns attributes.\n  // This is never called for static chips since items is not defined.\n  this.deRegister.push(\n    this.$scope.$watchCollection('$mdChipsCtrl.items', function() {\n      // Make sure our input and wrapper have the correct ARIA attributes\n      ctrl.setupInputAria();\n      ctrl.setupWrapperAria();\n    })\n  );\n\n  this.deRegister.push(\n    this.$attrs.$observe('mdChipAppendDelay', function(newValue) {\n      ctrl.chipAppendDelay = parseInt(newValue) || DEFAULT_CHIP_APPEND_DELAY;\n    })\n  );\n};\n\n/**\n * Destructor for cleanup\n */\nMdChipsCtrl.prototype.$onDestroy = function $onDestroy() {\n  var $destroyFn;\n  while (($destroyFn = this.deRegister.pop())) {\n    $destroyFn.call(this);\n  }\n};\n\n/**\n * If we have an input, ensure it has the appropriate ARIA attributes.\n */\nMdChipsCtrl.prototype.setupInputAria = function() {\n  var input = this.$element.find('input');\n\n  // If we have no input, just return\n  if (!input) {\n    return;\n  }\n\n  input.attr('role', 'textbox');\n  input.attr('aria-multiline', true);\n  if (this.inputAriaDescribedBy) {\n    input.attr('aria-describedby', this.inputAriaDescribedBy);\n  }\n  if (this.inputAriaLabelledBy) {\n    input.attr('aria-labelledby', this.inputAriaLabelledBy);\n    input.removeAttr('aria-label');\n  } else {\n    input.attr('aria-label', this.inputAriaLabel);\n  }\n};\n\n/**\n * Ensure our wrapper has the appropriate ARIA attributes.\n */\nMdChipsCtrl.prototype.setupWrapperAria = function() {\n  var ctrl = this,\n      wrapper = this.$element.find('md-chips-wrap');\n\n  if (this.items && this.items.length) {\n    // Dynamically add the listbox role on every change because it must be removed when there are\n    // no items.\n    wrapper.attr('role', 'listbox');\n\n    // Generate some random (but unique) IDs for each chip\n    this.contentIds = this.items.map(function() {\n      return ctrl.wrapperId + '-chip-' + ctrl.$mdUtil.nextUid();\n    });\n\n    // Use the contentIDs above to generate the aria-owns attribute\n    wrapper.attr('aria-owns', this.contentIds.join(' '));\n    wrapper.attr('aria-label', this.containerHint);\n  } else {\n    // If we have no items, then the role and aria-owns attributes MUST be removed\n    wrapper.removeAttr('role');\n    wrapper.removeAttr('aria-owns');\n    wrapper.attr('aria-label', this.containerEmptyHint);\n  }\n};\n\n/**\n * Apply specific roles and aria attributes for static chips\n */\nMdChipsCtrl.prototype.setupStaticChips = function() {\n  var ctrl = this, i, staticChips;\n  var wrapper = this.$element.find('md-chips-wrap');\n\n  this.$timeout(function() {\n    wrapper.attr('role', 'list');\n    staticChips = wrapper[0].children;\n    for (i = 0; i < staticChips.length; i++) {\n      staticChips[i].setAttribute('role', 'listitem');\n      staticChips[i].setAttribute('aria-setsize', staticChips.length);\n    }\n    if (ctrl.inputAriaDescribedBy) {\n      wrapper.attr('aria-describedby', ctrl.inputAriaDescribedBy);\n    }\n    if (ctrl.inputAriaLabelledBy) {\n      wrapper.attr('aria-labelledby', ctrl.inputAriaLabelledBy);\n      wrapper.removeAttr('aria-label');\n    } else {\n      wrapper.attr('aria-label', ctrl.inputAriaLabel);\n    }\n  }, 10);\n};\n\n/**\n * Handles the keydown event on the input element: by default <enter> appends\n * the buffer to the chip list, while backspace removes the last chip in the\n * list if the current buffer is empty.\n * @param {jQuery.Event|KeyboardEvent} event\n */\nMdChipsCtrl.prototype.inputKeydown = function(event) {\n  var chipBuffer = this.getChipBuffer();\n\n  // If we have an autocomplete, and it handled the event, we have nothing to do\n  if (this.autocompleteCtrl && event.isDefaultPrevented && event.isDefaultPrevented()) {\n    return;\n  }\n\n  if (event.keyCode === this.$mdConstant.KEY_CODE.BACKSPACE) {\n    // Only select and focus the previous chip, if the current caret position of the\n    // input element is at the beginning.\n    if (this.getCursorPosition(event.target) !== 0) {\n      return;\n    }\n\n    event.preventDefault();\n    event.stopPropagation();\n\n    if (this.items.length) {\n      this.selectAndFocusChipSafe(this.items.length - 1);\n    }\n\n    return;\n  }\n\n  // By default <enter> appends the buffer to the chip list.\n  if (!this.separatorKeys || this.separatorKeys.length < 1) {\n    this.separatorKeys = [this.$mdConstant.KEY_CODE.ENTER];\n  }\n\n  // Support additional separator key codes in an array of `md-separator-keys`.\n  if (this.separatorKeys.indexOf(event.keyCode) !== -1) {\n    if ((this.autocompleteCtrl && this.requireMatch) || !chipBuffer) return;\n    event.preventDefault();\n\n    // Only append the chip and reset the chip buffer if the max chips limit isn't reached.\n    if (this.hasMaxChipsReached()) return;\n\n    this.appendChip(chipBuffer.trim());\n    this.resetChipBuffer();\n\n    return false;\n  }\n};\n\n/**\n * Returns the cursor position of the specified input element.\n * @param {HTMLInputElement} element relevant input element\n * @returns {Number} Cursor Position of the input.\n */\nMdChipsCtrl.prototype.getCursorPosition = function(element) {\n  /*\n   * Figure out whether the current input for the chips buffer is valid for using\n   * the selectionStart / end property to retrieve the cursor position.\n   * Some browsers do not allow the use of those attributes, on different input types.\n   */\n  try {\n    if (element.selectionStart === element.selectionEnd) {\n      return element.selectionStart;\n    }\n  } catch (e) {\n    if (!element.value) {\n      return 0;\n    }\n  }\n};\n\n\n/**\n * Updates the content of the chip at given index\n * @param {number} chipIndex\n * @param {string} chipContents\n */\nMdChipsCtrl.prototype.updateChipContents = function(chipIndex, chipContents) {\n  if (chipIndex >= 0 && chipIndex < this.items.length) {\n    this.items[chipIndex] = chipContents;\n    this.updateNgModel(true);\n  }\n};\n\n\n/**\n * @return {boolean} true if a chip is currently being edited. False otherwise.\n */\nMdChipsCtrl.prototype.isEditingChip = function() {\n  return !!this.$element[0].querySelector('._md-chip-editing');\n};\n\n/**\n * @param {string|Object} chip contents of a single chip\n * @returns {boolean} true if the chip is an Object, false otherwise.\n * @private\n */\nMdChipsCtrl.prototype._isChipObject = function(chip) {\n  return angular.isObject(chip);\n};\n\n/**\n * @returns {boolean} true if chips can be removed, false otherwise.\n */\nMdChipsCtrl.prototype.isRemovable = function() {\n  // Return false if we have static chips\n  if (!this.ngModelCtrl) {\n    return false;\n  }\n\n  return this.readonly ? this.removable :\n         angular.isDefined(this.removable) ? this.removable : true;\n};\n\n/**\n * Handles the keydown event on the chip elements: backspace removes the selected chip, arrow\n * keys switch which chip is active.\n * @param {KeyboardEvent} event\n */\nMdChipsCtrl.prototype.chipKeydown = function (event) {\n  if (this.getChipBuffer()) return;\n  if (this.isEditingChip()) return;\n\n  switch (event.keyCode) {\n    case this.$mdConstant.KEY_CODE.BACKSPACE:\n    case this.$mdConstant.KEY_CODE.DELETE:\n      if (this.selectedChip < 0) return;\n      event.preventDefault();\n      // Cancel the delete action only after the event cancel. Otherwise the page will go back.\n      if (!this.isRemovable()) return;\n      this.removeAndSelectAdjacentChip(this.selectedChip, event);\n      break;\n    case this.$mdConstant.KEY_CODE.LEFT_ARROW:\n      event.preventDefault();\n      // By default, allow selection of -1 which will focus the input; if we're readonly, don't go\n      // below 0.\n      if (this.selectedChip < 0 || (this.readonly && this.selectedChip === 0)) {\n        this.selectedChip = this.items.length;\n      }\n      if (this.items.length) this.selectAndFocusChipSafe(this.selectedChip - 1);\n      break;\n    case this.$mdConstant.KEY_CODE.RIGHT_ARROW:\n      event.preventDefault();\n      this.selectAndFocusChipSafe(this.selectedChip + 1);\n      break;\n    case this.$mdConstant.KEY_CODE.ESCAPE:\n    case this.$mdConstant.KEY_CODE.TAB:\n      if (this.selectedChip < 0) return;\n      event.preventDefault();\n      this.onFocus();\n      break;\n  }\n};\n\n/**\n * Get the input's placeholder - uses `placeholder` when list is empty and `secondary-placeholder`\n * when the list is non-empty. If `secondary-placeholder` is not provided, `placeholder` is used\n * always.\n * @returns {string}\n */\nMdChipsCtrl.prototype.getPlaceholder = function() {\n  // Allow `secondary-placeholder` to be blank.\n  var useSecondary = (this.items && this.items.length &&\n      (this.secondaryPlaceholder === '' || this.secondaryPlaceholder));\n  return useSecondary ? this.secondaryPlaceholder : this.placeholder;\n};\n\n/**\n * Removes chip at {@code index} and selects the adjacent chip.\n * @param {number} index adjacent chip to select\n * @param {Event=} event\n */\nMdChipsCtrl.prototype.removeAndSelectAdjacentChip = function(index, event) {\n  var self = this;\n  var selIndex = self.getAdjacentChipIndex(index);\n  var wrap = this.$element[0].querySelector('md-chips-wrap');\n  var chip = this.$element[0].querySelector('md-chip[index=\"' + index + '\"]');\n\n  self.removeChip(index, event);\n\n  // The double-timeout is currently necessary to ensure that the DOM has finalized and the select()\n  // will find the proper chip since the selection is index-based.\n  //\n  // TODO: Investigate calling from within chip $scope.$on('$destroy') to reduce/remove timeouts\n  self.$timeout(function() {\n    self.$timeout(function() {\n      self.selectAndFocusChipSafe(selIndex);\n    });\n  });\n};\n\n/**\n * Sets the selected chip index to -1.\n */\nMdChipsCtrl.prototype.resetSelectedChip = function() {\n  this.selectedChip = -1;\n  this.ariaTabIndex = null;\n};\n\n/**\n * Gets the index of an adjacent chip to select after deletion. Adjacency is\n * determined as the next chip in the list, unless the target chip is the\n * last in the list, then it is the chip immediately preceding the target. If\n * there is only one item in the list, -1 is returned (select none).\n * The number returned is the index to select AFTER the target has been removed.\n * If the current chip is not selected, then -1 is returned to select none.\n * @param {number} index\n * @returns {number}\n */\nMdChipsCtrl.prototype.getAdjacentChipIndex = function(index) {\n  var len = this.items.length - 1;\n  return (len === 0) ? -1 :\n      (index === len) ? index - 1 : index;\n};\n\n/**\n * Append the contents of the buffer to the chip list. This method will first\n * call out to the md-transform-chip method, if provided.\n * @param {string} newChip chip buffer contents that will be used to create the new chip\n */\nMdChipsCtrl.prototype.appendChip = function(newChip) {\n  this.shouldFocusLastChip = !this.addOnBlur;\n  if (this.useTransformChip && this.transformChip) {\n    var transformedChip = this.transformChip({'$chip': newChip});\n\n    // Check to make sure the chip is defined before assigning it, otherwise, we'll just assume\n    // they want the string version.\n    if (angular.isDefined(transformedChip)) {\n      newChip = transformedChip;\n    }\n  }\n\n  // If items contains an identical object to newChip, do not append\n  if (angular.isObject(newChip)) {\n    var identical = this.items.some(function(item) {\n      return angular.equals(newChip, item);\n    });\n    if (identical) return;\n  }\n\n  // Check for a null (but not undefined), or existing chip and cancel appending\n  if (newChip == null || this.items.indexOf(newChip) + 1) return;\n\n  // Append the new chip onto our list\n  var length = this.items.push(newChip);\n  var index = length - 1;\n\n  this.updateNgModel();\n\n  // Tell screen reader users that the chip was successfully added.\n  // TODO add a way for developers to specify which field of the object should be announced here.\n  var chipContent = angular.isObject(newChip) ? '' : newChip;\n  this.$mdLiveAnnouncer.announce(chipContent + ' ' + this.addedMessage, 'assertive');\n\n  // If the md-on-add attribute is specified, send a chip addition event\n  if (this.useOnAdd && this.onAdd) {\n    this.onAdd({ '$chip': newChip, '$index': index });\n  }\n};\n\n/**\n * Sets whether to use the md-transform-chip expression. This expression is\n * bound to scope and controller in {@code MdChipsDirective} as\n * {@code transformChip}. Due to the nature of directive scope bindings, the\n * controller cannot know on its own/from the scope whether an expression was\n * actually provided.\n */\nMdChipsCtrl.prototype.useTransformChipExpression = function() {\n  this.useTransformChip = true;\n};\n\n/**\n * Sets whether to use the md-on-add expression. This expression is\n * bound to scope and controller in {@code MdChipsDirective} as\n * {@code onAdd}. Due to the nature of directive scope bindings, the\n * controller cannot know on its own/from the scope whether an expression was\n * actually provided.\n */\nMdChipsCtrl.prototype.useOnAddExpression = function() {\n  this.useOnAdd = true;\n};\n\n/**\n * Sets whether to use the md-on-remove expression. This expression is\n * bound to scope and controller in {@code MdChipsDirective} as\n * {@code onRemove}. Due to the nature of directive scope bindings, the\n * controller cannot know on its own/from the scope whether an expression was\n * actually provided.\n */\nMdChipsCtrl.prototype.useOnRemoveExpression = function() {\n  this.useOnRemove = true;\n};\n\n/**\n * Sets whether to use the md-on-select expression. This expression is\n * bound to scope and controller in {@code MdChipsDirective} as\n * {@code onSelect}. Due to the nature of directive scope bindings, the\n * controller cannot know on its own/from the scope whether an expression was\n * actually provided.\n */\nMdChipsCtrl.prototype.useOnSelectExpression = function() {\n  this.useOnSelect = true;\n};\n\n/**\n * Gets the input buffer. The input buffer can be the model bound to the\n * default input item {@code this.chipBuffer}, the {@code selectedItem}\n * model of an {@code md-autocomplete}, or, through some magic, the model\n * bound to any input or text area element found within a\n * {@code md-input-container} element.\n * @return {string} the input buffer\n */\nMdChipsCtrl.prototype.getChipBuffer = function() {\n  var chipBuffer =  !this.userInputElement ? this.chipBuffer :\n                     this.userInputNgModelCtrl ? this.userInputNgModelCtrl.$viewValue :\n                     this.userInputElement[0].value;\n\n  // Ensure that the chip buffer is always a string. For example, the input element buffer\n  // might be falsy.\n  return angular.isString(chipBuffer) ? chipBuffer : '';\n};\n\n/**\n * Resets the input buffer for either the internal input or user provided input element.\n */\nMdChipsCtrl.prototype.resetChipBuffer = function() {\n  if (this.userInputElement) {\n    if (this.userInputNgModelCtrl) {\n      this.userInputNgModelCtrl.$setViewValue('');\n      this.userInputNgModelCtrl.$render();\n    } else {\n      this.userInputElement[0].value = '';\n    }\n  } else {\n    this.chipBuffer = '';\n  }\n};\n\n/**\n * @returns {boolean} true if the max chips limit has been reached, false otherwise.\n */\nMdChipsCtrl.prototype.hasMaxChipsReached = function() {\n  if (angular.isString(this.maxChips)) {\n    this.maxChips = parseInt(this.maxChips, 10) || 0;\n  }\n\n  return this.maxChips > 0 && this.items.length >= this.maxChips;\n};\n\n/**\n * Updates the validity properties for the ngModel.\n *\n * TODO add the md-max-chips validator to this.ngModelCtrl.validators so that the validation will\n * be performed automatically.\n */\nMdChipsCtrl.prototype.validateModel = function() {\n  this.ngModelCtrl.$setValidity('md-max-chips', !this.hasMaxChipsReached());\n  this.ngModelCtrl.$validate(); // rerun any registered validators\n};\n\n/**\n * Function to handle updating the model, validation, and change notification when a chip\n * is added, removed, or changed.\n * @param {boolean=} skipValidation true to skip calling validateModel()\n */\nMdChipsCtrl.prototype.updateNgModel = function(skipValidation) {\n  if (!skipValidation) {\n    this.validateModel();\n  }\n  // This will trigger ng-change to fire, even in cases where $setViewValue() would not.\n  angular.forEach(this.ngModelCtrl.$viewChangeListeners, function(listener) {\n    try {\n      listener();\n    } catch (e) {\n      this.$exceptionHandler(e);\n    }\n  });\n};\n\n/**\n * Removes the chip at the given index.\n * @param {number} index of chip to remove\n * @param {Event=} event optionally passed to the onRemove callback\n */\nMdChipsCtrl.prototype.removeChip = function(index, event) {\n  var removed = this.items.splice(index, 1);\n\n  this.updateNgModel();\n  this.ngModelCtrl.$setDirty();\n\n  // Tell screen reader users that the chip was successfully removed.\n  // TODO add a way for developers to specify which field of the object should be announced here.\n  var chipContent = angular.isObject(removed[0]) ? '' : removed[0];\n  this.$mdLiveAnnouncer.announce(chipContent + ' ' + this.removedMessage, 'assertive');\n\n  if (removed && removed.length && this.useOnRemove && this.onRemove) {\n    this.onRemove({ '$chip': removed[0], '$index': index, '$event': event });\n  }\n};\n\n/**\n * @param {number} index location of chip to remove\n * @param {Event=} $event\n */\nMdChipsCtrl.prototype.removeChipAndFocusInput = function (index, $event) {\n  this.removeChip(index, $event);\n\n  if (this.autocompleteCtrl) {\n    // Always hide the autocomplete dropdown before focusing the autocomplete input.\n    // Wait for the input to move horizontally, because the chip was removed.\n    // This can lead to an incorrect dropdown position.\n    this.autocompleteCtrl.hidden = true;\n    this.$mdUtil.nextTick(this.onFocus.bind(this));\n  } else {\n    this.onFocus();\n  }\n\n};\n/**\n * Selects the chip at `index`,\n * @param {number} index location of chip to select and focus\n */\nMdChipsCtrl.prototype.selectAndFocusChipSafe = function(index) {\n  // If we have no chips, or are asked to select a chip before the first, just focus the input\n  if (!this.items.length || index === -1) {\n    return this.focusInput();\n  }\n\n  // If we are asked to select a chip greater than the number of chips...\n  if (index >= this.items.length) {\n    if (this.readonly) {\n      // If we are readonly, jump back to the start (because we have no input)\n      index = 0;\n    } else {\n      // If we are not readonly, we should attempt to focus the input\n      return this.onFocus();\n    }\n  }\n\n  index = Math.max(index, 0);\n  index = Math.min(index, this.items.length - 1);\n\n  this.selectChip(index);\n  this.focusChip(index);\n};\n\n/**\n * Focus last chip, then focus the input. This is needed for screen reader support.\n */\nMdChipsCtrl.prototype.focusLastChipThenInput = function() {\n  var ctrl = this;\n\n  ctrl.shouldFocusLastChip = false;\n\n  ctrl.focusChip(this.items.length - 1);\n\n  ctrl.$timeout(function() {\n    ctrl.focusInput();\n  }, ctrl.chipAppendDelay);\n};\n\n/**\n * Focus the input element.\n */\nMdChipsCtrl.prototype.focusInput = function() {\n  this.selectChip(-1);\n  this.onFocus();\n};\n\n/**\n * Marks the chip at the given index as selected.\n * @param {number} index location of chip to select\n */\nMdChipsCtrl.prototype.selectChip = function(index) {\n  if (index >= -1 && index <= this.items.length) {\n    this.selectedChip = index;\n\n    // Fire the onSelect if provided\n    if (this.useOnSelect && this.onSelect) {\n      this.onSelect({'$chip': this.items[index] });\n    }\n  } else {\n    this.$log.warn('Selected Chip index out of bounds; ignoring.');\n  }\n};\n\n/**\n * Call {@code focus()} on the chip at {@code index}\n * @param {number} index location of chip to focus\n */\nMdChipsCtrl.prototype.focusChip = function(index) {\n  var chipContent = this.$element[0].querySelector(\n    'md-chip[index=\"' + index + '\"] .md-chip-content'\n  );\n\n  this.ariaTabIndex = index;\n\n  chipContent.focus();\n};\n\n/**\n * Configures the required interactions with the ngModel Controller.\n * Specifically, set {@code this.items} to the {@code NgModelController#$viewValue}.\n * @param {NgModelController} ngModelCtrl\n */\nMdChipsCtrl.prototype.configureNgModel = function(ngModelCtrl) {\n  this.ngModelCtrl = ngModelCtrl;\n\n  var self = this;\n\n  // in chips the meaning of $isEmpty changes\n  ngModelCtrl.$isEmpty = function(value) {\n    return !value || value.length === 0;\n  };\n\n  ngModelCtrl.$render = function() {\n    // model is updated. do something.\n    self.items = self.ngModelCtrl.$viewValue;\n  };\n};\n\nMdChipsCtrl.prototype.onFocus = function () {\n  var input = this.$element[0].querySelector('input');\n  input && input.focus();\n  this.resetSelectedChip();\n};\n\nMdChipsCtrl.prototype.onInputFocus = function () {\n  this.inputHasFocus = true;\n\n  // Make sure we have the appropriate ARIA attributes\n  this.setupInputAria();\n\n  // Make sure we don't have any chips selected\n  this.resetSelectedChip();\n};\n\nMdChipsCtrl.prototype.onInputBlur = function () {\n  this.inputHasFocus = false;\n\n  if (this.shouldAddOnBlur()) {\n    this.appendChip(this.getChipBuffer().trim());\n    this.resetChipBuffer();\n  }\n};\n\n/**\n * Configure event bindings on input element.\n * @param {angular.element} inputElement\n */\nMdChipsCtrl.prototype.configureInput = function configureInput(inputElement) {\n  // Find the NgModelCtrl for the input element\n  var ngModelCtrl = inputElement.controller('ngModel');\n  var ctrl = this;\n\n  if (ngModelCtrl) {\n\n    // sync touched-state from inner input to chips-element\n    this.deRegister.push(\n      this.$scope.$watch(\n        function() {\n          return ngModelCtrl.$touched;\n        },\n        function(isTouched) {\n          isTouched && ctrl.ngModelCtrl.$setTouched();\n        }\n      )\n    );\n\n    // sync dirty-state from inner input to chips-element\n    this.deRegister.push(\n      this.$scope.$watch(\n        function() {\n          return ngModelCtrl.$dirty;\n        },\n        function(isDirty) {\n          isDirty && ctrl.ngModelCtrl.$setDirty();\n        }\n      )\n    );\n  }\n};\n\n/**\n * Configure event bindings on a user-provided input element.\n * @param {angular.element} inputElement\n */\nMdChipsCtrl.prototype.configureUserInput = function(inputElement) {\n  this.userInputElement = inputElement;\n\n  // Find the NgModelCtrl for the input element\n  var ngModelCtrl = inputElement.controller('ngModel');\n  // `.controller` will look in the parent as well.\n  if (ngModelCtrl !== this.ngModelCtrl) {\n    this.userInputNgModelCtrl = ngModelCtrl;\n  }\n\n  var scope = this.$scope;\n  var ctrl = this;\n\n  // Run all of the events using evalAsync because a focus may fire a blur in the same digest loop\n  var scopeApplyFn = function(event, fn) {\n    scope.$evalAsync(angular.bind(ctrl, fn, event));\n  };\n\n  // Bind to keydown and focus events of input\n  inputElement\n      .attr({ tabindex: 0 })\n      .on('keydown', function(event) { scopeApplyFn(event, ctrl.inputKeydown); })\n      .on('focus', function(event) { scopeApplyFn(event, ctrl.onInputFocus); })\n      .on('blur', function(event) { scopeApplyFn(event, ctrl.onInputBlur); });\n};\n\n/**\n * @param {MdAutocompleteCtrl} ctrl controller from the autocomplete component\n */\nMdChipsCtrl.prototype.configureAutocomplete = function(ctrl) {\n  if (ctrl) {\n    this.autocompleteCtrl = ctrl;\n    // Update the default container empty hint when we're inside of an autocomplete.\n    if (!this.$element.attr('container-empty-hint')) {\n      this.containerEmptyHint = 'Chips container with autocompletion. Enter the text area, ' +\n        'type text to search, and then use the up and down arrow keys to select an option. ' +\n        'Press enter to add the selected option as a chip.';\n      this.setupWrapperAria();\n    }\n\n    ctrl.registerSelectedItemWatcher(angular.bind(this, function (item) {\n      if (item) {\n        // Only append the chip and reset the chip buffer if the max chips limit isn't reached.\n        if (this.hasMaxChipsReached()) return;\n\n        this.appendChip(item);\n        this.resetChipBuffer();\n      }\n    }));\n\n    this.$element.find('input')\n        .on('focus',angular.bind(this, this.onInputFocus))\n        .on('blur', angular.bind(this, this.onInputBlur));\n  }\n};\n\n/**\n * @returns {boolean} Whether the current chip buffer should be added on input blur or not.\n */\nMdChipsCtrl.prototype.shouldAddOnBlur = function() {\n\n  // Update the custom ngModel validators from the chips component.\n  this.validateModel();\n\n  var chipBuffer = this.getChipBuffer().trim();\n  // If the model value is empty and required is set on the element, then the model will be invalid.\n  // In that case, we still want to allow adding the chip. The main (but not only) case we want\n  // to disallow is adding a chip on blur when md-max-chips validation fails.\n  var isModelValid = this.ngModelCtrl.$isEmpty(this.ngModelCtrl.$modelValue) ||\n    this.ngModelCtrl.$valid;\n  var isAutocompleteShowing = this.autocompleteCtrl && !this.autocompleteCtrl.hidden;\n\n  if (this.userInputNgModelCtrl) {\n    isModelValid = isModelValid && this.userInputNgModelCtrl.$valid;\n  }\n\n  return this.addOnBlur && !this.requireMatch && chipBuffer && isModelValid &&\n    !isAutocompleteShowing;\n};\n\n/**\n * @returns {boolean} true if the input or a chip is focused. False otherwise.\n */\nMdChipsCtrl.prototype.hasFocus = function () {\n  return this.inputHasFocus || this.selectedChip >= 0;\n};\n\n/**\n * @param {number} index location of content id\n * @returns {number} unique id for the aria-owns attribute\n */\nMdChipsCtrl.prototype.contentIdFor = function(index) {\n  return this.contentIds[index];\n};\n\n})();\n(function(){\n\"use strict\";\n\n  \n  MdChips.$inject = [\"$mdTheming\", \"$mdUtil\", \"$compile\", \"$log\", \"$timeout\", \"$$mdSvgRegistry\"];angular\n      .module('material.components.chips')\n      .directive('mdChips', MdChips);\n\n  /**\n   * @ngdoc directive\n   * @name mdChips\n   * @module material.components.chips\n   *\n   * @description\n   * `<md-chips>` is an input component for building lists of strings or objects. The list items are\n   * displayed as 'chips'. This component can make use of an `<input>` element or an\n   * `<md-autocomplete>` element.\n   *\n   * ### Custom templates\n   * A custom template may be provided to render the content of each chip. This is achieved by\n   * specifying an `<md-chip-template>` element containing the custom content as a child of\n   * `<md-chips>`.\n   *\n   * Note: Any attributes on\n   * `<md-chip-template>` will be dropped as only the innerHTML is used for the chip template. The\n   * variables `$chip` and `$index` are available in the scope of `<md-chip-template>`, representing\n   * the chip object and its index in the list of chips, respectively.\n   * To override the chip delete control, include an element (ideally a button) with the attribute\n   * `md-chip-remove`. A click listener to remove the chip will be added automatically. The element\n   * is also placed as a sibling to the chip content (on which there are also click listeners) to\n   * avoid a nested ng-click situation.\n   *\n   * <!-- Note: We no longer want to include this in the site docs; but it should remain here for\n   * future developers and those looking at the documentation.\n   *\n   * <h3> Pending Features </h3>\n   * <ul style=\"padding-left:20px;\">\n   *\n   *   <ul>Style\n   *     <li>Colors for hover, press states (ripple?).</li>\n   *   </ul>\n   *\n   *   <ul>Validation\n   *     <li>allow a validation callback</li>\n   *     <li>highlighting style for invalid chips</li>\n   *   </ul>\n   *\n   *   <ul>Item mutation\n   *     <li>Support `\n   *       <md-chip-edit>` template, show/hide the edit element on tap/click? double tap/double\n   *       click?\n   *     </li>\n   *   </ul>\n   *\n   *   <ul>Truncation and Disambiguation (?)\n   *     <li>Truncate chip text where possible, but do not truncate entries such that two are\n   *     indistinguishable.</li>\n   *   </ul>\n   *\n   *   <ul>Drag and Drop\n   *     <li>Drag and drop chips between related `<md-chips>` elements.\n   *     </li>\n   *   </ul>\n   * </ul>\n   *\n   * //-->\n   *\n   * Sometimes developers want to limit the amount of possible chips.<br/>\n   * You can specify the maximum amount of chips by using the following markup.\n   *\n   * <hljs lang=\"html\">\n   *   <md-chips\n   *       ng-model=\"myItems\"\n   *       placeholder=\"Add an item\"\n   *       md-max-chips=\"5\">\n   *   </md-chips>\n   * </hljs>\n   *\n   * In some cases, you have an autocomplete inside of the `md-chips`.<br/>\n   * When the maximum amount of chips has been reached, you can also disable the autocomplete\n   * selection.<br/>\n   * Here is an example markup.\n   *\n   * <hljs lang=\"html\">\n   *   <md-chips ng-model=\"myItems\" md-max-chips=\"5\">\n   *     <md-autocomplete ng-hide=\"myItems.length > 5\" ...></md-autocomplete>\n   *   </md-chips>\n   * </hljs>\n   *\n   * ### Accessibility\n   *\n   * The `md-chips` component supports keyboard and screen reader users since Version 1.1.2. In\n   * order to achieve this, we modified the chips behavior to select newly appended chips for\n   * `300ms` before re-focusing the input and allowing the user to type.\n   *\n   * For most users, this delay is small enough that it will not be noticeable but allows certain\n   * screen readers to function properly (JAWS and NVDA in particular).\n   *\n   * We introduced a new `md-chip-append-delay` option to allow developers to better control this\n   * behavior.\n   *\n   * Please refer to the documentation of this option (below) for more information.\n   *\n   * @param {expression} ng-model Assignable AngularJS expression to be data-bound to the list of\n   *    chips. The expression should evaluate to a `string` or `Object` Array. The type of this\n   *    array should align with the return value of `md-transform-chip`.\n   * @param {expression=} ng-change AngularJS expression to be executed on chip addition, removal,\n   *    or content change.\n   * @param {string=} placeholder Placeholder text that will be forwarded to the input.\n   * @param {string=} secondary-placeholder Placeholder text that will be forwarded to the input,\n   *    displayed when there is at least one item in the list\n   * @param {boolean=} md-removable Enables or disables the deletion of chips through the\n   *    removal icon or the Delete/Backspace key. Defaults to true.\n   * @param {boolean=} readonly Disables list manipulation (deleting or adding list items), hiding\n   *    the input and delete buttons. If no `ng-model` is provided, the chips will automatically be\n   *    marked as readonly.<br/><br/>\n   *    When `md-removable` is not defined, the `md-remove` behavior will be overwritten and\n   *    disabled.\n   * @param {boolean=} md-enable-chip-edit Set this to `\"true\"` to enable editing of chip contents.\n   *    The user can go into edit mode by pressing the `space` or `enter` keys, or by double\n   *    clicking on the chip. Chip editing is only supported for chips using the basic template.\n   *    **Note:** This attribute is only evaluated once; it is not watched.\n   * @param {boolean=} ng-required Whether ng-model is allowed to be empty or not.\n   * @param {number=} md-max-chips The maximum number of chips allowed to add through user input.\n   *    <br/><br/>The validation property `md-max-chips` can be used when the max chips\n   *    amount is reached.\n   * @param {boolean=} md-add-on-blur When set to `\"true\"`, the remaining text inside of the input\n   *    will be converted into a new chip on blur.\n   *    **Note:** This attribute is only evaluated once; it is not watched.\n   * @param {expression} md-transform-chip An expression of form `myFunction($chip)` that when\n   *    called expects one of the following return values:\n   *    - an object representing the `$chip` input string\n   *    - `undefined` to simply add the `$chip` input string, or\n   *    - `null` to prevent the chip from being appended\n   * @param {expression=} md-on-add An expression which will be called when a chip has been\n   *    added with `$chip` and `$index` available as parameters.\n   * @param {expression=} md-on-remove An expression which will be called when a chip has been\n   *    removed with `$chip`, `$index`, and `$event` available as parameters.\n   * @param {expression=} md-on-select An expression which will be called when a chip is selected.\n   * @param {boolean=} md-require-match If true, and the chips template contains an autocomplete,\n   *    only allow selection of pre-defined chips (i.e. you cannot add new ones).\n   * @param {string=} md-input-class This class will be applied to the child input for custom\n   *    styling. If you are using an `md-autocomplete`, then you need to put this attribute on the\n   *    `md-autocomplete` rather than the `md-chips`.\n   * @param {string=} input-aria-describedby A space-separated list of element IDs. This should\n   *     contain the IDs of any elements that describe this autocomplete. Screen readers will read\n   *     the content of these elements at the end of announcing that the chips input has been\n   *     selected and describing its current state. The descriptive elements do not need to be\n   *     visible on the page.\n   * @param {string=} input-aria-labelledby A space-separated list of element IDs. The ideal use\n   *    case is that this would contain the ID of a `<label>` element that is associated with these\n   *    chips.<br><br>\n   *    For `<label id=\"state\">US State</label>`, you would set this to\n   *    `input-aria-labelledby=\"state\"`.\n   * @param {string=} input-aria-label A string read by screen readers to identify the input.\n   *    For static chips, this will be applied to the chips container.\n   * @param {string=} container-hint A string read by screen readers informing users of how to\n   *    navigate the chips when there are chips. Only applies when `ng-model` is defined.\n   * @param {string=} container-empty-hint A string read by screen readers informing users of how to\n   *    add chips when there are no chips. You will want to use this to override the default when\n   *    in a non-English locale. Only applies when `ng-model` is defined.\n   * @param {string=} delete-hint A string read by screen readers instructing users that pressing\n   *    the delete key will remove the chip. You will want to use this to override the default when\n   *    in a non-English locale.\n   * @param {string=} delete-button-label Text for the `aria-label` of the button with the\n   *    `md-chip-remove` class. If the chip is an Object, then this will be the only text in the\n   *    label. Otherwise, this is prepended to the string representation of the chip. Defaults to\n   *    \"Remove\", which would be \"Remove Apple\" for a chip that contained the string \"Apple\".\n   *    You will want to use this to override the default when in a non-English locale.\n   * @param {string=} md-removed-message Screen readers will announce this message following the\n   *    chips contents. The default is `\"removed\"`. If a chip with the content of \"Apple\" was\n   *    removed, the screen reader would read \"Apple removed\". You will want to use this to override\n   *    the default when in a non-English locale.\n   * @param {string=} md-added-message Screen readers will announce this message following the\n   *    chips contents. The default is `\"added\"`. If a chip with the content of \"Apple\" was\n   *    created, the screen reader would read \"Apple added\". You will want to use this to override\n   *    the default when in a non-English locale.\n   * @param {expression=} md-separator-keys An array of key codes used to separate chips.\n   * @param {string=} md-chip-append-delay The number of milliseconds that the component will select\n   *    a newly appended chip before allowing a user to type into the input. This is **necessary**\n   *    for keyboard accessibility for screen readers. It defaults to 300ms and any number less than\n   *    300 can cause issues with screen readers (particularly JAWS and sometimes NVDA).\n   *\n   *    _Available since Version 1.1.2._\n   *\n   *    **Note:** You can safely set this to `0` in one of the following two instances:\n   *\n   *    1. You are targeting an iOS or Safari-only application (where users would use VoiceOver) or\n   *    only ChromeVox users.\n   *\n   *    2. If you have utilized the `md-separator-keys` to disable the `enter` keystroke in\n   *    favor of another one (such as `,` or `;`).\n   *\n   * @usage\n   * <hljs lang=\"html\">\n   *   <md-chips\n   *       ng-model=\"myItems\"\n   *       placeholder=\"Add an item\"\n   *       readonly=\"isReadOnly\">\n   *   </md-chips>\n   * </hljs>\n   *\n   * <h3>Validation</h3>\n   * When using [ngMessages](https://docs.angularjs.org/api/ngMessages), you can show errors based\n   * on our custom validators.\n   * <hljs lang=\"html\">\n   *   <form name=\"userForm\">\n   *     <md-chips\n   *       name=\"fruits\"\n   *       ng-model=\"myItems\"\n   *       placeholder=\"Add an item\"\n   *       md-max-chips=\"5\">\n   *     </md-chips>\n   *     <div ng-messages=\"userForm.fruits.$error\" ng-if=\"userForm.$dirty\">\n   *       <div ng-message=\"md-max-chips\">You reached the maximum amount of chips</div>\n   *    </div>\n   *   </form>\n   * </hljs>\n   *\n   */\n\n  // TODO add a way for developers to specify which field of the object should used in the\n  // aria-label.\n  var MD_CHIPS_TEMPLATE = '\\\n      <md-chips-wrap\\\n          id=\"{{$mdChipsCtrl.wrapperId}}\"\\\n          tabindex=\"{{$mdChipsCtrl.readonly ? 0 : -1}}\"\\\n          ng-keydown=\"$mdChipsCtrl.chipKeydown($event)\"\\\n          ng-class=\"{ \\'md-focused\\': $mdChipsCtrl.hasFocus(), \\\n                      \\'md-readonly\\': !$mdChipsCtrl.ngModelCtrl || $mdChipsCtrl.readonly,\\\n                      \\'md-removable\\': $mdChipsCtrl.isRemovable() }\"\\\n          class=\"md-chips\">\\\n        <md-chip ng-repeat=\"$chip in $mdChipsCtrl.items\"\\\n            index=\"{{$index}}\" \\\n            ng-class=\"{\\'md-focused\\': $mdChipsCtrl.selectedChip == $index, \\'md-readonly\\': !$mdChipsCtrl.ngModelCtrl || $mdChipsCtrl.readonly}\">\\\n          <div class=\"md-chip-content\"\\\n              tabindex=\"{{$mdChipsCtrl.ariaTabIndex === $index ? 0 : -1}}\"\\\n              id=\"{{$mdChipsCtrl.contentIdFor($index)}}\"\\\n              role=\"option\"\\\n              aria-selected=\"{{$mdChipsCtrl.selectedChip === $index}}\"\\\n              aria-setsize=\"{{$mdChipsCtrl.items.length}}\"\\\n              aria-posinset=\"{{$index+1}}\"\\\n              ng-click=\"!$mdChipsCtrl.readonly && $mdChipsCtrl.focusChip($index)\"\\\n              aria-label=\"{{$mdChipsCtrl._isChipObject($chip) ? \\'\\' : $chip + \\'. \\'}}{{$mdChipsCtrl.isRemovable() ? \\'\\' + $mdChipsCtrl.deleteHint : \\'\\'}}\" \\\n              ng-focus=\"!$mdChipsCtrl.readonly && $mdChipsCtrl.selectChip($index)\"\\\n              md-chip-transclude=\"$mdChipsCtrl.chipContentsTemplate\"></div>\\\n          <div ng-if=\"$mdChipsCtrl.isRemovable()\"\\\n               class=\"md-chip-remove-container\"\\\n               tabindex=\"-1\"\\\n               md-chip-transclude=\"$mdChipsCtrl.chipRemoveTemplate\"></div>\\\n        </md-chip>\\\n        <div class=\"md-chip-input-container\" ng-if=\"!$mdChipsCtrl.readonly && $mdChipsCtrl.ngModelCtrl\">\\\n          <div md-chip-transclude=\"$mdChipsCtrl.chipInputTemplate\"></div>\\\n        </div>\\\n      </md-chips-wrap>';\n\n  var CHIP_INPUT_TEMPLATE = '\\\n        <input\\\n            class=\"md-input{{ $mdChipsCtrl.inputClass ? \\' \\' + $mdChipsCtrl.inputClass: \\'\\'}}\"\\\n            tabindex=\"0\"\\\n            aria-label=\"{{$mdChipsCtrl.inputAriaLabel}}\"\\\n            placeholder=\"{{$mdChipsCtrl.getPlaceholder()}}\"\\\n            ng-model=\"$mdChipsCtrl.chipBuffer\"\\\n            ng-focus=\"$mdChipsCtrl.onInputFocus()\"\\\n            ng-blur=\"$mdChipsCtrl.onInputBlur()\"\\\n            ng-keydown=\"$mdChipsCtrl.inputKeydown($event)\">';\n\n  var CHIP_DEFAULT_TEMPLATE = '\\\n      <span>{{$chip}}</span>';\n\n  var CHIP_REMOVE_TEMPLATE = '\\\n      <button\\\n          class=\"md-chip-remove\"\\\n          ng-if=\"$mdChipsCtrl.isRemovable()\"\\\n          ng-click=\"$mdChipsCtrl.removeChipAndFocusInput($$replacedScope.$index, $event)\"\\\n          type=\"button\"\\\n          tabindex=\"-1\"\\\n          aria-label=\"{{$mdChipsCtrl.deleteButtonLabel}}{{$mdChipsCtrl._isChipObject($chip) ? \\'\\' : \\' \\' + $chip}}\">\\\n        <md-icon md-svg-src=\"{{$mdChipsCtrl.mdCloseIcon}}\" aria-hidden=\"true\"></md-icon>\\\n      </button>';\n\n  /**\n   * MDChips Directive Definition\n   */\n  function MdChips ($mdTheming, $mdUtil, $compile, $log, $timeout, $$mdSvgRegistry) {\n    // Run our templates through $mdUtil.processTemplate() to allow custom start/end symbols\n    var templates = getTemplates();\n\n    return {\n      template: function(element, attrs) {\n        // Clone the element into an attribute. By prepending the attribute\n        // name with '$', AngularJS won't write it into the DOM. The cloned\n        // element propagates to the link function via the attrs argument,\n        // where various contained-elements can be consumed.\n        attrs['$mdUserTemplate'] = element.clone();\n        return templates.chips;\n      },\n      require: ['mdChips'],\n      restrict: 'E',\n      controller: 'MdChipsCtrl',\n      controllerAs: '$mdChipsCtrl',\n      bindToController: true,\n      compile: compile,\n      scope: {\n        readonly: '=?readonly',\n        removable: '=?mdRemovable',\n        placeholder: '@?',\n        secondaryPlaceholder: '@?',\n        maxChips: '@?mdMaxChips',\n        transformChip: '&mdTransformChip',\n        onAdd: '&?mdOnAdd',\n        onRemove: '&?mdOnRemove',\n        addedMessage: '@?mdAddedMessage',\n        removedMessage: '@?mdRemovedMessage',\n        onSelect: '&?mdOnSelect',\n        inputClass: '@?mdInputClass',\n        inputAriaDescribedBy: '@?inputAriaDescribedby',\n        inputAriaLabelledBy: '@?inputAriaLabelledby',\n        inputAriaLabel: '@?',\n        containerHint: '@?',\n        containerEmptyHint: '@?',\n        deleteHint: '@?',\n        deleteButtonLabel: '@?',\n        separatorKeys: '=?mdSeparatorKeys',\n        requireMatch: '=?mdRequireMatch',\n        chipAppendDelayString: '@?mdChipAppendDelay',\n        ngChange: '&?'\n      }\n    };\n\n    /**\n     * Builds the final template for `md-chips` and returns the postLink function.\n     *\n     * Building the template involves 3 key components:\n     * static chips\n     * chip template\n     * input control\n     *\n     * If no `ng-model` is provided, only the static chip work needs to be done.\n     *\n     * If no user-passed `md-chip-template` exists, the default template is used. This resulting\n     * template is appended to the chip content element.\n     *\n     * The remove button may be overridden by passing an element with an md-chip-remove attribute.\n     *\n     * If an `input` or `md-autocomplete` element is provided by the caller, it is set aside for\n     * transclusion later. The transclusion happens in `postLink` as the parent scope is required.\n     * If no user input is provided, a default one is appended to the input container node in the\n     * template.\n     *\n     * Static Chips (i.e. `md-chip` elements passed from the caller) are gathered and set aside for\n     * transclusion in the `postLink` function.\n     *\n     *\n     * @param element\n     * @param attr\n     * @returns {Function}\n     */\n    function compile(element, attr) {\n      // Grab the user template from attr and reset the attribute to null.\n      var userTemplate = attr['$mdUserTemplate'];\n      attr['$mdUserTemplate'] = null;\n\n      var chipTemplate = getTemplateByQuery('md-chips>md-chip-template');\n\n      var chipRemoveSelector = $mdUtil\n        .prefixer()\n        .buildList('md-chip-remove')\n        .map(function(attr) {\n          return 'md-chips>*[' + attr + ']';\n        })\n        .join(',');\n\n      // Set the chip remove, chip contents and chip input templates. The link function will put\n      // them on the scope for transclusion later.\n      var chipRemoveTemplate   = getTemplateByQuery(chipRemoveSelector) || templates.remove,\n          chipContentsTemplate = chipTemplate || templates.default,\n          chipInputTemplate    = getTemplateByQuery('md-chips>md-autocomplete')\n              || getTemplateByQuery('md-chips>input')\n              || templates.input,\n          staticChips = userTemplate.find('md-chip');\n\n      // Warn of malformed template. See #2545\n      if (userTemplate[0].querySelector('md-chip-template>*[md-chip-remove]')) {\n        $log.warn('invalid placement of md-chip-remove within md-chip-template.');\n      }\n\n      function getTemplateByQuery (query) {\n        if (!attr.ngModel) return;\n        var element = userTemplate[0].querySelector(query);\n        return element && element.outerHTML;\n      }\n\n      /**\n       * Configures controller and transcludes.\n       */\n      return function postLink(scope, element, attrs, controllers) {\n        $mdUtil.initOptionalProperties(scope, attr);\n\n        $mdTheming(element);\n        var mdChipsCtrl = controllers[0];\n        if (chipTemplate) {\n          // Chip editing functionality assumes we are using the default chip template.\n          mdChipsCtrl.enableChipEdit = false;\n        }\n\n        mdChipsCtrl.chipContentsTemplate = chipContentsTemplate;\n        mdChipsCtrl.chipRemoveTemplate   = chipRemoveTemplate;\n        mdChipsCtrl.chipInputTemplate    = chipInputTemplate;\n\n        mdChipsCtrl.mdCloseIcon = $$mdSvgRegistry.mdCancel;\n\n        element\n            .attr({ tabindex: -1 })\n            .on('focus', function () { mdChipsCtrl.onFocus(); })\n            .on('click', function () {\n              if (!mdChipsCtrl.readonly && mdChipsCtrl.selectedChip === -1) {\n                mdChipsCtrl.onFocus();\n              }\n            });\n\n        if (attr.ngModel) {\n          mdChipsCtrl.configureNgModel(element.controller('ngModel'));\n\n          // If an `md-transform-chip` attribute was set, tell the controller to use the expression\n          // before appending chips.\n          if (attrs.mdTransformChip) mdChipsCtrl.useTransformChipExpression();\n\n          // If an `md-on-add` attribute was set, tell the controller to use the expression\n          // when adding chips.\n          if (attrs.mdOnAdd) mdChipsCtrl.useOnAddExpression();\n\n          // If an `md-on-remove` attribute was set, tell the controller to use the expression\n          // when removing chips.\n          if (attrs.mdOnRemove) mdChipsCtrl.useOnRemoveExpression();\n\n          // If an `md-on-select` attribute was set, tell the controller to use the expression\n          // when selecting chips.\n          if (attrs.mdOnSelect) mdChipsCtrl.useOnSelectExpression();\n\n          // The md-autocomplete and input elements won't be compiled until after this directive\n          // is complete (due to their nested nature). Wait a tick before looking for them to\n          // configure the controller.\n          if (chipInputTemplate !== templates.input) {\n            // The autocomplete will not appear until the readonly attribute is not true (i.e.\n            // false or undefined), so we have to watch the readonly and then on the next tick\n            // after the chip transclusion has run, we can configure the autocomplete and user\n            // input.\n            scope.$watch('$mdChipsCtrl.readonly', function(readonly) {\n              if (!readonly) {\n\n                $mdUtil.nextTick(function(){\n\n                  if (chipInputTemplate.indexOf('<md-autocomplete') === 0) {\n                    var autocompleteEl = element.find('md-autocomplete');\n                    mdChipsCtrl.configureAutocomplete(autocompleteEl.controller('mdAutocomplete'));\n                  }\n\n                  mdChipsCtrl.configureUserInput(element.find('input'));\n                });\n              }\n            });\n          }\n\n          // At the next tick, if we find an input, make sure it has the md-input class\n          $mdUtil.nextTick(function() {\n            var input = element.find('input');\n\n            if (input) {\n              mdChipsCtrl.configureInput(input);\n              input.toggleClass('md-input', true);\n            }\n          });\n        }\n\n        // Compile with the parent's scope and prepend any static chips to the wrapper.\n        if (staticChips.length > 0) {\n          var compiledStaticChips = $compile(staticChips.clone())(scope.$parent);\n          $timeout(function() { element.find('md-chips-wrap').prepend(compiledStaticChips); });\n        }\n      };\n    }\n\n    function getTemplates() {\n      return {\n        chips: $mdUtil.processTemplate(MD_CHIPS_TEMPLATE),\n        input: $mdUtil.processTemplate(CHIP_INPUT_TEMPLATE),\n        default: $mdUtil.processTemplate(CHIP_DEFAULT_TEMPLATE),\n        remove: $mdUtil.processTemplate(CHIP_REMOVE_TEMPLATE)\n      };\n    }\n  }\n\n})();\n(function(){\n\"use strict\";\n\n\nMdContactChipsCtrl.$inject = [\"$attrs\", \"$element\", \"$timeout\"];angular\n    .module('material.components.chips')\n    .controller('MdContactChipsCtrl', MdContactChipsCtrl);\n\n/**\n * Controller for the MdContactChips component\n * @constructor\n */\nfunction MdContactChipsCtrl ($attrs, $element, $timeout) {\n  /** @type {$element} */\n  this.$element = $element;\n\n  /** @type {$attrs} */\n  this.$attrs = $attrs;\n\n  /** @type {Function} */\n  this.$timeout = $timeout;\n\n  /** @type {Object} */\n  this.selectedItem = null;\n\n  /** @type {string} */\n  this.searchText = '';\n\n  /**\n   * Collection of functions to call to un-register watchers\n   * @type {Array}\n   */\n  this.deRegister = [];\n\n  this.init();\n}\n\nMdContactChipsCtrl.prototype.init = function() {\n  var ctrl = this;\n  var deRegister = this.deRegister;\n  var element = this.$element;\n\n  // Setup a watcher which manages chips a11y messages and autocomplete aria.\n  // Timeout required to allow the child elements to be compiled.\n  this.$timeout(function() {\n    deRegister.push(\n      element.find('md-chips').controller('mdChips').$scope.$watchCollection('$mdChipsCtrl.items', function() {\n        // Make sure our input and wrapper have the correct ARIA attributes\n        ctrl.setupChipsAria();\n        ctrl.setupAutocompleteAria();\n      })\n    );\n  });\n};\n\nMdContactChipsCtrl.prototype.setupChipsAria = function() {\n  var chips = this.$element.find('md-chips');\n  var chipsCtrl = chips.controller('mdChips');\n\n  // Configure MdChipsCtrl\n  if (this.removedMessage) {\n    chipsCtrl.removedMessage = this.removedMessage;\n  }\n  if (this.containerHint) {\n    chipsCtrl.containerHint = this.containerHint;\n  }\n  if (this.containerEmptyHint) {\n    // Apply attribute to avoid the hint being overridden by MdChipsCtrl.configureAutocomplete()\n    chips.attr('container-empty-hint', this.containerEmptyHint);\n    chipsCtrl.containerEmptyHint = this.containerEmptyHint;\n  }\n  if (this.deleteHint) {\n    chipsCtrl.deleteHint = this.deleteHint;\n  }\n  if (this.inputAriaLabel) {\n    chipsCtrl.inputAriaLabel = this.inputAriaLabel;\n  }\n  if (this.inputClass) {\n    chipsCtrl.inputClass = this.inputClass;\n  }\n};\n\nMdContactChipsCtrl.prototype.setupAutocompleteAria = function() {\n  var autocompleteInput = this.$element.find('md-chips-wrap').find('md-autocomplete').find('input');\n\n  // Set attributes on the input of the md-autocomplete\n  if (this.inputAriaDescribedBy) {\n    autocompleteInput.attr('aria-describedby', this.inputAriaDescribedBy);\n  }\n  if (this.inputAriaLabelledBy) {\n    autocompleteInput.removeAttr('aria-label');\n    autocompleteInput.attr('aria-labelledby', this.inputAriaLabelledBy);\n  }\n};\n\nMdContactChipsCtrl.prototype.queryContact = function(searchText) {\n  return this.contactQuery({'$query': searchText});\n};\n\nMdContactChipsCtrl.prototype.inputKeydown = function(event) {\n  if (!this.separatorKeys || this.separatorKeys.indexOf(event.keyCode) < 0) {\n    return;\n  }\n\n  event.stopPropagation();\n  event.preventDefault();\n\n  var autocompleteCtrl = angular.element(event.target).controller('mdAutocomplete');\n  autocompleteCtrl.select(autocompleteCtrl.index);\n};\n\nMdContactChipsCtrl.prototype.itemName = function(item) {\n  return item[this.contactName];\n};\n\n/**\n * Destructor for cleanup\n */\nMdContactChipsCtrl.prototype.$onDestroy = function $onDestroy() {\n  var $destroyFn;\n  while (($destroyFn = this.deRegister.pop())) {\n    $destroyFn.call(this);\n  }\n};\n\n})();\n(function(){\n\"use strict\";\n\n\nMdContactChips.$inject = [\"$mdTheming\", \"$mdUtil\"];angular\n  .module('material.components.chips')\n  .directive('mdContactChips', MdContactChips);\n\n/**\n * @ngdoc directive\n * @name mdContactChips\n * @module material.components.chips\n *\n * @description\n * `<md-contact-chips>` is an input component based on `md-chips` and makes use of an\n * `md-autocomplete` element. The component allows the caller to supply a query expression which\n * returns  a list of possible contacts. The user can select one of these and add it to the list of\n * chips.\n *\n * You may also use the <a ng-href=\"api/directive/mdHighlightText\">md-highlight-flags</a> attribute\n * along with its parameters to control the appearance of the matched text inside of the contacts'\n * autocomplete popup.\n *\n * @param {expression} ng-model Assignable AngularJS expression to be data-bound to the list of\n *    contact chips. The expression should evaluate to an `Object` Array.\n * @param {expression=} ng-change AngularJS expression to be executed on chip addition, removal,\n *    or content change.\n * @param {string=} placeholder Placeholder text that will be forwarded to the input.\n * @param {string=} secondary-placeholder Placeholder text that will be forwarded to the input,\n *    displayed when there is at least on item in the list\n * @param {expression} md-contacts An expression expected to return contacts matching the search\n *    test, `$query`. If this expression involves a promise, a loading bar is displayed while\n *    waiting for it to resolve.\n * @param {string} md-contact-name The field name of the contact object representing the\n *    contact's name.\n * @param {string} md-contact-email The field name of the contact object representing the\n *    contact's email address.\n * @param {string} md-contact-image The field name of the contact object representing the\n *    contact's image.\n * @param {number=} md-max-chips The maximum number of chips allowed to add through user input.\n *    <br/><br/>The validation property `md-max-chips` can be used when the max chips\n *    amount is reached.\n * @param {number=} md-min-length Specifies the minimum length of text before autocomplete will\n *    make suggestions\n * @param {string=} md-input-class This class will be applied to the child `md-autocomplete` for\n *    custom styling.\n * @param {string=} input-aria-describedby A space-separated list of element IDs. This should\n *     contain the IDs of any elements that describe this autocomplete. Screen readers will read\n *     the content of these elements at the end of announcing that the chips input has been\n *     selected and describing its current state. The descriptive elements do not need to be\n *     visible on the page.\n * @param {string=} input-aria-labelledby A space-separated list of element IDs. The ideal use\n *    case is that this would contain the ID of a `<label>` element that is associated with these\n *    chips.<br><br>\n *    For `<label id=\"state\">US State</label>`, you would set this to\n *    `input-aria-labelledby=\"state\"`.\n * @param {string=} input-aria-label A string read by screen readers to identify the input.\n *    For static chips, this will be applied to the chips container.\n * @param {string=} container-hint A string read by screen readers informing users of how to\n *    navigate the chips when there are chips.\n * @param {string=} container-empty-hint A string read by screen readers informing users of how to\n *    add chips when there are no chips. You will want to use this to override the default when\n *    in a non-English locale.\n * @param {string=} delete-hint A string read by screen readers instructing users that pressing\n *    the delete key will remove the chip. You will want to use this to override the default when\n *    in a non-English locale.\n * @param {string=} md-removed-message Screen readers will announce this message following the\n *    chips contents. The default is `\"removed\"`. If a chip with the content of \"Apple\" was\n *    removed, the screen reader would read \"Apple removed\". You will want to use this to override\n *    the default when in a non-English locale.\n *\n *\n * @usage\n * <hljs lang=\"html\">\n *   <md-contact-chips\n *       ng-model=\"ctrl.contacts\"\n *       md-contacts=\"ctrl.querySearch($query)\"\n *       md-contact-name=\"name\"\n *       md-contact-image=\"image\"\n *       md-contact-email=\"email\"\n *       placeholder=\"To\">\n *   </md-contact-chips>\n * </hljs>\n *\n */\n\n\nvar MD_CONTACT_CHIPS_TEMPLATE = '\\\n      <md-chips class=\"md-contact-chips\"\\\n          ng-model=\"$mdContactChipsCtrl.contacts\"\\\n          ng-change=\"$mdContactChipsCtrl.ngChange($mdContactChipsCtrl.contacts)\"\\\n          md-require-match=\"$mdContactChipsCtrl.requireMatch\"\\\n          md-max-chips=\"{{$mdContactChipsCtrl.maxChips}}\"\\\n          md-chip-append-delay=\"{{$mdContactChipsCtrl.chipAppendDelay}}\"\\\n          md-separator-keys=\"$mdContactChipsCtrl.separatorKeys\"\\\n          md-autocomplete-snap>\\\n          <md-autocomplete\\\n              md-menu-class=\"md-contact-chips-suggestions\"\\\n              md-selected-item=\"$mdContactChipsCtrl.selectedItem\"\\\n              md-search-text=\"$mdContactChipsCtrl.searchText\"\\\n              md-items=\"item in $mdContactChipsCtrl.queryContact($mdContactChipsCtrl.searchText)\"\\\n              md-item-text=\"$mdContactChipsCtrl.itemName(item)\"\\\n              md-no-cache=\"true\"\\\n              md-min-length=\"$mdContactChipsCtrl.minLength\"\\\n              md-autoselect\\\n              ng-attr-md-input-class=\"{{$mdContactChipsCtrl.inputClass}}\"\\\n              ng-keydown=\"$mdContactChipsCtrl.inputKeydown($event)\"\\\n              placeholder=\"{{$mdContactChipsCtrl.contacts.length === 0 ?\\\n                  $mdContactChipsCtrl.placeholder : $mdContactChipsCtrl.secondaryPlaceholder}}\">\\\n            <div class=\"md-contact-suggestion\">\\\n              <img \\\n                  ng-src=\"{{item[$mdContactChipsCtrl.contactImage]}}\"\\\n                  alt=\"{{item[$mdContactChipsCtrl.contactName]}}\"\\\n                  ng-if=\"item[$mdContactChipsCtrl.contactImage]\" />\\\n              <span class=\"md-contact-name\" md-highlight-text=\"$mdContactChipsCtrl.searchText\"\\\n                    md-highlight-flags=\"{{$mdContactChipsCtrl.highlightFlags}}\">\\\n                {{item[$mdContactChipsCtrl.contactName]}}\\\n              </span>\\\n              <span class=\"md-contact-email\" >{{item[$mdContactChipsCtrl.contactEmail]}}</span>\\\n            </div>\\\n          </md-autocomplete>\\\n          <md-chip-template>\\\n            <div class=\"md-contact-avatar\">\\\n              <img \\\n                  ng-src=\"{{$chip[$mdContactChipsCtrl.contactImage]}}\"\\\n                  alt=\"{{$chip[$mdContactChipsCtrl.contactName]}}\"\\\n                  ng-if=\"$chip[$mdContactChipsCtrl.contactImage]\" />\\\n            </div>\\\n            <div class=\"md-contact-name\">\\\n              {{$chip[$mdContactChipsCtrl.contactName]}}\\\n            </div>\\\n          </md-chip-template>\\\n      </md-chips>';\n\n\n/**\n * MDContactChips Directive Definition\n *\n * @param $mdTheming\n * @param $mdUtil\n * @returns {*}\n * @ngInject\n */\nfunction MdContactChips($mdTheming, $mdUtil) {\n  return {\n    template: function(element, attrs) {\n      return MD_CONTACT_CHIPS_TEMPLATE;\n    },\n    restrict: 'E',\n    controller: 'MdContactChipsCtrl',\n    controllerAs: '$mdContactChipsCtrl',\n    bindToController: true,\n    compile: compile,\n    scope: {\n      contactQuery: '&mdContacts',\n      placeholder: '@?',\n      secondaryPlaceholder: '@?',\n      contactName: '@mdContactName',\n      contactImage: '@mdContactImage',\n      contactEmail: '@mdContactEmail',\n      contacts: '=ngModel',\n      ngChange: '&?',\n      requireMatch: '=?mdRequireMatch',\n      minLength: '=?mdMinLength',\n      maxChips: '=?mdMaxChips',\n      highlightFlags: '@?mdHighlightFlags',\n      chipAppendDelay: '@?mdChipAppendDelay',\n      separatorKeys: '=?mdSeparatorKeys',\n      removedMessage: '@?mdRemovedMessage',\n      inputClass: '@?mdInputClass',\n      inputAriaDescribedBy: '@?inputAriaDescribedby',\n      inputAriaLabelledBy: '@?inputAriaLabelledby',\n      inputAriaLabel: '@?',\n      containerHint: '@?',\n      containerEmptyHint: '@?',\n      deleteHint: '@?'\n    }\n  };\n\n  function compile(element, attr) {\n    return function postLink(scope, element, attrs, controllers) {\n      var contactChipsController = controllers;\n\n      $mdUtil.initOptionalProperties(scope, attr);\n      $mdTheming(element);\n\n      element.attr('tabindex', '-1');\n\n      attrs.$observe('mdChipAppendDelay', function(newValue) {\n        contactChipsController.chipAppendDelay = newValue;\n      });\n    };\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n(function () {\n  \"use strict\";\n\n  /**\n   *  Use a RegExp to check if the `md-colors=\"<expression>\"` is static string\n   *  or one that should be observed and dynamically interpolated.\n   */\n  MdColorsDirective.$inject = [\"$mdColors\", \"$mdUtil\", \"$log\", \"$parse\"];\n  MdColorsService.$inject = [\"$mdTheming\", \"$mdUtil\", \"$log\"];\n  var STATIC_COLOR_EXPRESSION = /^{((\\s|,)*?[\"'a-zA-Z-]+?\\s*?:\\s*?(['\"])[a-zA-Z0-9-.]*(['\"]))+\\s*}$/;\n  var colorPalettes = null;\n\n  /**\n   * @ngdoc module\n   * @name material.components.colors\n   *\n   * @description\n   * Define $mdColors service and a `md-colors=\"\"` attribute directive\n   */\n  angular\n    .module('material.components.colors', ['material.core'])\n    .directive('mdColors', MdColorsDirective)\n    .service('$mdColors', MdColorsService);\n\n  /**\n   * @ngdoc service\n   * @name $mdColors\n   * @module material.components.colors\n   *\n   * @description\n   * By default, defining a theme does not make its colors available for applying to non AngularJS\n   * Material elements. The `$mdColors` service is used by the `md-color` directive to convert a\n   * set of color expressions to RGBA values and then apply those values to the element as CSS\n   * property values.\n   *\n   * @usage\n   * Getting a color based on a theme\n   *\n   *  <hljs lang=\"js\">\n   *    angular.controller('myCtrl', function ($mdColors) {\n   *      var color = $mdColors.getThemeColor('myTheme-primary-900-0.5');\n   *      ...\n   *    });\n   *  </hljs>\n   *\n   * Applying a color from a palette to an element\n   * <hljs lang=\"js\">\n   *   app.directive('myDirective', function($mdColors) {\n   *     return {\n   *       ...\n   *       link: function (scope, elem) {\n   *         $mdColors.applyThemeColors(elem, {color: 'red-A200-0.2'});\n   *       }\n   *    }\n   *   });\n   * </hljs>\n   */\n  function MdColorsService($mdTheming, $mdUtil, $log) {\n    colorPalettes = colorPalettes || Object.keys($mdTheming.PALETTES);\n\n    // Publish service instance\n    return {\n      applyThemeColors: applyThemeColors,\n      getThemeColor: getThemeColor,\n      hasTheme: hasTheme\n    };\n\n    // ********************************************\n    // Internal Methods\n    // ********************************************\n\n    /**\n     * @ngdoc method\n     * @name $mdColors#applyThemeColors\n     *\n     * @description\n     * Lookup a set of colors by hue, theme, and palette, then apply those colors\n     * with the provided opacity (via `rgba()`) to the specified CSS property.\n     *\n     * @param {angular.element} element the element to apply the styles to\n     * @param {Object} colorExpression Keys are CSS properties and values are strings representing\n     * the `theme-palette-hue-opacity` of the desired color. For example:\n     * `{'color': 'red-A200-0.3', 'background-color': 'myTheme-primary-700-0.8'}`. Theme, hue, and\n     * opacity are optional.\n     */\n    function applyThemeColors(element, colorExpression) {\n      try {\n        if (colorExpression) {\n          // Assign the calculate RGBA color values directly as inline CSS\n          element.css(interpolateColors(colorExpression));\n        }\n      } catch (e) {\n        $log.error(e.message);\n      }\n    }\n\n    /**\n     * @ngdoc method\n     * @name $mdColors#getThemeColor\n     *\n     * @description\n     * Get a parsed RGBA color using a string representing the `theme-palette-hue-opacity` of the\n     * desired color.\n     *\n     * @param {string} expression color expression like `'red-A200-0.3'` or\n     *  `'myTheme-primary-700-0.8'`. Theme, hue, and opacity are optional.\n     * @returns {string} a CSS color value like `rgba(211, 47, 47, 0.8)`\n     */\n    function getThemeColor(expression) {\n      var color = extractColorOptions(expression);\n\n      return parseColor(color);\n    }\n\n    /**\n     * Return the parsed color\n     * @param {{hue: *, theme: any, palette: *, opacity: (*|string|number)}} color hash map of color\n     *  definitions\n     * @param {boolean=} contrast whether use contrast color for foreground. Defaults to false.\n     * @returns {string} rgba color string\n     */\n    function parseColor(color, contrast) {\n      contrast = contrast || false;\n      var rgbValues = $mdTheming.PALETTES[color.palette][color.hue];\n\n      rgbValues = contrast ? rgbValues.contrast : rgbValues.value;\n\n      return $mdUtil.supplant('rgba({0}, {1}, {2}, {3})',\n        [rgbValues[0], rgbValues[1], rgbValues[2], rgbValues[3] || color.opacity]\n      );\n    }\n\n    /**\n     * Convert the color expression into an object with scope-interpolated values\n     * Then calculate the rgba() values based on the theme color parts\n     * @param {Object} themeColors json object, keys are css properties and values are string of\n     * the wanted color, for example: `{color: 'red-A200-0.3'}`.\n     * @return {Object} Hashmap of CSS properties with associated `rgba()` string values\n     */\n    function interpolateColors(themeColors) {\n      var rgbColors = {};\n\n      var hasColorProperty = themeColors.hasOwnProperty('color');\n\n      angular.forEach(themeColors, function (value, key) {\n        var color = extractColorOptions(value);\n        var hasBackground = key.indexOf('background') > -1;\n\n        rgbColors[key] = parseColor(color);\n        if (hasBackground && !hasColorProperty) {\n          rgbColors.color = parseColor(color, true);\n        }\n      });\n\n      return rgbColors;\n    }\n\n    /**\n     * Check if expression has defined theme\n     * For instance:\n     *   'myTheme-primary' => true\n     *   'red-800' => false\n     * @param {string} expression color expression like 'red-800', 'red-A200-0.3',\n     *   'myTheme-primary', or 'myTheme-primary-400'\n     * @return {boolean} true if the expression has a theme part, false otherwise.\n     */\n    function hasTheme(expression) {\n      return angular.isDefined($mdTheming.THEMES[expression.split('-')[0]]);\n    }\n\n    /**\n     * For the evaluated expression, extract the color parts into a hash map\n     * @param {string} expression color expression like 'red-800', 'red-A200-0.3',\n     *   'myTheme-primary', or 'myTheme-primary-400'\n     * @returns {{hue: *, theme: any, palette: *, opacity: (*|string|number)}}\n     */\n    function extractColorOptions(expression) {\n      var parts = expression.split('-');\n      var hasTheme = angular.isDefined($mdTheming.THEMES[parts[0]]);\n      var theme = hasTheme ? parts.splice(0, 1)[0] : $mdTheming.defaultTheme();\n\n      return {\n        theme: theme,\n        palette: extractPalette(parts, theme),\n        hue: extractHue(parts, theme),\n        opacity: parts[2] || 1\n      };\n    }\n\n    /**\n     * Calculate the theme palette name\n     * @param {Array} parts\n     * @param {string} theme name\n     * @return {string}\n     */\n    function extractPalette(parts, theme) {\n      // If the next section is one of the palettes we assume it's a two word palette\n      // Two word palette can be also written in camelCase, forming camelCase to dash-case\n\n      var isTwoWord = parts.length > 1 && colorPalettes.indexOf(parts[1]) !== -1;\n      var palette = parts[0].replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();\n\n      if (isTwoWord)  palette = parts[0] + '-' + parts.splice(1, 1);\n\n      if (colorPalettes.indexOf(palette) === -1) {\n        // If the palette is not in the palette list it's one of primary/accent/warn/background\n        var scheme = $mdTheming.THEMES[theme].colors[palette];\n        if (!scheme) {\n          throw new Error($mdUtil.supplant(\n            'mdColors: couldn\\'t find \\'{palette}\\' in the palettes.',\n            {palette: palette}));\n        }\n        palette = scheme.name;\n      }\n\n      return palette;\n    }\n\n    /**\n     * @param {Array} parts\n     * @param {string} theme name\n     * @return {*}\n     */\n    function extractHue(parts, theme) {\n      var themeColors = $mdTheming.THEMES[theme].colors;\n\n      if (parts[1] === 'hue') {\n        var hueNumber = parseInt(parts.splice(2, 1)[0], 10);\n\n        if (hueNumber < 1 || hueNumber > 3) {\n          throw new Error($mdUtil.supplant(\n            'mdColors: \\'hue-{hueNumber}\\' is not a valid hue, can be only \\'hue-1\\', \\'hue-2\\' and \\'hue-3\\'',\n            {hueNumber: hueNumber}));\n        }\n        parts[1] = 'hue-' + hueNumber;\n\n        if (!(parts[0] in themeColors)) {\n          throw new Error($mdUtil.supplant(\n            'mdColors: \\'hue-x\\' can only be used with [{availableThemes}], but was used with \\'{usedTheme}\\'',\n            {\n            availableThemes: Object.keys(themeColors).join(', '),\n            usedTheme: parts[0]\n          }));\n        }\n\n        return themeColors[parts[0]].hues[parts[1]];\n      }\n\n      return parts[1] || themeColors[parts[0] in themeColors ? parts[0] : 'primary'].hues['default'];\n    }\n  }\n\n  /**\n   * @ngdoc directive\n   * @name mdColors\n   * @module material.components.colors\n   *\n   * @restrict A\n   *\n   * @description\n   * `mdColors` directive will apply the theme-based color expression as RGBA CSS style values.\n   *\n   *   The format will be similar to the colors defined in the Sass files:\n   *\n   *   ## `[?theme]-[palette]-[?hue]-[?opacity]`\n   *   - [theme]    - default value is the default theme\n   *   - [palette]  - can be either palette name or primary/accent/warn/background\n   *   - [hue]      - default is 500 (hue-x can be used with primary/accent/warn/background)\n   *   - [opacity]  - default is 1\n   *\n   *\n   *   > `?` indicates optional parameter\n   *\n   * @usage\n   * <hljs lang=\"html\">\n   *   <div md-colors=\"{background: 'myTheme-accent-900-0.43'}\">\n   *     <div md-colors=\"{color: 'red-A100', 'border-color': 'primary-600'}\">\n   *       <span>Color demo</span>\n   *     </div>\n   *   </div>\n   * </hljs>\n   *\n   * The `mdColors` directive will automatically watch for changes in the expression if it recognizes\n   * an interpolation expression or a function. For performance options, you can use `::` prefix to\n   * the `md-colors` expression to indicate a one-time data binding.\n   *\n   * <hljs lang=\"html\">\n   *   <md-card md-colors=\"::{background: '{{theme}}-primary-700'}\">\n   *   </md-card>\n   * </hljs>\n   */\n  function MdColorsDirective($mdColors, $mdUtil, $log, $parse) {\n    return {\n      restrict: 'A',\n      require: ['^?mdTheme'],\n      compile: function (tElem, tAttrs) {\n        var shouldWatch = shouldColorsWatch();\n\n        return function (scope, element, attrs, ctrl) {\n          var mdThemeController = ctrl[0];\n\n          var lastColors = {};\n\n          /**\n           * @param {string=} theme\n           * @return {Object} colors found in the specified theme\n           */\n          var parseColors = function (theme) {\n            if (typeof theme !== 'string') {\n              theme = '';\n            }\n\n            if (!attrs.mdColors) {\n              attrs.mdColors = '{}';\n            }\n\n            /**\n             * Json.parse() does not work because the keys are not quoted;\n             * use $parse to convert to a hash map\n             */\n            var colors = $parse(attrs.mdColors)(scope);\n\n            /**\n             * If mdTheme is defined higher up the DOM tree,\n             * we add mdTheme's theme to the colors which don't specify a theme.\n             *\n             * @example\n             * <hljs lang=\"html\">\n             *   <div md-theme=\"myTheme\">\n             *     <div md-colors=\"{background: 'primary-600'}\">\n             *       <span md-colors=\"{background: 'mySecondTheme-accent-200'}\">Color demo</span>\n             *     </div>\n             *   </div>\n             * </hljs>\n             *\n             * 'primary-600' will be changed to 'myTheme-primary-600',\n             * but 'mySecondTheme-accent-200' will not be changed since it has a theme defined.\n             */\n            if (mdThemeController) {\n              Object.keys(colors).forEach(function (prop) {\n                var color = colors[prop];\n                if (!$mdColors.hasTheme(color)) {\n                  colors[prop] = (theme || mdThemeController.$mdTheme) + '-' + color;\n                }\n              });\n            }\n\n            cleanElement(colors);\n\n            return colors;\n          };\n\n          /**\n           * @param {Object} colors\n           */\n          var cleanElement = function (colors) {\n            if (!angular.equals(colors, lastColors)) {\n              var keys = Object.keys(lastColors);\n\n              if (lastColors.background && !keys.color) {\n                keys.push('color');\n              }\n\n              keys.forEach(function (key) {\n                element.css(key, '');\n              });\n            }\n\n            lastColors = colors;\n          };\n\n          /**\n           * Registering for mgTheme changes and asking mdTheme controller run our callback whenever\n           * a theme changes.\n           */\n          var unregisterChanges = angular.noop;\n\n          if (mdThemeController) {\n            unregisterChanges = mdThemeController.registerChanges(function (theme) {\n              $mdColors.applyThemeColors(element, parseColors(theme));\n            });\n          }\n\n          scope.$on('$destroy', function () {\n            unregisterChanges();\n          });\n\n          try {\n            if (shouldWatch) {\n              scope.$watch(parseColors, angular.bind(this,\n                $mdColors.applyThemeColors, element\n              ), true);\n            }\n            else {\n              $mdColors.applyThemeColors(element, parseColors());\n            }\n\n          }\n          catch (e) {\n            $log.error(e.message);\n          }\n\n        };\n\n        /**\n         * @return {boolean}\n         */\n        function shouldColorsWatch() {\n          // Simulate 1x binding and mark mdColorsWatch == false\n          var rawColorExpression = tAttrs.mdColors;\n          var bindOnce = rawColorExpression.indexOf('::') > -1;\n          var isStatic = bindOnce ? true : STATIC_COLOR_EXPRESSION.test(tAttrs.mdColors);\n\n          // Remove it for the postLink...\n          tAttrs.mdColors = rawColorExpression.replace('::', '');\n\n          var hasWatchAttr = angular.isDefined(tAttrs.mdColorsWatch);\n\n          return (bindOnce || isStatic) ? false :\n            hasWatchAttr ? $mdUtil.parseAttributeBoolean(tAttrs.mdColorsWatch) : true;\n        }\n      }\n    };\n  }\n})();\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.content\n *\n * @description\n * Scrollable content\n */\nmdContentDirective.$inject = [\"$mdTheming\"];\nangular.module('material.components.content', [\n  'material.core'\n])\n  .directive('mdContent', mdContentDirective);\n\n/**\n * @ngdoc directive\n * @name mdContent\n * @module material.components.content\n *\n * @restrict E\n *\n * @description\n *\n * The `<md-content>` directive is a container element useful for scrollable content. It achieves\n * this by setting the CSS `overflow` property to `auto` so that content can properly scroll.\n *\n * In general, `<md-content>` components are not designed to be nested inside one another. If\n * possible, it is better to make them siblings. This often results in a better user experience as\n * having nested scrollbars may confuse the user.\n *\n * ## Troubleshooting\n *\n * In some cases, you may wish to apply the `md-no-momentum` class to ensure that Safari's\n * momentum scrolling is disabled. Momentum scrolling can cause flickering issues while scrolling\n * SVG icons and some other components.\n *\n * Additionally, we now also offer the `md-no-flicker` class which can be applied to any element\n * and uses a Webkit-specific filter of `blur(0px)` that forces GPU rendering of all elements\n * inside (which eliminates the flicker on iOS devices).\n *\n * _<b>Note:</b> Forcing an element to render on the GPU can have unintended side-effects, especially\n * related to the z-index of elements. Please use with caution and only on the elements needed._\n *\n * @usage\n *\n * Add the `[layout-padding]` attribute to make the content padded.\n *\n * <hljs lang=\"html\">\n *  <md-content layout-padding>\n *      Lorem ipsum dolor sit amet, ne quod novum mei.\n *  </md-content>\n * </hljs>\n */\n\nfunction mdContentDirective($mdTheming) {\n  return {\n    restrict: 'E',\n    controller: ['$scope', '$element', ContentController],\n    link: function(scope, element) {\n      element.addClass('_md');     // private md component indicator for styling\n\n      $mdTheming(element);\n      scope.$broadcast('$mdContentLoaded', element);\n\n      iosScrollFix(element[0]);\n    }\n  };\n\n  function ContentController($scope, $element) {\n    this.$scope = $scope;\n    this.$element = $element;\n  }\n}\n\nfunction iosScrollFix(node) {\n  // IOS FIX:\n  // If we scroll where there is no more room for the webview to scroll,\n  // by default the webview itself will scroll up and down, this looks really\n  // bad.  So if we are scrolling to the very top or bottom, add/subtract one\n  angular.element(node).on('$md.pressdown', function(ev) {\n    // Only touch events\n    if (ev.pointer.type !== 't') return;\n    // Don't let a child content's touchstart ruin it for us.\n    if (ev.$materialScrollFixed) return;\n    ev.$materialScrollFixed = true;\n\n    if (node.scrollTop === 0) {\n      node.scrollTop = 1;\n    } else if (node.scrollHeight === node.scrollTop + node.offsetHeight) {\n      node.scrollTop -= 1;\n    }\n  });\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.datepicker\n * @description Module for the datepicker component.\n */\n\nangular.module('material.components.datepicker', [\n  'material.core',\n  'material.components.icon',\n  'material.components.virtualRepeat'\n]);\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  /**\n   * @ngdoc directive\n   * @name mdCalendar\n   * @module material.components.datepicker\n   *\n   * @param {Date} ng-model The component's model. Should be a Date object.\n   * @param {Object=} ng-model-options Allows tuning of the way in which `ng-model` is being\n   *  updated. Also allows for a timezone to be specified.\n   *  <a href=\"https://docs.angularjs.org/api/ng/directive/ngModelOptions#usage\">Read more at the\n   *  ngModelOptions docs.</a>\n   * @param {Date=} md-min-date Expression representing the minimum date.\n   * @param {Date=} md-max-date Expression representing the maximum date.\n   * @param {(function(Date): boolean)=} md-date-filter Function expecting a date and returning a\n   *  boolean whether it can be selected in \"day\" mode or not.\n   * @param {(function(Date): boolean)=} md-month-filter Function expecting a date and returning a\n   *  boolean whether it can be selected in \"month\" mode or not.\n   * @param {String=} md-current-view Current view of the calendar. Can be either \"month\" or \"year\".\n   * @param {String=} md-mode Restricts the user to only selecting a value from a particular view.\n   *  This option can be used if the user is only supposed to choose from a certain date type\n   *  (e.g. only selecting the month). Can be either \"month\" or \"day\". **Note** that this will\n   *  overwrite the `md-current-view` value.\n   *\n   * @description\n   * `<md-calendar>` is a component that renders a calendar that can be used to select a date.\n   * It is a part of the `<md-datepicker>` pane, however it can also be used on it's own.\n   *\n   * @usage\n   *\n   * <hljs lang=\"html\">\n   *   <md-calendar ng-model=\"birthday\"></md-calendar>\n   * </hljs>\n   */\n  CalendarCtrl.$inject = [\"$element\", \"$scope\", \"$$mdDateUtil\", \"$mdUtil\", \"$mdConstant\", \"$mdTheming\", \"$$rAF\", \"$attrs\", \"$mdDateLocale\", \"$filter\", \"$document\"];\n  calendarDirective.$inject = [\"inputDirective\"];\n  angular.module('material.components.datepicker')\n    .directive('mdCalendar', calendarDirective);\n\n  // TODO(jelbourn): Mac Cmd + left / right == Home / End\n  // TODO(jelbourn): Refactor month element creation to use cloneNode (performance).\n  // TODO(jelbourn): Define virtual scrolling constants (compactness) users can override.\n  // TODO(jelbourn): Animated month transition on ng-model change (virtual-repeat)\n  // TODO(jelbourn): Scroll snapping (virtual repeat)\n  // TODO(jelbourn): Remove superfluous row from short months (virtual-repeat)\n  // TODO(jelbourn): Month headers stick to top when scrolling.\n  // TODO(jelbourn): Previous month opacity is lowered when partially scrolled out of view.\n  // TODO(jelbourn): Support md-calendar standalone on a page (as a tabstop w/ aria-live\n  //     announcement and key handling).\n  // TODO Read-only calendar (not just date-picker).\n\n  function calendarDirective(inputDirective) {\n    return {\n      template: function(tElement, tAttr) {\n        // This allows the calendar to work, without a datepicker. This ensures that the virtual\n        // repeater scrolls to the proper place on load by deferring the execution until the next\n        // digest. It's necessary only if the calendar is used without a datepicker, otherwise it's\n        // already wrapped in an ngIf.\n        var extraAttrs = tAttr.hasOwnProperty('ngIf') ? '' : 'ng-if=\"calendarCtrl.isInitialized\"';\n        return '' +\n          '<div ng-switch=\"calendarCtrl.currentView\" ' + extraAttrs + '>' +\n            '<md-calendar-year ng-switch-when=\"year\"></md-calendar-year>' +\n            '<md-calendar-month ng-switch-default></md-calendar-month>' +\n          '</div>';\n      },\n      scope: {\n        minDate: '=mdMinDate',\n        maxDate: '=mdMaxDate',\n        dateFilter: '=mdDateFilter',\n        monthFilter: '=mdMonthFilter',\n\n        // These need to be prefixed, because Angular resets\n        // any changes to the value due to bindToController.\n        _mode: '@mdMode',\n        _currentView: '@mdCurrentView'\n      },\n      require: ['ngModel', 'mdCalendar'],\n      controller: CalendarCtrl,\n      controllerAs: 'calendarCtrl',\n      bindToController: true,\n      link: function(scope, element, attrs, controllers) {\n        var ngModelCtrl = controllers[0];\n        var mdCalendarCtrl = controllers[1];\n        mdCalendarCtrl.configureNgModel(ngModelCtrl, inputDirective);\n      }\n    };\n  }\n\n  /**\n   * Occasionally the hideVerticalScrollbar method might read an element's\n   * width as 0, because it hasn't been laid out yet. This value will be used\n   * as a fallback, in order to prevent scenarios where the element's width\n   * would otherwise have been set to 0. This value is the \"usual\" width of a\n   * calendar within a floating calendar pane.\n   */\n  var FALLBACK_WIDTH = 340;\n\n  /** Next identifier for calendar instance. */\n  var nextUniqueId = 0;\n\n  /** Maps the `md-mode` values to their corresponding calendar views. */\n  var MODE_MAP = {\n    day: 'month',\n    month: 'year'\n  };\n\n  /**\n   * Controller for the mdCalendar component.\n   * @ngInject @constructor\n   */\n  function CalendarCtrl($element, $scope, $$mdDateUtil, $mdUtil, $mdConstant, $mdTheming, $$rAF,\n                        $attrs, $mdDateLocale, $filter, $document) {\n    $mdTheming($element);\n\n    /**\n     * @final\n     * @type {!JQLite}\n     */\n    this.$element = $element;\n\n    /**\n     * @final\n     * @type {!angular.Scope}\n     */\n    this.$scope = $scope;\n\n    /**\n     * @final\n     * @type {!angular.$attrs} Current attributes object for the element\n     */\n    this.$attrs = $attrs;\n\n    /** @final */\n    this.dateUtil = $$mdDateUtil;\n\n    /** @final */\n    this.$mdUtil = $mdUtil;\n\n    /** @final */\n    this.keyCode = $mdConstant.KEY_CODE;\n\n    /** @final */\n    this.$$rAF = $$rAF;\n\n    /** @final */\n    this.$mdDateLocale = $mdDateLocale;\n\n    /** @final The built-in Angular date filter. */\n    this.ngDateFilter = $filter('date');\n\n    /**\n     * @final\n     * @type {Date}\n     */\n    this.today = this.dateUtil.createDateAtMidnight();\n\n    /** @type {!ngModel.NgModelController} */\n    this.ngModelCtrl = undefined;\n\n    /** @type {string} Class applied to the selected date cell. */\n    this.SELECTED_DATE_CLASS = 'md-calendar-selected-date';\n\n    /** @type {string} Class applied to the cell for today. */\n    this.TODAY_CLASS = 'md-calendar-date-today';\n\n    /** @type {string} Class applied to the focused cell. */\n    this.FOCUSED_DATE_CLASS = 'md-focus';\n\n    /**\n     * @final\n     * @type {number} Unique ID for this calendar instance.\n     */\n    this.id = nextUniqueId++;\n\n    /**\n     * The date that is currently focused or showing in the calendar. This will initially be set\n     * to the ng-model value if set, otherwise to today. It will be updated as the user navigates\n     * to other months. The cell corresponding to the displayDate does not necessarily always have\n     * focus in the document (such as for cases when the user is scrolling the calendar).\n     * @type {Date}\n     */\n    this.displayDate = null;\n\n    /**\n     * Allows restricting the calendar to only allow selecting a month or a day.\n     * @type {'month'|'day'|null}\n     */\n    this.mode = null;\n\n    /**\n     * The selected date. Keep track of this separately from the ng-model value so that we\n     * can know, when the ng-model value changes, what the previous value was before it's updated\n     * in the component's UI.\n     *\n     * @type {Date}\n     */\n    this.selectedDate = null;\n\n    /**\n     * The first date that can be rendered by the calendar. The default is taken\n     * from the mdDateLocale provider and is limited by the mdMinDate.\n     * @type {Date}\n     */\n    this.firstRenderableDate = null;\n\n    /**\n     * The last date that can be rendered by the calendar. The default comes\n     * from the mdDateLocale provider and is limited by the maxDate.\n     * @type {Date}\n     */\n    this.lastRenderableDate = null;\n\n    /**\n     * Used to toggle initialize the root element in the next digest.\n     * @type {boolean}\n     */\n    this.isInitialized = false;\n\n    /**\n     * Cache for the  width of the element without a scrollbar. Used to hide the scrollbar later on\n     * and to avoid extra reflows when switching between views.\n     * @type {number}\n     */\n    this.width = 0;\n\n    /**\n     * Caches the width of the scrollbar in order to be used when hiding it and to avoid extra reflows.\n     * @type {number}\n     */\n    this.scrollbarWidth = 0;\n\n    /**\n     * @type {boolean} set to true if the calendar is being used \"standalone\" (outside of a\n     *  md-datepicker).\n     */\n    this.standaloneMode = false;\n\n    // Unless the user specifies so, the calendar should not be a tab stop.\n    // This is necessary because ngAria might add a tabindex to anything with an ng-model\n    // (based on whether or not the user has turned that particular feature on/off).\n    if (!$attrs.tabindex) {\n      $element.attr('tabindex', '-1');\n    }\n\n    var boundKeyHandler = angular.bind(this, this.handleKeyEvent);\n\n    // If use the md-calendar directly in the body without datepicker,\n    // handleKeyEvent will disable other inputs on the page.\n    // So only apply the handleKeyEvent on the body when the md-calendar inside datepicker,\n    // otherwise apply on the calendar element only.\n\n    var handleKeyElement;\n    if ($element.parent().hasClass('md-datepicker-calendar')) {\n      handleKeyElement = angular.element($document[0].body);\n    } else {\n      this.standaloneMode = true;\n      handleKeyElement = $element;\n    }\n\n    // Bind the keydown handler to the body, in order to handle cases where the focused\n    // element gets removed from the DOM and stops propagating click events.\n    handleKeyElement.on('keydown', boundKeyHandler);\n\n    $scope.$on('$destroy', function() {\n      handleKeyElement.off('keydown', boundKeyHandler);\n    });\n\n    // For AngularJS 1.4 and older, where there are no lifecycle hooks but bindings are pre-assigned,\n    // manually call the $onInit hook.\n    if (angular.version.major === 1 && angular.version.minor <= 4) {\n      this.$onInit();\n    }\n  }\n\n  /**\n   * AngularJS Lifecycle hook for newer AngularJS versions.\n   * Bindings are not guaranteed to have been assigned in the controller, but they are in the\n   * $onInit hook.\n   */\n  CalendarCtrl.prototype.$onInit = function() {\n    /**\n     * The currently visible calendar view. Note the prefix on the scope value,\n     * which is necessary, because the datepicker seems to reset the real one value if the\n     * calendar is open, but the `currentView` on the datepicker's scope is empty.\n     * @type {String}\n     */\n    if (this._mode && MODE_MAP.hasOwnProperty(this._mode)) {\n      this.currentView = MODE_MAP[this._mode];\n      this.mode = this._mode;\n    } else {\n      this.currentView = this._currentView || 'month';\n      this.mode = null;\n    }\n\n    if (this.minDate && this.minDate > this.$mdDateLocale.firstRenderableDate) {\n      this.firstRenderableDate = this.minDate;\n    } else {\n      this.firstRenderableDate = this.$mdDateLocale.firstRenderableDate;\n    }\n\n    if (this.maxDate && this.maxDate < this.$mdDateLocale.lastRenderableDate) {\n      this.lastRenderableDate = this.maxDate;\n    } else {\n      this.lastRenderableDate = this.$mdDateLocale.lastRenderableDate;\n    }\n  };\n\n  /**\n   * Sets up the controller's reference to ngModelController.\n   * @param {!ngModel.NgModelController} ngModelCtrl Instance of the ngModel controller.\n   * @param {Object} inputDirective Config for AngularJS's `input` directive.\n   */\n  CalendarCtrl.prototype.configureNgModel = function(ngModelCtrl, inputDirective) {\n    var self = this;\n    self.ngModelCtrl = ngModelCtrl;\n\n    // The component needs to be [type=\"date\"] in order to be picked up by AngularJS.\n    this.$attrs.$set('type', 'date');\n\n    // Invoke the `input` directive link function, adding a stub for the element.\n    // This allows us to re-use AngularJS' logic for setting the timezone via ng-model-options.\n    // It works by calling the link function directly which then adds the proper `$parsers` and\n    // `$formatters` to the NgModelController.\n    inputDirective[0].link.pre(this.$scope, {\n      on: angular.noop,\n      val: angular.noop,\n      0: {}\n    }, this.$attrs, [ngModelCtrl]);\n\n    ngModelCtrl.$render = function() {\n      var value = this.$viewValue, convertedDate;\n\n      // In the case where a conversion is needed, the $viewValue here will be a string like\n      // \"2020-05-10\" instead of a Date object.\n      if (!self.dateUtil.isValidDate(value)) {\n        convertedDate = self.dateUtil.removeLocalTzAndReparseDate(new Date(value));\n        if (self.dateUtil.isValidDate(convertedDate)) {\n          value = convertedDate;\n        }\n      }\n\n      // Notify the child scopes of any changes.\n      self.$scope.$broadcast('md-calendar-parent-changed', value);\n\n      // Set up the selectedDate if it hasn't been already.\n      if (!self.selectedDate) {\n        self.selectedDate = value;\n      }\n\n      // Also set up the displayDate.\n      if (!self.displayDate) {\n        self.displayDate = self.selectedDate || self.today;\n      }\n    };\n\n    self.$mdUtil.nextTick(function() {\n      self.isInitialized = true;\n    });\n  };\n\n  /**\n   * Sets the ng-model value for the calendar and emits a change event.\n   * @param {Date} date new value for the calendar\n   */\n  CalendarCtrl.prototype.setNgModelValue = function(date) {\n    var timezone = this.$mdUtil.getModelOption(this.ngModelCtrl, 'timezone');\n    var value = this.dateUtil.createDateAtMidnight(date);\n    this.focusDate(value);\n    this.$scope.$emit('md-calendar-change', value);\n    // Using the timezone when the offset is negative (GMT+X) causes the previous day to be\n    // selected here. This check avoids that.\n    if (timezone == null || value.getTimezoneOffset() < 0) {\n      this.ngModelCtrl.$setViewValue(this.ngDateFilter(value, 'yyyy-MM-dd'), 'default');\n    } else {\n      this.ngModelCtrl.$setViewValue(this.ngDateFilter(value, 'yyyy-MM-dd', timezone), 'default');\n    }\n    this.ngModelCtrl.$render();\n    return value;\n  };\n\n  /**\n   * Sets the current view that should be visible in the calendar\n   * @param {string} newView View name to be set.\n   * @param {number|Date} time Date object or a timestamp for the new display date.\n   */\n  CalendarCtrl.prototype.setCurrentView = function(newView, time) {\n    var self = this;\n\n    self.$mdUtil.nextTick(function() {\n      self.currentView = newView;\n\n      if (time) {\n        self.displayDate = angular.isDate(time) ? time : new Date(time);\n      }\n    });\n  };\n\n  /**\n   * Focus the cell corresponding to the given date.\n   * @param {Date=} date The date to be focused.\n   */\n  CalendarCtrl.prototype.focusDate = function(date) {\n    if (this.dateUtil.isValidDate(date)) {\n      var previousFocus = this.$element[0].querySelector('.' + this.FOCUSED_DATE_CLASS);\n      if (previousFocus) {\n        previousFocus.classList.remove(this.FOCUSED_DATE_CLASS);\n      }\n\n      var cellId = this.getDateId(date, this.currentView);\n      var cell = document.getElementById(cellId);\n      if (cell) {\n        cell.classList.add(this.FOCUSED_DATE_CLASS);\n        cell.focus();\n        this.displayDate = date;\n      }\n    } else {\n      var rootElement = this.$element[0].querySelector('[ng-switch]');\n\n      if (rootElement) {\n        rootElement.focus();\n      }\n    }\n  };\n\n  /**\n   * Highlights a date cell on the calendar and changes the selected date.\n   * @param {Date=} date Date to be marked as selected.\n   */\n  CalendarCtrl.prototype.changeSelectedDate = function(date) {\n    var selectedDateClass = this.SELECTED_DATE_CLASS;\n    var prevDateCell = this.$element[0].querySelector('.' + selectedDateClass);\n\n    // Remove the selected class from the previously selected date, if any.\n    if (prevDateCell) {\n      prevDateCell.classList.remove(selectedDateClass);\n      prevDateCell.setAttribute('aria-selected', 'false');\n    }\n\n    // Apply the select class to the new selected date if it is set.\n    if (date) {\n      var dateCell = document.getElementById(this.getDateId(date, this.currentView));\n      if (dateCell) {\n        dateCell.classList.add(selectedDateClass);\n        dateCell.setAttribute('aria-selected', 'true');\n      }\n    }\n\n    this.selectedDate = date;\n  };\n\n  /**\n   * Normalizes the key event into an action name. The action will be broadcast\n   * to the child controllers.\n   * @param {KeyboardEvent} event\n   * @returns {string} The action that should be taken, or null if the key\n   *  does not match a calendar shortcut.\n   */\n  CalendarCtrl.prototype.getActionFromKeyEvent = function(event) {\n    var keyCode = this.keyCode;\n\n    switch (event.which) {\n      case keyCode.ENTER: return 'select';\n\n      case keyCode.RIGHT_ARROW: return 'move-right';\n      case keyCode.LEFT_ARROW: return 'move-left';\n\n      case keyCode.DOWN_ARROW: return event.metaKey ? 'move-page-down' : 'move-row-down';\n      case keyCode.UP_ARROW: return event.metaKey ? 'move-page-up' : 'move-row-up';\n\n      case keyCode.PAGE_DOWN: return 'move-page-down';\n      case keyCode.PAGE_UP: return 'move-page-up';\n\n      case keyCode.HOME: return 'start';\n      case keyCode.END: return 'end';\n\n      default: return null;\n    }\n  };\n\n  /**\n   * Handles a key event in the calendar with the appropriate action.\n   * The action will either\n   *  - select the focused date\n   *  - navigate to focus a new date\n   *  - emit a md-calendar-close event if in a md-datepicker panel\n   *  - emit a md-calendar-parent-action\n   *  - delegate to normal tab order if the TAB key is pressed in standalone mode\n   * @param {KeyboardEvent} event\n   */\n  CalendarCtrl.prototype.handleKeyEvent = function(event) {\n    var self = this;\n\n    this.$scope.$apply(function() {\n      // Capture escape and emit back up so that a wrapping component\n      // (such as a date-picker) can decide to close.\n      if (event.which === self.keyCode.ESCAPE ||\n          (event.which === self.keyCode.TAB && !self.standaloneMode)) {\n        self.$scope.$emit('md-calendar-close');\n\n        if (event.which === self.keyCode.TAB) {\n          event.preventDefault();\n        }\n\n        return;\n      } else if (event.which === self.keyCode.TAB && self.standaloneMode) {\n        // delegate to the normal tab order if the TAB key is pressed in standalone mode\n        return;\n      }\n\n      // Broadcast the action that any child controllers should take.\n      var action = self.getActionFromKeyEvent(event);\n      if (action) {\n        event.preventDefault();\n        event.stopPropagation();\n        self.$scope.$broadcast('md-calendar-parent-action', action);\n      }\n    });\n  };\n\n  /**\n   * Hides the vertical scrollbar on the calendar scroller of a child controller by\n   * setting the width on the calendar scroller and the `overflow: hidden` wrapper\n   * around the scroller, and then setting a padding-right on the scroller equal\n   * to the width of the browser's scrollbar.\n   *\n   * This will cause a reflow.\n   *\n   * @param {object} childCtrl The child controller whose scrollbar should be hidden.\n   */\n  CalendarCtrl.prototype.hideVerticalScrollbar = function(childCtrl) {\n    var self = this;\n    var element = childCtrl.$element[0];\n    var scrollMask = element.querySelector('.md-calendar-scroll-mask');\n\n    if (self.width > 0) {\n      setWidth();\n    } else {\n      self.$$rAF(function() {\n        var scroller = childCtrl.calendarScroller;\n\n        self.scrollbarWidth = scroller.offsetWidth - scroller.clientWidth;\n        self.width = element.querySelector('table').offsetWidth;\n        setWidth();\n      });\n    }\n\n    function setWidth() {\n      var width = self.width || FALLBACK_WIDTH;\n      var scrollbarWidth = self.scrollbarWidth;\n      var scroller = childCtrl.calendarScroller;\n\n      scrollMask.style.width = width + 'px';\n      scroller.style.width = (width + scrollbarWidth) + 'px';\n      scroller.style.paddingRight = scrollbarWidth + 'px';\n    }\n  };\n\n  /**\n   * Gets an identifier for a date unique to the calendar instance for internal\n   * purposes. Not to be displayed.\n   * @param {Date} date The date for which the id is being generated\n   * @param {string} namespace Namespace for the id. (month, year etc.)\n   * @returns {string}\n   */\n  CalendarCtrl.prototype.getDateId = function(date, namespace) {\n    if (!namespace) {\n      throw new Error('A namespace for the date id has to be specified.');\n    }\n\n    return [\n      'md',\n      this.id,\n      namespace,\n      date.getFullYear(),\n      date.getMonth(),\n      date.getDate()\n    ].join('-');\n  };\n\n  /**\n   * Util to trigger an extra digest on a parent scope, in order to to ensure that\n   * any child virtual repeaters have updated. This is necessary, because the virtual\n   * repeater doesn't update the $index the first time around since the content isn't\n   * in place yet. The case, in which this is an issue, is when the repeater has less\n   * than a page of content (e.g. a month or year view has a min or max date).\n   */\n  CalendarCtrl.prototype.updateVirtualRepeat = function() {\n    var scope = this.$scope;\n    var virtualRepeatResizeListener = scope.$on('$md-resize-enable', function() {\n      if (!scope.$$phase) {\n        scope.$apply();\n      }\n\n      virtualRepeatResizeListener();\n    });\n  };\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  CalendarMonthCtrl.$inject = [\"$element\", \"$scope\", \"$animate\", \"$q\", \"$$mdDateUtil\", \"$mdDateLocale\"];\n  angular.module('material.components.datepicker')\n    .directive('mdCalendarMonth', calendarDirective);\n\n  /**\n   * Height of one calendar month tbody. This must be made known to the virtual-repeat and is\n   * subsequently used for scrolling to specific months.\n   */\n  var TBODY_HEIGHT = 265;\n\n  /**\n   * Height of a calendar month with a single row. This is needed to calculate the offset for\n   * rendering an extra month in virtual-repeat that only contains one row.\n   */\n  var TBODY_SINGLE_ROW_HEIGHT = 45;\n\n  /** Private directive that represents a list of months inside the calendar. */\n  function calendarDirective() {\n    return {\n      template:\n        '<table aria-hidden=\"true\" class=\"md-calendar-day-header\"><thead></thead></table>' +\n        '<div class=\"md-calendar-scroll-mask\">' +\n        '<md-virtual-repeat-container class=\"md-calendar-scroll-container\" ' +\n              'md-offset-size=\"' + (TBODY_SINGLE_ROW_HEIGHT - TBODY_HEIGHT) + '\">' +\n            '<table role=\"grid\" tabindex=\"0\" class=\"md-calendar\" aria-readonly=\"true\">' +\n              '<tbody ' +\n                  'md-calendar-month-body ' +\n                  'role=\"rowgroup\" ' +\n                  'md-virtual-repeat=\"i in monthCtrl.items\" ' +\n                  'md-month-offset=\"$index\" ' +\n                  'class=\"md-calendar-month\" ' +\n                  'md-start-index=\"monthCtrl.getSelectedMonthIndex()\" ' +\n                  'md-item-size=\"' + TBODY_HEIGHT + '\">' +\n\n                // The <tr> ensures that the <tbody> will always have the\n                // proper height, even if it's empty. If it's content is\n                // compiled, the <tr> will be overwritten.\n                '<tr aria-hidden=\"true\" md-force-height=\"\\'' + TBODY_HEIGHT + 'px\\'\"></tr>' +\n              '</tbody>' +\n            '</table>' +\n          '</md-virtual-repeat-container>' +\n        '</div>',\n      require: ['^^mdCalendar', 'mdCalendarMonth'],\n      controller: CalendarMonthCtrl,\n      controllerAs: 'monthCtrl',\n      bindToController: true,\n      link: function(scope, element, attrs, controllers) {\n        var calendarCtrl = controllers[0];\n        var monthCtrl = controllers[1];\n        monthCtrl.initialize(calendarCtrl);\n      }\n    };\n  }\n\n  /**\n   * Controller for the calendar month component.\n   * @ngInject @constructor\n   */\n  function CalendarMonthCtrl($element, $scope, $animate, $q,\n    $$mdDateUtil, $mdDateLocale) {\n\n    /** @final {!angular.JQLite} */\n    this.$element = $element;\n\n    /** @final {!angular.Scope} */\n    this.$scope = $scope;\n\n    /** @final {!angular.$animate} */\n    this.$animate = $animate;\n\n    /** @final {!angular.$q} */\n    this.$q = $q;\n\n    /** @final */\n    this.dateUtil = $$mdDateUtil;\n\n    /** @final */\n    this.dateLocale = $mdDateLocale;\n\n    /** @final {HTMLElement} */\n    this.calendarScroller = $element[0].querySelector('.md-virtual-repeat-scroller');\n\n    /** @type {boolean} */\n    this.isInitialized = false;\n\n    /** @type {boolean} */\n    this.isMonthTransitionInProgress = false;\n\n    var self = this;\n\n    /**\n     * Handles a click event on a date cell.\n     * Created here so that every cell can use the same function instance.\n     * @this {HTMLTableCellElement} The cell that was clicked.\n     */\n    this.cellClickHandler = function() {\n      var timestamp = $$mdDateUtil.getTimestampFromNode(this);\n      self.$scope.$apply(function() {\n        // The timestamp has to be converted to a valid date.\n        self.calendarCtrl.setNgModelValue(new Date(timestamp));\n      });\n    };\n\n    /**\n     * Handles click events on the month headers. Switches\n     * the calendar to the year view.\n     * @this {HTMLTableCellElement} The cell that was clicked.\n     */\n    this.headerClickHandler = function() {\n      self.calendarCtrl.setCurrentView('year', $$mdDateUtil.getTimestampFromNode(this));\n    };\n  }\n\n  /** Initialization **/\n\n  /**\n   * Initialize the controller by saving a reference to the calendar and\n   * setting up the object that will be iterated by the virtual repeater.\n   */\n  CalendarMonthCtrl.prototype.initialize = function(calendarCtrl) {\n    /**\n     * Dummy array-like object for virtual-repeat to iterate over. The length is the total\n     * number of months that can be viewed. We add 2 months: one to include the current month\n     * and one for the last dummy month.\n     *\n     * This is shorter than ideal because of a (potential) Firefox bug\n     * https://bugzilla.mozilla.org/show_bug.cgi?id=1181658.\n     */\n\n    this.items = {\n      length: this.dateUtil.getMonthDistance(\n        calendarCtrl.firstRenderableDate,\n        calendarCtrl.lastRenderableDate\n      ) + 2\n    };\n\n    this.calendarCtrl = calendarCtrl;\n    this.attachScopeListeners();\n    calendarCtrl.updateVirtualRepeat();\n\n    // Fire the initial render, since we might have missed it the first time it fired.\n    calendarCtrl.ngModelCtrl && calendarCtrl.ngModelCtrl.$render();\n  };\n\n  /**\n   * Gets the \"index\" of the currently selected date as it would be in the virtual-repeat.\n   * @returns {number} the \"index\" of the currently selected date\n   */\n  CalendarMonthCtrl.prototype.getSelectedMonthIndex = function() {\n    var calendarCtrl = this.calendarCtrl;\n\n    return this.dateUtil.getMonthDistance(\n      calendarCtrl.firstRenderableDate,\n      calendarCtrl.displayDate || calendarCtrl.selectedDate || calendarCtrl.today\n    );\n  };\n\n  /**\n   * Change the date that is being shown in the calendar. If the given date is in a different\n   * month, the displayed month will be transitioned.\n   * @param {Date} date\n   */\n  CalendarMonthCtrl.prototype.changeDisplayDate = function(date) {\n    // Initialization is deferred until this function is called because we want to reflect\n    // the starting value of ngModel.\n    if (!this.isInitialized) {\n      this.buildWeekHeader();\n      this.calendarCtrl.hideVerticalScrollbar(this);\n      this.isInitialized = true;\n      return this.$q.when();\n    }\n\n    // If trying to show an invalid date or a transition is in progress, do nothing.\n    if (!this.dateUtil.isValidDate(date) || this.isMonthTransitionInProgress) {\n      return this.$q.when();\n    }\n\n    this.isMonthTransitionInProgress = true;\n    var animationPromise = this.animateDateChange(date);\n\n    this.calendarCtrl.displayDate = date;\n\n    var self = this;\n    animationPromise.then(function() {\n      self.isMonthTransitionInProgress = false;\n    });\n\n    return animationPromise;\n  };\n\n  /**\n   * Animates the transition from the calendar's current month to the given month.\n   * @param {Date} date\n   * @returns {angular.$q.Promise} The animation promise.\n   */\n  CalendarMonthCtrl.prototype.animateDateChange = function(date) {\n    if (this.dateUtil.isValidDate(date)) {\n      var monthDistance = this.dateUtil.getMonthDistance(this.calendarCtrl.firstRenderableDate, date);\n      this.calendarScroller.scrollTop = monthDistance * TBODY_HEIGHT;\n    }\n\n    return this.$q.when();\n  };\n\n  /**\n   * Builds and appends a day-of-the-week header to the calendar.\n   * This should only need to be called once during initialization.\n   */\n  CalendarMonthCtrl.prototype.buildWeekHeader = function() {\n    var firstDayOfWeek = this.dateLocale.firstDayOfWeek;\n    var shortDays = this.dateLocale.shortDays;\n\n    var row = document.createElement('tr');\n    for (var i = 0; i < 7; i++) {\n      var th = document.createElement('th');\n      th.textContent = shortDays[(i + firstDayOfWeek) % 7];\n      row.appendChild(th);\n    }\n\n    this.$element.find('thead').append(row);\n  };\n\n  /**\n   * Attaches listeners for the scope events that are broadcast by the calendar.\n   */\n  CalendarMonthCtrl.prototype.attachScopeListeners = function() {\n    var self = this;\n\n    self.$scope.$on('md-calendar-parent-changed', function(event, value) {\n      self.calendarCtrl.changeSelectedDate(value);\n      self.changeDisplayDate(value);\n    });\n\n    self.$scope.$on('md-calendar-parent-action', angular.bind(this, this.handleKeyEvent));\n  };\n\n  /**\n   * Handles the month-specific keyboard interactions.\n   * @param {Object} event Scope event object passed by the calendar.\n   * @param {String} action Action, corresponding to the key that was pressed.\n   */\n  CalendarMonthCtrl.prototype.handleKeyEvent = function(event, action) {\n    var calendarCtrl = this.calendarCtrl;\n    var displayDate = calendarCtrl.displayDate;\n\n    if (action === 'select') {\n      calendarCtrl.setNgModelValue(displayDate);\n    } else {\n      var date = null;\n      var dateUtil = this.dateUtil;\n\n      switch (action) {\n        case 'move-right': date = dateUtil.incrementDays(displayDate, 1); break;\n        case 'move-left': date = dateUtil.incrementDays(displayDate, -1); break;\n\n        case 'move-page-down': date = dateUtil.incrementMonths(displayDate, 1); break;\n        case 'move-page-up': date = dateUtil.incrementMonths(displayDate, -1); break;\n\n        case 'move-row-down': date = dateUtil.incrementDays(displayDate, 7); break;\n        case 'move-row-up': date = dateUtil.incrementDays(displayDate, -7); break;\n\n        case 'start': date = dateUtil.getFirstDateOfMonth(displayDate); break;\n        case 'end': date = dateUtil.getLastDateOfMonth(displayDate); break;\n      }\n\n      if (date) {\n        date = this.dateUtil.clampDate(date, calendarCtrl.minDate, calendarCtrl.maxDate);\n\n        this.changeDisplayDate(date).then(function() {\n          calendarCtrl.focusDate(date);\n        });\n      }\n    }\n  };\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  mdCalendarMonthBodyDirective.$inject = [\"$compile\", \"$$mdSvgRegistry\"];\n  CalendarMonthBodyCtrl.$inject = [\"$element\", \"$$mdDateUtil\", \"$mdDateLocale\"];\n  angular.module('material.components.datepicker')\n      .directive('mdCalendarMonthBody', mdCalendarMonthBodyDirective);\n\n  /**\n   * Private directive consumed by md-calendar-month. Having this directive lets the calender use\n   * md-virtual-repeat and also cleanly separates the month DOM construction functions from\n   * the rest of the calendar controller logic.\n   * @ngInject\n   */\n  function mdCalendarMonthBodyDirective($compile, $$mdSvgRegistry) {\n    var ARROW_ICON = $compile('<md-icon md-svg-src=\"' +\n      $$mdSvgRegistry.mdTabsArrow + '\"></md-icon>')({})[0];\n\n    return {\n      require: ['^^mdCalendar', '^^mdCalendarMonth', 'mdCalendarMonthBody'],\n      scope: { offset: '=mdMonthOffset' },\n      controller: CalendarMonthBodyCtrl,\n      controllerAs: 'mdMonthBodyCtrl',\n      bindToController: true,\n      link: function(scope, element, attrs, controllers) {\n        var calendarCtrl = controllers[0];\n        var monthCtrl = controllers[1];\n        var monthBodyCtrl = controllers[2];\n\n        monthBodyCtrl.calendarCtrl = calendarCtrl;\n        monthBodyCtrl.monthCtrl = monthCtrl;\n        monthBodyCtrl.arrowIcon = ARROW_ICON.cloneNode(true);\n\n        // The virtual-repeat re-uses the same DOM elements, so there are only a limited number\n        // of repeated items that are linked, and then those elements have their bindings updated.\n        // Since the months are not generated by bindings, we simply regenerate the entire thing\n        // when the binding (offset) changes.\n        scope.$watch(function() { return monthBodyCtrl.offset; }, function(offset) {\n          if (angular.isNumber(offset)) {\n            monthBodyCtrl.generateContent();\n          }\n        });\n      }\n    };\n  }\n\n  /**\n   * Controller for a single calendar month.\n   * @ngInject @constructor\n   */\n  function CalendarMonthBodyCtrl($element, $$mdDateUtil, $mdDateLocale) {\n    /**\n     * @final\n     * @type {!JQLite}\n     */\n    this.$element = $element;\n\n    /** @final */\n    this.dateUtil = $$mdDateUtil;\n\n    /** @final */\n    this.dateLocale = $mdDateLocale;\n\n    /** @type {Object} Reference to the month view. */\n    this.monthCtrl = null;\n\n    /** @type {Object} Reference to the calendar. */\n    this.calendarCtrl = null;\n\n    /**\n     * Number of months from the start of the month \"items\" that the currently rendered month\n     * occurs. Set via angular data binding.\n     * @type {number|null}\n     */\n    this.offset = null;\n\n    /**\n     * Date cell to focus after appending the month to the document.\n     * @type {HTMLElement}\n     */\n    this.focusAfterAppend = null;\n  }\n\n  /** Generate and append the content for this month to the directive element. */\n  CalendarMonthBodyCtrl.prototype.generateContent = function() {\n    var date = this.dateUtil.incrementMonths(this.calendarCtrl.firstRenderableDate, this.offset);\n\n    this.$element\n      .empty()\n      .append(this.buildCalendarForMonth(date));\n\n    if (this.focusAfterAppend) {\n      this.focusAfterAppend.classList.add(this.calendarCtrl.FOCUSED_DATE_CLASS);\n      this.focusAfterAppend = null;\n    }\n  };\n\n  /**\n   * Creates a single cell to contain a date in the calendar with all appropriate\n   * attributes and classes added. If a date is given, the cell content will be set\n   * based on the date.\n   * @param {Date=} opt_date\n   * @returns {HTMLElement}\n   */\n  CalendarMonthBodyCtrl.prototype.buildDateCell = function(opt_date) {\n    var monthCtrl = this.monthCtrl;\n    var calendarCtrl = this.calendarCtrl;\n\n    // TODO(jelbourn): cloneNode is likely a faster way of doing this.\n    var cell = document.createElement('td');\n    cell.tabIndex = -1;\n    cell.classList.add('md-calendar-date');\n    cell.setAttribute('role', 'gridcell');\n\n    if (opt_date) {\n      cell.setAttribute('tabindex', '-1');\n      cell.setAttribute('aria-label', this.dateLocale.longDateFormatter(opt_date));\n      cell.id = calendarCtrl.getDateId(opt_date, 'month');\n\n      // Use `data-timestamp` attribute because IE10 does not support the `dataset` property.\n      cell.setAttribute('data-timestamp', opt_date.getTime());\n\n      // TODO(jelourn): Doing these comparisons for class addition during generation might be slow.\n      // It may be better to finish the construction and then query the node and add the class.\n      if (this.dateUtil.isSameDay(opt_date, calendarCtrl.today)) {\n        cell.classList.add(calendarCtrl.TODAY_CLASS);\n      }\n\n      if (this.dateUtil.isValidDate(calendarCtrl.selectedDate) &&\n          this.dateUtil.isSameDay(opt_date, calendarCtrl.selectedDate)) {\n        cell.classList.add(calendarCtrl.SELECTED_DATE_CLASS);\n        cell.setAttribute('aria-selected', 'true');\n      }\n\n      var cellText = this.dateLocale.dates[opt_date.getDate()];\n\n      if (this.isDateEnabled(opt_date)) {\n        // Add a indicator for select, hover, and focus states.\n        var selectionIndicator = document.createElement('span');\n        selectionIndicator.classList.add('md-calendar-date-selection-indicator');\n        selectionIndicator.textContent = cellText;\n        cell.appendChild(selectionIndicator);\n        cell.addEventListener('click', monthCtrl.cellClickHandler);\n\n        if (calendarCtrl.displayDate && this.dateUtil.isSameDay(opt_date, calendarCtrl.displayDate)) {\n          this.focusAfterAppend = cell;\n        }\n      } else {\n        cell.classList.add('md-calendar-date-disabled');\n        cell.textContent = cellText;\n      }\n    }\n\n    return cell;\n  };\n\n  /**\n   * Check whether date is in range and enabled\n   * @param {Date=} opt_date\n   * @return {boolean} Whether the date is enabled.\n   */\n  CalendarMonthBodyCtrl.prototype.isDateEnabled = function(opt_date) {\n    return this.dateUtil.isDateWithinRange(opt_date,\n          this.calendarCtrl.minDate, this.calendarCtrl.maxDate) &&\n          (!angular.isFunction(this.calendarCtrl.dateFilter)\n           || this.calendarCtrl.dateFilter(opt_date));\n  };\n\n  /**\n   * Builds a `tr` element for the calendar grid.\n   * @param rowNumber The week number within the month.\n   * @returns {HTMLElement}\n   */\n  CalendarMonthBodyCtrl.prototype.buildDateRow = function(rowNumber) {\n    var row = document.createElement('tr');\n    row.setAttribute('role', 'row');\n\n    // Because of an NVDA bug (with Firefox), the row needs an aria-label in order\n    // to prevent the entire row being read aloud when the user moves between rows.\n    // See http://community.nvda-project.org/ticket/4643.\n    row.setAttribute('aria-label', this.dateLocale.weekNumberFormatter(rowNumber));\n\n    return row;\n  };\n\n  /**\n   * Builds the <tbody> content for the given date's month.\n   * @param {Date=} opt_dateInMonth\n   * @returns {DocumentFragment} A document fragment containing the <tr> elements.\n   */\n  CalendarMonthBodyCtrl.prototype.buildCalendarForMonth = function(opt_dateInMonth) {\n    var date = this.dateUtil.isValidDate(opt_dateInMonth) ? opt_dateInMonth : new Date();\n\n    var firstDayOfMonth = this.dateUtil.getFirstDateOfMonth(date);\n    var firstDayOfTheWeek = this.getLocaleDay_(firstDayOfMonth);\n    var numberOfDaysInMonth = this.dateUtil.getNumberOfDaysInMonth(date);\n\n    // Store rows for the month in a document fragment so that we can append them all at once.\n    var monthBody = document.createDocumentFragment();\n\n    var rowNumber = 1;\n    var row = this.buildDateRow(rowNumber);\n    monthBody.appendChild(row);\n\n    // If this is the final month in the list of items, only the first week should render,\n    // so we should return immediately after the first row is complete and has been\n    // attached to the body.\n    var isFinalMonth = this.offset === this.monthCtrl.items.length - 1;\n\n    // Add a label for the month. If the month starts on a Sun/Mon/Tues, the month label\n    // goes on a row above the first of the month. Otherwise, the month label takes up the first\n    // two cells of the first row.\n    var blankCellOffset = 0;\n    var monthLabelCell = document.createElement('td');\n    var monthLabelCellContent = document.createElement('span');\n    var calendarCtrl = this.calendarCtrl;\n\n    monthLabelCellContent.textContent = this.dateLocale.monthHeaderFormatter(date);\n    monthLabelCell.appendChild(monthLabelCellContent);\n    monthLabelCell.classList.add('md-calendar-month-label');\n    // If the entire month is after the max date, render the label as a disabled state.\n    if (calendarCtrl.maxDate && firstDayOfMonth > calendarCtrl.maxDate) {\n      monthLabelCell.classList.add('md-calendar-month-label-disabled');\n    // If the user isn't supposed to be able to change views, render the\n    // label as usual, but disable the clicking functionality.\n    } else if (!calendarCtrl.mode) {\n      monthLabelCell.addEventListener('click', this.monthCtrl.headerClickHandler);\n      monthLabelCell.setAttribute('data-timestamp', firstDayOfMonth.getTime());\n      monthLabelCell.setAttribute('aria-label', this.dateLocale.monthFormatter(date));\n      monthLabelCell.classList.add('md-calendar-label-clickable');\n      monthLabelCell.appendChild(this.arrowIcon.cloneNode(true));\n    }\n\n    if (firstDayOfTheWeek <= 2) {\n      monthLabelCell.setAttribute('colspan', '7');\n\n      var monthLabelRow = this.buildDateRow();\n      monthLabelRow.appendChild(monthLabelCell);\n      monthBody.insertBefore(monthLabelRow, row);\n\n      if (isFinalMonth) {\n        return monthBody;\n      }\n    } else {\n      blankCellOffset = 3;\n      monthLabelCell.setAttribute('colspan', '3');\n      row.appendChild(monthLabelCell);\n    }\n\n    // Add a blank cell for each day of the week that occurs before the first of the month.\n    // For example, if the first day of the month is a Tuesday, add blank cells for Sun and Mon.\n    // The blankCellOffset is needed in cases where the first N cells are used by the month label.\n    for (var i = blankCellOffset; i < firstDayOfTheWeek; i++) {\n      row.appendChild(this.buildDateCell());\n    }\n\n    // Add a cell for each day of the month, keeping track of the day of the week so that\n    // we know when to start a new row.\n    var dayOfWeek = firstDayOfTheWeek;\n    var iterationDate = firstDayOfMonth;\n    for (var d = 1; d <= numberOfDaysInMonth; d++) {\n      // If we've reached the end of the week, start a new row.\n      if (dayOfWeek === 7) {\n        // We've finished the first row, so we're done if this is the final month.\n        if (isFinalMonth) {\n          return monthBody;\n        }\n        dayOfWeek = 0;\n        rowNumber++;\n        row = this.buildDateRow(rowNumber);\n        monthBody.appendChild(row);\n      }\n\n      iterationDate.setDate(d);\n      var cell = this.buildDateCell(iterationDate);\n      row.appendChild(cell);\n\n      dayOfWeek++;\n    }\n\n    // Ensure that the last row of the month has 7 cells.\n    while (row.childNodes.length < 7) {\n      row.appendChild(this.buildDateCell());\n    }\n\n    // Ensure that all months have 6 rows. This is necessary for now because the virtual-repeat\n    // requires that all items have exactly the same height.\n    while (monthBody.childNodes.length < 6) {\n      var whitespaceRow = this.buildDateRow();\n      for (var j = 0; j < 7; j++) {\n        whitespaceRow.appendChild(this.buildDateCell());\n      }\n      monthBody.appendChild(whitespaceRow);\n    }\n\n    return monthBody;\n  };\n\n  /**\n   * Gets the day-of-the-week index for a date for the current locale.\n   * @private\n   * @param {Date} date\n   * @returns {number} The column index of the date in the calendar.\n   */\n  CalendarMonthBodyCtrl.prototype.getLocaleDay_ = function(date) {\n    return (date.getDay() + (7 - this.dateLocale.firstDayOfWeek)) % 7;\n  };\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  CalendarYearCtrl.$inject = [\"$element\", \"$scope\", \"$animate\", \"$q\", \"$$mdDateUtil\", \"$mdUtil\"];\n  angular.module('material.components.datepicker')\n    .directive('mdCalendarYear', calendarDirective);\n\n  /**\n   * Height of one calendar year tbody. This must be made known to the virtual-repeat and is\n   * subsequently used for scrolling to specific years.\n   */\n  var TBODY_HEIGHT = 88;\n\n  /** Private component, representing a list of years in the calendar. */\n  function calendarDirective() {\n    return {\n      template:\n        '<div class=\"md-calendar-scroll-mask\">' +\n          '<md-virtual-repeat-container class=\"md-calendar-scroll-container\">' +\n            '<table role=\"grid\" tabindex=\"0\" class=\"md-calendar\" aria-readonly=\"true\">' +\n              '<tbody ' +\n                  'md-calendar-year-body ' +\n                  'role=\"rowgroup\" ' +\n                  'md-virtual-repeat=\"i in yearCtrl.items\" ' +\n                  'md-year-offset=\"$index\" class=\"md-calendar-year\" ' +\n                  'md-start-index=\"yearCtrl.getFocusedYearIndex()\" ' +\n                  'md-item-size=\"' + TBODY_HEIGHT + '\">' +\n                // The <tr> ensures that the <tbody> will have the proper\n                // height, even though it may be empty.\n                '<tr aria-hidden=\"true\" md-force-height=\"\\'' + TBODY_HEIGHT + 'px\\'\"></tr>' +\n              '</tbody>' +\n            '</table>' +\n          '</md-virtual-repeat-container>' +\n        '</div>',\n      require: ['^^mdCalendar', 'mdCalendarYear'],\n      controller: CalendarYearCtrl,\n      controllerAs: 'yearCtrl',\n      bindToController: true,\n      link: function(scope, element, attrs, controllers) {\n        var calendarCtrl = controllers[0];\n        var yearCtrl = controllers[1];\n        yearCtrl.initialize(calendarCtrl);\n      }\n    };\n  }\n\n  /**\n   * Controller for the mdCalendar component.\n   * @ngInject @constructor\n   */\n  function CalendarYearCtrl($element, $scope, $animate, $q, $$mdDateUtil, $mdUtil) {\n\n    /** @final {!angular.JQLite} */\n    this.$element = $element;\n\n    /** @final {!angular.Scope} */\n    this.$scope = $scope;\n\n    /** @final {!angular.$animate} */\n    this.$animate = $animate;\n\n    /** @final {!angular.$q} */\n    this.$q = $q;\n\n    /** @final */\n    this.dateUtil = $$mdDateUtil;\n\n    /** @final {HTMLElement} */\n    this.calendarScroller = $element[0].querySelector('.md-virtual-repeat-scroller');\n\n    /** @type {boolean} */\n    this.isInitialized = false;\n\n    /** @type {boolean} */\n    this.isMonthTransitionInProgress = false;\n\n    /** @final */\n    this.$mdUtil = $mdUtil;\n\n    var self = this;\n\n    /**\n     * Handles a click event on a date cell.\n     * Created here so that every cell can use the same function instance.\n     * @this {HTMLTableCellElement} The cell that was clicked.\n     */\n    this.cellClickHandler = function() {\n      self.onTimestampSelected($$mdDateUtil.getTimestampFromNode(this));\n    };\n  }\n\n  /**\n   * Initialize the controller by saving a reference to the calendar and\n   * setting up the object that will be iterated by the virtual repeater.\n   */\n  CalendarYearCtrl.prototype.initialize = function(calendarCtrl) {\n    /**\n     * Dummy array-like object for virtual-repeat to iterate over. The length is the total\n     * number of years that can be viewed. We add 1 extra in order to include the current year.\n     */\n\n    this.items = {\n      length: this.dateUtil.getYearDistance(\n        calendarCtrl.firstRenderableDate,\n        calendarCtrl.lastRenderableDate\n      ) + 1\n    };\n\n    this.calendarCtrl = calendarCtrl;\n    this.attachScopeListeners();\n    calendarCtrl.updateVirtualRepeat();\n\n    // Fire the initial render, since we might have missed it the first time it fired.\n    calendarCtrl.ngModelCtrl && calendarCtrl.ngModelCtrl.$render();\n  };\n\n  /**\n   * Gets the \"index\" of the currently selected date as it would be in the virtual-repeat.\n   * @returns {number}\n   */\n  CalendarYearCtrl.prototype.getFocusedYearIndex = function() {\n    var calendarCtrl = this.calendarCtrl;\n\n    return this.dateUtil.getYearDistance(\n      calendarCtrl.firstRenderableDate,\n      calendarCtrl.displayDate || calendarCtrl.selectedDate || calendarCtrl.today\n    );\n  };\n\n  /**\n   * Change the date that is highlighted in the calendar.\n   * @param {Date} date\n   */\n  CalendarYearCtrl.prototype.changeDate = function(date) {\n    // Initialization is deferred until this function is called because we want to reflect\n    // the starting value of ngModel.\n    if (!this.isInitialized) {\n      this.calendarCtrl.hideVerticalScrollbar(this);\n      this.isInitialized = true;\n      return this.$q.when();\n    } else if (this.dateUtil.isValidDate(date) && !this.isMonthTransitionInProgress) {\n      var self = this;\n      var animationPromise = this.animateDateChange(date);\n\n      self.isMonthTransitionInProgress = true;\n      self.calendarCtrl.displayDate = date;\n\n      return animationPromise.then(function() {\n        self.isMonthTransitionInProgress = false;\n      });\n    }\n  };\n\n  /**\n   * Animates the transition from the calendar's current month to the given month.\n   * @param {Date} date\n   * @returns {angular.$q.Promise} The animation promise.\n   */\n  CalendarYearCtrl.prototype.animateDateChange = function(date) {\n    if (this.dateUtil.isValidDate(date)) {\n      var monthDistance = this.dateUtil.getYearDistance(this.calendarCtrl.firstRenderableDate, date);\n      this.calendarScroller.scrollTop = monthDistance * TBODY_HEIGHT;\n    }\n\n    return this.$q.when();\n  };\n\n  /**\n   * Handles the year-view-specific keyboard interactions.\n   * @param {Object} event Scope event object passed by the calendar.\n   * @param {String} action Action, corresponding to the key that was pressed.\n   */\n  CalendarYearCtrl.prototype.handleKeyEvent = function(event, action) {\n    var self = this;\n    var calendarCtrl = self.calendarCtrl;\n    var displayDate = calendarCtrl.displayDate;\n\n    if (action === 'select') {\n      self.changeDate(displayDate).then(function() {\n        self.onTimestampSelected(displayDate);\n      });\n    } else {\n      var date = null;\n      var dateUtil = self.dateUtil;\n\n      switch (action) {\n        case 'move-right': date = dateUtil.incrementMonths(displayDate, 1); break;\n        case 'move-left': date = dateUtil.incrementMonths(displayDate, -1); break;\n\n        case 'move-row-down': date = dateUtil.incrementMonths(displayDate, 6); break;\n        case 'move-row-up': date = dateUtil.incrementMonths(displayDate, -6); break;\n      }\n\n      if (date) {\n        var min = calendarCtrl.minDate ? dateUtil.getFirstDateOfMonth(calendarCtrl.minDate) : null;\n        var max = calendarCtrl.maxDate ? dateUtil.getFirstDateOfMonth(calendarCtrl.maxDate) : null;\n        date = dateUtil.getFirstDateOfMonth(self.dateUtil.clampDate(date, min, max));\n\n        self.changeDate(date).then(function() {\n          calendarCtrl.focusDate(date);\n        });\n      }\n    }\n  };\n\n  /**\n   * Attaches listeners for the scope events that are broadcast by the calendar.\n   */\n  CalendarYearCtrl.prototype.attachScopeListeners = function() {\n    var self = this;\n\n    self.$scope.$on('md-calendar-parent-changed', function(event, value) {\n      self.calendarCtrl.changeSelectedDate(value ? self.dateUtil.getFirstDateOfMonth(value) : value);\n      self.changeDate(value);\n    });\n\n    self.$scope.$on('md-calendar-parent-action', angular.bind(self, self.handleKeyEvent));\n  };\n\n  /**\n   * Handles the behavior when a date is selected. Depending on the `mode`\n   * of the calendar, this can either switch back to the calendar view or\n   * set the model value.\n   * @param {number} timestamp The selected timestamp.\n   */\n  CalendarYearCtrl.prototype.onTimestampSelected = function(timestamp) {\n    var calendarCtrl = this.calendarCtrl;\n\n    if (calendarCtrl.mode) {\n      this.$mdUtil.nextTick(function() {\n        // The timestamp has to be converted to a valid date.\n        calendarCtrl.setNgModelValue(new Date(timestamp));\n      });\n    } else {\n      calendarCtrl.setCurrentView('month', timestamp);\n    }\n  };\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  CalendarYearBodyCtrl.$inject = [\"$element\", \"$$mdDateUtil\", \"$mdDateLocale\"];\n  angular.module('material.components.datepicker')\n      .directive('mdCalendarYearBody', mdCalendarYearDirective);\n\n  /**\n   * Private component, consumed by the md-calendar-year, which separates the DOM construction logic\n   * and allows for the year view to use md-virtual-repeat.\n   */\n  function mdCalendarYearDirective() {\n    return {\n      require: ['^^mdCalendar', '^^mdCalendarYear', 'mdCalendarYearBody'],\n      scope: { offset: '=mdYearOffset' },\n      controller: CalendarYearBodyCtrl,\n      controllerAs: 'mdYearBodyCtrl',\n      bindToController: true,\n      link: function(scope, element, attrs, controllers) {\n        var calendarCtrl = controllers[0];\n        var yearCtrl = controllers[1];\n        var yearBodyCtrl = controllers[2];\n\n        yearBodyCtrl.calendarCtrl = calendarCtrl;\n        yearBodyCtrl.yearCtrl = yearCtrl;\n\n        scope.$watch(function() { return yearBodyCtrl.offset; }, function(offset) {\n          if (angular.isNumber(offset)) {\n            yearBodyCtrl.generateContent();\n          }\n        });\n      }\n    };\n  }\n\n  /**\n   * Controller for a single year.\n   * @ngInject @constructor\n   */\n  function CalendarYearBodyCtrl($element, $$mdDateUtil, $mdDateLocale) {\n    /**\n     * @final\n     * @type {!JQLite}\n     */\n    this.$element = $element;\n\n    /** @final */\n    this.dateUtil = $$mdDateUtil;\n\n    /** @final */\n    this.dateLocale = $mdDateLocale;\n\n    /** @type {Object} Reference to the calendar. */\n    this.calendarCtrl = null;\n\n    /** @type {Object} Reference to the year view. */\n    this.yearCtrl = null;\n\n    /**\n     * Number of months from the start of the month \"items\" that the currently rendered month\n     * occurs. Set via angular data binding.\n     * @type {number|null}\n     */\n    this.offset = null;\n\n    /**\n     * Date cell to focus after appending the month to the document.\n     * @type {HTMLElement}\n     */\n    this.focusAfterAppend = null;\n  }\n\n  /** Generate and append the content for this year to the directive element. */\n  CalendarYearBodyCtrl.prototype.generateContent = function() {\n    var date = this.dateUtil.incrementYears(this.calendarCtrl.firstRenderableDate, this.offset);\n\n    this.$element\n      .empty()\n      .append(this.buildCalendarForYear(date));\n\n    if (this.focusAfterAppend) {\n      this.focusAfterAppend.classList.add(this.calendarCtrl.FOCUSED_DATE_CLASS);\n      this.focusAfterAppend = null;\n    }\n  };\n\n  /**\n   * Creates a single cell to contain a year in the calendar.\n   * @param {number} year Four-digit year.\n   * @param {number} month Zero-indexed month.\n   * @returns {HTMLElement}\n   */\n  CalendarYearBodyCtrl.prototype.buildMonthCell = function(year, month) {\n    var calendarCtrl = this.calendarCtrl;\n    var yearCtrl = this.yearCtrl;\n    var cell = this.buildBlankCell();\n\n    // Represent this month/year as a date.\n    var firstOfMonth = new Date(year, month, 1);\n    cell.setAttribute('aria-label', this.dateLocale.monthFormatter(firstOfMonth));\n    cell.id = calendarCtrl.getDateId(firstOfMonth, 'year');\n\n    // Use `data-timestamp` attribute because IE10 does not support the `dataset` property.\n    cell.setAttribute('data-timestamp', String(firstOfMonth.getTime()));\n\n    if (this.dateUtil.isSameMonthAndYear(firstOfMonth, calendarCtrl.today)) {\n      cell.classList.add(calendarCtrl.TODAY_CLASS);\n    }\n\n    if (this.dateUtil.isValidDate(calendarCtrl.selectedDate) &&\n        this.dateUtil.isSameMonthAndYear(firstOfMonth, calendarCtrl.selectedDate)) {\n      cell.classList.add(calendarCtrl.SELECTED_DATE_CLASS);\n      cell.setAttribute('aria-selected', 'true');\n    }\n\n    var cellText = this.dateLocale.shortMonths[month];\n\n    if (this.dateUtil.isMonthWithinRange(\n          firstOfMonth, calendarCtrl.minDate, calendarCtrl.maxDate) &&\n      (!angular.isFunction(calendarCtrl.monthFilter) ||\n        calendarCtrl.monthFilter(firstOfMonth))) {\n      var selectionIndicator = document.createElement('span');\n      selectionIndicator.classList.add('md-calendar-date-selection-indicator');\n      selectionIndicator.textContent = cellText;\n      cell.appendChild(selectionIndicator);\n      cell.addEventListener('click', yearCtrl.cellClickHandler);\n\n      if (calendarCtrl.displayDate &&\n          this.dateUtil.isSameMonthAndYear(firstOfMonth, calendarCtrl.displayDate)) {\n        this.focusAfterAppend = cell;\n      }\n    } else {\n      cell.classList.add('md-calendar-date-disabled');\n      cell.textContent = cellText;\n    }\n\n    return cell;\n  };\n\n  /**\n   * Builds a blank cell.\n   * @return {HTMLElement}\n   */\n  CalendarYearBodyCtrl.prototype.buildBlankCell = function() {\n    var cell = document.createElement('td');\n    cell.tabIndex = -1;\n    cell.classList.add('md-calendar-date');\n    cell.setAttribute('role', 'gridcell');\n\n    cell.setAttribute('tabindex', '-1');\n    return cell;\n  };\n\n  /**\n   * Builds the <tbody> content for the given year.\n   * @param {Date} date Date for which the content should be built.\n   * @returns {DocumentFragment} A document fragment containing the months within the year.\n   */\n  CalendarYearBodyCtrl.prototype.buildCalendarForYear = function(date) {\n    // Store rows for the month in a document fragment so that we can append them all at once.\n    var year = date.getFullYear();\n    var yearBody = document.createDocumentFragment();\n\n    var monthCell, i;\n    // First row contains label and Jan-Jun.\n    var firstRow = document.createElement('tr');\n    var labelCell = document.createElement('td');\n    labelCell.className = 'md-calendar-month-label';\n    labelCell.textContent = String(year);\n    firstRow.appendChild(labelCell);\n\n    for (i = 0; i < 6; i++) {\n      firstRow.appendChild(this.buildMonthCell(year, i));\n    }\n    yearBody.appendChild(firstRow);\n\n    // Second row contains a blank cell and Jul-Dec.\n    var secondRow = document.createElement('tr');\n    secondRow.appendChild(this.buildBlankCell());\n    for (i = 6; i < 12; i++) {\n      secondRow.appendChild(this.buildMonthCell(year, i));\n    }\n    yearBody.appendChild(secondRow);\n\n    return yearBody;\n  };\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  /**\n   * @ngdoc service\n   * @name $mdDateLocaleProvider\n   * @module material.components.datepicker\n   *\n   * @description\n   * The `$mdDateLocaleProvider` is the provider that creates the `$mdDateLocale` service.\n   * This provider that allows the user to specify messages, formatters, and parsers for date\n   * internationalization. The `$mdDateLocale` service itself is consumed by AngularJS Material\n   * components that deal with dates\n   * (i.e. <a ng-href=\"api/directive/mdDatepicker\">mdDatepicker</a>).\n   *\n   * @property {Array<string>} months Array of month names (in order).\n   * @property {Array<string>} shortMonths Array of abbreviated month names.\n   * @property {Array<string>} days Array of the days of the week (in order).\n   * @property {Array<string>} shortDays Array of abbreviated days of the week.\n   * @property {Array<string>} dates Array of dates of the month. Only necessary for locales\n   *  using a numeral system other than [1, 2, 3...].\n   * @property {Array<string>} firstDayOfWeek The first day of the week. Sunday = 0, Monday = 1,\n   *  etc.\n   * @property {function(string): Date} parseDate Function that converts a date string to a Date\n   *  object (the date portion).\n   * @property {function(Date, string): string} formatDate Function to format a date object to a\n   *  string. The datepicker directive also provides the time zone, if it was specified.\n   * @property {function(Date): string} monthHeaderFormatter Function that returns the label for\n   *  a month given a date.\n   * @property {function(Date): string} monthFormatter Function that returns the full name of a month\n   *  for a given date.\n   * @property {function(number): string} weekNumberFormatter Function that returns a label for\n   *  a week given the week number.\n   * @property {function(Date): string} longDateFormatter Function that formats a date into a long\n   *  `aria-label` that is read by the screen reader when the focused date changes.\n   * @property {string} msgCalendar Translation of the label \"Calendar\" for the current locale.\n   * @property {string} msgOpenCalendar Translation of the button label \"Open calendar\" for the\n   *  current locale.\n   * @property {Date} firstRenderableDate The date from which the datepicker calendar will begin\n   *  rendering. Note that this will be ignored if a minimum date is set.\n   *  Defaults to January 1st 1880.\n   * @property {Date} lastRenderableDate The last date that will be rendered by the datepicker\n   *  calendar. Note that this will be ignored if a maximum date is set.\n   *  Defaults to January 1st 2130.\n   * @property {function(string): boolean} isDateComplete Function to determine whether a string\n   *  makes sense to be parsed to a `Date` object. Returns `true` if the date appears to be complete\n   *  and parsing should occur. By default, this checks for 3 groups of text or numbers separated\n   *  by delimiters. This means that by default, date strings must include a month, day, and year\n   *  to be parsed and for the model to be updated.\n   *\n   * @usage\n   * <hljs lang=\"js\">\n   * myAppModule.config(function($mdDateLocaleProvider) {\n   *\n   *     // Example of a French localization.\n   *     $mdDateLocaleProvider.months = ['janvier', 'février', 'mars', ...];\n   *     $mdDateLocaleProvider.shortMonths = ['janv', 'févr', 'mars', ...];\n   *     $mdDateLocaleProvider.days = ['dimanche', 'lundi', 'mardi', ...];\n   *     $mdDateLocaleProvider.shortDays = ['Di', 'Lu', 'Ma', ...];\n   *\n   *     // Can change week display to start on Monday.\n   *     $mdDateLocaleProvider.firstDayOfWeek = 1;\n   *\n   *     // Optional.\n   *     $mdDateLocaleProvider.dates = [1, 2, 3, 4, 5, 6, ...];\n   *\n   *     // Example uses moment.js to parse and format dates.\n   *     $mdDateLocaleProvider.parseDate = function(dateString) {\n   *       var m = moment(dateString, 'L', true);\n   *       return m.isValid() ? m.toDate() : new Date(NaN);\n   *     };\n   *\n   *     $mdDateLocaleProvider.formatDate = function(date) {\n   *       var m = moment(date);\n   *       return m.isValid() ? m.format('L') : '';\n   *     };\n   *\n   *     // Allow only a day and month to be specified.\n   *     // This is required if using the 'M/D' format with moment.js.\n   *     $mdDateLocaleProvider.isDateComplete = function(dateString) {\n   *       dateString = dateString.trim();\n   *\n   *       // Look for two chunks of content (either numbers or text) separated by delimiters.\n   *       var re = /^(([a-zA-Z]{3,}|[0-9]{1,4})([ .,]+|[/-]))([a-zA-Z]{3,}|[0-9]{1,4})/;\n   *       return re.test(dateString);\n   *     };\n   *\n   *     $mdDateLocaleProvider.monthHeaderFormatter = function(date) {\n   *       return myShortMonths[date.getMonth()] + ' ' + date.getFullYear();\n   *     };\n   *\n   *     // In addition to date display, date components also need localized messages\n   *     // for aria-labels for screen-reader users.\n   *\n   *     $mdDateLocaleProvider.weekNumberFormatter = function(weekNumber) {\n   *       return 'Semaine ' + weekNumber;\n   *     };\n   *\n   *     $mdDateLocaleProvider.msgCalendar = 'Calendrier';\n   *     $mdDateLocaleProvider.msgOpenCalendar = 'Ouvrir le calendrier';\n   *\n   *     // You can also set when your calendar begins and ends.\n   *     $mdDateLocaleProvider.firstRenderableDate = new Date(1776, 6, 4);\n   *     $mdDateLocaleProvider.lastRenderableDate = new Date(2012, 11, 21);\n   * });\n   * </hljs>\n   *\n   */\n  angular.module('material.components.datepicker').config([\"$provide\", function($provide) {\n    // TODO(jelbourn): Assert provided values are correctly formatted. Need assertions.\n\n    /** @constructor */\n    function DateLocaleProvider() {\n      /** Array of full month names. E.g., ['January', 'February', ...] */\n      this.months = null;\n\n      /** Array of abbreviated month names. E.g., ['Jan', 'Feb', ...] */\n      this.shortMonths = null;\n\n      /** Array of full day of the week names. E.g., ['Monday', 'Tuesday', ...] */\n      this.days = null;\n\n      /** Array of abbreviated dat of the week names. E.g., ['M', 'T', ...] */\n      this.shortDays = null;\n\n      /** Array of dates of a month (1 - 31). Characters might be different in some locales. */\n      this.dates = null;\n\n      /** Index of the first day of the week. 0 = Sunday, 1 = Monday, etc. */\n      this.firstDayOfWeek = 0;\n\n      /**\n       * Function that converts the date portion of a Date to a string.\n       * @type {(function(Date): string)}\n       */\n      this.formatDate = null;\n\n      /**\n       * Function that converts a date string to a Date object (the date portion)\n       * @type {function(string): Date}\n       */\n      this.parseDate = null;\n\n      /**\n       * Function that formats a Date into a month header string.\n       * @type {function(Date): string}\n       */\n      this.monthHeaderFormatter = null;\n\n      /**\n       * Function that formats a week number into a label for the week.\n       * @type {function(number): string}\n       */\n      this.weekNumberFormatter = null;\n\n      /**\n       * Function that formats a date into a long aria-label that is read\n       * when the focused date changes.\n       * @type {function(Date): string}\n       */\n      this.longDateFormatter = null;\n\n      /**\n       * Function to determine whether a string makes sense to be\n       * parsed to a Date object.\n       * @type {function(string): boolean}\n       */\n      this.isDateComplete = null;\n\n      /**\n       * ARIA label for the calendar \"dialog\" used in the datepicker.\n       * @type {string}\n       */\n      this.msgCalendar = '';\n\n      /**\n       * ARIA label for the datepicker's \"Open calendar\" buttons.\n       * @type {string}\n       */\n      this.msgOpenCalendar = '';\n    }\n\n    /**\n     * Factory function that returns an instance of the dateLocale service.\n     * @ngInject\n     * @param $locale\n     * @param $filter\n     * @returns {DateLocale}\n     */\n    DateLocaleProvider.prototype.$get = function($locale, $filter) {\n      /**\n       * Default date-to-string formatting function.\n       * @param {!Date} date\n       * @param {string=} timezone\n       * @returns {string}\n       */\n      function defaultFormatDate(date, timezone) {\n        if (!date) {\n          return '';\n        }\n\n        // All of the dates created through ng-material *should* be set to midnight.\n        // If we encounter a date where the localeTime shows at 11pm instead of midnight,\n        // we have run into an issue with DST where we need to increment the hour by one:\n        // var d = new Date(1992, 9, 8, 0, 0, 0);\n        // d.toLocaleString(); // == \"10/7/1992, 11:00:00 PM\"\n        var localeTime = date.toLocaleTimeString();\n        var formatDate = date;\n        if (date.getHours() === 0 &&\n            (localeTime.indexOf('11:') !== -1 || localeTime.indexOf('23:') !== -1)) {\n          formatDate = new Date(date.getFullYear(), date.getMonth(), date.getDate(), 1, 0, 0);\n        }\n\n        return $filter('date')(formatDate, 'M/d/yyyy', timezone);\n      }\n\n      /**\n       * Default string-to-date parsing function.\n       * @param {string|number} dateString\n       * @returns {!Date}\n       */\n      function defaultParseDate(dateString) {\n        return new Date(dateString);\n      }\n\n      /**\n       * Default function to determine whether a string makes sense to be\n       * parsed to a Date object.\n       *\n       * This is very permissive and is just a basic check to ensure that\n       * things like single integers aren't able to be parsed into dates.\n       * @param {string} dateString\n       * @returns {boolean}\n       */\n      function defaultIsDateComplete(dateString) {\n        dateString = dateString.trim();\n\n        // Looks for three chunks of content (either numbers or text) separated\n        // by delimiters.\n        var re = /^(([a-zA-Z]{3,}|[0-9]{1,4})([ .,]+|[/-])){2}([a-zA-Z]{3,}|[0-9]{1,4})$/;\n        return re.test(dateString);\n      }\n\n      /**\n       * Default date-to-string formatter to get a month header.\n       * @param {!Date} date\n       * @returns {string}\n       */\n      function defaultMonthHeaderFormatter(date) {\n        return service.shortMonths[date.getMonth()] + ' ' + date.getFullYear();\n      }\n\n      /**\n       * Default formatter for a month.\n       * @param {!Date} date\n       * @returns {string}\n       */\n      function defaultMonthFormatter(date) {\n        return service.months[date.getMonth()] + ' ' + date.getFullYear();\n      }\n\n      /**\n       * Default week number formatter.\n       * @param number\n       * @returns {string}\n       */\n      function defaultWeekNumberFormatter(number) {\n        return 'Week ' + number;\n      }\n\n      /**\n       * Default formatter for date cell aria-labels.\n       * @param {!Date} date\n       * @returns {string}\n       */\n      function defaultLongDateFormatter(date) {\n        // Example: 'Thursday June 18 2015'\n        return [\n          service.days[date.getDay()],\n          service.months[date.getMonth()],\n          service.dates[date.getDate()],\n          date.getFullYear()\n        ].join(' ');\n      }\n\n      // The default \"short\" day strings are the first character of each day,\n      // e.g., \"Monday\" => \"M\".\n      var defaultShortDays = $locale.DATETIME_FORMATS.SHORTDAY.map(function(day) {\n        return day.substring(0, 1);\n      });\n\n      // The default dates are simply the numbers 1 through 31.\n      var defaultDates = Array(32);\n      for (var i = 1; i <= 31; i++) {\n        defaultDates[i] = i;\n      }\n\n      // Default ARIA messages are in English (US).\n      var defaultMsgCalendar = 'Calendar';\n      var defaultMsgOpenCalendar = 'Open calendar';\n\n      // Default start/end dates that are rendered in the calendar.\n      var defaultFirstRenderableDate = new Date(1880, 0, 1);\n      var defaultLastRendereableDate = new Date(defaultFirstRenderableDate.getFullYear() + 250, 0, 1);\n\n      var service = {\n        months: this.months || $locale.DATETIME_FORMATS.MONTH,\n        shortMonths: this.shortMonths || $locale.DATETIME_FORMATS.SHORTMONTH,\n        days: this.days || $locale.DATETIME_FORMATS.DAY,\n        shortDays: this.shortDays || defaultShortDays,\n        dates: this.dates || defaultDates,\n        firstDayOfWeek: this.firstDayOfWeek || 0,\n        formatDate: this.formatDate || defaultFormatDate,\n        parseDate: this.parseDate || defaultParseDate,\n        isDateComplete: this.isDateComplete || defaultIsDateComplete,\n        monthHeaderFormatter: this.monthHeaderFormatter || defaultMonthHeaderFormatter,\n        monthFormatter: this.monthFormatter || defaultMonthFormatter,\n        weekNumberFormatter: this.weekNumberFormatter || defaultWeekNumberFormatter,\n        longDateFormatter: this.longDateFormatter || defaultLongDateFormatter,\n        msgCalendar: this.msgCalendar || defaultMsgCalendar,\n        msgOpenCalendar: this.msgOpenCalendar || defaultMsgOpenCalendar,\n        firstRenderableDate: this.firstRenderableDate || defaultFirstRenderableDate,\n        lastRenderableDate: this.lastRenderableDate || defaultLastRendereableDate\n      };\n\n      return service;\n    };\n    DateLocaleProvider.prototype.$get.$inject = [\"$locale\", \"$filter\"];\n\n    $provide.provider('$mdDateLocale', new DateLocaleProvider());\n  }]);\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  /**\n   * Utility for performing date calculations to facilitate operation of the calendar and\n   * datepicker.\n   */\n  angular.module('material.components.datepicker').factory('$$mdDateUtil', [\"$mdDateLocale\", function($mdDateLocale) {\n    return {\n      getFirstDateOfMonth: getFirstDateOfMonth,\n      getNumberOfDaysInMonth: getNumberOfDaysInMonth,\n      getDateInNextMonth: getDateInNextMonth,\n      getDateInPreviousMonth: getDateInPreviousMonth,\n      isInNextMonth: isInNextMonth,\n      isInPreviousMonth: isInPreviousMonth,\n      getDateMidpoint: getDateMidpoint,\n      isSameMonthAndYear: isSameMonthAndYear,\n      getWeekOfMonth: getWeekOfMonth,\n      incrementDays: incrementDays,\n      incrementMonths: incrementMonths,\n      getLastDateOfMonth: getLastDateOfMonth,\n      isSameDay: isSameDay,\n      getMonthDistance: getMonthDistance,\n      isValidDate: isValidDate,\n      setDateTimeToMidnight: setDateTimeToMidnight,\n      createDateAtMidnight: createDateAtMidnight,\n      isDateWithinRange: isDateWithinRange,\n      incrementYears: incrementYears,\n      getYearDistance: getYearDistance,\n      clampDate: clampDate,\n      getTimestampFromNode: getTimestampFromNode,\n      isMonthWithinRange: isMonthWithinRange,\n      removeLocalTzAndReparseDate: removeLocalTzAndReparseDate\n    };\n\n    /**\n     * Gets the first day of the month for the given date's month.\n     * @param {Date} date\n     * @returns {Date}\n     */\n    function getFirstDateOfMonth(date) {\n      return new Date(date.getFullYear(), date.getMonth(), 1);\n    }\n\n    /**\n     * Gets the number of days in the month for the given date's month.\n     * @param date\n     * @returns {number}\n     */\n    function getNumberOfDaysInMonth(date) {\n      return new Date(date.getFullYear(), date.getMonth() + 1, 0).getDate();\n    }\n\n    /**\n     * Get an arbitrary date in the month after the given date's month.\n     * @param date\n     * @returns {Date}\n     */\n    function getDateInNextMonth(date) {\n      return new Date(date.getFullYear(), date.getMonth() + 1, 1);\n    }\n\n    /**\n     * Get an arbitrary date in the month before the given date's month.\n     * @param date\n     * @returns {Date}\n     */\n    function getDateInPreviousMonth(date) {\n      return new Date(date.getFullYear(), date.getMonth() - 1, 1);\n    }\n\n    /**\n     * Gets whether two dates have the same month and year.\n     * @param {Date} d1\n     * @param {Date} d2\n     * @returns {boolean}\n     */\n    function isSameMonthAndYear(d1, d2) {\n      return d1.getFullYear() === d2.getFullYear() && d1.getMonth() === d2.getMonth();\n    }\n\n    /**\n     * Gets whether two dates are the same day (not not necessarily the same time).\n     * @param {Date} d1\n     * @param {Date} d2\n     * @returns {boolean}\n     */\n    function isSameDay(d1, d2) {\n      return d1.getDate() == d2.getDate() && isSameMonthAndYear(d1, d2);\n    }\n\n    /**\n     * Gets whether a date is in the month immediately after some date.\n     * @param {Date} startDate The date from which to compare.\n     * @param {Date} endDate The date to check.\n     * @returns {boolean}\n     */\n    function isInNextMonth(startDate, endDate) {\n      var nextMonth = getDateInNextMonth(startDate);\n      return isSameMonthAndYear(nextMonth, endDate);\n    }\n\n    /**\n     * Gets whether a date is in the month immediately before some date.\n     * @param {Date} startDate The date from which to compare.\n     * @param {Date} endDate The date to check.\n     * @returns {boolean}\n     */\n    function isInPreviousMonth(startDate, endDate) {\n      var previousMonth = getDateInPreviousMonth(startDate);\n      return isSameMonthAndYear(endDate, previousMonth);\n    }\n\n    /**\n     * Gets the midpoint between two dates.\n     * @param {Date} d1\n     * @param {Date} d2\n     * @returns {Date}\n     */\n    function getDateMidpoint(d1, d2) {\n      return createDateAtMidnight((d1.getTime() + d2.getTime()) / 2);\n    }\n\n    /**\n     * Gets the week of the month that a given date occurs in.\n     * @param {Date} date\n     * @returns {number} Index of the week of the month (zero-based).\n     */\n    function getWeekOfMonth(date) {\n      var firstDayOfMonth = getFirstDateOfMonth(date);\n      return Math.floor((firstDayOfMonth.getDay() + date.getDate() - 1) / 7);\n    }\n\n    /**\n     * Gets a new date incremented by the given number of days. Number of days can be negative.\n     * @param {Date} date\n     * @param {number} numberOfDays\n     * @returns {Date}\n     */\n    function incrementDays(date, numberOfDays) {\n      return new Date(date.getFullYear(), date.getMonth(), date.getDate() + numberOfDays);\n    }\n\n    /**\n     * Gets a new date incremented by the given number of months. Number of months can be negative.\n     * If the date of the given month does not match the target month, the date will be set to the\n     * last day of the month.\n     * @param {Date} date\n     * @param {number} numberOfMonths\n     * @returns {Date}\n     */\n    function incrementMonths(date, numberOfMonths) {\n      // If the same date in the target month does not actually exist, the Date object will\n      // automatically advance *another* month by the number of missing days.\n      // For example, if you try to go from Jan. 30 to Feb. 30, you'll end up on March 2.\n      // So, we check if the month overflowed and go to the last day of the target month instead.\n      var dateInTargetMonth = new Date(date.getFullYear(), date.getMonth() + numberOfMonths, 1);\n      var numberOfDaysInMonth = getNumberOfDaysInMonth(dateInTargetMonth);\n      if (numberOfDaysInMonth < date.getDate()) {\n        dateInTargetMonth.setDate(numberOfDaysInMonth);\n      } else {\n        dateInTargetMonth.setDate(date.getDate());\n      }\n\n      return dateInTargetMonth;\n    }\n\n    /**\n     * Get the integer distance between two months. This *only* considers the month and year\n     * portion of the Date instances.\n     *\n     * @param {Date} start\n     * @param {Date} end\n     * @returns {number} Number of months between `start` and `end`. If `end` is before `start`\n     *     chronologically, this number will be negative.\n     */\n    function getMonthDistance(start, end) {\n      return (12 * (end.getFullYear() - start.getFullYear())) + (end.getMonth() - start.getMonth());\n    }\n\n    /**\n     * Gets the last day of the month for the given date.\n     * @param {Date} date\n     * @returns {Date}\n     */\n    function getLastDateOfMonth(date) {\n      return new Date(date.getFullYear(), date.getMonth(), getNumberOfDaysInMonth(date));\n    }\n\n    /**\n     * Checks whether a date is valid.\n     * @param {Date} date\n     * @return {boolean} Whether the date is a valid Date.\n     */\n    function isValidDate(date) {\n      return date && date.getTime && !isNaN(date.getTime());\n    }\n\n    /**\n     * Sets a date's time to midnight.\n     * @param {Date} date\n     */\n    function setDateTimeToMidnight(date) {\n      if (isValidDate(date)) {\n        date.setHours(0, 0, 0, 0);\n      }\n    }\n\n    /**\n     * Creates a date with the time set to midnight.\n     * Drop-in replacement for two forms of the Date constructor via opt_value.\n     * @param {number|Date=} opt_value Leave undefined for a Date representing now. Or use a\n     *  single value representing the number of seconds since the Unix Epoch or a Date object.\n     * @return {Date} New date with time set to midnight.\n     */\n    function createDateAtMidnight(opt_value) {\n      var date;\n      if (angular.isDate(opt_value)) {\n        date = opt_value;\n      } else if (angular.isNumber(opt_value)) {\n        date = new Date(opt_value);\n      } else {\n        date = new Date();\n      }\n      setDateTimeToMidnight(date);\n      return date;\n    }\n\n     /**\n      * Checks if a date is within a min and max range, ignoring the time component.\n      * If minDate or maxDate are not dates, they are ignored.\n      * @param {Date} date\n      * @param {Date} minDate\n      * @param {Date} maxDate\n      */\n     function isDateWithinRange(date, minDate, maxDate) {\n       var dateAtMidnight = createDateAtMidnight(date);\n       var minDateAtMidnight = isValidDate(minDate) ? createDateAtMidnight(minDate) : null;\n       var maxDateAtMidnight = isValidDate(maxDate) ? createDateAtMidnight(maxDate) : null;\n       return (!minDateAtMidnight || minDateAtMidnight <= dateAtMidnight) &&\n           (!maxDateAtMidnight || maxDateAtMidnight >= dateAtMidnight);\n     }\n\n    /**\n     * Gets a new date incremented by the given number of years. Number of years can be negative.\n     * See `incrementMonths` for notes on overflow for specific dates.\n     * @param {Date} date\n     * @param {number} numberOfYears\n     * @returns {Date}\n     */\n     function incrementYears(date, numberOfYears) {\n       return incrementMonths(date, numberOfYears * 12);\n     }\n\n     /**\n      * Get the integer distance between two years. This *only* considers the year portion of the\n      * Date instances.\n      *\n      * @param {Date} start\n      * @param {Date} end\n      * @returns {number} Number of months between `start` and `end`. If `end` is before `start`\n      *     chronologically, this number will be negative.\n      */\n     function getYearDistance(start, end) {\n       return end.getFullYear() - start.getFullYear();\n     }\n\n     /**\n      * Clamps a date between a minimum and a maximum date.\n      * @param {Date} date Date to be clamped\n      * @param {Date=} minDate Minimum date\n      * @param {Date=} maxDate Maximum date\n      * @return {Date}\n      */\n     function clampDate(date, minDate, maxDate) {\n       var boundDate = date;\n       if (minDate && date < minDate) {\n         boundDate = new Date(minDate.getTime());\n       }\n       if (maxDate && date > maxDate) {\n         boundDate = new Date(maxDate.getTime());\n       }\n       return boundDate;\n     }\n\n     /**\n      * Extracts and parses the timestamp from a DOM node.\n      * @param  {HTMLElement} node Node from which the timestamp will be extracted.\n      * @return {number} Time since epoch.\n      */\n     function getTimestampFromNode(node) {\n       if (node && node.hasAttribute('data-timestamp')) {\n         return Number(node.getAttribute('data-timestamp'));\n       }\n     }\n\n     /**\n      * Checks if a month is within a min and max range, ignoring the date and time components.\n      * If minDate or maxDate are not dates, they are ignored.\n      * @param {Date} date\n      * @param {Date} minDate\n      * @param {Date} maxDate\n      */\n     function isMonthWithinRange(date, minDate, maxDate) {\n       var month = date.getMonth();\n       var year = date.getFullYear();\n\n       return (!minDate || minDate.getFullYear() < year || minDate.getMonth() <= month) &&\n        (!maxDate || maxDate.getFullYear() > year || maxDate.getMonth() >= month);\n     }\n\n    /**\n     * @param {Date} value date in local timezone\n     * @return {Date} date with local timezone offset removed\n     */\n    function removeLocalTzAndReparseDate(value) {\n      var dateValue, formattedDate;\n      // Remove the local timezone offset before calling formatDate.\n      dateValue = new Date(value.getTime() + 60000 * value.getTimezoneOffset());\n      formattedDate = $mdDateLocale.formatDate(dateValue);\n      // parseDate only works with a date formatted by formatDate when using Moment validation.\n      return $mdDateLocale.parseDate(formattedDate);\n    }\n  }]);\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  // TODO(jelbourn): forward more attributes to the internal input (required, autofocus, etc.)\n  // TODO(jelbourn): something better for mobile (calendar panel takes up entire screen?)\n  // TODO(jelbourn): input behavior (masking? auto-complete?)\n\n  DatePickerCtrl.$inject = [\"$scope\", \"$element\", \"$attrs\", \"$window\", \"$mdConstant\", \"$mdTheming\", \"$mdUtil\", \"$mdDateLocale\", \"$$mdDateUtil\", \"$$rAF\", \"$filter\", \"$timeout\"];\n  datePickerDirective.$inject = [\"$$mdSvgRegistry\", \"$mdUtil\", \"$mdAria\", \"inputDirective\"];\n  angular.module('material.components.datepicker')\n      .directive('mdDatepicker', datePickerDirective);\n\n  /**\n   * @ngdoc directive\n   * @name mdDatepicker\n   * @module material.components.datepicker\n   *\n   * @param {Date} ng-model The component's model. Expects either a JavaScript Date object or a\n   *  value that can be parsed into one (e.g. a ISO 8601 string).\n   * @param {Object=} ng-model-options Allows tuning of the way in which `ng-model` is being\n   *  updated. Also allows for a timezone to be specified.\n   *  <a href=\"https://docs.angularjs.org/api/ng/directive/ngModelOptions#usage\">\n   *    Read more at the ngModelOptions docs.</a>\n   * @param {expression=} ng-change Expression evaluated when the model value changes.\n   * @param {expression=} ng-focus Expression evaluated when the input is focused or the calendar\n   *  is opened.\n   * @param {expression=} ng-blur Expression evaluated when focus is removed from the input or the\n   *  calendar is closed.\n   * @param {boolean=} ng-disabled Whether the datepicker is disabled.\n   * @param {boolean=} ng-required Whether a value is required for the datepicker.\n   * @param {Date=} md-min-date Expression representing a min date (inclusive).\n   * @param {Date=} md-max-date Expression representing a max date (inclusive).\n   * @param {(function(Date): boolean)=} md-date-filter Function expecting a date and returning a\n   *  boolean whether it can be selected in \"day\" mode or not. Returning false will also trigger a\n   *  `filtered` model validation error.\n   * @param {(function(Date): boolean)=} md-month-filter Function expecting a date and returning a\n   *  boolean whether it can be selected in \"month\" mode or not. Returning false will also trigger a\n   *  `filtered` model validation error.\n   * @param {string=} md-placeholder The date input placeholder value.\n   * @param {string=} md-open-on-focus When present, the calendar will be opened when the input\n   *  is focused.\n   * @param {Boolean=} md-is-open Expression that can be used to open the datepicker's calendar\n   *  on-demand.\n   * @param {string=} md-current-view Default open view of the calendar pane. Can be either\n   *  \"month\" or \"year\".\n   * @param {string=} md-mode Restricts the user to only selecting a value from a particular view.\n   *  This option can be used if the user is only supposed to choose from a certain date type\n   *  (e.g. only selecting the month).\n   * Can be either \"month\" or \"day\". **Note** that this will overwrite the `md-current-view` value.\n   * @param {string=} md-hide-icons Determines which datepicker icons should be hidden. Note that\n   *  this may cause the datepicker to not align properly with other components.\n   *  **Use at your own risk.** Possible values are:\n   * * `\"all\"` - Hides all icons.\n   * * `\"calendar\"` - Only hides the calendar icon.\n   * * `\"triangle\"` - Only hides the triangle icon.\n   * @param {Object=} md-date-locale Allows for the values from the `$mdDateLocaleProvider` to be\n   * overwritten on a per-element basis (e.g. `msgOpenCalendar` can be overwritten with\n   * `md-date-locale=\"{ msgOpenCalendar: 'Open a special calendar' }\"`).\n   * @param {string=} input-aria-describedby A space-separated list of element IDs. This should\n   *  contain the IDs of any elements that describe this datepicker. Screen readers will read the\n   *  content of these elements at the end of announcing that the datepicker has been selected\n   *  and describing its current state. The descriptive elements do not need to be visible on the\n   *  page.\n   * @param {string=} input-aria-labelledby A space-separated list of element IDs. The ideal use\n   *  case is that this would contain the ID of a `<label>` element should be associated with this\n   *  datepicker. This is necessary when using `md-datepicker` inside of an `md-input-container`\n   *  with a `<label>`.<br><br>\n   *  For `<label id=\"start-date\">Start Date</label>`, you would set this to\n   *  `input-aria-labelledby=\"start-date\"`.\n   *\n   * @description\n   * `<md-datepicker>` is a component used to select a single date.\n   * For information on how to configure internationalization for the date picker,\n   * see <a ng-href=\"api/service/$mdDateLocaleProvider\">$mdDateLocaleProvider</a>.\n   *\n   * This component supports\n   * [ngMessages](https://docs.angularjs.org/api/ngMessages/directive/ngMessages).\n   * Supported attributes are:\n   * * `required`: whether a required date is not set.\n   * * `mindate`: whether the selected date is before the minimum allowed date.\n   * * `maxdate`: whether the selected date is after the maximum allowed date.\n   * * `debounceInterval`: ms to delay input processing (since last debounce reset);\n   *    default value 500ms\n   *\n   * @usage\n   * <hljs lang=\"html\">\n   *   <md-datepicker ng-model=\"birthday\"></md-datepicker>\n   * </hljs>\n   *\n   */\n\n  function datePickerDirective($$mdSvgRegistry, $mdUtil, $mdAria, inputDirective) {\n    return {\n      template: function(tElement, tAttrs) {\n        // Buttons are not in the tab order because users can open the calendar via keyboard\n        // interaction on the text input, and multiple tab stops for one component (picker)\n        // may be confusing.\n        var hiddenIcons = tAttrs.mdHideIcons;\n        var inputAriaDescribedby = tAttrs.inputAriaDescribedby;\n        var inputAriaLabelledby = tAttrs.inputAriaLabelledby;\n        var ariaLabelValue = tAttrs.ariaLabel || tAttrs.mdPlaceholder;\n        var ngModelOptions = tAttrs.ngModelOptions;\n\n        var calendarButton = (hiddenIcons === 'all' || hiddenIcons === 'calendar') ? '' :\n          '<md-button class=\"md-datepicker-button md-icon-button\" type=\"button\" ' +\n              'tabindex=\"-1\" aria-hidden=\"true\" ' +\n              'ng-click=\"ctrl.openCalendarPane($event)\">' +\n            '<md-icon class=\"md-datepicker-calendar-icon\" aria-label=\"md-calendar\" ' +\n                     'md-svg-src=\"' + $$mdSvgRegistry.mdCalendar + '\"></md-icon>' +\n          '</md-button>';\n\n        var triangleButton = '';\n\n        if (hiddenIcons !== 'all' && hiddenIcons !== 'triangle') {\n          triangleButton = '' +\n            '<md-button type=\"button\" md-no-ink ' +\n              'class=\"md-datepicker-triangle-button md-icon-button\" ' +\n              'ng-click=\"ctrl.openCalendarPane($event)\" ' +\n              'aria-label=\"{{::ctrl.locale.msgOpenCalendar}}\">' +\n            '<div class=\"md-datepicker-expand-triangle\"></div>' +\n          '</md-button>';\n\n          tElement.addClass(HAS_TRIANGLE_ICON_CLASS);\n        }\n\n        return calendarButton +\n        '<div class=\"md-datepicker-input-container\" ng-class=\"{\\'md-datepicker-focused\\': ctrl.isFocused}\">' +\n          '<input ' +\n            (ariaLabelValue ? 'aria-label=\"' + ariaLabelValue + '\" ' : '') +\n            (inputAriaDescribedby ? 'aria-describedby=\"' + inputAriaDescribedby + '\" ' : '') +\n            (inputAriaLabelledby ? 'aria-labelledby=\"' + inputAriaLabelledby + '\" ' : '') +\n            'class=\"md-datepicker-input\" ' +\n            'aria-haspopup=\"dialog\" ' +\n            'ng-focus=\"ctrl.setFocused(true)\" ' +\n            'ng-blur=\"ctrl.setFocused(false)\"> ' +\n            triangleButton +\n        '</div>' +\n\n        // This pane will be detached from here and re-attached to the document body.\n        '<div class=\"md-datepicker-calendar-pane md-whiteframe-z1\" id=\"{{::ctrl.calendarPaneId}}\">' +\n          '<div class=\"md-datepicker-input-mask\">' +\n            '<div class=\"md-datepicker-input-mask-opaque\"></div>' +\n          '</div>' +\n          '<div class=\"md-datepicker-calendar\">' +\n            '<md-calendar role=\"dialog\" aria-label=\"{{::ctrl.locale.msgCalendar}}\" ' +\n                'md-current-view=\"{{::ctrl.currentView}}\" ' +\n                'md-mode=\"{{::ctrl.mode}}\" ' +\n                'md-min-date=\"ctrl.minDate\" ' +\n                'md-max-date=\"ctrl.maxDate\" ' +\n                'md-date-filter=\"ctrl.dateFilter\" ' +\n                'md-month-filter=\"ctrl.monthFilter\" ' +\n                (ngModelOptions ? 'ng-model-options=\"' + ngModelOptions + '\" ' : '') +\n                'ng-model=\"ctrl.date\" ng-if=\"ctrl.isCalendarOpen\">' +\n            '</md-calendar>' +\n          '</div>' +\n        '</div>';\n      },\n      require: ['ngModel', 'mdDatepicker', '?^mdInputContainer', '?^form'],\n      scope: {\n        minDate: '=mdMinDate',\n        maxDate: '=mdMaxDate',\n        placeholder: '@mdPlaceholder',\n        currentView: '@mdCurrentView',\n        mode: '@mdMode',\n        dateFilter: '=mdDateFilter',\n        monthFilter: '=mdMonthFilter',\n        isOpen: '=?mdIsOpen',\n        debounceInterval: '=mdDebounceInterval',\n        dateLocale: '=mdDateLocale'\n      },\n      controller: DatePickerCtrl,\n      controllerAs: 'ctrl',\n      bindToController: true,\n      link: function(scope, element, attr, controllers) {\n        var ngModelCtrl = controllers[0];\n        var mdDatePickerCtrl = controllers[1];\n        var mdInputContainer = controllers[2];\n        var parentForm = controllers[3];\n        var mdNoAsterisk = $mdUtil.parseAttributeBoolean(attr.mdNoAsterisk);\n\n        mdDatePickerCtrl.configureNgModel(ngModelCtrl, mdInputContainer, inputDirective);\n\n        if (mdInputContainer) {\n          // We need to move the spacer after the datepicker itself,\n          // because md-input-container adds it after the\n          // md-datepicker-input by default. The spacer gets wrapped in a\n          // div, because it floats and gets aligned next to the datepicker.\n          // There are easier ways of working around this with CSS (making the\n          // datepicker 100% wide, change the `display` etc.), however they\n          // break the alignment with any other form controls.\n          var spacer = element[0].querySelector('.md-errors-spacer');\n\n          if (spacer) {\n            element.after(angular.element('<div>').append(spacer));\n          }\n\n          mdInputContainer.setHasPlaceholder(attr.mdPlaceholder);\n          mdInputContainer.input = element;\n          mdInputContainer.element\n            .addClass(INPUT_CONTAINER_CLASS)\n            .toggleClass(HAS_CALENDAR_ICON_CLASS,\n              attr.mdHideIcons !== 'calendar' && attr.mdHideIcons !== 'all');\n\n          if (!mdInputContainer.label) {\n            $mdAria.expect(element, 'aria-label', attr.mdPlaceholder);\n          } else if (!mdNoAsterisk) {\n            attr.$observe('required', function(value) {\n              mdInputContainer.label.toggleClass('md-required', !!value);\n            });\n          }\n\n          scope.$watch(mdInputContainer.isErrorGetter || function() {\n            return ngModelCtrl.$invalid && (ngModelCtrl.$touched ||\n              (parentForm && parentForm.$submitted));\n          }, mdInputContainer.setInvalid);\n        } else if (parentForm) {\n          // If invalid, highlights the input when the parent form is submitted.\n          var parentSubmittedWatcher = scope.$watch(function() {\n            return parentForm.$submitted;\n          }, function(isSubmitted) {\n            if (isSubmitted) {\n              mdDatePickerCtrl.updateErrorState();\n              parentSubmittedWatcher();\n            }\n          });\n        }\n      }\n    };\n  }\n\n  /** Additional offset for the input's `size` attribute, which is updated based on its content. */\n  var EXTRA_INPUT_SIZE = 3;\n\n  /** Class applied to the container if the date is invalid. */\n  var INVALID_CLASS = 'md-datepicker-invalid';\n\n  /** Class applied to the datepicker when it's open. */\n  var OPEN_CLASS = 'md-datepicker-open';\n\n  /** Class applied to the md-input-container, if a datepicker is placed inside it */\n  var INPUT_CONTAINER_CLASS = '_md-datepicker-floating-label';\n\n  /** Class to be applied when the calendar icon is enabled. */\n  var HAS_CALENDAR_ICON_CLASS = '_md-datepicker-has-calendar-icon';\n\n  /** Class to be applied when the triangle icon is enabled. */\n  var HAS_TRIANGLE_ICON_CLASS = '_md-datepicker-has-triangle-icon';\n\n  /** Default time in ms to debounce input event by. */\n  var DEFAULT_DEBOUNCE_INTERVAL = 500;\n\n  /**\n   * Height of the calendar pane used to check if the pane is going outside the boundary of\n   * the viewport. See calendar.scss for how $md-calendar-height is computed; an extra 20px is\n   * also added to space the pane away from the exact edge of the screen.\n   *\n   *  This is computed statically now, but can be changed to be measured if the circumstances\n   *  of calendar sizing are changed.\n   */\n  var CALENDAR_PANE_HEIGHT = 368;\n\n  /**\n   * Width of the calendar pane used to check if the pane is going outside the boundary of\n   * the viewport. See calendar.scss for how $md-calendar-width is computed; an extra 20px is\n   * also added to space the pane away from the exact edge of the screen.\n   *\n   *  This is computed statically now, but can be changed to be measured if the circumstances\n   *  of calendar sizing are changed.\n   */\n  var CALENDAR_PANE_WIDTH = 360;\n\n  /** Used for checking whether the current user agent is on iOS or Android. */\n  var IS_MOBILE_REGEX = /ipad|iphone|ipod|android/i;\n\n  /**\n   * Controller for md-datepicker.\n   *\n   * @ngInject @constructor\n   */\n  function DatePickerCtrl($scope, $element, $attrs, $window, $mdConstant, $mdTheming, $mdUtil,\n                          $mdDateLocale, $$mdDateUtil, $$rAF, $filter, $timeout) {\n\n    /** @final */\n    this.$window = $window;\n\n    /** @final */\n    this.dateUtil = $$mdDateUtil;\n\n    /** @final */\n    this.$mdConstant = $mdConstant;\n\n    /** @final */\n    this.$mdUtil = $mdUtil;\n\n    /** @final */\n    this.$$rAF = $$rAF;\n\n    /** @final */\n    this.$mdDateLocale = $mdDateLocale;\n\n    /** @final */\n    this.$timeout = $timeout;\n\n    /**\n     * The root document element. This is used for attaching a top-level click handler to\n     * close the calendar panel when a click outside said panel occurs. We use `documentElement`\n     * instead of body because, when scrolling is disabled, some browsers consider the body element\n     * to be completely off the screen and propagate events directly to the html element.\n     * @type {!JQLite}\n     */\n    this.documentElement = angular.element(document.documentElement);\n\n    /** @type {!ngModel.NgModelController} */\n    this.ngModelCtrl = null;\n\n    /** @type {HTMLInputElement} */\n    this.inputElement = $element[0].querySelector('input');\n\n    /**\n     * @final\n     * @type {!JQLite}\n     */\n    this.ngInputElement = angular.element(this.inputElement);\n\n    /** @type {HTMLElement} */\n    this.inputContainer = $element[0].querySelector('.md-datepicker-input-container');\n\n    /** @type {HTMLElement} Floating calendar pane. */\n    this.calendarPane = $element[0].querySelector('.md-datepicker-calendar-pane');\n\n    /** @type {HTMLElement} Calendar icon button. */\n    this.calendarButton = $element[0].querySelector('.md-datepicker-button');\n\n    /**\n     * Element covering everything but the input in the top of the floating calendar pane.\n     * @type {!JQLite}\n     */\n    this.inputMask = angular.element($element[0].querySelector('.md-datepicker-input-mask-opaque'));\n\n    /**\n     * @final\n     * @type {!JQLite}\n     */\n    this.$element = $element;\n\n    /**\n     * @final\n     * @type {!angular.Attributes}\n     */\n    this.$attrs = $attrs;\n\n    /**\n     * @final\n     * @type {!angular.Scope}\n     */\n    this.$scope = $scope;\n\n    /**\n     * This holds the model that will be used by the calendar.\n     * @type {Date|null|undefined}\n     */\n    this.date = null;\n\n    /** @type {boolean} */\n    this.isFocused = false;\n\n    /** @type {boolean} */\n    this.isDisabled = undefined;\n    this.setDisabled($element[0].disabled || angular.isString($attrs.disabled));\n\n    /** @type {boolean} Whether the date-picker's calendar pane is open. */\n    this.isCalendarOpen = false;\n\n    /** @type {boolean} Whether the calendar should open when the input is focused. */\n    this.openOnFocus = $attrs.hasOwnProperty('mdOpenOnFocus');\n\n    /** @type {Object} Instance of the mdInputContainer controller */\n    this.mdInputContainer = null;\n\n    /**\n     * Element from which the calendar pane was opened. Keep track of this so that we can return\n     * focus to it when the pane is closed.\n     * @type {HTMLElement}\n     */\n    this.calendarPaneOpenedFrom = null;\n\n    /** @type {String} Unique id for the calendar pane. */\n    this.calendarPaneId = 'md-date-pane-' + $mdUtil.nextUid();\n\n    /** Pre-bound click handler is saved so that the event listener can be removed. */\n    this.bodyClickHandler = angular.bind(this, this.handleBodyClick);\n\n    /**\n     * Name of the event that will trigger a close. Necessary to sniff the browser, because\n     * the resize event doesn't make sense on mobile and can have a negative impact since it\n     * triggers whenever the browser zooms in on a focused input.\n     */\n    this.windowEventName = IS_MOBILE_REGEX.test(\n      navigator.userAgent || navigator.vendor || window.opera\n    ) ? 'orientationchange' : 'resize';\n\n    /** Pre-bound close handler so that the event listener can be removed. */\n    this.windowEventHandler = $mdUtil.debounce(angular.bind(this, this.closeCalendarPane), 100);\n\n    /** Pre-bound handler for the window blur event. Allows for it to be removed later. */\n    this.windowBlurHandler = angular.bind(this, this.handleWindowBlur);\n\n    /** The built-in AngularJS date filter. */\n    this.ngDateFilter = $filter('date');\n\n    /** @type {Number} Extra margin for the left side of the floating calendar pane. */\n    this.leftMargin = 20;\n\n    /** @type {Number} Extra margin for the top of the floating calendar. Gets determined on the first open. */\n    this.topMargin = null;\n\n    // Unless the user specifies so, the datepicker should not be a tab stop.\n    // This is necessary because ngAria might add a tabindex to anything with an ng-model\n    // (based on whether or not the user has turned that particular feature on/off).\n    if ($attrs.tabindex) {\n      this.ngInputElement.attr('tabindex', $attrs.tabindex);\n      $attrs.$set('tabindex', null);\n    } else {\n      $attrs.$set('tabindex', '-1');\n    }\n\n    $attrs.$set('aria-owns', this.calendarPaneId);\n\n    $mdTheming($element);\n    $mdTheming(angular.element(this.calendarPane));\n\n    var self = this;\n\n    $scope.$on('$destroy', function() {\n      self.detachCalendarPane();\n    });\n\n    if ($attrs.mdIsOpen) {\n      $scope.$watch('ctrl.isOpen', function(shouldBeOpen) {\n        if (shouldBeOpen) {\n          self.openCalendarPane({\n            target: self.inputElement\n          });\n        } else {\n          self.closeCalendarPane();\n        }\n      });\n    }\n\n    // For AngularJS 1.4 and older, where there are no lifecycle hooks but bindings are\n    // pre-assigned, manually call the $onInit hook.\n    if (angular.version.major === 1 && angular.version.minor <= 4) {\n      this.$onInit();\n    }\n  }\n\n  /**\n   * AngularJS Lifecycle hook for newer AngularJS versions.\n   * Bindings are not guaranteed to have been assigned in the controller, but they are in the\n   * $onInit hook.\n   */\n  DatePickerCtrl.prototype.$onInit = function() {\n\n    /**\n     * Holds locale-specific formatters, parsers, labels etc. Allows\n     * the user to override specific ones from the $mdDateLocale provider.\n     * @type {!Object}\n     */\n    this.locale = this.dateLocale ? angular.extend({}, this.$mdDateLocale, this.dateLocale)\n      : this.$mdDateLocale;\n\n    this.installPropertyInterceptors();\n    this.attachChangeListeners();\n    this.attachInteractionListeners();\n  };\n\n  /**\n   * Sets up the controller's reference to ngModelController and\n   * applies AngularJS's `input[type=\"date\"]` directive.\n   * @param {!angular.NgModelController} ngModelCtrl Instance of the ngModel controller.\n   * @param {Object} mdInputContainer Instance of the mdInputContainer controller.\n   * @param {Object} inputDirective Config for AngularJS's `input` directive.\n   */\n  DatePickerCtrl.prototype.configureNgModel = function(ngModelCtrl, mdInputContainer, inputDirective) {\n    this.ngModelCtrl = ngModelCtrl;\n    this.mdInputContainer = mdInputContainer;\n\n    // The input needs to be [type=\"date\"] in order to be picked up by AngularJS.\n    this.$attrs.$set('type', 'date');\n\n    // Invoke the `input` directive link function, adding a stub for the element.\n    // This allows us to re-use AngularJS's logic for setting the timezone via ng-model-options.\n    // It works by calling the link function directly which then adds the proper `$parsers` and\n    // `$formatters` to the ngModel controller.\n    inputDirective[0].link.pre(this.$scope, {\n      on: angular.noop,\n      val: angular.noop,\n      0: {}\n    }, this.$attrs, [ngModelCtrl]);\n\n    var self = this;\n\n    // Responds to external changes to the model value.\n    self.ngModelCtrl.$formatters.push(function(value) {\n      var parsedValue = angular.isDefined(value) ? value : null;\n\n      if (!(value instanceof Date)) {\n        parsedValue = Date.parse(value);\n\n        // `parsedValue` is the time since epoch if valid or `NaN` if invalid.\n        if (!isNaN(parsedValue) && angular.isNumber(parsedValue)) {\n          value = new Date(parsedValue);\n        }\n\n        if (value && !(value instanceof Date)) {\n          throw Error(\n            'The ng-model for md-datepicker must be a Date instance or a value ' +\n              'that can be parsed into a date. Currently the model is of type: ' + typeof value\n          );\n        }\n      }\n\n      self.onExternalChange(value);\n\n      return value;\n    });\n\n    // Responds to external error state changes (e.g. ng-required based on another input).\n    ngModelCtrl.$viewChangeListeners.unshift(angular.bind(this, this.updateErrorState));\n\n    // Forwards any events from the input to the root element. This is necessary to get `updateOn`\n    // working for events that don't bubble (e.g. 'blur') since AngularJS binds the handlers to\n    // the `<md-datepicker>`.\n    var updateOn = self.$mdUtil.getModelOption(ngModelCtrl, 'updateOn');\n\n    if (updateOn) {\n      this.ngInputElement.on(\n        updateOn,\n        angular.bind(this.$element, this.$element.triggerHandler, updateOn)\n      );\n    }\n  };\n\n  /**\n   * Attach event listeners for both the text input and the md-calendar.\n   * Events are used instead of ng-model so that updates don't infinitely update the other\n   * on a change. This should also be more performant than using a $watch.\n   */\n  DatePickerCtrl.prototype.attachChangeListeners = function() {\n    var self = this;\n\n    self.$scope.$on('md-calendar-change', function(event, date) {\n      self.setModelValue(date);\n      self.onExternalChange(date);\n      self.closeCalendarPane();\n    });\n\n    self.ngInputElement.on('input', angular.bind(self, self.resizeInputElement));\n\n    var debounceInterval = angular.isDefined(this.debounceInterval) ?\n        this.debounceInterval : DEFAULT_DEBOUNCE_INTERVAL;\n    self.ngInputElement.on('input', self.$mdUtil.debounce(self.handleInputEvent,\n        debounceInterval, self));\n  };\n\n  /** Attach event listeners for user interaction. */\n  DatePickerCtrl.prototype.attachInteractionListeners = function() {\n    var self = this;\n    var $scope = this.$scope;\n    var keyCodes = this.$mdConstant.KEY_CODE;\n\n    // Add event listener through angular so that we can triggerHandler in unit tests.\n    self.ngInputElement.on('keydown', function(event) {\n      if (event.altKey && event.keyCode === keyCodes.DOWN_ARROW) {\n        self.openCalendarPane(event);\n        $scope.$digest();\n      }\n    });\n\n    if (self.openOnFocus) {\n      self.ngInputElement.on('focus', angular.bind(self, self.openCalendarPane));\n      self.ngInputElement.on('click', function(event) {\n        event.stopPropagation();\n      });\n      self.ngInputElement.on('pointerdown',function(event) {\n        if (event.target && event.target.setPointerCapture) {\n          event.target.setPointerCapture(event.pointerId);\n        }\n      });\n\n      angular.element(self.$window).on('blur', self.windowBlurHandler);\n\n      $scope.$on('$destroy', function() {\n        angular.element(self.$window).off('blur', self.windowBlurHandler);\n      });\n    }\n\n    $scope.$on('md-calendar-close', function() {\n      self.closeCalendarPane();\n    });\n  };\n\n  /**\n   * Capture properties set to the date-picker and imperatively handle internal changes.\n   * This is done to avoid setting up additional $watches.\n   */\n  DatePickerCtrl.prototype.installPropertyInterceptors = function() {\n    var self = this;\n\n    if (this.$attrs.ngDisabled) {\n      // The expression is to be evaluated against the directive element's scope and not\n      // the directive's isolate scope.\n      var scope = this.$scope.$parent;\n\n      if (scope) {\n        scope.$watch(this.$attrs.ngDisabled, function(isDisabled) {\n          self.setDisabled(isDisabled);\n        });\n      }\n    }\n\n    Object.defineProperty(this, 'placeholder', {\n      get: function() { return self.inputElement.placeholder; },\n      set: function(value) { self.inputElement.placeholder = value || ''; }\n    });\n  };\n\n  /**\n   * Sets whether the date-picker is disabled.\n   * @param {boolean} isDisabled\n   */\n  DatePickerCtrl.prototype.setDisabled = function(isDisabled) {\n    this.isDisabled = isDisabled;\n    this.inputElement.disabled = isDisabled;\n\n    if (this.calendarButton) {\n      this.calendarButton.disabled = isDisabled;\n    }\n  };\n\n  /**\n   * Sets the custom ngModel.$error flags to be consumed by ngMessages. Flags are:\n   *   - mindate: whether the selected date is before the minimum date.\n   *   - maxdate: whether the selected flag is after the maximum date.\n   *   - filtered: whether the selected date is allowed by the custom filtering function.\n   *   - valid: whether the entered text input is a valid date\n   *\n   * The 'required' flag is handled automatically by ngModel.\n   *\n   * @param {Date=} opt_date Date to check. If not given, defaults to the datepicker's model value.\n   */\n  DatePickerCtrl.prototype.updateErrorState = function(opt_date) {\n    var date;\n    if (opt_date) {\n      date = new Date(opt_date.valueOf());\n    } else {\n      if (angular.isString(this.ngModelCtrl.$modelValue)) {\n        date = new Date(this.ngModelCtrl.$modelValue);\n      } else {\n        date = angular.copy(this.ngModelCtrl.$modelValue);\n      }\n    }\n\n    // Clear any existing errors to get rid of anything that's no longer relevant.\n    this.clearErrorState();\n\n    if (this.dateUtil.isValidDate(date)) {\n      // Force all dates to midnight in order to ignore the time portion.\n      date = this.dateUtil.createDateAtMidnight(date);\n\n      if (this.dateUtil.isValidDate(this.minDate)) {\n        var minDate = this.dateUtil.createDateAtMidnight(this.minDate);\n        this.ngModelCtrl.$setValidity('mindate', date >= minDate);\n      }\n\n      if (this.dateUtil.isValidDate(this.maxDate)) {\n        var maxDate = this.dateUtil.createDateAtMidnight(this.maxDate);\n        this.ngModelCtrl.$setValidity('maxdate', date <= maxDate);\n      }\n\n      if (angular.isFunction(this.dateFilter)) {\n        this.ngModelCtrl.$setValidity('filtered', this.dateFilter(date));\n      }\n\n      if (angular.isFunction(this.monthFilter)) {\n        this.ngModelCtrl.$setValidity('filtered', this.monthFilter(date));\n      }\n    } else {\n      // The date is seen as \"not a valid date\" if there is *something* set\n      // (i.e.., not null or undefined), but that something isn't a valid date.\n      this.ngModelCtrl.$setValidity('valid', date == null);\n    }\n\n    var input = this.inputElement.value;\n    var parsedDate = this.locale.parseDate(input);\n\n    if (!this.isInputValid(input, parsedDate) && this.ngModelCtrl.$valid) {\n      this.ngModelCtrl.$setValidity('valid', date == null);\n    }\n\n    angular.element(this.inputContainer).toggleClass(INVALID_CLASS,\n      this.ngModelCtrl.$invalid && (this.ngModelCtrl.$touched || this.ngModelCtrl.$submitted));\n  };\n\n  /**\n   * Check to see if the input is valid, as the validation should fail if the model is invalid.\n   *\n   * @param {string} inputString\n   * @param {Date} parsedDate\n   * @return {boolean} Whether the input is valid\n   */\n  DatePickerCtrl.prototype.isInputValid = function (inputString, parsedDate) {\n    return inputString === '' || (\n      this.dateUtil.isValidDate(parsedDate) &&\n      this.locale.isDateComplete(inputString) &&\n      this.isDateEnabled(parsedDate)\n    );\n  };\n\n  /** Clears any error flags set by `updateErrorState`. */\n  DatePickerCtrl.prototype.clearErrorState = function() {\n    this.inputContainer.classList.remove(INVALID_CLASS);\n    ['mindate', 'maxdate', 'filtered', 'valid'].forEach(function(field) {\n      this.ngModelCtrl.$setValidity(field, true);\n    }, this);\n  };\n\n  /** Resizes the input element based on the size of its content. */\n  DatePickerCtrl.prototype.resizeInputElement = function() {\n    this.inputElement.size = this.inputElement.value.length + EXTRA_INPUT_SIZE;\n  };\n\n  /**\n   * Sets the model value if the user input is a valid date.\n   * Adds an invalid class to the input element if not.\n   */\n  DatePickerCtrl.prototype.handleInputEvent = function() {\n    var inputString = this.inputElement.value;\n    var parsedDate = inputString ? this.locale.parseDate(inputString) : null;\n    this.dateUtil.setDateTimeToMidnight(parsedDate);\n\n    // An input string is valid if it is either empty (representing no date)\n    // or if it parses to a valid date that the user is allowed to select.\n    var isValidInput = this.isInputValid(inputString, parsedDate);\n\n    // The datepicker's model is only updated when there is a valid input.\n    if (isValidInput) {\n      this.setModelValue(parsedDate);\n      this.date = parsedDate;\n    }\n\n    this.updateErrorState(parsedDate);\n  };\n\n  /**\n   * Check whether date is in range and enabled\n   * @param {Date=} opt_date\n   * @return {boolean} Whether the date is enabled.\n   */\n  DatePickerCtrl.prototype.isDateEnabled = function(opt_date) {\n    return this.dateUtil.isDateWithinRange(opt_date, this.minDate, this.maxDate) &&\n          (!angular.isFunction(this.dateFilter) || this.dateFilter(opt_date)) &&\n          (!angular.isFunction(this.monthFilter) || this.monthFilter(opt_date));\n  };\n\n  /** Position and attach the floating calendar to the document. */\n  DatePickerCtrl.prototype.attachCalendarPane = function() {\n    var calendarPane = this.calendarPane;\n    var body = document.body;\n\n    calendarPane.style.transform = '';\n    this.$element.addClass(OPEN_CLASS);\n    this.mdInputContainer && this.mdInputContainer.element.addClass(OPEN_CLASS);\n    angular.element(body).addClass('md-datepicker-is-showing');\n\n    var elementRect = this.inputContainer.getBoundingClientRect();\n    var bodyRect = body.getBoundingClientRect();\n\n    if (!this.topMargin || this.topMargin < 0) {\n      this.topMargin =\n        (this.inputMask.parent().prop('clientHeight')\n          - this.ngInputElement.prop('clientHeight')) / 2;\n    }\n\n    // Check to see if the calendar pane would go off the screen. If so, adjust position\n    // accordingly to keep it within the viewport.\n    var paneTop = elementRect.top - bodyRect.top - this.topMargin;\n    var paneLeft = elementRect.left - bodyRect.left - this.leftMargin;\n\n    // If ng-material has disabled body scrolling (for example, if a dialog is open),\n    // then it's possible that the already-scrolled body has a negative top/left. In this case,\n    // we want to treat the \"real\" top as (0 - bodyRect.top). In a normal scrolling situation,\n    // though, the top of the viewport should just be the body's scroll position.\n    var viewportTop = (bodyRect.top < 0 && document.body.scrollTop === 0) ?\n        -bodyRect.top :\n        document.body.scrollTop;\n\n    var viewportLeft = (bodyRect.left < 0 && document.body.scrollLeft === 0) ?\n        -bodyRect.left :\n        document.body.scrollLeft;\n\n    var viewportBottom = viewportTop + this.$window.innerHeight;\n    var viewportRight = viewportLeft + this.$window.innerWidth;\n\n    // Creates an overlay with a hole the same size as element. We remove a pixel or two\n    // on each end to make it overlap slightly. The overlay's background is added in\n    // the theme in the form of a box-shadow with a huge spread.\n    this.inputMask.css({\n      position: 'absolute',\n      left: this.leftMargin + 'px',\n      top: this.topMargin + 'px',\n      width: (elementRect.width - 1) + 'px',\n      height: (elementRect.height - 2) + 'px'\n    });\n\n    // If the right edge of the pane would be off the screen and shifting it left by the\n    // difference would not go past the left edge of the screen. If the calendar pane is too\n    // big to fit on the screen at all, move it to the left of the screen and scale the entire\n    // element down to fit.\n    if (paneLeft + CALENDAR_PANE_WIDTH > viewportRight) {\n      if (viewportRight - CALENDAR_PANE_WIDTH > 0) {\n        paneLeft = viewportRight - CALENDAR_PANE_WIDTH;\n      } else {\n        paneLeft = viewportLeft;\n        var scale = this.$window.innerWidth / CALENDAR_PANE_WIDTH;\n        calendarPane.style.transform = 'scale(' + scale + ')';\n      }\n\n      calendarPane.classList.add('md-datepicker-pos-adjusted');\n    }\n\n    // If the bottom edge of the pane would be off the screen and shifting it up by the\n    // difference would not go past the top edge of the screen.\n    if (paneTop + CALENDAR_PANE_HEIGHT > viewportBottom &&\n        viewportBottom - CALENDAR_PANE_HEIGHT > viewportTop) {\n      paneTop = viewportBottom - CALENDAR_PANE_HEIGHT;\n      calendarPane.classList.add('md-datepicker-pos-adjusted');\n    }\n\n    calendarPane.style.left = paneLeft + 'px';\n    calendarPane.style.top = paneTop + 'px';\n    document.body.appendChild(calendarPane);\n\n    // Add CSS class after one frame to trigger open animation.\n    this.$$rAF(function() {\n      calendarPane.classList.add('md-pane-open');\n    });\n  };\n\n  /** Detach the floating calendar pane from the document. */\n  DatePickerCtrl.prototype.detachCalendarPane = function() {\n    this.$element.removeClass(OPEN_CLASS);\n    this.mdInputContainer && this.mdInputContainer.element.removeClass(OPEN_CLASS);\n    angular.element(document.body).removeClass('md-datepicker-is-showing');\n    this.calendarPane.classList.remove('md-pane-open');\n    this.calendarPane.classList.remove('md-datepicker-pos-adjusted');\n\n    if (this.isCalendarOpen) {\n      this.$mdUtil.enableScrolling();\n    }\n\n    if (this.calendarPane.parentNode) {\n      // Use native DOM removal because we do not want any of the\n      // angular state of this element to be disposed.\n      this.calendarPane.parentNode.removeChild(this.calendarPane);\n    }\n  };\n\n  /**\n   * Open the floating calendar pane.\n   * @param {MouseEvent|KeyboardEvent|{target: HTMLInputElement}} event\n   */\n  DatePickerCtrl.prototype.openCalendarPane = function(event) {\n    if (!this.isCalendarOpen && !this.isDisabled && !this.inputFocusedOnWindowBlur) {\n      this.isCalendarOpen = this.isOpen = true;\n      this.calendarPaneOpenedFrom = event.target;\n\n      // Because the calendar pane is attached directly to the body, it is possible that the\n      // rest of the component (input, etc) is in a different scrolling container, such as\n      // an md-content. This means that, if the container is scrolled, the pane would remain\n      // stationary. To remedy this, we disable scrolling while the calendar pane is open, which\n      // also matches the native behavior for things like `<select>` on Mac and Windows.\n      this.$mdUtil.disableScrollAround(this.calendarPane);\n\n      this.attachCalendarPane();\n      this.focusCalendar();\n      this.evalAttr('ngFocus');\n\n      // Attach click listener inside of a timeout because, if this open call was triggered by a\n      // click, we don't want it to be immediately propagated up to the body and handled.\n      var self = this;\n      this.$mdUtil.nextTick(function() {\n        // Use 'touchstart` in addition to click in order to work on iOS Safari, where click\n        // events aren't propagated under most circumstances.\n        // See http://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html\n        self.documentElement.on('click touchstart', self.bodyClickHandler);\n      }, false);\n\n      window.addEventListener(this.windowEventName, this.windowEventHandler);\n    } else if (this.inputFocusedOnWindowBlur) {\n      this.resetInputFocused();\n    }\n  };\n\n  /** Close the floating calendar pane. */\n  DatePickerCtrl.prototype.closeCalendarPane = function() {\n    if (this.isCalendarOpen) {\n      var self = this;\n\n      self.detachCalendarPane();\n      self.ngModelCtrl.$setTouched();\n      self.evalAttr('ngBlur');\n\n      self.documentElement.off('click touchstart', self.bodyClickHandler);\n      window.removeEventListener(self.windowEventName, self.windowEventHandler);\n\n      self.calendarPaneOpenedFrom.focus();\n      self.calendarPaneOpenedFrom = null;\n\n      if (self.openOnFocus) {\n        // Ensures that all focus events have fired before resetting\n        // the calendar. Prevents the calendar from reopening immediately\n        // in IE when md-open-on-focus is set. Also it needs to trigger\n        // a digest, in order to prevent issues where the calendar wasn't\n        // showing up on the next open.\n        self.$timeout(reset);\n      } else {\n        reset();\n      }\n    }\n\n    function reset() {\n      self.isCalendarOpen = self.isOpen = false;\n    }\n  };\n\n  /** Gets the controller instance for the calendar in the floating pane. */\n  DatePickerCtrl.prototype.getCalendarCtrl = function() {\n    return angular.element(this.calendarPane.querySelector('md-calendar')).controller('mdCalendar');\n  };\n\n  /** Focus the calendar in the floating pane. */\n  DatePickerCtrl.prototype.focusCalendar = function() {\n    // Use a timeout in order to allow the calendar to be rendered, as it is gated behind an ng-if.\n    var self = this;\n    this.$mdUtil.nextTick(function() {\n      self.getCalendarCtrl().focusDate(self.date);\n    }, false);\n  };\n\n  /**\n   * Sets whether the input is currently focused.\n   * @param {boolean} isFocused\n   */\n  DatePickerCtrl.prototype.setFocused = function(isFocused) {\n    if (!isFocused) {\n      this.ngModelCtrl.$setTouched();\n    }\n\n    // The ng* expressions shouldn't be evaluated when mdOpenOnFocus is on,\n    // because they also get called when the calendar is opened/closed.\n    if (!this.openOnFocus) {\n      this.evalAttr(isFocused ? 'ngFocus' : 'ngBlur');\n    }\n\n    this.isFocused = isFocused;\n  };\n\n  /**\n   * Handles a click on the document body when the floating calendar pane is open.\n   * Closes the floating calendar pane if the click is not inside of it.\n   * @param {MouseEvent} event\n   */\n  DatePickerCtrl.prototype.handleBodyClick = function(event) {\n    if (this.isCalendarOpen) {\n      var isInCalendar = this.$mdUtil.getClosest(event.target, 'md-calendar');\n\n      if (!isInCalendar) {\n        this.closeCalendarPane();\n      }\n\n      this.$scope.$digest();\n    }\n  };\n\n  /**\n   * Handles the event when the user navigates away from the current tab. Keeps track of\n   * whether the input was focused when the event happened, in order to prevent the calendar\n   * from re-opening.\n   */\n  DatePickerCtrl.prototype.handleWindowBlur = function() {\n    this.inputFocusedOnWindowBlur = document.activeElement === this.inputElement;\n  };\n\n  /**\n   * Reset the flag inputFocusedOnWindowBlur to default state, to permit user to open calendar\n   * again when he back to tab with calendar focused.\n   */\n  DatePickerCtrl.prototype.resetInputFocused = function() {\n    this.inputFocusedOnWindowBlur = false;\n  };\n\n  /**\n   * Evaluates an attribute expression against the parent scope.\n   * @param {String} attr Name of the attribute to be evaluated.\n   */\n  DatePickerCtrl.prototype.evalAttr = function(attr) {\n    if (this.$attrs[attr]) {\n      this.$scope.$parent.$eval(this.$attrs[attr]);\n    }\n  };\n\n  /**\n   * Sets the ng-model value by first converting the date object into a string. Converting it\n   * is necessary, in order to pass AngularJS's `input[type=\"date\"]` validations. AngularJS turns\n   * the value into a Date object afterwards, before setting it on the model.\n   * @param {Date=} value Date to be set as the model value.\n   */\n  DatePickerCtrl.prototype.setModelValue = function(value) {\n    var timezone = this.$mdUtil.getModelOption(this.ngModelCtrl, 'timezone');\n    // Using the timezone when the offset is negative (GMT+X) causes the previous day to be\n    // set as the model value here. This check avoids that.\n    if (timezone == null || value == null || value.getTimezoneOffset() < 0) {\n      this.ngModelCtrl.$setViewValue(this.ngDateFilter(value, 'yyyy-MM-dd'), 'default');\n    } else {\n      this.ngModelCtrl.$setViewValue(this.ngDateFilter(value, 'yyyy-MM-dd', timezone), 'default');\n    }\n  };\n\n  /**\n   * Updates the datepicker when a model change occurred externally.\n   * @param {Date=} value Value that was set to the model.\n   */\n  DatePickerCtrl.prototype.onExternalChange = function(value) {\n    var self = this;\n    var timezone = this.$mdUtil.getModelOption(this.ngModelCtrl, 'timezone');\n\n    // Update the model used by the calendar.\n    if (this.dateUtil.isValidDate(value) && timezone != null && value.getTimezoneOffset() >= 0) {\n      this.date = this.dateUtil.removeLocalTzAndReparseDate(value);\n    } else {\n      this.date = value;\n    }\n    // Using the timezone when the offset is negative (GMT+X) causes the previous day to be\n    // used here. This check avoids that.\n    if (timezone == null || value == null || value.getTimezoneOffset() < 0) {\n      this.inputElement.value = this.locale.formatDate(value);\n    } else {\n      this.inputElement.value = this.locale.formatDate(value, timezone);\n    }\n    this.mdInputContainer && this.mdInputContainer.setHasValue(!!value);\n    this.resizeInputElement();\n    // This is often called from the $formatters section of the $validators pipeline.\n    // In that case, we need to delay to let $render and $validate run, so that the checks for\n    // error state are accurate.\n    this.$mdUtil.nextTick(function() {self.updateErrorState();}, false, self.$scope);\n  };\n})();\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.dialog\n */\nMdDialogDirective.$inject = [\"$$rAF\", \"$mdTheming\", \"$mdDialog\"];\nMdDialogProvider.$inject = [\"$$interimElementProvider\"];\nangular\n  .module('material.components.dialog', [\n    'material.core',\n    'material.components.backdrop'\n  ])\n  .directive('mdDialog', MdDialogDirective)\n  .provider('$mdDialog', MdDialogProvider);\n\n/**\n * @ngdoc directive\n * @name mdDialog\n * @module material.components.dialog\n *\n * @restrict E\n *\n * @description\n * `<md-dialog>` - The dialog's template must be inside this element.\n *\n * Inside, use an `<md-dialog-content>` element for the dialog's content, and use\n * an `<md-dialog-actions>` element for the dialog's actions.\n *\n * ## CSS\n * - `.md-dialog-content` - class that sets the padding on the content as the spec file\n *\n * ## Notes\n * - If you specify an `id` for the `<md-dialog>`, the `<md-dialog-content>` will have the same `id`\n * prefixed with `dialogContent_`.\n *\n * @usage\n * ### Dialog template\n * <hljs lang=\"html\">\n * <md-dialog aria-label=\"List dialog\">\n *   <md-dialog-content>\n *     <md-list>\n *       <md-list-item ng-repeat=\"item in items\">\n *         <p>Number {{item}}</p>\n *       </md-list-item>\n *     </md-list>\n *   </md-dialog-content>\n *   <md-dialog-actions>\n *     <md-button ng-click=\"closeDialog()\" class=\"md-primary\">Close Dialog</md-button>\n *   </md-dialog-actions>\n * </md-dialog>\n * </hljs>\n */\nfunction MdDialogDirective($$rAF, $mdTheming, $mdDialog) {\n  return {\n    restrict: 'E',\n    link: function(scope, element) {\n      element.addClass('_md');     // private md component indicator for styling\n\n      $mdTheming(element);\n      $$rAF(function() {\n        var images;\n        var content = element[0].querySelector('md-dialog-content');\n\n        if (content) {\n          images = content.getElementsByTagName('img');\n          addOverflowClass();\n          // delayed image loading may impact scroll height, check after images are loaded\n          angular.element(images).on('load', addOverflowClass);\n        }\n\n        scope.$on('$destroy', function() {\n          $mdDialog.destroy(element);\n        });\n\n        /**\n         *\n         */\n        function addOverflowClass() {\n          element.toggleClass('md-content-overflow', content.scrollHeight > content.clientHeight);\n        }\n\n\n      });\n    }\n  };\n}\n\n/**\n * @ngdoc service\n * @name $mdDialog\n * @module material.components.dialog\n *\n * @description\n * `$mdDialog` opens a dialog over the app to inform users about critical information or require\n *  them to make decisions. There are two approaches for setup: a simple promise API\n *  and regular object syntax.\n *\n * ## Restrictions\n *\n * - The dialog is always given an isolate scope.\n * - The dialog's template must have an outer `<md-dialog>` element.\n *   Inside, use an `<md-dialog-content>` element for the dialog's content, and use\n *   an `<md-dialog-actions>` element for the dialog's actions.\n * - Dialogs must cover the entire application to keep interactions inside of them.\n * Use the `parent` option to change where dialogs are appended.\n *\n * ## Sizing\n * - Complex dialogs can be sized with `flex=\"percentage\"`, i.e. `flex=\"66\"`.\n * - Default max-width is 80% of the `rootElement` or `parent`.\n *\n * ## CSS\n * - `.md-dialog-content` - class that sets the padding on the content as the spec file\n *\n * @usage\n * <hljs lang=\"html\">\n * <div ng-app=\"demoApp\" ng-controller=\"AppController as ctrl\">\n *   <div>\n *     <md-button ng-click=\"ctrl.showAlert()\" class=\"md-raised md-warn\">\n *       Basic Alert!\n *       </md-button>\n *   </div>\n *   <div>\n *     <md-button ng-click=\"ctrl.showDialog($event)\" class=\"md-raised\">\n *       Custom Dialog\n *       </md-button>\n *   </div>\n * </div>\n * </hljs>\n *\n * ### JavaScript: object syntax\n * <hljs lang=\"js\">\n * (function(angular, undefined) {\n *   \"use strict\";\n *\n *   angular\n *    .module('demoApp', ['ngMaterial'])\n *    .controller('AppCtrl', AppController);\n *\n *   function AppController($mdDialog) {\n *     var alert;\n *     var ctrl = this;\n *     ctrl.showAlert = showAlert;\n *     ctrl.showDialog = showDialog;\n *     ctrl.items = [1, 2, 3];\n *\n *     // Internal method\n *     function showAlert() {\n *       alert = $mdDialog.alert({\n *         title: 'Attention',\n *         textContent: 'This is an example of how simple dialogs can be!',\n *         ok: 'Close'\n *       });\n *\n *       $mdDialog\n *         .show( alert )\n *         .finally(function() {\n *           alert = undefined;\n *         });\n *     }\n *\n *     function showDialog($event) {\n *        var parentEl = angular.element(document.body);\n *        $mdDialog.show({\n *          parent: parentEl,\n *          targetEvent: $event,\n *          template:\n *            '<md-dialog aria-label=\"List dialog\">' +\n *            '  <md-dialog-content>'+\n *            '    <md-list>'+\n *            '      <md-list-item ng-repeat=\"item in ctrl.items\">'+\n *            '       <p>Number {{item}}</p>' +\n *            '      </md-item>'+\n *            '    </md-list>'+\n *            '  </md-dialog-content>' +\n *            '  <md-dialog-actions>' +\n *            '    <md-button ng-click=\"ctrl.closeDialog()\" class=\"md-primary\">' +\n *            '      Close Dialog' +\n *            '    </md-button>' +\n *            '  </md-dialog-actions>' +\n *            '</md-dialog>',\n *          locals: {\n *            items: ctrl.items\n *          },\n *          controller: DialogController\n *          controllerAs: 'ctrl'\n *       });\n *       function DialogController($mdDialog) {\n *         this.closeDialog = function() {\n *           $mdDialog.hide();\n *         }\n *       }\n *     }\n *   }\n * })(angular);\n * </hljs>\n *\n * ### Multiple Dialogs\n * Using the `multiple` option for the `$mdDialog` service allows developers to show multiple\n * dialogs at the same time.\n *\n * <hljs lang=\"js\">\n *   // From plain options\n *   $mdDialog.show({\n *     multiple: true\n *   });\n *\n *   // From a dialog preset\n *   $mdDialog.show(\n *     $mdDialog\n *       .alert()\n *       .multiple(true)\n *   );\n *\n * </hljs>\n *\n * ### Pre-Rendered Dialogs\n * By using the `contentElement` option, it is possible to use an already existing element in the\n * DOM.\n *\n * > Pre-rendered dialogs will be not linked to any scope and will not instantiate any new\n * > controller.<br/>\n * > You can manually link the elements to a scope or instantiate a controller from the template\n * > (using `ng-controller`).\n *\n * <hljs lang=\"js\">\n *   function showPrerenderedDialog() {\n *     $mdDialog.show({\n *       contentElement: '#myStaticDialog',\n *       parent: angular.element(document.body)\n *     });\n *   }\n * </hljs>\n *\n * When using a string as value, `$mdDialog` will automatically query the DOM for the specified CSS\n * selector.\n *\n * <hljs lang=\"html\">\n *   <div style=\"visibility: hidden\">\n *     <div class=\"md-dialog-container\" id=\"myStaticDialog\">\n *       <md-dialog>\n *         This is a pre-rendered dialog.\n *       </md-dialog>\n *     </div>\n *   </div>\n * </hljs>\n *\n * **Notice**: It is important, to use the `.md-dialog-container` as the content element, otherwise\n * the dialog will not show up.\n *\n * It also possible to use a DOM element for the `contentElement` option.\n * - `contentElement: document.querySelector('#myStaticDialog')`\n * - `contentElement: angular.element(TEMPLATE)`\n *\n * When using a `template` as content element, it will be not compiled upon open.\n * This allows you to compile the element yourself and use it each time the dialog opens.\n *\n * ### Custom Presets\n * Developers are also able to create their own preset, which can be used without repeating\n * their options each time.\n *\n * <hljs lang=\"js\">\n *   $mdDialogProvider.addPreset('testPreset', {\n *     options: function() {\n *       return {\n *         template:\n *           '<md-dialog>' +\n *             'This is a custom preset' +\n *           '</md-dialog>',\n *         controllerAs: 'dialog',\n *         bindToController: true,\n *         clickOutsideToClose: true,\n *         escapeToClose: true\n *       };\n *     }\n *   });\n * </hljs>\n *\n * After creating your preset in the `config` phase, you can access it.\n *\n * <hljs lang=\"js\">\n *   $mdDialog.show(\n *     $mdDialog.testPreset()\n *   );\n * </hljs>\n *\n * ### JavaScript: promise API syntax, custom dialog template\n *\n * <hljs lang=\"js\">\n * (function(angular, undefined) {\n *   \"use strict\";\n *\n *   angular\n *     .module('demoApp', ['ngMaterial'])\n *     .controller('EmployeeController', EmployeeController)\n *     .controller('GreetingController', GreetingController);\n *\n *   // Fictitious Employee Editor to show how to use simple and complex dialogs.\n *\n *   function EmployeeController($mdDialog) {\n *     var alert;\n *     var ctrl = this;\n *\n *     ctrl.showAlert = showAlert;\n *     ctrl.showGreeting = showCustomGreeting;\n *\n *     ctrl.hasAlert = function() { return !!alert };\n *     ctrl.userName = ctrl.userName || 'Bobby';\n *\n *     // Dialog #1 - Show simple alert dialog and cache reference to dialog instance\n *\n *     function showAlert() {\n *       alert = $mdDialog.alert()\n *         .title('Attention, ' + ctrl.userName)\n *         .textContent('This is an example of how simple dialogs can be!')\n *         .ok('Close');\n *\n *       $mdDialog\n *         .show(alert)\n *         .finally(function() {\n *           alert = undefined;\n *         });\n *     }\n *\n *     // Dialog #2 - Demonstrate more complex dialogs construction and popup.\n *\n *     function showCustomGreeting($event) {\n *       $mdDialog.show({\n *         targetEvent: $event,\n *         template:\n *           '<md-dialog>' +\n *           '  <md-dialog-content>Hello {{ ctrl.employee }}!</md-dialog-content>' +\n *           '  <md-dialog-actions>' +\n *           '    <md-button ng-click=\"ctrl.closeDialog()\" class=\"md-primary\">' +\n *           '      Close Greeting' +\n *           '    </md-button>' +\n *           '  </md-dialog-actions>' +\n *           '</md-dialog>',\n *         controller: GreetingController,\n *         controllerAs: 'ctrl',\n *         onComplete: afterShowAnimation,\n *         locals: { employee: ctrl.userName }\n *       });\n *\n *       // When the 'enter' animation finishes...\n *       function afterShowAnimation(scope, element, options) {\n *         // post-show code here: DOM element focus, etc.\n *       }\n *     }\n *   }\n *\n *   // Greeting controller used with the 'showCustomGreeting()' custom dialog\n *   function GreetingController($mdDialog, $log) {\n *     var ctrl = this;\n *     this.$log = $log;\n *\n *     ctrl.closeDialog = function() {\n *       // Hides the most recent dialog shown.\n *       // No specific dialog instance reference is needed.\n *       $mdDialog.hide();\n *     };\n *   }\n *\n *   GreetingController.prototype.$onInit = function() {\n *     // Assigned from the locals options passed to $mdDialog.show.\n *     this.$log.log('Employee Name: ', ctrl.employee);\n *   };\n *\n * })(angular);\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name $mdDialog#alert\n *\n * @description\n * Builds a preconfigured dialog with the specified message.\n *\n * @returns {Object} a dialog preset with the chainable configuration methods:\n *\n * - `title(string)` - Sets the alert title.\n * - `textContent(string)` - Sets the alert message.\n * - `htmlContent(string)` - Sets the alert message as HTML. Requires the `ngSanitize`\n *     module to be loaded. HTML is not run through AngularJS' compiler.\n * - `ok(string)` - Sets the alert \"Okay\" button text.\n * - `theme(string)` - Sets the theme of the alert dialog.\n * - `targetEvent(DOMClickEvent=)` - A click's event object. When passed in as an\n *     option, the location of the click will be used as the starting point for the opening\n *     animation of the the dialog.\n */\n\n/**\n * @ngdoc method\n * @name $mdDialog#confirm\n *\n * @description\n * Builds a preconfigured dialog with the specified message. You can call show and the promise\n * returned will be resolved if the user clicks the confirm action on the dialog. The promise will\n * be rejected if the user clicks the cancel action or dismisses the dialog.\n *\n * @returns {Object} a dialog preset with the chainable configuration methods:\n *\n * Additionally, it supports the following methods:\n *\n * - `title(string)` - Sets the confirm title.\n * - `textContent(string)` - Sets the confirm message.\n * - `htmlContent(string)` - Sets the confirm message as HTML. Requires the `ngSanitize`\n *     module to be loaded. HTML is not run through AngularJS' compiler.\n * - `ok(string)` - Sets the confirm \"Okay\" button text.\n * - `cancel(string)` - Sets the confirm \"Cancel\" button text.\n * - `theme(string)` - Sets the theme of the confirm dialog.\n * - `targetEvent(DOMClickEvent=)` - A click's event object. When passed in as an\n *     option, the location of the click will be used as the starting point for the opening\n *     animation of the the dialog.\n */\n\n/**\n * @ngdoc method\n * @name $mdDialog#prompt\n *\n * @description\n * Builds a preconfigured dialog with the specified message and input box. You can call show and the\n * promise returned will be resolved, if the user clicks the prompt action on the dialog, passing\n * the input value as the first argument. The promise will be rejected if the user clicks the cancel\n * action or dismisses the dialog.\n *\n * @returns {Object} a dialog preset with the chainable configuration methods:\n *\n * Additionally, it supports the following methods:\n *\n * - `title(string)` - Sets the prompt title.\n * - `textContent(string)` - Sets the prompt message.\n * - `htmlContent(string)` - Sets the prompt message as HTML. Requires the `ngSanitize`\n *     module to be loaded. HTML is not run through AngularJS' compiler.\n * - `placeholder(string)` - Sets the placeholder text for the input.\n * - `required(boolean)` - Sets the input required value.\n * - `initialValue(string)` - Sets the initial value for the prompt input.\n * - `ok(string)` - Sets the prompt \"Okay\" button text.\n * - `cancel(string)` - Sets the prompt \"Cancel\" button text.\n * - `theme(string)` - Sets the theme of the prompt dialog.\n * - `targetEvent(DOMClickEvent=)` - A click's event object. When passed in as an\n *     option, the location of the click will be used as the starting point for the opening\n *     animation of the the dialog.\n */\n\n/**\n * @ngdoc method\n * @name $mdDialog#show\n *\n * @description\n * Show a dialog with the specified options.\n *\n * @param {Object} optionsOrPreset Either provide a dialog preset returned from `alert()`,\n * `prompt()`, or `confirm()`; or an options object with the following properties:\n *   - `templateUrl` - `{string=}`: The url of a template that will be used as the content\n *      of the dialog.\n *   - `template` - `{string=}`: HTML template to show in the dialog. This **must** be trusted HTML\n *      with respect to AngularJS' [$sce service](https://docs.angularjs.org/api/ng/service/$sce).\n *      This template should **never** be constructed with any kind of user input or user data.\n *   - `contentElement` - `{string|Element}`: Instead of using a template, which will be compiled\n *      each time a dialog opens, you can also use a DOM element.<br/>\n *     * When specifying an element, which is present on the DOM, `$mdDialog` will temporary fetch\n *     the element into the dialog and restores it at the old DOM position upon close.\n *     * When specifying a string, the string be used as a CSS selector, to lookup for the element\n *     in the DOM.\n *   - `autoWrap` - `{boolean=}`: Whether or not to automatically wrap the template with a\n *     `<md-dialog>` tag if one is not provided. Defaults to true. Can be disabled if you provide a\n *     custom dialog directive.\n *   - `targetEvent` - `{DOMClickEvent=}`: A click's event object. When passed in as an option,\n *     the location of the click will be used as the starting point for the opening animation\n *     of the the dialog.\n *   - `openFrom` - `{string|Element|Object}`: The query selector, DOM element or the Rect object\n *     that is used to determine the bounds (top, left, height, width) from which the Dialog will\n *     originate.\n *   - `closeTo` - `{string|Element|Object}`: The query selector, DOM element or the Rect object\n *     that is used to determine the bounds (top, left, height, width) to which the Dialog will\n *     target.\n *   - `scope` - `{Object=}`: the scope to link the template / controller to. If none is specified,\n *     it will create a new isolate scope.\n *     This scope will be destroyed when the dialog is removed unless `preserveScope` is set to\n *     true.\n *   - `preserveScope` - `{boolean=}`: whether to preserve the scope when the element is removed.\n *     Default is false\n *   - `disableParentScroll` - `{boolean=}`: Whether to disable scrolling while the dialog is open.\n *     Default true.\n *   - `hasBackdrop` - `{boolean=}`: Whether there should be an opaque backdrop behind the dialog.\n *     Default true.\n *   - `clickOutsideToClose` - `{boolean=}`: Whether the user can click outside the dialog to\n *     close it. Default false.\n *   - `escapeToClose` - `{boolean=}`: Whether the user can press escape to close the dialog.\n *     Default true.\n *   - `focusOnOpen` - `{boolean=}`: An option to override focus behavior on open. Only disable if\n *     focusing some other way, as focus management is required for dialogs to be accessible.\n *     Defaults to true.\n *   - `controller` - `{Function|string=}`: The controller to associate with the dialog. The\n *     controller will be injected with the local `$mdDialog`, which passes along a scope for the\n *     dialog.\n *   - `locals` - `{Object=}`: An object containing key/value pairs. The keys will be used as names\n *     of values to inject into the controller. For example, `locals: {three: 3}` would inject\n *     `three` into the controller, with the value 3. If `bindToController` is true, they will be\n *     copied to the controller instead.\n *   - `bindToController` - `bool`: bind the locals to the controller, instead of passing them in.\n *   - `resolve` - `{Function=}`: Similar to locals, except it takes as values functions that return\n *     promises, and the dialog will not open until all of the promises resolve.\n *   - `controllerAs` - `{string=}`: An alias to assign the controller to on the scope.\n *   - `parent` - `{element=}`: The element to append the dialog to. Defaults to appending\n *     to the root element of the application.\n *   - `onShowing` - `Function(scope, element, options: Object=, controller: Object)=`: Callback\n *     function used to notify the show() animation is starting.\n *   - `onComplete` - `Function(scope, element, options: Object=)=`: Callback function used to\n *     notify when the show() animation is finished.\n *   - `onRemoving` - `Function(element, removePromise)`: Callback function used to announce the\n *      close/hide() action is starting. This allows developers to run custom animations\n *      in parallel with the close animations.\n *   - `fullscreen` `{boolean=}`: An option to toggle whether the dialog should show in fullscreen\n *      or not. Defaults to `false`.\n *   - `multiple` `{boolean=}`: An option to allow this dialog to display over one that's currently\n *     open.\n * @returns {Promise} A promise that can be resolved with `$mdDialog.hide()` or\n * rejected with `$mdDialog.cancel()`.\n */\n\n/**\n * @ngdoc method\n * @name $mdDialog#hide\n *\n * @description\n * Hide an existing dialog and resolve the promise returned from `$mdDialog.show()`.\n *\n * @param {*=} response An argument for the resolved promise.\n *\n * @returns {promise} A promise that is resolved when the dialog has been closed.\n */\n\n/**\n * @ngdoc method\n * @name $mdDialog#cancel\n *\n * @description\n * Hide an existing dialog and reject the promise returned from `$mdDialog.show()`.\n *\n * @param {*=} response An argument for the rejected promise.\n *\n * @returns {promise} A promise that is resolved when the dialog has been closed.\n */\n\nfunction MdDialogProvider($$interimElementProvider) {\n  // Elements to capture and redirect focus when the user presses tab at the dialog boundary.\n  MdDialogController.$inject = [\"$mdDialog\", \"$mdConstant\"];\n  dialogDefaultOptions.$inject = [\"$mdDialog\", \"$mdAria\", \"$mdUtil\", \"$mdConstant\", \"$animate\", \"$document\", \"$window\", \"$rootElement\", \"$log\", \"$injector\", \"$mdTheming\", \"$interpolate\", \"$mdInteraction\"];\n  var topFocusTrap, bottomFocusTrap;\n  var removeFocusTrap;\n\n  return $$interimElementProvider('$mdDialog')\n    .setDefaults({\n      methods: ['disableParentScroll', 'hasBackdrop', 'clickOutsideToClose', 'escapeToClose',\n          'targetEvent', 'closeTo', 'openFrom', 'parent', 'fullscreen', 'multiple'],\n      options: dialogDefaultOptions\n    })\n    .addPreset('alert', {\n      methods: ['title', 'htmlContent', 'textContent', 'ariaLabel', 'ok', 'theme',\n          'css'],\n      options: advancedDialogOptions\n    })\n    .addPreset('confirm', {\n      methods: ['title', 'htmlContent', 'textContent', 'ariaLabel', 'ok', 'cancel',\n          'theme', 'css'],\n      options: advancedDialogOptions\n    })\n    .addPreset('prompt', {\n      methods: ['title', 'htmlContent', 'textContent', 'initialValue', 'placeholder', 'ariaLabel',\n          'ok', 'cancel', 'theme', 'css', 'required'],\n      options: advancedDialogOptions\n    });\n\n  /* @ngInject */\n  function advancedDialogOptions() {\n    return {\n      template: [\n        '<md-dialog md-theme=\"{{ dialog.theme || dialog.defaultTheme }}\" aria-label=\"{{ dialog.ariaLabel }}\" ng-class=\"dialog.css\">',\n        '  <md-dialog-content class=\"md-dialog-content\" role=\"document\" tabIndex=\"-1\">',\n        '    <h2 class=\"md-title\">{{ dialog.title }}</h2>',\n        '    <div ng-if=\"::dialog.mdHtmlContent\" class=\"md-dialog-content-body\" ',\n        '        ng-bind-html=\"::dialog.mdHtmlContent\"></div>',\n        '    <div ng-if=\"::!dialog.mdHtmlContent\" class=\"md-dialog-content-body\">',\n        '      <p>{{::dialog.mdTextContent}}</p>',\n        '    </div>',\n        '    <md-input-container md-no-float ng-if=\"::dialog.$type == \\'prompt\\'\" class=\"md-prompt-input-container\">',\n        '      <input ng-keypress=\"dialog.keypress($event)\" md-autofocus ng-model=\"dialog.result\" ' +\n        '             placeholder=\"{{::dialog.placeholder}}\" ng-required=\"dialog.required\">',\n        '    </md-input-container>',\n        '  </md-dialog-content>',\n        '  <md-dialog-actions>',\n        '    <md-button ng-if=\"dialog.$type === \\'confirm\\' || dialog.$type === \\'prompt\\'\"' +\n        '               ng-click=\"dialog.abort()\" class=\"md-primary md-cancel-button\">',\n        '      {{ dialog.cancel }}',\n        '    </md-button>',\n        '    <md-button ng-click=\"dialog.hide()\" class=\"md-primary md-confirm-button\" md-autofocus=\"dialog.$type===\\'alert\\'\"' +\n        '               ng-disabled=\"dialog.required && !dialog.result\">',\n        '      {{ dialog.ok }}',\n        '    </md-button>',\n        '  </md-dialog-actions>',\n        '</md-dialog>'\n      ].join('').replace(/\\s\\s+/g, ''),\n      controller: MdDialogController,\n      controllerAs: 'dialog',\n      bindToController: true,\n    };\n  }\n\n  /**\n   * Controller for the md-dialog interim elements\n   * @ngInject\n   */\n  function MdDialogController($mdDialog, $mdConstant) {\n    // For compatibility with AngularJS 1.6+, we should always use the $onInit hook in\n    // interimElements. The $mdCompiler simulates the $onInit hook for all versions.\n    this.$onInit = function() {\n      var isPrompt = this.$type === 'prompt';\n\n      if (isPrompt && this.initialValue) {\n        this.result = this.initialValue;\n      }\n\n      this.hide = function() {\n        $mdDialog.hide(isPrompt ? this.result : true);\n      };\n      this.abort = function() {\n        $mdDialog.cancel();\n      };\n      this.keypress = function($event) {\n        var invalidPrompt = isPrompt && this.required && !angular.isDefined(this.result);\n\n        if ($event.keyCode === $mdConstant.KEY_CODE.ENTER && !invalidPrompt) {\n          $mdDialog.hide(this.result);\n        }\n      };\n    };\n  }\n\n  /* @ngInject */\n  function dialogDefaultOptions($mdDialog, $mdAria, $mdUtil, $mdConstant, $animate, $document,\n                                $window, $rootElement, $log, $injector, $mdTheming, $interpolate,\n                                $mdInteraction) {\n    return {\n      hasBackdrop: true,\n      isolateScope: true,\n      onCompiling: beforeCompile,\n      onShow: onShow,\n      onShowing: beforeShow,\n      onRemove: onRemove,\n      clickOutsideToClose: false,\n      escapeToClose: true,\n      targetEvent: null,\n      closeTo: null,\n      openFrom: null,\n      focusOnOpen: true,\n      disableParentScroll: true,\n      autoWrap: true,\n      fullscreen: false,\n      transformTemplate: function(template, options) {\n        // Make the dialog container focusable, because otherwise the focus will be always\n        // redirected to an element outside of the container, and the focus trap won't work.\n        // Also the tabindex is needed for the `escapeToClose` functionality, because\n        // the keyDown event can't be triggered when the focus is outside of the container.\n        var startSymbol = $interpolate.startSymbol();\n        var endSymbol = $interpolate.endSymbol();\n        var theme = startSymbol + (options.themeWatch ? '' : '::') + 'theme' + endSymbol;\n        var themeAttr = (options.hasTheme) ? 'md-theme=\"'+theme+'\"': '';\n        return '<div class=\"md-dialog-container\" tabindex=\"-1\" ' + themeAttr + '>' + validatedTemplate(template) + '</div>';\n\n        /**\n         * The specified template should contain a <md-dialog> wrapper element....\n         */\n        function validatedTemplate(template) {\n          if (options.autoWrap && !/<\\/md-dialog>/g.test(template)) {\n            return '<md-dialog>' + (template || '') + '</md-dialog>';\n          } else {\n            return template || '';\n          }\n        }\n      }\n    };\n\n    function beforeCompile(options) {\n      // Automatically apply the theme, if the user didn't specify a theme explicitly.\n      // Those option changes need to be done, before the compilation has started, because otherwise\n      // the option changes will be not available in the $mdCompilers locales.\n      options.defaultTheme = $mdTheming.defaultTheme();\n\n      detectTheming(options);\n    }\n\n    function beforeShow(scope, element, options, controller) {\n\n      if (controller) {\n        var mdHtmlContent = controller.htmlContent || options.htmlContent || '';\n        var mdTextContent = controller.textContent || options.textContent || '';\n\n        if (mdHtmlContent && !$injector.has('$sanitize')) {\n          throw Error('The ngSanitize module must be loaded in order to use htmlContent.');\n        }\n\n        if (mdHtmlContent && mdTextContent) {\n          throw Error('md-dialog cannot have both `htmlContent` and `textContent`');\n        }\n\n        // Only assign the content if nothing throws, otherwise it'll still be compiled.\n        controller.mdHtmlContent = mdHtmlContent;\n        controller.mdTextContent = mdTextContent;\n      }\n    }\n\n    /** Show method for dialogs */\n    function onShow(scope, element, options) {\n      angular.element($document[0].body).addClass('md-dialog-is-showing');\n\n      var dialogElement = element.find('md-dialog');\n\n      // Once a dialog has `ng-cloak` applied on his template the dialog animation will not work\n      // properly. This is a very common problem, so we have to notify the developer about this.\n      if (dialogElement.hasClass('ng-cloak')) {\n        var message =\n          '$mdDialog: using `<md-dialog ng-cloak>` will affect the dialog opening animations.';\n        $log.warn(message, element[0]);\n      }\n\n      captureParentAndFromToElements(options);\n      configureAria(dialogElement, options);\n      showBackdrop(scope, element, options);\n      activateListeners(element, options);\n\n      return dialogPopIn(element, options)\n        .then(function() {\n          lockScreenReader(element, options);\n          focusOnOpen();\n        });\n\n      /**\n       * For alerts, focus on content... otherwise focus on the close button (or equivalent)\n       */\n      function focusOnOpen() {\n        if (options.focusOnOpen) {\n          var target = $mdUtil.findFocusTarget(element) || findCloseButton() || dialogElement;\n          target.focus();\n        }\n\n        /**\n         * If no element with class dialog-close, try to find the last\n         * button child in md-dialog-actions and assume it is a close button.\n         *\n         * If we find no actions at all, log a warning to the console.\n         */\n        function findCloseButton() {\n          return element[0].querySelector('.dialog-close, md-dialog-actions button:last-child');\n        }\n      }\n    }\n\n    /**\n     * Remove function for all dialogs\n     */\n    function onRemove(scope, element, options) {\n      options.deactivateListeners();\n      options.unlockScreenReader();\n      options.hideBackdrop(options.$destroy);\n\n      // Remove the focus traps that we added earlier for keeping focus within the dialog.\n      if (removeFocusTrap) {\n        removeFocusTrap();\n        removeFocusTrap = null;\n      }\n\n      // For navigation $destroy events, do a quick, non-animated removal,\n      // but for normal closes (from clicks, etc) animate the removal\n      return options.$destroy ? detachAndClean() : animateRemoval().then(detachAndClean);\n\n      /**\n       * For normal closes, animate the removal.\n       * For forced closes (like $destroy events), skip the animations\n       */\n      function animateRemoval() {\n        return dialogPopOut(element, options);\n      }\n\n      /**\n       * Detach the element\n       */\n      function detachAndClean() {\n        angular.element($document[0].body).removeClass('md-dialog-is-showing');\n\n        // Reverse the container stretch if using a content element.\n        if (options.contentElement) {\n          options.reverseContainerStretch();\n        }\n\n        // Exposed cleanup function from the $mdCompiler.\n        options.cleanupElement();\n\n        // Restores the focus to the origin element if the last interaction upon opening was a keyboard.\n        if (!options.$destroy && options.originInteraction === 'keyboard') {\n          options.origin.focus();\n        }\n      }\n    }\n\n    function detectTheming(options) {\n      // Once the user specifies a targetEvent, we will automatically try to find the correct\n      // nested theme.\n      var targetEl;\n      if (options.targetEvent && options.targetEvent.target) {\n        targetEl = angular.element(options.targetEvent.target);\n      }\n\n      var themeCtrl = targetEl && targetEl.controller('mdTheme');\n\n      options.hasTheme = (!!themeCtrl);\n\n      if (!options.hasTheme) {\n        return;\n      }\n\n      options.themeWatch = themeCtrl.$shouldWatch;\n\n      var theme = options.theme || themeCtrl.$mdTheme;\n\n      if (theme) {\n        options.scope.theme = theme;\n      }\n\n      var unwatch = themeCtrl.registerChanges(function (newTheme) {\n        options.scope.theme = newTheme;\n\n        if (!options.themeWatch) {\n          unwatch();\n        }\n      });\n    }\n\n    /**\n     * Capture originator/trigger/from/to element information (if available)\n     * and the parent container for the dialog; defaults to the $rootElement\n     * unless overridden in the options.parent\n     */\n    function captureParentAndFromToElements(options) {\n          options.origin = angular.extend({\n            element: null,\n            bounds: null,\n            focus: angular.noop\n          }, options.origin || {});\n\n          options.parent   = getDomElement(options.parent, $rootElement);\n          options.closeTo  = getBoundingClientRect(getDomElement(options.closeTo));\n          options.openFrom = getBoundingClientRect(getDomElement(options.openFrom));\n\n          if (options.targetEvent) {\n            options.origin = getBoundingClientRect(options.targetEvent.target, options.origin);\n            options.originInteraction = $mdInteraction.getLastInteractionType();\n          }\n\n\n          /**\n           * Identify the bounding RECT for the target element\n           *\n           */\n          function getBoundingClientRect (element, orig) {\n            var source = angular.element((element || {}));\n            if (source && source.length) {\n              // Compute and save the target element's bounding rect, so that if the\n              // element is hidden when the dialog closes, we can shrink the dialog\n              // back to the same position it expanded from.\n              //\n              // Checking if the source is a rect object or a DOM element\n              var bounds = {top:0,left:0,height:0,width:0};\n              var hasFn = angular.isFunction(source[0].getBoundingClientRect);\n\n              return angular.extend(orig || {}, {\n                  element : hasFn ? source : undefined,\n                  bounds  : hasFn ? source[0].getBoundingClientRect() : angular.extend({}, bounds, source[0]),\n                  focus   : angular.bind(source, source.focus),\n              });\n            }\n          }\n\n          /**\n           * If the specifier is a simple string selector, then query for\n           * the DOM element.\n           */\n          function getDomElement(element, defaultElement) {\n            if (angular.isString(element)) {\n              element = $document[0].querySelector(element);\n            }\n\n            // If we have a reference to a raw dom element, always wrap it in jqLite\n            return angular.element(element || defaultElement);\n          }\n\n        }\n\n    /**\n     * Listen for escape keys and outside clicks to auto close\n     */\n    function activateListeners(element, options) {\n      var window = angular.element($window);\n      var onWindowResize = $mdUtil.debounce(function() {\n        stretchDialogContainerToViewport(element, options);\n      }, 60);\n\n      var removeListeners = [];\n      var smartClose = function() {\n        // Only 'confirm' dialogs have a cancel button... escape/clickOutside will\n        // cancel or fallback to hide.\n        var closeFn = (options.$type === 'alert') ? $mdDialog.hide : $mdDialog.cancel;\n        $mdUtil.nextTick(closeFn, true);\n      };\n\n      if (options.escapeToClose) {\n        var parentTarget = options.parent;\n        var keyHandlerFn = function(ev) {\n          if (ev.keyCode === $mdConstant.KEY_CODE.ESCAPE) {\n            ev.stopImmediatePropagation();\n            ev.preventDefault();\n\n            smartClose();\n          }\n        };\n\n        // Add keydown listeners\n        element.on('keydown', keyHandlerFn);\n        parentTarget.on('keydown', keyHandlerFn);\n\n        // Queue remove listeners function\n        removeListeners.push(function() {\n          element.off('keydown', keyHandlerFn);\n          parentTarget.off('keydown', keyHandlerFn);\n        });\n      }\n\n      // Register listener to update dialog on window resize\n      window.on('resize', onWindowResize);\n\n      removeListeners.push(function() {\n        window.off('resize', onWindowResize);\n      });\n\n      if (options.clickOutsideToClose) {\n        var target = element;\n        var sourceElem;\n\n        // Keep track of the element on which the mouse originally went down\n        // so that we can only close the backdrop when the 'click' started on it.\n        // A simple 'click' handler does not work,\n        // it sets the target object as the element the mouse went down on.\n        var mousedownHandler = function(ev) {\n          sourceElem = ev.target;\n        };\n\n        // We check if our original element and the target is the backdrop\n        // because if the original was the backdrop and the target was inside the dialog\n        // we don't want to dialog to close.\n        var mouseupHandler = function(ev) {\n          if (sourceElem === target[0] && ev.target === target[0]) {\n            ev.stopPropagation();\n            ev.preventDefault();\n\n            smartClose();\n          }\n        };\n\n        // Add listeners\n        target.on('mousedown', mousedownHandler);\n        target.on('mouseup', mouseupHandler);\n\n        // Queue remove listeners function\n        removeListeners.push(function() {\n          target.off('mousedown', mousedownHandler);\n          target.off('mouseup', mouseupHandler);\n        });\n      }\n\n      // Attach specific `remove` listener handler\n      options.deactivateListeners = function() {\n        removeListeners.forEach(function(removeFn) {\n          removeFn();\n        });\n        options.deactivateListeners = null;\n      };\n    }\n\n    /**\n     * Show modal backdrop element...\n     */\n    function showBackdrop(scope, element, options) {\n\n      if (options.disableParentScroll) {\n        // !! DO this before creating the backdrop; since disableScrollAround()\n        //    configures the scroll offset; which is used by mdBackDrop postLink()\n        options.restoreScroll = $mdUtil.disableScrollAround(element, options.parent);\n      }\n\n      if (options.hasBackdrop) {\n        options.backdrop = $mdUtil.createBackdrop(scope, \"md-dialog-backdrop md-opaque\");\n        $animate.enter(options.backdrop, options.parent);\n      }\n\n      /**\n       * Hide modal backdrop element...\n       */\n      options.hideBackdrop = function hideBackdrop($destroy) {\n        if (options.backdrop) {\n          if ($destroy) {\n            options.backdrop.remove();\n          } else {\n            $animate.leave(options.backdrop);\n          }\n        }\n\n        if (options.disableParentScroll) {\n          options.restoreScroll && options.restoreScroll();\n          delete options.restoreScroll;\n        }\n\n        options.hideBackdrop = null;\n      };\n    }\n\n    /**\n     * Inject ARIA-specific attributes appropriate for Dialogs\n     */\n    function configureAria(element, options) {\n\n      var role = (options.$type === 'alert') ? 'alertdialog' : 'dialog';\n      var dialogContent = element.find('md-dialog-content');\n      var existingDialogId = element.attr('id');\n      var dialogContentId = 'dialogContent_' + (existingDialogId || $mdUtil.nextUid());\n\n      element.attr({\n        'role': role,\n        'tabIndex': '-1'\n      });\n\n      if (dialogContent.length === 0) {\n        dialogContent = element;\n        // If the dialog element already had an ID, don't clobber it.\n        if (existingDialogId) {\n          dialogContentId = existingDialogId;\n        }\n      }\n\n      dialogContent.attr('id', dialogContentId);\n      element.attr('aria-describedby', dialogContentId);\n\n      if (options.ariaLabel) {\n        $mdAria.expect(element, 'aria-label', options.ariaLabel);\n      }\n      else {\n        $mdAria.expectAsync(element, 'aria-label', function() {\n          // If dialog title is specified, set aria-label with it\n          // See https://github.com/angular/material/issues/10582\n          if (options.title) {\n            return options.title;\n          } else {\n            var words = dialogContent.text().split(/\\s+/);\n            if (words.length > 3) words = words.slice(0, 3).concat('...');\n            return words.join(' ');\n          }\n        });\n      }\n\n      // Set up elements before and after the dialog content to capture focus and\n      // redirect back into the dialog.\n      topFocusTrap = document.createElement('div');\n      topFocusTrap.classList.add('md-dialog-focus-trap');\n      topFocusTrap.tabIndex = 0;\n\n      bottomFocusTrap = topFocusTrap.cloneNode(false);\n\n      /**\n       * When focus is about to move out of the end of the dialog, we intercept it and redirect it\n       * back to the md-dialog element.\n       * When focus is about to move out of the start of the dialog, we intercept it and redirect it\n       * back to the last focusable element in the md-dialog.\n       * @param {FocusEvent} event\n       */\n      var focusHandler = function(event) {\n        if (event.target && event.target.nextSibling &&\n            event.target.nextSibling.nodeName === 'MD-DIALOG') {\n          var lastFocusableElement = $mdUtil.getLastTabbableElement(element[0]);\n          if (angular.isElement(lastFocusableElement)) {\n            lastFocusableElement.focus();\n          }\n        } else {\n          element.focus();\n        }\n      };\n\n      topFocusTrap.addEventListener('focus', focusHandler);\n      bottomFocusTrap.addEventListener('focus', focusHandler);\n\n      removeFocusTrap = function () {\n        topFocusTrap.removeEventListener('focus', focusHandler);\n        bottomFocusTrap.removeEventListener('focus', focusHandler);\n\n        if (topFocusTrap && topFocusTrap.parentNode) {\n          topFocusTrap.parentNode.removeChild(topFocusTrap);\n        }\n\n        if (bottomFocusTrap && bottomFocusTrap.parentNode) {\n          bottomFocusTrap.parentNode.removeChild(bottomFocusTrap);\n        }\n      };\n\n      // The top focus trap inserted immediately before the md-dialog element (as a sibling).\n      // The bottom focus trap is inserted immediately after the md-dialog element (as a sibling).\n      element[0].parentNode.insertBefore(topFocusTrap, element[0]);\n      element.after(bottomFocusTrap);\n    }\n\n    /**\n     * Prevents screen reader interaction behind modal window on swipe interfaces.\n     */\n    function lockScreenReader(element, options) {\n      var isHidden = true;\n\n      // get raw DOM node\n      walkDOM(element[0]);\n\n      options.unlockScreenReader = function () {\n        isHidden = false;\n        walkDOM(element[0]);\n\n        options.unlockScreenReader = null;\n      };\n\n      /**\n       * Get all of an element's parent elements up the DOM tree.\n       * @param {Node & ParentNode} element the element to start from\n       * @return {Element[]} The parent elements\n       */\n      function getParents(element) {\n        var parents = [];\n        while (element.parentNode) {\n          if (element === document.body) {\n            return parents;\n          }\n          var children = element.parentNode.children;\n          for (var i = 0; i < children.length; i++) {\n            // skip over child if it is an ascendant of the dialog\n            // a script or style tag, or a live region.\n            if (element !== children[i] &&\n                !isNodeOneOf(children[i], ['SCRIPT', 'STYLE']) &&\n                !children[i].hasAttribute('aria-live')) {\n              parents.push(children[i]);\n            }\n          }\n          element = element.parentNode;\n        }\n        return parents;\n      }\n\n      /**\n       * Walk DOM to apply or remove aria-hidden on sibling nodes and parent sibling nodes.\n       * @param {Element} element the element to start from when walking up the DOM\n       * @returns {void}\n       */\n      function walkDOM(element) {\n        var elements = getParents(element);\n        for (var i = 0; i < elements.length; i++) {\n          elements[i].setAttribute('aria-hidden', isHidden);\n        }\n      }\n    }\n\n    /**\n     * Ensure the dialog container fill-stretches to the viewport.\n     * @param {JQLite} container dialog container\n     * @param {Object} options\n     * @returns {function(): void} function that reverts the modified styles\n     */\n    function stretchDialogContainerToViewport(container, options) {\n      var isFixed = $window.getComputedStyle($document[0].body).position === 'fixed';\n      var backdrop = options.backdrop ? $window.getComputedStyle(options.backdrop[0]) : null;\n      var height = backdrop ?\n        Math.min($document[0].body.clientHeight, Math.ceil(Math.abs(parseInt(backdrop.height, 10))))\n        : 0;\n\n      var previousStyles = {\n        top: container.css('top'),\n        height: container.css('height')\n      };\n\n      // If the body is fixed, determine the distance to the viewport in relative from the parent.\n      var parentTop = Math.abs(options.parent[0].getBoundingClientRect().top);\n\n      container.css({\n        top: (isFixed ? parentTop : 0) + 'px',\n        height: height ? height + 'px' : '100%'\n      });\n\n      return function() {\n        // Reverts the modified styles back to the previous values.\n        // This is needed for contentElements, which should have the same styles after close\n        // as before.\n        container.css(previousStyles);\n      };\n    }\n\n    /**\n     * Dialog open and pop-in animation.\n     * @param {JQLite} container dialog container\n     * @param {Object} options\n     * @returns {*}\n     */\n    function dialogPopIn(container, options) {\n      // Add the `md-dialog-container` to the DOM\n      options.parent.append(container);\n      options.reverseContainerStretch = stretchDialogContainerToViewport(container, options);\n\n      var dialogEl = container.find('md-dialog');\n      var animator = $mdUtil.dom.animator;\n      var buildTranslateToOrigin = animator.calculateZoomToOrigin;\n      var translateOptions = {transitionInClass: 'md-transition-in', transitionOutClass: 'md-transition-out'};\n      var from = animator.toTransformCss(buildTranslateToOrigin(dialogEl, options.openFrom || options.origin));\n      var to = animator.toTransformCss(\"\");  // defaults to center display (or parent or $rootElement)\n\n      dialogEl.toggleClass('md-dialog-fullscreen', !!options.fullscreen);\n\n      return animator\n        .translate3d(dialogEl, from, to, translateOptions)\n        .then(function(animateReversal) {\n\n          // Build a reversal translate function synced to this translation...\n          options.reverseAnimate = function() {\n            delete options.reverseAnimate;\n\n            if (options.closeTo) {\n              // Using the opposite classes to create a close animation to the closeTo element\n              translateOptions = {transitionInClass: 'md-transition-out', transitionOutClass: 'md-transition-in'};\n              from = to;\n              to = animator.toTransformCss(buildTranslateToOrigin(dialogEl, options.closeTo));\n\n              return animator\n                .translate3d(dialogEl, from, to,translateOptions);\n            }\n\n            return animateReversal(\n              to = animator.toTransformCss(\n                // in case the origin element has moved or is hidden,\n                // let's recalculate the translateCSS\n                buildTranslateToOrigin(dialogEl, options.origin)\n              )\n            );\n          };\n\n          // Function to revert the generated animation styles on the dialog element.\n          // Useful when using a contentElement instead of a template.\n          options.clearAnimate = function() {\n            delete options.clearAnimate;\n\n            // Remove the transition classes, added from $animateCSS, since those can't be removed\n            // by reversely running the animator.\n            dialogEl.removeClass([\n              translateOptions.transitionOutClass,\n              translateOptions.transitionInClass\n            ].join(' '));\n\n            // Run the animation reversely to remove the previous added animation styles.\n            return animator.translate3d(dialogEl, to, animator.toTransformCss(''), {});\n          };\n\n          return true;\n        });\n    }\n\n    /**\n     * Dialog close and pop-out animation.\n     * @param {JQLite} container dialog container\n     * @param {Object} options\n     * @returns {*}\n     */\n    function dialogPopOut(container, options) {\n      return options.reverseAnimate().then(function() {\n        if (options.contentElement) {\n          // When we use a contentElement, we want the element to be the same as before.\n          // That means, that we have to clear all the animation properties, like transform.\n          options.clearAnimate();\n        }\n      });\n    }\n\n    /**\n     * Utility function to filter out raw DOM nodes.\n     * @param {Node} elem\n     * @param {string[]} nodeTypeArray\n     * @returns {boolean}\n     */\n    function isNodeOneOf(elem, nodeTypeArray) {\n      return nodeTypeArray.indexOf(elem.nodeName) !== -1;\n    }\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.divider\n * @description Divider module!\n */\nMdDividerDirective.$inject = [\"$mdTheming\"];\nangular.module('material.components.divider', [\n  'material.core'\n])\n  .directive('mdDivider', MdDividerDirective);\n\n/**\n * @ngdoc directive\n * @name mdDivider\n * @module material.components.divider\n * @restrict E\n *\n * @description\n * Dividers group and separate content within lists and page layouts using strong visual and spatial distinctions. This divider is a thin rule, lightweight enough to not distract the user from content.\n *\n * @param {boolean=} md-inset Add this attribute to activate the inset divider style.\n * @usage\n * <hljs lang=\"html\">\n * <md-divider></md-divider>\n *\n * <md-divider md-inset></md-divider>\n * </hljs>\n *\n */\nfunction MdDividerDirective($mdTheming) {\n  return {\n    restrict: 'E',\n    link: $mdTheming\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  /**\n   * @ngdoc module\n   * @name material.components.fabActions\n   */\n  MdFabActionsDirective.$inject = [\"$mdUtil\"];\n  angular\n    .module('material.components.fabActions', ['material.core'])\n    .directive('mdFabActions', MdFabActionsDirective);\n\n  /**\n   * @ngdoc directive\n   * @name mdFabActions\n   * @module material.components.fabActions\n   *\n   * @restrict E\n   *\n   * @description\n   * The `<md-fab-actions>` directive is used inside of a `<md-fab-speed-dial>` or\n   * `<md-fab-toolbar>` directive to mark an element (or elements) as the actions and setup the\n   * proper event listeners.\n   *\n   * @usage\n   * See the `<md-fab-speed-dial>` or `<md-fab-toolbar>` directives for example usage.\n   */\n  function MdFabActionsDirective($mdUtil) {\n    return {\n      restrict: 'E',\n\n      require: ['^?mdFabSpeedDial', '^?mdFabToolbar'],\n\n      compile: function(element, attributes) {\n        var children = element.children();\n        var actionItemButtons;\n        var hasNgRepeat = $mdUtil.prefixer().hasAttribute(children, 'ng-repeat');\n\n        // Action item buttons should not be in the tab order when the speed dial is closed.\n        actionItemButtons = element.find('md-button');\n        angular.forEach(actionItemButtons, function(button) {\n          button.setAttribute('tabindex', -1);\n        });\n\n        // Support both ng-repeat and static content\n        if (hasNgRepeat) {\n          children.addClass('md-fab-action-item');\n        } else {\n          // Wrap every child in a new div and add a class that we can scale/fling independently\n          children.wrap('<div class=\"md-fab-action-item\">');\n        }\n      }\n    };\n  }\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  MdFabController.$inject = [\"$scope\", \"$element\", \"$animate\", \"$mdUtil\", \"$mdConstant\", \"$timeout\"];\n  angular.module('material.components.fabShared', ['material.core'])\n    .controller('MdFabController', MdFabController);\n\n  function MdFabController($scope, $element, $animate, $mdUtil, $mdConstant, $timeout) {\n    var ctrl = this;\n    var initialAnimationAttempts = 0;\n\n    // NOTE: We use async eval(s) below to avoid conflicts with any existing digest loops\n\n    ctrl.open = function() {\n      $scope.$evalAsync(\"ctrl.isOpen = true\");\n    };\n\n    ctrl.close = function() {\n      // Async eval to avoid conflicts with existing digest loops\n      $scope.$evalAsync(\"ctrl.isOpen = false\");\n\n      // Focus the trigger when the element closes so users can still tab to the next item\n      $element.find('md-fab-trigger')[0].focus();\n    };\n\n    // Toggle the open/close state when the trigger is clicked\n    ctrl.toggle = function() {\n      $scope.$evalAsync(\"ctrl.isOpen = !ctrl.isOpen\");\n    };\n\n    /*\n     * AngularJS Lifecycle hook for newer AngularJS versions.\n     * Bindings are not guaranteed to have been assigned in the controller, but they are in the\n     * $onInit hook.\n     */\n    ctrl.$onInit = function() {\n      setupDefaults();\n      setupListeners();\n      setupWatchers();\n\n      fireInitialAnimations();\n    };\n\n    // For AngularJS 1.4 and older, where there are no lifecycle hooks but bindings are pre-assigned,\n    // manually call the $onInit hook.\n    if (angular.version.major === 1 && angular.version.minor <= 4) {\n      this.$onInit();\n    }\n\n    function setupDefaults() {\n      // Set the default direction to 'down' if none is specified\n      ctrl.direction = ctrl.direction || 'down';\n\n      // Set the default to be closed\n      ctrl.isOpen = ctrl.isOpen || false;\n\n      // Start the keyboard interaction at the first action\n      resetActionIndex();\n\n      // Add an animations waiting class so we know not to run\n      $element.addClass('md-animations-waiting');\n    }\n\n    function setupListeners() {\n      var eventTypes = [\n        'click', 'focusin', 'focusout'\n      ];\n\n      // Add our listeners\n      angular.forEach(eventTypes, function(eventType) {\n        $element.on(eventType, parseEvents);\n      });\n\n      // Remove our listeners when destroyed\n      $scope.$on('$destroy', function() {\n        angular.forEach(eventTypes, function(eventType) {\n          $element.off(eventType, parseEvents);\n        });\n\n        // remove any attached keyboard handlers in case element is removed while\n        // speed dial is open\n        disableKeyboard();\n      });\n    }\n\n    var closeTimeout;\n\n    /**\n     * @param {MouseEvent} event\n     */\n    function parseEvents(event) {\n      // If the event is a click, just handle it\n      if (event.type == 'click') {\n        handleItemClick(event);\n      }\n\n      // If we focusout, set a timeout to close the element\n      if (event.type == 'focusout' && !closeTimeout) {\n        closeTimeout = $timeout(function() {\n          ctrl.close();\n        }, 100, false);\n      }\n\n      // If we see a focusin and there is a timeout about to run, cancel it so we stay open\n      if (event.type == 'focusin' && closeTimeout) {\n        $timeout.cancel(closeTimeout);\n        closeTimeout = null;\n      }\n    }\n\n    function resetActionIndex() {\n      ctrl.currentActionIndex = -1;\n    }\n\n    function setupWatchers() {\n      // Watch for changes to the direction and update classes/attributes\n      $scope.$watch('ctrl.direction', function(newDir, oldDir) {\n        // Add the appropriate classes so we can target the direction in the CSS\n        $animate.removeClass($element, 'md-' + oldDir);\n        $animate.addClass($element, 'md-' + newDir);\n\n        // Reset the action index since it may have changed\n        resetActionIndex();\n      });\n\n      var trigger, actions;\n\n      // Watch for changes to md-open\n      $scope.$watch('ctrl.isOpen', function(isOpen) {\n        // Reset the action index since it may have changed\n        resetActionIndex();\n\n        // We can't get the trigger/actions outside of the watch because the component hasn't been\n        // linked yet, so we wait until the first watch fires to cache them.\n        if (!trigger || !actions) {\n          trigger = getTriggerElement();\n          actions = getActionsElement();\n        }\n\n        if (isOpen) {\n          enableKeyboard();\n        } else {\n          disableKeyboard();\n        }\n\n        var toAdd = isOpen ? 'md-is-open' : '';\n        var toRemove = isOpen ? '' : 'md-is-open';\n\n        // Set the proper ARIA attributes\n        trigger.attr('aria-haspopup', true);\n        trigger.attr('aria-expanded', isOpen);\n        actions.attr('aria-hidden', !isOpen);\n\n        // Animate the CSS classes\n        $animate.setClass($element, toAdd, toRemove);\n      });\n    }\n\n    function fireInitialAnimations() {\n      // If the element is actually visible on the screen\n      if ($element[0].scrollHeight > 0) {\n        // Fire our animation\n        $animate.addClass($element, '_md-animations-ready').then(function() {\n          // Remove the waiting class\n          $element.removeClass('md-animations-waiting');\n        });\n      }\n\n      // Otherwise, try for up to 1 second before giving up\n      else if (initialAnimationAttempts < 10) {\n        $timeout(fireInitialAnimations, 100);\n\n        // Increment our counter\n        initialAnimationAttempts = initialAnimationAttempts + 1;\n      }\n    }\n\n    function enableKeyboard() {\n      $element.on('keydown', keyPressed);\n\n      // On the next tick, setup a check for outside clicks; we do this on the next tick to avoid\n      // clicks/touches that result in the isOpen attribute changing (e.g. a bound radio button)\n      $mdUtil.nextTick(function() {\n        angular.element(document).on('click touchend', checkForOutsideClick);\n      });\n    }\n\n    function disableKeyboard() {\n      $element.off('keydown', keyPressed);\n      angular.element(document).off('click touchend', checkForOutsideClick);\n    }\n\n    function checkForOutsideClick(event) {\n      if (event.target) {\n        var closestTrigger = $mdUtil.getClosest(event.target, 'md-fab-trigger');\n        var closestActions = $mdUtil.getClosest(event.target, 'md-fab-actions');\n\n        if (!closestTrigger && !closestActions) {\n          ctrl.close();\n        }\n      }\n    }\n\n    /**\n     * @param {KeyboardEvent} event\n     * @returns {boolean}\n     */\n    function keyPressed(event) {\n      switch (event.which) {\n        case $mdConstant.KEY_CODE.ESCAPE: ctrl.close(); event.preventDefault(); return false;\n        case $mdConstant.KEY_CODE.LEFT_ARROW: doKeyLeft(event); return false;\n        case $mdConstant.KEY_CODE.UP_ARROW: doKeyUp(event); return false;\n        case $mdConstant.KEY_CODE.RIGHT_ARROW: doKeyRight(event); return false;\n        case $mdConstant.KEY_CODE.DOWN_ARROW: doKeyDown(event); return false;\n        case $mdConstant.KEY_CODE.TAB: doShift(event); return false;\n      }\n    }\n\n    function doActionPrev(event) {\n      focusAction(event, -1);\n    }\n\n    function doActionNext(event) {\n      focusAction(event, 1);\n    }\n\n    function focusAction(event, direction) {\n      var actions = getActionsElement()[0].querySelectorAll('.md-fab-action-item');\n      var previousActionIndex = ctrl.currentActionIndex;\n\n      // Increment/decrement the counter with restrictions\n      ctrl.currentActionIndex = ctrl.currentActionIndex + direction;\n      ctrl.currentActionIndex = Math.min(actions.length - 1, ctrl.currentActionIndex);\n      ctrl.currentActionIndex = Math.max(0, ctrl.currentActionIndex);\n\n      // Let Tab and Shift+Tab escape if we're trying to move past the start/end.\n      if (event.which !== $mdConstant.KEY_CODE.TAB ||\n          previousActionIndex !== ctrl.currentActionIndex) {\n        // Focus the element\n        var focusElement = angular.element(actions[ctrl.currentActionIndex]).children()[0];\n        focusElement.focus();\n\n        // Make sure the event doesn't bubble and cause something else\n        event.preventDefault();\n        event.stopImmediatePropagation();\n      }\n    }\n\n    function doKeyLeft(event) {\n      if (ctrl.direction === 'left') {\n        doActionNext(event);\n      } else {\n        doActionPrev(event);\n      }\n    }\n\n    function doKeyUp(event) {\n      if (ctrl.direction === 'down') {\n        doActionPrev(event);\n      } else {\n        doActionNext(event);\n      }\n    }\n\n    function doKeyRight(event) {\n      if (ctrl.direction === 'left') {\n        doActionPrev(event);\n      } else {\n        doActionNext(event);\n      }\n    }\n\n    function doKeyDown(event) {\n      if (ctrl.direction === 'up') {\n        doActionPrev(event);\n      } else {\n        doActionNext(event);\n      }\n    }\n\n    function doShift(event) {\n      if (event.shiftKey) {\n        doActionPrev(event);\n      } else {\n        doActionNext(event);\n      }\n    }\n\n    /**\n     * @param {Node} element\n     * @returns {Node|null}\n     */\n    function getClosestButton(element) {\n      return $mdUtil.getClosest(element, 'button') || $mdUtil.getClosest(element, 'md-button');\n    }\n\n    /**\n     * @param {Node} element\n     * @returns {Node|null}\n     */\n    function getClosestTrigger(element) {\n      return $mdUtil.getClosest(element, 'md-fab-trigger');\n    }\n\n    /**\n     * @param {Node} element\n     * @returns {Node|null}\n     */\n    function getClosestAction(element) {\n      return $mdUtil.getClosest(element, 'md-fab-actions');\n    }\n\n    /**\n     * @param {MouseEvent|FocusEvent} event\n     */\n    function handleItemClick(event) {\n      var closestButton = event.target ? getClosestButton(event.target) : null;\n\n      // Check that the button in the trigger is not disabled\n      if (closestButton && !closestButton.disabled) {\n        if (getClosestTrigger(event.target)) {\n          ctrl.toggle();\n        }\n      }\n\n      if (getClosestAction(event.target)) {\n        ctrl.close();\n      }\n    }\n\n    function getTriggerElement() {\n      return $element.find('md-fab-trigger');\n    }\n\n    function getActionsElement() {\n      return $element.find('md-fab-actions');\n    }\n  }\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  /**\n   * The duration of the CSS animation in milliseconds.\n   *\n   * @type {number}\n   */\n  MdFabSpeedDialFlingAnimation.$inject = [\"$timeout\"];\n  MdFabSpeedDialScaleAnimation.$inject = [\"$timeout\"];\n  var cssAnimationDuration = 300;\n\n  /**\n   * @ngdoc module\n   * @name material.components.fabSpeedDial\n   */\n  angular\n    // Declare our module\n    .module('material.components.fabSpeedDial', [\n      'material.core',\n      'material.components.fabShared',\n      'material.components.fabActions'\n    ])\n\n    // Register our directive\n    .directive('mdFabSpeedDial', MdFabSpeedDialDirective)\n\n    // Register our custom animations\n    .animation('.md-fling', MdFabSpeedDialFlingAnimation)\n    .animation('.md-scale', MdFabSpeedDialScaleAnimation)\n\n    // Register a service for each animation so that we can easily inject them into unit tests\n    .service('mdFabSpeedDialFlingAnimation', MdFabSpeedDialFlingAnimation)\n    .service('mdFabSpeedDialScaleAnimation', MdFabSpeedDialScaleAnimation);\n\n  /**\n   * @ngdoc directive\n   * @name mdFabSpeedDial\n   * @module material.components.fabSpeedDial\n   *\n   * @restrict E\n   *\n   * @description\n   * The `<md-fab-speed-dial>` directive is used to present a series of popup elements (usually\n   * `<md-button>`s) for quick access to common actions.\n   *\n   * There are currently two animations available by applying one of the following classes to\n   * the component:\n   *\n   *  - `md-fling` - The speed dial items appear from underneath the trigger and move into their\n   *    appropriate positions.\n   *  - `md-scale` - The speed dial items appear in their proper places by scaling from 0% to 100%.\n   *\n   * You may also easily position the trigger by applying one one of the following classes to the\n   * `<md-fab-speed-dial>` element:\n   *  - `md-fab-top-left`\n   *  - `md-fab-top-right`\n   *  - `md-fab-bottom-left`\n   *  - `md-fab-bottom-right`\n   *\n   * These CSS classes use `position: absolute`, so you need to ensure that the container element\n   * also uses `position: absolute` or `position: relative` in order for them to work.\n   *\n   * Additionally, you may use the standard `ng-mouseenter` and `ng-mouseleave` directives to\n   * open or close the speed dial. However, if you wish to allow users to hover over the empty\n   * space where the actions will appear, you must also add the `md-hover-full` class to the speed\n   * dial element. Without this, the hover effect will only occur on top of the trigger.\n   *\n   * See the demos for more information.\n   *\n   * ## Troubleshooting\n   *\n   * If your speed dial shows the closing animation upon launch, you may need to use `ng-cloak` on\n   * the parent container to ensure that it is only visible once ready. We have plans to remove this\n   * necessity in the future.\n   *\n   * @usage\n   * <hljs lang=\"html\">\n   * <md-fab-speed-dial md-direction=\"up\" class=\"md-fling\">\n   *   <md-fab-trigger>\n   *     <md-button aria-label=\"Add...\"><md-icon md-svg-src=\"/img/icons/plus.svg\"></md-icon></md-button>\n   *   </md-fab-trigger>\n   *\n   *   <md-fab-actions>\n   *     <md-button aria-label=\"Add User\">\n   *       <md-icon md-svg-src=\"/img/icons/user.svg\"></md-icon>\n   *     </md-button>\n   *\n   *     <md-button aria-label=\"Add Group\">\n   *       <md-icon md-svg-src=\"/img/icons/group.svg\"></md-icon>\n   *     </md-button>\n   *   </md-fab-actions>\n   * </md-fab-speed-dial>\n   * </hljs>\n   *\n   * @param {string} md-direction From which direction you would like the speed dial to appear\n   * relative to the trigger element.\n   * @param {expression=} md-open Programmatically control whether or not the speed-dial is visible.\n   */\n  function MdFabSpeedDialDirective() {\n    return {\n      restrict: 'E',\n\n      scope: {\n        direction: '@?mdDirection',\n        isOpen: '=?mdOpen'\n      },\n\n      bindToController: true,\n      controller: 'MdFabController',\n      controllerAs: 'ctrl',\n\n      link: FabSpeedDialLink\n    };\n\n    function FabSpeedDialLink(scope, element) {\n      // Prepend an element to hold our CSS variables so we can use them in the animations below\n      element.prepend('<div class=\"_md-css-variables\"></div>');\n    }\n  }\n\n  function MdFabSpeedDialFlingAnimation($timeout) {\n    function delayDone(done) { $timeout(done, cssAnimationDuration, false); }\n\n    function runAnimation(element) {\n      // Don't run if we are still waiting and we are not ready\n      if (element.hasClass('md-animations-waiting') && !element.hasClass('_md-animations-ready')) {\n        return;\n      }\n\n      var el = element[0];\n      var ctrl = element.controller('mdFabSpeedDial');\n      var items = el.querySelectorAll('.md-fab-action-item');\n\n      // Grab our trigger element\n      var triggerElement = el.querySelector('md-fab-trigger');\n\n      // Grab our element which stores CSS variables\n      var variablesElement = el.querySelector('._md-css-variables');\n\n      // Setup JS variables based on our CSS variables\n      var startZIndex = parseInt(window.getComputedStyle(variablesElement).zIndex);\n\n      // Always reset the items to their natural position/state\n      angular.forEach(items, function(item, index) {\n        var styles = item.style;\n\n        styles.transform = styles.webkitTransform = '';\n        styles.transitionDelay = '';\n        styles.opacity = ctrl.isOpen ? 1 : 0;\n\n        // Make the items closest to the trigger have the highest z-index\n        styles.zIndex = (items.length - index) + startZIndex;\n      });\n\n      // Set the trigger to be above all of the actions so they disappear behind it.\n      triggerElement.style.zIndex = startZIndex + items.length + 1;\n\n      // If the control is closed, hide the items behind the trigger\n      if (!ctrl.isOpen) {\n        angular.forEach(items, function(item, index) {\n          var newPosition, axis;\n          var styles = item.style;\n\n          // Make sure to account for differences in the dimensions of the trigger verses the items\n          // so that we can properly center everything; this helps hide the item's shadows behind\n          // the trigger.\n          var triggerItemHeightOffset = (triggerElement.clientHeight - item.clientHeight) / 2;\n          var triggerItemWidthOffset = (triggerElement.clientWidth - item.clientWidth) / 2;\n\n          switch (ctrl.direction) {\n            case 'up':\n              newPosition = (item.scrollHeight * (index + 1) + triggerItemHeightOffset);\n              axis = 'Y';\n              break;\n            case 'down':\n              newPosition = -(item.scrollHeight * (index + 1) + triggerItemHeightOffset);\n              axis = 'Y';\n              break;\n            case 'left':\n              newPosition = (item.scrollWidth * (index + 1) + triggerItemWidthOffset);\n              axis = 'X';\n              break;\n            case 'right':\n              newPosition = -(item.scrollWidth * (index + 1) + triggerItemWidthOffset);\n              axis = 'X';\n              break;\n          }\n\n          var newTranslate = 'translate' + axis + '(' + newPosition + 'px)';\n\n          styles.transform = styles.webkitTransform = newTranslate;\n        });\n      }\n    }\n\n    return {\n      addClass: function(element, className, done) {\n        if (element.hasClass('md-fling')) {\n          runAnimation(element);\n          delayDone(done);\n        } else {\n          done();\n        }\n      },\n      removeClass: function(element, className, done) {\n        runAnimation(element);\n        delayDone(done);\n      }\n    };\n  }\n\n  function MdFabSpeedDialScaleAnimation($timeout) {\n    function delayDone(done) { $timeout(done, cssAnimationDuration, false); }\n\n    var delay = 65;\n\n    function runAnimation(element) {\n      var el = element[0];\n      var ctrl = element.controller('mdFabSpeedDial');\n      var items = el.querySelectorAll('.md-fab-action-item');\n\n      // Grab our element which stores CSS variables\n      var variablesElement = el.querySelector('._md-css-variables');\n\n      // Setup JS variables based on our CSS variables\n      var startZIndex = parseInt(window.getComputedStyle(variablesElement).zIndex);\n\n      // Always reset the items to their natural position/state\n      angular.forEach(items, function(item, index) {\n        var styles = item.style,\n          offsetDelay = index * delay;\n\n        styles.opacity = ctrl.isOpen ? 1 : 0;\n        styles.transform = styles.webkitTransform = ctrl.isOpen ? 'scale(1)' : 'scale(0)';\n        styles.transitionDelay = (ctrl.isOpen ? offsetDelay : (items.length - offsetDelay)) + 'ms';\n\n        // Make the items closest to the trigger have the highest z-index\n        styles.zIndex = (items.length - index) + startZIndex;\n      });\n    }\n\n    return {\n      addClass: function(element, className, done) {\n        runAnimation(element);\n        delayDone(done);\n      },\n\n      removeClass: function(element, className, done) {\n        runAnimation(element);\n        delayDone(done);\n      }\n    };\n  }\n})();\n\n})();\n(function(){\n\"use strict\";\n\n(function() {\n  'use strict';\n\n  /**\n   * @ngdoc module\n   * @name material.components.fabToolbar\n   */\n  angular\n    // Declare our module\n    .module('material.components.fabToolbar', [\n      'material.core',\n      'material.components.fabShared',\n      'material.components.fabActions'\n    ])\n\n    // Register our directive\n    .directive('mdFabToolbar', MdFabToolbarDirective)\n\n    // Register our custom animations\n    .animation('.md-fab-toolbar', MdFabToolbarAnimation)\n\n    // Register a service for the animation so that we can easily inject it into unit tests\n    .service('mdFabToolbarAnimation', MdFabToolbarAnimation);\n\n  /**\n   * @ngdoc directive\n   * @name mdFabToolbar\n   * @module material.components.fabToolbar\n   *\n   * @restrict E\n   *\n   * @description\n   *\n   * The `<md-fab-toolbar>` directive is used to present a toolbar of elements (usually `<md-button>`s)\n   * for quick access to common actions when a floating action button is activated (via click or\n   * keyboard navigation).\n   *\n   * You may also easily position the trigger by applying one one of the following classes to the\n   * `<md-fab-toolbar>` element:\n   *  - `md-fab-top-left`\n   *  - `md-fab-top-right`\n   *  - `md-fab-bottom-left`\n   *  - `md-fab-bottom-right`\n   *\n   * These CSS classes use `position: absolute`, so you need to ensure that the container element\n   * also uses `position: absolute` or `position: relative` in order for them to work.\n   *\n   * @usage\n   *\n   * <hljs lang=\"html\">\n   * <md-fab-toolbar md-direction='left'>\n   *   <md-fab-trigger>\n   *     <md-button aria-label=\"Add...\"><md-icon md-svg-src=\"/img/icons/plus.svg\"></md-icon></md-button>\n   *   </md-fab-trigger>\n   *\n   *   <md-toolbar>\n   *    <md-fab-actions>\n   *      <md-button aria-label=\"Add User\">\n   *        <md-icon md-svg-src=\"/img/icons/user.svg\"></md-icon>\n   *      </md-button>\n   *\n   *      <md-button aria-label=\"Add Group\">\n   *        <md-icon md-svg-src=\"/img/icons/group.svg\"></md-icon>\n   *      </md-button>\n   *    </md-fab-actions>\n   *   </md-toolbar>\n   * </md-fab-toolbar>\n   * </hljs>\n   *\n   * @param {string} md-direction From which direction you would like the toolbar items to appear\n   * relative to the trigger element. Supports `left` and `right` directions.\n   * @param {expression=} md-open Programmatically control whether or not the toolbar is visible.\n   */\n  function MdFabToolbarDirective() {\n    return {\n      restrict: 'E',\n      transclude: true,\n      template: '<div class=\"md-fab-toolbar-wrapper\">' +\n      '  <div class=\"md-fab-toolbar-content\" ng-transclude></div>' +\n      '</div>',\n\n      scope: {\n        direction: '@?mdDirection',\n        isOpen: '=?mdOpen'\n      },\n\n      bindToController: true,\n      controller: 'MdFabController',\n      controllerAs: 'ctrl',\n\n      link: link\n    };\n\n    function link(scope, element, attributes) {\n      // Add the base class for animations\n      element.addClass('md-fab-toolbar');\n\n      // Prepend the background element to the trigger's button\n      element.find('md-fab-trigger').find('button')\n        .prepend('<div class=\"md-fab-toolbar-background\"></div>');\n    }\n  }\n\n  function MdFabToolbarAnimation() {\n\n    function runAnimation(element, className, done) {\n      // If no className was specified, don't do anything\n      if (!className) {\n        return;\n      }\n\n      var el = element[0];\n      var ctrl = element.controller('mdFabToolbar');\n\n      // Grab the relevant child elements\n      var backgroundElement = el.querySelector('.md-fab-toolbar-background');\n      var triggerElement = el.querySelector('md-fab-trigger button');\n      var toolbarElement = el.querySelector('md-toolbar');\n      var iconElement = el.querySelector('md-fab-trigger button md-icon');\n      var actions = element.find('md-fab-actions').children();\n\n      // If we have both elements, use them to position the new background\n      if (triggerElement && backgroundElement) {\n        // Get our variables\n        var color = window.getComputedStyle(triggerElement).getPropertyValue('background-color');\n        var width = el.offsetWidth;\n        var height = el.offsetHeight;\n\n        // Make it twice as big as it should be since we scale from the center\n        var scale = 2 * (width / triggerElement.offsetWidth);\n\n        // Set some basic styles no matter what animation we're doing\n        backgroundElement.style.backgroundColor = color;\n        backgroundElement.style.borderRadius = width + 'px';\n\n        // If we're open\n        if (ctrl.isOpen) {\n          // Turn on toolbar pointer events when closed\n          toolbarElement.style.pointerEvents = 'inherit';\n\n          backgroundElement.style.width = triggerElement.offsetWidth + 'px';\n          backgroundElement.style.height = triggerElement.offsetHeight + 'px';\n          backgroundElement.style.transform = 'scale(' + scale + ')';\n\n          // Set the next close animation to have the proper delays\n          backgroundElement.style.transitionDelay = '0ms';\n          iconElement && (iconElement.style.transitionDelay = '.3s');\n\n          // Apply a transition delay to actions\n          angular.forEach(actions, function(action, index) {\n            action.style.transitionDelay = (actions.length - index) * 25 + 'ms';\n          });\n        } else {\n          // Turn off toolbar pointer events when closed\n          toolbarElement.style.pointerEvents = 'none';\n\n          // Scale it back down to the trigger's size\n          backgroundElement.style.transform = 'scale(1)';\n\n          // Reset the position\n          backgroundElement.style.top = '0';\n\n          if (element.hasClass('md-right')) {\n            backgroundElement.style.left = '0';\n            backgroundElement.style.right = null;\n          }\n\n          if (element.hasClass('md-left')) {\n            backgroundElement.style.right = '0';\n            backgroundElement.style.left = null;\n          }\n\n          // Set the next open animation to have the proper delays\n          backgroundElement.style.transitionDelay = '200ms';\n          iconElement && (iconElement.style.transitionDelay = '0ms');\n\n          // Apply a transition delay to actions\n          angular.forEach(actions, function(action, index) {\n            action.style.transitionDelay = 200 + (index * 25) + 'ms';\n          });\n        }\n      }\n    }\n\n    return {\n      addClass: function(element, className, done) {\n        runAnimation(element, className, done);\n        done();\n      },\n\n      removeClass: function(element, className, done) {\n        runAnimation(element, className, done);\n        done();\n      }\n    };\n  }\n})();\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.gridList\n */\nGridListController.$inject = [\"$mdUtil\"];\nGridLayoutFactory.$inject = [\"$mdUtil\"];\nGridListDirective.$inject = [\"$interpolate\", \"$mdConstant\", \"$mdGridLayout\", \"$mdMedia\", \"$mdUtil\"];\nGridTileDirective.$inject = [\"$mdMedia\"];\nangular.module('material.components.gridList', ['material.core'])\n       .directive('mdGridList', GridListDirective)\n       .directive('mdGridTile', GridTileDirective)\n       .directive('mdGridTileFooter', GridTileCaptionDirective)\n       .directive('mdGridTileHeader', GridTileCaptionDirective)\n       .factory('$mdGridLayout', GridLayoutFactory);\n\n/**\n * @ngdoc directive\n * @name mdGridList\n * @module material.components.gridList\n * @restrict E\n * @description\n * Grid lists are an alternative to standard list views. Grid lists are distinct\n * from grids used for layouts and other visual presentations.\n *\n * A grid list is best suited to presenting a homogenous data type, typically\n * images, and is optimized for visual comprehension and differentiating between\n * like data types.\n *\n * A grid list is a continuous element consisting of tessellated, regular\n * subdivisions called cells that contain tiles (`md-grid-tile`).\n *\n * <img src=\"//material-design.storage.googleapis.com/publish/v_2/material_ext_publish/0Bx4BSt6jniD7OVlEaXZ5YmU1Xzg/components_grids_usage2.png\"\n *    style=\"width: 300px; height: auto; margin-right: 16px;\" alt=\"Concept of grid explained visually\">\n * <img src=\"//material-design.storage.googleapis.com/publish/v_2/material_ext_publish/0Bx4BSt6jniD7VGhsOE5idWlJWXM/components_grids_usage3.png\"\n *    style=\"width: 300px; height: auto;\" alt=\"Grid concepts legend\">\n *\n * Cells are arrayed vertically and horizontally within the grid.\n *\n * Tiles hold content and can span one or more cells vertically or horizontally.\n *\n * ### Responsive Attributes\n *\n * The `md-grid-list` directive supports \"responsive\" attributes, which allow\n * different `md-cols`, `md-gutter` and `md-row-height` values depending on the\n * currently matching media query.\n *\n * In order to set a responsive attribute, first define the fallback value with\n * the standard attribute name, then add additional attributes with the\n * following convention: `{base-attribute-name}-{media-query-name}=\"{value}\"`\n * (ie. `md-cols-lg=\"8\"`)\n *\n * @param {number} md-cols Number of columns in the grid.\n * @param {string} md-row-height One of\n * <ul>\n *   <li>CSS length - Fixed height rows (eg. `8px` or `1rem`)</li>\n *   <li>`{width}:{height}` - Ratio of width to height (eg.\n *   `md-row-height=\"16:9\"`)</li>\n *   <li>`\"fit\"` - Height will be determined by subdividing the available\n *   height by the number of rows</li>\n * </ul>\n * @param {string=} md-gutter The amount of space between tiles in CSS units\n *     (default 1px)\n * @param {expression=} md-on-layout Expression to evaluate after layout. Event\n *     object is available as `$event`, and contains performance information.\n *\n * @usage\n * Basic:\n * <hljs lang=\"html\">\n * <md-grid-list md-cols=\"5\" md-gutter=\"1em\" md-row-height=\"4:3\">\n *   <md-grid-tile></md-grid-tile>\n * </md-grid-list>\n * </hljs>\n *\n * Fixed-height rows:\n * <hljs lang=\"html\">\n * <md-grid-list md-cols=\"4\" md-row-height=\"200px\" ...>\n *   <md-grid-tile></md-grid-tile>\n * </md-grid-list>\n * </hljs>\n *\n * Fit rows:\n * <hljs lang=\"html\">\n * <md-grid-list md-cols=\"4\" md-row-height=\"fit\" style=\"height: 400px;\" ...>\n *   <md-grid-tile></md-grid-tile>\n * </md-grid-list>\n * </hljs>\n *\n * Using responsive attributes:\n * <hljs lang=\"html\">\n * <md-grid-list\n *     md-cols-sm=\"2\"\n *     md-cols-md=\"4\"\n *     md-cols-lg=\"8\"\n *     md-cols-gt-lg=\"12\"\n *     ...>\n *   <md-grid-tile></md-grid-tile>\n * </md-grid-list>\n * </hljs>\n */\nfunction GridListDirective($interpolate, $mdConstant, $mdGridLayout, $mdMedia, $mdUtil) {\n  return {\n    restrict: 'E',\n    controller: GridListController,\n    scope: {\n      mdOnLayout: '&'\n    },\n    link: postLink\n  };\n\n  function postLink(scope, element, attrs, ctrl) {\n    element.addClass('_md');     // private md component indicator for styling\n\n    // Apply semantics\n    element.attr('role', 'list');\n\n    // Provide the controller with a way to trigger layouts.\n    ctrl.layoutDelegate = layoutDelegate;\n\n    var invalidateLayout = angular.bind(ctrl, ctrl.invalidateLayout),\n        unwatchAttrs = watchMedia();\n      scope.$on('$destroy', unwatchMedia);\n\n    /**\n     * Watches for changes in media, invalidating layout as necessary.\n     */\n    function watchMedia() {\n      for (var mediaName in $mdConstant.MEDIA) {\n        $mdMedia(mediaName); // initialize\n        $mdMedia.getQuery($mdConstant.MEDIA[mediaName])\n            .addListener(invalidateLayout);\n      }\n      return $mdMedia.watchResponsiveAttributes(\n          ['md-cols', 'md-row-height', 'md-gutter'], attrs, layoutIfMediaMatch);\n    }\n\n    function unwatchMedia() {\n      ctrl.layoutDelegate = angular.noop;\n\n      unwatchAttrs();\n      for (var mediaName in $mdConstant.MEDIA) {\n        $mdMedia.getQuery($mdConstant.MEDIA[mediaName])\n            .removeListener(invalidateLayout);\n      }\n    }\n\n    /**\n     * Performs grid layout if the provided mediaName matches the currently\n     * active media type.\n     */\n    function layoutIfMediaMatch(mediaName) {\n      if (mediaName == null) {\n        // TODO(shyndman): It would be nice to only layout if we have\n        // instances of attributes using this media type\n        ctrl.invalidateLayout();\n      } else if ($mdMedia(mediaName)) {\n        ctrl.invalidateLayout();\n      }\n    }\n\n    var lastLayoutProps;\n\n    /**\n     * Invokes the layout engine, and uses its results to lay out our\n     * tile elements.\n     *\n     * @param {boolean} tilesInvalidated Whether tiles have been\n     *    added/removed/moved since the last layout. This is to avoid situations\n     *    where tiles are replaced with properties identical to their removed\n     *    counterparts.\n     */\n    function layoutDelegate(tilesInvalidated) {\n      var tiles = getTileElements();\n      var props = {\n        tileSpans: getTileSpans(tiles),\n        colCount: getColumnCount(),\n        rowMode: getRowMode(),\n        rowHeight: getRowHeight(),\n        gutter: getGutter()\n      };\n\n      if (!tilesInvalidated && angular.equals(props, lastLayoutProps)) {\n        return;\n      }\n\n      var performance =\n        $mdGridLayout(props.colCount, props.tileSpans, tiles)\n          .map(function(tilePositions, rowCount) {\n            return {\n              grid: {\n                element: element,\n                style: getGridStyle(props.colCount, rowCount,\n                    props.gutter, props.rowMode, props.rowHeight)\n              },\n              tiles: tilePositions.map(function(ps, i) {\n                return {\n                  element: angular.element(tiles[i]),\n                  style: getTileStyle(ps.position, ps.spans,\n                      props.colCount, rowCount,\n                      props.gutter, props.rowMode, props.rowHeight)\n                };\n              })\n            };\n          })\n          .reflow()\n          .performance();\n\n      // Report layout\n      scope.mdOnLayout({\n        $event: {\n          performance: performance\n        }\n      });\n\n      lastLayoutProps = props;\n    }\n\n    // Use $interpolate to do some simple string interpolation as a convenience.\n\n    var startSymbol = $interpolate.startSymbol();\n    var endSymbol = $interpolate.endSymbol();\n\n    // Returns an expression wrapped in the interpolator's start and end symbols.\n    function expr(exprStr) {\n      return startSymbol + exprStr + endSymbol;\n    }\n\n    // The amount of space a single 1x1 tile would take up (either width or height), used as\n    // a basis for other calculations. This consists of taking the base size percent (as would be\n    // if evenly dividing the size between cells), and then subtracting the size of one gutter.\n    // However, since there are no gutters on the edges, each tile only uses a fration\n    // (gutterShare = numGutters / numCells) of the gutter size. (Imagine having one gutter per\n    // tile, and then breaking up the extra gutter on the edge evenly among the cells).\n    var UNIT = $interpolate(expr('share') + '% - (' + expr('gutter') + ' * ' + expr('gutterShare') + ')');\n\n    // The horizontal or vertical position of a tile, e.g., the 'top' or 'left' property value.\n    // The position comes the size of a 1x1 tile plus gutter for each previous tile in the\n    // row/column (offset).\n    var POSITION  = $interpolate('calc((' + expr('unit') + ' + ' + expr('gutter') + ') * ' + expr('offset') + ')');\n\n    // The actual size of a tile, e.g., width or height, taking rowSpan or colSpan into account.\n    // This is computed by multiplying the base unit by the rowSpan/colSpan, and then adding back\n    // in the space that the gutter would normally have used (which was already accounted for in\n    // the base unit calculation).\n    var DIMENSION = $interpolate('calc((' + expr('unit') + ') * ' + expr('span') + ' + (' + expr('span') + ' - 1) * ' + expr('gutter') + ')');\n\n    /**\n     * Gets the styles applied to a tile element described by the given parameters.\n     * @param {{row: number, col: number}} position The row and column indices of the tile.\n     * @param {{row: number, col: number}} spans The rowSpan and colSpan of the tile.\n     * @param {number} colCount The number of columns.\n     * @param {number} rowCount The number of rows.\n     * @param {string} gutter The amount of space between tiles. This will be something like\n     *     '5px' or '2em'.\n     * @param {string} rowMode The row height mode. Can be one of:\n     *     'fixed': all rows have a fixed size, given by rowHeight,\n     *     'ratio': row height defined as a ratio to width, or\n     *     'fit': fit to the grid-list element height, divinding evenly among rows.\n     * @param {string|number} rowHeight The height of a row. This is only used for 'fixed' mode and\n     *     for 'ratio' mode. For 'ratio' mode, this is the *ratio* of width-to-height (e.g., 0.75).\n     * @returns {Object} Map of CSS properties to be applied to the style element. Will define\n     *     values for top, left, width, height, marginTop, and paddingTop.\n     */\n    function getTileStyle(position, spans, colCount, rowCount, gutter, rowMode, rowHeight) {\n      // TODO(shyndman): There are style caching opportunities here.\n\n      // Percent of the available horizontal space that one column takes up.\n      var hShare = (1 / colCount) * 100;\n\n      // Fraction of the gutter size that each column takes up.\n      var hGutterShare = (colCount - 1) / colCount;\n\n      // Base horizontal size of a column.\n      var hUnit = UNIT({share: hShare, gutterShare: hGutterShare, gutter: gutter});\n\n      // The width and horizontal position of each tile is always calculated the same way, but the\n      // height and vertical position depends on the rowMode.\n      var style = (!$mdUtil.isRtl(attrs)) ? {\n          left: POSITION({ unit: hUnit, offset: position.col, gutter: gutter }),\n          width: DIMENSION({ unit: hUnit, span: spans.col, gutter: gutter }),\n          // resets\n          paddingTop: '',\n          marginTop: '',\n          top: '',\n          height: ''\n        } : {\n        right: POSITION({ unit: hUnit, offset: position.col, gutter: gutter }),\n        width: DIMENSION({ unit: hUnit, span: spans.col, gutter: gutter }),\n        // resets\n        paddingTop: '',\n        marginTop: '',\n        top: '',\n        height: ''\n      };\n\n      switch (rowMode) {\n        case 'fixed':\n          // In fixed mode, simply use the given rowHeight.\n          style.top = POSITION({ unit: rowHeight, offset: position.row, gutter: gutter });\n          style.height = DIMENSION({ unit: rowHeight, span: spans.row, gutter: gutter });\n          break;\n\n        case 'ratio':\n          // Percent of the available vertical space that one row takes up. Here, rowHeight holds\n          // the ratio value. For example, if the width:height ratio is 4:3, rowHeight = 1.333.\n          var vShare = hShare / rowHeight;\n\n          // Base veritcal size of a row.\n          var vUnit = UNIT({ share: vShare, gutterShare: hGutterShare, gutter: gutter });\n\n          // padidngTop and marginTop are used to maintain the given aspect ratio, as\n          // a percentage-based value for these properties is applied to the *width* of the\n          // containing block. See http://www.w3.org/TR/CSS2/box.html#margin-properties\n          style.paddingTop = DIMENSION({ unit: vUnit, span: spans.row, gutter: gutter});\n          style.marginTop = POSITION({ unit: vUnit, offset: position.row, gutter: gutter });\n          break;\n\n        case 'fit':\n          // Fraction of the gutter size that each column takes up.\n          var vGutterShare = (rowCount - 1) / rowCount;\n\n          // Percent of the available vertical space that one row takes up.\n          vShare = (1 / rowCount) * 100;\n\n          // Base vertical size of a row.\n          vUnit = UNIT({share: vShare, gutterShare: vGutterShare, gutter: gutter});\n\n          style.top = POSITION({unit: vUnit, offset: position.row, gutter: gutter});\n          style.height = DIMENSION({unit: vUnit, span: spans.row, gutter: gutter});\n          break;\n      }\n\n      return style;\n    }\n\n    function getGridStyle(colCount, rowCount, gutter, rowMode, rowHeight) {\n      var style = {};\n\n      switch (rowMode) {\n        case 'fixed':\n          style.height = DIMENSION({ unit: rowHeight, span: rowCount, gutter: gutter });\n          style.paddingBottom = '';\n          break;\n\n        case 'ratio':\n          // rowHeight is width / height\n          var hGutterShare = colCount === 1 ? 0 : (colCount - 1) / colCount,\n              hShare = (1 / colCount) * 100,\n              vShare = hShare * (1 / rowHeight),\n              vUnit = UNIT({ share: vShare, gutterShare: hGutterShare, gutter: gutter });\n\n          style.height = '';\n          style.paddingBottom = DIMENSION({ unit: vUnit, span: rowCount, gutter: gutter});\n          break;\n\n        case 'fit':\n          // noop, as the height is user set\n          break;\n      }\n\n      return style;\n    }\n\n    function getTileElements() {\n      return [].filter.call(element.children(), function(ele) {\n        return ele.tagName == 'MD-GRID-TILE' && !ele.$$mdDestroyed;\n      });\n    }\n\n    /**\n     * Gets an array of objects containing the rowspan and colspan for each tile.\n     * @returns {Array<{row: number, col: number}>}\n     */\n    function getTileSpans(tileElements) {\n      return [].map.call(tileElements, function(ele) {\n        var ctrl = angular.element(ele).controller('mdGridTile');\n        return {\n          row: parseInt(\n              $mdMedia.getResponsiveAttribute(ctrl.$attrs, 'md-rowspan'), 10) || 1,\n          col: parseInt(\n              $mdMedia.getResponsiveAttribute(ctrl.$attrs, 'md-colspan'), 10) || 1\n        };\n      });\n    }\n\n    function getColumnCount() {\n      var colCount = parseInt($mdMedia.getResponsiveAttribute(attrs, 'md-cols'), 10);\n      if (isNaN(colCount)) {\n        throw 'md-grid-list: md-cols attribute was not found, or contained a non-numeric value';\n      }\n      return colCount;\n    }\n\n    function getGutter() {\n      return applyDefaultUnit($mdMedia.getResponsiveAttribute(attrs, 'md-gutter') || 1);\n    }\n\n    function getRowHeight() {\n      var rowHeight = $mdMedia.getResponsiveAttribute(attrs, 'md-row-height');\n      if (!rowHeight) {\n        throw 'md-grid-list: md-row-height attribute was not found';\n      }\n\n      switch (getRowMode()) {\n        case 'fixed':\n          return applyDefaultUnit(rowHeight);\n        case 'ratio':\n          var whRatio = rowHeight.split(':');\n          return parseFloat(whRatio[0]) / parseFloat(whRatio[1]);\n        case 'fit':\n          return 0; // N/A\n      }\n    }\n\n    function getRowMode() {\n      var rowHeight = $mdMedia.getResponsiveAttribute(attrs, 'md-row-height');\n      if (!rowHeight) {\n        throw 'md-grid-list: md-row-height attribute was not found';\n      }\n\n      if (rowHeight == 'fit') {\n        return 'fit';\n      } else if (rowHeight.indexOf(':') !== -1) {\n        return 'ratio';\n      } else {\n        return 'fixed';\n      }\n    }\n\n    function applyDefaultUnit(val) {\n      return /\\D$/.test(val) ? val : val + 'px';\n    }\n  }\n}\n\n/* @ngInject */\nfunction GridListController($mdUtil) {\n  this.layoutInvalidated = false;\n  this.tilesInvalidated = false;\n  this.$timeout_ = $mdUtil.nextTick;\n  this.layoutDelegate = angular.noop;\n}\n\nGridListController.prototype = {\n  invalidateTiles: function() {\n    this.tilesInvalidated = true;\n    this.invalidateLayout();\n  },\n\n  invalidateLayout: function() {\n    if (this.layoutInvalidated) {\n      return;\n    }\n    this.layoutInvalidated = true;\n    this.$timeout_(angular.bind(this, this.layout));\n  },\n\n  layout: function() {\n    try {\n      this.layoutDelegate(this.tilesInvalidated);\n    } finally {\n      this.layoutInvalidated = false;\n      this.tilesInvalidated = false;\n    }\n  }\n};\n\n\n/* @ngInject */\nfunction GridLayoutFactory($mdUtil) {\n  var defaultAnimator = GridTileAnimator;\n\n  /**\n   * Set the reflow animator callback\n   */\n  GridLayout.animateWith = function(customAnimator) {\n    defaultAnimator = !angular.isFunction(customAnimator) ? GridTileAnimator : customAnimator;\n  };\n\n  return GridLayout;\n\n  /**\n   * Publish layout function\n   */\n  function GridLayout(colCount, tileSpans) {\n      var self, layoutInfo, gridStyles, layoutTime, mapTime, reflowTime;\n\n      layoutTime = $mdUtil.time(function() {\n        layoutInfo = calculateGridFor(colCount, tileSpans);\n      });\n\n      return self = {\n\n        /**\n         * An array of objects describing each tile's position in the grid.\n         */\n        layoutInfo: function() {\n          return layoutInfo;\n        },\n\n        /**\n         * Maps grid positioning to an element and a set of styles using the\n         * provided updateFn.\n         */\n        map: function(updateFn) {\n          mapTime = $mdUtil.time(function() {\n            var info = self.layoutInfo();\n            gridStyles = updateFn(info.positioning, info.rowCount);\n          });\n          return self;\n        },\n\n        /**\n         * Default animator simply sets the element.css( <styles> ). An alternate\n         * animator can be provided as an argument. The function has the following\n         * signature:\n         *\n         *    function({grid: {element: JQLite, style: Object}, tiles: Array<{element: JQLite, style: Object}>)\n         */\n        reflow: function(animatorFn) {\n          reflowTime = $mdUtil.time(function() {\n            var animator = animatorFn || defaultAnimator;\n            animator(gridStyles.grid, gridStyles.tiles);\n          });\n          return self;\n        },\n\n        /**\n         * Timing for the most recent layout run.\n         */\n        performance: function() {\n          return {\n            tileCount: tileSpans.length,\n            layoutTime: layoutTime,\n            mapTime: mapTime,\n            reflowTime: reflowTime,\n            totalTime: layoutTime + mapTime + reflowTime\n          };\n        }\n      };\n    }\n\n  /**\n   * Default Gridlist animator simple sets the css for each element;\n   * NOTE: any transitions effects must be manually set in the CSS.\n   * e.g.\n   *\n   *  md-grid-tile {\n   *    transition: all 700ms ease-out 50ms;\n   *  }\n   *\n   */\n  function GridTileAnimator(grid, tiles) {\n    grid.element.css(grid.style);\n    tiles.forEach(function(t) {\n      t.element.css(t.style);\n    });\n  }\n\n  /**\n   * Calculates the positions of tiles.\n   *\n   * The algorithm works as follows:\n   *    An Array<Number> with length colCount (spaceTracker) keeps track of\n   *    available tiling positions, where elements of value 0 represents an\n   *    empty position. Space for a tile is reserved by finding a sequence of\n   *    0s with length <= than the tile's colspan. When such a space has been\n   *    found, the occupied tile positions are incremented by the tile's\n   *    rowspan value, as these positions have become unavailable for that\n   *    many rows.\n   *\n   *    If the end of a row has been reached without finding space for the\n   *    tile, spaceTracker's elements are each decremented by 1 to a minimum\n   *    of 0. Rows are searched in this fashion until space is found.\n   */\n  function calculateGridFor(colCount, tileSpans) {\n    var curCol = 0,\n        curRow = 0,\n        spaceTracker = newSpaceTracker();\n\n    return {\n      positioning: tileSpans.map(function(spans, i) {\n        return {\n          spans: spans,\n          position: reserveSpace(spans, i)\n        };\n      }),\n      rowCount: curRow + Math.max.apply(Math, spaceTracker)\n    };\n\n    function reserveSpace(spans, i) {\n      if (spans.col > colCount) {\n        throw 'md-grid-list: Tile at position ' + i + ' has a colspan ' +\n            '(' + spans.col + ') that exceeds the column count ' +\n            '(' + colCount + ')';\n      }\n\n      var start = 0,\n          end = 0;\n\n      // TODO(shyndman): This loop isn't strictly necessary if you can\n      // determine the minimum number of rows before a space opens up. To do\n      // this, recognize that you've iterated across an entire row looking for\n      // space, and if so fast-forward by the minimum rowSpan count. Repeat\n      // until the required space opens up.\n      while (end - start < spans.col) {\n        if (curCol >= colCount) {\n          nextRow();\n          continue;\n        }\n\n        start = spaceTracker.indexOf(0, curCol);\n        if (start === -1 || (end = findEnd(start + 1)) === -1) {\n          start = end = 0;\n          nextRow();\n          continue;\n        }\n\n        curCol = end + 1;\n      }\n\n      adjustRow(start, spans.col, spans.row);\n      curCol = start + spans.col;\n\n      return {\n        col: start,\n        row: curRow\n      };\n    }\n\n    function nextRow() {\n      curCol = 0;\n      curRow++;\n      adjustRow(0, colCount, -1); // Decrement row spans by one\n    }\n\n    function adjustRow(from, cols, by) {\n      for (var i = from; i < from + cols; i++) {\n        spaceTracker[i] = Math.max(spaceTracker[i] + by, 0);\n      }\n    }\n\n    function findEnd(start) {\n      var i;\n      for (i = start; i < spaceTracker.length; i++) {\n        if (spaceTracker[i] !== 0) {\n          return i;\n        }\n      }\n\n      if (i === spaceTracker.length) {\n        return i;\n      }\n    }\n\n    function newSpaceTracker() {\n      var tracker = [];\n      for (var i = 0; i < colCount; i++) {\n        tracker.push(0);\n      }\n      return tracker;\n    }\n  }\n}\n\n/**\n * @ngdoc directive\n * @name mdGridTile\n * @module material.components.gridList\n * @restrict E\n * @description\n * Tiles contain the content of an `md-grid-list`. They span one or more grid\n * cells vertically or horizontally, and use `md-grid-tile-{footer,header}` to\n * display secondary content.\n *\n * ### Responsive Attributes\n *\n * The `md-grid-tile` directive supports \"responsive\" attributes, which allow\n * different `md-rowspan` and `md-colspan` values depending on the currently\n * matching media query.\n *\n * In order to set a responsive attribute, first define the fallback value with\n * the standard attribute name, then add additional attributes with the\n * following convention: `{base-attribute-name}-{media-query-name}=\"{value}\"`\n * (ie. `md-colspan-sm=\"4\"`)\n *\n * @param {number=} md-colspan The number of columns to span (default 1). Cannot\n *    exceed the number of columns in the grid. Supports interpolation.\n * @param {number=} md-rowspan The number of rows to span (default 1). Supports\n *     interpolation.\n *\n * @usage\n * With header:\n * <hljs lang=\"html\">\n * <md-grid-tile>\n *   <md-grid-tile-header>\n *     <h3>This is a header</h3>\n *   </md-grid-tile-header>\n * </md-grid-tile>\n * </hljs>\n *\n * With footer:\n * <hljs lang=\"html\">\n * <md-grid-tile>\n *   <md-grid-tile-footer>\n *     <h3>This is a footer</h3>\n *   </md-grid-tile-footer>\n * </md-grid-tile>\n * </hljs>\n *\n * Spanning multiple rows/columns:\n * <hljs lang=\"html\">\n * <md-grid-tile md-colspan=\"2\" md-rowspan=\"3\">\n * </md-grid-tile>\n * </hljs>\n *\n * Responsive attributes:\n * <hljs lang=\"html\">\n * <md-grid-tile md-colspan=\"1\" md-colspan-sm=\"3\" md-colspan-md=\"5\">\n * </md-grid-tile>\n * </hljs>\n */\nfunction GridTileDirective($mdMedia) {\n  return {\n    restrict: 'E',\n    require: '^mdGridList',\n    template: '<figure ng-transclude></figure>',\n    transclude: true,\n    scope: {},\n    // Simple controller that exposes attributes to the grid directive\n    controller: [\"$attrs\", function($attrs) {\n      this.$attrs = $attrs;\n    }],\n    link: postLink\n  };\n\n  function postLink(scope, element, attrs, gridCtrl) {\n    // Apply semantics\n    element.attr('role', 'listitem');\n\n    // If our colspan or rowspan changes, trigger a layout\n    var unwatchAttrs = $mdMedia.watchResponsiveAttributes(['md-colspan', 'md-rowspan'],\n        attrs, angular.bind(gridCtrl, gridCtrl.invalidateLayout));\n\n    // Tile registration/deregistration\n    gridCtrl.invalidateTiles();\n    scope.$on('$destroy', function() {\n      // Mark the tile as destroyed so it is no longer considered in layout,\n      // even if the DOM element sticks around (like during a leave animation)\n      element[0].$$mdDestroyed = true;\n      unwatchAttrs();\n      gridCtrl.invalidateLayout();\n    });\n\n    if (angular.isDefined(scope.$parent.$index)) {\n      scope.$watch(function() { return scope.$parent.$index; },\n        function indexChanged(newIdx, oldIdx) {\n          if (newIdx === oldIdx) {\n            return;\n          }\n          gridCtrl.invalidateTiles();\n        });\n    }\n  }\n}\n\n\nfunction GridTileCaptionDirective() {\n  return {\n    template: '<figcaption ng-transclude></figcaption>',\n    transclude: true\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.icon\n * @description\n * Icon\n */\nangular.module('material.components.icon', ['material.core']);\n\n})();\n(function(){\n\"use strict\";\n\nangular\n  .module('material.components.icon')\n  .directive('mdIcon', ['$mdIcon', '$mdTheming', '$mdAria', '$sce', mdIconDirective]);\n\n/**\n * @ngdoc directive\n * @name mdIcon\n * @module material.components.icon\n *\n * @restrict E\n *\n * @description\n * The `md-icon` directive makes it easier to use vector-based icons in your app (as opposed to\n * raster-based icons types like PNG). The directive supports both icon fonts and SVG icons.\n *\n * Icons should be considered view-only elements that should not be used directly as buttons; instead nest a `<md-icon>`\n * inside a `md-button` to add hover and click features.\n *\n * ### Icon fonts\n * Icon fonts are a technique in which you use a font where the glyphs in the font are\n * your icons instead of text. Benefits include a straightforward way to bundle everything into a\n * single HTTP request, simple scaling, easy color changing, and more.\n *\n * `md-icon` lets you consume an icon font by letting you reference specific icons in that font\n * by name rather than character code.\n *\n * When using font-icons, developers must follow three (3) simple steps:\n *\n * <ol>\n * <li>Load the font library. e.g.<br/>\n *    `<link href=\"https://fonts.googleapis.com/icon?family=Material+Icons\" rel=\"stylesheet\">`\n * </li>\n * <li>\n *   Use either (a) font-icon class names or (b) a fontset and a font ligature to render the font glyph by\n *   using its textual name _or_ numerical character reference. Note that `material-icons` is the default fontset when\n *   none is specified.\n * </li>\n * <li> Use any of the following templates: <br/>\n *   <ul>\n *     <li>`<md-icon md-font-icon=\"classname\"></md-icon>`</li>\n *     <li>`<md-icon md-font-set=\"font library classname or alias\">textual_name</md-icon>`</li>\n *     <li>`<md-icon> numerical_character_reference </md-icon>`</li>\n *     <li>`<md-icon ng_bind=\"'textual_name'\"></md-icon>`</li>\n *     <li>`<md-icon ng-bind=\"scopeVariable\"></md-icon>`</li>\n *   </ul>\n * </li>\n * </ol>\n *\n * Full details for these steps can be found in the\n * <a href=\"http://google.github.io/material-design-icons/#icon-font-for-the-web\" target=\"_blank\">\n * Material Design Icon font for the web docs</a>.\n *\n * You can browse and search the Material Design icon style <code>.material-icons</code>\n * in the <a href=\"https://material.io/tools/icons/\" target=\"_blank\">Material Design Icons tool</a>.\n *\n * ### SVG\n * For SVGs, the problem with using `<img>` or a CSS `background-image` is that you can't take\n * advantage of some SVG features, such as styling specific parts of the icon with CSS or SVG\n * animation.\n *\n * `md-icon` makes it easier to use SVG icons by *inlining* the SVG into an `<svg>` element in the\n * document. The most straightforward way of referencing an SVG icon is via URL, just like a\n * traditional `<img>`. `$mdIconProvider`, as a convenience, lets you _name_ an icon so you can\n * reference it by name instead of URL throughout your templates.\n *\n * Additionally, you may not want to make separate HTTP requests for every icon, so you can bundle\n * your SVG icons together and pre-load them with `$mdIconProvider` as an icon set. An icon set can\n * also be given a name, which acts as a namespace for individual icons, so you can reference them\n * like `\"social:cake\"`.\n *\n * When using SVGs, both external SVGs (via URLs) or sets of SVGs (from icon sets) can be\n * easily loaded and used.\n *\n * ### Localization\n *\n * Because an `md-icon` element's text content is not intended to be translated, it is recommended\n * to declare the text content for an `md-icon` element in its start tag. Instead of using the HTML\n * text content, consider using `ng-bind` with a scope variable or literal string.\n *\n * Examples:\n *\n * <ul>\n *   <li>`<md-icon ng-bind=\"myIconVariable\"></md-icon>`</li>\n *   <li>`<md-icon ng-bind=\"'menu'\"></md-icon>`\n * </ul>\n *\n * <h2 id=\"material_design_icons\">Material Design Icons tool</h2>\n * Using the Material Design Icons tool, developers can easily and quickly search for a specific\n * open source Material Design icon. The search is in the top left. Below search, you can select\n * from the new icon themes or filter by icon category.\n *\n * <a href=\"https://material.io/tools/icons/\" target=\"_blank\" style=\"border-bottom:none;\">\n * <img src=\"https://user-images.githubusercontent.com/3506071/41942584-ef0695d0-796d-11e8-9436-44f25023a111.png\"\n *      aria-label=\"Material Design Icons tool\" style=\"max-width:95%\">\n * </a>\n *\n * <div class=\"md-caption\" style=\"text-align: center; margin-bottom: 24px\">\n *  Click on the image above to open the\n *  <a href=\"https://material.io/tools/icons/\" target=\"_blank\">Material Design Icons tool</a>.\n * </div>\n *\n * Click on any icon, then click on the \"Selected Icon\" chevron to see the slide-up\n * information panel with details regarding a SVG download and information on the font-icon's\n * textual name. This panel also allows you to select a black on transparent or white on transparent\n * icon and to change the icon size. These settings only affect the downloaded icons.\n *\n * @param {string} md-font-icon String name of CSS icon associated with the font-face will be used\n *  to render the icon. Requires the fonts and the named CSS styles to be preloaded.\n * @param {string} md-font-set CSS style name associated with the font library; which will be assigned as\n *  the class for the font-icon ligature. This value may also be an alias that is used to lookup the classname;\n *  internally use `$mdIconProvider.fontSet(<alias>)` to determine the style name.\n * @param {string} md-svg-src String URL (or expression) used to load, cache, and display an\n *  external SVG.\n * @param {string} md-svg-icon md-svg-icon String name used for lookup of the icon from the internal cache;\n *  interpolated strings or expressions may also be used. Specific set names can be used with\n *  the syntax `<set name>:<icon name>`.<br/><br/>\n *  To use icon sets, developers are required to pre-register the sets using the `$mdIconProvider` service.\n * @param {string=} aria-label Labels the icon for accessibility. If an empty string is provided,\n *  the icon will be hidden from the accessibility layer with `aria-hidden=\"true\"`. If there is no\n *  `aria-label` attribute on the icon, we check the following, in order: the `alt` attribute, the\n *  `aria-label` from the parent element, the icon's `md-font-icon` or `md-svg-icon` string, and the\n *  text content inside `<md-icon></md-icon>`. If none of these have any text, the icon is hidden\n *  from the accessibility layer with `aria-hidden=\"true\"`.\n * @param {string=} alt Labels the icon for accessibility. If an empty string is provided and the\n *  icon has no `aria-label`, then the icon will be hidden from accessibility layer with\n *  `aria-hidden=\"true\"`.\n *\n * @usage\n * When using SVGs:\n * <hljs lang=\"html\">\n *\n *<!-- Icon ID; may contain optional icon set prefix.\n *     Icons must be registered using $mdIconProvider. -->\n *<md-icon md-svg-icon=\"social:android\"    aria-label=\"android \" ></md-icon>\n *\n *<!-- Icon urls; may be preloaded in templateCache -->\n *<md-icon md-svg-src=\"/android.svg\"       aria-label=\"android \" ></md-icon>\n *<md-icon md-svg-src=\"{{ getAndroid() }}\" aria-label=\"android \" ></md-icon>\n *\n * </hljs>\n *\n * Use the <code>$mdIconProvider</code> to configure your application with\n * SVG icon sets.\n *\n * <hljs lang=\"js\">\n * angular.module('appSvgIconSets', ['ngMaterial'])\n *   .controller('DemoCtrl', function($scope) {})\n *   .config(function($mdIconProvider) {\n *     $mdIconProvider\n *       .iconSet('social', 'img/icons/sets/social-icons.svg', 24)\n *       .defaultIconSet('img/icons/sets/core-icons.svg', 24);\n *    });\n * </hljs>\n *\n *\n * When using Font Icons with classnames:\n * <hljs lang=\"html\">\n *\n * <md-icon md-font-icon=\"android\" aria-label=\"android\" ></md-icon>\n * <md-icon class=\"icon_home\" aria-label=\"Home\"></md-icon>\n *\n * </hljs>\n *\n * When using Material Font Icons with ligatures:\n * <hljs lang=\"html\">\n *  <!--\n *  For Material Design Icons\n *  The class '.material-icons' is auto-added if a style has NOT been specified\n *  since `material-icons` is the default fontset. So your markup:\n *  -->\n *  <md-icon> face </md-icon>\n *  <!-- becomes this at runtime: -->\n *  <md-icon md-font-set=\"material-icons\"> face </md-icon>\n *  <!-- If the fontset does not support ligature names, then we need to use the ligature unicode.-->\n *  <md-icon> &#xE87C; </md-icon>\n *  <!-- The class '.material-icons' must be manually added if other styles are also specified-->\n *  <md-icon class=\"material-icons md-light md-48\"> face </md-icon>\n * </hljs>\n *\n * When using other Font-Icon libraries:\n *\n * <hljs lang=\"js\">\n *  // Specify a font-icon style alias\n *  angular.config(function($mdIconProvider) {\n *    $mdIconProvider.fontSet('md', 'material-icons');\n *  });\n * </hljs>\n *\n * <hljs lang=\"html\">\n *  <md-icon md-font-set=\"md\">favorite</md-icon>\n * </hljs>\n *\n */\nfunction mdIconDirective($mdIcon, $mdTheming, $mdAria, $sce) {\n\n  return {\n    restrict: 'E',\n    link : postLink\n  };\n\n\n  /**\n   * Directive postLink\n   * Supports embedded SVGs, font-icons, & external SVGs.\n   * @param {IScope} scope\n   * @param {JQLite} element\n   * @param {IAttributes} attr\n   */\n  function postLink(scope, element, attr) {\n    $mdTheming(element);\n    var lastFontIcon = attr.mdFontIcon;\n    var lastFontSet = $mdIcon.fontSet(attr.mdFontSet);\n\n    prepareForFontIcon();\n\n    attr.$observe('mdFontIcon', fontIconChanged);\n    attr.$observe('mdFontSet', fontIconChanged);\n\n    /* Provide a default accessibility role of img */\n    if (!attr.role) {\n      $mdAria.expect(element, 'role', 'img');\n      /* manually update attr variable */\n      attr.role = 'img';\n    }\n\n    // If the aria-label is explicitly set to the empty string, then hide this element from the\n    // accessibility layer.\n    if (element[0].hasAttribute('aria-label') && attr.ariaLabel === '') {\n      element.attr('aria-hidden', true);\n    }\n\n    /* Don't process ARIA if already valid */\n    if (attr.role === \"img\" && !attr.ariaHidden && !$mdAria.hasAriaLabel(element)) {\n      // If the developer signals to hide this icon from the accessibility layer, do so.\n      if (element[0].hasAttribute('alt') && attr.alt === '') {\n        element.attr('aria-hidden', true);\n      } else if (attr.alt) {\n        /* Use the alt text for the aria-label by default, if available. */\n        $mdAria.expect(element, 'aria-label', attr.alt);\n      } else if ($mdAria.parentHasAriaLabel(element, 2)) {\n        /* Parent has ARIA so we will assume it will describe the icon. */\n        $mdAria.expect(element, 'aria-hidden', 'true');\n      } else if (attr.mdFontIcon || attr.mdSvgIcon || element.text()) {\n        /* Use icon name or node's text content as the aria-label */\n        $mdAria.expect(element, 'aria-label', attr.mdFontIcon || attr.mdSvgIcon || element.text());\n      } else {\n        /* No label found, hide this icon from the accessibility layer */\n        $mdAria.expect(element, 'aria-hidden', 'true');\n      }\n    }\n\n    var attrName = attr.$normalize(attr.$attr.mdSvgIcon || attr.$attr.mdSvgSrc || '');\n    if (attrName) {\n      // Use either pre-configured SVG or URL source, respectively.\n      attr.$observe(attrName, function(attrVal) {\n        element.empty();\n        if (attrVal) {\n          $mdIcon(attrVal)\n            .then(function(svg) {\n            element.empty();\n            element.append(svg);\n          });\n        }\n      });\n    }\n\n    function prepareForFontIcon() {\n      if (!attr.mdSvgIcon && !attr.mdSvgSrc) {\n        if (attr.mdFontIcon) {\n          element.addClass('md-font ' + attr.mdFontIcon);\n        }\n\n        element.addClass(lastFontSet);\n      }\n    }\n\n    function fontIconChanged() {\n      if (!attr.mdSvgIcon && !attr.mdSvgSrc) {\n        if (attr.mdFontIcon) {\n          element.removeClass(lastFontIcon);\n          element.addClass(attr.mdFontIcon);\n\n          lastFontIcon = attr.mdFontIcon;\n        }\n\n        var fontSet = $mdIcon.fontSet(attr.mdFontSet);\n\n        if (lastFontSet !== fontSet) {\n          element.removeClass(lastFontSet);\n          element.addClass(fontSet);\n\n          lastFontSet = fontSet;\n        }\n      }\n    }\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n  \nMdIconService.$inject = [\"config\", \"$templateRequest\", \"$q\", \"$log\", \"$mdUtil\", \"$sce\"];angular\n    .module('material.components.icon')\n    .constant('$$mdSvgRegistry', {\n        'mdTabsArrow':   'data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHg9IjBweCIgeT0iMHB4IiB2aWV3Qm94PSIwIDAgMjQgMjQiPjxnPjxwb2x5Z29uIHBvaW50cz0iMTUuNCw3LjQgMTQsNiA4LDEyIDE0LDE4IDE1LjQsMTYuNiAxMC44LDEyICIvPjwvZz48L3N2Zz4=',\n        'mdClose':       'data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHg9IjBweCIgeT0iMHB4IiB2aWV3Qm94PSIwIDAgMjQgMjQiPjxnPjxwYXRoIGQ9Ik0xOSA2LjQxbC0xLjQxLTEuNDEtNS41OSA1LjU5LTUuNTktNS41OS0xLjQxIDEuNDEgNS41OSA1LjU5LTUuNTkgNS41OSAxLjQxIDEuNDEgNS41OS01LjU5IDUuNTkgNS41OSAxLjQxLTEuNDEtNS41OS01LjU5eiIvPjwvZz48L3N2Zz4=',\n        'mdCancel':      'data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHg9IjBweCIgeT0iMHB4IiB2aWV3Qm94PSIwIDAgMjQgMjQiPjxnPjxwYXRoIGQ9Ik0xMiAyYy01LjUzIDAtMTAgNC40Ny0xMCAxMHM0LjQ3IDEwIDEwIDEwIDEwLTQuNDcgMTAtMTAtNC40Ny0xMC0xMC0xMHptNSAxMy41OWwtMS40MSAxLjQxLTMuNTktMy41OS0zLjU5IDMuNTktMS40MS0xLjQxIDMuNTktMy41OS0zLjU5LTMuNTkgMS40MS0xLjQxIDMuNTkgMy41OSAzLjU5LTMuNTkgMS40MSAxLjQxLTMuNTkgMy41OSAzLjU5IDMuNTl6Ii8+PC9nPjwvc3ZnPg==',\n        'mdMenu':        'data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHg9IjBweCIgeT0iMHB4IiB2aWV3Qm94PSIwIDAgMjQgMjQiPjxwYXRoIGQ9Ik0zLDZIMjFWOEgzVjZNMywxMUgyMVYxM0gzVjExTTMsMTZIMjFWMThIM1YxNloiIC8+PC9zdmc+',\n        'mdToggleArrow': 'data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHg9IjBweCIgeT0iMHB4IiB2aWV3Qm94PSIwIDAgNDggNDgiPjxwYXRoIGQ9Ik0yNCAxNmwtMTIgMTIgMi44MyAyLjgzIDkuMTctOS4xNyA5LjE3IDkuMTcgMi44My0yLjgzeiIvPjxwYXRoIGQ9Ik0wIDBoNDh2NDhoLTQ4eiIgZmlsbD0ibm9uZSIvPjwvc3ZnPg==',\n        'mdCalendar':    'data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNCIgaGVpZ2h0PSIyNCIgdmlld0JveD0iMCAwIDI0IDI0Ij48cGF0aCBkPSJNMTkgM2gtMVYxaC0ydjJIOFYxSDZ2Mkg1Yy0xLjExIDAtMS45OS45LTEuOTkgMkwzIDE5YzAgMS4xLjg5IDIgMiAyaDE0YzEuMSAwIDItLjkgMi0yVjVjMC0xLjEtLjktMi0yLTJ6bTAgMTZINVY4aDE0djExek03IDEwaDV2NUg3eiIvPjwvc3ZnPg==',\n        'mdChecked':     'data:image/svg+xml;base64,PHN2ZyB2ZXJzaW9uPSIxLjEiIHg9IjBweCIgeT0iMHB4IiB2aWV3Qm94PSIwIDAgMjQgMjQiPjxnPjxwYXRoIGQ9Ik05IDE2LjE3TDQuODMgMTJsLTEuNDIgMS40MUw5IDE5IDIxIDdsLTEuNDEtMS40MXoiLz48L2c+PC9zdmc+'\n    })\n    .provider('$mdIcon', MdIconProvider);\n\n/**\n * @ngdoc service\n * @name $mdIconProvider\n * @module material.components.icon\n *\n * @description\n * `$mdIconProvider` is used only to register icon IDs with URLs. These configuration features allow\n * icons and icon sets to be pre-registered and associated with source URLs **before** the\n * `<md-icon />` directives are compiled.\n *\n * If using font-icons, the developer is responsible for loading the fonts.\n *\n * If using SVGs, loading of the actual svg files are deferred to on-demand requests and are loaded\n * internally by the `$mdIcon` service using the `$templateRequest` service. When an SVG is\n * requested by name/ID, the `$mdIcon` service searches its registry for the associated source URL;\n * that URL is used to on-demand load and parse the SVG dynamically.\n *\n * The `$templateRequest` service expects the icons source to be loaded over trusted URLs.<br/>\n * This means, when loading icons from an external URL, you have to trust the URL in the\n * `$sceDelegateProvider`.\n *\n * <hljs lang=\"js\">\n *   app.config(function($sceDelegateProvider) {\n *     $sceDelegateProvider.trustedResourceUrlList([\n *       // Adding 'self' to the allow-list, will allow requests from the current origin.\n *       'self',\n *       // Using double asterisks here, will allow all URLs to load.\n *       // However, we recommend only specifying the given domain you want to allow.\n *       '**'\n *     ]);\n *   });\n * </hljs>\n *\n * Read more about the [$sceDelegateProvider](https://docs.angularjs.org/api/ng/provider/$sceDelegateProvider).\n *\n * **Notice:** Most font-icon libraries do not support ligatures (for example `fontawesome`).<br/>\n *  In such cases you are not able to use the icon's ligature name - Like so:\n *\n *  <hljs lang=\"html\">\n *    <md-icon md-font-set=\"fa\">fa-bell</md-icon>\n *  </hljs>\n *\n * You should instead use the given unicode, instead of the ligature name.\n *\n * <p ng-hide=\"true\"> ##// Notice we can't use a hljs element here, because the characters will be escaped.</p>\n *  ```html\n *    <md-icon md-font-set=\"fa\">&#xf0f3</md-icon>\n *  ```\n *\n * All unicode ligatures are prefixed with the `&#x` string.\n *\n * @usage\n * <hljs lang=\"js\">\n *   app.config(function($mdIconProvider) {\n *\n *     // Configure URLs for icons specified by [set:]id.\n *     $mdIconProvider\n *       .defaultFontSet( 'fa' )                   // This sets our default fontset className.\n *       .defaultIconSet('my/app/icons.svg')       // Register a default set of SVG icons\n *       .iconSet('social', 'my/app/social.svg')   // Register a named icon set of SVGs\n *       .icon('android', 'my/app/android.svg')    // Register a specific icon (by name)\n *       .icon('work:chair', 'my/app/chair.svg');  // Register icon in a specific set\n *   });\n * </hljs>\n *\n * SVG icons and icon sets can be easily pre-loaded and cached using either (a) a build process or\n * (b) a runtime **startup** process (shown below):\n *\n * <hljs lang=\"js\">\n *   app.config(function($mdIconProvider) {\n *\n *     // Register a default set of SVG icon definitions\n *     $mdIconProvider.defaultIconSet('my/app/icons.svg')\n *   })\n *   .run(function($templateRequest) {\n *\n *     // Pre-fetch icons sources by URL and cache in the $templateCache...\n *     // subsequent $templateRequest calls will look there first.\n *     var urls = [ 'imy/app/icons.svg', 'img/icons/android.svg'];\n *\n *     angular.forEach(urls, function(url) {\n *       $templateRequest(url);\n *     });\n *   });\n *\n * </hljs>\n *\n * > <b>Note:</b> The loaded SVG data is subsequently cached internally for future requests.\n */\n\n/**\n * @ngdoc method\n * @name $mdIconProvider#icon\n *\n * @description\n * Register a source URL for a specific icon name; the name may include optional 'icon set' name\n * prefix. These icons will later be retrieved from the cache using `$mdIcon(<icon name>)`.\n *\n * @param {string} id Icon name/id used to register the icon\n * @param {string} url specifies the external location for the data file. Used internally by\n *  `$templateRequest` to load the data or as part of the lookup in `$templateCache` if pre-loading\n *  was configured.\n * @param {number=} viewBoxSize Sets the width and height the icon's viewBox.\n *  It is ignored for icons with an existing viewBox. Default size is 24.\n *\n * @returns {obj} an `$mdIconProvider` reference; used to support method call chains for the API\n *\n * @usage\n * <hljs lang=\"js\">\n *   app.config(function($mdIconProvider) {\n *\n *     // Configure URLs for icons specified by [set:]id.\n *     $mdIconProvider\n *       .icon('android', 'my/app/android.svg')    // Register a specific icon (by name)\n *       .icon('work:chair', 'my/app/chair.svg');  // Register icon in a specific set\n *   });\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name $mdIconProvider#iconSet\n *\n * @description\n * Register a source URL for a 'named' set of icons; group of SVG definitions where each definition\n * has an icon id. Individual icons can be subsequently retrieved from this cached set using\n * `$mdIcon(<icon set name>:<icon name>)`\n *\n * @param {string} id Icon name/id used to register the iconset\n * @param {string} url specifies the external location for the data file. Used internally by\n * `$templateRequest` to load the data or as part of the lookup in `$templateCache` if pre-loading\n * was configured.\n * @param {number=} viewBoxSize Sets the width and height of the viewBox of all icons in the set.\n * It is ignored for icons with an existing viewBox. All icons in the icon set should be the same size.\n * Default value is 24.\n *\n * @returns {obj} an `$mdIconProvider` reference; used to support method call chains for the API\n *\n * @usage\n * <hljs lang=\"js\">\n *   app.config(function($mdIconProvider) {\n *\n *     // Configure URLs for icons specified by [set:]id.\n *     $mdIconProvider\n *       .iconSet('social', 'my/app/social.svg');   // Register a named icon set\n *   });\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name $mdIconProvider#defaultIconSet\n *\n * @description\n * Register a source URL for the default 'named' set of icons. Unless explicitly registered,\n * subsequent lookups of icons will fail over to search this 'default' icon set.\n * Icon can be retrieved from this cached, default set using `$mdIcon(<name>)`\n *\n * @param {string} url specifies the external location for the data file. Used internally by\n * `$templateRequest` to load the data or as part of the lookup in `$templateCache` if pre-loading\n * was configured.\n * @param {number=} viewBoxSize Sets the width and height of the viewBox of all icons in the set.\n * It is ignored for icons with an existing viewBox. All icons in the icon set should be the same\n * size. Default value is 24.\n *\n * @returns {Object} an `$mdIconProvider` reference; used to support method call chains for the API\n *\n * @usage\n * <hljs lang=\"js\">\n *   app.config(function($mdIconProvider) {\n *\n *     // Configure URLs for icons specified by [set:]id.\n *     $mdIconProvider\n *       .defaultIconSet('my/app/social.svg');   // Register a default icon set\n *   });\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name $mdIconProvider#defaultFontSet\n *\n * @description\n * When using Font-Icons, AngularJS Material assumes the the Material Design icons will be used and\n * automatically configures the default `font-set == 'material-icons'`. Note that the font-set\n * references the font-icon library class style that should be applied to the `<md-icon>`.\n *\n * Configuring the default means that the attributes\n * `md-font-set=\"material-icons\"` or `class=\"material-icons\"` do not need to be explicitly declared\n * on the `<md-icon>` markup.\n *\n * For example:<br/>\n * `<md-icon>face</md-icon>` will render as `<span class=\"material-icons\">face</span>`,<br/>\n * and<br/>\n * `<md-icon md-font-set=\"fa\">face</md-icon>` will render as `<span class=\"fa\">face</span>`\n *\n * @param {string} name Name of the font-library style that should be applied to the md-icon DOM\n *  element.\n *\n * @usage\n * <hljs lang=\"js\">\n *   app.config(function($mdIconProvider) {\n *     $mdIconProvider.defaultFontSet('fa');\n *   });\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name $mdIconProvider#fontSet\n *\n * @description\n * When using a font-set for `<md-icon>` you must specify the correct font classname in the\n * `md-font-set` attribute. If the font-set className is really long, your markup may become\n * cluttered... an easy solution is to define an `alias` for your font-set:\n *\n * @param {string} alias Alias name of the specified font-set.\n * @param {string} className Name of the class for the font-set.\n *\n * @usage\n * <hljs lang=\"js\">\n *   app.config(function($mdIconProvider) {\n *     // In this case, we set an alias for the `material-icons` font-set.\n *     $mdIconProvider.fontSet('md', 'material-icons');\n *   });\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name $mdIconProvider#defaultViewBoxSize\n *\n * @description\n * While `<md-icon>` markup can also be styled with sizing CSS, this method configures\n * the default width **and** height used for all icons; unless overridden by specific CSS.\n * The default sizing is (`24px`, `24px`).\n * @param {number=} viewBoxSize Sets the width and height of the viewBox for an icon or an icon set.\n * All icons in a set should be the same size. The default value is 24.\n *\n * @returns {Object} an `$mdIconProvider` reference; used to support method call chains for the API\n *\n * @usage\n * <hljs lang=\"js\">\n *   app.config(function($mdIconProvider) {\n *\n *     // Configure URLs for icons specified by [set:]id.\n *     $mdIconProvider\n *       .defaultViewBoxSize(36);   // Register a default icon size (width == height)\n *   });\n * </hljs>\n */\n\nvar config = {\n  defaultViewBoxSize: 24,\n  defaultFontSet: 'material-icons',\n  fontSets: []\n};\n\nfunction MdIconProvider() {\n}\n\nMdIconProvider.prototype = {\n  icon: function(id, url, viewBoxSize) {\n    if (id.indexOf(':') == -1) id = '$default:' + id;\n\n    config[id] = new ConfigurationItem(url, viewBoxSize);\n    return this;\n  },\n\n  iconSet: function(id, url, viewBoxSize) {\n    config[id] = new ConfigurationItem(url, viewBoxSize);\n    return this;\n  },\n\n  defaultIconSet: function(url, viewBoxSize) {\n    var setName = '$default';\n\n    if (!config[setName]) {\n      config[setName] = new ConfigurationItem(url, viewBoxSize);\n    }\n\n    config[setName].viewBoxSize = viewBoxSize || config.defaultViewBoxSize;\n\n    return this;\n  },\n\n  defaultViewBoxSize: function(viewBoxSize) {\n    config.defaultViewBoxSize = viewBoxSize;\n    return this;\n  },\n\n  /**\n   * Register an alias name associated with a font-icon library style ;\n   */\n  fontSet: function fontSet(alias, className) {\n    config.fontSets.push({\n      alias: alias,\n      fontSet: className || alias\n    });\n    return this;\n  },\n\n  /**\n   * Specify a default style name associated with a font-icon library\n   * fallback to Material Icons.\n   *\n   */\n  defaultFontSet: function defaultFontSet(className) {\n    config.defaultFontSet = !className ? '' : className;\n    return this;\n  },\n\n  defaultIconSize: function defaultIconSize(iconSize) {\n    config.defaultIconSize = iconSize;\n    return this;\n  },\n\n  $get: ['$templateRequest', '$q', '$log', '$mdUtil', '$sce', function($templateRequest, $q, $log, $mdUtil, $sce) {\n    return MdIconService(config, $templateRequest, $q, $log, $mdUtil, $sce);\n  }]\n};\n\n  /**\n   * Configuration item stored in the Icon registry; used for lookups\n   * to load if not already cached in the `loaded` cache\n   * @param {string} url\n   * @param {=number} viewBoxSize\n   * @constructor\n   */\n  function ConfigurationItem(url, viewBoxSize) {\n    this.url = url;\n    this.viewBoxSize = viewBoxSize || config.defaultViewBoxSize;\n  }\n\n/**\n * @ngdoc service\n * @name $mdIcon\n * @module material.components.icon\n *\n * @description\n * The `$mdIcon` service is a function used to lookup SVG icons.\n *\n * @param {string} id Query value for a unique Id or URL. If the argument is a URL, then the service will retrieve the icon element\n * from its internal cache or load the icon and cache it first. If the value is not a URL-type string, then an ID lookup is\n * performed. The Id may be a unique icon ID or may include an iconSet ID prefix.\n *\n * For the **id** query to work properly, this means that all id-to-URL mappings must have been previously configured\n * using the `$mdIconProvider`.\n *\n * @returns {angular.$q.Promise} A promise that gets resolved to a clone of the initial SVG DOM element; which was\n * created from the SVG markup in the SVG data file. If an error occurs (e.g. the icon cannot be found) the promise\n * will get rejected.\n *\n * @usage\n * <hljs lang=\"js\">\n * function SomeDirective($mdIcon) {\n *\n *   // See if the icon has already been loaded, if not then lookup the icon from the\n *   // registry cache, load and cache it for future requests.\n *   // NOTE: Non-URL queries require configuration with $mdIconProvider.\n *   $mdIcon('android').then(function(iconEl)    { element.append(iconEl); });\n *   $mdIcon('work:chair').then(function(iconEl) { element.append(iconEl); });\n *\n *   // Load and cache the external SVG using a URL.\n *   $mdIcon('img/icons/android.svg').then(function(iconEl) {\n *     element.append(iconEl);\n *   });\n * };\n * </hljs>\n *\n * > <b>Note:</b> The `<md-icon>` directive internally uses the `$mdIcon` service to query, load,\n *   and instantiate SVG DOM elements.\n */\n\n/* @ngInject */\nfunction MdIconService(config, $templateRequest, $q, $log, $mdUtil, $sce) {\n  var iconCache = {};\n  var svgCache = {};\n  var urlRegex = /[-\\w@:%+.~#?&//=]{2,}\\.[a-z]{2,4}\\b(\\/[-\\w@:%+.~#?&//=]*)?/i;\n  var dataUrlRegex = /^data:image\\/svg\\+xml[\\s*;\\w\\-=]*?(base64)?,(.*)$/i;\n\n  Icon.prototype = {clone: cloneSVG, prepare: prepareAndStyle};\n  getIcon.fontSet = findRegisteredFontSet;\n\n  // Publish service...\n  return getIcon;\n\n  /**\n   * Actual $mdIcon service is essentially a lookup function\n   * @param {*} id $sce trust wrapper over a URL string, URL, icon registry id, or icon set id\n   * @returns {angular.$q.Promise}\n   */\n  function getIcon(id) {\n    id = id || '';\n\n    // If the \"id\" provided is not a string, the only other valid value is a $sce trust wrapper\n    // over a URL string. If the value is not trusted, this will intentionally throw an error\n    // because the user is attempted to use an unsafe URL, potentially opening themselves up\n    // to an XSS attack.\n    if (!angular.isString(id)) {\n      id = $sce.getTrustedUrl(id);\n    }\n\n    // If already loaded and cached, use a clone of the cached icon.\n    // Otherwise either load by URL, or lookup in the registry and then load by URL, and cache.\n\n    if (iconCache[id]) {\n      return $q.when(transformClone(iconCache[id]));\n    }\n\n    if (urlRegex.test(id) || dataUrlRegex.test(id)) {\n      return loadByURL(id).then(cacheIcon(id));\n    }\n\n    if (id.indexOf(':') === -1) {\n      id = '$default:' + id;\n    }\n\n    var load = config[id] ? loadByID : loadFromIconSet;\n    return load(id)\n      .then(cacheIcon(id));\n  }\n\n  /**\n   * Lookup a registered fontSet style using its alias.\n   * @param {string} alias used to lookup the alias in the array of fontSets\n   * @returns {*} matching fontSet or the defaultFontSet if that alias does not match\n   */\n  function findRegisteredFontSet(alias) {\n    var useDefault = angular.isUndefined(alias) || !(alias && alias.length);\n    if (useDefault) {\n      return config.defaultFontSet;\n    }\n\n    var result = alias;\n    angular.forEach(config.fontSets, function(fontSet) {\n      if (fontSet.alias === alias) {\n        result = fontSet.fontSet || result;\n      }\n    });\n\n    return result;\n  }\n\n  /**\n   * @param {!Icon} cacheElement cached icon from the iconCache\n   * @returns {Icon} cloned Icon element with unique ids\n   */\n  function transformClone(cacheElement) {\n    var clone = cacheElement.clone();\n    var newUid = $mdUtil.nextUid();\n    var cacheSuffix, svgUrlQuerySelector, i, xlinkHrefValue;\n    // These are SVG attributes that can reference element ids.\n    var svgUrlAttributes = [\n      'clip-path', 'color-profile', 'cursor', 'fill', 'filter', 'href', 'marker-start',\n      'marker-mid', 'marker-end', 'mask', 'stroke', 'style', 'vector-effect'\n    ];\n    var isIeSvg = clone.innerHTML === undefined;\n\n    // Verify that the newUid only contains a number and not some XSS content.\n    if (!isFinite(Number(newUid))) {\n      throw new Error('Unsafe and unexpected non-number result from $mdUtil.nextUid().');\n    }\n    cacheSuffix = '_cache' + newUid;\n\n    // For each cached icon, we need to modify the id attributes and references.\n    // This is needed because SVG ids are treated as normal DOM ids and should not be duplicated on\n    // the page.\n    if (clone.id) {\n      clone.id += cacheSuffix;\n    }\n\n    // Do as much as possible with querySelectorAll as it provides much greater performance\n    // than RegEx against serialized DOM.\n    angular.forEach(clone.querySelectorAll('[id]'), function(descendantElem) {\n      svgUrlQuerySelector = '';\n      for (i = 0; i < svgUrlAttributes.length; i++) {\n        svgUrlQuerySelector += '[' + svgUrlAttributes[i] + '=\"url(#' + descendantElem.id + ')\"]';\n        if (i + 1 < svgUrlAttributes.length) {\n          svgUrlQuerySelector += ', ';\n        }\n      }\n      // Append the cacheSuffix to references of the element's id within url(#id) calls.\n      angular.forEach(clone.querySelectorAll(svgUrlQuerySelector), function(refItem) {\n        updateSvgIdReferences(descendantElem, refItem, isIeSvg, newUid);\n      });\n      // Handle usages of url(#id) in the SVG's stylesheets\n      angular.forEach(clone.querySelectorAll('style'), function(refItem) {\n        updateSvgIdReferences(descendantElem, refItem, isIeSvg, newUid);\n      });\n\n      // Update ids referenced by the deprecated (in SVG v2) xlink:href XML attribute. The now\n      // preferred href attribute is handled above. However, this non-standard XML namespaced\n      // attribute cannot be handled in the same way. Explanation of this query selector here:\n      // https://stackoverflow.com/q/23034283/633107.\n      angular.forEach(clone.querySelectorAll('[*|href]:not([href])'), function(refItem) {\n        xlinkHrefValue = refItem.getAttribute('xlink:href');\n        if (xlinkHrefValue) {\n          xlinkHrefValue = xlinkHrefValue.replace(\"#\" + descendantElem.id, \"#\" + descendantElem.id + cacheSuffix);\n          refItem.setAttribute('xlink:href', xlinkHrefValue);\n        }\n      });\n\n      descendantElem.id += cacheSuffix;\n    });\n\n    return clone;\n  }\n\n  /**\n   * @param {Element} referencedElement element w/ id that needs to be updated\n   * @param {Element} referencingElement element that references the original id\n   * @param {boolean} isIeSvg true if we're dealing with an SVG in IE11, false otherwise\n   * @param {string} newUid the cache id to add as part of the cache suffix\n   */\n  function updateSvgIdReferences(referencedElement, referencingElement, isIeSvg, newUid) {\n    var svgElement, cacheSuffix;\n\n    // Verify that the newUid only contains a number and not some XSS content.\n    if (!isFinite(Number(newUid))) {\n      throw new Error('Unsafe and unexpected non-number result for newUid.');\n    }\n    cacheSuffix = '_cache' + newUid;\n\n    // outerHTML of SVG elements is not supported by IE11\n    if (isIeSvg) {\n      svgElement = $mdUtil.getOuterHTML(referencingElement);\n      svgElement = svgElement.replace(\"url(#\" + referencedElement.id + \")\",\n        \"url(#\" + referencedElement.id + cacheSuffix + \")\");\n      referencingElement.textContent = angular.element(svgElement)[0].innerHTML;\n    } else {\n      // This use of outerHTML should be safe from XSS attack since we are only injecting the\n      // cacheSuffix with content from $mdUtil.nextUid which we verify is a finite number above.\n      referencingElement.outerHTML = referencingElement.outerHTML.replace(\n        \"url(#\" + referencedElement.id + \")\",\n        \"url(#\" + referencedElement.id + cacheSuffix + \")\");\n    }\n  }\n\n  /**\n   * Prepare and cache the loaded icon for the specified `id`.\n   * @param {string} id icon cache id\n   * @returns {function(*=): *}\n   */\n  function cacheIcon(id) {\n\n    return function updateCache(icon) {\n      iconCache[id] = isIcon(icon) ? icon : new Icon(icon, config[id]);\n\n      return transformClone(iconCache[id]);\n    };\n  }\n\n  /**\n   * Lookup the configuration in the registry, if !registered throw an error\n   * otherwise load the icon [on-demand] using the registered URL.\n   * @param {string} id icon registry id\n   * @returns {angular.$q.Promise}\n   */\n  function loadByID(id) {\n    var iconConfig = config[id];\n    return loadByURL(iconConfig.url).then(function(icon) {\n      return new Icon(icon, iconConfig);\n    });\n  }\n\n  /**\n   * Loads the file as XML and uses querySelector( <id> ) to find the desired node...\n   * @param {string} id icon id in icon set\n   * @returns {angular.$q.Promise}\n   */\n  function loadFromIconSet(id) {\n    var setName = id.substring(0, id.lastIndexOf(':')) || '$default';\n    var iconSetConfig = config[setName];\n\n    return !iconSetConfig ? announceIdNotFound(id) : loadByURL(iconSetConfig.url).then(extractFromSet);\n\n    function extractFromSet(set) {\n      var iconName = id.slice(id.lastIndexOf(':') + 1);\n      var icon = set.querySelector('#' + iconName);\n      return icon ? new Icon(icon, iconSetConfig) : announceIdNotFound(id);\n    }\n\n    function announceIdNotFound(id) {\n      var msg = 'icon ' + id + ' not found';\n      $log.warn(msg);\n\n      return $q.reject(msg || id);\n    }\n  }\n\n  /**\n   * Load the icon by URL (may use the $templateCache).\n   * Extract the data for later conversion to Icon\n   * @param {string} url icon URL\n   * @returns {angular.$q.Promise}\n   */\n  function loadByURL(url) {\n    /* Load the icon from embedded data URL. */\n    function loadByDataUrl(url) {\n      var results = dataUrlRegex.exec(url);\n      var isBase64 = /base64/i.test(url);\n      var data = isBase64 ? window.atob(results[2]) : results[2];\n\n      return $q.when(angular.element(data)[0]);\n    }\n\n    /* Load the icon by URL using HTTP. */\n    function loadByHttpUrl(url) {\n      return $q(function(resolve, reject) {\n        // Catch HTTP or generic errors not related to incorrect icon IDs.\n        var announceAndReject = function(err) {\n            var msg = angular.isString(err) ? err : (err.message || err.data || err.statusText);\n            $log.warn(msg);\n            reject(err);\n          },\n          extractSvg = function(response) {\n            if (!svgCache[url]) {\n              svgCache[url] = angular.element('<div>').append(response)[0].querySelector('svg');\n            }\n            resolve(svgCache[url]);\n          };\n\n        $templateRequest(url, true).then(extractSvg, announceAndReject);\n      });\n    }\n\n    return dataUrlRegex.test(url)\n      ? loadByDataUrl(url)\n      : loadByHttpUrl(url);\n  }\n\n  /**\n   * Check target signature to see if it is an Icon instance.\n   * @param {Icon|Element} target\n   * @returns {boolean} true if the specified target is an Icon object, false otherwise.\n   */\n  function isIcon(target) {\n    return angular.isDefined(target.element) && angular.isDefined(target.config);\n  }\n\n  /**\n   * Define the Icon class\n   * @param {Element} el\n   * @param {=ConfigurationItem} config\n   * @constructor\n   */\n  function Icon(el, config) {\n    // If the node is a <symbol>, it won't be rendered so we have to convert it into <svg>.\n    if (el && el.tagName.toLowerCase() === 'symbol') {\n      var viewbox = el.getAttribute('viewBox');\n      // // Check if innerHTML is supported as IE11 does not support innerHTML on SVG elements.\n      if (el.innerHTML) {\n        el = angular.element('<svg xmlns=\"http://www.w3.org/2000/svg\">')\n          .html(el.innerHTML)[0];\n      } else {\n        el = angular.element('<svg xmlns=\"http://www.w3.org/2000/svg\">')\n          .append($mdUtil.getInnerHTML(el))[0];\n      }\n      if (viewbox) el.setAttribute('viewBox', viewbox);\n    }\n\n    if (el && el.tagName.toLowerCase() !== 'svg') {\n      el = angular.element(\n        '<svg xmlns=\"http://www.w3.org/2000/svg\">').append(el.cloneNode(true))[0];\n    }\n\n    // Inject the namespace if not available...\n    if (!el.getAttribute('xmlns')) {\n      el.setAttribute('xmlns', \"http://www.w3.org/2000/svg\");\n    }\n\n    this.element = el;\n    this.config = config;\n    this.prepare();\n  }\n\n  /**\n   *  Prepare the DOM element that will be cached in the\n   *  loaded iconCache store.\n   */\n  function prepareAndStyle() {\n    var viewBoxSize = this.config ? this.config.viewBoxSize : config.defaultViewBoxSize;\n    angular.forEach({\n      'fit': '',\n      'height': '100%',\n      'width': '100%',\n      'preserveAspectRatio': 'xMidYMid meet',\n      'viewBox': this.element.getAttribute('viewBox') || ('0 0 ' + viewBoxSize + ' ' + viewBoxSize),\n      'focusable': false // Disable IE11s default behavior to make SVGs focusable\n    }, function(val, attr) {\n      this.element.setAttribute(attr, val);\n    }, this);\n  }\n\n  /**\n   * Clone the Icon DOM element.\n   */\n  function cloneSVG() {\n    // If the element or any of its children have a style attribute, then a CSP policy without\n    // 'unsafe-inline' in the style-src directive, will result in a violation.\n    return this.element.cloneNode(true);\n  }\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.input\n */\nmdInputContainerDirective.$inject = [\"$mdTheming\", \"$parse\", \"$$rAF\"];\ninputTextareaDirective.$inject = [\"$mdUtil\", \"$window\", \"$mdAria\", \"$timeout\", \"$mdGesture\"];\nmdMaxlengthDirective.$inject = [\"$animate\", \"$mdUtil\"];\nplaceholderDirective.$inject = [\"$compile\"];\nngMessageDirective.$inject = [\"$mdUtil\"];\nmdSelectOnFocusDirective.$inject = [\"$document\", \"$timeout\"];\nmdInputInvalidMessagesAnimation.$inject = [\"$$AnimateRunner\", \"$animateCss\", \"$mdUtil\"];\nngMessagesAnimation.$inject = [\"$$AnimateRunner\", \"$animateCss\", \"$mdUtil\"];\nngMessageAnimation.$inject = [\"$$AnimateRunner\", \"$animateCss\", \"$mdUtil\", \"$log\"];\nvar inputModule = angular.module('material.components.input', [\n    'material.core'\n  ])\n  .directive('mdInputContainer', mdInputContainerDirective)\n  .directive('label', labelDirective)\n  .directive('input', inputTextareaDirective)\n  .directive('textarea', inputTextareaDirective)\n  .directive('mdMaxlength', mdMaxlengthDirective)\n  .directive('placeholder', placeholderDirective)\n  .directive('ngMessages', ngMessagesDirective)\n  .directive('ngMessage', ngMessageDirective)\n  .directive('ngMessageExp', ngMessageDirective)\n  .directive('mdSelectOnFocus', mdSelectOnFocusDirective)\n\n  .animation('.md-input-invalid', mdInputInvalidMessagesAnimation)\n  .animation('.md-input-messages-animation', ngMessagesAnimation)\n  .animation('.md-input-message-animation', ngMessageAnimation);\n\n// If we are running inside of tests; expose some extra services so that we can test them\nif (window._mdMocksIncluded) {\n  inputModule.service('$$mdInput', function() {\n    return {\n      // special accessor to internals... useful for testing\n      messages: {\n        getElement  : getMessagesElement\n      }\n    };\n  })\n\n  // Register a service for each animation so that we can easily inject them into unit tests\n  .service('mdInputInvalidAnimation', mdInputInvalidMessagesAnimation)\n  .service('mdInputMessagesAnimation', ngMessagesAnimation)\n  .service('mdInputMessageAnimation', ngMessageAnimation);\n}\n\n/**\n * @ngdoc directive\n * @name mdInputContainer\n * @module material.components.input\n *\n * @restrict E\n *\n * @description\n * `<md-input-container>` is the parent of any input or textarea element. It can also optionally\n * wrap `<md-select>` elements so that they will be formatted for use in a form.\n *\n * Input and textarea elements will not behave properly unless the md-input-container parent is\n * provided.\n *\n * A single `<md-input-container>` should contain only one `<input>` or `<md-select>` element,\n * otherwise it will throw an error.\n *\n * <b>Exception:</b> Hidden inputs (`<input type=\"hidden\" />`) are ignored and will not throw an\n * error, so you may combine these with other inputs.\n *\n * <b>Note:</b> When using `ngMessages` with your input element, make sure the message and container\n * elements are *block* elements, otherwise animations applied to the messages will not look as\n * intended. Either use a `div` and apply the `ng-message` and `ng-messages` classes respectively,\n * or use the `md-block` class on your element.\n *\n * @param {expression=} md-is-error When the given expression evaluates to `true`, the input\n *   container will go into the error state. Defaults to erroring if the input has been touched and\n *   is invalid.\n * @param {boolean=} md-no-float When present, `placeholder` attributes on the input will not be\n *   converted to floating labels.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-input-container>\n *   <label>Username</label>\n *   <input type=\"text\" ng-model=\"user.name\">\n * </md-input-container>\n *\n * <md-input-container>\n *   <label>Description</label>\n *   <textarea ng-model=\"user.description\"></textarea>\n * </md-input-container>\n *\n * <md-input-container>\n *   <md-select ng-model=\"user.state\" placeholder=\"State of Residence\">\n *     <md-option ng-value=\"state\" ng-repeat=\"state in states\">{{ state }}</md-option>\n *   </md-select>\n * </md-input-container>\n * </hljs>\n *\n * <h3>When disabling floating labels</h3>\n * <hljs lang=\"html\">\n * <md-input-container md-no-float>\n *   <input type=\"text\" placeholder=\"Non-Floating Label\">\n * </md-input-container>\n * </hljs>\n *\n * <h3>Aligning Form Elements</h3>\n * Wrap your form elements with the `md-inline-form` class in order to align them horizontally\n * within a form.\n *\n * <hljs lang=\"html\">\n * <form class=\"md-inline-form\">\n *   <md-input-container>\n *     <label>Username</label>\n *     <input type=\"text\" ng-model=\"user.name\">\n *   </md-input-container>\n *\n *   <md-input-container>\n *     <label>Description</label>\n *     <textarea ng-model=\"user.description\"></textarea>\n *   </md-input-container>\n *\n *   <md-input-container>\n *     <label>State of Residence</label>\n *     <md-select ng-model=\"user.state\">\n *       <md-option ng-value=\"state\" ng-repeat=\"state in states\">{{ state }}</md-option>\n *     </md-select>\n *   </md-input-container>\n *\n *   <md-input-container>\n *     <label>Enter date</label>\n *     <md-datepicker ng-model=\"user.submissionDate\"></md-datepicker>\n *   </md-input-container>\n *\n *   <md-input-container>\n *     <md-checkbox ng-model=\"user.licenseAccepted\">\n *       I agree to the license terms.\n *     </md-checkbox>\n *   </md-input-container>\n * </form>\n * </hljs>\n */\nfunction mdInputContainerDirective($mdTheming, $parse, $$rAF) {\n\n  ContainerCtrl.$inject = [\"$scope\", \"$element\", \"$attrs\", \"$animate\"];\n  var INPUT_TAGS = ['INPUT', 'TEXTAREA', 'SELECT', 'MD-SELECT'];\n\n  var LEFT_SELECTORS = INPUT_TAGS.reduce(function(selectors, isel) {\n    return selectors.concat(['md-icon ~ ' + isel, '.md-icon ~ ' + isel]);\n  }, []).join(\",\");\n\n  var RIGHT_SELECTORS = INPUT_TAGS.reduce(function(selectors, isel) {\n    return selectors.concat([isel + ' ~ md-icon', isel + ' ~ .md-icon']);\n  }, []).join(\",\");\n\n  return {\n    restrict: 'E',\n    compile: compile,\n    controller: ContainerCtrl\n  };\n\n  function compile(tElement) {\n    // Check for both a left & right icon\n    var hasLeftIcon = tElement[0].querySelector(LEFT_SELECTORS);\n    var hasRightIcon = tElement[0].querySelector(RIGHT_SELECTORS);\n\n    return function postLink(scope, element) {\n      $mdTheming(element);\n\n      if (hasLeftIcon || hasRightIcon) {\n        // When accessing the element's contents synchronously, they may not be defined yet because\n        // of the use of ng-if. If we wait one frame, then the element should be there if the ng-if\n        // resolves to true.\n        $$rAF(function() {\n          // Handle the case where the md-icon element is initially hidden via ng-if from #9529.\n          // We don't want to preserve the space for the icon in the case of ng-if, like we do for\n          // ng-show.\n          // Note that we can't use the same selectors from above because the elements are no longer\n          // siblings for textareas at this point due to the insertion of the md-resize-wrapper.\n          var iconNotRemoved = element[0].querySelector('md-icon') ||\n            element[0].querySelector('.md-icon');\n          if (hasLeftIcon && iconNotRemoved) {\n            element.addClass('md-icon-left');\n          }\n          if (hasRightIcon && iconNotRemoved) {\n            element.addClass('md-icon-right');\n          }\n        });\n      }\n    };\n  }\n\n  function ContainerCtrl($scope, $element, $attrs, $animate) {\n    var self = this;\n\n    $element.addClass('md-auto-horizontal-margin');\n\n    self.isErrorGetter = $attrs.mdIsError && $parse($attrs.mdIsError);\n\n    self.delegateClick = function() {\n      self.input.focus();\n    };\n    self.element = $element;\n    self.setFocused = function(isFocused) {\n      $element.toggleClass('md-input-focused', !!isFocused);\n    };\n    self.setHasValue = function(hasValue) {\n      $element.toggleClass('md-input-has-value', !!hasValue);\n    };\n    self.setHasPlaceholder = function(hasPlaceholder) {\n      $element.toggleClass('md-input-has-placeholder', !!hasPlaceholder);\n    };\n    self.setInvalid = function(isInvalid) {\n      if (isInvalid) {\n        $animate.addClass($element, 'md-input-invalid');\n      } else {\n        $animate.removeClass($element, 'md-input-invalid');\n      }\n    };\n    $scope.$watch(function() {\n      return self.label && self.input;\n    }, function(hasLabelAndInput) {\n      if (hasLabelAndInput && !self.label.attr('for')) {\n        self.label.attr('for', self.input.attr('id'));\n      }\n    });\n  }\n}\n\nfunction labelDirective() {\n  return {\n    restrict: 'E',\n    require: '^?mdInputContainer',\n    link: function(scope, element, attr, containerCtrl) {\n      if (!containerCtrl || attr.mdNoFloat || element.hasClass('md-container-ignore')) return;\n\n      containerCtrl.label = element;\n      scope.$on('$destroy', function() {\n        containerCtrl.label = null;\n      });\n    }\n  };\n}\n\n/**\n * @ngdoc directive\n * @name mdInput\n * @restrict E\n * @module material.components.input\n *\n * @description\n * You can use any `<input>` or `<textarea>` element as a child of an `<md-input-container>`. This\n * allows you to build complex forms for data entry.\n *\n * When the input is required and uses a floating label, then the label will automatically contain\n * an asterisk (`*`).<br/>\n * This behavior can be disabled by using the `md-no-asterisk` attribute.\n *\n * @param {number=} md-maxlength The maximum number of characters allowed in this input. If this is\n *   specified, a character counter will be shown underneath the input.<br/><br/>\n *   The purpose of **`md-maxlength`** is exactly to show the max length counter text. If you don't\n *   want the counter text and only need \"plain\" validation, you can use the \"simple\" `ng-maxlength`\n *   or maxlength attributes.<br/><br/>\n * @param {boolean=} ng-trim If set to false, the input text will be not trimmed automatically.\n *     Defaults to true.\n * @param {string=} aria-label Aria-label is required when no label is present.  A warning message\n *   will be logged in the console if not present.\n * @param {string=} placeholder An alternative approach to using aria-label when the label is not\n *   PRESENT. The placeholder text is copied to the aria-label attribute.\n * @param {boolean=} md-no-autogrow When present, textareas will not grow automatically.\n * @param {boolean=} md-no-asterisk When present, an asterisk will not be appended to the inputs\n *   floating label.\n * @param {boolean=} md-no-resize Disables the textarea resize handle.\n * @param {number=} max-rows The maximum amount of rows for a textarea.\n * @param {boolean=} md-detect-hidden When present, textareas will be sized properly when they are\n *   revealed after being hidden. This is off by default for performance reasons because it\n *   guarantees a reflow every digest cycle.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-input-container>\n *   <label>Color</label>\n *   <input type=\"text\" ng-model=\"color\" required md-maxlength=\"10\">\n * </md-input-container>\n * </hljs>\n *\n * <h3>With Errors</h3>\n *\n * `md-input-container` also supports errors using the standard `ng-messages` directives and\n * animates the messages when they become visible using from the `ngEnter`/`ngLeave` events or\n * the `ngShow`/`ngHide` events.\n *\n * By default, the messages will be hidden until the input is in an error state. This is based off\n * of the `md-is-error` expression of the `md-input-container`. This gives the user a chance to\n * fill out the form before the errors become visible.\n *\n * <hljs lang=\"html\">\n * <form name=\"colorForm\">\n *   <md-input-container>\n *     <label>Favorite Color</label>\n *     <input name=\"favoriteColor\" ng-model=\"favoriteColor\" required>\n *     <div ng-messages=\"colorForm.favoriteColor.$error\">\n *       <div ng-message=\"required\">This is required!</div>\n *     </div>\n *   </md-input-container>\n * </form>\n * </hljs>\n *\n * We automatically disable this auto-hiding functionality if you provide any of the following\n * visibility directives on the `ng-messages` container:\n *\n *  - `ng-if`\n *  - `ng-show`/`ng-hide`\n *  - `ng-switch-when`/`ng-switch-default`\n *\n * You can also disable this functionality manually by adding the `md-auto-hide=\"false\"` expression\n * to the `ng-messages` container. This may be helpful if you always want to see the error messages\n * or if you are building your own visibility directive.\n *\n * _<b>Note:</b> The `md-auto-hide` attribute is a static string that is  only checked upon\n * initialization of the `ng-messages` directive to see if it equals the string `false`._\n *\n * <hljs lang=\"html\">\n * <form name=\"userForm\">\n *   <md-input-container>\n *     <label>Last Name</label>\n *     <input name=\"lastName\" ng-model=\"lastName\" required md-maxlength=\"10\" minlength=\"4\">\n *     <div ng-messages=\"userForm.lastName.$error\" ng-show=\"userForm.lastName.$dirty\">\n *       <div ng-message=\"required\">This is required!</div>\n *       <div ng-message=\"md-maxlength\">That's too long!</div>\n *       <div ng-message=\"minlength\">That's too short!</div>\n *     </div>\n *   </md-input-container>\n *   <md-input-container>\n *     <label>Biography</label>\n *     <textarea name=\"bio\" ng-model=\"biography\" required md-maxlength=\"150\"></textarea>\n *     <div ng-messages=\"userForm.bio.$error\" ng-show=\"userForm.bio.$dirty\">\n *       <div ng-message=\"required\">This is required!</div>\n *       <div ng-message=\"md-maxlength\">That's too long!</div>\n *     </div>\n *   </md-input-container>\n *   <md-input-container>\n *     <input aria-label='title' ng-model='title'>\n *   </md-input-container>\n *   <md-input-container>\n *     <input placeholder='title' ng-model='title'>\n *   </md-input-container>\n * </form>\n * </hljs>\n *\n * <h3>Notes</h3>\n *\n * - Requires [ngMessages](https://docs.angularjs.org/api/ngMessages).\n * - Behaves like the [AngularJS input directive](https://docs.angularjs.org/api/ng/directive/input).\n *\n * The `md-input` and `md-input-container` directives use very specific positioning to achieve the\n * error animation effects. Therefore, it is *not* advised to use the Layout system inside of the\n * `<md-input-container>` tags. Instead, use relative or absolute positioning.\n *\n *\n * <h3>Textarea directive</h3>\n * The `textarea` element within a `md-input-container` has the following specific behavior:\n * - By default the `textarea` grows as the user types. This can be disabled via the `md-no-autogrow`\n * attribute.\n * - If a `textarea` has the `rows` attribute, it will treat the `rows` as the minimum height and will\n * continue growing as the user types. For example a textarea with `rows=\"3\"` will be 3 lines of text\n * high initially. If no rows are specified, the directive defaults to 1.\n * - The textarea's height gets set on initialization, as well as while the user is typing. In certain situations\n * (e.g. while animating) the directive might have been initialized, before the element got it's final height. In\n * those cases, you can trigger a resize manually by broadcasting a `md-resize-textarea` event on the scope.\n * - If you want a `textarea` to stop growing at a certain point, you can specify the `max-rows` attribute.\n * - The textarea's bottom border acts as a handle which users can drag, in order to resize the element vertically.\n * Once the user has resized a `textarea`, the autogrowing functionality becomes disabled. If you don't want a\n * `textarea` to be resizeable by the user, you can add the `md-no-resize` attribute.\n */\n\nfunction inputTextareaDirective($mdUtil, $window, $mdAria, $timeout, $mdGesture) {\n  return {\n    restrict: 'E',\n    require: ['^?mdInputContainer', '?ngModel', '?^form'],\n    link: postLink\n  };\n\n  function postLink(scope, element, attr, ctrls) {\n\n    var containerCtrl = ctrls[0];\n    var hasNgModel = !!ctrls[1];\n    var ngModelCtrl = ctrls[1] || $mdUtil.fakeNgModel();\n    var parentForm = ctrls[2];\n    var isReadonly = angular.isDefined(attr.readonly);\n    var mdNoAsterisk = $mdUtil.parseAttributeBoolean(attr.mdNoAsterisk);\n    var tagName = element[0].tagName.toLowerCase();\n\n\n    if (!containerCtrl) return;\n    if (attr.type === 'hidden') {\n      element.attr('aria-hidden', 'true');\n      return;\n    } else if (containerCtrl.input) {\n      if (containerCtrl.input[0].contains(element[0])) {\n        return;\n      } else {\n        throw new Error(\"<md-input-container> can only have *one* <input>, <textarea> or <md-select> child element!\");\n      }\n    }\n    containerCtrl.input = element;\n\n    setupAttributeWatchers();\n\n    // Add an error spacer div after our input to provide space for the char counter and any ng-messages\n    var errorsSpacer = angular.element('<div class=\"md-errors-spacer\">');\n    element.after(errorsSpacer);\n\n    var placeholderText = angular.isString(attr.placeholder) ? attr.placeholder.trim() : '';\n    if (!containerCtrl.label && !placeholderText.length) {\n      $mdAria.expect(element, 'aria-label');\n    }\n\n    element.addClass('md-input');\n    if (!element.attr('id')) {\n      element.attr('id', 'input_' + $mdUtil.nextUid());\n    }\n\n    // This works around a Webkit issue where number inputs, placed in a flexbox, that have\n    // a `min` and `max` will collapse to about 1/3 of their proper width. Please check #7349\n    // for more info. Also note that we don't override the `step` if the user has specified it,\n    // in order to prevent some unexpected behaviour.\n    if (tagName === 'input' && attr.type === 'number' && attr.min && attr.max && !attr.step) {\n      element.attr('step', 'any');\n    } else if (tagName === 'textarea') {\n      setupTextarea();\n    }\n\n    // If the input doesn't have an ngModel, it may have a static value. For that case,\n    // we have to do one initial check to determine if the container should be in the\n    // \"has a value\" state.\n    if (!hasNgModel) {\n      inputCheckValue();\n    }\n\n    var isErrorGetter = containerCtrl.isErrorGetter || function() {\n      return ngModelCtrl.$invalid && (ngModelCtrl.$touched || (parentForm && parentForm.$submitted));\n    };\n\n    scope.$watch(isErrorGetter, containerCtrl.setInvalid);\n\n    // When the developer uses the ngValue directive for the input, we have to observe the attribute, because\n    // AngularJS's ngValue directive is just setting the `value` attribute.\n    if (attr.ngValue) {\n      attr.$observe('value', inputCheckValue);\n    }\n\n    ngModelCtrl.$parsers.push(ngModelPipelineCheckValue);\n    ngModelCtrl.$formatters.push(ngModelPipelineCheckValue);\n\n    element.on('input', inputCheckValue);\n\n    if (!isReadonly) {\n      element\n        .on('focus', function(ev) {\n          $mdUtil.nextTick(function() {\n            containerCtrl.setFocused(true);\n          });\n        })\n        .on('blur', function(ev) {\n          $mdUtil.nextTick(function() {\n            containerCtrl.setFocused(false);\n            inputCheckValue();\n          });\n        });\n    }\n\n    scope.$on('$destroy', function() {\n      containerCtrl.setFocused(false);\n      containerCtrl.setHasValue(false);\n      containerCtrl.input = null;\n    });\n\n    /** Gets run through ngModel's pipeline and set the `has-value` class on the container. */\n    function ngModelPipelineCheckValue(arg) {\n      containerCtrl.setHasValue(!ngModelCtrl.$isEmpty(arg));\n      return arg;\n    }\n\n    function setupAttributeWatchers() {\n      if (containerCtrl.label) {\n        attr.$observe('required', function (value) {\n          // We don't need to parse the required value, it's always a boolean because of AngularJS'\n          // required directive.\n          if (containerCtrl.label) {\n            containerCtrl.label.toggleClass('md-required', value && !mdNoAsterisk);\n          }\n        });\n      }\n    }\n\n    function inputCheckValue() {\n      // An input's value counts if its length > 0,\n      // or if the input's validity state says it has bad input (eg string in a number input)\n      containerCtrl.setHasValue(element.val().length > 0 || (element[0].validity || {}).badInput);\n    }\n\n    function setupTextarea() {\n      var isAutogrowing = !attr.hasOwnProperty('mdNoAutogrow');\n\n      attachResizeHandle();\n\n      if (!isAutogrowing) return;\n\n      // Can't check if height was or not explicity set,\n      // so rows attribute will take precedence if present\n      var minRows = attr.hasOwnProperty('rows') ? parseInt(attr.rows) : NaN;\n      var maxRows = attr.hasOwnProperty('maxRows') ? parseInt(attr.maxRows) : NaN;\n      var scopeResizeListener = scope.$on('md-resize-textarea', growTextarea);\n      var lineHeight = null;\n      var node = element[0];\n\n      // This timeout is necessary, because the browser needs a little bit\n      // of time to calculate the `clientHeight` and `scrollHeight`.\n      $timeout(function() {\n        $mdUtil.nextTick(growTextarea);\n      }, 10, false);\n\n      // We could leverage ngModel's $parsers here, however it\n      // isn't reliable, because AngularJS trims the input by default,\n      // which means that growTextarea won't fire when newlines and\n      // spaces are added.\n      element.on('input', growTextarea);\n\n      // We should still use the $formatters, because they fire when\n      // the value was changed from outside the textarea.\n      if (hasNgModel) {\n        ngModelCtrl.$formatters.push(formattersListener);\n      }\n\n      if (!minRows) {\n        element.attr('rows', 1);\n      }\n\n      angular.element($window).on('resize', growTextarea);\n      scope.$on('$destroy', disableAutogrow);\n\n      function growTextarea() {\n        // temporarily disables element's flex so its height 'runs free'\n        element\n          .attr('rows', 1)\n          .css('height', 'auto')\n          .addClass('md-no-flex');\n\n        var height = getHeight();\n\n        if (!lineHeight) {\n          // offsetHeight includes padding which can throw off our value\n          var originalPadding = element[0].style.padding || '';\n          lineHeight = element.css('padding', 0).prop('offsetHeight');\n          element[0].style.padding = originalPadding;\n        }\n\n        if (minRows && lineHeight) {\n          height = Math.max(height, lineHeight * minRows);\n        }\n\n        if (maxRows && lineHeight) {\n          var maxHeight = lineHeight * maxRows;\n\n          if (maxHeight < height) {\n            element.attr('md-no-autogrow', '');\n            height = maxHeight;\n          } else {\n            element.removeAttr('md-no-autogrow');\n          }\n        }\n\n        if (lineHeight) {\n          element.attr('rows', Math.round(height / lineHeight));\n        }\n\n        element\n          .css('height', height + 'px')\n          .removeClass('md-no-flex');\n      }\n\n      function getHeight() {\n        var offsetHeight = node.offsetHeight;\n        var line = node.scrollHeight - offsetHeight;\n        return offsetHeight + Math.max(line, 0);\n      }\n\n      function formattersListener(value) {\n        $mdUtil.nextTick(growTextarea);\n        return value;\n      }\n\n      function disableAutogrow() {\n        if (!isAutogrowing) return;\n\n        isAutogrowing = false;\n        angular.element($window).off('resize', growTextarea);\n        scopeResizeListener && scopeResizeListener();\n        element\n          .attr('md-no-autogrow', '')\n          .off('input', growTextarea);\n\n        if (hasNgModel) {\n          var listenerIndex = ngModelCtrl.$formatters.indexOf(formattersListener);\n\n          if (listenerIndex > -1) {\n            ngModelCtrl.$formatters.splice(listenerIndex, 1);\n          }\n        }\n      }\n\n      function attachResizeHandle() {\n        if (attr.hasOwnProperty('mdNoResize')) return;\n\n        var handle = angular.element('<div class=\"md-resize-handle\"></div>');\n        var isDragging = false;\n        var dragStart = null;\n        var startHeight = 0;\n        var container = containerCtrl.element;\n        var dragGestureHandler = $mdGesture.register(handle, 'drag', { horizontal: false });\n\n\n        element.wrap('<div class=\"md-resize-wrapper\">').after(handle);\n        handle.on('mousedown', onMouseDown);\n\n        container\n          .on('$md.dragstart', onDragStart)\n          .on('$md.drag', onDrag)\n          .on('$md.dragend', onDragEnd);\n\n        scope.$on('$destroy', function() {\n          handle\n            .off('mousedown', onMouseDown)\n            .remove();\n\n          container\n            .off('$md.dragstart', onDragStart)\n            .off('$md.drag', onDrag)\n            .off('$md.dragend', onDragEnd);\n\n          dragGestureHandler();\n          handle = null;\n          container = null;\n          dragGestureHandler = null;\n        });\n\n        function onMouseDown(ev) {\n          ev.preventDefault();\n          isDragging = true;\n          dragStart = ev.clientY;\n          startHeight = parseFloat(element.css('height')) || element.prop('offsetHeight');\n        }\n\n        function onDragStart(ev) {\n          if (!isDragging) return;\n          ev.preventDefault();\n          disableAutogrow();\n          container.addClass('md-input-resized');\n        }\n\n        function onDrag(ev) {\n          if (!isDragging) return;\n\n          element.css('height', (startHeight + ev.pointer.distanceY) + 'px');\n        }\n\n        function onDragEnd(ev) {\n          if (!isDragging) return;\n          isDragging = false;\n          container.removeClass('md-input-resized');\n        }\n      }\n\n      // Attach a watcher to detect when the textarea gets shown.\n      if (attr.hasOwnProperty('mdDetectHidden')) {\n\n        var handleHiddenChange = function() {\n          var wasHidden = false;\n\n          return function() {\n            var isHidden = node.offsetHeight === 0;\n\n            if (isHidden === false && wasHidden === true) {\n              growTextarea();\n            }\n\n            wasHidden = isHidden;\n          };\n        }();\n\n        // Check every digest cycle whether the visibility of the textarea has changed.\n        // Queue up to run after the digest cycle is complete.\n        scope.$watch(function() {\n          $mdUtil.nextTick(handleHiddenChange, false);\n          return true;\n        });\n      }\n    }\n  }\n}\n\nfunction mdMaxlengthDirective($animate, $mdUtil) {\n  return {\n    restrict: 'A',\n    require: ['ngModel', '^mdInputContainer'],\n    link: postLink\n  };\n\n  function postLink(scope, element, attr, ctrls) {\n    var maxlength = parseInt(attr.mdMaxlength);\n    if (isNaN(maxlength)) maxlength = -1;\n    var ngModelCtrl = ctrls[0];\n    var containerCtrl = ctrls[1];\n    var charCountEl, errorsSpacer;\n    var ngTrim = angular.isDefined(attr.ngTrim) ? $mdUtil.parseAttributeBoolean(attr.ngTrim) : true;\n    var isPasswordInput = attr.type === 'password';\n\n    scope.$watch(attr.mdMaxlength, function(value) {\n      maxlength = value;\n    });\n\n    ngModelCtrl.$validators['md-maxlength'] = function(modelValue, viewValue) {\n      if (!angular.isNumber(maxlength) || maxlength < 0) {\n        return true;\n      }\n\n      // We always update the char count, when the modelValue has changed.\n      // Using the $validators for triggering the update works very well.\n      renderCharCount();\n\n      var elementVal = element.val() || viewValue;\n      if (elementVal === undefined || elementVal === null) {\n        elementVal = '';\n      }\n      elementVal = ngTrim && !isPasswordInput && angular.isString(elementVal) ? elementVal.trim() : elementVal;\n      // Force the value into a string since it may be a number,\n      // which does not have a length property.\n      return String(elementVal).length <= maxlength;\n    };\n\n    /**\n     * Override the default NgModelController $isEmpty check to take ng-trim, password inputs,\n     * etc. into account.\n     * @param value {*} the input's value\n     * @returns {boolean} true if the input's value should be considered empty, false otherwise\n     */\n    ngModelCtrl.$isEmpty = function(value) {\n      return calculateInputValueLength(value) === 0;\n    };\n\n    // Wait until the next tick to ensure that the input has setup the errors spacer where we will\n    // append our counter\n    $mdUtil.nextTick(function() {\n      errorsSpacer = angular.element(containerCtrl.element[0].querySelector('.md-errors-spacer'));\n      charCountEl = angular.element('<div class=\"md-char-counter\">');\n\n      // Append our character counter inside the errors spacer\n      errorsSpacer.append(charCountEl);\n\n      attr.$observe('ngTrim', function (value) {\n        ngTrim = angular.isDefined(value) ? $mdUtil.parseAttributeBoolean(value) : true;\n      });\n\n      scope.$watch(attr.mdMaxlength, function(value) {\n        if (angular.isNumber(value) && value > 0) {\n          if (!charCountEl.parent().length) {\n            $animate.enter(charCountEl, errorsSpacer);\n          }\n          renderCharCount();\n        } else {\n          $animate.leave(charCountEl);\n        }\n      });\n    });\n\n    /**\n     * Calculate the input value's length after coercing it to a string\n     * and trimming it if appropriate.\n     * @param value {*} the input's value\n     * @returns {number} calculated length of the input's value\n     */\n    function calculateInputValueLength(value) {\n      value = ngTrim && !isPasswordInput && angular.isString(value) ? value.trim() : value;\n      if (value === undefined || value === null) {\n        value = '';\n      }\n      return String(value).length;\n    }\n\n    function renderCharCount() {\n      // If we have not been initialized or appended to the body yet; do not render.\n      if (!charCountEl || !charCountEl.parent()) {\n        return;\n      }\n      // Force the value into a string since it may be a number,\n      // which does not have a length property.\n      charCountEl.text(calculateInputValueLength(element.val()) + ' / ' + maxlength);\n    }\n  }\n}\n\nfunction placeholderDirective($compile) {\n  return {\n    restrict: 'A',\n    require: '^^?mdInputContainer',\n    priority: 200,\n    link: {\n      // Note that we need to do this in the pre-link, as opposed to the post link, if we want to\n      // support data bindings in the placeholder. This is necessary, because we have a case where\n      // we transfer the placeholder value to the `<label>` and we remove it from the original `<input>`.\n      // If we did this in the post-link, AngularJS would have set up the observers already and would be\n      // re-adding the attribute, even though we removed it from the element.\n      pre: preLink\n    }\n  };\n\n  function preLink(scope, element, attr, inputContainer) {\n    // If there is no input container, just return\n    if (!inputContainer) return;\n\n    var label = inputContainer.element.find('label');\n    var noFloat = inputContainer.element.attr('md-no-float');\n\n    // If we have a label, or they specify the md-no-float attribute, just return\n    if ((label && label.length) || noFloat === '' || scope.$eval(noFloat)) {\n      // Add a placeholder class so we can target it in the CSS\n      inputContainer.setHasPlaceholder(true);\n      return;\n    }\n\n    // md-select handles placeholders on it's own\n    if (element[0].nodeName !== 'MD-SELECT') {\n      // Move the placeholder expression to the label\n      var newLabel = angular.element(\n        '<label ng-click=\"delegateClick()\" tabindex=\"-1\" aria-hidden=\"true\">' + attr.placeholder +\n        '</label>');\n\n      // Note that we unset it via `attr`, in order to get AngularJS\n      // to remove any observers that it might have set up. Otherwise\n      // the attribute will be added on the next digest.\n      attr.$set('placeholder', null);\n\n      // We need to compile the label manually in case it has any bindings.\n      // A gotcha here is that we first add the element to the DOM and we compile\n      // it later. This is necessary, because if we compile the element beforehand,\n      // it won't be able to find the `mdInputContainer` controller.\n      inputContainer.element\n        .addClass('md-icon-float')\n        .prepend(newLabel);\n\n      $compile(newLabel)(scope);\n    }\n  }\n}\n\n/**\n * @ngdoc directive\n * @name mdSelectOnFocus\n * @module material.components.input\n *\n * @restrict A\n *\n * @description\n * The `md-select-on-focus` directive allows you to automatically select the element's input text on focus.\n *\n * <h3>Notes</h3>\n * - The use of `md-select-on-focus` is restricted to `<input>` and `<textarea>` elements.\n *\n * @usage\n * <h3>Using with an Input</h3>\n * <hljs lang=\"html\">\n *\n * <md-input-container>\n *   <label>Auto Select</label>\n *   <input type=\"text\" md-select-on-focus>\n * </md-input-container>\n * </hljs>\n *\n * <h3>Using with a Textarea</h3>\n * <hljs lang=\"html\">\n *\n * <md-input-container>\n *   <label>Auto Select</label>\n *   <textarea md-select-on-focus>This text will be selected on focus.</textarea>\n * </md-input-container>\n *\n * </hljs>\n */\nfunction mdSelectOnFocusDirective($document, $timeout) {\n\n  return {\n    restrict: 'A',\n    link: postLink\n  };\n\n  function postLink(scope, element, attr) {\n    if (element[0].nodeName !== 'INPUT' && element[0].nodeName !== \"TEXTAREA\") return;\n\n    var preventMouseUp = false;\n\n    element\n      .on('focus', onFocus)\n      .on('mouseup', onMouseUp);\n\n    scope.$on('$destroy', function() {\n      element\n        .off('focus', onFocus)\n        .off('mouseup', onMouseUp);\n    });\n\n    function onFocus() {\n      preventMouseUp = true;\n\n      $timeout(function() {\n\n        // Use HTMLInputElement#select to fix firefox select issues.\n        // The debounce is here for Edge's sake, otherwise the selection doesn't work.\n        // Since focus may already have been lost on the input (and because `select()`\n        // will re-focus), make sure the element is still active before applying.\n        if ($document[0].activeElement === element[0]) {\n          element[0].select();\n        }\n\n        // This should be reset from inside the `focus`, because the event might\n        // have originated from something different than a click, e.g. a keyboard event.\n        preventMouseUp = false;\n      }, 1, false);\n    }\n\n    // Prevents the default action of the first `mouseup` after a focus.\n    // This is necessary, because browsers fire a `mouseup` right after the element\n    // has been focused. In some browsers (Firefox in particular) this can clear the\n    // selection. There are examples of the problem in issue #7487.\n    function onMouseUp(event) {\n      if (preventMouseUp) {\n        event.preventDefault();\n      }\n    }\n  }\n}\n\nvar visibilityDirectives = ['ngIf', 'ngShow', 'ngHide', 'ngSwitchWhen', 'ngSwitchDefault'];\nfunction ngMessagesDirective() {\n  return {\n    restrict: 'EA',\n    link: postLink,\n\n    // This is optional because we don't want target *all* ngMessage instances, just those inside of\n    // mdInputContainer.\n    require: '^^?mdInputContainer'\n  };\n\n  function postLink(scope, element, attrs, inputContainer) {\n    // If we are not a child of an input container, don't do anything\n    if (!inputContainer) return;\n\n    // Add our animation class\n    element.toggleClass('md-input-messages-animation', true);\n\n    // Add our md-auto-hide class to automatically hide/show messages when container is invalid\n    element.toggleClass('md-auto-hide', true);\n\n    // If we see some known visibility directives, remove the md-auto-hide class\n    if (attrs.mdAutoHide == 'false' || hasVisibiltyDirective(attrs)) {\n      element.toggleClass('md-auto-hide', false);\n    }\n  }\n\n  function hasVisibiltyDirective(attrs) {\n    return visibilityDirectives.some(function(attr) {\n      return attrs[attr];\n    });\n  }\n}\n\nfunction ngMessageDirective($mdUtil) {\n  return {\n    restrict: 'EA',\n    compile: compile,\n    priority: 100\n  };\n\n  function compile(tElement) {\n    if (!isInsideInputContainer(tElement)) {\n\n      // When the current element is inside of a document fragment, then we need to check for an input-container\n      // in the postLink, because the element will be later added to the DOM and is currently just in a temporary\n      // fragment, which causes the input-container check to fail.\n      if (isInsideFragment()) {\n        return function (scope, element) {\n          if (isInsideInputContainer(element)) {\n            // Inside of the postLink function, a ngMessage directive will be a comment element, because it's\n            // currently hidden. To access the shown element, we need to use the element from the compile function.\n            initMessageElement(tElement);\n          }\n        };\n      }\n    } else {\n      initMessageElement(tElement);\n    }\n\n    function isInsideFragment() {\n      var nextNode = tElement[0];\n      while (nextNode = nextNode.parentNode) {\n        if (nextNode.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {\n          return true;\n        }\n      }\n      return false;\n    }\n\n    function isInsideInputContainer(element) {\n      return !!$mdUtil.getClosest(element, \"md-input-container\");\n    }\n\n    function initMessageElement(element) {\n      // Add our animation class\n      element.toggleClass('md-input-message-animation', true);\n    }\n  }\n}\n\nvar $$AnimateRunner, $animateCss, $mdUtil;\n\nfunction mdInputInvalidMessagesAnimation($$AnimateRunner, $animateCss, $mdUtil) {\n  saveSharedServices($$AnimateRunner, $animateCss, $mdUtil);\n\n  return {\n    addClass: function(element, className, done) {\n      showInputMessages(element, done);\n    }\n\n    // NOTE: We do not need the removeClass method, because the message ng-leave animation will fire\n  };\n}\n\nfunction ngMessagesAnimation($$AnimateRunner, $animateCss, $mdUtil) {\n  saveSharedServices($$AnimateRunner, $animateCss, $mdUtil);\n\n  return {\n    enter: function(element, done) {\n      showInputMessages(element, done);\n    },\n\n    leave: function(element, done) {\n      hideInputMessages(element, done);\n    },\n\n    addClass: function(element, className, done) {\n      if (className == \"ng-hide\") {\n        hideInputMessages(element, done);\n      } else {\n        done();\n      }\n    },\n\n    removeClass: function(element, className, done) {\n      if (className == \"ng-hide\") {\n        showInputMessages(element, done);\n      } else {\n        done();\n      }\n    }\n  };\n}\n\nfunction ngMessageAnimation($$AnimateRunner, $animateCss, $mdUtil, $log) {\n  saveSharedServices($$AnimateRunner, $animateCss, $mdUtil, $log);\n\n  return {\n    enter: function(element, done) {\n      var animator = showMessage(element);\n\n      animator.start().done(done);\n    },\n\n    leave: function(element, done) {\n      var animator = hideMessage(element);\n\n      animator.start().done(done);\n    }\n  };\n}\n\nfunction showInputMessages(element, done) {\n  var animators = [], animator;\n  var messages = getMessagesElement(element);\n  var children = messages.children();\n\n  if (messages.length == 0 || children.length == 0) {\n    done();\n    return;\n  }\n\n  angular.forEach(children, function(child) {\n    animator = showMessage(angular.element(child));\n\n    animators.push(animator.start());\n  });\n\n  $$AnimateRunner.all(animators, done);\n}\n\nfunction hideInputMessages(element, done) {\n  var animators = [], animator;\n  var messages = getMessagesElement(element);\n  var children = messages.children();\n\n  if (messages.length == 0 || children.length == 0) {\n    done();\n    return;\n  }\n\n  angular.forEach(children, function(child) {\n    animator = hideMessage(angular.element(child));\n\n    animators.push(animator.start());\n  });\n\n  $$AnimateRunner.all(animators, done);\n}\n\nfunction showMessage(element) {\n  var height = parseInt(window.getComputedStyle(element[0]).height);\n  var topMargin = parseInt(window.getComputedStyle(element[0]).marginTop);\n\n  var messages = getMessagesElement(element);\n  var container = getInputElement(element);\n\n  // Check to see if the message is already visible so we can skip\n  var alreadyVisible = (topMargin > -height);\n\n  // If we have the md-auto-hide class, the md-input-invalid animation will fire, so we can skip\n  if (alreadyVisible || (messages.hasClass('md-auto-hide') && !container.hasClass('md-input-invalid'))) {\n    return $animateCss(element, {});\n  }\n\n  return $animateCss(element, {\n    event: 'enter',\n    structural: true,\n    from: {\"opacity\": 0, \"margin-top\": -height + \"px\"},\n    to: {\"opacity\": 1, \"margin-top\": \"0\"},\n    duration: 0.3\n  });\n}\n\nfunction hideMessage(element) {\n  var height = element[0].offsetHeight;\n  var styles = window.getComputedStyle(element[0]);\n\n  // If we are already hidden, just return an empty animation\n  if (parseInt(styles.opacity) === 0) {\n    return $animateCss(element, {});\n  }\n\n  // Otherwise, animate\n  return $animateCss(element, {\n    event: 'leave',\n    structural: true,\n    from: {\"opacity\": 1, \"margin-top\": 0},\n    to: {\"opacity\": 0, \"margin-top\": -height + \"px\"},\n    duration: 0.3\n  });\n}\n\nfunction getInputElement(element) {\n  var inputContainer = element.controller('mdInputContainer');\n\n  return inputContainer.element;\n}\n\nfunction getMessagesElement(element) {\n  // If we ARE the messages element, just return ourself\n  if (element.hasClass('md-input-messages-animation')) {\n    return element;\n  }\n\n  // If we are a ng-message element, we need to traverse up the DOM tree\n  if (element.hasClass('md-input-message-animation')) {\n    return angular.element($mdUtil.getClosest(element, function(node) {\n      return node.classList.contains('md-input-messages-animation');\n    }));\n  }\n\n  // Otherwise, we can traverse down\n  return angular.element(element[0].querySelector('.md-input-messages-animation'));\n}\n\nfunction saveSharedServices(_$$AnimateRunner_, _$animateCss_, _$mdUtil_) {\n  $$AnimateRunner = _$$AnimateRunner_;\n  $animateCss = _$animateCss_;\n  $mdUtil = _$mdUtil_;\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.list\n * @description\n * List module\n */\nMdListController.$inject = [\"$scope\", \"$element\", \"$mdListInkRipple\"];\nmdListDirective.$inject = [\"$mdTheming\"];\nmdListItemDirective.$inject = [\"$mdAria\", \"$mdConstant\", \"$mdUtil\", \"$timeout\"];\nangular.module('material.components.list', [\n  'material.core'\n])\n  .controller('MdListController', MdListController)\n  .directive('mdList', mdListDirective)\n  .directive('mdListItem', mdListItemDirective);\n\n/**\n * @ngdoc directive\n * @name mdList\n * @module material.components.list\n *\n * @restrict E\n *\n * @description\n * The `<md-list>` directive is a list container for 1..n `<md-list-item>` tags.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-list>\n *   <md-list-item class=\"md-2-line\" ng-repeat=\"item in todos\">\n *     <md-checkbox ng-model=\"item.done\"></md-checkbox>\n *     <div class=\"md-list-item-text\">\n *       <h3>{{item.title}}</h3>\n *       <p>{{item.description}}</p>\n *     </div>\n *   </md-list-item>\n * </md-list>\n * </hljs>\n */\n\nfunction mdListDirective($mdTheming) {\n  return {\n    restrict: 'E',\n    compile: function(tEl) {\n      tEl[0].setAttribute('role', 'list');\n      return $mdTheming;\n    }\n  };\n}\n/**\n * @ngdoc directive\n * @name mdListItem\n * @module material.components.list\n *\n * @restrict E\n *\n * @description\n * A `md-list-item` element can be used to represent some information in a row.<br/>\n *\n * @usage\n * ### Single Row Item\n * <hljs lang=\"html\">\n *   <md-list-item>\n *     <span>Single Row Item</span>\n *   </md-list-item>\n * </hljs>\n *\n * ### Multiple Lines\n * By using the following markup, you will be able to have two lines inside of one `md-list-item`.\n *\n * <hljs lang=\"html\">\n *   <md-list-item class=\"md-2-line\">\n *     <div class=\"md-list-item-text\" layout=\"column\">\n *       <p>First Line</p>\n *       <p>Second Line</p>\n *     </div>\n *   </md-list-item>\n * </hljs>\n *\n * It is also possible to have three lines inside of one list item.\n *\n * <hljs lang=\"html\">\n *   <md-list-item class=\"md-3-line\">\n *     <div class=\"md-list-item-text\" layout=\"column\">\n *       <p>First Line</p>\n *       <p>Second Line</p>\n *       <p>Third Line</p>\n *     </div>\n *   </md-list-item>\n * </hljs>\n *\n * ### Secondary Items\n * Secondary items are elements which will be aligned at the end of the `md-list-item`.\n *\n * <hljs lang=\"html\">\n *   <md-list-item>\n *     <span>Single Row Item</span>\n *     <md-button class=\"md-secondary\">\n *       Secondary Button\n *     </md-button>\n *   </md-list-item>\n * </hljs>\n *\n * It also possible to have multiple secondary items inside of one `md-list-item`.\n *\n * <hljs lang=\"html\">\n *   <md-list-item>\n *     <span>Single Row Item</span>\n *     <md-button class=\"md-secondary\">First Button</md-button>\n *     <md-button class=\"md-secondary\">Second Button</md-button>\n *   </md-list-item>\n * </hljs>\n *\n * ### Proxy Item\n * Proxies are elements, which will execute their specific action on click<br/>\n * Currently supported proxy items are\n * - `md-checkbox` (Toggle)\n * - `md-switch` (Toggle)\n * - `md-menu` (Open)\n *\n * This means, when using a supported proxy item inside of `md-list-item`, the list item will\n * automatically become clickable and executes the associated action of the proxy element on click.\n *\n * It is possible to disable this behavior by applying the `md-no-proxy` class to the list item.\n *\n * <hljs lang=\"html\">\n *   <md-list-item class=\"md-no-proxy\">\n *     <span>No Proxy List</span>\n *     <md-checkbox class=\"md-secondary\"></md-checkbox>\n *   </md-list-item>\n * </hljs>\n *\n * Here are a few examples of proxy elements inside of a list item.\n *\n * <hljs lang=\"html\">\n *   <md-list-item>\n *     <span>First Line</span>\n *     <md-checkbox class=\"md-secondary\"></md-checkbox>\n *   </md-list-item>\n * </hljs>\n *\n * The `md-checkbox` element will be automatically detected as a proxy element and will toggle on\n * click.\n *\n * If not provided, an `aria-label` will be applied using the text of the list item.\n * In this case, the following will be applied to the `md-checkbox`:\n * `aria-label=\"Toggle First Line\"`.\n * When localizing your application, you should supply a localized `aria-label`.\n *\n * <hljs lang=\"html\">\n *   <md-list-item>\n *     <span>First Line</span>\n *     <md-switch class=\"md-secondary\"></md-switch>\n *   </md-list-item>\n * </hljs>\n *\n * The recognized `md-switch` will toggle its state, when the user clicks on the `md-list-item`.\n *\n * It is also possible to have a `md-menu` inside of a `md-list-item`.\n *\n * <hljs lang=\"html\">\n *   <md-list-item>\n *     <p>Click anywhere to fire the secondary action</p>\n *     <md-menu class=\"md-secondary\">\n *       <md-button class=\"md-icon-button\">\n *         <md-icon md-svg-icon=\"communication:message\"></md-icon>\n *       </md-button>\n *       <md-menu-content width=\"4\">\n *         <md-menu-item>\n *           <md-button>\n *             Redial\n *           </md-button>\n *         </md-menu-item>\n *         <md-menu-item>\n *           <md-button>\n *             Check voicemail\n *           </md-button>\n *         </md-menu-item>\n *         <md-menu-divider></md-menu-divider>\n *         <md-menu-item>\n *           <md-button>\n *             Notifications\n *           </md-button>\n *         </md-menu-item>\n *       </md-menu-content>\n *     </md-menu>\n *   </md-list-item>\n * </hljs>\n *\n * The menu will automatically open, when the users clicks on the `md-list-item`.<br/>\n *\n * If the developer didn't specify any position mode on the menu, the `md-list-item` will\n * automatically detect the position mode and apply it to the `md-menu`.\n *\n * ### Avatars\n * Sometimes you may want to have avatars inside of the `md-list-item `.<br/>\n * You are able to create an optimized icon for the list item, by applying the `.md-avatar` class on\n * the `<img>` element.\n *\n * <hljs lang=\"html\">\n *   <md-list-item>\n *     <img src=\"my-avatar.png\" class=\"md-avatar\">\n *     <span>Alan Turing</span>\n * </hljs>\n *\n * When using `<md-icon>` for an avatar, you have to use the `.md-avatar-icon` class.\n *\n * <hljs lang=\"html\">\n *   <md-list-item>\n *     <md-icon class=\"md-avatar-icon\" md-svg-icon=\"social:person\"></md-icon>\n *     <span>Timothy Kopra</span>\n *   </md-list-item>\n * </hljs>\n *\n * In cases where you have a `md-list-item`, which doesn't have an avatar,\n * but you want to align it with the other avatar items, you need to use the `.md-offset` class.\n *\n * <hljs lang=\"html\">\n *   <md-list-item class=\"md-offset\">\n *     <span>Jon Doe</span>\n *   </md-list-item>\n * </hljs>\n *\n * ### DOM modification\n * The `md-list-item` component automatically detects if the list item should be clickable.\n *\n * ---\n * If the `md-list-item` is clickable, we wrap all content inside of a `<div>` and create\n * an overlaying button, which will will execute the given actions (like `ng-href`, `ng-click`).\n *\n * We create an overlaying button, instead of wrapping all content inside of the button,\n * because otherwise some elements may not be clickable inside of the button.\n *\n * ---\n * When using a secondary item inside of your list item, the `md-list-item` component will\n * automatically create a secondary container at the end of the `md-list-item`, which contains all\n * secondary items.\n *\n * The secondary item container is not static, because that would cause issues with the overflow\n * of the list item.\n */\nfunction mdListItemDirective($mdAria, $mdConstant, $mdUtil, $timeout) {\n  var proxiedTypes = ['md-checkbox', 'md-switch', 'md-menu'];\n  return {\n    restrict: 'E',\n    controller: 'MdListController',\n\n    compile: function(tElement, tAttrs) {\n\n      // Check for proxy controls (no ng-click on parent, and a control inside)\n      var secondaryItems = tElement[0].querySelectorAll('.md-secondary');\n      var hasProxiedElement;\n      var proxyElement;\n      var itemContainer = tElement;\n\n      tElement[0].setAttribute('role', 'listitem');\n\n      if (tAttrs.ngClick || tAttrs.ngDblclick ||  tAttrs.ngHref || tAttrs.href || tAttrs.uiSref || tAttrs.ngAttrUiSref) {\n        wrapIn('button');\n      } else if (!tElement.hasClass('md-no-proxy')) {\n\n        for (var i = 0, type; i < proxiedTypes.length; ++i) {\n          proxyElement = tElement[0].querySelector(proxiedTypes[i]);\n          if (proxyElement !== null) {\n            hasProxiedElement = true;\n            break;\n          }\n        }\n\n        if (hasProxiedElement) {\n          wrapIn('div');\n        } else {\n          tElement.addClass('md-no-proxy');\n        }\n      }\n\n      wrapSecondaryItems();\n      setupToggleAria();\n\n      if (hasProxiedElement && proxyElement.nodeName === \"MD-MENU\") {\n        setupProxiedMenu();\n      }\n\n      function setupToggleAria() {\n        var toggleTypes = ['md-switch', 'md-checkbox'];\n        var toggle;\n\n        for (var i = 0, toggleType; i < toggleTypes.length; ++i) {\n          toggle = tElement.find(toggleTypes[i])[0];\n          if (toggle) {\n            if (!toggle.hasAttribute('aria-label')) {\n              var labelElement = tElement.find('p')[0];\n              if (!labelElement) {\n                labelElement = tElement.find('span')[0];\n              }\n              if (!labelElement) return;\n              toggle.setAttribute('aria-label', 'Toggle ' + labelElement.textContent);\n            }\n          }\n        }\n      }\n\n      function setupProxiedMenu() {\n        var menuEl = angular.element(proxyElement);\n\n        var isEndAligned = menuEl.parent().hasClass('md-secondary-container') ||\n                           proxyElement.parentNode.firstElementChild !== proxyElement;\n\n        var xAxisPosition = 'left';\n\n        if (isEndAligned) {\n          // When the proxy item is aligned at the end of the list, we have to set the origin to the end.\n          xAxisPosition = 'right';\n        }\n\n        // Set the position mode / origin of the proxied menu.\n        if (!menuEl.attr('md-position-mode')) {\n          menuEl.attr('md-position-mode', xAxisPosition + ' target');\n        }\n\n        // Apply menu open binding to menu button\n        var menuOpenButton = menuEl.children().eq(0);\n        if (!hasClickEvent(menuOpenButton[0])) {\n          menuOpenButton.attr('ng-click', '$mdMenu.open($event)');\n        }\n\n        if (!menuOpenButton.attr('aria-label')) {\n          menuOpenButton.attr('aria-label', 'Open List Menu');\n        }\n      }\n\n      /**\n       * @param {'div'|'button'} type\n       */\n      function wrapIn(type) {\n        if (type === 'div') {\n          itemContainer = angular.element('<div class=\"md-no-style md-list-item-inner\">');\n          itemContainer.append(tElement.contents());\n          tElement.addClass('md-proxy-focus');\n        } else {\n          // Element which holds the default list-item content.\n          itemContainer = angular.element(\n            '<div class=\"md-button md-no-style\">' +\n            '   <div class=\"md-list-item-inner\"></div>' +\n            '</div>'\n          );\n\n          // Button which shows ripple and executes primary action.\n          var buttonWrap = angular.element('<md-button class=\"md-no-style\"></md-button>');\n\n          moveAttributes(tElement[0], buttonWrap[0]);\n\n          // If there is no aria-label set on the button (previously copied over if present)\n          // we determine the label from the content and copy it to the button.\n          if (!buttonWrap.attr('aria-label')) {\n            buttonWrap.attr('aria-label', $mdAria.getText(tElement));\n\n            // If we set the button's aria-label to the text content, then make the content hidden\n            // from screen readers so that it isn't read/traversed twice.\n            var listItemInner = itemContainer[0].querySelector('.md-list-item-inner');\n            if (listItemInner) {\n              listItemInner.setAttribute('aria-hidden', 'true');\n            }\n          }\n\n          // We allow developers to specify the `md-no-focus` class, to disable the focus style\n          // on the button executor. Once more classes should be forwarded, we should probably make\n          // the class forward more generic.\n          if (tElement.hasClass('md-no-focus')) {\n            buttonWrap.addClass('md-no-focus');\n          }\n\n          // Append the button wrap before our list-item content, because it will overlay in\n          // relative.\n          itemContainer.prepend(buttonWrap);\n          itemContainer.children().eq(1).append(tElement.contents());\n\n          tElement.addClass('_md-button-wrap');\n        }\n\n        tElement[0].setAttribute('tabindex', '-1');\n        tElement.append(itemContainer);\n      }\n\n      function wrapSecondaryItems() {\n        var secondaryItemsWrapper = angular.element('<div class=\"md-secondary-container\">');\n\n        angular.forEach(secondaryItems, function(secondaryItem) {\n          wrapSecondaryItem(secondaryItem, secondaryItemsWrapper);\n        });\n\n        itemContainer.append(secondaryItemsWrapper);\n      }\n\n      /**\n       * @param {HTMLElement} secondaryItem\n       * @param {HTMLDivElement} container\n       */\n      function wrapSecondaryItem(secondaryItem, container) {\n        // If the current secondary item is not a button, but contains a ng-click attribute,\n        // the secondary item will be automatically wrapped inside of a button.\n        if (secondaryItem && !isButton(secondaryItem) && secondaryItem.hasAttribute('ng-click')) {\n\n          $mdAria.expect(secondaryItem, 'aria-label');\n          var buttonWrapper = angular.element('<md-button class=\"md-secondary md-icon-button\">');\n\n          // Move the attributes from the secondary item to the generated button.\n          // We also support some additional attributes from the secondary item,\n          // because some developers may use a ngIf, ngHide, ngShow on their item.\n          moveAttributes(secondaryItem, buttonWrapper[0], ['ng-if', 'ng-hide', 'ng-show']);\n\n          secondaryItem.setAttribute('tabindex', '-1');\n          buttonWrapper.append(secondaryItem);\n\n          secondaryItem = buttonWrapper[0];\n        }\n\n        if (secondaryItem &&\n            (!hasClickEvent(secondaryItem) ||\n              (!tAttrs.ngClick && isProxiedElement(secondaryItem)))) {\n          // In this case we remove the secondary class, so we can identify it later, when searching\n          // for the proxy items.\n          angular.element(secondaryItem).removeClass('md-secondary');\n        }\n\n        tElement.addClass('md-with-secondary');\n        container.append(secondaryItem);\n      }\n\n      /**\n       * Moves attributes from a source element to the destination element.\n       * By default, the function will copy the most necessary attributes, supported\n       * by the button executor for clickable list items.\n       * @param {Element} source Element with the specified attributes\n       * @param {Element} destination Element which will receive the attributes\n       * @param {string|string[]} extraAttrs Additional attributes, which will be moved over\n       */\n      function moveAttributes(source, destination, extraAttrs) {\n        var copiedAttrs = $mdUtil.prefixer([\n          'ng-if', 'ng-click', 'ng-dblclick', 'aria-label', 'ng-disabled', 'ui-sref',\n          'href', 'ng-href', 'rel', 'target', 'ng-attr-ui-sref', 'ui-sref-opts', 'download'\n        ]);\n\n        if (extraAttrs) {\n          copiedAttrs = copiedAttrs.concat($mdUtil.prefixer(extraAttrs));\n        }\n\n        angular.forEach(copiedAttrs, function(attr) {\n          if (source.hasAttribute(attr)) {\n            destination.setAttribute(attr, source.getAttribute(attr));\n            source.removeAttribute(attr);\n          }\n        });\n      }\n\n      /**\n       * @param {HTMLElement} element\n       * @return {boolean} true if the element has one of the proxied tags, false otherwise\n       */\n      function isProxiedElement(element) {\n        return proxiedTypes.indexOf(element.nodeName.toLowerCase()) !== -1;\n      }\n\n      /**\n       * @param {HTMLElement} element\n       * @return {boolean} true if the element is a button or md-button, false otherwise\n       */\n      function isButton(element) {\n        var nodeName = element.nodeName.toUpperCase();\n\n        return nodeName === \"MD-BUTTON\" || nodeName === \"BUTTON\";\n      }\n\n      /**\n       * @param {Element} element\n       * @return {boolean} true if the element has an ng-click attribute, false otherwise\n       */\n      function hasClickEvent(element) {\n        var attr = element.attributes;\n        for (var i = 0; i < attr.length; i++) {\n          if (tAttrs.$normalize(attr[i].name) === 'ngClick') {\n            return true;\n          }\n        }\n        return false;\n      }\n\n      return postLink;\n\n      function postLink($scope, $element, $attr, ctrl) {\n        $element.addClass('_md');     // private md component indicator for styling\n\n        var proxies       = [],\n            firstElement  = $element[0].firstElementChild,\n            isButtonWrap  = $element.hasClass('_md-button-wrap'),\n            clickChild    = isButtonWrap ? firstElement.firstElementChild : firstElement,\n            hasClick      = clickChild && hasClickEvent(clickChild),\n            noProxies     = $element.hasClass('md-no-proxy');\n\n        computeProxies();\n        computeClickable();\n\n        if (proxies.length) {\n          angular.forEach(proxies, function(proxy) {\n            proxy = angular.element(proxy);\n\n            $scope.mouseActive = false;\n            proxy.on('mousedown', function() {\n              $scope.mouseActive = true;\n              $timeout(function() {\n                $scope.mouseActive = false;\n              }, 100);\n            })\n            .on('focus', function() {\n              if ($scope.mouseActive === false) { $element.addClass('md-focused'); }\n              proxy.on('blur', function proxyOnBlur() {\n                $element.removeClass('md-focused');\n                proxy.off('blur', proxyOnBlur);\n              });\n            });\n          });\n        }\n\n        function computeProxies() {\n          if (firstElement && firstElement.children && !hasClick && !noProxies) {\n\n            angular.forEach(proxiedTypes, function(type) {\n              // All elements which are not capable of being used as a proxy have the .md-secondary\n              // class applied. These items were identified in the secondary wrap function.\n              angular.forEach(firstElement.querySelectorAll(type + ':not(.md-secondary)'), function(child) {\n                proxies.push(child);\n              });\n            });\n          }\n        }\n\n        function computeClickable() {\n          if (proxies.length === 1 || hasClick) {\n            $element.addClass('md-clickable');\n\n            if (!hasClick) {\n              ctrl.attachRipple($scope, angular.element($element[0].querySelector('.md-no-style')));\n            }\n          }\n        }\n\n        /**\n         * @param {MouseEvent} event\n         * @return {boolean}\n         */\n        function isEventFromControl(event) {\n          var forbiddenControls = ['md-slider'];\n          var eventBubblePath = $mdUtil.getEventPath(event);\n\n          // If there is no bubble path, then the event was not bubbled.\n          if (!eventBubblePath || eventBubblePath.length === 0) {\n            return forbiddenControls.indexOf(event.target.tagName.toLowerCase()) !== -1;\n          }\n\n          // We iterate the event bubble path up and check for a possible component.\n          // Our maximum index to search, is the list item root.\n          var maxPath = eventBubblePath.indexOf($element.children()[0]);\n\n          for (var i = 0; i < maxPath; i++) {\n            if (forbiddenControls.indexOf(eventBubblePath[i].tagName.toLowerCase()) !== -1) {\n              return true;\n            }\n          }\n          return false;\n        }\n\n        /**\n         * @param {KeyboardEvent} keypressEvent\n         */\n        var clickChildKeypressListener = function(keypressEvent) {\n          if (keypressEvent.target.nodeName !== 'INPUT' &&\n              keypressEvent.target.nodeName !== 'TEXTAREA' &&\n              !keypressEvent.target.isContentEditable) {\n            var keyCode = keypressEvent.which || keypressEvent.keyCode;\n            if (keyCode === $mdConstant.KEY_CODE.SPACE) {\n              if (clickChild) {\n                clickChild.click();\n                keypressEvent.preventDefault();\n                keypressEvent.stopPropagation();\n              }\n            }\n          }\n        };\n\n        if (!hasClick && !proxies.length) {\n          clickChild && clickChild.addEventListener('keypress', clickChildKeypressListener);\n        }\n\n        $element.off('click');\n        $element.off('keypress');\n        // Disable ng-aria's \"helpful\" keydown event that causes our ng-click handlers to be called\n        // twice.\n        $element.off('keydown');\n\n        if (proxies.length === 1 && clickChild) {\n          $element.children().eq(0).on('click', function(clickEvent) {\n            // When the event is coming from a control and it should not trigger the proxied element\n            // then we are skipping.\n            if (isEventFromControl(clickEvent)) return;\n\n            var parentButton = $mdUtil.getClosest(clickEvent.target, 'BUTTON');\n            if (!parentButton && clickChild.contains(clickEvent.target)) {\n              angular.forEach(proxies, function(proxy) {\n                if (clickEvent.target !== proxy && !proxy.contains(clickEvent.target)) {\n                  if (proxy.nodeName === 'MD-MENU') {\n                    proxy = proxy.children[0];\n                  }\n                  angular.element(proxy).triggerHandler('click');\n                }\n              });\n            }\n          });\n        }\n\n        $scope.$on('$destroy', function () {\n          clickChild && clickChild.removeEventListener('keypress', clickChildKeypressListener);\n        });\n      }\n    }\n  };\n}\n\n/*\n * @private\n * @ngdoc controller\n * @name MdListController\n * @module material.components.list\n */\nfunction MdListController($scope, $element, $mdListInkRipple) {\n  var ctrl = this;\n  ctrl.attachRipple = attachRipple;\n\n  function attachRipple (scope, element) {\n    var options = {};\n    $mdListInkRipple.attach(scope, element, options);\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.menu\n */\n\nangular.module('material.components.menu', [\n  'material.core',\n  'material.components.backdrop'\n]);\n\n})();\n(function(){\n\"use strict\";\n\n\n\nMenuController.$inject = [\"$mdMenu\", \"$attrs\", \"$element\", \"$scope\", \"$mdUtil\", \"$timeout\", \"$rootScope\", \"$q\", \"$log\"];\nangular\n    .module('material.components.menu')\n    .controller('mdMenuCtrl', MenuController);\n\n/**\n * @ngInject\n */\nfunction MenuController($mdMenu, $attrs, $element, $scope, $mdUtil, $timeout, $rootScope, $q, $log) {\n\n  var prefixer = $mdUtil.prefixer();\n  var menuContainer;\n  var self = this;\n  var triggerElement;\n\n  this.nestLevel = parseInt($attrs.mdNestLevel, 10) || 0;\n\n  /**\n   * Called by our linking fn to provide access to the menu-content\n   * element removed during link\n   */\n  this.init = function init(setMenuContainer, opts) {\n    opts = opts || {};\n    menuContainer = setMenuContainer;\n\n    // Default element for ARIA attributes has the ngClick or ngMouseenter expression\n    triggerElement = $element[0].querySelector(prefixer.buildSelector(['ng-click', 'ng-mouseenter']));\n    triggerElement.setAttribute('aria-expanded', 'false');\n\n    this.isInMenuBar = opts.isInMenuBar;\n    this.mdMenuBarCtrl = opts.mdMenuBarCtrl;\n    this.nestedMenus = $mdUtil.nodesToArray(menuContainer[0].querySelectorAll('.md-nested-menu'));\n\n    menuContainer.on('$mdInterimElementRemove', function() {\n      self.isOpen = false;\n      $mdUtil.nextTick(function(){ self.onIsOpenChanged(self.isOpen);});\n    });\n    $mdUtil.nextTick(function(){ self.onIsOpenChanged(self.isOpen);});\n\n    var menuContainerId = 'menu_container_' + $mdUtil.nextUid();\n    menuContainer.attr('id', menuContainerId);\n    angular.element(triggerElement).attr({\n      'aria-owns': menuContainerId,\n      'aria-haspopup': 'true'\n    });\n\n    $scope.$on('$destroy', angular.bind(this, function() {\n      this.disableHoverListener();\n      $mdMenu.destroy();\n    }));\n\n    menuContainer.on('$destroy', function() {\n      $mdMenu.destroy();\n    });\n  };\n\n  var openMenuTimeout, menuItems, deregisterScopeListeners = [];\n  this.enableHoverListener = function() {\n    deregisterScopeListeners.push($rootScope.$on('$mdMenuOpen', function(event, el) {\n      if (menuContainer[0].contains(el[0])) {\n        self.currentlyOpenMenu = el.controller('mdMenu');\n        self.isAlreadyOpening = false;\n        self.currentlyOpenMenu.registerContainerProxy(self.triggerContainerProxy.bind(self));\n      }\n    }));\n    deregisterScopeListeners.push($rootScope.$on('$mdMenuClose', function(event, el) {\n      if (menuContainer[0].contains(el[0])) {\n        self.currentlyOpenMenu = undefined;\n      }\n    }));\n    menuItems = angular.element($mdUtil.nodesToArray(menuContainer[0].children[0].children));\n    menuItems.on('mouseenter', self.handleMenuItemHover);\n    menuItems.on('mouseleave', self.handleMenuItemMouseLeave);\n  };\n\n  this.disableHoverListener = function() {\n    while (deregisterScopeListeners.length) {\n      deregisterScopeListeners.shift()();\n    }\n    menuItems && menuItems.off('mouseenter', self.handleMenuItemHover);\n    menuItems && menuItems.off('mouseleave', self.handleMenuItemMouseLeave);\n  };\n\n  this.handleMenuItemHover = function(event) {\n    if (self.isAlreadyOpening) return;\n    var nestedMenu = (\n      event.target.querySelector('md-menu')\n        || $mdUtil.getClosest(event.target, 'MD-MENU')\n    );\n    openMenuTimeout = $timeout(function() {\n      if (nestedMenu) {\n        nestedMenu = angular.element(nestedMenu).controller('mdMenu');\n      }\n\n      if (self.currentlyOpenMenu && self.currentlyOpenMenu != nestedMenu) {\n        var closeTo = self.nestLevel + 1;\n        self.currentlyOpenMenu.close(true, { closeTo: closeTo });\n        self.isAlreadyOpening = !!nestedMenu;\n        nestedMenu && nestedMenu.open();\n      } else if (nestedMenu && !nestedMenu.isOpen && nestedMenu.open) {\n        self.isAlreadyOpening = !!nestedMenu;\n        nestedMenu && nestedMenu.open();\n      }\n    }, nestedMenu ? 100 : 250);\n    var focusableTarget = event.currentTarget.querySelector('.md-button:not([disabled])');\n    focusableTarget && focusableTarget.focus();\n  };\n\n  this.handleMenuItemMouseLeave = function() {\n    if (openMenuTimeout) {\n      $timeout.cancel(openMenuTimeout);\n      openMenuTimeout = undefined;\n    }\n  };\n\n\n  /**\n   * Uses the $mdMenu interim element service to open the menu contents\n   */\n  this.open = function openMenu(ev) {\n    ev && ev.stopPropagation();\n    ev && ev.preventDefault();\n    if (self.isOpen) return;\n    self.enableHoverListener();\n    self.isOpen = true;\n    $mdUtil.nextTick(function(){ self.onIsOpenChanged(self.isOpen);});\n    triggerElement = triggerElement || (ev ? ev.target : $element[0]);\n    triggerElement.setAttribute('aria-expanded', 'true');\n    $scope.$emit('$mdMenuOpen', $element);\n    $mdMenu.show({\n      scope: $scope,\n      mdMenuCtrl: self,\n      nestLevel: self.nestLevel,\n      element: menuContainer,\n      target: triggerElement,\n      preserveElement: true,\n      parent: 'body'\n    }).finally(function() {\n      triggerElement.setAttribute('aria-expanded', 'false');\n      self.disableHoverListener();\n    });\n  };\n\n  this.onIsOpenChanged = function(isOpen) {\n    if (isOpen) {\n      menuContainer.attr('aria-hidden', 'false');\n      $element[0].classList.add('md-open');\n      angular.forEach(self.nestedMenus, function(el) {\n        el.classList.remove('md-open');\n      });\n    } else {\n      menuContainer.attr('aria-hidden', 'true');\n      $element[0].classList.remove('md-open');\n    }\n    $scope.$mdMenuIsOpen = self.isOpen;\n  };\n\n  this.focusMenuContainer = function focusMenuContainer() {\n    var focusTarget = menuContainer[0]\n      .querySelector(prefixer.buildSelector(['md-menu-focus-target', 'md-autofocus']));\n\n    if (!focusTarget) focusTarget = menuContainer[0].querySelector('.md-button:not([disabled])');\n    focusTarget.focus();\n  };\n\n  this.registerContainerProxy = function registerContainerProxy(handler) {\n    this.containerProxy = handler;\n  };\n\n  this.triggerContainerProxy = function triggerContainerProxy(ev) {\n    this.containerProxy && this.containerProxy(ev);\n  };\n\n  this.destroy = function() {\n    return self.isOpen ? $mdMenu.destroy() : $q.when(false);\n  };\n\n  // Use the $mdMenu interim element service to close the menu contents\n  this.close = function closeMenu(skipFocus, closeOpts) {\n    if (!self.isOpen) return;\n    self.isOpen = false;\n    $mdUtil.nextTick(function(){ self.onIsOpenChanged(self.isOpen);});\n\n    var eventDetails = angular.extend({}, closeOpts, { skipFocus: skipFocus });\n    $scope.$emit('$mdMenuClose', $element, eventDetails);\n    $mdMenu.hide(null, closeOpts);\n\n    if (!skipFocus) {\n      var el = self.restoreFocusTo || $element.find('button')[0];\n      if (el instanceof angular.element) el = el[0];\n      if (el) el.focus();\n    }\n  };\n\n  /**\n   * Build a nice object out of our string attribute which specifies the\n   * target mode for left and top positioning\n   */\n  this.positionMode = function positionMode() {\n    var attachment = ($attrs.mdPositionMode || 'target').split(' ');\n\n    // If attachment is a single item, duplicate it for our second value.\n    // ie. 'target' -> 'target target'\n    if (attachment.length === 1) {\n      attachment.push(attachment[0]);\n    }\n\n    return {\n      left: attachment[0],\n      top: attachment[1]\n    };\n  };\n\n  /**\n   * Build a nice object out of our string attribute which specifies\n   * the offset of top and left in pixels.\n   */\n  this.offsets = function offsets() {\n    var position = ($attrs.mdOffset || '0 0').split(' ').map(parseFloat);\n    if (position.length === 2) {\n      return {\n        left: position[0],\n        top: position[1]\n      };\n    } else if (position.length === 1) {\n      return {\n        top: position[0],\n        left: position[0]\n      };\n    } else {\n      throw Error('Invalid offsets specified. Please follow format <x, y> or <n>');\n    }\n  };\n\n  // Functionality that is exposed in the view.\n  $scope.$mdMenu = {\n    open: this.open,\n    close: this.close\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc directive\n * @name mdMenu\n * @module material.components.menu\n * @restrict E\n * @description\n *\n * Menus are elements that open when clicked. They are useful for displaying\n * additional options within the context of an action.\n *\n * Every `md-menu` must specify exactly two child elements. The first element is what is\n * left in the DOM and is used to open the menu. This element is called the trigger element.\n * The trigger element's scope has access to `$mdMenu.open($event)`\n * which it may call to open the menu. By passing $event as argument, the\n * corresponding event is stopped from propagating up the DOM-tree. Similarly, `$mdMenu.close()`\n * can be used to close the menu.\n *\n * The second element is the `md-menu-content` element which represents the\n * contents of the menu when it is open. Typically this will contain `md-menu-item`s,\n * but you can do custom content as well.\n *\n * <hljs lang=\"html\">\n * <md-menu>\n *  <!-- Trigger element is a md-button with an icon -->\n *  <md-button ng-click=\"$mdMenu.open($event)\" class=\"md-icon-button\" aria-label=\"Open sample menu\">\n *    <md-icon md-svg-icon=\"call:phone\"></md-icon>\n *  </md-button>\n *  <md-menu-content>\n *    <md-menu-item><md-button ng-click=\"doSomething()\">Do Something</md-button></md-menu-item>\n *  </md-menu-content>\n * </md-menu>\n * </hljs>\n\n * ## Sizing Menus\n *\n * The width of the menu when it is open may be specified by specifying a `width`\n * attribute on the `md-menu-content` element.\n * See the [Material Design Spec](https://material.io/archive/guidelines/components/menus.html#menus-simple-menus)\n * for more information.\n *\n * ## Menu Density\n *\n * You can use dense menus by adding the `md-dense` class to the `md-menu-content` element.\n * This reduces the height of menu items, their top and bottom padding, and default font size.\n * Without the `md-dense` class, we use the \"mobile\" height of `48px`. With the `md-dense` class,\n * we use the \"desktop\" height of `32px`. We do not support the \"dense desktop\" option in the spec,\n * which uses a height of `24px`, at this time.\n * See the [Menu Specs](https://material.io/archive/guidelines/components/menus.html#menus-specs)\n * section of the Material Design Spec for more information.\n *\n * ## Aligning Menus\n *\n * When a menu opens, it is important that the content aligns with the trigger element.\n * Failure to align menus can result in jarring experiences for users as content\n * suddenly shifts. To help with this, `md-menu` provides several APIs to help\n * with alignment.\n *\n * ### Target Mode\n *\n * By default, `md-menu` will attempt to align the `md-menu-content` by aligning\n * designated child elements in both the trigger and the menu content.\n *\n * To specify the alignment element in the `trigger` you can use the `md-menu-origin`\n * attribute on a child element. If no `md-menu-origin` is specified, the `md-menu`\n * will be used as the origin element.\n *\n * Similarly, the `md-menu-content` may specify a `md-menu-align-target` for a\n * `md-menu-item` to specify the node that it should try and align with.\n *\n * In this example code, we specify an icon to be our origin element, and an\n * icon in our menu content to be our alignment target. This ensures that both\n * icons are aligned when the menu opens.\n *\n * <hljs lang=\"html\">\n * <md-menu>\n *  <md-button ng-click=\"$mdMenu.open($event)\" class=\"md-icon-button\" aria-label=\"Open some menu\">\n *    <md-icon md-menu-origin md-svg-icon=\"call:phone\"></md-icon>\n *  </md-button>\n *  <md-menu-content>\n *    <md-menu-item>\n *      <md-button ng-click=\"doSomething()\" aria-label=\"Do something\">\n *        <md-icon md-menu-align-target md-svg-icon=\"call:phone\"></md-icon>\n *        Do Something\n *      </md-button>\n *    </md-menu-item>\n *  </md-menu-content>\n * </md-menu>\n * </hljs>\n *\n * ### Position Mode\n *\n * We can specify the origin of the menu by using the `md-position-mode` attribute.\n * This attribute allows specifying the positioning by the `x` and `y` axes.\n *\n * The default mode is `target target`. This mode uses the left and top edges of the origin element\n * to position the menu in LTR layouts. The `x` axis modes will adjust when in RTL layouts.\n *\n * Sometimes you want to specify alignment from the right side of a origin element. For example,\n * if we have a menu on the right side a toolbar, we may want to right align our menu content.\n * We can use `target-right target` to specify a right-oriented alignment target.\n * There is a working example of this in the Menu Position Modes demo.\n *\n * #### Horizontal Positioning Options\n * - `target`\n * - `target-left`\n * - `target-right`\n * - `cascade`\n * - `right`\n * - `left`\n *\n * #### Vertical Positioning Options\n * - `target`\n * - `cascade`\n * - `bottom`\n *\n * ### Menu Offsets\n *\n * It is sometimes unavoidable to need to have a deeper level of control for\n * the positioning of a menu to ensure perfect alignment. `md-menu` provides\n * the `md-offset` attribute to allow pixel-level specificity when adjusting\n * menu positioning.\n *\n * This offset is provided in the format of `x y` or `n` where `n` will be used\n * in both the `x` and `y` axis.\n * For example, to move a menu by `2px` down from the top, we can use:\n *\n * <hljs lang=\"html\">\n * <md-menu md-offset=\"0 2\">\n *   <!-- menu-content -->\n * </md-menu>\n * </hljs>\n *\n * Specifying `md-offset=\"2 2\"` would shift the menu two pixels down and two pixels to the right.\n *\n * ### Auto Focus\n * By default, when a menu opens, `md-menu` focuses the first button in the menu content.\n *\n * Sometimes you would like to focus another menu item instead of the first.<br/>\n * This can be done by applying the `md-autofocus` directive on the given element.\n *\n * <hljs lang=\"html\">\n * <md-menu-item>\n *   <md-button md-autofocus ng-click=\"doSomething()\">\n *     Auto Focus\n *   </md-button>\n * </md-menu-item>\n * </hljs>\n *\n *\n * ### Preventing close\n *\n * Sometimes you would like to be able to click on a menu item without having the menu\n * close. To do this, AngularJS Material exposes the `md-prevent-menu-close` attribute which\n * can be added to a button inside a menu to stop the menu from automatically closing.\n * You can then close the menu either by using `$mdMenu.close()` in the template,\n * or programmatically by injecting `$mdMenu` and calling `$mdMenu.hide()`.\n *\n * <hljs lang=\"html\">\n * <md-menu-content ng-mouseleave=\"$mdMenu.close()\">\n *   <md-menu-item>\n *     <md-button ng-click=\"doSomething()\" aria-label=\"Do something\" md-prevent-menu-close=\"md-prevent-menu-close\">\n *       <md-icon md-menu-align-target md-svg-icon=\"call:phone\"></md-icon>\n *       Do Something\n *     </md-button>\n *   </md-menu-item>\n * </md-menu-content>\n * </hljs>\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-menu>\n *  <md-button ng-click=\"$mdMenu.open($event)\" class=\"md-icon-button\">\n *    <md-icon md-svg-icon=\"call:phone\"></md-icon>\n *  </md-button>\n *  <md-menu-content>\n *    <md-menu-item><md-button ng-click=\"doSomething()\">Do Something</md-button></md-menu-item>\n *  </md-menu-content>\n * </md-menu>\n * </hljs>\n *\n * @param {string=} md-position-mode Specify pre-defined position modes for the `x` and `y` axes.\n *  The default modes are `target target`. This positions the origin of the menu using the left and top edges\n *  of the origin element in LTR layouts.<br>\n *  #### Valid modes for horizontal positioning\n * - `target`\n * - `target-left`\n * - `target-right`\n * - `cascade`\n * - `right`\n * - `left`<br>\n *  #### Valid modes for vertical positioning\n * - `target`\n * - `cascade`\n * - `bottom`\n * @param {string=} md-offset An offset to apply to the dropdown on opening, after positioning.\n *  Defined as `x` and `y` pixel offset values in the form of `x y`.<br>\n *  The default value is `0 0`.\n */\nMenuDirective.$inject = [\"$mdUtil\"];\nangular\n    .module('material.components.menu')\n    .directive('mdMenu', MenuDirective);\n\n/**\n * @ngInject\n */\nfunction MenuDirective($mdUtil) {\n  var INVALID_PREFIX = 'Invalid HTML for md-menu: ';\n  return {\n    restrict: 'E',\n    require: ['mdMenu', '?^mdMenuBar'],\n    controller: 'mdMenuCtrl', // empty function to be built by link\n    scope: true,\n    compile: compile\n  };\n\n  function compile(templateElement) {\n    templateElement.addClass('md-menu');\n\n    var triggerEl = templateElement.children()[0];\n    var prefixer = $mdUtil.prefixer();\n\n    if (!prefixer.hasAttribute(triggerEl, 'ng-click')) {\n      triggerEl = triggerEl\n          .querySelector(prefixer.buildSelector(['ng-click', 'ng-mouseenter'])) || triggerEl;\n    }\n\n    var isButtonTrigger = triggerEl.nodeName === 'MD-BUTTON' || triggerEl.nodeName === 'BUTTON';\n\n    if (triggerEl && isButtonTrigger && !triggerEl.hasAttribute('type')) {\n      triggerEl.setAttribute('type', 'button');\n    }\n\n    if (!triggerEl) {\n      throw Error(INVALID_PREFIX + 'Expected the menu to have a trigger element.');\n    }\n\n    if (templateElement.children().length !== 2) {\n      throw Error(INVALID_PREFIX + 'Expected two children elements. The second element must have a `md-menu-content` element.');\n    }\n\n    // Default element for ARIA attributes has the ngClick or ngMouseenter expression\n    triggerEl && triggerEl.setAttribute('aria-haspopup', 'true');\n\n    var nestedMenus = templateElement[0].querySelectorAll('md-menu');\n    var nestingDepth = parseInt(templateElement[0].getAttribute('md-nest-level'), 10) || 0;\n    if (nestedMenus) {\n      angular.forEach($mdUtil.nodesToArray(nestedMenus), function(menuEl) {\n        if (!menuEl.hasAttribute('md-position-mode')) {\n          menuEl.setAttribute('md-position-mode', 'cascade');\n        }\n        menuEl.classList.add('_md-nested-menu');\n        menuEl.setAttribute('md-nest-level', nestingDepth + 1);\n      });\n    }\n    return link;\n  }\n\n  function link(scope, element, attr, ctrls) {\n    var mdMenuCtrl = ctrls[0];\n    var isInMenuBar = !!ctrls[1];\n    var mdMenuBarCtrl = ctrls[1];\n    // Move everything into a md-menu-container and pass it to the controller\n    var menuContainer = angular.element('<div class=\"_md md-open-menu-container md-whiteframe-z2\"></div>');\n    var menuContents = element.children()[1];\n\n    element.addClass('_md');     // private md component indicator for styling\n\n    if (!menuContents.hasAttribute('role')) {\n      menuContents.setAttribute('role', 'menu');\n    }\n    menuContainer.append(menuContents);\n\n    element.on('$destroy', function() {\n      menuContainer.remove();\n    });\n\n    element.append(menuContainer);\n    menuContainer[0].style.display = 'none';\n    mdMenuCtrl.init(menuContainer, { isInMenuBar: isInMenuBar, mdMenuBarCtrl: mdMenuBarCtrl });\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n\nMenuProvider.$inject = [\"$$interimElementProvider\"];angular\n  .module('material.components.menu')\n  .provider('$mdMenu', MenuProvider);\n\n/**\n * Interim element provider for the menu.\n * Handles behavior for a menu while it is open, including:\n *    - handling animating the menu opening/closing\n *    - handling key/mouse events on the menu element\n *    - handling enabling/disabling scroll while the menu is open\n *    - handling redrawing during resizes and orientation changes\n *\n */\n\nfunction MenuProvider($$interimElementProvider) {\n  menuDefaultOptions.$inject = [\"$mdUtil\", \"$mdTheming\", \"$mdConstant\", \"$document\", \"$window\", \"$q\", \"$$rAF\", \"$animateCss\", \"$animate\", \"$log\"];\n  var MENU_EDGE_MARGIN = 8;\n\n  return $$interimElementProvider('$mdMenu')\n    .setDefaults({\n      methods: ['target'],\n      options: menuDefaultOptions\n    });\n\n  /* @ngInject */\n  function menuDefaultOptions($mdUtil, $mdTheming, $mdConstant, $document, $window, $q, $$rAF,\n                              $animateCss, $animate, $log) {\n\n    var prefixer = $mdUtil.prefixer();\n    var animator = $mdUtil.dom.animator;\n\n    return {\n      parent: 'body',\n      onShow: onShow,\n      onRemove: onRemove,\n      hasBackdrop: true,\n      disableParentScroll: true,\n      skipCompile: true,\n      preserveScope: true,\n      multiple: true,\n      themable: true\n    };\n\n    /**\n     * Show modal backdrop element...\n     * @returns {function(): void} A function that removes this backdrop\n     */\n    function showBackdrop(scope, element, options) {\n      if (options.nestLevel) return angular.noop;\n\n      // If we are not within a dialog...\n      if (options.disableParentScroll && !$mdUtil.getClosest(options.target, 'MD-DIALOG')) {\n        // !! DO this before creating the backdrop; since disableScrollAround()\n        //    configures the scroll offset; which is used by mdBackDrop postLink()\n        options.restoreScroll = $mdUtil.disableScrollAround(options.element, options.parent);\n      } else {\n        options.disableParentScroll = false;\n      }\n\n      if (options.hasBackdrop) {\n        options.backdrop = $mdUtil.createBackdrop(scope, \"md-menu-backdrop md-click-catcher\");\n\n        $animate.enter(options.backdrop, options.backdropParent || $document[0].body);\n      }\n\n      /**\n       * Hide and destroys the backdrop created by showBackdrop()\n       */\n      return function hideBackdrop() {\n        if (options.backdrop) options.backdrop.remove();\n        if (options.disableParentScroll) options.restoreScroll();\n      };\n    }\n\n    /**\n     * Removing the menu element from the DOM and remove all associated event listeners\n     * and backdrop\n     */\n    function onRemove(scope, element, opts) {\n      opts.cleanupInteraction();\n      opts.cleanupBackdrop();\n      opts.cleanupResizing();\n      opts.hideBackdrop();\n\n      // Before the menu is closing remove the clickable class.\n      element.removeClass('md-clickable');\n\n      // For navigation $destroy events, do a quick, non-animated removal,\n      // but for normal closes (from clicks, etc) animate the removal\n\n      return (opts.$destroy === true) ? detachAndClean() : animateRemoval().then(detachAndClean);\n\n      /**\n       * For normal closes, animate the removal.\n       * For forced closes (like $destroy events), skip the animations\n       */\n      function animateRemoval() {\n        return $animateCss(element, {addClass: 'md-leave'}).start();\n      }\n\n      /**\n       * Detach the element\n       */\n      function detachAndClean() {\n        element.removeClass('md-active');\n        detachElement(element, opts);\n        opts.alreadyOpen = false;\n      }\n\n    }\n\n    /**\n     * Inserts and configures the staged Menu element into the DOM, positioning it,\n     * and wiring up various interaction events\n     */\n    function onShow(scope, element, opts) {\n      sanitizeAndConfigure(opts);\n\n      if (opts.menuContentEl[0]) {\n        // Inherit the theme from the target element.\n        $mdTheming.inherit(opts.menuContentEl, opts.target);\n      } else {\n        $log.warn(\n          '$mdMenu: Menu elements should always contain a `md-menu-content` element,' +\n          'otherwise interactivity features will not work properly.',\n          element\n        );\n      }\n\n      // Register various listeners to move menu on resize/orientation change\n      opts.cleanupResizing = startRepositioningOnResize();\n      opts.hideBackdrop = showBackdrop(scope, element, opts);\n\n      // Return the promise for when our menu is done animating in\n      return showMenu()\n        .then(function(response) {\n          opts.alreadyOpen = true;\n          opts.cleanupInteraction = activateInteraction();\n          opts.cleanupBackdrop = setupBackdrop();\n\n          // Since the menu finished its animation, mark the menu as clickable.\n          element.addClass('md-clickable');\n\n          return response;\n        });\n\n      /**\n       * Place the menu into the DOM and call positioning related functions\n       */\n      function showMenu() {\n        opts.parent.append(element);\n        element[0].style.display = '';\n\n        return $q(function(resolve) {\n          var position = calculateMenuPosition(element, opts);\n\n          element.removeClass('md-leave');\n\n          // Animate the menu scaling, and opacity [from its position origin (default == top-left)]\n          // to normal scale.\n          $animateCss(element, {\n            addClass: 'md-active',\n            from: animator.toCss(position),\n            to: animator.toCss({transform: ''})\n          })\n          .start()\n          .then(resolve);\n\n        });\n      }\n\n      /**\n       * Check for valid opts and set some useful defaults\n       */\n      function sanitizeAndConfigure() {\n        if (!opts.target) {\n          throw Error(\n            '$mdMenu.show() expected a target to animate from in options.target'\n          );\n        }\n        angular.extend(opts, {\n          alreadyOpen: false,\n          isRemoved: false,\n          target: angular.element(opts.target), // make sure it's not a naked DOM node\n          parent: angular.element(opts.parent),\n          menuContentEl: angular.element(element[0].querySelector('md-menu-content'))\n        });\n      }\n\n      /**\n       * Configure various resize listeners for screen changes\n       */\n      function startRepositioningOnResize() {\n\n        var repositionMenu = (function(target, options) {\n          return $$rAF.throttle(function() {\n            if (opts.isRemoved) return;\n            var position = calculateMenuPosition(target, options);\n\n            target.css(animator.toCss(position));\n          });\n        })(element, opts);\n\n        $window.addEventListener('resize', repositionMenu);\n        $window.addEventListener('orientationchange', repositionMenu);\n\n        return function stopRepositioningOnResize() {\n\n          // Disable resizing handlers\n          $window.removeEventListener('resize', repositionMenu);\n          $window.removeEventListener('orientationchange', repositionMenu);\n\n        };\n      }\n\n      /**\n       * Sets up the backdrop and listens for click elements.\n       * Once the backdrop will be clicked, the menu will automatically close.\n       * @returns {!Function} Function to remove the backdrop.\n       */\n      function setupBackdrop() {\n        if (!opts.backdrop) return angular.noop;\n\n        opts.backdrop.on('click', onBackdropClick);\n\n        return function() {\n          opts.backdrop.off('click', onBackdropClick);\n        };\n      }\n\n      /**\n       * Function to be called whenever the backdrop is clicked.\n       * @param {!MouseEvent} event\n       */\n      function onBackdropClick(event) {\n        event.preventDefault();\n        event.stopPropagation();\n\n        scope.$apply(function() {\n          opts.mdMenuCtrl.close(true, { closeAll: true });\n        });\n      }\n\n      /**\n       * Activate interaction on the menu. Resolves the focus target and closes the menu on\n       * escape or option click.\n       * @returns {!Function} Function to deactivate the interaction listeners.\n       */\n      function activateInteraction() {\n        if (!opts.menuContentEl[0]) return angular.noop;\n\n        // Wire up keyboard listeners.\n        // - Close on escape,\n        // - focus next item on down arrow,\n        // - focus prev item on up\n        opts.menuContentEl.on('keydown', onMenuKeyDown);\n        opts.menuContentEl[0].addEventListener('click', captureClickListener, true);\n\n        // kick off initial focus in the menu on the first enabled element\n        var focusTarget = opts.menuContentEl[0]\n          .querySelector(prefixer.buildSelector(['md-menu-focus-target', 'md-autofocus']));\n\n        if (!focusTarget) {\n          var childrenLen = opts.menuContentEl[0].children.length;\n          for (var childIndex = 0; childIndex < childrenLen; childIndex++) {\n            var child = opts.menuContentEl[0].children[childIndex];\n            focusTarget = child.querySelector('.md-button:not([disabled])');\n            if (focusTarget) {\n              break;\n            }\n            // Need to check the attribute as well since this might be a custom element whose\n            // disabled property is undefined.\n            if (child.firstElementChild && !child.firstElementChild.disabled &&\n                !child.firstElementChild.getAttribute('disabled')) {\n              focusTarget = child.firstElementChild;\n              break;\n            }\n          }\n        }\n\n        focusTarget && focusTarget.focus();\n\n        return function cleanupInteraction() {\n          opts.menuContentEl.off('keydown', onMenuKeyDown);\n          opts.menuContentEl[0].removeEventListener('click', captureClickListener, true);\n        };\n\n        // ************************************\n        // internal functions\n        // ************************************\n\n        function onMenuKeyDown(ev) {\n          var handled;\n          switch (ev.keyCode) {\n            case $mdConstant.KEY_CODE.ESCAPE:\n              if (opts.nestLevel) {\n                opts.mdMenuCtrl.close();\n              } else {\n                opts.mdMenuCtrl.close(false, { closeAll: true });\n              }\n              handled = true;\n              break;\n            case $mdConstant.KEY_CODE.TAB:\n              opts.mdMenuCtrl.close(false, { closeAll: true });\n              // Don't prevent default or stop propagation on this event as we want tab\n              // to move the focus to the next focusable element on the page.\n              handled = false;\n              break;\n            case $mdConstant.KEY_CODE.UP_ARROW:\n              if (!focusMenuItem(ev, opts.menuContentEl, opts, -1) && !opts.nestLevel) {\n                opts.mdMenuCtrl.triggerContainerProxy(ev);\n              }\n              handled = true;\n              break;\n            case $mdConstant.KEY_CODE.DOWN_ARROW:\n              if (!focusMenuItem(ev, opts.menuContentEl, opts, 1) && !opts.nestLevel) {\n                opts.mdMenuCtrl.triggerContainerProxy(ev);\n              }\n              handled = true;\n              break;\n            case $mdConstant.KEY_CODE.LEFT_ARROW:\n              if (opts.nestLevel) {\n                opts.mdMenuCtrl.close();\n              } else {\n                opts.mdMenuCtrl.triggerContainerProxy(ev);\n              }\n              handled = true;\n              break;\n            case $mdConstant.KEY_CODE.RIGHT_ARROW:\n              var parentMenu = $mdUtil.getClosest(ev.target, 'MD-MENU');\n              if (parentMenu && parentMenu != opts.parent[0]) {\n                ev.target.click();\n              } else {\n                opts.mdMenuCtrl.triggerContainerProxy(ev);\n              }\n              handled = true;\n              break;\n          }\n          if (handled) {\n            ev.preventDefault();\n            ev.stopImmediatePropagation();\n          }\n        }\n\n        function onBackdropClick(e) {\n          e.preventDefault();\n          e.stopPropagation();\n          scope.$apply(function() {\n            opts.mdMenuCtrl.close(true, { closeAll: true });\n          });\n        }\n\n        // Close menu on menu item click, if said menu-item is not disabled\n        function captureClickListener(e) {\n          var target = e.target;\n          // Traverse up the event until we get to the menuContentEl to see if\n          // there is an ng-click and that the ng-click is not disabled\n          do {\n            if (target == opts.menuContentEl[0]) return;\n            if ((hasAnyAttribute(target, ['ng-click', 'ng-href', 'ui-sref']) ||\n                target.nodeName == 'BUTTON' || target.nodeName == 'MD-BUTTON') && !hasAnyAttribute(target, ['md-prevent-menu-close'])) {\n              var closestMenu = $mdUtil.getClosest(target, 'MD-MENU');\n              if (!target.hasAttribute('disabled') && (!closestMenu || closestMenu == opts.parent[0])) {\n                close();\n              }\n              break;\n            }\n          } while (target = target.parentNode);\n\n          function close() {\n            scope.$apply(function() {\n              opts.mdMenuCtrl.close(true, { closeAll: true });\n            });\n          }\n\n          function hasAnyAttribute(target, attrs) {\n            if (!target) return false;\n\n            for (var i = 0, attr; attr = attrs[i]; ++i) {\n              if (prefixer.hasAttribute(target, attr)) {\n                return true;\n              }\n            }\n\n            return false;\n          }\n        }\n\n      }\n    }\n\n    /**\n     * Takes a keypress event and focuses the next/previous menu\n     * item from the emitting element\n     * @param {event} e - The origin keypress event\n     * @param {angular.element} menuEl - The menu element\n     * @param {object} opts - The interim element options for the mdMenu\n     * @param {number} direction - The direction to move in (+1 = next, -1 = prev)\n     */\n    function focusMenuItem(e, menuEl, opts, direction) {\n      var currentItem = $mdUtil.getClosest(e.target, 'MD-MENU-ITEM');\n\n      var items = $mdUtil.nodesToArray(menuEl[0].children);\n      var currentIndex = items.indexOf(currentItem);\n\n      // Traverse through our elements in the specified direction (+/-1) and try to\n      // focus them until we find one that accepts focus\n      var didFocus;\n      for (var i = currentIndex + direction; i >= 0 && i < items.length; i = i + direction) {\n        var focusTarget = items[i].querySelector('.md-button');\n        didFocus = attemptFocus(focusTarget);\n        if (didFocus) {\n          break;\n        }\n      }\n      return didFocus;\n    }\n\n    /**\n     * Attempts to focus an element. Checks whether that element is the currently\n     * focused element after attempting.\n     * @param {HTMLElement} el - the element to attempt focus on\n     * @returns {boolean} - whether the element was successfully focused\n     */\n    function attemptFocus(el) {\n      if (el && el.getAttribute('tabindex') != -1) {\n        el.focus();\n        return ($document[0].activeElement == el);\n      }\n    }\n\n    /**\n     * Use browser to remove this element without triggering a $destroy event\n     */\n    function detachElement(element, opts) {\n      if (!opts.preserveElement) {\n        if (toNode(element).parentNode === toNode(opts.parent)) {\n          toNode(opts.parent).removeChild(toNode(element));\n        }\n      } else {\n        toNode(element).style.display = 'none';\n      }\n    }\n\n    /**\n     * Computes menu position and sets the style on the menu container\n     * @param {HTMLElement} el - the menu container element\n     * @param {object} opts - the interim element options object\n     */\n    function calculateMenuPosition(el, opts) {\n\n      var containerNode = el[0],\n        openMenuNode = el[0].firstElementChild,\n        openMenuNodeRect = openMenuNode.getBoundingClientRect(),\n        boundryNode = $document[0].body,\n        boundryNodeRect = boundryNode.getBoundingClientRect();\n\n      var menuStyle = $window.getComputedStyle(openMenuNode);\n\n      var originNode = opts.target[0].querySelector(prefixer.buildSelector('md-menu-origin')) || opts.target[0],\n        originNodeRect = originNode.getBoundingClientRect();\n\n      var bounds = {\n        left: boundryNodeRect.left + MENU_EDGE_MARGIN,\n        top: Math.max(boundryNodeRect.top, 0) + MENU_EDGE_MARGIN,\n        bottom: Math.max(boundryNodeRect.bottom, Math.max(boundryNodeRect.top, 0) + boundryNodeRect.height) - MENU_EDGE_MARGIN,\n        right: boundryNodeRect.right - MENU_EDGE_MARGIN\n      };\n\n      var alignTarget, alignTargetRect = { top:0, left : 0, right:0, bottom:0 }, existingOffsets  = { top:0, left : 0, right:0, bottom:0  };\n      var positionMode = opts.mdMenuCtrl.positionMode();\n\n      if (positionMode.top === 'target' || positionMode.left === 'target' || positionMode.left === 'target-right') {\n        alignTarget = firstVisibleChild();\n        if (alignTarget) {\n          // TODO: Allow centering on an arbitrary node, for now center on first menu-item's child\n          alignTarget = alignTarget.firstElementChild || alignTarget;\n          alignTarget = alignTarget.querySelector(prefixer.buildSelector('md-menu-align-target')) || alignTarget;\n          alignTargetRect = alignTarget.getBoundingClientRect();\n\n          existingOffsets = {\n            top: parseFloat(containerNode.style.top || 0),\n            left: parseFloat(containerNode.style.left || 0)\n          };\n        }\n      }\n\n      var position = {};\n      var transformOrigin = 'top ';\n\n      switch (positionMode.top) {\n        case 'target':\n          position.top = existingOffsets.top + originNodeRect.top - alignTargetRect.top;\n          break;\n        case 'cascade':\n          position.top = originNodeRect.top - parseFloat(menuStyle.paddingTop) - originNode.style.top;\n          break;\n        case 'bottom':\n          position.top = originNodeRect.top + originNodeRect.height;\n          break;\n        default:\n          throw new Error('Invalid target mode \"' + positionMode.top + '\" specified for md-menu on Y axis.');\n      }\n\n      var rtl = $mdUtil.isRtl(el);\n\n      switch (positionMode.left) {\n        case 'target':\n          position.left = existingOffsets.left + originNodeRect.left - alignTargetRect.left;\n          transformOrigin += rtl ? 'right'  : 'left';\n          break;\n        case 'target-left':\n          position.left = originNodeRect.left;\n          transformOrigin += 'left';\n          break;\n        case 'target-right':\n          position.left = originNodeRect.right - openMenuNodeRect.width + (openMenuNodeRect.right - alignTargetRect.right);\n          transformOrigin += 'right';\n          break;\n        case 'cascade':\n          var willFitRight = rtl ? (originNodeRect.left - openMenuNodeRect.width) < bounds.left : (originNodeRect.right + openMenuNodeRect.width) < bounds.right;\n          position.left = willFitRight ? originNodeRect.right - originNode.style.left : originNodeRect.left - originNode.style.left - openMenuNodeRect.width;\n          transformOrigin += willFitRight ? 'left' : 'right';\n          break;\n        case 'right':\n          if (rtl) {\n            position.left = originNodeRect.right - originNodeRect.width;\n            transformOrigin += 'left';\n          } else {\n            position.left = originNodeRect.right - openMenuNodeRect.width;\n            transformOrigin += 'right';\n          }\n          break;\n        case 'left':\n          if (rtl) {\n            position.left = originNodeRect.right - openMenuNodeRect.width;\n            transformOrigin += 'right';\n          } else {\n            position.left = originNodeRect.left;\n            transformOrigin += 'left';\n          }\n          break;\n        default:\n          throw new Error('Invalid target mode \"' + positionMode.left + '\" specified for md-menu on X axis.');\n      }\n\n      var offsets = opts.mdMenuCtrl.offsets();\n      position.top += offsets.top;\n      position.left += offsets.left;\n\n      clamp(position);\n\n      var scaleX = Math.round(100 * Math.min(originNodeRect.width / containerNode.offsetWidth, 1.0)) / 100;\n      var scaleY = Math.round(100 * Math.min(originNodeRect.height / containerNode.offsetHeight, 1.0)) / 100;\n\n      return {\n        top: Math.round(position.top),\n        left: Math.round(position.left),\n        // Animate a scale out if we aren't just repositioning\n        transform: !opts.alreadyOpen ? $mdUtil.supplant('scale({0},{1})', [scaleX, scaleY]) : undefined,\n        transformOrigin: transformOrigin\n      };\n\n      /**\n       * Clamps the repositioning of the menu within the confines of\n       * bounding element (often the screen/body)\n       */\n      function clamp(pos) {\n        pos.top = Math.max(Math.min(pos.top, bounds.bottom - containerNode.offsetHeight), bounds.top);\n        pos.left = Math.max(Math.min(pos.left, bounds.right - containerNode.offsetWidth), bounds.left);\n      }\n\n      /**\n       * Gets the first visible child in the openMenuNode\n       * Necessary incase menu nodes are being dynamically hidden\n       */\n      function firstVisibleChild() {\n        for (var i = 0; i < openMenuNode.children.length; ++i) {\n          if ($window.getComputedStyle(openMenuNode.children[i]).display != 'none') {\n            return openMenuNode.children[i];\n          }\n        }\n      }\n    }\n  }\n  function toNode(el) {\n    if (el instanceof angular.element) {\n      el = el[0];\n    }\n    return el;\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.menuBar\n */\n\nangular.module('material.components.menuBar', [\n  'material.core',\n  'material.components.icon',\n  'material.components.menu'\n]);\n\n})();\n(function(){\n\"use strict\";\n\n\nMenuBarController.$inject = [\"$scope\", \"$rootScope\", \"$element\", \"$attrs\", \"$mdConstant\", \"$document\", \"$mdUtil\", \"$timeout\"];\nangular\n  .module('material.components.menuBar')\n  .controller('MenuBarController', MenuBarController);\n\nvar BOUND_MENU_METHODS = ['handleKeyDown', 'handleMenuHover', 'scheduleOpenHoveredMenu', 'cancelScheduledOpen'];\n\n/**\n * @ngInject\n */\nfunction MenuBarController($scope, $rootScope, $element, $attrs, $mdConstant, $document, $mdUtil, $timeout) {\n  this.$element = $element;\n  this.$attrs = $attrs;\n  this.$mdConstant = $mdConstant;\n  this.$mdUtil = $mdUtil;\n  this.$document = $document;\n  this.$scope = $scope;\n  this.$rootScope = $rootScope;\n  this.$timeout = $timeout;\n\n  var self = this;\n  angular.forEach(BOUND_MENU_METHODS, function(methodName) {\n    self[methodName] = angular.bind(self, self[methodName]);\n  });\n}\n\nMenuBarController.prototype.init = function() {\n  var $element = this.$element;\n  var $mdUtil = this.$mdUtil;\n  var $scope = this.$scope;\n\n  var self = this;\n  var deregisterFns = [];\n  $element.on('keydown', this.handleKeyDown);\n  this.parentToolbar = $mdUtil.getClosest($element, 'MD-TOOLBAR');\n\n  deregisterFns.push(this.$rootScope.$on('$mdMenuOpen', function(event, el) {\n    if (self.getMenus().indexOf(el[0]) != -1) {\n      $element[0].classList.add('md-open');\n      el[0].classList.add('md-open');\n      self.currentlyOpenMenu = el.controller('mdMenu');\n      self.currentlyOpenMenu.registerContainerProxy(self.handleKeyDown);\n      self.enableOpenOnHover();\n    }\n  }));\n\n  deregisterFns.push(this.$rootScope.$on('$mdMenuClose', function(event, el, opts) {\n    var rootMenus = self.getMenus();\n    if (rootMenus.indexOf(el[0]) != -1) {\n      $element[0].classList.remove('md-open');\n      el[0].classList.remove('md-open');\n    }\n\n    var ctrl = angular.element(el[0]).controller('mdMenu');\n    if (ctrl.isInMenuBar && ctrl.mdMenuBarCtrl === self) {\n      var parentMenu = el[0];\n      while (parentMenu && rootMenus.indexOf(parentMenu) == -1) {\n        parentMenu = $mdUtil.getClosest(parentMenu, 'MD-MENU', true);\n      }\n      if (parentMenu) {\n        if (!opts.skipFocus) parentMenu.querySelector('button:not([disabled])').focus();\n        self.currentlyOpenMenu = undefined;\n      }\n      self.disableOpenOnHover();\n      self.setKeyboardMode(true);\n    }\n  }));\n\n  $scope.$on('$destroy', function() {\n    self.disableOpenOnHover();\n    while (deregisterFns.length) {\n      deregisterFns.shift()();\n    }\n  });\n\n\n  this.setKeyboardMode(true);\n};\n\nMenuBarController.prototype.setKeyboardMode = function(enabled) {\n  if (enabled) this.$element[0].classList.add('md-keyboard-mode');\n  else this.$element[0].classList.remove('md-keyboard-mode');\n};\n\nMenuBarController.prototype.enableOpenOnHover = function() {\n  if (this.openOnHoverEnabled) return;\n\n  var self = this;\n\n  self.openOnHoverEnabled = true;\n\n  if (self.parentToolbar) {\n    self.parentToolbar.classList.add('md-has-open-menu');\n\n    // Needs to be on the next tick so it doesn't close immediately.\n    self.$mdUtil.nextTick(function() {\n      angular.element(self.parentToolbar).on('click', self.handleParentClick);\n    }, false);\n  }\n\n  angular\n    .element(self.getMenus())\n    .on('mouseenter', self.handleMenuHover);\n};\n\nMenuBarController.prototype.handleMenuHover = function(e) {\n  this.setKeyboardMode(false);\n  if (this.openOnHoverEnabled) {\n    this.scheduleOpenHoveredMenu(e);\n  }\n};\n\nMenuBarController.prototype.disableOpenOnHover = function() {\n  if (!this.openOnHoverEnabled) return;\n\n  this.openOnHoverEnabled = false;\n\n  if (this.parentToolbar) {\n    this.parentToolbar.classList.remove('md-has-open-menu');\n    angular.element(this.parentToolbar).off('click', this.handleParentClick);\n  }\n\n  angular\n    .element(this.getMenus())\n    .off('mouseenter', this.handleMenuHover);\n};\n\nMenuBarController.prototype.scheduleOpenHoveredMenu = function(e) {\n  var menuEl = angular.element(e.currentTarget);\n  var menuCtrl = menuEl.controller('mdMenu');\n  this.setKeyboardMode(false);\n  this.scheduleOpenMenu(menuCtrl);\n};\n\nMenuBarController.prototype.scheduleOpenMenu = function(menuCtrl) {\n  var self = this;\n  var $timeout = this.$timeout;\n  if (menuCtrl != self.currentlyOpenMenu) {\n    $timeout.cancel(self.pendingMenuOpen);\n    self.pendingMenuOpen = $timeout(function() {\n      self.pendingMenuOpen = undefined;\n      if (self.currentlyOpenMenu) {\n        self.currentlyOpenMenu.close(true, { closeAll: true });\n      }\n      menuCtrl.open();\n    }, 200, false);\n  }\n};\n\nMenuBarController.prototype.handleKeyDown = function(e) {\n  var keyCodes = this.$mdConstant.KEY_CODE;\n  var currentMenu = this.currentlyOpenMenu;\n  var wasOpen = currentMenu && currentMenu.isOpen;\n  this.setKeyboardMode(true);\n  var handled, newMenu, newMenuCtrl;\n  switch (e.keyCode) {\n    case keyCodes.DOWN_ARROW:\n      if (currentMenu) {\n        currentMenu.focusMenuContainer();\n      } else {\n        this.openFocusedMenu();\n      }\n      handled = true;\n      break;\n    case keyCodes.UP_ARROW:\n      currentMenu && currentMenu.close();\n      handled = true;\n      break;\n    case keyCodes.LEFT_ARROW:\n      newMenu = this.focusMenu(-1);\n      if (wasOpen) {\n        newMenuCtrl = angular.element(newMenu).controller('mdMenu');\n        this.scheduleOpenMenu(newMenuCtrl);\n      }\n      handled = true;\n      break;\n    case keyCodes.RIGHT_ARROW:\n      newMenu = this.focusMenu(+1);\n      if (wasOpen) {\n        newMenuCtrl = angular.element(newMenu).controller('mdMenu');\n        this.scheduleOpenMenu(newMenuCtrl);\n      }\n      handled = true;\n      break;\n  }\n  if (handled) {\n    e && e.preventDefault && e.preventDefault();\n    e && e.stopImmediatePropagation && e.stopImmediatePropagation();\n  }\n};\n\nMenuBarController.prototype.focusMenu = function(direction) {\n  var menus = this.getMenus();\n  var focusedIndex = this.getFocusedMenuIndex();\n\n  if (focusedIndex == -1) { focusedIndex = this.getOpenMenuIndex(); }\n\n  var changed = false;\n\n  if (focusedIndex == -1) { focusedIndex = 0; changed = true; }\n  else if (\n    direction < 0 && focusedIndex > 0 ||\n    direction > 0 && focusedIndex < menus.length - direction\n  ) {\n    focusedIndex += direction;\n    changed = true;\n  }\n  if (changed) {\n    menus[focusedIndex].querySelector('button').focus();\n    return menus[focusedIndex];\n  }\n};\n\nMenuBarController.prototype.openFocusedMenu = function() {\n  var menu = this.getFocusedMenu();\n  menu && angular.element(menu).controller('mdMenu').open();\n};\n\nMenuBarController.prototype.getMenus = function() {\n  var $element = this.$element;\n  return this.$mdUtil.nodesToArray($element[0].children)\n    .filter(function(el) { return el.nodeName == 'MD-MENU'; });\n};\n\nMenuBarController.prototype.getFocusedMenu = function() {\n  return this.getMenus()[this.getFocusedMenuIndex()];\n};\n\nMenuBarController.prototype.getFocusedMenuIndex = function() {\n  var $mdUtil = this.$mdUtil;\n  var focusedEl = $mdUtil.getClosest(\n    this.$document[0].activeElement,\n    'MD-MENU'\n  );\n  if (!focusedEl) return -1;\n\n  var focusedIndex = this.getMenus().indexOf(focusedEl);\n  return focusedIndex;\n};\n\nMenuBarController.prototype.getOpenMenuIndex = function() {\n  var menus = this.getMenus();\n  for (var i = 0; i < menus.length; ++i) {\n    if (menus[i].classList.contains('md-open')) return i;\n  }\n  return -1;\n};\n\nMenuBarController.prototype.handleParentClick = function(event) {\n  var openMenu = this.querySelector('md-menu.md-open');\n\n  if (openMenu && !openMenu.contains(event.target)) {\n    angular.element(openMenu).controller('mdMenu').close(true, {\n      closeAll: true\n    });\n  }\n};\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc directive\n * @name mdMenuBar\n * @module material.components.menuBar\n * @restrict E\n * @description\n *\n * Menu bars are containers that hold multiple menus. They change the behavior and appearance\n * of the `md-menu` directive to behave similar to an operating system provided menu.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-menu-bar>\n *   <md-menu>\n *     <button ng-click=\"$mdMenu.open()\">\n *       File\n *     </button>\n *     <md-menu-content>\n *       <md-menu-item>\n *         <md-button ng-click=\"ctrl.sampleAction('share', $event)\">\n *           Share...\n *         </md-button>\n *       </md-menu-item>\n *       <md-menu-divider></md-menu-divider>\n *       <md-menu-item>\n *       <md-menu-item>\n *         <md-menu>\n *           <md-button ng-click=\"$mdMenu.open()\">New</md-button>\n *           <md-menu-content>\n *             <md-menu-item><md-button ng-click=\"ctrl.sampleAction('New Document', $event)\">Document</md-button></md-menu-item>\n *             <md-menu-item><md-button ng-click=\"ctrl.sampleAction('New Spreadsheet', $event)\">Spreadsheet</md-button></md-menu-item>\n *             <md-menu-item><md-button ng-click=\"ctrl.sampleAction('New Presentation', $event)\">Presentation</md-button></md-menu-item>\n *             <md-menu-item><md-button ng-click=\"ctrl.sampleAction('New Form', $event)\">Form</md-button></md-menu-item>\n *             <md-menu-item><md-button ng-click=\"ctrl.sampleAction('New Drawing', $event)\">Drawing</md-button></md-menu-item>\n *           </md-menu-content>\n *         </md-menu>\n *       </md-menu-item>\n *     </md-menu-content>\n *   </md-menu>\n * </md-menu-bar>\n * </hljs>\n *\n * ## Menu Bar Controls\n *\n * You may place `md-menu-item`s that function as controls within menu bars.\n * There are two modes that are exposed via the `type` attribute of the `md-menu-item`.\n * `type=\"checkbox\"` will function as a boolean control for the `ng-model` attribute of the\n * `md-menu-item`. `type=\"radio\"` will function like a radio button, setting the `ngModel`\n * to the `string` value of the `value` attribute. If you need non-string values, you can use\n * `ng-value` to provide an expression (this is similar to how angular's native `input[type=radio]`\n * works.\n *\n * If you want either to disable closing the opened menu when clicked, you can add the\n * `md-prevent-menu-close` attribute to the `md-menu-item`. The attribute will be forwarded to the\n * `button` element that is generated.\n *\n * <hljs lang=\"html\">\n * <md-menu-bar>\n *  <md-menu>\n *    <button ng-click=\"$mdMenu.open()\">\n *      Sample Menu\n *    </button>\n *    <md-menu-content>\n *      <md-menu-item type=\"checkbox\" ng-model=\"settings.allowChanges\" md-prevent-menu-close>\n *        Allow changes\n *      </md-menu-item>\n *      <md-menu-divider></md-menu-divider>\n *      <md-menu-item type=\"radio\" ng-model=\"settings.mode\" ng-value=\"1\">Mode 1</md-menu-item>\n *      <md-menu-item type=\"radio\" ng-model=\"settings.mode\" ng-value=\"2\">Mode 2</md-menu-item>\n *      <md-menu-item type=\"radio\" ng-model=\"settings.mode\" ng-value=\"3\">Mode 3</md-menu-item>\n *    </md-menu-content>\n *  </md-menu>\n * </md-menu-bar>\n * </hljs>\n *\n *\n * ### Nesting Menus\n *\n * Menus may be nested within menu bars. This is commonly called cascading menus.\n * To nest a menu place the nested menu inside the content of the `md-menu-item`.\n * <hljs lang=\"html\">\n * <md-menu-item>\n *   <md-menu>\n *     <button ng-click=\"$mdMenu.open()\">New</md-button>\n *     <md-menu-content>\n *       <md-menu-item><md-button ng-click=\"ctrl.sampleAction('New Document', $event)\">Document</md-button></md-menu-item>\n *       <md-menu-item><md-button ng-click=\"ctrl.sampleAction('New Spreadsheet', $event)\">Spreadsheet</md-button></md-menu-item>\n *       <md-menu-item><md-button ng-click=\"ctrl.sampleAction('New Presentation', $event)\">Presentation</md-button></md-menu-item>\n *       <md-menu-item><md-button ng-click=\"ctrl.sampleAction('New Form', $event)\">Form</md-button></md-menu-item>\n *       <md-menu-item><md-button ng-click=\"ctrl.sampleAction('New Drawing', $event)\">Drawing</md-button></md-menu-item>\n *     </md-menu-content>\n *   </md-menu>\n * </md-menu-item>\n * </hljs>\n *\n */\n\nMenuBarDirective.$inject = [\"$mdUtil\", \"$mdTheming\"];\nangular\n  .module('material.components.menuBar')\n  .directive('mdMenuBar', MenuBarDirective);\n\n/* @ngInject */\nfunction MenuBarDirective($mdUtil, $mdTheming) {\n  return {\n    restrict: 'E',\n    require: 'mdMenuBar',\n    controller: 'MenuBarController',\n\n    compile: function compile(templateEl, templateAttrs) {\n      if (!templateAttrs.ariaRole) {\n        templateEl[0].setAttribute('role', 'menubar');\n      }\n      angular.forEach(templateEl[0].children, function(menuEl) {\n        if (menuEl.nodeName == 'MD-MENU') {\n          if (!menuEl.hasAttribute('md-position-mode')) {\n            menuEl.setAttribute('md-position-mode', 'left bottom');\n\n            // Since we're in the compile function and actual `md-buttons` are not compiled yet,\n            // we need to query for possible `md-buttons` as well.\n            menuEl.querySelector('button, a, md-button').setAttribute('role', 'menuitem');\n          }\n          var contentEls = $mdUtil.nodesToArray(menuEl.querySelectorAll('md-menu-content'));\n          angular.forEach(contentEls, function(contentEl) {\n            contentEl.classList.add('md-menu-bar-menu');\n            contentEl.classList.add('md-dense');\n            if (!contentEl.hasAttribute('width')) {\n              contentEl.setAttribute('width', 5);\n            }\n          });\n        }\n      });\n\n      // Mark the child menu items that they're inside a menu bar. This is necessary,\n      // because mnMenuItem has special behaviour during compilation, depending on\n      // whether it is inside a mdMenuBar. We can usually figure this out via the DOM,\n      // however if a directive that uses documentFragment is applied to the child (e.g. ngRepeat),\n      // the element won't have a parent and won't compile properly.\n      templateEl.find('md-menu-item').addClass('md-in-menu-bar');\n\n      return function postLink(scope, el, attr, ctrl) {\n        el.addClass('_md');     // private md component indicator for styling\n        $mdTheming(scope, el);\n        ctrl.init();\n      };\n    }\n  };\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n\nangular\n  .module('material.components.menuBar')\n  .directive('mdMenuDivider', MenuDividerDirective);\n\n\nfunction MenuDividerDirective() {\n  return {\n    restrict: 'E',\n    compile: function(templateEl, templateAttrs) {\n      if (!templateAttrs.role) {\n        templateEl[0].setAttribute('role', 'separator');\n      }\n    }\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n\nMenuItemController.$inject = [\"$scope\", \"$element\", \"$attrs\"];\nangular\n  .module('material.components.menuBar')\n  .controller('MenuItemController', MenuItemController);\n\n\n/**\n * @ngInject\n */\nfunction MenuItemController($scope, $element, $attrs) {\n  this.$element = $element;\n  this.$attrs = $attrs;\n  this.$scope = $scope;\n}\n\nMenuItemController.prototype.init = function(ngModel) {\n  var $element = this.$element;\n  var $attrs = this.$attrs;\n\n  this.ngModel = ngModel;\n  if ($attrs.type == 'checkbox' || $attrs.type == 'radio') {\n    this.mode  = $attrs.type;\n    this.iconEl = $element[0].children[0];\n    this.buttonEl = $element[0].children[1];\n    if (ngModel) {\n      // Clear ngAria set attributes\n      this.initClickListeners();\n    }\n  }\n};\n\n// ngAria auto sets attributes on a menu-item with a ngModel.\n// We don't want this because our content (buttons) get the focus\n// and set their own aria attributes appropritately. Having both\n// breaks NVDA / JAWS. This undeoes ngAria's attrs.\nMenuItemController.prototype.clearNgAria = function() {\n  var el = this.$element[0];\n  var clearAttrs = ['role', 'tabindex', 'aria-invalid', 'aria-checked'];\n  angular.forEach(clearAttrs, function(attr) {\n    el.removeAttribute(attr);\n  });\n};\n\nMenuItemController.prototype.initClickListeners = function() {\n  var self = this;\n  var ngModel = this.ngModel;\n  var $scope = this.$scope;\n  var $attrs = this.$attrs;\n  var $element = this.$element;\n  var mode = this.mode;\n\n  this.handleClick = angular.bind(this, this.handleClick);\n\n  var icon = this.iconEl;\n  var button = angular.element(this.buttonEl);\n  var handleClick = this.handleClick;\n\n  $attrs.$observe('disabled', setDisabled);\n  setDisabled($attrs.disabled);\n\n  ngModel.$render = function render() {\n    self.clearNgAria();\n    if (isSelected()) {\n      icon.style.display = '';\n      button.attr('aria-checked', 'true');\n    } else {\n      icon.style.display = 'none';\n      button.attr('aria-checked', 'false');\n    }\n  };\n\n  $scope.$$postDigest(ngModel.$render);\n\n  function isSelected() {\n    if (mode == 'radio') {\n      var val = $attrs.ngValue ? $scope.$eval($attrs.ngValue) : $attrs.value;\n      return ngModel.$modelValue == val;\n    } else {\n      return ngModel.$modelValue;\n    }\n  }\n\n  function setDisabled(disabled) {\n    if (disabled) {\n      button.off('click', handleClick);\n    } else {\n      button.on('click', handleClick);\n    }\n  }\n};\n\nMenuItemController.prototype.handleClick = function(e) {\n  var mode = this.mode;\n  var ngModel = this.ngModel;\n  var $attrs = this.$attrs;\n  var newVal;\n  if (mode == 'checkbox') {\n    newVal = !ngModel.$modelValue;\n  } else if (mode == 'radio') {\n    newVal = $attrs.ngValue ? this.$scope.$eval($attrs.ngValue) : $attrs.value;\n  }\n  ngModel.$setViewValue(newVal);\n  ngModel.$render();\n};\n\n})();\n(function(){\n\"use strict\";\n\n\nMenuItemDirective.$inject = [\"$mdUtil\", \"$mdConstant\", \"$$mdSvgRegistry\"];\nangular\n  .module('material.components.menuBar')\n  .directive('mdMenuItem', MenuItemDirective);\n\n /* @ngInject */\nfunction MenuItemDirective($mdUtil, $mdConstant, $$mdSvgRegistry) {\n  return {\n    controller: 'MenuItemController',\n    require: ['mdMenuItem', '?ngModel'],\n    priority: $mdConstant.BEFORE_NG_ARIA,\n    compile: function(templateEl, templateAttrs) {\n      var type = templateAttrs.type;\n      var inMenuBarClass = 'md-in-menu-bar';\n\n      // Note: This allows us to show the `check` icon for the md-menu-bar items.\n      // The `md-in-menu-bar` class is set by the mdMenuBar directive.\n      if ((type === 'checkbox' || type === 'radio') && templateEl.hasClass(inMenuBarClass)) {\n        var text = templateEl[0].textContent;\n        var buttonEl = angular.element('<md-button type=\"button\"></md-button>');\n        var iconTemplate = '<md-icon md-svg-src=\"' + $$mdSvgRegistry.mdChecked + '\"></md-icon>';\n\n        buttonEl.html(text);\n        buttonEl.attr('tabindex', '0');\n\n        if (angular.isDefined(templateAttrs.mdPreventMenuClose)) {\n          buttonEl.attr('md-prevent-menu-close', templateAttrs.mdPreventMenuClose);\n        }\n\n        templateEl.html('');\n        templateEl.append(angular.element(iconTemplate));\n        templateEl.append(buttonEl);\n        templateEl.addClass('md-indent').removeClass(inMenuBarClass);\n\n        setDefault('role', type === 'checkbox' ? 'menuitemcheckbox' : 'menuitemradio', buttonEl);\n        moveAttrToButton('ng-disabled');\n\n      } else {\n        setDefault('role', 'menuitem', templateEl[0].querySelector('md-button, button, a'));\n      }\n\n\n      return function(scope, el, attrs, ctrls) {\n        var ctrl = ctrls[0];\n        var ngModel = ctrls[1];\n        ctrl.init(ngModel);\n      };\n\n      function setDefault(attr, val, el) {\n        el = el || templateEl;\n        if (el instanceof angular.element) {\n          el = el[0];\n        }\n        if (!el.hasAttribute(attr)) {\n          el.setAttribute(attr, val);\n        }\n      }\n\n      function moveAttrToButton(attribute) {\n        var attributes = $mdUtil.prefixer(attribute);\n\n        angular.forEach(attributes, function(attr) {\n          if (templateEl[0].hasAttribute(attr)) {\n            var val = templateEl[0].getAttribute(attr);\n            buttonEl[0].setAttribute(attr, val);\n            templateEl[0].removeAttribute(attr);\n          }\n        });\n      }\n    }\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.navBar\n */\nMdNavBar.$inject = [\"$mdAria\", \"$mdTheming\", \"$window\", \"$mdUtil\"];\nMdNavBarController.$inject = [\"$element\", \"$scope\", \"$timeout\", \"$mdConstant\"];\nMdNavItem.$inject = [\"$mdAria\", \"$$rAF\", \"$mdUtil\", \"$window\"];\nMdNavItemController.$inject = [\"$element\"];\nangular.module('material.components.navBar', ['material.core'])\n    .controller('MdNavBarController', MdNavBarController)\n    .directive('mdNavBar', MdNavBar)\n    .controller('MdNavItemController', MdNavItemController)\n    .directive('mdNavItem', MdNavItem);\n\n/**\n * @ngdoc directive\n * @name mdNavBar\n * @module material.components.navBar\n *\n * @restrict E\n *\n * @description\n * The `<md-nav-bar>` directive renders a list of material tabs that can be used\n * for top-level page navigation. Unlike `<md-tabs>`, it has no concept of a tab\n * body and no bar pagination.\n *\n * Because it deals with page navigation, certain routing concepts are built-in.\n * Route changes via `ng-href`, `ui-sref`, or `ng-click` events are supported.\n * Alternatively, the user could simply watch the value of `md-selected-nav-item`\n * (`currentNavItem` in the below example) for changes.\n *\n * Accessibility functionality is implemented as a\n * <a href=\"https://www.w3.org/TR/wai-aria-1.0/complete#tablist\">\n *   tablist</a> with\n * <a href=\"https://www.w3.org/TR/wai-aria-1.0/complete#tab\">tabs</a>.\n * We've kept the `role=\"navigation\"` on the `<nav>`, for backwards compatibility, even though\n *  it is not required in the\n * <a href=\"https://www.w3.org/TR/wai-aria-practices/#aria_lh_navigation\">\n *   latest Working Group Note from December 2017</a>.\n *\n * <h3>Keyboard Navigation</h3>\n * - `Tab`/`Shift+Tab` moves the focus to the next/previous interactive element on the page\n * - `Enter`/`Space` selects the focused nav item and navigates to display the item's contents\n * - `Right`/`Down` moves focus to the next nav item, wrapping at the end\n * - `Left`/`Up` moves focus to the previous nav item, wrapping at the end\n * - `Home`/`End` moves the focus to the first/last nav item\n *\n * @param {string=} md-selected-nav-item The name of the current tab; this must\n *     match the `name` attribute of `<md-nav-item>`.\n * @param {boolean=} md-no-ink-bar If set to true, the ink bar will be hidden.\n * @param {string=} nav-bar-aria-label An `aria-label` applied to the `md-nav-bar`'s tablist\n * for accessibility.\n *\n * @usage\n * <hljs lang=\"html\">\n *  <md-nav-bar md-selected-nav-item=\"currentNavItem\">\n *    <md-nav-item md-nav-click=\"goto('page1')\" name=\"page1\">\n *      Page One\n *    </md-nav-item>\n *    <md-nav-item md-nav-href=\"#page2\" name=\"page3\">Page Two</md-nav-item>\n *    <md-nav-item md-nav-sref=\"page3\" name=\"page2\">Page Three</md-nav-item>\n *    <md-nav-item\n *      md-nav-sref=\"app.page4\"\n *      sref-opts=\"{reload: true, notify: true}\"\n *      name=\"page4\">\n *      Page Four\n *    </md-nav-item>\n *  </md-nav-bar>\n *</hljs>\n * <hljs lang=\"js\">\n * (function() {\n *   'use strict';\n *\n *    $rootScope.$on('$routeChangeSuccess', function(event, current) {\n *      $scope.currentLink = getCurrentLinkFromRoute(current);\n *    });\n * });\n * </hljs>\n */\n/**\n * @param $mdAria\n * @param $mdTheming\n * @param $window\n * @param $mdUtil\n * @constructor\n * @ngInject\n */\nfunction MdNavBar($mdAria, $mdTheming, $window, $mdUtil) {\n  return {\n    restrict: 'E',\n    transclude: true,\n    controller: MdNavBarController,\n    controllerAs: 'ctrl',\n    bindToController: true,\n    scope: {\n      'mdSelectedNavItem': '=?',\n      'mdNoInkBar': '=?',\n      'navBarAriaLabel': '@?',\n    },\n    template:\n      '<div class=\"md-nav-bar\">' +\n        '<nav role=\"navigation\">' +\n          '<ul class=\"_md-nav-bar-list\" ng-transclude role=\"tablist\" ' +\n            'ng-focus=\"ctrl.onFocus()\" ' + // Deprecated but kept for now in order to not break tests\n            'aria-label=\"{{ctrl.navBarAriaLabel}}\">' +\n          '</ul>' +\n        '</nav>' +\n        '<md-nav-ink-bar ng-hide=\"ctrl.mdNoInkBar\"></md-nav-ink-bar>' +\n      '</div>',\n    link: function(scope, element, attrs, ctrl) {\n\n      ctrl.width = $window.innerWidth;\n\n      function onResize() {\n        if (ctrl.width !== $window.innerWidth) {\n          ctrl.updateSelectedTabInkBar();\n          ctrl.width = $window.innerWidth;\n          scope.$digest();\n        }\n      }\n\n      function cleanUp() {\n        angular.element($window).off('resize', onResize);\n      }\n\n      angular.element($window).on('resize', $mdUtil.debounce(onResize, 300));\n      scope.$on('$destroy', cleanUp);\n\n      $mdTheming(element);\n      if (!ctrl.navBarAriaLabel) {\n        $mdAria.expectAsync(element, 'aria-label', angular.noop);\n      }\n    },\n  };\n}\n\n/**\n * Controller for the nav-bar component.\n * Accessibility functionality is implemented as a tablist\n * (https://www.w3.org/TR/wai-aria-1.0/complete#tablist) and\n * tabs (https://www.w3.org/TR/wai-aria-1.0/complete#tab).\n *\n * @param {!JQLite} $element\n * @param {!IScope} $scope\n * @param {!ITimeoutService} $timeout\n * @param {!Object} $mdConstant\n * @constructor\n * @final\n * @ngInject\n */\nfunction MdNavBarController($element, $scope, $timeout, $mdConstant) {\n  // Injected variables\n  /**\n   * @private @const\n   * @type {!ITimeoutService}\n   */\n  this._$timeout = $timeout;\n\n  /**\n   * @private @const\n   * @type {!IScope}\n   */\n  this._$scope = $scope;\n\n  /**\n   * @private @const\n   * @type {!Object}\n   */\n  this._$mdConstant = $mdConstant;\n\n  // Data-bound variables.\n  /** @type {?string} */\n  this.mdSelectedNavItem;\n\n  /** @type {?string} */\n  this.navBarAriaLabel;\n\n  // State variables.\n  /** @type {?HTMLElement} */\n  this._navBarEl = $element[0];\n\n  /** @type {?JQLite} */\n  this._inkbar;\n\n  var self = this;\n  // need to wait for transcluded content to be available\n  var deregisterTabWatch = this._$scope.$watch(function() {\n    return self._navBarEl.querySelectorAll('._md-nav-button').length;\n  },\n  function(newLength) {\n    if (newLength > 0) {\n      self._initTabs();\n      deregisterTabWatch();\n    }\n  });\n}\n\n/**\n * Initializes the tab components once they exist.\n * @private\n */\nMdNavBarController.prototype._initTabs = function() {\n  this._inkbar = angular.element(this._navBarEl.querySelector('md-nav-ink-bar'));\n\n  var self = this;\n  this._$timeout(function() {\n    self._updateTabs(self.mdSelectedNavItem, null);\n  });\n\n  this._$scope.$watch('ctrl.mdSelectedNavItem', function(newValue, oldValue) {\n    // Wait a digest before update tabs for products doing\n    // anything dynamic in the template.\n    self._$timeout(function() {\n      self._updateTabs(newValue, oldValue);\n    });\n  });\n};\n\n/**\n * Set the current tab to be selected.\n * @param {string|undefined} newValue New current tab name.\n * @param {string|undefined|null} oldValue Previous tab name.\n * @private\n */\nMdNavBarController.prototype._updateTabs = function(newValue, oldValue) {\n  var self = this;\n  var tabs = this._getTabs();\n  var sameTab = newValue === oldValue;\n\n  // this._getTabs can return null if nav-bar has not yet been initialized\n  if (!tabs) return;\n\n  var newIndex = -1;\n  var newTab = this._getTabByName(newValue);\n  var oldTab = this._getTabByName(oldValue);\n\n  if (oldTab) {\n    oldTab.setSelected(false);\n  }\n\n  if (newTab) {\n    newTab.setSelected(true);\n    newIndex = tabs.indexOf(newTab);\n  }\n\n  this._$timeout(function() {\n    self._updateInkBarStyles(newTab, newIndex);\n    // Don't change focus when there is no newTab, the new and old tabs are the same, or when\n    // called from MdNavBarController._initTabs() which would have no oldTab defined.\n    if (newTab && oldTab && !sameTab) {\n      self._moveFocus(oldTab, newTab);\n    }\n  });\n};\n\n/**\n * Repositions the ink bar to the selected tab.\n * @param {MdNavItemController} tab the nav item that should have ink bar styles applied\n * @param {number=} newIndex the index of the newly selected nav item\n * @private\n */\nMdNavBarController.prototype._updateInkBarStyles = function(tab, newIndex) {\n  this._inkbar.css({display: newIndex < 0 ? 'none' : ''});\n\n  if (tab) {\n    var tabEl = tab.getButtonEl();\n    var left = tabEl.offsetLeft;\n    var tabWidth = tabEl.offsetWidth;\n    var navBarWidth = this._navBarEl.getBoundingClientRect().width;\n    var scale = tabWidth / navBarWidth;\n    var translate = left / navBarWidth * 100;\n\n    this._inkbar.css({ transform: 'translateX(' + translate + '%) scaleX(' + scale + ')' });\n  }\n};\n\n/**\n * Updates ink bar to match current tab.\n */\nMdNavBarController.prototype.updateSelectedTabInkBar = function() {\n  this._updateInkBarStyles(this._getSelectedTab());\n};\n\n/**\n * Returns an array of the current tabs.\n * @return {Array<!MdNavItemController>}\n * @private\n */\nMdNavBarController.prototype._getTabs = function() {\n  var controllers = Array.prototype.slice.call(\n    this._navBarEl.querySelectorAll('.md-nav-item'))\n    .map(function(el) {\n      return angular.element(el).controller('mdNavItem');\n    });\n  return controllers.indexOf(undefined) ? controllers : [];\n};\n\n/**\n * Returns the tab with the specified name.\n * @param {string} name The name of the tab, found in its name attribute.\n * @return {MdNavItemController}\n * @private\n */\nMdNavBarController.prototype._getTabByName = function(name) {\n  return this._findTab(function(tab) {\n    return tab.getName() === name;\n  });\n};\n\n/**\n * Returns the selected tab.\n * @return {MdNavItemController}\n * @private\n */\nMdNavBarController.prototype._getSelectedTab = function() {\n  return this._findTab(function(tab) {\n    return tab.isSelected();\n  });\n};\n\n/**\n * Returns the focused tab.\n * @return {MdNavItemController}\n */\nMdNavBarController.prototype.getFocusedTab = function() {\n  return this._findTab(function(tab) {\n    return tab.hasFocus();\n  });\n};\n\n/**\n * Find a tab that matches the specified function, starting from the first tab.\n * @param {Function} fn\n * @param {number=} startIndex index to start at. Defaults to 0.\n * @returns {MdNavItemController|null}\n * @private\n */\nMdNavBarController.prototype._findTab = function(fn, startIndex) {\n  var tabs = this._getTabs(), i;\n  if (startIndex == null) {\n    startIndex = 0;\n  }\n  for (i = startIndex; i < tabs.length; i++) {\n    if (fn(tabs[i])) {\n      return tabs[i];\n    }\n  }\n  return null;\n};\n\n/**\n * Find a tab that matches the specified function, going backwards from the end of the list.\n * @param {Function} fn\n * @param {number=} startIndex index to start at. Defaults to tabs.length - 1.\n * @returns {MdNavItemController}\n * @private\n */\nMdNavBarController.prototype._findTabReverse = function(fn, startIndex) {\n  var tabs = this._getTabs();\n  if (startIndex === undefined || startIndex === null) {\n    startIndex = tabs.length - 1;\n  }\n  for (var i = startIndex; i >= 0 ; i--) {\n    if (fn(tabs[i])) {\n      return tabs[i];\n    }\n  }\n  return null;\n};\n\n/**\n * Direct focus to the selected tab when focus enters the nav bar.\n */\nMdNavBarController.prototype.onFocus = function() {\n  var tab = this._getSelectedTab();\n  if (tab && !tab.isFocused) {\n    tab.setFocused(true);\n  }\n};\n\n/**\n * Move focus from oldTab to newTab.\n * @param {!MdNavItemController} oldTab\n * @param {!MdNavItemController} newTab\n * @private\n */\nMdNavBarController.prototype._moveFocus = function(oldTab, newTab) {\n  oldTab.setFocused(false);\n  newTab.setFocused(true);\n};\n\n/**\n * Focus the first tab.\n * @private\n */\nMdNavBarController.prototype._focusFirstTab = function() {\n  var tabs = this._getTabs();\n  if (!tabs) return;\n  var tabToFocus = this._findTab(function(tab) {\n    return tab._isEnabled();\n  });\n  if (tabToFocus) {\n    this._moveFocus(this.getFocusedTab(), tabToFocus);\n  }\n};\n\n/**\n * Focus the last tab.\n * @private\n */\nMdNavBarController.prototype._focusLastTab = function() {\n  var tabs = this._getTabs();\n  if (!tabs) return;\n  var tabToFocus = this._findTabReverse(function(tab) {\n    return tab._isEnabled();\n  });\n  if (tabToFocus) {\n    this._moveFocus(this.getFocusedTab(), tabToFocus);\n  }\n};\n\n/**\n * Focus the next non-disabled tab.\n * @param {number} focusedTabIndex the index of the currently focused tab\n * @private\n */\nMdNavBarController.prototype._focusNextTab = function(focusedTabIndex) {\n  var tabs = this._getTabs();\n  if (!tabs) return;\n  var tabToFocus = this._findTab(function(tab) {\n    return tab._isEnabled();\n  }, focusedTabIndex + 1);\n  if (tabToFocus) {\n    this._moveFocus(this.getFocusedTab(), tabToFocus);\n  } else {\n    this._focusFirstTab();\n  }\n};\n\n/**\n * Focus the previous non-disabled tab.\n * @param {number} focusedTabIndex the index of the currently focused tab\n * @private\n */\nMdNavBarController.prototype._focusPreviousTab = function(focusedTabIndex) {\n  var tabs = this._getTabs();\n  if (!tabs) return;\n  var tabToFocus = this._findTabReverse(function(tab) {\n    return tab._isEnabled();\n  }, focusedTabIndex - 1);\n  if (tabToFocus) {\n    this._moveFocus(this.getFocusedTab(), tabToFocus);\n  } else {\n    this._focusLastTab();\n  }\n};\n\n/**\n * Responds to keydown events.\n * Calls to preventDefault() stop the page from scrolling when changing focus in the nav-bar.\n * @param {!KeyboardEvent} e\n */\nMdNavBarController.prototype.onKeydown = function(e) {\n  var keyCodes = this._$mdConstant.KEY_CODE;\n  var tabs = this._getTabs();\n  var focusedTab = this.getFocusedTab();\n  if (!focusedTab || !tabs) return;\n\n  var focusedTabIndex = tabs.indexOf(focusedTab);\n\n  // use arrow keys to navigate between tabs\n  switch (e.keyCode) {\n    case keyCodes.UP_ARROW:\n    case keyCodes.LEFT_ARROW:\n      e.preventDefault();\n      this._focusPreviousTab(focusedTabIndex);\n      break;\n    case keyCodes.DOWN_ARROW:\n    case keyCodes.RIGHT_ARROW:\n      e.preventDefault();\n      this._focusNextTab(focusedTabIndex);\n      break;\n    case keyCodes.SPACE:\n    case keyCodes.ENTER:\n      // timeout to avoid a \"digest already in progress\" console error\n      this._$timeout(function() {\n        focusedTab.getButtonEl().click();\n      });\n      break;\n    case keyCodes.HOME:\n      e.preventDefault();\n      this._focusFirstTab();\n      break;\n    case keyCodes.END:\n      e.preventDefault();\n      this._focusLastTab();\n      break;\n  }\n};\n\n/**\n * @ngdoc directive\n * @name mdNavItem\n * @module material.components.navBar\n *\n * @restrict E\n *\n * @description\n * `<md-nav-item>` describes a page navigation link within the `<md-nav-bar>` component.\n * It renders an `<md-button>` as the actual link.\n *\n * Exactly one of the `md-nav-click`, `md-nav-href`, or `md-nav-sref` attributes are required\n * to be specified.\n *\n * @param {string=} nav-item-aria-label Allows setting or overriding the label that is announced by\n *     a screen reader for the nav item's button. If this is not set, the nav item's transcluded\n *     content will be announced. Make sure to set this if the nav item's transcluded content does\n *     not include descriptive text, for example only an icon.\n * @param {expression=} md-nav-click Expression which will be evaluated when the\n *     link is clicked to change the page. Renders as an `ng-click`.\n * @param {string=} md-nav-href url to transition to when this link is clicked.\n *     Renders as an `ng-href`.\n * @param {string=} md-nav-sref UI-Router state to transition to when this link is\n *     clicked. Renders as a `ui-sref`.\n * @param {string} name The name of this link. Used by the nav bar to know\n *     which link is currently selected.\n * @param {!object=} sref-opts UI-Router options that are passed to the `$state.go()` function. See\n *     the <a ng-href=\"https://ui-router.github.io/docs/latest/interfaces/transition.transitionoptions.html\"\n *     target=\"_blank\">UI-Router documentation for details</a>.\n *\n * @usage\n * See <a ng-href=\"api/directive/mdNavBar\">md-nav-bar</a> for usage.\n */\n/**\n * @param $mdAria\n * @param $$rAF\n * @param $mdUtil\n * @param $window\n * @constructor\n * @ngInject\n */\nfunction MdNavItem($mdAria, $$rAF, $mdUtil, $window) {\n  return {\n    restrict: 'E',\n    require: ['mdNavItem', '^mdNavBar'],\n    controller: MdNavItemController,\n    bindToController: true,\n    controllerAs: 'ctrl',\n    replace: true,\n    transclude: true,\n    template: function(tElement, tAttrs) {\n      var hasNavClick = tAttrs.mdNavClick;\n      var hasNavHref = tAttrs.mdNavHref;\n      var hasNavSref = tAttrs.mdNavSref;\n      var hasSrefOpts = tAttrs.srefOpts;\n      var navigationAttribute;\n      var navigationOptions;\n      var buttonTemplate;\n\n      // Cannot specify more than one nav attribute\n      if ((hasNavClick ? 1 : 0) + (hasNavHref ? 1 : 0) + (hasNavSref ? 1 : 0) > 1) {\n        throw Error(\n          'Please do not specify more than one of the md-nav-click, md-nav-href, ' +\n          'or md-nav-sref attributes per nav-item directive.'\n        );\n      }\n\n      if (hasNavClick !== undefined && hasNavClick !== null) {\n        navigationAttribute = 'ng-click=\"ctrl.mdNavClick()\"';\n      } else if (hasNavHref !== undefined && hasNavHref !== null) {\n        navigationAttribute = 'ng-href=\"{{ctrl.mdNavHref}}\"';\n      } else if (hasNavSref !== undefined && hasNavSref !== null) {\n        navigationAttribute = 'ui-sref=\"{{ctrl.mdNavSref}}\"';\n      } else {\n        throw Error(\n          'Please specify at least one of the md-nav-click, md-nav-href, or md-nav-sref ' +\n          'attributes per nav-item directive.');\n      }\n\n      navigationOptions = hasSrefOpts ? 'ui-sref-opts=\"{{ctrl.srefOpts}}\" ' : '';\n\n      if (navigationAttribute) {\n        buttonTemplate = '' +\n          '<md-button class=\"_md-nav-button md-accent\" ' +\n            'ng-class=\"ctrl.getNgClassMap()\" ' +\n            'ng-blur=\"ctrl.setFocused(false)\" ' +\n            'ng-disabled=\"ctrl.disabled\" ' +\n            'tabindex=\"-1\" ' +\n            'role=\"tab\" ' +\n            'ng-attr-aria-label=\"{{ctrl.navItemAriaLabel ? ctrl.navItemAriaLabel : undefined}}\" ' +\n            'aria-selected=\"{{ctrl.isSelected()}}\" ' +\n            navigationOptions +\n            navigationAttribute + '>' +\n            '<span ng-transclude class=\"_md-nav-button-text\"></span>' +\n          '</md-button>';\n      }\n\n      return '' +\n        '<li class=\"md-nav-item\" ' +\n          'role=\"presentation\">' +\n          (buttonTemplate || '') +\n        '</li>';\n    },\n    scope: {\n      'mdNavClick': '&?',\n      'mdNavHref': '@?',\n      'mdNavSref': '@?',\n      'srefOpts': '=?',\n      'name': '@',\n      'navItemAriaLabel': '@?',\n    },\n    link: function(scope, element, attrs, controllers) {\n      var disconnect;\n      var mdNavItem;\n      var mdNavBar;\n      var navButton;\n\n      // When accessing the element's contents synchronously, they\n      // may not be defined yet because of transclusion. There is a higher\n      // chance that it will be accessible if we wait one frame.\n      $$rAF(function() {\n        mdNavItem = controllers[0];\n        mdNavBar = controllers[1];\n        navButton = angular.element(element[0].querySelector('._md-nav-button'));\n\n        if (!mdNavItem.name) {\n          mdNavItem.name = angular.element(element[0]\n              .querySelector('._md-nav-button-text')).text().trim();\n        }\n\n        navButton.on('keydown', function($event) {\n          mdNavBar.onKeydown($event);\n        });\n\n        navButton.on('focus', function() {\n          mdNavItem._focused = true;\n        });\n\n        navButton.on('click', function() {\n          // This triggers a watcher on mdNavBar.mdSelectedNavItem which calls\n          // MdNavBarController._updateTabs() after a $timeout. That function calls\n          // MdNavItemController.setSelected() for the old tab with false and the new tab with true.\n          mdNavBar.mdSelectedNavItem = mdNavItem.name;\n          scope.$apply();\n        });\n\n        // Get the disabled attribute value first, then setup observing of value changes\n        mdNavItem.disabled = $mdUtil.parseAttributeBoolean(attrs['disabled'], false);\n        if ('MutationObserver' in $window) {\n          var config = {attributes: true, attributeFilter: ['disabled']};\n          var targetNode = element[0];\n          var mutationCallback = function(mutationList) {\n            $mdUtil.nextTick(function() {\n              mdNavItem.disabled = $mdUtil.parseAttributeBoolean(attrs[mutationList[0].attributeName], false);\n            });\n          };\n          var observer = new MutationObserver(mutationCallback);\n          observer.observe(targetNode, config);\n          disconnect = observer.disconnect.bind(observer);\n        } else {\n          attrs.$observe('disabled', function (value) {\n            mdNavItem.disabled = $mdUtil.parseAttributeBoolean(value, false);\n          });\n        }\n\n        if (!mdNavItem.navItemAriaLabel) {\n          $mdAria.expectWithText(navButton, 'aria-label');\n        }\n      });\n\n      scope.$on('destroy', function() {\n        navButton.off('keydown');\n        navButton.off('focus');\n        navButton.off('click');\n        disconnect();\n      });\n    }\n  };\n}\n\n/**\n * Controller for the nav-item component.\n * @param {!JQLite} $element\n * @constructor\n * @final\n * @ngInject\n */\nfunction MdNavItemController($element) {\n\n  /**\n   * @private @const\n   * @type {!JQLite}\n   */\n  this._$element = $element;\n\n  // Data-bound variables\n\n  /**\n   * @const\n   * @type {?Function}\n   */\n  this.mdNavClick;\n\n  /**\n   * @const\n   * @type {?string}\n   */\n  this.mdNavHref;\n\n  /**\n   * @const\n   * @type {?string}\n   */\n  this.mdNavSref;\n  /**\n   * @const\n   * @type {?Object}\n   */\n  this.srefOpts;\n  /**\n   * @const\n   * @type {?string}\n   */\n  this.name;\n\n  /**\n   * @const\n   * @type {string}\n   */\n  this.navItemAriaLabel;\n\n  // State variables\n  /**\n   * @private\n   * @type {boolean}\n   */\n  this._selected = false;\n\n  /**\n   * @type {boolean}\n   */\n  this.isFocused = false;\n}\n\n/**\n * Returns a map of class names and values for use by ng-class.\n * @return {!Object<string,boolean>}\n */\nMdNavItemController.prototype.getNgClassMap = function() {\n  return {\n    'md-active': this._selected,\n    'md-primary': this._selected,\n    'md-unselected': !this._selected,\n    'md-focused': this.isFocused,\n  };\n};\n\n/**\n * Get the name attribute of the tab.\n * @return {string}\n */\nMdNavItemController.prototype.getName = function() {\n  return this.name;\n};\n\n/**\n * Get the button element associated with the tab.\n * @return {!Element}\n */\nMdNavItemController.prototype.getButtonEl = function() {\n  return this._$element[0].querySelector('._md-nav-button');\n};\n\n/**\n * Set the selected state of the tab and updates the tabindex.\n * This function is called for the oldTab and newTab when selection changes.\n * @param {boolean} isSelected true to select the tab, false to deselect the tab\n */\nMdNavItemController.prototype.setSelected = function(isSelected) {\n  this._selected = isSelected;\n  if (isSelected) {\n    // https://www.w3.org/TR/wai-aria-practices/examples/tabs/tabs-2/tabs.html suggests that we call\n    // removeAttribute('tabindex') here, but that causes our unit tests to fail due to\n    // document.activeElement staying set to the body instead of the focused nav button.\n    this.getButtonEl().setAttribute('tabindex', '0');\n  } else {\n    this.getButtonEl().setAttribute('tabindex', '-1');\n  }\n};\n\n/**\n * @return {boolean}\n */\nMdNavItemController.prototype.isSelected = function() {\n  return this._selected;\n};\n\n/**\n * Set the focused state of the tab.\n * @param {boolean} isFocused\n */\nMdNavItemController.prototype.setFocused = function(isFocused) {\n  this.isFocused = isFocused;\n\n  if (isFocused) {\n    this.getButtonEl().focus();\n  }\n};\n\n/**\n * @return {boolean} true if the tab has focus, false if not.\n */\nMdNavItemController.prototype.hasFocus = function() {\n  return this.isFocused;\n};\n\n/**\n * @return {boolean} true if the tab is enabled, false if disabled.\n * @private\n */\nMdNavItemController.prototype._isEnabled = function() {\n  return !this._$element.attr('disabled');\n};\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.panel\n */\nMdPanelService.$inject = [\"presets\", \"$rootElement\", \"$rootScope\", \"$injector\", \"$window\"];\nangular\n  .module('material.components.panel', [\n    'material.core',\n    'material.components.backdrop'\n  ])\n  .provider('$mdPanel', MdPanelProvider);\n\n\n/*****************************************************************************\n *                            PUBLIC DOCUMENTATION                           *\n *****************************************************************************/\n\n\n/**\n * @ngdoc service\n * @name $mdPanelProvider\n * @module material.components.panel\n *\n * @description\n * `$mdPanelProvider` allows users to create configuration presets that will be\n * stored within a cached presets object. When the configuration is needed, the\n * user can request the preset by passing it as the first parameter in the\n * `$mdPanel.create` or `$mdPanel.open` methods.\n *\n * @usage\n * <hljs lang=\"js\">\n * (function(angular, undefined) {\n *   'use strict';\n *\n *   angular\n *       .module('demoApp', ['ngMaterial'])\n *       .config(DemoConfig)\n *       .controller('DemoCtrl', DemoCtrl)\n *       .controller('DemoMenuCtrl', DemoMenuCtrl);\n *\n *   function DemoConfig($mdPanelProvider) {\n *     $mdPanelProvider.definePreset('demoPreset', {\n *       attachTo: angular.element(document.body),\n *       controller: DemoMenuCtrl,\n *       controllerAs: 'ctrl',\n *       template: '' +\n *           '<div class=\"menu-panel\" md-whiteframe=\"4\">' +\n *           '  <div class=\"menu-content\">' +\n *           '    <div class=\"menu-item\" ng-repeat=\"item in ctrl.items\">' +\n *           '      <button class=\"md-button\">' +\n *           '        <span>{{item}}</span>' +\n *           '      </button>' +\n *           '    </div>' +\n *           '    <md-divider></md-divider>' +\n *           '    <div class=\"menu-item\">' +\n *           '      <button class=\"md-button\" ng-click=\"ctrl.closeMenu()\">' +\n *           '        <span>Close Menu</span>' +\n *           '      </button>' +\n *           '    </div>' +\n *           '  </div>' +\n *           '</div>',\n *       panelClass: 'menu-panel-container',\n *       focusOnOpen: false,\n *       zIndex: 100,\n *       propagateContainerEvents: true,\n *       groupName: 'menus'\n *     });\n *   }\n *\n *   function PanelProviderCtrl($mdPanel) {\n *     this.navigation = {\n *       name: 'navigation',\n *       items: [\n *         'Home',\n *         'About',\n *         'Contact'\n *       ]\n *     };\n *     this.favorites = {\n *       name: 'favorites',\n *       items: [\n *         'Add to Favorites'\n *       ]\n *     };\n *     this.more = {\n *       name: 'more',\n *       items: [\n *         'Account',\n *         'Sign Out'\n *       ]\n *     };\n *\n *     $mdPanel.newPanelGroup('menus', {\n *       maxOpen: 2\n *     });\n *\n *     this.showMenu = function($event, menu) {\n *       $mdPanel.open('demoPreset', {\n *         id: 'menu_' + menu.name,\n *         position: $mdPanel.newPanelPosition()\n *             .relativeTo($event.target)\n *             .addPanelPosition(\n *               $mdPanel.xPosition.ALIGN_START,\n *               $mdPanel.yPosition.BELOW\n *             ),\n *         locals: {\n *           items: menu.items\n *         },\n *         openFrom: $event\n *       });\n *     };\n *   }\n *\n *   function PanelMenuCtrl(mdPanelRef) {\n *     // 'mdPanelRef' is injected in the controller.\n *     this.closeMenu = function() {\n *       if (mdPanelRef) {\n *         mdPanelRef.close();\n *       }\n *     };\n *   }\n * })(angular);\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name $mdPanelProvider#definePreset\n * @description\n * Takes the passed in preset name and preset configuration object and adds it\n * to the `_presets` object of the provider. This `_presets` object is then\n * passed along to the `$mdPanel` service.\n *\n * @param {string} name Preset name.\n * @param {!Object} preset Specific configuration object that can contain any\n *     and all of the parameters available within the `$mdPanel.create` method.\n *     However, parameters that pertain to id, position, animation, and user\n *     interaction are not allowed and will be removed from the preset\n *     configuration.\n */\n\n\n/*****************************************************************************\n *                               MdPanel Service                             *\n *****************************************************************************/\n\n\n/**\n * @ngdoc service\n * @name $mdPanel\n * @module material.components.panel\n *\n * @description\n * `$mdPanel` is a robust, low-level service for creating floating panels on\n * the screen. It can be used to implement tooltips, dialogs, pop-ups, etc.\n *\n * The following types, referenced below, have separate documentation:\n * - <a ng-href=\"api/type/MdPanelAnimation\">MdPanelAnimation</a> from `$mdPanel.newPanelAnimation()`\n * - <a ng-href=\"api/type/MdPanelPosition\">MdPanelPosition</a> from `$mdPanel.newPanelPosition()`\n * - <a ng-href=\"api/type/MdPanelRef\">MdPanelRef</a> from the `$mdPanel.open()` Promise or\n * injected in the panel's controller\n *\n * @usage\n * <hljs lang=\"js\">\n * (function(angular, undefined) {\n *   'use strict';\n *\n *   angular\n *       .module('demoApp', ['ngMaterial'])\n *       .controller('DemoDialogController', DialogController)\n *       .controller('DemoCtrl', function($mdPanel) {\n *\n *     var panelRef;\n *\n *     function showPanel($event) {\n *       var panelPosition = $mdPanel.newPanelPosition()\n *           .absolute()\n *           .top('50%')\n *           .left('50%');\n *\n *       var panelAnimation = $mdPanel.newPanelAnimation()\n *           .openFrom($event)\n *           .duration(200)\n *           .closeTo('.show-button')\n *           .withAnimation($mdPanel.animation.SCALE);\n *\n *       var config = {\n *         attachTo: angular.element(document.body),\n *         controller: DialogController,\n *         controllerAs: 'ctrl',\n *         position: panelPosition,\n *         animation: panelAnimation,\n *         targetEvent: $event,\n *         templateUrl: 'dialog-template.html',\n *         clickOutsideToClose: true,\n *         escapeToClose: true,\n *         focusOnOpen: true\n *       };\n *\n *       $mdPanel.open(config)\n *           .then(function(result) {\n *             panelRef = result;\n *           });\n *     }\n *   }\n *\n *   function DialogController(MdPanelRef) {\n *     function closeDialog() {\n *       if (MdPanelRef) MdPanelRef.close();\n *     }\n *   }\n * })(angular);\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name $mdPanel#create\n * @description\n * Creates a panel with the specified options.\n *\n * @param {!Object=} config Specific configuration object that may contain the\n *     following properties:\n *\n *   - `id` - `{string=}`: An ID to track the panel by. When an ID is provided,\n *     the created panel is added to a tracked panels object. Any subsequent\n *     requests made to create a panel with that ID are ignored. This is useful\n *     in having the panel service not open multiple panels from the same user\n *     interaction when there is no backdrop and events are propagated. Defaults\n *     to an arbitrary string that is not tracked.\n *   - `template` - `{string=}`: HTML template to show in the panel. This\n *     **must** be trusted HTML with respect to AngularJS’s\n *     [$sce service](https://docs.angularjs.org/api/ng/service/$sce).\n *   - `templateUrl` - `{string=}`: The URL that will be used as the content of\n *     the panel.\n *   - `contentElement` - `{(string|!JQLite|!Element)=}`: Pre-compiled\n *     element to be used as the panel's content.\n *   - `controller` - `{(function|string)=}`: The controller to associate with\n *     the panel. The controller can inject a reference to the returned\n *     panelRef, which allows the panel to be closed, hidden, and shown. Any\n *     fields passed in through locals or resolve will be bound to the\n *     controller.\n *   - `controllerAs` - `{string=}`: An alias to assign the controller to on\n *     the scope.\n *   - `bindToController` - `{boolean=}`: Binds locals to the controller\n *     instead of passing them in. Defaults to true, as this is a best\n *     practice.\n *   - `locals` - `{Object=}`: An object containing key/value pairs. The keys\n *     will be used as names of values to inject into the controller. For\n *     example, `locals: {three: 3}` would inject `three` into the controller,\n *     with the value 3. 'mdPanelRef' is a reserved key, and will always\n *     be set to the created `MdPanelRef` instance.\n *   - `resolve` - `{Object=}`: Similar to locals, except it takes promises as\n *     values. The panel will not open until all of the promises resolve.\n *   - `attachTo` - `{(string|!JQLite|!Element)=}`: The element to\n *     attach the panel to. Defaults to appending to the root element of the\n *     application.\n *   - `propagateContainerEvents` - `{boolean=}`: Whether pointer or touch\n *     events should be allowed to propagate 'go through' the container, aka the\n *     wrapper, of the panel. Defaults to false.\n *   - `panelClass` - `{string=}`: A css class to apply to the panel element.\n *     This class should define any borders, box-shadow, etc. for the panel.\n *   - `zIndex` - `{number=}`: The z-index to place the panel at.\n *     Defaults to 80.\n *   - `position` - `{MdPanelPosition=}`: An MdPanelPosition object that\n *     specifies the alignment of the panel. For more information, see\n *     `MdPanelPosition`.\n *   - `clickOutsideToClose` - `{boolean=}`: Whether the user can click\n *     outside the panel to close it. Defaults to false.\n *   - `escapeToClose` - `{boolean=}`: Whether the user can press escape to\n *     close the panel. Defaults to false.\n *   - `onCloseSuccess` - `{function(!panelRef, string)=}`: Function that is\n *     called after the close successfully finishes. The first parameter passed\n *     into this function is the current panelRef and the 2nd is an optional\n *     string explaining the close reason. The currently supported closeReasons\n *     can be found in the `MdPanelRef.closeReasons` enum. These are by default\n *     passed along by the panel.\n *   - `trapFocus` - `{boolean=}`: Whether focus should be trapped within the\n *     panel. If `trapFocus` is true, the user will not be able to interact\n *     with the rest of the page until the panel is dismissed. Defaults to\n *     false.\n *   - `focusOnOpen` - `{boolean=}`: An option to override focus behavior on\n *     open. Only disable if focusing some other way, as focus management is\n *     required for panels to be accessible. Defaults to true.\n *   - `fullscreen` - `{boolean=}`: Whether the panel should be full screen.\n *     Applies the class `._md-panel-fullscreen` to the panel on open. Defaults\n *     to false.\n *   - `animation` - `{MdPanelAnimation=}`: An MdPanelAnimation object that\n *     specifies the animation of the panel. For more information, see\n *     `MdPanelAnimation`.\n *   - `hasBackdrop` - `{boolean=}`: Whether there should be an opaque backdrop\n *     behind the panel. Defaults to false.\n *   - `disableParentScroll` - `{boolean=}`: Whether the user can scroll the\n *     page behind the panel. Defaults to false.\n *   - `onDomAdded` - `{function=}`: Callback function used to announce when\n *     the panel is added to the DOM.\n *   - `onOpenComplete` - `{function=}`: Callback function used to announce\n *     when the open() action is finished.\n *   - `onRemoving` - `{function=}`: Callback function used to announce the\n *     close/hide() action is starting.\n *   - `onDomRemoved` - `{function=}`: Callback function used to announce when\n *     the panel is removed from the DOM.\n *   - `origin` - `{(string|!JQLite|!Element)=}`: The element to focus\n *     on when the panel closes. This is commonly the element which triggered\n *     the opening of the panel. If you do not use `origin`, you need to control\n *     the focus manually.\n *   - `groupName` - `{(string|!Array<string>)=}`: A group name or an array of\n *     group names. The group name is used for creating a group of panels. The\n *     group is used for configuring the number of open panels and identifying\n *     specific behaviors for groups. For instance, all tooltips could be\n *     identified using the same groupName.\n *\n * @returns {!MdPanelRef} panelRef\n */\n\n/**\n * @ngdoc method\n * @name $mdPanel#open\n * @description\n * Calls the create method above, then opens the panel. This is a shortcut for\n * creating and then calling open manually. If custom methods need to be\n * called when the panel is added to the DOM or opened, do not use this method.\n * Instead create the panel, chain promises on the domAdded and openComplete\n * methods, and call open from the returned panelRef.\n *\n * @param {!Object=} config Specific configuration object that may contain\n *     the properties defined in `$mdPanel.create`.\n * @returns {!Q.IPromise<!MdPanelRef>} panelRef A promise that resolves\n *     to an instance of the panel.\n */\n\n/**\n * @ngdoc method\n * @name $mdPanel#newPanelPosition\n * @description\n * Returns a new instance of the MdPanelPosition object. Use this to create\n * the position config object.\n *\n * @returns {!MdPanelPosition} panelPosition\n */\n\n/**\n * @ngdoc method\n * @name $mdPanel#newPanelAnimation\n * @description\n * Returns a new instance of the MdPanelAnimation object. Use this to create\n * the animation config object.\n *\n * @returns {!MdPanelAnimation} panelAnimation\n */\n\n/**\n * @ngdoc method\n * @name $mdPanel#setGroupMaxOpen\n * @description\n * Sets the maximum number of panels in a group that can be opened at a given\n * time.\n *\n * @param {string} groupName The name of the group to configure.\n * @param {number} maxOpen The maximum number of panels that can be\n *     opened. Infinity can be passed in to remove the maxOpen limit.\n */\n\n\n/*****************************************************************************\n *                                 MdPanelRef                                *\n *****************************************************************************/\n\n\n/**\n * @ngdoc type\n * @name MdPanelRef\n * @module material.components.panel\n * @description\n * A reference to a created panel. This reference contains a unique id for the\n * panel, along with the following properties:\n *\n *   - `id` - `{string}`: The unique id for the panel. This id is used to track\n *     when a panel was interacted with.\n *   - `config` - `{!Object=}`: The entire config object that was used in\n *     create.\n *   - `isAttached` - `{boolean}`: Whether the panel is attached to the DOM.\n *     Visibility to the user does not factor into isAttached.\n *   - `panelContainer` - `{JQLite}`: The wrapper element containing the\n *     panel. This property is added in order to have access to the `addClass`,\n *     `removeClass`, `toggleClass`, etc methods.\n *   - `panelEl` - `{JQLite}`: The panel element. This property is added\n *     in order to have access to the `addClass`, `removeClass`, `toggleClass`,\n *     etc methods.\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#open\n * @description\n * Attaches and shows the panel.\n *\n * @returns {!Q.IPromise} A promise that is resolved when the panel is\n *     opened.\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#close\n * @description\n * Hides and detaches the panel. Note that this will **not** destroy the panel.\n * If you don't intend on using the panel again, call the {@link #destroy\n * destroy} method afterwards.\n *\n * @returns {!Q.IPromise} A promise that is resolved when the panel is\n *     closed.\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#attach\n * @description\n * Create the panel elements and attach them to the DOM. The panel will be\n * hidden by default.\n *\n * @returns {!Q.IPromise} A promise that is resolved when the panel is\n *     attached.\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#detach\n * @description\n * Removes the panel from the DOM. This will NOT hide the panel before removing\n * it.\n *\n * @returns {!Q.IPromise} A promise that is resolved when the panel is\n *     detached.\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#show\n * @description\n * Shows the panel.\n *\n * @returns {!Q.IPromise} A promise that is resolved when the panel has\n *     shown and animations are completed.\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#hide\n * @description\n * Hides the panel.\n *\n * @returns {!Q.IPromise} A promise that is resolved when the panel has\n *     hidden and animations are completed.\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#destroy\n * @description\n * Destroys the panel. The panel cannot be opened again after this is called.\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#updatePosition\n * @description\n * Updates the position configuration of a panel. Use this to update the\n * position of a panel that is open, without having to close and re-open the\n * panel.\n *\n * @param {!MdPanelPosition} position\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#addToGroup\n * @description\n * Adds a panel to a group if the panel does not exist within the group already.\n * A panel can only exist within a single group.\n *\n * @param {string} groupName The name of the group to add the panel to.\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#removeFromGroup\n * @description\n * Removes a panel from a group if the panel exists within that group. The group\n * must be created ahead of time.\n *\n * @param {string} groupName The name of the group.\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#registerInterceptor\n * @description\n * Registers an interceptor with the panel. The callback should return a promise,\n * which will allow the action to continue when it gets resolved, or will\n * prevent an action if it is rejected. The interceptors are called sequentially\n * and it reverse order. `type` must be one of the following\n * values available on `$mdPanel.interceptorTypes`:\n * * `CLOSE` - Gets called before the panel begins closing.\n *\n * @param {string} type Type of interceptor.\n * @param {!Q.IPromise<any>} callback Callback to be registered.\n * @returns {!MdPanelRef}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#removeInterceptor\n * @description\n * Removes a registered interceptor.\n *\n * @param {string} type Type of interceptor to be removed.\n * @param {function(): !Q.IPromise<any>} callback Interceptor to be removed.\n * @returns {!MdPanelRef}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#removeAllInterceptors\n * @description\n * Removes all interceptors. If a type is supplied, only the\n * interceptors of that type will be cleared.\n *\n * @param {string=} type Type of interceptors to be removed.\n * @returns {!MdPanelRef}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelRef#updateAnimation\n * @description\n * Updates the animation configuration for a panel. You can use this to change\n * the panel's animation without having to re-create it.\n *\n * @param {!MdPanelAnimation} animation\n */\n\n\n/*****************************************************************************\n *                               MdPanelPosition                            *\n *****************************************************************************/\n\n\n/**\n * @ngdoc type\n * @name MdPanelPosition\n * @module material.components.panel\n * @description\n *\n * Object for configuring the position of the panel.\n *\n * @usage\n *\n * #### Centering the panel\n *\n * <hljs lang=\"js\">\n * new MdPanelPosition().absolute().center();\n * </hljs>\n *\n * #### Overlapping the panel with an element\n *\n * <hljs lang=\"js\">\n * new MdPanelPosition()\n *     .relativeTo(someElement)\n *     .addPanelPosition(\n *       $mdPanel.xPosition.ALIGN_START,\n *       $mdPanel.yPosition.ALIGN_TOPS\n *     );\n * </hljs>\n *\n * #### Aligning the panel with the bottom of an element\n *\n * <hljs lang=\"js\">\n * new MdPanelPosition()\n *     .relativeTo(someElement)\n *     .addPanelPosition($mdPanel.xPosition.CENTER, $mdPanel.yPosition.BELOW);\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#absolute\n * @description\n * Positions the panel absolutely relative to the parent element. If the parent\n * is document.body, this is equivalent to positioning the panel absolutely\n * within the viewport.\n *\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#relativeTo\n * @description\n * Positions the panel relative to a specific element.\n *\n * @param {string|!Element|!JQLite} element Query selector, DOM element,\n *     or angular element to position the panel with respect to.\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#top\n * @description\n * Sets the value of `top` for the panel. Clears any previously set vertical\n * position.\n *\n * @param {string=} top Value of `top`. Defaults to '0'.\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#bottom\n * @description\n * Sets the value of `bottom` for the panel. Clears any previously set vertical\n * position.\n *\n * @param {string=} bottom Value of `bottom`. Defaults to '0'.\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#start\n * @description\n * Sets the panel to the start of the page - `left` if `ltr` or `right` for\n * `rtl`. Clears any previously set horizontal position.\n *\n * @param {string=} start Value of position. Defaults to '0'.\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#end\n * @description\n * Sets the panel to the end of the page - `right` if `ltr` or `left` for `rtl`.\n * Clears any previously set horizontal position.\n *\n * @param {string=} end Value of position. Defaults to '0'.\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#left\n * @description\n * Sets the value of `left` for the panel. Clears any previously set\n * horizontal position.\n *\n * @param {string=} left Value of `left`. Defaults to '0'.\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#right\n * @description\n * Sets the value of `right` for the panel. Clears any previously set\n * horizontal position.\n *\n * @param {string=} right Value of `right`. Defaults to '0'.\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#centerHorizontally\n * @description\n * Centers the panel horizontally in the viewport. Clears any previously set\n * horizontal position.\n *\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#centerVertically\n * @description\n * Centers the panel vertically in the viewport. Clears any previously set\n * vertical position.\n *\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#center\n * @description\n * Centers the panel horizontally and vertically in the viewport. This is\n * equivalent to calling both `centerHorizontally` and `centerVertically`.\n * Clears any previously set horizontal and vertical positions.\n *\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#addPanelPosition\n * @description\n * Sets the x and y position for the panel relative to another element. Can be\n * called multiple times to specify an ordered list of panel positions. The\n * first position which allows the panel to be completely on-screen will be\n * chosen; the last position will be chose whether it is on-screen or not.\n *\n * xPosition must be one of the following values available on\n * $mdPanel.xPosition:\n *\n *\n * CENTER | ALIGN_START | ALIGN_END | OFFSET_START | OFFSET_END\n *\n * <pre>\n *    *************\n *    *           *\n *    *   PANEL   *\n *    *           *\n *    *************\n *   A B    C    D E\n *\n * A: OFFSET_START (for LTR displays)\n * B: ALIGN_START (for LTR displays)\n * C: CENTER\n * D: ALIGN_END (for LTR displays)\n * E: OFFSET_END (for LTR displays)\n * </pre>\n *\n * yPosition must be one of the following values available on\n * $mdPanel.yPosition:\n *\n * CENTER | ALIGN_TOPS | ALIGN_BOTTOMS | ABOVE | BELOW\n *\n * <pre>\n *   F\n *   G *************\n *     *           *\n *   H *   PANEL   *\n *     *           *\n *   I *************\n *   J\n *\n * F: BELOW\n * G: ALIGN_TOPS\n * H: CENTER\n * I: ALIGN_BOTTOMS\n * J: ABOVE\n * </pre>\n *\n * @param {string} xPosition\n * @param {string} yPosition\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#withOffsetX\n * @description\n * Sets the value of the offset in the x-direction.\n *\n * @param {string|number} offsetX\n * @returns {!MdPanelPosition}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelPosition#withOffsetY\n * @description\n * Sets the value of the offset in the y-direction.\n *\n * @param {string|number} offsetY\n * @returns {!MdPanelPosition}\n */\n\n\n/*****************************************************************************\n *                               MdPanelAnimation                            *\n *****************************************************************************/\n\n\n/**\n * @ngdoc type\n * @name MdPanelAnimation\n * @module material.components.panel\n * @description\n * Animation configuration object. To use, create an MdPanelAnimation with the\n * desired properties, then pass the object as part of $mdPanel creation.\n *\n * @usage\n *\n * <hljs lang=\"js\">\n * var panelAnimation = new MdPanelAnimation()\n *     .openFrom(myButtonEl)\n *     .duration(1337)\n *     .closeTo('.my-button')\n *     .withAnimation($mdPanel.animation.SCALE);\n *\n * $mdPanel.create({\n *   animation: panelAnimation\n * });\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name MdPanelAnimation#openFrom\n * @description\n * Specifies where to start the open animation. `openFrom` accepts a\n * click event object, query selector, DOM element, or a Rect object that\n * is used to determine the bounds. When passed a click event, the location\n * of the click will be used as the position to start the animation.\n *\n * @param {string|!Element|!Event|{top: number, left: number}}\n * @returns {!MdPanelAnimation}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelAnimation#closeTo\n * @description\n * Specifies where to animate the panel close. `closeTo` accepts a\n * query selector, DOM element, or a Rect object that is used to determine\n * the bounds.\n *\n * @param {string|!Element|{top: number, left: number}}\n * @returns {!MdPanelAnimation}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelAnimation#withAnimation\n * @description\n * Specifies the animation class.\n *\n * There are several default animations that can be used: `$mdPanel.animation.`\n *  - `SLIDE`: The panel slides in and out from the specified\n *       elements. It will not fade in or out.\n *  - `SCALE`: The panel scales in and out. Slide and fade are\n *       included in this animation.\n *  - `FADE`: The panel fades in and out.\n *\n * Custom classes will by default fade in and out unless\n * `transition: opacity 1ms` is added to the to custom class.\n *\n * @param {string|{open: string, close: string}} cssClass\n * @returns {!MdPanelAnimation}\n */\n\n/**\n * @ngdoc method\n * @name MdPanelAnimation#duration\n * @description\n * Specifies the duration of the animation in milliseconds. The `duration`\n * method accepts either a number or an object with separate open and close\n * durations.\n *\n * @param {number|{open: number, close: number}} duration\n * @returns {!MdPanelAnimation}\n */\n\n\n/*****************************************************************************\n *                            PUBLIC DOCUMENTATION                           *\n *****************************************************************************/\n\n\nvar MD_PANEL_Z_INDEX = 80;\nvar MD_PANEL_HIDDEN = '_md-panel-hidden';\nvar FOCUS_TRAP_TEMPLATE;\n\nvar _presets = {};\n\n\n/**\n * A provider that is used for creating presets for the panel API.\n * @final @constructor @ngInject\n */\nfunction MdPanelProvider() {\n  return {\n    'definePreset': definePreset,\n    'getAllPresets': getAllPresets,\n    'clearPresets': clearPresets,\n    '$get': $getProvider()\n  };\n}\n\n\n/**\n * Takes the passed in panel configuration object and adds it to the `_presets`\n * object at the specified name.\n * @param {string} name Name of the preset to set.\n * @param {!Object} preset Specific configuration object that can contain any\n *     and all of the parameters available within the `$mdPanel.create` method.\n *     However, parameters that pertain to id, position, animation, and user\n *     interaction are not allowed and will be removed from the preset\n *     configuration.\n */\nfunction definePreset(name, preset) {\n  if (!name || !preset) {\n    throw new Error('mdPanelProvider: The panel preset definition is ' +\n        'malformed. The name and preset object are required.');\n  } else if (_presets.hasOwnProperty(name)) {\n    throw new Error('mdPanelProvider: The panel preset you have requested ' +\n        'has already been defined.');\n  }\n\n  // Delete any property on the preset that is not allowed.\n  delete preset.id;\n  delete preset.position;\n  delete preset.animation;\n\n  _presets[name] = preset;\n}\n\n\n/**\n * Gets a clone of the `_presets`.\n * @return {!Object}\n */\nfunction getAllPresets() {\n  return angular.copy(_presets);\n}\n\n\n/**\n * Clears all of the stored presets.\n */\nfunction clearPresets() {\n  _presets = {};\n}\n\n\n/**\n * Represents the `$get` method of the AngularJS provider. From here, a new\n * reference to the MdPanelService is returned where the needed arguments are\n * passed in including the MdPanelProvider `_presets`.\n * @param {!Object} _presets\n * @param {!JQLite} $rootElement\n * @param {!angular.Scope} $rootScope\n * @param {!IInjectorService} $injector\n * @param {!IWindowService} $window\n */\nfunction $getProvider() {\n  return [\n    '$rootElement', '$rootScope', '$injector', '$window',\n    function($rootElement, $rootScope, $injector, $window) {\n      return new MdPanelService(_presets, $rootElement, $rootScope,\n          $injector, $window);\n    }\n  ];\n}\n\n/**\n * @param {string|[]} value\n * @returns {[]} the input string wrapped in an Array or the original Array\n */\nfunction coerceToArray(value) {\n  if (angular.isString(value)) {\n    value = [value];\n  }\n  return value;\n}\n\n/*****************************************************************************\n *                               MdPanel Service                             *\n *****************************************************************************/\n\n\n/**\n * A service that is used for controlling/displaying panels on the screen.\n * @param {!Object} presets\n * @param {!JQLite} $rootElement\n * @param {!angular.Scope} $rootScope\n * @param {!IInjectorService} $injector\n * @param {!IWindowService} $window\n * @final @constructor @ngInject\n */\nfunction MdPanelService(presets, $rootElement, $rootScope, $injector, $window) {\n  /**\n   * Default config options for the panel.\n   * Anything angular related needs to be done later. Therefore\n   *     scope: $rootScope.$new(true),\n   *     attachTo: $rootElement,\n   * are added later.\n   * @private {!Object}\n   */\n  this._defaultConfigOptions = {\n    bindToController: true,\n    clickOutsideToClose: false,\n    disableParentScroll: false,\n    escapeToClose: false,\n    focusOnOpen: true,\n    fullscreen: false,\n    hasBackdrop: false,\n    propagateContainerEvents: false,\n    transformTemplate: angular.bind(this, this._wrapTemplate),\n    trapFocus: false,\n    zIndex: MD_PANEL_Z_INDEX\n  };\n\n  /** @private {!Object} */\n  this._config = {};\n\n  /** @private {!Object} */\n  this._presets = presets;\n\n  /** @private @const */\n  this._$rootElement = $rootElement;\n\n  /** @private @const */\n  this._$rootScope = $rootScope;\n\n  /** @private @const */\n  this._$injector = $injector;\n\n  /** @private @const */\n  this._$window = $window;\n\n  /** @private @const */\n  this._$mdUtil = this._$injector.get('$mdUtil');\n\n  /** @private {!Object<string, !MdPanelRef>} */\n  this._trackedPanels = {};\n\n  /**\n   * @private {!Object<string,\n   *     {panels: !Array<!MdPanelRef>,\n   *     openPanels: !Array<!MdPanelRef>,\n   *     maxOpen: number}>}\n   */\n  this._groups = Object.create(null);\n\n  /**\n   * Default animations that can be used within the panel.\n   * @type {enum}\n   */\n  this.animation = MdPanelAnimation.animation;\n\n  /**\n   * Possible values of xPosition for positioning the panel relative to\n   * another element.\n   * @type {enum}\n   */\n  this.xPosition = MdPanelPosition.xPosition;\n\n  /**\n   * Possible values of yPosition for positioning the panel relative to\n   * another element.\n   * @type {enum}\n   */\n  this.yPosition = MdPanelPosition.yPosition;\n\n  /**\n   * Possible values for the interceptors that can be registered on a panel.\n   * @type {enum}\n   */\n  this.interceptorTypes = MdPanelRef.interceptorTypes;\n\n  /**\n   * Possible values for closing of a panel.\n   * @type {enum}\n   */\n  this.closeReasons = MdPanelRef.closeReasons;\n\n  /**\n   * Possible values of absolute position.\n   * @type {enum}\n   */\n  this.absPosition = MdPanelPosition.absPosition;\n}\n\n\n/**\n * Creates a panel with the specified options.\n * @param {string|Object=} preset Name of a preset configuration that can be used to\n *     extend the panel configuration.\n * @param {!Object=} config Configuration object for the panel.\n * @returns {!MdPanelRef}\n */\nMdPanelService.prototype.create = function(preset, config) {\n  if (typeof preset === 'string') {\n    preset = this._getPresetByName(preset);\n  } else if (typeof preset === 'object' &&\n      (angular.isUndefined(config) || !config)) {\n    config = preset;\n    preset = {};\n  }\n\n  preset = preset || {};\n  config = config || {};\n\n  // If the passed-in config contains an ID and the ID is within _trackedPanels,\n  // return the tracked panel after updating its config with the passed-in\n  // config.\n  if (angular.isDefined(config.id) && this._trackedPanels[config.id]) {\n    var trackedPanel = this._trackedPanels[config.id];\n    angular.extend(trackedPanel.config, config);\n    return trackedPanel;\n  }\n\n  // Combine the passed-in config, the _defaultConfigOptions, and the preset\n  // configuration into the `_config`.\n  this._config = angular.extend({\n    // If no ID is set within the passed-in config, then create an arbitrary ID.\n    id: config.id || 'panel_' + this._$mdUtil.nextUid(),\n    scope: this._$rootScope.$new(true),\n    attachTo: this._$rootElement\n  }, this._defaultConfigOptions, config, preset);\n\n  // Create the panelRef and add it to the `_trackedPanels` object.\n  var panelRef = new MdPanelRef(this._config, this._$injector);\n  this._trackedPanels[this._config.id] = panelRef;\n\n  // Add the panel to each of its requested groups.\n  if (this._config.groupName) {\n    this._config.groupName = coerceToArray(this._config.groupName);\n    angular.forEach(this._config.groupName, function(group) {\n      panelRef.addToGroup(group);\n    });\n  }\n\n  this._config.scope.$on('$destroy', angular.bind(panelRef, panelRef.detach));\n\n  return panelRef;\n};\n\n\n/**\n * Creates and opens a panel with the specified options.\n * @param {string=} preset Name of a preset configuration that can be used to\n *     extend the panel configuration.\n * @param {!Object=} config Configuration object for the panel.\n * @returns {!Q.IPromise<!MdPanelRef>} The panel created from create.\n */\nMdPanelService.prototype.open = function(preset, config) {\n  var panelRef = this.create(preset, config);\n  return panelRef.open().then(function() {\n    return panelRef;\n  });\n};\n\n\n/**\n * Gets a specific preset configuration object saved within `_presets`.\n * @param {string} preset Name of the preset to search for.\n * @returns {!Object} The preset configuration object.\n */\nMdPanelService.prototype._getPresetByName = function(preset) {\n  if (!this._presets[preset]) {\n    throw new Error('mdPanel: The panel preset configuration that you ' +\n        'requested does not exist. Use the $mdPanelProvider to create a ' +\n        'preset before requesting one.');\n  }\n  return this._presets[preset];\n};\n\n\n/**\n * Returns a new instance of the MdPanelPosition. Use this to create the\n * positioning object.\n * @returns {!MdPanelPosition}\n */\nMdPanelService.prototype.newPanelPosition = function() {\n  return new MdPanelPosition(this._$injector);\n};\n\n\n/**\n * Returns a new instance of the MdPanelAnimation. Use this to create the\n * animation object.\n * @returns {!MdPanelAnimation}\n */\nMdPanelService.prototype.newPanelAnimation = function() {\n  return new MdPanelAnimation(this._$injector);\n};\n\n\n/**\n * @ngdoc method\n * @name $mdPanel#newPanelGroup\n * @description\n * Creates a panel group and adds it to a tracked list of panel groups.\n * @param {string} groupName Name of the group to create.\n * @param {{maxOpen: number}=} config Configuration object that may contain the following\n *  properties:\n *\n *   - `maxOpen`: The maximum number of panels that are allowed open within a defined panel group.\n *\n * @returns {!{panels: !Array<!MdPanelRef>, openPanels: !Array<!MdPanelRef>, maxOpen: number}}\n *  the new panel group\n */\nMdPanelService.prototype.newPanelGroup = function(groupName, config) {\n  if (!this._groups[groupName]) {\n    config = config || {};\n    this._groups[groupName] = {\n      panels: [],\n      openPanels: [],\n      maxOpen: config.maxOpen > 0 ? config.maxOpen : Infinity\n    };\n  }\n  return this._groups[groupName];\n};\n\n\n/**\n * Sets the maximum number of panels in a group that can be opened at a given\n * time.\n * @param {string} groupName The name of the group to configure.\n * @param {number} maxOpen The maximum number of panels that can be\n *     opened. Infinity can be passed in to remove the maxOpen limit.\n */\nMdPanelService.prototype.setGroupMaxOpen = function(groupName, maxOpen) {\n  if (this._groups[groupName]) {\n    this._groups[groupName].maxOpen = maxOpen;\n  } else {\n    throw new Error('mdPanel: Group does not exist yet. Call newPanelGroup().');\n  }\n};\n\n\n/**\n * Determines if the current number of open panels within a group exceeds the\n * limit of allowed open panels.\n * @param {string} groupName The name of the group to check.\n * @returns {boolean} true if open count does exceed maxOpen and false if not.\n * @private\n */\nMdPanelService.prototype._openCountExceedsMaxOpen = function(groupName) {\n  if (this._groups[groupName]) {\n    var group = this._groups[groupName];\n    return group.maxOpen > 0 && group.openPanels.length > group.maxOpen;\n  }\n  return false;\n};\n\n\n/**\n * Closes the first open panel within a specific group.\n * @param {string} groupName The name of the group.\n * @private\n */\nMdPanelService.prototype._closeFirstOpenedPanel = function(groupName) {\n  var group = this._groups[groupName];\n  if (group && group.openPanels.length) {\n    group.openPanels[0].close();\n  }\n};\n\n\n/**\n * Wraps the user's template in three elements:\n * - md-panel-outer-wrapper - covers the entire `attachTo` element.\n * - md-panel-inner-wrapper - handles the positioning.\n * - md-panel - contains the user's content and deals with the animations.\n * @param {string} origTemplate The original template.\n * @returns {string} The wrapped template.\n * @private\n */\nMdPanelService.prototype._wrapTemplate = function(origTemplate) {\n  var template = origTemplate || '';\n\n  // The panel should be initially rendered offscreen so we can calculate\n  // height and width for positioning.\n  return '' +\n      '<div class=\"md-panel-outer-wrapper\">' +\n        '<div class=\"md-panel-inner-wrapper _md-panel-offscreen\">' +\n          '<div class=\"md-panel _md-panel-offscreen\">' + template + '</div>' +\n        '</div>' +\n      '</div>';\n};\n\n\n/**\n * Wraps a content element in a `md-panel-outer-wrapper`, as well as\n * a `md-panel-inner-wrapper`, and positions it off-screen. Allows for\n * proper control over positioning and animations.\n * @param {!JQLite} contentElement Element to be wrapped.\n * @return {!JQLite} Wrapper element.\n * @private\n */\nMdPanelService.prototype._wrapContentElement = function(contentElement) {\n  var outerWrapper = angular.element(\n    '<div class=\"md-panel-outer-wrapper\">' +\n      '<div class=\"md-panel-inner-wrapper _md-panel-offscreen\"></div>' +\n    '</div>'\n  );\n\n  contentElement.addClass('md-panel _md-panel-offscreen');\n  outerWrapper.children().eq(0).append(contentElement);\n\n  return outerWrapper;\n};\n\n\n/*****************************************************************************\n *                                 MdPanelRef                                *\n *****************************************************************************/\n\n\n/**\n * A reference to a created panel. This reference contains a unique id for the\n * panel, along with properties/functions used to control the panel.\n * @param {!Object} config\n * @param {!IInjectorService} $injector\n * @final @constructor\n */\nfunction MdPanelRef(config, $injector) {\n  // Injected variables.\n  /** @private @const {!IQService} */\n  this._$q = $injector.get('$q');\n\n  /** @private @const {!angular.$mdCompiler} */\n  this._$mdCompiler = $injector.get('$mdCompiler');\n\n  /** @private @const {!angular.$mdConstant} */\n  this._$mdConstant = $injector.get('$mdConstant');\n\n  /** @private @const {!angular.$mdUtil} */\n  this._$mdUtil = $injector.get('$mdUtil');\n\n  /** @private @const {!angular.$mdTheming} */\n  this._$mdTheming = $injector.get('$mdTheming');\n\n  /** @private @const {!IRootScopeService} */\n  this._$rootScope = $injector.get('$rootScope');\n\n  /** @private @const {!angular.$animate} */\n  this._$animate = $injector.get('$animate');\n\n  /** @private @const {!MdPanelRef} */\n  this._$mdPanel = $injector.get('$mdPanel');\n\n  /** @private @const {!ILogService} */\n  this._$log = $injector.get('$log');\n\n  /** @private @const {!IWindowService} */\n  this._$window = $injector.get('$window');\n\n  /** @private @const {!Function} */\n  this._$$rAF = $injector.get('$$rAF');\n\n  // Public variables.\n  /**\n   * Unique id for the panelRef.\n   * @type {string}\n   */\n  this.id = config.id;\n\n  /** @type {!Object} */\n  this.config = config;\n\n  /** @type {!JQLite|undefined} */\n  this.panelContainer = undefined;\n\n  /** @type {!JQLite|undefined} */\n  this.panelEl = undefined;\n\n  /** @type {!JQLite|undefined} */\n  this.innerWrapper = undefined;\n\n  /**\n   * Whether the panel is attached. This is synchronous. When attach is called,\n   * isAttached is set to true. When detach is called, isAttached is set to\n   * false.\n   * @type {boolean}\n   */\n  this.isAttached = false;\n\n  // Private variables.\n  /** @private {Array<function()>} */\n  this._removeListeners = [];\n\n  /** @private {!JQLite|undefined} */\n  this._topFocusTrap = undefined;\n\n  /** @private {!JQLite|undefined} */\n  this._bottomFocusTrap = undefined;\n\n  /** @private {!$mdPanel|undefined} */\n  this._backdropRef = undefined;\n\n  /** @private {Function?} */\n  this._restoreScroll = null;\n\n  /**\n   * Keeps track of all the panel interceptors.\n   * @private {!Object}\n   */\n  this._interceptors = Object.create(null);\n\n  /**\n   * Cleanup function, provided by `$mdCompiler` and assigned after the element\n   * has been compiled. When `contentElement` is used, the function is used to\n   * restore the element to it's proper place in the DOM.\n   * @private {Function|null}\n   */\n  this._compilerCleanup = null;\n\n  /**\n   * Cache for saving and restoring element inline styles, CSS classes etc.\n   * @type {{styles: string, classes: string}}\n   */\n  this._restoreCache = {\n    styles: '',\n    classes: ''\n  };\n}\n\n\nMdPanelRef.interceptorTypes = {\n  CLOSE: 'onClose'\n};\n\n\n/**\n * Opens an already created and configured panel. If the panel is already\n * visible, does nothing.\n * @returns {!Q.IPromise<!MdPanelRef>} A promise that is resolved when\n *     the panel is opened and animations finish.\n */\nMdPanelRef.prototype.open = function() {\n  var self = this;\n  return this._$q(function(resolve, reject) {\n    var done = self._done(resolve, self);\n    var show = self._simpleBind(self.show, self);\n    var checkGroupMaxOpen = function() {\n      if (self.config.groupName) {\n        self.config.groupName = coerceToArray(self.config.groupName);\n        angular.forEach(self.config.groupName, function(group) {\n          if (self._$mdPanel._openCountExceedsMaxOpen(group)) {\n            self._$mdPanel._closeFirstOpenedPanel(group);\n          }\n        });\n      }\n    };\n\n    self.attach()\n        .then(show)\n        .then(checkGroupMaxOpen)\n        .then(done)\n        .catch(reject);\n  });\n};\n\n\n/**\n * Closes the panel.\n * @param {string} closeReason The event type that triggered the close.\n * @returns {!Q.IPromise<!MdPanelRef>} A promise that is resolved when\n *     the panel is closed and animations finish.\n */\nMdPanelRef.prototype.close = function(closeReason) {\n  var self = this;\n\n  return this._$q(function(resolve, reject) {\n    self._callInterceptors(MdPanelRef.interceptorTypes.CLOSE).then(function() {\n      var done = self._done(resolve, self);\n      var detach = self._simpleBind(self.detach, self);\n      var onCloseSuccess = self.config['onCloseSuccess'] || angular.noop;\n      onCloseSuccess = angular.bind(self, onCloseSuccess, self, closeReason);\n\n      self.hide()\n          .then(detach)\n          .then(done)\n          .then(onCloseSuccess)\n          .catch(reject);\n    }, reject);\n  });\n};\n\n\n/**\n * Attaches the panel. The panel will be hidden afterwards.\n * @returns {!Q.IPromise<!MdPanelRef>} A promise that is resolved when\n *     the panel is attached.\n */\nMdPanelRef.prototype.attach = function() {\n  if (this.isAttached && this.panelEl) {\n    return this._$q.when(this);\n  }\n\n  var self = this;\n  return this._$q(function(resolve, reject) {\n    var done = self._done(resolve, self);\n    var onDomAdded = self.config['onDomAdded'] || angular.noop;\n    var addListeners = function(response) {\n      self.isAttached = true;\n      self._addEventListeners();\n      return response;\n    };\n\n    self._$q.all([\n        self._createBackdrop(),\n        self._createPanel()\n            .then(addListeners)\n            .catch(reject)\n    ]).then(onDomAdded)\n      .then(done)\n      .catch(reject);\n  });\n};\n\n\n/**\n * Only detaches the panel. Will NOT hide the panel first.\n * @returns {!Q.IPromise<!MdPanelRef>} A promise that is resolved when\n *     the panel is detached.\n */\nMdPanelRef.prototype.detach = function() {\n  if (!this.isAttached) {\n    return this._$q.when(this);\n  }\n\n  var self = this;\n  var onDomRemoved = self.config['onDomRemoved'] || angular.noop;\n\n  var detachFn = function() {\n    self._removeEventListeners();\n\n    // Remove the focus traps that we added earlier for keeping focus within\n    // the panel.\n    if (self._topFocusTrap && self._topFocusTrap.parentNode) {\n      self._topFocusTrap.parentNode.removeChild(self._topFocusTrap);\n    }\n\n    if (self._bottomFocusTrap && self._bottomFocusTrap.parentNode) {\n      self._bottomFocusTrap.parentNode.removeChild(self._bottomFocusTrap);\n    }\n\n    if (self._restoreCache.classes) {\n      self.panelEl[0].className = self._restoreCache.classes;\n    }\n\n    // Either restore the saved styles or clear the ones set by mdPanel.\n    self.panelEl[0].style.cssText = self._restoreCache.styles || '';\n\n    self._compilerCleanup();\n    self.panelContainer.remove();\n    self.isAttached = false;\n    return self._$q.when(self);\n  };\n\n  if (this._restoreScroll) {\n    this._restoreScroll();\n    this._restoreScroll = null;\n  }\n\n  return this._$q(function(resolve, reject) {\n    var done = self._done(resolve, self);\n\n    self._$q.all([\n      detachFn(),\n      self._backdropRef ? self._backdropRef.detach() : true\n    ]).then(onDomRemoved)\n      .then(done)\n      .catch(reject);\n  });\n};\n\n\n/**\n * Destroys the panel. The Panel cannot be opened again after this.\n */\nMdPanelRef.prototype.destroy = function() {\n  var self = this;\n  if (this.config.groupName) {\n    this.config.groupName = coerceToArray(this.config.groupName);\n    angular.forEach(this.config.groupName, function(group) {\n      self.removeFromGroup(group);\n    });\n  }\n  this.config.scope.$destroy();\n  this.config.locals = null;\n  this.config.onDomAdded = null;\n  this.config.onDomRemoved = null;\n  this.config.onRemoving = null;\n  this.config.onOpenComplete = null;\n  this._interceptors = undefined;\n};\n\n\n/**\n * Shows the panel.\n * @returns {!Q.IPromise<!MdPanelRef>} A promise that is resolved when\n *     the panel has shown and animations finish.\n */\nMdPanelRef.prototype.show = function() {\n  if (!this.panelContainer) {\n    return this._$q(function(resolve, reject) {\n      reject('mdPanel: Panel does not exist yet. Call open() or attach().');\n    });\n  }\n\n  if (!this.panelContainer.hasClass(MD_PANEL_HIDDEN)) {\n    return this._$q.when(this);\n  }\n\n  var self = this;\n  var animatePromise = function() {\n    self.panelContainer.removeClass(MD_PANEL_HIDDEN);\n    return self._animateOpen();\n  };\n\n  return this._$q(function(resolve, reject) {\n    var done = self._done(resolve, self);\n    var onOpenComplete = self.config['onOpenComplete'] || angular.noop;\n    var addToGroupOpen = function() {\n      if (self.config.groupName) {\n        self.config.groupName = coerceToArray(self.config.groupName);\n        angular.forEach(self.config.groupName, function(group) {\n          group = self._$mdPanel._groups[group];\n          if (group) {\n            group.openPanels.push(self);\n          }\n        });\n      }\n    };\n\n    self._$q.all([\n      self._backdropRef ? self._backdropRef.show() : self,\n      animatePromise().then(function() { self._focusOnOpen(); }, reject)\n    ]).then(onOpenComplete)\n      .then(addToGroupOpen)\n      .then(done)\n      .catch(reject);\n  });\n};\n\n\n/**\n * Hides the panel.\n * @returns {!Q.IPromise<!MdPanelRef>} A promise that is resolved when\n *     the panel has hidden and animations finish.\n */\nMdPanelRef.prototype.hide = function() {\n  if (!this.panelContainer) {\n    return this._$q(function(resolve, reject) {\n      reject('mdPanel: Panel does not exist yet. Call open() or attach().');\n    });\n  }\n\n  if (this.panelContainer.hasClass(MD_PANEL_HIDDEN)) {\n    return this._$q.when(this);\n  }\n\n  var self = this;\n\n  return this._$q(function(resolve, reject) {\n    var done = self._done(resolve, self);\n    var onRemoving = self.config['onRemoving'] || angular.noop;\n    var hidePanel = function() {\n      self.panelContainer.addClass(MD_PANEL_HIDDEN);\n    };\n    var removeFromGroupOpen = function() {\n      if (self.config.groupName) {\n        var index;\n        self.config.groupName = coerceToArray(self.config.groupName);\n        angular.forEach(self.config.groupName, function(group) {\n          group = self._$mdPanel._groups[group];\n          index = group.openPanels.indexOf(self);\n          if (index > -1) {\n            group.openPanels.splice(index, 1);\n          }\n        });\n      }\n    };\n    var focusOnOrigin = function() {\n      var origin = self.config['origin'];\n      if (origin) {\n        getElement(origin).focus();\n      }\n    };\n\n    self._$q.all([\n      self._backdropRef ? self._backdropRef.hide() : self,\n      self._animateClose()\n          .then(onRemoving)\n          .then(hidePanel)\n          .then(removeFromGroupOpen)\n          .then(focusOnOrigin)\n          .catch(reject)\n    ]).then(done, reject);\n  });\n};\n\n/**\n * Compiles the panel, according to the passed in config and appends it to\n * the DOM. Helps normalize differences in the compilation process between\n * using a string template and a content element.\n * @returns {!Q.IPromise<!MdPanelRef>} Promise that is resolved when\n *     the element has been compiled and added to the DOM.\n * @private\n */\nMdPanelRef.prototype._compile = function() {\n  var self = this;\n\n  // Compile the element via $mdCompiler. Note that when using a\n  // contentElement, the element isn't actually being compiled, rather the\n  // compiler saves it's place in the DOM and provides a way of restoring it.\n  return self._$mdCompiler.compile(self.config).then(function(compileData) {\n    var config = self.config;\n\n    if (config.contentElement) {\n      var panelEl = compileData.element;\n\n      // Since mdPanel modifies the inline styles and CSS classes, we need\n      // to save them in order to be able to restore on close.\n      self._restoreCache.styles = panelEl[0].style.cssText;\n      self._restoreCache.classes = panelEl[0].className;\n\n      self.panelContainer = self._$mdPanel._wrapContentElement(panelEl);\n      self.panelEl = panelEl;\n    } else {\n      self.panelContainer = compileData.link(config['scope']);\n      self.panelEl = angular.element(\n        self.panelContainer[0].querySelector('.md-panel')\n      );\n    }\n\n    // Save a reference to the inner wrapper.\n    self.innerWrapper = angular.element(\n      self.panelContainer[0].querySelector('.md-panel-inner-wrapper')\n    );\n\n    // Save a reference to the cleanup function from the compiler.\n    self._compilerCleanup = compileData.cleanup;\n\n    // Attach the panel to the proper place in the DOM.\n    getElement(self.config['attachTo']).append(self.panelContainer);\n\n    return self;\n  });\n};\n\n\n/**\n * Creates a panel and adds it to the dom.\n * @returns {!Q.IPromise} A promise that is resolved when the panel is\n *     created.\n * @private\n */\nMdPanelRef.prototype._createPanel = function() {\n  var self = this;\n\n  return this._$q(function(resolve, reject) {\n    if (!self.config.locals) {\n      self.config.locals = {};\n    }\n\n    self.config.locals.mdPanelRef = self;\n\n    self._compile().then(function() {\n      if (self.config['disableParentScroll']) {\n        self._restoreScroll = self._$mdUtil.disableScrollAround(\n          null,\n          self.panelContainer,\n          { disableScrollMask: true }\n        );\n      }\n\n      // Add a custom CSS class to the panel element.\n      if (self.config['panelClass']) {\n        self.panelEl.addClass(self.config['panelClass']);\n      }\n\n      // Handle click and touch events for the panel container.\n      if (self.config['propagateContainerEvents']) {\n        self.panelContainer.css('pointer-events', 'none');\n        self.panelEl.css('pointer-events', 'all');\n      }\n\n      // Panel may be outside the $rootElement, tell ngAnimate to animate\n      // regardless.\n      if (self._$animate.pin) {\n        self._$animate.pin(\n          self.panelContainer,\n          getElement(self.config['attachTo'])\n        );\n      }\n\n      self._configureTrapFocus();\n      self._addStyles().then(function() {\n        resolve(self);\n      }, reject);\n    }, reject);\n\n  });\n};\n\n\n/**\n * Adds the styles for the panel, such as positioning and z-index. Also,\n * themes the panel element and panel container using `$mdTheming`.\n * @returns {!Q.IPromise<!MdPanelRef>}\n * @private\n */\nMdPanelRef.prototype._addStyles = function() {\n  var self = this;\n  return this._$q(function(resolve) {\n    self.panelContainer.css('z-index', self.config['zIndex']);\n    self.innerWrapper.css('z-index', self.config['zIndex'] + 1);\n\n    var hideAndResolve = function() {\n      // Theme the element and container.\n      self._setTheming();\n\n      // Remove offscreen classes and add hidden class.\n      self.panelEl.removeClass('_md-panel-offscreen');\n      self.innerWrapper.removeClass('_md-panel-offscreen');\n      self.panelContainer.addClass(MD_PANEL_HIDDEN);\n\n      resolve(self);\n    };\n\n    if (self.config['fullscreen']) {\n      self.panelEl.addClass('_md-panel-fullscreen');\n      hideAndResolve();\n      return; // Don't setup positioning.\n    }\n\n    var positionConfig = self.config['position'];\n    if (!positionConfig) {\n      hideAndResolve();\n      return; // Don't setup positioning.\n    }\n\n    // Wait for angular to finish processing the template\n    self._$rootScope['$$postDigest'](function() {\n      // Position it correctly. This is necessary so that the panel will have a\n      // defined height and width.\n      self._updatePosition(true);\n\n      // Theme the element and container.\n      self._setTheming();\n\n      resolve(self);\n    });\n  });\n};\n\n\n/**\n * Sets the `$mdTheming` classes on the `panelContainer` and `panelEl`.\n * @private\n */\nMdPanelRef.prototype._setTheming = function() {\n  this._$mdTheming(this.panelEl);\n  this._$mdTheming(this.panelContainer);\n};\n\n\n/**\n * Updates the position configuration of a panel\n * @param {!MdPanelPosition} position\n */\nMdPanelRef.prototype.updatePosition = function(position) {\n  if (!this.panelContainer) {\n    throw new Error(\n        'mdPanel: Panel does not exist yet. Call open() or attach().');\n  }\n\n  this.config['position'] = position;\n  this._updatePosition();\n};\n\n\n/**\n * Calculates and updates the position of the panel.\n * @param {boolean=} init\n * @private\n */\nMdPanelRef.prototype._updatePosition = function(init) {\n  var positionConfig = this.config['position'];\n\n  if (positionConfig) {\n    positionConfig._setPanelPosition(this.innerWrapper);\n\n    // Hide the panel now that position is known.\n    if (init) {\n      this.panelEl.removeClass('_md-panel-offscreen');\n      this.innerWrapper.removeClass('_md-panel-offscreen');\n      this.panelContainer.addClass(MD_PANEL_HIDDEN);\n    }\n\n    this.innerWrapper.css(\n      MdPanelPosition.absPosition.TOP,\n      positionConfig.getTop()\n    );\n    this.innerWrapper.css(\n      MdPanelPosition.absPosition.BOTTOM,\n      positionConfig.getBottom()\n    );\n    this.innerWrapper.css(\n      MdPanelPosition.absPosition.LEFT,\n      positionConfig.getLeft()\n    );\n    this.innerWrapper.css(\n      MdPanelPosition.absPosition.RIGHT,\n      positionConfig.getRight()\n    );\n  }\n};\n\n\n/**\n * Focuses on the panel or the first focus target.\n * @private\n */\nMdPanelRef.prototype._focusOnOpen = function() {\n  if (this.config['focusOnOpen']) {\n    // Wait for the template to finish rendering to guarantee md-autofocus has\n    // finished adding the class md-autofocus, otherwise the focusable element\n    // isn't available to focus.\n    var self = this;\n    this._$rootScope['$$postDigest'](function() {\n      var target = self._$mdUtil.findFocusTarget(self.panelEl) ||\n          self.panelEl;\n      target.focus();\n    });\n  }\n};\n\n\n/**\n * Shows the backdrop.\n * @returns {!Q.IPromise} A promise that is resolved when the backdrop\n *     is created and attached.\n * @private\n */\nMdPanelRef.prototype._createBackdrop = function() {\n  if (this.config.hasBackdrop) {\n    if (!this._backdropRef) {\n      var backdropAnimation = this._$mdPanel.newPanelAnimation()\n          .openFrom(this.config.attachTo)\n          .withAnimation({\n            open: '_md-opaque-enter',\n            close: '_md-opaque-leave'\n          });\n\n      if (this.config.animation) {\n        backdropAnimation.duration(this.config.animation._rawDuration);\n      }\n\n      var backdropConfig = {\n        animation: backdropAnimation,\n        attachTo: this.config.attachTo,\n        focusOnOpen: false,\n        panelClass: '_md-panel-backdrop',\n        zIndex: this.config.zIndex - 1\n      };\n\n      this._backdropRef = this._$mdPanel.create(backdropConfig);\n    }\n    if (!this._backdropRef.isAttached) {\n      return this._backdropRef.attach();\n    }\n  }\n};\n\n\n/**\n * Listen for escape keys and outside clicks to auto close.\n * @private\n */\nMdPanelRef.prototype._addEventListeners = function() {\n  this._configureEscapeToClose();\n  this._configureClickOutsideToClose();\n  this._configureScrollListener();\n};\n\n\n/**\n * Remove event listeners added in _addEventListeners.\n * @private\n */\nMdPanelRef.prototype._removeEventListeners = function() {\n  this._removeListeners && this._removeListeners.forEach(function(removeFn) {\n    removeFn();\n  });\n  this._removeListeners = [];\n};\n\n\n/**\n * Setup the escapeToClose event listeners.\n * @private\n */\nMdPanelRef.prototype._configureEscapeToClose = function() {\n  if (this.config['escapeToClose']) {\n    var parentTarget = getElement(this.config['attachTo']);\n    var self = this;\n\n    var keyHandlerFn = function(ev) {\n      if (ev.keyCode === self._$mdConstant.KEY_CODE.ESCAPE) {\n        ev.stopPropagation();\n        ev.preventDefault();\n\n        self.close(MdPanelRef.closeReasons.ESCAPE);\n      }\n    };\n\n    // Add keydown listeners\n    this.panelContainer.on('keydown', keyHandlerFn);\n    parentTarget.on('keydown', keyHandlerFn);\n\n    // Queue remove listeners function\n    this._removeListeners.push(function() {\n      self.panelContainer.off('keydown', keyHandlerFn);\n      parentTarget.off('keydown', keyHandlerFn);\n    });\n  }\n};\n\n\n/**\n * Setup the clickOutsideToClose event listeners.\n * @private\n */\nMdPanelRef.prototype._configureClickOutsideToClose = function() {\n  if (this.config['clickOutsideToClose']) {\n    var target = this.config['propagateContainerEvents'] ?\n        angular.element(document.body) :\n        this.panelContainer;\n    var sourceEl;\n\n    // Keep track of the element on which the mouse originally went down\n    // so that we can only close the backdrop when the 'click' started on it.\n    // A simple 'click' handler does not work, it sets the target object as the\n    // element the mouse went down on.\n    var mousedownHandler = function(ev) {\n      sourceEl = ev.target;\n    };\n\n    // We check if our original element and the target is the backdrop\n    // because if the original was the backdrop and the target was inside the\n    // panel we don't want to panel to close.\n    var self = this;\n    var mouseupHandler = function(ev) {\n      if (self.config['propagateContainerEvents']) {\n\n        // We check if the sourceEl of the event is the panel element or one\n        // of it's children. If it is not, then close the panel.\n        if (sourceEl !== self.panelEl[0] && !self.panelEl[0].contains(sourceEl)) {\n          self.close();\n        }\n\n      } else if (sourceEl === target[0] && ev.target === target[0]) {\n        ev.stopPropagation();\n        ev.preventDefault();\n\n        self.close(MdPanelRef.closeReasons.CLICK_OUTSIDE);\n      }\n    };\n\n    // Add listeners\n    target.on('mousedown', mousedownHandler);\n    target.on('mouseup', mouseupHandler);\n\n    // Queue remove listeners function\n    this._removeListeners.push(function() {\n      target.off('mousedown', mousedownHandler);\n      target.off('mouseup', mouseupHandler);\n    });\n  }\n};\n\n\n/**\n * Configures the listeners for updating the panel position on scroll.\n * @private\n*/\nMdPanelRef.prototype._configureScrollListener = function() {\n  // No need to bind the event if scrolling is disabled.\n  if (!this.config['disableParentScroll']) {\n    var updatePosition = angular.bind(this, this._updatePosition);\n    var debouncedUpdatePosition = this._$$rAF.throttle(updatePosition);\n    var self = this;\n\n    var onScroll = function() {\n      debouncedUpdatePosition();\n    };\n\n    // Add listeners.\n    this._$window.addEventListener('scroll', onScroll, true);\n\n    // Queue remove listeners function.\n    this._removeListeners.push(function() {\n      self._$window.removeEventListener('scroll', onScroll, true);\n    });\n  }\n};\n\n\n/**\n * Setup the focus traps. These traps will wrap focus when tabbing past the\n * panel. When shift-tabbing, the focus will stick in place.\n * @private\n */\nMdPanelRef.prototype._configureTrapFocus = function() {\n  // Focus doesn't remain inside of the panel without this.\n  this.panelEl.attr('tabIndex', '-1');\n  if (this.config['trapFocus']) {\n    var element = this.panelEl;\n    // Set up elements before and after the panel to capture focus and\n    // redirect back into the panel.\n    if (!FOCUS_TRAP_TEMPLATE) {\n      var template = document.createElement('div');\n      template.className = '_md-panel-focus-trap';\n      template.tabIndex = 0;\n      FOCUS_TRAP_TEMPLATE = angular.element(template);\n    }\n    this._topFocusTrap = FOCUS_TRAP_TEMPLATE.clone()[0];\n    this._bottomFocusTrap = FOCUS_TRAP_TEMPLATE.clone()[0];\n\n    // When focus is about to move out of the panel, we want to intercept it\n    // and redirect it back to the panel element.\n    var focusHandler = function() {\n      element.focus();\n    };\n    this._topFocusTrap.addEventListener('focus', focusHandler);\n    this._bottomFocusTrap.addEventListener('focus', focusHandler);\n\n    // Queue remove listeners function\n    this._removeListeners.push(this._simpleBind(function() {\n      this._topFocusTrap.removeEventListener('focus', focusHandler);\n      this._bottomFocusTrap.removeEventListener('focus', focusHandler);\n    }, this));\n\n    // The top focus trap inserted immediately before the md-panel element (as\n    // a sibling). The bottom focus trap inserted immediately after the\n    // md-panel element (as a sibling).\n    element[0].parentNode.insertBefore(this._topFocusTrap, element[0]);\n    element.after(this._bottomFocusTrap);\n  }\n};\n\n\n/**\n * Updates the animation of a panel.\n * @param {!MdPanelAnimation} animation\n */\nMdPanelRef.prototype.updateAnimation = function(animation) {\n  this.config['animation'] = animation;\n\n  if (this._backdropRef) {\n    this._backdropRef.config.animation.duration(animation._rawDuration);\n  }\n};\n\n\n/**\n * Animate the panel opening.\n * @returns {!Q.IPromise} A promise that is resolved when the panel has\n *     animated open.\n * @private\n */\nMdPanelRef.prototype._animateOpen = function() {\n  this.panelContainer.addClass('md-panel-is-showing');\n  var animationConfig = this.config['animation'];\n  if (!animationConfig) {\n    // Promise is in progress, return it.\n    this.panelContainer.addClass('_md-panel-shown');\n    return this._$q.when(this);\n  }\n\n  var self = this;\n  return this._$q(function(resolve) {\n    var done = self._done(resolve, self);\n    var warnAndOpen = function() {\n      self._$log.warn(\n          'mdPanel: MdPanel Animations failed. ' +\n          'Showing panel without animating.');\n      done();\n    };\n\n    animationConfig.animateOpen(self.panelEl)\n        .then(done, warnAndOpen);\n  });\n};\n\n\n/**\n * Animate the panel closing.\n * @returns {!Q.IPromise} A promise that is resolved when the panel has animated closed.\n * @private\n */\nMdPanelRef.prototype._animateClose = function() {\n  var self = this;\n  var animationConfig = this.config['animation'];\n\n  if (!animationConfig) {\n    this.panelContainer.removeClass('md-panel-is-showing');\n    this.panelContainer.removeClass('_md-panel-shown');\n    return this._$q.when(this);\n  } else {\n    return this._$q(function (resolve) {\n      var done = function () {\n        self.panelContainer.removeClass('md-panel-is-showing');\n        // Remove the transform so that re-used panels don't accumulate transforms.\n        self.panelEl.css('transform', '');\n        resolve(self);\n      };\n      var warnAndClose = function () {\n        self._$log.warn(\n          'mdPanel: MdPanel Animations failed. Hiding panel without animating.');\n        done();\n      };\n\n      animationConfig.animateClose(self.panelEl).then(done, warnAndClose);\n    });\n  }\n};\n\n\n/**\n * Registers a interceptor with the panel. The callback should return a promise,\n * which will allow the action to continue when it gets resolved, or will\n * prevent an action if it is rejected.\n * @param {string} type Type of interceptor.\n * @param {!Q.IPromise<!any>} callback Callback to be registered.\n * @returns {!MdPanelRef}\n */\nMdPanelRef.prototype.registerInterceptor = function(type, callback) {\n  var error = null;\n\n  if (!angular.isString(type)) {\n    error = 'Interceptor type must be a string, instead got ' + typeof type;\n  } else if (!angular.isFunction(callback)) {\n    error = 'Interceptor callback must be a function, instead got ' + typeof callback;\n  }\n\n  if (error) {\n    throw new Error('MdPanel: ' + error);\n  }\n\n  var interceptors = this._interceptors[type] = this._interceptors[type] || [];\n\n  if (interceptors.indexOf(callback) === -1) {\n    interceptors.push(callback);\n  }\n\n  return this;\n};\n\n\n/**\n * Removes a registered interceptor.\n * @param {string} type Type of interceptor to be removed.\n * @param {Function} callback Interceptor to be removed.\n * @returns {!MdPanelRef}\n */\nMdPanelRef.prototype.removeInterceptor = function(type, callback) {\n  var index = this._interceptors[type] ?\n    this._interceptors[type].indexOf(callback) : -1;\n\n  if (index > -1) {\n    this._interceptors[type].splice(index, 1);\n  }\n\n  return this;\n};\n\n\n/**\n * Removes all interceptors.\n * @param {string=} type Type of interceptors to be removed.\n *     If ommited, all interceptors types will be removed.\n * @returns {!MdPanelRef}\n */\nMdPanelRef.prototype.removeAllInterceptors = function(type) {\n  if (type) {\n    this._interceptors[type] = [];\n  } else {\n    this._interceptors = Object.create(null);\n  }\n\n  return this;\n};\n\n\n/**\n * Invokes all the interceptors of a certain type sequantially in\n *     reverse order. Works in a similar way to `$q.all`, except it\n *     respects the order of the functions.\n * @param {string} type Type of interceptors to be invoked.\n * @returns {!Q.IPromise<!MdPanelRef>}\n * @private\n */\nMdPanelRef.prototype._callInterceptors = function(type) {\n  var self = this;\n  var $q = self._$q;\n  var interceptors = self._interceptors && self._interceptors[type] || [];\n\n  return interceptors.reduceRight(function(promise, interceptor) {\n    var isPromiseLike = interceptor && angular.isFunction(interceptor.then);\n    var response = isPromiseLike ? interceptor : null;\n\n    /**\n    * For interceptors to reject/cancel subsequent portions of the chain, simply\n    * return a `$q.reject(<value>)`\n    */\n    return promise.then(function() {\n      if (!response) {\n        try {\n          response = interceptor(self);\n        } catch (e) {\n          response = $q.reject(e);\n        }\n      }\n\n     return response;\n    });\n  }, $q.resolve(self));\n};\n\n\n/**\n * Faster, more basic than angular.bind\n * http://jsperf.com/angular-bind-vs-custom-vs-native\n * @param {function} callback\n * @param {!Object} self\n * @return {function} Callback function with a bound self.\n */\nMdPanelRef.prototype._simpleBind = function(callback, self) {\n  return function(value) {\n    return callback.apply(self, value);\n  };\n};\n\n\n/**\n * @param {function|IQResolveReject} callback\n * @param {!Object} self\n * @return {function} Callback function with a self param.\n */\nMdPanelRef.prototype._done = function(callback, self) {\n  return function() {\n    callback(self);\n  };\n};\n\n\n/**\n * Adds a panel to a group if the panel does not exist within the group already.\n * A panel can only exist within a single group.\n * @param {string} groupName The name of the group.\n */\nMdPanelRef.prototype.addToGroup = function(groupName) {\n  if (!this._$mdPanel._groups[groupName]) {\n    this._$mdPanel.newPanelGroup(groupName);\n  }\n\n  var group = this._$mdPanel._groups[groupName];\n  var index = group.panels.indexOf(this);\n\n  if (index < 0) {\n    group.panels.push(this);\n  }\n};\n\n\n/**\n * Removes a panel from a group if the panel exists within that group. The group\n * must be created ahead of time.\n * @param {string} groupName The name of the group.\n */\nMdPanelRef.prototype.removeFromGroup = function(groupName) {\n  if (!this._$mdPanel._groups[groupName]) {\n    throw new Error('mdPanel: The group ' + groupName + ' does not exist.');\n  }\n\n  var group = this._$mdPanel._groups[groupName];\n  var index = group.panels.indexOf(this);\n\n  if (index > -1) {\n    group.panels.splice(index, 1);\n  }\n};\n\n\n/**\n * Possible default closeReasons for the close function.\n * @enum {string}\n */\nMdPanelRef.closeReasons = {\n  CLICK_OUTSIDE: 'clickOutsideToClose',\n  ESCAPE: 'escapeToClose',\n};\n\n\n/*****************************************************************************\n *                               MdPanelPosition                             *\n *****************************************************************************/\n\n\n/**\n * Position configuration object. To use, create an MdPanelPosition with the\n * desired properties, then pass the object as part of $mdPanel creation.\n *\n * Example:\n *\n * var panelPosition = new MdPanelPosition()\n *     .relativeTo(myButtonEl)\n *     .addPanelPosition(\n *       $mdPanel.xPosition.CENTER,\n *       $mdPanel.yPosition.ALIGN_TOPS\n *     );\n *\n * $mdPanel.create({\n *   position: panelPosition\n * });\n *\n * @param {!IInjectorService} $injector\n * @final @constructor\n */\nfunction MdPanelPosition($injector) {\n  /** @private @const {!IWindowService} */\n  this._$window = $injector.get('$window');\n\n  /** @private {boolean} */\n  this._isRTL = $injector.get('$mdUtil').isRtl();\n\n  /** @private @const {!angular.$mdConstant} */\n  this._$mdConstant = $injector.get('$mdConstant');\n\n  /** @private {boolean} */\n  this._absolute = false;\n\n  /** @private {!JQLite} */\n  this._relativeToEl = undefined;\n\n  /** @private {string} */\n  this._top = '';\n\n  /** @private {string} */\n  this._bottom = '';\n\n  /** @private {string} */\n  this._left = '';\n\n  /** @private {string} */\n  this._right = '';\n\n  /** @private {!Array<string>} */\n  this._translateX = [];\n\n  /** @private {!Array<string>} */\n  this._translateY = [];\n\n  /** @private {!Array<{x:string, y:string}>} */\n  this._positions = [];\n\n  /** @private {?{x:string, y:string}} */\n  this._actualPosition = undefined;\n}\n\n\n/**\n * Possible values of xPosition.\n * @enum {string}\n */\nMdPanelPosition.xPosition = {\n  CENTER: 'center',\n  ALIGN_START: 'align-start',\n  ALIGN_END: 'align-end',\n  OFFSET_START: 'offset-start',\n  OFFSET_END: 'offset-end'\n};\n\n\n/**\n * Possible values of yPosition.\n * @enum {string}\n */\nMdPanelPosition.yPosition = {\n  CENTER: 'center',\n  ALIGN_TOPS: 'align-tops',\n  ALIGN_BOTTOMS: 'align-bottoms',\n  ABOVE: 'above',\n  BELOW: 'below'\n};\n\n\n/**\n * Possible values of absolute position.\n * @enum {string}\n */\nMdPanelPosition.absPosition = {\n  TOP: 'top',\n  RIGHT: 'right',\n  BOTTOM: 'bottom',\n  LEFT: 'left'\n};\n\n/**\n * Margin between the edges of a panel and the viewport.\n * @const {number}\n */\nMdPanelPosition.viewportMargin = 8;\n\n\n/**\n * Sets absolute positioning for the panel.\n * @return {!MdPanelPosition}\n */\nMdPanelPosition.prototype.absolute = function() {\n  this._absolute = true;\n  return this;\n};\n\n\n/**\n * Sets the value of a position for the panel. Clears any previously set\n * position.\n * @param {string} position Position to set\n * @param {string=} value Value of the position. Defaults to '0'.\n * @returns {!MdPanelPosition}\n * @private\n */\nMdPanelPosition.prototype._setPosition = function(position, value) {\n  if (position === MdPanelPosition.absPosition.RIGHT ||\n      position === MdPanelPosition.absPosition.LEFT) {\n    this._left = this._right = '';\n  } else if (\n      position === MdPanelPosition.absPosition.BOTTOM ||\n      position === MdPanelPosition.absPosition.TOP) {\n    this._top = this._bottom = '';\n  } else {\n    var positions = Object.keys(MdPanelPosition.absPosition).join()\n        .toLowerCase();\n\n    throw new Error('mdPanel: Position must be one of ' + positions + '.');\n  }\n\n  this['_' +  position] = angular.isString(value) ? value : '0';\n\n  return this;\n};\n\n\n/**\n * Sets the value of `top` for the panel. Clears any previously set vertical\n * position.\n * @param {string=} top Value of `top`. Defaults to '0'.\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.top = function(top) {\n  return this._setPosition(MdPanelPosition.absPosition.TOP, top);\n};\n\n\n/**\n * Sets the value of `bottom` for the panel. Clears any previously set vertical\n * position.\n * @param {string=} bottom Value of `bottom`. Defaults to '0'.\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.bottom = function(bottom) {\n  return this._setPosition(MdPanelPosition.absPosition.BOTTOM, bottom);\n};\n\n\n/**\n * Sets the panel to the start of the page - `left` if `ltr` or `right` for\n * `rtl`. Clears any previously set horizontal position.\n * @param {string=} start Value of position. Defaults to '0'.\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.start = function(start) {\n  var position = this._isRTL ? MdPanelPosition.absPosition.RIGHT : MdPanelPosition.absPosition.LEFT;\n  return this._setPosition(position, start);\n};\n\n\n/**\n * Sets the panel to the end of the page - `right` if `ltr` or `left` for `rtl`.\n * Clears any previously set horizontal position.\n * @param {string=} end Value of position. Defaults to '0'.\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.end = function(end) {\n  var position = this._isRTL ? MdPanelPosition.absPosition.LEFT : MdPanelPosition.absPosition.RIGHT;\n  return this._setPosition(position, end);\n};\n\n\n/**\n * Sets the value of `left` for the panel. Clears any previously set\n * horizontal position.\n * @param {string=} left Value of `left`. Defaults to '0'.\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.left = function(left) {\n  return this._setPosition(MdPanelPosition.absPosition.LEFT, left);\n};\n\n\n/**\n * Sets the value of `right` for the panel. Clears any previously set\n * horizontal position.\n * @param {string=} right Value of `right`. Defaults to '0'.\n * @returns {!MdPanelPosition}\n*/\nMdPanelPosition.prototype.right = function(right) {\n  return this._setPosition(MdPanelPosition.absPosition.RIGHT, right);\n};\n\n\n/**\n * Centers the panel horizontally in the viewport. Clears any previously set\n * horizontal position.\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.centerHorizontally = function() {\n  this._left = '50%';\n  this._right = '';\n  this._translateX = ['-50%'];\n  return this;\n};\n\n\n/**\n * Centers the panel vertically in the viewport. Clears any previously set\n * vertical position.\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.centerVertically = function() {\n  this._top = '50%';\n  this._bottom = '';\n  this._translateY = ['-50%'];\n  return this;\n};\n\n\n/**\n * Centers the panel horizontally and vertically in the viewport. This is\n * equivalent to calling both `centerHorizontally` and `centerVertically`.\n * Clears any previously set horizontal and vertical positions.\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.center = function() {\n  return this.centerHorizontally().centerVertically();\n};\n\n\n/**\n * Sets element for relative positioning.\n * @param {string|!Element|!JQLite} element Query selector, DOM element,\n *     or angular element to set the panel relative to.\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.relativeTo = function(element) {\n  this._absolute = false;\n  this._relativeToEl = getElement(element);\n  return this;\n};\n\n\n/**\n * Sets the x and y positions for the panel relative to another element.\n * @param {string} xPosition must be one of the MdPanelPosition.xPosition\n *     values.\n * @param {string} yPosition must be one of the MdPanelPosition.yPosition\n *     values.\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.addPanelPosition = function(xPosition, yPosition) {\n  if (!this._relativeToEl) {\n    throw new Error('mdPanel: addPanelPosition can only be used with ' +\n        'relative positioning. Set relativeTo first.');\n  }\n\n  validatePosition(MdPanelPosition.xPosition, xPosition);\n  validatePosition(MdPanelPosition.yPosition, yPosition);\n\n  this._positions.push({\n    x: xPosition,\n    y: yPosition\n  });\n\n  return this;\n};\n\n\n/**\n * Sets the value of the offset in the x-direction. This will add to any\n * previously set offsets.\n * @param {string|number|function(MdPanelPosition): string} offsetX\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.withOffsetX = function(offsetX) {\n  this._translateX.push(addUnits(offsetX));\n  return this;\n};\n\n\n/**\n * Sets the value of the offset in the y-direction. This will add to any\n * previously set offsets.\n * @param {string|number|function(MdPanelPosition): string} offsetY\n * @returns {!MdPanelPosition}\n */\nMdPanelPosition.prototype.withOffsetY = function(offsetY) {\n  this._translateY.push(addUnits(offsetY));\n  return this;\n};\n\n\n/**\n * Gets the value of `top` for the panel.\n * @returns {string}\n */\nMdPanelPosition.prototype.getTop = function() {\n  return this._top;\n};\n\n\n/**\n * Gets the value of `bottom` for the panel.\n * @returns {string}\n */\nMdPanelPosition.prototype.getBottom = function() {\n  return this._bottom;\n};\n\n\n/**\n * Gets the value of `left` for the panel.\n * @returns {string}\n */\nMdPanelPosition.prototype.getLeft = function() {\n  return this._left;\n};\n\n\n/**\n * Gets the value of `right` for the panel.\n * @returns {string}\n */\nMdPanelPosition.prototype.getRight = function() {\n  return this._right;\n};\n\n\n/**\n * Gets the value of `transform` for the panel.\n * @returns {string} representation of the translateX and translateY rules and values\n */\nMdPanelPosition.prototype.getTransform = function() {\n  var translateX = this._reduceTranslateValues('translateX', this._translateX);\n  var translateY = this._reduceTranslateValues('translateY', this._translateY);\n\n  // It's important to trim the result, because the browser will ignore the set\n  // operation if the string contains only whitespace.\n  return (translateX + ' ' + translateY).trim();\n};\n\n\n/**\n * Sets the `transform` value for an element.\n * @param {!JQLite} el\n * @returns {!JQLite}\n * @private\n */\nMdPanelPosition.prototype._setTransform = function(el) {\n  return el.css(this._$mdConstant.CSS.TRANSFORM, this.getTransform());\n};\n\n\n/**\n * True if the panel is completely on-screen with this positioning; false\n * otherwise.\n * @param {!JQLite} el\n * @return {boolean}\n * @private\n */\nMdPanelPosition.prototype._isOnscreen = function(el) {\n  // this works because we always use fixed positioning for the panel,\n  // which is relative to the viewport.\n  var left = parseInt(this.getLeft());\n  var top = parseInt(this.getTop());\n\n  if (this._translateX.length || this._translateY.length) {\n    var prefixedTransform = this._$mdConstant.CSS.TRANSFORM;\n    var offsets = getComputedTranslations(el, prefixedTransform);\n    left += offsets.x;\n    top += offsets.y;\n  }\n\n  var right = left + el[0].offsetWidth;\n  var bottom = top + el[0].offsetHeight;\n\n  return (left >= 0) &&\n    (top >= 0) &&\n    (bottom <= this._$window.innerHeight) &&\n    (right <= this._$window.innerWidth);\n};\n\n\n/**\n * Gets the first x/y position that can fit on-screen.\n * @returns {{x: string, y: string}}\n */\nMdPanelPosition.prototype.getActualPosition = function() {\n  return this._actualPosition;\n};\n\n\n/**\n * Reduces a list of translate values to a string that can be used within\n * transform.\n * @param {string} translateFn\n * @param {!Array<string>} values\n * @returns {string}\n * @private\n */\nMdPanelPosition.prototype._reduceTranslateValues =\n    function(translateFn, values) {\n      return values.map(function(translation) {\n        var translationValue = angular.isFunction(translation) ?\n            addUnits(translation(this)) : translation;\n        return translateFn + '(' + translationValue + ')';\n      }, this).join(' ');\n    };\n\n\n/**\n * Sets the panel position based on the created panel element and best x/y\n * positioning.\n * @param {!JQLite} el\n * @private\n */\nMdPanelPosition.prototype._setPanelPosition = function(el) {\n  // Remove the class in case it has been added before.\n  el.removeClass('_md-panel-position-adjusted');\n\n  // Only calculate the position if necessary.\n  if (this._absolute) {\n    this._setTransform(el);\n    return;\n  }\n\n  if (this._actualPosition) {\n    this._calculatePanelPosition(el, this._actualPosition);\n    this._setTransform(el);\n    this._constrainToViewport(el);\n    return;\n  }\n\n  for (var i = 0; i < this._positions.length; i++) {\n    this._actualPosition = this._positions[i];\n    this._calculatePanelPosition(el, this._actualPosition);\n    this._setTransform(el);\n\n    if (this._isOnscreen(el)) {\n      return;\n    }\n  }\n\n  this._constrainToViewport(el);\n};\n\n\n/**\n * Constrains a panel's position to the viewport.\n * @param {!JQLite} el\n * @private\n */\nMdPanelPosition.prototype._constrainToViewport = function(el) {\n  var margin = MdPanelPosition.viewportMargin;\n  var initialTop = this._top;\n  var initialLeft = this._left;\n\n  if (this.getTop()) {\n    var top = parseInt(this.getTop());\n    var bottom = el[0].offsetHeight + top;\n    var viewportHeight = this._$window.innerHeight;\n\n    if (top < margin) {\n      this._top = margin + 'px';\n    } else if (bottom > viewportHeight) {\n      this._top = top - (bottom - viewportHeight + margin) + 'px';\n    }\n  }\n\n  if (this.getLeft()) {\n    var left = parseInt(this.getLeft());\n    var right = el[0].offsetWidth + left;\n    var viewportWidth = this._$window.innerWidth;\n\n    if (left < margin) {\n      this._left = margin + 'px';\n    } else if (right > viewportWidth) {\n      this._left = left - (right - viewportWidth + margin) + 'px';\n    }\n  }\n\n  // Class that can be used to re-style the panel if it was repositioned.\n  el.toggleClass(\n    '_md-panel-position-adjusted',\n    this._top !== initialTop || this._left !== initialLeft\n  );\n};\n\n\n/**\n * Switches between 'start' and 'end'.\n * @param {string} position Horizontal position of the panel\n * @returns {string} Reversed position\n * @private\n */\nMdPanelPosition.prototype._reverseXPosition = function(position) {\n  if (position === MdPanelPosition.xPosition.CENTER) {\n    return position;\n  }\n\n  var start = 'start';\n  var end = 'end';\n\n  return position.indexOf(start) > -1 ? position.replace(start, end) : position.replace(end, start);\n};\n\n\n/**\n * Handles horizontal positioning in rtl or ltr environments.\n * @param {string} position Horizontal position of the panel\n * @returns {string} The correct position according the page direction\n * @private\n */\nMdPanelPosition.prototype._bidi = function(position) {\n  return this._isRTL ? this._reverseXPosition(position) : position;\n};\n\n\n/**\n * Calculates the panel position based on the created panel element and the\n * provided positioning.\n * @param {!JQLite} el\n * @param {!{x:string, y:string}} position\n * @private\n */\nMdPanelPosition.prototype._calculatePanelPosition = function(el, position) {\n\n  var panelBounds = el[0].getBoundingClientRect();\n  var panelWidth = Math.max(panelBounds.width, el[0].clientWidth);\n  var panelHeight = Math.max(panelBounds.height, el[0].clientHeight);\n\n  var targetBounds = this._relativeToEl[0].getBoundingClientRect();\n\n  var targetLeft = targetBounds.left;\n  var targetRight = targetBounds.right;\n  var targetWidth = targetBounds.width;\n\n  switch (this._bidi(position.x)) {\n    case MdPanelPosition.xPosition.OFFSET_START:\n      this._left = targetLeft - panelWidth + 'px';\n      break;\n    case MdPanelPosition.xPosition.ALIGN_END:\n      this._left = targetRight - panelWidth + 'px';\n      break;\n    case MdPanelPosition.xPosition.CENTER:\n      var left = targetLeft + (0.5 * targetWidth) - (0.5 * panelWidth);\n      this._left = left + 'px';\n      break;\n    case MdPanelPosition.xPosition.ALIGN_START:\n      this._left = targetLeft + 'px';\n      break;\n    case MdPanelPosition.xPosition.OFFSET_END:\n      this._left = targetRight + 'px';\n      break;\n  }\n\n  var targetTop = targetBounds.top;\n  var targetBottom = targetBounds.bottom;\n  var targetHeight = targetBounds.height;\n\n  switch (position.y) {\n    case MdPanelPosition.yPosition.ABOVE:\n      this._top = targetTop - panelHeight + 'px';\n      break;\n    case MdPanelPosition.yPosition.ALIGN_BOTTOMS:\n      this._top = targetBottom - panelHeight + 'px';\n      break;\n    case MdPanelPosition.yPosition.CENTER:\n      var top = targetTop + (0.5 * targetHeight) - (0.5 * panelHeight);\n      this._top = top + 'px';\n      break;\n    case MdPanelPosition.yPosition.ALIGN_TOPS:\n      this._top = targetTop + 'px';\n      break;\n    case MdPanelPosition.yPosition.BELOW:\n      this._top = targetBottom + 'px';\n      break;\n  }\n};\n\n\n/*****************************************************************************\n *                               MdPanelAnimation                            *\n *****************************************************************************/\n\n\n/**\n * Animation configuration object. To use, create an MdPanelAnimation with the\n * desired properties, then pass the object as part of $mdPanel creation.\n *\n * Example:\n *\n * var panelAnimation = new MdPanelAnimation()\n *     .openFrom(myButtonEl)\n *     .closeTo('.my-button')\n *     .withAnimation($mdPanel.animation.SCALE);\n *\n * $mdPanel.create({\n *   animation: panelAnimation\n * });\n *\n * @param {!IInjectorService} $injector\n * @final @constructor\n */\nfunction MdPanelAnimation($injector) {\n  /** @private @const {!angular.$mdUtil} */\n  this._$mdUtil = $injector.get('$mdUtil');\n\n  /**\n   * @private {{element: !JQLite|undefined, bounds: !DOMRect}|\n   *     undefined}\n   */\n  this._openFrom;\n\n  /**\n   * @private {{element: !JQLite|undefined, bounds: !DOMRect}|\n   *     undefined}\n   */\n  this._closeTo;\n\n  /** @private {string|{open: string, close: string}} */\n  this._animationClass = '';\n\n  /** @private {number} */\n  this._openDuration;\n\n  /** @private {number} */\n  this._closeDuration;\n\n  /** @private {number|{open: number, close: number}} */\n  this._rawDuration;\n}\n\n\n/**\n * Possible default animations.\n * @enum {string}\n */\nMdPanelAnimation.animation = {\n  SLIDE: 'md-panel-animate-slide',\n  SCALE: 'md-panel-animate-scale',\n  FADE: 'md-panel-animate-fade'\n};\n\n\n/**\n * Specifies where to start the open animation. `openFrom` accepts a\n * click event object, query selector, DOM element, or a Rect object that\n * is used to determine the bounds. When passed a click event, the location\n * of the click will be used as the position to start the animation.\n * @param {string|!Element|!Event|{top: number, left: number}} openFrom\n * @returns {!MdPanelAnimation}\n */\nMdPanelAnimation.prototype.openFrom = function(openFrom) {\n  // Check if 'openFrom' is an Event.\n  openFrom = openFrom.target ? openFrom.target : openFrom;\n\n  this._openFrom = this._getPanelAnimationTarget(openFrom);\n\n  if (!this._closeTo) {\n    this._closeTo = this._openFrom;\n  }\n  return this;\n};\n\n\n/**\n * Specifies where to animate the panel close. `closeTo` accepts a\n * query selector, DOM element, or a Rect object that is used to determine\n * the bounds.\n * @param {string|!Element|{top: number, left: number}} closeTo\n * @returns {!MdPanelAnimation}\n */\nMdPanelAnimation.prototype.closeTo = function(closeTo) {\n  this._closeTo = this._getPanelAnimationTarget(closeTo);\n  return this;\n};\n\n\n/**\n * Specifies the duration of the animation in milliseconds.\n * @param {number|{open: number, close: number}} duration\n * @returns {!MdPanelAnimation}\n */\nMdPanelAnimation.prototype.duration = function(duration) {\n  if (duration) {\n    if (angular.isNumber(duration)) {\n      this._openDuration = this._closeDuration = toSeconds(duration);\n    } else if (angular.isObject(duration)) {\n      this._openDuration = toSeconds(duration.open);\n      this._closeDuration = toSeconds(duration.close);\n    }\n  }\n\n  // Save the original value so it can be passed to the backdrop.\n  this._rawDuration = duration;\n\n  return this;\n\n  function toSeconds(value) {\n    if (angular.isNumber(value)) return value / 1000;\n  }\n};\n\n\n/**\n * Returns the element and bounds for the animation target.\n * @param {string|!Element|{top: number, left: number}} location\n * @returns {{element: !JQLite|undefined, bounds: !DOMRect}}\n * @private\n */\nMdPanelAnimation.prototype._getPanelAnimationTarget = function(location) {\n  if (angular.isDefined(location.top) || angular.isDefined(location.left)) {\n    return {\n      element: undefined,\n      bounds: {\n        top: location.top || 0,\n        left: location.left || 0\n      }\n    };\n  } else {\n    return this._getBoundingClientRect(getElement(location));\n  }\n};\n\n\n/**\n * Specifies the animation class.\n *\n * There are several default animations that can be used:\n * (MdPanelAnimation.animation)\n *   SLIDE: The panel slides in and out from the specified\n *        elements.\n *   SCALE: The panel scales in and out.\n *   FADE: The panel fades in and out.\n *\n * @param {string|{open: string, close: string}} cssClass\n * @returns {!MdPanelAnimation}\n */\nMdPanelAnimation.prototype.withAnimation = function(cssClass) {\n  this._animationClass = cssClass;\n  return this;\n};\n\n\n/**\n * Animate the panel open.\n * @param {!JQLite} panelEl\n * @returns {!Q.IPromise} A promise that is resolved when the open\n *     animation is complete.\n */\nMdPanelAnimation.prototype.animateOpen = function(panelEl) {\n  var animator = this._$mdUtil.dom.animator;\n\n  this._fixBounds(panelEl);\n  var animationOptions = {};\n\n  // Include the panel transformations when calculating the animations.\n  var panelTransform = panelEl[0].style.transform || '';\n\n  var openFrom = animator.toTransformCss(panelTransform);\n  var openTo = animator.toTransformCss(panelTransform);\n\n  switch (this._animationClass) {\n    case MdPanelAnimation.animation.SLIDE:\n      // Slide should start with opacity: 1.\n      panelEl.css('opacity', '1');\n\n      animationOptions = {\n        transitionInClass: '_md-panel-animate-enter',\n        transitionOutClass: '_md-panel-animate-leave',\n      };\n\n      var openSlide = animator.calculateSlideToOrigin(\n              panelEl, this._openFrom) || '';\n      openFrom = animator.toTransformCss(openSlide + ' ' + panelTransform);\n      break;\n\n    case MdPanelAnimation.animation.SCALE:\n      animationOptions = {\n        transitionInClass: '_md-panel-animate-enter'\n      };\n\n      var openScale = animator.calculateZoomToOrigin(\n              panelEl, this._openFrom) || '';\n      openFrom = animator.toTransformCss(panelTransform + ' ' + openScale);\n      break;\n\n    case MdPanelAnimation.animation.FADE:\n      animationOptions = {\n        transitionInClass: '_md-panel-animate-enter'\n      };\n      break;\n\n    default:\n      if (angular.isString(this._animationClass)) {\n        animationOptions = {\n          transitionInClass: this._animationClass\n        };\n      } else {\n        animationOptions = {\n          transitionInClass: this._animationClass['open'],\n          transitionOutClass: this._animationClass['close'],\n        };\n      }\n  }\n\n  animationOptions.duration = this._openDuration;\n\n  return animator\n      .translate3d(panelEl, openFrom, openTo, animationOptions);\n};\n\n\n/**\n * Animate the panel close.\n * @param {!JQLite} panelEl\n * @returns {!Q.IPromise} A promise that resolves when the close animation is complete.\n */\nMdPanelAnimation.prototype.animateClose = function(panelEl) {\n  var animator = this._$mdUtil.dom.animator;\n  var reverseAnimationOptions = {};\n\n  // Include the panel transformations when calculating the animations.\n  var panelTransform = panelEl[0].style.transform || '';\n\n  var closeFrom = animator.toTransformCss(panelTransform);\n  var closeTo = animator.toTransformCss(panelTransform);\n\n  switch (this._animationClass) {\n    case MdPanelAnimation.animation.SLIDE:\n      // Slide should start with opacity: 1.\n      panelEl.css('opacity', '1');\n      reverseAnimationOptions = {\n        transitionInClass: '_md-panel-animate-leave',\n        transitionOutClass: '_md-panel-animate-enter _md-panel-animate-leave'\n      };\n\n      var closeSlide = animator.calculateSlideToOrigin(panelEl, this._closeTo) || '';\n      closeTo = animator.toTransformCss(closeSlide + ' ' + panelTransform);\n      break;\n\n    case MdPanelAnimation.animation.SCALE:\n      reverseAnimationOptions = {\n        transitionInClass: '_md-panel-animate-scale-out _md-panel-animate-leave',\n        transitionOutClass: '_md-panel-animate-scale-out _md-panel-animate-enter _md-panel-animate-leave'\n      };\n\n      var closeScale = animator.calculateZoomToOrigin(panelEl, this._closeTo) || '';\n      closeTo = animator.toTransformCss(panelTransform + ' ' + closeScale);\n      break;\n\n    case MdPanelAnimation.animation.FADE:\n      reverseAnimationOptions = {\n        transitionInClass: '_md-panel-animate-fade-out _md-panel-animate-leave',\n        transitionOutClass: '_md-panel-animate-fade-out _md-panel-animate-enter _md-panel-animate-leave'\n      };\n      break;\n\n    default:\n      if (angular.isString(this._animationClass)) {\n        reverseAnimationOptions = {\n          transitionOutClass: this._animationClass\n        };\n      } else {\n        reverseAnimationOptions = {\n          transitionInClass: this._animationClass['close'],\n          transitionOutClass: this._animationClass['open']\n        };\n      }\n  }\n\n  reverseAnimationOptions.duration = this._closeDuration;\n\n  return animator\n      .translate3d(panelEl, closeFrom, closeTo, reverseAnimationOptions);\n};\n\n\n/**\n * Set the height and width to match the panel if not provided.\n * @param {!JQLite} panelEl\n * @private\n */\nMdPanelAnimation.prototype._fixBounds = function(panelEl) {\n  var panelWidth = panelEl[0].offsetWidth;\n  var panelHeight = panelEl[0].offsetHeight;\n\n  if (this._openFrom && this._openFrom.bounds.height == null) {\n    this._openFrom.bounds.height = panelHeight;\n  }\n  if (this._openFrom && this._openFrom.bounds.width == null) {\n    this._openFrom.bounds.width = panelWidth;\n  }\n  if (this._closeTo && this._closeTo.bounds.height == null) {\n    this._closeTo.bounds.height = panelHeight;\n  }\n  if (this._closeTo && this._closeTo.bounds.width == null) {\n    this._closeTo.bounds.width = panelWidth;\n  }\n};\n\n\n/**\n * Identify the bounding RECT for the target element.\n * @param {!JQLite} element\n * @returns {{element: !JQLite|undefined, bounds: !DOMRect}}\n * @private\n */\nMdPanelAnimation.prototype._getBoundingClientRect = function(element) {\n  if (element instanceof angular.element) {\n    return {\n      element: element,\n      bounds: element[0].getBoundingClientRect()\n    };\n  }\n};\n\n\n/*****************************************************************************\n *                                Util Methods                               *\n *****************************************************************************/\n\n\n/**\n * Returns the angular element associated with a css selector or element.\n * @param el {string|!JQLite|!Element}\n * @returns {!JQLite}\n */\nfunction getElement(el) {\n  var queryResult = angular.isString(el) ?\n      document.querySelector(el) : el;\n  return angular.element(queryResult);\n}\n\n/**\n * Gets the computed values for an element's translateX and translateY in px.\n * @param {!JQLite|!Element} el the element to evaluate\n * @param {string} property\n * @return {{x: number, y: number}} an element's translateX and translateY in px\n */\nfunction getComputedTranslations(el, property) {\n  // The transform being returned by `getComputedStyle` is in the format:\n  // `matrix(a, b, c, d, translateX, translateY)` if defined and `none`\n  // if the element doesn't have a transform.\n  var transform = getComputedStyle(el[0] || el)[property];\n  var openIndex = transform.indexOf('(');\n  var closeIndex = transform.lastIndexOf(')');\n  var output = { x: 0, y: 0 };\n\n  if (openIndex > -1 && closeIndex > -1) {\n    var parsedValues = transform\n      .substring(openIndex + 1, closeIndex)\n      .split(', ')\n      .slice(-2);\n\n    output.x = parseInt(parsedValues[0]);\n    output.y = parseInt(parsedValues[1]);\n  }\n\n  return output;\n}\n\n/*\n * Ensures that a value is a valid position name. Throw an exception if not.\n * @param {Object} positionMap Object against which the value will be checked.\n * @param {string} value\n */\nfunction validatePosition(positionMap, value) {\n  // empty is ok\n  if (value === null || angular.isUndefined(value)) {\n    return;\n  }\n\n  var positionKeys = Object.keys(positionMap);\n  var positionValues = [];\n\n  for (var key, i = 0; key = positionKeys[i]; i++) {\n    var position = positionMap[key];\n    positionValues.push(position);\n\n    if (position === value) {\n      return;\n    }\n  }\n\n  throw new Error('Panel position only accepts the following values:\\n' +\n    positionValues.join(' | '));\n}\n\n/**\n * Adds units to a number value.\n * @param {string|number} value\n * @return {string}\n */\nfunction addUnits(value) {\n  return angular.isNumber(value) ? value + 'px' : value;\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.progressCircular\n * @description Module for a circular progressbar\n */\n\nangular.module('material.components.progressCircular', ['material.core']);\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc directive\n * @name mdProgressCircular\n * @module material.components.progressCircular\n * @restrict E\n *\n * @description\n * The circular progress directive is used to make loading content in your app as delightful and\n * painless as possible by minimizing the amount of visual change a user sees before they can view\n * and interact with content.\n *\n * For operations where the percentage of the operation completed can be determined, use a\n * determinate indicator. They give users a quick sense of how long an operation will take.\n *\n * For operations where the user is asked to wait a moment while something finishes up, and it’s\n * not necessary to expose what's happening behind the scenes and how long it will take, use an\n * indeterminate indicator.\n *\n * @param {string} md-mode Select from one of two modes: **'determinate'** and **'indeterminate'**.\n *\n * Note: if the `md-mode` value is set as undefined or specified as not 1 of the two (2) valid modes, then **'indeterminate'**\n * will be auto-applied as the mode.\n *\n * Note: if not configured, the `md-mode=\"indeterminate\"` will be auto injected as an attribute.\n * If `value=\"\"` is also specified, however, then `md-mode=\"determinate\"` would be auto-injected instead.\n * @param {number=} value In determinate mode, this number represents the percentage of the\n *     circular progress. Default: 0\n * @param {number=} md-diameter This specifies the diameter of the circular progress. The value\n * should be a pixel-size value (eg '100'). If this attribute is\n * not present then a default value of '50px' is assumed.\n *\n * @param {boolean=} ng-disabled Determines whether to disable the progress element.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-progress-circular md-mode=\"determinate\" value=\"...\"></md-progress-circular>\n *\n * <md-progress-circular md-mode=\"determinate\" ng-value=\"...\"></md-progress-circular>\n *\n * <md-progress-circular md-mode=\"determinate\" value=\"...\" md-diameter=\"100\"></md-progress-circular>\n *\n * <md-progress-circular md-mode=\"indeterminate\"></md-progress-circular>\n * </hljs>\n */\n\nMdProgressCircularDirective.$inject = [\"$window\", \"$mdProgressCircular\", \"$mdTheming\", \"$mdUtil\", \"$interval\", \"$log\"];\nangular\n  .module('material.components.progressCircular')\n  .directive('mdProgressCircular', MdProgressCircularDirective);\n\n/* @ngInject */\nfunction MdProgressCircularDirective($window, $mdProgressCircular, $mdTheming,\n                                     $mdUtil, $interval, $log) {\n\n  // Note that this shouldn't use use $$rAF, because it can cause an infinite loop\n  // in any tests that call $animate.flush.\n  var rAF = $window.requestAnimationFrame ||\n            $window.webkitRequestAnimationFrame ||\n            angular.noop;\n\n  var cAF = $window.cancelAnimationFrame ||\n            $window.webkitCancelAnimationFrame ||\n            $window.webkitCancelRequestAnimationFrame ||\n            angular.noop;\n\n  var MODE_DETERMINATE = 'determinate';\n  var MODE_INDETERMINATE = 'indeterminate';\n  var DISABLED_CLASS = '_md-progress-circular-disabled';\n  var INDETERMINATE_CLASS = 'md-mode-indeterminate';\n\n  return {\n    restrict: 'E',\n    scope: {\n      value: '@',\n      mdDiameter: '@',\n      mdMode: '@'\n    },\n    template:\n      '<svg xmlns=\"http://www.w3.org/2000/svg\">' +\n        '<path fill=\"none\"/>' +\n      '</svg>',\n    compile: function(element, attrs) {\n      element.attr({\n        'aria-valuemin': 0,\n        'aria-valuemax': 100,\n        'role': 'progressbar'\n      });\n\n      if (angular.isUndefined(attrs.mdMode)) {\n        var mode = attrs.hasOwnProperty('value') ? MODE_DETERMINATE : MODE_INDETERMINATE;\n        attrs.$set('mdMode', mode);\n      } else {\n        attrs.$set('mdMode', attrs.mdMode.trim());\n      }\n\n      return MdProgressCircularLink;\n    }\n  };\n\n  function MdProgressCircularLink(scope, element, attrs) {\n    var node = element[0];\n    var svg = angular.element(node.querySelector('svg'));\n    var path = angular.element(node.querySelector('path'));\n    var startIndeterminate = $mdProgressCircular.startIndeterminate;\n    var endIndeterminate = $mdProgressCircular.endIndeterminate;\n    var iterationCount = 0;\n    var lastAnimationId = 0;\n    var lastDrawFrame;\n    var interval;\n\n    $mdTheming(element);\n    element.toggleClass(DISABLED_CLASS, attrs.hasOwnProperty('disabled'));\n\n    // If the mode is indeterminate, it doesn't need to\n    // wait for the next digest. It can start right away.\n    if (scope.mdMode === MODE_INDETERMINATE){\n      startIndeterminateAnimation();\n    }\n\n    scope.$on('$destroy', function(){\n      cleanupIndeterminateAnimation();\n\n      if (lastDrawFrame) {\n        cAF(lastDrawFrame);\n      }\n    });\n\n    scope.$watchGroup(['value', 'mdMode', function() {\n      var isDisabled = node.disabled;\n\n      // Sometimes the browser doesn't return a boolean, in\n      // which case we should check whether the attribute is\n      // present.\n      if (isDisabled === true || isDisabled === false){\n        return isDisabled;\n      }\n\n      return angular.isDefined(element.attr('disabled'));\n    }], function(newValues, oldValues) {\n      var mode = newValues[1];\n      var isDisabled = newValues[2];\n      var wasDisabled = oldValues[2];\n      var diameter = 0;\n      var strokeWidth = 0;\n\n      if (isDisabled !== wasDisabled) {\n        element.toggleClass(DISABLED_CLASS, !!isDisabled);\n      }\n\n      if (isDisabled) {\n        cleanupIndeterminateAnimation();\n      } else {\n        if (mode !== MODE_DETERMINATE && mode !== MODE_INDETERMINATE) {\n          mode = MODE_INDETERMINATE;\n          attrs.$set('mdMode', mode);\n        }\n\n        if (mode === MODE_INDETERMINATE) {\n          if (oldValues[1] === MODE_DETERMINATE) {\n            diameter = getSize(scope.mdDiameter);\n            strokeWidth = getStroke(diameter);\n            path.attr('d', getSvgArc(diameter, strokeWidth, true));\n            path.attr('stroke-dasharray', getDashLength(diameter, strokeWidth, 75));\n          }\n          startIndeterminateAnimation();\n        } else {\n          var newValue = clamp(newValues[0]);\n          var oldValue = clamp(oldValues[0]);\n\n          cleanupIndeterminateAnimation();\n\n          if (oldValues[1] === MODE_INDETERMINATE) {\n            diameter = getSize(scope.mdDiameter);\n            strokeWidth = getStroke(diameter);\n            path.attr('d', getSvgArc(diameter, strokeWidth, false));\n            path.attr('stroke-dasharray', getDashLength(diameter, strokeWidth, 100));\n          }\n\n          element.attr('aria-valuenow', newValue);\n          renderCircle(oldValue, newValue);\n        }\n      }\n\n    });\n\n    // This is in a separate watch in order to avoid layout, unless\n    // the value has actually changed.\n    scope.$watch('mdDiameter', function(newValue) {\n      var diameter = getSize(newValue);\n      var strokeWidth = getStroke(diameter);\n      var value = clamp(scope.value);\n      var transformOrigin = (diameter / 2) + 'px';\n      var dimensions = {\n        width: diameter + 'px',\n        height: diameter + 'px'\n      };\n\n      // The viewBox has to be applied via setAttribute, because it is\n      // case-sensitive. If jQuery is included in the page, `.attr` lowercases\n      // all attribute names.\n      svg[0].setAttribute('viewBox', '0 0 ' + diameter + ' ' + diameter);\n\n      // Usually viewBox sets the dimensions for the SVG, however that doesn't\n      // seem to be the case on IE10.\n      // Important! The transform origin has to be set from here and it has to\n      // be in the format of \"Ypx Ypx Ypx\", otherwise the rotation wobbles in\n      // IE and Edge, because they don't account for the stroke width when\n      // rotating. Also \"center\" doesn't help in this case, it has to be a\n      // precise value.\n      svg\n        .css(dimensions)\n        .css('transform-origin', transformOrigin + ' ' + transformOrigin + ' ' + transformOrigin);\n\n      element.css(dimensions);\n\n      path.attr('stroke-width', strokeWidth);\n      path.attr('stroke-linecap', 'square');\n      if (scope.mdMode == MODE_INDETERMINATE) {\n        path.attr('d', getSvgArc(diameter, strokeWidth, true));\n        path.attr('stroke-dasharray', getDashLength(diameter, strokeWidth, 75));\n        path.attr('stroke-dashoffset', getDashOffset(diameter, strokeWidth, 1, 75));\n      } else {\n        path.attr('d', getSvgArc(diameter, strokeWidth, false));\n        path.attr('stroke-dasharray', getDashLength(diameter, strokeWidth, 100));\n        path.attr('stroke-dashoffset', getDashOffset(diameter, strokeWidth, 0, 100));\n        renderCircle(value, value);\n      }\n\n    });\n\n    function renderCircle(animateFrom, animateTo, easing, duration, iterationCount, maxValue) {\n      var id = ++lastAnimationId;\n      var startTime = $mdUtil.now();\n      var changeInValue = animateTo - animateFrom;\n      var diameter = getSize(scope.mdDiameter);\n      var strokeWidth = getStroke(diameter);\n      var ease = easing || $mdProgressCircular.easeFn;\n      var animationDuration = duration || $mdProgressCircular.duration;\n      var rotation = -90 * (iterationCount || 0);\n      var dashLimit = maxValue || 100;\n\n      // No need to animate it if the values are the same\n      if (animateTo === animateFrom) {\n        renderFrame(animateTo);\n      } else {\n        lastDrawFrame = rAF(function animation() {\n          var currentTime = $window.Math.max(0, $window.Math.min($mdUtil.now() - startTime, animationDuration));\n\n          renderFrame(ease(currentTime, animateFrom, changeInValue, animationDuration));\n\n          // Do not allow overlapping animations\n          if (id === lastAnimationId && currentTime < animationDuration) {\n            lastDrawFrame = rAF(animation);\n          }\n        });\n      }\n\n      function renderFrame(value) {\n        path.attr('stroke-dashoffset', getDashOffset(diameter, strokeWidth, value, dashLimit));\n        path.attr('transform','rotate(' + (rotation) + ' ' + diameter/2 + ' ' + diameter/2 + ')');\n      }\n    }\n\n    function animateIndeterminate() {\n      renderCircle(\n        startIndeterminate,\n        endIndeterminate,\n        $mdProgressCircular.easeFnIndeterminate,\n        $mdProgressCircular.durationIndeterminate,\n        iterationCount,\n        75\n      );\n\n      // The %4 technically isn't necessary, but it keeps the rotation\n      // under 360, instead of becoming a crazy large number.\n      iterationCount = ++iterationCount % 4;\n\n    }\n\n    function startIndeterminateAnimation() {\n      if (!interval) {\n        // Note that this interval isn't supposed to trigger a digest.\n        interval = $interval(\n          animateIndeterminate,\n          $mdProgressCircular.durationIndeterminate,\n          0,\n          false\n        );\n\n        animateIndeterminate();\n\n        element\n          .addClass(INDETERMINATE_CLASS)\n          .removeAttr('aria-valuenow');\n      }\n    }\n\n    function cleanupIndeterminateAnimation() {\n      if (interval) {\n        $interval.cancel(interval);\n        interval = null;\n        element.removeClass(INDETERMINATE_CLASS);\n      }\n    }\n  }\n\n  /**\n   * Returns SVG path data for progress circle\n   * Syntax spec: https://www.w3.org/TR/SVG/paths.html#PathDataEllipticalArcCommands\n   *\n   * @param {number} diameter Diameter of the container.\n   * @param {number} strokeWidth Stroke width to be used when drawing circle\n   * @param {boolean} indeterminate Use if progress circle will be used for indeterminate\n   *\n   * @returns {string} String representation of an SVG arc.\n   */\n  function getSvgArc(diameter, strokeWidth, indeterminate) {\n    var radius = diameter / 2;\n    var offset = strokeWidth / 2;\n    var start = radius + ',' + offset; // ie: (25, 2.5) or 12 o'clock\n    var end = offset + ',' + radius;   // ie: (2.5, 25) or  9 o'clock\n    var arcRadius = radius - offset;\n    return 'M' + start\n         + 'A' + arcRadius + ',' + arcRadius + ' 0 1 1 ' + end // 75% circle\n         + (indeterminate ? '' : 'A' + arcRadius + ',' + arcRadius + ' 0 0 1 ' + start); // loop to start\n  }\n\n  /**\n   * Return stroke length for progress circle\n   *\n   * @param {number} diameter Diameter of the container.\n   * @param {number} strokeWidth Stroke width to be used when drawing circle\n   * @param {number} value Percentage of circle (between 0 and 100)\n   * @param {number} maxArcLength Maximum length of arc as a percentage of circle (between 0 and 100)\n   *\n   * @returns {number} Stroke length for progress circle\n   */\n  function getDashOffset(diameter, strokeWidth, value, maxArcLength) {\n    return getSpinnerCircumference(diameter, strokeWidth) * ((maxArcLength - value) / 100);\n  }\n\n  /**\n   * Limits a value between 0 and 100.\n   */\n  function clamp(value) {\n    return $window.Math.max(0, $window.Math.min(value || 0, 100));\n  }\n\n  /**\n   * Determines the size of a progress circle, based on the provided\n   * value in the following formats: `X`, `Ypx`, `Z%`.\n   */\n  function getSize(value) {\n    var defaultValue = $mdProgressCircular.progressSize;\n\n    if (value) {\n      var parsed = parseFloat(value);\n\n      if (value.lastIndexOf('%') === value.length - 1) {\n        parsed = (parsed / 100) * defaultValue;\n      }\n\n      return parsed;\n    }\n\n    return defaultValue;\n  }\n\n  /**\n   * Determines the circle's stroke width, based on\n   * the provided diameter.\n   */\n  function getStroke(diameter) {\n    return $mdProgressCircular.strokeWidth / 100 * diameter;\n  }\n\n  /**\n   * Return length of the dash\n   *\n   * @param {number} diameter Diameter of the container.\n   * @param {number} strokeWidth Stroke width to be used when drawing circle\n   * @param {number} value Percentage of circle (between 0 and 100)\n   *\n   * @returns {number} Length of the dash\n   */\n  function getDashLength(diameter, strokeWidth, value) {\n    return getSpinnerCircumference(diameter, strokeWidth) * (value / 100);\n  }\n\n  /**\n   * Return circumference of the spinner\n   *\n   * @param {number} diameter Diameter of the container.\n   * @param {number} strokeWidth Stroke width to be used when drawing circle\n   *\n   * @returns {number} Circumference of the spinner\n   */\n  function getSpinnerCircumference(diameter, strokeWidth) {\n    return ((diameter - strokeWidth) * $window.Math.PI);\n  }\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc service\n * @name $mdProgressCircular\n * @module material.components.progressCircular\n *\n * @description\n * Allows the user to specify the default options for the `progressCircular` directive.\n *\n * @property {number} progressSize Diameter of the progress circle in pixels.\n * @property {number} strokeWidth Width of the circle's stroke as a percentage of the circle's size.\n * @property {number} duration Length of the circle animation in milliseconds.\n * @property {function} easeFn Default easing animation function.\n * @property {object} easingPresets Collection of pre-defined easing functions.\n *\n * @property {number} durationIndeterminate Duration of the indeterminate animation.\n * @property {number} startIndeterminate Indeterminate animation start point.\n * @property {number} endIndeterminate Indeterminate animation end point.\n * @property {function} easeFnIndeterminate Easing function to be used when animating\n * between the indeterminate values.\n *\n * @property {(function(object): object)} configure Used to modify the default options.\n *\n * @usage\n * <hljs lang=\"js\">\n *   myAppModule.config(function($mdProgressCircularProvider) {\n *\n *     // Example of changing the default progress options.\n *     $mdProgressCircularProvider.configure({\n *       progressSize: 100,\n *       strokeWidth: 20,\n *       duration: 800\n *     });\n * });\n * </hljs>\n *\n */\n\nangular\n  .module('material.components.progressCircular')\n  .provider(\"$mdProgressCircular\", MdProgressCircularProvider);\n\nfunction MdProgressCircularProvider() {\n  var progressConfig = {\n    progressSize: 50,\n    strokeWidth: 10,\n    duration: 100,\n    easeFn: linearEase,\n\n    durationIndeterminate: 1333,\n    startIndeterminate: 1,\n    endIndeterminate: 149,\n    easeFnIndeterminate: materialEase,\n\n    easingPresets: {\n      linearEase: linearEase,\n      materialEase: materialEase\n    }\n  };\n\n  return {\n    configure: function(options) {\n      progressConfig = angular.extend(progressConfig, options || {});\n      return progressConfig;\n    },\n    $get: function() { return progressConfig; }\n  };\n\n  function linearEase(t, b, c, d) {\n    return c * t / d + b;\n  }\n\n  function materialEase(t, b, c, d) {\n    // via http://www.timotheegroleau.com/Flash/experiments/easing_function_generator.htm\n    // with settings of [0, 0, 1, 1]\n    var ts = (t /= d) * t;\n    var tc = ts * t;\n    return b + c * (6 * tc * ts + -15 * ts * ts + 10 * tc);\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.progressLinear\n * @description Linear Progress module!\n */\nMdProgressLinearDirective.$inject = [\"$mdTheming\", \"$mdUtil\", \"$log\"];\nangular.module('material.components.progressLinear', [\n  'material.core'\n])\n  .directive('mdProgressLinear', MdProgressLinearDirective);\n\n/**\n * @ngdoc directive\n * @name mdProgressLinear\n * @module material.components.progressLinear\n * @restrict E\n *\n * @description\n * The linear progress directive is used to make loading content\n * in your app as delightful and painless as possible by minimizing\n * the amount of visual change a user sees before they can view\n * and interact with content.\n *\n * Each operation should only be represented by one activity indicator\n * For example: one refresh operation should not display both a\n * refresh bar and an activity circle.\n *\n * For operations where the percentage of the operation completed\n * can be determined, use a determinate indicator. They give users\n * a quick sense of how long an operation will take.\n *\n * For operations where the user is asked to wait a moment while\n * something finishes up, and it’s not necessary to expose what's\n * happening behind the scenes and how long it will take, use an\n * indeterminate indicator.\n *\n * @param {string} md-mode Select from one of four modes: determinate, indeterminate, buffer or query.\n *\n * Note: if the `md-mode` value is set as undefined or specified as 1 of the four (4) valid modes, then `indeterminate`\n * will be auto-applied as the mode.\n *\n * Note: if not configured, the `md-mode=\"indeterminate\"` will be auto injected as an attribute. If `value=\"\"` is also specified, however,\n * then `md-mode=\"determinate\"` would be auto-injected instead.\n * @param {number=} value In determinate and buffer modes, this number represents the percentage of the primary progress bar. Default: 0\n * @param {number=} md-buffer-value In the buffer mode, this number represents the percentage of the secondary progress bar. Default: 0\n * @param {boolean=} ng-disabled Determines whether to disable the progress element.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-progress-linear md-mode=\"determinate\" value=\"...\"></md-progress-linear>\n *\n * <md-progress-linear md-mode=\"determinate\" ng-value=\"...\"></md-progress-linear>\n *\n * <md-progress-linear md-mode=\"indeterminate\"></md-progress-linear>\n *\n * <md-progress-linear md-mode=\"buffer\" value=\"...\" md-buffer-value=\"...\"></md-progress-linear>\n *\n * <md-progress-linear md-mode=\"query\"></md-progress-linear>\n * </hljs>\n */\nfunction MdProgressLinearDirective($mdTheming, $mdUtil, $log) {\n  var MODE_DETERMINATE = \"determinate\";\n  var MODE_INDETERMINATE = \"indeterminate\";\n  var MODE_BUFFER = \"buffer\";\n  var MODE_QUERY = \"query\";\n  var DISABLED_CLASS = \"_md-progress-linear-disabled\";\n\n  return {\n    restrict: 'E',\n    template: '<div class=\"md-container\">' +\n      '<div class=\"md-dashed\"></div>' +\n      '<div class=\"md-bar md-bar1\"></div>' +\n      '<div class=\"md-bar md-bar2\"></div>' +\n      '</div>',\n    compile: compile\n  };\n\n  function compile(tElement, tAttrs, transclude) {\n    tElement.attr('aria-valuemin', 0);\n    tElement.attr('aria-valuemax', 100);\n    tElement.attr('role', 'progressbar');\n\n    return postLink;\n  }\n  function postLink(scope, element, attr) {\n    $mdTheming(element);\n\n    var lastMode;\n    var isDisabled = attr.hasOwnProperty('disabled');\n    var toVendorCSS = $mdUtil.dom.animator.toCss;\n    var bar1 = angular.element(element[0].querySelector('.md-bar1'));\n    var bar2 = angular.element(element[0].querySelector('.md-bar2'));\n    var container = angular.element(element[0].querySelector('.md-container'));\n\n    element\n      .attr('md-mode', mode())\n      .toggleClass(DISABLED_CLASS, isDisabled);\n\n    validateMode();\n    watchAttributes();\n\n    /**\n     * Watch the value, md-buffer-value, and md-mode attributes\n     */\n    function watchAttributes() {\n      attr.$observe('value', function(value) {\n        var percentValue = clamp(value);\n        element.attr('aria-valuenow', percentValue);\n\n        if (mode() != MODE_QUERY) animateIndicator(bar2, percentValue);\n      });\n\n      attr.$observe('mdBufferValue', function(value) {\n        animateIndicator(bar1, clamp(value));\n      });\n\n      attr.$observe('disabled', function(value) {\n        if (value === true || value === false) {\n          isDisabled = !!value;\n        } else {\n          isDisabled = angular.isDefined(value);\n        }\n\n        element.toggleClass(DISABLED_CLASS, isDisabled);\n        container.toggleClass(lastMode, !isDisabled);\n      });\n\n      attr.$observe('mdMode', function(mode) {\n        if (lastMode) container.removeClass(lastMode);\n\n        switch (mode) {\n          case MODE_QUERY:\n          case MODE_BUFFER:\n          case MODE_DETERMINATE:\n          case MODE_INDETERMINATE:\n            container.addClass(lastMode = \"md-mode-\" + mode);\n            break;\n          default:\n            container.addClass(lastMode = \"md-mode-\" + MODE_INDETERMINATE);\n            break;\n        }\n      });\n    }\n\n    /**\n     * Auto-defaults the mode to either `determinate` or `indeterminate` mode; if not specified\n     */\n    function validateMode() {\n      if (angular.isUndefined(attr.mdMode)) {\n        var hasValue = angular.isDefined(attr.value);\n        var mode = hasValue ? MODE_DETERMINATE : MODE_INDETERMINATE;\n        var info = \"Auto-adding the missing md-mode='{0}' to the ProgressLinear element\";\n        element.attr(\"md-mode\", mode);\n        attr.mdMode = mode;\n      }\n    }\n\n    /**\n     * Is the md-mode a valid option?\n     */\n    function mode() {\n      var value = (attr.mdMode || \"\").trim();\n      if (value) {\n        switch (value) {\n          case MODE_DETERMINATE:\n          case MODE_INDETERMINATE:\n          case MODE_BUFFER:\n          case MODE_QUERY:\n            break;\n          default:\n            value = MODE_INDETERMINATE;\n            break;\n        }\n      }\n      return value;\n    }\n\n    /**\n     * Manually set CSS to animate the Determinate indicator based on the specified\n     * percentage value (0-100).\n     */\n    function animateIndicator(target, value) {\n      if (isDisabled || !mode()) return;\n\n      var to = $mdUtil.supplant(\"translateX({0}%) scale({1},1)\", [(value-100)/2, value/100]);\n      var styles = toVendorCSS({ transform : to });\n      angular.element(target).css(styles);\n    }\n  }\n\n  /**\n   * Clamps the value to be between 0 and 100.\n   * @param {number} value The value to clamp.\n   * @returns {number}\n   */\n  function clamp(value) {\n    return Math.max(0, Math.min(value || 0, 100));\n  }\n}\n\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.radioButton\n * @description radioButton module!\n */\nmdRadioGroupDirective.$inject = [\"$mdUtil\", \"$mdConstant\", \"$mdTheming\", \"$timeout\"];\nmdRadioButtonDirective.$inject = [\"$mdAria\", \"$mdUtil\", \"$mdTheming\"];\nangular.module('material.components.radioButton', [\n  'material.core'\n])\n  .directive('mdRadioGroup', mdRadioGroupDirective)\n  .directive('mdRadioButton', mdRadioButtonDirective);\n\n/**\n * @type {Readonly<{NEXT: number, CURRENT: number, PREVIOUS: number}>}\n */\nvar incrementSelection = Object.freeze({PREVIOUS: -1, CURRENT: 0, NEXT: 1});\n\n/**\n * @ngdoc directive\n * @module material.components.radioButton\n * @name mdRadioGroup\n *\n * @restrict E\n *\n * @description\n * The `<md-radio-group>` directive identifies a grouping\n * container for the 1..n grouped radio buttons; specified using nested\n * `<md-radio-button>` elements.\n *\n * The radio button uses the accent color by default. The primary color palette may be used with\n * the `md-primary` class.\n *\n * Note: `<md-radio-group>` and `<md-radio-button>` handle `tabindex` differently\n * than the native `<input type=\"radio\">` controls. Whereas the native controls\n * force the user to tab through all the radio buttons, `<md-radio-group>`\n * is focusable and by default the `<md-radio-button>`s are not.\n *\n * @param {string} ng-model Assignable angular expression to data-bind to.\n * @param {string=} ng-change AngularJS expression to be executed when input changes due to user\n *    interaction.\n * @param {boolean=} md-no-ink If present, disables ink ripple effects.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-radio-group ng-model=\"selected\">\n *   <md-radio-button ng-repeat=\"item in items\"\n *                    ng-value=\"item.value\" aria-label=\"{{item.label}}\">\n *     {{ item.label }}\n *   </md-radio-button>\n * </md-radio-group>\n * </hljs>\n */\nfunction mdRadioGroupDirective($mdUtil, $mdConstant, $mdTheming, $timeout) {\n  RadioGroupController.prototype = createRadioGroupControllerProto();\n\n  return {\n    restrict: 'E',\n    controller: ['$element', RadioGroupController],\n    require: ['mdRadioGroup', '?ngModel'],\n    link: { pre: linkRadioGroup }\n  };\n\n  function linkRadioGroup(scope, element, attr, controllers) {\n    // private md component indicator for styling\n    element.addClass('_md');\n    $mdTheming(element);\n\n    var radioGroupController = controllers[0];\n    var ngModelCtrl = controllers[1] || $mdUtil.fakeNgModel();\n\n    radioGroupController.init(ngModelCtrl);\n\n    scope.mouseActive = false;\n\n    element\n      .attr({\n        'role': 'radiogroup',\n        'tabIndex': element.attr('tabindex') || '0'\n      })\n      .on('keydown', keydownListener)\n      .on('mousedown', function() {\n        scope.mouseActive = true;\n        $timeout(function() {\n          scope.mouseActive = false;\n        }, 100);\n      })\n      .on('focus', function() {\n        if (scope.mouseActive === false) {\n          radioGroupController.$element.addClass('md-focused');\n        }\n      })\n      .on('blur', function() {\n        radioGroupController.$element.removeClass('md-focused');\n      });\n\n    // Initially set the first radio button as the aria-activedescendant. This will be overridden\n    // if a 'checked' radio button gets rendered. We need to wait for the nextTick here so that the\n    // radio buttons have their id values assigned.\n    $mdUtil.nextTick(function () {\n      var radioButtons = getRadioButtons(radioGroupController.$element);\n      if (radioButtons.count() &&\n          !radioGroupController.$element[0].hasAttribute('aria-activedescendant')) {\n        radioGroupController.setActiveDescendant(radioButtons.first().id);\n      }\n    });\n\n    /**\n     * Apply the md-focused class if it isn't already applied.\n     */\n    function setFocus() {\n      if (!element.hasClass('md-focused')) { element.addClass('md-focused'); }\n    }\n\n    /**\n     * @param {KeyboardEvent} keyboardEvent\n     */\n    function keydownListener(keyboardEvent) {\n      var keyCode = keyboardEvent.which || keyboardEvent.keyCode;\n\n      // Only listen to events that we originated ourselves\n      // so that we don't trigger on things like arrow keys in inputs.\n      if (keyCode !== $mdConstant.KEY_CODE.ENTER &&\n          keyboardEvent.currentTarget !== keyboardEvent.target) {\n        return;\n      }\n\n      switch (keyCode) {\n        case $mdConstant.KEY_CODE.LEFT_ARROW:\n        case $mdConstant.KEY_CODE.UP_ARROW:\n          keyboardEvent.preventDefault();\n          radioGroupController.selectPrevious();\n          setFocus();\n          break;\n\n        case $mdConstant.KEY_CODE.RIGHT_ARROW:\n        case $mdConstant.KEY_CODE.DOWN_ARROW:\n          keyboardEvent.preventDefault();\n          radioGroupController.selectNext();\n          setFocus();\n          break;\n\n        case $mdConstant.KEY_CODE.SPACE:\n          keyboardEvent.preventDefault();\n          radioGroupController.selectCurrent();\n          break;\n\n        case $mdConstant.KEY_CODE.ENTER:\n          var form = angular.element($mdUtil.getClosest(element[0], 'form'));\n          if (form.length > 0) {\n            form.triggerHandler('submit');\n          }\n          break;\n      }\n    }\n  }\n\n  /**\n   * @param {JQLite} $element\n   * @constructor\n   */\n  function RadioGroupController($element) {\n    this._radioButtonRenderFns = [];\n    this.$element = $element;\n  }\n\n  function createRadioGroupControllerProto() {\n    return {\n      init: function(ngModelCtrl) {\n        this._ngModelCtrl = ngModelCtrl;\n        this._ngModelCtrl.$render = angular.bind(this, this.render);\n      },\n      add: function(rbRender) {\n        this._radioButtonRenderFns.push(rbRender);\n      },\n      remove: function(rbRender) {\n        var index = this._radioButtonRenderFns.indexOf(rbRender);\n        if (index !== -1) {\n          this._radioButtonRenderFns.splice(index, 1);\n        }\n      },\n      render: function() {\n        this._radioButtonRenderFns.forEach(function(rbRender) {\n          rbRender();\n        });\n      },\n      setViewValue: function(value, eventType) {\n        this._ngModelCtrl.$setViewValue(value, eventType);\n        // update the other radio buttons as well\n        this.render();\n      },\n      getViewValue: function() {\n        return this._ngModelCtrl.$viewValue;\n      },\n      selectCurrent: function() {\n        return changeSelectedButton(this.$element, incrementSelection.CURRENT);\n      },\n      selectNext: function() {\n        return changeSelectedButton(this.$element, incrementSelection.NEXT);\n      },\n      selectPrevious: function() {\n        return changeSelectedButton(this.$element, incrementSelection.PREVIOUS);\n      },\n      setActiveDescendant: function (radioId) {\n        this.$element.attr('aria-activedescendant', radioId);\n      },\n      isDisabled: function() {\n        return this.$element[0].hasAttribute('disabled');\n      }\n    };\n  }\n\n  /**\n   * Coerce all child radio buttons into an array, then wrap them in an iterator.\n   * @param parent {!JQLite}\n   * @return {{add: add, next: (function()), last: (function(): any|null), previous: (function()), count: (function(): number), hasNext: (function(*=): Array.length|*|number|boolean), inRange: (function(*): boolean), remove: remove, contains: (function(*=): *|boolean), itemAt: (function(*=): any|null), findBy: (function(*, *): *[]), hasPrevious: (function(*=): Array.length|*|number|boolean), items: (function(): *[]), indexOf: (function(*=): number), first: (function(): any|null)}}\n   */\n  function getRadioButtons(parent) {\n    return $mdUtil.iterator(parent[0].querySelectorAll('md-radio-button'), true);\n  }\n\n  /**\n   * Change the radio group's selected button by a given increment.\n   * If no button is selected, select the first button.\n   * @param {JQLite} parent the md-radio-group\n   * @param {incrementSelection} increment enum that determines whether the next or\n   *  previous button is clicked. For current, only the first button is selected, otherwise the\n   *  current selection is maintained (by doing nothing).\n   */\n  function changeSelectedButton(parent, increment) {\n    var buttons = getRadioButtons(parent);\n    var target;\n\n    if (buttons.count()) {\n      var validate = function (button) {\n        // If disabled, then NOT valid\n        return !angular.element(button).attr(\"disabled\");\n      };\n\n      var selected = parent[0].querySelector('md-radio-button.md-checked');\n      if (!selected) {\n        target = buttons.first();\n      } else if (increment === incrementSelection.PREVIOUS ||\n                 increment === incrementSelection.NEXT) {\n        target = buttons[\n          increment === incrementSelection.PREVIOUS ? 'previous' : 'next'\n        ](selected, validate);\n      }\n\n      if (target) {\n        // Activate radioButton's click listener (triggerHandler won't create a real click event)\n        angular.element(target).triggerHandler('click');\n      }\n    }\n  }\n}\n\n/**\n * @ngdoc directive\n * @module material.components.radioButton\n * @name mdRadioButton\n *\n * @restrict E\n *\n * @description\n * The `<md-radio-button>`directive is the child directive required to be used within `<md-radio-group>` elements.\n *\n * While similar to the `<input type=\"radio\" ng-model=\"\" value=\"\">` directive,\n * the `<md-radio-button>` directive provides ink effects, ARIA support, and\n * supports use within named radio groups.\n *\n * One of `value` or `ng-value` must be set so that the `md-radio-group`'s model is set properly when the\n * `md-radio-button` is selected.\n *\n * @param {string} value The value to which the model should be set when selected.\n * @param {string} ng-value AngularJS expression which sets the value to which the model should\n *    be set when selected.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {string=} aria-label Adds label to radio button for accessibility.\n *    Defaults to radio button's text. If no text content is available, a warning will be logged.\n *\n * @usage\n * <hljs lang=\"html\">\n *\n * <md-radio-button value=\"1\" aria-label=\"Label 1\">\n *   Label 1\n * </md-radio-button>\n *\n * <md-radio-button ng-value=\"specialValue\" aria-label=\"Green\">\n *   Green\n * </md-radio-button>\n *\n * </hljs>\n *\n */\nfunction mdRadioButtonDirective($mdAria, $mdUtil, $mdTheming) {\n\n  var CHECKED_CSS = 'md-checked';\n\n  return {\n    restrict: 'E',\n    require: '^mdRadioGroup',\n    transclude: true,\n    template: '<div class=\"md-container\" md-ink-ripple md-ink-ripple-checkbox>' +\n                '<div class=\"md-off\"></div>' +\n                '<div class=\"md-on\"></div>' +\n              '</div>' +\n              '<div ng-transclude class=\"md-label\"></div>',\n    link: link\n  };\n\n  function link(scope, element, attr, radioGroupController) {\n    var lastChecked;\n\n    $mdTheming(element);\n    configureAria(element);\n    element.addClass('md-auto-horizontal-margin');\n\n    // ngAria overwrites the aria-checked inside a $watch for ngValue.\n    // We should defer the initialization until all the watches have fired.\n    // This can also be fixed by removing the `lastChecked` check, but that'll\n    // cause more DOM manipulation on each digest.\n    if (attr.ngValue) {\n      $mdUtil.nextTick(initialize, false);\n    } else {\n      initialize();\n    }\n\n    /**\n     * Initializes the component.\n     */\n    function initialize() {\n      if (!radioGroupController) {\n        throw 'RadioButton: No RadioGroupController could be found.';\n      }\n\n      radioGroupController.add(render);\n      attr.$observe('value', render);\n\n      element\n        .on('click', listener)\n        .on('$destroy', function() {\n          radioGroupController.remove(render);\n        });\n    }\n\n    /**\n     * On click functionality.\n     */\n    function listener(ev) {\n      if (element[0].hasAttribute('disabled') || radioGroupController.isDisabled()) return;\n\n      scope.$apply(function() {\n        radioGroupController.setViewValue(attr.value, ev && ev.type);\n      });\n    }\n\n    /**\n     * Add or remove the `.md-checked` class from the RadioButton (and conditionally its parent).\n     * Update the `aria-activedescendant` attribute.\n     */\n    function render() {\n      var checked = radioGroupController.getViewValue() == attr.value;\n\n      if (checked === lastChecked) return;\n\n      if (element[0] && element[0].parentNode &&\n          element[0].parentNode.nodeName.toLowerCase() !== 'md-radio-group') {\n        // If the radioButton is inside a div, then add class so highlighting will work.\n        element.parent().toggleClass(CHECKED_CSS, checked);\n      }\n\n      if (checked) {\n        radioGroupController.setActiveDescendant(element.attr('id'));\n      }\n\n      lastChecked = checked;\n\n      element\n        .attr('aria-checked', checked)\n        .toggleClass(CHECKED_CSS, checked);\n    }\n\n    /**\n     * Inject ARIA-specific attributes appropriate for each radio button\n     */\n    function configureAria(element) {\n      element.attr({\n        id: attr.id || 'radio_' + $mdUtil.nextUid(),\n        role: 'radio',\n        'aria-checked': 'false'\n      });\n\n      $mdAria.expectWithText(element, 'aria-label');\n    }\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.select\n */\n\n/***************************************************\n\n ### TODO ###\n - [ ] Abstract placement logic in $mdSelect service to $mdMenu service\n\n ***************************************************/\n\nSelectDirective.$inject = [\"$mdSelect\", \"$mdUtil\", \"$mdConstant\", \"$mdTheming\", \"$mdAria\", \"$parse\", \"$sce\"];\nSelectMenuDirective.$inject = [\"$parse\", \"$mdUtil\", \"$mdConstant\", \"$mdTheming\"];\nOptionDirective.$inject = [\"$mdButtonInkRipple\", \"$mdUtil\", \"$mdTheming\"];\nSelectProvider.$inject = [\"$$interimElementProvider\"];\nOptionController.$inject = [\"$element\"];\nvar SELECT_EDGE_MARGIN = 8;\nvar selectNextId = 0;\nvar CHECKBOX_SELECTION_INDICATOR;\n\nangular.module('material.components.select', [\n    'material.core',\n    'material.components.backdrop'\n  ])\n  .directive('mdSelect', SelectDirective)\n  .directive('mdSelectMenu', SelectMenuDirective)\n  .directive('mdOption', OptionDirective)\n  .directive('mdOptgroup', OptgroupDirective)\n  .directive('mdSelectHeader', SelectHeaderDirective)\n  .provider('$mdSelect', SelectProvider);\n\n/**\n * @ngdoc directive\n * @name mdSelect\n * @restrict E\n * @module material.components.select\n *\n * @description Displays a select box, bound to an `ng-model`. Selectable options are defined using\n * the <a ng-href=\"api/directive/mdOption\">md-option</a> element directive. Options can be grouped\n * using the <a ng-href=\"api/directive/mdOptgroup\">md-optgroup</a> element directive.\n *\n * When the select is required and uses a floating label, then the label will automatically contain\n * an asterisk (`*`). This behavior can be disabled by using the `md-no-asterisk` attribute.\n *\n * By default, the select will display with an underline to match other form elements. This can be\n * disabled by applying the `md-no-underline` CSS class.\n *\n * @param {expression} ng-model Assignable angular expression to data-bind to.\n * @param {expression=} ng-change Expression to be executed when the model value changes.\n * @param {boolean=} multiple When present, allows for more than one option to be selected.\n *  The model is an array with the selected choices. **Note:** This attribute is only evaluated\n *  once; it is not watched.\n * @param {expression=} md-on-close Expression to be evaluated when the select is closed.\n * @param {expression=} md-on-open Expression to be evaluated when opening the select.\n *  Will hide the select options and show a spinner until the evaluated promise resolves.\n * @param {expression=} md-selected-text Expression to be evaluated that will return a string\n *  to be displayed as a placeholder in the select input box when it is closed. The value\n *  will be treated as *text* (not html).\n * @param {expression=} md-selected-html Expression to be evaluated that will return a string\n *  to be displayed as a placeholder in the select input box when it is closed. The value\n *  will be treated as *html*. The value must either be explicitly marked as trustedHtml or\n *  the ngSanitize module must be loaded.\n * @param {string=} placeholder Placeholder hint text.\n * @param {boolean=} md-no-asterisk When set to true, an asterisk will not be appended to the\n *  floating label. **Note:** This attribute is only evaluated once; it is not watched.\n * @param {string=} aria-label Optional label for accessibility. Only necessary if no explicit label\n *  is present.\n * @param {string=} md-container-class Class list to get applied to the `.md-select-menu-container`\n *  element (for custom styling).\n * @param {string=} md-select-only-option If specified, a `<md-select>` will automatically select\n * it's first option, if it only has one.\n *\n * @usage\n * With a placeholder (label and aria-label are added dynamically)\n * <hljs lang=\"html\">\n *   <md-input-container>\n *     <md-select\n *       ng-model=\"someModel\"\n *       placeholder=\"Select a state\">\n *       <md-option ng-value=\"opt\" ng-repeat=\"opt in neighborhoods2\">{{ opt }}</md-option>\n *     </md-select>\n *   </md-input-container>\n * </hljs>\n *\n * With an explicit label\n * <hljs lang=\"html\">\n *   <md-input-container>\n *     <label>State</label>\n *     <md-select\n *       ng-model=\"someModel\">\n *       <md-option ng-value=\"opt\" ng-repeat=\"opt in neighborhoods2\">{{ opt }}</md-option>\n *     </md-select>\n *   </md-input-container>\n * </hljs>\n *\n * Using the `md-select-header` element directive\n *\n * When a developer needs to put more than just a text label in the `md-select-menu`, they should\n * use one or more `md-select-header`s. These elements can contain custom HTML which can be styled\n * as desired. Use cases for this element include a sticky search bar and custom option group\n * labels.\n *\n * <hljs lang=\"html\">\n *   <md-input-container>\n *     <md-select ng-model=\"someModel\">\n *       <md-select-header>\n *         <span> Neighborhoods - </span>\n *       </md-select-header>\n *       <md-option ng-value=\"opt\" ng-repeat=\"opt in neighborhoods2\">{{ opt }}</md-option>\n *     </md-select>\n *   </md-input-container>\n * </hljs>\n *\n * ## Selects and object equality\n * When using a `md-select` to pick from a list of objects, it is important to realize how javascript handles\n * equality. Consider the following example:\n * <hljs lang=\"js\">\n * angular.controller('MyCtrl', function($scope) {\n *   $scope.users = [\n *     { id: 1, name: 'Bob' },\n *     { id: 2, name: 'Alice' },\n *     { id: 3, name: 'Steve' }\n *   ];\n *   $scope.selectedUser = { id: 1, name: 'Bob' };\n * });\n * </hljs>\n * <hljs lang=\"html\">\n * <div ng-controller=\"MyCtrl\">\n *   <md-select ng-model=\"selectedUser\">\n *     <md-option ng-value=\"user\" ng-repeat=\"user in users\">{{ user.name }}</md-option>\n *   </md-select>\n * </div>\n * </hljs>\n *\n * At first one might expect that the select should be populated with \"Bob\" as the selected user.\n * However, this is not true. To determine whether something is selected,\n * `ngModelController` is looking at whether `$scope.selectedUser == (any user in $scope.users);`;\n *\n * Javascript's `==` operator does not check for deep equality (ie. that all properties\n * on the object are the same), but instead whether the objects are *the same object in memory*.\n * In this case, we have two instances of identical objects, but they exist in memory as unique\n * entities. Because of this, the select will have no value populated for a selected user.\n *\n * To get around this, `ngModelController` provides a `track by` option that allows us to specify a\n * different expression which will be used for the equality operator. As such, we can update our\n * `html` to make use of this by specifying the `ng-model-options=\"{trackBy: '$value.id'}\"` on the\n * `md-select` element. This converts our equality expression to be\n * `$scope.selectedUser.id == (any id in $scope.users.map(function(u) { return u.id; }));`\n * which results in Bob being selected as desired.\n *\n * **Note:** We do not support AngularJS's `track by` syntax. For instance\n *  `ng-options=\"user in users track by user.id\"` will not work with `md-select`.\n *\n * Working HTML:\n * <hljs lang=\"html\">\n * <div ng-controller=\"MyCtrl\">\n *   <md-select ng-model=\"selectedUser\" ng-model-options=\"{trackBy: '$value.id'}\">\n *     <md-option ng-value=\"user\" ng-repeat=\"user in users\">{{ user.name }}</md-option>\n *   </md-select>\n * </div>\n * </hljs>\n */\nfunction SelectDirective($mdSelect, $mdUtil, $mdConstant, $mdTheming, $mdAria, $parse, $sce) {\n  return {\n    restrict: 'E',\n    require: ['^?mdInputContainer', 'mdSelect', 'ngModel', '?^form'],\n    compile: compile,\n    controller: function() {\n    } // empty placeholder controller to be initialized in link\n  };\n\n  /**\n   * @param {JQLite} tElement\n   * @param {IAttributes} tAttrs\n   * @return {postLink}\n   */\n  function compile(tElement, tAttrs) {\n    var isMultiple = $mdUtil.parseAttributeBoolean(tAttrs.multiple);\n    tElement.addClass('md-auto-horizontal-margin');\n\n    // add the select value that will hold our placeholder or selected option value\n    var valueEl = angular.element('<md-select-value><span></span></md-select-value>');\n    valueEl.append('<span class=\"md-select-icon\" aria-hidden=\"true\"></span>');\n    valueEl.addClass('md-select-value');\n    if (!valueEl[0].hasAttribute('id')) {\n      valueEl.attr('id', 'select_value_label_' + $mdUtil.nextUid());\n    }\n\n    // There's got to be an md-content inside. If there's not one, let's add it.\n    var mdContentEl = tElement.find('md-content');\n    if (!mdContentEl.length) {\n      tElement.append(angular.element('<md-content>').append(tElement.contents()));\n      mdContentEl = tElement.find('md-content');\n    }\n    mdContentEl.attr('role', 'listbox');\n    mdContentEl.attr('tabindex', '-1');\n\n    if (isMultiple) {\n      mdContentEl.attr('aria-multiselectable', 'true');\n    } else {\n      mdContentEl.attr('aria-multiselectable', 'false');\n    }\n\n    // Add progress spinner for md-options-loading\n    if (tAttrs.mdOnOpen) {\n\n      // Show progress indicator while loading async\n      // Use ng-hide for `display:none` so the indicator does not interfere with the options list\n      tElement\n        .find('md-content')\n        .prepend(angular.element(\n          '<div>' +\n          ' <md-progress-circular md-mode=\"indeterminate\" ng-if=\"$$loadingAsyncDone === false\"' +\n          ' md-diameter=\"25px\"></md-progress-circular>' +\n          '</div>'\n        ));\n\n      // Hide list [of item options] while loading async\n      tElement\n        .find('md-option')\n        .attr('ng-show', '$$loadingAsyncDone');\n    }\n\n    if (tAttrs.name) {\n      var autofillClone = angular.element('<select class=\"md-visually-hidden\"></select>');\n      autofillClone.attr({\n        'name': tAttrs.name,\n        'aria-hidden': 'true',\n        'tabindex': '-1'\n      });\n      var opts = tElement.find('md-option');\n      angular.forEach(opts, function(el) {\n        var newEl = angular.element('<option>' + el.innerHTML + '</option>');\n        if (el.hasAttribute('ng-value')) {\n          newEl.attr('ng-value', el.getAttribute('ng-value'));\n        }\n        else if (el.hasAttribute('value')) {\n          newEl.attr('value', el.getAttribute('value'));\n        }\n        autofillClone.append(newEl);\n      });\n\n      // Adds an extra option that will hold the selected value for the\n      // cases where the select is a part of a non-AngularJS form. This can be done with a ng-model,\n      // however if the `md-option` is being `ng-repeat`-ed, AngularJS seems to insert a similar\n      // `option` node, but with a value of `? string: <value> ?` which would then get submitted.\n      // This also goes around having to prepend a dot to the name attribute.\n      autofillClone.append(\n        '<option ng-value=\"' + tAttrs.ngModel + '\" selected></option>'\n      );\n\n      tElement.parent().append(autofillClone);\n    }\n\n    // Use everything that's left inside element.contents() as the contents of the menu\n    var multipleContent = isMultiple ? 'multiple' : '';\n    var ngModelOptions = tAttrs.ngModelOptions ? $mdUtil.supplant('ng-model-options=\"{0}\"', [tAttrs.ngModelOptions]) : '';\n    var selectTemplate = '' +\n      '<div class=\"md-select-menu-container\" aria-hidden=\"true\" role=\"presentation\">' +\n      '  <md-select-menu role=\"presentation\" {0} {1}>{2}</md-select-menu>' +\n      '</div>';\n\n    selectTemplate = $mdUtil.supplant(selectTemplate, [multipleContent, ngModelOptions,  tElement.html()]);\n    tElement.empty().append(valueEl);\n    tElement.append(selectTemplate);\n\n    if (!tAttrs.tabindex) {\n      tAttrs.$set('tabindex', 0);\n    }\n\n    return function postLink(scope, element, attrs, ctrls) {\n      var untouched = true;\n      var isDisabled;\n\n      var containerCtrl = ctrls[0];\n      var mdSelectCtrl = ctrls[1];\n      var ngModelCtrl = ctrls[2];\n      var formCtrl = ctrls[3];\n      // grab a reference to the select menu value label\n      var selectValueElement = element.find('md-select-value');\n      var isReadonly = angular.isDefined(attrs.readonly);\n      var disableAsterisk = $mdUtil.parseAttributeBoolean(attrs.mdNoAsterisk);\n      var stopMdMultipleWatch;\n      var userDefinedLabelledby = angular.isDefined(attrs.ariaLabelledby);\n      var listboxContentElement = element.find('md-content');\n      var initialPlaceholder = element.attr('placeholder');\n\n      if (disableAsterisk) {\n        element.addClass('md-no-asterisk');\n      }\n\n      if (containerCtrl) {\n        var isErrorGetter = containerCtrl.isErrorGetter || function() {\n          return ngModelCtrl.$invalid && (ngModelCtrl.$touched || (formCtrl && formCtrl.$submitted));\n        };\n\n        if (containerCtrl.input) {\n          // We ignore inputs that are in the md-select-header.\n          // One case where this might be useful would be adding as searchbox.\n          if (element.find('md-select-header').find('input')[0] !== containerCtrl.input[0]) {\n            throw new Error(\"<md-input-container> can only have *one* child <input>, <textarea>, or <select> element!\");\n          }\n        }\n\n        containerCtrl.input = element;\n        if (!containerCtrl.label) {\n          $mdAria.expect(element, 'aria-label', initialPlaceholder);\n          var selectLabel = element.attr('aria-label');\n          if (!selectLabel) {\n            selectLabel = initialPlaceholder;\n          }\n          listboxContentElement.attr('aria-label', selectLabel);\n        } else {\n          containerCtrl.label.attr('aria-hidden', 'true');\n          listboxContentElement.attr('aria-label', containerCtrl.label.text());\n          containerCtrl.setHasPlaceholder(!!initialPlaceholder);\n        }\n\n        var stopInvalidWatch = scope.$watch(isErrorGetter, containerCtrl.setInvalid);\n      }\n\n      var selectContainer, selectScope, selectMenuCtrl;\n\n      selectContainer = findSelectContainer();\n      $mdTheming(element);\n\n      var originalRender = ngModelCtrl.$render;\n      ngModelCtrl.$render = function() {\n        originalRender();\n        syncSelectValueText();\n        inputCheckValue();\n      };\n\n      var stopPlaceholderObserver = attrs.$observe('placeholder', ngModelCtrl.$render);\n\n      var stopRequiredObserver = attrs.$observe('required', function (value) {\n        if (containerCtrl && containerCtrl.label) {\n          // Toggle the md-required class on the input containers label, because the input container\n          // is automatically applying the asterisk indicator on the label.\n          containerCtrl.label.toggleClass('md-required', value && !disableAsterisk);\n        }\n        element.removeAttr('aria-required');\n        if (value) {\n          listboxContentElement.attr('aria-required', 'true');\n        } else {\n          listboxContentElement.removeAttr('aria-required');\n        }\n      });\n\n      /**\n       * Set the contents of the md-select-value element. This element's contents are announced by\n       * screen readers and used for displaying the value of the select in both single and multiple\n       * selection modes.\n       * @param {string=} text A sanitized and trusted HTML string or a pure text string from user\n       *  input.\n       */\n      mdSelectCtrl.setSelectValueText = function(text) {\n        var useDefaultText = text === undefined || text === '';\n        // Whether the select label has been given via user content rather than the internal\n        // template of <md-option>\n        var isSelectLabelFromUser = false;\n\n        mdSelectCtrl.setIsPlaceholder(!text);\n\n        if (attrs.mdSelectedText && attrs.mdSelectedHtml) {\n          throw Error('md-select cannot have both `md-selected-text` and `md-selected-html`');\n        }\n\n        if (attrs.mdSelectedText || attrs.mdSelectedHtml) {\n          text = $parse(attrs.mdSelectedText || attrs.mdSelectedHtml)(scope);\n          isSelectLabelFromUser = true;\n        } else if (useDefaultText) {\n          // Use placeholder attribute, otherwise fallback to the md-input-container label\n          var tmpPlaceholder = attrs.placeholder ||\n              (containerCtrl && containerCtrl.label ? containerCtrl.label.text() : '');\n\n          text = tmpPlaceholder || '';\n          isSelectLabelFromUser = true;\n        }\n\n        var target = selectValueElement.children().eq(0);\n\n        if (attrs.mdSelectedHtml) {\n          // Using getTrustedHtml will run the content through $sanitize if it is not already\n          // explicitly trusted. If the ngSanitize module is not loaded, this will\n          // *correctly* throw an sce error.\n          target.html($sce.getTrustedHtml(text));\n        } else if (isSelectLabelFromUser) {\n          target.text(text);\n        } else {\n          // If we've reached this point, the text is not user-provided.\n          target.html(text);\n        }\n\n        if (useDefaultText) {\n          // Avoid screen readers double announcing the label name when no value has been selected\n          selectValueElement.attr('aria-hidden', 'true');\n          if (!userDefinedLabelledby) {\n            element.removeAttr('aria-labelledby');\n          }\n        } else {\n          selectValueElement.removeAttr('aria-hidden');\n          if (!userDefinedLabelledby) {\n            element.attr('aria-labelledby', element[0].id + ' ' + selectValueElement[0].id);\n          }\n        }\n      };\n\n      /**\n       * @param {boolean} isPlaceholder true to mark the md-select-value element and\n       *  input container, if one exists, with classes for styling when a placeholder is present.\n       *  false to remove those classes.\n       */\n      mdSelectCtrl.setIsPlaceholder = function(isPlaceholder) {\n          if (isPlaceholder) {\n            selectValueElement.addClass('md-select-placeholder');\n            // Don't hide the floating label if the md-select has a placeholder.\n            if (containerCtrl && containerCtrl.label && !element.attr('placeholder')) {\n              containerCtrl.label.addClass('md-placeholder');\n            }\n          } else {\n            selectValueElement.removeClass('md-select-placeholder');\n            if (containerCtrl && containerCtrl.label && !element.attr('placeholder')) {\n              containerCtrl.label.removeClass('md-placeholder');\n            }\n          }\n      };\n\n      if (!isReadonly) {\n        var handleBlur = function(event) {\n          // Attach before ngModel's blur listener to stop propagation of blur event\n          // and prevent setting $touched.\n          if (untouched) {\n            untouched = false;\n            if (selectScope._mdSelectIsOpen) {\n              event.stopImmediatePropagation();\n            }\n          }\n\n          containerCtrl && containerCtrl.setFocused(false);\n          inputCheckValue();\n        };\n        var handleFocus = function() {\n          // Always focus the container (if we have one) so floating labels and other styles are\n          // applied properly\n          containerCtrl && containerCtrl.setFocused(true);\n        };\n\n        element.on('focus', handleFocus);\n        element.on('blur', handleBlur);\n      }\n\n      mdSelectCtrl.triggerClose = function() {\n        $parse(attrs.mdOnClose)(scope);\n      };\n\n      scope.$$postDigest(function() {\n        initAriaLabel();\n        syncSelectValueText();\n      });\n\n      function initAriaLabel() {\n        var labelText = element.attr('aria-label') || element.attr('placeholder');\n        if (!labelText && containerCtrl && containerCtrl.label) {\n          labelText = containerCtrl.label.text();\n        }\n        $mdAria.expect(element, 'aria-label', labelText);\n      }\n\n      var stopSelectedLabelsWatcher = scope.$watch(function() {\n        return selectMenuCtrl.getSelectedLabels();\n      }, syncSelectValueText);\n\n      function syncSelectValueText() {\n        selectMenuCtrl = selectMenuCtrl ||\n          selectContainer.find('md-select-menu').controller('mdSelectMenu');\n        mdSelectCtrl.setSelectValueText(selectMenuCtrl.getSelectedLabels());\n      }\n\n      // TODO add tests for mdMultiple\n      // TODO add docs for mdMultiple\n      var stopMdMultipleObserver = attrs.$observe('mdMultiple', function(val) {\n        if (stopMdMultipleWatch) {\n          stopMdMultipleWatch();\n        }\n        var parser = $parse(val);\n        stopMdMultipleWatch = scope.$watch(function() {\n          return parser(scope);\n        }, function(multiple, prevVal) {\n          var selectMenu = selectContainer.find('md-select-menu');\n          // assume compiler did a good job\n          if (multiple === undefined && prevVal === undefined) {\n            return;\n          }\n          if (multiple) {\n            var setMultipleAttrs = {'multiple': 'multiple'};\n            element.attr(setMultipleAttrs);\n            selectMenu.attr(setMultipleAttrs);\n          } else {\n            element.removeAttr('multiple');\n            selectMenu.removeAttr('multiple');\n          }\n          element.find('md-content').attr('aria-multiselectable', multiple ? 'true' : 'false');\n\n          if (selectContainer) {\n            selectMenuCtrl.setMultiple(Boolean(multiple));\n            originalRender = ngModelCtrl.$render;\n            ngModelCtrl.$render = function() {\n              originalRender();\n              syncSelectValueText();\n              inputCheckValue();\n            };\n            ngModelCtrl.$render();\n          }\n        });\n      });\n\n      var stopDisabledObserver = attrs.$observe('disabled', function(disabled) {\n        if (angular.isString(disabled)) {\n          disabled = true;\n        }\n        // Prevent click event being registered twice\n        if (isDisabled !== undefined && isDisabled === disabled) {\n          return;\n        }\n        isDisabled = disabled;\n        if (disabled) {\n          element\n            .attr({'aria-disabled': 'true'})\n            .removeAttr('tabindex')\n            .removeAttr('aria-expanded')\n            .removeAttr('aria-haspopup')\n            .off('click', openSelect)\n            .off('keydown', handleKeypress);\n        } else {\n          element\n            .attr({\n              'tabindex': attrs.tabindex,\n              'aria-haspopup': 'listbox'\n            })\n            .removeAttr('aria-disabled')\n            .on('click', openSelect)\n            .on('keydown', handleKeypress);\n        }\n      });\n\n      if (!attrs.hasOwnProperty('disabled') && !attrs.hasOwnProperty('ngDisabled')) {\n        element.attr({'aria-disabled': 'false'});\n        element.on('click', openSelect);\n        element.on('keydown', handleKeypress);\n      }\n\n      var ariaAttrs = {\n        role: 'button',\n        'aria-haspopup': 'listbox'\n      };\n\n      if (!element[0].hasAttribute('id')) {\n        ariaAttrs.id = 'select_' + $mdUtil.nextUid();\n      }\n\n      var containerId = 'select_container_' + $mdUtil.nextUid();\n      selectContainer.attr('id', containerId);\n      var listboxContentId = 'select_listbox_' + $mdUtil.nextUid();\n      selectContainer.find('md-content').attr('id', listboxContentId);\n      // Only add aria-owns if element ownership is NOT represented in the DOM.\n      if (!element.find('md-select-menu').length) {\n        ariaAttrs['aria-owns'] = listboxContentId;\n      }\n      element.attr(ariaAttrs);\n\n      scope.$on('$destroy', function() {\n        stopRequiredObserver && stopRequiredObserver();\n        stopDisabledObserver && stopDisabledObserver();\n        stopMdMultipleWatch && stopMdMultipleWatch();\n        stopMdMultipleObserver && stopMdMultipleObserver();\n        stopSelectedLabelsWatcher && stopSelectedLabelsWatcher();\n        stopPlaceholderObserver && stopPlaceholderObserver();\n        stopInvalidWatch && stopInvalidWatch();\n\n        element.off('focus');\n        element.off('blur');\n\n        $mdSelect\n          .destroy()\n          .finally(function() {\n            if (containerCtrl) {\n              containerCtrl.setFocused(false);\n              containerCtrl.setHasValue(false);\n              containerCtrl.input = null;\n            }\n            ngModelCtrl.$setTouched();\n          });\n      });\n\n      function inputCheckValue() {\n        // The select counts as having a value if one or more options are selected,\n        // or if the input's validity state says it has bad input (eg: string in a number input).\n        // We must do this on nextTick as the $render is sometimes invoked on nextTick.\n        $mdUtil.nextTick(function () {\n          containerCtrl && containerCtrl.setHasValue(\n            selectMenuCtrl.getSelectedLabels().length > 0 || (element[0].validity || {}).badInput);\n        });\n      }\n\n      function findSelectContainer() {\n        var selectContainer = angular.element(\n          element[0].querySelector('.md-select-menu-container')\n        );\n        selectScope = scope;\n        attrs.mdContainerClass && selectContainer.addClass(attrs.mdContainerClass);\n        selectMenuCtrl = selectContainer.find('md-select-menu').controller('mdSelectMenu');\n        selectMenuCtrl.init(ngModelCtrl, attrs);\n        element.on('$destroy', function() {\n          selectContainer.remove();\n        });\n        return selectContainer;\n      }\n\n      /**\n       * Determine if the select menu should be opened or an option in the select menu should be\n       * selected.\n       * @param {KeyboardEvent} e keyboard event to handle\n       */\n      function handleKeypress(e) {\n        if ($mdConstant.isNavigationKey(e)) {\n          // prevent page scrolling on interaction\n          e.preventDefault();\n          openSelect(e);\n        } else {\n          if (shouldHandleKey(e, $mdConstant)) {\n            e.preventDefault();\n\n            var node = selectMenuCtrl.optNodeForKeyboardSearch(e);\n            if (!node || node.hasAttribute('disabled')) {\n              return;\n            }\n            var optionCtrl = angular.element(node).controller('mdOption');\n            if (!selectMenuCtrl.isMultiple) {\n              angular.forEach(Object.keys(selectMenuCtrl.selected), function (key) {\n                selectMenuCtrl.deselect(key);\n              });\n            }\n            selectMenuCtrl.select(optionCtrl.hashKey, optionCtrl.value);\n            selectMenuCtrl.refreshViewValue();\n          }\n        }\n      }\n\n      function openSelect() {\n        selectScope._mdSelectIsOpen = true;\n        element.attr('aria-expanded', 'true');\n\n        $mdSelect.show({\n          scope: selectScope,\n          preserveScope: true,\n          skipCompile: true,\n          element: selectContainer,\n          target: element[0],\n          selectCtrl: mdSelectCtrl,\n          preserveElement: true,\n          hasBackdrop: true,\n          loadingAsync: attrs.mdOnOpen ? scope.$eval(attrs.mdOnOpen) || true : false\n        }).finally(function() {\n          selectScope._mdSelectIsOpen = false;\n          element.removeAttr('aria-expanded');\n          element.removeAttr('aria-activedescendant');\n          ngModelCtrl.$setTouched();\n        });\n      }\n\n    };\n  }\n}\n\nfunction SelectMenuDirective($parse, $mdUtil, $mdConstant, $mdTheming) {\n  // We want the scope to be set to 'false' so an isolated scope is not created\n  // which would interfere with the md-select-header's access to the\n  // parent scope.\n  SelectMenuController.$inject = [\"$scope\", \"$attrs\", \"$element\"];\n  return {\n    restrict: 'E',\n    require: ['mdSelectMenu'],\n    scope: false,\n    controller: SelectMenuController,\n    link: {pre: preLink}\n  };\n\n  // We use preLink instead of postLink to ensure that the select is initialized before\n  // its child options run postLink.\n  function preLink(scope, element, attrs, ctrls) {\n    var selectMenuCtrl = ctrls[0];\n\n    element.addClass('_md');     // private md component indicator for styling\n\n    $mdTheming(element);\n    element.on('click', clickListener);\n    element.on('keypress', keyListener);\n\n    /**\n     * @param {KeyboardEvent} keyboardEvent\n     */\n    function keyListener(keyboardEvent) {\n      if (keyboardEvent.keyCode === 13 || keyboardEvent.keyCode === 32) {\n        clickListener(keyboardEvent);\n      }\n    }\n\n    /**\n     * @param {Event} mouseEvent\n     * @return {void}\n     */\n    function clickListener(mouseEvent) {\n      var option = $mdUtil.getClosest(mouseEvent.target, 'md-option');\n      var optionCtrl = option && angular.element(option).data('$mdOptionController');\n\n      if (!option || !optionCtrl) {\n        // Avoid closing the menu when the select header's input is clicked\n        if (mouseEvent.target && mouseEvent.target.parentNode &&\n          mouseEvent.target.parentNode.tagName === 'MD-SELECT-HEADER') {\n          mouseEvent.stopImmediatePropagation();\n        }\n        return;\n      } else if (option.hasAttribute('disabled')) {\n        mouseEvent.stopImmediatePropagation();\n        return;\n      }\n\n      var optionHashKey = selectMenuCtrl.hashGetter(optionCtrl.value);\n      var isSelected = angular.isDefined(selectMenuCtrl.selected[optionHashKey]);\n\n      scope.$apply(function() {\n        if (selectMenuCtrl.isMultiple) {\n          if (isSelected) {\n            selectMenuCtrl.deselect(optionHashKey);\n          } else {\n            selectMenuCtrl.select(optionHashKey, optionCtrl.value);\n          }\n        } else {\n          if (!isSelected) {\n            angular.forEach(Object.keys(selectMenuCtrl.selected), function (key) {\n              selectMenuCtrl.deselect(key);\n            });\n            selectMenuCtrl.select(optionHashKey, optionCtrl.value);\n          }\n        }\n        selectMenuCtrl.refreshViewValue();\n      });\n    }\n  }\n\n  function SelectMenuController($scope, $attrs, $element) {\n    var self = this;\n    var defaultIsEmpty;\n    var searchStr = '';\n    var clearSearchTimeout, optNodes, optText;\n    var CLEAR_SEARCH_AFTER = 300;\n\n    self.isMultiple = angular.isDefined($attrs.multiple);\n    // selected is an object with keys matching all of the selected options' hashed values\n    self.selected = {};\n    // options is an object with keys matching every option's hash value,\n    // and values containing an instance of every option's controller.\n    self.options = {};\n\n    $scope.$watchCollection(function() {\n      return self.options;\n    }, function() {\n      self.ngModel.$render();\n      updateOptionSetSizeAndPosition();\n    });\n\n    /**\n     * @param {boolean} isMultiple\n     */\n    self.setMultiple = function(isMultiple) {\n      var ngModel = self.ngModel;\n      defaultIsEmpty = defaultIsEmpty || ngModel.$isEmpty;\n      self.isMultiple = isMultiple;\n\n      if (self.isMultiple) {\n        // We want to delay the render method so that the directive has a chance to load before\n        // rendering, this prevents the control being marked as dirty onload.\n        var loaded = false;\n        var delayedRender = function(val) {\n          if (!loaded) {\n            $mdUtil.nextTick(function () {\n              renderMultiple(val);\n              loaded = true;\n            });\n          } else {\n            renderMultiple(val);\n          }\n        };\n        ngModel.$validators['md-multiple'] = validateArray;\n        ngModel.$render = delayedRender;\n\n        // watchCollection on the model because by default ngModel only watches the model's\n        // reference. This allows the developer to also push and pop from their array.\n        $scope.$watchCollection(self.modelBinding, function(value) {\n          if (validateArray(value)) {\n            delayedRender(value);\n          }\n        });\n\n        ngModel.$isEmpty = function(value) {\n          return !value || value.length === 0;\n        };\n      } else {\n        delete ngModel.$validators['md-multiple'];\n        ngModel.$render = renderSingular;\n      }\n\n      function validateArray(modelValue, viewValue) {\n        // If a value is truthy but not an array, reject it.\n        // If value is undefined/falsy, accept that it's an empty array.\n        return angular.isArray(modelValue || viewValue || []);\n      }\n    };\n\n    /**\n     * @param {KeyboardEvent} keyboardEvent keyboard event to handle\n     * @return {Element|HTMLElement|undefined}\n     */\n    self.optNodeForKeyboardSearch = function(keyboardEvent) {\n      var search, i;\n      clearSearchTimeout && clearTimeout(clearSearchTimeout);\n      clearSearchTimeout = setTimeout(function() {\n        clearSearchTimeout = undefined;\n        searchStr = '';\n        optText = undefined;\n        optNodes = undefined;\n      }, CLEAR_SEARCH_AFTER);\n\n      searchStr += keyboardEvent.key;\n      search = new RegExp('^' + $mdUtil.sanitize(searchStr), 'i');\n      if (!optNodes) {\n        optNodes = $element.find('md-option');\n        optText = new Array(optNodes.length);\n        angular.forEach(optNodes, function(el, i) {\n          optText[i] = el.textContent.trim();\n        });\n      }\n\n      for (i = 0; i < optText.length; ++i) {\n        if (search.test(optText[i])) {\n          return optNodes[i];\n        }\n      }\n    };\n\n    self.init = function(ngModel, parentAttrs) {\n      self.ngModel = ngModel;\n      self.modelBinding = parentAttrs.ngModel;\n\n      // Setup a more robust version of isEmpty to ensure value is a valid option\n      self.ngModel.$isEmpty = function($viewValue) {\n        // We have to transform the viewValue into the hashKey, because otherwise the\n        // OptionCtrl may not exist. Developers may have specified a trackBy function.\n        var hashedValue = self.options[self.hashGetter($viewValue)] ? self.options[self.hashGetter($viewValue)].value : null;\n        // Base this check on the default AngularJS $isEmpty() function.\n        // eslint-disable-next-line no-self-compare\n        return !angular.isDefined(hashedValue) || hashedValue === null || hashedValue === '' || hashedValue !== hashedValue;\n      };\n\n      // Allow users to provide `ng-model=\"foo\" ng-model-options=\"{trackBy: '$value.id'}\"` so\n      // that we can properly compare objects set on the model to the available options\n      //\n      // If the user doesn't provide a trackBy, we automatically generate an id for every\n      // value passed in with the getId function\n      if ($attrs.ngModelOptions) {\n        self.hashGetter = function(value) {\n          var ngModelOptions = $parse($attrs.ngModelOptions)($scope);\n          var trackByOption = ngModelOptions && ngModelOptions.trackBy;\n\n          if (trackByOption) {\n            return $parse(trackByOption)($scope, { $value: value });\n          } else if (angular.isObject(value)) {\n            return getId(value);\n          }\n          return value;\n        };\n      } else {\n        self.hashGetter = getId;\n      }\n      self.setMultiple(self.isMultiple);\n\n      /**\n       * If the value is an object, get the unique, incremental id of the value.\n       * If it's not an object, the value will be converted to a string and then returned.\n       * @param value\n       * @returns {string}\n       */\n      function getId(value) {\n        if (angular.isObject(value) && !angular.isArray(value)) {\n          return 'object_' + (value.$$mdSelectId || (value.$$mdSelectId = ++selectNextId));\n        }\n        return value + '';\n      }\n\n      if (parentAttrs.hasOwnProperty('mdSelectOnlyOption')) {\n        $mdUtil.nextTick(function() {\n          var optionKeys = Object.keys(self.options);\n\n          if (optionKeys.length === 1) {\n            var option = self.options[optionKeys[0]];\n\n            self.deselect(Object.keys(self.selected)[0]);\n            self.select(self.hashGetter(option.value), option.value);\n            self.refreshViewValue();\n            self.ngModel.$setPristine();\n          }\n        }, false);\n      }\n    };\n\n    /**\n     * @param {string=} id\n     */\n    self.setActiveDescendant = function(id) {\n      if (angular.isDefined(id)) {\n        $element.find('md-content').attr('aria-activedescendant', id);\n      } else {\n        $element.find('md-content').removeAttr('aria-activedescendant');\n      }\n    };\n\n    /**\n     * @param {{mode: string}=} opts options object to allow specifying html (default) or aria mode.\n     * @return {string} comma separated set of selected values\n     */\n    self.getSelectedLabels = function(opts) {\n      opts = opts || {};\n      var mode = opts.mode || 'html';\n      var selectedOptionEls =\n        $mdUtil.nodesToArray($element[0].querySelectorAll('md-option[selected]'));\n\n      if (selectedOptionEls.length) {\n        var mapFn;\n\n        if (mode === 'html') {\n          // Map the given element to its innerHTML string. If the element has a child ripple\n          // container remove it from the HTML string, before returning the string.\n          mapFn = function(el) {\n            // If we do not have a `value` or `ng-value`, assume it is an empty option which clears\n            // the select.\n            if (el.hasAttribute('md-option-empty')) {\n              return '';\n            }\n\n            var html = el.innerHTML;\n\n            // Remove the ripple container from the selected option, copying it would cause a CSP\n            // violation.\n            var rippleContainer = el.querySelector('.md-ripple-container');\n            if (rippleContainer) {\n              html = html.replace(rippleContainer.outerHTML, '');\n            }\n\n            // Remove the checkbox container, because it will cause the label to wrap inside of the\n            // placeholder. It should be not displayed inside of the label element.\n            var checkboxContainer = el.querySelector('.md-container');\n            if (checkboxContainer) {\n              html = html.replace(checkboxContainer.outerHTML, '');\n            }\n\n            return html;\n          };\n        } else if (mode === 'aria') {\n          mapFn = function(el) {\n            return el.hasAttribute('aria-label') ? el.getAttribute('aria-label') : el.textContent;\n          };\n        }\n\n        // Ensure there are no duplicates; see https://github.com/angular/material/issues/9442\n        return $mdUtil.uniq(selectedOptionEls.map(mapFn)).join(', ');\n      } else {\n        return '';\n      }\n    };\n\n    /**\n     * Mark an option as selected\n     * @param {string} hashKey key within the SelectMenuController.options object, which is an\n     *  instance of OptionController.\n     * @param {OptionController} hashedValue value to associate with the key\n     */\n    self.select = function(hashKey, hashedValue) {\n      var option = self.options[hashKey];\n      option && option.setSelected(true, self.isMultiple);\n      self.selected[hashKey] = hashedValue;\n    };\n\n    /**\n     * Mark an option as not selected\n     * @param {string} hashKey key within the SelectMenuController.options object, which is an\n     *  instance of OptionController.\n     */\n    self.deselect = function(hashKey) {\n      var option = self.options[hashKey];\n      option && option.setSelected(false, self.isMultiple);\n      delete self.selected[hashKey];\n    };\n\n    /**\n     * Add an option to the select\n     * @param {string} hashKey key within the SelectMenuController.options object, which is an\n     *  instance of OptionController.\n     * @param {OptionController} optionCtrl instance to associate with the key\n     */\n    self.addOption = function(hashKey, optionCtrl) {\n      if (angular.isDefined(self.options[hashKey])) {\n        throw new Error('Duplicate md-option values are not allowed in a select. ' +\n          'Duplicate value \"' + optionCtrl.value + '\" found.');\n      }\n\n      self.options[hashKey] = optionCtrl;\n\n      // If this option's value was already in our ngModel, go ahead and select it.\n      if (angular.isDefined(self.selected[hashKey])) {\n        self.select(hashKey, optionCtrl.value);\n\n        // When the current $modelValue of the ngModel Controller is using the same hash as\n        // the current option, which will be added, then we can be sure, that the validation\n        // of the option has occurred before the option was added properly.\n        // This means, that we have to manually trigger a new validation of the current option.\n        if (angular.isDefined(self.ngModel.$$rawModelValue) &&\n            self.hashGetter(self.ngModel.$$rawModelValue) === hashKey) {\n          self.ngModel.$validate();\n        }\n\n        self.refreshViewValue();\n      }\n    };\n\n    /**\n     * Remove an option from the select\n     * @param {string} hashKey key within the SelectMenuController.options object, which is an\n     *  instance of OptionController.\n     */\n    self.removeOption = function(hashKey) {\n      delete self.options[hashKey];\n      // Don't deselect an option when it's removed - the user's ngModel should be allowed\n      // to have values that do not match a currently available option.\n    };\n\n    self.refreshViewValue = function() {\n      var values = [];\n      var option;\n      for (var hashKey in self.selected) {\n        // If this hashKey has an associated option, push that option's value to the model.\n        if ((option = self.options[hashKey])) {\n          values.push(option.value);\n        } else {\n          // Otherwise, the given hashKey has no associated option, and we got it\n          // from an ngModel value at an earlier time. Push the unhashed value of\n          // this hashKey to the model.\n          // This allows the developer to put a value in the model that doesn't yet have\n          // an associated option.\n          values.push(self.selected[hashKey]);\n        }\n      }\n\n      var newVal = self.isMultiple ? values : values[0];\n      var prevVal = self.ngModel.$modelValue;\n\n      if (!equals(prevVal, newVal)) {\n        self.ngModel.$setViewValue(newVal);\n        self.ngModel.$render();\n      }\n\n      function equals(prevVal, newVal) {\n        if (self.isMultiple) {\n          if (!angular.isArray(prevVal)) {\n            // newVal is always an array when self.isMultiple is true\n            // thus, if prevVal is not an array they are different\n            return false;\n          } else if (prevVal.length !== newVal.length) {\n            // they are different if they have different length\n            return false;\n          } else {\n            // if they have the same length, then they are different\n            // if an item in the newVal array can't be found in the prevVal\n            var prevValHashes = prevVal.map(function(prevValItem) {\n              return self.hashGetter(prevValItem);\n            });\n            return newVal.every(function(newValItem) {\n              var newValItemHash = self.hashGetter(newValItem);\n              return prevValHashes.some(function(prevValHash) {\n                return prevValHash === newValItemHash;\n              });\n            });\n          }\n        } else {\n          return self.hashGetter(prevVal) === self.hashGetter(newVal);\n        }\n      }\n    };\n\n    /**\n     * If the options include md-optgroups, then we need to apply aria-setsize and aria-posinset\n     * to help screen readers understand the indexes. When md-optgroups are not used, we save on\n     * perf and extra attributes by not applying these attributes as they are not needed by screen\n     * readers.\n     */\n    function updateOptionSetSizeAndPosition() {\n      var i, options;\n      var hasOptGroup = $element.find('md-optgroup');\n      if (!hasOptGroup.length) {\n        return;\n      }\n\n      options = $element.find('md-option');\n\n      for (i = 0; i < options.length; i++) {\n        options[i].setAttribute('aria-setsize', options.length);\n        options[i].setAttribute('aria-posinset', i + 1);\n      }\n    }\n\n    function renderMultiple() {\n      var newSelectedValues = self.ngModel.$modelValue || self.ngModel.$viewValue || [];\n      if (!angular.isArray(newSelectedValues)) {\n        return;\n      }\n\n      var oldSelected = Object.keys(self.selected);\n\n      var newSelectedHashes = newSelectedValues.map(self.hashGetter);\n      var deselected = oldSelected.filter(function(hash) {\n        return newSelectedHashes.indexOf(hash) === -1;\n      });\n\n      deselected.forEach(self.deselect);\n      newSelectedHashes.forEach(function(hashKey, i) {\n        self.select(hashKey, newSelectedValues[i]);\n      });\n    }\n\n    function renderSingular() {\n      var value = self.ngModel.$viewValue || self.ngModel.$modelValue;\n      Object.keys(self.selected).forEach(self.deselect);\n      self.select(self.hashGetter(value), value);\n    }\n  }\n}\n\n/**\n * @ngdoc directive\n * @name mdOption\n * @restrict E\n * @module material.components.select\n *\n * @description Displays an option in a <a ng-href=\"api/directive/mdSelect\">md-select</a> box's\n * dropdown menu. Options can be grouped using\n * <a ng-href=\"api/directive/mdOptgroup\">md-optgroup</a> element directives.\n *\n * ### Option Params\n *\n * When applied, `md-option-empty` will mark the option as \"empty\" allowing the option to clear the\n * select and put it back in it's default state. You may supply this attribute on any option you\n * wish, however, it is automatically applied to an option whose `value` or `ng-value` are not\n * defined.\n *\n * **Automatically Applied**\n *\n *  - `<md-option>`\n *  - `<md-option value>`\n *  - `<md-option value=\"\">`\n *  - `<md-option ng-value>`\n *  - `<md-option ng-value=\"\">`\n *\n * **NOT Automatically Applied**\n *\n *  - `<md-option ng-value=\"1\">`\n *  - `<md-option ng-value=\"''\">`\n *  - `<md-option ng-value=\"undefined\">`\n *  - `<md-option value=\"undefined\">` (this evaluates to the string `\"undefined\"`)\n *  - <code ng-non-bindable>&lt;md-option ng-value=\"{{someValueThatMightBeUndefined}}\"&gt;</code>\n *\n * **Note:** A value of `undefined` ***is considered a valid value*** (and does not auto-apply this\n * attribute) since you may wish this to be your \"Not Available\" or \"None\" option.\n *\n * **Note:** Using the\n * <a ng-href=\"https://developer.mozilla.org/en-US/docs/Web/HTML/Element/option#Attributes\">value</a>\n * attribute from the `<option>` element (as opposed to the `<md-option>` element's\n * <a ng-href=\"https://docs.angularjs.org/api/ng/directive/ngValue\">ng-value</a>) always evaluates\n * to a `string`. This means that `value=\"null\"` will cause a check against `myValue != \"null\"`\n * rather than `!myValue` or `myValue != null`.\n * Importantly, this also applies to `number` values. `value=\"1\"` will not match up with an\n * `ng-model` like `$scope.selectedValue = 1`. Use `ng-value=\"1\"` in this case and other cases where\n * you have values that are not strings.\n *\n * **Note:** Please see our <a ng-href=\"api/directive/mdSelect#selects-and-object-equality\">docs on\n * using objects with `md-select`</a> for additional guidance on using the `trackBy` option with\n * `ng-model-options`.\n *\n * @param {expression=} ng-value Binds the given expression to the value of the option.\n * @param {string=} value Attribute to set the value of the option.\n * @param {expression=} ng-repeat <a ng-href=\"https://docs.angularjs.org/api/ng/directive/ngRepeat\">\n *  AngularJS directive</a> that instantiates a template once per item from a collection.\n * @param {expression=} ng-selected <a ng-href=\"https://docs.angularjs.org/api/ng/directive/ngSelected\">\n *  AngularJS directive</a> that adds the `selected` attribute to the option when the expression\n *  evaluates as truthy.\n *\n *  **Note:** Unlike native `option` elements used with AngularJS, `md-option` elements\n *  watch their `selected` attributes for changes and trigger model value changes on `md-select`.\n * @param {boolean=} md-option-empty If the attribute exists, mark the option as \"empty\" allowing\n * the option to clear the select and put it back in it's default state. You may supply this\n * attribute on any option you wish, however, it is automatically applied to an option whose `value`\n * or `ng-value` are not defined.\n * @param {number=} tabindex The `tabindex` of the option. Defaults to `0`.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-select ng-model=\"currentState\" placeholder=\"Select a state\">\n *   <md-option ng-value=\"AL\">Alabama</md-option>\n *   <md-option ng-value=\"AK\">Alaska</md-option>\n *   <md-option ng-value=\"FL\">Florida</md-option>\n * </md-select>\n * </hljs>\n *\n * With `ng-repeat`:\n * <hljs lang=\"html\">\n * <md-select ng-model=\"currentState\" placeholder=\"Select a state\">\n *   <md-option ng-value=\"state\" ng-repeat=\"state in states\">{{ state }}</md-option>\n * </md-select>\n * </hljs>\n */\nfunction OptionDirective($mdButtonInkRipple, $mdUtil, $mdTheming) {\n\n  return {\n    restrict: 'E',\n    require: ['mdOption', '^^mdSelectMenu'],\n    controller: OptionController,\n    compile: compile\n  };\n\n  /**\n   * @param {JQLite} element\n   * @param {IAttributes} attrs\n   * @return {postLink}\n   */\n  function compile(element, attrs) {\n    // Manual transclusion to avoid the extra inner <span> that ng-transclude generates\n    element.append(angular.element('<div class=\"md-text\">').append(element.contents()));\n\n    element.attr('tabindex', attrs.tabindex || '0');\n\n    if (!hasDefinedValue(attrs)) {\n      element.attr('md-option-empty', '');\n    }\n\n    return postLink;\n  }\n\n  /**\n   * @param {Object} attrs list of attributes from the compile function\n   * @return {string|undefined|null} if defined and non-empty, return the value of the option's\n   *  value attribute, otherwise return the value of the option's ng-value attribute.\n   */\n  function hasDefinedValue(attrs) {\n    var value = attrs.value;\n    var ngValue = attrs.ngValue;\n\n    return value || ngValue;\n  }\n\n  function postLink(scope, element, attrs, ctrls) {\n    var optionCtrl = ctrls[0];\n    var selectMenuCtrl = ctrls[1];\n\n    $mdTheming(element);\n\n    if (selectMenuCtrl.isMultiple) {\n      element.addClass('md-checkbox-enabled');\n      if (!CHECKBOX_SELECTION_INDICATOR) {\n        var indicator = document.createElement('div');\n        indicator.className = 'md-container';\n        indicator.appendChild(document.createElement('div'));\n        indicator.firstChild.className = 'md-icon';\n        CHECKBOX_SELECTION_INDICATOR = angular.element(indicator);\n      }\n      element.prepend(CHECKBOX_SELECTION_INDICATOR.clone());\n    }\n\n    if (angular.isDefined(attrs.ngValue)) {\n      scope.$watch(attrs.ngValue, function (newValue, oldValue) {\n        setOptionValue(newValue, oldValue);\n        element.removeAttr('aria-checked');\n      });\n    } else if (angular.isDefined(attrs.value)) {\n      setOptionValue(attrs.value);\n    } else {\n      scope.$watch(function() {\n        return element.text().trim();\n      }, setOptionValue);\n    }\n\n    attrs.$observe('disabled', function(disabled) {\n      if (disabled) {\n        element.attr('tabindex', '-1');\n      } else {\n        element.attr('tabindex', '0');\n      }\n    });\n\n    scope.$$postDigest(function() {\n      attrs.$observe('selected', function(selected) {\n        if (!angular.isDefined(selected)) return;\n        if (typeof selected == 'string') selected = true;\n        if (selected) {\n          if (!selectMenuCtrl.isMultiple) {\n            selectMenuCtrl.deselect(Object.keys(selectMenuCtrl.selected)[0]);\n          }\n          selectMenuCtrl.select(optionCtrl.hashKey, optionCtrl.value);\n        } else {\n          selectMenuCtrl.deselect(optionCtrl.hashKey);\n        }\n        selectMenuCtrl.refreshViewValue();\n      });\n    });\n\n    $mdButtonInkRipple.attach(scope, element);\n    configureAria();\n\n    /**\n     * @param {*} newValue the option's new value\n     * @param {*=} oldValue the option's previous value\n     * @param {boolean=} prevAttempt true if this had to be attempted again due to an undefined\n     *  hashGetter on the selectMenuCtrl, undefined otherwise.\n     */\n    function setOptionValue(newValue, oldValue, prevAttempt) {\n      if (!selectMenuCtrl.hashGetter) {\n        if (!prevAttempt) {\n          scope.$$postDigest(function() {\n            setOptionValue(newValue, oldValue, true);\n          });\n        }\n        return;\n      }\n      var oldHashKey = selectMenuCtrl.hashGetter(oldValue, scope);\n      var newHashKey = selectMenuCtrl.hashGetter(newValue, scope);\n\n      optionCtrl.hashKey = newHashKey;\n      optionCtrl.value = newValue;\n\n      selectMenuCtrl.removeOption(oldHashKey, optionCtrl);\n      selectMenuCtrl.addOption(newHashKey, optionCtrl);\n    }\n\n    scope.$on('$destroy', function() {\n      selectMenuCtrl.removeOption(optionCtrl.hashKey, optionCtrl);\n    });\n\n    function configureAria() {\n      var ariaAttrs = {\n        'role': 'option'\n      };\n\n      // We explicitly omit the `aria-selected` attribute from single-selection, unselected\n      // options. Including the `aria-selected=\"false\"` attributes adds a significant amount of\n      // noise to screen-reader users without providing useful information.\n      if (selectMenuCtrl.isMultiple) {\n        ariaAttrs['aria-selected'] = 'false';\n      }\n\n      if (!element[0].hasAttribute('id')) {\n        ariaAttrs.id = 'select_option_' + $mdUtil.nextUid();\n      }\n      element.attr(ariaAttrs);\n    }\n  }\n}\n\n/**\n * @param {JQLite} $element\n * @constructor\n */\nfunction OptionController($element) {\n  /**\n   * @param {boolean} isSelected\n   * @param {boolean=} isMultiple\n   */\n  this.setSelected = function(isSelected, isMultiple) {\n    if (isSelected) {\n      $element.attr({\n        'selected': 'true',\n        'aria-selected': 'true'\n      });\n    } else if (!isSelected) {\n      $element.removeAttr('selected');\n\n      if (isMultiple) {\n        $element.attr('aria-selected', 'false');\n      } else {\n        // We explicitly omit the `aria-selected` attribute from single-selection, unselected\n        // options. Including the `aria-selected=\"false\"` attributes adds a significant amount of\n        // noise to screen-reader users without providing useful information.\n        $element.removeAttr('aria-selected');\n      }\n    }\n  };\n}\n\n/**\n * @ngdoc directive\n * @name mdOptgroup\n * @restrict E\n * @module material.components.select\n *\n * @description Displays a label separating groups of\n * <a ng-href=\"api/directive/mdOption\">md-option</a> element directives in a\n * <a ng-href=\"api/directive/mdSelect\">md-select</a> box's dropdown menu.\n *\n * **Note:** When using `md-select-header` element directives within a `md-select`, the labels that\n * would normally be added to the <a ng-href=\"api/directive/mdOptgroup\">md-optgroup</a> directives\n * are omitted, allowing the `md-select-header` to represent the option group label\n * (and possibly more).\n *\n * @usage\n * With label attributes\n * <hljs lang=\"html\">\n * <md-select ng-model=\"currentState\" placeholder=\"Select a state\">\n *   <md-optgroup label=\"Southern\">\n *     <md-option ng-value=\"AL\">Alabama</md-option>\n *     <md-option ng-value=\"FL\">Florida</md-option>\n *   </md-optgroup>\n *   <md-optgroup label=\"Northern\">\n *     <md-option ng-value=\"AK\">Alaska</md-option>\n *     <md-option ng-value=\"MA\">Massachusetts</md-option>\n *   </md-optgroup>\n * </md-select>\n * </hljs>\n *\n * With label elements\n * <hljs lang=\"html\">\n * <md-select ng-model=\"currentState\" placeholder=\"Select a state\">\n *   <md-optgroup>\n *     <label>Southern</label>\n *     <md-option ng-value=\"AL\">Alabama</md-option>\n *     <md-option ng-value=\"FL\">Florida</md-option>\n *   </md-optgroup>\n *   <md-optgroup>\n *     <label>Northern</label>\n *     <md-option ng-value=\"AK\">Alaska</md-option>\n *     <md-option ng-value=\"MA\">Massachusetts</md-option>\n *   </md-optgroup>\n * </md-select>\n * </hljs>\n *\n * @param {string=} label The option group's label.\n */\nfunction OptgroupDirective() {\n  return {\n    restrict: 'E',\n    compile: compile\n  };\n  function compile(element, attrs) {\n    // If we have a select header element, we don't want to add the normal label\n    // header.\n    if (!hasSelectHeader()) {\n      setupLabelElement();\n    }\n    element.attr('role', 'group');\n\n    function hasSelectHeader() {\n      return element.parent().find('md-select-header').length;\n    }\n\n    function setupLabelElement() {\n      var labelElement = element.find('label');\n      if (!labelElement.length) {\n        labelElement = angular.element('<label>');\n        element.prepend(labelElement);\n      }\n      labelElement.addClass('md-container-ignore');\n      labelElement.attr('aria-hidden', 'true');\n      if (attrs.label) {\n        labelElement.text(attrs.label);\n      }\n      element.attr('aria-label', labelElement.text());\n    }\n  }\n}\n\nfunction SelectHeaderDirective() {\n  return {\n    restrict: 'E',\n  };\n}\n\nfunction SelectProvider($$interimElementProvider) {\n  selectDefaultOptions.$inject = [\"$mdSelect\", \"$mdConstant\", \"$mdUtil\", \"$window\", \"$q\", \"$$rAF\", \"$animateCss\", \"$animate\", \"$document\"];\n  return $$interimElementProvider('$mdSelect')\n    .setDefaults({\n      methods: ['target'],\n      options: selectDefaultOptions\n    });\n\n  /* @ngInject */\n  function selectDefaultOptions($mdSelect, $mdConstant, $mdUtil, $window, $q, $$rAF, $animateCss, $animate, $document) {\n    var ERROR_TARGET_EXPECTED = \"$mdSelect.show() expected a target element in options.target but got '{0}'!\";\n    var animator = $mdUtil.dom.animator;\n    var keyCodes = $mdConstant.KEY_CODE;\n\n    return {\n      parent: 'body',\n      themable: true,\n      onShow: onShow,\n      onRemove: onRemove,\n      hasBackdrop: true,\n      disableParentScroll: true\n    };\n\n    /**\n     * Interim-element onRemove logic....\n     */\n    function onRemove(scope, element, opts) {\n      var animationRunner = null;\n      var destroyListener = scope.$on('$destroy', function() {\n        // Listen for the case where the element was destroyed while there was an\n        // ongoing close animation. If this happens, we need to end the animation\n        // manually.\n        animationRunner.end();\n      });\n\n      opts = opts || { };\n      opts.cleanupInteraction();\n      opts.cleanupResizing();\n      opts.hideBackdrop();\n\n      // For navigation $destroy events, do a quick, non-animated removal,\n      // but for normal closes (from clicks, etc) animate the removal\n      return (opts.$destroy === true) ? cleanElement() : animateRemoval().then(cleanElement);\n\n      /**\n       * For normal closes (eg clicks), animate the removal.\n       * For forced closes (like $destroy events from navigation),\n       * skip the animations.\n       */\n      function animateRemoval() {\n        animationRunner = $animateCss(element, {addClass: 'md-leave'});\n        return animationRunner.start();\n      }\n\n      /**\n       * Restore the element to a closed state\n       */\n      function cleanElement() {\n        destroyListener();\n\n        element\n          .removeClass('md-active')\n          .attr('aria-hidden', 'true')\n          .css({\n            'display': 'none',\n            'top': '',\n            'right': '',\n            'bottom': '',\n            'left': '',\n            'font-size': '',\n            'min-width': ''\n          });\n\n        announceClosed(opts);\n\n        if (!opts.$destroy) {\n          if (opts.restoreFocus) {\n            opts.target.focus();\n          } else {\n            // Make sure that the container's md-input-focused is removed on backdrop click.\n            $mdUtil.nextTick(function() {\n              opts.target.triggerHandler('blur');\n            }, true);\n          }\n        }\n      }\n    }\n\n    /**\n     * Interim-element onShow logic.\n     */\n    function onShow(scope, element, opts) {\n\n      watchAsyncLoad();\n      sanitizeAndConfigure(scope, opts);\n\n      opts.hideBackdrop = showBackdrop(scope, element, opts);\n\n      return showDropDown(scope, element, opts)\n        .then(function(response) {\n          element.attr('aria-hidden', 'false');\n          opts.alreadyOpen = true;\n          opts.cleanupInteraction = activateInteraction();\n          opts.cleanupResizing = activateResizing();\n          opts.contentEl[0].focus();\n\n          return response;\n        }, opts.hideBackdrop);\n\n      // ************************************\n      // Closure Functions\n      // ************************************\n\n      /**\n       * Attach the select DOM element(s) and animate to the correct positions and scale.\n       */\n      function showDropDown(scope, element, opts) {\n        if (opts.parent !== element.parent()) {\n          element.parent().attr('aria-owns', element.find('md-content').attr('id'));\n        }\n\n        opts.parent.append(element);\n\n        return $q(function(resolve, reject) {\n          try {\n            $animateCss(element, {removeClass: 'md-leave', duration: 0})\n              .start()\n              .then(positionAndFocusMenu)\n              .then(resolve);\n\n          } catch (e) {\n            reject(e);\n          }\n        });\n      }\n\n      /**\n       * Initialize container and dropDown menu positions/scale, then animate to show.\n       * @return {*} a Promise that resolves after the menu is animated in and an item is focused\n       */\n      function positionAndFocusMenu() {\n        return $q(function(resolve) {\n          if (opts.isRemoved) return $q.reject(false);\n\n          var info = calculateMenuPositions(scope, element, opts);\n\n          info.container.element.css(animator.toCss(info.container.styles));\n          info.dropDown.element.css(animator.toCss(info.dropDown.styles));\n\n          $$rAF(function() {\n            element.addClass('md-active');\n            info.dropDown.element.css(animator.toCss({transform: ''}));\n            autoFocus(opts.focusedNode);\n\n            resolve();\n          });\n\n        });\n      }\n\n      /**\n       * Show modal backdrop element.\n       */\n      function showBackdrop(scope, element, options) {\n\n        // If we are not within a dialog...\n        if (options.disableParentScroll && !$mdUtil.getClosest(options.target, 'MD-DIALOG')) {\n          // !! DO this before creating the backdrop; since disableScrollAround()\n          //    configures the scroll offset; which is used by mdBackDrop postLink()\n          options.restoreScroll = $mdUtil.disableScrollAround(options.element, options.parent);\n        } else {\n          options.disableParentScroll = false;\n        }\n\n        if (options.hasBackdrop) {\n          // Override duration to immediately show invisible backdrop\n          options.backdrop = $mdUtil.createBackdrop(scope, \"md-select-backdrop md-click-catcher\");\n          $animate.enter(options.backdrop, $document[0].body, null, {duration: 0});\n        }\n\n        /**\n         * Hide modal backdrop element...\n         */\n        return function hideBackdrop() {\n          if (options.backdrop) options.backdrop.remove();\n          if (options.disableParentScroll) options.restoreScroll();\n\n          delete options.restoreScroll;\n        };\n      }\n\n      /**\n       * @param {Element|HTMLElement|null=} previousNode\n       * @param {Element|HTMLElement} node\n       * @param {SelectMenuController|Function|object=} menuController SelectMenuController instance\n       */\n      function focusOptionNode(previousNode, node, menuController) {\n        var listboxContentNode = opts.contentEl[0];\n\n        if (node) {\n          if (previousNode) {\n            previousNode.classList.remove('md-focused');\n          }\n\n          node.classList.add('md-focused');\n          if (menuController && menuController.setActiveDescendant) {\n            menuController.setActiveDescendant(node.id);\n          }\n\n          // Scroll the node into view if needed.\n          if (listboxContentNode.scrollHeight > listboxContentNode.clientHeight) {\n            var scrollBottom = listboxContentNode.clientHeight + listboxContentNode.scrollTop;\n            var nodeBottom = node.offsetTop + node.offsetHeight;\n            if (nodeBottom > scrollBottom) {\n              listboxContentNode.scrollTop = nodeBottom - listboxContentNode.clientHeight;\n            } else if (node.offsetTop < listboxContentNode.scrollTop) {\n              listboxContentNode.scrollTop = node.offsetTop;\n            }\n          }\n          opts.focusedNode = node;\n          if (menuController && menuController.refreshViewValue) {\n            menuController.refreshViewValue();\n          }\n        }\n      }\n\n      /**\n       * @param {Element|HTMLElement} nodeToFocus\n       */\n      function autoFocus(nodeToFocus) {\n        var selectMenuController;\n        if (nodeToFocus && !nodeToFocus.hasAttribute('disabled')) {\n          selectMenuController = opts.selectEl.controller('mdSelectMenu');\n          focusOptionNode(null, nodeToFocus, selectMenuController);\n        }\n      }\n\n      /**\n       * Check for valid opts and set some useful defaults\n       */\n      function sanitizeAndConfigure(scope, options) {\n        var selectMenuElement = element.find('md-select-menu');\n\n        if (!options.target) {\n          throw new Error($mdUtil.supplant(ERROR_TARGET_EXPECTED, [options.target]));\n        }\n\n        angular.extend(options, {\n          isRemoved: false,\n          target: angular.element(options.target), // make sure it's not a naked DOM node\n          parent: angular.element(options.parent),\n          selectEl: selectMenuElement,\n          contentEl: element.find('md-content'),\n          optionNodes: selectMenuElement[0].getElementsByTagName('md-option')\n        });\n      }\n\n      /**\n       * Configure various resize listeners for screen changes\n       */\n      function activateResizing() {\n        var debouncedOnResize = (function(scope, target, options) {\n\n          return function() {\n            if (options.isRemoved) return;\n\n            var updates = calculateMenuPositions(scope, target, options);\n            var container = updates.container;\n            var dropDown = updates.dropDown;\n\n            container.element.css(animator.toCss(container.styles));\n            dropDown.element.css(animator.toCss(dropDown.styles));\n          };\n\n        })(scope, element, opts);\n\n        var window = angular.element($window);\n        window.on('resize', debouncedOnResize);\n        window.on('orientationchange', debouncedOnResize);\n\n        // Publish deactivation closure...\n        return function deactivateResizing() {\n\n          // Disable resizing handlers\n          window.off('resize', debouncedOnResize);\n          window.off('orientationchange', debouncedOnResize);\n        };\n      }\n\n      /**\n       * If asynchronously loading, watch and update internal '$$loadingAsyncDone' flag.\n       */\n      function watchAsyncLoad() {\n        if (opts.loadingAsync && !opts.isRemoved) {\n          scope.$$loadingAsyncDone = false;\n\n          $q.when(opts.loadingAsync)\n            .then(function() {\n              scope.$$loadingAsyncDone = true;\n              delete opts.loadingAsync;\n            }).then(function() {\n              $$rAF(positionAndFocusMenu);\n            });\n        }\n      }\n\n      function activateInteraction() {\n        if (opts.isRemoved) {\n          return;\n        }\n\n        var dropDown = opts.selectEl;\n        var selectMenuController = dropDown.controller('mdSelectMenu') || {};\n\n        element.addClass('md-clickable');\n\n        // Close on backdrop click\n        opts.backdrop && opts.backdrop.on('click', onBackdropClick);\n\n        // Escape to close\n        // Cycling of options, and closing on enter\n        dropDown.on('keydown', onMenuKeyDown);\n        dropDown.on('click', checkCloseMenu);\n\n        return function cleanupInteraction() {\n          opts.backdrop && opts.backdrop.off('click', onBackdropClick);\n          dropDown.off('keydown', onMenuKeyDown);\n          dropDown.off('click', checkCloseMenu);\n\n          element.removeClass('md-clickable');\n          opts.isRemoved = true;\n        };\n\n        // ************************************\n        // Closure Functions\n        // ************************************\n\n        function onBackdropClick(e) {\n          e.preventDefault();\n          e.stopPropagation();\n          opts.restoreFocus = false;\n          $mdUtil.nextTick($mdSelect.hide, true);\n        }\n\n        function onMenuKeyDown(ev) {\n          ev.preventDefault();\n          ev.stopPropagation();\n\n          switch (ev.keyCode) {\n            case keyCodes.UP_ARROW:\n              return focusPrevOption();\n            case keyCodes.DOWN_ARROW:\n              return focusNextOption();\n            case keyCodes.SPACE:\n            case keyCodes.ENTER:\n              if (opts.focusedNode) {\n                dropDown.triggerHandler({\n                  type: 'click',\n                  target: opts.focusedNode\n                });\n                ev.preventDefault();\n              }\n              checkCloseMenu(ev);\n              break;\n            case keyCodes.TAB:\n            case keyCodes.ESCAPE:\n              ev.stopPropagation();\n              ev.preventDefault();\n              opts.restoreFocus = true;\n              $mdUtil.nextTick($mdSelect.hide, true);\n              break;\n            default:\n              if (shouldHandleKey(ev, $mdConstant)) {\n                var optNode = selectMenuController.optNodeForKeyboardSearch(ev);\n                if (optNode && !optNode.hasAttribute('disabled')) {\n                  focusOptionNode(opts.focusedNode, optNode, selectMenuController);\n                }\n              }\n          }\n        }\n\n        /**\n         * Change the focus to another option. If there is no focused option, focus the first\n         * option. If there is a focused option, then use the direction to determine if we should\n         * focus the previous or next option in the list.\n         * @param {'next'|'prev'} direction\n         */\n        function focusOption(direction) {\n          var optionsArray = $mdUtil.nodesToArray(opts.optionNodes);\n          var index = optionsArray.indexOf(opts.focusedNode);\n          var prevOption = optionsArray[index];\n          var newOption;\n\n          do {\n            if (index === -1) {\n              // We lost the previously focused element, reset to first option\n              index = 0;\n            } else if (direction === 'next' && index < optionsArray.length - 1) {\n              index++;\n            } else if (direction === 'prev' && index > 0) {\n              index--;\n            }\n            newOption = optionsArray[index];\n            if (newOption.hasAttribute('disabled')) {\n              newOption = null;\n            }\n          } while (!newOption && index < optionsArray.length - 1 && index > 0);\n\n          focusOptionNode(prevOption, newOption, selectMenuController);\n        }\n\n        function focusNextOption() {\n          focusOption('next');\n        }\n\n        function focusPrevOption() {\n          focusOption('prev');\n        }\n\n        /**\n         * @param {KeyboardEvent|MouseEvent} event\n         */\n        function checkCloseMenu(event) {\n          if (event && (event.type === 'click') && (event.currentTarget !== dropDown[0])) {\n            return;\n          }\n          if (mouseOnScrollbar()) {\n            return;\n          }\n\n          if (opts.focusedNode && opts.focusedNode.hasAttribute &&\n              !opts.focusedNode.hasAttribute('disabled')) {\n            event.preventDefault();\n            event.stopPropagation();\n            if (!selectMenuController.isMultiple) {\n              opts.restoreFocus = true;\n\n              $mdUtil.nextTick(function () {\n                $mdSelect.hide(selectMenuController.ngModel.$viewValue);\n                opts.focusedNode.classList.remove('md-focused');\n              }, true);\n            }\n          }\n\n          /**\n           * check if the mouseup event was on a scrollbar\n           */\n          function mouseOnScrollbar() {\n            var clickOnScrollbar = false;\n            if (event && (event.currentTarget.children.length > 0)) {\n              var child = event.currentTarget.children[0];\n              var hasScrollbar = child.scrollHeight > child.clientHeight;\n              if (hasScrollbar && child.children.length > 0) {\n                var relPosX = event.pageX - event.currentTarget.getBoundingClientRect().left;\n                if (relPosX > child.querySelector('md-option').offsetWidth)\n                  clickOnScrollbar = true;\n              }\n            }\n            return clickOnScrollbar;\n          }\n        }\n      }\n    }\n\n    /**\n     * To notify listeners that the Select menu has closed,\n     * trigger the [optional] user-defined expression\n     */\n    function announceClosed(opts) {\n      var mdSelect = opts.selectCtrl;\n      if (mdSelect) {\n        var menuController = opts.selectEl.controller('mdSelectMenu');\n        mdSelect.setSelectValueText(menuController ? menuController.getSelectedLabels() : '');\n        mdSelect.triggerClose();\n      }\n    }\n\n\n    /**\n     * Calculate the menu positions after an event like options changing, screen resizing, or\n     * animations finishing.\n     * @param {Object} scope\n     * @param element\n     * @param opts\n     * @return {{container: {styles: {top: number, left: number, 'font-size': *, 'min-width': number}, element: Object}, dropDown: {styles: {transform: string, transformOrigin: string}, element: Object}}}\n     */\n    function calculateMenuPositions(scope, element, opts) {\n      var\n        containerNode = element[0],\n        targetNode = opts.target[0].children[0], // target the label\n        parentNode = $document[0].body,\n        selectNode = opts.selectEl[0],\n        contentNode = opts.contentEl[0],\n        parentRect = parentNode.getBoundingClientRect(),\n        targetRect = targetNode.getBoundingClientRect(),\n        shouldOpenAroundTarget = false,\n        bounds = {\n          left: parentRect.left + SELECT_EDGE_MARGIN,\n          top: SELECT_EDGE_MARGIN,\n          bottom: parentRect.height - SELECT_EDGE_MARGIN,\n          right: parentRect.width - SELECT_EDGE_MARGIN - ($mdUtil.floatingScrollbars() ? 16 : 0)\n        },\n        spaceAvailable = {\n          top: targetRect.top - bounds.top,\n          left: targetRect.left - bounds.left,\n          right: bounds.right - (targetRect.left + targetRect.width),\n          bottom: bounds.bottom - (targetRect.top + targetRect.height)\n        },\n        maxWidth = parentRect.width - SELECT_EDGE_MARGIN * 2,\n        selectedNode = selectNode.querySelector('md-option[selected]'),\n        optionNodes = selectNode.getElementsByTagName('md-option'),\n        optgroupNodes = selectNode.getElementsByTagName('md-optgroup'),\n        isScrollable = calculateScrollable(element, contentNode),\n        centeredNode;\n\n      var loading = isPromiseLike(opts.loadingAsync);\n      if (!loading) {\n        // If a selected node, center around that\n        if (selectedNode) {\n          centeredNode = selectedNode;\n          // If there are option groups, center around the first option group\n        } else if (optgroupNodes.length) {\n          centeredNode = optgroupNodes[0];\n          // Otherwise - if we are not loading async - center around the first optionNode\n        } else if (optionNodes.length) {\n          centeredNode = optionNodes[0];\n          // In case there are no options, center on whatever's in there... (eg progress indicator)\n        } else {\n          centeredNode = contentNode.firstElementChild || contentNode;\n        }\n      } else {\n        // If loading, center on progress indicator\n        centeredNode = contentNode.firstElementChild || contentNode;\n      }\n\n      if (contentNode.offsetWidth > maxWidth) {\n        contentNode.style['max-width'] = maxWidth + 'px';\n      } else {\n        contentNode.style.maxWidth = null;\n      }\n      if (shouldOpenAroundTarget) {\n        contentNode.style['min-width'] = targetRect.width + 'px';\n      }\n\n      // Remove padding before we compute the position of the menu\n      if (isScrollable) {\n        selectNode.classList.add('md-overflow');\n      }\n\n      var focusedNode = centeredNode;\n      if ((focusedNode.tagName || '').toUpperCase() === 'MD-OPTGROUP') {\n        focusedNode = optionNodes[0] || contentNode.firstElementChild || contentNode;\n        centeredNode = focusedNode;\n      }\n      // Cache for autoFocus()\n      opts.focusedNode = focusedNode;\n\n      // Get the selectMenuRect *after* max-width is possibly set above\n      containerNode.style.display = 'block';\n      var selectMenuRect = selectNode.getBoundingClientRect();\n      var centeredRect = getOffsetRect(centeredNode);\n\n      if (centeredNode) {\n        var centeredStyle = $window.getComputedStyle(centeredNode);\n        centeredRect.paddingLeft = parseInt(centeredStyle.paddingLeft, 10) || 0;\n        centeredRect.paddingRight = parseInt(centeredStyle.paddingRight, 10) || 0;\n      }\n\n      if (isScrollable) {\n        var scrollBuffer = contentNode.offsetHeight / 2;\n        contentNode.scrollTop = centeredRect.top + centeredRect.height / 2 - scrollBuffer;\n\n        if (spaceAvailable.top < scrollBuffer) {\n          contentNode.scrollTop = Math.min(\n            centeredRect.top,\n            contentNode.scrollTop + scrollBuffer - spaceAvailable.top\n          );\n        } else if (spaceAvailable.bottom < scrollBuffer) {\n          contentNode.scrollTop = Math.max(\n            centeredRect.top + centeredRect.height - selectMenuRect.height,\n            contentNode.scrollTop - scrollBuffer + spaceAvailable.bottom\n          );\n        }\n      }\n\n      var left, top, transformOrigin, minWidth, fontSize;\n      if (shouldOpenAroundTarget) {\n        left = targetRect.left;\n        top = targetRect.top + targetRect.height;\n        transformOrigin = '50% 0';\n        if (top + selectMenuRect.height > bounds.bottom) {\n          top = targetRect.top - selectMenuRect.height;\n          transformOrigin = '50% 100%';\n        }\n      } else {\n        left = (targetRect.left + centeredRect.left - centeredRect.paddingLeft);\n        top = Math.floor(targetRect.top + targetRect.height / 2 - centeredRect.height / 2 -\n            centeredRect.top + contentNode.scrollTop) + 2;\n\n        transformOrigin = (centeredRect.left + targetRect.width / 2) + 'px ' +\n          (centeredRect.top + centeredRect.height / 2 - contentNode.scrollTop) + 'px 0px';\n\n        minWidth = Math.min(targetRect.width + centeredRect.paddingLeft + centeredRect.paddingRight, maxWidth);\n\n        fontSize = window.getComputedStyle(targetNode)['font-size'];\n      }\n\n      // Keep left and top within the window\n      var containerRect = containerNode.getBoundingClientRect();\n      var scaleX = Math.round(100 * Math.min(targetRect.width / selectMenuRect.width, 1.0)) / 100;\n      var scaleY = Math.round(100 * Math.min(targetRect.height / selectMenuRect.height, 1.0)) / 100;\n\n      return {\n        container: {\n          element: angular.element(containerNode),\n          styles: {\n            left: Math.floor(clamp(bounds.left, left, bounds.right - minWidth)),\n            top: Math.floor(clamp(bounds.top, top, bounds.bottom - containerRect.height)),\n            'min-width': minWidth,\n            'font-size': fontSize\n          }\n        },\n        dropDown: {\n          element: angular.element(selectNode),\n          styles: {\n            transformOrigin: transformOrigin,\n            transform: !opts.alreadyOpen ? $mdUtil.supplant('scale({0},{1})', [scaleX, scaleY]) : \"\"\n          }\n        }\n      };\n    }\n  }\n\n  function isPromiseLike(obj) {\n    return obj && angular.isFunction(obj.then);\n  }\n\n  function clamp(min, n, max) {\n    return Math.max(min, Math.min(n, max));\n  }\n\n  function getOffsetRect(node) {\n    return node ? {\n      left: node.offsetLeft,\n      top: node.offsetTop,\n      width: node.offsetWidth,\n      height: node.offsetHeight\n    } : {left: 0, top: 0, width: 0, height: 0};\n  }\n\n  function calculateScrollable(element, contentNode) {\n    var isScrollable = false;\n\n    try {\n      var oldDisplay = element[0].style.display;\n\n      // Set the element's display to block so that this calculation is correct\n      element[0].style.display = 'block';\n\n      isScrollable = contentNode.scrollHeight > contentNode.offsetHeight;\n\n      // Reset it back afterwards\n      element[0].style.display = oldDisplay;\n    } finally {\n      // Nothing to do\n    }\n    return isScrollable;\n  }\n}\n\nfunction shouldHandleKey(ev, $mdConstant) {\n  var char = String.fromCharCode(ev.keyCode);\n  var isNonUsefulKey = (ev.keyCode <= 31);\n\n  return (char && char.length && !isNonUsefulKey &&\n    !$mdConstant.isMetaKey(ev) && !$mdConstant.isFnLockKey(ev) && !$mdConstant.hasModifierKey(ev));\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.showHide\n */\n\n// Add additional handlers to ng-show and ng-hide that notify directives\n// contained within that they should recompute their size.\n// These run in addition to AngularJS's built-in ng-hide and ng-show directives.\nangular.module('material.components.showHide', [\n  'material.core'\n])\n  .directive('ngShow', createDirective('ngShow', true))\n  .directive('ngHide', createDirective('ngHide', false));\n\n\nfunction createDirective(name, targetValue) {\n  return ['$mdUtil', '$window', function($mdUtil, $window) {\n    return {\n      restrict: 'A',\n      multiElement: true,\n      link: function($scope, $element, $attr) {\n        var unregister = $scope.$on('$md-resize-enable', function() {\n          unregister();\n\n          var node = $element[0];\n          var cachedTransitionStyles = node.nodeType === $window.Node.ELEMENT_NODE ?\n            $window.getComputedStyle(node) : {};\n\n          $scope.$watch($attr[name], function(value) {\n            if (!!value === targetValue) {\n              $mdUtil.nextTick(function() {\n                $scope.$broadcast('$md-resize');\n              });\n\n              var opts = {\n                cachedTransitionStyles: cachedTransitionStyles\n              };\n\n              $mdUtil.dom.animator.waitTransitionEnd($element, opts).then(function() {\n                $scope.$broadcast('$md-resize');\n              });\n            }\n          });\n        });\n      }\n    };\n  }];\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.sidenav\n *\n * @description\n * A Sidenav component.\n */\nSidenavService.$inject = [\"$mdComponentRegistry\", \"$mdUtil\", \"$q\", \"$log\"];\nSidenavDirective.$inject = [\"$mdMedia\", \"$mdUtil\", \"$mdConstant\", \"$mdTheming\", \"$mdInteraction\", \"$animate\", \"$compile\", \"$parse\", \"$log\", \"$q\", \"$document\", \"$window\", \"$$rAF\"];\nSidenavController.$inject = [\"$scope\", \"$attrs\", \"$mdComponentRegistry\", \"$q\", \"$interpolate\"];\nangular\n  .module('material.components.sidenav', [\n    'material.core',\n    'material.components.backdrop'\n  ])\n  .factory('$mdSidenav', SidenavService)\n  .directive('mdSidenav', SidenavDirective)\n  .controller('$mdSidenavController', SidenavController);\n\n\n/**\n * @ngdoc service\n * @name $mdSidenav\n * @module material.components.sidenav\n *\n * @description\n * `$mdSidenav` makes it easy to interact with multiple sidenavs in an app. When looking up a\n * sidenav instance, you can either look it up synchronously or wait for it to be initialized\n * asynchronously. This is done by passing the second argument to `$mdSidenav`.\n *\n * @usage\n * <hljs lang=\"js\">\n * // Async lookup for sidenav instance; will resolve when the instance is available\n * $mdSidenav(componentId, true).then(function(instance) {\n *   $log.debug( componentId + \"is now ready\" );\n * });\n * // Sync lookup for sidenav instance; this will resolve immediately.\n * $mdSidenav(componentId).then(function(instance) {\n *   $log.debug( componentId + \"is now ready\" );\n * });\n * // Async toggle the given sidenav;\n * // when instance is known ready and lazy lookup is not needed.\n * $mdSidenav(componentId)\n *    .toggle()\n *    .then(function(){\n *      $log.debug('toggled');\n *    });\n * // Async open the given sidenav\n * $mdSidenav(componentId)\n *    .open()\n *    .then(function(){\n *      $log.debug('opened');\n *    });\n * // Async close the given sidenav\n * $mdSidenav(componentId)\n *    .close()\n *    .then(function(){\n *      $log.debug('closed');\n *    });\n * // Async lookup for sidenav instance\n * $mdSidenav(componentId, true).then(function(instance) {\n *   // On close callback to handle close, backdrop click, or escape key pressed.\n *   // Callback happens BEFORE the close action occurs.\n *   instance.onClose(function() {\n *     $log.debug('closing');\n *   });\n * });\n * // Sync check to see if the specified sidenav is set to be open\n * $mdSidenav(componentId).isOpen();\n * // Sync check to whether given sidenav is locked open\n * // If this is true, the sidenav will be open regardless of close()\n * $mdSidenav(componentId).isLockedOpen();\n * </hljs>\n */\nfunction SidenavService($mdComponentRegistry, $mdUtil, $q, $log) {\n  var errorMsg = \"SideNav '{0}' is not available! Did you use md-component-id='{0}'?\";\n  var service = {\n    find: findInstance,      //  sync  - returns proxy API\n    waitFor: waitForInstance //  async - returns promise\n  };\n\n  /**\n   * Service API that supports three (3) usages:\n   * $mdSidenav().find(\"left\")               // sync (must already exist) or returns undefined\n   * $mdSidenav(\"left\").toggle();            // sync (must already exist) or returns reject promise;\n   * $mdSidenav(\"left\",true).then(function(left) { // async returns instance when available\n   *  left.toggle();\n   * });\n   */\n  return function(handle, enableWait) {\n    if (angular.isUndefined(handle)) {\n      return service;\n    }\n\n    var shouldWait = enableWait === true;\n    var instance = service.find(handle, shouldWait);\n    return !instance && shouldWait ? service.waitFor(handle) :\n           !instance && angular.isUndefined(enableWait) ? addLegacyAPI(service, handle) : instance;\n  };\n\n  /**\n   * For failed instance/handle lookups, older-clients expect an response object with noops\n   * that include `rejected promise APIs`\n   * @param service\n   * @param handle\n   * @returns {Object}\n   */\n  function addLegacyAPI(service, handle) {\n    var falseFn = function() {\n      return false;\n    };\n    var rejectFn = function() {\n      return $q.when($mdUtil.supplant(errorMsg, [handle || \"\"]));\n    };\n\n    return angular.extend({\n      isLockedOpen: falseFn,\n      isOpen: falseFn,\n      toggle: rejectFn,\n      open: rejectFn,\n      close: rejectFn,\n      onClose: angular.noop,\n      then: function(callback) {\n        return waitForInstance(handle).then(callback || angular.noop);\n      }\n    }, service);\n  }\n\n  /**\n   * Synchronously lookup the controller instance for the specified sidNav instance which has been\n   * registered with the markup `md-component-id`\n   */\n  function findInstance(handle, shouldWait) {\n    var instance = $mdComponentRegistry.get(handle);\n\n    if (!instance && !shouldWait) {\n      // Report missing instance\n      $log.error($mdUtil.supplant(errorMsg, [handle || \"\"]));\n\n      // The component has not registered itself... most like NOT yet created\n      // return null to indicate that the Sidenav is not in the DOM\n      return undefined;\n    }\n    return instance;\n  }\n\n  /**\n   * Asynchronously wait for the component instantiation,\n   * Deferred lookup of component instance using $component registry\n   */\n  function waitForInstance(handle) {\n    return $mdComponentRegistry.when(handle).catch($log.error);\n  }\n}\n\n/**\n * @ngdoc directive\n * @name mdSidenav\n * @module material.components.sidenav\n * @restrict E\n *\n * @description\n * A Sidenav component that can be opened and closed programmatically.\n *\n * By default, upon opening it will slide out on top of the main content area.\n *\n * For keyboard and screen reader accessibility, focus is sent to the sidenav wrapper by default.\n * It can be overridden with the `md-autofocus` directive on the child element you want focused.\n *\n * @usage\n * <hljs lang=\"html\">\n * <div layout=\"row\" ng-controller=\"MyController\">\n *   <md-sidenav md-component-id=\"left\" class=\"md-sidenav-left\">\n *     Left Nav!\n *   </md-sidenav>\n *\n *   <md-content>\n *     Center Content\n *     <md-button ng-click=\"openLeftMenu()\">\n *       Open Left Menu\n *     </md-button>\n *   </md-content>\n *\n *   <md-sidenav md-component-id=\"right\"\n *     md-is-locked-open=\"$mdMedia('min-width: 333px')\"\n *     class=\"md-sidenav-right\">\n *     <form>\n *       <md-input-container>\n *         <label for=\"testInput\">Test input</label>\n *         <input id=\"testInput\" type=\"text\"\n *                ng-model=\"data\" md-autofocus>\n *       </md-input-container>\n *     </form>\n *   </md-sidenav>\n * </div>\n * </hljs>\n *\n * <hljs lang=\"js\">\n * var app = angular.module('myApp', ['ngMaterial']);\n * app.controller('MyController', function($scope, $mdSidenav) {\n *   $scope.openLeftMenu = function() {\n *     $mdSidenav('left').toggle();\n *   };\n * });\n * </hljs>\n *\n * @param {expression=} md-is-open A model bound to whether the sidenav is opened.\n * @param {boolean=} md-disable-backdrop When present in the markup, the sidenav will not show a\n *  backdrop.\n * @param {boolean=} md-disable-close-events When present in the markup, clicking the backdrop or\n *  pressing the 'Escape' key will not close the sidenav.\n * @param {string=} md-component-id componentId to use with $mdSidenav service.\n * @param {expression=} md-is-locked-open When this expression evaluates to true,\n * the sidenav \"locks open\": it falls into the content's flow instead of appearing over it. This\n * overrides the `md-is-open` attribute.\n *\n * The `$mdMedia()` service is exposed to the `md-is-locked-open` attribute, which\n * can be given a media query or one of the `sm`, `gt-sm`, `md`, `gt-md`, `lg` or `gt-lg` presets.\n * <br><br>Examples:\n *\n *   Lock open when `true`:<br>\n *   `<md-sidenav md-is-locked-open=\"shouldLockOpen\"></md-sidenav>`\n *\n *   Lock open when the width is `1000px` or greater:<br>\n *   `<md-sidenav md-is-locked-open=\"$mdMedia('min-width: 1000px')\"></md-sidenav>`\n *\n *   Lock open on small screens:<br>\n *   `<md-sidenav md-is-locked-open=\"$mdMedia('sm')\"></md-sidenav>`\n *\n * @param {string=} md-disable-scroll-target Selector, pointing to an element, whose scrolling will\n * be disabled when the sidenav is opened. By default this is the sidenav's direct parent.\n */\nfunction SidenavDirective($mdMedia, $mdUtil, $mdConstant, $mdTheming, $mdInteraction, $animate,\n                          $compile, $parse, $log, $q, $document, $window, $$rAF) {\n  return {\n    restrict: 'E',\n    scope: {\n      isOpen: '=?mdIsOpen'\n    },\n    controller: '$mdSidenavController',\n    compile: function(element) {\n      element.addClass('md-closed').attr('tabIndex', '-1');\n      return postLink;\n    }\n  };\n\n  /**\n   * Directive Post Link function...\n   */\n  function postLink(scope, element, attr, sidenavCtrl) {\n    var lastParentOverFlow;\n    var backdrop;\n    var disableScrollTarget = null;\n    var disableCloseEvents;\n    var triggeringInteractionType;\n    var triggeringElement = null;\n    var previousContainerStyles;\n    var promise = $q.when(true);\n    var isLockedOpenParsed = $parse(attr.mdIsLockedOpen);\n    var ngWindow = angular.element($window);\n    var isLocked = function() {\n      return isLockedOpenParsed(scope.$parent, {\n        $mdMedia: $mdMedia\n      });\n    };\n\n    if (attr.mdDisableScrollTarget) {\n      disableScrollTarget = $document[0].querySelector(attr.mdDisableScrollTarget);\n\n      if (disableScrollTarget) {\n        disableScrollTarget = angular.element(disableScrollTarget);\n      } else {\n        $log.warn($mdUtil.supplant('mdSidenav: couldn\\'t find element matching ' +\n          'selector \"{selector}\". Falling back to parent.',\n          { selector: attr.mdDisableScrollTarget }));\n      }\n    }\n\n    if (!disableScrollTarget) {\n      disableScrollTarget = element.parent();\n    }\n\n    // Only create the backdrop if the backdrop isn't disabled.\n    if (!attr.hasOwnProperty('mdDisableBackdrop')) {\n      backdrop = $mdUtil.createBackdrop(scope, \"md-sidenav-backdrop md-opaque ng-enter\");\n    }\n\n    // If md-disable-close-events is set on the sidenav we will disable\n    // backdrop click and Escape key events\n    if (attr.hasOwnProperty('mdDisableCloseEvents')) {\n      disableCloseEvents = true;\n    }\n\n    element.addClass('_md');     // private md component indicator for styling\n    $mdTheming(element);\n\n    // The backdrop should inherit the sidenavs theme,\n    // because the backdrop will take its parent theme by default.\n    if (backdrop) $mdTheming.inherit(backdrop, element);\n\n    element.on('$destroy', function() {\n      backdrop && backdrop.remove();\n      sidenavCtrl.destroy();\n    });\n\n    scope.$on('$destroy', function(){\n      backdrop && backdrop.remove();\n    });\n\n    scope.$watch(isLocked, updateIsLocked);\n    scope.$watch('isOpen', updateIsOpen);\n\n\n    // Publish special accessor for the Controller instance\n    sidenavCtrl.$toggleOpen = toggleOpen;\n\n    /**\n     * Toggle the DOM classes to indicate `locked`\n     * @param isLocked\n     * @param oldValue\n     */\n    function updateIsLocked(isLocked, oldValue) {\n      scope.isLockedOpen = isLocked;\n      if (isLocked === oldValue) {\n        element.toggleClass('md-locked-open', !!isLocked);\n      } else {\n        $animate[isLocked ? 'addClass' : 'removeClass'](element, 'md-locked-open');\n      }\n      if (backdrop) {\n        backdrop.toggleClass('md-locked-open', !!isLocked);\n      }\n    }\n\n    /**\n     * Toggle the SideNav view and attach/detach listeners\n     * @param {boolean} isOpen\n     */\n    function updateIsOpen(isOpen) {\n      var focusEl = $mdUtil.findFocusTarget(element) || element;\n      var parent = element.parent();\n      var restorePositioning;\n\n      // If the user hasn't set the disable close events property we are adding\n      // click and escape events to close the sidenav\n      if (!disableCloseEvents) {\n        parent[isOpen ? 'on' : 'off']('keydown', onKeyDown);\n        if (backdrop) backdrop[isOpen ? 'on' : 'off']('click', close);\n      }\n\n      restorePositioning = updateContainerPositions(parent, isOpen);\n\n      if (isOpen) {\n        // Capture upon opening..\n        triggeringElement = $document[0].activeElement;\n        triggeringInteractionType = $mdInteraction.getLastInteractionType();\n      }\n\n      disableParentScroll(isOpen);\n\n      return promise = $q.all([\n        isOpen && backdrop ? $animate.enter(backdrop, parent) : backdrop ?\n                             $animate.leave(backdrop) : $q.when(true),\n        $animate[isOpen ? 'removeClass' : 'addClass'](element, 'md-closed')\n      ]).then(function() {\n        // Perform focus when animations are ALL done...\n        if (scope.isOpen) {\n          $$rAF(function() {\n            // Notifies child components that the sidenav was opened. Should wait\n            // a frame in order to allow for the element height to be computed.\n            ngWindow.triggerHandler('resize');\n          });\n\n          focusEl && focusEl.focus();\n        }\n\n        // Restores the positioning on the sidenav and backdrop.\n        restorePositioning && restorePositioning();\n      });\n    }\n\n    function updateContainerPositions(parent, willOpen) {\n      var drawerEl = element[0];\n      var scrollTop = parent[0].scrollTop;\n\n      if (willOpen && scrollTop) {\n        previousContainerStyles = {\n          top: drawerEl.style.top,\n          bottom: drawerEl.style.bottom,\n          height: drawerEl.style.height\n        };\n\n        // When the parent is scrolled down, then we want to be able to show the sidenav at the\n        // current scroll position. We're moving the sidenav down to the correct scroll position\n        // and apply the height of the parent, to increase the performance. Using 100% as height,\n        // will impact the performance heavily.\n        var positionStyle = {\n          top: scrollTop + 'px',\n          bottom: 'auto',\n          height: parent[0].clientHeight + 'px'\n        };\n\n        // Apply the new position styles to the sidenav and backdrop.\n        element.css(positionStyle);\n        backdrop.css(positionStyle);\n      }\n\n      // When the sidenav is closing and we have previous defined container styles,\n      // then we return a restore function, which resets the sidenav and backdrop.\n      if (!willOpen && previousContainerStyles) {\n        return function() {\n          drawerEl.style.top = previousContainerStyles.top;\n          drawerEl.style.bottom = previousContainerStyles.bottom;\n          drawerEl.style.height = previousContainerStyles.height;\n\n          backdrop[0].style.top = null;\n          backdrop[0].style.bottom = null;\n          backdrop[0].style.height = null;\n\n          previousContainerStyles = null;\n        };\n      }\n    }\n\n    /**\n     * Prevent parent scrolling (when the SideNav is open)\n     */\n    function disableParentScroll(disabled) {\n      if (disabled && !lastParentOverFlow) {\n        lastParentOverFlow = disableScrollTarget.css('overflow');\n        disableScrollTarget.css('overflow', 'hidden');\n      } else if (angular.isDefined(lastParentOverFlow)) {\n        disableScrollTarget.css('overflow', lastParentOverFlow);\n        lastParentOverFlow = undefined;\n      }\n    }\n\n    /**\n     * Toggle the sideNav view and publish a promise to be resolved when\n     * the view animation finishes.\n     * @param {boolean} isOpen true to open the sidenav, false to close it\n     * @returns {*} promise to be resolved when the view animation finishes\n     */\n    function toggleOpen(isOpen) {\n      if (scope.isOpen === isOpen) {\n        return $q.when(true);\n      } else {\n        if (scope.isOpen && sidenavCtrl.onCloseCb) sidenavCtrl.onCloseCb();\n\n        return $q(function(resolve) {\n          // Toggle value to force an async `updateIsOpen()` to run\n          scope.isOpen = isOpen;\n\n          $mdUtil.nextTick(function() {\n            // When the current `updateIsOpen()` animation finishes\n            promise.then(function(result) {\n\n              if (!scope.isOpen && triggeringElement && triggeringInteractionType === 'keyboard') {\n                // reset focus to originating element (if available) upon close\n                triggeringElement.focus();\n                triggeringElement = null;\n              }\n\n              resolve(result);\n            });\n          });\n        });\n      }\n    }\n\n    /**\n     * Auto-close sideNav when the `escape` key is pressed.\n     * @param {KeyboardEvent} ev keydown event\n     */\n    function onKeyDown(ev) {\n      var isEscape = (ev.keyCode === $mdConstant.KEY_CODE.ESCAPE);\n      return isEscape ? close(ev) : $q.when(true);\n    }\n\n    /**\n     * With backdrop `clicks` or `escape` key-press, immediately apply the CSS close transition...\n     * Then notify the controller to close() and perform its own actions.\n     * @param {Event} ev\n     * @returns {*}\n     */\n    function close(ev) {\n      ev.preventDefault();\n\n      return sidenavCtrl.close();\n    }\n  }\n}\n\n/*\n * @private\n * @ngdoc controller\n * @name SidenavController\n * @module material.components.sidenav\n */\nfunction SidenavController($scope, $attrs, $mdComponentRegistry, $q, $interpolate) {\n  var self = this;\n\n  // Use Default internal method until overridden by directive postLink\n\n  // Synchronous getters\n  self.isOpen = function() { return !!$scope.isOpen; };\n  self.isLockedOpen = function() { return !!$scope.isLockedOpen; };\n\n  // Synchronous setters\n  self.onClose = function (callback) {\n    self.onCloseCb = callback;\n    return self;\n  };\n\n  // Async actions\n  self.open   = function() { return self.$toggleOpen(true);  };\n  self.close  = function() { return self.$toggleOpen(false); };\n  self.toggle = function() { return self.$toggleOpen(!$scope.isOpen);  };\n  self.$toggleOpen = function(value) { return $q.when($scope.isOpen = value); };\n\n  // Evaluate the component id.\n  var rawId = $attrs.mdComponentId;\n  var hasDataBinding = rawId && rawId.indexOf($interpolate.startSymbol()) > -1;\n  var componentId = hasDataBinding ? $interpolate(rawId)($scope.$parent) : rawId;\n\n  // Register the component.\n  self.destroy = $mdComponentRegistry.register(self, componentId);\n\n  // Watch and update the component, if the id has changed.\n  if (hasDataBinding) {\n    $attrs.$observe('mdComponentId', function(id) {\n      if (id && id !== self.$$mdHandle) {\n        // `destroy` only deregisters the old component id so we can add the new one.\n        self.destroy();\n        self.destroy = $mdComponentRegistry.register(self, id);\n      }\n    });\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.slider\n */\nSliderDirective.$inject = [\"$$rAF\", \"$window\", \"$mdAria\", \"$mdUtil\", \"$mdConstant\", \"$mdTheming\", \"$mdGesture\", \"$parse\", \"$log\", \"$timeout\"];\nangular.module('material.components.slider', [\n  'material.core'\n])\n.directive('mdSlider', SliderDirective)\n.directive('mdSliderContainer', SliderContainerDirective);\n\n/**\n * @type {number} the page size used for stepping when page up/down keys are pressed.\n */\nvar stepPageSize = 10;\n/**\n * @type {number} the multiplier applied to a step when the arrow key is pressed along with\n *  alt, meta, or ctrl.\n */\nvar modifierMultiplier = 4;\n\n/**\n * @ngdoc directive\n * @name mdSliderContainer\n * @module material.components.slider\n * @restrict E\n * @description\n * The `<md-slider-container>` can hold the slider with two other elements.\n * In this case, the other elements are a `span` for the label and an `input` for displaying\n * the model value.\n *\n * @usage\n * <hljs lang=\"html\">\n *  <md-slider-container>\n *    <span>Red</span>\n *    <md-slider min=\"0\" max=\"255\" ng-model=\"color.red\" aria-label=\"red\" id=\"red-slider\">\n *    </md-slider>\n *    <md-input-container>\n *      <input type=\"number\" ng-model=\"color.red\" aria-label=\"Red\" aria-controls=\"red-slider\">\n *    </md-input-container>\n *  </md-slider-container>\n * </hljs>\n */\nfunction SliderContainerDirective() {\n  return {\n    controller: function () {},\n    compile: function (elem) {\n      var slider = elem.find('md-slider');\n\n      if (!slider) {\n        return;\n      }\n\n      var vertical = slider.attr('md-vertical');\n\n      if (vertical !== undefined) {\n        elem.attr('md-vertical', '');\n      }\n\n      if (!slider.attr('flex')) {\n        slider.attr('flex', '');\n      }\n\n      return function postLink(scope, element, attr, ctrl) {\n        element.addClass('_md');     // private md component indicator for styling\n\n        // We have to manually stop the $watch on ngDisabled because it exists\n        // on the parent scope, and won't be automatically destroyed when\n        // the component is destroyed.\n        function setDisable(value) {\n          element.children().attr('disabled', value);\n          element.find('input').attr('disabled', value);\n        }\n\n        var stopDisabledWatch = angular.noop;\n\n        if (attr.disabled) {\n          setDisable(true);\n        }\n        else if (attr.ngDisabled) {\n          stopDisabledWatch = scope.$watch(attr.ngDisabled, function (value) {\n            setDisable(value);\n          });\n        }\n\n        scope.$on('$destroy', function () {\n          stopDisabledWatch();\n        });\n\n        var initialMaxWidth;\n\n        /**\n         * @param {number} length of the input's string value\n         */\n        ctrl.fitInputWidthToTextLength = function (length) {\n          var input = element[0].querySelector('md-input-container');\n\n          if (input) {\n            var computedStyle = getComputedStyle(input);\n            var minWidth = parseInt(computedStyle.minWidth);\n            var padding = parseInt(computedStyle.paddingLeft) + parseInt(computedStyle.paddingRight);\n\n            initialMaxWidth = initialMaxWidth || parseInt(computedStyle.maxWidth);\n            var newMaxWidth = Math.max(initialMaxWidth, minWidth + padding + (minWidth / 2 * length));\n\n            input.style.maxWidth = newMaxWidth + 'px';\n          }\n        };\n      };\n    }\n  };\n}\n\n/**\n * @ngdoc directive\n * @name mdSlider\n * @module material.components.slider\n * @restrict E\n * @description\n * The `<md-slider>` component allows the user to choose from a range of values.\n *\n * As per the [Material Design spec](https://material.io/archive/guidelines/style/color.html#color-color-system)\n * the slider is in the accent color by default. The primary color palette may be used with\n * the `md-primary` class.\n *\n * The slider has two modes:\n * - \"normal\" mode where the user slides between a wide range of values\n * - \"discrete\" mode where the user slides between only a few select values\n *\n * To enable discrete mode, add the `md-discrete` attribute to a slider\n * and use the `step` attribute to change the distance between\n * values the user is allowed to pick.\n *\n * When using the keyboard:\n * - pressing the arrow keys will increase or decrease the slider's value by one step\n * - holding the Meta, Control, or Alt key while pressing the arrow keys will\n *   move the slider four steps at a time\n * - pressing the Home key will move the slider to the first allowed value\n * - pressing the End key will move the slider to the last allowed value\n * - pressing the Page Up key will increase the slider value by ten\n * - pressing the Page Down key will decrease the slider value by ten\n *\n * @usage\n * <h4>Normal Mode</h4>\n * <hljs lang=\"html\">\n * <md-slider ng-model=\"myValue\" min=\"5\" max=\"500\">\n * </md-slider>\n * </hljs>\n * <h4>Discrete Mode</h4>\n * <hljs lang=\"html\">\n * <md-slider md-discrete ng-model=\"myDiscreteValue\" step=\"10\" min=\"10\" max=\"130\">\n * </md-slider>\n * </hljs>\n * <h4>Invert Mode</h4>\n * <hljs lang=\"html\">\n * <md-slider md-invert ng-model=\"myValue\" step=\"10\" min=\"10\" max=\"130\">\n * </md-slider>\n * </hljs>\n *\n * @param {expression} ng-model Assignable angular expression to be data-bound.\n *  The expression should evaluate to a `number`.\n * @param {expression=} ng-disabled If this expression evaluates as truthy, the slider will be\n *  disabled.\n * @param {expression=} ng-readonly If this expression evaluates as truthy, the slider will be in\n *  read only mode.\n * @param {boolean=} md-discrete If this attribute exists during initialization, enable discrete\n *  mode. Defaults to `false`.\n * @param {boolean=} md-vertical If this attribute exists during initialization, enable vertical\n *  orientation mode. Defaults to `false`.\n * @param {boolean=} md-invert If this attribute exists during initialization, enable inverted mode.\n *  Defaults to `false`.\n * @param {number=} step The distance between values the user is allowed to pick. Defaults to `1`.\n * @param {number=} min The minimum value the user is allowed to pick. Defaults to `0`.\n * @param {number=} max The maximum value the user is allowed to pick. Defaults to `100`.\n * @param {number=} round The amount of numbers after the decimal point. The maximum is 6 to\n *  prevent scientific notation. Defaults to `3`.\n */\nfunction SliderDirective($$rAF, $window, $mdAria, $mdUtil, $mdConstant, $mdTheming, $mdGesture,\n                         $parse, $log, $timeout) {\n  return {\n    scope: {},\n    require: ['?ngModel', '?^mdSliderContainer'],\n    template:\n      '<div class=\"md-slider-wrapper\">' +\n        '<div class=\"md-slider-content\">' +\n          '<div class=\"md-track-container\">' +\n            '<div class=\"md-track\"></div>' +\n            '<div class=\"md-track md-track-fill\"></div>' +\n            '<div class=\"md-track-ticks\"></div>' +\n          '</div>' +\n          '<div class=\"md-thumb-container\">' +\n            '<div class=\"md-thumb\"></div>' +\n            '<div class=\"md-focus-thumb\"></div>' +\n            '<div class=\"md-focus-ring\"></div>' +\n            '<div class=\"md-sign\">' +\n              '<span class=\"md-thumb-text\"></span>' +\n            '</div>' +\n            '<div class=\"md-disabled-thumb\"></div>' +\n          '</div>' +\n        '</div>' +\n      '</div>',\n    compile: compile\n  };\n\n  // **********************************************************\n  // Private Methods\n  // **********************************************************\n\n  function compile (tElement, tAttrs) {\n    var wrapper = angular.element(tElement[0].getElementsByClassName('md-slider-wrapper'));\n\n    var tabIndex = tAttrs.tabindex || 0;\n    wrapper.attr('tabindex', tabIndex);\n\n    if (tAttrs.disabled || tAttrs.ngDisabled) wrapper.attr('tabindex', -1);\n\n    wrapper.attr('role', 'slider');\n\n    $mdAria.expect(tElement, 'aria-label');\n\n    return postLink;\n  }\n\n  function postLink(scope, element, attr, ctrls) {\n    $mdTheming(element);\n    var ngModelCtrl = ctrls[0] || {\n      // Mock ngModelController if it doesn't exist to give us\n      // the minimum functionality needed\n      $setViewValue: function(val) {\n        this.$viewValue = val;\n        this.$viewChangeListeners.forEach(function(cb) { cb(); });\n      },\n      $parsers: [],\n      $formatters: [],\n      $viewChangeListeners: []\n    };\n\n    var containerCtrl = ctrls[1];\n    var container = angular.element($mdUtil.getClosest(element, '_md-slider-container', true));\n    var isDisabled = attr.ngDisabled ? angular.bind(null, $parse(attr.ngDisabled), scope.$parent) : function () {\n          return element[0].hasAttribute('disabled');\n        };\n\n    var thumb = angular.element(element[0].querySelector('.md-thumb'));\n    var thumbText = angular.element(element[0].querySelector('.md-thumb-text'));\n    var thumbContainer = thumb.parent();\n    var trackContainer = angular.element(element[0].querySelector('.md-track-container'));\n    var activeTrack = angular.element(element[0].querySelector('.md-track-fill'));\n    var tickContainer = angular.element(element[0].querySelector('.md-track-ticks'));\n    var wrapper = angular.element(element[0].getElementsByClassName('md-slider-wrapper'));\n    var content = angular.element(element[0].getElementsByClassName('md-slider-content'));\n    var throttledRefreshDimensions = $mdUtil.throttle(refreshSliderDimensions, 5000);\n\n    // Default values, overridable by attrs\n    var DEFAULT_ROUND = 3;\n    var vertical = angular.isDefined(attr.mdVertical);\n    var discrete = angular.isDefined(attr.mdDiscrete);\n    var invert = angular.isDefined(attr.mdInvert);\n    angular.isDefined(attr.min) ? attr.$observe('min', updateMin) : updateMin(0);\n    angular.isDefined(attr.max) ? attr.$observe('max', updateMax) : updateMax(100);\n    angular.isDefined(attr.step)? attr.$observe('step', updateStep) : updateStep(1);\n    angular.isDefined(attr.round)? attr.$observe('round', updateRound) : updateRound(DEFAULT_ROUND);\n\n    // We have to manually stop the $watch on ngDisabled because it exists\n    // on the parent scope, and won't be automatically destroyed when\n    // the component is destroyed.\n    var stopDisabledWatch = angular.noop;\n    if (attr.ngDisabled) {\n      stopDisabledWatch = scope.$parent.$watch(attr.ngDisabled, updateAriaDisabled);\n    }\n\n    $mdGesture.register(wrapper, 'drag', { horizontal: !vertical });\n\n    scope.mouseActive = false;\n\n    wrapper\n      .on('keydown', keydownListener)\n      .on('mousedown', mouseDownListener)\n      .on('focus', focusListener)\n      .on('blur', blurListener)\n      .on('$md.pressdown', onPressDown)\n      .on('$md.pressup', onPressUp)\n      .on('$md.dragstart', onDragStart)\n      .on('$md.drag', onDrag)\n      .on('$md.dragend', onDragEnd);\n\n    // On resize, recalculate the slider's dimensions and re-render\n    function updateAll() {\n      refreshSliderDimensions();\n      ngModelRender();\n    }\n    setTimeout(updateAll, 0);\n\n    var debouncedUpdateAll = $$rAF.throttle(updateAll);\n    angular.element($window).on('resize', debouncedUpdateAll);\n\n    scope.$on('$destroy', function() {\n      angular.element($window).off('resize', debouncedUpdateAll);\n    });\n\n    ngModelCtrl.$render = ngModelRender;\n    ngModelCtrl.$viewChangeListeners.push(ngModelRender);\n    ngModelCtrl.$formatters.push(minMaxValidator);\n    ngModelCtrl.$formatters.push(stepValidator);\n\n    /**\n     * Attributes\n     */\n    var min;\n    var max;\n    var step;\n    var round;\n    function updateMin(value) {\n      min = parseFloat(value);\n      ngModelCtrl.$viewValue = minMaxValidator(ngModelCtrl.$modelValue, min, max);\n      wrapper.attr('aria-valuemin', value);\n      updateAll();\n    }\n    function updateMax(value) {\n      max = parseFloat(value);\n      ngModelCtrl.$viewValue = minMaxValidator(ngModelCtrl.$modelValue, min, max);\n      wrapper.attr('aria-valuemax', value);\n      updateAll();\n    }\n    function updateStep(value) {\n      step = parseFloat(value);\n    }\n    function updateRound(value) {\n      // Set max round digits to 6, after 6 the input uses scientific notation\n      round = minMaxValidator(parseInt(value), 0, 6);\n    }\n    function updateAriaDisabled() {\n      element.attr('aria-disabled', !!isDisabled());\n    }\n\n    // Draw the ticks with canvas.\n    // The alternative to drawing ticks with canvas is to draw one element for each tick,\n    // which could quickly become a performance bottleneck.\n    var tickCanvas, tickCtx;\n    function redrawTicks() {\n      if (!discrete || isDisabled()) return;\n      if (angular.isUndefined(step))         return;\n\n      if (step <= 0) {\n        var msg = 'Slider step value must be greater than zero when in discrete mode';\n        $log.error(msg);\n        throw new Error(msg);\n      }\n\n      var numSteps = Math.floor((max - min) / step);\n      if (!tickCanvas) {\n        tickCanvas = angular.element('<canvas>').css('position', 'absolute');\n        tickContainer.append(tickCanvas);\n\n        tickCtx = tickCanvas[0].getContext('2d');\n      }\n\n      var dimensions = getSliderDimensions();\n\n      // If `dimensions` doesn't have height and width it might be the first attempt so we will refresh dimensions\n      if (dimensions && !dimensions.height && !dimensions.width) {\n        refreshSliderDimensions();\n        dimensions = sliderDimensions;\n      }\n\n      tickCanvas[0].width = dimensions.width;\n      tickCanvas[0].height = dimensions.height;\n\n      var distance;\n      for (var i = 0; i <= numSteps; i++) {\n        var trackTicksStyle = $window.getComputedStyle(tickContainer[0]);\n        tickCtx.fillStyle = trackTicksStyle.color || 'black';\n\n        distance = Math.floor((vertical ? dimensions.height : dimensions.width) * (i / numSteps));\n\n        tickCtx.fillRect(vertical ? 0 : distance - 1,\n          vertical ? distance - 1 : 0,\n          vertical ? dimensions.width : 2,\n          vertical ? 2 : dimensions.height);\n      }\n    }\n\n    function clearTicks() {\n      if (tickCanvas && tickCtx) {\n        var dimensions = getSliderDimensions();\n        tickCtx.clearRect(0, 0, dimensions.width, dimensions.height);\n      }\n    }\n\n    /**\n     * Refreshing Dimensions\n     */\n    var sliderDimensions = {};\n    refreshSliderDimensions();\n    function refreshSliderDimensions() {\n      sliderDimensions = trackContainer[0].getBoundingClientRect();\n    }\n    function getSliderDimensions() {\n      throttledRefreshDimensions();\n      return sliderDimensions;\n    }\n\n    /**\n     * left/right/up/down arrow listener\n     * @param {!KeyboardEvent} ev\n     */\n    function keydownListener(ev) {\n      if (isDisabled()) return;\n      var keyCodes = $mdConstant.KEY_CODE;\n\n      var changeAmount;\n      switch (ev.keyCode) {\n        case keyCodes.DOWN_ARROW:\n        case keyCodes.LEFT_ARROW:\n          ev.preventDefault();\n          changeAmount = -step;\n          break;\n        case keyCodes.UP_ARROW:\n        case keyCodes.RIGHT_ARROW:\n          ev.preventDefault();\n          changeAmount = step;\n          break;\n        case keyCodes.PAGE_DOWN:\n          ev.preventDefault();\n          changeAmount = -step * stepPageSize;\n          break;\n        case keyCodes.PAGE_UP:\n          ev.preventDefault();\n          changeAmount = step * stepPageSize;\n          break;\n        case keyCodes.HOME:\n          ev.preventDefault();\n          ev.stopPropagation();\n          updateValue(min);\n          break;\n        case keyCodes.END:\n          ev.preventDefault();\n          ev.stopPropagation();\n          updateValue(max);\n          break;\n      }\n      if (changeAmount) {\n        changeAmount = invert ? -changeAmount : changeAmount;\n        if (ev.metaKey || ev.ctrlKey || ev.altKey) {\n          changeAmount *= modifierMultiplier;\n        }\n        ev.preventDefault();\n        ev.stopPropagation();\n        updateValue(ngModelCtrl.$viewValue + changeAmount);\n      }\n    }\n\n    /**\n     * @param value new slider value used for setting the model value\n     */\n    function updateValue(value) {\n      scope.$evalAsync(function() {\n        setModelValue(value);\n      });\n    }\n\n    function mouseDownListener() {\n      redrawTicks();\n\n      scope.mouseActive = true;\n      wrapper.removeClass('md-focused');\n\n      $timeout(function() {\n        scope.mouseActive = false;\n      }, 100);\n    }\n\n    function focusListener() {\n      if (scope.mouseActive === false) {\n        wrapper.addClass('md-focused');\n      }\n    }\n\n    function blurListener() {\n      wrapper.removeClass('md-focused');\n      element.removeClass('md-active');\n      clearTicks();\n    }\n\n    /**\n     * ngModel setters and validators\n     */\n    function setModelValue(value) {\n      ngModelCtrl.$setViewValue(minMaxValidator(stepValidator(value)));\n    }\n    function ngModelRender() {\n      if (isNaN(ngModelCtrl.$viewValue)) {\n        ngModelCtrl.$viewValue = ngModelCtrl.$modelValue;\n      }\n\n      ngModelCtrl.$viewValue = minMaxValidator(ngModelCtrl.$viewValue);\n\n      var percent = valueToPercent(ngModelCtrl.$viewValue);\n      scope.modelValue = ngModelCtrl.$viewValue;\n      wrapper.attr('aria-valuenow', ngModelCtrl.$viewValue);\n      setSliderPercent(percent);\n      thumbText.text(ngModelCtrl.$viewValue);\n    }\n\n    function minMaxValidator(value, minValue, maxValue) {\n      if (angular.isNumber(value)) {\n        minValue = angular.isNumber(minValue) ? minValue : min;\n        maxValue = angular.isNumber(maxValue) ? maxValue : max;\n\n        return Math.max(minValue, Math.min(maxValue, value));\n      }\n    }\n\n    function stepValidator(value) {\n      if (angular.isNumber(value)) {\n        var formattedValue = (Math.round((value - min) / step) * step + min);\n        formattedValue = (Math.round(formattedValue * Math.pow(10, round)) / Math.pow(10, round));\n\n        if (containerCtrl && containerCtrl.fitInputWidthToTextLength) {\n          $mdUtil.debounce(function () {\n            containerCtrl.fitInputWidthToTextLength(formattedValue.toString().length);\n          }, 100)();\n        }\n\n        return formattedValue;\n      }\n    }\n\n    /**\n     * @param {number} percent 0-1\n     */\n    function setSliderPercent(percent) {\n\n      percent = clamp(percent);\n\n      var thumbPosition = (percent * 100) + '%';\n      var activeTrackPercent = invert ? (1 - percent) * 100 + '%' : thumbPosition;\n\n      if (vertical) {\n        thumbContainer.css('bottom', thumbPosition);\n      }\n      else {\n        $mdUtil.bidiProperty(thumbContainer, 'left', 'right', thumbPosition);\n      }\n\n\n      activeTrack.css(vertical ? 'height' : 'width', activeTrackPercent);\n\n      element.toggleClass((invert ? 'md-max' : 'md-min'), percent === 0);\n      element.toggleClass((invert ? 'md-min' : 'md-max'), percent === 1);\n    }\n\n    /**\n     * Slide listeners\n     */\n    var isDragging = false;\n\n    function onPressDown(ev) {\n      if (isDisabled()) return;\n\n      element.addClass('md-active');\n      element[0].focus();\n      refreshSliderDimensions();\n\n      var exactVal = percentToValue(positionToPercent(vertical ? ev.srcEvent.clientY : ev.srcEvent.clientX));\n      var closestVal = minMaxValidator(stepValidator(exactVal));\n      scope.$apply(function() {\n        setModelValue(closestVal);\n        setSliderPercent(valueToPercent(closestVal));\n      });\n    }\n    function onPressUp(ev) {\n      if (isDisabled()) return;\n\n      element.removeClass('md-dragging');\n\n      var exactVal = percentToValue(positionToPercent(vertical ? ev.srcEvent.clientY : ev.srcEvent.clientX));\n      var closestVal = minMaxValidator(stepValidator(exactVal));\n      scope.$apply(function() {\n        setModelValue(closestVal);\n        ngModelRender();\n      });\n    }\n    function onDragStart(ev) {\n      if (isDisabled()) return;\n      isDragging = true;\n\n      ev.stopPropagation();\n\n      element.addClass('md-dragging');\n      setSliderFromEvent(ev);\n    }\n    function onDrag(ev) {\n      if (!isDragging) return;\n      ev.stopPropagation();\n      setSliderFromEvent(ev);\n    }\n    function onDragEnd(ev) {\n      if (!isDragging) return;\n      ev.stopPropagation();\n      isDragging = false;\n    }\n\n    function setSliderFromEvent(ev) {\n      // While panning discrete, update only the\n      // visual positioning but not the model value.\n      if (discrete) adjustThumbPosition(vertical ? ev.srcEvent.clientY : ev.srcEvent.clientX);\n      else            doSlide(vertical ? ev.srcEvent.clientY : ev.srcEvent.clientX);\n    }\n\n    /**\n     * Slide the UI by changing the model value\n     * @param x\n     */\n    function doSlide(x) {\n      scope.$evalAsync(function() {\n        setModelValue(percentToValue(positionToPercent(x)));\n      });\n    }\n\n    /**\n     * Slide the UI without changing the model (while dragging/panning)\n     * @param x\n     */\n    function adjustThumbPosition(x) {\n      var exactVal = percentToValue(positionToPercent(x));\n      var closestVal = minMaxValidator(stepValidator(exactVal));\n      setSliderPercent(positionToPercent(x));\n      thumbText.text(closestVal);\n    }\n\n    /**\n    * Clamps the value to be between 0 and 1.\n    * @param {number} value The value to clamp.\n    * @returns {number}\n    */\n    function clamp(value) {\n      return Math.max(0, Math.min(value || 0, 1));\n    }\n\n    /**\n     * Convert position on slider to percentage value of offset from beginning...\n     * @param position\n     * @returns {number}\n     */\n    function positionToPercent(position) {\n      var offset = vertical ? sliderDimensions.top : sliderDimensions.left;\n      var size = vertical ? sliderDimensions.height : sliderDimensions.width;\n      var calc = (position - offset) / size;\n\n      if (!vertical && $mdUtil.isRtl(attr)) {\n        calc = 1 - calc;\n      }\n\n      return Math.max(0, Math.min(1, vertical ? 1 - calc : calc));\n    }\n\n    /**\n     * Convert percentage offset on slide to equivalent model value\n     * @param percent\n     * @returns {*}\n     */\n    function percentToValue(percent) {\n      var adjustedPercent = invert ? (1 - percent) : percent;\n      return (min + adjustedPercent * (max - min));\n    }\n\n    function valueToPercent(val) {\n      var percent = (val - min) / (max - min);\n      return invert ? (1 - percent) : percent;\n    }\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.sticky\n * @description\n * Sticky effects for md.\n */\nMdSticky.$inject = [\"$mdConstant\", \"$$rAF\", \"$mdUtil\", \"$compile\"];\nangular\n  .module('material.components.sticky', [\n    'material.core',\n    'material.components.content'\n  ])\n  .factory('$mdSticky', MdSticky);\n\n/**\n * @ngdoc service\n * @name $mdSticky\n * @module material.components.sticky\n *\n * @description\n * The `$mdSticky` service provides the capability to make elements sticky, even when the browser\n * does not support `position: sticky`.\n *\n * Whenever the current browser supports stickiness natively, the `$mdSticky` service will leverage\n * the native browser's sticky functionality.\n *\n * By default the `$mdSticky` service compiles the cloned element, when not specified through the\n * `stickyClone` parameter, in the same scope as the actual element lives.\n *\n * @usage\n * <hljs lang=\"js\">\n *   angular.module('myModule')\n *     .directive('stickyText', function($mdSticky) {\n *       return {\n *         restrict: 'E',\n *         template: '<span>Sticky Text</span>',\n *         link: function(scope, element) {\n *           $mdSticky(scope, element);\n *         }\n *       };\n *     });\n * </hljs>\n *\n * <h3>Notes</h3>\n * When using an element which contains a compiled directive that changes the DOM structure\n * during compilation, you should compile the clone yourself.\n *\n * An example of this usage can be found below:\n * <hljs lang=\"js\">\n *   angular.module('myModule')\n *     .directive('stickySelect', function($mdSticky, $compile) {\n *       var SELECT_TEMPLATE =\n *         '<md-select ng-model=\"selected\">' +\n *         '  <md-option>Option 1</md-option>' +\n *         '</md-select>';\n *\n *       return {\n *         restrict: 'E',\n *         replace: true,\n *         template: SELECT_TEMPLATE,\n *         link: function(scope, element) {\n *           $mdSticky(scope, element, $compile(SELECT_TEMPLATE)(scope));\n *         }\n *       };\n *     });\n * </hljs>\n *\n * @returns {function(IScope, JQLite, ITemplateLinkingFunction=): void} `$mdSticky` returns a\n *   function that takes three arguments:\n *   - `scope`: the scope to use when compiling the clone and listening for the `$destroy` event,\n *      which triggers removal of the clone\n *   - `element`: the element that will be 'sticky'\n *   - `stickyClone`: An optional clone of the element (returned from AngularJS'\n *      [$compile service](https://docs.angularjs.org/api/ng/service/$compile#usage)),\n *      that will be shown when the user starts scrolling past the original element. If not\n *      provided, the result of `element.clone()` will be used and compiled in the given scope.\n */\nfunction MdSticky($mdConstant, $$rAF, $mdUtil, $compile) {\n\n  var browserStickySupport = $mdUtil.checkStickySupport();\n\n  /**\n   * Registers an element as sticky, used internally by directives to register themselves.\n   */\n  return function registerStickyElement(scope, element, stickyClone) {\n    var contentCtrl = element.controller('mdContent');\n    if (!contentCtrl) return;\n\n    if (browserStickySupport) {\n      element.css({\n        position: browserStickySupport,\n        top: 0,\n        'z-index': 2\n      });\n    } else {\n      var $$sticky = contentCtrl.$element.data('$$sticky');\n      if (!$$sticky) {\n        $$sticky = setupSticky(contentCtrl);\n        contentCtrl.$element.data('$$sticky', $$sticky);\n      }\n\n      // Compile our cloned element, when cloned in this service, into the given scope.\n      var cloneElement = stickyClone || $compile(element.clone())(scope);\n\n      var deregister = $$sticky.add(element, cloneElement);\n      scope.$on('$destroy', deregister);\n    }\n  };\n\n  function setupSticky(contentCtrl) {\n    var contentEl = contentCtrl.$element;\n\n    // Refresh elements is very expensive, so we use the debounced\n    // version when possible.\n    var debouncedRefreshElements = $$rAF.throttle(refreshElements);\n\n    // setupAugmentedScrollEvents gives us `$scrollstart` and `$scroll`,\n    // more reliable than `scroll` on android.\n    setupAugmentedScrollEvents(contentEl);\n    contentEl.on('$scrollstart', debouncedRefreshElements);\n    contentEl.on('$scroll', onScroll);\n\n    var self;\n    return self = {\n      prev: null,\n      current: null, // the currently stickied item\n      next: null,\n      items: [],\n      add: add,\n      refreshElements: refreshElements\n    };\n\n    /***************\n     * Public\n     ***************/\n    // Add an element and its sticky clone to this content's sticky collection\n    function add(element, stickyClone) {\n      stickyClone.addClass('md-sticky-clone');\n\n      var item = {\n        element: element,\n        clone: stickyClone\n      };\n      self.items.push(item);\n\n      $mdUtil.nextTick(function() {\n        contentEl.prepend(item.clone);\n      });\n\n      debouncedRefreshElements();\n\n      return function remove() {\n        self.items.forEach(function(item, index) {\n          if (item.element[0] === element[0]) {\n            self.items.splice(index, 1);\n            item.clone.remove();\n          }\n        });\n        debouncedRefreshElements();\n      };\n    }\n\n    function refreshElements() {\n      // Sort our collection of elements by their current position in the DOM.\n      // We need to do this because our elements' order of being added may not\n      // be the same as their order of display.\n      self.items.forEach(refreshPosition);\n      self.items = self.items.sort(function(a, b) {\n        return a.top < b.top ? -1 : 1;\n      });\n\n      // Find which item in the list should be active,\n      // based upon the content's current scroll position\n      var item;\n      var currentScrollTop = contentEl.prop('scrollTop');\n      for (var i = self.items.length - 1; i >= 0; i--) {\n        if (currentScrollTop > self.items[i].top) {\n          item = self.items[i];\n          break;\n        }\n      }\n      setCurrentItem(item);\n    }\n\n    /***************\n     * Private\n     ***************/\n\n    // Find the `top` of an item relative to the content element,\n    // and also the height.\n    function refreshPosition(item) {\n      // Find the top of an item by adding to the offsetHeight until we reach the\n      // content element.\n      var current = item.element[0];\n      item.top = 0;\n      item.left = 0;\n      item.right = 0;\n      while (current && current !== contentEl[0]) {\n        item.top += current.offsetTop;\n        item.left += current.offsetLeft;\n        if (current.offsetParent) {\n          // Compute offsetRight\n          item.right += current.offsetParent.offsetWidth - current.offsetWidth - current.offsetLeft;\n        }\n        current = current.offsetParent;\n      }\n      item.height = item.element.prop('offsetHeight');\n\n      var defaultVal = $mdUtil.floatingScrollbars() ? '0' : undefined;\n      $mdUtil.bidi(item.clone, 'margin-left', item.left, defaultVal);\n      $mdUtil.bidi(item.clone, 'margin-right', defaultVal, item.right);\n    }\n\n    // As we scroll, push in and select the correct sticky element.\n    function onScroll() {\n      var scrollTop = contentEl.prop('scrollTop');\n      var isScrollingDown = scrollTop > (onScroll.prevScrollTop || 0);\n\n      // Store the previous scroll so we know which direction we are scrolling\n      onScroll.prevScrollTop = scrollTop;\n\n      //\n      // AT TOP (not scrolling)\n      //\n      if (scrollTop === 0) {\n        // If we're at the top, just clear the current item and return\n        setCurrentItem(null);\n        return;\n      }\n\n      //\n      // SCROLLING DOWN (going towards the next item)\n      //\n      if (isScrollingDown) {\n\n        // If we've scrolled down past the next item's position, sticky it and return\n        if (self.next && self.next.top <= scrollTop) {\n          setCurrentItem(self.next);\n          return;\n        }\n\n        // If the next item is close to the current one, push the current one up out of the way\n        if (self.current && self.next && self.next.top - scrollTop <= self.next.height) {\n          translate(self.current, scrollTop + (self.next.top - self.next.height - scrollTop));\n          return;\n        }\n      }\n\n      //\n      // SCROLLING UP (not at the top & not scrolling down; must be scrolling up)\n      //\n      if (!isScrollingDown) {\n\n        // If we've scrolled up past the previous item's position, sticky it and return\n        if (self.current && self.prev && scrollTop < self.current.top) {\n          setCurrentItem(self.prev);\n          return;\n        }\n\n        // If the next item is close to the current one, pull the current one down into view\n        if (self.next && self.current && (scrollTop >= (self.next.top - self.current.height))) {\n          translate(self.current, scrollTop + (self.next.top - scrollTop - self.current.height));\n          return;\n        }\n      }\n\n      //\n      // Otherwise, just move the current item to the proper place (scrolling up or down)\n      //\n      if (self.current) {\n        translate(self.current, scrollTop);\n      }\n    }\n\n    function setCurrentItem(item) {\n      if (self.current === item) return;\n      // Deactivate currently active item\n      if (self.current) {\n        translate(self.current, null);\n        setStickyState(self.current, null);\n      }\n\n      // Activate new item if given\n      if (item) {\n        setStickyState(item, 'active');\n      }\n\n      self.current = item;\n      var index = self.items.indexOf(item);\n      // If index === -1, index + 1 = 0. It works out.\n      self.next = self.items[index + 1];\n      self.prev = self.items[index - 1];\n      setStickyState(self.next, 'next');\n      setStickyState(self.prev, 'prev');\n    }\n\n    function setStickyState(item, state) {\n      if (!item || item.state === state) return;\n      if (item.state) {\n        item.clone.attr('sticky-prev-state', item.state);\n        item.element.attr('sticky-prev-state', item.state);\n      }\n      item.clone.attr('sticky-state', state);\n      item.element.attr('sticky-state', state);\n      item.state = state;\n    }\n\n    function translate(item, amount) {\n      if (!item) return;\n      if (amount === null || amount === undefined) {\n        if (item.translateY) {\n          item.translateY = null;\n          item.clone.css($mdConstant.CSS.TRANSFORM, '');\n        }\n      } else {\n        item.translateY = amount;\n\n        $mdUtil.bidi(item.clone, $mdConstant.CSS.TRANSFORM,\n          'translate3d(' + item.left + 'px,' + amount + 'px,0)',\n          'translateY(' + amount + 'px)'\n        );\n      }\n    }\n  }\n\n\n  // Android 4.4 don't accurately give scroll events.\n  // To fix this problem, we setup a fake scroll event. We say:\n  // > If a scroll or touchmove event has happened in the last DELAY milliseconds,\n  //   then send a `$scroll` event every animationFrame.\n  // Additionally, we add $scrollstart and $scrollend events.\n  function setupAugmentedScrollEvents(element) {\n    var SCROLL_END_DELAY = 200;\n    var isScrolling;\n    var lastScrollTime;\n    element.on('scroll touchmove', function() {\n      if (!isScrolling) {\n        isScrolling = true;\n        $$rAF.throttle(loopScrollEvent);\n        element.triggerHandler('$scrollstart');\n      }\n      element.triggerHandler('$scroll');\n      lastScrollTime = +$mdUtil.now();\n    });\n\n    function loopScrollEvent() {\n      if (+$mdUtil.now() - lastScrollTime > SCROLL_END_DELAY) {\n        isScrolling = false;\n        element.triggerHandler('$scrollend');\n      } else {\n        element.triggerHandler('$scroll');\n        $$rAF.throttle(loopScrollEvent);\n      }\n    }\n  }\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.subheader\n * @description\n * SubHeader module\n *\n *  Subheaders are special list tiles that delineate distinct sections of a\n *  list or grid list and are typically related to the current filtering or\n *  sorting criteria. Subheader tiles are either displayed inline with tiles or\n *  can be associated with content, for example, in an adjacent column.\n *\n *  Upon scrolling, subheaders remain pinned to the top of the screen and remain\n *  pinned until pushed on or off screen by the next subheader. @see [Material\n *  Design Specifications](https://material.io/archive/guidelines/components/subheaders.html)\n *\n *  > To improve the visual grouping of content, use the system color for your subheaders.\n *\n */\nMdSubheaderDirective.$inject = [\"$mdSticky\", \"$compile\", \"$mdTheming\", \"$mdUtil\", \"$mdAria\"];\nangular\n  .module('material.components.subheader', [\n    'material.core',\n    'material.components.sticky'\n  ])\n  .directive('mdSubheader', MdSubheaderDirective);\n\n/**\n * @ngdoc directive\n * @name mdSubheader\n * @module material.components.subheader\n *\n * @restrict E\n *\n * @description\n * The `md-subheader` directive creates a sticky subheader for a section.\n *\n * Developers are able to disable the stickiness of the subheader by using the following markup\n *\n * <hljs lang=\"html\">\n *   <md-subheader class=\"md-no-sticky\">Not Sticky</md-subheader>\n * </hljs>\n *\n * ### Notes\n * - The `md-subheader` directive uses the <a ng-href=\"api/service/$mdSticky\">$mdSticky</a> service\n * to make the subheader sticky.\n *\n * > Whenever the current browser doesn't support stickiness natively, the subheader\n * will be compiled twice to create a sticky clone of the subheader.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-subheader>Online Friends</md-subheader>\n * </hljs>\n */\n\nfunction MdSubheaderDirective($mdSticky, $compile, $mdTheming, $mdUtil, $mdAria) {\n  return {\n    restrict: 'E',\n    replace: true,\n    transclude: true,\n    template: (\n    '<div class=\"md-subheader _md\">' +\n    '  <div class=\"md-subheader-inner\">' +\n    '    <div class=\"md-subheader-content\"></div>' +\n    '  </div>' +\n    '</div>'\n    ),\n    link: function postLink(scope, element, attr, controllers, transclude) {\n      $mdTheming(element);\n      element.addClass('_md');\n\n      // Remove the ngRepeat attribute from the root element, because we don't want to compile\n      // the ngRepeat for the sticky clone again.\n      $mdUtil.prefixer().removeAttribute(element, 'ng-repeat');\n\n      var outerHTML = element[0].outerHTML;\n\n      function getContent(el) {\n        return angular.element(el[0].querySelector('.md-subheader-content'));\n      }\n\n      // Set the ARIA attributes on the original element since it keeps it's original place in\n      // the DOM, whereas the clones are in reverse order. Should be done after the outerHTML,\n      // in order to avoid having multiple element be marked as headers.\n      attr.$set('role', 'heading');\n      $mdAria.expect(element, 'aria-level', '2');\n\n      // Transclude the user-given contents of the subheader\n      // the conventional way.\n      transclude(scope, function(clone) {\n        getContent(element).append(clone);\n      });\n\n      // Create another clone, that uses the outer and inner contents\n      // of the element, that will be 'stickied' as the user scrolls.\n      if (!element.hasClass('md-no-sticky')) {\n        transclude(scope, function(clone) {\n          // If the user adds an ng-if or ng-repeat directly to the md-subheader element, the\n          // compiled clone below will only be a comment tag (since they replace their elements with\n          // a comment) which cannot be properly passed to the $mdSticky; so we wrap it in our own\n          // DIV to ensure we have something $mdSticky can use\n          var wrapper = $compile('<div class=\"md-subheader-wrapper\" aria-hidden=\"true\">' + outerHTML + '</div>')(scope);\n\n          // Delay initialization until after any `ng-if`/`ng-repeat`/etc has finished before\n          // attempting to create the clone\n          $mdUtil.nextTick(function() {\n            // Append our transcluded clone into the wrapper.\n            // We don't have to recompile the element again, because the clone is already\n            // compiled in it's transclusion scope. If we recompile the outerHTML of the new clone, we would lose\n            // our ngIf's and other previous registered bindings / properties.\n            getContent(wrapper).append(clone);\n          });\n\n          // Make the element sticky and provide the stickyClone our self, to avoid recompilation of the subheader\n          // element.\n          $mdSticky(scope, element, wrapper);\n        });\n      }\n    }\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.swipe\n * @description Swipe module!\n */\n/**\n * @ngdoc directive\n * @module material.components.swipe\n * @name mdSwipeLeft\n *\n * @restrict A\n *\n * @description\n * The md-swipe-left directive allows you to specify custom behavior when an element is swiped\n * left.\n *\n * ### Notes\n * - The `$event.currentTarget` of the swiped element will be `null`, but you can get a\n * reference to the element that actually holds the `md-swipe-left` directive by using\n * `$target.current`\n *\n * > You can see this in action on the <a ng-href=\"demo/swipe\">demo page</a> (Look at the Developer\n * Tools console while swiping).\n *\n * @usage\n * <hljs lang=\"html\">\n * <div md-swipe-left=\"onSwipeLeft($event, $target)\">Swipe me left!</div>\n * </hljs>\n */\n/**\n * @ngdoc directive\n * @module material.components.swipe\n * @name mdSwipeRight\n *\n * @restrict A\n *\n * @description\n * The md-swipe-right directive allows you to specify custom behavior when an element is swiped\n * right.\n *\n * ### Notes\n * - The `$event.currentTarget` of the swiped element will be `null`, but you can get a\n * reference to the element that actually holds the `md-swipe-right` directive by using\n * `$target.current`\n *\n * > You can see this in action on the <a ng-href=\"demo/swipe\">demo page</a> (Look at the Developer\n * Tools console while swiping).\n *\n * @usage\n * <hljs lang=\"html\">\n * <div md-swipe-right=\"onSwipeRight($event, $target)\">Swipe me right!</div>\n * </hljs>\n */\n/**\n * @ngdoc directive\n * @module material.components.swipe\n * @name mdSwipeUp\n *\n * @restrict A\n *\n * @description\n * The md-swipe-up directive allows you to specify custom behavior when an element is swiped\n * up.\n *\n * ### Notes\n * - The `$event.currentTarget` of the swiped element will be `null`, but you can get a\n * reference to the element that actually holds the `md-swipe-up` directive by using\n * `$target.current`\n *\n * > You can see this in action on the <a ng-href=\"demo/swipe\">demo page</a> (Look at the Developer\n * Tools console while swiping).\n *\n * @usage\n * <hljs lang=\"html\">\n * <div md-swipe-up=\"onSwipeUp($event, $target)\">Swipe me up!</div>\n * </hljs>\n */\n/**\n * @ngdoc directive\n * @module material.components.swipe\n * @name mdSwipeDown\n *\n * @restrict A\n *\n * @description\n * The md-swipe-down directive allows you to specify custom behavior when an element is swiped\n * down.\n *\n * ### Notes\n * - The `$event.currentTarget` of the swiped element will be `null`, but you can get a\n * reference to the element that actually holds the `md-swipe-down` directive by using\n * `$target.current`\n *\n * > You can see this in action on the <a ng-href=\"demo/swipe\">demo page</a> (Look at the Developer\n * Tools console while swiping).\n *\n * @usage\n * <hljs lang=\"html\">\n * <div md-swipe-down=\"onSwipeDown($event, $target)\">Swipe me down!</div>\n * </hljs>\n */\n\nangular.module('material.components.swipe', ['material.core'])\n    .directive('mdSwipeLeft', getDirective('SwipeLeft'))\n    .directive('mdSwipeRight', getDirective('SwipeRight'))\n    .directive('mdSwipeUp', getDirective('SwipeUp'))\n    .directive('mdSwipeDown', getDirective('SwipeDown'));\n\nfunction getDirective(name) {\n    DirectiveFactory.$inject = [\"$parse\"];\n  var directiveName = 'md' + name;\n  var eventName = '$md.' + name.toLowerCase();\n\n  return DirectiveFactory;\n\n  /* @ngInject */\n  function DirectiveFactory($parse) {\n      return { restrict: 'A', link: postLink };\n      function postLink(scope, element, attr) {\n        var fn = $parse(attr[directiveName]);\n        element.on(eventName, function(ev) {\n          var currentTarget = ev.currentTarget;\n          scope.$applyAsync(function() { fn(scope, { $event: ev, $target: { current: currentTarget } }); });\n        });\n      }\n    }\n}\n\n\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.switch\n */\n\nMdSwitch.$inject = [\"mdCheckboxDirective\", \"$mdUtil\", \"$mdConstant\", \"$parse\", \"$$rAF\", \"$mdGesture\", \"$timeout\"];\nangular.module('material.components.switch', [\n  'material.core',\n  'material.components.checkbox'\n])\n  .directive('mdSwitch', MdSwitch);\n\n/**\n * @ngdoc directive\n * @module material.components.switch\n * @name mdSwitch\n * @restrict E\n *\n * The switch directive is used very much like the normal [angular checkbox](https://docs.angularjs.org/api/ng/input/input%5Bcheckbox%5D).\n *\n * As per the [Material Design spec](https://material.io/archive/guidelines/style/color.html#color-color-system)\n * the switch is in the accent color by default. The primary color palette may be used with\n * the `md-primary` class.\n *\n * @param {expression} ng-model Assignable angular expression to data-bind to.\n * @param {string=} name Property name of the form under which the control is published.\n * @param {expression=} ng-true-value The value to which the expression should be set when selected.\n * @param {expression=} ng-false-value The value to which the expression should be set when not selected.\n * @param {expression=} ng-change Expression to be executed when the model value changes.\n * @param {expression=} ng-disabled En/Disable based on the expression.\n * @param {boolean=} md-no-ink Use of attribute indicates use of ripple ink effects.\n * @param {string=} aria-label Publish the button label used by screen-readers for accessibility. Defaults to the switch's text.\n * @param {boolean=} md-invert When set to true, the switch will be inverted.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-switch ng-model=\"isActive\" aria-label=\"Finished?\">\n *   Finished ?\n * </md-switch>\n *\n * <md-switch md-no-ink ng-model=\"hasInk\" aria-label=\"No Ink Effects\">\n *   No Ink Effects\n * </md-switch>\n *\n * <md-switch ng-disabled=\"true\" ng-model=\"isDisabled\" aria-label=\"Disabled\">\n *   Disabled\n * </md-switch>\n *\n * </hljs>\n */\nfunction MdSwitch(mdCheckboxDirective, $mdUtil, $mdConstant, $parse, $$rAF, $mdGesture, $timeout) {\n  var checkboxDirective = mdCheckboxDirective[0];\n\n  return {\n    restrict: 'E',\n    priority: $mdConstant.BEFORE_NG_ARIA,\n    transclude: true,\n    template:\n      '<div class=\"md-container\">' +\n        '<div class=\"md-bar\"></div>' +\n        '<div class=\"md-thumb-container\">' +\n          '<div class=\"md-thumb\" md-ink-ripple md-ink-ripple-checkbox></div>' +\n        '</div>'+\n      '</div>' +\n      '<div ng-transclude class=\"md-label\"></div>',\n    require: ['^?mdInputContainer', '?ngModel', '?^form'],\n    compile: mdSwitchCompile\n  };\n\n  function mdSwitchCompile(element, attr) {\n    var checkboxLink = checkboxDirective.compile(element, attr).post;\n    // No transition on initial load.\n    element.addClass('md-dragging');\n\n    return function (scope, element, attr, ctrls) {\n      var containerCtrl = ctrls[0];\n      var ngModel = ctrls[1] || $mdUtil.fakeNgModel();\n      var formCtrl = ctrls[2];\n\n      var disabledGetter = null;\n      if (attr.disabled != null) {\n        disabledGetter = function() { return true; };\n      } else if (attr.ngDisabled) {\n        disabledGetter = $parse(attr.ngDisabled);\n      }\n\n      var thumbContainer = angular.element(element[0].querySelector('.md-thumb-container'));\n      var switchContainer = angular.element(element[0].querySelector('.md-container'));\n      var labelContainer = angular.element(element[0].querySelector('.md-label'));\n\n      // no transition on initial load\n      $$rAF(function() {\n        element.removeClass('md-dragging');\n      });\n\n      checkboxLink(scope, element, attr, ctrls);\n\n      if (disabledGetter) {\n        scope.$watch(disabledGetter, function(isDisabled) {\n          element.attr('tabindex', isDisabled ? -1 : 0);\n        });\n      }\n\n      attr.$observe('mdInvert', function(newValue) {\n        var isInverted = $mdUtil.parseAttributeBoolean(newValue);\n\n        isInverted ? element.prepend(labelContainer) : element.prepend(switchContainer);\n\n        // Toggle a CSS class to update the margin.\n        element.toggleClass('md-inverted', isInverted);\n      });\n\n      // These events are triggered by setup drag\n      $mdGesture.register(switchContainer, 'drag');\n      switchContainer\n        .on('$md.dragstart', onDragStart)\n        .on('$md.drag', onDrag)\n        .on('$md.dragend', onDragEnd);\n\n      var drag;\n      function onDragStart(ev) {\n        // Don't go if the switch is disabled.\n        if (disabledGetter && disabledGetter(scope)) return;\n        ev.stopPropagation();\n\n        element.addClass('md-dragging');\n        drag = {width: thumbContainer.prop('offsetWidth')};\n      }\n\n      function onDrag(ev) {\n        if (!drag) return;\n        ev.stopPropagation();\n        ev.srcEvent && ev.srcEvent.preventDefault();\n\n        var percent = ev.pointer.distanceX / drag.width;\n\n        // if checked, start from right. else, start from left\n        var translate = ngModel.$viewValue ?  1 + percent : percent;\n        // Make sure the switch stays inside its bounds, 0-1%\n        translate = Math.max(0, Math.min(1, translate));\n\n        thumbContainer.css($mdConstant.CSS.TRANSFORM, 'translate3d(' + (100*translate) + '%,0,0)');\n        drag.translate = translate;\n      }\n\n      function onDragEnd(ev) {\n        if (!drag) return;\n        ev.stopPropagation();\n\n        element.removeClass('md-dragging');\n        thumbContainer.css($mdConstant.CSS.TRANSFORM, '');\n\n        // We changed if there is no distance (this is a click a click),\n        // or if the drag distance is >50% of the total.\n        var isChanged = ngModel.$viewValue ? drag.translate < 0.5 : drag.translate > 0.5;\n        if (isChanged) {\n          applyModelValue(!ngModel.$viewValue);\n        }\n        drag = null;\n\n        // Wait for incoming mouse click\n        scope.skipToggle = true;\n        $timeout(function() {\n          scope.skipToggle = false;\n        }, 1);\n      }\n\n      function applyModelValue(newValue) {\n        scope.$apply(function() {\n          ngModel.$setViewValue(newValue);\n          ngModel.$render();\n        });\n      }\n\n    };\n  }\n\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.tabs\n * @description\n *\n *  Tabs, created with the `<md-tabs>` directive provide *tabbed* navigation with different styles.\n *  The Tabs component consists of clickable tabs that are aligned horizontally side-by-side.\n *\n *  Features include support for:\n *\n *  - static or dynamic tabs,\n *  - responsive designs,\n *  - accessibility support (ARIA),\n *  - tab pagination,\n *  - external or internal tab content,\n *  - focus indicators and arrow-key navigations,\n *  - programmatic lookup and access to tab controllers, and\n *  - dynamic transitions through different tab contents.\n *\n */\n/*\n * @see js folder for tabs implementation\n */\nangular.module('material.components.tabs', [\n  'material.core',\n  'material.components.icon'\n]);\n\n})();\n(function(){\n\"use strict\";\n\nangular\n.module('material.components.tabs')\n.service('MdTabsPaginationService', MdTabsPaginationService);\n\n/**\n * @private\n * @module material.components.tabs\n * @name MdTabsPaginationService\n * @description Provides many standalone functions to ease in pagination calculations.\n *\n * Most functions accept the elements and the current offset.\n *\n * The `elements` parameter is typically the value returned from the `getElements()` function of the\n * tabsController.\n *\n * The `offset` parameter is always positive regardless of LTR or RTL (we simply make the LTR one\n * negative when we apply our transform). This is typically the `ctrl.leftOffset` variable in the\n * tabsController.\n *\n * @returns MdTabsPaginationService\n * @constructor\n */\nfunction MdTabsPaginationService() {\n  return {\n    decreasePageOffset: decreasePageOffset,\n    increasePageOffset: increasePageOffset,\n    getTabOffsets: getTabOffsets,\n    getTotalTabsWidth: getTotalTabsWidth\n  };\n\n  /**\n   * Returns the offset for the next decreasing page.\n   *\n   * @param elements\n   * @param currentOffset\n   * @returns {number}\n   */\n  function decreasePageOffset(elements, currentOffset) {\n    var canvas       = elements.canvas,\n        tabOffsets   = getTabOffsets(elements),\n        i, firstVisibleTabOffset;\n\n    // Find the first fully visible tab in offset range\n    for (i = 0; i < tabOffsets.length; i++) {\n      if (tabOffsets[i] >= currentOffset) {\n        firstVisibleTabOffset = tabOffsets[i];\n        break;\n      }\n    }\n\n    // Return (the first visible tab offset - the tabs container width) without going negative\n    return Math.max(0, firstVisibleTabOffset - canvas.clientWidth);\n  }\n\n  /**\n   * Returns the offset for the next increasing page.\n   *\n   * @param elements\n   * @param currentOffset\n   * @returns {number}\n   */\n  function increasePageOffset(elements, currentOffset) {\n    var canvas       = elements.canvas,\n        maxOffset    = getTotalTabsWidth(elements) - canvas.clientWidth,\n        tabOffsets   = getTabOffsets(elements),\n        i, firstHiddenTabOffset;\n\n    // Find the first partially (or fully) invisible tab\n    for (i = 0; i < tabOffsets.length, tabOffsets[i] <= currentOffset + canvas.clientWidth; i++) {\n      firstHiddenTabOffset = tabOffsets[i];\n    }\n\n    // Return the offset of the first hidden tab, or the maximum offset (whichever is smaller)\n    return Math.min(maxOffset, firstHiddenTabOffset);\n  }\n\n  /**\n   * Returns the offsets of all of the tabs based on their widths.\n   *\n   * @param elements\n   * @returns {number[]}\n   */\n  function getTabOffsets(elements) {\n    var i, tab, currentOffset = 0, offsets = [];\n\n    for (i = 0; i < elements.tabs.length; i++) {\n      tab = elements.tabs[i];\n      offsets.push(currentOffset);\n      currentOffset += tab.offsetWidth;\n    }\n\n    return offsets;\n  }\n\n  /**\n   * Sum the width of all tabs.\n   *\n   * @param elements\n   * @returns {number}\n   */\n  function getTotalTabsWidth(elements) {\n    var sum = 0, i, tab;\n\n    for (i = 0; i < elements.tabs.length; i++) {\n      tab = elements.tabs[i];\n      sum += tab.offsetWidth;\n    }\n\n    return sum;\n  }\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc directive\n * @name mdTab\n * @module material.components.tabs\n *\n * @restrict E\n *\n * @description\n * The `<md-tab>` is a nested directive used within `<md-tabs>` to specify a tab with a **label**\n * and optional *view content*.\n *\n * If the `label` attribute is not specified, then an optional `<md-tab-label>` tag can be used to\n * specify more complex tab header markup. If neither the **label** nor the **md-tab-label** are\n * specified, then the nested markup of the `<md-tab>` is used as the tab header markup.\n *\n * Please note that if you use `<md-tab-label>`, your content **MUST** be wrapped in the\n * `<md-tab-body>` tag.  This is to define a clear separation between the tab content and the tab\n * label.\n *\n * This container is used by the TabsController to show/hide the active tab's content view. This\n * synchronization is automatically managed by the internal TabsController whenever the tab\n * selection changes. Selection changes can be initiated via data binding changes, programmatic\n * invocation, or user gestures.\n *\n * @param {string=} label Optional attribute to specify a simple string as the tab label\n * @param {boolean=} ng-disabled If present and expression evaluates to truthy, disabled tab\n *  selection.\n * @param {string=} md-tab-class Optional attribute to specify a class that will be applied to the\n *  tab's button\n * @param {expression=} md-on-deselect Expression to be evaluated after the tab has been\n *  de-selected.\n * @param {expression=} md-on-select Expression to be evaluated after the tab has been selected.\n * @param {boolean=} md-active When true, sets the active tab.  Note: There can only be one active\n *  tab at a time.\n *\n *\n * @usage\n *\n * <hljs lang=\"html\">\n * <md-tab label=\"My Tab\" md-tab-class=\"my-content-tab\" ng-disabled md-on-select=\"onSelect()\"\n *         md-on-deselect=\"onDeselect()\">\n *   <h3>My Tab content</h3>\n * </md-tab>\n *\n * <md-tab>\n *   <md-tab-label>\n *     <h3>My Tab</h3>\n *   </md-tab-label>\n *   <md-tab-body>\n *     <p>\n *       Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque\n *       laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi\n *       architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit\n *       aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione\n *       voluptatem sequi nesciunt.\n *     </p>\n *   </md-tab-body>\n * </md-tab>\n * </hljs>\n *\n */\nangular\n    .module('material.components.tabs')\n    .directive('mdTab', MdTab);\n\nfunction MdTab () {\n  return {\n    require:  '^?mdTabs',\n    terminal: true,\n    compile:  function (element, attr) {\n      var label = firstChild(element, 'md-tab-label'),\n          body  = firstChild(element, 'md-tab-body');\n\n      if (label.length === 0) {\n        label = angular.element('<md-tab-label></md-tab-label>');\n        if (attr.label) label.text(attr.label);\n        else label.append(element.contents());\n\n        if (body.length === 0) {\n          var contents = element.contents().detach();\n          body         = angular.element('<md-tab-body></md-tab-body>');\n          body.append(contents);\n        }\n      }\n\n      element.append(label);\n      if (body.html()) element.append(body);\n\n      return postLink;\n    },\n    scope:    {\n      active:   '=?mdActive',\n      disabled: '=?ngDisabled',\n      select:   '&?mdOnSelect',\n      deselect: '&?mdOnDeselect',\n      tabClass: '@mdTabClass'\n    }\n  };\n\n  function postLink (scope, element, attr, ctrl) {\n    if (!ctrl) return;\n    var index = ctrl.getTabElementIndex(element),\n        body  = firstChild(element, 'md-tab-body').remove(),\n        label = firstChild(element, 'md-tab-label').remove(),\n        data  = ctrl.insertTab({\n          scope:    scope,\n          parent:   scope.$parent,\n          index:    index,\n          element:  element,\n          template: body.html(),\n          label:    label.html()\n        }, index);\n\n    scope.select   = scope.select || angular.noop;\n    scope.deselect = scope.deselect || angular.noop;\n\n    scope.$watch('active', function (active) { if (active) ctrl.select(data.getIndex(), true); });\n    scope.$watch('disabled', function () { ctrl.refreshIndex(); });\n    scope.$watch(\n        function () {\n          return ctrl.getTabElementIndex(element);\n        },\n        function (newIndex) {\n          data.index = newIndex;\n          ctrl.updateTabOrder();\n        }\n    );\n    scope.$on('$destroy', function () { ctrl.removeTab(data); });\n  }\n\n  function firstChild (element, tagName) {\n    var children = element[0].children;\n    for (var i = 0, len = children.length; i < len; i++) {\n      var child = children[i];\n      if (child.tagName === tagName.toUpperCase()) return angular.element(child);\n    }\n    return angular.element();\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\nangular\n    .module('material.components.tabs')\n    .directive('mdTabItem', MdTabItem);\n\nfunction MdTabItem () {\n  return {\n    require: '^?mdTabs',\n    link:    function link (scope, element, attr, ctrl) {\n      if (!ctrl) return;\n      ctrl.attachRipple(scope, element);\n    }\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\nangular\n    .module('material.components.tabs')\n    .directive('mdTabLabel', MdTabLabel);\n\nfunction MdTabLabel () {\n  return { terminal: true };\n}\n\n\n})();\n(function(){\n\"use strict\";\n\n\nMdTabScroll.$inject = [\"$parse\"];angular.module('material.components.tabs')\n    .directive('mdTabScroll', MdTabScroll);\n\nfunction MdTabScroll ($parse) {\n  return {\n    restrict: 'A',\n    compile: function ($element, attr) {\n      var fn = $parse(attr.mdTabScroll, null, true);\n      return function ngEventHandler (scope, element) {\n        element.on('wheel', function (event) {\n          scope.$apply(function () { fn(scope, { $event: event }); });\n        });\n      };\n    }\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n\nMdTabsController.$inject = [\"$scope\", \"$element\", \"$window\", \"$mdConstant\", \"$mdTabInkRipple\", \"$mdUtil\", \"$animateCss\", \"$attrs\", \"$compile\", \"$mdTheming\", \"$mdInteraction\", \"$timeout\", \"MdTabsPaginationService\"];angular\n    .module('material.components.tabs')\n    .controller('MdTabsController', MdTabsController);\n\n/**\n * @ngInject\n */\nfunction MdTabsController ($scope, $element, $window, $mdConstant, $mdTabInkRipple, $mdUtil,\n                           $animateCss, $attrs, $compile, $mdTheming, $mdInteraction, $timeout,\n                           MdTabsPaginationService) {\n  // define private properties\n  var ctrl      = this,\n      locked    = false,\n      queue     = [],\n      destroyed = false,\n      loaded    = false;\n\n  // Define public methods\n  ctrl.$onInit            = $onInit;\n  ctrl.updatePagination   = $mdUtil.debounce(updatePagination, 100);\n  ctrl.redirectFocus      = redirectFocus;\n  ctrl.attachRipple       = attachRipple;\n  ctrl.insertTab          = insertTab;\n  ctrl.removeTab          = removeTab;\n  ctrl.select             = select;\n  ctrl.scroll             = scroll;\n  ctrl.nextPage           = nextPage;\n  ctrl.previousPage       = previousPage;\n  ctrl.keydown            = keydown;\n  ctrl.canPageForward     = canPageForward;\n  ctrl.canPageBack        = canPageBack;\n  ctrl.refreshIndex       = refreshIndex;\n  ctrl.incrementIndex     = incrementIndex;\n  ctrl.getTabElementIndex = getTabElementIndex;\n  ctrl.updateInkBarStyles = $mdUtil.debounce(updateInkBarStyles, 100);\n  ctrl.updateTabOrder     = $mdUtil.debounce(updateTabOrder, 100);\n  ctrl.getFocusedTabId    = getFocusedTabId;\n\n  // For AngularJS 1.4 and older, where there are no lifecycle hooks but bindings are pre-assigned,\n  // manually call the $onInit hook.\n  if (angular.version.major === 1 && angular.version.minor <= 4) {\n    this.$onInit();\n  }\n\n  /**\n   * AngularJS Lifecycle hook for newer AngularJS versions.\n   * Bindings are not guaranteed to have been assigned in the controller, but they are in the\n   * $onInit hook.\n   */\n  function $onInit() {\n    // Define one-way bindings\n    defineOneWayBinding('stretchTabs', handleStretchTabs);\n\n    // Define public properties with change handlers\n    defineProperty('focusIndex', handleFocusIndexChange, ctrl.selectedIndex || 0);\n    defineProperty('offsetLeft', handleOffsetChange, 0);\n    defineProperty('hasContent', handleHasContent, false);\n    defineProperty('maxTabWidth', handleMaxTabWidth, getMaxTabWidth());\n    defineProperty('shouldPaginate', handleShouldPaginate, false);\n\n    // Define boolean attributes\n    defineBooleanAttribute('noInkBar', handleInkBar);\n    defineBooleanAttribute('dynamicHeight', handleDynamicHeight);\n    defineBooleanAttribute('noPagination');\n    defineBooleanAttribute('swipeContent');\n    defineBooleanAttribute('autoselect');\n    defineBooleanAttribute('noSelectClick');\n    defineBooleanAttribute('centerTabs', handleCenterTabs);\n    defineBooleanAttribute('enableDisconnect');\n\n    // Define public properties\n    ctrl.scope             = $scope;\n    ctrl.parent            = $scope.$parent;\n    ctrl.tabs              = [];\n    ctrl.lastSelectedIndex = null;\n    ctrl.hasFocus          = false;\n    ctrl.styleTabItemFocus = false;\n    ctrl.shouldCenterTabs  = shouldCenterTabs();\n    ctrl.tabContentPrefix  = 'tab-content-';\n    ctrl.navigationHint = 'Use the left and right arrow keys to navigate between tabs';\n\n    // Setup the tabs controller after all bindings are available.\n    setupTabsController();\n  }\n\n  /**\n   * Perform setup for the controller, setup events and watcher(s)\n   */\n  function setupTabsController () {\n    ctrl.selectedIndex = ctrl.selectedIndex || 0;\n    compileTemplate();\n    configureWatchers();\n    bindEvents();\n    $mdTheming($element);\n    $mdUtil.nextTick(function () {\n      updateHeightFromContent();\n      adjustOffset();\n      updateInkBarStyles();\n      ctrl.tabs[ ctrl.selectedIndex ] && ctrl.tabs[ ctrl.selectedIndex ].scope.select();\n      loaded = true;\n      updatePagination();\n    });\n  }\n\n  /**\n   * Compiles the template provided by the user.  This is passed as an attribute from the tabs\n   * directive's template function.\n   */\n  function compileTemplate () {\n    var template = $attrs.$mdTabsTemplate,\n        element  = angular.element($element[0].querySelector('md-tab-data'));\n\n    element.html(template);\n    $compile(element.contents())(ctrl.parent);\n    delete $attrs.$mdTabsTemplate;\n  }\n\n  /**\n   * Binds events used by the tabs component.\n   */\n  function bindEvents () {\n    angular.element($window).on('resize', handleWindowResize);\n    $scope.$on('$destroy', cleanup);\n  }\n\n  /**\n   * Configure watcher(s) used by Tabs\n   */\n  function configureWatchers () {\n    $scope.$watch('$mdTabsCtrl.selectedIndex', handleSelectedIndexChange);\n  }\n\n  /**\n   * Creates a one-way binding manually rather than relying on AngularJS's isolated scope\n   * @param key\n   * @param handler\n   */\n  function defineOneWayBinding (key, handler) {\n    var attr = $attrs.$normalize('md-' + key);\n    if (handler) defineProperty(key, handler);\n    $attrs.$observe(attr, function (newValue) { ctrl[ key ] = newValue; });\n  }\n\n  /**\n   * Defines boolean attributes with default value set to true. I.e. md-stretch-tabs with no value\n   * will be treated as being truthy.\n   * @param {string} key\n   * @param {Function=} handler\n   */\n  function defineBooleanAttribute (key, handler) {\n    var attr = $attrs.$normalize('md-' + key);\n    if (handler) defineProperty(key, handler, undefined);\n    if ($attrs.hasOwnProperty(attr)) updateValue($attrs[attr]);\n    $attrs.$observe(attr, updateValue);\n    function updateValue (newValue) {\n      ctrl[ key ] = newValue !== 'false';\n    }\n  }\n\n  /**\n   * Remove any events defined by this controller\n   */\n  function cleanup () {\n    destroyed = true;\n    angular.element($window).off('resize', handleWindowResize);\n  }\n\n  // Change handlers\n\n  /**\n   * Toggles stretch tabs class and updates inkbar when tab stretching changes.\n   */\n  function handleStretchTabs () {\n    var elements = getElements();\n    angular.element(elements.wrapper).toggleClass('md-stretch-tabs', shouldStretchTabs());\n    updateInkBarStyles();\n  }\n\n  /**\n   * Update the value of ctrl.shouldCenterTabs.\n   */\n  function handleCenterTabs () {\n    ctrl.shouldCenterTabs = shouldCenterTabs();\n  }\n\n  /**\n   * @param {number} newWidth new max tab width in pixels\n   * @param {number} oldWidth previous max tab width in pixels\n   */\n  function handleMaxTabWidth (newWidth, oldWidth) {\n    if (newWidth !== oldWidth) {\n      var elements = getElements();\n\n      // Set the max width for the real tabs\n      angular.forEach(elements.tabs, function(tab) {\n        tab.style.maxWidth = newWidth + 'px';\n      });\n\n      // Set the max width for the dummy tabs too\n      angular.forEach(elements.dummies, function(tab) {\n        tab.style.maxWidth = newWidth + 'px';\n      });\n\n      $mdUtil.nextTick(ctrl.updateInkBarStyles);\n    }\n  }\n\n  function handleShouldPaginate (newValue, oldValue) {\n    if (newValue !== oldValue) {\n      ctrl.maxTabWidth      = getMaxTabWidth();\n      ctrl.shouldCenterTabs = shouldCenterTabs();\n      $mdUtil.nextTick(function () {\n        ctrl.maxTabWidth = getMaxTabWidth();\n        adjustOffset(ctrl.selectedIndex);\n      });\n    }\n  }\n\n  /**\n   * Add/remove the `md-no-tab-content` class depending on `ctrl.hasContent`\n   * @param {boolean} hasContent\n   */\n  function handleHasContent (hasContent) {\n    $element[ hasContent ? 'removeClass' : 'addClass' ]('md-no-tab-content');\n  }\n\n  /**\n   * Apply ctrl.offsetLeft to the paging element when it changes\n   * @param {string|number} left\n   */\n  function handleOffsetChange (left) {\n    var newValue = ((ctrl.shouldCenterTabs || isRtl() ? '' : '-') + left + 'px');\n\n    // Fix double-negative which can happen with RTL support\n    newValue = newValue.replace('--', '');\n\n    angular.element(getElements().paging).css($mdConstant.CSS.TRANSFORM,\n                                              'translate(' + newValue + ', 0)');\n    $scope.$broadcast('$mdTabsPaginationChanged');\n  }\n\n  /**\n   * Update the UI whenever `ctrl.focusIndex` is updated\n   * @param {number} newIndex\n   * @param {number} oldIndex\n   */\n  function handleFocusIndexChange (newIndex, oldIndex) {\n    if (newIndex === oldIndex) return;\n    if (!getElements().tabs[ newIndex ]) return;\n    adjustOffset();\n    redirectFocus();\n  }\n\n  /**\n   * Update the UI whenever the selected index changes. Calls user-defined select/deselect methods.\n   * @param {number} newValue selected index's new value\n   * @param {number} oldValue selected index's previous value\n   */\n  function handleSelectedIndexChange (newValue, oldValue) {\n    if (newValue === oldValue) return;\n\n    ctrl.selectedIndex     = getNearestSafeIndex(newValue);\n    ctrl.lastSelectedIndex = oldValue;\n    ctrl.updateInkBarStyles();\n    updateHeightFromContent();\n    adjustOffset(newValue);\n    $scope.$broadcast('$mdTabsChanged');\n    ctrl.tabs[ oldValue ] && ctrl.tabs[ oldValue ].scope.deselect();\n    ctrl.tabs[ newValue ] && ctrl.tabs[ newValue ].scope.select();\n  }\n\n  function getTabElementIndex(tabEl){\n    var tabs = $element[0].getElementsByTagName('md-tab');\n    return Array.prototype.indexOf.call(tabs, tabEl[0]);\n  }\n\n  /**\n   * Queues up a call to `handleWindowResize` when a resize occurs while the tabs component is\n   * hidden.\n   */\n  function handleResizeWhenVisible () {\n    // if there is already a watcher waiting for resize, do nothing\n    if (handleResizeWhenVisible.watcher) return;\n    // otherwise, we will abuse the $watch function to check for visible\n    handleResizeWhenVisible.watcher = $scope.$watch(function () {\n      // since we are checking for DOM size, we use $mdUtil.nextTick() to wait for after the DOM updates\n      $mdUtil.nextTick(function () {\n        // if the watcher has already run (ie. multiple digests in one cycle), do nothing\n        if (!handleResizeWhenVisible.watcher) return;\n\n        if ($element.prop('offsetParent')) {\n          handleResizeWhenVisible.watcher();\n          handleResizeWhenVisible.watcher = null;\n\n          handleWindowResize();\n        }\n      }, false);\n    });\n  }\n\n  // Event handlers / actions\n\n  /**\n   * Handle user keyboard interactions\n   * @param {KeyboardEvent} event keydown event\n   */\n  function keydown (event) {\n    switch (event.keyCode) {\n      case $mdConstant.KEY_CODE.LEFT_ARROW:\n        event.preventDefault();\n        incrementIndex(-1, true);\n        break;\n      case $mdConstant.KEY_CODE.RIGHT_ARROW:\n        event.preventDefault();\n        incrementIndex(1, true);\n        break;\n      case $mdConstant.KEY_CODE.SPACE:\n      case $mdConstant.KEY_CODE.ENTER:\n        event.preventDefault();\n        if (!locked) select(ctrl.focusIndex);\n        break;\n      case $mdConstant.KEY_CODE.TAB:\n        // On tabbing out of the tablist, reset hasFocus to reset ng-focused and\n        // its md-focused class if the focused tab is not the active tab.\n        if (ctrl.focusIndex !== ctrl.selectedIndex) {\n          ctrl.focusIndex = ctrl.selectedIndex;\n        }\n        break;\n    }\n  }\n\n  /**\n   * Update the selected index. Triggers a click event on the original `md-tab` element in order\n   * to fire user-added click events if canSkipClick or `md-no-select-click` are false.\n   * @param index\n   * @param canSkipClick Optionally allow not firing the click event if `md-no-select-click` is also true.\n   */\n  function select (index, canSkipClick) {\n    if (!locked) ctrl.focusIndex = ctrl.selectedIndex = index;\n    // skip the click event if noSelectClick is enabled\n    if (canSkipClick && ctrl.noSelectClick) return;\n    // nextTick is required to prevent errors in user-defined click events\n    $mdUtil.nextTick(function () {\n      ctrl.tabs[ index ].element.triggerHandler('click');\n    }, false);\n  }\n\n  /**\n   * When pagination is on, this makes sure the selected index is in view.\n   * @param {WheelEvent} event\n   */\n  function scroll (event) {\n    if (!ctrl.shouldPaginate) return;\n    event.preventDefault();\n    if (event.deltaY) {\n      ctrl.offsetLeft = fixOffset(ctrl.offsetLeft + event.deltaY);\n    } else if (event.deltaX) {\n      ctrl.offsetLeft = fixOffset(ctrl.offsetLeft + event.deltaX);\n    }\n  }\n\n  /**\n   * Slides the tabs over approximately one page forward.\n   */\n  function nextPage () {\n    if (!ctrl.canPageForward()) { return; }\n\n    var newOffset = MdTabsPaginationService.increasePageOffset(getElements(), ctrl.offsetLeft);\n\n    ctrl.offsetLeft = fixOffset(newOffset);\n  }\n\n  /**\n   * Slides the tabs over approximately one page backward.\n   */\n  function previousPage () {\n    if (!ctrl.canPageBack()) { return; }\n\n    var newOffset = MdTabsPaginationService.decreasePageOffset(getElements(), ctrl.offsetLeft);\n\n    // Set the new offset\n    ctrl.offsetLeft = fixOffset(newOffset);\n  }\n\n  /**\n   * Update size calculations when the window is resized.\n   */\n  function handleWindowResize () {\n    ctrl.lastSelectedIndex = ctrl.selectedIndex;\n    ctrl.offsetLeft        = fixOffset(ctrl.offsetLeft);\n\n    $mdUtil.nextTick(function () {\n      ctrl.updateInkBarStyles();\n      updatePagination();\n    });\n  }\n\n  /**\n   * Hides or shows the tabs ink bar.\n   * @param {boolean} hide A Boolean (not just truthy/falsy) value to determine whether the class\n   * should be added or removed.\n   */\n  function handleInkBar (hide) {\n    angular.element(getElements().inkBar).toggleClass('ng-hide', hide);\n  }\n\n  /**\n   * Enables or disables tabs dynamic height.\n   * @param {boolean} value A Boolean (not just truthy/falsy) value to determine whether the class\n   * should be added or removed.\n   */\n  function handleDynamicHeight (value) {\n    $element.toggleClass('md-dynamic-height', value);\n  }\n\n  /**\n   * Remove a tab from the data and select the nearest valid tab.\n   * @param {Object} tabData tab to remove\n   */\n  function removeTab (tabData) {\n    if (destroyed) return;\n    var selectedIndex = ctrl.selectedIndex,\n        tab           = ctrl.tabs.splice(tabData.getIndex(), 1)[ 0 ];\n    refreshIndex();\n    // when removing a tab, if the selected index did not change, we have to manually trigger the\n    //   tab select/deselect events\n    if (ctrl.selectedIndex === selectedIndex) {\n      tab.scope.deselect();\n      ctrl.tabs[ ctrl.selectedIndex ] && ctrl.tabs[ ctrl.selectedIndex ].scope.select();\n    }\n    $mdUtil.nextTick(function () {\n      updatePagination();\n      ctrl.offsetLeft = fixOffset(ctrl.offsetLeft);\n    });\n  }\n\n  /**\n   * Create an entry in the tabs array for a new tab at the specified index.\n   * @param {Object} tabData tab to insert\n   * @param {number} index location to insert the new tab\n   * @returns {Object} the inserted tab\n   */\n  function insertTab (tabData, index) {\n    var hasLoaded = loaded;\n    var proto = {\n          getIndex:     function () { return ctrl.tabs.indexOf(tab); },\n          isActive:     function () { return this.getIndex() === ctrl.selectedIndex; },\n          isLeft:       function () { return this.getIndex() < ctrl.selectedIndex; },\n          isRight:      function () { return this.getIndex() > ctrl.selectedIndex; },\n          shouldRender: function () { return ctrl.dynamicHeight || this.isActive(); },\n          hasFocus:     function () {\n            return ctrl.styleTabItemFocus\n                && ctrl.hasFocus && this.getIndex() === ctrl.focusIndex;\n          },\n          id:           $mdUtil.nextUid(),\n          hasContent: !!(tabData.template && tabData.template.trim())\n    };\n    var tab = angular.extend(proto, tabData);\n\n    if (angular.isDefined(index)) {\n      ctrl.tabs.splice(index, 0, tab);\n    } else {\n      ctrl.tabs.push(tab);\n    }\n    processQueue();\n    updateHasContent();\n\n    $mdUtil.nextTick(function () {\n      updatePagination();\n      setAriaControls(tab);\n\n      // if autoselect is enabled, select the newly added tab\n      if (hasLoaded && ctrl.autoselect) {\n        $mdUtil.nextTick(function () {\n          $mdUtil.nextTick(function () { select(ctrl.tabs.indexOf(tab)); });\n        });\n      }\n    });\n    return tab;\n  }\n\n  // Getter methods\n\n  /**\n   * Gathers references to all of the DOM elements used by this controller.\n   * @returns {Object}\n   */\n  function getElements () {\n    var elements = {};\n    var node = $element[0];\n\n    // gather tab bar elements\n    elements.wrapper = node.querySelector('md-tabs-wrapper');\n    elements.canvas  = elements.wrapper.querySelector('md-tabs-canvas');\n    elements.paging  = elements.canvas.querySelector('md-pagination-wrapper');\n    elements.inkBar  = elements.paging.querySelector('md-ink-bar');\n    elements.nextButton = node.querySelector('md-next-button');\n    elements.prevButton = node.querySelector('md-prev-button');\n\n    elements.contents = node.querySelectorAll('md-tabs-content-wrapper > md-tab-content');\n    elements.tabs    = elements.paging.querySelectorAll('md-tab-item');\n    elements.dummies = elements.canvas.querySelectorAll('md-dummy-tab');\n\n    return elements;\n  }\n\n  /**\n   * Determines whether or not the left pagination arrow should be enabled.\n   * @returns {boolean}\n   */\n  function canPageBack () {\n    // This works for both LTR and RTL\n    return ctrl.offsetLeft > 0;\n  }\n\n  /**\n   * Determines whether or not the right pagination arrow should be enabled.\n   * @returns {*|boolean}\n   */\n  function canPageForward () {\n    var elements = getElements();\n    var lastTab = elements.tabs[ elements.tabs.length - 1 ];\n\n    if (isRtl()) {\n      return ctrl.offsetLeft < elements.paging.offsetWidth - elements.canvas.offsetWidth;\n    }\n\n    return lastTab && lastTab.offsetLeft + lastTab.offsetWidth > elements.canvas.clientWidth +\n        ctrl.offsetLeft;\n  }\n\n  /**\n   * Returns currently focused tab item's element ID\n   */\n  function getFocusedTabId() {\n    var focusedTab = ctrl.tabs[ctrl.focusIndex];\n    if (!focusedTab || !focusedTab.id) {\n      return null;\n    }\n    return 'tab-item-' + focusedTab.id;\n  }\n\n  /**\n   * Determines if the UI should stretch the tabs to fill the available space.\n   * @returns {*}\n   */\n  function shouldStretchTabs () {\n    switch (ctrl.stretchTabs) {\n      case 'always':\n        return true;\n      case 'never':\n        return false;\n      default:\n        return !ctrl.shouldPaginate\n            && $window.matchMedia('(max-width: 600px)').matches;\n    }\n  }\n\n  /**\n   * Determines if the tabs should appear centered.\n   * @returns {boolean}\n   */\n  function shouldCenterTabs () {\n    return ctrl.centerTabs && !ctrl.shouldPaginate;\n  }\n\n  /**\n   * Determines if pagination is necessary to display the tabs within the available space.\n   * @returns {boolean} true if pagination is necessary, false otherwise\n   */\n  function shouldPaginate () {\n    var shouldPaginate;\n    if (ctrl.noPagination || !loaded) return false;\n    var canvasWidth = $element.prop('clientWidth');\n\n    angular.forEach(getElements().tabs, function (tab) {\n      canvasWidth -= tab.offsetWidth;\n    });\n\n    shouldPaginate = canvasWidth < 0;\n    // Work around width calculation issues on IE11 when pagination is enabled.\n    // Don't do this on other browsers because it breaks scroll to new tab animation.\n    if ($mdUtil.msie) {\n      if (shouldPaginate) {\n        getElements().paging.style.width = '999999px';\n      } else {\n        getElements().paging.style.width = undefined;\n      }\n    }\n    return shouldPaginate;\n  }\n\n  /**\n   * Finds the nearest tab index that is available. This is primarily used for when the active\n   * tab is removed.\n   * @param newIndex\n   * @returns {*}\n   */\n  function getNearestSafeIndex (newIndex) {\n    if (newIndex === -1) return -1;\n    var maxOffset = Math.max(ctrl.tabs.length - newIndex, newIndex),\n        i, tab;\n    for (i = 0; i <= maxOffset; i++) {\n      tab = ctrl.tabs[ newIndex + i ];\n      if (tab && (tab.scope.disabled !== true)) return tab.getIndex();\n      tab = ctrl.tabs[ newIndex - i ];\n      if (tab && (tab.scope.disabled !== true)) return tab.getIndex();\n    }\n    return newIndex;\n  }\n\n  // Utility methods\n\n  /**\n   * Defines a property using a getter and setter in order to trigger a change handler without\n   * using `$watch` to observe changes.\n   * @param {PropertyKey} key\n   * @param {Function} handler\n   * @param {any} value\n   */\n  function defineProperty (key, handler, value) {\n    Object.defineProperty(ctrl, key, {\n      get: function () { return value; },\n      set: function (newValue) {\n        var oldValue = value;\n        value        = newValue;\n        handler && handler(newValue, oldValue);\n      }\n    });\n  }\n\n  /**\n   * Updates whether or not pagination should be displayed.\n   */\n  function updatePagination () {\n    ctrl.maxTabWidth = getMaxTabWidth();\n    ctrl.shouldPaginate = shouldPaginate();\n  }\n\n  /**\n   * @param {Array<HTMLElement>} tabs tab item elements for use in computing total width\n   * @returns {number} the width of the tabs in the specified array in pixels\n   */\n  function calcTabsWidth(tabs) {\n    var width = 0;\n\n    angular.forEach(tabs, function (tab) {\n      // Uses the larger value between `getBoundingClientRect().width` and `offsetWidth`.  This\n      // prevents `offsetWidth` value from being rounded down and causing wrapping issues, but\n      // also handles scenarios where `getBoundingClientRect()` is inaccurate (ie. tabs inside\n      // of a dialog).\n      width += Math.max(tab.offsetWidth, tab.getBoundingClientRect().width);\n    });\n\n    return Math.ceil(width);\n  }\n\n  /**\n   * @returns {number} either the max width as constrained by the container or the max width from\n   * the 2017 version of the Material Design spec.\n   */\n  function getMaxTabWidth() {\n    var elements = getElements(),\n      containerWidth = elements.canvas.clientWidth,\n\n      // See https://material.io/archive/guidelines/components/tabs.html#tabs-specs\n      specMax = 264;\n\n    // Do the spec maximum, or the canvas width; whichever is *smaller* (tabs larger than the canvas\n    // width can break the pagination) but not less than 0\n    return Math.max(0, Math.min(containerWidth - 1, specMax));\n  }\n\n  /**\n   * Re-orders the tabs and updates the selected and focus indexes to their new positions.\n   * This is triggered by `tabDirective.js` when the user's tabs have been re-ordered.\n   */\n  function updateTabOrder () {\n    var selectedItem   = ctrl.tabs[ ctrl.selectedIndex ],\n        focusItem      = ctrl.tabs[ ctrl.focusIndex ];\n    ctrl.tabs          = ctrl.tabs.sort(function (a, b) {\n      return a.index - b.index;\n    });\n    ctrl.selectedIndex = ctrl.tabs.indexOf(selectedItem);\n    ctrl.focusIndex    = ctrl.tabs.indexOf(focusItem);\n  }\n\n  /**\n   * This moves the selected or focus index left or right. This is used by the keydown handler.\n   * @param {number} inc amount to increment\n   * @param {boolean} focus true to increment the focus index, false to increment the selected index\n   */\n  function incrementIndex (inc, focus) {\n    var newIndex,\n        key   = focus ? 'focusIndex' : 'selectedIndex',\n        index = ctrl[ key ];\n    for (newIndex = index + inc;\n         ctrl.tabs[ newIndex ] && ctrl.tabs[ newIndex ].scope.disabled;\n         newIndex += inc) { /* do nothing */ }\n\n    newIndex = (index + inc + ctrl.tabs.length) % ctrl.tabs.length;\n\n    if (ctrl.tabs[ newIndex ]) {\n      ctrl[ key ] = newIndex;\n    }\n  }\n\n  /**\n   * This is used to forward focus to tab container elements. This method is necessary to avoid\n   * animation issues when attempting to focus an item that is out of view.\n   */\n  function redirectFocus () {\n    ctrl.styleTabItemFocus = ($mdInteraction.getLastInteractionType() === 'keyboard');\n    var tabToFocus = getElements().tabs[ctrl.focusIndex];\n    if (tabToFocus) {\n      tabToFocus.focus();\n    }\n  }\n\n  /**\n   * Forces the pagination to move the focused tab into view.\n   * @param {number=} index of tab to have its offset adjusted\n   */\n  function adjustOffset (index) {\n    var elements = getElements();\n\n    if (!angular.isNumber(index)) index = ctrl.focusIndex;\n    if (!elements.tabs[ index ]) return;\n    if (ctrl.shouldCenterTabs) return;\n    var tab         = elements.tabs[ index ],\n        left        = tab.offsetLeft,\n        right       = tab.offsetWidth + left,\n        extraOffset = 32;\n\n    // If we are selecting the first tab (in LTR and RTL), always set the offset to 0\n    if (index === 0) {\n      ctrl.offsetLeft = 0;\n      return;\n    }\n\n    if (isRtl()) {\n      var tabWidthsBefore = calcTabsWidth(Array.prototype.slice.call(elements.tabs, 0, index));\n      var tabWidthsIncluding = calcTabsWidth(Array.prototype.slice.call(elements.tabs, 0, index + 1));\n\n      ctrl.offsetLeft = Math.min(ctrl.offsetLeft, fixOffset(tabWidthsBefore));\n      ctrl.offsetLeft = Math.max(ctrl.offsetLeft, fixOffset(tabWidthsIncluding - elements.canvas.clientWidth));\n    } else {\n      ctrl.offsetLeft = Math.max(ctrl.offsetLeft, fixOffset(right - elements.canvas.clientWidth + extraOffset));\n      ctrl.offsetLeft = Math.min(ctrl.offsetLeft, fixOffset(left));\n    }\n  }\n\n  /**\n   * Iterates through all queued functions and clears the queue. This is used for functions that\n   * are called before the UI is ready, such as size calculations.\n   */\n  function processQueue () {\n    queue.forEach(function (func) { $mdUtil.nextTick(func); });\n    queue = [];\n  }\n\n  /**\n   * Determines if the tab content area is needed.\n   */\n  function updateHasContent () {\n    var hasContent = false;\n    var i;\n\n    for (i = 0; i < ctrl.tabs.length; i++) {\n      if (ctrl.tabs[i].hasContent) {\n        hasContent = true;\n        break;\n      }\n    }\n\n    ctrl.hasContent = hasContent;\n  }\n\n  /**\n   * Moves the indexes to their nearest valid values.\n   */\n  function refreshIndex () {\n    ctrl.selectedIndex = getNearestSafeIndex(ctrl.selectedIndex);\n    ctrl.focusIndex    = getNearestSafeIndex(ctrl.focusIndex);\n  }\n\n  /**\n   * Calculates the content height of the current tab.\n   * @returns {*}\n   */\n  function updateHeightFromContent () {\n    if (!ctrl.dynamicHeight) return $element.css('height', '');\n    if (!ctrl.tabs.length) return queue.push(updateHeightFromContent);\n\n    var elements = getElements();\n\n    var tabContent    = elements.contents[ ctrl.selectedIndex ],\n        contentHeight = tabContent ? tabContent.offsetHeight : 0,\n        tabsHeight    = elements.wrapper.offsetHeight,\n        newHeight     = contentHeight + tabsHeight,\n        currentHeight = $element.prop('clientHeight');\n\n    if (currentHeight === newHeight) return;\n\n    // Adjusts calculations for when the buttons are bottom-aligned since this relies on absolute\n    // positioning.  This should probably be cleaned up if a cleaner solution is possible.\n    if ($element.attr('md-align-tabs') === 'bottom') {\n      currentHeight -= tabsHeight;\n      newHeight -= tabsHeight;\n      // Need to include bottom border in these calculations\n      if ($element.attr('md-border-bottom') !== undefined) {\n        ++currentHeight;\n      }\n    }\n\n    // Lock during animation so the user can't change tabs\n    locked = true;\n\n    var fromHeight = { height: currentHeight + 'px' },\n        toHeight = { height: newHeight + 'px' };\n\n    // Set the height to the current, specific pixel height to fix a bug on iOS where the height\n    // first animates to 0, then back to the proper height causing a visual glitch\n    $element.css(fromHeight);\n\n    // Animate the height from the old to the new\n    $animateCss($element, {\n      from: fromHeight,\n      to: toHeight,\n      easing: 'cubic-bezier(0.35, 0, 0.25, 1)',\n      duration: 0.5\n    }).start().done(function () {\n      // Then (to fix the same iOS issue as above), disable transitions and remove the specific\n      // pixel height so the height can size with browser width/content changes, etc.\n      $element.css({\n        transition: 'none',\n        height: ''\n      });\n\n      // In the next tick, re-allow transitions (if we do it all at once, $element.css is \"smart\"\n      // enough to batch it for us instead of doing it immediately, which undoes the original\n      // transition: none)\n      $mdUtil.nextTick(function() {\n        $element.css('transition', '');\n      });\n\n      // And unlock so tab changes can occur\n      locked = false;\n    });\n  }\n\n  /**\n   * Repositions the ink bar to the selected tab.\n   * Parameters are used when calling itself recursively when md-center-tabs is used as we need to\n   * run two passes to properly center the tabs. These parameters ensure that we only run two passes\n   * and that we don't run indefinitely.\n   * @param {number=} previousTotalWidth previous width of pagination wrapper\n   * @param {number=} previousWidthOfTabItems previous width of all tab items\n   */\n  function updateInkBarStyles (previousTotalWidth, previousWidthOfTabItems) {\n    if (ctrl.noInkBar) {\n      return;\n    }\n    var elements = getElements();\n\n    if (!elements.tabs[ ctrl.selectedIndex ]) {\n      angular.element(elements.inkBar).css({ left: 'auto', right: 'auto' });\n      return;\n    }\n\n    if (!ctrl.tabs.length) {\n      queue.push(ctrl.updateInkBarStyles);\n      return;\n    }\n    // If the element is not visible, we will not be able to calculate sizes until it becomes\n    // visible. We should treat that as a resize event rather than just updating the ink bar.\n    if (!$element.prop('offsetParent')) {\n      handleResizeWhenVisible();\n      return;\n    }\n\n    var index      = ctrl.selectedIndex,\n        totalWidth = elements.paging.offsetWidth,\n        tab        = elements.tabs[ index ],\n        left       = tab.offsetLeft,\n        right      = totalWidth - left - tab.offsetWidth;\n\n    if (ctrl.shouldCenterTabs) {\n      // We need to use the same calculate process as in the pagination wrapper, to avoid rounding\n      // deviations.\n      var totalWidthOfTabItems = calcTabsWidth(elements.tabs);\n\n      if (totalWidth > totalWidthOfTabItems &&\n          previousTotalWidth !== totalWidth &&\n          previousWidthOfTabItems !== totalWidthOfTabItems) {\n        $timeout(updateInkBarStyles, 0, true, totalWidth, totalWidthOfTabItems);\n      }\n    }\n    updateInkBarClassName();\n    angular.element(elements.inkBar).css({ left: left + 'px', right: right + 'px' });\n  }\n\n  /**\n   * Adds left/right classes so that the ink bar will animate properly.\n   */\n  function updateInkBarClassName () {\n    var elements = getElements();\n    var newIndex = ctrl.selectedIndex,\n        oldIndex = ctrl.lastSelectedIndex,\n        ink      = angular.element(elements.inkBar);\n    if (!angular.isNumber(oldIndex)) return;\n    ink\n        .toggleClass('md-left', newIndex < oldIndex)\n        .toggleClass('md-right', newIndex > oldIndex);\n  }\n\n  /**\n   * Takes an offset value and makes sure that it is within the min/max allowed values.\n   * @param {number} value\n   * @returns {number}\n   */\n  function fixOffset (value) {\n    var elements = getElements();\n\n    if (!elements.tabs.length || !ctrl.shouldPaginate) return 0;\n\n    var lastTab    = elements.tabs[ elements.tabs.length - 1 ],\n        totalWidth = lastTab.offsetLeft + lastTab.offsetWidth;\n\n    if (isRtl()) {\n      value = Math.min(elements.paging.offsetWidth - elements.canvas.clientWidth, value);\n      value = Math.max(0, value);\n    } else {\n      value = Math.max(0, value);\n      value = Math.min(totalWidth - elements.canvas.clientWidth, value);\n    }\n\n    return value;\n  }\n\n  /**\n   * Attaches a ripple to the tab item element.\n   * @param scope\n   * @param element\n   */\n  function attachRipple (scope, element) {\n    var elements = getElements();\n    var options = { colorElement: angular.element(elements.inkBar) };\n    $mdTabInkRipple.attach(scope, element, options);\n  }\n\n  /**\n   * Sets the `aria-controls` attribute to the elements that correspond to the passed-in tab.\n   * @param tab\n   */\n  function setAriaControls (tab) {\n    if (tab.hasContent) {\n      var nodes = $element[0].querySelectorAll('[md-tab-id=\"' + tab.id + '\"]');\n      angular.element(nodes).attr('aria-controls', ctrl.tabContentPrefix + tab.id);\n    }\n  }\n\n  function isRtl() {\n    return $mdUtil.isRtl($attrs);\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc directive\n * @name mdTabs\n * @module material.components.tabs\n *\n * @restrict E\n *\n * @description\n * The `<md-tabs>` directive serves as the container for 1..n\n * <a ng-href=\"api/directive/mdTab\">`<md-tab>`</a> child directives.\n * In turn, the nested `<md-tab>` directive is used to specify a tab label for the\n * **header button** and <i>optional</i> tab view content that will be associated with each tab\n * button.\n *\n * Below is the markup for its simplest usage:\n *\n *  <hljs lang=\"html\">\n *  <md-tabs>\n *    <md-tab label=\"Tab #1\"></md-tab>\n *    <md-tab label=\"Tab #2\"></md-tab>\n *    <md-tab label=\"Tab #3\"></md-tab>\n *  </md-tabs>\n *  </hljs>\n *\n * Tabs support three (3) usage scenarios:\n *\n *  1. Tabs (buttons only)\n *  2. Tabs with internal view content\n *  3. Tabs with external view content\n *\n * **Tabs-only** support is useful when tab buttons are used for custom navigation regardless of any\n * other components, content, or views.\n *\n * <blockquote><b>Note:</b> If you are using the Tabs component for page-level navigation, please\n * use the <a ng-href=\"./api/directive/mdNavBar\">NavBar component</a> instead. It handles this\n * case a more natively and more performantly.</blockquote>\n *\n * **Tabs with internal views** are the traditional usage where each tab has associated view\n * content and the view switching is managed internally by the Tabs component.\n *\n * **Tabs with external view content** is often useful when content associated with each tab is\n * independently managed and data-binding notifications announce tab selection changes.\n *\n * Additional features include:\n *\n * *  Content can include any markup.\n * *  If a tab is disabled while active/selected, then the next tab will be auto-selected.\n *\n * ### Theming\n *\n * By default, tabs use your app's accent color for the selected tab's text and ink bar.\n *\n * You can use the theming classes to change the color of the `md-tabs` background:\n * * Applying `class=\"md-primary\"` will use your app's primary color for the background, your\n *   accent color for the ink bar, and your primary palette's contrast color for the text of the\n *   selected tab.\n *   * When using the `md-primary` class, you can add the `md-no-ink-bar-color` class to make the\n *     ink bar use your theme's primary contrast color instead of the accent color.\n * * Applying `class=\"md-accent\"` will use your app's accent color for the background and your\n *   accent palette's contrast color for the text and ink bar of the selected tab.\n * * Applying `class=\"md-warn\"` will use your app's warn color for the background and your\n *   warn palette's contrast color for the text and ink bar of the selected tab.\n *\n * ### Explanation of tab stretching\n *\n * Initially, tabs will have an inherent size.  This size will either be defined by how much space\n * is needed to accommodate their text or set by the user through CSS.\n * Calculations will be based on this size.\n *\n * On mobile devices, tabs will be expanded to fill the available horizontal space.\n * When this happens, all tabs will become the same size.\n *\n * On desktops, by default, stretching will never occur.\n *\n * This default behavior can be overridden through the `md-stretch-tabs` attribute.\n * Here is a table showing when stretching will occur:\n *\n * `md-stretch-tabs` | mobile    | desktop\n * ------------------|-----------|--------\n * `auto`            | stretched | ---\n * `always`          | stretched | stretched\n * `never`           | ---       | ---\n *\n * @param {number=} md-selected Index of the active/selected tab.\n * @param {expression=} md-no-ink-bar If `true` or no value, disables the selection ink bar.\n * @param {string=} md-align-tabs Attribute to indicate position of tab buttons: `bottom` or `top`;\n *  Default is `top`.\n * @param {string=} md-stretch-tabs Attribute to indicate whether or not to stretch tabs: `auto`,\n *  `always`, or `never`; Default is `auto`.\n * @param {expression=} md-dynamic-height If `true` or no value, the tab wrapper will resize based\n *  on the contents of the selected tab.\n * @param {boolean=} md-border-bottom If the attribute is present, shows a solid `1px` border\n *  between the tabs and their content.\n * @param {boolean=} md-center-tabs If the attribute is present, tabs will be centered provided\n *  there is no need for pagination.\n * @param {boolean=} md-no-pagination If the attribute is present, pagination will remain off.\n * @param {expression=} md-swipe-content When enabled, swipe gestures will be enabled for the content\n *  area to allow swiping between tabs.\n * @param {boolean=} md-enable-disconnect When enabled, scopes will be disconnected for tabs that\n *  are not being displayed. This provides a performance boost, but may also cause unexpected\n *  issues. It is not recommended for most users.\n * @param {boolean=} md-autoselect If the attribute is present, any tabs added after the initial\n *  load will be automatically selected.\n * @param {boolean=} md-no-select-click When true, click events will not be fired when the value of\n *  `md-active` on an `md-tab` changes. This is useful when using tabs with UI-Router's child\n *  states, as triggering a click event in that case can cause an extra tab change to occur.\n * @param {string=} md-navigation-hint Attribute to override the default `tablist` navigation hint\n *  that screen readers will announce to provide instructions for navigating between tabs. This is\n *  desirable when you want the hint to be in a different language. Default is \"Use the left and\n *  right arrow keys to navigate between tabs\".\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-tabs md-selected=\"selectedIndex\">\n *   <img ng-src=\"img/angular.png\" class=\"centered\" alt=\"Angular icon\">\n *   <md-tab\n *       ng-repeat=\"tab in tabs | orderBy:predicate:reversed\"\n *       md-on-select=\"onTabSelected(tab)\"\n *       md-on-deselect=\"announceDeselected(tab)\"\n *       ng-disabled=\"tab.disabled\">\n *     <md-tab-label>\n *       {{tab.title}}\n *       <img src=\"img/removeTab.png\" ng-click=\"removeTab(tab)\" class=\"delete\" alt=\"Remove tab\">\n *     </md-tab-label>\n *     <md-tab-body>\n *       {{tab.content}}\n *     </md-tab-body>\n *   </md-tab>\n * </md-tabs>\n * </hljs>\n *\n */\nMdTabs.$inject = [\"$$mdSvgRegistry\"];\nangular\n    .module('material.components.tabs')\n    .directive('mdTabs', MdTabs);\n\nfunction MdTabs ($$mdSvgRegistry) {\n  return {\n    scope:            {\n      navigationHint: '@?mdNavigationHint',\n      selectedIndex: '=?mdSelected'\n    },\n    template:         function (element, attr) {\n      attr.$mdTabsTemplate = element.html();\n      return '' +\n        '<md-tabs-wrapper> ' +\n          '<md-tab-data></md-tab-data> ' +\n          '<md-prev-button ' +\n              'tabindex=\"-1\" ' +\n              'role=\"button\" ' +\n              'aria-label=\"Previous Page\" ' +\n              'aria-disabled=\"{{!$mdTabsCtrl.canPageBack()}}\" ' +\n              'ng-class=\"{ \\'md-disabled\\': !$mdTabsCtrl.canPageBack() }\" ' +\n              'ng-if=\"$mdTabsCtrl.shouldPaginate\" ' +\n              'ng-click=\"$mdTabsCtrl.previousPage()\"> ' +\n            '<md-icon md-svg-src=\"'+ $$mdSvgRegistry.mdTabsArrow +'\"></md-icon> ' +\n          '</md-prev-button> ' +\n          '<md-next-button ' +\n              'tabindex=\"-1\" ' +\n              'role=\"button\" ' +\n              'aria-label=\"Next Page\" ' +\n              'aria-disabled=\"{{!$mdTabsCtrl.canPageForward()}}\" ' +\n              'ng-class=\"{ \\'md-disabled\\': !$mdTabsCtrl.canPageForward() }\" ' +\n              'ng-if=\"$mdTabsCtrl.shouldPaginate\" ' +\n              'ng-click=\"$mdTabsCtrl.nextPage()\"> ' +\n            '<md-icon md-svg-src=\"'+ $$mdSvgRegistry.mdTabsArrow +'\"></md-icon> ' +\n          '</md-next-button> ' +\n          '<md-tabs-canvas ' +\n              'tabindex=\"{{ $mdTabsCtrl.hasFocus ? -1 : 0 }}\" ' +\n              'ng-focus=\"$mdTabsCtrl.redirectFocus()\" ' +\n              'ng-class=\"{ ' +\n                  '\\'md-paginated\\': $mdTabsCtrl.shouldPaginate, ' +\n                  '\\'md-center-tabs\\': $mdTabsCtrl.shouldCenterTabs ' +\n              '}\" ' +\n              'ng-keydown=\"$mdTabsCtrl.keydown($event)\"> ' +\n            '<md-pagination-wrapper ' +\n                'ng-class=\"{ \\'md-center-tabs\\': $mdTabsCtrl.shouldCenterTabs }\" ' +\n                'md-tab-scroll=\"$mdTabsCtrl.scroll($event)\" ' +\n                'role=\"tablist\" ' +\n                'aria-label=\"{{::$mdTabsCtrl.navigationHint}}\">' +\n              '<md-tab-item ' +\n                  'tabindex=\"{{ tab.isActive() ? 0 : -1 }}\" ' +\n                  'class=\"md-tab {{::tab.scope.tabClass}}\" ' +\n                  'ng-repeat=\"tab in $mdTabsCtrl.tabs\" ' +\n                  'role=\"tab\" ' +\n                  'id=\"tab-item-{{::tab.id}}\" ' +\n                  'md-tab-id=\"{{::tab.id}}\" ' +\n                  'aria-selected=\"{{tab.isActive()}}\" ' +\n                  'aria-disabled=\"{{tab.scope.disabled || \\'false\\'}}\" ' +\n                  'ng-click=\"$mdTabsCtrl.select(tab.getIndex())\" ' +\n                  'ng-focus=\"$mdTabsCtrl.hasFocus = true\" ' +\n                  'ng-blur=\"$mdTabsCtrl.hasFocus = false\" ' +\n                  'ng-class=\"{ ' +\n                      '\\'md-active\\':    tab.isActive(), ' +\n                      '\\'md-focused\\':   tab.hasFocus(), ' +\n                      '\\'md-disabled\\':  tab.scope.disabled ' +\n                  '}\" ' +\n                  'ng-disabled=\"tab.scope.disabled\" ' +\n                  'md-swipe-left=\"$mdTabsCtrl.nextPage()\" ' +\n                  'md-swipe-right=\"$mdTabsCtrl.previousPage()\" ' +\n                  'md-tabs-template=\"::tab.label\" ' +\n                  'md-scope=\"::tab.parent\"></md-tab-item> ' +\n              '<md-ink-bar></md-ink-bar> ' +\n            '</md-pagination-wrapper> ' +\n            '<md-tabs-dummy-wrapper aria-hidden=\"true\" class=\"md-visually-hidden md-dummy-wrapper\"> ' +\n              '<md-dummy-tab ' +\n                  'class=\"md-tab\" ' +\n                  'tabindex=\"-1\" ' +\n                  'ng-focus=\"$mdTabsCtrl.hasFocus = true\" ' +\n                  'ng-blur=\"$mdTabsCtrl.hasFocus = false\" ' +\n                  'ng-repeat=\"tab in $mdTabsCtrl.tabs\" ' +\n                  'md-tabs-template=\"::tab.label\" ' +\n                  'md-scope=\"::tab.parent\"></md-dummy-tab> ' +\n            '</md-tabs-dummy-wrapper> ' +\n          '</md-tabs-canvas> ' +\n        '</md-tabs-wrapper> ' +\n        '<md-tabs-content-wrapper ng-show=\"$mdTabsCtrl.hasContent && $mdTabsCtrl.selectedIndex >= 0\" class=\"_md\"> ' +\n          '<md-tab-content ' +\n              'id=\"{{:: $mdTabsCtrl.tabContentPrefix + tab.id}}\" ' +\n              'class=\"_md\" ' +\n              'role=\"tabpanel\" ' +\n              'aria-labelledby=\"tab-item-{{::tab.id}}\" ' +\n              'md-swipe-left=\"$mdTabsCtrl.swipeContent && $mdTabsCtrl.incrementIndex(1)\" ' +\n              'md-swipe-right=\"$mdTabsCtrl.swipeContent && $mdTabsCtrl.incrementIndex(-1)\" ' +\n              'ng-if=\"tab.hasContent\" ' +\n              'ng-repeat=\"(index, tab) in $mdTabsCtrl.tabs\" ' +\n              'ng-class=\"{ ' +\n                '\\'md-no-transition\\': $mdTabsCtrl.lastSelectedIndex == null, ' +\n                '\\'md-active\\':        tab.isActive(), ' +\n                '\\'md-left\\':          tab.isLeft(), ' +\n                '\\'md-right\\':         tab.isRight(), ' +\n                '\\'md-no-scroll\\':     $mdTabsCtrl.dynamicHeight ' +\n              '}\"> ' +\n            '<div ' +\n                'md-tabs-template=\"::tab.template\" ' +\n                'md-connected-if=\"tab.isActive()\" ' +\n                'md-scope=\"::tab.parent\" ' +\n                'ng-if=\"$mdTabsCtrl.enableDisconnect || tab.shouldRender()\"></div> ' +\n          '</md-tab-content> ' +\n        '</md-tabs-content-wrapper>';\n    },\n    controller:       'MdTabsController',\n    controllerAs:     '$mdTabsCtrl',\n    bindToController: true\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n\nMdTabsDummyWrapper.$inject = [\"$mdUtil\", \"$window\"];angular\n  .module('material.components.tabs')\n  .directive('mdTabsDummyWrapper', MdTabsDummyWrapper);\n\n/**\n * @private\n *\n * @param $mdUtil\n * @param $window\n * @returns {{require: string, link: link}}\n * @constructor\n *\n * @ngInject\n */\nfunction MdTabsDummyWrapper ($mdUtil, $window) {\n  return {\n    require: '^?mdTabs',\n    link:    function link (scope, element, attr, ctrl) {\n      if (!ctrl) return;\n\n      var observer;\n      var disconnect;\n\n      var mutationCallback = function() {\n        ctrl.updatePagination();\n        ctrl.updateInkBarStyles();\n      };\n\n      if ('MutationObserver' in $window) {\n        var config = {\n          childList: true,\n          subtree: true,\n          // Per https://bugzilla.mozilla.org/show_bug.cgi?id=1138368, browsers will not fire\n          // the childList mutation, once a <span> element's innerText changes.\n          // The characterData of the <span> element will change.\n          characterData: true\n        };\n\n        observer = new MutationObserver(mutationCallback);\n        observer.observe(element[0], config);\n        disconnect = observer.disconnect.bind(observer);\n      } else {\n        var debounced = $mdUtil.debounce(mutationCallback, 15, null, false);\n\n        element.on('DOMSubtreeModified', debounced);\n        disconnect = element.off.bind(element, 'DOMSubtreeModified', debounced);\n      }\n\n      // Disconnect the observer\n      scope.$on('$destroy', function() {\n        disconnect();\n      });\n    }\n  };\n}\n\n})();\n(function(){\n\"use strict\";\n\n\nMdTabsTemplate.$inject = [\"$compile\", \"$mdUtil\"];angular\n    .module('material.components.tabs')\n    .directive('mdTabsTemplate', MdTabsTemplate);\n\nfunction MdTabsTemplate ($compile, $mdUtil) {\n  return {\n    restrict: 'A',\n    link:     link,\n    scope:    {\n      template:     '=mdTabsTemplate',\n      connected:    '=?mdConnectedIf',\n      compileScope: '=mdScope'\n    },\n    require:  '^?mdTabs'\n  };\n  function link (scope, element, attr, ctrl) {\n    if (!ctrl) return;\n\n    var compileScope = ctrl.enableDisconnect ? scope.compileScope.$new() : scope.compileScope;\n\n    element.html(scope.template);\n    $compile(element.contents())(compileScope);\n\n    return $mdUtil.nextTick(handleScope);\n\n    function handleScope () {\n      scope.$watch('connected', function (value) { value === false ? disconnect() : reconnect(); });\n      scope.$on('$destroy', reconnect);\n    }\n\n    function disconnect () {\n      if (ctrl.enableDisconnect) $mdUtil.disconnectScope(compileScope);\n    }\n\n    function reconnect () {\n      if (ctrl.enableDisconnect) $mdUtil.reconnectScope(compileScope);\n    }\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.toast\n * @description\n * Toast and Snackbar component.\n */\nMdToastDirective.$inject = [\"$mdToast\"];\nMdToastProvider.$inject = [\"$$interimElementProvider\"];\nangular.module('material.components.toast', [\n  'material.core',\n  'material.components.button'\n])\n  .directive('mdToast', MdToastDirective)\n  .provider('$mdToast', MdToastProvider);\n\n/* @ngInject */\nfunction MdToastDirective($mdToast) {\n  return {\n    restrict: 'E',\n    link: function postLink(scope, element) {\n      element.addClass('_md');     // private md component indicator for styling\n\n      // When navigation force destroys an interimElement, then\n      // listen and $destroy() that interim instance...\n      scope.$on('$destroy', function() {\n        $mdToast.destroy();\n      });\n    }\n  };\n}\n\n/**\n * @ngdoc service\n * @name $mdToast\n * @module material.components.toast\n *\n * @description\n * `$mdToast` is a service to build a toast notification on any position\n * on the screen with an optional duration, and provides a simple promise API.\n *\n * The toast will be always positioned at the `bottom`, when the screen size is\n * between `600px` and `959px` (`sm` breakpoint)\n *\n * ## Restrictions on custom toasts\n * - The toast's template must have an outer `<md-toast>` element.\n * - For a toast action, use element with class `md-action`.\n * - Add the class `md-capsule` for curved corners.\n *\n * ### Custom Presets\n * Developers are also able to create their own preset, which can be easily used without repeating\n * their options each time.\n *\n * <hljs lang=\"js\">\n *   $mdToastProvider.addPreset('testPreset', {\n *     options: function() {\n *       return {\n *         template:\n *           '<md-toast>' +\n *             '<div class=\"md-toast-content\">' +\n *               'This is a custom preset' +\n *             '</div>' +\n *           '</md-toast>',\n *         controllerAs: 'toast',\n *         bindToController: true\n *       };\n *     }\n *   });\n * </hljs>\n *\n * After you created your preset at config phase, you can easily access it.\n *\n * <hljs lang=\"js\">\n *   $mdToast.show(\n *     $mdToast.testPreset()\n *   );\n * </hljs>\n *\n * ## Parent container notes\n *\n * The toast is positioned using absolute positioning relative to its first non-static parent\n * container. Thus, if the requested parent container uses static positioning, we will temporarily\n * set its positioning to `relative` while the toast is visible and reset it when the toast is\n * hidden.\n *\n * Because of this, it is usually best to ensure that the parent container has a fixed height and\n * prevents scrolling by setting the `overflow: hidden;` style. Since the position is based off of\n * the parent's height, the toast may be mispositioned if you allow the parent to scroll.\n *\n * You can, however, have a scrollable element inside of the container; just make sure the\n * container itself does not scroll.\n *\n * <hljs lang=\"html\">\n * <div layout-fill id=\"toast-container\">\n *   <md-content>\n *     I can have lots of content and scroll!\n *   </md-content>\n * </div>\n * </hljs>\n *\n * @usage\n * <hljs lang=\"html\">\n * <div ng-controller=\"MyController\">\n *   <md-button ng-click=\"openToast()\">\n *     Open a Toast!\n *   </md-button>\n * </div>\n * </hljs>\n *\n * <hljs lang=\"js\">\n * var app = angular.module('app', ['ngMaterial']);\n * app.controller('MyController', function($scope, $mdToast) {\n *   $scope.openToast = function($event) {\n *     $mdToast.show($mdToast.simple().textContent('Hello!'));\n *     // Could also do $mdToast.showSimple('Hello');\n *   };\n * });\n * </hljs>\n */\n\n/**\n * @ngdoc method\n * @name $mdToast#showSimple\n *\n * @param {string} message The message to display inside the toast\n * @description\n * Convenience method which builds and shows a simple toast.\n *\n * @returns {promise} A promise that can be resolved with `$mdToast.hide()`.\n */\n\n/**\n * @ngdoc method\n * @name $mdToast#simple\n *\n * @description\n * Builds a preconfigured toast.\n *\n * @returns {obj} a `$mdToastPreset` with the following chainable configuration methods.\n *\n * _**Note:** These configuration methods are provided in addition to the methods provided by\n * the `build()` and `show()` methods below._\n *\n * <table class=\"md-api-table methods\">\n *    <thead>\n *      <tr>\n *        <th>Method</th>\n *        <th>Description</th>\n *      </tr>\n *    </thead>\n *    <tbody>\n *      <tr>\n *        <td>`.textContent(string)`</td>\n *        <td>Sets the toast content to the specified string</td>\n *      </tr>\n *      <tr>\n *        <td>`.action(string)`</td>\n *        <td>\n *          Adds an action button. <br/>\n *          If clicked, the promise (returned from `show()`) will resolve with the value `'ok'`;\n *          otherwise, it is resolved with `true` after a `hideDelay` timeout.\n *        </td>\n *      </tr>\n *      <tr>\n *        <td>`.actionKey(string)`</td>\n *        <td>\n *          Adds a hotkey for the action button to the page. <br/>\n *          If the `actionKey` and `Control` key are pressed, the toast's action will be triggered.\n *        </td>\n *      </tr>\n *      <tr>\n *        <td>`.actionHint(string)`</td>\n *        <td>\n *          Text that a screen reader will announce to let the user know how to activate the\n *          action. <br>\n *          If an `actionKey` is defined, this defaults to:\n *          'Press Control-\"`actionKey`\" to ' followed by the `action`.\n *        </td>\n *      </tr>\n *      <tr>\n *        <td>`.dismissHint(string)`</td>\n *        <td>\n *          Text that a screen reader will announce to let the user know how to dismiss the toast.\n *          <br>Defaults to: \"Press Escape to dismiss.\"\n *        </td>\n *      </tr>\n *      <tr>\n *        <td>`.highlightAction(boolean)`</td>\n *        <td>\n *          Whether or not the action button will have an additional highlight class.<br/>\n *          By default the `accent` color will be applied to the action button.\n *        </td>\n *      </tr>\n *      <tr>\n *        <td>`.highlightClass(string)`</td>\n *        <td>\n *          If set, the given class will be applied to the highlighted action button.<br/>\n *          This allows you to specify the highlight color easily. Highlight classes are\n *          `md-primary`, `md-warn`, and `md-accent`\n *        </td>\n *      </tr>\n *      <tr>\n *        <td>`.capsule(boolean)`</td>\n *        <td>\n *          Whether or not to add the `md-capsule` class to the toast to provide rounded corners\n *        </td>\n *      </tr>\n *      <tr>\n *        <td>`.theme(string)`</td>\n *        <td>\n *          Sets the theme on the toast to the requested theme. Default is `$mdThemingProvider`'s\n *          default.\n *        </td>\n *      </tr>\n *      <tr>\n *        <td>`.toastClass(string)`</td>\n *        <td>Sets a class on the toast element</td>\n *      </tr>\n *    </tbody>\n * </table>\n */\n\n/**\n * @ngdoc method\n * @name $mdToast#updateTextContent\n *\n * @description\n * Updates the content of an existing toast. Useful for updating things like counts, etc.\n */\n\n/**\n * @ngdoc method\n * @name $mdToast#build\n *\n * @description\n * Creates a custom `$mdToastPreset` that you can configure.\n *\n * @returns {obj} a `$mdToastPreset` with the chainable configuration methods for shows' options\n *   (see below).\n */\n\n/**\n * @ngdoc method\n * @name $mdToast#show\n *\n * @description Shows the toast.\n *\n * @param {Object} optionsOrPreset Either provide an `$mdToastPreset` returned from `simple()`\n * and `build()`, or an options object with the following properties:\n *\n *   - `templateUrl` - `{string=}`: The url of an html template file that will\n *     be used as the content of the toast. Restrictions: the template must\n *     have an outer `md-toast` element.\n *   - `template` - `{string=}`: Same as templateUrl, except this is an actual\n *     template string.\n *   - `autoWrap` - `{boolean=}`: Whether or not to automatically wrap the template content with a\n *     `<div class=\"md-toast-content\">` if one is not provided. Defaults to true. Can be disabled\n *     if you provide a custom toast directive.\n *   - `scope` - `{Object=}`: the scope to link the template / controller to. If none is specified,\n *     it will create a new child scope. This scope will be destroyed when the toast is removed\n *     unless `preserveScope` is set to true.\n *   - `preserveScope` - `{boolean=}`: whether to preserve the scope when the element is removed.\n *     Default is false\n *   - `hideDelay` - `{number=}`: The number of milliseconds the toast should stay active before\n *     automatically closing. Set to `0` or `false` to have the toast stay open until closed\n *     manually via an action in the toast, a hotkey, or a swipe gesture. For accessibility, toasts\n *     should not automatically close when they contain an action.<br>\n *     Defaults to: `3000`.\n *   - `position` - `{string=}`: Sets the position of the toast. <br/>\n *     Available: any combination of `'bottom'`, `'left'`, `'top'`, `'right'`, `'end'`, and\n *     `'start'`. The properties `'end'` and `'start'` are dynamic and can be used for RTL support.\n *     <br/>\n *     Default combination: `'bottom left'`.\n *   - `toastClass` - `{string=}`: A class to set on the toast element.\n *   - `controller` - `{string=}`: The controller to associate with this toast.\n *     The controller will be injected the local `$mdToast.hide()`, which is a function\n *     used to hide the toast.\n *   - `locals` - `{Object=}`: An object containing key/value pairs. The keys will be used as names\n *     of values to inject into the controller. For example, `locals: {three: 3}` would inject\n *     `three` into the controller with the value of 3.\n *   - `bindToController` - `{boolean=}`: bind the locals to the controller, instead of passing\n *     them in.\n *   - `resolve` - `{Object=}`: Similar to locals, except it takes promises as values\n *     and the toast will not open until the promises resolve.\n *   - `controllerAs` - `{string=}`: An alias to assign the controller to on the scope.\n *   - `parent` - `{element=}`: The element to append the toast to. Defaults to appending\n *     to the root element of the application.\n *\n * @returns {promise} A promise that can be resolved with `$mdToast.hide()`. `$mdToast.hide()` will\n * resolve either with the boolean value `true` or the value passed as an argument to\n * `$mdToast.hide()`.\n */\n\n/**\n * @ngdoc method\n * @name $mdToast#hide\n *\n * @description\n * Hide an existing toast and resolve the promise returned from `$mdToast.show()`.\n *\n * @param {*=} response An argument for the resolved promise.\n *\n * @returns {promise} A promise that is called when the existing element is removed from the DOM.\n * The promise is resolved with either the Boolean value `true` or the value passed as the\n * argument to `$mdToast.hide()`.\n */\n\nfunction MdToastProvider($$interimElementProvider) {\n  // Differentiate promise resolves: hide timeout (value == true) and hide action clicks\n  // (value == ok).\n  MdToastController.$inject = [\"$mdToast\", \"$scope\", \"$log\"];\n  toastDefaultOptions.$inject = [\"$animate\", \"$mdToast\", \"$mdUtil\", \"$mdMedia\", \"$document\", \"$q\"];\n  var ACTION_RESOLVE = 'ok';\n\n  var activeToastContent;\n  var $mdToast = $$interimElementProvider('$mdToast')\n    .setDefaults({\n      methods: ['position', 'hideDelay', 'capsule', 'parent', 'position', 'toastClass'],\n      options: toastDefaultOptions\n    })\n    .addPreset('simple', {\n      argOption: 'textContent',\n      methods: ['textContent', 'action', 'actionKey', 'actionHint', 'highlightAction',\n                'highlightClass', 'theme', 'parent', 'dismissHint'],\n      options: /* @ngInject */ [\"$mdToast\", \"$mdTheming\", function($mdToast, $mdTheming) {\n        return {\n          template:\n            '<md-toast md-theme=\"{{ toast.theme }}\" ng-class=\"{\\'md-capsule\\': toast.capsule}\">' +\n            '  <div class=\"md-toast-content\" aria-live=\"polite\" aria-relevant=\"all\">' +\n            '    <span class=\"md-toast-text\">' +\n            '      {{ toast.content }}' +\n            '    </span>' +\n            '    <span class=\"md-visually-hidden\">{{ toast.dismissHint }}</span>' +\n            '    <span class=\"md-visually-hidden\" ng-if=\"toast.action && toast.actionKey\">' +\n            '      {{ toast.actionHint }}' +\n            '    </span>' +\n            '    <md-button class=\"md-action\" ng-if=\"toast.action\" ng-click=\"toast.resolve()\" ' +\n            '               ng-class=\"highlightClasses\">' +\n            '      {{ toast.action }}' +\n            '    </md-button>' +\n            '  </div>' +\n            '</md-toast>',\n          controller: MdToastController,\n          theme: $mdTheming.defaultTheme(),\n          controllerAs: 'toast',\n          bindToController: true\n        };\n      }]\n    })\n    .addMethod('updateTextContent', updateTextContent);\n\n    function updateTextContent(newContent) {\n      activeToastContent = newContent;\n    }\n\n    return $mdToast;\n\n  /**\n   * Controller for the Toast interim elements.\n   * @ngInject\n   */\n  function MdToastController($mdToast, $scope, $log) {\n    // For compatibility with AngularJS 1.6+, we should always use the $onInit hook in\n    // interimElements. The $mdCompiler simulates the $onInit hook for all versions.\n    this.$onInit = function() {\n      var self = this;\n\n      if (self.highlightAction) {\n        $scope.highlightClasses = [\n          'md-highlight',\n          self.highlightClass\n        ];\n      }\n\n      // If an action is defined and no actionKey is specified, then log a warning.\n      if (self.action && !self.actionKey) {\n        $log.warn('Toasts with actions should define an actionKey for accessibility.',\n          'Details: https://material.angularjs.org/latest/api/service/$mdToast#mdtoast-simple');\n      }\n\n      if (self.actionKey && !self.actionHint) {\n        self.actionHint = 'Press Control-\"' + self.actionKey + '\" to ';\n      }\n\n      if (!self.dismissHint) {\n        self.dismissHint = 'Press Escape to dismiss.';\n      }\n\n      $scope.$watch(function() { return activeToastContent; }, function() {\n        self.content = activeToastContent;\n      });\n\n      this.resolve = function() {\n        $mdToast.hide(ACTION_RESOLVE);\n      };\n    };\n  }\n\n  /* @ngInject */\n  function toastDefaultOptions($animate, $mdToast, $mdUtil, $mdMedia, $document, $q) {\n    var SWIPE_EVENTS = '$md.swipeleft $md.swiperight $md.swipeup $md.swipedown';\n    return {\n      onShow: onShow,\n      onRemove: onRemove,\n      toastClass: '',\n      position: 'bottom left',\n      themable: true,\n      hideDelay: 3000,\n      autoWrap: true,\n      transformTemplate: function(template, options) {\n        var shouldAddWrapper = options.autoWrap && template && !/md-toast-content/g.test(template);\n\n        if (shouldAddWrapper) {\n          // Root element of template will be <md-toast>. We need to wrap all of its content inside\n          // of <div class=\"md-toast-content\">. All templates provided here should be static,\n          // developer-controlled content (meaning we're not attempting to guard against XSS).\n          var templateRoot = document.createElement('md-template');\n          templateRoot.innerHTML = template;\n\n          // Iterate through all root children, to detect possible md-toast directives.\n          for (var i = 0; i < templateRoot.children.length; i++) {\n            if (templateRoot.children[i].nodeName === 'MD-TOAST') {\n              var wrapper = angular.element('<div class=\"md-toast-content\">');\n\n              // Wrap the children of the `md-toast` directive in jqLite, to be able to append\n              // multiple nodes with the same execution.\n              wrapper.append(angular.element(templateRoot.children[i].childNodes));\n\n              // Append the new wrapped element to the `md-toast` directive.\n              templateRoot.children[i].appendChild(wrapper[0]);\n            }\n          }\n\n          // We have to return the innerHTML, because we do not want to have the `md-template`\n          // element to be the root element of our interimElement.\n          return templateRoot.innerHTML;\n        }\n\n        return template || '';\n      }\n    };\n\n    /**\n     * @param {{toast: {actionKey: string=}}=} scope\n     * @param {JQLite} element\n     * @param {Object.<string, string>} options\n     * @return {*}\n     */\n    function onShow(scope, element, options) {\n      activeToastContent = options.textContent;\n\n      var isSmScreen = !$mdMedia('gt-sm');\n\n      element = $mdUtil.extractElementByName(element, 'md-toast', true);\n      options.element = element;\n\n      options.onSwipe = function(ev) {\n        // Add the relevant swipe class to the element so it can animate correctly\n        var swipe = ev.type.replace('$md.','');\n        var direction = swipe.replace('swipe', '');\n\n        // If the swipe direction is down/up but the toast came from top/bottom don't fade away\n        // Unless the screen is small, then the toast always on bottom\n        if ((direction === 'down' && options.position.indexOf('top') !== -1 && !isSmScreen) ||\n            (direction === 'up' && (options.position.indexOf('bottom') !== -1 || isSmScreen))) {\n          return;\n        }\n\n        if ((direction === 'left' || direction === 'right') && isSmScreen) {\n          return;\n        }\n\n        element.addClass('md-' + swipe);\n        $mdUtil.nextTick($mdToast.cancel);\n      };\n      options.openClass = toastOpenClass(options.position);\n\n      element.addClass(options.toastClass);\n\n      // 'top left' -> 'md-top md-left'\n      options.parent.addClass(options.openClass);\n\n      // static is the default position\n      if ($mdUtil.hasComputedStyle(options.parent, 'position', 'static')) {\n        options.parent.css('position', 'relative');\n      }\n\n      setupActionKeyListener(scope.toast && scope.toast.actionKey ?\n        scope.toast.actionKey : undefined);\n\n      element.on(SWIPE_EVENTS, options.onSwipe);\n\n      var verticalPositionDefined = false;\n      var positionClasses = options.position.split(' ').map(function (position) {\n        if (position) {\n          var className = 'md-' + position;\n          if (className === 'md-top' || className === 'md-bottom') {\n            verticalPositionDefined = true;\n          }\n          return className;\n        }\n        return 'md-bottom';\n      });\n      // If only \"right\" or \"left\" are defined, default to a vertical position of \"bottom\"\n      // as documented.\n      if (!verticalPositionDefined) {\n        positionClasses.push('md-bottom');\n      }\n      element.addClass(isSmScreen ? 'md-bottom' : positionClasses.join(' '));\n\n      if (options.parent) {\n        options.parent.addClass('md-toast-animating');\n      }\n      return $animate.enter(element, options.parent).then(function() {\n        if (options.parent) {\n          options.parent.removeClass('md-toast-animating');\n        }\n      });\n    }\n\n    /**\n     * @param {Object} scope the toast's scope\n     * @param {JQLite} element the toast to be removed\n     * @param {Object} options\n     * @return {Promise<*>} a Promise to remove the element immediately or to animate it out.\n     */\n    function onRemove(scope, element, options) {\n      if (scope.toast && scope.toast.actionKey) {\n        removeActionKeyListener();\n      }\n      element.off(SWIPE_EVENTS, options.onSwipe);\n      if (options.parent) options.parent.addClass('md-toast-animating');\n      if (options.openClass) options.parent.removeClass(options.openClass);\n\n      // Don't run the leave animation if the element has already been destroyed.\n      return ((options.$destroy === true) ? $q.when(element.remove()) : $animate.leave(element))\n        .then(function () {\n          if (options.parent) options.parent.removeClass('md-toast-animating');\n          if ($mdUtil.hasComputedStyle(options.parent, 'position', 'static')) {\n            options.parent.css('position', '');\n          }\n        });\n    }\n\n    function toastOpenClass(position) {\n      // For mobile, always open full-width on bottom\n      if (!$mdMedia('gt-xs')) {\n        return 'md-toast-open-bottom';\n      }\n\n      return 'md-toast-open-' + (position.indexOf('top') > -1 ? 'top' : 'bottom');\n    }\n\n    /**\n     * @param {string} actionKey\n     */\n    function setupActionKeyListener(actionKey) {\n      /**\n       * @param {KeyboardEvent} event\n       */\n      var handleKeyDown = function(event) {\n        if (event.key === 'Escape') {\n          $mdToast.hide(false);\n        }\n        if (actionKey && event.key === actionKey && event.ctrlKey) {\n          $mdToast.hide(ACTION_RESOLVE);\n        }\n      };\n      $document.on('keydown', handleKeyDown);\n    }\n\n    function removeActionKeyListener() {\n      $document.off('keydown');\n    }\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.toolbar\n */\nmdToolbarDirective.$inject = [\"$$rAF\", \"$mdConstant\", \"$mdUtil\", \"$mdTheming\", \"$animate\", \"$timeout\"];\nangular.module('material.components.toolbar', [\n  'material.core',\n  'material.components.content'\n])\n  .directive('mdToolbar', mdToolbarDirective);\n\n/**\n * @ngdoc directive\n * @name mdToolbar\n * @module material.components.toolbar\n * @restrict E\n * @description\n * `md-toolbar` is used to place a toolbar in your app.\n *\n * Toolbars are usually used above a content area to display the title of the\n * current page, and show relevant action buttons for that page.\n *\n * You can change the height of the toolbar by adding either the\n * `md-medium-tall` or `md-tall` class to the toolbar.\n *\n * @usage\n * <hljs lang=\"html\">\n * <div layout=\"column\" layout-fill>\n *   <md-toolbar>\n *\n *     <div class=\"md-toolbar-tools\">\n *       <h2 md-truncate flex>My App's Title</h2>\n *\n *       <md-button>\n *         Right Bar Button\n *       </md-button>\n *     </div>\n *\n *   </md-toolbar>\n *   <md-content>\n *     Hello!\n *   </md-content>\n * </div>\n * </hljs>\n *\n * <i><b>Note:</b> The code above shows usage with the `md-truncate` component which provides an\n * ellipsis if the title is longer than the width of the Toolbar.</i>\n *\n * ## CSS & Styles\n *\n * The `<md-toolbar>` provides a few custom CSS classes that you may use to enhance the\n * functionality of your toolbar.\n *\n * <div>\n * <docs-css-api-table>\n *\n *   <docs-css-selector code=\"md-toolbar .md-toolbar-tools\">\n *     The `md-toolbar-tools` class provides quite a bit of automatic styling for your toolbar\n *     buttons and text. When applied, it will center the buttons and text vertically for you.\n *   </docs-css-selector>\n *\n * </docs-css-api-table>\n * </div>\n *\n * ### Private Classes\n *\n * Currently, the only private class is the `md-toolbar-transitions` class. All other classes are\n * considered public.\n *\n * @param {boolean=} md-scroll-shrink Whether the header should shrink away as\n * the user scrolls down, and reveal itself as the user scrolls up.\n *\n * _**Note (1):** for scrollShrink to work, the toolbar must be a sibling of a\n * `md-content` element, placed before it. See the scroll shrink demo._\n *\n * _**Note (2):** The `md-scroll-shrink` attribute is only parsed on component\n * initialization, it does not watch for scope changes._\n *\n *\n * @param {number=} md-shrink-speed-factor How much to change the speed of the toolbar's\n * shrinking by. For example, if 0.25 is given then the toolbar will shrink\n * at one fourth the rate at which the user scrolls down. Default 0.5.\n *\n */\n\nfunction mdToolbarDirective($$rAF, $mdConstant, $mdUtil, $mdTheming, $animate, $timeout) {\n  var translateY = angular.bind(null, $mdUtil.supplant, 'translate3d(0,{0}px,0)');\n\n  return {\n    template: '',\n    restrict: 'E',\n\n    link: function(scope, element, attr) {\n\n      element.addClass('_md');     // private md component indicator for styling\n      $mdTheming(element);\n\n      $mdUtil.nextTick(function () {\n        element.addClass('_md-toolbar-transitions');     // adding toolbar transitions after digest\n      }, false);\n\n      if (angular.isDefined(attr.mdScrollShrink)) {\n        setupScrollShrink();\n      }\n\n      function setupScrollShrink() {\n\n        var toolbarHeight;\n        var contentElement;\n        var disableScrollShrink = angular.noop;\n\n        // Current \"y\" position of scroll\n        // Store the last scroll top position\n        var y = 0;\n        var prevScrollTop = 0;\n        var shrinkSpeedFactor = attr.mdShrinkSpeedFactor || 0.5;\n\n        var debouncedContentScroll = $$rAF.throttle(onContentScroll);\n        var debouncedUpdateHeight = $mdUtil.debounce(updateToolbarHeight, 5 * 1000);\n\n        // Wait for $mdContentLoaded event from mdContent directive.\n        // If the mdContent element is a sibling of our toolbar, hook it up\n        // to scroll events.\n\n        scope.$on('$mdContentLoaded', onMdContentLoad);\n\n        // If the toolbar is used inside an ng-if statement, we may miss the\n        // $mdContentLoaded event, so we attempt to fake it if we have a\n        // md-content close enough.\n\n        attr.$observe('mdScrollShrink', onChangeScrollShrink);\n\n        // If the toolbar has ngShow or ngHide we need to update height immediately as it changed\n        // and not wait for $mdUtil.debounce to happen\n\n        if (attr.ngShow) { scope.$watch(attr.ngShow, updateToolbarHeight); }\n        if (attr.ngHide) { scope.$watch(attr.ngHide, updateToolbarHeight); }\n\n        // If the scope is destroyed (which could happen with ng-if), make sure\n        // to disable scroll shrinking again\n\n        scope.$on('$destroy', disableScrollShrink);\n\n        /**\n         * @param {string} shrinkWithScroll value of md-scroll-shrink attribute\n         */\n        function onChangeScrollShrink(shrinkWithScroll) {\n          var closestContent = $mdUtil.getSiblings(element, 'md-content');\n\n          // If there are content elements, fake the call using the first content element.\n          // This might still fail if the content element isn't a sibling of the toolbar.\n          if (!contentElement && closestContent.length) {\n            onMdContentLoad(null, closestContent[0]);\n          }\n\n          // Evaluate the expression\n          shrinkWithScroll = scope.$eval(shrinkWithScroll);\n\n          // Disable only if the attribute's expression evaluates to false\n          if (shrinkWithScroll === false) {\n            disableScrollShrink();\n          } else {\n            disableScrollShrink = enableScrollShrink();\n          }\n        }\n\n        /**\n         * @param {null} $event $mdContentLoaded always has a null event\n         * @param {JQLite} newContentEl JQLite object containing an md-content\n         */\n        function onMdContentLoad($event, newContentEl) {\n          // Toolbar and content must be siblings\n          if (newContentEl && element.parent()[0] === newContentEl.parent()[0]) {\n            // unhook old content event listener if exists\n            if (contentElement) {\n              contentElement.off('scroll', debouncedContentScroll);\n            }\n\n            contentElement = newContentEl;\n            disableScrollShrink = enableScrollShrink();\n          }\n        }\n\n        /**\n         *\n         */\n        function onContentScroll(e) {\n          var scrollTop = e ? e.target.scrollTop : prevScrollTop;\n\n          debouncedUpdateHeight();\n\n          y = Math.min(\n            toolbarHeight / shrinkSpeedFactor,\n            Math.max(0, y + scrollTop - prevScrollTop)\n          );\n\n          element.css($mdConstant.CSS.TRANSFORM, translateY([-y * shrinkSpeedFactor]));\n          contentElement.css($mdConstant.CSS.TRANSFORM, translateY([(toolbarHeight - y) * shrinkSpeedFactor]));\n\n          prevScrollTop = scrollTop;\n\n          $mdUtil.nextTick(function() {\n            var hasWhiteFrame = element.hasClass('md-whiteframe-z1');\n\n            if (hasWhiteFrame && !y) {\n              $animate.removeClass(element, 'md-whiteframe-z1');\n            } else if (!hasWhiteFrame && y) {\n              $animate.addClass(element, 'md-whiteframe-z1');\n            }\n          });\n\n        }\n\n        /**\n         *\n         */\n        function enableScrollShrink() {\n          if (!contentElement)     return angular.noop;           // no md-content\n\n          contentElement.on('scroll', debouncedContentScroll);\n          contentElement.attr('scroll-shrink', 'true');\n\n          $timeout(updateToolbarHeight);\n\n          return function disableScrollShrink() {\n            contentElement.off('scroll', debouncedContentScroll);\n            contentElement.attr('scroll-shrink', 'false');\n\n            updateToolbarHeight();\n          };\n        }\n\n        /**\n         *\n         */\n        function updateToolbarHeight() {\n          toolbarHeight = element.prop('offsetHeight');\n          // Add a negative margin-top the size of the toolbar to the content el.\n          // The content will start transformed down the toolbarHeight amount,\n          // so everything looks normal.\n          //\n          // As the user scrolls down, the content will be transformed up slowly\n          // to put the content underneath where the toolbar was.\n          var margin = (-toolbarHeight * shrinkSpeedFactor) + 'px';\n\n          contentElement.css({\n            \"margin-top\": margin,\n            \"margin-bottom\": margin\n          });\n\n          onContentScroll();\n        }\n\n      }\n\n    }\n  };\n\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.tooltip\n */\nMdTooltipDirective.$inject = [\"$timeout\", \"$window\", \"$$rAF\", \"$document\", \"$interpolate\", \"$mdUtil\", \"$mdPanel\", \"$$mdTooltipRegistry\"];\nangular\n    .module('material.components.tooltip', [\n      'material.core',\n      'material.components.panel'\n    ])\n    .directive('mdTooltip', MdTooltipDirective)\n    .service('$$mdTooltipRegistry', MdTooltipRegistry);\n\n\n/**\n * @ngdoc directive\n * @name mdTooltip\n * @module material.components.tooltip\n * @description\n * Tooltips are used to describe elements that are interactive and primarily\n * graphical (not textual).\n *\n * Place a `<md-tooltip>` as a child of the element it describes.\n *\n * A tooltip will activate when the user hovers over, focuses, or touches the\n * parent element.\n *\n * @usage\n * <hljs lang=\"html\">\n *   <md-button class=\"md-fab md-accent\" aria-label=\"Play\">\n *     <md-tooltip>Play Music</md-tooltip>\n *     <md-icon md-svg-src=\"img/icons/ic_play_arrow_24px.svg\"></md-icon>\n *   </md-button>\n * </hljs>\n *\n * @param {number=} md-z-index The visual level that the tooltip will appear\n *     in comparison with the rest of the elements of the application.\n * @param {expression=} md-visible Boolean bound to whether the tooltip is\n *     currently visible.\n * @param {number=} md-delay How many milliseconds to wait to show the tooltip\n *     after the user hovers over, focuses, or touches the parent element.\n *     Defaults to 0ms on non-touch devices and 75ms on touch.\n * @param {boolean=} md-autohide If present or provided with a boolean value,\n *     the tooltip will hide on mouse leave, regardless of focus.\n * @param {string=} md-direction The direction that the tooltip is shown,\n *     relative to the parent element. Supports top, right, bottom, and left.\n *     Defaults to bottom.\n */\nfunction MdTooltipDirective($timeout, $window, $$rAF, $document, $interpolate,\n    $mdUtil, $mdPanel, $$mdTooltipRegistry) {\n\n  var ENTER_EVENTS = 'focus touchstart mouseenter';\n  var LEAVE_EVENTS = 'blur touchcancel mouseleave';\n  var TOOLTIP_DEFAULT_Z_INDEX = 100;\n  var TOOLTIP_DEFAULT_SHOW_DELAY = 0;\n  var TOOLTIP_DEFAULT_DIRECTION = 'bottom';\n  var TOOLTIP_DIRECTIONS = {\n    top: { x: $mdPanel.xPosition.CENTER, y: $mdPanel.yPosition.ABOVE },\n    right: { x: $mdPanel.xPosition.OFFSET_END, y: $mdPanel.yPosition.CENTER },\n    bottom: { x: $mdPanel.xPosition.CENTER, y: $mdPanel.yPosition.BELOW },\n    left: { x: $mdPanel.xPosition.OFFSET_START, y: $mdPanel.yPosition.CENTER }\n  };\n\n  return {\n    restrict: 'E',\n    priority: 210, // Before ngAria\n    scope: {\n      mdZIndex: '=?mdZIndex',\n      mdDelay: '=?mdDelay',\n      mdVisible: '=?mdVisible',\n      mdAutohide: '=?mdAutohide',\n      mdDirection: '@?mdDirection' // Do not expect expressions.\n    },\n    link: linkFunc\n  };\n\n  function linkFunc(scope, element, attr) {\n    // Set constants.\n    var tooltipId = 'md-tooltip-' + $mdUtil.nextUid();\n    var parent = $mdUtil.getParentWithPointerEvents(element);\n    var debouncedOnResize = $$rAF.throttle(updatePosition);\n    var mouseActive = false;\n    var origin, position, panelPosition, panelRef, autohide, showTimeout,\n        elementFocusedOnWindowBlur = null;\n\n    // Set defaults\n    setDefaults();\n\n    // Set parent aria-label.\n    addAriaLabel();\n\n    // Remove the element from its current DOM position.\n    element.detach();\n\n    updatePosition();\n    bindEvents();\n    configureWatchers();\n\n    function setDefaults() {\n      scope.mdZIndex = scope.mdZIndex || TOOLTIP_DEFAULT_Z_INDEX;\n      scope.mdDelay = scope.mdDelay || TOOLTIP_DEFAULT_SHOW_DELAY;\n      if (!TOOLTIP_DIRECTIONS[scope.mdDirection]) {\n        scope.mdDirection = TOOLTIP_DEFAULT_DIRECTION;\n      }\n    }\n\n    function addAriaLabel(labelText) {\n      // Only interpolate the text from the HTML element because otherwise the custom text could\n      // be interpolated twice and cause XSS violations.\n      var interpolatedText = labelText || $interpolate(element.text().trim())(scope.$parent);\n\n      // Only add the `aria-label` to the parent if there isn't already one, if there isn't an\n      // already present `aria-labelledby`, or if the previous `aria-label` was added by the\n      // tooltip directive.\n      if (\n        (!parent.attr('aria-label') && !parent.attr('aria-labelledby')) ||\n        parent.attr('md-labeled-by-tooltip')\n      ) {\n        parent.attr('aria-label', interpolatedText);\n\n        // Set the `md-labeled-by-tooltip` attribute if it has not already been set.\n        if (!parent.attr('md-labeled-by-tooltip')) {\n          parent.attr('md-labeled-by-tooltip', tooltipId);\n        }\n      }\n    }\n\n    function updatePosition() {\n      setDefaults();\n\n      // If the panel has already been created, remove the current origin\n      // class from the panel element.\n      if (panelRef && panelRef.panelEl) {\n        panelRef.panelEl.removeClass(origin);\n      }\n\n      // Set the panel element origin class based off of the current\n      // mdDirection.\n      origin = 'md-origin-' + scope.mdDirection;\n\n      // Create the position of the panel based off of the mdDirection.\n      position = TOOLTIP_DIRECTIONS[scope.mdDirection];\n\n      // Using the newly created position object, use the MdPanel\n      // panelPosition API to build the panel's position.\n      panelPosition = $mdPanel.newPanelPosition()\n          .relativeTo(parent)\n          .addPanelPosition(position.x, position.y);\n\n      // If the panel has already been created, add the new origin class to\n      // the panel element and update it's position with the panelPosition.\n      if (panelRef && panelRef.panelEl) {\n        panelRef.panelEl.addClass(origin);\n        panelRef.updatePosition(panelPosition);\n      }\n    }\n\n    function bindEvents() {\n      // Add a mutationObserver where there is support for it and the need\n      // for it in the form of viable host(parent[0]).\n      if (parent[0] && 'MutationObserver' in $window) {\n        // Use a mutationObserver to tackle #2602.\n        var attributeObserver = new MutationObserver(function(mutations) {\n          if (isDisabledMutation(mutations)) {\n            $mdUtil.nextTick(function() {\n              setVisible(false);\n            });\n          }\n        });\n\n        attributeObserver.observe(parent[0], {\n          attributes: true\n        });\n      }\n\n      elementFocusedOnWindowBlur = false;\n\n      $$mdTooltipRegistry.register('scroll', windowScrollEventHandler, true);\n      $$mdTooltipRegistry.register('blur', windowBlurEventHandler);\n      $$mdTooltipRegistry.register('resize', debouncedOnResize);\n\n      scope.$on('$destroy', onDestroy);\n\n      // To avoid 'synthetic clicks', we listen to mousedown instead of\n      // 'click'.\n      parent.on('mousedown', mousedownEventHandler);\n      parent.on(ENTER_EVENTS, enterEventHandler);\n\n      function isDisabledMutation(mutations) {\n        mutations.some(function(mutation) {\n          return mutation.attributeName === 'disabled' && parent[0].disabled;\n        });\n        return false;\n      }\n\n      function windowScrollEventHandler() {\n        setVisible(false);\n      }\n\n      function windowBlurEventHandler() {\n        elementFocusedOnWindowBlur = document.activeElement === parent[0];\n      }\n\n      function enterEventHandler($event) {\n        // Prevent the tooltip from showing when the window is receiving\n        // focus.\n        if ($event.type === 'focus' && elementFocusedOnWindowBlur) {\n          elementFocusedOnWindowBlur = false;\n        } else if (!scope.mdVisible) {\n          parent.on(LEAVE_EVENTS, leaveEventHandler);\n          setVisible(true);\n\n          // If the user is on a touch device, we should bind the tap away\n          // after the 'touched' in order to prevent the tooltip being\n          // removed immediately.\n          if ($event.type === 'touchstart') {\n            parent.one('touchend', function() {\n              $mdUtil.nextTick(function() {\n                $document.one('touchend', leaveEventHandler);\n              }, false);\n            });\n          }\n        }\n      }\n\n      function leaveEventHandler() {\n        autohide = scope.hasOwnProperty('mdAutohide') ?\n            scope.mdAutohide :\n            attr.hasOwnProperty('mdAutohide');\n\n        if (autohide || mouseActive ||\n            $document[0].activeElement !== parent[0]) {\n          // When a show timeout is currently in progress, then we have\n          // to cancel it, otherwise the tooltip will remain showing\n          // without focus or hover.\n          if (showTimeout) {\n            $timeout.cancel(showTimeout);\n            setVisible.queued = false;\n            showTimeout = null;\n          }\n\n          parent.off(LEAVE_EVENTS, leaveEventHandler);\n          parent.triggerHandler('blur');\n          setVisible(false);\n        }\n        mouseActive = false;\n      }\n\n      function mousedownEventHandler() {\n        mouseActive = true;\n      }\n\n      function onDestroy() {\n        $$mdTooltipRegistry.deregister('scroll', windowScrollEventHandler, true);\n        $$mdTooltipRegistry.deregister('blur', windowBlurEventHandler);\n        $$mdTooltipRegistry.deregister('resize', debouncedOnResize);\n\n        parent\n            .off(ENTER_EVENTS, enterEventHandler)\n            .off(LEAVE_EVENTS, leaveEventHandler)\n            .off('mousedown', mousedownEventHandler);\n\n        // Trigger the handler in case any of the tooltips are\n        // still visible.\n        leaveEventHandler();\n        attributeObserver && attributeObserver.disconnect();\n      }\n    }\n\n    function configureWatchers() {\n      if (element[0] && 'MutationObserver' in $window) {\n        var attributeObserver = new MutationObserver(function(mutations) {\n          mutations.forEach(function(mutation) {\n            if (mutation.attributeName === 'md-visible' &&\n                !scope.visibleWatcher) {\n              scope.visibleWatcher = scope.$watch('mdVisible',\n                  onVisibleChanged);\n            }\n          });\n        });\n\n        attributeObserver.observe(element[0], {\n          attributes: true\n        });\n\n        // Build watcher only if mdVisible is being used.\n        if (attr.hasOwnProperty('mdVisible')) {\n          scope.visibleWatcher = scope.$watch('mdVisible',\n              onVisibleChanged);\n        }\n      } else {\n        // MutationObserver not supported\n        scope.visibleWatcher = scope.$watch('mdVisible', onVisibleChanged);\n      }\n\n      // Direction watcher\n      scope.$watch('mdDirection', updatePosition);\n\n      // Clean up if the element or parent was removed via jqLite's .remove.\n      // A couple of notes:\n      //   - In these cases the scope might not have been destroyed, which\n      //     is why we destroy it manually. An example of this can be having\n      //     `md-visible=\"false\"` and adding tooltips while they're\n      //     invisible. If `md-visible` becomes true, at some point, you'd\n      //     usually get a lot of tooltips.\n      //   - We use `.one`, not `.on`, because this only needs to fire once.\n      //     If we were using `.on`, it would get thrown into an infinite\n      //     loop.\n      //   - This kicks off the scope's `$destroy` event which finishes the\n      //     cleanup.\n      element.one('$destroy', onElementDestroy);\n      parent.one('$destroy', onElementDestroy);\n      scope.$on('$destroy', function() {\n        setVisible(false);\n        panelRef && panelRef.destroy();\n        attributeObserver && attributeObserver.disconnect();\n        element.remove();\n      });\n\n      // Updates the aria-label when the element text changes. This watch\n      // doesn't need to be set up if the element doesn't have any data\n      // bindings.\n      if (element.text().indexOf($interpolate.startSymbol()) > -1) {\n        scope.$watch(function() {\n          return element.text().trim();\n        }, addAriaLabel);\n      }\n\n      function onElementDestroy() {\n        scope.$destroy();\n      }\n    }\n\n    function setVisible(value) {\n      // Break if passed value is already in queue or there is no queue and\n      // passed value is current in the controller.\n      if (setVisible.queued && setVisible.value === !!value ||\n          !setVisible.queued && scope.mdVisible === !!value) {\n        return;\n      }\n      setVisible.value = !!value;\n\n      if (!setVisible.queued) {\n        if (value) {\n          setVisible.queued = true;\n          showTimeout = $timeout(function() {\n            scope.mdVisible = setVisible.value;\n            setVisible.queued = false;\n            showTimeout = null;\n            if (!scope.visibleWatcher) {\n              onVisibleChanged(scope.mdVisible);\n            }\n          }, scope.mdDelay);\n        } else {\n          $mdUtil.nextTick(function() {\n            scope.mdVisible = false;\n            if (!scope.visibleWatcher) {\n              onVisibleChanged(false);\n            }\n          });\n        }\n      }\n    }\n\n    function onVisibleChanged(isVisible) {\n      isVisible ? showTooltip() : hideTooltip();\n    }\n\n    function showTooltip() {\n      // Do not show the tooltip if the text is empty.\n      if (!element[0].textContent.trim()) {\n        throw new Error('Text for the tooltip has not been provided. ' +\n            'Please include text within the mdTooltip element.');\n      }\n\n      if (!panelRef) {\n        var attachTo = angular.element(document.body);\n        var panelAnimation = $mdPanel.newPanelAnimation()\n            .openFrom(parent)\n            .closeTo(parent)\n            .withAnimation({\n              open: 'md-show',\n              close: 'md-hide'\n            });\n\n        var panelConfig = {\n          id: tooltipId,\n          attachTo: attachTo,\n          contentElement: element,\n          propagateContainerEvents: true,\n          panelClass: 'md-tooltip',\n          animation: panelAnimation,\n          position: panelPosition,\n          zIndex: scope.mdZIndex,\n          focusOnOpen: false,\n          onDomAdded: function() {\n            panelRef.panelEl.addClass(origin);\n          }\n        };\n\n        panelRef = $mdPanel.create(panelConfig);\n      }\n\n      panelRef.open().then(function() {\n        panelRef.panelEl.attr('role', 'tooltip');\n      });\n    }\n\n    function hideTooltip() {\n      panelRef && panelRef.close();\n    }\n  }\n\n}\n\n\n/**\n * Service that is used to reduce the amount of listeners that are being\n * registered on the `window` by the tooltip component. Works by collecting\n * the individual event handlers and dispatching them from a global handler.\n *\n * @ngInject\n */\nfunction MdTooltipRegistry() {\n  var listeners = {};\n  var ngWindow = angular.element(window);\n\n  return {\n    register: register,\n    deregister: deregister\n  };\n\n  /**\n   * Global event handler that dispatches the registered handlers in the\n   * service.\n   * @param {!Event} event Event object passed in by the browser\n   */\n  function globalEventHandler(event) {\n    if (listeners[event.type]) {\n      listeners[event.type].forEach(function(currentHandler) {\n        currentHandler.call(this, event);\n      }, this);\n    }\n  }\n\n  /**\n   * Registers a new handler with the service.\n   * @param {string} type Type of event to be registered.\n   * @param {!Function} handler Event handler.\n   * @param {boolean} useCapture Whether to use event capturing.\n   */\n  function register(type, handler, useCapture) {\n    var handlers = listeners[type] = listeners[type] || [];\n\n    if (!handlers.length) {\n      useCapture ? window.addEventListener(type, globalEventHandler, true) :\n          ngWindow.on(type, globalEventHandler);\n    }\n\n    if (handlers.indexOf(handler) === -1) {\n      handlers.push(handler);\n    }\n  }\n\n  /**\n   * Removes an event handler from the service.\n   * @param {string} type Type of event handler.\n   * @param {!Function} handler The event handler itself.\n   * @param {boolean} useCapture Whether the event handler used event capturing.\n   */\n  function deregister(type, handler, useCapture) {\n    var handlers = listeners[type];\n    var index = handlers ? handlers.indexOf(handler) : -1;\n\n    if (index > -1) {\n      handlers.splice(index, 1);\n\n      if (handlers.length === 0) {\n        useCapture ? window.removeEventListener(type, globalEventHandler, true) :\n            ngWindow.off(type, globalEventHandler);\n      }\n    }\n  }\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.truncate\n */\nMdTruncateController.$inject = [\"$element\"];\nangular.module('material.components.truncate', ['material.core'])\n  .directive('mdTruncate', MdTruncateDirective);\n\n/**\n * @ngdoc directive\n * @name mdTruncate\n * @module material.components.truncate\n * @restrict AE\n * @description\n *\n * The `md-truncate` component displays a label that will automatically clip text which is wider\n * than the component. By default, it displays an ellipsis, but you may apply the `md-clip` CSS\n * class to override this default and use a standard \"clipping\" approach.\n *\n * <i><b>Note:</b> The `md-truncate` component does not automatically adjust it's width. You must\n * provide the `flex` attribute, or some other CSS-based width management. See the\n * <a ng-href=\"./demo/truncate\">demos</a> for examples.</i>\n *\n * @usage\n *\n * ### As an Element\n *\n * <hljs lang=\"html\">\n *   <div layout=\"row\">\n *     <md-button>Back</md-button>\n *\n *     <md-truncate flex>Chapter 1 - The Way of the Old West</md-truncate>\n *\n *     <md-button>Forward</md-button>\n *   </div>\n * </hljs>\n *\n * ### As an Attribute\n *\n * <hljs lang=\"html\">\n *   <h2 md-truncate style=\"max-width: 100px;\">Some Title With a Lot of Text</h2>\n * </hljs>\n *\n * ## CSS & Styles\n *\n * `<md-truncate>` provides two CSS classes that you may use to control the type of clipping.\n *\n * <i><b>Note:</b> The `md-truncate` also applies a setting of `width: 0;` when used with the `flex`\n * attribute to fix an issue with the flex element not shrinking properly.</i>\n *\n * <div>\n * <docs-css-api-table>\n *\n *   <docs-css-selector code=\".md-ellipsis\">\n *     Assigns the \"ellipsis\" behavior (default) which will cut off mid-word and append an ellipsis\n *     (&hellip;) to the end of the text.\n *   </docs-css-selector>\n *\n *   <docs-css-selector code=\".md-clip\">\n *     Assigns the \"clipping\" behavior which will simply chop off the text. This may happen\n *     mid-word or even mid-character.\n *   </docs-css-selector>\n *\n * </docs-css-api-table>\n * </div>\n */\nfunction MdTruncateDirective() {\n  return {\n    restrict: 'AE',\n\n    controller: MdTruncateController\n  };\n}\n\n/**\n * Controller for the <md-truncate> component.\n *\n * @param $element The md-truncate element.\n *\n * @constructor\n * @ngInject\n */\nfunction MdTruncateController($element) {\n  $element.addClass('md-truncate');\n}\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.virtualRepeat\n */\nVirtualRepeatContainerController.$inject = [\"$$rAF\", \"$mdUtil\", \"$mdConstant\", \"$parse\", \"$rootScope\", \"$window\", \"$scope\", \"$element\", \"$attrs\"];\nVirtualRepeatController.$inject = [\"$scope\", \"$element\", \"$attrs\", \"$browser\", \"$document\", \"$rootScope\", \"$$rAF\", \"$mdUtil\"];\nVirtualRepeatDirective.$inject = [\"$parse\"];\nangular.module('material.components.virtualRepeat', [\n  'material.core',\n  'material.components.showHide'\n])\n.directive('mdVirtualRepeatContainer', VirtualRepeatContainerDirective)\n.directive('mdVirtualRepeat', VirtualRepeatDirective)\n.directive('mdForceHeight', ForceHeightDirective);\n\n\n/**\n * @ngdoc directive\n * @name mdVirtualRepeatContainer\n * @module material.components.virtualRepeat\n * @restrict E\n * @description\n * `md-virtual-repeat-container` provides the scroll container for\n * <a ng-href=\"api/directive/mdVirtualRepeat\">md-virtual-repeat</a>.\n *\n * VirtualRepeat is a limited substitute for `ng-repeat` that renders only\n * enough DOM nodes to fill the container, recycling them as the user scrolls.\n *\n * Once an element is not visible anymore, the Virtual Repeat recycles the element and reuses it\n * for another visible item by replacing the previous data set with the set of currently visible\n * elements.\n *\n * ### Common Issues\n *\n * - When having one-time bindings inside of the view template, the Virtual Repeat will not properly\n *   update the bindings for new items, since the view will be recycled.\n * - Directives inside of a Virtual Repeat will be only compiled (linked) once, because those\n *   items will be recycled and used for other items.\n *   The Virtual Repeat just updates the scope bindings.\n *\n *\n * ### Notes\n *\n * > The VirtualRepeat is a similar implementation to the Android\n * [RecyclerView](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.html).\n *\n * <!-- This comment forces a break between blockquotes //-->\n *\n * > Please also review the <a ng-href=\"api/directive/mdVirtualRepeat\">mdVirtualRepeat</a>\n * documentation for more information.\n *\n *\n * @usage\n * <hljs lang=\"html\">\n *\n * <md-virtual-repeat-container md-top-index=\"topIndex\">\n *   <div md-virtual-repeat=\"i in items\" md-item-size=\"20\">Hello {{i}}!</div>\n * </md-virtual-repeat-container>\n * </hljs>\n *\n * @param {boolean=} md-auto-shrink When present and the container will shrink to fit\n *     the number of items in the `md-virtual-repeat`.\n * @param {number=} md-auto-shrink-min Minimum number of items that md-auto-shrink\n *     will shrink to. Default: `0`.\n * @param {boolean=} md-orient-horizontal Whether the container should scroll horizontally.\n *     The default is `false` which indicates vertical orientation and scrolling.\n * @param {number=} md-top-index Binds the index of the item that is at the top of the scroll\n *     container to `$scope`. It can both read and set the scroll position.\n */\nfunction VirtualRepeatContainerDirective() {\n  return {\n    controller: VirtualRepeatContainerController,\n    template: virtualRepeatContainerTemplate,\n    compile: function virtualRepeatContainerCompile($element, $attrs) {\n      $element\n          .addClass('md-virtual-repeat-container')\n          .addClass($attrs.hasOwnProperty('mdOrientHorizontal')\n              ? 'md-orient-horizontal'\n              : 'md-orient-vertical');\n    }\n  };\n}\n\n\nfunction virtualRepeatContainerTemplate($element) {\n  return '<div class=\"md-virtual-repeat-scroller\" role=\"presentation\">' +\n    '<div class=\"md-virtual-repeat-sizer\" role=\"presentation\"></div>' +\n    '<div class=\"md-virtual-repeat-offsetter\" role=\"presentation\">' +\n      $element[0].innerHTML +\n    '</div></div>';\n}\n\n/**\n * Number of additional elements to render above and below the visible area inside\n * of the virtual repeat container. A higher number results in less flicker when scrolling\n * very quickly in Safari, but comes with a higher rendering and dirty-checking cost.\n * @const {number}\n */\nvar NUM_EXTRA = 3;\n\n/** @ngInject */\nfunction VirtualRepeatContainerController($$rAF, $mdUtil, $mdConstant, $parse, $rootScope, $window,\n                                          $scope, $element, $attrs) {\n  this.$rootScope = $rootScope;\n  this.$scope = $scope;\n  this.$element = $element;\n  this.$attrs = $attrs;\n\n  /** @type {number} The width or height of the container */\n  this.size = 0;\n  /** @type {number} The scroll width or height of the scroller */\n  this.scrollSize = 0;\n  /** @type {number} The scrollLeft or scrollTop of the scroller */\n  this.scrollOffset = 0;\n  /** @type {boolean} Whether the scroller is oriented horizontally */\n  this.horizontal = this.$attrs.hasOwnProperty('mdOrientHorizontal');\n  /** @type {!VirtualRepeatController} The repeater inside of this container */\n  this.repeater = null;\n  /** @type {boolean} Whether auto-shrink is enabled */\n  this.autoShrink = this.$attrs.hasOwnProperty('mdAutoShrink');\n  /** @type {number} Minimum number of items to auto-shrink to */\n  this.autoShrinkMin = parseInt(this.$attrs.mdAutoShrinkMin, 10) || 0;\n  /** @type {?number} Original container size when shrank */\n  this.originalSize = null;\n  /** @type {number} Amount to offset the total scroll size by. */\n  this.offsetSize = parseInt(this.$attrs.mdOffsetSize, 10) || 0;\n  /** @type {?string} height or width element style on the container prior to auto-shrinking. */\n  this.oldElementSize = null;\n  /** @type {!number} Maximum amount of pixels allowed for a single DOM element */\n  this.maxElementPixels = $mdConstant.ELEMENT_MAX_PIXELS;\n  /** @type {string}  Direction of the text */\n  this.ltr = !$mdUtil.isRtl(this.$attrs);\n\n  if (this.$attrs.mdTopIndex) {\n    /** @type {function(angular.Scope): number} Binds to topIndex on AngularJS scope */\n    this.bindTopIndex = $parse(this.$attrs.mdTopIndex);\n    /** @type {number} The index of the item that is at the top of the scroll container */\n    this.topIndex = this.bindTopIndex(this.$scope);\n\n    if (!angular.isDefined(this.topIndex)) {\n      this.topIndex = 0;\n      this.bindTopIndex.assign(this.$scope, 0);\n    }\n\n    this.$scope.$watch(this.bindTopIndex, angular.bind(this, function(newIndex) {\n      if (newIndex !== this.topIndex) {\n        this.scrollToIndex(newIndex);\n      }\n    }));\n  } else {\n    this.topIndex = 0;\n  }\n\n  this.scroller = $element[0].querySelector('.md-virtual-repeat-scroller');\n  this.sizer = this.scroller.querySelector('.md-virtual-repeat-sizer');\n  this.offsetter = this.scroller.querySelector('.md-virtual-repeat-offsetter');\n\n  // After the DOM stabilizes, measure the initial size of the container and\n  // make a best effort at re-measuring as it changes.\n  var boundUpdateSize = angular.bind(this, this.updateSize);\n\n  $$rAF(angular.bind(this, function() {\n    boundUpdateSize();\n\n    var debouncedUpdateSize = $mdUtil.debounce(boundUpdateSize, 10, null, false);\n    var jWindow = angular.element($window);\n\n    // Make one more attempt to get the size if it is 0.\n    // This is not by any means a perfect approach, but there's really no\n    // silver bullet here.\n    if (!this.size) {\n      debouncedUpdateSize();\n    }\n\n    jWindow.on('resize', debouncedUpdateSize);\n    $scope.$on('$destroy', function() {\n      jWindow.off('resize', debouncedUpdateSize);\n    });\n\n    $scope.$emit('$md-resize-enable');\n    $scope.$on('$md-resize', boundUpdateSize);\n  }));\n}\n\n\n/** Called by the md-virtual-repeat inside of the container at startup. */\nVirtualRepeatContainerController.prototype.register = function(repeaterCtrl) {\n  this.repeater = repeaterCtrl;\n\n  angular.element(this.scroller)\n      .on('scroll wheel touchmove touchend', angular.bind(this, this.handleScroll_));\n};\n\n\n/** @return {boolean} Whether the container is configured for horizontal scrolling. */\nVirtualRepeatContainerController.prototype.isHorizontal = function() {\n  return this.horizontal;\n};\n\n\n/** @return {number} The size (width or height) of the container. */\nVirtualRepeatContainerController.prototype.getSize = function() {\n  return this.size;\n};\n\n\n/**\n * Resizes the container.\n * @private\n * @param {number} size The new size to set.\n */\nVirtualRepeatContainerController.prototype.setSize_ = function(size) {\n  var dimension = this.getDimensionName_();\n\n  this.size = size;\n  this.$element[0].style[dimension] = size + 'px';\n};\n\n\nVirtualRepeatContainerController.prototype.unsetSize_ = function() {\n  this.$element[0].style[this.getDimensionName_()] = this.oldElementSize;\n  this.oldElementSize = null;\n};\n\n\n/** Instructs the container to re-measure its size. */\nVirtualRepeatContainerController.prototype.updateSize = function() {\n  // If the original size is already determined, we can skip the update.\n  if (this.originalSize) return;\n\n  var size = this.isHorizontal()\n      ? this.$element[0].clientWidth\n      : this.$element[0].clientHeight;\n\n  if (size) {\n    this.size = size;\n  }\n\n  // Recheck the scroll position after updating the size. This resolves\n  // problems that can result if the scroll position was measured while the\n  // element was display: none or detached from the document.\n  this.handleScroll_();\n\n  this.repeater && this.repeater.containerUpdated();\n};\n\n\n/** @return {number} The container's scrollHeight or scrollWidth. */\nVirtualRepeatContainerController.prototype.getScrollSize = function() {\n  return this.scrollSize;\n};\n\n/**\n * @returns {string} either width or height dimension\n * @private\n */\nVirtualRepeatContainerController.prototype.getDimensionName_ = function() {\n  return this.isHorizontal() ? 'width' : 'height';\n};\n\n\n/**\n * Sets the scroller element to the specified size.\n * @private\n * @param {number} size The new size.\n */\nVirtualRepeatContainerController.prototype.sizeScroller_ = function(size) {\n  var dimension =  this.getDimensionName_();\n  var crossDimension = this.isHorizontal() ? 'height' : 'width';\n\n  // Clear any existing dimensions.\n  this.sizer.innerHTML = '';\n\n  // If the size falls within the browser's maximum explicit size for a single element, we can\n  // set the size and be done. Otherwise, we have to create children that add up the the desired\n  // size.\n  if (size < this.maxElementPixels) {\n    this.sizer.style[dimension] = size + 'px';\n  } else {\n    this.sizer.style[dimension] = 'auto';\n    this.sizer.style[crossDimension] = 'auto';\n\n    // Divide the total size we have to render into N max-size pieces.\n    var numChildren = Math.floor(size / this.maxElementPixels);\n\n    // Element template to clone for each max-size piece.\n    var sizerChild = document.createElement('div');\n    sizerChild.style[dimension] = this.maxElementPixels + 'px';\n    sizerChild.style[crossDimension] = '1px';\n\n    for (var i = 0; i < numChildren; i++) {\n      this.sizer.appendChild(sizerChild.cloneNode(false));\n    }\n\n    // Re-use the element template for the remainder.\n    sizerChild.style[dimension] = (size - (numChildren * this.maxElementPixels)) + 'px';\n    this.sizer.appendChild(sizerChild);\n  }\n};\n\n\n/**\n * If auto-shrinking is enabled, shrinks or unshrinks as appropriate.\n * @private\n * @param {number} size The new size.\n */\nVirtualRepeatContainerController.prototype.autoShrink_ = function(size) {\n  var shrinkSize = Math.max(size, this.autoShrinkMin * this.repeater.getItemSize());\n\n  if (this.autoShrink && shrinkSize !== this.size) {\n    if (this.oldElementSize === null) {\n      this.oldElementSize = this.$element[0].style[this.getDimensionName_()];\n    }\n\n    var currentSize = this.originalSize || this.size;\n\n    if (!currentSize || shrinkSize < currentSize) {\n      if (!this.originalSize) {\n        this.originalSize = this.size;\n      }\n\n      // Now we update the containers size, because shrinking is enabled.\n      this.setSize_(shrinkSize);\n    } else if (this.originalSize !== null) {\n      // Set the size back to our initial size.\n      this.unsetSize_();\n\n      var _originalSize = this.originalSize;\n      this.originalSize = null;\n\n      // We determine the repeaters size again, if the original size was zero.\n      // The originalSize needs to be null, to be able to determine the size.\n      if (!_originalSize) this.updateSize();\n\n      // Apply the original size or the determined size back to the container, because\n      // it has been overwritten before, in the shrink block.\n      this.setSize_(_originalSize || this.size);\n    }\n\n    this.repeater.containerUpdated();\n  }\n};\n\n\n/**\n * Sets the scrollHeight or scrollWidth. Called by the repeater based on\n * its item count and item size.\n * @param {number} itemsSize The total size of the items.\n */\nVirtualRepeatContainerController.prototype.setScrollSize = function(itemsSize) {\n  var size = itemsSize + this.offsetSize;\n  if (this.scrollSize === size) return;\n\n  this.sizeScroller_(size);\n  this.autoShrink_(size);\n  this.scrollSize = size;\n};\n\n\n/** @return {number} The container's current scroll offset. */\nVirtualRepeatContainerController.prototype.getScrollOffset = function() {\n  return this.scrollOffset;\n};\n\n/**\n * Scrolls to a given scrollTop position.\n * @param {number} position\n */\nVirtualRepeatContainerController.prototype.scrollTo = function(position) {\n  this.scroller[this.isHorizontal() ? 'scrollLeft' : 'scrollTop'] = position;\n  this.handleScroll_();\n};\n\n/**\n * Scrolls the item with the given index to the top of the scroll container.\n * @param {number} index\n */\nVirtualRepeatContainerController.prototype.scrollToIndex = function(index) {\n  var itemSize = this.repeater.getItemSize();\n  var itemsLength = this.repeater.itemsLength;\n  if (index > itemsLength) {\n    index = itemsLength - 1;\n  }\n  this.scrollTo(itemSize * index);\n};\n\nVirtualRepeatContainerController.prototype.resetScroll = function() {\n  this.scrollTo(0);\n};\n\n\nVirtualRepeatContainerController.prototype.handleScroll_ = function() {\n  if (!this.ltr && !this.maxSize) {\n    this.scroller.scrollLeft = this.scrollSize;\n    this.maxSize = this.scroller.scrollLeft;\n  }\n  var offset = this.isHorizontal() ?\n      (this.ltr ? this.scroller.scrollLeft : this.maxSize - this.scroller.scrollLeft)\n      : this.scroller.scrollTop;\n  if (this.scrollSize < this.size) return;\n  if (offset > this.scrollSize - this.size) {\n    offset = this.scrollSize - this.size;\n  }\n  if (offset === this.scrollOffset) return;\n\n  var itemSize = this.repeater.getItemSize();\n  if (!itemSize) return;\n\n  var numItems = Math.max(0, Math.floor(offset / itemSize) - NUM_EXTRA);\n\n  var transform = (this.isHorizontal() ? 'translateX(' : 'translateY(') +\n      (!this.isHorizontal() || this.ltr ? (numItems * itemSize) : - (numItems * itemSize))  + 'px)';\n\n  this.scrollOffset = offset;\n  this.offsetter.style.webkitTransform = transform;\n  this.offsetter.style.transform = transform;\n\n  if (this.bindTopIndex) {\n    var topIndex = Math.floor(offset / itemSize);\n    if (topIndex !== this.topIndex && topIndex < this.repeater.getItemCount()) {\n      this.topIndex = topIndex;\n      this.bindTopIndex.assign(this.$scope, topIndex);\n      if (!this.$rootScope.$$phase) this.$scope.$digest();\n    }\n  }\n\n  this.repeater.containerUpdated();\n};\n\n\n/**\n * @ngdoc directive\n * @name mdVirtualRepeat\n * @module material.components.virtualRepeat\n * @restrict A\n * @priority 1000\n * @description\n * The `md-virtual-repeat` attribute is applied to a template that is repeated using virtual\n * scrolling. This provides smooth and performant scrolling through very large lists of elements.\n *\n * Virtual repeat is a limited substitute for `ng-repeat` that renders only\n * enough DOM nodes to fill the container, recycling them as the user scrolls.\n *\n * ### Notes\n *\n * - Arrays are supported for iteration by default.\n * - An object can used use if `md-on-demand` is specified and the object implements the interface\n *   described in the `md-on-demand` <a ng-href=\"#attributes\">documentation</a>.\n * - `trackBy`, `as` alias, and `(key, value)` syntax from `ng-repeat` are not supported.\n *\n * ### On-Demand Async Item Loading\n *\n * When using the `md-on-demand` attribute and loading some asynchronous data,\n * the `getItemAtIndex` function will mostly return nothing.\n *\n * <hljs lang=\"js\">\n *   DynamicItems.prototype.getItemAtIndex = function(index) {\n *     if (this.pages[index]) {\n *       return this.pages[index];\n *     } else {\n *       // This is an asynchronous action and does not return any value.\n *       this.loadPage(index);\n *     }\n *   };\n * </hljs>\n *\n * This means that the Virtual Repeat will not have any value for the given index.<br/>\n * After the data loading completes, the user expects the Virtual Repeat to recognize the change.\n *\n * To make sure that the Virtual Repeat properly detects any change, you need to run the operation\n * in another digest.\n *\n * <hljs lang=\"js\">\n *   DynamicItems.prototype.loadPage = function(index) {\n *     var self = this;\n *\n *     // Trigger a new digest by using $timeout\n *     $timeout(function() {\n *       self.pages[index] = Data;\n *     });\n *   };\n * </hljs>\n *\n * > <b>Note:</b> Please also review the\n *   <a ng-href=\"api/directive/mdVirtualRepeatContainer\">VirtualRepeatContainer</a> documentation\n *   for more information.\n *\n * @usage\n * <hljs lang=\"html\">\n * <md-virtual-repeat-container>\n *   <div md-virtual-repeat=\"i in items\">Hello {{i}}!</div>\n * </md-virtual-repeat-container>\n *\n * <md-virtual-repeat-container md-orient-horizontal>\n *   <div md-virtual-repeat=\"i in items\" md-item-size=\"20\">Hello {{i}}!</div>\n * </md-virtual-repeat-container>\n * </hljs>\n *\n * @param {expression=} md-extra-name Evaluates to an additional name to which the current iterated\n *   item can be assigned on the repeated scope (needed for use in `md-autocomplete`).\n * @param {number=} md-item-size Optional height or width of the repeated elements (which **must be\n *   identical for each element**). Virtual repeat will attempt to read the size from the DOM,\n *   if missing, but it still assumes that all repeated nodes have the **same height**\n *   (when scrolling vertically) or **same width** (when scrolling horizontally).\n * @param {boolean=} md-on-demand When present, treats the `md-virtual-repeat` argument as an object\n *   that can fetch rows rather than an array.\n *\n *   **NOTE:** This object **must** implement the following interface with two methods:\n *\n *   - `getItemAtIndex` - `{function(index): Object}`: The item at that `index` or `null` if it is\n *     not yet loaded (it should start downloading the item in that case).\n *   - `getLength` - `{function(): number}`: The data length to which the repeater container\n *     should be sized. Ideally, when the count is known, this method should return it.\n *     Otherwise, return a higher number than the currently loaded items to produce an\n *     infinite-scroll behavior.\n */\nfunction VirtualRepeatDirective($parse) {\n  return {\n    controller: VirtualRepeatController,\n    priority: 1000,\n    require: ['mdVirtualRepeat', '^^mdVirtualRepeatContainer'],\n    restrict: 'A',\n    terminal: true,\n    transclude: 'element',\n    compile: function VirtualRepeatCompile($element, $attrs) {\n      var expression = $attrs.mdVirtualRepeat;\n      var match = expression.match(/^\\s*([\\s\\S]+?)\\s+in\\s+([\\s\\S]+?)\\s*$/);\n      var repeatName = match[1];\n      var repeatListExpression = $parse(match[2]);\n      var extraName = $attrs.mdExtraName && $parse($attrs.mdExtraName);\n\n      return function VirtualRepeatLink($scope, $element, $attrs, ctrl, $transclude) {\n        ctrl[0].link_(ctrl[1], $transclude, repeatName, repeatListExpression, extraName);\n      };\n    }\n  };\n}\n\n\n/** @ngInject */\nfunction VirtualRepeatController($scope, $element, $attrs, $browser, $document, $rootScope,\n    $$rAF, $mdUtil) {\n  this.$scope = $scope;\n  this.$element = $element;\n  this.$attrs = $attrs;\n  this.$browser = $browser;\n  this.$document = $document;\n  this.$mdUtil = $mdUtil;\n  this.$rootScope = $rootScope;\n  this.$$rAF = $$rAF;\n\n  /** @type {boolean} Whether we are in on-demand mode. */\n  this.onDemand = $mdUtil.parseAttributeBoolean($attrs.mdOnDemand);\n  /** @type {!Function} Backup reference to $browser.$$checkUrlChange */\n  this.browserCheckUrlChange = $browser.$$checkUrlChange;\n  /** @type {number} Most recent starting repeat index (based on scroll offset) */\n  this.newStartIndex = 0;\n  /** @type {number} Most recent ending repeat index (based on scroll offset) */\n  this.newEndIndex = 0;\n  /** @type {number} Most recent end visible index (based on scroll offset) */\n  this.newVisibleEnd = 0;\n  /** @type {number} Previous starting repeat index (based on scroll offset) */\n  this.startIndex = 0;\n  /** @type {number} Previous ending repeat index (based on scroll offset) */\n  this.endIndex = 0;\n  /** @type {?number} Height/width of repeated elements. */\n  this.itemSize = $scope.$eval($attrs.mdItemSize) || null;\n\n  /** @type {boolean} Whether this is the first time that items are rendered. */\n  this.isFirstRender = true;\n\n  /**\n   * @private {boolean} Whether the items in the list are already being updated. Used to prevent\n   *     nested calls to virtualRepeatUpdate_.\n   */\n  this.isVirtualRepeatUpdating_ = false;\n\n  /** @type {number} Most recently seen length of items. */\n  this.itemsLength = 0;\n\n  /**\n   * @type {!Function} Unwatch callback for item size (when md-items-size is\n   *     not specified), or angular.noop otherwise.\n   */\n  this.unwatchItemSize_ = angular.noop;\n\n  /**\n   * Presently rendered blocks by repeat index.\n   * @type {Object<number, !VirtualRepeatController.Block>}\n   */\n  this.blocks = {};\n  /** @type {Array<!VirtualRepeatController.Block>} A pool of presently unused blocks. */\n  this.pooledBlocks = [];\n\n  $scope.$on('$destroy', angular.bind(this, this.cleanupBlocks_));\n}\n\n\n/**\n * An object representing a repeated item.\n * @typedef {{element: !jqLite, new: boolean, scope: !angular.Scope}}\n */\nVirtualRepeatController.Block;\n\n\n/**\n * Called at startup by the md-virtual-repeat postLink function.\n * @param {!VirtualRepeatContainerController} container The container's controller.\n * @param {!Function} transclude The repeated element's bound transclude function.\n * @param {string} repeatName The left hand side of the repeat expression, indicating\n *     the name for each item in the array.\n * @param {!Function} repeatListExpression A compiled expression based on the right hand side\n *     of the repeat expression. Points to the array to repeat over.\n * @param {string|undefined} extraName The optional extra repeatName.\n */\nVirtualRepeatController.prototype.link_ =\n    function(container, transclude, repeatName, repeatListExpression, extraName) {\n  this.container = container;\n  this.transclude = transclude;\n  this.repeatName = repeatName;\n  this.rawRepeatListExpression = repeatListExpression;\n  this.extraName = extraName;\n  this.sized = false;\n\n  this.repeatListExpression = angular.bind(this, this.repeatListExpression_);\n\n  this.container.register(this);\n};\n\n\n/** @private Cleans up unused blocks. */\nVirtualRepeatController.prototype.cleanupBlocks_ = function() {\n  angular.forEach(this.pooledBlocks, function cleanupBlock(block) {\n    block.element.remove();\n  });\n};\n\n\n/** @private Attempts to set itemSize by measuring a repeated element in the dom */\nVirtualRepeatController.prototype.readItemSize_ = function() {\n  if (this.itemSize) {\n    // itemSize was successfully read in a different asynchronous call.\n    return;\n  }\n\n  this.items = this.repeatListExpression(this.$scope);\n  this.parentNode = this.$element[0].parentNode;\n  var block = this.getBlock_(0);\n  if (!block.element[0].parentNode) {\n    this.parentNode.appendChild(block.element[0]);\n  }\n\n  this.itemSize = block.element[0][\n      this.container.isHorizontal() ? 'offsetWidth' : 'offsetHeight'] || null;\n\n  this.blocks[0] = block;\n  this.poolBlock_(0);\n\n  if (this.itemSize) {\n    this.containerUpdated();\n  }\n};\n\n\n/**\n * Returns the user-specified repeat list, transforming it into an array-like\n * object in the case of infinite scroll/dynamic load mode.\n * @param {!angular.Scope} scope The scope.\n * @return {!Array|!Object} An array or array-like object for iteration.\n */\nVirtualRepeatController.prototype.repeatListExpression_ = function(scope) {\n  var repeatList = this.rawRepeatListExpression(scope);\n\n  if (this.onDemand && repeatList) {\n    var virtualList = new VirtualRepeatModelArrayLike(repeatList);\n    virtualList.$$includeIndexes(this.newStartIndex, this.newVisibleEnd);\n    return virtualList;\n  } else {\n    return repeatList;\n  }\n};\n\n\n/**\n * Called by the container. Informs us that the container's scroll or size has\n * changed.\n */\nVirtualRepeatController.prototype.containerUpdated = function() {\n  // If itemSize is unknown, attempt to measure it.\n  if (!this.itemSize) {\n    // Make sure to clean up watchers if we can (see #8178)\n    if (this.unwatchItemSize_ && this.unwatchItemSize_ !== angular.noop){\n      this.unwatchItemSize_();\n    }\n    this.unwatchItemSize_ = this.$scope.$watchCollection(\n        this.repeatListExpression,\n        angular.bind(this, function(items) {\n          if (items && items.length) {\n            this.readItemSize_();\n          }\n        }));\n    if (!this.$rootScope.$$phase) this.$scope.$digest();\n\n    return;\n  } else if (!this.sized) {\n    this.items = this.repeatListExpression(this.$scope);\n  }\n\n  if (!this.sized) {\n    this.unwatchItemSize_();\n    this.sized = true;\n    this.$scope.$watchCollection(this.repeatListExpression,\n        angular.bind(this, function(items, oldItems) {\n          if (!this.isVirtualRepeatUpdating_) {\n            this.virtualRepeatUpdate_(items, oldItems);\n          }\n        }));\n  }\n\n  this.updateIndexes_();\n\n  if (this.newStartIndex !== this.startIndex ||\n      this.newEndIndex !== this.endIndex ||\n      this.container.getScrollOffset() > this.container.getScrollSize()) {\n    if (this.items instanceof VirtualRepeatModelArrayLike) {\n      this.items.$$includeIndexes(this.newStartIndex, this.newEndIndex);\n    }\n    this.virtualRepeatUpdate_(this.items, this.items);\n  }\n};\n\n\n/**\n * Called by the container. Returns the size of a single repeated item.\n * @return {?number} size of a repeated item.\n */\nVirtualRepeatController.prototype.getItemSize = function() {\n  return this.itemSize;\n};\n\n\n/**\n * Called by the container.\n * @return {?number} the most recently seen length of items.\n */\nVirtualRepeatController.prototype.getItemCount = function() {\n  return this.itemsLength;\n};\n\n\n/**\n * Updates the order and visible offset of repeated blocks in response to scrolling\n * or updates to `items`.\n * @param {Array} items visible elements\n * @param {Array} oldItems previously visible elements\n * @private\n */\nVirtualRepeatController.prototype.virtualRepeatUpdate_ = function(items, oldItems) {\n  this.isVirtualRepeatUpdating_ = true;\n\n  var itemsLength = items && items.length || 0;\n  var lengthChanged = false;\n\n  // If the number of items shrank, keep the scroll position.\n  if (this.items && itemsLength < this.items.length && this.container.getScrollOffset() !== 0) {\n    this.items = items;\n    var previousScrollOffset = this.container.getScrollOffset();\n    this.container.resetScroll();\n    this.container.scrollTo(previousScrollOffset);\n  }\n\n  if (itemsLength !== this.itemsLength) {\n    lengthChanged = true;\n    this.itemsLength = itemsLength;\n  }\n\n  this.items = items;\n  if (items !== oldItems || lengthChanged) {\n    this.updateIndexes_();\n  }\n\n  this.parentNode = this.$element[0].parentNode;\n\n  if (lengthChanged) {\n    this.container.setScrollSize(itemsLength * this.itemSize);\n  }\n\n  // Detach and pool any blocks that are no longer in the viewport.\n  Object.keys(this.blocks).forEach(function(blockIndex) {\n    var index = parseInt(blockIndex, 10);\n    if (index < this.newStartIndex || index >= this.newEndIndex) {\n      this.poolBlock_(index);\n    }\n  }, this);\n\n  // Add needed blocks.\n  // For performance reasons, temporarily block browser url checks as we digest\n  // the restored block scopes ($$checkUrlChange reads window.location to\n  // check for changes and trigger route change, etc, which we don't need when\n  // trying to scroll at 60fps).\n  this.$browser.$$checkUrlChange = angular.noop;\n\n  var i, block,\n      newStartBlocks = [],\n      newEndBlocks = [];\n\n  // Collect blocks at the top.\n  for (i = this.newStartIndex; i < this.newEndIndex && this.blocks[i] == null; i++) {\n    block = this.getBlock_(i);\n    this.updateBlock_(block, i);\n    newStartBlocks.push(block);\n  }\n\n  // Update blocks that are already rendered.\n  for (; this.blocks[i] != null; i++) {\n    this.updateBlock_(this.blocks[i], i);\n  }\n  var maxIndex = i - 1;\n\n  // Collect blocks at the end.\n  for (; i < this.newEndIndex; i++) {\n    block = this.getBlock_(i);\n    this.updateBlock_(block, i);\n    newEndBlocks.push(block);\n  }\n\n  // Attach collected blocks to the document.\n  if (newStartBlocks.length) {\n    this.parentNode.insertBefore(\n        this.domFragmentFromBlocks_(newStartBlocks),\n        this.$element[0].nextSibling);\n  }\n  if (newEndBlocks.length) {\n    this.parentNode.insertBefore(\n        this.domFragmentFromBlocks_(newEndBlocks),\n        this.blocks[maxIndex] && this.blocks[maxIndex].element[0].nextSibling);\n  }\n\n  // Restore $$checkUrlChange.\n  this.$browser.$$checkUrlChange = this.browserCheckUrlChange;\n\n  this.startIndex = this.newStartIndex;\n  this.endIndex = this.newEndIndex;\n\n  if (this.isFirstRender) {\n    this.isFirstRender = false;\n    var firstRenderStartIndex = this.$attrs.mdStartIndex ?\n      this.$scope.$eval(this.$attrs.mdStartIndex) :\n      this.container.topIndex;\n\n    // The first call to virtualRepeatUpdate_ may not be when the virtual repeater is ready.\n    // Introduce a slight delay so that the update happens when it is actually ready.\n    this.$mdUtil.nextTick(function() {\n      this.container.scrollToIndex(firstRenderStartIndex);\n    }.bind(this));\n  }\n\n  this.isVirtualRepeatUpdating_ = false;\n};\n\n\n/**\n * @param {number} index Where the block is to be in the repeated list.\n * @return {!VirtualRepeatController.Block} A new or pooled block to place at the specified index.\n * @private\n */\nVirtualRepeatController.prototype.getBlock_ = function(index) {\n  if (this.pooledBlocks.length) {\n    return this.pooledBlocks.pop();\n  }\n\n  var block;\n  this.transclude(angular.bind(this, function(clone, scope) {\n    block = {\n      element: clone,\n      new: true,\n      scope: scope\n    };\n\n    this.updateScope_(scope, index);\n    this.parentNode.appendChild(clone[0]);\n  }));\n\n  return block;\n};\n\n\n/**\n * Updates and if not in a digest cycle, digests the specified block's scope to the data\n * at the specified index.\n * @param {!VirtualRepeatController.Block} block The block whose scope should be updated.\n * @param {number} index The index to set.\n * @private\n */\nVirtualRepeatController.prototype.updateBlock_ = function(block, index) {\n  this.blocks[index] = block;\n\n  if (!block.new &&\n      (block.scope.$index === index && block.scope[this.repeatName] === this.items[index])) {\n    return;\n  }\n  block.new = false;\n\n  // Update and digest the block's scope.\n  this.updateScope_(block.scope, index);\n\n  // Perform digest before reattaching the block.\n  // Any resulting synchronous DOM mutations should be much faster as a result.\n  // This might break some directives.\n  if (!this.$rootScope.$$phase) {\n    block.scope.$digest();\n  }\n};\n\n\n/**\n * Updates scope to the data at the specified index.\n * @param {!angular.Scope} scope The scope which should be updated.\n * @param {number} index The index to set.\n * @private\n */\nVirtualRepeatController.prototype.updateScope_ = function(scope, index) {\n  scope.$index = index;\n  scope[this.repeatName] = this.items && this.items[index];\n  if (this.extraName) scope[this.extraName(this.$scope)] = this.items[index];\n};\n\n\n/**\n * Pools the block at the specified index (Pulls its element out of the dom and stores it).\n * @param {number} index The index at which the block to pool is stored.\n * @private\n */\nVirtualRepeatController.prototype.poolBlock_ = function(index) {\n  this.pooledBlocks.push(this.blocks[index]);\n  this.parentNode.removeChild(this.blocks[index].element[0]);\n  delete this.blocks[index];\n};\n\n\n/**\n * Produces a dom fragment containing the elements from the list of blocks.\n * @param {!Array<!VirtualRepeatController.Block>} blocks The blocks whose elements\n *     should be added to the document fragment.\n * @return {DocumentFragment}\n * @private\n */\nVirtualRepeatController.prototype.domFragmentFromBlocks_ = function(blocks) {\n  var fragment = this.$document[0].createDocumentFragment();\n  blocks.forEach(function(block) {\n    fragment.appendChild(block.element[0]);\n  });\n  return fragment;\n};\n\n\n/**\n * Updates start and end indexes based on length of repeated items and container size.\n * @private\n */\nVirtualRepeatController.prototype.updateIndexes_ = function() {\n  var itemsLength = this.items ? this.items.length : 0;\n  var containerLength = Math.ceil(this.container.getSize() / this.itemSize);\n\n  this.newStartIndex = Math.max(0, Math.min(\n      itemsLength - containerLength,\n      Math.floor(this.container.getScrollOffset() / this.itemSize)));\n  this.newVisibleEnd = this.newStartIndex + containerLength + NUM_EXTRA;\n  this.newEndIndex = Math.min(itemsLength, this.newVisibleEnd);\n  this.newStartIndex = Math.max(0, this.newStartIndex - NUM_EXTRA);\n};\n\n/**\n * This VirtualRepeatModelArrayLike class enforces the interface requirements\n * for infinite scrolling within a mdVirtualRepeatContainer.\n *\n * @param {Object} model An object with this interface must implement the following interface with\n * two (2) methods:\n *\n * getItemAtIndex: function(index) -> item at that index or null if it is not yet\n *     loaded (It should start downloading the item in that case).\n *\n * getLength: function() -> number The data length to which the repeater container\n *     should be sized. Ideally, when the count is known, this method should return it.\n *     Otherwise, return a higher number than the currently loaded items to produce an\n *     infinite-scroll behavior.\n *\n * @usage\n * <hljs lang=\"html\">\n *  <md-virtual-repeat-container md-orient-horizontal>\n *    <div md-virtual-repeat=\"i in items\" md-on-demand>\n *      Hello {{i}}!\n *    </div>\n *  </md-virtual-repeat-container>\n * </hljs>\n *\n */\nfunction VirtualRepeatModelArrayLike(model) {\n  if (!angular.isFunction(model.getItemAtIndex) ||\n      !angular.isFunction(model.getLength)) {\n    throw Error('When md-on-demand is enabled, the Object passed to md-virtual-repeat must ' +\n        'implement functions getItemAtIndex() and getLength().');\n  }\n\n  this.model = model;\n}\n\n/**\n * @param {number} start\n * @param {number} end\n */\nVirtualRepeatModelArrayLike.prototype.$$includeIndexes = function(start, end) {\n  for (var i = start; i < end; i++) {\n    if (!this.hasOwnProperty(i)) {\n      this[i] = this.model.getItemAtIndex(i);\n    }\n  }\n  this.length = this.model.getLength();\n};\n\n/**\n * @ngdoc directive\n * @name mdForceHeight\n * @module material.components.virtualRepeat\n * @restrict A\n * @description\n *\n * Force an element to have a certain `px` height. This is used in place of a style tag in order to\n * conform to the\n * <a href=\"https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy/script-src\">\n *   Content Security Policy</a> regarding `unsafe-inline` `<style>` tags.\n *\n * This directive is related to <a ng-href=\"api/directive/mdVirtualRepeat\">mdVirtualRepeat</a>.\n *\n * @usage\n * <hljs lang=\"html\">\n *   <div md-force-height=\"'100px'\"></div>\n * </hljs>\n */\nfunction ForceHeightDirective($mdUtil) {\n  return {\n    restrict: 'A',\n    link: function(scope, element, attrs) {\n      var height = scope.$eval(attrs.mdForceHeight) || null;\n\n      if (height && element) {\n        element[0].style.height = height;\n      }\n    }\n  };\n}\nForceHeightDirective.$inject = ['$mdUtil'];\n\n})();\n(function(){\n\"use strict\";\n\n/**\n * @ngdoc module\n * @name material.components.whiteframe\n */\nMdWhiteframeDirective.$inject = [\"$log\"];\nangular\n  .module('material.components.whiteframe', ['material.core'])\n  .directive('mdWhiteframe', MdWhiteframeDirective);\n\n/**\n * @ngdoc directive\n * @module material.components.whiteframe\n * @name mdWhiteframe\n *\n * @description\n * The md-whiteframe directive allows you to apply an elevation shadow to an element.\n *\n * The attribute values needs to be a number between 1 and 24 or -1.\n * When set to -1 no style is applied.\n *\n * ### Notes\n * - If there is no value specified it defaults to 4dp.\n * - If the value is not valid it defaults to 4dp.\n\n * @usage\n * <hljs lang=\"html\">\n * <div md-whiteframe=\"3\">\n *   <span>Elevation of 3dp</span>\n * </div>\n * </hljs>\n *\n * <hljs lang=\"html\">\n * <div md-whiteframe=\"-1\">\n *   <span>No elevation shadow applied</span>\n * </div>\n * </hljs>\n *\n * <hljs lang=\"html\">\n * <div ng-init=\"elevation = 5\" md-whiteframe=\"{{elevation}}\">\n *   <span>Elevation of 5dp with an interpolated value</span>\n * </div>\n * </hljs>\n */\nfunction MdWhiteframeDirective($log) {\n  var DISABLE_DP = -1;\n  var MIN_DP = 1;\n  var MAX_DP = 24;\n  var DEFAULT_DP = 4;\n\n  return {\n    link: postLink\n  };\n\n  function postLink(scope, element, attr) {\n    var oldClass = '';\n\n    attr.$observe('mdWhiteframe', function(elevation) {\n      elevation = parseInt(elevation, 10) || DEFAULT_DP;\n\n      if (elevation != DISABLE_DP && (elevation > MAX_DP || elevation < MIN_DP)) {\n        $log.warn('md-whiteframe attribute value is invalid. 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.md-input::-webkit-input-placeholder{color:\\\"{{warn-500-contrast-secondary}}\\\"}md-toolbar.md-THEME_NAME-theme:not(.md-menu-toolbar).md-warn md-input-container[md-no-float].md-input-focused .md-input:-ms-input-placeholder{color:\\\"{{warn-500-contrast-secondary}}\\\"}md-toolbar.md-THEME_NAME-theme:not(.md-menu-toolbar).md-warn md-input-container[md-no-float].md-input-focused .md-input::-ms-input-placeholder{color:\\\"{{warn-500-contrast-secondary}}\\\"}md-toolbar.md-THEME_NAME-theme:not(.md-menu-toolbar).md-warn md-input-container[md-no-float].md-input-focused .md-input::placeholder{color:\\\"{{warn-500-contrast-secondary}}\\\"}md-toolbar.md-THEME_NAME-theme:not(.md-menu-toolbar).md-warn md-input-container[md-no-float].md-input-focused .md-input:-moz-placeholder,md-toolbar.md-THEME_NAME-theme:not(.md-menu-toolbar).md-warn md-input-container[md-no-float].md-input-focused .md-input::-moz-placeholder{color:\\\"{{warn-500-contrast-secondary}}\\\";opacity:1}md-toolbar.md-THEME_NAME-theme:not(.md-menu-toolbar).md-warn md-input-container[md-no-float]:not(.md-input-invalid).md-input-focused .md-input,md-toolbar.md-THEME_NAME-theme:not(.md-menu-toolbar).md-warn md-input-container[md-no-float]:not(.md-input-invalid).md-input-resized .md-input{border-color:\\\"{{primary-color}}\\\"}md-toolbar.md-THEME_NAME-theme:not(.md-menu-toolbar).md-warn md-input-container[md-no-float]:not(.md-input-invalid).md-input-focused.md-accent .md-input{border-color:\\\"{{accent-color}}\\\"}md-toolbar.md-THEME_NAME-theme:not(.md-menu-toolbar).md-warn md-input-container[md-no-float]:not(.md-input-invalid).md-input-focused.md-warn .md-input{border-color:\\\"{{warn-500-contrast}}\\\"}.md-panel.md-tooltip.md-THEME_NAME-theme{background-color:\\\"{{background-700}}\\\";color:\\\"{{background-700-contrast}}\\\"}body.md-THEME_NAME-theme,html.md-THEME_NAME-theme{background-color:\\\"{{background-color}}\\\";color:\\\"{{foreground-1}}\\\"}\"); \n})();\n\n\n})(window, window.angular);;window.ngMaterial={version:{full: \"1.2.5\"}};\n//! moment.js\n//! version : 2.30.1\n//! authors : Tim Wood, Iskren Chernev, Moment.js contributors\n//! license : MIT\n//! momentjs.com\n\n;(function (global, factory) {\n    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n    typeof define === 'function' && define.amd ? define(factory) :\n    global.moment = factory()\n}(this, (function () { 'use strict';\n\n    var hookCallback;\n\n    function hooks() {\n        return hookCallback.apply(null, arguments);\n    }\n\n    // This is done to register the method called with moment()\n    // without creating circular dependencies.\n    function setHookCallback(callback) {\n        hookCallback = callback;\n    }\n\n    function isArray(input) {\n        return (\n            input instanceof Array ||\n            Object.prototype.toString.call(input) === '[object Array]'\n        );\n    }\n\n    function isObject(input) {\n        // IE8 will treat undefined and null as object if it wasn't for\n        // input != null\n        return (\n            input != null &&\n            Object.prototype.toString.call(input) === '[object Object]'\n        );\n    }\n\n    function hasOwnProp(a, b) {\n        return Object.prototype.hasOwnProperty.call(a, b);\n    }\n\n    function isObjectEmpty(obj) {\n        if (Object.getOwnPropertyNames) {\n            return Object.getOwnPropertyNames(obj).length === 0;\n        } else {\n            var k;\n            for (k in obj) {\n                if (hasOwnProp(obj, k)) {\n                    return false;\n                }\n            }\n            return true;\n        }\n    }\n\n    function isUndefined(input) {\n        return input === void 0;\n    }\n\n    function isNumber(input) {\n        return (\n            typeof input === 'number' ||\n            Object.prototype.toString.call(input) === '[object Number]'\n        );\n    }\n\n    function isDate(input) {\n        return (\n            input instanceof Date ||\n            Object.prototype.toString.call(input) === '[object Date]'\n        );\n    }\n\n    function map(arr, fn) {\n        var res = [],\n            i,\n            arrLen = arr.length;\n        for (i = 0; i < arrLen; ++i) {\n            res.push(fn(arr[i], i));\n        }\n        return res;\n    }\n\n    function extend(a, b) {\n        for (var i in b) {\n            if (hasOwnProp(b, i)) {\n                a[i] = b[i];\n            }\n        }\n\n        if (hasOwnProp(b, 'toString')) {\n            a.toString = b.toString;\n        }\n\n        if (hasOwnProp(b, 'valueOf')) {\n            a.valueOf = b.valueOf;\n        }\n\n        return a;\n    }\n\n    function createUTC(input, format, locale, strict) {\n        return createLocalOrUTC(input, format, locale, strict, true).utc();\n    }\n\n    function defaultParsingFlags() {\n        // We need to deep clone this object.\n        return {\n            empty: false,\n            unusedTokens: [],\n            unusedInput: [],\n            overflow: -2,\n            charsLeftOver: 0,\n            nullInput: false,\n            invalidEra: null,\n            invalidMonth: null,\n            invalidFormat: false,\n            userInvalidated: false,\n            iso: false,\n            parsedDateParts: [],\n            era: null,\n            meridiem: null,\n            rfc2822: false,\n            weekdayMismatch: false,\n        };\n    }\n\n    function getParsingFlags(m) {\n        if (m._pf == null) {\n            m._pf = defaultParsingFlags();\n        }\n        return m._pf;\n    }\n\n    var some;\n    if (Array.prototype.some) {\n        some = Array.prototype.some;\n    } else {\n        some = function (fun) {\n            var t = Object(this),\n                len = t.length >>> 0,\n                i;\n\n            for (i = 0; i < len; i++) {\n                if (i in t && fun.call(this, t[i], i, t)) {\n                    return true;\n                }\n            }\n\n            return false;\n        };\n    }\n\n    function isValid(m) {\n        var flags = null,\n            parsedParts = false,\n            isNowValid = m._d && !isNaN(m._d.getTime());\n        if (isNowValid) {\n            flags = getParsingFlags(m);\n            parsedParts = some.call(flags.parsedDateParts, function (i) {\n                return i != null;\n            });\n            isNowValid =\n                flags.overflow < 0 &&\n                !flags.empty &&\n                !flags.invalidEra &&\n                !flags.invalidMonth &&\n                !flags.invalidWeekday &&\n                !flags.weekdayMismatch &&\n                !flags.nullInput &&\n                !flags.invalidFormat &&\n                !flags.userInvalidated &&\n                (!flags.meridiem || (flags.meridiem && parsedParts));\n            if (m._strict) {\n                isNowValid =\n                    isNowValid &&\n                    flags.charsLeftOver === 0 &&\n                    flags.unusedTokens.length === 0 &&\n                    flags.bigHour === undefined;\n            }\n        }\n        if (Object.isFrozen == null || !Object.isFrozen(m)) {\n            m._isValid = isNowValid;\n        } else {\n            return isNowValid;\n        }\n        return m._isValid;\n    }\n\n    function createInvalid(flags) {\n        var m = createUTC(NaN);\n        if (flags != null) {\n            extend(getParsingFlags(m), flags);\n        } else {\n            getParsingFlags(m).userInvalidated = true;\n        }\n\n        return m;\n    }\n\n    // Plugins that add properties should also add the key here (null value),\n    // so we can properly clone ourselves.\n    var momentProperties = (hooks.momentProperties = []),\n        updateInProgress = false;\n\n    function copyConfig(to, from) {\n        var i,\n            prop,\n            val,\n            momentPropertiesLen = momentProperties.length;\n\n        if (!isUndefined(from._isAMomentObject)) {\n            to._isAMomentObject = from._isAMomentObject;\n        }\n        if (!isUndefined(from._i)) {\n            to._i = from._i;\n        }\n        if (!isUndefined(from._f)) {\n            to._f = from._f;\n        }\n        if (!isUndefined(from._l)) {\n            to._l = from._l;\n        }\n        if (!isUndefined(from._strict)) {\n            to._strict = from._strict;\n        }\n        if (!isUndefined(from._tzm)) {\n            to._tzm = from._tzm;\n        }\n        if (!isUndefined(from._isUTC)) {\n            to._isUTC = from._isUTC;\n        }\n        if (!isUndefined(from._offset)) {\n            to._offset = from._offset;\n        }\n        if (!isUndefined(from._pf)) {\n            to._pf = getParsingFlags(from);\n        }\n        if (!isUndefined(from._locale)) {\n            to._locale = from._locale;\n        }\n\n        if (momentPropertiesLen > 0) {\n            for (i = 0; i < momentPropertiesLen; i++) {\n                prop = momentProperties[i];\n                val = from[prop];\n                if (!isUndefined(val)) {\n                    to[prop] = val;\n                }\n            }\n        }\n\n        return to;\n    }\n\n    // Moment prototype object\n    function Moment(config) {\n        copyConfig(this, config);\n        this._d = new Date(config._d != null ? config._d.getTime() : NaN);\n        if (!this.isValid()) {\n            this._d = new Date(NaN);\n        }\n        // Prevent infinite loop in case updateOffset creates new moment\n        // objects.\n        if (updateInProgress === false) {\n            updateInProgress = true;\n            hooks.updateOffset(this);\n            updateInProgress = false;\n        }\n    }\n\n    function isMoment(obj) {\n        return (\n            obj instanceof Moment || (obj != null && obj._isAMomentObject != null)\n        );\n    }\n\n    function warn(msg) {\n        if (\n            hooks.suppressDeprecationWarnings === false &&\n            typeof console !== 'undefined' &&\n            console.warn\n        ) {\n            console.warn('Deprecation warning: ' + msg);\n        }\n    }\n\n    function deprecate(msg, fn) {\n        var firstTime = true;\n\n        return extend(function () {\n            if (hooks.deprecationHandler != null) {\n                hooks.deprecationHandler(null, msg);\n            }\n            if (firstTime) {\n                var args = [],\n                    arg,\n                    i,\n                    key,\n                    argLen = arguments.length;\n                for (i = 0; i < argLen; i++) {\n                    arg = '';\n                    if (typeof arguments[i] === 'object') {\n                        arg += '\\n[' + i + '] ';\n                        for (key in arguments[0]) {\n                            if (hasOwnProp(arguments[0], key)) {\n                                arg += key + ': ' + arguments[0][key] + ', ';\n                            }\n                        }\n                        arg = arg.slice(0, -2); // Remove trailing comma and space\n                    } else {\n                        arg = arguments[i];\n                    }\n                    args.push(arg);\n                }\n                warn(\n                    msg +\n                        '\\nArguments: ' +\n                        Array.prototype.slice.call(args).join('') +\n                        '\\n' +\n                        new Error().stack\n                );\n                firstTime = false;\n            }\n            return fn.apply(this, arguments);\n        }, fn);\n    }\n\n    var deprecations = {};\n\n    function deprecateSimple(name, msg) {\n        if (hooks.deprecationHandler != null) {\n            hooks.deprecationHandler(name, msg);\n        }\n        if (!deprecations[name]) {\n            warn(msg);\n            deprecations[name] = true;\n        }\n    }\n\n    hooks.suppressDeprecationWarnings = false;\n    hooks.deprecationHandler = null;\n\n    function isFunction(input) {\n        return (\n            (typeof Function !== 'undefined' && input instanceof Function) ||\n            Object.prototype.toString.call(input) === '[object Function]'\n        );\n    }\n\n    function set(config) {\n        var prop, i;\n        for (i in config) {\n            if (hasOwnProp(config, i)) {\n                prop = config[i];\n                if (isFunction(prop)) {\n                    this[i] = prop;\n                } else {\n                    this['_' + i] = prop;\n                }\n            }\n        }\n        this._config = config;\n        // Lenient ordinal parsing accepts just a number in addition to\n        // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.\n        // TODO: Remove \"ordinalParse\" fallback in next major release.\n        this._dayOfMonthOrdinalParseLenient = new RegExp(\n            (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +\n                '|' +\n                /\\d{1,2}/.source\n        );\n    }\n\n    function mergeConfigs(parentConfig, childConfig) {\n        var res = extend({}, parentConfig),\n            prop;\n        for (prop in childConfig) {\n            if (hasOwnProp(childConfig, prop)) {\n                if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {\n                    res[prop] = {};\n                    extend(res[prop], parentConfig[prop]);\n                    extend(res[prop], childConfig[prop]);\n                } else if (childConfig[prop] != null) {\n                    res[prop] = childConfig[prop];\n                } else {\n                    delete res[prop];\n                }\n            }\n        }\n        for (prop in parentConfig) {\n            if (\n                hasOwnProp(parentConfig, prop) &&\n                !hasOwnProp(childConfig, prop) &&\n                isObject(parentConfig[prop])\n            ) {\n                // make sure changes to properties don't modify parent config\n                res[prop] = extend({}, res[prop]);\n            }\n        }\n        return res;\n    }\n\n    function Locale(config) {\n        if (config != null) {\n            this.set(config);\n        }\n    }\n\n    var keys;\n\n    if (Object.keys) {\n        keys = Object.keys;\n    } else {\n        keys = function (obj) {\n            var i,\n                res = [];\n            for (i in obj) {\n                if (hasOwnProp(obj, i)) {\n                    res.push(i);\n                }\n            }\n            return res;\n        };\n    }\n\n    var defaultCalendar = {\n        sameDay: '[Today at] LT',\n        nextDay: '[Tomorrow at] LT',\n        nextWeek: 'dddd [at] LT',\n        lastDay: '[Yesterday at] LT',\n        lastWeek: '[Last] dddd [at] LT',\n        sameElse: 'L',\n    };\n\n    function calendar(key, mom, now) {\n        var output = this._calendar[key] || this._calendar['sameElse'];\n        return isFunction(output) ? output.call(mom, now) : output;\n    }\n\n    function zeroFill(number, targetLength, forceSign) {\n        var absNumber = '' + Math.abs(number),\n            zerosToFill = targetLength - absNumber.length,\n            sign = number >= 0;\n        return (\n            (sign ? (forceSign ? '+' : '') : '-') +\n            Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) +\n            absNumber\n        );\n    }\n\n    var formattingTokens =\n            /(\\[[^\\[]*\\])|(\\\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|N{1,5}|YYYYYY|YYYYY|YYYY|YY|y{2,4}|yo?|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g,\n        localFormattingTokens = /(\\[[^\\[]*\\])|(\\\\)?(LTS|LT|LL?L?L?|l{1,4})/g,\n        formatFunctions = {},\n        formatTokenFunctions = {};\n\n    // token:    'M'\n    // padded:   ['MM', 2]\n    // ordinal:  'Mo'\n    // callback: function () { this.month() + 1 }\n    function addFormatToken(token, padded, ordinal, callback) {\n        var func = callback;\n        if (typeof callback === 'string') {\n            func = function () {\n                return this[callback]();\n            };\n        }\n        if (token) {\n            formatTokenFunctions[token] = func;\n        }\n        if (padded) {\n            formatTokenFunctions[padded[0]] = function () {\n                return zeroFill(func.apply(this, arguments), padded[1], padded[2]);\n            };\n        }\n        if (ordinal) {\n            formatTokenFunctions[ordinal] = function () {\n                return this.localeData().ordinal(\n                    func.apply(this, arguments),\n                    token\n                );\n            };\n        }\n    }\n\n    function removeFormattingTokens(input) {\n        if (input.match(/\\[[\\s\\S]/)) {\n            return input.replace(/^\\[|\\]$/g, '');\n        }\n        return input.replace(/\\\\/g, '');\n    }\n\n    function makeFormatFunction(format) {\n        var array = format.match(formattingTokens),\n            i,\n            length;\n\n        for (i = 0, length = array.length; i < length; i++) {\n            if (formatTokenFunctions[array[i]]) {\n                array[i] = formatTokenFunctions[array[i]];\n            } else {\n                array[i] = removeFormattingTokens(array[i]);\n            }\n        }\n\n        return function (mom) {\n            var output = '',\n                i;\n            for (i = 0; i < length; i++) {\n                output += isFunction(array[i])\n                    ? array[i].call(mom, format)\n                    : array[i];\n            }\n            return output;\n        };\n    }\n\n    // format date using native date object\n    function formatMoment(m, format) {\n        if (!m.isValid()) {\n            return m.localeData().invalidDate();\n        }\n\n        format = expandFormat(format, m.localeData());\n        formatFunctions[format] =\n            formatFunctions[format] || makeFormatFunction(format);\n\n        return formatFunctions[format](m);\n    }\n\n    function expandFormat(format, locale) {\n        var i = 5;\n\n        function replaceLongDateFormatTokens(input) {\n            return locale.longDateFormat(input) || input;\n        }\n\n        localFormattingTokens.lastIndex = 0;\n        while (i >= 0 && localFormattingTokens.test(format)) {\n            format = format.replace(\n                localFormattingTokens,\n                replaceLongDateFormatTokens\n            );\n            localFormattingTokens.lastIndex = 0;\n            i -= 1;\n        }\n\n        return format;\n    }\n\n    var defaultLongDateFormat = {\n        LTS: 'h:mm:ss A',\n        LT: 'h:mm A',\n        L: 'MM/DD/YYYY',\n        LL: 'MMMM D, YYYY',\n        LLL: 'MMMM D, YYYY h:mm A',\n        LLLL: 'dddd, MMMM D, YYYY h:mm A',\n    };\n\n    function longDateFormat(key) {\n        var format = this._longDateFormat[key],\n            formatUpper = this._longDateFormat[key.toUpperCase()];\n\n        if (format || !formatUpper) {\n            return format;\n        }\n\n        this._longDateFormat[key] = formatUpper\n            .match(formattingTokens)\n            .map(function (tok) {\n                if (\n                    tok === 'MMMM' ||\n                    tok === 'MM' ||\n                    tok === 'DD' ||\n                    tok === 'dddd'\n                ) {\n                    return tok.slice(1);\n                }\n                return tok;\n            })\n            .join('');\n\n        return this._longDateFormat[key];\n    }\n\n    var defaultInvalidDate = 'Invalid date';\n\n    function invalidDate() {\n        return this._invalidDate;\n    }\n\n    var defaultOrdinal = '%d',\n        defaultDayOfMonthOrdinalParse = /\\d{1,2}/;\n\n    function ordinal(number) {\n        return this._ordinal.replace('%d', number);\n    }\n\n    var defaultRelativeTime = {\n        future: 'in %s',\n        past: '%s ago',\n        s: 'a few seconds',\n        ss: '%d seconds',\n        m: 'a minute',\n        mm: '%d minutes',\n        h: 'an hour',\n        hh: '%d hours',\n        d: 'a day',\n        dd: '%d days',\n        w: 'a week',\n        ww: '%d weeks',\n        M: 'a month',\n        MM: '%d months',\n        y: 'a year',\n        yy: '%d years',\n    };\n\n    function relativeTime(number, withoutSuffix, string, isFuture) {\n        var output = this._relativeTime[string];\n        return isFunction(output)\n            ? output(number, withoutSuffix, string, isFuture)\n            : output.replace(/%d/i, number);\n    }\n\n    function pastFuture(diff, output) {\n        var format = this._relativeTime[diff > 0 ? 'future' : 'past'];\n        return isFunction(format) ? format(output) : format.replace(/%s/i, output);\n    }\n\n    var aliases = {\n        D: 'date',\n        dates: 'date',\n        date: 'date',\n        d: 'day',\n        days: 'day',\n        day: 'day',\n        e: 'weekday',\n        weekdays: 'weekday',\n        weekday: 'weekday',\n        E: 'isoWeekday',\n        isoweekdays: 'isoWeekday',\n        isoweekday: 'isoWeekday',\n        DDD: 'dayOfYear',\n        dayofyears: 'dayOfYear',\n        dayofyear: 'dayOfYear',\n        h: 'hour',\n        hours: 'hour',\n        hour: 'hour',\n        ms: 'millisecond',\n        milliseconds: 'millisecond',\n        millisecond: 'millisecond',\n        m: 'minute',\n        minutes: 'minute',\n        minute: 'minute',\n        M: 'month',\n        months: 'month',\n        month: 'month',\n        Q: 'quarter',\n        quarters: 'quarter',\n        quarter: 'quarter',\n        s: 'second',\n        seconds: 'second',\n        second: 'second',\n        gg: 'weekYear',\n        weekyears: 'weekYear',\n        weekyear: 'weekYear',\n        GG: 'isoWeekYear',\n        isoweekyears: 'isoWeekYear',\n        isoweekyear: 'isoWeekYear',\n        w: 'week',\n        weeks: 'week',\n        week: 'week',\n        W: 'isoWeek',\n        isoweeks: 'isoWeek',\n        isoweek: 'isoWeek',\n        y: 'year',\n        years: 'year',\n        year: 'year',\n    };\n\n    function normalizeUnits(units) {\n        return typeof units === 'string'\n            ? aliases[units] || aliases[units.toLowerCase()]\n            : undefined;\n    }\n\n    function normalizeObjectUnits(inputObject) {\n        var normalizedInput = {},\n            normalizedProp,\n            prop;\n\n        for (prop in inputObject) {\n            if (hasOwnProp(inputObject, prop)) {\n                normalizedProp = normalizeUnits(prop);\n                if (normalizedProp) {\n                    normalizedInput[normalizedProp] = inputObject[prop];\n                }\n            }\n        }\n\n        return normalizedInput;\n    }\n\n    var priorities = {\n        date: 9,\n        day: 11,\n        weekday: 11,\n        isoWeekday: 11,\n        dayOfYear: 4,\n        hour: 13,\n        millisecond: 16,\n        minute: 14,\n        month: 8,\n        quarter: 7,\n        second: 15,\n        weekYear: 1,\n        isoWeekYear: 1,\n        week: 5,\n        isoWeek: 5,\n        year: 1,\n    };\n\n    function getPrioritizedUnits(unitsObj) {\n        var units = [],\n            u;\n        for (u in unitsObj) {\n            if (hasOwnProp(unitsObj, u)) {\n                units.push({ unit: u, priority: priorities[u] });\n            }\n        }\n        units.sort(function (a, b) {\n            return a.priority - b.priority;\n        });\n        return units;\n    }\n\n    var match1 = /\\d/, //       0 - 9\n        match2 = /\\d\\d/, //      00 - 99\n        match3 = /\\d{3}/, //     000 - 999\n        match4 = /\\d{4}/, //    0000 - 9999\n        match6 = /[+-]?\\d{6}/, // -999999 - 999999\n        match1to2 = /\\d\\d?/, //       0 - 99\n        match3to4 = /\\d\\d\\d\\d?/, //     999 - 9999\n        match5to6 = /\\d\\d\\d\\d\\d\\d?/, //   99999 - 999999\n        match1to3 = /\\d{1,3}/, //       0 - 999\n        match1to4 = /\\d{1,4}/, //       0 - 9999\n        match1to6 = /[+-]?\\d{1,6}/, // -999999 - 999999\n        matchUnsigned = /\\d+/, //       0 - inf\n        matchSigned = /[+-]?\\d+/, //    -inf - inf\n        matchOffset = /Z|[+-]\\d\\d:?\\d\\d/gi, // +00:00 -00:00 +0000 -0000 or Z\n        matchShortOffset = /Z|[+-]\\d\\d(?::?\\d\\d)?/gi, // +00 -00 +00:00 -00:00 +0000 -0000 or Z\n        matchTimestamp = /[+-]?\\d+(\\.\\d{1,3})?/, // 123456789 123456789.123\n        // any word (or two) characters or numbers including two/three word month in arabic.\n        // includes scottish gaelic two word and hyphenated months\n        matchWord =\n            /[0-9]{0,256}['a-z\\u00A0-\\u05FF\\u0700-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFF07\\uFF10-\\uFFEF]{1,256}|[\\u0600-\\u06FF\\/]{1,256}(\\s*?[\\u0600-\\u06FF]{1,256}){1,2}/i,\n        match1to2NoLeadingZero = /^[1-9]\\d?/, //         1-99\n        match1to2HasZero = /^([1-9]\\d|\\d)/, //           0-99\n        regexes;\n\n    regexes = {};\n\n    function addRegexToken(token, regex, strictRegex) {\n        regexes[token] = isFunction(regex)\n            ? regex\n            : function (isStrict, localeData) {\n                  return isStrict && strictRegex ? strictRegex : regex;\n              };\n    }\n\n    function getParseRegexForToken(token, config) {\n        if (!hasOwnProp(regexes, token)) {\n            return new RegExp(unescapeFormat(token));\n        }\n\n        return regexes[token](config._strict, config._locale);\n    }\n\n    // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript\n    function unescapeFormat(s) {\n        return regexEscape(\n            s\n                .replace('\\\\', '')\n                .replace(\n                    /\\\\(\\[)|\\\\(\\])|\\[([^\\]\\[]*)\\]|\\\\(.)/g,\n                    function (matched, p1, p2, p3, p4) {\n                        return p1 || p2 || p3 || p4;\n                    }\n                )\n        );\n    }\n\n    function regexEscape(s) {\n        return s.replace(/[-\\/\\\\^$*+?.()|[\\]{}]/g, '\\\\$&');\n    }\n\n    function absFloor(number) {\n        if (number < 0) {\n            // -0 -> 0\n            return Math.ceil(number) || 0;\n        } else {\n            return Math.floor(number);\n        }\n    }\n\n    function toInt(argumentForCoercion) {\n        var coercedNumber = +argumentForCoercion,\n            value = 0;\n\n        if (coercedNumber !== 0 && isFinite(coercedNumber)) {\n            value = absFloor(coercedNumber);\n        }\n\n        return value;\n    }\n\n    var tokens = {};\n\n    function addParseToken(token, callback) {\n        var i,\n            func = callback,\n            tokenLen;\n        if (typeof token === 'string') {\n            token = [token];\n        }\n        if (isNumber(callback)) {\n            func = function (input, array) {\n                array[callback] = toInt(input);\n            };\n        }\n        tokenLen = token.length;\n        for (i = 0; i < tokenLen; i++) {\n            tokens[token[i]] = func;\n        }\n    }\n\n    function addWeekParseToken(token, callback) {\n        addParseToken(token, function (input, array, config, token) {\n            config._w = config._w || {};\n            callback(input, config._w, config, token);\n        });\n    }\n\n    function addTimeToArrayFromToken(token, input, config) {\n        if (input != null && hasOwnProp(tokens, token)) {\n            tokens[token](input, config._a, config, token);\n        }\n    }\n\n    function isLeapYear(year) {\n        return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;\n    }\n\n    var YEAR = 0,\n        MONTH = 1,\n        DATE = 2,\n        HOUR = 3,\n        MINUTE = 4,\n        SECOND = 5,\n        MILLISECOND = 6,\n        WEEK = 7,\n        WEEKDAY = 8;\n\n    // FORMATTING\n\n    addFormatToken('Y', 0, 0, function () {\n        var y = this.year();\n        return y <= 9999 ? zeroFill(y, 4) : '+' + y;\n    });\n\n    addFormatToken(0, ['YY', 2], 0, function () {\n        return this.year() % 100;\n    });\n\n    addFormatToken(0, ['YYYY', 4], 0, 'year');\n    addFormatToken(0, ['YYYYY', 5], 0, 'year');\n    addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');\n\n    // PARSING\n\n    addRegexToken('Y', matchSigned);\n    addRegexToken('YY', match1to2, match2);\n    addRegexToken('YYYY', match1to4, match4);\n    addRegexToken('YYYYY', match1to6, match6);\n    addRegexToken('YYYYYY', match1to6, match6);\n\n    addParseToken(['YYYYY', 'YYYYYY'], YEAR);\n    addParseToken('YYYY', function (input, array) {\n        array[YEAR] =\n            input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);\n    });\n    addParseToken('YY', function (input, array) {\n        array[YEAR] = hooks.parseTwoDigitYear(input);\n    });\n    addParseToken('Y', function (input, array) {\n        array[YEAR] = parseInt(input, 10);\n    });\n\n    // HELPERS\n\n    function daysInYear(year) {\n        return isLeapYear(year) ? 366 : 365;\n    }\n\n    // HOOKS\n\n    hooks.parseTwoDigitYear = function (input) {\n        return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);\n    };\n\n    // MOMENTS\n\n    var getSetYear = makeGetSet('FullYear', true);\n\n    function getIsLeapYear() {\n        return isLeapYear(this.year());\n    }\n\n    function makeGetSet(unit, keepTime) {\n        return function (value) {\n            if (value != null) {\n                set$1(this, unit, value);\n                hooks.updateOffset(this, keepTime);\n                return this;\n            } else {\n                return get(this, unit);\n            }\n        };\n    }\n\n    function get(mom, unit) {\n        if (!mom.isValid()) {\n            return NaN;\n        }\n\n        var d = mom._d,\n            isUTC = mom._isUTC;\n\n        switch (unit) {\n            case 'Milliseconds':\n                return isUTC ? d.getUTCMilliseconds() : d.getMilliseconds();\n            case 'Seconds':\n                return isUTC ? d.getUTCSeconds() : d.getSeconds();\n            case 'Minutes':\n                return isUTC ? d.getUTCMinutes() : d.getMinutes();\n            case 'Hours':\n                return isUTC ? d.getUTCHours() : d.getHours();\n            case 'Date':\n                return isUTC ? d.getUTCDate() : d.getDate();\n            case 'Day':\n                return isUTC ? d.getUTCDay() : d.getDay();\n            case 'Month':\n                return isUTC ? d.getUTCMonth() : d.getMonth();\n            case 'FullYear':\n                return isUTC ? d.getUTCFullYear() : d.getFullYear();\n            default:\n                return NaN; // Just in case\n        }\n    }\n\n    function set$1(mom, unit, value) {\n        var d, isUTC, year, month, date;\n\n        if (!mom.isValid() || isNaN(value)) {\n            return;\n        }\n\n        d = mom._d;\n        isUTC = mom._isUTC;\n\n        switch (unit) {\n            case 'Milliseconds':\n                return void (isUTC\n                    ? d.setUTCMilliseconds(value)\n                    : d.setMilliseconds(value));\n            case 'Seconds':\n                return void (isUTC ? d.setUTCSeconds(value) : d.setSeconds(value));\n            case 'Minutes':\n                return void (isUTC ? d.setUTCMinutes(value) : d.setMinutes(value));\n            case 'Hours':\n                return void (isUTC ? d.setUTCHours(value) : d.setHours(value));\n            case 'Date':\n                return void (isUTC ? d.setUTCDate(value) : d.setDate(value));\n            // case 'Day': // Not real\n            //    return void (isUTC ? d.setUTCDay(value) : d.setDay(value));\n            // case 'Month': // Not used because we need to pass two variables\n            //     return void (isUTC ? d.setUTCMonth(value) : d.setMonth(value));\n            case 'FullYear':\n                break; // See below ...\n            default:\n                return; // Just in case\n        }\n\n        year = value;\n        month = mom.month();\n        date = mom.date();\n        date = date === 29 && month === 1 && !isLeapYear(year) ? 28 : date;\n        void (isUTC\n            ? d.setUTCFullYear(year, month, date)\n            : d.setFullYear(year, month, date));\n    }\n\n    // MOMENTS\n\n    function stringGet(units) {\n        units = normalizeUnits(units);\n        if (isFunction(this[units])) {\n            return this[units]();\n        }\n        return this;\n    }\n\n    function stringSet(units, value) {\n        if (typeof units === 'object') {\n            units = normalizeObjectUnits(units);\n            var prioritized = getPrioritizedUnits(units),\n                i,\n                prioritizedLen = prioritized.length;\n            for (i = 0; i < prioritizedLen; i++) {\n                this[prioritized[i].unit](units[prioritized[i].unit]);\n            }\n        } else {\n            units = normalizeUnits(units);\n            if (isFunction(this[units])) {\n                return this[units](value);\n            }\n        }\n        return this;\n    }\n\n    function mod(n, x) {\n        return ((n % x) + x) % x;\n    }\n\n    var indexOf;\n\n    if (Array.prototype.indexOf) {\n        indexOf = Array.prototype.indexOf;\n    } else {\n        indexOf = function (o) {\n            // I know\n            var i;\n            for (i = 0; i < this.length; ++i) {\n                if (this[i] === o) {\n                    return i;\n                }\n            }\n            return -1;\n        };\n    }\n\n    function daysInMonth(year, month) {\n        if (isNaN(year) || isNaN(month)) {\n            return NaN;\n        }\n        var modMonth = mod(month, 12);\n        year += (month - modMonth) / 12;\n        return modMonth === 1\n            ? isLeapYear(year)\n                ? 29\n                : 28\n            : 31 - ((modMonth % 7) % 2);\n    }\n\n    // FORMATTING\n\n    addFormatToken('M', ['MM', 2], 'Mo', function () {\n        return this.month() + 1;\n    });\n\n    addFormatToken('MMM', 0, 0, function (format) {\n        return this.localeData().monthsShort(this, format);\n    });\n\n    addFormatToken('MMMM', 0, 0, function (format) {\n        return this.localeData().months(this, format);\n    });\n\n    // PARSING\n\n    addRegexToken('M', match1to2, match1to2NoLeadingZero);\n    addRegexToken('MM', match1to2, match2);\n    addRegexToken('MMM', function (isStrict, locale) {\n        return locale.monthsShortRegex(isStrict);\n    });\n    addRegexToken('MMMM', function (isStrict, locale) {\n        return locale.monthsRegex(isStrict);\n    });\n\n    addParseToken(['M', 'MM'], function (input, array) {\n        array[MONTH] = toInt(input) - 1;\n    });\n\n    addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {\n        var month = config._locale.monthsParse(input, token, config._strict);\n        // if we didn't find a month name, mark the date as invalid.\n        if (month != null) {\n            array[MONTH] = month;\n        } else {\n            getParsingFlags(config).invalidMonth = input;\n        }\n    });\n\n    // LOCALES\n\n    var defaultLocaleMonths =\n            'January_February_March_April_May_June_July_August_September_October_November_December'.split(\n                '_'\n            ),\n        defaultLocaleMonthsShort =\n            'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),\n        MONTHS_IN_FORMAT = /D[oD]?(\\[[^\\[\\]]*\\]|\\s)+MMMM?/,\n        defaultMonthsShortRegex = matchWord,\n        defaultMonthsRegex = matchWord;\n\n    function localeMonths(m, format) {\n        if (!m) {\n            return isArray(this._months)\n                ? this._months\n                : this._months['standalone'];\n        }\n        return isArray(this._months)\n            ? this._months[m.month()]\n            : this._months[\n                  (this._months.isFormat || MONTHS_IN_FORMAT).test(format)\n                      ? 'format'\n                      : 'standalone'\n              ][m.month()];\n    }\n\n    function localeMonthsShort(m, format) {\n        if (!m) {\n            return isArray(this._monthsShort)\n                ? this._monthsShort\n                : this._monthsShort['standalone'];\n        }\n        return isArray(this._monthsShort)\n            ? this._monthsShort[m.month()]\n            : this._monthsShort[\n                  MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'\n              ][m.month()];\n    }\n\n    function handleStrictParse(monthName, format, strict) {\n        var i,\n            ii,\n            mom,\n            llc = monthName.toLocaleLowerCase();\n        if (!this._monthsParse) {\n            // this is not used\n            this._monthsParse = [];\n            this._longMonthsParse = [];\n            this._shortMonthsParse = [];\n            for (i = 0; i < 12; ++i) {\n                mom = createUTC([2000, i]);\n                this._shortMonthsParse[i] = this.monthsShort(\n                    mom,\n                    ''\n                ).toLocaleLowerCase();\n                this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();\n            }\n        }\n\n        if (strict) {\n            if (format === 'MMM') {\n                ii = indexOf.call(this._shortMonthsParse, llc);\n                return ii !== -1 ? ii : null;\n            } else {\n                ii = indexOf.call(this._longMonthsParse, llc);\n                return ii !== -1 ? ii : null;\n            }\n        } else {\n            if (format === 'MMM') {\n                ii = indexOf.call(this._shortMonthsParse, llc);\n                if (ii !== -1) {\n                    return ii;\n                }\n                ii = indexOf.call(this._longMonthsParse, llc);\n                return ii !== -1 ? ii : null;\n            } else {\n                ii = indexOf.call(this._longMonthsParse, llc);\n                if (ii !== -1) {\n                    return ii;\n                }\n                ii = indexOf.call(this._shortMonthsParse, llc);\n                return ii !== -1 ? ii : null;\n            }\n        }\n    }\n\n    function localeMonthsParse(monthName, format, strict) {\n        var i, mom, regex;\n\n        if (this._monthsParseExact) {\n            return handleStrictParse.call(this, monthName, format, strict);\n        }\n\n        if (!this._monthsParse) {\n            this._monthsParse = [];\n            this._longMonthsParse = [];\n            this._shortMonthsParse = [];\n        }\n\n        // TODO: add sorting\n        // Sorting makes sure if one month (or abbr) is a prefix of another\n        // see sorting in computeMonthsParse\n        for (i = 0; i < 12; i++) {\n            // make the regex if we don't have it already\n            mom = createUTC([2000, i]);\n            if (strict && !this._longMonthsParse[i]) {\n                this._longMonthsParse[i] = new RegExp(\n                    '^' + this.months(mom, '').replace('.', '') + '$',\n                    'i'\n                );\n                this._shortMonthsParse[i] = new RegExp(\n                    '^' + this.monthsShort(mom, '').replace('.', '') + '$',\n                    'i'\n                );\n            }\n            if (!strict && !this._monthsParse[i]) {\n                regex =\n                    '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');\n                this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');\n            }\n            // test the regex\n            if (\n                strict &&\n                format === 'MMMM' &&\n                this._longMonthsParse[i].test(monthName)\n            ) {\n                return i;\n            } else if (\n                strict &&\n                format === 'MMM' &&\n                this._shortMonthsParse[i].test(monthName)\n            ) {\n                return i;\n            } else if (!strict && this._monthsParse[i].test(monthName)) {\n                return i;\n            }\n        }\n    }\n\n    // MOMENTS\n\n    function setMonth(mom, value) {\n        if (!mom.isValid()) {\n            // No op\n            return mom;\n        }\n\n        if (typeof value === 'string') {\n            if (/^\\d+$/.test(value)) {\n                value = toInt(value);\n            } else {\n                value = mom.localeData().monthsParse(value);\n                // TODO: Another silent failure?\n                if (!isNumber(value)) {\n                    return mom;\n                }\n            }\n        }\n\n        var month = value,\n            date = mom.date();\n\n        date = date < 29 ? date : Math.min(date, daysInMonth(mom.year(), month));\n        void (mom._isUTC\n            ? mom._d.setUTCMonth(month, date)\n            : mom._d.setMonth(month, date));\n        return mom;\n    }\n\n    function getSetMonth(value) {\n        if (value != null) {\n            setMonth(this, value);\n            hooks.updateOffset(this, true);\n            return this;\n        } else {\n            return get(this, 'Month');\n        }\n    }\n\n    function getDaysInMonth() {\n        return daysInMonth(this.year(), this.month());\n    }\n\n    function monthsShortRegex(isStrict) {\n        if (this._monthsParseExact) {\n            if (!hasOwnProp(this, '_monthsRegex')) {\n                computeMonthsParse.call(this);\n            }\n            if (isStrict) {\n                return this._monthsShortStrictRegex;\n            } else {\n                return this._monthsShortRegex;\n            }\n        } else {\n            if (!hasOwnProp(this, '_monthsShortRegex')) {\n                this._monthsShortRegex = defaultMonthsShortRegex;\n            }\n            return this._monthsShortStrictRegex && isStrict\n                ? this._monthsShortStrictRegex\n                : this._monthsShortRegex;\n        }\n    }\n\n    function monthsRegex(isStrict) {\n        if (this._monthsParseExact) {\n            if (!hasOwnProp(this, '_monthsRegex')) {\n                computeMonthsParse.call(this);\n            }\n            if (isStrict) {\n                return this._monthsStrictRegex;\n            } else {\n                return this._monthsRegex;\n            }\n        } else {\n            if (!hasOwnProp(this, '_monthsRegex')) {\n                this._monthsRegex = defaultMonthsRegex;\n            }\n            return this._monthsStrictRegex && isStrict\n                ? this._monthsStrictRegex\n                : this._monthsRegex;\n        }\n    }\n\n    function computeMonthsParse() {\n        function cmpLenRev(a, b) {\n            return b.length - a.length;\n        }\n\n        var shortPieces = [],\n            longPieces = [],\n            mixedPieces = [],\n            i,\n            mom,\n            shortP,\n            longP;\n        for (i = 0; i < 12; i++) {\n            // make the regex if we don't have it already\n            mom = createUTC([2000, i]);\n            shortP = regexEscape(this.monthsShort(mom, ''));\n            longP = regexEscape(this.months(mom, ''));\n            shortPieces.push(shortP);\n            longPieces.push(longP);\n            mixedPieces.push(longP);\n            mixedPieces.push(shortP);\n        }\n        // Sorting makes sure if one month (or abbr) is a prefix of another it\n        // will match the longer piece.\n        shortPieces.sort(cmpLenRev);\n        longPieces.sort(cmpLenRev);\n        mixedPieces.sort(cmpLenRev);\n\n        this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');\n        this._monthsShortRegex = this._monthsRegex;\n        this._monthsStrictRegex = new RegExp(\n            '^(' + longPieces.join('|') + ')',\n            'i'\n        );\n        this._monthsShortStrictRegex = new RegExp(\n            '^(' + shortPieces.join('|') + ')',\n            'i'\n        );\n    }\n\n    function createDate(y, m, d, h, M, s, ms) {\n        // can't just apply() to create a date:\n        // https://stackoverflow.com/q/181348\n        var date;\n        // the date constructor remaps years 0-99 to 1900-1999\n        if (y < 100 && y >= 0) {\n            // preserve leap years using a full 400 year cycle, then reset\n            date = new Date(y + 400, m, d, h, M, s, ms);\n            if (isFinite(date.getFullYear())) {\n                date.setFullYear(y);\n            }\n        } else {\n            date = new Date(y, m, d, h, M, s, ms);\n        }\n\n        return date;\n    }\n\n    function createUTCDate(y) {\n        var date, args;\n        // the Date.UTC function remaps years 0-99 to 1900-1999\n        if (y < 100 && y >= 0) {\n            args = Array.prototype.slice.call(arguments);\n            // preserve leap years using a full 400 year cycle, then reset\n            args[0] = y + 400;\n            date = new Date(Date.UTC.apply(null, args));\n            if (isFinite(date.getUTCFullYear())) {\n                date.setUTCFullYear(y);\n            }\n        } else {\n            date = new Date(Date.UTC.apply(null, arguments));\n        }\n\n        return date;\n    }\n\n    // start-of-first-week - start-of-year\n    function firstWeekOffset(year, dow, doy) {\n        var // first-week day -- which january is always in the first week (4 for iso, 1 for other)\n            fwd = 7 + dow - doy,\n            // first-week day local weekday -- which local weekday is fwd\n            fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;\n\n        return -fwdlw + fwd - 1;\n    }\n\n    // https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday\n    function dayOfYearFromWeeks(year, week, weekday, dow, doy) {\n        var localWeekday = (7 + weekday - dow) % 7,\n            weekOffset = firstWeekOffset(year, dow, doy),\n            dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,\n            resYear,\n            resDayOfYear;\n\n        if (dayOfYear <= 0) {\n            resYear = year - 1;\n            resDayOfYear = daysInYear(resYear) + dayOfYear;\n        } else if (dayOfYear > daysInYear(year)) {\n            resYear = year + 1;\n            resDayOfYear = dayOfYear - daysInYear(year);\n        } else {\n            resYear = year;\n            resDayOfYear = dayOfYear;\n        }\n\n        return {\n            year: resYear,\n            dayOfYear: resDayOfYear,\n        };\n    }\n\n    function weekOfYear(mom, dow, doy) {\n        var weekOffset = firstWeekOffset(mom.year(), dow, doy),\n            week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,\n            resWeek,\n            resYear;\n\n        if (week < 1) {\n            resYear = mom.year() - 1;\n            resWeek = week + weeksInYear(resYear, dow, doy);\n        } else if (week > weeksInYear(mom.year(), dow, doy)) {\n            resWeek = week - weeksInYear(mom.year(), dow, doy);\n            resYear = mom.year() + 1;\n        } else {\n            resYear = mom.year();\n            resWeek = week;\n        }\n\n        return {\n            week: resWeek,\n            year: resYear,\n        };\n    }\n\n    function weeksInYear(year, dow, doy) {\n        var weekOffset = firstWeekOffset(year, dow, doy),\n            weekOffsetNext = firstWeekOffset(year + 1, dow, doy);\n        return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;\n    }\n\n    // FORMATTING\n\n    addFormatToken('w', ['ww', 2], 'wo', 'week');\n    addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');\n\n    // PARSING\n\n    addRegexToken('w', match1to2, match1to2NoLeadingZero);\n    addRegexToken('ww', match1to2, match2);\n    addRegexToken('W', match1to2, match1to2NoLeadingZero);\n    addRegexToken('WW', match1to2, match2);\n\n    addWeekParseToken(\n        ['w', 'ww', 'W', 'WW'],\n        function (input, week, config, token) {\n            week[token.substr(0, 1)] = toInt(input);\n        }\n    );\n\n    // HELPERS\n\n    // LOCALES\n\n    function localeWeek(mom) {\n        return weekOfYear(mom, this._week.dow, this._week.doy).week;\n    }\n\n    var defaultLocaleWeek = {\n        dow: 0, // Sunday is the first day of the week.\n        doy: 6, // The week that contains Jan 6th is the first week of the year.\n    };\n\n    function localeFirstDayOfWeek() {\n        return this._week.dow;\n    }\n\n    function localeFirstDayOfYear() {\n        return this._week.doy;\n    }\n\n    // MOMENTS\n\n    function getSetWeek(input) {\n        var week = this.localeData().week(this);\n        return input == null ? week : this.add((input - week) * 7, 'd');\n    }\n\n    function getSetISOWeek(input) {\n        var week = weekOfYear(this, 1, 4).week;\n        return input == null ? week : this.add((input - week) * 7, 'd');\n    }\n\n    // FORMATTING\n\n    addFormatToken('d', 0, 'do', 'day');\n\n    addFormatToken('dd', 0, 0, function (format) {\n        return this.localeData().weekdaysMin(this, format);\n    });\n\n    addFormatToken('ddd', 0, 0, function (format) {\n        return this.localeData().weekdaysShort(this, format);\n    });\n\n    addFormatToken('dddd', 0, 0, function (format) {\n        return this.localeData().weekdays(this, format);\n    });\n\n    addFormatToken('e', 0, 0, 'weekday');\n    addFormatToken('E', 0, 0, 'isoWeekday');\n\n    // PARSING\n\n    addRegexToken('d', match1to2);\n    addRegexToken('e', match1to2);\n    addRegexToken('E', match1to2);\n    addRegexToken('dd', function (isStrict, locale) {\n        return locale.weekdaysMinRegex(isStrict);\n    });\n    addRegexToken('ddd', function (isStrict, locale) {\n        return locale.weekdaysShortRegex(isStrict);\n    });\n    addRegexToken('dddd', function (isStrict, locale) {\n        return locale.weekdaysRegex(isStrict);\n    });\n\n    addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {\n        var weekday = config._locale.weekdaysParse(input, token, config._strict);\n        // if we didn't get a weekday name, mark the date as invalid\n        if (weekday != null) {\n            week.d = weekday;\n        } else {\n            getParsingFlags(config).invalidWeekday = input;\n        }\n    });\n\n    addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {\n        week[token] = toInt(input);\n    });\n\n    // HELPERS\n\n    function parseWeekday(input, locale) {\n        if (typeof input !== 'string') {\n            return input;\n        }\n\n        if (!isNaN(input)) {\n            return parseInt(input, 10);\n        }\n\n        input = locale.weekdaysParse(input);\n        if (typeof input === 'number') {\n            return input;\n        }\n\n        return null;\n    }\n\n    function parseIsoWeekday(input, locale) {\n        if (typeof input === 'string') {\n            return locale.weekdaysParse(input) % 7 || 7;\n        }\n        return isNaN(input) ? null : input;\n    }\n\n    // LOCALES\n    function shiftWeekdays(ws, n) {\n        return ws.slice(n, 7).concat(ws.slice(0, n));\n    }\n\n    var defaultLocaleWeekdays =\n            'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),\n        defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),\n        defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),\n        defaultWeekdaysRegex = matchWord,\n        defaultWeekdaysShortRegex = matchWord,\n        defaultWeekdaysMinRegex = matchWord;\n\n    function localeWeekdays(m, format) {\n        var weekdays = isArray(this._weekdays)\n            ? this._weekdays\n            : this._weekdays[\n                  m && m !== true && this._weekdays.isFormat.test(format)\n                      ? 'format'\n                      : 'standalone'\n              ];\n        return m === true\n            ? shiftWeekdays(weekdays, this._week.dow)\n            : m\n              ? weekdays[m.day()]\n              : weekdays;\n    }\n\n    function localeWeekdaysShort(m) {\n        return m === true\n            ? shiftWeekdays(this._weekdaysShort, this._week.dow)\n            : m\n              ? this._weekdaysShort[m.day()]\n              : this._weekdaysShort;\n    }\n\n    function localeWeekdaysMin(m) {\n        return m === true\n            ? shiftWeekdays(this._weekdaysMin, this._week.dow)\n            : m\n              ? this._weekdaysMin[m.day()]\n              : this._weekdaysMin;\n    }\n\n    function handleStrictParse$1(weekdayName, format, strict) {\n        var i,\n            ii,\n            mom,\n            llc = weekdayName.toLocaleLowerCase();\n        if (!this._weekdaysParse) {\n            this._weekdaysParse = [];\n            this._shortWeekdaysParse = [];\n            this._minWeekdaysParse = [];\n\n            for (i = 0; i < 7; ++i) {\n                mom = createUTC([2000, 1]).day(i);\n                this._minWeekdaysParse[i] = this.weekdaysMin(\n                    mom,\n                    ''\n                ).toLocaleLowerCase();\n                this._shortWeekdaysParse[i] = this.weekdaysShort(\n                    mom,\n                    ''\n                ).toLocaleLowerCase();\n                this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();\n            }\n        }\n\n        if (strict) {\n            if (format === 'dddd') {\n                ii = indexOf.call(this._weekdaysParse, llc);\n                return ii !== -1 ? ii : null;\n            } else if (format === 'ddd') {\n                ii = indexOf.call(this._shortWeekdaysParse, llc);\n                return ii !== -1 ? ii : null;\n            } else {\n                ii = indexOf.call(this._minWeekdaysParse, llc);\n                return ii !== -1 ? ii : null;\n            }\n        } else {\n            if (format === 'dddd') {\n                ii = indexOf.call(this._weekdaysParse, llc);\n                if (ii !== -1) {\n                    return ii;\n                }\n                ii = indexOf.call(this._shortWeekdaysParse, llc);\n                if (ii !== -1) {\n                    return ii;\n                }\n                ii = indexOf.call(this._minWeekdaysParse, llc);\n                return ii !== -1 ? ii : null;\n            } else if (format === 'ddd') {\n                ii = indexOf.call(this._shortWeekdaysParse, llc);\n                if (ii !== -1) {\n                    return ii;\n                }\n                ii = indexOf.call(this._weekdaysParse, llc);\n                if (ii !== -1) {\n                    return ii;\n                }\n                ii = indexOf.call(this._minWeekdaysParse, llc);\n                return ii !== -1 ? ii : null;\n            } else {\n                ii = indexOf.call(this._minWeekdaysParse, llc);\n                if (ii !== -1) {\n                    return ii;\n                }\n                ii = indexOf.call(this._weekdaysParse, llc);\n                if (ii !== -1) {\n                    return ii;\n                }\n                ii = indexOf.call(this._shortWeekdaysParse, llc);\n                return ii !== -1 ? ii : null;\n            }\n        }\n    }\n\n    function localeWeekdaysParse(weekdayName, format, strict) {\n        var i, mom, regex;\n\n        if (this._weekdaysParseExact) {\n            return handleStrictParse$1.call(this, weekdayName, format, strict);\n        }\n\n        if (!this._weekdaysParse) {\n            this._weekdaysParse = [];\n            this._minWeekdaysParse = [];\n            this._shortWeekdaysParse = [];\n            this._fullWeekdaysParse = [];\n        }\n\n        for (i = 0; i < 7; i++) {\n            // make the regex if we don't have it already\n\n            mom = createUTC([2000, 1]).day(i);\n            if (strict && !this._fullWeekdaysParse[i]) {\n                this._fullWeekdaysParse[i] = new RegExp(\n                    '^' + this.weekdays(mom, '').replace('.', '\\\\.?') + '$',\n                    'i'\n                );\n                this._shortWeekdaysParse[i] = new RegExp(\n                    '^' + this.weekdaysShort(mom, '').replace('.', '\\\\.?') + '$',\n                    'i'\n                );\n                this._minWeekdaysParse[i] = new RegExp(\n                    '^' + this.weekdaysMin(mom, '').replace('.', '\\\\.?') + '$',\n                    'i'\n                );\n            }\n            if (!this._weekdaysParse[i]) {\n                regex =\n                    '^' +\n                    this.weekdays(mom, '') +\n                    '|^' +\n                    this.weekdaysShort(mom, '') +\n                    '|^' +\n                    this.weekdaysMin(mom, '');\n                this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');\n            }\n            // test the regex\n            if (\n                strict &&\n                format === 'dddd' &&\n                this._fullWeekdaysParse[i].test(weekdayName)\n            ) {\n                return i;\n            } else if (\n                strict &&\n                format === 'ddd' &&\n                this._shortWeekdaysParse[i].test(weekdayName)\n            ) {\n                return i;\n            } else if (\n                strict &&\n                format === 'dd' &&\n                this._minWeekdaysParse[i].test(weekdayName)\n            ) {\n                return i;\n            } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {\n                return i;\n            }\n        }\n    }\n\n    // MOMENTS\n\n    function getSetDayOfWeek(input) {\n        if (!this.isValid()) {\n            return input != null ? this : NaN;\n        }\n\n        var day = get(this, 'Day');\n        if (input != null) {\n            input = parseWeekday(input, this.localeData());\n            return this.add(input - day, 'd');\n        } else {\n            return day;\n        }\n    }\n\n    function getSetLocaleDayOfWeek(input) {\n        if (!this.isValid()) {\n            return input != null ? this : NaN;\n        }\n        var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;\n        return input == null ? weekday : this.add(input - weekday, 'd');\n    }\n\n    function getSetISODayOfWeek(input) {\n        if (!this.isValid()) {\n            return input != null ? this : NaN;\n        }\n\n        // behaves the same as moment#day except\n        // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)\n        // as a setter, sunday should belong to the previous week.\n\n        if (input != null) {\n            var weekday = parseIsoWeekday(input, this.localeData());\n            return this.day(this.day() % 7 ? weekday : weekday - 7);\n        } else {\n            return this.day() || 7;\n        }\n    }\n\n    function weekdaysRegex(isStrict) {\n        if (this._weekdaysParseExact) {\n            if (!hasOwnProp(this, '_weekdaysRegex')) {\n                computeWeekdaysParse.call(this);\n            }\n            if (isStrict) {\n                return this._weekdaysStrictRegex;\n            } else {\n                return this._weekdaysRegex;\n            }\n        } else {\n            if (!hasOwnProp(this, '_weekdaysRegex')) {\n                this._weekdaysRegex = defaultWeekdaysRegex;\n            }\n            return this._weekdaysStrictRegex && isStrict\n                ? this._weekdaysStrictRegex\n                : this._weekdaysRegex;\n        }\n    }\n\n    function weekdaysShortRegex(isStrict) {\n        if (this._weekdaysParseExact) {\n            if (!hasOwnProp(this, '_weekdaysRegex')) {\n                computeWeekdaysParse.call(this);\n            }\n            if (isStrict) {\n                return this._weekdaysShortStrictRegex;\n            } else {\n                return this._weekdaysShortRegex;\n            }\n        } else {\n            if (!hasOwnProp(this, '_weekdaysShortRegex')) {\n                this._weekdaysShortRegex = defaultWeekdaysShortRegex;\n            }\n            return this._weekdaysShortStrictRegex && isStrict\n                ? this._weekdaysShortStrictRegex\n                : this._weekdaysShortRegex;\n        }\n    }\n\n    function weekdaysMinRegex(isStrict) {\n        if (this._weekdaysParseExact) {\n            if (!hasOwnProp(this, '_weekdaysRegex')) {\n                computeWeekdaysParse.call(this);\n            }\n            if (isStrict) {\n                return this._weekdaysMinStrictRegex;\n            } else {\n                return this._weekdaysMinRegex;\n            }\n        } else {\n            if (!hasOwnProp(this, '_weekdaysMinRegex')) {\n                this._weekdaysMinRegex = defaultWeekdaysMinRegex;\n            }\n            return this._weekdaysMinStrictRegex && isStrict\n                ? this._weekdaysMinStrictRegex\n                : this._weekdaysMinRegex;\n        }\n    }\n\n    function computeWeekdaysParse() {\n        function cmpLenRev(a, b) {\n            return b.length - a.length;\n        }\n\n        var minPieces = [],\n            shortPieces = [],\n            longPieces = [],\n            mixedPieces = [],\n            i,\n            mom,\n            minp,\n            shortp,\n            longp;\n        for (i = 0; i < 7; i++) {\n            // make the regex if we don't have it already\n            mom = createUTC([2000, 1]).day(i);\n            minp = regexEscape(this.weekdaysMin(mom, ''));\n            shortp = regexEscape(this.weekdaysShort(mom, ''));\n            longp = regexEscape(this.weekdays(mom, ''));\n            minPieces.push(minp);\n            shortPieces.push(shortp);\n            longPieces.push(longp);\n            mixedPieces.push(minp);\n            mixedPieces.push(shortp);\n            mixedPieces.push(longp);\n        }\n        // Sorting makes sure if one weekday (or abbr) is a prefix of another it\n        // will match the longer piece.\n        minPieces.sort(cmpLenRev);\n        shortPieces.sort(cmpLenRev);\n        longPieces.sort(cmpLenRev);\n        mixedPieces.sort(cmpLenRev);\n\n        this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');\n        this._weekdaysShortRegex = this._weekdaysRegex;\n        this._weekdaysMinRegex = this._weekdaysRegex;\n\n        this._weekdaysStrictRegex = new RegExp(\n            '^(' + longPieces.join('|') + ')',\n            'i'\n        );\n        this._weekdaysShortStrictRegex = new RegExp(\n            '^(' + shortPieces.join('|') + ')',\n            'i'\n        );\n        this._weekdaysMinStrictRegex = new RegExp(\n            '^(' + minPieces.join('|') + ')',\n            'i'\n        );\n    }\n\n    // FORMATTING\n\n    function hFormat() {\n        return this.hours() % 12 || 12;\n    }\n\n    function kFormat() {\n        return this.hours() || 24;\n    }\n\n    addFormatToken('H', ['HH', 2], 0, 'hour');\n    addFormatToken('h', ['hh', 2], 0, hFormat);\n    addFormatToken('k', ['kk', 2], 0, kFormat);\n\n    addFormatToken('hmm', 0, 0, function () {\n        return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);\n    });\n\n    addFormatToken('hmmss', 0, 0, function () {\n        return (\n            '' +\n            hFormat.apply(this) +\n            zeroFill(this.minutes(), 2) +\n            zeroFill(this.seconds(), 2)\n        );\n    });\n\n    addFormatToken('Hmm', 0, 0, function () {\n        return '' + this.hours() + zeroFill(this.minutes(), 2);\n    });\n\n    addFormatToken('Hmmss', 0, 0, function () {\n        return (\n            '' +\n            this.hours() +\n            zeroFill(this.minutes(), 2) +\n            zeroFill(this.seconds(), 2)\n        );\n    });\n\n    function meridiem(token, lowercase) {\n        addFormatToken(token, 0, 0, function () {\n            return this.localeData().meridiem(\n                this.hours(),\n                this.minutes(),\n                lowercase\n            );\n        });\n    }\n\n    meridiem('a', true);\n    meridiem('A', false);\n\n    // PARSING\n\n    function matchMeridiem(isStrict, locale) {\n        return locale._meridiemParse;\n    }\n\n    addRegexToken('a', matchMeridiem);\n    addRegexToken('A', matchMeridiem);\n    addRegexToken('H', match1to2, match1to2HasZero);\n    addRegexToken('h', match1to2, match1to2NoLeadingZero);\n    addRegexToken('k', match1to2, match1to2NoLeadingZero);\n    addRegexToken('HH', match1to2, match2);\n    addRegexToken('hh', match1to2, match2);\n    addRegexToken('kk', match1to2, match2);\n\n    addRegexToken('hmm', match3to4);\n    addRegexToken('hmmss', match5to6);\n    addRegexToken('Hmm', match3to4);\n    addRegexToken('Hmmss', match5to6);\n\n    addParseToken(['H', 'HH'], HOUR);\n    addParseToken(['k', 'kk'], function (input, array, config) {\n        var kInput = toInt(input);\n        array[HOUR] = kInput === 24 ? 0 : kInput;\n    });\n    addParseToken(['a', 'A'], function (input, array, config) {\n        config._isPm = config._locale.isPM(input);\n        config._meridiem = input;\n    });\n    addParseToken(['h', 'hh'], function (input, array, config) {\n        array[HOUR] = toInt(input);\n        getParsingFlags(config).bigHour = true;\n    });\n    addParseToken('hmm', function (input, array, config) {\n        var pos = input.length - 2;\n        array[HOUR] = toInt(input.substr(0, pos));\n        array[MINUTE] = toInt(input.substr(pos));\n        getParsingFlags(config).bigHour = true;\n    });\n    addParseToken('hmmss', function (input, array, config) {\n        var pos1 = input.length - 4,\n            pos2 = input.length - 2;\n        array[HOUR] = toInt(input.substr(0, pos1));\n        array[MINUTE] = toInt(input.substr(pos1, 2));\n        array[SECOND] = toInt(input.substr(pos2));\n        getParsingFlags(config).bigHour = true;\n    });\n    addParseToken('Hmm', function (input, array, config) {\n        var pos = input.length - 2;\n        array[HOUR] = toInt(input.substr(0, pos));\n        array[MINUTE] = toInt(input.substr(pos));\n    });\n    addParseToken('Hmmss', function (input, array, config) {\n        var pos1 = input.length - 4,\n            pos2 = input.length - 2;\n        array[HOUR] = toInt(input.substr(0, pos1));\n        array[MINUTE] = toInt(input.substr(pos1, 2));\n        array[SECOND] = toInt(input.substr(pos2));\n    });\n\n    // LOCALES\n\n    function localeIsPM(input) {\n        // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays\n        // Using charAt should be more compatible.\n        return (input + '').toLowerCase().charAt(0) === 'p';\n    }\n\n    var defaultLocaleMeridiemParse = /[ap]\\.?m?\\.?/i,\n        // Setting the hour should keep the time, because the user explicitly\n        // specified which hour they want. So trying to maintain the same hour (in\n        // a new timezone) makes sense. Adding/subtracting hours does not follow\n        // this rule.\n        getSetHour = makeGetSet('Hours', true);\n\n    function localeMeridiem(hours, minutes, isLower) {\n        if (hours > 11) {\n            return isLower ? 'pm' : 'PM';\n        } else {\n            return isLower ? 'am' : 'AM';\n        }\n    }\n\n    var baseConfig = {\n        calendar: defaultCalendar,\n        longDateFormat: defaultLongDateFormat,\n        invalidDate: defaultInvalidDate,\n        ordinal: defaultOrdinal,\n        dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,\n        relativeTime: defaultRelativeTime,\n\n        months: defaultLocaleMonths,\n        monthsShort: defaultLocaleMonthsShort,\n\n        week: defaultLocaleWeek,\n\n        weekdays: defaultLocaleWeekdays,\n        weekdaysMin: defaultLocaleWeekdaysMin,\n        weekdaysShort: defaultLocaleWeekdaysShort,\n\n        meridiemParse: defaultLocaleMeridiemParse,\n    };\n\n    // internal storage for locale config files\n    var locales = {},\n        localeFamilies = {},\n        globalLocale;\n\n    function commonPrefix(arr1, arr2) {\n        var i,\n            minl = Math.min(arr1.length, arr2.length);\n        for (i = 0; i < minl; i += 1) {\n            if (arr1[i] !== arr2[i]) {\n                return i;\n            }\n        }\n        return minl;\n    }\n\n    function normalizeLocale(key) {\n        return key ? key.toLowerCase().replace('_', '-') : key;\n    }\n\n    // pick the locale from the array\n    // try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each\n    // substring from most specific to least, but move to the next array item if it's a more specific variant than the current root\n    function chooseLocale(names) {\n        var i = 0,\n            j,\n            next,\n            locale,\n            split;\n\n        while (i < names.length) {\n            split = normalizeLocale(names[i]).split('-');\n            j = split.length;\n            next = normalizeLocale(names[i + 1]);\n            next = next ? next.split('-') : null;\n            while (j > 0) {\n                locale = loadLocale(split.slice(0, j).join('-'));\n                if (locale) {\n                    return locale;\n                }\n                if (\n                    next &&\n                    next.length >= j &&\n                    commonPrefix(split, next) >= j - 1\n                ) {\n                    //the next array item is better than a shallower substring of this one\n                    break;\n                }\n                j--;\n            }\n            i++;\n        }\n        return globalLocale;\n    }\n\n    function isLocaleNameSane(name) {\n        // Prevent names that look like filesystem paths, i.e contain '/' or '\\'\n        // Ensure name is available and function returns boolean\n        return !!(name && name.match('^[^/\\\\\\\\]*$'));\n    }\n\n    function loadLocale(name) {\n        var oldLocale = null,\n            aliasedRequire;\n        // TODO: Find a better way to register and load all the locales in Node\n        if (\n            locales[name] === undefined &&\n            typeof module !== 'undefined' &&\n            module &&\n            module.exports &&\n            isLocaleNameSane(name)\n        ) {\n            try {\n                oldLocale = globalLocale._abbr;\n                aliasedRequire = require;\n                aliasedRequire('./locale/' + name);\n                getSetGlobalLocale(oldLocale);\n            } catch (e) {\n                // mark as not found to avoid repeating expensive file require call causing high CPU\n                // when trying to find en-US, en_US, en-us for every format call\n                locales[name] = null; // null means not found\n            }\n        }\n        return locales[name];\n    }\n\n    // This function will load locale and then set the global locale.  If\n    // no arguments are passed in, it will simply return the current global\n    // locale key.\n    function getSetGlobalLocale(key, values) {\n        var data;\n        if (key) {\n            if (isUndefined(values)) {\n                data = getLocale(key);\n            } else {\n                data = defineLocale(key, values);\n            }\n\n            if (data) {\n                // moment.duration._locale = moment._locale = data;\n                globalLocale = data;\n            } else {\n                if (typeof console !== 'undefined' && console.warn) {\n                    //warn user if arguments are passed but the locale could not be set\n                    console.warn(\n                        'Locale ' + key + ' not found. Did you forget to load it?'\n                    );\n                }\n            }\n        }\n\n        return globalLocale._abbr;\n    }\n\n    function defineLocale(name, config) {\n        if (config !== null) {\n            var locale,\n                parentConfig = baseConfig;\n            config.abbr = name;\n            if (locales[name] != null) {\n                deprecateSimple(\n                    'defineLocaleOverride',\n                    'use moment.updateLocale(localeName, config) to change ' +\n                        'an existing locale. moment.defineLocale(localeName, ' +\n                        'config) should only be used for creating a new locale ' +\n                        'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.'\n                );\n                parentConfig = locales[name]._config;\n            } else if (config.parentLocale != null) {\n                if (locales[config.parentLocale] != null) {\n                    parentConfig = locales[config.parentLocale]._config;\n                } else {\n                    locale = loadLocale(config.parentLocale);\n                    if (locale != null) {\n                        parentConfig = locale._config;\n                    } else {\n                        if (!localeFamilies[config.parentLocale]) {\n                            localeFamilies[config.parentLocale] = [];\n                        }\n                        localeFamilies[config.parentLocale].push({\n                            name: name,\n                            config: config,\n                        });\n                        return null;\n                    }\n                }\n            }\n            locales[name] = new Locale(mergeConfigs(parentConfig, config));\n\n            if (localeFamilies[name]) {\n                localeFamilies[name].forEach(function (x) {\n                    defineLocale(x.name, x.config);\n                });\n            }\n\n            // backwards compat for now: also set the locale\n            // make sure we set the locale AFTER all child locales have been\n            // created, so we won't end up with the child locale set.\n            getSetGlobalLocale(name);\n\n            return locales[name];\n        } else {\n            // useful for testing\n            delete locales[name];\n            return null;\n        }\n    }\n\n    function updateLocale(name, config) {\n        if (config != null) {\n            var locale,\n                tmpLocale,\n                parentConfig = baseConfig;\n\n            if (locales[name] != null && locales[name].parentLocale != null) {\n                // Update existing child locale in-place to avoid memory-leaks\n                locales[name].set(mergeConfigs(locales[name]._config, config));\n            } else {\n                // MERGE\n                tmpLocale = loadLocale(name);\n                if (tmpLocale != null) {\n                    parentConfig = tmpLocale._config;\n                }\n                config = mergeConfigs(parentConfig, config);\n                if (tmpLocale == null) {\n                    // updateLocale is called for creating a new locale\n                    // Set abbr so it will have a name (getters return\n                    // undefined otherwise).\n                    config.abbr = name;\n                }\n                locale = new Locale(config);\n                locale.parentLocale = locales[name];\n                locales[name] = locale;\n            }\n\n            // backwards compat for now: also set the locale\n            getSetGlobalLocale(name);\n        } else {\n            // pass null for config to unupdate, useful for tests\n            if (locales[name] != null) {\n                if (locales[name].parentLocale != null) {\n                    locales[name] = locales[name].parentLocale;\n                    if (name === getSetGlobalLocale()) {\n                        getSetGlobalLocale(name);\n                    }\n                } else if (locales[name] != null) {\n                    delete locales[name];\n                }\n            }\n        }\n        return locales[name];\n    }\n\n    // returns locale data\n    function getLocale(key) {\n        var locale;\n\n        if (key && key._locale && key._locale._abbr) {\n            key = key._locale._abbr;\n        }\n\n        if (!key) {\n            return globalLocale;\n        }\n\n        if (!isArray(key)) {\n            //short-circuit everything else\n            locale = loadLocale(key);\n            if (locale) {\n                return locale;\n            }\n            key = [key];\n        }\n\n        return chooseLocale(key);\n    }\n\n    function listLocales() {\n        return keys(locales);\n    }\n\n    function checkOverflow(m) {\n        var overflow,\n            a = m._a;\n\n        if (a && getParsingFlags(m).overflow === -2) {\n            overflow =\n                a[MONTH] < 0 || a[MONTH] > 11\n                    ? MONTH\n                    : a[DATE] < 1 || a[DATE] > daysInMonth(a[YEAR], a[MONTH])\n                      ? DATE\n                      : a[HOUR] < 0 ||\n                          a[HOUR] > 24 ||\n                          (a[HOUR] === 24 &&\n                              (a[MINUTE] !== 0 ||\n                                  a[SECOND] !== 0 ||\n                                  a[MILLISECOND] !== 0))\n                        ? HOUR\n                        : a[MINUTE] < 0 || a[MINUTE] > 59\n                          ? MINUTE\n                          : a[SECOND] < 0 || a[SECOND] > 59\n                            ? SECOND\n                            : a[MILLISECOND] < 0 || a[MILLISECOND] > 999\n                              ? MILLISECOND\n                              : -1;\n\n            if (\n                getParsingFlags(m)._overflowDayOfYear &&\n                (overflow < YEAR || overflow > DATE)\n            ) {\n                overflow = DATE;\n            }\n            if (getParsingFlags(m)._overflowWeeks && overflow === -1) {\n                overflow = WEEK;\n            }\n            if (getParsingFlags(m)._overflowWeekday && overflow === -1) {\n                overflow = WEEKDAY;\n            }\n\n            getParsingFlags(m).overflow = overflow;\n        }\n\n        return m;\n    }\n\n    // iso 8601 regex\n    // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)\n    var extendedIsoRegex =\n            /^\\s*((?:[+-]\\d{6}|\\d{4})-(?:\\d\\d-\\d\\d|W\\d\\d-\\d|W\\d\\d|\\d\\d\\d|\\d\\d))(?:(T| )(\\d\\d(?::\\d\\d(?::\\d\\d(?:[.,]\\d+)?)?)?)([+-]\\d\\d(?::?\\d\\d)?|\\s*Z)?)?$/,\n        basicIsoRegex =\n            /^\\s*((?:[+-]\\d{6}|\\d{4})(?:\\d\\d\\d\\d|W\\d\\d\\d|W\\d\\d|\\d\\d\\d|\\d\\d|))(?:(T| )(\\d\\d(?:\\d\\d(?:\\d\\d(?:[.,]\\d+)?)?)?)([+-]\\d\\d(?::?\\d\\d)?|\\s*Z)?)?$/,\n        tzRegex = /Z|[+-]\\d\\d(?::?\\d\\d)?/,\n        isoDates = [\n            ['YYYYYY-MM-DD', /[+-]\\d{6}-\\d\\d-\\d\\d/],\n            ['YYYY-MM-DD', /\\d{4}-\\d\\d-\\d\\d/],\n            ['GGGG-[W]WW-E', /\\d{4}-W\\d\\d-\\d/],\n            ['GGGG-[W]WW', /\\d{4}-W\\d\\d/, false],\n            ['YYYY-DDD', /\\d{4}-\\d{3}/],\n            ['YYYY-MM', /\\d{4}-\\d\\d/, false],\n            ['YYYYYYMMDD', /[+-]\\d{10}/],\n            ['YYYYMMDD', /\\d{8}/],\n            ['GGGG[W]WWE', /\\d{4}W\\d{3}/],\n            ['GGGG[W]WW', /\\d{4}W\\d{2}/, false],\n            ['YYYYDDD', /\\d{7}/],\n            ['YYYYMM', /\\d{6}/, false],\n            ['YYYY', /\\d{4}/, false],\n        ],\n        // iso time formats and regexes\n        isoTimes = [\n            ['HH:mm:ss.SSSS', /\\d\\d:\\d\\d:\\d\\d\\.\\d+/],\n            ['HH:mm:ss,SSSS', /\\d\\d:\\d\\d:\\d\\d,\\d+/],\n            ['HH:mm:ss', /\\d\\d:\\d\\d:\\d\\d/],\n            ['HH:mm', /\\d\\d:\\d\\d/],\n            ['HHmmss.SSSS', /\\d\\d\\d\\d\\d\\d\\.\\d+/],\n            ['HHmmss,SSSS', /\\d\\d\\d\\d\\d\\d,\\d+/],\n            ['HHmmss', /\\d\\d\\d\\d\\d\\d/],\n            ['HHmm', /\\d\\d\\d\\d/],\n            ['HH', /\\d\\d/],\n        ],\n        aspNetJsonRegex = /^\\/?Date\\((-?\\d+)/i,\n        // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3\n        rfc2822 =\n            /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\\s)?(\\d{1,2})\\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\\s(\\d{2,4})\\s(\\d\\d):(\\d\\d)(?::(\\d\\d))?\\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\\d{4}))$/,\n        obsOffsets = {\n            UT: 0,\n            GMT: 0,\n            EDT: -4 * 60,\n            EST: -5 * 60,\n            CDT: -5 * 60,\n            CST: -6 * 60,\n            MDT: -6 * 60,\n            MST: -7 * 60,\n            PDT: -7 * 60,\n            PST: -8 * 60,\n        };\n\n    // date from iso format\n    function configFromISO(config) {\n        var i,\n            l,\n            string = config._i,\n            match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),\n            allowTime,\n            dateFormat,\n            timeFormat,\n            tzFormat,\n            isoDatesLen = isoDates.length,\n            isoTimesLen = isoTimes.length;\n\n        if (match) {\n            getParsingFlags(config).iso = true;\n            for (i = 0, l = isoDatesLen; i < l; i++) {\n                if (isoDates[i][1].exec(match[1])) {\n                    dateFormat = isoDates[i][0];\n                    allowTime = isoDates[i][2] !== false;\n                    break;\n                }\n            }\n            if (dateFormat == null) {\n                config._isValid = false;\n                return;\n            }\n            if (match[3]) {\n                for (i = 0, l = isoTimesLen; i < l; i++) {\n                    if (isoTimes[i][1].exec(match[3])) {\n                        // match[2] should be 'T' or space\n                        timeFormat = (match[2] || ' ') + isoTimes[i][0];\n                        break;\n                    }\n                }\n                if (timeFormat == null) {\n                    config._isValid = false;\n                    return;\n                }\n            }\n            if (!allowTime && timeFormat != null) {\n                config._isValid = false;\n                return;\n            }\n            if (match[4]) {\n                if (tzRegex.exec(match[4])) {\n                    tzFormat = 'Z';\n                } else {\n                    config._isValid = false;\n                    return;\n                }\n            }\n            config._f = dateFormat + (timeFormat || '') + (tzFormat || '');\n            configFromStringAndFormat(config);\n        } else {\n            config._isValid = false;\n        }\n    }\n\n    function extractFromRFC2822Strings(\n        yearStr,\n        monthStr,\n        dayStr,\n        hourStr,\n        minuteStr,\n        secondStr\n    ) {\n        var result = [\n            untruncateYear(yearStr),\n            defaultLocaleMonthsShort.indexOf(monthStr),\n            parseInt(dayStr, 10),\n            parseInt(hourStr, 10),\n            parseInt(minuteStr, 10),\n        ];\n\n        if (secondStr) {\n            result.push(parseInt(secondStr, 10));\n        }\n\n        return result;\n    }\n\n    function untruncateYear(yearStr) {\n        var year = parseInt(yearStr, 10);\n        if (year <= 49) {\n            return 2000 + year;\n        } else if (year <= 999) {\n            return 1900 + year;\n        }\n        return year;\n    }\n\n    function preprocessRFC2822(s) {\n        // Remove comments and folding whitespace and replace multiple-spaces with a single space\n        return s\n            .replace(/\\([^()]*\\)|[\\n\\t]/g, ' ')\n            .replace(/(\\s\\s+)/g, ' ')\n            .replace(/^\\s\\s*/, '')\n            .replace(/\\s\\s*$/, '');\n    }\n\n    function checkWeekday(weekdayStr, parsedInput, config) {\n        if (weekdayStr) {\n            // TODO: Replace the vanilla JS Date object with an independent day-of-week check.\n            var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),\n                weekdayActual = new Date(\n                    parsedInput[0],\n                    parsedInput[1],\n                    parsedInput[2]\n                ).getDay();\n            if (weekdayProvided !== weekdayActual) {\n                getParsingFlags(config).weekdayMismatch = true;\n                config._isValid = false;\n                return false;\n            }\n        }\n        return true;\n    }\n\n    function calculateOffset(obsOffset, militaryOffset, numOffset) {\n        if (obsOffset) {\n            return obsOffsets[obsOffset];\n        } else if (militaryOffset) {\n            // the only allowed military tz is Z\n            return 0;\n        } else {\n            var hm = parseInt(numOffset, 10),\n                m = hm % 100,\n                h = (hm - m) / 100;\n            return h * 60 + m;\n        }\n    }\n\n    // date and time from ref 2822 format\n    function configFromRFC2822(config) {\n        var match = rfc2822.exec(preprocessRFC2822(config._i)),\n            parsedArray;\n        if (match) {\n            parsedArray = extractFromRFC2822Strings(\n                match[4],\n                match[3],\n                match[2],\n                match[5],\n                match[6],\n                match[7]\n            );\n            if (!checkWeekday(match[1], parsedArray, config)) {\n                return;\n            }\n\n            config._a = parsedArray;\n            config._tzm = calculateOffset(match[8], match[9], match[10]);\n\n            config._d = createUTCDate.apply(null, config._a);\n            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);\n\n            getParsingFlags(config).rfc2822 = true;\n        } else {\n            config._isValid = false;\n        }\n    }\n\n    // date from 1) ASP.NET, 2) ISO, 3) RFC 2822 formats, or 4) optional fallback if parsing isn't strict\n    function configFromString(config) {\n        var matched = aspNetJsonRegex.exec(config._i);\n        if (matched !== null) {\n            config._d = new Date(+matched[1]);\n            return;\n        }\n\n        configFromISO(config);\n        if (config._isValid === false) {\n            delete config._isValid;\n        } else {\n            return;\n        }\n\n        configFromRFC2822(config);\n        if (config._isValid === false) {\n            delete config._isValid;\n        } else {\n            return;\n        }\n\n        if (config._strict) {\n            config._isValid = false;\n        } else {\n            // Final attempt, use Input Fallback\n            hooks.createFromInputFallback(config);\n        }\n    }\n\n    hooks.createFromInputFallback = deprecate(\n        'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +\n            'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +\n            'discouraged. Please refer to http://momentjs.com/guides/#/warnings/js-date/ for more info.',\n        function (config) {\n            config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));\n        }\n    );\n\n    // Pick the first defined of two or three arguments.\n    function defaults(a, b, c) {\n        if (a != null) {\n            return a;\n        }\n        if (b != null) {\n            return b;\n        }\n        return c;\n    }\n\n    function currentDateArray(config) {\n        // hooks is actually the exported moment object\n        var nowValue = new Date(hooks.now());\n        if (config._useUTC) {\n            return [\n                nowValue.getUTCFullYear(),\n                nowValue.getUTCMonth(),\n                nowValue.getUTCDate(),\n            ];\n        }\n        return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];\n    }\n\n    // convert an array to a date.\n    // the array should mirror the parameters below\n    // note: all values past the year are optional and will default to the lowest possible value.\n    // [year, month, day , hour, minute, second, millisecond]\n    function configFromArray(config) {\n        var i,\n            date,\n            input = [],\n            currentDate,\n            expectedWeekday,\n            yearToUse;\n\n        if (config._d) {\n            return;\n        }\n\n        currentDate = currentDateArray(config);\n\n        //compute day of the year from weeks and weekdays\n        if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {\n            dayOfYearFromWeekInfo(config);\n        }\n\n        //if the day of the year is set, figure out what it is\n        if (config._dayOfYear != null) {\n            yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);\n\n            if (\n                config._dayOfYear > daysInYear(yearToUse) ||\n                config._dayOfYear === 0\n            ) {\n                getParsingFlags(config)._overflowDayOfYear = true;\n            }\n\n            date = createUTCDate(yearToUse, 0, config._dayOfYear);\n            config._a[MONTH] = date.getUTCMonth();\n            config._a[DATE] = date.getUTCDate();\n        }\n\n        // Default to current date.\n        // * if no year, month, day of month are given, default to today\n        // * if day of month is given, default month and year\n        // * if month is given, default only year\n        // * if year is given, don't default anything\n        for (i = 0; i < 3 && config._a[i] == null; ++i) {\n            config._a[i] = input[i] = currentDate[i];\n        }\n\n        // Zero out whatever was not defaulted, including time\n        for (; i < 7; i++) {\n            config._a[i] = input[i] =\n                config._a[i] == null ? (i === 2 ? 1 : 0) : config._a[i];\n        }\n\n        // Check for 24:00:00.000\n        if (\n            config._a[HOUR] === 24 &&\n            config._a[MINUTE] === 0 &&\n            config._a[SECOND] === 0 &&\n            config._a[MILLISECOND] === 0\n        ) {\n            config._nextDay = true;\n            config._a[HOUR] = 0;\n        }\n\n        config._d = (config._useUTC ? createUTCDate : createDate).apply(\n            null,\n            input\n        );\n        expectedWeekday = config._useUTC\n            ? config._d.getUTCDay()\n            : config._d.getDay();\n\n        // Apply timezone offset from input. The actual utcOffset can be changed\n        // with parseZone.\n        if (config._tzm != null) {\n            config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);\n        }\n\n        if (config._nextDay) {\n            config._a[HOUR] = 24;\n        }\n\n        // check for mismatching day of week\n        if (\n            config._w &&\n            typeof config._w.d !== 'undefined' &&\n            config._w.d !== expectedWeekday\n        ) {\n            getParsingFlags(config).weekdayMismatch = true;\n        }\n    }\n\n    function dayOfYearFromWeekInfo(config) {\n        var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow, curWeek;\n\n        w = config._w;\n        if (w.GG != null || w.W != null || w.E != null) {\n            dow = 1;\n            doy = 4;\n\n            // TODO: We need to take the current isoWeekYear, but that depends on\n            // how we interpret now (local, utc, fixed offset). So create\n            // a now version of current config (take local/utc/offset flags, and\n            // create now).\n            weekYear = defaults(\n                w.GG,\n                config._a[YEAR],\n                weekOfYear(createLocal(), 1, 4).year\n            );\n            week = defaults(w.W, 1);\n            weekday = defaults(w.E, 1);\n            if (weekday < 1 || weekday > 7) {\n                weekdayOverflow = true;\n            }\n        } else {\n            dow = config._locale._week.dow;\n            doy = config._locale._week.doy;\n\n            curWeek = weekOfYear(createLocal(), dow, doy);\n\n            weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);\n\n            // Default to current week.\n            week = defaults(w.w, curWeek.week);\n\n            if (w.d != null) {\n                // weekday -- low day numbers are considered next week\n                weekday = w.d;\n                if (weekday < 0 || weekday > 6) {\n                    weekdayOverflow = true;\n                }\n            } else if (w.e != null) {\n                // local weekday -- counting starts from beginning of week\n                weekday = w.e + dow;\n                if (w.e < 0 || w.e > 6) {\n                    weekdayOverflow = true;\n                }\n            } else {\n                // default to beginning of week\n                weekday = dow;\n            }\n        }\n        if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {\n            getParsingFlags(config)._overflowWeeks = true;\n        } else if (weekdayOverflow != null) {\n            getParsingFlags(config)._overflowWeekday = true;\n        } else {\n            temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);\n            config._a[YEAR] = temp.year;\n            config._dayOfYear = temp.dayOfYear;\n        }\n    }\n\n    // constant that refers to the ISO standard\n    hooks.ISO_8601 = function () {};\n\n    // constant that refers to the RFC 2822 form\n    hooks.RFC_2822 = function () {};\n\n    // date from string and format string\n    function configFromStringAndFormat(config) {\n        // TODO: Move this to another part of the creation flow to prevent circular deps\n        if (config._f === hooks.ISO_8601) {\n            configFromISO(config);\n            return;\n        }\n        if (config._f === hooks.RFC_2822) {\n            configFromRFC2822(config);\n            return;\n        }\n        config._a = [];\n        getParsingFlags(config).empty = true;\n\n        // This array is used to make a Date, either with `new Date` or `Date.UTC`\n        var string = '' + config._i,\n            i,\n            parsedInput,\n            tokens,\n            token,\n            skipped,\n            stringLength = string.length,\n            totalParsedInputLength = 0,\n            era,\n            tokenLen;\n\n        tokens =\n            expandFormat(config._f, config._locale).match(formattingTokens) || [];\n        tokenLen = tokens.length;\n        for (i = 0; i < tokenLen; i++) {\n            token = tokens[i];\n            parsedInput = (string.match(getParseRegexForToken(token, config)) ||\n                [])[0];\n            if (parsedInput) {\n                skipped = string.substr(0, string.indexOf(parsedInput));\n                if (skipped.length > 0) {\n                    getParsingFlags(config).unusedInput.push(skipped);\n                }\n                string = string.slice(\n                    string.indexOf(parsedInput) + parsedInput.length\n                );\n                totalParsedInputLength += parsedInput.length;\n            }\n            // don't parse if it's not a known token\n            if (formatTokenFunctions[token]) {\n                if (parsedInput) {\n                    getParsingFlags(config).empty = false;\n                } else {\n                    getParsingFlags(config).unusedTokens.push(token);\n                }\n                addTimeToArrayFromToken(token, parsedInput, config);\n            } else if (config._strict && !parsedInput) {\n                getParsingFlags(config).unusedTokens.push(token);\n            }\n        }\n\n        // add remaining unparsed input length to the string\n        getParsingFlags(config).charsLeftOver =\n            stringLength - totalParsedInputLength;\n        if (string.length > 0) {\n            getParsingFlags(config).unusedInput.push(string);\n        }\n\n        // clear _12h flag if hour is <= 12\n        if (\n            config._a[HOUR] <= 12 &&\n            getParsingFlags(config).bigHour === true &&\n            config._a[HOUR] > 0\n        ) {\n            getParsingFlags(config).bigHour = undefined;\n        }\n\n        getParsingFlags(config).parsedDateParts = config._a.slice(0);\n        getParsingFlags(config).meridiem = config._meridiem;\n        // handle meridiem\n        config._a[HOUR] = meridiemFixWrap(\n            config._locale,\n            config._a[HOUR],\n            config._meridiem\n        );\n\n        // handle era\n        era = getParsingFlags(config).era;\n        if (era !== null) {\n            config._a[YEAR] = config._locale.erasConvertYear(era, config._a[YEAR]);\n        }\n\n        configFromArray(config);\n        checkOverflow(config);\n    }\n\n    function meridiemFixWrap(locale, hour, meridiem) {\n        var isPm;\n\n        if (meridiem == null) {\n            // nothing to do\n            return hour;\n        }\n        if (locale.meridiemHour != null) {\n            return locale.meridiemHour(hour, meridiem);\n        } else if (locale.isPM != null) {\n            // Fallback\n            isPm = locale.isPM(meridiem);\n            if (isPm && hour < 12) {\n                hour += 12;\n            }\n            if (!isPm && hour === 12) {\n                hour = 0;\n            }\n            return hour;\n        } else {\n            // this is not supposed to happen\n            return hour;\n        }\n    }\n\n    // date from string and array of format strings\n    function configFromStringAndArray(config) {\n        var tempConfig,\n            bestMoment,\n            scoreToBeat,\n            i,\n            currentScore,\n            validFormatFound,\n            bestFormatIsValid = false,\n            configfLen = config._f.length;\n\n        if (configfLen === 0) {\n            getParsingFlags(config).invalidFormat = true;\n            config._d = new Date(NaN);\n            return;\n        }\n\n        for (i = 0; i < configfLen; i++) {\n            currentScore = 0;\n            validFormatFound = false;\n            tempConfig = copyConfig({}, config);\n            if (config._useUTC != null) {\n                tempConfig._useUTC = config._useUTC;\n            }\n            tempConfig._f = config._f[i];\n            configFromStringAndFormat(tempConfig);\n\n            if (isValid(tempConfig)) {\n                validFormatFound = true;\n            }\n\n            // if there is any input that was not parsed add a penalty for that format\n            currentScore += getParsingFlags(tempConfig).charsLeftOver;\n\n            //or tokens\n            currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;\n\n            getParsingFlags(tempConfig).score = currentScore;\n\n            if (!bestFormatIsValid) {\n                if (\n                    scoreToBeat == null ||\n                    currentScore < scoreToBeat ||\n                    validFormatFound\n                ) {\n                    scoreToBeat = currentScore;\n                    bestMoment = tempConfig;\n                    if (validFormatFound) {\n                        bestFormatIsValid = true;\n                    }\n                }\n            } else {\n                if (currentScore < scoreToBeat) {\n                    scoreToBeat = currentScore;\n                    bestMoment = tempConfig;\n                }\n            }\n        }\n\n        extend(config, bestMoment || tempConfig);\n    }\n\n    function configFromObject(config) {\n        if (config._d) {\n            return;\n        }\n\n        var i = normalizeObjectUnits(config._i),\n            dayOrDate = i.day === undefined ? i.date : i.day;\n        config._a = map(\n            [i.year, i.month, dayOrDate, i.hour, i.minute, i.second, i.millisecond],\n            function (obj) {\n                return obj && parseInt(obj, 10);\n            }\n        );\n\n        configFromArray(config);\n    }\n\n    function createFromConfig(config) {\n        var res = new Moment(checkOverflow(prepareConfig(config)));\n        if (res._nextDay) {\n            // Adding is smart enough around DST\n            res.add(1, 'd');\n            res._nextDay = undefined;\n        }\n\n        return res;\n    }\n\n    function prepareConfig(config) {\n        var input = config._i,\n            format = config._f;\n\n        config._locale = config._locale || getLocale(config._l);\n\n        if (input === null || (format === undefined && input === '')) {\n            return createInvalid({ nullInput: true });\n        }\n\n        if (typeof input === 'string') {\n            config._i = input = config._locale.preparse(input);\n        }\n\n        if (isMoment(input)) {\n            return new Moment(checkOverflow(input));\n        } else if (isDate(input)) {\n            config._d = input;\n        } else if (isArray(format)) {\n            configFromStringAndArray(config);\n        } else if (format) {\n            configFromStringAndFormat(config);\n        } else {\n            configFromInput(config);\n        }\n\n        if (!isValid(config)) {\n            config._d = null;\n        }\n\n        return config;\n    }\n\n    function configFromInput(config) {\n        var input = config._i;\n        if (isUndefined(input)) {\n            config._d = new Date(hooks.now());\n        } else if (isDate(input)) {\n            config._d = new Date(input.valueOf());\n        } else if (typeof input === 'string') {\n            configFromString(config);\n        } else if (isArray(input)) {\n            config._a = map(input.slice(0), function (obj) {\n                return parseInt(obj, 10);\n            });\n            configFromArray(config);\n        } else if (isObject(input)) {\n            configFromObject(config);\n        } else if (isNumber(input)) {\n            // from milliseconds\n            config._d = new Date(input);\n        } else {\n            hooks.createFromInputFallback(config);\n        }\n    }\n\n    function createLocalOrUTC(input, format, locale, strict, isUTC) {\n        var c = {};\n\n        if (format === true || format === false) {\n            strict = format;\n            format = undefined;\n        }\n\n        if (locale === true || locale === false) {\n            strict = locale;\n            locale = undefined;\n        }\n\n        if (\n            (isObject(input) && isObjectEmpty(input)) ||\n            (isArray(input) && input.length === 0)\n        ) {\n            input = undefined;\n        }\n        // object construction must be done this way.\n        // https://github.com/moment/moment/issues/1423\n        c._isAMomentObject = true;\n        c._useUTC = c._isUTC = isUTC;\n        c._l = locale;\n        c._i = input;\n        c._f = format;\n        c._strict = strict;\n\n        return createFromConfig(c);\n    }\n\n    function createLocal(input, format, locale, strict) {\n        return createLocalOrUTC(input, format, locale, strict, false);\n    }\n\n    var prototypeMin = deprecate(\n            'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',\n            function () {\n                var other = createLocal.apply(null, arguments);\n                if (this.isValid() && other.isValid()) {\n                    return other < this ? this : other;\n                } else {\n                    return createInvalid();\n                }\n            }\n        ),\n        prototypeMax = deprecate(\n            'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',\n            function () {\n                var other = createLocal.apply(null, arguments);\n                if (this.isValid() && other.isValid()) {\n                    return other > this ? this : other;\n                } else {\n                    return createInvalid();\n                }\n            }\n        );\n\n    // Pick a moment m from moments so that m[fn](other) is true for all\n    // other. This relies on the function fn to be transitive.\n    //\n    // moments should either be an array of moment objects or an array, whose\n    // first element is an array of moment objects.\n    function pickBy(fn, moments) {\n        var res, i;\n        if (moments.length === 1 && isArray(moments[0])) {\n            moments = moments[0];\n        }\n        if (!moments.length) {\n            return createLocal();\n        }\n        res = moments[0];\n        for (i = 1; i < moments.length; ++i) {\n            if (!moments[i].isValid() || moments[i][fn](res)) {\n                res = moments[i];\n            }\n        }\n        return res;\n    }\n\n    // TODO: Use [].sort instead?\n    function min() {\n        var args = [].slice.call(arguments, 0);\n\n        return pickBy('isBefore', args);\n    }\n\n    function max() {\n        var args = [].slice.call(arguments, 0);\n\n        return pickBy('isAfter', args);\n    }\n\n    var now = function () {\n        return Date.now ? Date.now() : +new Date();\n    };\n\n    var ordering = [\n        'year',\n        'quarter',\n        'month',\n        'week',\n        'day',\n        'hour',\n        'minute',\n        'second',\n        'millisecond',\n    ];\n\n    function isDurationValid(m) {\n        var key,\n            unitHasDecimal = false,\n            i,\n            orderLen = ordering.length;\n        for (key in m) {\n            if (\n                hasOwnProp(m, key) &&\n                !(\n                    indexOf.call(ordering, key) !== -1 &&\n                    (m[key] == null || !isNaN(m[key]))\n                )\n            ) {\n                return false;\n            }\n        }\n\n        for (i = 0; i < orderLen; ++i) {\n            if (m[ordering[i]]) {\n                if (unitHasDecimal) {\n                    return false; // only allow non-integers for smallest unit\n                }\n                if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {\n                    unitHasDecimal = true;\n                }\n            }\n        }\n\n        return true;\n    }\n\n    function isValid$1() {\n        return this._isValid;\n    }\n\n    function createInvalid$1() {\n        return createDuration(NaN);\n    }\n\n    function Duration(duration) {\n        var normalizedInput = normalizeObjectUnits(duration),\n            years = normalizedInput.year || 0,\n            quarters = normalizedInput.quarter || 0,\n            months = normalizedInput.month || 0,\n            weeks = normalizedInput.week || normalizedInput.isoWeek || 0,\n            days = normalizedInput.day || 0,\n            hours = normalizedInput.hour || 0,\n            minutes = normalizedInput.minute || 0,\n            seconds = normalizedInput.second || 0,\n            milliseconds = normalizedInput.millisecond || 0;\n\n        this._isValid = isDurationValid(normalizedInput);\n\n        // representation for dateAddRemove\n        this._milliseconds =\n            +milliseconds +\n            seconds * 1e3 + // 1000\n            minutes * 6e4 + // 1000 * 60\n            hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978\n        // Because of dateAddRemove treats 24 hours as different from a\n        // day when working around DST, we need to store them separately\n        this._days = +days + weeks * 7;\n        // It is impossible to translate months into days without knowing\n        // which months you are are talking about, so we have to store\n        // it separately.\n        this._months = +months + quarters * 3 + years * 12;\n\n        this._data = {};\n\n        this._locale = getLocale();\n\n        this._bubble();\n    }\n\n    function isDuration(obj) {\n        return obj instanceof Duration;\n    }\n\n    function absRound(number) {\n        if (number < 0) {\n            return Math.round(-1 * number) * -1;\n        } else {\n            return Math.round(number);\n        }\n    }\n\n    // compare two arrays, return the number of differences\n    function compareArrays(array1, array2, dontConvert) {\n        var len = Math.min(array1.length, array2.length),\n            lengthDiff = Math.abs(array1.length - array2.length),\n            diffs = 0,\n            i;\n        for (i = 0; i < len; i++) {\n            if (\n                (dontConvert && array1[i] !== array2[i]) ||\n                (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))\n            ) {\n                diffs++;\n            }\n        }\n        return diffs + lengthDiff;\n    }\n\n    // FORMATTING\n\n    function offset(token, separator) {\n        addFormatToken(token, 0, 0, function () {\n            var offset = this.utcOffset(),\n                sign = '+';\n            if (offset < 0) {\n                offset = -offset;\n                sign = '-';\n            }\n            return (\n                sign +\n                zeroFill(~~(offset / 60), 2) +\n                separator +\n                zeroFill(~~offset % 60, 2)\n            );\n        });\n    }\n\n    offset('Z', ':');\n    offset('ZZ', '');\n\n    // PARSING\n\n    addRegexToken('Z', matchShortOffset);\n    addRegexToken('ZZ', matchShortOffset);\n    addParseToken(['Z', 'ZZ'], function (input, array, config) {\n        config._useUTC = true;\n        config._tzm = offsetFromString(matchShortOffset, input);\n    });\n\n    // HELPERS\n\n    // timezone chunker\n    // '+10:00' > ['10',  '00']\n    // '-1530'  > ['-15', '30']\n    var chunkOffset = /([\\+\\-]|\\d\\d)/gi;\n\n    function offsetFromString(matcher, string) {\n        var matches = (string || '').match(matcher),\n            chunk,\n            parts,\n            minutes;\n\n        if (matches === null) {\n            return null;\n        }\n\n        chunk = matches[matches.length - 1] || [];\n        parts = (chunk + '').match(chunkOffset) || ['-', 0, 0];\n        minutes = +(parts[1] * 60) + toInt(parts[2]);\n\n        return minutes === 0 ? 0 : parts[0] === '+' ? minutes : -minutes;\n    }\n\n    // Return a moment from input, that is local/utc/zone equivalent to model.\n    function cloneWithOffset(input, model) {\n        var res, diff;\n        if (model._isUTC) {\n            res = model.clone();\n            diff =\n                (isMoment(input) || isDate(input)\n                    ? input.valueOf()\n                    : createLocal(input).valueOf()) - res.valueOf();\n            // Use low-level api, because this fn is low-level api.\n            res._d.setTime(res._d.valueOf() + diff);\n            hooks.updateOffset(res, false);\n            return res;\n        } else {\n            return createLocal(input).local();\n        }\n    }\n\n    function getDateOffset(m) {\n        // On Firefox.24 Date#getTimezoneOffset returns a floating point.\n        // https://github.com/moment/moment/pull/1871\n        return -Math.round(m._d.getTimezoneOffset());\n    }\n\n    // HOOKS\n\n    // This function will be called whenever a moment is mutated.\n    // It is intended to keep the offset in sync with the timezone.\n    hooks.updateOffset = function () {};\n\n    // MOMENTS\n\n    // keepLocalTime = true means only change the timezone, without\n    // affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->\n    // 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset\n    // +0200, so we adjust the time as needed, to be valid.\n    //\n    // Keeping the time actually adds/subtracts (one hour)\n    // from the actual represented time. That is why we call updateOffset\n    // a second time. In case it wants us to change the offset again\n    // _changeInProgress == true case, then we have to adjust, because\n    // there is no such time in the given timezone.\n    function getSetOffset(input, keepLocalTime, keepMinutes) {\n        var offset = this._offset || 0,\n            localAdjust;\n        if (!this.isValid()) {\n            return input != null ? this : NaN;\n        }\n        if (input != null) {\n            if (typeof input === 'string') {\n                input = offsetFromString(matchShortOffset, input);\n                if (input === null) {\n                    return this;\n                }\n            } else if (Math.abs(input) < 16 && !keepMinutes) {\n                input = input * 60;\n            }\n            if (!this._isUTC && keepLocalTime) {\n                localAdjust = getDateOffset(this);\n            }\n            this._offset = input;\n            this._isUTC = true;\n            if (localAdjust != null) {\n                this.add(localAdjust, 'm');\n            }\n            if (offset !== input) {\n                if (!keepLocalTime || this._changeInProgress) {\n                    addSubtract(\n                        this,\n                        createDuration(input - offset, 'm'),\n                        1,\n                        false\n                    );\n                } else if (!this._changeInProgress) {\n                    this._changeInProgress = true;\n                    hooks.updateOffset(this, true);\n                    this._changeInProgress = null;\n                }\n            }\n            return this;\n        } else {\n            return this._isUTC ? offset : getDateOffset(this);\n        }\n    }\n\n    function getSetZone(input, keepLocalTime) {\n        if (input != null) {\n            if (typeof input !== 'string') {\n                input = -input;\n            }\n\n            this.utcOffset(input, keepLocalTime);\n\n            return this;\n        } else {\n            return -this.utcOffset();\n        }\n    }\n\n    function setOffsetToUTC(keepLocalTime) {\n        return this.utcOffset(0, keepLocalTime);\n    }\n\n    function setOffsetToLocal(keepLocalTime) {\n        if (this._isUTC) {\n            this.utcOffset(0, keepLocalTime);\n            this._isUTC = false;\n\n            if (keepLocalTime) {\n                this.subtract(getDateOffset(this), 'm');\n            }\n        }\n        return this;\n    }\n\n    function setOffsetToParsedOffset() {\n        if (this._tzm != null) {\n            this.utcOffset(this._tzm, false, true);\n        } else if (typeof this._i === 'string') {\n            var tZone = offsetFromString(matchOffset, this._i);\n            if (tZone != null) {\n                this.utcOffset(tZone);\n            } else {\n                this.utcOffset(0, true);\n            }\n        }\n        return this;\n    }\n\n    function hasAlignedHourOffset(input) {\n        if (!this.isValid()) {\n            return false;\n        }\n        input = input ? createLocal(input).utcOffset() : 0;\n\n        return (this.utcOffset() - input) % 60 === 0;\n    }\n\n    function isDaylightSavingTime() {\n        return (\n            this.utcOffset() > this.clone().month(0).utcOffset() ||\n            this.utcOffset() > this.clone().month(5).utcOffset()\n        );\n    }\n\n    function isDaylightSavingTimeShifted() {\n        if (!isUndefined(this._isDSTShifted)) {\n            return this._isDSTShifted;\n        }\n\n        var c = {},\n            other;\n\n        copyConfig(c, this);\n        c = prepareConfig(c);\n\n        if (c._a) {\n            other = c._isUTC ? createUTC(c._a) : createLocal(c._a);\n            this._isDSTShifted =\n                this.isValid() && compareArrays(c._a, other.toArray()) > 0;\n        } else {\n            this._isDSTShifted = false;\n        }\n\n        return this._isDSTShifted;\n    }\n\n    function isLocal() {\n        return this.isValid() ? !this._isUTC : false;\n    }\n\n    function isUtcOffset() {\n        return this.isValid() ? this._isUTC : false;\n    }\n\n    function isUtc() {\n        return this.isValid() ? this._isUTC && this._offset === 0 : false;\n    }\n\n    // ASP.NET json date format regex\n    var aspNetRegex = /^(-|\\+)?(?:(\\d*)[. ])?(\\d+):(\\d+)(?::(\\d+)(\\.\\d*)?)?$/,\n        // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html\n        // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere\n        // and further modified to allow for strings containing both week and day\n        isoRegex =\n            /^(-|\\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;\n\n    function createDuration(input, key) {\n        var duration = input,\n            // matching against regexp is expensive, do it on demand\n            match = null,\n            sign,\n            ret,\n            diffRes;\n\n        if (isDuration(input)) {\n            duration = {\n                ms: input._milliseconds,\n                d: input._days,\n                M: input._months,\n            };\n        } else if (isNumber(input) || !isNaN(+input)) {\n            duration = {};\n            if (key) {\n                duration[key] = +input;\n            } else {\n                duration.milliseconds = +input;\n            }\n        } else if ((match = aspNetRegex.exec(input))) {\n            sign = match[1] === '-' ? -1 : 1;\n            duration = {\n                y: 0,\n                d: toInt(match[DATE]) * sign,\n                h: toInt(match[HOUR]) * sign,\n                m: toInt(match[MINUTE]) * sign,\n                s: toInt(match[SECOND]) * sign,\n                ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign, // the millisecond decimal point is included in the match\n            };\n        } else if ((match = isoRegex.exec(input))) {\n            sign = match[1] === '-' ? -1 : 1;\n            duration = {\n                y: parseIso(match[2], sign),\n                M: parseIso(match[3], sign),\n                w: parseIso(match[4], sign),\n                d: parseIso(match[5], sign),\n                h: parseIso(match[6], sign),\n                m: parseIso(match[7], sign),\n                s: parseIso(match[8], sign),\n            };\n        } else if (duration == null) {\n            // checks for null or undefined\n            duration = {};\n        } else if (\n            typeof duration === 'object' &&\n            ('from' in duration || 'to' in duration)\n        ) {\n            diffRes = momentsDifference(\n                createLocal(duration.from),\n                createLocal(duration.to)\n            );\n\n            duration = {};\n            duration.ms = diffRes.milliseconds;\n            duration.M = diffRes.months;\n        }\n\n        ret = new Duration(duration);\n\n        if (isDuration(input) && hasOwnProp(input, '_locale')) {\n            ret._locale = input._locale;\n        }\n\n        if (isDuration(input) && hasOwnProp(input, '_isValid')) {\n            ret._isValid = input._isValid;\n        }\n\n        return ret;\n    }\n\n    createDuration.fn = Duration.prototype;\n    createDuration.invalid = createInvalid$1;\n\n    function parseIso(inp, sign) {\n        // We'd normally use ~~inp for this, but unfortunately it also\n        // converts floats to ints.\n        // inp may be undefined, so careful calling replace on it.\n        var res = inp && parseFloat(inp.replace(',', '.'));\n        // apply sign while we're at it\n        return (isNaN(res) ? 0 : res) * sign;\n    }\n\n    function positiveMomentsDifference(base, other) {\n        var res = {};\n\n        res.months =\n            other.month() - base.month() + (other.year() - base.year()) * 12;\n        if (base.clone().add(res.months, 'M').isAfter(other)) {\n            --res.months;\n        }\n\n        res.milliseconds = +other - +base.clone().add(res.months, 'M');\n\n        return res;\n    }\n\n    function momentsDifference(base, other) {\n        var res;\n        if (!(base.isValid() && other.isValid())) {\n            return { milliseconds: 0, months: 0 };\n        }\n\n        other = cloneWithOffset(other, base);\n        if (base.isBefore(other)) {\n            res = positiveMomentsDifference(base, other);\n        } else {\n            res = positiveMomentsDifference(other, base);\n            res.milliseconds = -res.milliseconds;\n            res.months = -res.months;\n        }\n\n        return res;\n    }\n\n    // TODO: remove 'name' arg after deprecation is removed\n    function createAdder(direction, name) {\n        return function (val, period) {\n            var dur, tmp;\n            //invert the arguments, but complain about it\n            if (period !== null && !isNaN(+period)) {\n                deprecateSimple(\n                    name,\n                    'moment().' +\n                        name +\n                        '(period, number) is deprecated. Please use moment().' +\n                        name +\n                        '(number, period). ' +\n                        'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.'\n                );\n                tmp = val;\n                val = period;\n                period = tmp;\n            }\n\n            dur = createDuration(val, period);\n            addSubtract(this, dur, direction);\n            return this;\n        };\n    }\n\n    function addSubtract(mom, duration, isAdding, updateOffset) {\n        var milliseconds = duration._milliseconds,\n            days = absRound(duration._days),\n            months = absRound(duration._months);\n\n        if (!mom.isValid()) {\n            // No op\n            return;\n        }\n\n        updateOffset = updateOffset == null ? true : updateOffset;\n\n        if (months) {\n            setMonth(mom, get(mom, 'Month') + months * isAdding);\n        }\n        if (days) {\n            set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);\n        }\n        if (milliseconds) {\n            mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);\n        }\n        if (updateOffset) {\n            hooks.updateOffset(mom, days || months);\n        }\n    }\n\n    var add = createAdder(1, 'add'),\n        subtract = createAdder(-1, 'subtract');\n\n    function isString(input) {\n        return typeof input === 'string' || input instanceof String;\n    }\n\n    // type MomentInput = Moment | Date | string | number | (number | string)[] | MomentInputObject | void; // null | undefined\n    function isMomentInput(input) {\n        return (\n            isMoment(input) ||\n            isDate(input) ||\n            isString(input) ||\n            isNumber(input) ||\n            isNumberOrStringArray(input) ||\n            isMomentInputObject(input) ||\n            input === null ||\n            input === undefined\n        );\n    }\n\n    function isMomentInputObject(input) {\n        var objectTest = isObject(input) && !isObjectEmpty(input),\n            propertyTest = false,\n            properties = [\n                'years',\n                'year',\n                'y',\n                'months',\n                'month',\n                'M',\n                'days',\n                'day',\n                'd',\n                'dates',\n                'date',\n                'D',\n                'hours',\n                'hour',\n                'h',\n                'minutes',\n                'minute',\n                'm',\n                'seconds',\n                'second',\n                's',\n                'milliseconds',\n                'millisecond',\n                'ms',\n            ],\n            i,\n            property,\n            propertyLen = properties.length;\n\n        for (i = 0; i < propertyLen; i += 1) {\n            property = properties[i];\n            propertyTest = propertyTest || hasOwnProp(input, property);\n        }\n\n        return objectTest && propertyTest;\n    }\n\n    function isNumberOrStringArray(input) {\n        var arrayTest = isArray(input),\n            dataTypeTest = false;\n        if (arrayTest) {\n            dataTypeTest =\n                input.filter(function (item) {\n                    return !isNumber(item) && isString(input);\n                }).length === 0;\n        }\n        return arrayTest && dataTypeTest;\n    }\n\n    function isCalendarSpec(input) {\n        var objectTest = isObject(input) && !isObjectEmpty(input),\n            propertyTest = false,\n            properties = [\n                'sameDay',\n                'nextDay',\n                'lastDay',\n                'nextWeek',\n                'lastWeek',\n                'sameElse',\n            ],\n            i,\n            property;\n\n        for (i = 0; i < properties.length; i += 1) {\n            property = properties[i];\n            propertyTest = propertyTest || hasOwnProp(input, property);\n        }\n\n        return objectTest && propertyTest;\n    }\n\n    function getCalendarFormat(myMoment, now) {\n        var diff = myMoment.diff(now, 'days', true);\n        return diff < -6\n            ? 'sameElse'\n            : diff < -1\n              ? 'lastWeek'\n              : diff < 0\n                ? 'lastDay'\n                : diff < 1\n                  ? 'sameDay'\n                  : diff < 2\n                    ? 'nextDay'\n                    : diff < 7\n                      ? 'nextWeek'\n                      : 'sameElse';\n    }\n\n    function calendar$1(time, formats) {\n        // Support for single parameter, formats only overload to the calendar function\n        if (arguments.length === 1) {\n            if (!arguments[0]) {\n                time = undefined;\n                formats = undefined;\n            } else if (isMomentInput(arguments[0])) {\n                time = arguments[0];\n                formats = undefined;\n            } else if (isCalendarSpec(arguments[0])) {\n                formats = arguments[0];\n                time = undefined;\n            }\n        }\n        // We want to compare the start of today, vs this.\n        // Getting start-of-today depends on whether we're local/utc/offset or not.\n        var now = time || createLocal(),\n            sod = cloneWithOffset(now, this).startOf('day'),\n            format = hooks.calendarFormat(this, sod) || 'sameElse',\n            output =\n                formats &&\n                (isFunction(formats[format])\n                    ? formats[format].call(this, now)\n                    : formats[format]);\n\n        return this.format(\n            output || this.localeData().calendar(format, this, createLocal(now))\n        );\n    }\n\n    function clone() {\n        return new Moment(this);\n    }\n\n    function isAfter(input, units) {\n        var localInput = isMoment(input) ? input : createLocal(input);\n        if (!(this.isValid() && localInput.isValid())) {\n            return false;\n        }\n        units = normalizeUnits(units) || 'millisecond';\n        if (units === 'millisecond') {\n            return this.valueOf() > localInput.valueOf();\n        } else {\n            return localInput.valueOf() < this.clone().startOf(units).valueOf();\n        }\n    }\n\n    function isBefore(input, units) {\n        var localInput = isMoment(input) ? input : createLocal(input);\n        if (!(this.isValid() && localInput.isValid())) {\n            return false;\n        }\n        units = normalizeUnits(units) || 'millisecond';\n        if (units === 'millisecond') {\n            return this.valueOf() < localInput.valueOf();\n        } else {\n            return this.clone().endOf(units).valueOf() < localInput.valueOf();\n        }\n    }\n\n    function isBetween(from, to, units, inclusivity) {\n        var localFrom = isMoment(from) ? from : createLocal(from),\n            localTo = isMoment(to) ? to : createLocal(to);\n        if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {\n            return false;\n        }\n        inclusivity = inclusivity || '()';\n        return (\n            (inclusivity[0] === '('\n                ? this.isAfter(localFrom, units)\n                : !this.isBefore(localFrom, units)) &&\n            (inclusivity[1] === ')'\n                ? this.isBefore(localTo, units)\n                : !this.isAfter(localTo, units))\n        );\n    }\n\n    function isSame(input, units) {\n        var localInput = isMoment(input) ? input : createLocal(input),\n            inputMs;\n        if (!(this.isValid() && localInput.isValid())) {\n            return false;\n        }\n        units = normalizeUnits(units) || 'millisecond';\n        if (units === 'millisecond') {\n            return this.valueOf() === localInput.valueOf();\n        } else {\n            inputMs = localInput.valueOf();\n            return (\n                this.clone().startOf(units).valueOf() <= inputMs &&\n                inputMs <= this.clone().endOf(units).valueOf()\n            );\n        }\n    }\n\n    function isSameOrAfter(input, units) {\n        return this.isSame(input, units) || this.isAfter(input, units);\n    }\n\n    function isSameOrBefore(input, units) {\n        return this.isSame(input, units) || this.isBefore(input, units);\n    }\n\n    function diff(input, units, asFloat) {\n        var that, zoneDelta, output;\n\n        if (!this.isValid()) {\n            return NaN;\n        }\n\n        that = cloneWithOffset(input, this);\n\n        if (!that.isValid()) {\n            return NaN;\n        }\n\n        zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;\n\n        units = normalizeUnits(units);\n\n        switch (units) {\n            case 'year':\n                output = monthDiff(this, that) / 12;\n                break;\n            case 'month':\n                output = monthDiff(this, that);\n                break;\n            case 'quarter':\n                output = monthDiff(this, that) / 3;\n                break;\n            case 'second':\n                output = (this - that) / 1e3;\n                break; // 1000\n            case 'minute':\n                output = (this - that) / 6e4;\n                break; // 1000 * 60\n            case 'hour':\n                output = (this - that) / 36e5;\n                break; // 1000 * 60 * 60\n            case 'day':\n                output = (this - that - zoneDelta) / 864e5;\n                break; // 1000 * 60 * 60 * 24, negate dst\n            case 'week':\n                output = (this - that - zoneDelta) / 6048e5;\n                break; // 1000 * 60 * 60 * 24 * 7, negate dst\n            default:\n                output = this - that;\n        }\n\n        return asFloat ? output : absFloor(output);\n    }\n\n    function monthDiff(a, b) {\n        if (a.date() < b.date()) {\n            // end-of-month calculations work correct when the start month has more\n            // days than the end month.\n            return -monthDiff(b, a);\n        }\n        // difference in months\n        var wholeMonthDiff = (b.year() - a.year()) * 12 + (b.month() - a.month()),\n            // b is in (anchor - 1 month, anchor + 1 month)\n            anchor = a.clone().add(wholeMonthDiff, 'months'),\n            anchor2,\n            adjust;\n\n        if (b - anchor < 0) {\n            anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');\n            // linear across the month\n            adjust = (b - anchor) / (anchor - anchor2);\n        } else {\n            anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');\n            // linear across the month\n            adjust = (b - anchor) / (anchor2 - anchor);\n        }\n\n        //check for negative zero, return zero if negative zero\n        return -(wholeMonthDiff + adjust) || 0;\n    }\n\n    hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';\n    hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';\n\n    function toString() {\n        return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');\n    }\n\n    function toISOString(keepOffset) {\n        if (!this.isValid()) {\n            return null;\n        }\n        var utc = keepOffset !== true,\n            m = utc ? this.clone().utc() : this;\n        if (m.year() < 0 || m.year() > 9999) {\n            return formatMoment(\n                m,\n                utc\n                    ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]'\n                    : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ'\n            );\n        }\n        if (isFunction(Date.prototype.toISOString)) {\n            // native implementation is ~50x faster, use it when we can\n            if (utc) {\n                return this.toDate().toISOString();\n            } else {\n                return new Date(this.valueOf() + this.utcOffset() * 60 * 1000)\n                    .toISOString()\n                    .replace('Z', formatMoment(m, 'Z'));\n            }\n        }\n        return formatMoment(\n            m,\n            utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ'\n        );\n    }\n\n    /**\n     * Return a human readable representation of a moment that can\n     * also be evaluated to get a new moment which is the same\n     *\n     * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects\n     */\n    function inspect() {\n        if (!this.isValid()) {\n            return 'moment.invalid(/* ' + this._i + ' */)';\n        }\n        var func = 'moment',\n            zone = '',\n            prefix,\n            year,\n            datetime,\n            suffix;\n        if (!this.isLocal()) {\n            func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';\n            zone = 'Z';\n        }\n        prefix = '[' + func + '(\"]';\n        year = 0 <= this.year() && this.year() <= 9999 ? 'YYYY' : 'YYYYYY';\n        datetime = '-MM-DD[T]HH:mm:ss.SSS';\n        suffix = zone + '[\")]';\n\n        return this.format(prefix + year + datetime + suffix);\n    }\n\n    function format(inputString) {\n        if (!inputString) {\n            inputString = this.isUtc()\n                ? hooks.defaultFormatUtc\n                : hooks.defaultFormat;\n        }\n        var output = formatMoment(this, inputString);\n        return this.localeData().postformat(output);\n    }\n\n    function from(time, withoutSuffix) {\n        if (\n            this.isValid() &&\n            ((isMoment(time) && time.isValid()) || createLocal(time).isValid())\n        ) {\n            return createDuration({ to: this, from: time })\n                .locale(this.locale())\n                .humanize(!withoutSuffix);\n        } else {\n            return this.localeData().invalidDate();\n        }\n    }\n\n    function fromNow(withoutSuffix) {\n        return this.from(createLocal(), withoutSuffix);\n    }\n\n    function to(time, withoutSuffix) {\n        if (\n            this.isValid() &&\n            ((isMoment(time) && time.isValid()) || createLocal(time).isValid())\n        ) {\n            return createDuration({ from: this, to: time })\n                .locale(this.locale())\n                .humanize(!withoutSuffix);\n        } else {\n            return this.localeData().invalidDate();\n        }\n    }\n\n    function toNow(withoutSuffix) {\n        return this.to(createLocal(), withoutSuffix);\n    }\n\n    // If passed a locale key, it will set the locale for this\n    // instance.  Otherwise, it will return the locale configuration\n    // variables for this instance.\n    function locale(key) {\n        var newLocaleData;\n\n        if (key === undefined) {\n            return this._locale._abbr;\n        } else {\n            newLocaleData = getLocale(key);\n            if (newLocaleData != null) {\n                this._locale = newLocaleData;\n            }\n            return this;\n        }\n    }\n\n    var lang = deprecate(\n        'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',\n        function (key) {\n            if (key === undefined) {\n                return this.localeData();\n            } else {\n                return this.locale(key);\n            }\n        }\n    );\n\n    function localeData() {\n        return this._locale;\n    }\n\n    var MS_PER_SECOND = 1000,\n        MS_PER_MINUTE = 60 * MS_PER_SECOND,\n        MS_PER_HOUR = 60 * MS_PER_MINUTE,\n        MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;\n\n    // actual modulo - handles negative numbers (for dates before 1970):\n    function mod$1(dividend, divisor) {\n        return ((dividend % divisor) + divisor) % divisor;\n    }\n\n    function localStartOfDate(y, m, d) {\n        // the date constructor remaps years 0-99 to 1900-1999\n        if (y < 100 && y >= 0) {\n            // preserve leap years using a full 400 year cycle, then reset\n            return new Date(y + 400, m, d) - MS_PER_400_YEARS;\n        } else {\n            return new Date(y, m, d).valueOf();\n        }\n    }\n\n    function utcStartOfDate(y, m, d) {\n        // Date.UTC remaps years 0-99 to 1900-1999\n        if (y < 100 && y >= 0) {\n            // preserve leap years using a full 400 year cycle, then reset\n            return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;\n        } else {\n            return Date.UTC(y, m, d);\n        }\n    }\n\n    function startOf(units) {\n        var time, startOfDate;\n        units = normalizeUnits(units);\n        if (units === undefined || units === 'millisecond' || !this.isValid()) {\n            return this;\n        }\n\n        startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;\n\n        switch (units) {\n            case 'year':\n                time = startOfDate(this.year(), 0, 1);\n                break;\n            case 'quarter':\n                time = startOfDate(\n                    this.year(),\n                    this.month() - (this.month() % 3),\n                    1\n                );\n                break;\n            case 'month':\n                time = startOfDate(this.year(), this.month(), 1);\n                break;\n            case 'week':\n                time = startOfDate(\n                    this.year(),\n                    this.month(),\n                    this.date() - this.weekday()\n                );\n                break;\n            case 'isoWeek':\n                time = startOfDate(\n                    this.year(),\n                    this.month(),\n                    this.date() - (this.isoWeekday() - 1)\n                );\n                break;\n            case 'day':\n            case 'date':\n                time = startOfDate(this.year(), this.month(), this.date());\n                break;\n            case 'hour':\n                time = this._d.valueOf();\n                time -= mod$1(\n                    time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),\n                    MS_PER_HOUR\n                );\n                break;\n            case 'minute':\n                time = this._d.valueOf();\n                time -= mod$1(time, MS_PER_MINUTE);\n                break;\n            case 'second':\n                time = this._d.valueOf();\n                time -= mod$1(time, MS_PER_SECOND);\n                break;\n        }\n\n        this._d.setTime(time);\n        hooks.updateOffset(this, true);\n        return this;\n    }\n\n    function endOf(units) {\n        var time, startOfDate;\n        units = normalizeUnits(units);\n        if (units === undefined || units === 'millisecond' || !this.isValid()) {\n            return this;\n        }\n\n        startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;\n\n        switch (units) {\n            case 'year':\n                time = startOfDate(this.year() + 1, 0, 1) - 1;\n                break;\n            case 'quarter':\n                time =\n                    startOfDate(\n                        this.year(),\n                        this.month() - (this.month() % 3) + 3,\n                        1\n                    ) - 1;\n                break;\n            case 'month':\n                time = startOfDate(this.year(), this.month() + 1, 1) - 1;\n                break;\n            case 'week':\n                time =\n                    startOfDate(\n                        this.year(),\n                        this.month(),\n                        this.date() - this.weekday() + 7\n                    ) - 1;\n                break;\n            case 'isoWeek':\n                time =\n                    startOfDate(\n                        this.year(),\n                        this.month(),\n                        this.date() - (this.isoWeekday() - 1) + 7\n                    ) - 1;\n                break;\n            case 'day':\n            case 'date':\n                time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;\n                break;\n            case 'hour':\n                time = this._d.valueOf();\n                time +=\n                    MS_PER_HOUR -\n                    mod$1(\n                        time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),\n                        MS_PER_HOUR\n                    ) -\n                    1;\n                break;\n            case 'minute':\n                time = this._d.valueOf();\n                time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;\n                break;\n            case 'second':\n                time = this._d.valueOf();\n                time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;\n                break;\n        }\n\n        this._d.setTime(time);\n        hooks.updateOffset(this, true);\n        return this;\n    }\n\n    function valueOf() {\n        return this._d.valueOf() - (this._offset || 0) * 60000;\n    }\n\n    function unix() {\n        return Math.floor(this.valueOf() / 1000);\n    }\n\n    function toDate() {\n        return new Date(this.valueOf());\n    }\n\n    function toArray() {\n        var m = this;\n        return [\n            m.year(),\n            m.month(),\n            m.date(),\n            m.hour(),\n            m.minute(),\n            m.second(),\n            m.millisecond(),\n        ];\n    }\n\n    function toObject() {\n        var m = this;\n        return {\n            years: m.year(),\n            months: m.month(),\n            date: m.date(),\n            hours: m.hours(),\n            minutes: m.minutes(),\n            seconds: m.seconds(),\n            milliseconds: m.milliseconds(),\n        };\n    }\n\n    function toJSON() {\n        // new Date(NaN).toJSON() === null\n        return this.isValid() ? this.toISOString() : null;\n    }\n\n    function isValid$2() {\n        return isValid(this);\n    }\n\n    function parsingFlags() {\n        return extend({}, getParsingFlags(this));\n    }\n\n    function invalidAt() {\n        return getParsingFlags(this).overflow;\n    }\n\n    function creationData() {\n        return {\n            input: this._i,\n            format: this._f,\n            locale: this._locale,\n            isUTC: this._isUTC,\n            strict: this._strict,\n        };\n    }\n\n    addFormatToken('N', 0, 0, 'eraAbbr');\n    addFormatToken('NN', 0, 0, 'eraAbbr');\n    addFormatToken('NNN', 0, 0, 'eraAbbr');\n    addFormatToken('NNNN', 0, 0, 'eraName');\n    addFormatToken('NNNNN', 0, 0, 'eraNarrow');\n\n    addFormatToken('y', ['y', 1], 'yo', 'eraYear');\n    addFormatToken('y', ['yy', 2], 0, 'eraYear');\n    addFormatToken('y', ['yyy', 3], 0, 'eraYear');\n    addFormatToken('y', ['yyyy', 4], 0, 'eraYear');\n\n    addRegexToken('N', matchEraAbbr);\n    addRegexToken('NN', matchEraAbbr);\n    addRegexToken('NNN', matchEraAbbr);\n    addRegexToken('NNNN', matchEraName);\n    addRegexToken('NNNNN', matchEraNarrow);\n\n    addParseToken(\n        ['N', 'NN', 'NNN', 'NNNN', 'NNNNN'],\n        function (input, array, config, token) {\n            var era = config._locale.erasParse(input, token, config._strict);\n            if (era) {\n                getParsingFlags(config).era = era;\n            } else {\n                getParsingFlags(config).invalidEra = input;\n            }\n        }\n    );\n\n    addRegexToken('y', matchUnsigned);\n    addRegexToken('yy', matchUnsigned);\n    addRegexToken('yyy', matchUnsigned);\n    addRegexToken('yyyy', matchUnsigned);\n    addRegexToken('yo', matchEraYearOrdinal);\n\n    addParseToken(['y', 'yy', 'yyy', 'yyyy'], YEAR);\n    addParseToken(['yo'], function (input, array, config, token) {\n        var match;\n        if (config._locale._eraYearOrdinalRegex) {\n            match = input.match(config._locale._eraYearOrdinalRegex);\n        }\n\n        if (config._locale.eraYearOrdinalParse) {\n            array[YEAR] = config._locale.eraYearOrdinalParse(input, match);\n        } else {\n            array[YEAR] = parseInt(input, 10);\n        }\n    });\n\n    function localeEras(m, format) {\n        var i,\n            l,\n            date,\n            eras = this._eras || getLocale('en')._eras;\n        for (i = 0, l = eras.length; i < l; ++i) {\n            switch (typeof eras[i].since) {\n                case 'string':\n                    // truncate time\n                    date = hooks(eras[i].since).startOf('day');\n                    eras[i].since = date.valueOf();\n                    break;\n            }\n\n            switch (typeof eras[i].until) {\n                case 'undefined':\n                    eras[i].until = +Infinity;\n                    break;\n                case 'string':\n                    // truncate time\n                    date = hooks(eras[i].until).startOf('day').valueOf();\n                    eras[i].until = date.valueOf();\n                    break;\n            }\n        }\n        return eras;\n    }\n\n    function localeErasParse(eraName, format, strict) {\n        var i,\n            l,\n            eras = this.eras(),\n            name,\n            abbr,\n            narrow;\n        eraName = eraName.toUpperCase();\n\n        for (i = 0, l = eras.length; i < l; ++i) {\n            name = eras[i].name.toUpperCase();\n            abbr = eras[i].abbr.toUpperCase();\n            narrow = eras[i].narrow.toUpperCase();\n\n            if (strict) {\n                switch (format) {\n                    case 'N':\n                    case 'NN':\n                    case 'NNN':\n                        if (abbr === eraName) {\n                            return eras[i];\n                        }\n                        break;\n\n                    case 'NNNN':\n                        if (name === eraName) {\n                            return eras[i];\n                        }\n                        break;\n\n                    case 'NNNNN':\n                        if (narrow === eraName) {\n                            return eras[i];\n                        }\n                        break;\n                }\n            } else if ([name, abbr, narrow].indexOf(eraName) >= 0) {\n                return eras[i];\n            }\n        }\n    }\n\n    function localeErasConvertYear(era, year) {\n        var dir = era.since <= era.until ? +1 : -1;\n        if (year === undefined) {\n            return hooks(era.since).year();\n        } else {\n            return hooks(era.since).year() + (year - era.offset) * dir;\n        }\n    }\n\n    function getEraName() {\n        var i,\n            l,\n            val,\n            eras = this.localeData().eras();\n        for (i = 0, l = eras.length; i < l; ++i) {\n            // truncate time\n            val = this.clone().startOf('day').valueOf();\n\n            if (eras[i].since <= val && val <= eras[i].until) {\n                return eras[i].name;\n            }\n            if (eras[i].until <= val && val <= eras[i].since) {\n                return eras[i].name;\n            }\n        }\n\n        return '';\n    }\n\n    function getEraNarrow() {\n        var i,\n            l,\n            val,\n            eras = this.localeData().eras();\n        for (i = 0, l = eras.length; i < l; ++i) {\n            // truncate time\n            val = this.clone().startOf('day').valueOf();\n\n            if (eras[i].since <= val && val <= eras[i].until) {\n                return eras[i].narrow;\n            }\n            if (eras[i].until <= val && val <= eras[i].since) {\n                return eras[i].narrow;\n            }\n        }\n\n        return '';\n    }\n\n    function getEraAbbr() {\n        var i,\n            l,\n            val,\n            eras = this.localeData().eras();\n        for (i = 0, l = eras.length; i < l; ++i) {\n            // truncate time\n            val = this.clone().startOf('day').valueOf();\n\n            if (eras[i].since <= val && val <= eras[i].until) {\n                return eras[i].abbr;\n            }\n            if (eras[i].until <= val && val <= eras[i].since) {\n                return eras[i].abbr;\n            }\n        }\n\n        return '';\n    }\n\n    function getEraYear() {\n        var i,\n            l,\n            dir,\n            val,\n            eras = this.localeData().eras();\n        for (i = 0, l = eras.length; i < l; ++i) {\n            dir = eras[i].since <= eras[i].until ? +1 : -1;\n\n            // truncate time\n            val = this.clone().startOf('day').valueOf();\n\n            if (\n                (eras[i].since <= val && val <= eras[i].until) ||\n                (eras[i].until <= val && val <= eras[i].since)\n            ) {\n                return (\n                    (this.year() - hooks(eras[i].since).year()) * dir +\n                    eras[i].offset\n                );\n            }\n        }\n\n        return this.year();\n    }\n\n    function erasNameRegex(isStrict) {\n        if (!hasOwnProp(this, '_erasNameRegex')) {\n            computeErasParse.call(this);\n        }\n        return isStrict ? this._erasNameRegex : this._erasRegex;\n    }\n\n    function erasAbbrRegex(isStrict) {\n        if (!hasOwnProp(this, '_erasAbbrRegex')) {\n            computeErasParse.call(this);\n        }\n        return isStrict ? this._erasAbbrRegex : this._erasRegex;\n    }\n\n    function erasNarrowRegex(isStrict) {\n        if (!hasOwnProp(this, '_erasNarrowRegex')) {\n            computeErasParse.call(this);\n        }\n        return isStrict ? this._erasNarrowRegex : this._erasRegex;\n    }\n\n    function matchEraAbbr(isStrict, locale) {\n        return locale.erasAbbrRegex(isStrict);\n    }\n\n    function matchEraName(isStrict, locale) {\n        return locale.erasNameRegex(isStrict);\n    }\n\n    function matchEraNarrow(isStrict, locale) {\n        return locale.erasNarrowRegex(isStrict);\n    }\n\n    function matchEraYearOrdinal(isStrict, locale) {\n        return locale._eraYearOrdinalRegex || matchUnsigned;\n    }\n\n    function computeErasParse() {\n        var abbrPieces = [],\n            namePieces = [],\n            narrowPieces = [],\n            mixedPieces = [],\n            i,\n            l,\n            erasName,\n            erasAbbr,\n            erasNarrow,\n            eras = this.eras();\n\n        for (i = 0, l = eras.length; i < l; ++i) {\n            erasName = regexEscape(eras[i].name);\n            erasAbbr = regexEscape(eras[i].abbr);\n            erasNarrow = regexEscape(eras[i].narrow);\n\n            namePieces.push(erasName);\n            abbrPieces.push(erasAbbr);\n            narrowPieces.push(erasNarrow);\n            mixedPieces.push(erasName);\n            mixedPieces.push(erasAbbr);\n            mixedPieces.push(erasNarrow);\n        }\n\n        this._erasRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');\n        this._erasNameRegex = new RegExp('^(' + namePieces.join('|') + ')', 'i');\n        this._erasAbbrRegex = new RegExp('^(' + abbrPieces.join('|') + ')', 'i');\n        this._erasNarrowRegex = new RegExp(\n            '^(' + narrowPieces.join('|') + ')',\n            'i'\n        );\n    }\n\n    // FORMATTING\n\n    addFormatToken(0, ['gg', 2], 0, function () {\n        return this.weekYear() % 100;\n    });\n\n    addFormatToken(0, ['GG', 2], 0, function () {\n        return this.isoWeekYear() % 100;\n    });\n\n    function addWeekYearFormatToken(token, getter) {\n        addFormatToken(0, [token, token.length], 0, getter);\n    }\n\n    addWeekYearFormatToken('gggg', 'weekYear');\n    addWeekYearFormatToken('ggggg', 'weekYear');\n    addWeekYearFormatToken('GGGG', 'isoWeekYear');\n    addWeekYearFormatToken('GGGGG', 'isoWeekYear');\n\n    // ALIASES\n\n    // PARSING\n\n    addRegexToken('G', matchSigned);\n    addRegexToken('g', matchSigned);\n    addRegexToken('GG', match1to2, match2);\n    addRegexToken('gg', match1to2, match2);\n    addRegexToken('GGGG', match1to4, match4);\n    addRegexToken('gggg', match1to4, match4);\n    addRegexToken('GGGGG', match1to6, match6);\n    addRegexToken('ggggg', match1to6, match6);\n\n    addWeekParseToken(\n        ['gggg', 'ggggg', 'GGGG', 'GGGGG'],\n        function (input, week, config, token) {\n            week[token.substr(0, 2)] = toInt(input);\n        }\n    );\n\n    addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {\n        week[token] = hooks.parseTwoDigitYear(input);\n    });\n\n    // MOMENTS\n\n    function getSetWeekYear(input) {\n        return getSetWeekYearHelper.call(\n            this,\n            input,\n            this.week(),\n            this.weekday() + this.localeData()._week.dow,\n            this.localeData()._week.dow,\n            this.localeData()._week.doy\n        );\n    }\n\n    function getSetISOWeekYear(input) {\n        return getSetWeekYearHelper.call(\n            this,\n            input,\n            this.isoWeek(),\n            this.isoWeekday(),\n            1,\n            4\n        );\n    }\n\n    function getISOWeeksInYear() {\n        return weeksInYear(this.year(), 1, 4);\n    }\n\n    function getISOWeeksInISOWeekYear() {\n        return weeksInYear(this.isoWeekYear(), 1, 4);\n    }\n\n    function getWeeksInYear() {\n        var weekInfo = this.localeData()._week;\n        return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);\n    }\n\n    function getWeeksInWeekYear() {\n        var weekInfo = this.localeData()._week;\n        return weeksInYear(this.weekYear(), weekInfo.dow, weekInfo.doy);\n    }\n\n    function getSetWeekYearHelper(input, week, weekday, dow, doy) {\n        var weeksTarget;\n        if (input == null) {\n            return weekOfYear(this, dow, doy).year;\n        } else {\n            weeksTarget = weeksInYear(input, dow, doy);\n            if (week > weeksTarget) {\n                week = weeksTarget;\n            }\n            return setWeekAll.call(this, input, week, weekday, dow, doy);\n        }\n    }\n\n    function setWeekAll(weekYear, week, weekday, dow, doy) {\n        var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),\n            date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);\n\n        this.year(date.getUTCFullYear());\n        this.month(date.getUTCMonth());\n        this.date(date.getUTCDate());\n        return this;\n    }\n\n    // FORMATTING\n\n    addFormatToken('Q', 0, 'Qo', 'quarter');\n\n    // PARSING\n\n    addRegexToken('Q', match1);\n    addParseToken('Q', function (input, array) {\n        array[MONTH] = (toInt(input) - 1) * 3;\n    });\n\n    // MOMENTS\n\n    function getSetQuarter(input) {\n        return input == null\n            ? Math.ceil((this.month() + 1) / 3)\n            : this.month((input - 1) * 3 + (this.month() % 3));\n    }\n\n    // FORMATTING\n\n    addFormatToken('D', ['DD', 2], 'Do', 'date');\n\n    // PARSING\n\n    addRegexToken('D', match1to2, match1to2NoLeadingZero);\n    addRegexToken('DD', match1to2, match2);\n    addRegexToken('Do', function (isStrict, locale) {\n        // TODO: Remove \"ordinalParse\" fallback in next major release.\n        return isStrict\n            ? locale._dayOfMonthOrdinalParse || locale._ordinalParse\n            : locale._dayOfMonthOrdinalParseLenient;\n    });\n\n    addParseToken(['D', 'DD'], DATE);\n    addParseToken('Do', function (input, array) {\n        array[DATE] = toInt(input.match(match1to2)[0]);\n    });\n\n    // MOMENTS\n\n    var getSetDayOfMonth = makeGetSet('Date', true);\n\n    // FORMATTING\n\n    addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');\n\n    // PARSING\n\n    addRegexToken('DDD', match1to3);\n    addRegexToken('DDDD', match3);\n    addParseToken(['DDD', 'DDDD'], function (input, array, config) {\n        config._dayOfYear = toInt(input);\n    });\n\n    // HELPERS\n\n    // MOMENTS\n\n    function getSetDayOfYear(input) {\n        var dayOfYear =\n            Math.round(\n                (this.clone().startOf('day') - this.clone().startOf('year')) / 864e5\n            ) + 1;\n        return input == null ? dayOfYear : this.add(input - dayOfYear, 'd');\n    }\n\n    // FORMATTING\n\n    addFormatToken('m', ['mm', 2], 0, 'minute');\n\n    // PARSING\n\n    addRegexToken('m', match1to2, match1to2HasZero);\n    addRegexToken('mm', match1to2, match2);\n    addParseToken(['m', 'mm'], MINUTE);\n\n    // MOMENTS\n\n    var getSetMinute = makeGetSet('Minutes', false);\n\n    // FORMATTING\n\n    addFormatToken('s', ['ss', 2], 0, 'second');\n\n    // PARSING\n\n    addRegexToken('s', match1to2, match1to2HasZero);\n    addRegexToken('ss', match1to2, match2);\n    addParseToken(['s', 'ss'], SECOND);\n\n    // MOMENTS\n\n    var getSetSecond = makeGetSet('Seconds', false);\n\n    // FORMATTING\n\n    addFormatToken('S', 0, 0, function () {\n        return ~~(this.millisecond() / 100);\n    });\n\n    addFormatToken(0, ['SS', 2], 0, function () {\n        return ~~(this.millisecond() / 10);\n    });\n\n    addFormatToken(0, ['SSS', 3], 0, 'millisecond');\n    addFormatToken(0, ['SSSS', 4], 0, function () {\n        return this.millisecond() * 10;\n    });\n    addFormatToken(0, ['SSSSS', 5], 0, function () {\n        return this.millisecond() * 100;\n    });\n    addFormatToken(0, ['SSSSSS', 6], 0, function () {\n        return this.millisecond() * 1000;\n    });\n    addFormatToken(0, ['SSSSSSS', 7], 0, function () {\n        return this.millisecond() * 10000;\n    });\n    addFormatToken(0, ['SSSSSSSS', 8], 0, function () {\n        return this.millisecond() * 100000;\n    });\n    addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {\n        return this.millisecond() * 1000000;\n    });\n\n    // PARSING\n\n    addRegexToken('S', match1to3, match1);\n    addRegexToken('SS', match1to3, match2);\n    addRegexToken('SSS', match1to3, match3);\n\n    var token, getSetMillisecond;\n    for (token = 'SSSS'; token.length <= 9; token += 'S') {\n        addRegexToken(token, matchUnsigned);\n    }\n\n    function parseMs(input, array) {\n        array[MILLISECOND] = toInt(('0.' + input) * 1000);\n    }\n\n    for (token = 'S'; token.length <= 9; token += 'S') {\n        addParseToken(token, parseMs);\n    }\n\n    getSetMillisecond = makeGetSet('Milliseconds', false);\n\n    // FORMATTING\n\n    addFormatToken('z', 0, 0, 'zoneAbbr');\n    addFormatToken('zz', 0, 0, 'zoneName');\n\n    // MOMENTS\n\n    function getZoneAbbr() {\n        return this._isUTC ? 'UTC' : '';\n    }\n\n    function getZoneName() {\n        return this._isUTC ? 'Coordinated Universal Time' : '';\n    }\n\n    var proto = Moment.prototype;\n\n    proto.add = add;\n    proto.calendar = calendar$1;\n    proto.clone = clone;\n    proto.diff = diff;\n    proto.endOf = endOf;\n    proto.format = format;\n    proto.from = from;\n    proto.fromNow = fromNow;\n    proto.to = to;\n    proto.toNow = toNow;\n    proto.get = stringGet;\n    proto.invalidAt = invalidAt;\n    proto.isAfter = isAfter;\n    proto.isBefore = isBefore;\n    proto.isBetween = isBetween;\n    proto.isSame = isSame;\n    proto.isSameOrAfter = isSameOrAfter;\n    proto.isSameOrBefore = isSameOrBefore;\n    proto.isValid = isValid$2;\n    proto.lang = lang;\n    proto.locale = locale;\n    proto.localeData = localeData;\n    proto.max = prototypeMax;\n    proto.min = prototypeMin;\n    proto.parsingFlags = parsingFlags;\n    proto.set = stringSet;\n    proto.startOf = startOf;\n    proto.subtract = subtract;\n    proto.toArray = toArray;\n    proto.toObject = toObject;\n    proto.toDate = toDate;\n    proto.toISOString = toISOString;\n    proto.inspect = inspect;\n    if (typeof Symbol !== 'undefined' && Symbol.for != null) {\n        proto[Symbol.for('nodejs.util.inspect.custom')] = function () {\n            return 'Moment<' + this.format() + '>';\n        };\n    }\n    proto.toJSON = toJSON;\n    proto.toString = toString;\n    proto.unix = unix;\n    proto.valueOf = valueOf;\n    proto.creationData = creationData;\n    proto.eraName = getEraName;\n    proto.eraNarrow = getEraNarrow;\n    proto.eraAbbr = getEraAbbr;\n    proto.eraYear = getEraYear;\n    proto.year = getSetYear;\n    proto.isLeapYear = getIsLeapYear;\n    proto.weekYear = getSetWeekYear;\n    proto.isoWeekYear = getSetISOWeekYear;\n    proto.quarter = proto.quarters = getSetQuarter;\n    proto.month = getSetMonth;\n    proto.daysInMonth = getDaysInMonth;\n    proto.week = proto.weeks = getSetWeek;\n    proto.isoWeek = proto.isoWeeks = getSetISOWeek;\n    proto.weeksInYear = getWeeksInYear;\n    proto.weeksInWeekYear = getWeeksInWeekYear;\n    proto.isoWeeksInYear = getISOWeeksInYear;\n    proto.isoWeeksInISOWeekYear = getISOWeeksInISOWeekYear;\n    proto.date = getSetDayOfMonth;\n    proto.day = proto.days = getSetDayOfWeek;\n    proto.weekday = getSetLocaleDayOfWeek;\n    proto.isoWeekday = getSetISODayOfWeek;\n    proto.dayOfYear = getSetDayOfYear;\n    proto.hour = proto.hours = getSetHour;\n    proto.minute = proto.minutes = getSetMinute;\n    proto.second = proto.seconds = getSetSecond;\n    proto.millisecond = proto.milliseconds = getSetMillisecond;\n    proto.utcOffset = getSetOffset;\n    proto.utc = setOffsetToUTC;\n    proto.local = setOffsetToLocal;\n    proto.parseZone = setOffsetToParsedOffset;\n    proto.hasAlignedHourOffset = hasAlignedHourOffset;\n    proto.isDST = isDaylightSavingTime;\n    proto.isLocal = isLocal;\n    proto.isUtcOffset = isUtcOffset;\n    proto.isUtc = isUtc;\n    proto.isUTC = isUtc;\n    proto.zoneAbbr = getZoneAbbr;\n    proto.zoneName = getZoneName;\n    proto.dates = deprecate(\n        'dates accessor is deprecated. Use date instead.',\n        getSetDayOfMonth\n    );\n    proto.months = deprecate(\n        'months accessor is deprecated. Use month instead',\n        getSetMonth\n    );\n    proto.years = deprecate(\n        'years accessor is deprecated. Use year instead',\n        getSetYear\n    );\n    proto.zone = deprecate(\n        'moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/',\n        getSetZone\n    );\n    proto.isDSTShifted = deprecate(\n        'isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information',\n        isDaylightSavingTimeShifted\n    );\n\n    function createUnix(input) {\n        return createLocal(input * 1000);\n    }\n\n    function createInZone() {\n        return createLocal.apply(null, arguments).parseZone();\n    }\n\n    function preParsePostFormat(string) {\n        return string;\n    }\n\n    var proto$1 = Locale.prototype;\n\n    proto$1.calendar = calendar;\n    proto$1.longDateFormat = longDateFormat;\n    proto$1.invalidDate = invalidDate;\n    proto$1.ordinal = ordinal;\n    proto$1.preparse = preParsePostFormat;\n    proto$1.postformat = preParsePostFormat;\n    proto$1.relativeTime = relativeTime;\n    proto$1.pastFuture = pastFuture;\n    proto$1.set = set;\n    proto$1.eras = localeEras;\n    proto$1.erasParse = localeErasParse;\n    proto$1.erasConvertYear = localeErasConvertYear;\n    proto$1.erasAbbrRegex = erasAbbrRegex;\n    proto$1.erasNameRegex = erasNameRegex;\n    proto$1.erasNarrowRegex = erasNarrowRegex;\n\n    proto$1.months = localeMonths;\n    proto$1.monthsShort = localeMonthsShort;\n    proto$1.monthsParse = localeMonthsParse;\n    proto$1.monthsRegex = monthsRegex;\n    proto$1.monthsShortRegex = monthsShortRegex;\n    proto$1.week = localeWeek;\n    proto$1.firstDayOfYear = localeFirstDayOfYear;\n    proto$1.firstDayOfWeek = localeFirstDayOfWeek;\n\n    proto$1.weekdays = localeWeekdays;\n    proto$1.weekdaysMin = localeWeekdaysMin;\n    proto$1.weekdaysShort = localeWeekdaysShort;\n    proto$1.weekdaysParse = localeWeekdaysParse;\n\n    proto$1.weekdaysRegex = weekdaysRegex;\n    proto$1.weekdaysShortRegex = weekdaysShortRegex;\n    proto$1.weekdaysMinRegex = weekdaysMinRegex;\n\n    proto$1.isPM = localeIsPM;\n    proto$1.meridiem = localeMeridiem;\n\n    function get$1(format, index, field, setter) {\n        var locale = getLocale(),\n            utc = createUTC().set(setter, index);\n        return locale[field](utc, format);\n    }\n\n    function listMonthsImpl(format, index, field) {\n        if (isNumber(format)) {\n            index = format;\n            format = undefined;\n        }\n\n        format = format || '';\n\n        if (index != null) {\n            return get$1(format, index, field, 'month');\n        }\n\n        var i,\n            out = [];\n        for (i = 0; i < 12; i++) {\n            out[i] = get$1(format, i, field, 'month');\n        }\n        return out;\n    }\n\n    // ()\n    // (5)\n    // (fmt, 5)\n    // (fmt)\n    // (true)\n    // (true, 5)\n    // (true, fmt, 5)\n    // (true, fmt)\n    function listWeekdaysImpl(localeSorted, format, index, field) {\n        if (typeof localeSorted === 'boolean') {\n            if (isNumber(format)) {\n                index = format;\n                format = undefined;\n            }\n\n            format = format || '';\n        } else {\n            format = localeSorted;\n            index = format;\n            localeSorted = false;\n\n            if (isNumber(format)) {\n                index = format;\n                format = undefined;\n            }\n\n            format = format || '';\n        }\n\n        var locale = getLocale(),\n            shift = localeSorted ? locale._week.dow : 0,\n            i,\n            out = [];\n\n        if (index != null) {\n            return get$1(format, (index + shift) % 7, field, 'day');\n        }\n\n        for (i = 0; i < 7; i++) {\n            out[i] = get$1(format, (i + shift) % 7, field, 'day');\n        }\n        return out;\n    }\n\n    function listMonths(format, index) {\n        return listMonthsImpl(format, index, 'months');\n    }\n\n    function listMonthsShort(format, index) {\n        return listMonthsImpl(format, index, 'monthsShort');\n    }\n\n    function listWeekdays(localeSorted, format, index) {\n        return listWeekdaysImpl(localeSorted, format, index, 'weekdays');\n    }\n\n    function listWeekdaysShort(localeSorted, format, index) {\n        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');\n    }\n\n    function listWeekdaysMin(localeSorted, format, index) {\n        return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');\n    }\n\n    getSetGlobalLocale('en', {\n        eras: [\n            {\n                since: '0001-01-01',\n                until: +Infinity,\n                offset: 1,\n                name: 'Anno Domini',\n                narrow: 'AD',\n                abbr: 'AD',\n            },\n            {\n                since: '0000-12-31',\n                until: -Infinity,\n                offset: 1,\n                name: 'Before Christ',\n                narrow: 'BC',\n                abbr: 'BC',\n            },\n        ],\n        dayOfMonthOrdinalParse: /\\d{1,2}(th|st|nd|rd)/,\n        ordinal: function (number) {\n            var b = number % 10,\n                output =\n                    toInt((number % 100) / 10) === 1\n                        ? 'th'\n                        : b === 1\n                          ? 'st'\n                          : b === 2\n                            ? 'nd'\n                            : b === 3\n                              ? 'rd'\n                              : 'th';\n            return number + output;\n        },\n    });\n\n    // Side effect imports\n\n    hooks.lang = deprecate(\n        'moment.lang is deprecated. Use moment.locale instead.',\n        getSetGlobalLocale\n    );\n    hooks.langData = deprecate(\n        'moment.langData is deprecated. Use moment.localeData instead.',\n        getLocale\n    );\n\n    var mathAbs = Math.abs;\n\n    function abs() {\n        var data = this._data;\n\n        this._milliseconds = mathAbs(this._milliseconds);\n        this._days = mathAbs(this._days);\n        this._months = mathAbs(this._months);\n\n        data.milliseconds = mathAbs(data.milliseconds);\n        data.seconds = mathAbs(data.seconds);\n        data.minutes = mathAbs(data.minutes);\n        data.hours = mathAbs(data.hours);\n        data.months = mathAbs(data.months);\n        data.years = mathAbs(data.years);\n\n        return this;\n    }\n\n    function addSubtract$1(duration, input, value, direction) {\n        var other = createDuration(input, value);\n\n        duration._milliseconds += direction * other._milliseconds;\n        duration._days += direction * other._days;\n        duration._months += direction * other._months;\n\n        return duration._bubble();\n    }\n\n    // supports only 2.0-style add(1, 's') or add(duration)\n    function add$1(input, value) {\n        return addSubtract$1(this, input, value, 1);\n    }\n\n    // supports only 2.0-style subtract(1, 's') or subtract(duration)\n    function subtract$1(input, value) {\n        return addSubtract$1(this, input, value, -1);\n    }\n\n    function absCeil(number) {\n        if (number < 0) {\n            return Math.floor(number);\n        } else {\n            return Math.ceil(number);\n        }\n    }\n\n    function bubble() {\n        var milliseconds = this._milliseconds,\n            days = this._days,\n            months = this._months,\n            data = this._data,\n            seconds,\n            minutes,\n            hours,\n            years,\n            monthsFromDays;\n\n        // if we have a mix of positive and negative values, bubble down first\n        // check: https://github.com/moment/moment/issues/2166\n        if (\n            !(\n                (milliseconds >= 0 && days >= 0 && months >= 0) ||\n                (milliseconds <= 0 && days <= 0 && months <= 0)\n            )\n        ) {\n            milliseconds += absCeil(monthsToDays(months) + days) * 864e5;\n            days = 0;\n            months = 0;\n        }\n\n        // The following code bubbles up values, see the tests for\n        // examples of what that means.\n        data.milliseconds = milliseconds % 1000;\n\n        seconds = absFloor(milliseconds / 1000);\n        data.seconds = seconds % 60;\n\n        minutes = absFloor(seconds / 60);\n        data.minutes = minutes % 60;\n\n        hours = absFloor(minutes / 60);\n        data.hours = hours % 24;\n\n        days += absFloor(hours / 24);\n\n        // convert days to months\n        monthsFromDays = absFloor(daysToMonths(days));\n        months += monthsFromDays;\n        days -= absCeil(monthsToDays(monthsFromDays));\n\n        // 12 months -> 1 year\n        years = absFloor(months / 12);\n        months %= 12;\n\n        data.days = days;\n        data.months = months;\n        data.years = years;\n\n        return this;\n    }\n\n    function daysToMonths(days) {\n        // 400 years have 146097 days (taking into account leap year rules)\n        // 400 years have 12 months === 4800\n        return (days * 4800) / 146097;\n    }\n\n    function monthsToDays(months) {\n        // the reverse of daysToMonths\n        return (months * 146097) / 4800;\n    }\n\n    function as(units) {\n        if (!this.isValid()) {\n            return NaN;\n        }\n        var days,\n            months,\n            milliseconds = this._milliseconds;\n\n        units = normalizeUnits(units);\n\n        if (units === 'month' || units === 'quarter' || units === 'year') {\n            days = this._days + milliseconds / 864e5;\n            months = this._months + daysToMonths(days);\n            switch (units) {\n                case 'month':\n                    return months;\n                case 'quarter':\n                    return months / 3;\n                case 'year':\n                    return months / 12;\n            }\n        } else {\n            // handle milliseconds separately because of floating point math errors (issue #1867)\n            days = this._days + Math.round(monthsToDays(this._months));\n            switch (units) {\n                case 'week':\n                    return days / 7 + milliseconds / 6048e5;\n                case 'day':\n                    return days + milliseconds / 864e5;\n                case 'hour':\n                    return days * 24 + milliseconds / 36e5;\n                case 'minute':\n                    return days * 1440 + milliseconds / 6e4;\n                case 'second':\n                    return days * 86400 + milliseconds / 1000;\n                // Math.floor prevents floating point math errors here\n                case 'millisecond':\n                    return Math.floor(days * 864e5) + milliseconds;\n                default:\n                    throw new Error('Unknown unit ' + units);\n            }\n        }\n    }\n\n    function makeAs(alias) {\n        return function () {\n            return this.as(alias);\n        };\n    }\n\n    var asMilliseconds = makeAs('ms'),\n        asSeconds = makeAs('s'),\n        asMinutes = makeAs('m'),\n        asHours = makeAs('h'),\n        asDays = makeAs('d'),\n        asWeeks = makeAs('w'),\n        asMonths = makeAs('M'),\n        asQuarters = makeAs('Q'),\n        asYears = makeAs('y'),\n        valueOf$1 = asMilliseconds;\n\n    function clone$1() {\n        return createDuration(this);\n    }\n\n    function get$2(units) {\n        units = normalizeUnits(units);\n        return this.isValid() ? this[units + 's']() : NaN;\n    }\n\n    function makeGetter(name) {\n        return function () {\n            return this.isValid() ? this._data[name] : NaN;\n        };\n    }\n\n    var milliseconds = makeGetter('milliseconds'),\n        seconds = makeGetter('seconds'),\n        minutes = makeGetter('minutes'),\n        hours = makeGetter('hours'),\n        days = makeGetter('days'),\n        months = makeGetter('months'),\n        years = makeGetter('years');\n\n    function weeks() {\n        return absFloor(this.days() / 7);\n    }\n\n    var round = Math.round,\n        thresholds = {\n            ss: 44, // a few seconds to seconds\n            s: 45, // seconds to minute\n            m: 45, // minutes to hour\n            h: 22, // hours to day\n            d: 26, // days to month/week\n            w: null, // weeks to month\n            M: 11, // months to year\n        };\n\n    // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize\n    function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {\n        return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);\n    }\n\n    function relativeTime$1(posNegDuration, withoutSuffix, thresholds, locale) {\n        var duration = createDuration(posNegDuration).abs(),\n            seconds = round(duration.as('s')),\n            minutes = round(duration.as('m')),\n            hours = round(duration.as('h')),\n            days = round(duration.as('d')),\n            months = round(duration.as('M')),\n            weeks = round(duration.as('w')),\n            years = round(duration.as('y')),\n            a =\n                (seconds <= thresholds.ss && ['s', seconds]) ||\n                (seconds < thresholds.s && ['ss', seconds]) ||\n                (minutes <= 1 && ['m']) ||\n                (minutes < thresholds.m && ['mm', minutes]) ||\n                (hours <= 1 && ['h']) ||\n                (hours < thresholds.h && ['hh', hours]) ||\n                (days <= 1 && ['d']) ||\n                (days < thresholds.d && ['dd', days]);\n\n        if (thresholds.w != null) {\n            a =\n                a ||\n                (weeks <= 1 && ['w']) ||\n                (weeks < thresholds.w && ['ww', weeks]);\n        }\n        a = a ||\n            (months <= 1 && ['M']) ||\n            (months < thresholds.M && ['MM', months]) ||\n            (years <= 1 && ['y']) || ['yy', years];\n\n        a[2] = withoutSuffix;\n        a[3] = +posNegDuration > 0;\n        a[4] = locale;\n        return substituteTimeAgo.apply(null, a);\n    }\n\n    // This function allows you to set the rounding function for relative time strings\n    function getSetRelativeTimeRounding(roundingFunction) {\n        if (roundingFunction === undefined) {\n            return round;\n        }\n        if (typeof roundingFunction === 'function') {\n            round = roundingFunction;\n            return true;\n        }\n        return false;\n    }\n\n    // This function allows you to set a threshold for relative time strings\n    function getSetRelativeTimeThreshold(threshold, limit) {\n        if (thresholds[threshold] === undefined) {\n            return false;\n        }\n        if (limit === undefined) {\n            return thresholds[threshold];\n        }\n        thresholds[threshold] = limit;\n        if (threshold === 's') {\n            thresholds.ss = limit - 1;\n        }\n        return true;\n    }\n\n    function humanize(argWithSuffix, argThresholds) {\n        if (!this.isValid()) {\n            return this.localeData().invalidDate();\n        }\n\n        var withSuffix = false,\n            th = thresholds,\n            locale,\n            output;\n\n        if (typeof argWithSuffix === 'object') {\n            argThresholds = argWithSuffix;\n            argWithSuffix = false;\n        }\n        if (typeof argWithSuffix === 'boolean') {\n            withSuffix = argWithSuffix;\n        }\n        if (typeof argThresholds === 'object') {\n            th = Object.assign({}, thresholds, argThresholds);\n            if (argThresholds.s != null && argThresholds.ss == null) {\n                th.ss = argThresholds.s - 1;\n            }\n        }\n\n        locale = this.localeData();\n        output = relativeTime$1(this, !withSuffix, th, locale);\n\n        if (withSuffix) {\n            output = locale.pastFuture(+this, output);\n        }\n\n        return locale.postformat(output);\n    }\n\n    var abs$1 = Math.abs;\n\n    function sign(x) {\n        return (x > 0) - (x < 0) || +x;\n    }\n\n    function toISOString$1() {\n        // for ISO strings we do not use the normal bubbling rules:\n        //  * milliseconds bubble up until they become hours\n        //  * days do not bubble at all\n        //  * months bubble up until they become years\n        // This is because there is no context-free conversion between hours and days\n        // (think of clock changes)\n        // and also not between days and months (28-31 days per month)\n        if (!this.isValid()) {\n            return this.localeData().invalidDate();\n        }\n\n        var seconds = abs$1(this._milliseconds) / 1000,\n            days = abs$1(this._days),\n            months = abs$1(this._months),\n            minutes,\n            hours,\n            years,\n            s,\n            total = this.asSeconds(),\n            totalSign,\n            ymSign,\n            daysSign,\n            hmsSign;\n\n        if (!total) {\n            // this is the same as C#'s (Noda) and python (isodate)...\n            // but not other JS (goog.date)\n            return 'P0D';\n        }\n\n        // 3600 seconds -> 60 minutes -> 1 hour\n        minutes = absFloor(seconds / 60);\n        hours = absFloor(minutes / 60);\n        seconds %= 60;\n        minutes %= 60;\n\n        // 12 months -> 1 year\n        years = absFloor(months / 12);\n        months %= 12;\n\n        // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js\n        s = seconds ? seconds.toFixed(3).replace(/\\.?0+$/, '') : '';\n\n        totalSign = total < 0 ? '-' : '';\n        ymSign = sign(this._months) !== sign(total) ? '-' : '';\n        daysSign = sign(this._days) !== sign(total) ? '-' : '';\n        hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';\n\n        return (\n            totalSign +\n            'P' +\n            (years ? ymSign + years + 'Y' : '') +\n            (months ? ymSign + months + 'M' : '') +\n            (days ? daysSign + days + 'D' : '') +\n            (hours || minutes || seconds ? 'T' : '') +\n            (hours ? hmsSign + hours + 'H' : '') +\n            (minutes ? hmsSign + minutes + 'M' : '') +\n            (seconds ? hmsSign + s + 'S' : '')\n        );\n    }\n\n    var proto$2 = Duration.prototype;\n\n    proto$2.isValid = isValid$1;\n    proto$2.abs = abs;\n    proto$2.add = add$1;\n    proto$2.subtract = subtract$1;\n    proto$2.as = as;\n    proto$2.asMilliseconds = asMilliseconds;\n    proto$2.asSeconds = asSeconds;\n    proto$2.asMinutes = asMinutes;\n    proto$2.asHours = asHours;\n    proto$2.asDays = asDays;\n    proto$2.asWeeks = asWeeks;\n    proto$2.asMonths = asMonths;\n    proto$2.asQuarters = asQuarters;\n    proto$2.asYears = asYears;\n    proto$2.valueOf = valueOf$1;\n    proto$2._bubble = bubble;\n    proto$2.clone = clone$1;\n    proto$2.get = get$2;\n    proto$2.milliseconds = milliseconds;\n    proto$2.seconds = seconds;\n    proto$2.minutes = minutes;\n    proto$2.hours = hours;\n    proto$2.days = days;\n    proto$2.weeks = weeks;\n    proto$2.months = months;\n    proto$2.years = years;\n    proto$2.humanize = humanize;\n    proto$2.toISOString = toISOString$1;\n    proto$2.toString = toISOString$1;\n    proto$2.toJSON = toISOString$1;\n    proto$2.locale = locale;\n    proto$2.localeData = localeData;\n\n    proto$2.toIsoString = deprecate(\n        'toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)',\n        toISOString$1\n    );\n    proto$2.lang = lang;\n\n    // FORMATTING\n\n    addFormatToken('X', 0, 0, 'unix');\n    addFormatToken('x', 0, 0, 'valueOf');\n\n    // PARSING\n\n    addRegexToken('x', matchSigned);\n    addRegexToken('X', matchTimestamp);\n    addParseToken('X', function (input, array, config) {\n        config._d = new Date(parseFloat(input) * 1000);\n    });\n    addParseToken('x', function (input, array, config) {\n        config._d = new Date(toInt(input));\n    });\n\n    //! moment.js\n\n    hooks.version = '2.30.1';\n\n    setHookCallback(createLocal);\n\n    hooks.fn = proto;\n    hooks.min = min;\n    hooks.max = max;\n    hooks.now = now;\n    hooks.utc = createUTC;\n    hooks.unix = createUnix;\n    hooks.months = listMonths;\n    hooks.isDate = isDate;\n    hooks.locale = getSetGlobalLocale;\n    hooks.invalid = createInvalid;\n    hooks.duration = createDuration;\n    hooks.isMoment = isMoment;\n    hooks.weekdays = listWeekdays;\n    hooks.parseZone = createInZone;\n    hooks.localeData = getLocale;\n    hooks.isDuration = isDuration;\n    hooks.monthsShort = listMonthsShort;\n    hooks.weekdaysMin = listWeekdaysMin;\n    hooks.defineLocale = defineLocale;\n    hooks.updateLocale = updateLocale;\n    hooks.locales = listLocales;\n    hooks.weekdaysShort = listWeekdaysShort;\n    hooks.normalizeUnits = normalizeUnits;\n    hooks.relativeTimeRounding = getSetRelativeTimeRounding;\n    hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;\n    hooks.calendarFormat = getCalendarFormat;\n    hooks.prototype = proto;\n\n    // currently HTML5 input type only supports 24-hour formats\n    hooks.HTML5_FMT = {\n        DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm', // <input type=\"datetime-local\" />\n        DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss', // <input type=\"datetime-local\" step=\"1\" />\n        DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS', // <input type=\"datetime-local\" step=\"0.001\" />\n        DATE: 'YYYY-MM-DD', // <input type=\"date\" />\n        TIME: 'HH:mm', // <input type=\"time\" />\n        TIME_SECONDS: 'HH:mm:ss', // <input type=\"time\" step=\"1\" />\n        TIME_MS: 'HH:mm:ss.SSS', // <input type=\"time\" step=\"0.001\" />\n        WEEK: 'GGGG-[W]WW', // <input type=\"week\" />\n        MONTH: 'YYYY-MM', // <input type=\"month\" />\n    };\n\n    return hooks;\n\n})));\n\n/**\n * @license angular-recaptcha build:2018-07-30\n * https://github.com/vividcortex/angular-recaptcha\n * Copyright (c) 2018 VividCortex\n**/\n\n/*global angular, Recaptcha */\n(function (ng) {\n    'use strict';\n\n    ng.module('vcRecaptcha', []);\n\n}(angular));\n\n/*global angular */\n(function (ng) {\n    'use strict';\n\n    function throwNoKeyException() {\n        throw new Error('You need to set the \"key\" attribute to your public reCaptcha key. If you don\\'t have a key, please get one from https://www.google.com/recaptcha/admin/create');\n    }\n\n    var app = ng.module('vcRecaptcha');\n\n    /**\n     * An angular service to wrap the reCaptcha API\n     */\n    app.provider('vcRecaptchaService', function(){\n        var provider = this;\n        var config = {};\n        provider.onLoadFunctionName = 'vcRecaptchaApiLoaded';\n\n        /**\n         * Sets the reCaptcha configuration values which will be used by default is not specified in a specific directive instance.\n         *\n         * @since 2.5.0\n         * @param defaults  object which overrides the current defaults object.\n         */\n        provider.setDefaults = function(defaults){\n            ng.copy(defaults, config);\n        };\n\n        /**\n         * Sets the reCaptcha key which will be used by default is not specified in a specific directive instance.\n         *\n         * @since 2.5.0\n         * @param siteKey  the reCaptcha public key (refer to the README file if you don't know what this is).\n         */\n        provider.setSiteKey = function(siteKey){\n            config.key = siteKey;\n        };\n\n        /**\n         * Sets the reCaptcha theme which will be used by default is not specified in a specific directive instance.\n         *\n         * @since 2.5.0\n         * @param theme  The reCaptcha theme.\n         */\n        provider.setTheme = function(theme){\n            config.theme = theme;\n        };\n\n        /**\n         * Sets the reCaptcha stoken which will be used by default is not specified in a specific directive instance.\n         *\n         * @since 2.5.0\n         * @param stoken  The reCaptcha stoken.\n         */\n        provider.setStoken = function(stoken){\n            config.stoken = stoken;\n        };\n\n        /**\n         * Sets the reCaptcha size which will be used by default is not specified in a specific directive instance.\n         *\n         * @since 2.5.0\n         * @param size  The reCaptcha size.\n         */\n        provider.setSize = function(size){\n            config.size = size;\n        };\n\n        /**\n         * Sets the reCaptcha type which will be used by default is not specified in a specific directive instance.\n         *\n         * @since 2.5.0\n         * @param type  The reCaptcha type.\n         */\n        provider.setType = function(type){\n            config.type = type;\n        };\n\n        /**\n         * Sets the reCaptcha language which will be used by default is not specified in a specific directive instance.\n         *\n         * @param lang  The reCaptcha language.\n         */\n        provider.setLang = function(lang){\n            config.lang = lang;\n        };\n\n        /**\n         * Sets the reCaptcha badge position which will be used by default if not specified in a specific directive instance.\n         *\n         * @param badge  The reCaptcha badge position.\n         */\n        provider.setBadge = function(badge){\n            config.badge = badge;\n        };\n\n        /**\n         * Sets the reCaptcha configuration values which will be used by default is not specified in a specific directive instance.\n         *\n         * @since 2.5.0\n         * @param onLoadFunctionName  string name which overrides the name of the onload function. Should match what is in the recaptcha script querystring onload value.\n         */\n        provider.setOnLoadFunctionName = function(onLoadFunctionName){\n            provider.onLoadFunctionName = onLoadFunctionName;\n        };\n\n        provider.$get = ['$rootScope','$window', '$q', '$document', '$interval', function ($rootScope, $window, $q, $document, $interval) {\n            var deferred = $q.defer(), promise = deferred.promise, instances = {}, recaptcha;\n\n            $window.vcRecaptchaApiLoadedCallback = $window.vcRecaptchaApiLoadedCallback || [];\n\n            var callback = function () {\n                recaptcha = $window.grecaptcha;\n\n                deferred.resolve(recaptcha);\n            };\n\n            $window.vcRecaptchaApiLoadedCallback.push(callback);\n\n            $window[provider.onLoadFunctionName] = function () {\n                $window.vcRecaptchaApiLoadedCallback.forEach(function(callback) {\n                    callback();\n                });\n            };\n\n\n            function getRecaptcha() {\n                if (!!recaptcha) {\n                    return $q.when(recaptcha);\n                }\n\n                return promise;\n            }\n\n            function validateRecaptchaInstance() {\n                if (!recaptcha) {\n                    throw new Error('reCaptcha has not been loaded yet.');\n                }\n            }\n\n            function isRenderFunctionAvailable() {\n                return ng.isFunction(($window.grecaptcha || {}).render);\n            }\n\n\n            // Check if grecaptcha.render is not defined already.\n            if (isRenderFunctionAvailable()) {\n                callback();\n            } else if ($window.document.querySelector('script[src^=\"https://www.google.com/recaptcha/api.js\"]')) {\n                // wait for script to be loaded.\n                var intervalWait = $interval(function() {\n                    if (isRenderFunctionAvailable()) {\n                        $interval.cancel(intervalWait);\n                        callback();\n                    }\n                }, 25);\n            } else {\n                // Generate link on demand\n                var script = $window.document.createElement('script');\n                script.async = true;\n                script.defer = true;\n                script.src = 'https://www.google.com/recaptcha/api.js?onload='+provider.onLoadFunctionName+'&render=explicit';\n                $document.find('body')[0].appendChild(script);\n            }\n\n            return {\n\n                /**\n                 * Creates a new reCaptcha object\n                 *\n                 * @param elm  the DOM element where to put the captcha\n                 * @param conf the captcha object configuration\n                 * @throws NoKeyException    if no key is provided in the provider config or the directive instance (via attribute)\n                 */\n                create: function (elm, conf) {\n\n                    conf.sitekey = conf.key || config.key;\n                    conf.theme = conf.theme || config.theme;\n                    conf.stoken = conf.stoken || config.stoken;\n                    conf.size = conf.size || config.size;\n                    conf.type = conf.type || config.type;\n                    conf.hl = conf.lang || config.lang;\n                    conf.badge = conf.badge || config.badge;\n\n                    if (!conf.sitekey) {\n                        throwNoKeyException();\n                    }\n                    return getRecaptcha().then(function (recaptcha) {\n                        var widgetId = recaptcha.render(elm, conf);\n                        instances[widgetId] = elm;\n                        return widgetId;\n                    });\n                },\n\n                /**\n                 * Reloads the reCaptcha\n                 */\n                reload: function (widgetId) {\n                    validateRecaptchaInstance();\n\n                    recaptcha.reset(widgetId);\n\n                    // Let everyone know this widget has been reset.\n                    $rootScope.$broadcast('reCaptchaReset', widgetId);\n                },\n\n                /**\n                 * Executes the reCaptcha\n                 */\n                execute: function (widgetId) {\n                    validateRecaptchaInstance();\n\n                    recaptcha.execute(widgetId);\n                },\n\n                /**\n                 * Get/Set reCaptcha language\n                 */\n                useLang: function (widgetId, lang) {\n                    var instance = instances[widgetId];\n\n                    if (instance) {\n                        var iframe = instance.querySelector('iframe');\n                        if (lang) {\n                            // Setter\n                            if (iframe && iframe.src) {\n                                var s = iframe.src;\n                                if (/[?&]hl=/.test(s)) {\n                                    s = s.replace(/([?&]hl=)\\w+/, '$1' + lang);\n                                } else {\n                                    s += ((s.indexOf('?') === -1) ? '?' : '&') + 'hl=' + lang;\n                                }\n\n                                iframe.src = s;\n                            }\n                        } else {\n                            // Getter\n                            if (iframe && iframe.src && /[?&]hl=\\w+/.test(iframe.src)) {\n                                return iframe.src.replace(/.+[?&]hl=(\\w+)([^\\w].+)?/, '$1');\n                            } else {\n                                return null;\n                            }\n                        }\n                    } else {\n                        throw new Error('reCaptcha Widget ID not exists', widgetId);\n                    }\n                },\n\n                /**\n                 * Gets the response from the reCaptcha widget.\n                 *\n                 * @see https://developers.google.com/recaptcha/docs/display#js_api\n                 *\n                 * @returns {String}\n                 */\n                getResponse: function (widgetId) {\n                    validateRecaptchaInstance();\n\n                    return recaptcha.getResponse(widgetId);\n                },\n\n                /**\n                 * Gets reCaptcha instance and configuration\n                 */\n                getInstance: function (widgetId) {\n                    return instances[widgetId];\n                },\n\n                /**\n                 * Destroy reCaptcha instance.\n                 */\n                destroy: function (widgetId) {\n                    delete instances[widgetId];\n                }\n            };\n\n        }];\n    });\n\n}(angular));\n\n/*global angular, Recaptcha */\n(function (ng) {\n    'use strict';\n\n    var app = ng.module('vcRecaptcha');\n\n    app.directive('vcRecaptcha', ['$document', '$timeout', 'vcRecaptchaService', function ($document, $timeout, vcRecaptcha) {\n\n        return {\n            restrict: 'A',\n            require: \"?^^form\",\n            scope: {\n                response: '=?ngModel',\n                key: '=?',\n                stoken: '=?',\n                theme: '=?',\n                size: '=?',\n                type: '=?',\n                lang: '=?',\n                badge: '=?',\n                tabindex: '=?',\n                required: '=?',\n                onCreate: '&',\n                onSuccess: '&',\n                onExpire: '&',\n                onError: '&'\n            },\n            link: function (scope, elm, attrs, ctrl) {\n                scope.widgetId = null;\n\n                if(ctrl && ng.isDefined(attrs.required)){\n                    scope.$watch('required', validate);\n                }\n\n                var removeCreationListener = scope.$watch('key', function (key) {\n                    var callback = function (gRecaptchaResponse) {\n                        // Safe $apply\n                        $timeout(function () {\n                            scope.response = gRecaptchaResponse;\n                            validate();\n\n                            // Notify about the response availability\n                            scope.onSuccess({response: gRecaptchaResponse, widgetId: scope.widgetId});\n                        });\n                    };\n\n                    vcRecaptcha.create(elm[0], {\n\n                        callback: callback,\n                        key: key,\n                        stoken: scope.stoken || attrs.stoken || null,\n                        theme: scope.theme || attrs.theme || null,\n                        type: scope.type || attrs.type || null,\n                        lang: scope.lang || attrs.lang || null,\n                        tabindex: scope.tabindex || attrs.tabindex || null,\n                        size: scope.size || attrs.size || null,\n                        badge: scope.badge || attrs.badge || null,\n                        'expired-callback': expired,\n                        'error-callback': attrs.onError ? error : undefined\n\n                    }).then(function (widgetId) {\n                        // The widget has been created\n                        validate();\n                        scope.widgetId = widgetId;\n                        scope.onCreate({widgetId: widgetId});\n\n                        scope.$on('$destroy', destroy);\n\n                        scope.$on('reCaptchaReset', function(event, resetWidgetId){\n                          if(ng.isUndefined(resetWidgetId) || widgetId === resetWidgetId){\n                            scope.response = \"\";\n                            validate();\n                          }\n                        })\n\n                    });\n\n                    // Remove this listener to avoid creating the widget more than once.\n                    removeCreationListener();\n                });\n\n                function destroy() {\n                  if (ctrl) {\n                    // reset the validity of the form if we were removed\n                    ctrl.$setValidity('recaptcha', null);\n                  }\n\n                  cleanup();\n                }\n\n                function expired(){\n                    // Safe $apply\n                    $timeout(function () {\n                        scope.response = \"\";\n                        validate();\n\n                        // Notify about the response availability\n                        scope.onExpire({ widgetId: scope.widgetId });\n                    });\n                }\n                \n                function error() {\n                    var args = arguments;\n                    $timeout(function () {\n                        scope.response = \"\";\n                        validate();\n\n                        // Notify about the response availability\n                        scope.onError({ widgetId: scope.widgetId, arguments: args });\n                    });\n                }\n\n                function validate(){\n                    if(ctrl){\n                        ctrl.$setValidity('recaptcha', scope.required === false ? null : Boolean(scope.response));\n                    }\n                }\n\n                function cleanup(){\n                  vcRecaptcha.destroy(scope.widgetId);\n\n                  // removes elements reCaptcha added.\n                  ng.element($document[0].querySelectorAll('.pls-container')).parent().remove();\n                }\n            }\n        };\n    }]);\n\n}(angular));\n\n/*!\n * angular-ui-mask\n * https://github.com/angular-ui/ui-mask\n * Version: 1.8.7 - 2016-07-26T15:59:07.992Z\n * License: MIT\n */\n\n\n(function () { \n'use strict';\n/*\n Attaches input mask onto input element\n */\nangular.module('ui.mask', [])\n        .value('uiMaskConfig', {\n            maskDefinitions: {\n                '9': /\\d/,\n                'A': /[a-zA-Z]/,\n                '*': /[a-zA-Z0-9]/\n            },\n            clearOnBlur: true,\n            clearOnBlurPlaceholder: false,\n            escChar: '\\\\',\n            eventsToHandle: ['input', 'keyup', 'click', 'focus'],\n            addDefaultPlaceholder: true,\n            allowInvalidValue: false\n        })\n        .provider('uiMask.Config', function() {\n            var options = {};\n\n            this.maskDefinitions = function(maskDefinitions) {\n                return options.maskDefinitions = maskDefinitions;\n            };\n            this.clearOnBlur = function(clearOnBlur) {\n                return options.clearOnBlur = clearOnBlur;\n            };\n            this.clearOnBlurPlaceholder = function(clearOnBlurPlaceholder) {\n                return options.clearOnBlurPlaceholder = clearOnBlurPlaceholder;\n            };\n            this.eventsToHandle = function(eventsToHandle) {\n                return options.eventsToHandle = eventsToHandle;\n            };\n            this.addDefaultPlaceholder = function(addDefaultPlaceholder) {\n                return options.addDefaultPlaceholder = addDefaultPlaceholder;\n            };\n            this.allowInvalidValue = function(allowInvalidValue) {\n                return options.allowInvalidValue = allowInvalidValue;\n            };\n            this.$get = ['uiMaskConfig', function(uiMaskConfig) {\n                var tempOptions = uiMaskConfig;\n                for(var prop in options) {\n                    if (angular.isObject(options[prop]) && !angular.isArray(options[prop])) {\n                        angular.extend(tempOptions[prop], options[prop]);\n                    } else {\n                        tempOptions[prop] = options[prop];\n                    }\n                }\n\n                return tempOptions;\n            }];\n        })\n        .directive('uiMask', ['uiMask.Config', function(maskConfig) {\n                function isFocused (elem) {\n                  return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);\n                }\n\n                return {\n                    priority: 100,\n                    require: 'ngModel',\n                    restrict: 'A',\n                    compile: function uiMaskCompilingFunction() {\n                        var options = angular.copy(maskConfig);\n\n                        return function uiMaskLinkingFunction(scope, iElement, iAttrs, controller) {\n                            var maskProcessed = false, eventsBound = false,\n                                    maskCaretMap, maskPatterns, maskPlaceholder, maskComponents,\n                                    // Minimum required length of the value to be considered valid\n                                    minRequiredLength,\n                                    value, valueMasked, isValid,\n                                    // Vars for initializing/uninitializing\n                                    originalPlaceholder = iAttrs.placeholder,\n                                    originalMaxlength = iAttrs.maxlength,\n                                    // Vars used exclusively in eventHandler()\n                                    oldValue, oldValueUnmasked, oldCaretPosition, oldSelectionLength,\n                                    // Used for communicating if a backspace operation should be allowed between\n                                    // keydownHandler and eventHandler\n                                    preventBackspace;\n\n                            var originalIsEmpty = controller.$isEmpty;\n                            controller.$isEmpty = function(value) {\n                                if (maskProcessed) {\n                                    return originalIsEmpty(unmaskValue(value || ''));\n                                } else {\n                                    return originalIsEmpty(value);\n                                }\n                            };\n\n                            function initialize(maskAttr) {\n                                if (!angular.isDefined(maskAttr)) {\n                                    return uninitialize();\n                                }\n                                processRawMask(maskAttr);\n                                if (!maskProcessed) {\n                                    return uninitialize();\n                                }\n                                initializeElement();\n                                bindEventListeners();\n                                return true;\n                            }\n\n                            function initPlaceholder(placeholderAttr) {\n                                if ( ! placeholderAttr) {\n                                    return;\n                                }\n\n                                maskPlaceholder = placeholderAttr;\n\n                                // If the mask is processed, then we need to update the value\n                                // but don't set the value if there is nothing entered into the element\n                                // and there is a placeholder attribute on the element because that\n                                // will only set the value as the blank maskPlaceholder\n                                // and override the placeholder on the element\n                                if (maskProcessed && !(iElement.val().length === 0 && angular.isDefined(iAttrs.placeholder))) {\n                                    iElement.val(maskValue(unmaskValue(iElement.val())));\n                                }\n                            }\n\n                            function initPlaceholderChar() {\n                                return initialize(iAttrs.uiMask);\n                            }\n\n                            var modelViewValue = false;\n                            iAttrs.$observe('modelViewValue', function(val) {\n                                if (val === 'true') {\n                                    modelViewValue = true;\n                                }\n                            });\n\n                            iAttrs.$observe('allowInvalidValue', function(val) {\n                                linkOptions.allowInvalidValue = val === ''\n                                    ? true\n                                    : !!val;\n                                formatter(controller.$modelValue);\n                            });\n\n                            function formatter(fromModelValue) {\n                                if (!maskProcessed) {\n                                    return fromModelValue;\n                                }\n                                value = unmaskValue(fromModelValue || '');\n                                isValid = validateValue(value);\n                                controller.$setValidity('mask', isValid);\n\n                                if (!value.length) return undefined;\n                                if (isValid || linkOptions.allowInvalidValue) {\n                                    return maskValue(value);\n                                } else {\n                                    return undefined;\n                                }\n                            }\n\n                            function parser(fromViewValue) {\n                                if (!maskProcessed) {\n                                    return fromViewValue;\n                                }\n                                value = unmaskValue(fromViewValue || '');\n                                isValid = validateValue(value);\n                                // We have to set viewValue manually as the reformatting of the input\n                                // value performed by eventHandler() doesn't happen until after\n                                // this parser is called, which causes what the user sees in the input\n                                // to be out-of-sync with what the controller's $viewValue is set to.\n                                controller.$viewValue = value.length ? maskValue(value) : '';\n                                controller.$setValidity('mask', isValid);\n\n                                if (isValid || linkOptions.allowInvalidValue) {\n                                    return modelViewValue ? controller.$viewValue : value;\n                                }\n                            }\n\n                            var linkOptions = {};\n\n                            if (iAttrs.uiOptions) {\n                                linkOptions = scope.$eval('[' + iAttrs.uiOptions + ']');\n                                if (angular.isObject(linkOptions[0])) {\n                                    // we can't use angular.copy nor angular.extend, they lack the power to do a deep merge\n                                    linkOptions = (function(original, current) {\n                                        for (var i in original) {\n                                            if (Object.prototype.hasOwnProperty.call(original, i)) {\n                                                if (current[i] === undefined) {\n                                                    current[i] = angular.copy(original[i]);\n                                                } else {\n                                                    if (angular.isObject(current[i]) && !angular.isArray(current[i])) {\n                                                        current[i] = angular.extend({}, original[i], current[i]);\n                                                    }\n                                                }\n                                            }\n                                        }\n                                        return current;\n                                    })(options, linkOptions[0]);\n                                } else {\n                                    linkOptions = options;  //gotta be a better way to do this..\n                                }\n                            } else {\n                                linkOptions = options;\n                            }\n\n                            iAttrs.$observe('uiMask', initialize);\n                            if (angular.isDefined(iAttrs.uiMaskPlaceholder)) {\n                                iAttrs.$observe('uiMaskPlaceholder', initPlaceholder);\n                            }\n                            else {\n                                iAttrs.$observe('placeholder', initPlaceholder);\n                            }\n                            if (angular.isDefined(iAttrs.uiMaskPlaceholderChar)) {\n                                iAttrs.$observe('uiMaskPlaceholderChar', initPlaceholderChar);\n                            }\n\n                            controller.$formatters.unshift(formatter);\n                            controller.$parsers.unshift(parser);\n\n                            function uninitialize() {\n                                maskProcessed = false;\n                                unbindEventListeners();\n\n                                if (angular.isDefined(originalPlaceholder)) {\n                                    iElement.attr('placeholder', originalPlaceholder);\n                                } else {\n                                    iElement.removeAttr('placeholder');\n                                }\n\n                                if (angular.isDefined(originalMaxlength)) {\n                                    iElement.attr('maxlength', originalMaxlength);\n                                } else {\n                                    iElement.removeAttr('maxlength');\n                                }\n\n                                iElement.val(controller.$modelValue);\n                                controller.$viewValue = controller.$modelValue;\n                                return false;\n                            }\n\n                            function initializeElement() {\n                                value = oldValueUnmasked = unmaskValue(controller.$modelValue || '');\n                                valueMasked = oldValue = maskValue(value);\n                                isValid = validateValue(value);\n                                if (iAttrs.maxlength) { // Double maxlength to allow pasting new val at end of mask\n                                    iElement.attr('maxlength', maskCaretMap[maskCaretMap.length - 1] * 2);\n                                }\n                                if ( ! originalPlaceholder && linkOptions.addDefaultPlaceholder) {\n                                    iElement.attr('placeholder', maskPlaceholder);\n                                }\n                                var viewValue = controller.$modelValue;\n                                var idx = controller.$formatters.length;\n                                while(idx--) {\n                                    viewValue = controller.$formatters[idx](viewValue);\n                                }\n                                controller.$viewValue = viewValue || '';\n                                controller.$render();\n                                // Not using $setViewValue so we don't clobber the model value and dirty the form\n                                // without any kind of user interaction.\n                            }\n\n                            function bindEventListeners() {\n                                if (eventsBound) {\n                                    return;\n                                }\n                                iElement.bind('blur', blurHandler);\n                                iElement.bind('mousedown mouseup', mouseDownUpHandler);\n                                iElement.bind('keydown', keydownHandler);\n                                iElement.bind(linkOptions.eventsToHandle.join(' '), eventHandler);\n                                eventsBound = true;\n                            }\n\n                            function unbindEventListeners() {\n                                if (!eventsBound) {\n                                    return;\n                                }\n                                iElement.unbind('blur', blurHandler);\n                                iElement.unbind('mousedown', mouseDownUpHandler);\n                                iElement.unbind('mouseup', mouseDownUpHandler);\n                                iElement.unbind('keydown', keydownHandler);\n                                iElement.unbind('input', eventHandler);\n                                iElement.unbind('keyup', eventHandler);\n                                iElement.unbind('click', eventHandler);\n                                iElement.unbind('focus', eventHandler);\n                                eventsBound = false;\n                            }\n\n                            function validateValue(value) {\n                                // Zero-length value validity is ngRequired's determination\n                                return value.length ? value.length >= minRequiredLength : true;\n                            }\n\n                            function unmaskValue(value) {\n                                var valueUnmasked = '',\n                                    input = iElement[0],\n                                    maskPatternsCopy = maskPatterns.slice(),\n                                    selectionStart = oldCaretPosition,\n                                    selectionEnd = selectionStart + getSelectionLength(input),\n                                    valueOffset, valueDelta, tempValue = '';\n                                // Preprocess by stripping mask components from value\n                                value = value.toString();\n                                valueOffset = 0;\n                                valueDelta = value.length - maskPlaceholder.length;\n                                angular.forEach(maskComponents, function(component) {\n                                    var position = component.position;\n                                    //Only try and replace the component if the component position is not within the selected range\n                                    //If component was in selected range then it was removed with the user input so no need to try and remove that component\n                                    if (!(position >= selectionStart && position < selectionEnd)) {\n                                        if (position >= selectionStart) {\n                                            position += valueDelta;\n                                        }\n                                        if (value.substring(position, position + component.value.length) === component.value) {\n                                            tempValue += value.slice(valueOffset, position);// + value.slice(position + component.value.length);\n                                            valueOffset = position + component.value.length;\n                                        }\n                                    }\n                                });\n                                value = tempValue + value.slice(valueOffset);\n                                angular.forEach(value.split(''), function(chr) {\n                                    if (maskPatternsCopy.length && maskPatternsCopy[0].test(chr)) {\n                                        valueUnmasked += chr;\n                                        maskPatternsCopy.shift();\n                                    }\n                                });\n\n                                return valueUnmasked;\n                            }\n\n                            function maskValue(unmaskedValue) {\n                                var valueMasked = '',\n                                        maskCaretMapCopy = maskCaretMap.slice();\n\n                                angular.forEach(maskPlaceholder.split(''), function(chr, i) {\n                                    if (unmaskedValue.length && i === maskCaretMapCopy[0]) {\n                                        valueMasked += unmaskedValue.charAt(0) || '_';\n                                        unmaskedValue = unmaskedValue.substr(1);\n                                        maskCaretMapCopy.shift();\n                                    }\n                                    else {\n                                        valueMasked += chr;\n                                    }\n                                });\n                                return valueMasked;\n                            }\n\n                            function getPlaceholderChar(i) {\n                                var placeholder = angular.isDefined(iAttrs.uiMaskPlaceholder) ? iAttrs.uiMaskPlaceholder : iAttrs.placeholder,\n                                    defaultPlaceholderChar;\n\n                                if (angular.isDefined(placeholder) && placeholder[i]) {\n                                    return placeholder[i];\n                                } else {\n                                    defaultPlaceholderChar = angular.isDefined(iAttrs.uiMaskPlaceholderChar) && iAttrs.uiMaskPlaceholderChar ? iAttrs.uiMaskPlaceholderChar : '_';\n                                    return (defaultPlaceholderChar.toLowerCase() === 'space') ? ' ' : defaultPlaceholderChar[0];\n                                }\n                            }\n\n                            // Generate array of mask components that will be stripped from a masked value\n                            // before processing to prevent mask components from being added to the unmasked value.\n                            // E.g., a mask pattern of '+7 9999' won't have the 7 bleed into the unmasked value.\n                            function getMaskComponents() {\n                                var maskPlaceholderChars = maskPlaceholder.split(''),\n                                        maskPlaceholderCopy, components;\n\n                                //maskCaretMap can have bad values if the input has the ui-mask attribute implemented as an obversable property, e.g. the demo page\n                                if (maskCaretMap && !isNaN(maskCaretMap[0])) {\n                                    //Instead of trying to manipulate the RegEx based on the placeholder characters\n                                    //we can simply replace the placeholder characters based on the already built\n                                    //maskCaretMap to underscores and leave the original working RegEx to get the proper\n                                    //mask components\n                                    angular.forEach(maskCaretMap, function(value) {\n                                        maskPlaceholderChars[value] = '_';\n                                    });\n                                }\n                                maskPlaceholderCopy = maskPlaceholderChars.join('');\n                                components = maskPlaceholderCopy.replace(/[_]+/g, '_').split('_');\n                                components = components.filter(function(s) {\n                                    return s !== '';\n                                });\n\n                                // need a string search offset in cases where the mask contains multiple identical components\n                                // E.g., a mask of 99.99.99-999.99\n                                var offset = 0;\n                                return components.map(function(c) {\n                                    var componentPosition = maskPlaceholderCopy.indexOf(c, offset);\n                                    offset = componentPosition + 1;\n                                    return {\n                                        value: c,\n                                        position: componentPosition\n                                    };\n                                });\n                            }\n\n                            function processRawMask(mask) {\n                                var characterCount = 0;\n\n                                maskCaretMap = [];\n                                maskPatterns = [];\n                                maskPlaceholder = '';\n\n                                if (angular.isString(mask)) {\n                                    minRequiredLength = 0;\n\n                                    var isOptional = false,\n                                            numberOfOptionalCharacters = 0,\n                                            splitMask = mask.split('');\n\n                                    var inEscape = false;\n                                    angular.forEach(splitMask, function(chr, i) {\n                                        if (inEscape) {\n                                            inEscape = false;\n                                            maskPlaceholder += chr;\n                                            characterCount++;\n                                        }\n                                        else if (linkOptions.escChar === chr) {\n                                            inEscape = true;\n                                        }\n                                        else if (linkOptions.maskDefinitions[chr]) {\n                                            maskCaretMap.push(characterCount);\n\n                                            maskPlaceholder += getPlaceholderChar(i - numberOfOptionalCharacters);\n                                            maskPatterns.push(linkOptions.maskDefinitions[chr]);\n\n                                            characterCount++;\n                                            if (!isOptional) {\n                                                minRequiredLength++;\n                                            }\n\n                                            isOptional = false;\n                                        }\n                                        else if (chr === '?') {\n                                            isOptional = true;\n                                            numberOfOptionalCharacters++;\n                                        }\n                                        else {\n                                            maskPlaceholder += chr;\n                                            characterCount++;\n                                        }\n                                    });\n                                }\n                                // Caret position immediately following last position is valid.\n                                maskCaretMap.push(maskCaretMap.slice().pop() + 1);\n\n                                maskComponents = getMaskComponents();\n                                maskProcessed = maskCaretMap.length > 1 ? true : false;\n                            }\n\n                            var prevValue = iElement.val();\n                            function blurHandler() {\n                                if (linkOptions.clearOnBlur || ((linkOptions.clearOnBlurPlaceholder) && (value.length === 0) && iAttrs.placeholder)) {\n                                    oldCaretPosition = 0;\n                                    oldSelectionLength = 0;\n                                    if (!isValid || value.length === 0) {\n                                        valueMasked = '';\n                                        iElement.val('');\n                                        scope.$apply(function() {\n                                            //only $setViewValue when not $pristine to avoid changing $pristine state.\n                                            if (!controller.$pristine) {\n                                                controller.$setViewValue('');\n                                            }\n                                        });\n                                    }\n                                }\n                                //Check for different value and trigger change.\n                                //Check for different value and trigger change.\n                                if (value !== prevValue) {\n                                    // #157 Fix the bug from the trigger when backspacing exactly on the first letter (emptying the field)\n                                    // and then blurring out.\n                                    // Angular uses html element and calls setViewValue(element.value.trim()), setting it to the trimmed mask\n                                    // when it should be empty\n                                    var currentVal = iElement.val();\n                                    var isTemporarilyEmpty = value === '' && currentVal && angular.isDefined(iAttrs.uiMaskPlaceholderChar) && iAttrs.uiMaskPlaceholderChar === 'space';\n                                    if(isTemporarilyEmpty) {\n                                        iElement.val('');\n                                    }\n                                    triggerChangeEvent(iElement[0]);\n                                    if(isTemporarilyEmpty) {\n                                        iElement.val(currentVal);\n                                    }\n                                }\n                                prevValue = value;\n                            }\n\n                            function triggerChangeEvent(element) {\n                                var change;\n                                if (angular.isFunction(window.Event) && !element.fireEvent) {\n                                    // modern browsers and Edge\n                                    try {\n                                        change = new Event('change', {\n                                            view: window,\n                                            bubbles: true,\n                                            cancelable: false\n                                        });\n                                    } catch (ex) {\n                                        //this is for certain mobile browsers that have the Event object\n                                        //but don't support the Event constructor #168\n                                        change = document.createEvent('HTMLEvents');\n                                        change.initEvent('change', false, true);\n                                    } finally {\n                                        element.dispatchEvent(change);\n                                    }\n                                } else if ('createEvent' in document) {\n                                    // older browsers\n                                    change = document.createEvent('HTMLEvents');\n                                    change.initEvent('change', false, true);\n                                    element.dispatchEvent(change);\n                                }\n                                else if (element.fireEvent) {\n                                    // IE <= 11\n                                    element.fireEvent('onchange');\n                                }\n                            }\n\n                            function mouseDownUpHandler(e) {\n                                if (e.type === 'mousedown') {\n                                    iElement.bind('mouseout', mouseoutHandler);\n                                } else {\n                                    iElement.unbind('mouseout', mouseoutHandler);\n                                }\n                            }\n\n                            iElement.bind('mousedown mouseup', mouseDownUpHandler);\n\n                            function mouseoutHandler() {\n                                /*jshint validthis: true */\n                                oldSelectionLength = getSelectionLength(this);\n                                iElement.unbind('mouseout', mouseoutHandler);\n                            }\n\n                            function keydownHandler(e) {\n                                /*jshint validthis: true */\n                                var isKeyBackspace = e.which === 8,\n                                caretPos = getCaretPosition(this) - 1 || 0, //value in keydown is pre change so bump caret position back to simulate post change\n                                isCtrlZ = e.which === 90 && e.ctrlKey; //ctrl+z pressed\n\n                                if (isKeyBackspace) {\n                                    while(caretPos >= 0) {\n                                        if (isValidCaretPosition(caretPos)) {\n                                            //re-adjust the caret position.\n                                            //Increment to account for the initial decrement to simulate post change caret position\n                                            setCaretPosition(this, caretPos + 1);\n                                            break;\n                                        }\n                                        caretPos--;\n                                    }\n                                    preventBackspace = caretPos === -1;\n                                }\n\n                                if (isCtrlZ) {\n                                    // prevent IE bug - value should be returned to initial state\n                                    iElement.val('');\n                                    e.preventDefault();\n                                }\n                            }\n\n                            function eventHandler(e) {\n                                /*jshint validthis: true */\n                                e = e || {};\n                                // Allows more efficient minification\n                                var eventWhich = e.which,\n                                        eventType = e.type;\n\n                                // Prevent shift and ctrl from mucking with old values\n                                if (eventWhich === 16 || eventWhich === 91) {\n                                    return;\n                                }\n\n                                var val = iElement.val(),\n                                        valOld = oldValue,\n                                        valMasked,\n                                        valAltered = false,\n                                        valUnmasked = unmaskValue(val),\n                                        valUnmaskedOld = oldValueUnmasked,\n                                        caretPos = getCaretPosition(this) || 0,\n                                        caretPosOld = oldCaretPosition || 0,\n                                        caretPosDelta = caretPos - caretPosOld,\n                                        caretPosMin = maskCaretMap[0],\n                                        caretPosMax = maskCaretMap[valUnmasked.length] || maskCaretMap.slice().shift(),\n                                        selectionLenOld = oldSelectionLength || 0,\n                                        isSelected = getSelectionLength(this) > 0,\n                                        wasSelected = selectionLenOld > 0,\n                                        // Case: Typing a character to overwrite a selection\n                                        isAddition = (val.length > valOld.length) || (selectionLenOld && val.length > valOld.length - selectionLenOld),\n                                        // Case: Delete and backspace behave identically on a selection\n                                        isDeletion = (val.length < valOld.length) || (selectionLenOld && val.length === valOld.length - selectionLenOld),\n                                        isSelection = (eventWhich >= 37 && eventWhich <= 40) && e.shiftKey, // Arrow key codes\n\n                                        isKeyLeftArrow = eventWhich === 37,\n                                        // Necessary due to \"input\" event not providing a key code\n                                        isKeyBackspace = eventWhich === 8 || (eventType !== 'keyup' && isDeletion && (caretPosDelta === -1)),\n                                        isKeyDelete = eventWhich === 46 || (eventType !== 'keyup' && isDeletion && (caretPosDelta === 0) && !wasSelected),\n                                        // Handles cases where caret is moved and placed in front of invalid maskCaretMap position. Logic below\n                                        // ensures that, on click or leftward caret placement, caret is moved leftward until directly right of\n                                        // non-mask character. Also applied to click since users are (arguably) more likely to backspace\n                                        // a character when clicking within a filled input.\n                                        caretBumpBack = (isKeyLeftArrow || isKeyBackspace || eventType === 'click') && caretPos > caretPosMin;\n\n                                oldSelectionLength = getSelectionLength(this);\n\n                                // These events don't require any action\n                                if (isSelection || (isSelected && (eventType === 'click' || eventType === 'keyup' || eventType === 'focus'))) {\n                                    return;\n                                }\n\n                                if (isKeyBackspace && preventBackspace) {\n                                    iElement.val(maskPlaceholder);\n                                    // This shouldn't be needed but for some reason after aggressive backspacing the controller $viewValue is incorrect.\n                                    // This keeps the $viewValue updated and correct.\n                                    scope.$apply(function () {\n                                        controller.$setViewValue(''); // $setViewValue should be run in angular context, otherwise the changes will be invisible to angular and user code.\n                                    });\n                                    setCaretPosition(this, caretPosOld);\n                                    return;\n                                }\n\n                                // Value Handling\n                                // ==============\n\n                                // User attempted to delete but raw value was unaffected--correct this grievous offense\n                                if ((eventType === 'input') && isDeletion && !wasSelected && valUnmasked === valUnmaskedOld) {\n                                    while (isKeyBackspace && caretPos > caretPosMin && !isValidCaretPosition(caretPos)) {\n                                        caretPos--;\n                                    }\n                                    while (isKeyDelete && caretPos < caretPosMax && maskCaretMap.indexOf(caretPos) === -1) {\n                                        caretPos++;\n                                    }\n                                    var charIndex = maskCaretMap.indexOf(caretPos);\n                                    // Strip out non-mask character that user would have deleted if mask hadn't been in the way.\n                                    valUnmasked = valUnmasked.substring(0, charIndex) + valUnmasked.substring(charIndex + 1);\n\n                                    // If value has not changed, don't want to call $setViewValue, may be caused by IE raising input event due to placeholder\n                                    if (valUnmasked !== valUnmaskedOld)\n                                        valAltered = true;\n                                }\n\n                                // Update values\n                                valMasked = maskValue(valUnmasked);\n\n                                oldValue = valMasked;\n                                oldValueUnmasked = valUnmasked;\n\n                                //additional check to fix the problem where the viewValue is out of sync with the value of the element.\n                                //better fix for commit 2a83b5fb8312e71d220a497545f999fc82503bd9 (I think)\n                                if (!valAltered && val.length > valMasked.length)\n                                    valAltered = true;\n\n                                iElement.val(valMasked);\n\n                                //we need this check.  What could happen if you don't have it is that you'll set the model value without the user\n                                //actually doing anything.  Meaning, things like pristine and touched will be set.\n                                if (valAltered) {\n                                    scope.$apply(function () {\n                                        controller.$setViewValue(valMasked); // $setViewValue should be run in angular context, otherwise the changes will be invisible to angular and user code.\n                                    });\n                                }\n\n                                // Caret Repositioning\n                                // ===================\n\n                                // Ensure that typing always places caret ahead of typed character in cases where the first char of\n                                // the input is a mask char and the caret is placed at the 0 position.\n                                if (isAddition && (caretPos <= caretPosMin)) {\n                                    caretPos = caretPosMin + 1;\n                                }\n\n                                if (caretBumpBack) {\n                                    caretPos--;\n                                }\n\n                                // Make sure caret is within min and max position limits\n                                caretPos = caretPos > caretPosMax ? caretPosMax : caretPos < caretPosMin ? caretPosMin : caretPos;\n\n                                // Scoot the caret back or forth until it's in a non-mask position and within min/max position limits\n                                while (!isValidCaretPosition(caretPos) && caretPos > caretPosMin && caretPos < caretPosMax) {\n                                    caretPos += caretBumpBack ? -1 : 1;\n                                }\n\n                                if ((caretBumpBack && caretPos < caretPosMax) || (isAddition && !isValidCaretPosition(caretPosOld))) {\n                                    caretPos++;\n                                }\n                                oldCaretPosition = caretPos;\n                                setCaretPosition(this, caretPos);\n                            }\n\n                            function isValidCaretPosition(pos) {\n                                return maskCaretMap.indexOf(pos) > -1;\n                            }\n\n                            function getCaretPosition(input) {\n                                if (!input)\n                                    return 0;\n                                if (input.selectionStart !== undefined) {\n                                    return input.selectionStart;\n                                } else if (document.selection) {\n                                    if (isFocused(iElement[0])) {\n                                        // Curse you IE\n                                        input.focus();\n                                        var selection = document.selection.createRange();\n                                        selection.moveStart('character', input.value ? -input.value.length : 0);\n                                        return selection.text.length;\n                                    }\n                                }\n                                return 0;\n                            }\n\n                            function setCaretPosition(input, pos) {\n                                if (!input)\n                                    return 0;\n                                if (input.offsetWidth === 0 || input.offsetHeight === 0) {\n                                    return; // Input's hidden\n                                }\n                                if (input.setSelectionRange) {\n                                    if (isFocused(iElement[0])) {\n                                        input.focus();\n                                        input.setSelectionRange(pos, pos);\n                                    }\n                                }\n                                else if (input.createTextRange) {\n                                    // Curse you IE\n                                    var range = input.createTextRange();\n                                    range.collapse(true);\n                                    range.moveEnd('character', pos);\n                                    range.moveStart('character', pos);\n                                    range.select();\n                                }\n                            }\n\n                            function getSelectionLength(input) {\n                                if (!input)\n                                    return 0;\n                                if (input.selectionStart !== undefined) {\n                                    return (input.selectionEnd - input.selectionStart);\n                                }\n                                if (window.getSelection) {\n                                    return (window.getSelection().toString().length);\n                                }\n                                if (document.selection) {\n                                    return (document.selection.createRange().text.length);\n                                }\n                                return 0;\n                            }\n\n                            // https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/indexOf\n                            if (!Array.prototype.indexOf) {\n                                Array.prototype.indexOf = function(searchElement /*, fromIndex */) {\n                                    if (this === null) {\n                                        throw new TypeError();\n                                    }\n                                    var t = Object(this);\n                                    var len = t.length >>> 0;\n                                    if (len === 0) {\n                                        return -1;\n                                    }\n                                    var n = 0;\n                                    if (arguments.length > 1) {\n                                        n = Number(arguments[1]);\n                                        if (n !== n) { // shortcut for verifying if it's NaN\n                                            n = 0;\n                                        } else if (n !== 0 && n !== Infinity && n !== -Infinity) {\n                                            n = (n > 0 || -1) * Math.floor(Math.abs(n));\n                                        }\n                                    }\n                                    if (n >= len) {\n                                        return -1;\n                                    }\n                                    var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);\n                                    for (; k < len; k++) {\n                                        if (k in t && t[k] === searchElement) {\n                                            return k;\n                                        }\n                                    }\n                                    return -1;\n                                };\n                            }\n\n                        };\n                    }\n                };\n            }\n        ]);\n\n}());\n/*! angularjs-slider - v6.7.0 - \n (c) Rafal Zajac <rzajac@gmail.com>, Valentin Hervieu <valentin@hervi.eu>, Jussi Saarivirta <jusasi@gmail.com>, Angelin Sirbu <angelin.sirbu@gmail.com> - \n https://github.com/angular-slider/angularjs-slider - \n 2019-02-23 */\n/*jslint unparam: true */\n/*global angular: false, console: false, define, module */\n;(function(root, factory) {\n  'use strict'\n  /* istanbul ignore next */\n  if (typeof define === 'function' && define.amd) {\n    // AMD. Register as an anonymous module.\n    define(['angular'], factory)\n  } else if (typeof module === 'object' && module.exports) {\n    // Node. Does not work with strict CommonJS, but\n    // only CommonJS-like environments that support module.exports,\n    // like Node.\n    // to support bundler like browserify\n    var angularObj = angular || require('angular')\n    if ((!angularObj || !angularObj.module) && typeof angular != 'undefined') {\n      angularObj = angular\n    }\n    module.exports = factory(angularObj)\n  } else {\n    // Browser globals (root is window)\n    factory(root.angular)\n  }\n})(this, function(angular) {\n  'use strict'\n  var module = angular\n    .module('rzModule', [])\n    .factory('RzSliderOptions', function() {\n      var defaultOptions = {\n        floor: 0,\n        ceil: null, //defaults to rz-slider-model\n        step: 1,\n        precision: 0,\n        minRange: null,\n        maxRange: null,\n        restrictedRange: null,\n        pushRange: false,\n        minLimit: null,\n        maxLimit: null,\n        id: null,\n        translate: null,\n        getLegend: null,\n        stepsArray: null,\n        bindIndexForStepsArray: false,\n        draggableRange: false,\n        draggableRangeOnly: false,\n        showSelectionBar: false,\n        showSelectionBarEnd: false,\n        showSelectionBarFromValue: null,\n        showOuterSelectionBars: false,\n        hidePointerLabels: false,\n        hideLimitLabels: false,\n        autoHideLimitLabels: true,\n        readOnly: false,\n        disabled: false,\n        interval: 350,\n        showTicks: false,\n        showTicksValues: false,\n        ticksArray: null,\n        ticksTooltip: null,\n        ticksValuesTooltip: null,\n        vertical: false,\n        getSelectionBarColor: null,\n        getTickColor: null,\n        getPointerColor: null,\n        keyboardSupport: true,\n        scale: 1,\n        enforceStep: true,\n        enforceRange: false,\n        noSwitching: false,\n        onlyBindHandles: false,\n        onStart: null,\n        onChange: null,\n        onEnd: null,\n        rightToLeft: false,\n        reversedControls: false,\n        boundPointerLabels: true,\n        mergeRangeLabelsIfSame: false,\n        labelOverlapSeparator: ' - ',\n        customTemplateScope: null,\n        logScale: false,\n        customValueToPosition: null,\n        customPositionToValue: null,\n        selectionBarGradient: null,\n        ariaLabel: null,\n        ariaLabelledBy: null,\n        ariaLabelHigh: null,\n        ariaLabelledByHigh: null,\n      }\n      var globalOptions = {}\n\n      var factory = {}\n      /**\n       * `options({})` allows global configuration of all sliders in the\n       * application.\n       *\n       *   var app = angular.module( 'App', ['rzModule'], function( RzSliderOptions ) {\n       *     // show ticks for all sliders\n       *     RzSliderOptions.options( { showTicks: true } );\n       *   });\n       */\n      factory.options = function(value) {\n        angular.extend(globalOptions, value)\n      }\n\n      factory.getOptions = function(options) {\n        return angular.extend({}, defaultOptions, globalOptions, options)\n      }\n\n      return factory\n    })\n    .factory('rzThrottle', ['$timeout', function($timeout) {\n      /**\n       * rzThrottle\n       *\n       * Taken from underscore project\n       *\n       * @param {Function} func\n       * @param {number} wait\n       * @param {ThrottleOptions} options\n       * @returns {Function}\n       */\n      return function(func, wait, options) {\n        'use strict'\n        /* istanbul ignore next */\n        var getTime =\n          Date.now ||\n          function() {\n            return new Date().getTime()\n          }\n        var context, args, result\n        var timeout = null\n        var previous = 0\n        options = options || {}\n        var later = function() {\n          previous = getTime()\n          timeout = null\n          result = func.apply(context, args)\n          context = args = null\n        }\n        return function() {\n          var now = getTime()\n          var remaining = wait - (now - previous)\n          context = this\n          args = arguments\n          if (remaining <= 0) {\n            $timeout.cancel(timeout)\n            timeout = null\n            previous = now\n            result = func.apply(context, args)\n            context = args = null\n          } else if (!timeout && options.trailing !== false) {\n            timeout = $timeout(later, remaining)\n          }\n          return result\n        }\n      }\n    }])\n    .factory('RzSlider', ['$timeout', '$document', '$window', '$compile', 'RzSliderOptions', 'rzThrottle', function(\n      $timeout,\n      $document,\n      $window,\n      $compile,\n      RzSliderOptions,\n      rzThrottle\n    ) {\n      'use strict'\n\n      /**\n       * Slider\n       *\n       * @param {ngScope} scope            The AngularJS scope\n       * @param {Element} sliderElem The slider directive element wrapped in jqLite\n       * @constructor\n       */\n      var Slider = function(scope, sliderElem) {\n        /**\n         * The slider's scope\n         *\n         * @type {ngScope}\n         */\n        this.scope = scope\n\n        /**\n         * The slider inner low value (linked to rzSliderModel)\n         * @type {number}\n         */\n        this.lowValue = 0\n\n        /**\n         * The slider inner high value (linked to rzSliderHigh)\n         * @type {number}\n         */\n        this.highValue = 0\n\n        /**\n         * Slider element wrapped in jqLite\n         *\n         * @type {jqLite}\n         */\n        this.sliderElem = sliderElem\n\n        /**\n         * Slider type\n         *\n         * @type {boolean} Set to true for range slider\n         */\n        this.range =\n          this.scope.rzSliderModel !== undefined &&\n          this.scope.rzSliderHigh !== undefined\n\n        /**\n         * Values recorded when first dragging the bar\n         *\n         * @type {Object}\n         */\n        this.dragging = {\n          active: false,\n          value: 0,\n          difference: 0,\n          position: 0,\n          lowLimit: 0,\n          highLimit: 0,\n        }\n\n        /**\n         * property that handle position (defaults to left for horizontal)\n         * @type {string}\n         */\n        this.positionProperty = 'left'\n\n        /**\n         * property that handle dimension (defaults to width for horizontal)\n         * @type {string}\n         */\n        this.dimensionProperty = 'width'\n\n        /**\n         * Half of the width or height of the slider handles\n         *\n         * @type {number}\n         */\n        this.handleHalfDim = 0\n\n        /**\n         * Maximum position the slider handle can have\n         *\n         * @type {number}\n         */\n        this.maxPos = 0\n\n        /**\n         * Precision\n         *\n         * @type {number}\n         */\n        this.precision = 0\n\n        /**\n         * Step\n         *\n         * @type {number}\n         */\n        this.step = 1\n\n        /**\n         * The name of the handle we are currently tracking\n         *\n         * @type {string}\n         */\n        this.tracking = ''\n\n        /**\n         * Minimum value (floor) of the model\n         *\n         * @type {number}\n         */\n        this.minValue = 0\n\n        /**\n         * Maximum value (ceiling) of the model\n         *\n         * @type {number}\n         */\n        this.maxValue = 0\n\n        /**\n         * The delta between min and max value\n         *\n         * @type {number}\n         */\n        this.valueRange = 0\n\n        /**\n         * If showTicks/showTicksValues options are number.\n         * In this case, ticks values should be displayed below the slider.\n         * @type {boolean}\n         */\n        this.intermediateTicks = false\n\n        /**\n         * Set to true if init method already executed\n         *\n         * @type {boolean}\n         */\n        this.initHasRun = false\n\n        /**\n         * Used to call onStart on the first keydown event\n         *\n         * @type {boolean}\n         */\n        this.firstKeyDown = false\n\n        /**\n         * Internal flag to prevent watchers to be called when the sliders value are modified internally.\n         * @type {boolean}\n         */\n        this.internalChange = false\n\n        /**\n         * Internal flag to keep track of the visibility of combo label\n         * @type {boolean}\n         */\n        this.cmbLabelShown = false\n\n        /**\n         * Internal variable to keep track of the focus element\n         */\n        this.currentFocusElement = null\n\n        // Slider DOM elements wrapped in jqLite\n        this.fullBar = null // The whole slider bar\n        this.selBar = null // Highlight between two handles\n        this.minH = null // Left slider handle\n        this.maxH = null // Right slider handle\n        this.flrLab = null // Floor label\n        this.ceilLab = null // Ceiling label\n        this.minLab = null // Label above the low value\n        this.maxLab = null // Label above the high value\n        this.cmbLab = null // Combined label\n        this.ticks = null // The ticks\n\n        // Initialize slider\n        this.init()\n      }\n\n      // Add instance methods\n      Slider.prototype = {\n        /**\n         * Initialize slider\n         *\n         * @returns {undefined}\n         */\n        init: function() {\n          var thrLow,\n            thrHigh,\n            self = this\n\n          var calcDimFn = function() {\n            self.calcViewDimensions()\n          }\n\n          this.applyOptions()\n          this.syncLowValue()\n          if (this.range) this.syncHighValue()\n          this.initElemHandles()\n          this.manageElementsStyle()\n          this.setDisabledState()\n          this.calcViewDimensions()\n          this.setMinAndMax()\n          this.updateRestrictionBar()\n          this.addAccessibility()\n          this.updateCeilLab()\n          this.updateFloorLab()\n          this.initHandles()\n          this.manageEventsBindings()\n\n          // Recalculate slider view dimensions\n          this.scope.$on('reCalcViewDimensions', calcDimFn)\n\n          // Recalculate stuff if view port dimensions have changed\n          angular.element($window).on('resize', calcDimFn)\n\n          this.initHasRun = true\n\n          // Watch for changes to the model\n          thrLow = rzThrottle(function() {\n            self.onLowHandleChange()\n          }, self.options.interval)\n\n          thrHigh = rzThrottle(function() {\n            self.onHighHandleChange()\n          }, self.options.interval)\n\n          this.scope.$on('rzSliderForceRender', function() {\n            self.resetLabelsValue()\n            thrLow()\n            if (self.range) {\n              thrHigh()\n            }\n            self.resetSlider()\n          })\n\n          // Watchers (order is important because in case of simultaneous change,\n          // watchers will be called in the same order)\n          this.scope.$watchCollection('rzSliderOptions()', function(\n            newValue,\n            oldValue\n          ) {\n            if (newValue === oldValue) return\n            self.applyOptions() // need to be called before synchronizing the values\n            self.syncLowValue()\n            if (self.range) self.syncHighValue()\n            self.resetSlider()\n          })\n\n          this.scope.$watch('rzSliderModel', function(newValue, oldValue) {\n            if (self.internalChange) return\n            if (newValue === oldValue) return\n            thrLow()\n          })\n\n          this.scope.$watch('rzSliderHigh', function(newValue, oldValue) {\n            if (self.internalChange) return\n            if (newValue === oldValue) return\n            if (newValue != null) thrHigh()\n            if (\n              (self.range && newValue == null) ||\n              (!self.range && newValue != null)\n            ) {\n              self.applyOptions()\n              self.resetSlider()\n            }\n          })\n\n          this.scope.$on('$destroy', function() {\n            self.unbindEvents()\n            angular.element($window).off('resize', calcDimFn)\n            self.currentFocusElement = null\n          })\n        },\n\n        findStepIndex: function(modelValue) {\n          var index = 0\n          for (var i = 0; i < this.options.stepsArray.length; i++) {\n            var step = this.options.stepsArray[i]\n            if (step === modelValue) {\n              index = i\n              break\n            } else if (angular.isDate(step)) {\n              if (step.getTime() === modelValue.getTime()) {\n                index = i\n                break\n              }\n            } else if (angular.isObject(step)) {\n              if (\n                (angular.isDate(step.value) &&\n                  step.value.getTime() === modelValue.getTime()) ||\n                step.value === modelValue\n              ) {\n                index = i\n                break\n              }\n            }\n          }\n          return index\n        },\n\n        syncLowValue: function() {\n          if (this.options.stepsArray) {\n            if (!this.options.bindIndexForStepsArray)\n              this.lowValue = this.findStepIndex(this.scope.rzSliderModel)\n            else this.lowValue = this.scope.rzSliderModel\n          } else this.lowValue = this.scope.rzSliderModel\n        },\n\n        syncHighValue: function() {\n          if (this.options.stepsArray) {\n            if (!this.options.bindIndexForStepsArray)\n              this.highValue = this.findStepIndex(this.scope.rzSliderHigh)\n            else this.highValue = this.scope.rzSliderHigh\n          } else this.highValue = this.scope.rzSliderHigh\n        },\n\n        getStepValue: function(sliderValue) {\n          var step = this.options.stepsArray[sliderValue]\n          if (angular.isDate(step)) return step\n          if (angular.isObject(step)) return step.value\n          return step\n        },\n\n        applyLowValue: function() {\n          if (this.options.stepsArray) {\n            if (!this.options.bindIndexForStepsArray)\n              this.scope.rzSliderModel = this.getStepValue(this.lowValue)\n            else this.scope.rzSliderModel = this.lowValue\n          } else this.scope.rzSliderModel = this.lowValue\n        },\n\n        applyHighValue: function() {\n          if (this.options.stepsArray) {\n            if (!this.options.bindIndexForStepsArray)\n              this.scope.rzSliderHigh = this.getStepValue(this.highValue)\n            else this.scope.rzSliderHigh = this.highValue\n          } else this.scope.rzSliderHigh = this.highValue\n        },\n\n        /*\n       * Reflow the slider when the low handle changes (called with throttle)\n       */\n        onLowHandleChange: function() {\n          this.syncLowValue()\n          if (this.range) this.syncHighValue()\n          this.setMinAndMax()\n          this.updateLowHandle(this.valueToPosition(this.lowValue))\n          this.updateSelectionBar()\n          this.updateTicksScale()\n          this.updateAriaAttributes()\n          if (this.range) {\n            this.updateCmbLabel()\n          }\n        },\n\n        /*\n       * Reflow the slider when the high handle changes (called with throttle)\n       */\n        onHighHandleChange: function() {\n          this.syncLowValue()\n          this.syncHighValue()\n          this.setMinAndMax()\n          this.updateHighHandle(this.valueToPosition(this.highValue))\n          this.updateSelectionBar()\n          this.updateTicksScale()\n          this.updateCmbLabel()\n          this.updateAriaAttributes()\n        },\n\n        /**\n         * Read the user options and apply them to the slider model\n         */\n        applyOptions: function() {\n          var sliderOptions\n          if (this.scope.rzSliderOptions)\n            sliderOptions = this.scope.rzSliderOptions()\n          else sliderOptions = {}\n\n          this.options = RzSliderOptions.getOptions(sliderOptions)\n\n          if (this.options.step <= 0) this.options.step = 1\n\n          this.range =\n            this.scope.rzSliderModel !== undefined &&\n            this.scope.rzSliderHigh !== undefined\n          this.options.draggableRange =\n            this.range && this.options.draggableRange\n          this.options.draggableRangeOnly =\n            this.range && this.options.draggableRangeOnly\n          if (this.options.draggableRangeOnly) {\n            this.options.draggableRange = true\n          }\n\n          this.options.showTicks =\n            this.options.showTicks ||\n            this.options.showTicksValues ||\n            !!this.options.ticksArray\n          this.scope.showTicks = this.options.showTicks //scope is used in the template\n          if (\n            angular.isNumber(this.options.showTicks) ||\n            this.options.ticksArray\n          )\n            this.intermediateTicks = true\n\n          this.options.showSelectionBar =\n            this.options.showSelectionBar ||\n            this.options.showSelectionBarEnd ||\n            this.options.showSelectionBarFromValue !== null\n\n          if (this.options.stepsArray) {\n            this.parseStepsArray()\n          } else {\n            if (this.options.translate) this.customTrFn = this.options.translate\n            else\n              this.customTrFn = function(value) {\n                return String(value)\n              }\n\n            this.getLegend = this.options.getLegend\n          }\n\n          if (this.options.vertical) {\n            this.positionProperty = 'bottom'\n            this.dimensionProperty = 'height'\n          }\n\n          if (this.options.customTemplateScope)\n            this.scope.custom = this.options.customTemplateScope\n        },\n\n        parseStepsArray: function() {\n          this.options.floor = 0\n          this.options.ceil = this.options.stepsArray.length - 1\n          this.options.step = 1\n\n          if (this.options.translate) {\n            this.customTrFn = this.options.translate\n          } else {\n            this.customTrFn = function(modelValue) {\n              if (this.options.bindIndexForStepsArray)\n                return this.getStepValue(modelValue)\n              return modelValue\n            }\n          }\n\n          this.getLegend = function(index) {\n            var step = this.options.stepsArray[index]\n            if (angular.isObject(step)) return step.legend\n            return null\n          }\n        },\n\n        /**\n         * Resets slider\n         *\n         * @returns {undefined}\n         */\n        resetSlider: function() {\n          this.manageElementsStyle()\n          this.addAccessibility()\n          this.setMinAndMax()\n          this.updateCeilLab()\n          this.updateFloorLab()\n          this.unbindEvents()\n          this.manageEventsBindings()\n          this.setDisabledState()\n          this.calcViewDimensions()\n          this.updateRestrictionBar()\n          this.refocusPointerIfNeeded()\n        },\n\n        refocusPointerIfNeeded: function() {\n          if (this.currentFocusElement) {\n            this.onPointerFocus(\n              this.currentFocusElement.pointer,\n              this.currentFocusElement.ref\n            )\n            this.focusElement(this.currentFocusElement.pointer)\n          }\n        },\n\n        /**\n         * Set the slider children to variables for easy access\n         *\n         * Run only once during initialization\n         *\n         * @returns {undefined}\n         */\n        initElemHandles: function() {\n          // Assign all slider elements to object properties for easy access\n          angular.forEach(\n            this.sliderElem.children(),\n            function(elem, index) {\n              var jElem = angular.element(elem)\n\n              switch (index) {\n                case 0:\n                  this.leftOutSelBar = jElem\n                  break\n                case 1:\n                  this.rightOutSelBar = jElem\n                  break\n                case 2:\n                  this.fullBar = jElem\n                  break\n                case 3:\n                  this.selBar = jElem\n                  break\n                case 4:\n                  this.restrictedBar = jElem\n                  break\n                case 5:\n                  this.minH = jElem\n                  break\n                case 6:\n                  this.maxH = jElem\n                  break\n                case 7:\n                  this.flrLab = jElem\n                  break\n                case 8:\n                  this.ceilLab = jElem\n                  break\n                case 9:\n                  this.minLab = jElem\n                  break\n                case 10:\n                  this.maxLab = jElem\n                  break\n                case 11:\n                  this.cmbLab = jElem\n                  break\n                case 12:\n                  this.ticks = jElem\n                  break\n              }\n            },\n            this\n          )\n\n          // Initialize position cache properties\n          this.selBar.rzsp = 0\n          this.minH.rzsp = 0\n          this.maxH.rzsp = 0\n          this.flrLab.rzsp = 0\n          this.ceilLab.rzsp = 0\n          this.minLab.rzsp = 0\n          this.maxLab.rzsp = 0\n          this.cmbLab.rzsp = 0\n        },\n\n        /**\n         * Update each elements style based on options\n         */\n        manageElementsStyle: function() {\n          if (!this.range) this.maxH.css('display', 'none')\n          else this.maxH.css('display', '')\n\n          this.alwaysHide(\n            this.flrLab,\n            this.options.showTicksValues || this.options.hideLimitLabels\n          )\n          this.alwaysHide(\n            this.ceilLab,\n            this.options.showTicksValues || this.options.hideLimitLabels\n          )\n\n          var hideLabelsForTicks =\n            this.options.showTicksValues && !this.intermediateTicks\n          this.alwaysHide(\n            this.minLab,\n            hideLabelsForTicks || this.options.hidePointerLabels\n          )\n          this.alwaysHide(\n            this.maxLab,\n            hideLabelsForTicks || !this.range || this.options.hidePointerLabels\n          )\n          this.alwaysHide(\n            this.cmbLab,\n            hideLabelsForTicks || !this.range || this.options.hidePointerLabels\n          )\n          this.alwaysHide(\n            this.selBar,\n            !this.range && !this.options.showSelectionBar\n          )\n          this.alwaysHide(\n            this.leftOutSelBar,\n            !this.range || !this.options.showOuterSelectionBars\n          )\n          this.alwaysHide(this.restrictedBar, !this.options.restrictedRange)\n          this.alwaysHide(\n            this.rightOutSelBar,\n            !this.range || !this.options.showOuterSelectionBars\n          )\n\n          if (this.range && this.options.showOuterSelectionBars) {\n            this.fullBar.addClass('rz-transparent')\n          }\n\n          if (this.options.vertical) this.sliderElem.addClass('rz-vertical')\n\n          if (this.options.draggableRange) this.selBar.addClass('rz-draggable')\n          else this.selBar.removeClass('rz-draggable')\n\n          if (this.intermediateTicks && this.options.showTicksValues)\n            this.ticks.addClass('rz-ticks-values-under')\n        },\n\n        alwaysHide: function(el, hide) {\n          el.rzAlwaysHide = hide\n          if (hide) this.hideEl(el)\n          else this.showEl(el)\n        },\n\n        /**\n         * Manage the events bindings based on readOnly and disabled options\n         *\n         * @returns {undefined}\n         */\n        manageEventsBindings: function() {\n          if (this.options.disabled || this.options.readOnly)\n            this.unbindEvents()\n          else this.bindEvents()\n        },\n\n        /**\n         * Set the disabled state based on rzSliderDisabled\n         *\n         * @returns {undefined}\n         */\n        setDisabledState: function() {\n          if (this.options.disabled) {\n            this.sliderElem.attr('disabled', 'disabled')\n          } else {\n            this.sliderElem.attr('disabled', null)\n          }\n        },\n\n        /**\n         * Reset label values\n         *\n         * @return {undefined}\n         */\n        resetLabelsValue: function() {\n          this.minLab.rzsv = undefined\n          this.maxLab.rzsv = undefined\n        },\n\n        /**\n         * Initialize slider handles positions and labels\n         *\n         * Run only once during initialization and every time view port changes size\n         *\n         * @returns {undefined}\n         */\n        initHandles: function() {\n          this.updateLowHandle(this.valueToPosition(this.lowValue))\n\n          /*\n         the order here is important since the selection bar should be\n         updated after the high handle but before the combined label\n         */\n          if (this.range)\n            this.updateHighHandle(this.valueToPosition(this.highValue))\n          this.updateSelectionBar()\n          if (this.range) this.updateCmbLabel()\n\n          this.updateTicksScale()\n        },\n\n        /**\n         * Translate value to human readable format\n         *\n         * @param {number|string} value\n         * @param {jqLite} label\n         * @param {String} which\n         * @param {boolean} [useCustomTr]\n         * @returns {undefined}\n         */\n        translateFn: function(value, label, which, useCustomTr) {\n          useCustomTr = useCustomTr === undefined ? true : useCustomTr\n\n          var valStr = '',\n            getDimension = false,\n            noLabelInjection = label.hasClass('no-label-injection')\n\n          if (useCustomTr) {\n            if (this.options.stepsArray && !this.options.bindIndexForStepsArray)\n              value = this.getStepValue(value)\n            valStr = String(this.customTrFn(value, this.options.id, which))\n          } else {\n            valStr = String(value)\n          }\n\n          if (\n            label.rzsv === undefined ||\n            label.rzsv.length !== valStr.length ||\n            (label.rzsv.length > 0 && label.rzsd === 0)\n          ) {\n            getDimension = true\n            label.rzsv = valStr\n          }\n\n          if (!noLabelInjection) {\n            label.html(valStr)\n          }\n          this.scope[which + 'Label'] = valStr\n\n          // Update width only when length of the label have changed\n          if (getDimension) {\n            this.getDimension(label)\n          }\n        },\n\n        /**\n         * Set maximum and minimum values for the slider and ensure the model and high\n         * value match these limits\n         * @returns {undefined}\n         */\n        setMinAndMax: function() {\n          this.step = +this.options.step\n          this.precision = +this.options.precision\n\n          this.minValue = this.options.floor\n          if (this.options.logScale && this.minValue === 0)\n            throw Error(\"Can't use floor=0 with logarithmic scale\")\n\n          if (this.options.enforceStep) {\n            this.lowValue = this.roundStep(this.lowValue)\n            if (this.range) this.highValue = this.roundStep(this.highValue)\n          }\n\n          if (this.options.ceil != null) this.maxValue = this.options.ceil\n          else\n            this.maxValue = this.options.ceil = this.range\n              ? this.highValue\n              : this.lowValue\n\n          if (this.options.enforceRange) {\n            this.lowValue = this.sanitizeValue(this.lowValue)\n            if (this.range) this.highValue = this.sanitizeValue(this.highValue)\n          }\n\n          this.applyLowValue()\n          if (this.range) this.applyHighValue()\n\n          this.valueRange = this.maxValue - this.minValue\n        },\n\n        /**\n         * Adds accessibility attributes\n         *\n         * Run only once during initialization\n         *\n         * @returns {undefined}\n         */\n        addAccessibility: function() {\n          this.minH.attr('role', 'slider')\n          this.updateAriaAttributes()\n          if (\n            this.options.keyboardSupport &&\n            !(this.options.readOnly || this.options.disabled)\n          )\n            this.minH.attr('tabindex', '0')\n          else this.minH.attr('tabindex', '')\n          if (this.options.vertical)\n            this.minH.attr('aria-orientation', 'vertical')\n          if (this.options.ariaLabel)\n            this.minH.attr('aria-label', this.options.ariaLabel)\n          else if (this.options.ariaLabelledBy)\n            this.minH.attr('aria-labelledby', this.options.ariaLabelledBy)\n\n          if (this.range) {\n            this.maxH.attr('role', 'slider')\n            if (\n              this.options.keyboardSupport &&\n              !(this.options.readOnly || this.options.disabled)\n            )\n              this.maxH.attr('tabindex', '0')\n            else this.maxH.attr('tabindex', '')\n            if (this.options.vertical)\n              this.maxH.attr('aria-orientation', 'vertical')\n            if (this.options.ariaLabelHigh)\n              this.maxH.attr('aria-label', this.options.ariaLabelHigh)\n            else if (this.options.ariaLabelledByHigh)\n              this.maxH.attr('aria-labelledby', this.options.ariaLabelledByHigh)\n          }\n        },\n\n        /**\n         * Updates aria attributes according to current values\n         */\n        updateAriaAttributes: function() {\n          this.minH.attr({\n            'aria-valuenow': this.scope.rzSliderModel,\n            'aria-valuetext': this.customTrFn(\n              this.scope.rzSliderModel,\n              this.options.id,\n              'model'\n            ),\n            'aria-valuemin': this.minValue,\n            'aria-valuemax': this.maxValue,\n          })\n          if (this.range) {\n            this.maxH.attr({\n              'aria-valuenow': this.scope.rzSliderHigh,\n              'aria-valuetext': this.customTrFn(\n                this.scope.rzSliderHigh,\n                this.options.id,\n                'high'\n              ),\n              'aria-valuemin': this.minValue,\n              'aria-valuemax': this.maxValue,\n            })\n          }\n        },\n\n        /**\n         * Calculate dimensions that are dependent on view port size\n         *\n         * Run once during initialization and every time view port changes size.\n         *\n         * @returns {undefined}\n         */\n        calcViewDimensions: function() {\n          var handleWidth = this.getDimension(this.minH)\n\n          this.handleHalfDim = handleWidth / 2\n          this.barDimension = this.getDimension(this.fullBar)\n\n          this.maxPos = this.barDimension - handleWidth\n\n          this.getDimension(this.sliderElem)\n          this.sliderElem.rzsp = this.sliderElem[0].getBoundingClientRect()[\n            this.positionProperty\n          ]\n\n          if (this.initHasRun) {\n            this.updateFloorLab()\n            this.updateCeilLab()\n            this.initHandles()\n            var self = this\n            $timeout(function() {\n              self.updateTicksScale()\n            })\n          }\n        },\n\n        /**\n         * Update the ticks position\n         *\n         * @returns {undefined}\n         */\n        updateTicksScale: function() {\n          if (!this.options.showTicks) return\n\n          var ticksArray = this.options.ticksArray || this.getTicksArray(),\n            translate = this.options.vertical ? 'translateY' : 'translateX',\n            self = this\n\n          if (this.options.rightToLeft) ticksArray.reverse()\n\n          this.scope.ticks = ticksArray.map(function(value) {\n            var legend = null;\n            if (angular.isObject(value)) {\n              legend = value.legend;\n              value = value.value\n            }\n\n            var position = self.valueToPosition(value)\n\n            if (self.options.vertical) position = self.maxPos - position\n\n            var translation = translate + '(' + Math.round(position) + 'px)'\n            var tick = {\n              legend: legend,\n              selected: self.isTickSelected(value),\n              style: {\n                '-webkit-transform': translation,\n                '-moz-transform': translation,\n                '-o-transform': translation,\n                '-ms-transform': translation,\n                transform: translation,\n              },\n            }\n            if (tick.selected && self.options.getSelectionBarColor) {\n              tick.style['background-color'] = self.getSelectionBarColor()\n            }\n            if (!tick.selected && self.options.getTickColor) {\n              tick.style['background-color'] = self.getTickColor(value)\n            }\n            if (self.options.ticksTooltip) {\n              tick.tooltip = self.options.ticksTooltip(value)\n              tick.tooltipPlacement = self.options.vertical ? 'right' : 'top'\n            }\n            if (\n              self.options.showTicksValues === true ||\n              value % self.options.showTicksValues === 0\n            ) {\n              tick.value = self.getDisplayValue(value, 'tick-value')\n              if (self.options.ticksValuesTooltip) {\n                tick.valueTooltip = self.options.ticksValuesTooltip(value)\n                tick.valueTooltipPlacement = self.options.vertical\n                  ? 'right'\n                  : 'top'\n              }\n            }\n            if (self.getLegend) {\n              legend = self.getLegend(value, self.options.id)\n              if (legend) tick.legend = legend\n            }\n            return tick\n          })\n        },\n\n        getTicksArray: function() {\n          var step = this.step,\n            ticksArray = []\n          if (this.intermediateTicks) step = this.options.showTicks\n          for (\n            var value = this.minValue;\n            value <= this.maxValue;\n            value += step\n          ) {\n            ticksArray.push(value)\n          }\n          return ticksArray\n        },\n\n        isTickSelected: function(value) {\n          if (!this.range) {\n            if (this.options.showSelectionBarFromValue !== null) {\n              var center = this.options.showSelectionBarFromValue\n              if (\n                this.lowValue > center &&\n                value >= center &&\n                value <= this.lowValue\n              )\n                return true\n              else if (\n                this.lowValue < center &&\n                value <= center &&\n                value >= this.lowValue\n              )\n                return true\n            } else if (this.options.showSelectionBarEnd) {\n              if (value >= this.lowValue) return true\n            } else if (this.options.showSelectionBar && value <= this.lowValue)\n              return true\n          }\n          if (this.range && value >= this.lowValue && value <= this.highValue)\n            return true\n          return false\n        },\n\n        /**\n         * Update position of the floor label\n         *\n         * @returns {undefined}\n         */\n        updateFloorLab: function() {\n          this.translateFn(this.minValue, this.flrLab, 'floor')\n          this.getDimension(this.flrLab)\n          var position = this.options.rightToLeft\n            ? this.barDimension - this.flrLab.rzsd\n            : 0\n          this.setPosition(this.flrLab, position)\n        },\n\n        /**\n         * Update position of the ceiling label\n         *\n         * @returns {undefined}\n         */\n        updateCeilLab: function() {\n          this.translateFn(this.maxValue, this.ceilLab, 'ceil')\n          this.getDimension(this.ceilLab)\n          var position = this.options.rightToLeft\n            ? 0\n            : this.barDimension - this.ceilLab.rzsd\n          this.setPosition(this.ceilLab, position)\n        },\n\n        /**\n         * Update slider handles and label positions\n         *\n         * @param {string} which\n         * @param {number} newPos\n         */\n        updateHandles: function(which, newPos) {\n          if (which === 'lowValue') this.updateLowHandle(newPos)\n          else this.updateHighHandle(newPos)\n\n          this.updateSelectionBar()\n          this.updateTicksScale()\n          if (this.range) this.updateCmbLabel()\n        },\n\n        /**\n         * Helper function to work out the position for handle labels depending on RTL or not\n         *\n         * @param {string} labelName maxLab or minLab\n         * @param newPos\n         *\n         * @returns {number}\n         */\n        getHandleLabelPos: function(labelName, newPos) {\n          var labelRzsd = this[labelName].rzsd,\n            nearHandlePos = newPos - labelRzsd / 2 + this.handleHalfDim,\n            endOfBarPos = this.barDimension - labelRzsd\n\n          if (!this.options.boundPointerLabels) return nearHandlePos\n\n          if (\n            (this.options.rightToLeft && labelName === 'minLab') ||\n            (!this.options.rightToLeft && labelName === 'maxLab')\n          ) {\n            return Math.min(nearHandlePos, endOfBarPos)\n          } else {\n            return Math.min(Math.max(nearHandlePos, 0), endOfBarPos)\n          }\n        },\n\n        /**\n         * Update low slider handle position and label\n         *\n         * @param {number} newPos\n         * @returns {undefined}\n         */\n        updateLowHandle: function(newPos) {\n          this.setPosition(this.minH, newPos)\n          this.translateFn(this.lowValue, this.minLab, 'model')\n          this.setPosition(\n            this.minLab,\n            this.getHandleLabelPos('minLab', newPos)\n          )\n\n          if (this.options.getPointerColor) {\n            var pointercolor = this.getPointerColor('min')\n            this.scope.minPointerStyle = {\n              backgroundColor: pointercolor,\n            }\n          }\n\n          if (this.options.autoHideLimitLabels) {\n            this.shFloorCeil()\n          }\n        },\n\n        /**\n         * Update high slider handle position and label\n         *\n         * @param {number} newPos\n         * @returns {undefined}\n         */\n        updateHighHandle: function(newPos) {\n          this.setPosition(this.maxH, newPos)\n          this.translateFn(this.highValue, this.maxLab, 'high')\n          this.setPosition(\n            this.maxLab,\n            this.getHandleLabelPos('maxLab', newPos)\n          )\n\n          if (this.options.getPointerColor) {\n            var pointercolor = this.getPointerColor('max')\n            this.scope.maxPointerStyle = {\n              backgroundColor: pointercolor,\n            }\n          }\n          if (this.options.autoHideLimitLabels) {\n            this.shFloorCeil()\n          }\n        },\n\n        /**\n         * Show/hide floor/ceiling label\n         *\n         * @returns {undefined}\n         */\n        shFloorCeil: function() {\n          // Show based only on hideLimitLabels if pointer labels are hidden\n          if (this.options.hidePointerLabels) {\n            return\n          }\n          var flHidden = false,\n            clHidden = false,\n            isMinLabAtFloor = this.isLabelBelowFloorLab(this.minLab),\n            isMinLabAtCeil = this.isLabelAboveCeilLab(this.minLab),\n            isMaxLabAtCeil = this.isLabelAboveCeilLab(this.maxLab),\n            isCmbLabAtFloor = this.isLabelBelowFloorLab(this.cmbLab),\n            isCmbLabAtCeil = this.isLabelAboveCeilLab(this.cmbLab)\n\n          if (isMinLabAtFloor) {\n            flHidden = true\n            this.hideEl(this.flrLab)\n          } else {\n            flHidden = false\n            this.showEl(this.flrLab)\n          }\n\n          if (isMinLabAtCeil) {\n            clHidden = true\n            this.hideEl(this.ceilLab)\n          } else {\n            clHidden = false\n            this.showEl(this.ceilLab)\n          }\n\n          if (this.range) {\n            var hideCeil = this.cmbLabelShown ? isCmbLabAtCeil : isMaxLabAtCeil\n            var hideFloor = this.cmbLabelShown\n              ? isCmbLabAtFloor\n              : isMinLabAtFloor\n\n            if (hideCeil) {\n              this.hideEl(this.ceilLab)\n            } else if (!clHidden) {\n              this.showEl(this.ceilLab)\n            }\n\n            // Hide or show floor label\n            if (hideFloor) {\n              this.hideEl(this.flrLab)\n            } else if (!flHidden) {\n              this.showEl(this.flrLab)\n            }\n          }\n        },\n\n        isLabelBelowFloorLab: function(label) {\n          var isRTL = this.options.rightToLeft,\n            pos = label.rzsp,\n            dim = label.rzsd,\n            floorPos = this.flrLab.rzsp,\n            floorDim = this.flrLab.rzsd\n          return isRTL\n            ? pos + dim >= floorPos - 2\n            : pos <= floorPos + floorDim + 2\n        },\n\n        isLabelAboveCeilLab: function(label) {\n          var isRTL = this.options.rightToLeft,\n            pos = label.rzsp,\n            dim = label.rzsd,\n            ceilPos = this.ceilLab.rzsp,\n            ceilDim = this.ceilLab.rzsd\n          return isRTL ? pos <= ceilPos + ceilDim + 2 : pos + dim >= ceilPos - 2\n        },\n\n        /**\n         * Update restricted area bar\n         *\n         * @returns {undefined}\n         */\n        updateRestrictionBar: function() {\n          var position = 0,\n            dimension = 0\n          if (this.options.restrictedRange) {\n            var from = this.valueToPosition(this.options.restrictedRange.from),\n              to = this.valueToPosition(this.options.restrictedRange.to)\n            dimension = Math.abs(to - from)\n            position = this.options.rightToLeft\n              ? to + this.handleHalfDim\n              : from + this.handleHalfDim\n            this.setDimension(this.restrictedBar, dimension)\n            this.setPosition(this.restrictedBar, position)\n          }\n        },\n\n        /**\n         * Update slider selection bar, combined label and range label\n         *\n         * @returns {undefined}\n         */\n        updateSelectionBar: function() {\n          var position = 0,\n            dimension = 0,\n            isSelectionBarFromRight = this.options.rightToLeft\n              ? !this.options.showSelectionBarEnd\n              : this.options.showSelectionBarEnd,\n            positionForRange = this.options.rightToLeft\n              ? this.maxH.rzsp + this.handleHalfDim\n              : this.minH.rzsp + this.handleHalfDim\n\n          if (this.range) {\n            dimension = Math.abs(this.maxH.rzsp - this.minH.rzsp)\n            position = positionForRange\n          } else {\n            if (this.options.showSelectionBarFromValue !== null) {\n              var center = this.options.showSelectionBarFromValue,\n                centerPosition = this.valueToPosition(center),\n                isModelGreaterThanCenter = this.options.rightToLeft\n                  ? this.lowValue <= center\n                  : this.lowValue > center\n              if (isModelGreaterThanCenter) {\n                dimension = this.minH.rzsp - centerPosition\n                position = centerPosition + this.handleHalfDim\n              } else {\n                dimension = centerPosition - this.minH.rzsp\n                position = this.minH.rzsp + this.handleHalfDim\n              }\n            } else if (isSelectionBarFromRight) {\n              dimension =\n                Math.abs(this.maxPos - this.minH.rzsp) + this.handleHalfDim\n              position = this.minH.rzsp + this.handleHalfDim\n            } else {\n              dimension = this.minH.rzsp + this.handleHalfDim\n              position = 0\n            }\n          }\n          this.setDimension(this.selBar, dimension)\n          this.setPosition(this.selBar, position)\n          if (this.range && this.options.showOuterSelectionBars) {\n            if (this.options.rightToLeft) {\n              this.setDimension(this.rightOutSelBar, position)\n              this.setPosition(this.rightOutSelBar, 0)\n              this.setDimension(\n                this.leftOutSelBar,\n                this.getDimension(this.fullBar) - (position + dimension)\n              )\n              this.setPosition(this.leftOutSelBar, position + dimension)\n            } else {\n              this.setDimension(this.leftOutSelBar, position)\n              this.setPosition(this.leftOutSelBar, 0)\n              this.setDimension(\n                this.rightOutSelBar,\n                this.getDimension(this.fullBar) - (position + dimension)\n              )\n              this.setPosition(this.rightOutSelBar, position + dimension)\n            }\n          }\n          if (this.options.getSelectionBarColor) {\n            var color = this.getSelectionBarColor()\n            this.scope.barStyle = {\n              backgroundColor: color,\n            }\n          } else if (this.options.selectionBarGradient) {\n            var offset =\n                this.options.showSelectionBarFromValue !== null\n                  ? this.valueToPosition(this.options.showSelectionBarFromValue)\n                  : 0,\n              reversed = (offset - position > 0) ^ isSelectionBarFromRight,\n              direction = this.options.vertical\n                ? reversed\n                  ? 'bottom'\n                  : 'top'\n                : reversed\n                  ? 'left'\n                  : 'right'\n            this.scope.barStyle = {\n              backgroundImage:\n                'linear-gradient(to ' +\n                direction +\n                ', ' +\n                this.options.selectionBarGradient.from +\n                ' 0%,' +\n                this.options.selectionBarGradient.to +\n                ' 100%)',\n            }\n            if (this.options.vertical) {\n              this.scope.barStyle.backgroundPosition =\n                'center ' +\n                (offset +\n                  dimension +\n                  position +\n                  (reversed ? -this.handleHalfDim : 0)) +\n                'px'\n              this.scope.barStyle.backgroundSize =\n                '100% ' + (this.barDimension - this.handleHalfDim) + 'px'\n            } else {\n              this.scope.barStyle.backgroundPosition =\n                offset -\n                position +\n                (reversed ? this.handleHalfDim : 0) +\n                'px center'\n              this.scope.barStyle.backgroundSize =\n                this.barDimension - this.handleHalfDim + 'px 100%'\n            }\n          }\n        },\n\n        /**\n         * Wrapper around the getSelectionBarColor of the user to pass to\n         * correct parameters\n         */\n        getSelectionBarColor: function() {\n          if (this.range)\n            return this.options.getSelectionBarColor(\n              this.scope.rzSliderModel,\n              this.scope.rzSliderHigh\n            )\n          return this.options.getSelectionBarColor(this.scope.rzSliderModel)\n        },\n\n        /**\n         * Wrapper around the getPointerColor of the user to pass to\n         * correct parameters\n         */\n        getPointerColor: function(pointerType) {\n          if (pointerType === 'max') {\n            return this.options.getPointerColor(\n              this.scope.rzSliderHigh,\n              pointerType\n            )\n          }\n          return this.options.getPointerColor(\n            this.scope.rzSliderModel,\n            pointerType\n          )\n        },\n\n        /**\n         * Wrapper around the getTickColor of the user to pass to\n         * correct parameters\n         */\n        getTickColor: function(value) {\n          return this.options.getTickColor(value)\n        },\n\n        /**\n         * Update combined label position and value\n         *\n         * @returns {undefined}\n         */\n        updateCmbLabel: function() {\n          var isLabelOverlap = null\n          if (this.options.rightToLeft) {\n            isLabelOverlap =\n              this.minLab.rzsp - this.minLab.rzsd - 10 <= this.maxLab.rzsp\n          } else {\n            isLabelOverlap =\n              this.minLab.rzsp + this.minLab.rzsd + 10 >= this.maxLab.rzsp\n          }\n\n          if (isLabelOverlap) {\n            var lowTr = this.getDisplayValue(this.lowValue, 'model'),\n              highTr = this.getDisplayValue(this.highValue, 'high'),\n              labelVal = ''\n            if (this.options.mergeRangeLabelsIfSame && lowTr === highTr) {\n              labelVal = lowTr\n            } else {\n              labelVal = this.options.rightToLeft\n                ? highTr + this.options.labelOverlapSeparator + lowTr\n                : lowTr + this.options.labelOverlapSeparator + highTr\n            }\n\n            this.translateFn(labelVal, this.cmbLab, 'cmb', false)\n            var pos = this.options.boundPointerLabels\n              ? Math.min(\n                  Math.max(\n                    this.selBar.rzsp +\n                      this.selBar.rzsd / 2 -\n                      this.cmbLab.rzsd / 2,\n                    0\n                  ),\n                  this.barDimension - this.cmbLab.rzsd\n                )\n              : this.selBar.rzsp + this.selBar.rzsd / 2 - this.cmbLab.rzsd / 2\n\n            this.setPosition(this.cmbLab, pos)\n            this.cmbLabelShown = true\n            this.hideEl(this.minLab)\n            this.hideEl(this.maxLab)\n            this.showEl(this.cmbLab)\n          } else {\n            this.cmbLabelShown = false\n            this.updateHighHandle(this.valueToPosition(this.highValue))\n            this.updateLowHandle(this.valueToPosition(this.lowValue))\n            this.showEl(this.maxLab)\n            this.showEl(this.minLab)\n            this.hideEl(this.cmbLab)\n          }\n          if (this.options.autoHideLimitLabels) {\n            this.shFloorCeil()\n          }\n        },\n\n        /**\n         * Return the translated value if a translate function is provided else the original value\n         * @param value\n         * @param which if it's min or max handle\n         * @returns {*}\n         */\n        getDisplayValue: function(value, which) {\n          if (this.options.stepsArray && !this.options.bindIndexForStepsArray) {\n            value = this.getStepValue(value)\n          }\n          return this.customTrFn(value, this.options.id, which)\n        },\n\n        /**\n         * Round value to step and precision based on minValue\n         *\n         * @param {number} value\n         * @param {number} customStep a custom step to override the defined step\n         * @returns {number}\n         */\n        roundStep: function(value, customStep) {\n          var step = customStep ? customStep : this.step,\n            steppedDifference = parseFloat(\n              (value - this.minValue) / step\n            ).toPrecision(12)\n          steppedDifference = Math.round(+steppedDifference) * step\n          var newValue = (this.minValue + steppedDifference).toFixed(\n            this.precision\n          )\n          return +newValue\n        },\n\n        /**\n         * Hide element\n         *\n         * @param element\n         * @returns {jqLite} The jqLite wrapped DOM element\n         */\n        hideEl: function(element) {\n          return element.css({\n            visibility: 'hidden',\n          })\n        },\n\n        /**\n         * Show element\n         *\n         * @param element The jqLite wrapped DOM element\n         * @returns {jqLite} The jqLite\n         */\n        showEl: function(element) {\n          if (!!element.rzAlwaysHide) {\n            return element\n          }\n\n          return element.css({\n            visibility: 'visible',\n          })\n        },\n\n        /**\n         * Set element left/top position depending on whether slider is horizontal or vertical\n         *\n         * @param {jqLite} elem The jqLite wrapped DOM element\n         * @param {number} pos\n         * @returns {number}\n         */\n        setPosition: function(elem, pos) {\n          elem.rzsp = pos\n          var css = {}\n          css[this.positionProperty] = Math.round(pos) + 'px'\n          elem.css(css)\n          return pos\n        },\n\n        /**\n         * Get element width/height depending on whether slider is horizontal or vertical\n         *\n         * @param {jqLite} elem The jqLite wrapped DOM element\n         * @returns {number}\n         */\n        getDimension: function(elem) {\n          var val = elem[0].getBoundingClientRect()\n          if (this.options.vertical)\n            elem.rzsd = (val.bottom - val.top) * this.options.scale\n          else elem.rzsd = (val.right - val.left) * this.options.scale\n          return elem.rzsd\n        },\n\n        /**\n         * Set element width/height depending on whether slider is horizontal or vertical\n         *\n         * @param {jqLite} elem  The jqLite wrapped DOM element\n         * @param {number} dim\n         * @returns {number}\n         */\n        setDimension: function(elem, dim) {\n          elem.rzsd = dim\n          var css = {}\n          css[this.dimensionProperty] = Math.round(dim) + 'px'\n          elem.css(css)\n          return dim\n        },\n\n        /**\n         * Returns a value that is within slider range\n         *\n         * @param {number} val\n         * @returns {number}\n         */\n        sanitizeValue: function(val) {\n          return Math.min(Math.max(val, this.minValue), this.maxValue)\n        },\n\n        /**\n         * Translate value to pixel position\n         *\n         * @param {number} val\n         * @returns {number}\n         */\n        valueToPosition: function(val) {\n          var fn = this.linearValueToPosition\n          if (this.options.customValueToPosition)\n            fn = this.options.customValueToPosition\n          else if (this.options.logScale) fn = this.logValueToPosition\n\n          val = this.sanitizeValue(val)\n          var percent = fn(val, this.minValue, this.maxValue) || 0\n          if (this.options.rightToLeft) percent = 1 - percent\n          return percent * this.maxPos\n        },\n\n        linearValueToPosition: function(val, minVal, maxVal) {\n          var range = maxVal - minVal\n          return (val - minVal) / range\n        },\n\n        logValueToPosition: function(val, minVal, maxVal) {\n          val = Math.log(val)\n          minVal = Math.log(minVal)\n          maxVal = Math.log(maxVal)\n          var range = maxVal - minVal\n          return (val - minVal) / range\n        },\n\n        /**\n         * Translate position to model value\n         *\n         * @param {number} position\n         * @returns {number}\n         */\n        positionToValue: function(position) {\n          var percent = position / this.maxPos\n          if (this.options.rightToLeft) percent = 1 - percent\n          var fn = this.linearPositionToValue\n          if (this.options.customPositionToValue)\n            fn = this.options.customPositionToValue\n          else if (this.options.logScale) fn = this.logPositionToValue\n          return fn(percent, this.minValue, this.maxValue) || 0\n        },\n\n        linearPositionToValue: function(percent, minVal, maxVal) {\n          return percent * (maxVal - minVal) + minVal\n        },\n\n        logPositionToValue: function(percent, minVal, maxVal) {\n          minVal = Math.log(minVal)\n          maxVal = Math.log(maxVal)\n          var value = percent * (maxVal - minVal) + minVal\n          return Math.exp(value)\n        },\n\n        getEventAttr: function(event, attr) {\n          return event.originalEvent === undefined\n            ? event[attr]\n            : event.originalEvent[attr]\n        },\n\n        // Events\n        /**\n         * Get the X-coordinate or Y-coordinate of an event\n         *\n         * @param {Object} event  The event\n         * @param targetTouchId The identifier of the touch with the X/Y coordinates\n         * @returns {number}\n         */\n        getEventXY: function(event, targetTouchId) {\n          /* http://stackoverflow.com/a/12336075/282882 */\n          //noinspection JSLint\n          var clientXY = this.options.vertical ? 'clientY' : 'clientX'\n          if (event[clientXY] !== undefined) {\n            return event[clientXY]\n          }\n\n          var touches = this.getEventAttr(event, 'touches')\n\n          if (targetTouchId !== undefined) {\n            for (var i = 0; i < touches.length; i++) {\n              if (touches[i].identifier === targetTouchId) {\n                return touches[i][clientXY]\n              }\n            }\n          }\n\n          // If no target touch or the target touch was not found in the event\n          // returns the coordinates of the first touch\n          return touches[0][clientXY]\n        },\n\n        /**\n         * Compute the event position depending on whether the slider is horizontal or vertical\n         * @param event\n         * @param targetTouchId If targetTouchId is provided it will be considered the position of that\n         * @returns {number}\n         */\n        getEventPosition: function(event, targetTouchId) {\n          var sliderPos = this.sliderElem.rzsp,\n            eventPos = 0\n          if (this.options.vertical)\n            eventPos = -this.getEventXY(event, targetTouchId) + sliderPos\n          else eventPos = this.getEventXY(event, targetTouchId) - sliderPos\n          return eventPos * this.options.scale - this.handleHalfDim // #346 handleHalfDim is already scaled\n        },\n\n        /**\n         * Get event names for move and event end\n         *\n         * @param {Event}    event    The event\n         *\n         * @return {{moveEvent: string, endEvent: string}}\n         */\n        getEventNames: function(event) {\n          var eventNames = {\n            moveEvent: '',\n            endEvent: '',\n          }\n\n          if (this.getEventAttr(event, 'touches')) {\n            eventNames.moveEvent = 'touchmove'\n            eventNames.endEvent = 'touchend'\n          } else {\n            eventNames.moveEvent = 'mousemove'\n            eventNames.endEvent = 'mouseup'\n          }\n\n          return eventNames\n        },\n\n        /**\n         * Get the handle closest to an event.\n         *\n         * @param event {Event} The event\n         * @returns {jqLite} The handle closest to the event.\n         */\n        getNearestHandle: function(event) {\n          if (!this.range) {\n            return this.minH\n          }\n          var position = this.getEventPosition(event),\n            distanceMin = Math.abs(position - this.minH.rzsp),\n            distanceMax = Math.abs(position - this.maxH.rzsp)\n          if (distanceMin < distanceMax) return this.minH\n          else if (distanceMin > distanceMax) return this.maxH\n          else if (!this.options.rightToLeft)\n            //if event is at the same distance from min/max then if it's at left of minH, we return minH else maxH\n            return position < this.minH.rzsp ? this.minH : this.maxH\n          //reverse in rtl\n          else return position > this.minH.rzsp ? this.minH : this.maxH\n        },\n\n        /**\n         * Wrapper function to focus an angular element\n         *\n         * @param el {AngularElement} the element to focus\n         */\n        focusElement: function(el) {\n          var DOM_ELEMENT = 0\n          el[DOM_ELEMENT].focus()\n        },\n\n        /**\n         * Bind mouse and touch events to slider handles\n         *\n         * @returns {undefined}\n         */\n        bindEvents: function() {\n          var barTracking, barStart, barMove\n\n          if (this.options.draggableRange) {\n            barTracking = 'rzSliderDrag'\n            barStart = this.onDragStart\n            barMove = this.onDragMove\n          } else {\n            barTracking = 'lowValue'\n            barStart = this.onStart\n            barMove = this.onMove\n          }\n\n          if (!this.options.onlyBindHandles) {\n            this.selBar.on(\n              'mousedown',\n              angular.bind(this, barStart, null, barTracking)\n            )\n            this.selBar.on(\n              'mousedown',\n              angular.bind(this, barMove, this.selBar)\n            )\n          }\n\n          if (this.options.draggableRangeOnly) {\n            this.minH.on(\n              'mousedown',\n              angular.bind(this, barStart, null, barTracking)\n            )\n            this.maxH.on(\n              'mousedown',\n              angular.bind(this, barStart, null, barTracking)\n            )\n          } else {\n            this.minH.on(\n              'mousedown',\n              angular.bind(this, this.onStart, this.minH, 'lowValue')\n            )\n            if (this.range) {\n              this.maxH.on(\n                'mousedown',\n                angular.bind(this, this.onStart, this.maxH, 'highValue')\n              )\n            }\n            if (!this.options.onlyBindHandles) {\n              this.fullBar.on(\n                'mousedown',\n                angular.bind(this, this.onStart, null, null)\n              )\n              this.fullBar.on(\n                'mousedown',\n                angular.bind(this, this.onMove, this.fullBar)\n              )\n              this.ticks.on(\n                'mousedown',\n                angular.bind(this, this.onStart, null, null)\n              )\n              this.ticks.on(\n                'mousedown',\n                angular.bind(this, this.onTickClick, this.ticks)\n              )\n            }\n          }\n\n          if (!this.options.onlyBindHandles) {\n            this.selBar.on(\n              'touchstart',\n              angular.bind(this, barStart, null, barTracking)\n            )\n            this.selBar.on(\n              'touchstart',\n              angular.bind(this, barMove, this.selBar)\n            )\n          }\n          if (this.options.draggableRangeOnly) {\n            this.minH.on(\n              'touchstart',\n              angular.bind(this, barStart, null, barTracking)\n            )\n            this.maxH.on(\n              'touchstart',\n              angular.bind(this, barStart, null, barTracking)\n            )\n          } else {\n            this.minH.on(\n              'touchstart',\n              angular.bind(this, this.onStart, this.minH, 'lowValue')\n            )\n            if (this.range) {\n              this.maxH.on(\n                'touchstart',\n                angular.bind(this, this.onStart, this.maxH, 'highValue')\n              )\n            }\n            if (!this.options.onlyBindHandles) {\n              this.fullBar.on(\n                'touchstart',\n                angular.bind(this, this.onStart, null, null)\n              )\n              this.fullBar.on(\n                'touchstart',\n                angular.bind(this, this.onMove, this.fullBar)\n              )\n              this.ticks.on(\n                'touchstart',\n                angular.bind(this, this.onStart, null, null)\n              )\n              this.ticks.on(\n                'touchstart',\n                angular.bind(this, this.onTickClick, this.ticks)\n              )\n            }\n          }\n\n          if (this.options.keyboardSupport) {\n            this.minH.on(\n              'focus',\n              angular.bind(this, this.onPointerFocus, this.minH, 'lowValue')\n            )\n            if (this.range) {\n              this.maxH.on(\n                'focus',\n                angular.bind(this, this.onPointerFocus, this.maxH, 'highValue')\n              )\n            }\n          }\n        },\n\n        /**\n         * Unbind mouse and touch events to slider handles\n         *\n         * @returns {undefined}\n         */\n        unbindEvents: function() {\n          this.minH.off()\n          this.maxH.off()\n          this.fullBar.off()\n          this.selBar.off()\n          this.ticks.off()\n        },\n\n        /**\n         * onStart event handler\n         *\n         * @param {?Object} pointer The jqLite wrapped DOM element; if null, the closest handle is used\n         * @param {?string} ref     The name of the handle being changed; if null, the closest handle's value is modified\n         * @param {Event}   event   The event\n         * @returns {undefined}\n         */\n        onStart: function(pointer, ref, event) {\n          var ehMove,\n            ehEnd,\n            eventNames = this.getEventNames(event)\n\n          event.stopPropagation()\n          event.preventDefault()\n\n          // We have to do this in case the HTML where the sliders are on\n          // have been animated into view.\n          this.calcViewDimensions()\n\n          if (pointer) {\n            this.tracking = ref\n          } else {\n            pointer = this.getNearestHandle(event)\n            this.tracking = pointer === this.minH ? 'lowValue' : 'highValue'\n          }\n\n          pointer.addClass('rz-active')\n\n          if (this.options.keyboardSupport) this.focusElement(pointer)\n\n          ehMove = angular.bind(\n            this,\n            this.dragging.active ? this.onDragMove : this.onMove,\n            pointer\n          )\n          ehEnd = angular.bind(this, this.onEnd, ehMove)\n\n          $document.on(eventNames.moveEvent, ehMove)\n          $document.on(eventNames.endEvent, ehEnd)\n          this.endHandlerToBeRemovedOnEnd = ehEnd\n\n          this.callOnStart()\n\n          var changedTouches = this.getEventAttr(event, 'changedTouches')\n          if (changedTouches) {\n            // Store the touch identifier\n            if (!this.touchId) {\n              this.isDragging = true\n              this.touchId = changedTouches[0].identifier\n            }\n          }\n        },\n\n        /**\n         * onMove event handler\n         *\n         * @param {jqLite} pointer\n         * @param {Event}  event The event\n         * @param {boolean}  fromTick if the event occured on a tick or not\n         * @returns {undefined}\n         */\n        onMove: function(pointer, event, fromTick) {\n          var changedTouches = this.getEventAttr(event, 'changedTouches')\n          var touchForThisSlider\n          if (changedTouches) {\n            for (var i = 0; i < changedTouches.length; i++) {\n              if (changedTouches[i].identifier === this.touchId) {\n                touchForThisSlider = changedTouches[i]\n                break\n              }\n            }\n          }\n\n          if (changedTouches && !touchForThisSlider) {\n            return\n          }\n\n          var newPos = this.getEventPosition(\n              event,\n              touchForThisSlider ? touchForThisSlider.identifier : undefined\n            ),\n            newValue,\n            ceilValue = this.options.rightToLeft\n              ? this.minValue\n              : this.maxValue,\n            flrValue = this.options.rightToLeft ? this.maxValue : this.minValue\n\n          if (newPos <= 0) {\n            newValue = flrValue\n          } else if (newPos >= this.maxPos) {\n            newValue = ceilValue\n          } else {\n            newValue = this.positionToValue(newPos)\n            if (fromTick && angular.isNumber(this.options.showTicks))\n              newValue = this.roundStep(newValue, this.options.showTicks)\n            else newValue = this.roundStep(newValue)\n          }\n          this.positionTrackingHandle(newValue)\n        },\n\n        /**\n         * onEnd event handler\n         *\n         * @param {Event}    event    The event\n         * @param {Function} ehMove   The bound move event handler\n         * @returns {undefined}\n         */\n        onEnd: function(ehMove, event) {\n          var changedTouches = this.getEventAttr(event, 'changedTouches')\n          if (changedTouches && changedTouches[0].identifier !== this.touchId) {\n            return\n          }\n          this.isDragging = false\n          this.touchId = null\n\n          if (!this.options.keyboardSupport) {\n            this.minH.removeClass('rz-active')\n            this.maxH.removeClass('rz-active')\n            this.tracking = ''\n          }\n          this.dragging.active = false\n\n          var eventName = this.getEventNames(event)\n          $document.off(eventName.moveEvent, ehMove)\n          $document.off(eventName.endEvent, this.endHandlerToBeRemovedOnEnd)\n          this.endHandlerToBeRemovedOnEnd = null\n          this.callOnEnd()\n        },\n\n        onTickClick: function(pointer, event) {\n          this.onMove(pointer, event, true)\n        },\n\n        onPointerFocus: function(pointer, ref) {\n          this.tracking = ref\n          pointer.one('blur', angular.bind(this, this.onPointerBlur, pointer))\n          pointer.on('keydown', angular.bind(this, this.onKeyboardEvent))\n          pointer.on('keyup', angular.bind(this, this.onKeyUp))\n          this.firstKeyDown = true\n          pointer.addClass('rz-active')\n\n          this.currentFocusElement = {\n            pointer: pointer,\n            ref: ref,\n          }\n        },\n\n        onKeyUp: function() {\n          this.firstKeyDown = true\n          this.callOnEnd()\n        },\n\n        onPointerBlur: function(pointer) {\n          pointer.off('keydown')\n          pointer.off('keyup')\n          pointer.removeClass('rz-active')\n          if (!this.isDragging) {\n            this.tracking = ''\n            this.currentFocusElement = null\n          }\n        },\n\n        /**\n         * Key actions helper function\n         *\n         * @param {number} currentValue value of the slider\n         *\n         * @returns {?Object} action value mappings\n         */\n        getKeyActions: function(currentValue) {\n          var increaseStep = currentValue + this.step,\n            decreaseStep = currentValue - this.step,\n            increasePage = currentValue + this.valueRange / 10,\n            decreasePage = currentValue - this.valueRange / 10\n\n          if (this.options.reversedControls) {\n            increaseStep = currentValue - this.step\n            decreaseStep = currentValue + this.step\n            increasePage = currentValue - this.valueRange / 10\n            decreasePage = currentValue + this.valueRange / 10\n          }\n\n          //Left to right default actions\n          var actions = {\n            UP: increaseStep,\n            DOWN: decreaseStep,\n            LEFT: decreaseStep,\n            RIGHT: increaseStep,\n            PAGEUP: increasePage,\n            PAGEDOWN: decreasePage,\n            HOME: this.options.reversedControls ? this.maxValue : this.minValue,\n            END: this.options.reversedControls ? this.minValue : this.maxValue,\n          }\n          //right to left means swapping right and left arrows\n          if (this.options.rightToLeft) {\n            actions.LEFT = increaseStep\n            actions.RIGHT = decreaseStep\n            // right to left and vertical means we also swap up and down\n            if (this.options.vertical) {\n              actions.UP = decreaseStep\n              actions.DOWN = increaseStep\n            }\n          }\n          return actions\n        },\n\n        onKeyboardEvent: function(event) {\n          var currentValue = this[this.tracking],\n            keyCode = event.keyCode || event.which,\n            keys = {\n              38: 'UP',\n              40: 'DOWN',\n              37: 'LEFT',\n              39: 'RIGHT',\n              33: 'PAGEUP',\n              34: 'PAGEDOWN',\n              36: 'HOME',\n              35: 'END',\n            },\n            actions = this.getKeyActions(currentValue),\n            key = keys[keyCode],\n            action = actions[key]\n          if (action == null || this.tracking === '') return\n          event.preventDefault()\n\n          if (this.firstKeyDown) {\n            this.firstKeyDown = false\n            this.callOnStart()\n          }\n\n          var self = this\n          $timeout(function() {\n            var newValue = self.roundStep(self.sanitizeValue(action))\n            if (!self.options.draggableRangeOnly) {\n              self.positionTrackingHandle(newValue)\n            } else {\n              var difference = self.highValue - self.lowValue,\n                newMinValue,\n                newMaxValue\n              if (self.tracking === 'lowValue') {\n                newMinValue = newValue\n                newMaxValue = newValue + difference\n                if (newMaxValue > self.maxValue) {\n                  newMaxValue = self.maxValue\n                  newMinValue = newMaxValue - difference\n                }\n              } else {\n                newMaxValue = newValue\n                newMinValue = newValue - difference\n                if (newMinValue < self.minValue) {\n                  newMinValue = self.minValue\n                  newMaxValue = newMinValue + difference\n                }\n              }\n              self.positionTrackingBar(newMinValue, newMaxValue)\n            }\n          })\n        },\n\n        /**\n         * onDragStart event handler\n         *\n         * Handles dragging of the middle bar.\n         *\n         * @param {Object} pointer The jqLite wrapped DOM element\n         * @param {string} ref     One of the refLow, refHigh values\n         * @param {Event}  event   The event\n         * @returns {undefined}\n         */\n        onDragStart: function(pointer, ref, event) {\n          var position = this.getEventPosition(event)\n          this.dragging = {\n            active: true,\n            value: this.positionToValue(position),\n            difference: this.highValue - this.lowValue,\n            lowLimit: this.options.rightToLeft\n              ? this.minH.rzsp - position\n              : position - this.minH.rzsp,\n            highLimit: this.options.rightToLeft\n              ? position - this.maxH.rzsp\n              : this.maxH.rzsp - position,\n          }\n\n          this.onStart(pointer, ref, event)\n        },\n\n        /**\n         * getValue helper function\n         *\n         * gets max or min value depending on whether the newPos is outOfBounds above or below the bar and rightToLeft\n         *\n         * @param {string} type 'max' || 'min' The value we are calculating\n         * @param {number} newPos  The new position\n         * @param {boolean} outOfBounds Is the new position above or below the max/min?\n         * @param {boolean} isAbove Is the new position above the bar if out of bounds?\n         *\n         * @returns {number}\n         */\n        getValue: function(type, newPos, outOfBounds, isAbove) {\n          var isRTL = this.options.rightToLeft,\n            value = null\n\n          if (type === 'min') {\n            if (outOfBounds) {\n              if (isAbove) {\n                value = isRTL\n                  ? this.minValue\n                  : this.maxValue - this.dragging.difference\n              } else {\n                value = isRTL\n                  ? this.maxValue - this.dragging.difference\n                  : this.minValue\n              }\n            } else {\n              value = isRTL\n                ? this.positionToValue(newPos + this.dragging.lowLimit)\n                : this.positionToValue(newPos - this.dragging.lowLimit)\n            }\n          } else {\n            if (outOfBounds) {\n              if (isAbove) {\n                value = isRTL\n                  ? this.minValue + this.dragging.difference\n                  : this.maxValue\n              } else {\n                value = isRTL\n                  ? this.maxValue\n                  : this.minValue + this.dragging.difference\n              }\n            } else {\n              if (isRTL) {\n                value =\n                  this.positionToValue(newPos + this.dragging.lowLimit) +\n                  this.dragging.difference\n              } else {\n                value =\n                  this.positionToValue(newPos - this.dragging.lowLimit) +\n                  this.dragging.difference\n              }\n            }\n          }\n          return this.roundStep(value)\n        },\n\n        /**\n         * onDragMove event handler\n         *\n         * Handles dragging of the middle bar.\n         *\n         * @param {jqLite} pointer\n         * @param {Event}  event The event\n         * @returns {undefined}\n         */\n        onDragMove: function(pointer, event) {\n          var newPos = this.getEventPosition(event),\n            newMinValue,\n            newMaxValue,\n            ceilLimit,\n            flrLimit,\n            isUnderFlrLimit,\n            isOverCeilLimit,\n            flrH,\n            ceilH\n\n          if (this.options.rightToLeft) {\n            ceilLimit = this.dragging.lowLimit\n            flrLimit = this.dragging.highLimit\n            flrH = this.maxH\n            ceilH = this.minH\n          } else {\n            ceilLimit = this.dragging.highLimit\n            flrLimit = this.dragging.lowLimit\n            flrH = this.minH\n            ceilH = this.maxH\n          }\n          isUnderFlrLimit = newPos <= flrLimit\n          isOverCeilLimit = newPos >= this.maxPos - ceilLimit\n\n          if (isUnderFlrLimit) {\n            if (flrH.rzsp === 0) return\n            newMinValue = this.getValue('min', newPos, true, false)\n            newMaxValue = this.getValue('max', newPos, true, false)\n          } else if (isOverCeilLimit) {\n            if (ceilH.rzsp === this.maxPos) return\n            newMaxValue = this.getValue('max', newPos, true, true)\n            newMinValue = this.getValue('min', newPos, true, true)\n          } else {\n            newMinValue = this.getValue('min', newPos, false)\n            newMaxValue = this.getValue('max', newPos, false)\n          }\n          this.positionTrackingBar(newMinValue, newMaxValue)\n        },\n\n        /**\n         * Set the new value and position for the entire bar\n         *\n         * @param {number} newMinValue   the new minimum value\n         * @param {number} newMaxValue   the new maximum value\n         */\n        positionTrackingBar: function(newMinValue, newMaxValue) {\n          if (\n            this.options.minLimit != null &&\n            newMinValue < this.options.minLimit\n          ) {\n            newMinValue = this.options.minLimit\n            newMaxValue = newMinValue + this.dragging.difference\n          }\n          if (\n            this.options.maxLimit != null &&\n            newMaxValue > this.options.maxLimit\n          ) {\n            newMaxValue = this.options.maxLimit\n            newMinValue = newMaxValue - this.dragging.difference\n          }\n\n          this.lowValue = newMinValue\n          this.highValue = newMaxValue\n          this.applyLowValue()\n          if (this.range) this.applyHighValue()\n          this.applyModel(true)\n          this.updateHandles('lowValue', this.valueToPosition(newMinValue))\n          this.updateHandles('highValue', this.valueToPosition(newMaxValue))\n        },\n\n        /**\n         * Set the new value and position to the current tracking handle\n         *\n         * @param {number} newValue new model value\n         */\n        positionTrackingHandle: function(newValue) {\n          var valueChanged = false\n          newValue = this.applyMinMaxLimit(newValue)\n          newValue = this.applyRestrictedRange(newValue)\n          if (this.range) {\n            if (this.options.pushRange) {\n              newValue = this.applyPushRange(newValue)\n              valueChanged = true\n            } else {\n              if (this.options.noSwitching) {\n                if (this.tracking === 'lowValue' && newValue > this.highValue)\n                  newValue = this.applyMinMaxRange(this.highValue)\n                else if (\n                  this.tracking === 'highValue' &&\n                  newValue < this.lowValue\n                )\n                  newValue = this.applyMinMaxRange(this.lowValue)\n              }\n              newValue = this.applyMinMaxRange(newValue)\n              /* This is to check if we need to switch the min and max handles */\n              if (this.tracking === 'lowValue' && newValue > this.highValue) {\n                this.lowValue = this.highValue\n                this.applyLowValue()\n                this.applyModel()\n                this.updateHandles(this.tracking, this.maxH.rzsp)\n                this.updateAriaAttributes()\n                this.tracking = 'highValue'\n                this.minH.removeClass('rz-active')\n                this.maxH.addClass('rz-active')\n                if (this.options.keyboardSupport) this.focusElement(this.maxH)\n                valueChanged = true\n              } else if (\n                this.tracking === 'highValue' &&\n                newValue < this.lowValue\n              ) {\n                this.highValue = this.lowValue\n                this.applyHighValue()\n                this.applyModel()\n                this.updateHandles(this.tracking, this.minH.rzsp)\n                this.updateAriaAttributes()\n                this.tracking = 'lowValue'\n                this.maxH.removeClass('rz-active')\n                this.minH.addClass('rz-active')\n                if (this.options.keyboardSupport) this.focusElement(this.minH)\n                valueChanged = true\n              }\n            }\n          }\n\n          if (this[this.tracking] !== newValue) {\n            this[this.tracking] = newValue\n            if (this.tracking === 'lowValue') this.applyLowValue()\n            else this.applyHighValue()\n            this.applyModel()\n            this.updateHandles(this.tracking, this.valueToPosition(newValue))\n            this.updateAriaAttributes()\n            valueChanged = true\n          }\n\n          if (valueChanged) this.applyModel(true)\n        },\n\n        applyMinMaxLimit: function(newValue) {\n          if (this.options.minLimit != null && newValue < this.options.minLimit)\n            return this.options.minLimit\n          if (this.options.maxLimit != null && newValue > this.options.maxLimit)\n            return this.options.maxLimit\n          return newValue\n        },\n\n        applyMinMaxRange: function(newValue) {\n          var oppositeValue =\n              this.tracking === 'lowValue' ? this.highValue : this.lowValue,\n            difference = Math.abs(newValue - oppositeValue)\n          if (this.options.minRange != null) {\n            if (difference < this.options.minRange) {\n              if (this.tracking === 'lowValue')\n                return this.highValue - this.options.minRange\n              else return this.lowValue + this.options.minRange\n            }\n          }\n          if (this.options.maxRange != null) {\n            if (difference > this.options.maxRange) {\n              if (this.tracking === 'lowValue')\n                return this.highValue - this.options.maxRange\n              else return this.lowValue + this.options.maxRange\n            }\n          }\n          return newValue\n        },\n\n        applyRestrictedRange: function(newValue) {\n          if (\n            this.options.restrictedRange != null &&\n            newValue > this.options.restrictedRange.from &&\n            newValue < this.options.restrictedRange.to\n          ) {\n            var halfWidth =\n              (this.options.restrictedRange.to -\n                this.options.restrictedRange.from) /\n              2\n            if (this.tracking === 'lowValue') {\n              return newValue > this.options.restrictedRange.from + halfWidth\n                ? this.options.restrictedRange.to\n                : this.options.restrictedRange.from\n            }\n            if (this.tracking === 'highValue') {\n              return newValue < this.options.restrictedRange.to - halfWidth\n                ? this.options.restrictedRange.from\n                : this.options.restrictedRange.to\n            }\n          }\n          return newValue\n        },\n\n        applyPushRange: function(newValue) {\n          var difference =\n              this.tracking === 'lowValue'\n                ? this.highValue - newValue\n                : newValue - this.lowValue,\n            minRange =\n              this.options.minRange !== null\n                ? this.options.minRange\n                : this.options.step,\n            maxRange = this.options.maxRange\n          // if smaller than minRange\n          if (difference < minRange) {\n            if (this.tracking === 'lowValue') {\n              this.highValue = Math.min(newValue + minRange, this.maxValue)\n              newValue = this.highValue - minRange\n              this.applyHighValue()\n              this.updateHandles(\n                'highValue',\n                this.valueToPosition(this.highValue)\n              )\n            } else {\n              this.lowValue = Math.max(newValue - minRange, this.minValue)\n              newValue = this.lowValue + minRange\n              this.applyLowValue()\n              this.updateHandles(\n                'lowValue',\n                this.valueToPosition(this.lowValue)\n              )\n            }\n            this.updateAriaAttributes()\n          } else if (maxRange !== null && difference > maxRange) {\n            // if greater than maxRange\n            if (this.tracking === 'lowValue') {\n              this.highValue = newValue + maxRange\n              this.applyHighValue()\n              this.updateHandles(\n                'highValue',\n                this.valueToPosition(this.highValue)\n              )\n            } else {\n              this.lowValue = newValue - maxRange\n              this.applyLowValue()\n              this.updateHandles(\n                'lowValue',\n                this.valueToPosition(this.lowValue)\n              )\n            }\n            this.updateAriaAttributes()\n          }\n          return newValue\n        },\n\n        /**\n         * Apply the model values using scope.$apply.\n         * We wrap it with the internalChange flag to avoid the watchers to be called\n         */\n        applyModel: function(callOnChange) {\n          this.internalChange = true\n          this.scope.$apply()\n          callOnChange && this.callOnChange()\n          this.internalChange = false\n        },\n\n        /**\n         * Call the onStart callback if defined\n         * The callback call is wrapped in a $evalAsync to ensure that its result will be applied to the scope.\n         *\n         * @returns {undefined}\n         */\n        callOnStart: function() {\n          if (this.options.onStart) {\n            var self = this,\n              pointerType = this.tracking === 'lowValue' ? 'min' : 'max'\n            this.scope.$evalAsync(function() {\n              self.options.onStart(\n                self.options.id,\n                self.scope.rzSliderModel,\n                self.scope.rzSliderHigh,\n                pointerType\n              )\n            })\n          }\n        },\n\n        /**\n         * Call the onChange callback if defined\n         * The callback call is wrapped in a $evalAsync to ensure that its result will be applied to the scope.\n         *\n         * @returns {undefined}\n         */\n        callOnChange: function() {\n          if (this.options.onChange) {\n            var self = this,\n              pointerType = this.tracking === 'lowValue' ? 'min' : 'max'\n            this.scope.$evalAsync(function() {\n              self.options.onChange(\n                self.options.id,\n                self.scope.rzSliderModel,\n                self.scope.rzSliderHigh,\n                pointerType\n              )\n            })\n          }\n        },\n\n        /**\n         * Call the onEnd callback if defined\n         * The callback call is wrapped in a $evalAsync to ensure that its result will be applied to the scope.\n         *\n         * @returns {undefined}\n         */\n        callOnEnd: function() {\n          if (this.options.onEnd) {\n            var self = this,\n              pointerType = this.tracking === 'lowValue' ? 'min' : 'max'\n            this.scope.$evalAsync(function() {\n              self.options.onEnd(\n                self.options.id,\n                self.scope.rzSliderModel,\n                self.scope.rzSliderHigh,\n                pointerType\n              )\n            })\n          }\n          this.scope.$emit('slideEnded')\n        },\n      }\n\n      return Slider\n    }])\n    .directive('rzslider', ['RzSlider', function(RzSlider) {\n      'use strict'\n\n      return {\n        restrict: 'AE',\n        replace: true,\n        scope: {\n          rzSliderModel: '=?',\n          rzSliderHigh: '=?',\n          rzSliderOptions: '&?',\n          rzSliderTplUrl: '@',\n        },\n\n        /**\n         * Return template URL\n         *\n         * @param {jqLite} elem\n         * @param {Object} attrs\n         * @return {string}\n         */\n        templateUrl: function(elem, attrs) {\n          //noinspection JSUnresolvedVariable\n          return attrs.rzSliderTplUrl || 'rzSliderTpl.html'\n        },\n\n        link: function(scope, elem) {\n          scope.slider = new RzSlider(scope, elem) //attach on scope so we can test it\n        },\n      }\n    }])\n\n  // IDE assist\n\n  /**\n   * @name ngScope\n   *\n   * @property {number} rzSliderModel\n   * @property {number} rzSliderHigh\n   * @property {Object} rzSliderOptions\n   */\n\n  /**\n   * @name jqLite\n   *\n   * @property {number|undefined} rzsp rzslider label position position\n   * @property {number|undefined} rzsd rzslider element dimension\n   * @property {string|undefined} rzsv rzslider label value/text\n   * @property {Function} css\n   * @property {Function} text\n   */\n\n  /**\n   * @name Event\n   * @property {Array} touches\n   * @property {Event} originalEvent\n   */\n\n  /**\n   * @name ThrottleOptions\n   *\n   * @property {boolean} leading\n   * @property {boolean} trailing\n   */\n\n  module.run(['$templateCache', function($templateCache) {\n  'use strict';\n\n  $templateCache.put('rzSliderTpl.html',\n    \"<div class=rzslider><span class=\\\"rz-bar-wrapper rz-left-out-selection\\\"><span class=rz-bar></span></span> <span class=\\\"rz-bar-wrapper rz-right-out-selection\\\"><span class=rz-bar></span></span> <span class=rz-bar-wrapper><span class=rz-bar></span></span> <span class=rz-bar-wrapper><span class=\\\"rz-bar rz-selection\\\" ng-style=barStyle></span></span> <span class=rz-bar-wrapper><span class=\\\"rz-bar rz-restricted\\\" ng-style=restrictionStyle></span></span> <span class=\\\"rz-pointer rz-pointer-min\\\" ng-style=minPointerStyle></span> <span class=\\\"rz-pointer rz-pointer-max\\\" ng-style=maxPointerStyle></span> <span class=\\\"rz-bubble rz-limit rz-floor\\\"></span> <span class=\\\"rz-bubble rz-limit rz-ceil\\\"></span> <span class=\\\"rz-bubble rz-model-value\\\"></span> <span class=\\\"rz-bubble rz-model-high\\\"></span> <span class=rz-bubble></span><ul ng-show=showTicks class=rz-ticks><li ng-repeat=\\\"t in ticks track by $index\\\" class=rz-tick ng-class=\\\"{'rz-selected': t.selected}\\\" ng-style=t.style ng-attr-uib-tooltip=\\\"{{ t.tooltip }}\\\" ng-attr-tooltip-placement={{t.tooltipPlacement}} ng-attr-tooltip-append-to-body=\\\"{{ t.tooltip ? true : undefined}}\\\"><span ng-if=\\\"t.value != null\\\" class=rz-tick-value ng-attr-uib-tooltip=\\\"{{ t.valueTooltip }}\\\" ng-attr-tooltip-placement={{t.valueTooltipPlacement}}>{{ t.value }}</span> <span ng-if=\\\"t.legend != null\\\" class=rz-tick-legend>{{ t.legend }}</span></li></ul></div>\"\n  );\n\n}]);\n\n  return module.name\n})\n;\n/*\n * angular-ui-bootstrap\n * http://angular-ui.github.io/bootstrap/\n\n * Version: 2.5.0 - 2017-01-28\n * License: MIT\n */angular.module(\"ui.bootstrap\", [\"ui.bootstrap.tpls\", \"ui.bootstrap.collapse\",\"ui.bootstrap.tabindex\",\"ui.bootstrap.accordion\",\"ui.bootstrap.alert\",\"ui.bootstrap.buttons\",\"ui.bootstrap.carousel\",\"ui.bootstrap.dateparser\",\"ui.bootstrap.isClass\",\"ui.bootstrap.datepicker\",\"ui.bootstrap.position\",\"ui.bootstrap.datepickerPopup\",\"ui.bootstrap.debounce\",\"ui.bootstrap.multiMap\",\"ui.bootstrap.dropdown\",\"ui.bootstrap.stackedMap\",\"ui.bootstrap.modal\",\"ui.bootstrap.paging\",\"ui.bootstrap.pager\",\"ui.bootstrap.pagination\",\"ui.bootstrap.tooltip\",\"ui.bootstrap.popover\",\"ui.bootstrap.progressbar\",\"ui.bootstrap.rating\",\"ui.bootstrap.tabs\",\"ui.bootstrap.timepicker\",\"ui.bootstrap.typeahead\"]);\nangular.module(\"ui.bootstrap.tpls\", [\"uib/template/accordion/accordion-group.html\",\"uib/template/accordion/accordion.html\",\"uib/template/alert/alert.html\",\"uib/template/carousel/carousel.html\",\"uib/template/carousel/slide.html\",\"uib/template/datepicker/datepicker.html\",\"uib/template/datepicker/day.html\",\"uib/template/datepicker/month.html\",\"uib/template/datepicker/year.html\",\"uib/template/datepickerPopup/popup.html\",\"uib/template/modal/window.html\",\"uib/template/pager/pager.html\",\"uib/template/pagination/pagination.html\",\"uib/template/tooltip/tooltip-html-popup.html\",\"uib/template/tooltip/tooltip-popup.html\",\"uib/template/tooltip/tooltip-template-popup.html\",\"uib/template/popover/popover-html.html\",\"uib/template/popover/popover-template.html\",\"uib/template/popover/popover.html\",\"uib/template/progressbar/bar.html\",\"uib/template/progressbar/progress.html\",\"uib/template/progressbar/progressbar.html\",\"uib/template/rating/rating.html\",\"uib/template/tabs/tab.html\",\"uib/template/tabs/tabset.html\",\"uib/template/timepicker/timepicker.html\",\"uib/template/typeahead/typeahead-match.html\",\"uib/template/typeahead/typeahead-popup.html\"]);\nangular.module('ui.bootstrap.collapse', [])\n\n  .directive('uibCollapse', ['$animate', '$q', '$parse', '$injector', function($animate, $q, $parse, $injector) {\n    var $animateCss = $injector.has('$animateCss') ? $injector.get('$animateCss') : null;\n    return {\n      link: function(scope, element, attrs) {\n        var expandingExpr = $parse(attrs.expanding),\n          expandedExpr = $parse(attrs.expanded),\n          collapsingExpr = $parse(attrs.collapsing),\n          collapsedExpr = $parse(attrs.collapsed),\n          horizontal = false,\n          css = {},\n          cssTo = {};\n\n        init();\n\n        function init() {\n          horizontal = !!('horizontal' in attrs);\n          if (horizontal) {\n            css = {\n              width: ''\n            };\n            cssTo = {width: '0'};\n          } else {\n            css = {\n              height: ''\n            };\n            cssTo = {height: '0'};\n          }\n          if (!scope.$eval(attrs.uibCollapse)) {\n            element.addClass('in')\n              .addClass('collapse')\n              .attr('aria-expanded', true)\n              .attr('aria-hidden', false)\n              .css(css);\n          }\n        }\n\n        function getScrollFromElement(element) {\n          if (horizontal) {\n            return {width: element.scrollWidth + 'px'};\n          }\n          return {height: element.scrollHeight + 'px'};\n        }\n\n        function expand() {\n          if (element.hasClass('collapse') && element.hasClass('in')) {\n            return;\n          }\n\n          $q.resolve(expandingExpr(scope))\n            .then(function() {\n              element.removeClass('collapse')\n                .addClass('collapsing')\n                .attr('aria-expanded', true)\n                .attr('aria-hidden', false);\n\n              if ($animateCss) {\n                $animateCss(element, {\n                  addClass: 'in',\n                  easing: 'ease',\n                  css: {\n                    overflow: 'hidden'\n                  },\n                  to: getScrollFromElement(element[0])\n                }).start()['finally'](expandDone);\n              } else {\n                $animate.addClass(element, 'in', {\n                  css: {\n                    overflow: 'hidden'\n                  },\n                  to: getScrollFromElement(element[0])\n                }).then(expandDone);\n              }\n            }, angular.noop);\n        }\n\n        function expandDone() {\n          element.removeClass('collapsing')\n            .addClass('collapse')\n            .css(css);\n          expandedExpr(scope);\n        }\n\n        function collapse() {\n          if (!element.hasClass('collapse') && !element.hasClass('in')) {\n            return collapseDone();\n          }\n\n          $q.resolve(collapsingExpr(scope))\n            .then(function() {\n              element\n              // IMPORTANT: The width must be set before adding \"collapsing\" class.\n              // Otherwise, the browser attempts to animate from width 0 (in\n              // collapsing class) to the given width here.\n                .css(getScrollFromElement(element[0]))\n                // initially all panel collapse have the collapse class, this removal\n                // prevents the animation from jumping to collapsed state\n                .removeClass('collapse')\n                .addClass('collapsing')\n                .attr('aria-expanded', false)\n                .attr('aria-hidden', true);\n\n              if ($animateCss) {\n                $animateCss(element, {\n                  removeClass: 'in',\n                  to: cssTo\n                }).start()['finally'](collapseDone);\n              } else {\n                $animate.removeClass(element, 'in', {\n                  to: cssTo\n                }).then(collapseDone);\n              }\n            }, angular.noop);\n        }\n\n        function collapseDone() {\n          element.css(cssTo); // Required so that collapse works when animation is disabled\n          element.removeClass('collapsing')\n            .addClass('collapse');\n          collapsedExpr(scope);\n        }\n\n        scope.$watch(attrs.uibCollapse, function(shouldCollapse) {\n          if (shouldCollapse) {\n            collapse();\n          } else {\n            expand();\n          }\n        });\n      }\n    };\n  }]);\n\nangular.module('ui.bootstrap.tabindex', [])\n\n.directive('uibTabindexToggle', function() {\n  return {\n    restrict: 'A',\n    link: function(scope, elem, attrs) {\n      attrs.$observe('disabled', function(disabled) {\n        attrs.$set('tabindex', disabled ? -1 : null);\n      });\n    }\n  };\n});\n\nangular.module('ui.bootstrap.accordion', ['ui.bootstrap.collapse', 'ui.bootstrap.tabindex'])\n\n.constant('uibAccordionConfig', {\n  closeOthers: true\n})\n\n.controller('UibAccordionController', ['$scope', '$attrs', 'uibAccordionConfig', function($scope, $attrs, accordionConfig) {\n  // This array keeps track of the accordion groups\n  this.groups = [];\n\n  // Ensure that all the groups in this accordion are closed, unless close-others explicitly says not to\n  this.closeOthers = function(openGroup) {\n    var closeOthers = angular.isDefined($attrs.closeOthers) ?\n      $scope.$eval($attrs.closeOthers) : accordionConfig.closeOthers;\n    if (closeOthers) {\n      angular.forEach(this.groups, function(group) {\n        if (group !== openGroup) {\n          group.isOpen = false;\n        }\n      });\n    }\n  };\n\n  // This is called from the accordion-group directive to add itself to the accordion\n  this.addGroup = function(groupScope) {\n    var that = this;\n    this.groups.push(groupScope);\n\n    groupScope.$on('$destroy', function(event) {\n      that.removeGroup(groupScope);\n    });\n  };\n\n  // This is called from the accordion-group directive when to remove itself\n  this.removeGroup = function(group) {\n    var index = this.groups.indexOf(group);\n    if (index !== -1) {\n      this.groups.splice(index, 1);\n    }\n  };\n}])\n\n// The accordion directive simply sets up the directive controller\n// and adds an accordion CSS class to itself element.\n.directive('uibAccordion', function() {\n  return {\n    controller: 'UibAccordionController',\n    controllerAs: 'accordion',\n    transclude: true,\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/accordion/accordion.html';\n    }\n  };\n})\n\n// The accordion-group directive indicates a block of html that will expand and collapse in an accordion\n.directive('uibAccordionGroup', function() {\n  return {\n    require: '^uibAccordion',         // We need this directive to be inside an accordion\n    transclude: true,              // It transcludes the contents of the directive into the template\n    restrict: 'A',\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/accordion/accordion-group.html';\n    },\n    scope: {\n      heading: '@',               // Interpolate the heading attribute onto this scope\n      panelClass: '@?',           // Ditto with panelClass\n      isOpen: '=?',\n      isDisabled: '=?'\n    },\n    controller: function() {\n      this.setHeading = function(element) {\n        this.heading = element;\n      };\n    },\n    link: function(scope, element, attrs, accordionCtrl) {\n      element.addClass('panel');\n      accordionCtrl.addGroup(scope);\n\n      scope.openClass = attrs.openClass || 'panel-open';\n      scope.panelClass = attrs.panelClass || 'panel-default';\n      scope.$watch('isOpen', function(value) {\n        element.toggleClass(scope.openClass, !!value);\n        if (value) {\n          accordionCtrl.closeOthers(scope);\n        }\n      });\n\n      scope.toggleOpen = function($event) {\n        if (!scope.isDisabled) {\n          if (!$event || $event.which === 32) {\n            scope.isOpen = !scope.isOpen;\n          }\n        }\n      };\n\n      var id = 'accordiongroup-' + scope.$id + '-' + Math.floor(Math.random() * 10000);\n      scope.headingId = id + '-tab';\n      scope.panelId = id + '-panel';\n    }\n  };\n})\n\n// Use accordion-heading below an accordion-group to provide a heading containing HTML\n.directive('uibAccordionHeading', function() {\n  return {\n    transclude: true,   // Grab the contents to be used as the heading\n    template: '',       // In effect remove this element!\n    replace: true,\n    require: '^uibAccordionGroup',\n    link: function(scope, element, attrs, accordionGroupCtrl, transclude) {\n      // Pass the heading to the accordion-group controller\n      // so that it can be transcluded into the right place in the template\n      // [The second parameter to transclude causes the elements to be cloned so that they work in ng-repeat]\n      accordionGroupCtrl.setHeading(transclude(scope, angular.noop));\n    }\n  };\n})\n\n// Use in the accordion-group template to indicate where you want the heading to be transcluded\n// You must provide the property on the accordion-group controller that will hold the transcluded element\n.directive('uibAccordionTransclude', function() {\n  return {\n    require: '^uibAccordionGroup',\n    link: function(scope, element, attrs, controller) {\n      scope.$watch(function() { return controller[attrs.uibAccordionTransclude]; }, function(heading) {\n        if (heading) {\n          var elem = angular.element(element[0].querySelector(getHeaderSelectors()));\n          elem.html('');\n          elem.append(heading);\n        }\n      });\n    }\n  };\n\n  function getHeaderSelectors() {\n      return 'uib-accordion-header,' +\n          'data-uib-accordion-header,' +\n          'x-uib-accordion-header,' +\n          'uib\\\\:accordion-header,' +\n          '[uib-accordion-header],' +\n          '[data-uib-accordion-header],' +\n          '[x-uib-accordion-header]';\n  }\n});\n\nangular.module('ui.bootstrap.alert', [])\n\n.controller('UibAlertController', ['$scope', '$element', '$attrs', '$interpolate', '$timeout', function($scope, $element, $attrs, $interpolate, $timeout) {\n  $scope.closeable = !!$attrs.close;\n  $element.addClass('alert');\n  $attrs.$set('role', 'alert');\n  if ($scope.closeable) {\n    $element.addClass('alert-dismissible');\n  }\n\n  var dismissOnTimeout = angular.isDefined($attrs.dismissOnTimeout) ?\n    $interpolate($attrs.dismissOnTimeout)($scope.$parent) : null;\n\n  if (dismissOnTimeout) {\n    $timeout(function() {\n      $scope.close();\n    }, parseInt(dismissOnTimeout, 10));\n  }\n}])\n\n.directive('uibAlert', function() {\n  return {\n    controller: 'UibAlertController',\n    controllerAs: 'alert',\n    restrict: 'A',\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/alert/alert.html';\n    },\n    transclude: true,\n    scope: {\n      close: '&'\n    }\n  };\n});\n\nangular.module('ui.bootstrap.buttons', [])\n\n.constant('uibButtonConfig', {\n  activeClass: 'active',\n  toggleEvent: 'click'\n})\n\n.controller('UibButtonsController', ['uibButtonConfig', function(buttonConfig) {\n  this.activeClass = buttonConfig.activeClass || 'active';\n  this.toggleEvent = buttonConfig.toggleEvent || 'click';\n}])\n\n.directive('uibBtnRadio', ['$parse', function($parse) {\n  return {\n    require: ['uibBtnRadio', 'ngModel'],\n    controller: 'UibButtonsController',\n    controllerAs: 'buttons',\n    link: function(scope, element, attrs, ctrls) {\n      var buttonsCtrl = ctrls[0], ngModelCtrl = ctrls[1];\n      var uncheckableExpr = $parse(attrs.uibUncheckable);\n\n      element.find('input').css({display: 'none'});\n\n      //model -> UI\n      ngModelCtrl.$render = function() {\n        element.toggleClass(buttonsCtrl.activeClass, angular.equals(ngModelCtrl.$modelValue, scope.$eval(attrs.uibBtnRadio)));\n      };\n\n      //ui->model\n      element.on(buttonsCtrl.toggleEvent, function() {\n        if (attrs.disabled) {\n          return;\n        }\n\n        var isActive = element.hasClass(buttonsCtrl.activeClass);\n\n        if (!isActive || angular.isDefined(attrs.uncheckable)) {\n          scope.$apply(function() {\n            ngModelCtrl.$setViewValue(isActive ? null : scope.$eval(attrs.uibBtnRadio));\n            ngModelCtrl.$render();\n          });\n        }\n      });\n\n      if (attrs.uibUncheckable) {\n        scope.$watch(uncheckableExpr, function(uncheckable) {\n          attrs.$set('uncheckable', uncheckable ? '' : undefined);\n        });\n      }\n    }\n  };\n}])\n\n.directive('uibBtnCheckbox', function() {\n  return {\n    require: ['uibBtnCheckbox', 'ngModel'],\n    controller: 'UibButtonsController',\n    controllerAs: 'button',\n    link: function(scope, element, attrs, ctrls) {\n      var buttonsCtrl = ctrls[0], ngModelCtrl = ctrls[1];\n\n      element.find('input').css({display: 'none'});\n\n      function getTrueValue() {\n        return getCheckboxValue(attrs.btnCheckboxTrue, true);\n      }\n\n      function getFalseValue() {\n        return getCheckboxValue(attrs.btnCheckboxFalse, false);\n      }\n\n      function getCheckboxValue(attribute, defaultValue) {\n        return angular.isDefined(attribute) ? scope.$eval(attribute) : defaultValue;\n      }\n\n      //model -> UI\n      ngModelCtrl.$render = function() {\n        element.toggleClass(buttonsCtrl.activeClass, angular.equals(ngModelCtrl.$modelValue, getTrueValue()));\n      };\n\n      //ui->model\n      element.on(buttonsCtrl.toggleEvent, function() {\n        if (attrs.disabled) {\n          return;\n        }\n\n        scope.$apply(function() {\n          ngModelCtrl.$setViewValue(element.hasClass(buttonsCtrl.activeClass) ? getFalseValue() : getTrueValue());\n          ngModelCtrl.$render();\n        });\n      });\n    }\n  };\n});\n\nangular.module('ui.bootstrap.carousel', [])\n\n.controller('UibCarouselController', ['$scope', '$element', '$interval', '$timeout', '$animate', function($scope, $element, $interval, $timeout, $animate) {\n  var self = this,\n    slides = self.slides = $scope.slides = [],\n    SLIDE_DIRECTION = 'uib-slideDirection',\n    currentIndex = $scope.active,\n    currentInterval, isPlaying;\n\n  var destroyed = false;\n  $element.addClass('carousel');\n\n  self.addSlide = function(slide, element) {\n    slides.push({\n      slide: slide,\n      element: element\n    });\n    slides.sort(function(a, b) {\n      return +a.slide.index - +b.slide.index;\n    });\n    //if this is the first slide or the slide is set to active, select it\n    if (slide.index === $scope.active || slides.length === 1 && !angular.isNumber($scope.active)) {\n      if ($scope.$currentTransition) {\n        $scope.$currentTransition = null;\n      }\n\n      currentIndex = slide.index;\n      $scope.active = slide.index;\n      setActive(currentIndex);\n      self.select(slides[findSlideIndex(slide)]);\n      if (slides.length === 1) {\n        $scope.play();\n      }\n    }\n  };\n\n  self.getCurrentIndex = function() {\n    for (var i = 0; i < slides.length; i++) {\n      if (slides[i].slide.index === currentIndex) {\n        return i;\n      }\n    }\n  };\n\n  self.next = $scope.next = function() {\n    var newIndex = (self.getCurrentIndex() + 1) % slides.length;\n\n    if (newIndex === 0 && $scope.noWrap()) {\n      $scope.pause();\n      return;\n    }\n\n    return self.select(slides[newIndex], 'next');\n  };\n\n  self.prev = $scope.prev = function() {\n    var newIndex = self.getCurrentIndex() - 1 < 0 ? slides.length - 1 : self.getCurrentIndex() - 1;\n\n    if ($scope.noWrap() && newIndex === slides.length - 1) {\n      $scope.pause();\n      return;\n    }\n\n    return self.select(slides[newIndex], 'prev');\n  };\n\n  self.removeSlide = function(slide) {\n    var index = findSlideIndex(slide);\n\n    //get the index of the slide inside the carousel\n    slides.splice(index, 1);\n    if (slides.length > 0 && currentIndex === index) {\n      if (index >= slides.length) {\n        currentIndex = slides.length - 1;\n        $scope.active = currentIndex;\n        setActive(currentIndex);\n        self.select(slides[slides.length - 1]);\n      } else {\n        currentIndex = index;\n        $scope.active = currentIndex;\n        setActive(currentIndex);\n        self.select(slides[index]);\n      }\n    } else if (currentIndex > index) {\n      currentIndex--;\n      $scope.active = currentIndex;\n    }\n\n    //clean the active value when no more slide\n    if (slides.length === 0) {\n      currentIndex = null;\n      $scope.active = null;\n    }\n  };\n\n  /* direction: \"prev\" or \"next\" */\n  self.select = $scope.select = function(nextSlide, direction) {\n    var nextIndex = findSlideIndex(nextSlide.slide);\n    //Decide direction if it's not given\n    if (direction === undefined) {\n      direction = nextIndex > self.getCurrentIndex() ? 'next' : 'prev';\n    }\n    //Prevent this user-triggered transition from occurring if there is already one in progress\n    if (nextSlide.slide.index !== currentIndex &&\n      !$scope.$currentTransition) {\n      goNext(nextSlide.slide, nextIndex, direction);\n    }\n  };\n\n  /* Allow outside people to call indexOf on slides array */\n  $scope.indexOfSlide = function(slide) {\n    return +slide.slide.index;\n  };\n\n  $scope.isActive = function(slide) {\n    return $scope.active === slide.slide.index;\n  };\n\n  $scope.isPrevDisabled = function() {\n    return $scope.active === 0 && $scope.noWrap();\n  };\n\n  $scope.isNextDisabled = function() {\n    return $scope.active === slides.length - 1 && $scope.noWrap();\n  };\n\n  $scope.pause = function() {\n    if (!$scope.noPause) {\n      isPlaying = false;\n      resetTimer();\n    }\n  };\n\n  $scope.play = function() {\n    if (!isPlaying) {\n      isPlaying = true;\n      restartTimer();\n    }\n  };\n\n  $element.on('mouseenter', $scope.pause);\n  $element.on('mouseleave', $scope.play);\n\n  $scope.$on('$destroy', function() {\n    destroyed = true;\n    resetTimer();\n  });\n\n  $scope.$watch('noTransition', function(noTransition) {\n    $animate.enabled($element, !noTransition);\n  });\n\n  $scope.$watch('interval', restartTimer);\n\n  $scope.$watchCollection('slides', resetTransition);\n\n  $scope.$watch('active', function(index) {\n    if (angular.isNumber(index) && currentIndex !== index) {\n      for (var i = 0; i < slides.length; i++) {\n        if (slides[i].slide.index === index) {\n          index = i;\n          break;\n        }\n      }\n\n      var slide = slides[index];\n      if (slide) {\n        setActive(index);\n        self.select(slides[index]);\n        currentIndex = index;\n      }\n    }\n  });\n\n  function getSlideByIndex(index) {\n    for (var i = 0, l = slides.length; i < l; ++i) {\n      if (slides[i].index === index) {\n        return slides[i];\n      }\n    }\n  }\n\n  function setActive(index) {\n    for (var i = 0; i < slides.length; i++) {\n      slides[i].slide.active = i === index;\n    }\n  }\n\n  function goNext(slide, index, direction) {\n    if (destroyed) {\n      return;\n    }\n\n    angular.extend(slide, {direction: direction});\n    angular.extend(slides[currentIndex].slide || {}, {direction: direction});\n    if ($animate.enabled($element) && !$scope.$currentTransition &&\n      slides[index].element && self.slides.length > 1) {\n      slides[index].element.data(SLIDE_DIRECTION, slide.direction);\n      var currentIdx = self.getCurrentIndex();\n\n      if (angular.isNumber(currentIdx) && slides[currentIdx].element) {\n        slides[currentIdx].element.data(SLIDE_DIRECTION, slide.direction);\n      }\n\n      $scope.$currentTransition = true;\n      $animate.on('addClass', slides[index].element, function(element, phase) {\n        if (phase === 'close') {\n          $scope.$currentTransition = null;\n          $animate.off('addClass', element);\n        }\n      });\n    }\n\n    $scope.active = slide.index;\n    currentIndex = slide.index;\n    setActive(index);\n\n    //every time you change slides, reset the timer\n    restartTimer();\n  }\n\n  function findSlideIndex(slide) {\n    for (var i = 0; i < slides.length; i++) {\n      if (slides[i].slide === slide) {\n        return i;\n      }\n    }\n  }\n\n  function resetTimer() {\n    if (currentInterval) {\n      $interval.cancel(currentInterval);\n      currentInterval = null;\n    }\n  }\n\n  function resetTransition(slides) {\n    if (!slides.length) {\n      $scope.$currentTransition = null;\n    }\n  }\n\n  function restartTimer() {\n    resetTimer();\n    var interval = +$scope.interval;\n    if (!isNaN(interval) && interval > 0) {\n      currentInterval = $interval(timerFn, interval);\n    }\n  }\n\n  function timerFn() {\n    var interval = +$scope.interval;\n    if (isPlaying && !isNaN(interval) && interval > 0 && slides.length) {\n      $scope.next();\n    } else {\n      $scope.pause();\n    }\n  }\n}])\n\n.directive('uibCarousel', function() {\n  return {\n    transclude: true,\n    controller: 'UibCarouselController',\n    controllerAs: 'carousel',\n    restrict: 'A',\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/carousel/carousel.html';\n    },\n    scope: {\n      active: '=',\n      interval: '=',\n      noTransition: '=',\n      noPause: '=',\n      noWrap: '&'\n    }\n  };\n})\n\n.directive('uibSlide', ['$animate', function($animate) {\n  return {\n    require: '^uibCarousel',\n    restrict: 'A',\n    transclude: true,\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/carousel/slide.html';\n    },\n    scope: {\n      actual: '=?',\n      index: '=?'\n    },\n    link: function (scope, element, attrs, carouselCtrl) {\n      element.addClass('item');\n      carouselCtrl.addSlide(scope, element);\n      //when the scope is destroyed then remove the slide from the current slides array\n      scope.$on('$destroy', function() {\n        carouselCtrl.removeSlide(scope);\n      });\n\n      scope.$watch('active', function(active) {\n        $animate[active ? 'addClass' : 'removeClass'](element, 'active');\n      });\n    }\n  };\n}])\n\n.animation('.item', ['$animateCss',\nfunction($animateCss) {\n  var SLIDE_DIRECTION = 'uib-slideDirection';\n\n  function removeClass(element, className, callback) {\n    element.removeClass(className);\n    if (callback) {\n      callback();\n    }\n  }\n\n  return {\n    beforeAddClass: function(element, className, done) {\n      if (className === 'active') {\n        var stopped = false;\n        var direction = element.data(SLIDE_DIRECTION);\n        var directionClass = direction === 'next' ? 'left' : 'right';\n        var removeClassFn = removeClass.bind(this, element,\n          directionClass + ' ' + direction, done);\n        element.addClass(direction);\n\n        $animateCss(element, {addClass: directionClass})\n          .start()\n          .done(removeClassFn);\n\n        return function() {\n          stopped = true;\n        };\n      }\n      done();\n    },\n    beforeRemoveClass: function (element, className, done) {\n      if (className === 'active') {\n        var stopped = false;\n        var direction = element.data(SLIDE_DIRECTION);\n        var directionClass = direction === 'next' ? 'left' : 'right';\n        var removeClassFn = removeClass.bind(this, element, directionClass, done);\n\n        $animateCss(element, {addClass: directionClass})\n          .start()\n          .done(removeClassFn);\n\n        return function() {\n          stopped = true;\n        };\n      }\n      done();\n    }\n  };\n}]);\n\nangular.module('ui.bootstrap.dateparser', [])\n\n.service('uibDateParser', ['$log', '$locale', 'dateFilter', 'orderByFilter', 'filterFilter', function($log, $locale, dateFilter, orderByFilter, filterFilter) {\n  // Pulled from https://github.com/mbostock/d3/blob/master/src/format/requote.js\n  var SPECIAL_CHARACTERS_REGEXP = /[\\\\\\^\\$\\*\\+\\?\\|\\[\\]\\(\\)\\.\\{\\}]/g;\n\n  var localeId;\n  var formatCodeToRegex;\n\n  this.init = function() {\n    localeId = $locale.id;\n\n    this.parsers = {};\n    this.formatters = {};\n\n    formatCodeToRegex = [\n      {\n        key: 'yyyy',\n        regex: '\\\\d{4}',\n        apply: function(value) { this.year = +value; },\n        formatter: function(date) {\n          var _date = new Date();\n          _date.setFullYear(Math.abs(date.getFullYear()));\n          return dateFilter(_date, 'yyyy');\n        }\n      },\n      {\n        key: 'yy',\n        regex: '\\\\d{2}',\n        apply: function(value) { value = +value; this.year = value < 69 ? value + 2000 : value + 1900; },\n        formatter: function(date) {\n          var _date = new Date();\n          _date.setFullYear(Math.abs(date.getFullYear()));\n          return dateFilter(_date, 'yy');\n        }\n      },\n      {\n        key: 'y',\n        regex: '\\\\d{1,4}',\n        apply: function(value) { this.year = +value; },\n        formatter: function(date) {\n          var _date = new Date();\n          _date.setFullYear(Math.abs(date.getFullYear()));\n          return dateFilter(_date, 'y');\n        }\n      },\n      {\n        key: 'M!',\n        regex: '0?[1-9]|1[0-2]',\n        apply: function(value) { this.month = value - 1; },\n        formatter: function(date) {\n          var value = date.getMonth();\n          if (/^[0-9]$/.test(value)) {\n            return dateFilter(date, 'MM');\n          }\n\n          return dateFilter(date, 'M');\n        }\n      },\n      {\n        key: 'MMMM',\n        regex: $locale.DATETIME_FORMATS.MONTH.join('|'),\n        apply: function(value) { this.month = $locale.DATETIME_FORMATS.MONTH.indexOf(value); },\n        formatter: function(date) { return dateFilter(date, 'MMMM'); }\n      },\n      {\n        key: 'MMM',\n        regex: $locale.DATETIME_FORMATS.SHORTMONTH.join('|'),\n        apply: function(value) { this.month = $locale.DATETIME_FORMATS.SHORTMONTH.indexOf(value); },\n        formatter: function(date) { return dateFilter(date, 'MMM'); }\n      },\n      {\n        key: 'MM',\n        regex: '0[1-9]|1[0-2]',\n        apply: function(value) { this.month = value - 1; },\n        formatter: function(date) { return dateFilter(date, 'MM'); }\n      },\n      {\n        key: 'M',\n        regex: '[1-9]|1[0-2]',\n        apply: function(value) { this.month = value - 1; },\n        formatter: function(date) { return dateFilter(date, 'M'); }\n      },\n      {\n        key: 'd!',\n        regex: '[0-2]?[0-9]{1}|3[0-1]{1}',\n        apply: function(value) { this.date = +value; },\n        formatter: function(date) {\n          var value = date.getDate();\n          if (/^[1-9]$/.test(value)) {\n            return dateFilter(date, 'dd');\n          }\n\n          return dateFilter(date, 'd');\n        }\n      },\n      {\n        key: 'dd',\n        regex: '[0-2][0-9]{1}|3[0-1]{1}',\n        apply: function(value) { this.date = +value; },\n        formatter: function(date) { return dateFilter(date, 'dd'); }\n      },\n      {\n        key: 'd',\n        regex: '[1-2]?[0-9]{1}|3[0-1]{1}',\n        apply: function(value) { this.date = +value; },\n        formatter: function(date) { return dateFilter(date, 'd'); }\n      },\n      {\n        key: 'EEEE',\n        regex: $locale.DATETIME_FORMATS.DAY.join('|'),\n        formatter: function(date) { return dateFilter(date, 'EEEE'); }\n      },\n      {\n        key: 'EEE',\n        regex: $locale.DATETIME_FORMATS.SHORTDAY.join('|'),\n        formatter: function(date) { return dateFilter(date, 'EEE'); }\n      },\n      {\n        key: 'HH',\n        regex: '(?:0|1)[0-9]|2[0-3]',\n        apply: function(value) { this.hours = +value; },\n        formatter: function(date) { return dateFilter(date, 'HH'); }\n      },\n      {\n        key: 'hh',\n        regex: '0[0-9]|1[0-2]',\n        apply: function(value) { this.hours = +value; },\n        formatter: function(date) { return dateFilter(date, 'hh'); }\n      },\n      {\n        key: 'H',\n        regex: '1?[0-9]|2[0-3]',\n        apply: function(value) { this.hours = +value; },\n        formatter: function(date) { return dateFilter(date, 'H'); }\n      },\n      {\n        key: 'h',\n        regex: '[0-9]|1[0-2]',\n        apply: function(value) { this.hours = +value; },\n        formatter: function(date) { return dateFilter(date, 'h'); }\n      },\n      {\n        key: 'mm',\n        regex: '[0-5][0-9]',\n        apply: function(value) { this.minutes = +value; },\n        formatter: function(date) { return dateFilter(date, 'mm'); }\n      },\n      {\n        key: 'm',\n        regex: '[0-9]|[1-5][0-9]',\n        apply: function(value) { this.minutes = +value; },\n        formatter: function(date) { return dateFilter(date, 'm'); }\n      },\n      {\n        key: 'sss',\n        regex: '[0-9][0-9][0-9]',\n        apply: function(value) { this.milliseconds = +value; },\n        formatter: function(date) { return dateFilter(date, 'sss'); }\n      },\n      {\n        key: 'ss',\n        regex: '[0-5][0-9]',\n        apply: function(value) { this.seconds = +value; },\n        formatter: function(date) { return dateFilter(date, 'ss'); }\n      },\n      {\n        key: 's',\n        regex: '[0-9]|[1-5][0-9]',\n        apply: function(value) { this.seconds = +value; },\n        formatter: function(date) { return dateFilter(date, 's'); }\n      },\n      {\n        key: 'a',\n        regex: $locale.DATETIME_FORMATS.AMPMS.join('|'),\n        apply: function(value) {\n          if (this.hours === 12) {\n            this.hours = 0;\n          }\n\n          if (value === 'PM') {\n            this.hours += 12;\n          }\n        },\n        formatter: function(date) { return dateFilter(date, 'a'); }\n      },\n      {\n        key: 'Z',\n        regex: '[+-]\\\\d{4}',\n        apply: function(value) {\n          var matches = value.match(/([+-])(\\d{2})(\\d{2})/),\n            sign = matches[1],\n            hours = matches[2],\n            minutes = matches[3];\n          this.hours += toInt(sign + hours);\n          this.minutes += toInt(sign + minutes);\n        },\n        formatter: function(date) {\n          return dateFilter(date, 'Z');\n        }\n      },\n      {\n        key: 'ww',\n        regex: '[0-4][0-9]|5[0-3]',\n        formatter: function(date) { return dateFilter(date, 'ww'); }\n      },\n      {\n        key: 'w',\n        regex: '[0-9]|[1-4][0-9]|5[0-3]',\n        formatter: function(date) { return dateFilter(date, 'w'); }\n      },\n      {\n        key: 'GGGG',\n        regex: $locale.DATETIME_FORMATS.ERANAMES.join('|').replace(/\\s/g, '\\\\s'),\n        formatter: function(date) { return dateFilter(date, 'GGGG'); }\n      },\n      {\n        key: 'GGG',\n        regex: $locale.DATETIME_FORMATS.ERAS.join('|'),\n        formatter: function(date) { return dateFilter(date, 'GGG'); }\n      },\n      {\n        key: 'GG',\n        regex: $locale.DATETIME_FORMATS.ERAS.join('|'),\n        formatter: function(date) { return dateFilter(date, 'GG'); }\n      },\n      {\n        key: 'G',\n        regex: $locale.DATETIME_FORMATS.ERAS.join('|'),\n        formatter: function(date) { return dateFilter(date, 'G'); }\n      }\n    ];\n\n    if (angular.version.major >= 1 && angular.version.minor > 4) {\n      formatCodeToRegex.push({\n        key: 'LLLL',\n        regex: $locale.DATETIME_FORMATS.STANDALONEMONTH.join('|'),\n        apply: function(value) { this.month = $locale.DATETIME_FORMATS.STANDALONEMONTH.indexOf(value); },\n        formatter: function(date) { return dateFilter(date, 'LLLL'); }\n      });\n    }\n  };\n\n  this.init();\n\n  function getFormatCodeToRegex(key) {\n    return filterFilter(formatCodeToRegex, {key: key}, true)[0];\n  }\n\n  this.getParser = function (key) {\n    var f = getFormatCodeToRegex(key);\n    return f && f.apply || null;\n  };\n\n  this.overrideParser = function (key, parser) {\n    var f = getFormatCodeToRegex(key);\n    if (f && angular.isFunction(parser)) {\n      this.parsers = {};\n      f.apply = parser;\n    }\n  }.bind(this);\n\n  function createParser(format) {\n    var map = [], regex = format.split('');\n\n    // check for literal values\n    var quoteIndex = format.indexOf('\\'');\n    if (quoteIndex > -1) {\n      var inLiteral = false;\n      format = format.split('');\n      for (var i = quoteIndex; i < format.length; i++) {\n        if (inLiteral) {\n          if (format[i] === '\\'') {\n            if (i + 1 < format.length && format[i+1] === '\\'') { // escaped single quote\n              format[i+1] = '$';\n              regex[i+1] = '';\n            } else { // end of literal\n              regex[i] = '';\n              inLiteral = false;\n            }\n          }\n          format[i] = '$';\n        } else {\n          if (format[i] === '\\'') { // start of literal\n            format[i] = '$';\n            regex[i] = '';\n            inLiteral = true;\n          }\n        }\n      }\n\n      format = format.join('');\n    }\n\n    angular.forEach(formatCodeToRegex, function(data) {\n      var index = format.indexOf(data.key);\n\n      if (index > -1) {\n        format = format.split('');\n\n        regex[index] = '(' + data.regex + ')';\n        format[index] = '$'; // Custom symbol to define consumed part of format\n        for (var i = index + 1, n = index + data.key.length; i < n; i++) {\n          regex[i] = '';\n          format[i] = '$';\n        }\n        format = format.join('');\n\n        map.push({\n          index: index,\n          key: data.key,\n          apply: data.apply,\n          matcher: data.regex\n        });\n      }\n    });\n\n    return {\n      regex: new RegExp('^' + regex.join('') + '$'),\n      map: orderByFilter(map, 'index')\n    };\n  }\n\n  function createFormatter(format) {\n    var formatters = [];\n    var i = 0;\n    var formatter, literalIdx;\n    while (i < format.length) {\n      if (angular.isNumber(literalIdx)) {\n        if (format.charAt(i) === '\\'') {\n          if (i + 1 >= format.length || format.charAt(i + 1) !== '\\'') {\n            formatters.push(constructLiteralFormatter(format, literalIdx, i));\n            literalIdx = null;\n          }\n        } else if (i === format.length) {\n          while (literalIdx < format.length) {\n            formatter = constructFormatterFromIdx(format, literalIdx);\n            formatters.push(formatter);\n            literalIdx = formatter.endIdx;\n          }\n        }\n\n        i++;\n        continue;\n      }\n\n      if (format.charAt(i) === '\\'') {\n        literalIdx = i;\n        i++;\n        continue;\n      }\n\n      formatter = constructFormatterFromIdx(format, i);\n\n      formatters.push(formatter.parser);\n      i = formatter.endIdx;\n    }\n\n    return formatters;\n  }\n\n  function constructLiteralFormatter(format, literalIdx, endIdx) {\n    return function() {\n      return format.substr(literalIdx + 1, endIdx - literalIdx - 1);\n    };\n  }\n\n  function constructFormatterFromIdx(format, i) {\n    var currentPosStr = format.substr(i);\n    for (var j = 0; j < formatCodeToRegex.length; j++) {\n      if (new RegExp('^' + formatCodeToRegex[j].key).test(currentPosStr)) {\n        var data = formatCodeToRegex[j];\n        return {\n          endIdx: i + data.key.length,\n          parser: data.formatter\n        };\n      }\n    }\n\n    return {\n      endIdx: i + 1,\n      parser: function() {\n        return currentPosStr.charAt(0);\n      }\n    };\n  }\n\n  this.filter = function(date, format) {\n    if (!angular.isDate(date) || isNaN(date) || !format) {\n      return '';\n    }\n\n    format = $locale.DATETIME_FORMATS[format] || format;\n\n    if ($locale.id !== localeId) {\n      this.init();\n    }\n\n    if (!this.formatters[format]) {\n      this.formatters[format] = createFormatter(format);\n    }\n\n    var formatters = this.formatters[format];\n\n    return formatters.reduce(function(str, formatter) {\n      return str + formatter(date);\n    }, '');\n  };\n\n  this.parse = function(input, format, baseDate) {\n    if (!angular.isString(input) || !format) {\n      return input;\n    }\n\n    format = $locale.DATETIME_FORMATS[format] || format;\n    format = format.replace(SPECIAL_CHARACTERS_REGEXP, '\\\\$&');\n\n    if ($locale.id !== localeId) {\n      this.init();\n    }\n\n    if (!this.parsers[format]) {\n      this.parsers[format] = createParser(format, 'apply');\n    }\n\n    var parser = this.parsers[format],\n        regex = parser.regex,\n        map = parser.map,\n        results = input.match(regex),\n        tzOffset = false;\n    if (results && results.length) {\n      var fields, dt;\n      if (angular.isDate(baseDate) && !isNaN(baseDate.getTime())) {\n        fields = {\n          year: baseDate.getFullYear(),\n          month: baseDate.getMonth(),\n          date: baseDate.getDate(),\n          hours: baseDate.getHours(),\n          minutes: baseDate.getMinutes(),\n          seconds: baseDate.getSeconds(),\n          milliseconds: baseDate.getMilliseconds()\n        };\n      } else {\n        if (baseDate) {\n          $log.warn('dateparser:', 'baseDate is not a valid date');\n        }\n        fields = { year: 1900, month: 0, date: 1, hours: 0, minutes: 0, seconds: 0, milliseconds: 0 };\n      }\n\n      for (var i = 1, n = results.length; i < n; i++) {\n        var mapper = map[i - 1];\n        if (mapper.matcher === 'Z') {\n          tzOffset = true;\n        }\n\n        if (mapper.apply) {\n          mapper.apply.call(fields, results[i]);\n        }\n      }\n\n      var datesetter = tzOffset ? Date.prototype.setUTCFullYear :\n        Date.prototype.setFullYear;\n      var timesetter = tzOffset ? Date.prototype.setUTCHours :\n        Date.prototype.setHours;\n\n      if (isValid(fields.year, fields.month, fields.date)) {\n        if (angular.isDate(baseDate) && !isNaN(baseDate.getTime()) && !tzOffset) {\n          dt = new Date(baseDate);\n          datesetter.call(dt, fields.year, fields.month, fields.date);\n          timesetter.call(dt, fields.hours, fields.minutes,\n            fields.seconds, fields.milliseconds);\n        } else {\n          dt = new Date(0);\n          datesetter.call(dt, fields.year, fields.month, fields.date);\n          timesetter.call(dt, fields.hours || 0, fields.minutes || 0,\n            fields.seconds || 0, fields.milliseconds || 0);\n        }\n      }\n\n      return dt;\n    }\n  };\n\n  // Check if date is valid for specific month (and year for February).\n  // Month: 0 = Jan, 1 = Feb, etc\n  function isValid(year, month, date) {\n    if (date < 1) {\n      return false;\n    }\n\n    if (month === 1 && date > 28) {\n      return date === 29 && (year % 4 === 0 && year % 100 !== 0 || year % 400 === 0);\n    }\n\n    if (month === 3 || month === 5 || month === 8 || month === 10) {\n      return date < 31;\n    }\n\n    return true;\n  }\n\n  function toInt(str) {\n    return parseInt(str, 10);\n  }\n\n  this.toTimezone = toTimezone;\n  this.fromTimezone = fromTimezone;\n  this.timezoneToOffset = timezoneToOffset;\n  this.addDateMinutes = addDateMinutes;\n  this.convertTimezoneToLocal = convertTimezoneToLocal;\n\n  function toTimezone(date, timezone) {\n    return date && timezone ? convertTimezoneToLocal(date, timezone) : date;\n  }\n\n  function fromTimezone(date, timezone) {\n    return date && timezone ? convertTimezoneToLocal(date, timezone, true) : date;\n  }\n\n  //https://github.com/angular/angular.js/blob/622c42169699ec07fc6daaa19fe6d224e5d2f70e/src/Angular.js#L1207\n  function timezoneToOffset(timezone, fallback) {\n    timezone = timezone.replace(/:/g, '');\n    var requestedTimezoneOffset = Date.parse('Jan 01, 1970 00:00:00 ' + timezone) / 60000;\n    return isNaN(requestedTimezoneOffset) ? fallback : requestedTimezoneOffset;\n  }\n\n  function addDateMinutes(date, minutes) {\n    date = new Date(date.getTime());\n    date.setMinutes(date.getMinutes() + minutes);\n    return date;\n  }\n\n  function convertTimezoneToLocal(date, timezone, reverse) {\n    reverse = reverse ? -1 : 1;\n    var dateTimezoneOffset = date.getTimezoneOffset();\n    var timezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n    return addDateMinutes(date, reverse * (timezoneOffset - dateTimezoneOffset));\n  }\n}]);\n\n// Avoiding use of ng-class as it creates a lot of watchers when a class is to be applied to\n// at most one element.\nangular.module('ui.bootstrap.isClass', [])\n.directive('uibIsClass', [\n         '$animate',\nfunction ($animate) {\n  //                    11111111          22222222\n  var ON_REGEXP = /^\\s*([\\s\\S]+?)\\s+on\\s+([\\s\\S]+?)\\s*$/;\n  //                    11111111           22222222\n  var IS_REGEXP = /^\\s*([\\s\\S]+?)\\s+for\\s+([\\s\\S]+?)\\s*$/;\n\n  var dataPerTracked = {};\n\n  return {\n    restrict: 'A',\n    compile: function(tElement, tAttrs) {\n      var linkedScopes = [];\n      var instances = [];\n      var expToData = {};\n      var lastActivated = null;\n      var onExpMatches = tAttrs.uibIsClass.match(ON_REGEXP);\n      var onExp = onExpMatches[2];\n      var expsStr = onExpMatches[1];\n      var exps = expsStr.split(',');\n\n      return linkFn;\n\n      function linkFn(scope, element, attrs) {\n        linkedScopes.push(scope);\n        instances.push({\n          scope: scope,\n          element: element\n        });\n\n        exps.forEach(function(exp, k) {\n          addForExp(exp, scope);\n        });\n\n        scope.$on('$destroy', removeScope);\n      }\n\n      function addForExp(exp, scope) {\n        var matches = exp.match(IS_REGEXP);\n        var clazz = scope.$eval(matches[1]);\n        var compareWithExp = matches[2];\n        var data = expToData[exp];\n        if (!data) {\n          var watchFn = function(compareWithVal) {\n            var newActivated = null;\n            instances.some(function(instance) {\n              var thisVal = instance.scope.$eval(onExp);\n              if (thisVal === compareWithVal) {\n                newActivated = instance;\n                return true;\n              }\n            });\n            if (data.lastActivated !== newActivated) {\n              if (data.lastActivated) {\n                $animate.removeClass(data.lastActivated.element, clazz);\n              }\n              if (newActivated) {\n                $animate.addClass(newActivated.element, clazz);\n              }\n              data.lastActivated = newActivated;\n            }\n          };\n          expToData[exp] = data = {\n            lastActivated: null,\n            scope: scope,\n            watchFn: watchFn,\n            compareWithExp: compareWithExp,\n            watcher: scope.$watch(compareWithExp, watchFn)\n          };\n        }\n        data.watchFn(scope.$eval(compareWithExp));\n      }\n\n      function removeScope(e) {\n        var removedScope = e.targetScope;\n        var index = linkedScopes.indexOf(removedScope);\n        linkedScopes.splice(index, 1);\n        instances.splice(index, 1);\n        if (linkedScopes.length) {\n          var newWatchScope = linkedScopes[0];\n          angular.forEach(expToData, function(data) {\n            if (data.scope === removedScope) {\n              data.watcher = newWatchScope.$watch(data.compareWithExp, data.watchFn);\n              data.scope = newWatchScope;\n            }\n          });\n        } else {\n          expToData = {};\n        }\n      }\n    }\n  };\n}]);\nangular.module('ui.bootstrap.datepicker', ['ui.bootstrap.dateparser', 'ui.bootstrap.isClass'])\n\n.value('$datepickerSuppressError', false)\n\n.value('$datepickerLiteralWarning', true)\n\n.constant('uibDatepickerConfig', {\n  datepickerMode: 'day',\n  formatDay: 'dd',\n  formatMonth: 'MMMM',\n  formatYear: 'yyyy',\n  formatDayHeader: 'EEE',\n  formatDayTitle: 'MMMM yyyy',\n  formatMonthTitle: 'yyyy',\n  maxDate: null,\n  maxMode: 'year',\n  minDate: null,\n  minMode: 'day',\n  monthColumns: 3,\n  ngModelOptions: {},\n  shortcutPropagation: false,\n  showWeeks: true,\n  yearColumns: 5,\n  yearRows: 4\n})\n\n.controller('UibDatepickerController', ['$scope', '$element', '$attrs', '$parse', '$interpolate', '$locale', '$log', 'dateFilter', 'uibDatepickerConfig', '$datepickerLiteralWarning', '$datepickerSuppressError', 'uibDateParser',\n  function($scope, $element, $attrs, $parse, $interpolate, $locale, $log, dateFilter, datepickerConfig, $datepickerLiteralWarning, $datepickerSuppressError, dateParser) {\n  var self = this,\n      ngModelCtrl = { $setViewValue: angular.noop }, // nullModelCtrl;\n      ngModelOptions = {},\n      watchListeners = [];\n\n  $element.addClass('uib-datepicker');\n  $attrs.$set('role', 'application');\n\n  if (!$scope.datepickerOptions) {\n    $scope.datepickerOptions = {};\n  }\n\n  // Modes chain\n  this.modes = ['day', 'month', 'year'];\n\n  [\n    'customClass',\n    'dateDisabled',\n    'datepickerMode',\n    'formatDay',\n    'formatDayHeader',\n    'formatDayTitle',\n    'formatMonth',\n    'formatMonthTitle',\n    'formatYear',\n    'maxDate',\n    'maxMode',\n    'minDate',\n    'minMode',\n    'monthColumns',\n    'showWeeks',\n    'shortcutPropagation',\n    'startingDay',\n    'yearColumns',\n    'yearRows'\n  ].forEach(function(key) {\n    switch (key) {\n      case 'customClass':\n      case 'dateDisabled':\n        $scope[key] = $scope.datepickerOptions[key] || angular.noop;\n        break;\n      case 'datepickerMode':\n        $scope.datepickerMode = angular.isDefined($scope.datepickerOptions.datepickerMode) ?\n          $scope.datepickerOptions.datepickerMode : datepickerConfig.datepickerMode;\n        break;\n      case 'formatDay':\n      case 'formatDayHeader':\n      case 'formatDayTitle':\n      case 'formatMonth':\n      case 'formatMonthTitle':\n      case 'formatYear':\n        self[key] = angular.isDefined($scope.datepickerOptions[key]) ?\n          $interpolate($scope.datepickerOptions[key])($scope.$parent) :\n          datepickerConfig[key];\n        break;\n      case 'monthColumns':\n      case 'showWeeks':\n      case 'shortcutPropagation':\n      case 'yearColumns':\n      case 'yearRows':\n        self[key] = angular.isDefined($scope.datepickerOptions[key]) ?\n          $scope.datepickerOptions[key] : datepickerConfig[key];\n        break;\n      case 'startingDay':\n        if (angular.isDefined($scope.datepickerOptions.startingDay)) {\n          self.startingDay = $scope.datepickerOptions.startingDay;\n        } else if (angular.isNumber(datepickerConfig.startingDay)) {\n          self.startingDay = datepickerConfig.startingDay;\n        } else {\n          self.startingDay = ($locale.DATETIME_FORMATS.FIRSTDAYOFWEEK + 8) % 7;\n        }\n\n        break;\n      case 'maxDate':\n      case 'minDate':\n        $scope.$watch('datepickerOptions.' + key, function(value) {\n          if (value) {\n            if (angular.isDate(value)) {\n              self[key] = dateParser.fromTimezone(new Date(value), ngModelOptions.getOption('timezone'));\n            } else {\n              if ($datepickerLiteralWarning) {\n                $log.warn('Literal date support has been deprecated, please switch to date object usage');\n              }\n\n              self[key] = new Date(dateFilter(value, 'medium'));\n            }\n          } else {\n            self[key] = datepickerConfig[key] ?\n              dateParser.fromTimezone(new Date(datepickerConfig[key]), ngModelOptions.getOption('timezone')) :\n              null;\n          }\n\n          self.refreshView();\n        });\n\n        break;\n      case 'maxMode':\n      case 'minMode':\n        if ($scope.datepickerOptions[key]) {\n          $scope.$watch(function() { return $scope.datepickerOptions[key]; }, function(value) {\n            self[key] = $scope[key] = angular.isDefined(value) ? value : $scope.datepickerOptions[key];\n            if (key === 'minMode' && self.modes.indexOf($scope.datepickerOptions.datepickerMode) < self.modes.indexOf(self[key]) ||\n              key === 'maxMode' && self.modes.indexOf($scope.datepickerOptions.datepickerMode) > self.modes.indexOf(self[key])) {\n              $scope.datepickerMode = self[key];\n              $scope.datepickerOptions.datepickerMode = self[key];\n            }\n          });\n        } else {\n          self[key] = $scope[key] = datepickerConfig[key] || null;\n        }\n\n        break;\n    }\n  });\n\n  $scope.uniqueId = 'datepicker-' + $scope.$id + '-' + Math.floor(Math.random() * 10000);\n\n  $scope.disabled = angular.isDefined($attrs.disabled) || false;\n  if (angular.isDefined($attrs.ngDisabled)) {\n    watchListeners.push($scope.$parent.$watch($attrs.ngDisabled, function(disabled) {\n      $scope.disabled = disabled;\n      self.refreshView();\n    }));\n  }\n\n  $scope.isActive = function(dateObject) {\n    if (self.compare(dateObject.date, self.activeDate) === 0) {\n      $scope.activeDateId = dateObject.uid;\n      return true;\n    }\n    return false;\n  };\n\n  this.init = function(ngModelCtrl_) {\n    ngModelCtrl = ngModelCtrl_;\n    ngModelOptions = extractOptions(ngModelCtrl);\n\n    if ($scope.datepickerOptions.initDate) {\n      self.activeDate = dateParser.fromTimezone($scope.datepickerOptions.initDate, ngModelOptions.getOption('timezone')) || new Date();\n      $scope.$watch('datepickerOptions.initDate', function(initDate) {\n        if (initDate && (ngModelCtrl.$isEmpty(ngModelCtrl.$modelValue) || ngModelCtrl.$invalid)) {\n          self.activeDate = dateParser.fromTimezone(initDate, ngModelOptions.getOption('timezone'));\n          self.refreshView();\n        }\n      });\n    } else {\n      self.activeDate = new Date();\n    }\n\n    var date = ngModelCtrl.$modelValue ? new Date(ngModelCtrl.$modelValue) : new Date();\n    this.activeDate = !isNaN(date) ?\n      dateParser.fromTimezone(date, ngModelOptions.getOption('timezone')) :\n      dateParser.fromTimezone(new Date(), ngModelOptions.getOption('timezone'));\n\n    ngModelCtrl.$render = function() {\n      self.render();\n    };\n  };\n\n  this.render = function() {\n    if (ngModelCtrl.$viewValue) {\n      var date = new Date(ngModelCtrl.$viewValue),\n          isValid = !isNaN(date);\n\n      if (isValid) {\n        this.activeDate = dateParser.fromTimezone(date, ngModelOptions.getOption('timezone'));\n      } else if (!$datepickerSuppressError) {\n        $log.error('Datepicker directive: \"ng-model\" value must be a Date object');\n      }\n    }\n    this.refreshView();\n  };\n\n  this.refreshView = function() {\n    if (this.element) {\n      $scope.selectedDt = null;\n      this._refreshView();\n      if ($scope.activeDt) {\n        $scope.activeDateId = $scope.activeDt.uid;\n      }\n\n      var date = ngModelCtrl.$viewValue ? new Date(ngModelCtrl.$viewValue) : null;\n      date = dateParser.fromTimezone(date, ngModelOptions.getOption('timezone'));\n      ngModelCtrl.$setValidity('dateDisabled', !date ||\n        this.element && !this.isDisabled(date));\n    }\n  };\n\n  this.createDateObject = function(date, format) {\n    var model = ngModelCtrl.$viewValue ? new Date(ngModelCtrl.$viewValue) : null;\n    model = dateParser.fromTimezone(model, ngModelOptions.getOption('timezone'));\n    var today = new Date();\n    today = dateParser.fromTimezone(today, ngModelOptions.getOption('timezone'));\n    var time = this.compare(date, today);\n    var dt = {\n      date: date,\n      label: dateParser.filter(date, format),\n      selected: model && this.compare(date, model) === 0,\n      disabled: this.isDisabled(date),\n      past: time < 0,\n      current: time === 0,\n      future: time > 0,\n      customClass: this.customClass(date) || null\n    };\n\n    if (model && this.compare(date, model) === 0) {\n      $scope.selectedDt = dt;\n    }\n\n    if (self.activeDate && this.compare(dt.date, self.activeDate) === 0) {\n      $scope.activeDt = dt;\n    }\n\n    return dt;\n  };\n\n  this.isDisabled = function(date) {\n    return $scope.disabled ||\n      this.minDate && this.compare(date, this.minDate) < 0 ||\n      this.maxDate && this.compare(date, this.maxDate) > 0 ||\n      $scope.dateDisabled && $scope.dateDisabled({date: date, mode: $scope.datepickerMode});\n  };\n\n  this.customClass = function(date) {\n    return $scope.customClass({date: date, mode: $scope.datepickerMode});\n  };\n\n  // Split array into smaller arrays\n  this.split = function(arr, size) {\n    var arrays = [];\n    while (arr.length > 0) {\n      arrays.push(arr.splice(0, size));\n    }\n    return arrays;\n  };\n\n  $scope.select = function(date) {\n    if ($scope.datepickerMode === self.minMode) {\n      var dt = ngModelCtrl.$viewValue ? dateParser.fromTimezone(new Date(ngModelCtrl.$viewValue), ngModelOptions.getOption('timezone')) : new Date(0, 0, 0, 0, 0, 0, 0);\n      dt.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());\n      dt = dateParser.toTimezone(dt, ngModelOptions.getOption('timezone'));\n      ngModelCtrl.$setViewValue(dt);\n      ngModelCtrl.$render();\n    } else {\n      self.activeDate = date;\n      setMode(self.modes[self.modes.indexOf($scope.datepickerMode) - 1]);\n\n      $scope.$emit('uib:datepicker.mode');\n    }\n\n    $scope.$broadcast('uib:datepicker.focus');\n  };\n\n  $scope.move = function(direction) {\n    var year = self.activeDate.getFullYear() + direction * (self.step.years || 0),\n        month = self.activeDate.getMonth() + direction * (self.step.months || 0);\n    self.activeDate.setFullYear(year, month, 1);\n    self.refreshView();\n  };\n\n  $scope.toggleMode = function(direction) {\n    direction = direction || 1;\n\n    if ($scope.datepickerMode === self.maxMode && direction === 1 ||\n      $scope.datepickerMode === self.minMode && direction === -1) {\n      return;\n    }\n\n    setMode(self.modes[self.modes.indexOf($scope.datepickerMode) + direction]);\n\n    $scope.$emit('uib:datepicker.mode');\n  };\n\n  // Key event mapper\n  $scope.keys = { 13: 'enter', 32: 'space', 33: 'pageup', 34: 'pagedown', 35: 'end', 36: 'home', 37: 'left', 38: 'up', 39: 'right', 40: 'down' };\n\n  var focusElement = function() {\n    self.element[0].focus();\n  };\n\n  // Listen for focus requests from popup directive\n  $scope.$on('uib:datepicker.focus', focusElement);\n\n  $scope.keydown = function(evt) {\n    var key = $scope.keys[evt.which];\n\n    if (!key || evt.shiftKey || evt.altKey || $scope.disabled) {\n      return;\n    }\n\n    evt.preventDefault();\n    if (!self.shortcutPropagation) {\n      evt.stopPropagation();\n    }\n\n    if (key === 'enter' || key === 'space') {\n      if (self.isDisabled(self.activeDate)) {\n        return; // do nothing\n      }\n      $scope.select(self.activeDate);\n    } else if (evt.ctrlKey && (key === 'up' || key === 'down')) {\n      $scope.toggleMode(key === 'up' ? 1 : -1);\n    } else {\n      self.handleKeyDown(key, evt);\n      self.refreshView();\n    }\n  };\n\n  $element.on('keydown', function(evt) {\n    $scope.$apply(function() {\n      $scope.keydown(evt);\n    });\n  });\n\n  $scope.$on('$destroy', function() {\n    //Clear all watch listeners on destroy\n    while (watchListeners.length) {\n      watchListeners.shift()();\n    }\n  });\n\n  function setMode(mode) {\n    $scope.datepickerMode = mode;\n    $scope.datepickerOptions.datepickerMode = mode;\n  }\n\n  function extractOptions(ngModelCtrl) {\n    var ngModelOptions;\n\n    if (angular.version.minor < 6) { // in angular < 1.6 $options could be missing\n      // guarantee a value\n      ngModelOptions = ngModelCtrl.$options ||\n        $scope.datepickerOptions.ngModelOptions ||\n        datepickerConfig.ngModelOptions ||\n        {};\n\n      // mimic 1.6+ api\n      ngModelOptions.getOption = function (key) {\n        return ngModelOptions[key];\n      };\n    } else { // in angular >=1.6 $options is always present\n      // ng-model-options defaults timezone to null; don't let its precedence squash a non-null value\n      var timezone = ngModelCtrl.$options.getOption('timezone') ||\n        ($scope.datepickerOptions.ngModelOptions ? $scope.datepickerOptions.ngModelOptions.timezone : null) ||\n        (datepickerConfig.ngModelOptions ? datepickerConfig.ngModelOptions.timezone : null);\n\n      // values passed to createChild override existing values\n      ngModelOptions = ngModelCtrl.$options // start with a ModelOptions instance\n        .createChild(datepickerConfig.ngModelOptions) // lowest precedence\n        .createChild($scope.datepickerOptions.ngModelOptions)\n        .createChild(ngModelCtrl.$options) // highest precedence\n        .createChild({timezone: timezone}); // to keep from squashing a non-null value\n    }\n\n    return ngModelOptions;\n  }\n}])\n\n.controller('UibDaypickerController', ['$scope', '$element', 'dateFilter', function(scope, $element, dateFilter) {\n  var DAYS_IN_MONTH = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];\n\n  this.step = { months: 1 };\n  this.element = $element;\n  function getDaysInMonth(year, month) {\n    return month === 1 && year % 4 === 0 &&\n      (year % 100 !== 0 || year % 400 === 0) ? 29 : DAYS_IN_MONTH[month];\n  }\n\n  this.init = function(ctrl) {\n    angular.extend(ctrl, this);\n    scope.showWeeks = ctrl.showWeeks;\n    ctrl.refreshView();\n  };\n\n  this.getDates = function(startDate, n) {\n    var dates = new Array(n), current = new Date(startDate), i = 0, date;\n    while (i < n) {\n      date = new Date(current);\n      dates[i++] = date;\n      current.setDate(current.getDate() + 1);\n    }\n    return dates;\n  };\n\n  this._refreshView = function() {\n    var year = this.activeDate.getFullYear(),\n      month = this.activeDate.getMonth(),\n      firstDayOfMonth = new Date(this.activeDate);\n\n    firstDayOfMonth.setFullYear(year, month, 1);\n\n    var difference = this.startingDay - firstDayOfMonth.getDay(),\n      numDisplayedFromPreviousMonth = difference > 0 ?\n        7 - difference : - difference,\n      firstDate = new Date(firstDayOfMonth);\n\n    if (numDisplayedFromPreviousMonth > 0) {\n      firstDate.setDate(-numDisplayedFromPreviousMonth + 1);\n    }\n\n    // 42 is the number of days on a six-week calendar\n    var days = this.getDates(firstDate, 42);\n    for (var i = 0; i < 42; i ++) {\n      days[i] = angular.extend(this.createDateObject(days[i], this.formatDay), {\n        secondary: days[i].getMonth() !== month,\n        uid: scope.uniqueId + '-' + i\n      });\n    }\n\n    scope.labels = new Array(7);\n    for (var j = 0; j < 7; j++) {\n      scope.labels[j] = {\n        abbr: dateFilter(days[j].date, this.formatDayHeader),\n        full: dateFilter(days[j].date, 'EEEE')\n      };\n    }\n\n    scope.title = dateFilter(this.activeDate, this.formatDayTitle);\n    scope.rows = this.split(days, 7);\n\n    if (scope.showWeeks) {\n      scope.weekNumbers = [];\n      var thursdayIndex = (4 + 7 - this.startingDay) % 7,\n          numWeeks = scope.rows.length;\n      for (var curWeek = 0; curWeek < numWeeks; curWeek++) {\n        scope.weekNumbers.push(\n          getISO8601WeekNumber(scope.rows[curWeek][thursdayIndex].date));\n      }\n    }\n  };\n\n  this.compare = function(date1, date2) {\n    var _date1 = new Date(date1.getFullYear(), date1.getMonth(), date1.getDate());\n    var _date2 = new Date(date2.getFullYear(), date2.getMonth(), date2.getDate());\n    _date1.setFullYear(date1.getFullYear());\n    _date2.setFullYear(date2.getFullYear());\n    return _date1 - _date2;\n  };\n\n  function getISO8601WeekNumber(date) {\n    var checkDate = new Date(date);\n    checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7)); // Thursday\n    var time = checkDate.getTime();\n    checkDate.setMonth(0); // Compare with Jan 1\n    checkDate.setDate(1);\n    return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;\n  }\n\n  this.handleKeyDown = function(key, evt) {\n    var date = this.activeDate.getDate();\n\n    if (key === 'left') {\n      date = date - 1;\n    } else if (key === 'up') {\n      date = date - 7;\n    } else if (key === 'right') {\n      date = date + 1;\n    } else if (key === 'down') {\n      date = date + 7;\n    } else if (key === 'pageup' || key === 'pagedown') {\n      var month = this.activeDate.getMonth() + (key === 'pageup' ? - 1 : 1);\n      this.activeDate.setMonth(month, 1);\n      date = Math.min(getDaysInMonth(this.activeDate.getFullYear(), this.activeDate.getMonth()), date);\n    } else if (key === 'home') {\n      date = 1;\n    } else if (key === 'end') {\n      date = getDaysInMonth(this.activeDate.getFullYear(), this.activeDate.getMonth());\n    }\n    this.activeDate.setDate(date);\n  };\n}])\n\n.controller('UibMonthpickerController', ['$scope', '$element', 'dateFilter', function(scope, $element, dateFilter) {\n  this.step = { years: 1 };\n  this.element = $element;\n\n  this.init = function(ctrl) {\n    angular.extend(ctrl, this);\n    ctrl.refreshView();\n  };\n\n  this._refreshView = function() {\n    var months = new Array(12),\n        year = this.activeDate.getFullYear(),\n        date;\n\n    for (var i = 0; i < 12; i++) {\n      date = new Date(this.activeDate);\n      date.setFullYear(year, i, 1);\n      months[i] = angular.extend(this.createDateObject(date, this.formatMonth), {\n        uid: scope.uniqueId + '-' + i\n      });\n    }\n\n    scope.title = dateFilter(this.activeDate, this.formatMonthTitle);\n    scope.rows = this.split(months, this.monthColumns);\n    scope.yearHeaderColspan = this.monthColumns > 3 ? this.monthColumns - 2 : 1;\n  };\n\n  this.compare = function(date1, date2) {\n    var _date1 = new Date(date1.getFullYear(), date1.getMonth());\n    var _date2 = new Date(date2.getFullYear(), date2.getMonth());\n    _date1.setFullYear(date1.getFullYear());\n    _date2.setFullYear(date2.getFullYear());\n    return _date1 - _date2;\n  };\n\n  this.handleKeyDown = function(key, evt) {\n    var date = this.activeDate.getMonth();\n\n    if (key === 'left') {\n      date = date - 1;\n    } else if (key === 'up') {\n      date = date - this.monthColumns;\n    } else if (key === 'right') {\n      date = date + 1;\n    } else if (key === 'down') {\n      date = date + this.monthColumns;\n    } else if (key === 'pageup' || key === 'pagedown') {\n      var year = this.activeDate.getFullYear() + (key === 'pageup' ? - 1 : 1);\n      this.activeDate.setFullYear(year);\n    } else if (key === 'home') {\n      date = 0;\n    } else if (key === 'end') {\n      date = 11;\n    }\n    this.activeDate.setMonth(date);\n  };\n}])\n\n.controller('UibYearpickerController', ['$scope', '$element', 'dateFilter', function(scope, $element, dateFilter) {\n  var columns, range;\n  this.element = $element;\n\n  function getStartingYear(year) {\n    return parseInt((year - 1) / range, 10) * range + 1;\n  }\n\n  this.yearpickerInit = function() {\n    columns = this.yearColumns;\n    range = this.yearRows * columns;\n    this.step = { years: range };\n  };\n\n  this._refreshView = function() {\n    var years = new Array(range), date;\n\n    for (var i = 0, start = getStartingYear(this.activeDate.getFullYear()); i < range; i++) {\n      date = new Date(this.activeDate);\n      date.setFullYear(start + i, 0, 1);\n      years[i] = angular.extend(this.createDateObject(date, this.formatYear), {\n        uid: scope.uniqueId + '-' + i\n      });\n    }\n\n    scope.title = [years[0].label, years[range - 1].label].join(' - ');\n    scope.rows = this.split(years, columns);\n    scope.columns = columns;\n  };\n\n  this.compare = function(date1, date2) {\n    return date1.getFullYear() - date2.getFullYear();\n  };\n\n  this.handleKeyDown = function(key, evt) {\n    var date = this.activeDate.getFullYear();\n\n    if (key === 'left') {\n      date = date - 1;\n    } else if (key === 'up') {\n      date = date - columns;\n    } else if (key === 'right') {\n      date = date + 1;\n    } else if (key === 'down') {\n      date = date + columns;\n    } else if (key === 'pageup' || key === 'pagedown') {\n      date += (key === 'pageup' ? - 1 : 1) * range;\n    } else if (key === 'home') {\n      date = getStartingYear(this.activeDate.getFullYear());\n    } else if (key === 'end') {\n      date = getStartingYear(this.activeDate.getFullYear()) + range - 1;\n    }\n    this.activeDate.setFullYear(date);\n  };\n}])\n\n.directive('uibDatepicker', function() {\n  return {\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/datepicker/datepicker.html';\n    },\n    scope: {\n      datepickerOptions: '=?'\n    },\n    require: ['uibDatepicker', '^ngModel'],\n    restrict: 'A',\n    controller: 'UibDatepickerController',\n    controllerAs: 'datepicker',\n    link: function(scope, element, attrs, ctrls) {\n      var datepickerCtrl = ctrls[0], ngModelCtrl = ctrls[1];\n\n      datepickerCtrl.init(ngModelCtrl);\n    }\n  };\n})\n\n.directive('uibDaypicker', function() {\n  return {\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/datepicker/day.html';\n    },\n    require: ['^uibDatepicker', 'uibDaypicker'],\n    restrict: 'A',\n    controller: 'UibDaypickerController',\n    link: function(scope, element, attrs, ctrls) {\n      var datepickerCtrl = ctrls[0],\n        daypickerCtrl = ctrls[1];\n\n      daypickerCtrl.init(datepickerCtrl);\n    }\n  };\n})\n\n.directive('uibMonthpicker', function() {\n  return {\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/datepicker/month.html';\n    },\n    require: ['^uibDatepicker', 'uibMonthpicker'],\n    restrict: 'A',\n    controller: 'UibMonthpickerController',\n    link: function(scope, element, attrs, ctrls) {\n      var datepickerCtrl = ctrls[0],\n        monthpickerCtrl = ctrls[1];\n\n      monthpickerCtrl.init(datepickerCtrl);\n    }\n  };\n})\n\n.directive('uibYearpicker', function() {\n  return {\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/datepicker/year.html';\n    },\n    require: ['^uibDatepicker', 'uibYearpicker'],\n    restrict: 'A',\n    controller: 'UibYearpickerController',\n    link: function(scope, element, attrs, ctrls) {\n      var ctrl = ctrls[0];\n      angular.extend(ctrl, ctrls[1]);\n      ctrl.yearpickerInit();\n\n      ctrl.refreshView();\n    }\n  };\n});\n\nangular.module('ui.bootstrap.position', [])\n\n/**\n * A set of utility methods for working with the DOM.\n * It is meant to be used where we need to absolute-position elements in\n * relation to another element (this is the case for tooltips, popovers,\n * typeahead suggestions etc.).\n */\n  .factory('$uibPosition', ['$document', '$window', function($document, $window) {\n    /**\n     * Used by scrollbarWidth() function to cache scrollbar's width.\n     * Do not access this variable directly, use scrollbarWidth() instead.\n     */\n    var SCROLLBAR_WIDTH;\n    /**\n     * scrollbar on body and html element in IE and Edge overlay\n     * content and should be considered 0 width.\n     */\n    var BODY_SCROLLBAR_WIDTH;\n    var OVERFLOW_REGEX = {\n      normal: /(auto|scroll)/,\n      hidden: /(auto|scroll|hidden)/\n    };\n    var PLACEMENT_REGEX = {\n      auto: /\\s?auto?\\s?/i,\n      primary: /^(top|bottom|left|right)$/,\n      secondary: /^(top|bottom|left|right|center)$/,\n      vertical: /^(top|bottom)$/\n    };\n    var BODY_REGEX = /(HTML|BODY)/;\n\n    return {\n\n      /**\n       * Provides a raw DOM element from a jQuery/jQLite element.\n       *\n       * @param {element} elem - The element to convert.\n       *\n       * @returns {element} A HTML element.\n       */\n      getRawNode: function(elem) {\n        return elem.nodeName ? elem : elem[0] || elem;\n      },\n\n      /**\n       * Provides a parsed number for a style property.  Strips\n       * units and casts invalid numbers to 0.\n       *\n       * @param {string} value - The style value to parse.\n       *\n       * @returns {number} A valid number.\n       */\n      parseStyle: function(value) {\n        value = parseFloat(value);\n        return isFinite(value) ? value : 0;\n      },\n\n      /**\n       * Provides the closest positioned ancestor.\n       *\n       * @param {element} element - The element to get the offest parent for.\n       *\n       * @returns {element} The closest positioned ancestor.\n       */\n      offsetParent: function(elem) {\n        elem = this.getRawNode(elem);\n\n        var offsetParent = elem.offsetParent || $document[0].documentElement;\n\n        function isStaticPositioned(el) {\n          return ($window.getComputedStyle(el).position || 'static') === 'static';\n        }\n\n        while (offsetParent && offsetParent !== $document[0].documentElement && isStaticPositioned(offsetParent)) {\n          offsetParent = offsetParent.offsetParent;\n        }\n\n        return offsetParent || $document[0].documentElement;\n      },\n\n      /**\n       * Provides the scrollbar width, concept from TWBS measureScrollbar()\n       * function in https://github.com/twbs/bootstrap/blob/master/js/modal.js\n       * In IE and Edge, scollbar on body and html element overlay and should\n       * return a width of 0.\n       *\n       * @returns {number} The width of the browser scollbar.\n       */\n      scrollbarWidth: function(isBody) {\n        if (isBody) {\n          if (angular.isUndefined(BODY_SCROLLBAR_WIDTH)) {\n            var bodyElem = $document.find('body');\n            bodyElem.addClass('uib-position-body-scrollbar-measure');\n            BODY_SCROLLBAR_WIDTH = $window.innerWidth - bodyElem[0].clientWidth;\n            BODY_SCROLLBAR_WIDTH = isFinite(BODY_SCROLLBAR_WIDTH) ? BODY_SCROLLBAR_WIDTH : 0;\n            bodyElem.removeClass('uib-position-body-scrollbar-measure');\n          }\n          return BODY_SCROLLBAR_WIDTH;\n        }\n\n        if (angular.isUndefined(SCROLLBAR_WIDTH)) {\n          var scrollElem = angular.element('<div class=\"uib-position-scrollbar-measure\"></div>');\n          $document.find('body').append(scrollElem);\n          SCROLLBAR_WIDTH = scrollElem[0].offsetWidth - scrollElem[0].clientWidth;\n          SCROLLBAR_WIDTH = isFinite(SCROLLBAR_WIDTH) ? SCROLLBAR_WIDTH : 0;\n          scrollElem.remove();\n        }\n\n        return SCROLLBAR_WIDTH;\n      },\n\n      /**\n       * Provides the padding required on an element to replace the scrollbar.\n       *\n       * @returns {object} An object with the following properties:\n       *   <ul>\n       *     <li>**scrollbarWidth**: the width of the scrollbar</li>\n       *     <li>**widthOverflow**: whether the the width is overflowing</li>\n       *     <li>**right**: the amount of right padding on the element needed to replace the scrollbar</li>\n       *     <li>**rightOriginal**: the amount of right padding currently on the element</li>\n       *     <li>**heightOverflow**: whether the the height is overflowing</li>\n       *     <li>**bottom**: the amount of bottom padding on the element needed to replace the scrollbar</li>\n       *     <li>**bottomOriginal**: the amount of bottom padding currently on the element</li>\n       *   </ul>\n       */\n      scrollbarPadding: function(elem) {\n        elem = this.getRawNode(elem);\n\n        var elemStyle = $window.getComputedStyle(elem);\n        var paddingRight = this.parseStyle(elemStyle.paddingRight);\n        var paddingBottom = this.parseStyle(elemStyle.paddingBottom);\n        var scrollParent = this.scrollParent(elem, false, true);\n        var scrollbarWidth = this.scrollbarWidth(BODY_REGEX.test(scrollParent.tagName));\n\n        return {\n          scrollbarWidth: scrollbarWidth,\n          widthOverflow: scrollParent.scrollWidth > scrollParent.clientWidth,\n          right: paddingRight + scrollbarWidth,\n          originalRight: paddingRight,\n          heightOverflow: scrollParent.scrollHeight > scrollParent.clientHeight,\n          bottom: paddingBottom + scrollbarWidth,\n          originalBottom: paddingBottom\n         };\n      },\n\n      /**\n       * Checks to see if the element is scrollable.\n       *\n       * @param {element} elem - The element to check.\n       * @param {boolean=} [includeHidden=false] - Should scroll style of 'hidden' be considered,\n       *   default is false.\n       *\n       * @returns {boolean} Whether the element is scrollable.\n       */\n      isScrollable: function(elem, includeHidden) {\n        elem = this.getRawNode(elem);\n\n        var overflowRegex = includeHidden ? OVERFLOW_REGEX.hidden : OVERFLOW_REGEX.normal;\n        var elemStyle = $window.getComputedStyle(elem);\n        return overflowRegex.test(elemStyle.overflow + elemStyle.overflowY + elemStyle.overflowX);\n      },\n\n      /**\n       * Provides the closest scrollable ancestor.\n       * A port of the jQuery UI scrollParent method:\n       * https://github.com/jquery/jquery-ui/blob/master/ui/scroll-parent.js\n       *\n       * @param {element} elem - The element to find the scroll parent of.\n       * @param {boolean=} [includeHidden=false] - Should scroll style of 'hidden' be considered,\n       *   default is false.\n       * @param {boolean=} [includeSelf=false] - Should the element being passed be\n       * included in the scrollable llokup.\n       *\n       * @returns {element} A HTML element.\n       */\n      scrollParent: function(elem, includeHidden, includeSelf) {\n        elem = this.getRawNode(elem);\n\n        var overflowRegex = includeHidden ? OVERFLOW_REGEX.hidden : OVERFLOW_REGEX.normal;\n        var documentEl = $document[0].documentElement;\n        var elemStyle = $window.getComputedStyle(elem);\n        if (includeSelf && overflowRegex.test(elemStyle.overflow + elemStyle.overflowY + elemStyle.overflowX)) {\n          return elem;\n        }\n        var excludeStatic = elemStyle.position === 'absolute';\n        var scrollParent = elem.parentElement || documentEl;\n\n        if (scrollParent === documentEl || elemStyle.position === 'fixed') {\n          return documentEl;\n        }\n\n        while (scrollParent.parentElement && scrollParent !== documentEl) {\n          var spStyle = $window.getComputedStyle(scrollParent);\n          if (excludeStatic && spStyle.position !== 'static') {\n            excludeStatic = false;\n          }\n\n          if (!excludeStatic && overflowRegex.test(spStyle.overflow + spStyle.overflowY + spStyle.overflowX)) {\n            break;\n          }\n          scrollParent = scrollParent.parentElement;\n        }\n\n        return scrollParent;\n      },\n\n      /**\n       * Provides read-only equivalent of jQuery's position function:\n       * http://api.jquery.com/position/ - distance to closest positioned\n       * ancestor.  Does not account for margins by default like jQuery position.\n       *\n       * @param {element} elem - The element to caclulate the position on.\n       * @param {boolean=} [includeMargins=false] - Should margins be accounted\n       * for, default is false.\n       *\n       * @returns {object} An object with the following properties:\n       *   <ul>\n       *     <li>**width**: the width of the element</li>\n       *     <li>**height**: the height of the element</li>\n       *     <li>**top**: distance to top edge of offset parent</li>\n       *     <li>**left**: distance to left edge of offset parent</li>\n       *   </ul>\n       */\n      position: function(elem, includeMagins) {\n        elem = this.getRawNode(elem);\n\n        var elemOffset = this.offset(elem);\n        if (includeMagins) {\n          var elemStyle = $window.getComputedStyle(elem);\n          elemOffset.top -= this.parseStyle(elemStyle.marginTop);\n          elemOffset.left -= this.parseStyle(elemStyle.marginLeft);\n        }\n        var parent = this.offsetParent(elem);\n        var parentOffset = {top: 0, left: 0};\n\n        if (parent !== $document[0].documentElement) {\n          parentOffset = this.offset(parent);\n          parentOffset.top += parent.clientTop - parent.scrollTop;\n          parentOffset.left += parent.clientLeft - parent.scrollLeft;\n        }\n\n        return {\n          width: Math.round(angular.isNumber(elemOffset.width) ? elemOffset.width : elem.offsetWidth),\n          height: Math.round(angular.isNumber(elemOffset.height) ? elemOffset.height : elem.offsetHeight),\n          top: Math.round(elemOffset.top - parentOffset.top),\n          left: Math.round(elemOffset.left - parentOffset.left)\n        };\n      },\n\n      /**\n       * Provides read-only equivalent of jQuery's offset function:\n       * http://api.jquery.com/offset/ - distance to viewport.  Does\n       * not account for borders, margins, or padding on the body\n       * element.\n       *\n       * @param {element} elem - The element to calculate the offset on.\n       *\n       * @returns {object} An object with the following properties:\n       *   <ul>\n       *     <li>**width**: the width of the element</li>\n       *     <li>**height**: the height of the element</li>\n       *     <li>**top**: distance to top edge of viewport</li>\n       *     <li>**right**: distance to bottom edge of viewport</li>\n       *   </ul>\n       */\n      offset: function(elem) {\n        elem = this.getRawNode(elem);\n\n        var elemBCR = elem.getBoundingClientRect();\n        return {\n          width: Math.round(angular.isNumber(elemBCR.width) ? elemBCR.width : elem.offsetWidth),\n          height: Math.round(angular.isNumber(elemBCR.height) ? elemBCR.height : elem.offsetHeight),\n          top: Math.round(elemBCR.top + ($window.pageYOffset || $document[0].documentElement.scrollTop)),\n          left: Math.round(elemBCR.left + ($window.pageXOffset || $document[0].documentElement.scrollLeft))\n        };\n      },\n\n      /**\n       * Provides offset distance to the closest scrollable ancestor\n       * or viewport.  Accounts for border and scrollbar width.\n       *\n       * Right and bottom dimensions represent the distance to the\n       * respective edge of the viewport element.  If the element\n       * edge extends beyond the viewport, a negative value will be\n       * reported.\n       *\n       * @param {element} elem - The element to get the viewport offset for.\n       * @param {boolean=} [useDocument=false] - Should the viewport be the document element instead\n       * of the first scrollable element, default is false.\n       * @param {boolean=} [includePadding=true] - Should the padding on the offset parent element\n       * be accounted for, default is true.\n       *\n       * @returns {object} An object with the following properties:\n       *   <ul>\n       *     <li>**top**: distance to the top content edge of viewport element</li>\n       *     <li>**bottom**: distance to the bottom content edge of viewport element</li>\n       *     <li>**left**: distance to the left content edge of viewport element</li>\n       *     <li>**right**: distance to the right content edge of viewport element</li>\n       *   </ul>\n       */\n      viewportOffset: function(elem, useDocument, includePadding) {\n        elem = this.getRawNode(elem);\n        includePadding = includePadding !== false ? true : false;\n\n        var elemBCR = elem.getBoundingClientRect();\n        var offsetBCR = {top: 0, left: 0, bottom: 0, right: 0};\n\n        var offsetParent = useDocument ? $document[0].documentElement : this.scrollParent(elem);\n        var offsetParentBCR = offsetParent.getBoundingClientRect();\n\n        offsetBCR.top = offsetParentBCR.top + offsetParent.clientTop;\n        offsetBCR.left = offsetParentBCR.left + offsetParent.clientLeft;\n        if (offsetParent === $document[0].documentElement) {\n          offsetBCR.top += $window.pageYOffset;\n          offsetBCR.left += $window.pageXOffset;\n        }\n        offsetBCR.bottom = offsetBCR.top + offsetParent.clientHeight;\n        offsetBCR.right = offsetBCR.left + offsetParent.clientWidth;\n\n        if (includePadding) {\n          var offsetParentStyle = $window.getComputedStyle(offsetParent);\n          offsetBCR.top += this.parseStyle(offsetParentStyle.paddingTop);\n          offsetBCR.bottom -= this.parseStyle(offsetParentStyle.paddingBottom);\n          offsetBCR.left += this.parseStyle(offsetParentStyle.paddingLeft);\n          offsetBCR.right -= this.parseStyle(offsetParentStyle.paddingRight);\n        }\n\n        return {\n          top: Math.round(elemBCR.top - offsetBCR.top),\n          bottom: Math.round(offsetBCR.bottom - elemBCR.bottom),\n          left: Math.round(elemBCR.left - offsetBCR.left),\n          right: Math.round(offsetBCR.right - elemBCR.right)\n        };\n      },\n\n      /**\n       * Provides an array of placement values parsed from a placement string.\n       * Along with the 'auto' indicator, supported placement strings are:\n       *   <ul>\n       *     <li>top: element on top, horizontally centered on host element.</li>\n       *     <li>top-left: element on top, left edge aligned with host element left edge.</li>\n       *     <li>top-right: element on top, lerightft edge aligned with host element right edge.</li>\n       *     <li>bottom: element on bottom, horizontally centered on host element.</li>\n       *     <li>bottom-left: element on bottom, left edge aligned with host element left edge.</li>\n       *     <li>bottom-right: element on bottom, right edge aligned with host element right edge.</li>\n       *     <li>left: element on left, vertically centered on host element.</li>\n       *     <li>left-top: element on left, top edge aligned with host element top edge.</li>\n       *     <li>left-bottom: element on left, bottom edge aligned with host element bottom edge.</li>\n       *     <li>right: element on right, vertically centered on host element.</li>\n       *     <li>right-top: element on right, top edge aligned with host element top edge.</li>\n       *     <li>right-bottom: element on right, bottom edge aligned with host element bottom edge.</li>\n       *   </ul>\n       * A placement string with an 'auto' indicator is expected to be\n       * space separated from the placement, i.e: 'auto bottom-left'  If\n       * the primary and secondary placement values do not match 'top,\n       * bottom, left, right' then 'top' will be the primary placement and\n       * 'center' will be the secondary placement.  If 'auto' is passed, true\n       * will be returned as the 3rd value of the array.\n       *\n       * @param {string} placement - The placement string to parse.\n       *\n       * @returns {array} An array with the following values\n       * <ul>\n       *   <li>**[0]**: The primary placement.</li>\n       *   <li>**[1]**: The secondary placement.</li>\n       *   <li>**[2]**: If auto is passed: true, else undefined.</li>\n       * </ul>\n       */\n      parsePlacement: function(placement) {\n        var autoPlace = PLACEMENT_REGEX.auto.test(placement);\n        if (autoPlace) {\n          placement = placement.replace(PLACEMENT_REGEX.auto, '');\n        }\n\n        placement = placement.split('-');\n\n        placement[0] = placement[0] || 'top';\n        if (!PLACEMENT_REGEX.primary.test(placement[0])) {\n          placement[0] = 'top';\n        }\n\n        placement[1] = placement[1] || 'center';\n        if (!PLACEMENT_REGEX.secondary.test(placement[1])) {\n          placement[1] = 'center';\n        }\n\n        if (autoPlace) {\n          placement[2] = true;\n        } else {\n          placement[2] = false;\n        }\n\n        return placement;\n      },\n\n      /**\n       * Provides coordinates for an element to be positioned relative to\n       * another element.  Passing 'auto' as part of the placement parameter\n       * will enable smart placement - where the element fits. i.e:\n       * 'auto left-top' will check to see if there is enough space to the left\n       * of the hostElem to fit the targetElem, if not place right (same for secondary\n       * top placement).  Available space is calculated using the viewportOffset\n       * function.\n       *\n       * @param {element} hostElem - The element to position against.\n       * @param {element} targetElem - The element to position.\n       * @param {string=} [placement=top] - The placement for the targetElem,\n       *   default is 'top'. 'center' is assumed as secondary placement for\n       *   'top', 'left', 'right', and 'bottom' placements.  Available placements are:\n       *   <ul>\n       *     <li>top</li>\n       *     <li>top-right</li>\n       *     <li>top-left</li>\n       *     <li>bottom</li>\n       *     <li>bottom-left</li>\n       *     <li>bottom-right</li>\n       *     <li>left</li>\n       *     <li>left-top</li>\n       *     <li>left-bottom</li>\n       *     <li>right</li>\n       *     <li>right-top</li>\n       *     <li>right-bottom</li>\n       *   </ul>\n       * @param {boolean=} [appendToBody=false] - Should the top and left values returned\n       *   be calculated from the body element, default is false.\n       *\n       * @returns {object} An object with the following properties:\n       *   <ul>\n       *     <li>**top**: Value for targetElem top.</li>\n       *     <li>**left**: Value for targetElem left.</li>\n       *     <li>**placement**: The resolved placement.</li>\n       *   </ul>\n       */\n      positionElements: function(hostElem, targetElem, placement, appendToBody) {\n        hostElem = this.getRawNode(hostElem);\n        targetElem = this.getRawNode(targetElem);\n\n        // need to read from prop to support tests.\n        var targetWidth = angular.isDefined(targetElem.offsetWidth) ? targetElem.offsetWidth : targetElem.prop('offsetWidth');\n        var targetHeight = angular.isDefined(targetElem.offsetHeight) ? targetElem.offsetHeight : targetElem.prop('offsetHeight');\n\n        placement = this.parsePlacement(placement);\n\n        var hostElemPos = appendToBody ? this.offset(hostElem) : this.position(hostElem);\n        var targetElemPos = {top: 0, left: 0, placement: ''};\n\n        if (placement[2]) {\n          var viewportOffset = this.viewportOffset(hostElem, appendToBody);\n\n          var targetElemStyle = $window.getComputedStyle(targetElem);\n          var adjustedSize = {\n            width: targetWidth + Math.round(Math.abs(this.parseStyle(targetElemStyle.marginLeft) + this.parseStyle(targetElemStyle.marginRight))),\n            height: targetHeight + Math.round(Math.abs(this.parseStyle(targetElemStyle.marginTop) + this.parseStyle(targetElemStyle.marginBottom)))\n          };\n\n          placement[0] = placement[0] === 'top' && adjustedSize.height > viewportOffset.top && adjustedSize.height <= viewportOffset.bottom ? 'bottom' :\n                         placement[0] === 'bottom' && adjustedSize.height > viewportOffset.bottom && adjustedSize.height <= viewportOffset.top ? 'top' :\n                         placement[0] === 'left' && adjustedSize.width > viewportOffset.left && adjustedSize.width <= viewportOffset.right ? 'right' :\n                         placement[0] === 'right' && adjustedSize.width > viewportOffset.right && adjustedSize.width <= viewportOffset.left ? 'left' :\n                         placement[0];\n\n          placement[1] = placement[1] === 'top' && adjustedSize.height - hostElemPos.height > viewportOffset.bottom && adjustedSize.height - hostElemPos.height <= viewportOffset.top ? 'bottom' :\n                         placement[1] === 'bottom' && adjustedSize.height - hostElemPos.height > viewportOffset.top && adjustedSize.height - hostElemPos.height <= viewportOffset.bottom ? 'top' :\n                         placement[1] === 'left' && adjustedSize.width - hostElemPos.width > viewportOffset.right && adjustedSize.width - hostElemPos.width <= viewportOffset.left ? 'right' :\n                         placement[1] === 'right' && adjustedSize.width - hostElemPos.width > viewportOffset.left && adjustedSize.width - hostElemPos.width <= viewportOffset.right ? 'left' :\n                         placement[1];\n\n          if (placement[1] === 'center') {\n            if (PLACEMENT_REGEX.vertical.test(placement[0])) {\n              var xOverflow = hostElemPos.width / 2 - targetWidth / 2;\n              if (viewportOffset.left + xOverflow < 0 && adjustedSize.width - hostElemPos.width <= viewportOffset.right) {\n                placement[1] = 'left';\n              } else if (viewportOffset.right + xOverflow < 0 && adjustedSize.width - hostElemPos.width <= viewportOffset.left) {\n                placement[1] = 'right';\n              }\n            } else {\n              var yOverflow = hostElemPos.height / 2 - adjustedSize.height / 2;\n              if (viewportOffset.top + yOverflow < 0 && adjustedSize.height - hostElemPos.height <= viewportOffset.bottom) {\n                placement[1] = 'top';\n              } else if (viewportOffset.bottom + yOverflow < 0 && adjustedSize.height - hostElemPos.height <= viewportOffset.top) {\n                placement[1] = 'bottom';\n              }\n            }\n          }\n        }\n\n        switch (placement[0]) {\n          case 'top':\n            targetElemPos.top = hostElemPos.top - targetHeight;\n            break;\n          case 'bottom':\n            targetElemPos.top = hostElemPos.top + hostElemPos.height;\n            break;\n          case 'left':\n            targetElemPos.left = hostElemPos.left - targetWidth;\n            break;\n          case 'right':\n            targetElemPos.left = hostElemPos.left + hostElemPos.width;\n            break;\n        }\n\n        switch (placement[1]) {\n          case 'top':\n            targetElemPos.top = hostElemPos.top;\n            break;\n          case 'bottom':\n            targetElemPos.top = hostElemPos.top + hostElemPos.height - targetHeight;\n            break;\n          case 'left':\n            targetElemPos.left = hostElemPos.left;\n            break;\n          case 'right':\n            targetElemPos.left = hostElemPos.left + hostElemPos.width - targetWidth;\n            break;\n          case 'center':\n            if (PLACEMENT_REGEX.vertical.test(placement[0])) {\n              targetElemPos.left = hostElemPos.left + hostElemPos.width / 2 - targetWidth / 2;\n            } else {\n              targetElemPos.top = hostElemPos.top + hostElemPos.height / 2 - targetHeight / 2;\n            }\n            break;\n        }\n\n        targetElemPos.top = Math.round(targetElemPos.top);\n        targetElemPos.left = Math.round(targetElemPos.left);\n        targetElemPos.placement = placement[1] === 'center' ? placement[0] : placement[0] + '-' + placement[1];\n\n        return targetElemPos;\n      },\n\n      /**\n       * Provides a way to adjust the top positioning after first\n       * render to correctly align element to top after content\n       * rendering causes resized element height\n       *\n       * @param {array} placementClasses - The array of strings of classes\n       * element should have.\n       * @param {object} containerPosition - The object with container\n       * position information\n       * @param {number} initialHeight - The initial height for the elem.\n       * @param {number} currentHeight - The current height for the elem.\n       */\n      adjustTop: function(placementClasses, containerPosition, initialHeight, currentHeight) {\n        if (placementClasses.indexOf('top') !== -1 && initialHeight !== currentHeight) {\n          return {\n            top: containerPosition.top - currentHeight + 'px'\n          };\n        }\n      },\n\n      /**\n       * Provides a way for positioning tooltip & dropdown\n       * arrows when using placement options beyond the standard\n       * left, right, top, or bottom.\n       *\n       * @param {element} elem - The tooltip/dropdown element.\n       * @param {string} placement - The placement for the elem.\n       */\n      positionArrow: function(elem, placement) {\n        elem = this.getRawNode(elem);\n\n        var innerElem = elem.querySelector('.tooltip-inner, .popover-inner');\n        if (!innerElem) {\n          return;\n        }\n\n        var isTooltip = angular.element(innerElem).hasClass('tooltip-inner');\n\n        var arrowElem = isTooltip ? elem.querySelector('.tooltip-arrow') : elem.querySelector('.arrow');\n        if (!arrowElem) {\n          return;\n        }\n\n        var arrowCss = {\n          top: '',\n          bottom: '',\n          left: '',\n          right: ''\n        };\n\n        placement = this.parsePlacement(placement);\n        if (placement[1] === 'center') {\n          // no adjustment necessary - just reset styles\n          angular.element(arrowElem).css(arrowCss);\n          return;\n        }\n\n        var borderProp = 'border-' + placement[0] + '-width';\n        var borderWidth = $window.getComputedStyle(arrowElem)[borderProp];\n\n        var borderRadiusProp = 'border-';\n        if (PLACEMENT_REGEX.vertical.test(placement[0])) {\n          borderRadiusProp += placement[0] + '-' + placement[1];\n        } else {\n          borderRadiusProp += placement[1] + '-' + placement[0];\n        }\n        borderRadiusProp += '-radius';\n        var borderRadius = $window.getComputedStyle(isTooltip ? innerElem : elem)[borderRadiusProp];\n\n        switch (placement[0]) {\n          case 'top':\n            arrowCss.bottom = isTooltip ? '0' : '-' + borderWidth;\n            break;\n          case 'bottom':\n            arrowCss.top = isTooltip ? '0' : '-' + borderWidth;\n            break;\n          case 'left':\n            arrowCss.right = isTooltip ? '0' : '-' + borderWidth;\n            break;\n          case 'right':\n            arrowCss.left = isTooltip ? '0' : '-' + borderWidth;\n            break;\n        }\n\n        arrowCss[placement[1]] = borderRadius;\n\n        angular.element(arrowElem).css(arrowCss);\n      }\n    };\n  }]);\n\nangular.module('ui.bootstrap.datepickerPopup', ['ui.bootstrap.datepicker', 'ui.bootstrap.position'])\n\n.value('$datepickerPopupLiteralWarning', true)\n\n.constant('uibDatepickerPopupConfig', {\n  altInputFormats: [],\n  appendToBody: false,\n  clearText: 'Clear',\n  closeOnDateSelection: true,\n  closeText: 'Done',\n  currentText: 'Today',\n  datepickerPopup: 'yyyy-MM-dd',\n  datepickerPopupTemplateUrl: 'uib/template/datepickerPopup/popup.html',\n  datepickerTemplateUrl: 'uib/template/datepicker/datepicker.html',\n  html5Types: {\n    date: 'yyyy-MM-dd',\n    'datetime-local': 'yyyy-MM-ddTHH:mm:ss.sss',\n    'month': 'yyyy-MM'\n  },\n  onOpenFocus: true,\n  showButtonBar: true,\n  placement: 'auto bottom-left'\n})\n\n.controller('UibDatepickerPopupController', ['$scope', '$element', '$attrs', '$compile', '$log', '$parse', '$window', '$document', '$rootScope', '$uibPosition', 'dateFilter', 'uibDateParser', 'uibDatepickerPopupConfig', '$timeout', 'uibDatepickerConfig', '$datepickerPopupLiteralWarning',\nfunction($scope, $element, $attrs, $compile, $log, $parse, $window, $document, $rootScope, $position, dateFilter, dateParser, datepickerPopupConfig, $timeout, datepickerConfig, $datepickerPopupLiteralWarning) {\n  var cache = {},\n    isHtml5DateInput = false;\n  var dateFormat, closeOnDateSelection, appendToBody, onOpenFocus,\n    datepickerPopupTemplateUrl, datepickerTemplateUrl, popupEl, datepickerEl, scrollParentEl,\n    ngModel, ngModelOptions, $popup, altInputFormats, watchListeners = [];\n\n  this.init = function(_ngModel_) {\n    ngModel = _ngModel_;\n    ngModelOptions = extractOptions(ngModel);\n    closeOnDateSelection = angular.isDefined($attrs.closeOnDateSelection) ?\n      $scope.$parent.$eval($attrs.closeOnDateSelection) :\n      datepickerPopupConfig.closeOnDateSelection;\n    appendToBody = angular.isDefined($attrs.datepickerAppendToBody) ?\n      $scope.$parent.$eval($attrs.datepickerAppendToBody) :\n      datepickerPopupConfig.appendToBody;\n    onOpenFocus = angular.isDefined($attrs.onOpenFocus) ?\n      $scope.$parent.$eval($attrs.onOpenFocus) : datepickerPopupConfig.onOpenFocus;\n    datepickerPopupTemplateUrl = angular.isDefined($attrs.datepickerPopupTemplateUrl) ?\n      $attrs.datepickerPopupTemplateUrl :\n      datepickerPopupConfig.datepickerPopupTemplateUrl;\n    datepickerTemplateUrl = angular.isDefined($attrs.datepickerTemplateUrl) ?\n      $attrs.datepickerTemplateUrl : datepickerPopupConfig.datepickerTemplateUrl;\n    altInputFormats = angular.isDefined($attrs.altInputFormats) ?\n      $scope.$parent.$eval($attrs.altInputFormats) :\n      datepickerPopupConfig.altInputFormats;\n\n    $scope.showButtonBar = angular.isDefined($attrs.showButtonBar) ?\n      $scope.$parent.$eval($attrs.showButtonBar) :\n      datepickerPopupConfig.showButtonBar;\n\n    if (datepickerPopupConfig.html5Types[$attrs.type]) {\n      dateFormat = datepickerPopupConfig.html5Types[$attrs.type];\n      isHtml5DateInput = true;\n    } else {\n      dateFormat = $attrs.uibDatepickerPopup || datepickerPopupConfig.datepickerPopup;\n      $attrs.$observe('uibDatepickerPopup', function(value, oldValue) {\n        var newDateFormat = value || datepickerPopupConfig.datepickerPopup;\n        // Invalidate the $modelValue to ensure that formatters re-run\n        // FIXME: Refactor when PR is merged: https://github.com/angular/angular.js/pull/10764\n        if (newDateFormat !== dateFormat) {\n          dateFormat = newDateFormat;\n          ngModel.$modelValue = null;\n\n          if (!dateFormat) {\n            throw new Error('uibDatepickerPopup must have a date format specified.');\n          }\n        }\n      });\n    }\n\n    if (!dateFormat) {\n      throw new Error('uibDatepickerPopup must have a date format specified.');\n    }\n\n    if (isHtml5DateInput && $attrs.uibDatepickerPopup) {\n      throw new Error('HTML5 date input types do not support custom formats.');\n    }\n\n    // popup element used to display calendar\n    popupEl = angular.element('<div uib-datepicker-popup-wrap><div uib-datepicker></div></div>');\n\n    popupEl.attr({\n      'ng-model': 'date',\n      'ng-change': 'dateSelection(date)',\n      'template-url': datepickerPopupTemplateUrl\n    });\n\n    // datepicker element\n    datepickerEl = angular.element(popupEl.children()[0]);\n    datepickerEl.attr('template-url', datepickerTemplateUrl);\n\n    if (!$scope.datepickerOptions) {\n      $scope.datepickerOptions = {};\n    }\n\n    if (isHtml5DateInput) {\n      if ($attrs.type === 'month') {\n        $scope.datepickerOptions.datepickerMode = 'month';\n        $scope.datepickerOptions.minMode = 'month';\n      }\n    }\n\n    datepickerEl.attr('datepicker-options', 'datepickerOptions');\n\n    if (!isHtml5DateInput) {\n      // Internal API to maintain the correct ng-invalid-[key] class\n      ngModel.$$parserName = 'date';\n      ngModel.$validators.date = validator;\n      ngModel.$parsers.unshift(parseDate);\n      ngModel.$formatters.push(function(value) {\n        if (ngModel.$isEmpty(value)) {\n          $scope.date = value;\n          return value;\n        }\n\n        if (angular.isNumber(value)) {\n          value = new Date(value);\n        }\n\n        $scope.date = dateParser.fromTimezone(value, ngModelOptions.getOption('timezone'));\n\n        return dateParser.filter($scope.date, dateFormat);\n      });\n    } else {\n      ngModel.$formatters.push(function(value) {\n        $scope.date = dateParser.fromTimezone(value, ngModelOptions.getOption('timezone'));\n        return value;\n      });\n    }\n\n    // Detect changes in the view from the text box\n    ngModel.$viewChangeListeners.push(function() {\n      $scope.date = parseDateString(ngModel.$viewValue);\n    });\n\n    $element.on('keydown', inputKeydownBind);\n\n    $popup = $compile(popupEl)($scope);\n    // Prevent jQuery cache memory leak (template is now redundant after linking)\n    popupEl.remove();\n\n    if (appendToBody) {\n      $document.find('body').append($popup);\n    } else {\n      $element.after($popup);\n    }\n\n    $scope.$on('$destroy', function() {\n      if ($scope.isOpen === true) {\n        if (!$rootScope.$$phase) {\n          $scope.$apply(function() {\n            $scope.isOpen = false;\n          });\n        }\n      }\n\n      $popup.remove();\n      $element.off('keydown', inputKeydownBind);\n      $document.off('click', documentClickBind);\n      if (scrollParentEl) {\n        scrollParentEl.off('scroll', positionPopup);\n      }\n      angular.element($window).off('resize', positionPopup);\n\n      //Clear all watch listeners on destroy\n      while (watchListeners.length) {\n        watchListeners.shift()();\n      }\n    });\n  };\n\n  $scope.getText = function(key) {\n    return $scope[key + 'Text'] || datepickerPopupConfig[key + 'Text'];\n  };\n\n  $scope.isDisabled = function(date) {\n    if (date === 'today') {\n      date = dateParser.fromTimezone(new Date(), ngModelOptions.getOption('timezone'));\n    }\n\n    var dates = {};\n    angular.forEach(['minDate', 'maxDate'], function(key) {\n      if (!$scope.datepickerOptions[key]) {\n        dates[key] = null;\n      } else if (angular.isDate($scope.datepickerOptions[key])) {\n        dates[key] = new Date($scope.datepickerOptions[key]);\n      } else {\n        if ($datepickerPopupLiteralWarning) {\n          $log.warn('Literal date support has been deprecated, please switch to date object usage');\n        }\n\n        dates[key] = new Date(dateFilter($scope.datepickerOptions[key], 'medium'));\n      }\n    });\n\n    return $scope.datepickerOptions &&\n      dates.minDate && $scope.compare(date, dates.minDate) < 0 ||\n      dates.maxDate && $scope.compare(date, dates.maxDate) > 0;\n  };\n\n  $scope.compare = function(date1, date2) {\n    return new Date(date1.getFullYear(), date1.getMonth(), date1.getDate()) - new Date(date2.getFullYear(), date2.getMonth(), date2.getDate());\n  };\n\n  // Inner change\n  $scope.dateSelection = function(dt) {\n    $scope.date = dt;\n    var date = $scope.date ? dateParser.filter($scope.date, dateFormat) : null; // Setting to NULL is necessary for form validators to function\n    $element.val(date);\n    ngModel.$setViewValue(date);\n\n    if (closeOnDateSelection) {\n      $scope.isOpen = false;\n      $element[0].focus();\n    }\n  };\n\n  $scope.keydown = function(evt) {\n    if (evt.which === 27) {\n      evt.stopPropagation();\n      $scope.isOpen = false;\n      $element[0].focus();\n    }\n  };\n\n  $scope.select = function(date, evt) {\n    evt.stopPropagation();\n\n    if (date === 'today') {\n      var today = new Date();\n      if (angular.isDate($scope.date)) {\n        date = new Date($scope.date);\n        date.setFullYear(today.getFullYear(), today.getMonth(), today.getDate());\n      } else {\n        date = dateParser.fromTimezone(today, ngModelOptions.getOption('timezone'));\n        date.setHours(0, 0, 0, 0);\n      }\n    }\n    $scope.dateSelection(date);\n  };\n\n  $scope.close = function(evt) {\n    evt.stopPropagation();\n\n    $scope.isOpen = false;\n    $element[0].focus();\n  };\n\n  $scope.disabled = angular.isDefined($attrs.disabled) || false;\n  if ($attrs.ngDisabled) {\n    watchListeners.push($scope.$parent.$watch($parse($attrs.ngDisabled), function(disabled) {\n      $scope.disabled = disabled;\n    }));\n  }\n\n  $scope.$watch('isOpen', function(value) {\n    if (value) {\n      if (!$scope.disabled) {\n        $timeout(function() {\n          positionPopup();\n\n          if (onOpenFocus) {\n            $scope.$broadcast('uib:datepicker.focus');\n          }\n\n          $document.on('click', documentClickBind);\n\n          var placement = $attrs.popupPlacement ? $attrs.popupPlacement : datepickerPopupConfig.placement;\n          if (appendToBody || $position.parsePlacement(placement)[2]) {\n            scrollParentEl = scrollParentEl || angular.element($position.scrollParent($element));\n            if (scrollParentEl) {\n              scrollParentEl.on('scroll', positionPopup);\n            }\n          } else {\n            scrollParentEl = null;\n          }\n\n          angular.element($window).on('resize', positionPopup);\n        }, 0, false);\n      } else {\n        $scope.isOpen = false;\n      }\n    } else {\n      $document.off('click', documentClickBind);\n      if (scrollParentEl) {\n        scrollParentEl.off('scroll', positionPopup);\n      }\n      angular.element($window).off('resize', positionPopup);\n    }\n  });\n\n  function cameltoDash(string) {\n    return string.replace(/([A-Z])/g, function($1) { return '-' + $1.toLowerCase(); });\n  }\n\n  function parseDateString(viewValue) {\n    var date = dateParser.parse(viewValue, dateFormat, $scope.date);\n    if (isNaN(date)) {\n      for (var i = 0; i < altInputFormats.length; i++) {\n        date = dateParser.parse(viewValue, altInputFormats[i], $scope.date);\n        if (!isNaN(date)) {\n          return date;\n        }\n      }\n    }\n    return date;\n  }\n\n  function parseDate(viewValue) {\n    if (angular.isNumber(viewValue)) {\n      // presumably timestamp to date object\n      viewValue = new Date(viewValue);\n    }\n\n    if (!viewValue) {\n      return null;\n    }\n\n    if (angular.isDate(viewValue) && !isNaN(viewValue)) {\n      return viewValue;\n    }\n\n    if (angular.isString(viewValue)) {\n      var date = parseDateString(viewValue);\n      if (!isNaN(date)) {\n        return dateParser.toTimezone(date, ngModelOptions.getOption('timezone'));\n      }\n    }\n\n    return ngModelOptions.getOption('allowInvalid') ? viewValue : undefined;\n  }\n\n  function validator(modelValue, viewValue) {\n    var value = modelValue || viewValue;\n\n    if (!$attrs.ngRequired && !value) {\n      return true;\n    }\n\n    if (angular.isNumber(value)) {\n      value = new Date(value);\n    }\n\n    if (!value) {\n      return true;\n    }\n\n    if (angular.isDate(value) && !isNaN(value)) {\n      return true;\n    }\n\n    if (angular.isString(value)) {\n      return !isNaN(parseDateString(value));\n    }\n\n    return false;\n  }\n\n  function documentClickBind(event) {\n    if (!$scope.isOpen && $scope.disabled) {\n      return;\n    }\n\n    var popup = $popup[0];\n    var dpContainsTarget = $element[0].contains(event.target);\n    // The popup node may not be an element node\n    // In some browsers (IE) only element nodes have the 'contains' function\n    var popupContainsTarget = popup.contains !== undefined && popup.contains(event.target);\n    if ($scope.isOpen && !(dpContainsTarget || popupContainsTarget)) {\n      $scope.$apply(function() {\n        $scope.isOpen = false;\n      });\n    }\n  }\n\n  function inputKeydownBind(evt) {\n    if (evt.which === 27 && $scope.isOpen) {\n      evt.preventDefault();\n      evt.stopPropagation();\n      $scope.$apply(function() {\n        $scope.isOpen = false;\n      });\n      $element[0].focus();\n    } else if (evt.which === 40 && !$scope.isOpen) {\n      evt.preventDefault();\n      evt.stopPropagation();\n      $scope.$apply(function() {\n        $scope.isOpen = true;\n      });\n    }\n  }\n\n  function positionPopup() {\n    if ($scope.isOpen) {\n      var dpElement = angular.element($popup[0].querySelector('.uib-datepicker-popup'));\n      var placement = $attrs.popupPlacement ? $attrs.popupPlacement : datepickerPopupConfig.placement;\n      var position = $position.positionElements($element, dpElement, placement, appendToBody);\n      dpElement.css({top: position.top + 'px', left: position.left + 'px'});\n      if (dpElement.hasClass('uib-position-measure')) {\n        dpElement.removeClass('uib-position-measure');\n      }\n    }\n  }\n\n  function extractOptions(ngModelCtrl) {\n    var ngModelOptions;\n\n    if (angular.version.minor < 6) { // in angular < 1.6 $options could be missing\n      // guarantee a value\n      ngModelOptions = angular.isObject(ngModelCtrl.$options) ?\n        ngModelCtrl.$options :\n        {\n          timezone: null\n        };\n\n      // mimic 1.6+ api\n      ngModelOptions.getOption = function (key) {\n        return ngModelOptions[key];\n      };\n    } else { // in angular >=1.6 $options is always present\n      ngModelOptions = ngModelCtrl.$options;\n    }\n\n    return ngModelOptions;\n  }\n\n  $scope.$on('uib:datepicker.mode', function() {\n    $timeout(positionPopup, 0, false);\n  });\n}])\n\n.directive('uibDatepickerPopup', function() {\n  return {\n    require: ['ngModel', 'uibDatepickerPopup'],\n    controller: 'UibDatepickerPopupController',\n    scope: {\n      datepickerOptions: '=?',\n      isOpen: '=?',\n      currentText: '@',\n      clearText: '@',\n      closeText: '@'\n    },\n    link: function(scope, element, attrs, ctrls) {\n      var ngModel = ctrls[0],\n        ctrl = ctrls[1];\n\n      ctrl.init(ngModel);\n    }\n  };\n})\n\n.directive('uibDatepickerPopupWrap', function() {\n  return {\n    restrict: 'A',\n    transclude: true,\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/datepickerPopup/popup.html';\n    }\n  };\n});\n\nangular.module('ui.bootstrap.debounce', [])\n/**\n * A helper, internal service that debounces a function\n */\n  .factory('$$debounce', ['$timeout', function($timeout) {\n    return function(callback, debounceTime) {\n      var timeoutPromise;\n\n      return function() {\n        var self = this;\n        var args = Array.prototype.slice.call(arguments);\n        if (timeoutPromise) {\n          $timeout.cancel(timeoutPromise);\n        }\n\n        timeoutPromise = $timeout(function() {\n          callback.apply(self, args);\n        }, debounceTime);\n      };\n    };\n  }]);\n\nangular.module('ui.bootstrap.multiMap', [])\n/**\n * A helper, internal data structure that stores all references attached to key\n */\n  .factory('$$multiMap', function() {\n    return {\n      createNew: function() {\n        var map = {};\n\n        return {\n          entries: function() {\n            return Object.keys(map).map(function(key) {\n              return {\n                key: key,\n                value: map[key]\n              };\n            });\n          },\n          get: function(key) {\n            return map[key];\n          },\n          hasKey: function(key) {\n            return !!map[key];\n          },\n          keys: function() {\n            return Object.keys(map);\n          },\n          put: function(key, value) {\n            if (!map[key]) {\n              map[key] = [];\n            }\n\n            map[key].push(value);\n          },\n          remove: function(key, value) {\n            var values = map[key];\n\n            if (!values) {\n              return;\n            }\n\n            var idx = values.indexOf(value);\n\n            if (idx !== -1) {\n              values.splice(idx, 1);\n            }\n\n            if (!values.length) {\n              delete map[key];\n            }\n          }\n        };\n      }\n    };\n  });\n\nangular.module('ui.bootstrap.dropdown', ['ui.bootstrap.multiMap', 'ui.bootstrap.position'])\n\n.constant('uibDropdownConfig', {\n  appendToOpenClass: 'uib-dropdown-open',\n  openClass: 'open'\n})\n\n.service('uibDropdownService', ['$document', '$rootScope', '$$multiMap', function($document, $rootScope, $$multiMap) {\n  var openScope = null;\n  var openedContainers = $$multiMap.createNew();\n\n  this.isOnlyOpen = function(dropdownScope, appendTo) {\n    var openedDropdowns = openedContainers.get(appendTo);\n    if (openedDropdowns) {\n      var openDropdown = openedDropdowns.reduce(function(toClose, dropdown) {\n        if (dropdown.scope === dropdownScope) {\n          return dropdown;\n        }\n\n        return toClose;\n      }, {});\n      if (openDropdown) {\n        return openedDropdowns.length === 1;\n      }\n    }\n\n    return false;\n  };\n\n  this.open = function(dropdownScope, element, appendTo) {\n    if (!openScope) {\n      $document.on('click', closeDropdown);\n    }\n\n    if (openScope && openScope !== dropdownScope) {\n      openScope.isOpen = false;\n    }\n\n    openScope = dropdownScope;\n\n    if (!appendTo) {\n      return;\n    }\n\n    var openedDropdowns = openedContainers.get(appendTo);\n    if (openedDropdowns) {\n      var openedScopes = openedDropdowns.map(function(dropdown) {\n        return dropdown.scope;\n      });\n      if (openedScopes.indexOf(dropdownScope) === -1) {\n        openedContainers.put(appendTo, {\n          scope: dropdownScope\n        });\n      }\n    } else {\n      openedContainers.put(appendTo, {\n        scope: dropdownScope\n      });\n    }\n  };\n\n  this.close = function(dropdownScope, element, appendTo) {\n    if (openScope === dropdownScope) {\n      $document.off('click', closeDropdown);\n      $document.off('keydown', this.keybindFilter);\n      openScope = null;\n    }\n\n    if (!appendTo) {\n      return;\n    }\n\n    var openedDropdowns = openedContainers.get(appendTo);\n    if (openedDropdowns) {\n      var dropdownToClose = openedDropdowns.reduce(function(toClose, dropdown) {\n        if (dropdown.scope === dropdownScope) {\n          return dropdown;\n        }\n\n        return toClose;\n      }, {});\n      if (dropdownToClose) {\n        openedContainers.remove(appendTo, dropdownToClose);\n      }\n    }\n  };\n\n  var closeDropdown = function(evt) {\n    // This method may still be called during the same mouse event that\n    // unbound this event handler. So check openScope before proceeding.\n    if (!openScope || !openScope.isOpen) { return; }\n\n    if (evt && openScope.getAutoClose() === 'disabled') { return; }\n\n    if (evt && evt.which === 3) { return; }\n\n    var toggleElement = openScope.getToggleElement();\n    if (evt && toggleElement && toggleElement[0].contains(evt.target)) {\n      return;\n    }\n\n    var dropdownElement = openScope.getDropdownElement();\n    if (evt && openScope.getAutoClose() === 'outsideClick' &&\n      dropdownElement && dropdownElement[0].contains(evt.target)) {\n      return;\n    }\n\n    openScope.focusToggleElement();\n    openScope.isOpen = false;\n\n    if (!$rootScope.$$phase) {\n      openScope.$apply();\n    }\n  };\n\n  this.keybindFilter = function(evt) {\n    if (!openScope) {\n      // see this.close as ESC could have been pressed which kills the scope so we can not proceed\n      return;\n    }\n\n    var dropdownElement = openScope.getDropdownElement();\n    var toggleElement = openScope.getToggleElement();\n    var dropdownElementTargeted = dropdownElement && dropdownElement[0].contains(evt.target);\n    var toggleElementTargeted = toggleElement && toggleElement[0].contains(evt.target);\n    if (evt.which === 27) {\n      evt.stopPropagation();\n      openScope.focusToggleElement();\n      closeDropdown();\n    } else if (openScope.isKeynavEnabled() && [38, 40].indexOf(evt.which) !== -1 && openScope.isOpen && (dropdownElementTargeted || toggleElementTargeted)) {\n      evt.preventDefault();\n      evt.stopPropagation();\n      openScope.focusDropdownEntry(evt.which);\n    }\n  };\n}])\n\n.controller('UibDropdownController', ['$scope', '$element', '$attrs', '$parse', 'uibDropdownConfig', 'uibDropdownService', '$animate', '$uibPosition', '$document', '$compile', '$templateRequest', function($scope, $element, $attrs, $parse, dropdownConfig, uibDropdownService, $animate, $position, $document, $compile, $templateRequest) {\n  var self = this,\n    scope = $scope.$new(), // create a child scope so we are not polluting original one\n    templateScope,\n    appendToOpenClass = dropdownConfig.appendToOpenClass,\n    openClass = dropdownConfig.openClass,\n    getIsOpen,\n    setIsOpen = angular.noop,\n    toggleInvoker = $attrs.onToggle ? $parse($attrs.onToggle) : angular.noop,\n    keynavEnabled = false,\n    selectedOption = null,\n    body = $document.find('body');\n\n  $element.addClass('dropdown');\n\n  this.init = function() {\n    if ($attrs.isOpen) {\n      getIsOpen = $parse($attrs.isOpen);\n      setIsOpen = getIsOpen.assign;\n\n      $scope.$watch(getIsOpen, function(value) {\n        scope.isOpen = !!value;\n      });\n    }\n\n    keynavEnabled = angular.isDefined($attrs.keyboardNav);\n  };\n\n  this.toggle = function(open) {\n    scope.isOpen = arguments.length ? !!open : !scope.isOpen;\n    if (angular.isFunction(setIsOpen)) {\n      setIsOpen(scope, scope.isOpen);\n    }\n\n    return scope.isOpen;\n  };\n\n  // Allow other directives to watch status\n  this.isOpen = function() {\n    return scope.isOpen;\n  };\n\n  scope.getToggleElement = function() {\n    return self.toggleElement;\n  };\n\n  scope.getAutoClose = function() {\n    return $attrs.autoClose || 'always'; //or 'outsideClick' or 'disabled'\n  };\n\n  scope.getElement = function() {\n    return $element;\n  };\n\n  scope.isKeynavEnabled = function() {\n    return keynavEnabled;\n  };\n\n  scope.focusDropdownEntry = function(keyCode) {\n    var elems = self.dropdownMenu ? //If append to body is used.\n      angular.element(self.dropdownMenu).find('a') :\n      $element.find('ul').eq(0).find('a');\n\n    switch (keyCode) {\n      case 40: {\n        if (!angular.isNumber(self.selectedOption)) {\n          self.selectedOption = 0;\n        } else {\n          self.selectedOption = self.selectedOption === elems.length - 1 ?\n            self.selectedOption :\n            self.selectedOption + 1;\n        }\n        break;\n      }\n      case 38: {\n        if (!angular.isNumber(self.selectedOption)) {\n          self.selectedOption = elems.length - 1;\n        } else {\n          self.selectedOption = self.selectedOption === 0 ?\n            0 : self.selectedOption - 1;\n        }\n        break;\n      }\n    }\n    elems[self.selectedOption].focus();\n  };\n\n  scope.getDropdownElement = function() {\n    return self.dropdownMenu;\n  };\n\n  scope.focusToggleElement = function() {\n    if (self.toggleElement) {\n      self.toggleElement[0].focus();\n    }\n  };\n\n  function removeDropdownMenu() {\n    $element.append(self.dropdownMenu);\n  }\n\n  scope.$watch('isOpen', function(isOpen, wasOpen) {\n    var appendTo = null,\n      appendToBody = false;\n\n    if (angular.isDefined($attrs.dropdownAppendTo)) {\n      var appendToEl = $parse($attrs.dropdownAppendTo)(scope);\n      if (appendToEl) {\n        appendTo = angular.element(appendToEl);\n      }\n    }\n\n    if (angular.isDefined($attrs.dropdownAppendToBody)) {\n      var appendToBodyValue = $parse($attrs.dropdownAppendToBody)(scope);\n      if (appendToBodyValue !== false) {\n        appendToBody = true;\n      }\n    }\n\n    if (appendToBody && !appendTo) {\n      appendTo = body;\n    }\n\n    if (appendTo && self.dropdownMenu) {\n      if (isOpen) {\n        appendTo.append(self.dropdownMenu);\n        $element.on('$destroy', removeDropdownMenu);\n      } else {\n        $element.off('$destroy', removeDropdownMenu);\n        removeDropdownMenu();\n      }\n    }\n\n    if (appendTo && self.dropdownMenu) {\n      var pos = $position.positionElements($element, self.dropdownMenu, 'bottom-left', true),\n        css,\n        rightalign,\n        scrollbarPadding,\n        scrollbarWidth = 0;\n\n      css = {\n        top: pos.top + 'px',\n        display: isOpen ? 'block' : 'none'\n      };\n\n      rightalign = self.dropdownMenu.hasClass('dropdown-menu-right');\n      if (!rightalign) {\n        css.left = pos.left + 'px';\n        css.right = 'auto';\n      } else {\n        css.left = 'auto';\n        scrollbarPadding = $position.scrollbarPadding(appendTo);\n\n        if (scrollbarPadding.heightOverflow && scrollbarPadding.scrollbarWidth) {\n          scrollbarWidth = scrollbarPadding.scrollbarWidth;\n        }\n\n        css.right = window.innerWidth - scrollbarWidth -\n          (pos.left + $element.prop('offsetWidth')) + 'px';\n      }\n\n      // Need to adjust our positioning to be relative to the appendTo container\n      // if it's not the body element\n      if (!appendToBody) {\n        var appendOffset = $position.offset(appendTo);\n\n        css.top = pos.top - appendOffset.top + 'px';\n\n        if (!rightalign) {\n          css.left = pos.left - appendOffset.left + 'px';\n        } else {\n          css.right = window.innerWidth -\n            (pos.left - appendOffset.left + $element.prop('offsetWidth')) + 'px';\n        }\n      }\n\n      self.dropdownMenu.css(css);\n    }\n\n    var openContainer = appendTo ? appendTo : $element;\n    var dropdownOpenClass = appendTo ? appendToOpenClass : openClass;\n    var hasOpenClass = openContainer.hasClass(dropdownOpenClass);\n    var isOnlyOpen = uibDropdownService.isOnlyOpen($scope, appendTo);\n\n    if (hasOpenClass === !isOpen) {\n      var toggleClass;\n      if (appendTo) {\n        toggleClass = !isOnlyOpen ? 'addClass' : 'removeClass';\n      } else {\n        toggleClass = isOpen ? 'addClass' : 'removeClass';\n      }\n      $animate[toggleClass](openContainer, dropdownOpenClass).then(function() {\n        if (angular.isDefined(isOpen) && isOpen !== wasOpen) {\n          toggleInvoker($scope, { open: !!isOpen });\n        }\n      });\n    }\n\n    if (isOpen) {\n      if (self.dropdownMenuTemplateUrl) {\n        $templateRequest(self.dropdownMenuTemplateUrl).then(function(tplContent) {\n          templateScope = scope.$new();\n          $compile(tplContent.trim())(templateScope, function(dropdownElement) {\n            var newEl = dropdownElement;\n            self.dropdownMenu.replaceWith(newEl);\n            self.dropdownMenu = newEl;\n            $document.on('keydown', uibDropdownService.keybindFilter);\n          });\n        });\n      } else {\n        $document.on('keydown', uibDropdownService.keybindFilter);\n      }\n\n      scope.focusToggleElement();\n      uibDropdownService.open(scope, $element, appendTo);\n    } else {\n      uibDropdownService.close(scope, $element, appendTo);\n      if (self.dropdownMenuTemplateUrl) {\n        if (templateScope) {\n          templateScope.$destroy();\n        }\n        var newEl = angular.element('<ul class=\"dropdown-menu\"></ul>');\n        self.dropdownMenu.replaceWith(newEl);\n        self.dropdownMenu = newEl;\n      }\n\n      self.selectedOption = null;\n    }\n\n    if (angular.isFunction(setIsOpen)) {\n      setIsOpen($scope, isOpen);\n    }\n  });\n}])\n\n.directive('uibDropdown', function() {\n  return {\n    controller: 'UibDropdownController',\n    link: function(scope, element, attrs, dropdownCtrl) {\n      dropdownCtrl.init();\n    }\n  };\n})\n\n.directive('uibDropdownMenu', function() {\n  return {\n    restrict: 'A',\n    require: '?^uibDropdown',\n    link: function(scope, element, attrs, dropdownCtrl) {\n      if (!dropdownCtrl || angular.isDefined(attrs.dropdownNested)) {\n        return;\n      }\n\n      element.addClass('dropdown-menu');\n\n      var tplUrl = attrs.templateUrl;\n      if (tplUrl) {\n        dropdownCtrl.dropdownMenuTemplateUrl = tplUrl;\n      }\n\n      if (!dropdownCtrl.dropdownMenu) {\n        dropdownCtrl.dropdownMenu = element;\n      }\n    }\n  };\n})\n\n.directive('uibDropdownToggle', function() {\n  return {\n    require: '?^uibDropdown',\n    link: function(scope, element, attrs, dropdownCtrl) {\n      if (!dropdownCtrl) {\n        return;\n      }\n\n      element.addClass('dropdown-toggle');\n\n      dropdownCtrl.toggleElement = element;\n\n      var toggleDropdown = function(event) {\n        event.preventDefault();\n\n        if (!element.hasClass('disabled') && !attrs.disabled) {\n          scope.$apply(function() {\n            dropdownCtrl.toggle();\n          });\n        }\n      };\n\n      element.on('click', toggleDropdown);\n\n      // WAI-ARIA\n      element.attr({ 'aria-haspopup': true, 'aria-expanded': false });\n      scope.$watch(dropdownCtrl.isOpen, function(isOpen) {\n        element.attr('aria-expanded', !!isOpen);\n      });\n\n      scope.$on('$destroy', function() {\n        element.off('click', toggleDropdown);\n      });\n    }\n  };\n});\n\nangular.module('ui.bootstrap.stackedMap', [])\n/**\n * A helper, internal data structure that acts as a map but also allows getting / removing\n * elements in the LIFO order\n */\n  .factory('$$stackedMap', function() {\n    return {\n      createNew: function() {\n        var stack = [];\n\n        return {\n          add: function(key, value) {\n            stack.push({\n              key: key,\n              value: value\n            });\n          },\n          get: function(key) {\n            for (var i = 0; i < stack.length; i++) {\n              if (key === stack[i].key) {\n                return stack[i];\n              }\n            }\n          },\n          keys: function() {\n            var keys = [];\n            for (var i = 0; i < stack.length; i++) {\n              keys.push(stack[i].key);\n            }\n            return keys;\n          },\n          top: function() {\n            return stack[stack.length - 1];\n          },\n          remove: function(key) {\n            var idx = -1;\n            for (var i = 0; i < stack.length; i++) {\n              if (key === stack[i].key) {\n                idx = i;\n                break;\n              }\n            }\n            return stack.splice(idx, 1)[0];\n          },\n          removeTop: function() {\n            return stack.pop();\n          },\n          length: function() {\n            return stack.length;\n          }\n        };\n      }\n    };\n  });\nangular.module('ui.bootstrap.modal', ['ui.bootstrap.multiMap', 'ui.bootstrap.stackedMap', 'ui.bootstrap.position'])\n/**\n * Pluggable resolve mechanism for the modal resolve resolution\n * Supports UI Router's $resolve service\n */\n  .provider('$uibResolve', function() {\n    var resolve = this;\n    this.resolver = null;\n\n    this.setResolver = function(resolver) {\n      this.resolver = resolver;\n    };\n\n    this.$get = ['$injector', '$q', function($injector, $q) {\n      var resolver = resolve.resolver ? $injector.get(resolve.resolver) : null;\n      return {\n        resolve: function(invocables, locals, parent, self) {\n          if (resolver) {\n            return resolver.resolve(invocables, locals, parent, self);\n          }\n\n          var promises = [];\n\n          angular.forEach(invocables, function(value) {\n            if (angular.isFunction(value) || angular.isArray(value)) {\n              promises.push($q.resolve($injector.invoke(value)));\n            } else if (angular.isString(value)) {\n              promises.push($q.resolve($injector.get(value)));\n            } else {\n              promises.push($q.resolve(value));\n            }\n          });\n\n          return $q.all(promises).then(function(resolves) {\n            var resolveObj = {};\n            var resolveIter = 0;\n            angular.forEach(invocables, function(value, key) {\n              resolveObj[key] = resolves[resolveIter++];\n            });\n\n            return resolveObj;\n          });\n        }\n      };\n    }];\n  })\n\n/**\n * A helper directive for the $modal service. It creates a backdrop element.\n */\n  .directive('uibModalBackdrop', ['$animate', '$injector', '$uibModalStack',\n  function($animate, $injector, $modalStack) {\n    return {\n      restrict: 'A',\n      compile: function(tElement, tAttrs) {\n        tElement.addClass(tAttrs.backdropClass);\n        return linkFn;\n      }\n    };\n\n    function linkFn(scope, element, attrs) {\n      if (attrs.modalInClass) {\n        $animate.addClass(element, attrs.modalInClass);\n\n        scope.$on($modalStack.NOW_CLOSING_EVENT, function(e, setIsAsync) {\n          var done = setIsAsync();\n          if (scope.modalOptions.animation) {\n            $animate.removeClass(element, attrs.modalInClass).then(done);\n          } else {\n            done();\n          }\n        });\n      }\n    }\n  }])\n\n  .directive('uibModalWindow', ['$uibModalStack', '$q', '$animateCss', '$document',\n  function($modalStack, $q, $animateCss, $document) {\n    return {\n      scope: {\n        index: '@'\n      },\n      restrict: 'A',\n      transclude: true,\n      templateUrl: function(tElement, tAttrs) {\n        return tAttrs.templateUrl || 'uib/template/modal/window.html';\n      },\n      link: function(scope, element, attrs) {\n        element.addClass(attrs.windowTopClass || '');\n        scope.size = attrs.size;\n\n        scope.close = function(evt) {\n          var modal = $modalStack.getTop();\n          if (modal && modal.value.backdrop &&\n            modal.value.backdrop !== 'static' &&\n            evt.target === evt.currentTarget) {\n            evt.preventDefault();\n            evt.stopPropagation();\n            $modalStack.dismiss(modal.key, 'backdrop click');\n          }\n        };\n\n        // moved from template to fix issue #2280\n        element.on('click', scope.close);\n\n        // This property is only added to the scope for the purpose of detecting when this directive is rendered.\n        // We can detect that by using this property in the template associated with this directive and then use\n        // {@link Attribute#$observe} on it. For more details please see {@link TableColumnResize}.\n        scope.$isRendered = true;\n\n        // Deferred object that will be resolved when this modal is rendered.\n        var modalRenderDeferObj = $q.defer();\n        // Resolve render promise post-digest\n        scope.$$postDigest(function() {\n          modalRenderDeferObj.resolve();\n        });\n\n        modalRenderDeferObj.promise.then(function() {\n          var animationPromise = null;\n\n          if (attrs.modalInClass) {\n            animationPromise = $animateCss(element, {\n              addClass: attrs.modalInClass\n            }).start();\n\n            scope.$on($modalStack.NOW_CLOSING_EVENT, function(e, setIsAsync) {\n              var done = setIsAsync();\n              $animateCss(element, {\n                removeClass: attrs.modalInClass\n              }).start().then(done);\n            });\n          }\n\n\n          $q.when(animationPromise).then(function() {\n            // Notify {@link $modalStack} that modal is rendered.\n            var modal = $modalStack.getTop();\n            if (modal) {\n              $modalStack.modalRendered(modal.key);\n            }\n\n            /**\n             * If something within the freshly-opened modal already has focus (perhaps via a\n             * directive that causes focus) then there's no need to try to focus anything.\n             */\n            if (!($document[0].activeElement && element[0].contains($document[0].activeElement))) {\n              var inputWithAutofocus = element[0].querySelector('[autofocus]');\n              /**\n               * Auto-focusing of a freshly-opened modal element causes any child elements\n               * with the autofocus attribute to lose focus. This is an issue on touch\n               * based devices which will show and then hide the onscreen keyboard.\n               * Attempts to refocus the autofocus element via JavaScript will not reopen\n               * the onscreen keyboard. Fixed by updated the focusing logic to only autofocus\n               * the modal element if the modal does not contain an autofocus element.\n               */\n              if (inputWithAutofocus) {\n                inputWithAutofocus.focus();\n              } else {\n                element[0].focus();\n              }\n            }\n          });\n        });\n      }\n    };\n  }])\n\n  .directive('uibModalAnimationClass', function() {\n    return {\n      compile: function(tElement, tAttrs) {\n        if (tAttrs.modalAnimation) {\n          tElement.addClass(tAttrs.uibModalAnimationClass);\n        }\n      }\n    };\n  })\n\n  .directive('uibModalTransclude', ['$animate', function($animate) {\n    return {\n      link: function(scope, element, attrs, controller, transclude) {\n        transclude(scope.$parent, function(clone) {\n          element.empty();\n          $animate.enter(clone, element);\n        });\n      }\n    };\n  }])\n\n  .factory('$uibModalStack', ['$animate', '$animateCss', '$document',\n    '$compile', '$rootScope', '$q', '$$multiMap', '$$stackedMap', '$uibPosition',\n    function($animate, $animateCss, $document, $compile, $rootScope, $q, $$multiMap, $$stackedMap, $uibPosition) {\n      var OPENED_MODAL_CLASS = 'modal-open';\n\n      var backdropDomEl, backdropScope;\n      var openedWindows = $$stackedMap.createNew();\n      var openedClasses = $$multiMap.createNew();\n      var $modalStack = {\n        NOW_CLOSING_EVENT: 'modal.stack.now-closing'\n      };\n      var topModalIndex = 0;\n      var previousTopOpenedModal = null;\n      var ARIA_HIDDEN_ATTRIBUTE_NAME = 'data-bootstrap-modal-aria-hidden-count';\n\n      //Modal focus behavior\n      var tabbableSelector = 'a[href], area[href], input:not([disabled]):not([tabindex=\\'-1\\']), ' +\n        'button:not([disabled]):not([tabindex=\\'-1\\']),select:not([disabled]):not([tabindex=\\'-1\\']), textarea:not([disabled]):not([tabindex=\\'-1\\']), ' +\n        'iframe, object, embed, *[tabindex]:not([tabindex=\\'-1\\']), *[contenteditable=true]';\n      var scrollbarPadding;\n      var SNAKE_CASE_REGEXP = /[A-Z]/g;\n\n      // TODO: extract into common dependency with tooltip\n      function snake_case(name) {\n        var separator = '-';\n        return name.replace(SNAKE_CASE_REGEXP, function(letter, pos) {\n          return (pos ? separator : '') + letter.toLowerCase();\n        });\n      }\n\n      function isVisible(element) {\n        return !!(element.offsetWidth ||\n          element.offsetHeight ||\n          element.getClientRects().length);\n      }\n\n      function backdropIndex() {\n        var topBackdropIndex = -1;\n        var opened = openedWindows.keys();\n        for (var i = 0; i < opened.length; i++) {\n          if (openedWindows.get(opened[i]).value.backdrop) {\n            topBackdropIndex = i;\n          }\n        }\n\n        // If any backdrop exist, ensure that it's index is always\n        // right below the top modal\n        if (topBackdropIndex > -1 && topBackdropIndex < topModalIndex) {\n          topBackdropIndex = topModalIndex;\n        }\n        return topBackdropIndex;\n      }\n\n      $rootScope.$watch(backdropIndex, function(newBackdropIndex) {\n        if (backdropScope) {\n          backdropScope.index = newBackdropIndex;\n        }\n      });\n\n      function removeModalWindow(modalInstance, elementToReceiveFocus) {\n        var modalWindow = openedWindows.get(modalInstance).value;\n        var appendToElement = modalWindow.appendTo;\n\n        //clean up the stack\n        openedWindows.remove(modalInstance);\n        previousTopOpenedModal = openedWindows.top();\n        if (previousTopOpenedModal) {\n          topModalIndex = parseInt(previousTopOpenedModal.value.modalDomEl.attr('index'), 10);\n        }\n\n        removeAfterAnimate(modalWindow.modalDomEl, modalWindow.modalScope, function() {\n          var modalBodyClass = modalWindow.openedClass || OPENED_MODAL_CLASS;\n          openedClasses.remove(modalBodyClass, modalInstance);\n          var areAnyOpen = openedClasses.hasKey(modalBodyClass);\n          appendToElement.toggleClass(modalBodyClass, areAnyOpen);\n          if (!areAnyOpen && scrollbarPadding && scrollbarPadding.heightOverflow && scrollbarPadding.scrollbarWidth) {\n            if (scrollbarPadding.originalRight) {\n              appendToElement.css({paddingRight: scrollbarPadding.originalRight + 'px'});\n            } else {\n              appendToElement.css({paddingRight: ''});\n            }\n            scrollbarPadding = null;\n          }\n          toggleTopWindowClass(true);\n        }, modalWindow.closedDeferred);\n        checkRemoveBackdrop();\n\n        //move focus to specified element if available, or else to body\n        if (elementToReceiveFocus && elementToReceiveFocus.focus) {\n          elementToReceiveFocus.focus();\n        } else if (appendToElement.focus) {\n          appendToElement.focus();\n        }\n      }\n\n      // Add or remove \"windowTopClass\" from the top window in the stack\n      function toggleTopWindowClass(toggleSwitch) {\n        var modalWindow;\n\n        if (openedWindows.length() > 0) {\n          modalWindow = openedWindows.top().value;\n          modalWindow.modalDomEl.toggleClass(modalWindow.windowTopClass || '', toggleSwitch);\n        }\n      }\n\n      function checkRemoveBackdrop() {\n        //remove backdrop if no longer needed\n        if (backdropDomEl && backdropIndex() === -1) {\n          var backdropScopeRef = backdropScope;\n          removeAfterAnimate(backdropDomEl, backdropScope, function() {\n            backdropScopeRef = null;\n          });\n          backdropDomEl = undefined;\n          backdropScope = undefined;\n        }\n      }\n\n      function removeAfterAnimate(domEl, scope, done, closedDeferred) {\n        var asyncDeferred;\n        var asyncPromise = null;\n        var setIsAsync = function() {\n          if (!asyncDeferred) {\n            asyncDeferred = $q.defer();\n            asyncPromise = asyncDeferred.promise;\n          }\n\n          return function asyncDone() {\n            asyncDeferred.resolve();\n          };\n        };\n        scope.$broadcast($modalStack.NOW_CLOSING_EVENT, setIsAsync);\n\n        // Note that it's intentional that asyncPromise might be null.\n        // That's when setIsAsync has not been called during the\n        // NOW_CLOSING_EVENT broadcast.\n        return $q.when(asyncPromise).then(afterAnimating);\n\n        function afterAnimating() {\n          if (afterAnimating.done) {\n            return;\n          }\n          afterAnimating.done = true;\n\n          $animate.leave(domEl).then(function() {\n            if (done) {\n              done();\n            }\n\n            domEl.remove();\n            if (closedDeferred) {\n              closedDeferred.resolve();\n            }\n          });\n\n          scope.$destroy();\n        }\n      }\n\n      $document.on('keydown', keydownListener);\n\n      $rootScope.$on('$destroy', function() {\n        $document.off('keydown', keydownListener);\n      });\n\n      function keydownListener(evt) {\n        if (evt.isDefaultPrevented()) {\n          return evt;\n        }\n\n        var modal = openedWindows.top();\n        if (modal) {\n          switch (evt.which) {\n            case 27: {\n              if (modal.value.keyboard) {\n                evt.preventDefault();\n                $rootScope.$apply(function() {\n                  $modalStack.dismiss(modal.key, 'escape key press');\n                });\n              }\n              break;\n            }\n            case 9: {\n              var list = $modalStack.loadFocusElementList(modal);\n              var focusChanged = false;\n              if (evt.shiftKey) {\n                if ($modalStack.isFocusInFirstItem(evt, list) || $modalStack.isModalFocused(evt, modal)) {\n                  focusChanged = $modalStack.focusLastFocusableElement(list);\n                }\n              } else {\n                if ($modalStack.isFocusInLastItem(evt, list)) {\n                  focusChanged = $modalStack.focusFirstFocusableElement(list);\n                }\n              }\n\n              if (focusChanged) {\n                evt.preventDefault();\n                evt.stopPropagation();\n              }\n\n              break;\n            }\n          }\n        }\n      }\n\n      $modalStack.open = function(modalInstance, modal) {\n        var modalOpener = $document[0].activeElement,\n          modalBodyClass = modal.openedClass || OPENED_MODAL_CLASS;\n\n        toggleTopWindowClass(false);\n\n        // Store the current top first, to determine what index we ought to use\n        // for the current top modal\n        previousTopOpenedModal = openedWindows.top();\n\n        openedWindows.add(modalInstance, {\n          deferred: modal.deferred,\n          renderDeferred: modal.renderDeferred,\n          closedDeferred: modal.closedDeferred,\n          modalScope: modal.scope,\n          backdrop: modal.backdrop,\n          keyboard: modal.keyboard,\n          openedClass: modal.openedClass,\n          windowTopClass: modal.windowTopClass,\n          animation: modal.animation,\n          appendTo: modal.appendTo\n        });\n\n        openedClasses.put(modalBodyClass, modalInstance);\n\n        var appendToElement = modal.appendTo,\n            currBackdropIndex = backdropIndex();\n\n        if (currBackdropIndex >= 0 && !backdropDomEl) {\n          backdropScope = $rootScope.$new(true);\n          backdropScope.modalOptions = modal;\n          backdropScope.index = currBackdropIndex;\n          backdropDomEl = angular.element('<div uib-modal-backdrop=\"modal-backdrop\"></div>');\n          backdropDomEl.attr({\n            'class': 'modal-backdrop',\n            'ng-style': '{\\'z-index\\': 1040 + (index && 1 || 0) + index*10}',\n            'uib-modal-animation-class': 'fade',\n            'modal-in-class': 'in'\n          });\n          if (modal.backdropClass) {\n            backdropDomEl.addClass(modal.backdropClass);\n          }\n\n          if (modal.animation) {\n            backdropDomEl.attr('modal-animation', 'true');\n          }\n          $compile(backdropDomEl)(backdropScope);\n          $animate.enter(backdropDomEl, appendToElement);\n          if ($uibPosition.isScrollable(appendToElement)) {\n            scrollbarPadding = $uibPosition.scrollbarPadding(appendToElement);\n            if (scrollbarPadding.heightOverflow && scrollbarPadding.scrollbarWidth) {\n              appendToElement.css({paddingRight: scrollbarPadding.right + 'px'});\n            }\n          }\n        }\n\n        var content;\n        if (modal.component) {\n          content = document.createElement(snake_case(modal.component.name));\n          content = angular.element(content);\n          content.attr({\n            resolve: '$resolve',\n            'modal-instance': '$uibModalInstance',\n            close: '$close($value)',\n            dismiss: '$dismiss($value)'\n          });\n        } else {\n          content = modal.content;\n        }\n\n        // Set the top modal index based on the index of the previous top modal\n        topModalIndex = previousTopOpenedModal ? parseInt(previousTopOpenedModal.value.modalDomEl.attr('index'), 10) + 1 : 0;\n        var angularDomEl = angular.element('<div uib-modal-window=\"modal-window\"></div>');\n        angularDomEl.attr({\n          'class': 'modal',\n          'template-url': modal.windowTemplateUrl,\n          'window-top-class': modal.windowTopClass,\n          'role': 'dialog',\n          'aria-labelledby': modal.ariaLabelledBy,\n          'aria-describedby': modal.ariaDescribedBy,\n          'size': modal.size,\n          'index': topModalIndex,\n          'animate': 'animate',\n          'ng-style': '{\\'z-index\\': 1050 + $$topModalIndex*10, display: \\'block\\'}',\n          'tabindex': -1,\n          'uib-modal-animation-class': 'fade',\n          'modal-in-class': 'in'\n        }).append(content);\n        if (modal.windowClass) {\n          angularDomEl.addClass(modal.windowClass);\n        }\n\n        if (modal.animation) {\n          angularDomEl.attr('modal-animation', 'true');\n        }\n\n        appendToElement.addClass(modalBodyClass);\n        if (modal.scope) {\n          // we need to explicitly add the modal index to the modal scope\n          // because it is needed by ngStyle to compute the zIndex property.\n          modal.scope.$$topModalIndex = topModalIndex;\n        }\n        $animate.enter($compile(angularDomEl)(modal.scope), appendToElement);\n\n        openedWindows.top().value.modalDomEl = angularDomEl;\n        openedWindows.top().value.modalOpener = modalOpener;\n\n        applyAriaHidden(angularDomEl);\n\n        function applyAriaHidden(el) {\n          if (!el || el[0].tagName === 'BODY') {\n            return;\n          }\n\n          getSiblings(el).forEach(function(sibling) {\n            var elemIsAlreadyHidden = sibling.getAttribute('aria-hidden') === 'true',\n              ariaHiddenCount = parseInt(sibling.getAttribute(ARIA_HIDDEN_ATTRIBUTE_NAME), 10);\n\n            if (!ariaHiddenCount) {\n              ariaHiddenCount = elemIsAlreadyHidden ? 1 : 0;\n            }\n\n            sibling.setAttribute(ARIA_HIDDEN_ATTRIBUTE_NAME, ariaHiddenCount + 1);\n            sibling.setAttribute('aria-hidden', 'true');\n          });\n\n          return applyAriaHidden(el.parent());\n\n          function getSiblings(el) {\n            var children = el.parent() ? el.parent().children() : [];\n\n            return Array.prototype.filter.call(children, function(child) {\n              return child !== el[0];\n            });\n          }\n        }\n      };\n\n      function broadcastClosing(modalWindow, resultOrReason, closing) {\n        return !modalWindow.value.modalScope.$broadcast('modal.closing', resultOrReason, closing).defaultPrevented;\n      }\n\n      function unhideBackgroundElements() {\n        Array.prototype.forEach.call(\n          document.querySelectorAll('[' + ARIA_HIDDEN_ATTRIBUTE_NAME + ']'),\n          function(hiddenEl) {\n            var ariaHiddenCount = parseInt(hiddenEl.getAttribute(ARIA_HIDDEN_ATTRIBUTE_NAME), 10),\n              newHiddenCount = ariaHiddenCount - 1;\n            hiddenEl.setAttribute(ARIA_HIDDEN_ATTRIBUTE_NAME, newHiddenCount);\n\n            if (!newHiddenCount) {\n              hiddenEl.removeAttribute(ARIA_HIDDEN_ATTRIBUTE_NAME);\n              hiddenEl.removeAttribute('aria-hidden');\n            }\n          }\n        );\n      }\n\n      $modalStack.close = function(modalInstance, result) {\n        var modalWindow = openedWindows.get(modalInstance);\n        unhideBackgroundElements();\n        if (modalWindow && broadcastClosing(modalWindow, result, true)) {\n          modalWindow.value.modalScope.$$uibDestructionScheduled = true;\n          modalWindow.value.deferred.resolve(result);\n          removeModalWindow(modalInstance, modalWindow.value.modalOpener);\n          return true;\n        }\n\n        return !modalWindow;\n      };\n\n      $modalStack.dismiss = function(modalInstance, reason) {\n        var modalWindow = openedWindows.get(modalInstance);\n        unhideBackgroundElements();\n        if (modalWindow && broadcastClosing(modalWindow, reason, false)) {\n          modalWindow.value.modalScope.$$uibDestructionScheduled = true;\n          modalWindow.value.deferred.reject(reason);\n          removeModalWindow(modalInstance, modalWindow.value.modalOpener);\n          return true;\n        }\n        return !modalWindow;\n      };\n\n      $modalStack.dismissAll = function(reason) {\n        var topModal = this.getTop();\n        while (topModal && this.dismiss(topModal.key, reason)) {\n          topModal = this.getTop();\n        }\n      };\n\n      $modalStack.getTop = function() {\n        return openedWindows.top();\n      };\n\n      $modalStack.modalRendered = function(modalInstance) {\n        var modalWindow = openedWindows.get(modalInstance);\n        if (modalWindow) {\n          modalWindow.value.renderDeferred.resolve();\n        }\n      };\n\n      $modalStack.focusFirstFocusableElement = function(list) {\n        if (list.length > 0) {\n          list[0].focus();\n          return true;\n        }\n        return false;\n      };\n\n      $modalStack.focusLastFocusableElement = function(list) {\n        if (list.length > 0) {\n          list[list.length - 1].focus();\n          return true;\n        }\n        return false;\n      };\n\n      $modalStack.isModalFocused = function(evt, modalWindow) {\n        if (evt && modalWindow) {\n          var modalDomEl = modalWindow.value.modalDomEl;\n          if (modalDomEl && modalDomEl.length) {\n            return (evt.target || evt.srcElement) === modalDomEl[0];\n          }\n        }\n        return false;\n      };\n\n      $modalStack.isFocusInFirstItem = function(evt, list) {\n        if (list.length > 0) {\n          return (evt.target || evt.srcElement) === list[0];\n        }\n        return false;\n      };\n\n      $modalStack.isFocusInLastItem = function(evt, list) {\n        if (list.length > 0) {\n          return (evt.target || evt.srcElement) === list[list.length - 1];\n        }\n        return false;\n      };\n\n      $modalStack.loadFocusElementList = function(modalWindow) {\n        if (modalWindow) {\n          var modalDomE1 = modalWindow.value.modalDomEl;\n          if (modalDomE1 && modalDomE1.length) {\n            var elements = modalDomE1[0].querySelectorAll(tabbableSelector);\n            return elements ?\n              Array.prototype.filter.call(elements, function(element) {\n                return isVisible(element);\n              }) : elements;\n          }\n        }\n      };\n\n      return $modalStack;\n    }])\n\n  .provider('$uibModal', function() {\n    var $modalProvider = {\n      options: {\n        animation: true,\n        backdrop: true, //can also be false or 'static'\n        keyboard: true\n      },\n      $get: ['$rootScope', '$q', '$document', '$templateRequest', '$controller', '$uibResolve', '$uibModalStack',\n        function ($rootScope, $q, $document, $templateRequest, $controller, $uibResolve, $modalStack) {\n          var $modal = {};\n\n          function getTemplatePromise(options) {\n            return options.template ? $q.when(options.template) :\n              $templateRequest(angular.isFunction(options.templateUrl) ?\n                options.templateUrl() : options.templateUrl);\n          }\n\n          var promiseChain = null;\n          $modal.getPromiseChain = function() {\n            return promiseChain;\n          };\n\n          $modal.open = function(modalOptions) {\n            var modalResultDeferred = $q.defer();\n            var modalOpenedDeferred = $q.defer();\n            var modalClosedDeferred = $q.defer();\n            var modalRenderDeferred = $q.defer();\n\n            //prepare an instance of a modal to be injected into controllers and returned to a caller\n            var modalInstance = {\n              result: modalResultDeferred.promise,\n              opened: modalOpenedDeferred.promise,\n              closed: modalClosedDeferred.promise,\n              rendered: modalRenderDeferred.promise,\n              close: function (result) {\n                return $modalStack.close(modalInstance, result);\n              },\n              dismiss: function (reason) {\n                return $modalStack.dismiss(modalInstance, reason);\n              }\n            };\n\n            //merge and clean up options\n            modalOptions = angular.extend({}, $modalProvider.options, modalOptions);\n            modalOptions.resolve = modalOptions.resolve || {};\n            modalOptions.appendTo = modalOptions.appendTo || $document.find('body').eq(0);\n\n            if (!modalOptions.appendTo.length) {\n              throw new Error('appendTo element not found. Make sure that the element passed is in DOM.');\n            }\n\n            //verify options\n            if (!modalOptions.component && !modalOptions.template && !modalOptions.templateUrl) {\n              throw new Error('One of component or template or templateUrl options is required.');\n            }\n\n            var templateAndResolvePromise;\n            if (modalOptions.component) {\n              templateAndResolvePromise = $q.when($uibResolve.resolve(modalOptions.resolve, {}, null, null));\n            } else {\n              templateAndResolvePromise =\n                $q.all([getTemplatePromise(modalOptions), $uibResolve.resolve(modalOptions.resolve, {}, null, null)]);\n            }\n\n            function resolveWithTemplate() {\n              return templateAndResolvePromise;\n            }\n\n            // Wait for the resolution of the existing promise chain.\n            // Then switch to our own combined promise dependency (regardless of how the previous modal fared).\n            // Then add to $modalStack and resolve opened.\n            // Finally clean up the chain variable if no subsequent modal has overwritten it.\n            var samePromise;\n            samePromise = promiseChain = $q.all([promiseChain])\n              .then(resolveWithTemplate, resolveWithTemplate)\n              .then(function resolveSuccess(tplAndVars) {\n                var providedScope = modalOptions.scope || $rootScope;\n\n                var modalScope = providedScope.$new();\n                modalScope.$close = modalInstance.close;\n                modalScope.$dismiss = modalInstance.dismiss;\n\n                modalScope.$on('$destroy', function() {\n                  if (!modalScope.$$uibDestructionScheduled) {\n                    modalScope.$dismiss('$uibUnscheduledDestruction');\n                  }\n                });\n\n                var modal = {\n                  scope: modalScope,\n                  deferred: modalResultDeferred,\n                  renderDeferred: modalRenderDeferred,\n                  closedDeferred: modalClosedDeferred,\n                  animation: modalOptions.animation,\n                  backdrop: modalOptions.backdrop,\n                  keyboard: modalOptions.keyboard,\n                  backdropClass: modalOptions.backdropClass,\n                  windowTopClass: modalOptions.windowTopClass,\n                  windowClass: modalOptions.windowClass,\n                  windowTemplateUrl: modalOptions.windowTemplateUrl,\n                  ariaLabelledBy: modalOptions.ariaLabelledBy,\n                  ariaDescribedBy: modalOptions.ariaDescribedBy,\n                  size: modalOptions.size,\n                  openedClass: modalOptions.openedClass,\n                  appendTo: modalOptions.appendTo\n                };\n\n                var component = {};\n                var ctrlInstance, ctrlInstantiate, ctrlLocals = {};\n\n                if (modalOptions.component) {\n                  constructLocals(component, false, true, false);\n                  component.name = modalOptions.component;\n                  modal.component = component;\n                } else if (modalOptions.controller) {\n                  constructLocals(ctrlLocals, true, false, true);\n\n                  // the third param will make the controller instantiate later,private api\n                  // @see https://github.com/angular/angular.js/blob/master/src/ng/controller.js#L126\n                  ctrlInstantiate = $controller(modalOptions.controller, ctrlLocals, true, modalOptions.controllerAs);\n                  if (modalOptions.controllerAs && modalOptions.bindToController) {\n                    ctrlInstance = ctrlInstantiate.instance;\n                    ctrlInstance.$close = modalScope.$close;\n                    ctrlInstance.$dismiss = modalScope.$dismiss;\n                    angular.extend(ctrlInstance, {\n                      $resolve: ctrlLocals.$scope.$resolve\n                    }, providedScope);\n                  }\n\n                  ctrlInstance = ctrlInstantiate();\n\n                  if (angular.isFunction(ctrlInstance.$onInit)) {\n                    ctrlInstance.$onInit();\n                  }\n                }\n\n                if (!modalOptions.component) {\n                  modal.content = tplAndVars[0];\n                }\n\n                $modalStack.open(modalInstance, modal);\n                modalOpenedDeferred.resolve(true);\n\n                function constructLocals(obj, template, instanceOnScope, injectable) {\n                  obj.$scope = modalScope;\n                  obj.$scope.$resolve = {};\n                  if (instanceOnScope) {\n                    obj.$scope.$uibModalInstance = modalInstance;\n                  } else {\n                    obj.$uibModalInstance = modalInstance;\n                  }\n\n                  var resolves = template ? tplAndVars[1] : tplAndVars;\n                  angular.forEach(resolves, function(value, key) {\n                    if (injectable) {\n                      obj[key] = value;\n                    }\n\n                    obj.$scope.$resolve[key] = value;\n                  });\n                }\n            }, function resolveError(reason) {\n              modalOpenedDeferred.reject(reason);\n              modalResultDeferred.reject(reason);\n            })['finally'](function() {\n              if (promiseChain === samePromise) {\n                promiseChain = null;\n              }\n            });\n\n            return modalInstance;\n          };\n\n          return $modal;\n        }\n      ]\n    };\n\n    return $modalProvider;\n  });\n\nangular.module('ui.bootstrap.paging', [])\n/**\n * Helper internal service for generating common controller code between the\n * pager and pagination components\n */\n.factory('uibPaging', ['$parse', function($parse) {\n  return {\n    create: function(ctrl, $scope, $attrs) {\n      ctrl.setNumPages = $attrs.numPages ? $parse($attrs.numPages).assign : angular.noop;\n      ctrl.ngModelCtrl = { $setViewValue: angular.noop }; // nullModelCtrl\n      ctrl._watchers = [];\n\n      ctrl.init = function(ngModelCtrl, config) {\n        ctrl.ngModelCtrl = ngModelCtrl;\n        ctrl.config = config;\n\n        ngModelCtrl.$render = function() {\n          ctrl.render();\n        };\n\n        if ($attrs.itemsPerPage) {\n          ctrl._watchers.push($scope.$parent.$watch($attrs.itemsPerPage, function(value) {\n            ctrl.itemsPerPage = parseInt(value, 10);\n            $scope.totalPages = ctrl.calculateTotalPages();\n            ctrl.updatePage();\n          }));\n        } else {\n          ctrl.itemsPerPage = config.itemsPerPage;\n        }\n\n        $scope.$watch('totalItems', function(newTotal, oldTotal) {\n          if (angular.isDefined(newTotal) || newTotal !== oldTotal) {\n            $scope.totalPages = ctrl.calculateTotalPages();\n            ctrl.updatePage();\n          }\n        });\n      };\n\n      ctrl.calculateTotalPages = function() {\n        var totalPages = ctrl.itemsPerPage < 1 ? 1 : Math.ceil($scope.totalItems / ctrl.itemsPerPage);\n        return Math.max(totalPages || 0, 1);\n      };\n\n      ctrl.render = function() {\n        $scope.page = parseInt(ctrl.ngModelCtrl.$viewValue, 10) || 1;\n      };\n\n      $scope.selectPage = function(page, evt) {\n        if (evt) {\n          evt.preventDefault();\n        }\n\n        var clickAllowed = !$scope.ngDisabled || !evt;\n        if (clickAllowed && $scope.page !== page && page > 0 && page <= $scope.totalPages) {\n          if (evt && evt.target) {\n            evt.target.blur();\n          }\n          ctrl.ngModelCtrl.$setViewValue(page);\n          ctrl.ngModelCtrl.$render();\n        }\n      };\n\n      $scope.getText = function(key) {\n        return $scope[key + 'Text'] || ctrl.config[key + 'Text'];\n      };\n\n      $scope.noPrevious = function() {\n        return $scope.page === 1;\n      };\n\n      $scope.noNext = function() {\n        return $scope.page === $scope.totalPages;\n      };\n\n      ctrl.updatePage = function() {\n        ctrl.setNumPages($scope.$parent, $scope.totalPages); // Readonly variable\n\n        if ($scope.page > $scope.totalPages) {\n          $scope.selectPage($scope.totalPages);\n        } else {\n          ctrl.ngModelCtrl.$render();\n        }\n      };\n\n      $scope.$on('$destroy', function() {\n        while (ctrl._watchers.length) {\n          ctrl._watchers.shift()();\n        }\n      });\n    }\n  };\n}]);\n\nangular.module('ui.bootstrap.pager', ['ui.bootstrap.paging', 'ui.bootstrap.tabindex'])\n\n.controller('UibPagerController', ['$scope', '$attrs', 'uibPaging', 'uibPagerConfig', function($scope, $attrs, uibPaging, uibPagerConfig) {\n  $scope.align = angular.isDefined($attrs.align) ? $scope.$parent.$eval($attrs.align) : uibPagerConfig.align;\n\n  uibPaging.create(this, $scope, $attrs);\n}])\n\n.constant('uibPagerConfig', {\n  itemsPerPage: 10,\n  previousText: '« Previous',\n  nextText: 'Next »',\n  align: true\n})\n\n.directive('uibPager', ['uibPagerConfig', function(uibPagerConfig) {\n  return {\n    scope: {\n      totalItems: '=',\n      previousText: '@',\n      nextText: '@',\n      ngDisabled: '='\n    },\n    require: ['uibPager', '?ngModel'],\n    restrict: 'A',\n    controller: 'UibPagerController',\n    controllerAs: 'pager',\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/pager/pager.html';\n    },\n    link: function(scope, element, attrs, ctrls) {\n      element.addClass('pager');\n      var paginationCtrl = ctrls[0], ngModelCtrl = ctrls[1];\n\n      if (!ngModelCtrl) {\n        return; // do nothing if no ng-model\n      }\n\n      paginationCtrl.init(ngModelCtrl, uibPagerConfig);\n    }\n  };\n}]);\n\nangular.module('ui.bootstrap.pagination', ['ui.bootstrap.paging', 'ui.bootstrap.tabindex'])\n.controller('UibPaginationController', ['$scope', '$attrs', '$parse', 'uibPaging', 'uibPaginationConfig', function($scope, $attrs, $parse, uibPaging, uibPaginationConfig) {\n  var ctrl = this;\n  // Setup configuration parameters\n  var maxSize = angular.isDefined($attrs.maxSize) ? $scope.$parent.$eval($attrs.maxSize) : uibPaginationConfig.maxSize,\n    rotate = angular.isDefined($attrs.rotate) ? $scope.$parent.$eval($attrs.rotate) : uibPaginationConfig.rotate,\n    forceEllipses = angular.isDefined($attrs.forceEllipses) ? $scope.$parent.$eval($attrs.forceEllipses) : uibPaginationConfig.forceEllipses,\n    boundaryLinkNumbers = angular.isDefined($attrs.boundaryLinkNumbers) ? $scope.$parent.$eval($attrs.boundaryLinkNumbers) : uibPaginationConfig.boundaryLinkNumbers,\n    pageLabel = angular.isDefined($attrs.pageLabel) ? function(idx) { return $scope.$parent.$eval($attrs.pageLabel, {$page: idx}); } : angular.identity;\n  $scope.boundaryLinks = angular.isDefined($attrs.boundaryLinks) ? $scope.$parent.$eval($attrs.boundaryLinks) : uibPaginationConfig.boundaryLinks;\n  $scope.directionLinks = angular.isDefined($attrs.directionLinks) ? $scope.$parent.$eval($attrs.directionLinks) : uibPaginationConfig.directionLinks;\n  $attrs.$set('role', 'menu');\n\n  uibPaging.create(this, $scope, $attrs);\n\n  if ($attrs.maxSize) {\n    ctrl._watchers.push($scope.$parent.$watch($parse($attrs.maxSize), function(value) {\n      maxSize = parseInt(value, 10);\n      ctrl.render();\n    }));\n  }\n\n  // Create page object used in template\n  function makePage(number, text, isActive) {\n    return {\n      number: number,\n      text: text,\n      active: isActive\n    };\n  }\n\n  function getPages(currentPage, totalPages) {\n    var pages = [];\n\n    // Default page limits\n    var startPage = 1, endPage = totalPages;\n    var isMaxSized = angular.isDefined(maxSize) && maxSize < totalPages;\n\n    // recompute if maxSize\n    if (isMaxSized) {\n      if (rotate) {\n        // Current page is displayed in the middle of the visible ones\n        startPage = Math.max(currentPage - Math.floor(maxSize / 2), 1);\n        endPage = startPage + maxSize - 1;\n\n        // Adjust if limit is exceeded\n        if (endPage > totalPages) {\n          endPage = totalPages;\n          startPage = endPage - maxSize + 1;\n        }\n      } else {\n        // Visible pages are paginated with maxSize\n        startPage = (Math.ceil(currentPage / maxSize) - 1) * maxSize + 1;\n\n        // Adjust last page if limit is exceeded\n        endPage = Math.min(startPage + maxSize - 1, totalPages);\n      }\n    }\n\n    // Add page number links\n    for (var number = startPage; number <= endPage; number++) {\n      var page = makePage(number, pageLabel(number), number === currentPage);\n      pages.push(page);\n    }\n\n    // Add links to move between page sets\n    if (isMaxSized && maxSize > 0 && (!rotate || forceEllipses || boundaryLinkNumbers)) {\n      if (startPage > 1) {\n        if (!boundaryLinkNumbers || startPage > 3) { //need ellipsis for all options unless range is too close to beginning\n        var previousPageSet = makePage(startPage - 1, '...', false);\n        pages.unshift(previousPageSet);\n      }\n        if (boundaryLinkNumbers) {\n          if (startPage === 3) { //need to replace ellipsis when the buttons would be sequential\n            var secondPageLink = makePage(2, '2', false);\n            pages.unshift(secondPageLink);\n          }\n          //add the first page\n          var firstPageLink = makePage(1, '1', false);\n          pages.unshift(firstPageLink);\n        }\n      }\n\n      if (endPage < totalPages) {\n        if (!boundaryLinkNumbers || endPage < totalPages - 2) { //need ellipsis for all options unless range is too close to end\n        var nextPageSet = makePage(endPage + 1, '...', false);\n        pages.push(nextPageSet);\n      }\n        if (boundaryLinkNumbers) {\n          if (endPage === totalPages - 2) { //need to replace ellipsis when the buttons would be sequential\n            var secondToLastPageLink = makePage(totalPages - 1, totalPages - 1, false);\n            pages.push(secondToLastPageLink);\n          }\n          //add the last page\n          var lastPageLink = makePage(totalPages, totalPages, false);\n          pages.push(lastPageLink);\n        }\n      }\n    }\n    return pages;\n  }\n\n  var originalRender = this.render;\n  this.render = function() {\n    originalRender();\n    if ($scope.page > 0 && $scope.page <= $scope.totalPages) {\n      $scope.pages = getPages($scope.page, $scope.totalPages);\n    }\n  };\n}])\n\n.constant('uibPaginationConfig', {\n  itemsPerPage: 10,\n  boundaryLinks: false,\n  boundaryLinkNumbers: false,\n  directionLinks: true,\n  firstText: 'First',\n  previousText: 'Previous',\n  nextText: 'Next',\n  lastText: 'Last',\n  rotate: true,\n  forceEllipses: false\n})\n\n.directive('uibPagination', ['$parse', 'uibPaginationConfig', function($parse, uibPaginationConfig) {\n  return {\n    scope: {\n      totalItems: '=',\n      firstText: '@',\n      previousText: '@',\n      nextText: '@',\n      lastText: '@',\n      ngDisabled:'='\n    },\n    require: ['uibPagination', '?ngModel'],\n    restrict: 'A',\n    controller: 'UibPaginationController',\n    controllerAs: 'pagination',\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/pagination/pagination.html';\n    },\n    link: function(scope, element, attrs, ctrls) {\n      element.addClass('pagination');\n      var paginationCtrl = ctrls[0], ngModelCtrl = ctrls[1];\n\n      if (!ngModelCtrl) {\n         return; // do nothing if no ng-model\n      }\n\n      paginationCtrl.init(ngModelCtrl, uibPaginationConfig);\n    }\n  };\n}]);\n\n/**\n * The following features are still outstanding: animation as a\n * function, placement as a function, inside, support for more triggers than\n * just mouse enter/leave, html tooltips, and selector delegation.\n */\nangular.module('ui.bootstrap.tooltip', ['ui.bootstrap.position', 'ui.bootstrap.stackedMap'])\n\n/**\n * The $tooltip service creates tooltip- and popover-like directives as well as\n * houses global options for them.\n */\n.provider('$uibTooltip', function() {\n  // The default options tooltip and popover.\n  var defaultOptions = {\n    placement: 'top',\n    placementClassPrefix: '',\n    animation: true,\n    popupDelay: 0,\n    popupCloseDelay: 0,\n    useContentExp: false\n  };\n\n  // Default hide triggers for each show trigger\n  var triggerMap = {\n    'mouseenter': 'mouseleave',\n    'click': 'click',\n    'outsideClick': 'outsideClick',\n    'focus': 'blur',\n    'none': ''\n  };\n\n  // The options specified to the provider globally.\n  var globalOptions = {};\n\n  /**\n   * `options({})` allows global configuration of all tooltips in the\n   * application.\n   *\n   *   var app = angular.module( 'App', ['ui.bootstrap.tooltip'], function( $tooltipProvider ) {\n   *     // place tooltips left instead of top by default\n   *     $tooltipProvider.options( { placement: 'left' } );\n   *   });\n   */\n\tthis.options = function(value) {\n\t\tangular.extend(globalOptions, value);\n\t};\n\n  /**\n   * This allows you to extend the set of trigger mappings available. E.g.:\n   *\n   *   $tooltipProvider.setTriggers( { 'openTrigger': 'closeTrigger' } );\n   */\n  this.setTriggers = function setTriggers(triggers) {\n    angular.extend(triggerMap, triggers);\n  };\n\n  /**\n   * This is a helper function for translating camel-case to snake_case.\n   */\n  function snake_case(name) {\n    var regexp = /[A-Z]/g;\n    var separator = '-';\n    return name.replace(regexp, function(letter, pos) {\n      return (pos ? separator : '') + letter.toLowerCase();\n    });\n  }\n\n  /**\n   * Returns the actual instance of the $tooltip service.\n   * TODO support multiple triggers\n   */\n  this.$get = ['$window', '$compile', '$timeout', '$document', '$uibPosition', '$interpolate', '$rootScope', '$parse', '$$stackedMap', function($window, $compile, $timeout, $document, $position, $interpolate, $rootScope, $parse, $$stackedMap) {\n    var openedTooltips = $$stackedMap.createNew();\n    $document.on('keyup', keypressListener);\n\n    $rootScope.$on('$destroy', function() {\n      $document.off('keyup', keypressListener);\n    });\n\n    function keypressListener(e) {\n      if (e.which === 27) {\n        var last = openedTooltips.top();\n        if (last) {\n          last.value.close();\n          last = null;\n        }\n      }\n    }\n\n    return function $tooltip(ttType, prefix, defaultTriggerShow, options) {\n      options = angular.extend({}, defaultOptions, globalOptions, options);\n\n      /**\n       * Returns an object of show and hide triggers.\n       *\n       * If a trigger is supplied,\n       * it is used to show the tooltip; otherwise, it will use the `trigger`\n       * option passed to the `$tooltipProvider.options` method; else it will\n       * default to the trigger supplied to this directive factory.\n       *\n       * The hide trigger is based on the show trigger. If the `trigger` option\n       * was passed to the `$tooltipProvider.options` method, it will use the\n       * mapped trigger from `triggerMap` or the passed trigger if the map is\n       * undefined; otherwise, it uses the `triggerMap` value of the show\n       * trigger; else it will just use the show trigger.\n       */\n      function getTriggers(trigger) {\n        var show = (trigger || options.trigger || defaultTriggerShow).split(' ');\n        var hide = show.map(function(trigger) {\n          return triggerMap[trigger] || trigger;\n        });\n        return {\n          show: show,\n          hide: hide\n        };\n      }\n\n      var directiveName = snake_case(ttType);\n\n      var startSym = $interpolate.startSymbol();\n      var endSym = $interpolate.endSymbol();\n      var template =\n        '<div '+ directiveName + '-popup ' +\n          'uib-title=\"' + startSym + 'title' + endSym + '\" ' +\n          (options.useContentExp ?\n            'content-exp=\"contentExp()\" ' :\n            'content=\"' + startSym + 'content' + endSym + '\" ') +\n          'origin-scope=\"origScope\" ' +\n          'class=\"uib-position-measure ' + prefix + '\" ' +\n          'tooltip-animation-class=\"fade\"' +\n          'uib-tooltip-classes ' +\n          'ng-class=\"{ in: isOpen }\" ' +\n          '>' +\n        '</div>';\n\n      return {\n        compile: function(tElem, tAttrs) {\n          var tooltipLinker = $compile(template);\n\n          return function link(scope, element, attrs, tooltipCtrl) {\n            var tooltip;\n            var tooltipLinkedScope;\n            var transitionTimeout;\n            var showTimeout;\n            var hideTimeout;\n            var positionTimeout;\n            var adjustmentTimeout;\n            var appendToBody = angular.isDefined(options.appendToBody) ? options.appendToBody : false;\n            var triggers = getTriggers(undefined);\n            var hasEnableExp = angular.isDefined(attrs[prefix + 'Enable']);\n            var ttScope = scope.$new(true);\n            var repositionScheduled = false;\n            var isOpenParse = angular.isDefined(attrs[prefix + 'IsOpen']) ? $parse(attrs[prefix + 'IsOpen']) : false;\n            var contentParse = options.useContentExp ? $parse(attrs[ttType]) : false;\n            var observers = [];\n            var lastPlacement;\n\n            var positionTooltip = function() {\n              // check if tooltip exists and is not empty\n              if (!tooltip || !tooltip.html()) { return; }\n\n              if (!positionTimeout) {\n                positionTimeout = $timeout(function() {\n                  var ttPosition = $position.positionElements(element, tooltip, ttScope.placement, appendToBody);\n                  var initialHeight = angular.isDefined(tooltip.offsetHeight) ? tooltip.offsetHeight : tooltip.prop('offsetHeight');\n                  var elementPos = appendToBody ? $position.offset(element) : $position.position(element);\n                  tooltip.css({ top: ttPosition.top + 'px', left: ttPosition.left + 'px' });\n                  var placementClasses = ttPosition.placement.split('-');\n\n                  if (!tooltip.hasClass(placementClasses[0])) {\n                    tooltip.removeClass(lastPlacement.split('-')[0]);\n                    tooltip.addClass(placementClasses[0]);\n                  }\n\n                  if (!tooltip.hasClass(options.placementClassPrefix + ttPosition.placement)) {\n                    tooltip.removeClass(options.placementClassPrefix + lastPlacement);\n                    tooltip.addClass(options.placementClassPrefix + ttPosition.placement);\n                  }\n\n                  adjustmentTimeout = $timeout(function() {\n                    var currentHeight = angular.isDefined(tooltip.offsetHeight) ? tooltip.offsetHeight : tooltip.prop('offsetHeight');\n                    var adjustment = $position.adjustTop(placementClasses, elementPos, initialHeight, currentHeight);\n                    if (adjustment) {\n                      tooltip.css(adjustment);\n                    }\n                    adjustmentTimeout = null;\n                  }, 0, false);\n\n                  // first time through tt element will have the\n                  // uib-position-measure class or if the placement\n                  // has changed we need to position the arrow.\n                  if (tooltip.hasClass('uib-position-measure')) {\n                    $position.positionArrow(tooltip, ttPosition.placement);\n                    tooltip.removeClass('uib-position-measure');\n                  } else if (lastPlacement !== ttPosition.placement) {\n                    $position.positionArrow(tooltip, ttPosition.placement);\n                  }\n                  lastPlacement = ttPosition.placement;\n\n                  positionTimeout = null;\n                }, 0, false);\n              }\n            };\n\n            // Set up the correct scope to allow transclusion later\n            ttScope.origScope = scope;\n\n            // By default, the tooltip is not open.\n            // TODO add ability to start tooltip opened\n            ttScope.isOpen = false;\n\n            function toggleTooltipBind() {\n              if (!ttScope.isOpen) {\n                showTooltipBind();\n              } else {\n                hideTooltipBind();\n              }\n            }\n\n            // Show the tooltip with delay if specified, otherwise show it immediately\n            function showTooltipBind() {\n              if (hasEnableExp && !scope.$eval(attrs[prefix + 'Enable'])) {\n                return;\n              }\n\n              cancelHide();\n              prepareTooltip();\n\n              if (ttScope.popupDelay) {\n                // Do nothing if the tooltip was already scheduled to pop-up.\n                // This happens if show is triggered multiple times before any hide is triggered.\n                if (!showTimeout) {\n                  showTimeout = $timeout(show, ttScope.popupDelay, false);\n                }\n              } else {\n                show();\n              }\n            }\n\n            function hideTooltipBind() {\n              cancelShow();\n\n              if (ttScope.popupCloseDelay) {\n                if (!hideTimeout) {\n                  hideTimeout = $timeout(hide, ttScope.popupCloseDelay, false);\n                }\n              } else {\n                hide();\n              }\n            }\n\n            // Show the tooltip popup element.\n            function show() {\n              cancelShow();\n              cancelHide();\n\n              // Don't show empty tooltips.\n              if (!ttScope.content) {\n                return angular.noop;\n              }\n\n              createTooltip();\n\n              // And show the tooltip.\n              ttScope.$evalAsync(function() {\n                ttScope.isOpen = true;\n                assignIsOpen(true);\n                positionTooltip();\n              });\n            }\n\n            function cancelShow() {\n              if (showTimeout) {\n                $timeout.cancel(showTimeout);\n                showTimeout = null;\n              }\n\n              if (positionTimeout) {\n                $timeout.cancel(positionTimeout);\n                positionTimeout = null;\n              }\n            }\n\n            // Hide the tooltip popup element.\n            function hide() {\n              if (!ttScope) {\n                return;\n              }\n\n              // First things first: we don't show it anymore.\n              ttScope.$evalAsync(function() {\n                if (ttScope) {\n                  ttScope.isOpen = false;\n                  assignIsOpen(false);\n                  // And now we remove it from the DOM. However, if we have animation, we\n                  // need to wait for it to expire beforehand.\n                  // FIXME: this is a placeholder for a port of the transitions library.\n                  // The fade transition in TWBS is 150ms.\n                  if (ttScope.animation) {\n                    if (!transitionTimeout) {\n                      transitionTimeout = $timeout(removeTooltip, 150, false);\n                    }\n                  } else {\n                    removeTooltip();\n                  }\n                }\n              });\n            }\n\n            function cancelHide() {\n              if (hideTimeout) {\n                $timeout.cancel(hideTimeout);\n                hideTimeout = null;\n              }\n\n              if (transitionTimeout) {\n                $timeout.cancel(transitionTimeout);\n                transitionTimeout = null;\n              }\n            }\n\n            function createTooltip() {\n              // There can only be one tooltip element per directive shown at once.\n              if (tooltip) {\n                return;\n              }\n\n              tooltipLinkedScope = ttScope.$new();\n              tooltip = tooltipLinker(tooltipLinkedScope, function(tooltip) {\n                if (appendToBody) {\n                  $document.find('body').append(tooltip);\n                } else {\n                  element.after(tooltip);\n                }\n              });\n\n              openedTooltips.add(ttScope, {\n                close: hide\n              });\n\n              prepObservers();\n            }\n\n            function removeTooltip() {\n              cancelShow();\n              cancelHide();\n              unregisterObservers();\n\n              if (tooltip) {\n                tooltip.remove();\n                \n                tooltip = null;\n                if (adjustmentTimeout) {\n                  $timeout.cancel(adjustmentTimeout);\n                }\n              }\n\n              openedTooltips.remove(ttScope);\n              \n              if (tooltipLinkedScope) {\n                tooltipLinkedScope.$destroy();\n                tooltipLinkedScope = null;\n              }\n            }\n\n            /**\n             * Set the initial scope values. Once\n             * the tooltip is created, the observers\n             * will be added to keep things in sync.\n             */\n            function prepareTooltip() {\n              ttScope.title = attrs[prefix + 'Title'];\n              if (contentParse) {\n                ttScope.content = contentParse(scope);\n              } else {\n                ttScope.content = attrs[ttType];\n              }\n\n              ttScope.popupClass = attrs[prefix + 'Class'];\n              ttScope.placement = angular.isDefined(attrs[prefix + 'Placement']) ? attrs[prefix + 'Placement'] : options.placement;\n              var placement = $position.parsePlacement(ttScope.placement);\n              lastPlacement = placement[1] ? placement[0] + '-' + placement[1] : placement[0];\n\n              var delay = parseInt(attrs[prefix + 'PopupDelay'], 10);\n              var closeDelay = parseInt(attrs[prefix + 'PopupCloseDelay'], 10);\n              ttScope.popupDelay = !isNaN(delay) ? delay : options.popupDelay;\n              ttScope.popupCloseDelay = !isNaN(closeDelay) ? closeDelay : options.popupCloseDelay;\n            }\n\n            function assignIsOpen(isOpen) {\n              if (isOpenParse && angular.isFunction(isOpenParse.assign)) {\n                isOpenParse.assign(scope, isOpen);\n              }\n            }\n\n            ttScope.contentExp = function() {\n              return ttScope.content;\n            };\n\n            /**\n             * Observe the relevant attributes.\n             */\n            attrs.$observe('disabled', function(val) {\n              if (val) {\n                cancelShow();\n              }\n\n              if (val && ttScope.isOpen) {\n                hide();\n              }\n            });\n\n            if (isOpenParse) {\n              scope.$watch(isOpenParse, function(val) {\n                if (ttScope && !val === ttScope.isOpen) {\n                  toggleTooltipBind();\n                }\n              });\n            }\n\n            function prepObservers() {\n              observers.length = 0;\n\n              if (contentParse) {\n                observers.push(\n                  scope.$watch(contentParse, function(val) {\n                    ttScope.content = val;\n                    if (!val && ttScope.isOpen) {\n                      hide();\n                    }\n                  })\n                );\n\n                observers.push(\n                  tooltipLinkedScope.$watch(function() {\n                    if (!repositionScheduled) {\n                      repositionScheduled = true;\n                      tooltipLinkedScope.$$postDigest(function() {\n                        repositionScheduled = false;\n                        if (ttScope && ttScope.isOpen) {\n                          positionTooltip();\n                        }\n                      });\n                    }\n                  })\n                );\n              } else {\n                observers.push(\n                  attrs.$observe(ttType, function(val) {\n                    ttScope.content = val;\n                    if (!val && ttScope.isOpen) {\n                      hide();\n                    } else {\n                      positionTooltip();\n                    }\n                  })\n                );\n              }\n\n              observers.push(\n                attrs.$observe(prefix + 'Title', function(val) {\n                  ttScope.title = val;\n                  if (ttScope.isOpen) {\n                    positionTooltip();\n                  }\n                })\n              );\n\n              observers.push(\n                attrs.$observe(prefix + 'Placement', function(val) {\n                  ttScope.placement = val ? val : options.placement;\n                  if (ttScope.isOpen) {\n                    positionTooltip();\n                  }\n                })\n              );\n            }\n\n            function unregisterObservers() {\n              if (observers.length) {\n                angular.forEach(observers, function(observer) {\n                  observer();\n                });\n                observers.length = 0;\n              }\n            }\n\n            // hide tooltips/popovers for outsideClick trigger\n            function bodyHideTooltipBind(e) {\n              if (!ttScope || !ttScope.isOpen || !tooltip) {\n                return;\n              }\n              // make sure the tooltip/popover link or tool tooltip/popover itself were not clicked\n              if (!element[0].contains(e.target) && !tooltip[0].contains(e.target)) {\n                hideTooltipBind();\n              }\n            }\n\n            // KeyboardEvent handler to hide the tooltip on Escape key press\n            function hideOnEscapeKey(e) {\n              if (e.which === 27) {\n                hideTooltipBind();\n              }\n            }\n\n            var unregisterTriggers = function() {\n              triggers.show.forEach(function(trigger) {\n                if (trigger === 'outsideClick') {\n                  element.off('click', toggleTooltipBind);\n                } else {\n                  element.off(trigger, showTooltipBind);\n                  element.off(trigger, toggleTooltipBind);\n                }\n                element.off('keypress', hideOnEscapeKey);\n              });\n              triggers.hide.forEach(function(trigger) {\n                if (trigger === 'outsideClick') {\n                  $document.off('click', bodyHideTooltipBind);\n                } else {\n                  element.off(trigger, hideTooltipBind);\n                }\n              });\n            };\n\n            function prepTriggers() {\n              var showTriggers = [], hideTriggers = [];\n              var val = scope.$eval(attrs[prefix + 'Trigger']);\n              unregisterTriggers();\n\n              if (angular.isObject(val)) {\n                Object.keys(val).forEach(function(key) {\n                  showTriggers.push(key);\n                  hideTriggers.push(val[key]);\n                });\n                triggers = {\n                  show: showTriggers,\n                  hide: hideTriggers\n                };\n              } else {\n                triggers = getTriggers(val);\n              }\n\n              if (triggers.show !== 'none') {\n                triggers.show.forEach(function(trigger, idx) {\n                  if (trigger === 'outsideClick') {\n                    element.on('click', toggleTooltipBind);\n                    $document.on('click', bodyHideTooltipBind);\n                  } else if (trigger === triggers.hide[idx]) {\n                    element.on(trigger, toggleTooltipBind);\n                  } else if (trigger) {\n                    element.on(trigger, showTooltipBind);\n                    element.on(triggers.hide[idx], hideTooltipBind);\n                  }\n                  element.on('keypress', hideOnEscapeKey);\n                });\n              }\n            }\n\n            prepTriggers();\n\n            var animation = scope.$eval(attrs[prefix + 'Animation']);\n            ttScope.animation = angular.isDefined(animation) ? !!animation : options.animation;\n\n            var appendToBodyVal;\n            var appendKey = prefix + 'AppendToBody';\n            if (appendKey in attrs && attrs[appendKey] === undefined) {\n              appendToBodyVal = true;\n            } else {\n              appendToBodyVal = scope.$eval(attrs[appendKey]);\n            }\n\n            appendToBody = angular.isDefined(appendToBodyVal) ? appendToBodyVal : appendToBody;\n\n            // Make sure tooltip is destroyed and removed.\n            scope.$on('$destroy', function onDestroyTooltip() {\n              unregisterTriggers();\n              removeTooltip();\n              ttScope = null;\n            });\n          };\n        }\n      };\n    };\n  }];\n})\n\n// This is mostly ngInclude code but with a custom scope\n.directive('uibTooltipTemplateTransclude', [\n         '$animate', '$sce', '$compile', '$templateRequest',\nfunction ($animate, $sce, $compile, $templateRequest) {\n  return {\n    link: function(scope, elem, attrs) {\n      var origScope = scope.$eval(attrs.tooltipTemplateTranscludeScope);\n\n      var changeCounter = 0,\n        currentScope,\n        previousElement,\n        currentElement;\n\n      var cleanupLastIncludeContent = function() {\n        if (previousElement) {\n          previousElement.remove();\n          previousElement = null;\n        }\n\n        if (currentScope) {\n          currentScope.$destroy();\n          currentScope = null;\n        }\n\n        if (currentElement) {\n          $animate.leave(currentElement).then(function() {\n            previousElement = null;\n          });\n          previousElement = currentElement;\n          currentElement = null;\n        }\n      };\n\n      scope.$watch($sce.parseAsResourceUrl(attrs.uibTooltipTemplateTransclude), function(src) {\n        var thisChangeId = ++changeCounter;\n\n        if (src) {\n          //set the 2nd param to true to ignore the template request error so that the inner\n          //contents and scope can be cleaned up.\n          $templateRequest(src, true).then(function(response) {\n            if (thisChangeId !== changeCounter) { return; }\n            var newScope = origScope.$new();\n            var template = response;\n\n            var clone = $compile(template)(newScope, function(clone) {\n              cleanupLastIncludeContent();\n              $animate.enter(clone, elem);\n            });\n\n            currentScope = newScope;\n            currentElement = clone;\n\n            currentScope.$emit('$includeContentLoaded', src);\n          }, function() {\n            if (thisChangeId === changeCounter) {\n              cleanupLastIncludeContent();\n              scope.$emit('$includeContentError', src);\n            }\n          });\n          scope.$emit('$includeContentRequested', src);\n        } else {\n          cleanupLastIncludeContent();\n        }\n      });\n\n      scope.$on('$destroy', cleanupLastIncludeContent);\n    }\n  };\n}])\n\n/**\n * Note that it's intentional that these classes are *not* applied through $animate.\n * They must not be animated as they're expected to be present on the tooltip on\n * initialization.\n */\n.directive('uibTooltipClasses', ['$uibPosition', function($uibPosition) {\n  return {\n    restrict: 'A',\n    link: function(scope, element, attrs) {\n      // need to set the primary position so the\n      // arrow has space during position measure.\n      // tooltip.positionTooltip()\n      if (scope.placement) {\n        // // There are no top-left etc... classes\n        // // in TWBS, so we need the primary position.\n        var position = $uibPosition.parsePlacement(scope.placement);\n        element.addClass(position[0]);\n      }\n\n      if (scope.popupClass) {\n        element.addClass(scope.popupClass);\n      }\n\n      if (scope.animation) {\n        element.addClass(attrs.tooltipAnimationClass);\n      }\n    }\n  };\n}])\n\n.directive('uibTooltipPopup', function() {\n  return {\n    restrict: 'A',\n    scope: { content: '@' },\n    templateUrl: 'uib/template/tooltip/tooltip-popup.html'\n  };\n})\n\n.directive('uibTooltip', [ '$uibTooltip', function($uibTooltip) {\n  return $uibTooltip('uibTooltip', 'tooltip', 'mouseenter');\n}])\n\n.directive('uibTooltipTemplatePopup', function() {\n  return {\n    restrict: 'A',\n    scope: { contentExp: '&', originScope: '&' },\n    templateUrl: 'uib/template/tooltip/tooltip-template-popup.html'\n  };\n})\n\n.directive('uibTooltipTemplate', ['$uibTooltip', function($uibTooltip) {\n  return $uibTooltip('uibTooltipTemplate', 'tooltip', 'mouseenter', {\n    useContentExp: true\n  });\n}])\n\n.directive('uibTooltipHtmlPopup', function() {\n  return {\n    restrict: 'A',\n    scope: { contentExp: '&' },\n    templateUrl: 'uib/template/tooltip/tooltip-html-popup.html'\n  };\n})\n\n.directive('uibTooltipHtml', ['$uibTooltip', function($uibTooltip) {\n  return $uibTooltip('uibTooltipHtml', 'tooltip', 'mouseenter', {\n    useContentExp: true\n  });\n}]);\n\n/**\n * The following features are still outstanding: popup delay, animation as a\n * function, placement as a function, inside, support for more triggers than\n * just mouse enter/leave, and selector delegatation.\n */\nangular.module('ui.bootstrap.popover', ['ui.bootstrap.tooltip'])\n\n.directive('uibPopoverTemplatePopup', function() {\n  return {\n    restrict: 'A',\n    scope: { uibTitle: '@', contentExp: '&', originScope: '&' },\n    templateUrl: 'uib/template/popover/popover-template.html'\n  };\n})\n\n.directive('uibPopoverTemplate', ['$uibTooltip', function($uibTooltip) {\n  return $uibTooltip('uibPopoverTemplate', 'popover', 'click', {\n    useContentExp: true\n  });\n}])\n\n.directive('uibPopoverHtmlPopup', function() {\n  return {\n    restrict: 'A',\n    scope: { contentExp: '&', uibTitle: '@' },\n    templateUrl: 'uib/template/popover/popover-html.html'\n  };\n})\n\n.directive('uibPopoverHtml', ['$uibTooltip', function($uibTooltip) {\n  return $uibTooltip('uibPopoverHtml', 'popover', 'click', {\n    useContentExp: true\n  });\n}])\n\n.directive('uibPopoverPopup', function() {\n  return {\n    restrict: 'A',\n    scope: { uibTitle: '@', content: '@' },\n    templateUrl: 'uib/template/popover/popover.html'\n  };\n})\n\n.directive('uibPopover', ['$uibTooltip', function($uibTooltip) {\n  return $uibTooltip('uibPopover', 'popover', 'click');\n}]);\n\nangular.module('ui.bootstrap.progressbar', [])\n\n.constant('uibProgressConfig', {\n  animate: true,\n  max: 100\n})\n\n.controller('UibProgressController', ['$scope', '$attrs', 'uibProgressConfig', function($scope, $attrs, progressConfig) {\n  var self = this,\n      animate = angular.isDefined($attrs.animate) ? $scope.$parent.$eval($attrs.animate) : progressConfig.animate;\n\n  this.bars = [];\n  $scope.max = getMaxOrDefault();\n\n  this.addBar = function(bar, element, attrs) {\n    if (!animate) {\n      element.css({'transition': 'none'});\n    }\n\n    this.bars.push(bar);\n\n    bar.max = getMaxOrDefault();\n    bar.title = attrs && angular.isDefined(attrs.title) ? attrs.title : 'progressbar';\n\n    bar.$watch('value', function(value) {\n      bar.recalculatePercentage();\n    });\n\n    bar.recalculatePercentage = function() {\n      var totalPercentage = self.bars.reduce(function(total, bar) {\n        bar.percent = +(100 * bar.value / bar.max).toFixed(2);\n        return total + bar.percent;\n      }, 0);\n\n      if (totalPercentage > 100) {\n        bar.percent -= totalPercentage - 100;\n      }\n    };\n\n    bar.$on('$destroy', function() {\n      element = null;\n      self.removeBar(bar);\n    });\n  };\n\n  this.removeBar = function(bar) {\n    this.bars.splice(this.bars.indexOf(bar), 1);\n    this.bars.forEach(function (bar) {\n      bar.recalculatePercentage();\n    });\n  };\n\n  //$attrs.$observe('maxParam', function(maxParam) {\n  $scope.$watch('maxParam', function(maxParam) {\n    self.bars.forEach(function(bar) {\n      bar.max = getMaxOrDefault();\n      bar.recalculatePercentage();\n    });\n  });\n\n  function getMaxOrDefault () {\n    return angular.isDefined($scope.maxParam) ? $scope.maxParam : progressConfig.max;\n  }\n}])\n\n.directive('uibProgress', function() {\n  return {\n    replace: true,\n    transclude: true,\n    controller: 'UibProgressController',\n    require: 'uibProgress',\n    scope: {\n      maxParam: '=?max'\n    },\n    templateUrl: 'uib/template/progressbar/progress.html'\n  };\n})\n\n.directive('uibBar', function() {\n  return {\n    replace: true,\n    transclude: true,\n    require: '^uibProgress',\n    scope: {\n      value: '=',\n      type: '@'\n    },\n    templateUrl: 'uib/template/progressbar/bar.html',\n    link: function(scope, element, attrs, progressCtrl) {\n      progressCtrl.addBar(scope, element, attrs);\n    }\n  };\n})\n\n.directive('uibProgressbar', function() {\n  return {\n    replace: true,\n    transclude: true,\n    controller: 'UibProgressController',\n    scope: {\n      value: '=',\n      maxParam: '=?max',\n      type: '@'\n    },\n    templateUrl: 'uib/template/progressbar/progressbar.html',\n    link: function(scope, element, attrs, progressCtrl) {\n      progressCtrl.addBar(scope, angular.element(element.children()[0]), {title: attrs.title});\n    }\n  };\n});\n\nangular.module('ui.bootstrap.rating', [])\n\n.constant('uibRatingConfig', {\n  max: 5,\n  stateOn: null,\n  stateOff: null,\n  enableReset: true,\n  titles: ['one', 'two', 'three', 'four', 'five']\n})\n\n.controller('UibRatingController', ['$scope', '$attrs', 'uibRatingConfig', function($scope, $attrs, ratingConfig) {\n  var ngModelCtrl = { $setViewValue: angular.noop },\n    self = this;\n\n  this.init = function(ngModelCtrl_) {\n    ngModelCtrl = ngModelCtrl_;\n    ngModelCtrl.$render = this.render;\n\n    ngModelCtrl.$formatters.push(function(value) {\n      if (angular.isNumber(value) && value << 0 !== value) {\n        value = Math.round(value);\n      }\n\n      return value;\n    });\n\n    this.stateOn = angular.isDefined($attrs.stateOn) ? $scope.$parent.$eval($attrs.stateOn) : ratingConfig.stateOn;\n    this.stateOff = angular.isDefined($attrs.stateOff) ? $scope.$parent.$eval($attrs.stateOff) : ratingConfig.stateOff;\n    this.enableReset = angular.isDefined($attrs.enableReset) ?\n      $scope.$parent.$eval($attrs.enableReset) : ratingConfig.enableReset;\n    var tmpTitles = angular.isDefined($attrs.titles) ? $scope.$parent.$eval($attrs.titles) : ratingConfig.titles;\n    this.titles = angular.isArray(tmpTitles) && tmpTitles.length > 0 ?\n      tmpTitles : ratingConfig.titles;\n\n    var ratingStates = angular.isDefined($attrs.ratingStates) ?\n      $scope.$parent.$eval($attrs.ratingStates) :\n      new Array(angular.isDefined($attrs.max) ? $scope.$parent.$eval($attrs.max) : ratingConfig.max);\n    $scope.range = this.buildTemplateObjects(ratingStates);\n  };\n\n  this.buildTemplateObjects = function(states) {\n    for (var i = 0, n = states.length; i < n; i++) {\n      states[i] = angular.extend({ index: i }, { stateOn: this.stateOn, stateOff: this.stateOff, title: this.getTitle(i) }, states[i]);\n    }\n    return states;\n  };\n\n  this.getTitle = function(index) {\n    if (index >= this.titles.length) {\n      return index + 1;\n    }\n\n    return this.titles[index];\n  };\n\n  $scope.rate = function(value) {\n    if (!$scope.readonly && value >= 0 && value <= $scope.range.length) {\n      var newViewValue = self.enableReset && ngModelCtrl.$viewValue === value ? 0 : value;\n      ngModelCtrl.$setViewValue(newViewValue);\n      ngModelCtrl.$render();\n    }\n  };\n\n  $scope.enter = function(value) {\n    if (!$scope.readonly) {\n      $scope.value = value;\n    }\n    $scope.onHover({value: value});\n  };\n\n  $scope.reset = function() {\n    $scope.value = ngModelCtrl.$viewValue;\n    $scope.onLeave();\n  };\n\n  $scope.onKeydown = function(evt) {\n    if (/(37|38|39|40)/.test(evt.which)) {\n      evt.preventDefault();\n      evt.stopPropagation();\n      $scope.rate($scope.value + (evt.which === 38 || evt.which === 39 ? 1 : -1));\n    }\n  };\n\n  this.render = function() {\n    $scope.value = ngModelCtrl.$viewValue;\n    $scope.title = self.getTitle($scope.value - 1);\n  };\n}])\n\n.directive('uibRating', function() {\n  return {\n    require: ['uibRating', 'ngModel'],\n    restrict: 'A',\n    scope: {\n      readonly: '=?readOnly',\n      onHover: '&',\n      onLeave: '&'\n    },\n    controller: 'UibRatingController',\n    templateUrl: 'uib/template/rating/rating.html',\n    link: function(scope, element, attrs, ctrls) {\n      var ratingCtrl = ctrls[0], ngModelCtrl = ctrls[1];\n      ratingCtrl.init(ngModelCtrl);\n    }\n  };\n});\n\nangular.module('ui.bootstrap.tabs', [])\n\n.controller('UibTabsetController', ['$scope', function ($scope) {\n  var ctrl = this,\n    oldIndex;\n  ctrl.tabs = [];\n\n  ctrl.select = function(index, evt) {\n    if (!destroyed) {\n      var previousIndex = findTabIndex(oldIndex);\n      var previousSelected = ctrl.tabs[previousIndex];\n      if (previousSelected) {\n        previousSelected.tab.onDeselect({\n          $event: evt,\n          $selectedIndex: index\n        });\n        if (evt && evt.isDefaultPrevented()) {\n          return;\n        }\n        previousSelected.tab.active = false;\n      }\n\n      var selected = ctrl.tabs[index];\n      if (selected) {\n        selected.tab.onSelect({\n          $event: evt\n        });\n        selected.tab.active = true;\n        ctrl.active = selected.index;\n        oldIndex = selected.index;\n      } else if (!selected && angular.isDefined(oldIndex)) {\n        ctrl.active = null;\n        oldIndex = null;\n      }\n    }\n  };\n\n  ctrl.addTab = function addTab(tab) {\n    ctrl.tabs.push({\n      tab: tab,\n      index: tab.index\n    });\n    ctrl.tabs.sort(function(t1, t2) {\n      if (t1.index > t2.index) {\n        return 1;\n      }\n\n      if (t1.index < t2.index) {\n        return -1;\n      }\n\n      return 0;\n    });\n\n    if (tab.index === ctrl.active || !angular.isDefined(ctrl.active) && ctrl.tabs.length === 1) {\n      var newActiveIndex = findTabIndex(tab.index);\n      ctrl.select(newActiveIndex);\n    }\n  };\n\n  ctrl.removeTab = function removeTab(tab) {\n    var index;\n    for (var i = 0; i < ctrl.tabs.length; i++) {\n      if (ctrl.tabs[i].tab === tab) {\n        index = i;\n        break;\n      }\n    }\n\n    if (ctrl.tabs[index].index === ctrl.active) {\n      var newActiveTabIndex = index === ctrl.tabs.length - 1 ?\n        index - 1 : index + 1 % ctrl.tabs.length;\n      ctrl.select(newActiveTabIndex);\n    }\n\n    ctrl.tabs.splice(index, 1);\n  };\n\n  $scope.$watch('tabset.active', function(val) {\n    if (angular.isDefined(val) && val !== oldIndex) {\n      ctrl.select(findTabIndex(val));\n    }\n  });\n\n  var destroyed;\n  $scope.$on('$destroy', function() {\n    destroyed = true;\n  });\n\n  function findTabIndex(index) {\n    for (var i = 0; i < ctrl.tabs.length; i++) {\n      if (ctrl.tabs[i].index === index) {\n        return i;\n      }\n    }\n  }\n}])\n\n.directive('uibTabset', function() {\n  return {\n    transclude: true,\n    replace: true,\n    scope: {},\n    bindToController: {\n      active: '=?',\n      type: '@'\n    },\n    controller: 'UibTabsetController',\n    controllerAs: 'tabset',\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/tabs/tabset.html';\n    },\n    link: function(scope, element, attrs) {\n      scope.vertical = angular.isDefined(attrs.vertical) ?\n        scope.$parent.$eval(attrs.vertical) : false;\n      scope.justified = angular.isDefined(attrs.justified) ?\n        scope.$parent.$eval(attrs.justified) : false;\n    }\n  };\n})\n\n.directive('uibTab', ['$parse', function($parse) {\n  return {\n    require: '^uibTabset',\n    replace: true,\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || 'uib/template/tabs/tab.html';\n    },\n    transclude: true,\n    scope: {\n      heading: '@',\n      index: '=?',\n      classes: '@?',\n      onSelect: '&select', //This callback is called in contentHeadingTransclude\n                          //once it inserts the tab's content into the dom\n      onDeselect: '&deselect'\n    },\n    controller: function() {\n      //Empty controller so other directives can require being 'under' a tab\n    },\n    controllerAs: 'tab',\n    link: function(scope, elm, attrs, tabsetCtrl, transclude) {\n      scope.disabled = false;\n      if (attrs.disable) {\n        scope.$parent.$watch($parse(attrs.disable), function(value) {\n          scope.disabled = !! value;\n        });\n      }\n\n      if (angular.isUndefined(attrs.index)) {\n        if (tabsetCtrl.tabs && tabsetCtrl.tabs.length) {\n          scope.index = Math.max.apply(null, tabsetCtrl.tabs.map(function(t) { return t.index; })) + 1;\n        } else {\n          scope.index = 0;\n        }\n      }\n\n      if (angular.isUndefined(attrs.classes)) {\n        scope.classes = '';\n      }\n\n      scope.select = function(evt) {\n        if (!scope.disabled) {\n          var index;\n          for (var i = 0; i < tabsetCtrl.tabs.length; i++) {\n            if (tabsetCtrl.tabs[i].tab === scope) {\n              index = i;\n              break;\n            }\n          }\n\n          tabsetCtrl.select(index, evt);\n        }\n      };\n\n      tabsetCtrl.addTab(scope);\n      scope.$on('$destroy', function() {\n        tabsetCtrl.removeTab(scope);\n      });\n\n      //We need to transclude later, once the content container is ready.\n      //when this link happens, we're inside a tab heading.\n      scope.$transcludeFn = transclude;\n    }\n  };\n}])\n\n.directive('uibTabHeadingTransclude', function() {\n  return {\n    restrict: 'A',\n    require: '^uibTab',\n    link: function(scope, elm) {\n      scope.$watch('headingElement', function updateHeadingElement(heading) {\n        if (heading) {\n          elm.html('');\n          elm.append(heading);\n        }\n      });\n    }\n  };\n})\n\n.directive('uibTabContentTransclude', function() {\n  return {\n    restrict: 'A',\n    require: '^uibTabset',\n    link: function(scope, elm, attrs) {\n      var tab = scope.$eval(attrs.uibTabContentTransclude).tab;\n\n      //Now our tab is ready to be transcluded: both the tab heading area\n      //and the tab content area are loaded.  Transclude 'em both.\n      tab.$transcludeFn(tab.$parent, function(contents) {\n        angular.forEach(contents, function(node) {\n          if (isTabHeading(node)) {\n            //Let tabHeadingTransclude know.\n            tab.headingElement = node;\n          } else {\n            elm.append(node);\n          }\n        });\n      });\n    }\n  };\n\n  function isTabHeading(node) {\n    return node.tagName && (\n      node.hasAttribute('uib-tab-heading') ||\n      node.hasAttribute('data-uib-tab-heading') ||\n      node.hasAttribute('x-uib-tab-heading') ||\n      node.tagName.toLowerCase() === 'uib-tab-heading' ||\n      node.tagName.toLowerCase() === 'data-uib-tab-heading' ||\n      node.tagName.toLowerCase() === 'x-uib-tab-heading' ||\n      node.tagName.toLowerCase() === 'uib:tab-heading'\n    );\n  }\n});\n\nangular.module('ui.bootstrap.timepicker', [])\n\n.constant('uibTimepickerConfig', {\n  hourStep: 1,\n  minuteStep: 1,\n  secondStep: 1,\n  showMeridian: true,\n  showSeconds: false,\n  meridians: null,\n  readonlyInput: false,\n  mousewheel: true,\n  arrowkeys: true,\n  showSpinners: true,\n  templateUrl: 'uib/template/timepicker/timepicker.html'\n})\n\n.controller('UibTimepickerController', ['$scope', '$element', '$attrs', '$parse', '$log', '$locale', 'uibTimepickerConfig', function($scope, $element, $attrs, $parse, $log, $locale, timepickerConfig) {\n  var hoursModelCtrl, minutesModelCtrl, secondsModelCtrl;\n  var selected = new Date(),\n    watchers = [],\n    ngModelCtrl = { $setViewValue: angular.noop }, // nullModelCtrl\n    meridians = angular.isDefined($attrs.meridians) ? $scope.$parent.$eval($attrs.meridians) : timepickerConfig.meridians || $locale.DATETIME_FORMATS.AMPMS,\n    padHours = angular.isDefined($attrs.padHours) ? $scope.$parent.$eval($attrs.padHours) : true;\n\n  $scope.tabindex = angular.isDefined($attrs.tabindex) ? $attrs.tabindex : 0;\n  $element.removeAttr('tabindex');\n\n  this.init = function(ngModelCtrl_, inputs) {\n    ngModelCtrl = ngModelCtrl_;\n    ngModelCtrl.$render = this.render;\n\n    ngModelCtrl.$formatters.unshift(function(modelValue) {\n      return modelValue ? new Date(modelValue) : null;\n    });\n\n    var hoursInputEl = inputs.eq(0),\n        minutesInputEl = inputs.eq(1),\n        secondsInputEl = inputs.eq(2);\n\n    hoursModelCtrl = hoursInputEl.controller('ngModel');\n    minutesModelCtrl = minutesInputEl.controller('ngModel');\n    secondsModelCtrl = secondsInputEl.controller('ngModel');\n\n    var mousewheel = angular.isDefined($attrs.mousewheel) ? $scope.$parent.$eval($attrs.mousewheel) : timepickerConfig.mousewheel;\n\n    if (mousewheel) {\n      this.setupMousewheelEvents(hoursInputEl, minutesInputEl, secondsInputEl);\n    }\n\n    var arrowkeys = angular.isDefined($attrs.arrowkeys) ? $scope.$parent.$eval($attrs.arrowkeys) : timepickerConfig.arrowkeys;\n    if (arrowkeys) {\n      this.setupArrowkeyEvents(hoursInputEl, minutesInputEl, secondsInputEl);\n    }\n\n    $scope.readonlyInput = angular.isDefined($attrs.readonlyInput) ? $scope.$parent.$eval($attrs.readonlyInput) : timepickerConfig.readonlyInput;\n    this.setupInputEvents(hoursInputEl, minutesInputEl, secondsInputEl);\n  };\n\n  var hourStep = timepickerConfig.hourStep;\n  if ($attrs.hourStep) {\n    watchers.push($scope.$parent.$watch($parse($attrs.hourStep), function(value) {\n      hourStep = +value;\n    }));\n  }\n\n  var minuteStep = timepickerConfig.minuteStep;\n  if ($attrs.minuteStep) {\n    watchers.push($scope.$parent.$watch($parse($attrs.minuteStep), function(value) {\n      minuteStep = +value;\n    }));\n  }\n\n  var min;\n  watchers.push($scope.$parent.$watch($parse($attrs.min), function(value) {\n    var dt = new Date(value);\n    min = isNaN(dt) ? undefined : dt;\n  }));\n\n  var max;\n  watchers.push($scope.$parent.$watch($parse($attrs.max), function(value) {\n    var dt = new Date(value);\n    max = isNaN(dt) ? undefined : dt;\n  }));\n\n  var disabled = false;\n  if ($attrs.ngDisabled) {\n    watchers.push($scope.$parent.$watch($parse($attrs.ngDisabled), function(value) {\n      disabled = value;\n    }));\n  }\n\n  $scope.noIncrementHours = function() {\n    var incrementedSelected = addMinutes(selected, hourStep * 60);\n    return disabled || incrementedSelected > max ||\n      incrementedSelected < selected && incrementedSelected < min;\n  };\n\n  $scope.noDecrementHours = function() {\n    var decrementedSelected = addMinutes(selected, -hourStep * 60);\n    return disabled || decrementedSelected < min ||\n      decrementedSelected > selected && decrementedSelected > max;\n  };\n\n  $scope.noIncrementMinutes = function() {\n    var incrementedSelected = addMinutes(selected, minuteStep);\n    return disabled || incrementedSelected > max ||\n      incrementedSelected < selected && incrementedSelected < min;\n  };\n\n  $scope.noDecrementMinutes = function() {\n    var decrementedSelected = addMinutes(selected, -minuteStep);\n    return disabled || decrementedSelected < min ||\n      decrementedSelected > selected && decrementedSelected > max;\n  };\n\n  $scope.noIncrementSeconds = function() {\n    var incrementedSelected = addSeconds(selected, secondStep);\n    return disabled || incrementedSelected > max ||\n      incrementedSelected < selected && incrementedSelected < min;\n  };\n\n  $scope.noDecrementSeconds = function() {\n    var decrementedSelected = addSeconds(selected, -secondStep);\n    return disabled || decrementedSelected < min ||\n      decrementedSelected > selected && decrementedSelected > max;\n  };\n\n  $scope.noToggleMeridian = function() {\n    if (selected.getHours() < 12) {\n      return disabled || addMinutes(selected, 12 * 60) > max;\n    }\n\n    return disabled || addMinutes(selected, -12 * 60) < min;\n  };\n\n  var secondStep = timepickerConfig.secondStep;\n  if ($attrs.secondStep) {\n    watchers.push($scope.$parent.$watch($parse($attrs.secondStep), function(value) {\n      secondStep = +value;\n    }));\n  }\n\n  $scope.showSeconds = timepickerConfig.showSeconds;\n  if ($attrs.showSeconds) {\n    watchers.push($scope.$parent.$watch($parse($attrs.showSeconds), function(value) {\n      $scope.showSeconds = !!value;\n    }));\n  }\n\n  // 12H / 24H mode\n  $scope.showMeridian = timepickerConfig.showMeridian;\n  if ($attrs.showMeridian) {\n    watchers.push($scope.$parent.$watch($parse($attrs.showMeridian), function(value) {\n      $scope.showMeridian = !!value;\n\n      if (ngModelCtrl.$error.time) {\n        // Evaluate from template\n        var hours = getHoursFromTemplate(), minutes = getMinutesFromTemplate();\n        if (angular.isDefined(hours) && angular.isDefined(minutes)) {\n          selected.setHours(hours);\n          refresh();\n        }\n      } else {\n        updateTemplate();\n      }\n    }));\n  }\n\n  // Get $scope.hours in 24H mode if valid\n  function getHoursFromTemplate() {\n    var hours = +$scope.hours;\n    var valid = $scope.showMeridian ? hours > 0 && hours < 13 :\n      hours >= 0 && hours < 24;\n    if (!valid || $scope.hours === '') {\n      return undefined;\n    }\n\n    if ($scope.showMeridian) {\n      if (hours === 12) {\n        hours = 0;\n      }\n      if ($scope.meridian === meridians[1]) {\n        hours = hours + 12;\n      }\n    }\n    return hours;\n  }\n\n  function getMinutesFromTemplate() {\n    var minutes = +$scope.minutes;\n    var valid = minutes >= 0 && minutes < 60;\n    if (!valid || $scope.minutes === '') {\n      return undefined;\n    }\n    return minutes;\n  }\n\n  function getSecondsFromTemplate() {\n    var seconds = +$scope.seconds;\n    return seconds >= 0 && seconds < 60 ? seconds : undefined;\n  }\n\n  function pad(value, noPad) {\n    if (value === null) {\n      return '';\n    }\n\n    return angular.isDefined(value) && value.toString().length < 2 && !noPad ?\n      '0' + value : value.toString();\n  }\n\n  // Respond on mousewheel spin\n  this.setupMousewheelEvents = function(hoursInputEl, minutesInputEl, secondsInputEl) {\n    var isScrollingUp = function(e) {\n      if (e.originalEvent) {\n        e = e.originalEvent;\n      }\n      //pick correct delta variable depending on event\n      var delta = e.wheelDelta ? e.wheelDelta : -e.deltaY;\n      return e.detail || delta > 0;\n    };\n\n    hoursInputEl.on('mousewheel wheel', function(e) {\n      if (!disabled) {\n        $scope.$apply(isScrollingUp(e) ? $scope.incrementHours() : $scope.decrementHours());\n      }\n      e.preventDefault();\n    });\n\n    minutesInputEl.on('mousewheel wheel', function(e) {\n      if (!disabled) {\n        $scope.$apply(isScrollingUp(e) ? $scope.incrementMinutes() : $scope.decrementMinutes());\n      }\n      e.preventDefault();\n    });\n\n     secondsInputEl.on('mousewheel wheel', function(e) {\n      if (!disabled) {\n        $scope.$apply(isScrollingUp(e) ? $scope.incrementSeconds() : $scope.decrementSeconds());\n      }\n      e.preventDefault();\n    });\n  };\n\n  // Respond on up/down arrowkeys\n  this.setupArrowkeyEvents = function(hoursInputEl, minutesInputEl, secondsInputEl) {\n    hoursInputEl.on('keydown', function(e) {\n      if (!disabled) {\n        if (e.which === 38) { // up\n          e.preventDefault();\n          $scope.incrementHours();\n          $scope.$apply();\n        } else if (e.which === 40) { // down\n          e.preventDefault();\n          $scope.decrementHours();\n          $scope.$apply();\n        }\n      }\n    });\n\n    minutesInputEl.on('keydown', function(e) {\n      if (!disabled) {\n        if (e.which === 38) { // up\n          e.preventDefault();\n          $scope.incrementMinutes();\n          $scope.$apply();\n        } else if (e.which === 40) { // down\n          e.preventDefault();\n          $scope.decrementMinutes();\n          $scope.$apply();\n        }\n      }\n    });\n\n    secondsInputEl.on('keydown', function(e) {\n      if (!disabled) {\n        if (e.which === 38) { // up\n          e.preventDefault();\n          $scope.incrementSeconds();\n          $scope.$apply();\n        } else if (e.which === 40) { // down\n          e.preventDefault();\n          $scope.decrementSeconds();\n          $scope.$apply();\n        }\n      }\n    });\n  };\n\n  this.setupInputEvents = function(hoursInputEl, minutesInputEl, secondsInputEl) {\n    if ($scope.readonlyInput) {\n      $scope.updateHours = angular.noop;\n      $scope.updateMinutes = angular.noop;\n      $scope.updateSeconds = angular.noop;\n      return;\n    }\n\n    var invalidate = function(invalidHours, invalidMinutes, invalidSeconds) {\n      ngModelCtrl.$setViewValue(null);\n      ngModelCtrl.$setValidity('time', false);\n      if (angular.isDefined(invalidHours)) {\n        $scope.invalidHours = invalidHours;\n        if (hoursModelCtrl) {\n          hoursModelCtrl.$setValidity('hours', false);\n        }\n      }\n\n      if (angular.isDefined(invalidMinutes)) {\n        $scope.invalidMinutes = invalidMinutes;\n        if (minutesModelCtrl) {\n          minutesModelCtrl.$setValidity('minutes', false);\n        }\n      }\n\n      if (angular.isDefined(invalidSeconds)) {\n        $scope.invalidSeconds = invalidSeconds;\n        if (secondsModelCtrl) {\n          secondsModelCtrl.$setValidity('seconds', false);\n        }\n      }\n    };\n\n    $scope.updateHours = function() {\n      var hours = getHoursFromTemplate(),\n        minutes = getMinutesFromTemplate();\n\n      ngModelCtrl.$setDirty();\n\n      if (angular.isDefined(hours) && angular.isDefined(minutes)) {\n        selected.setHours(hours);\n        selected.setMinutes(minutes);\n        if (selected < min || selected > max) {\n          invalidate(true);\n        } else {\n          refresh('h');\n        }\n      } else {\n        invalidate(true);\n      }\n    };\n\n    hoursInputEl.on('blur', function(e) {\n      ngModelCtrl.$setTouched();\n      if (modelIsEmpty()) {\n        makeValid();\n      } else if ($scope.hours === null || $scope.hours === '') {\n        invalidate(true);\n      } else if (!$scope.invalidHours && $scope.hours < 10) {\n        $scope.$apply(function() {\n          $scope.hours = pad($scope.hours, !padHours);\n        });\n      }\n    });\n\n    $scope.updateMinutes = function() {\n      var minutes = getMinutesFromTemplate(),\n        hours = getHoursFromTemplate();\n\n      ngModelCtrl.$setDirty();\n\n      if (angular.isDefined(minutes) && angular.isDefined(hours)) {\n        selected.setHours(hours);\n        selected.setMinutes(minutes);\n        if (selected < min || selected > max) {\n          invalidate(undefined, true);\n        } else {\n          refresh('m');\n        }\n      } else {\n        invalidate(undefined, true);\n      }\n    };\n\n    minutesInputEl.on('blur', function(e) {\n      ngModelCtrl.$setTouched();\n      if (modelIsEmpty()) {\n        makeValid();\n      } else if ($scope.minutes === null) {\n        invalidate(undefined, true);\n      } else if (!$scope.invalidMinutes && $scope.minutes < 10) {\n        $scope.$apply(function() {\n          $scope.minutes = pad($scope.minutes);\n        });\n      }\n    });\n\n    $scope.updateSeconds = function() {\n      var seconds = getSecondsFromTemplate();\n\n      ngModelCtrl.$setDirty();\n\n      if (angular.isDefined(seconds)) {\n        selected.setSeconds(seconds);\n        refresh('s');\n      } else {\n        invalidate(undefined, undefined, true);\n      }\n    };\n\n    secondsInputEl.on('blur', function(e) {\n      if (modelIsEmpty()) {\n        makeValid();\n      } else if (!$scope.invalidSeconds && $scope.seconds < 10) {\n        $scope.$apply( function() {\n          $scope.seconds = pad($scope.seconds);\n        });\n      }\n    });\n\n  };\n\n  this.render = function() {\n    var date = ngModelCtrl.$viewValue;\n\n    if (isNaN(date)) {\n      ngModelCtrl.$setValidity('time', false);\n      $log.error('Timepicker directive: \"ng-model\" value must be a Date object, a number of milliseconds since 01.01.1970 or a string representing an RFC2822 or ISO 8601 date.');\n    } else {\n      if (date) {\n        selected = date;\n      }\n\n      if (selected < min || selected > max) {\n        ngModelCtrl.$setValidity('time', false);\n        $scope.invalidHours = true;\n        $scope.invalidMinutes = true;\n      } else {\n        makeValid();\n      }\n      updateTemplate();\n    }\n  };\n\n  // Call internally when we know that model is valid.\n  function refresh(keyboardChange) {\n    makeValid();\n    ngModelCtrl.$setViewValue(new Date(selected));\n    updateTemplate(keyboardChange);\n  }\n\n  function makeValid() {\n    if (hoursModelCtrl) {\n      hoursModelCtrl.$setValidity('hours', true);\n    }\n\n    if (minutesModelCtrl) {\n      minutesModelCtrl.$setValidity('minutes', true);\n    }\n\n    if (secondsModelCtrl) {\n      secondsModelCtrl.$setValidity('seconds', true);\n    }\n\n    ngModelCtrl.$setValidity('time', true);\n    $scope.invalidHours = false;\n    $scope.invalidMinutes = false;\n    $scope.invalidSeconds = false;\n  }\n\n  function updateTemplate(keyboardChange) {\n    if (!ngModelCtrl.$modelValue) {\n      $scope.hours = null;\n      $scope.minutes = null;\n      $scope.seconds = null;\n      $scope.meridian = meridians[0];\n    } else {\n      var hours = selected.getHours(),\n        minutes = selected.getMinutes(),\n        seconds = selected.getSeconds();\n\n      if ($scope.showMeridian) {\n        hours = hours === 0 || hours === 12 ? 12 : hours % 12; // Convert 24 to 12 hour system\n      }\n\n      $scope.hours = keyboardChange === 'h' ? hours : pad(hours, !padHours);\n      if (keyboardChange !== 'm') {\n        $scope.minutes = pad(minutes);\n      }\n      $scope.meridian = selected.getHours() < 12 ? meridians[0] : meridians[1];\n\n      if (keyboardChange !== 's') {\n        $scope.seconds = pad(seconds);\n      }\n      $scope.meridian = selected.getHours() < 12 ? meridians[0] : meridians[1];\n    }\n  }\n\n  function addSecondsToSelected(seconds) {\n    selected = addSeconds(selected, seconds);\n    refresh();\n  }\n\n  function addMinutes(selected, minutes) {\n    return addSeconds(selected, minutes*60);\n  }\n\n  function addSeconds(date, seconds) {\n    var dt = new Date(date.getTime() + seconds * 1000);\n    var newDate = new Date(date);\n    newDate.setHours(dt.getHours(), dt.getMinutes(), dt.getSeconds());\n    return newDate;\n  }\n\n  function modelIsEmpty() {\n    return ($scope.hours === null || $scope.hours === '') &&\n      ($scope.minutes === null || $scope.minutes === '') &&\n      (!$scope.showSeconds || $scope.showSeconds && ($scope.seconds === null || $scope.seconds === ''));\n  }\n\n  $scope.showSpinners = angular.isDefined($attrs.showSpinners) ?\n    $scope.$parent.$eval($attrs.showSpinners) : timepickerConfig.showSpinners;\n\n  $scope.incrementHours = function() {\n    if (!$scope.noIncrementHours()) {\n      addSecondsToSelected(hourStep * 60 * 60);\n    }\n  };\n\n  $scope.decrementHours = function() {\n    if (!$scope.noDecrementHours()) {\n      addSecondsToSelected(-hourStep * 60 * 60);\n    }\n  };\n\n  $scope.incrementMinutes = function() {\n    if (!$scope.noIncrementMinutes()) {\n      addSecondsToSelected(minuteStep * 60);\n    }\n  };\n\n  $scope.decrementMinutes = function() {\n    if (!$scope.noDecrementMinutes()) {\n      addSecondsToSelected(-minuteStep * 60);\n    }\n  };\n\n  $scope.incrementSeconds = function() {\n    if (!$scope.noIncrementSeconds()) {\n      addSecondsToSelected(secondStep);\n    }\n  };\n\n  $scope.decrementSeconds = function() {\n    if (!$scope.noDecrementSeconds()) {\n      addSecondsToSelected(-secondStep);\n    }\n  };\n\n  $scope.toggleMeridian = function() {\n    var minutes = getMinutesFromTemplate(),\n        hours = getHoursFromTemplate();\n\n    if (!$scope.noToggleMeridian()) {\n      if (angular.isDefined(minutes) && angular.isDefined(hours)) {\n        addSecondsToSelected(12 * 60 * (selected.getHours() < 12 ? 60 : -60));\n      } else {\n        $scope.meridian = $scope.meridian === meridians[0] ? meridians[1] : meridians[0];\n      }\n    }\n  };\n\n  $scope.blur = function() {\n    ngModelCtrl.$setTouched();\n  };\n\n  $scope.$on('$destroy', function() {\n    while (watchers.length) {\n      watchers.shift()();\n    }\n  });\n}])\n\n.directive('uibTimepicker', ['uibTimepickerConfig', function(uibTimepickerConfig) {\n  return {\n    require: ['uibTimepicker', '?^ngModel'],\n    restrict: 'A',\n    controller: 'UibTimepickerController',\n    controllerAs: 'timepicker',\n    scope: {},\n    templateUrl: function(element, attrs) {\n      return attrs.templateUrl || uibTimepickerConfig.templateUrl;\n    },\n    link: function(scope, element, attrs, ctrls) {\n      var timepickerCtrl = ctrls[0], ngModelCtrl = ctrls[1];\n\n      if (ngModelCtrl) {\n        timepickerCtrl.init(ngModelCtrl, element.find('input'));\n      }\n    }\n  };\n}]);\n\nangular.module('ui.bootstrap.typeahead', ['ui.bootstrap.debounce', 'ui.bootstrap.position'])\n\n/**\n * A helper service that can parse typeahead's syntax (string provided by users)\n * Extracted to a separate service for ease of unit testing\n */\n  .factory('uibTypeaheadParser', ['$parse', function($parse) {\n    //                      000001111111100000000000002222222200000000000000003333333333333330000000000044444444000\n    var TYPEAHEAD_REGEXP = /^\\s*([\\s\\S]+?)(?:\\s+as\\s+([\\s\\S]+?))?\\s+for\\s+(?:([\\$\\w][\\$\\w\\d]*))\\s+in\\s+([\\s\\S]+?)$/;\n    return {\n      parse: function(input) {\n        var match = input.match(TYPEAHEAD_REGEXP);\n        if (!match) {\n          throw new Error(\n            'Expected typeahead specification in form of \"_modelValue_ (as _label_)? for _item_ in _collection_\"' +\n              ' but got \"' + input + '\".');\n        }\n\n        return {\n          itemName: match[3],\n          source: $parse(match[4]),\n          viewMapper: $parse(match[2] || match[1]),\n          modelMapper: $parse(match[1])\n        };\n      }\n    };\n  }])\n\n  .controller('UibTypeaheadController', ['$scope', '$element', '$attrs', '$compile', '$parse', '$q', '$timeout', '$document', '$window', '$rootScope', '$$debounce', '$uibPosition', 'uibTypeaheadParser',\n    function(originalScope, element, attrs, $compile, $parse, $q, $timeout, $document, $window, $rootScope, $$debounce, $position, typeaheadParser) {\n    var HOT_KEYS = [9, 13, 27, 38, 40];\n    var eventDebounceTime = 200;\n    var modelCtrl, ngModelOptions;\n    //SUPPORTED ATTRIBUTES (OPTIONS)\n\n    //minimal no of characters that needs to be entered before typeahead kicks-in\n    var minLength = originalScope.$eval(attrs.typeaheadMinLength);\n    if (!minLength && minLength !== 0) {\n      minLength = 1;\n    }\n\n    originalScope.$watch(attrs.typeaheadMinLength, function (newVal) {\n        minLength = !newVal && newVal !== 0 ? 1 : newVal;\n    });\n\n    //minimal wait time after last character typed before typeahead kicks-in\n    var waitTime = originalScope.$eval(attrs.typeaheadWaitMs) || 0;\n\n    //should it restrict model values to the ones selected from the popup only?\n    var isEditable = originalScope.$eval(attrs.typeaheadEditable) !== false;\n    originalScope.$watch(attrs.typeaheadEditable, function (newVal) {\n      isEditable = newVal !== false;\n    });\n\n    //binding to a variable that indicates if matches are being retrieved asynchronously\n    var isLoadingSetter = $parse(attrs.typeaheadLoading).assign || angular.noop;\n\n    //a function to determine if an event should cause selection\n    var isSelectEvent = attrs.typeaheadShouldSelect ? $parse(attrs.typeaheadShouldSelect) : function(scope, vals) {\n      var evt = vals.$event;\n      return evt.which === 13 || evt.which === 9;\n    };\n\n    //a callback executed when a match is selected\n    var onSelectCallback = $parse(attrs.typeaheadOnSelect);\n\n    //should it select highlighted popup value when losing focus?\n    var isSelectOnBlur = angular.isDefined(attrs.typeaheadSelectOnBlur) ? originalScope.$eval(attrs.typeaheadSelectOnBlur) : false;\n\n    //binding to a variable that indicates if there were no results after the query is completed\n    var isNoResultsSetter = $parse(attrs.typeaheadNoResults).assign || angular.noop;\n\n    var inputFormatter = attrs.typeaheadInputFormatter ? $parse(attrs.typeaheadInputFormatter) : undefined;\n\n    var appendToBody = attrs.typeaheadAppendToBody ? originalScope.$eval(attrs.typeaheadAppendToBody) : false;\n\n    var appendTo = attrs.typeaheadAppendTo ?\n      originalScope.$eval(attrs.typeaheadAppendTo) : null;\n\n    var focusFirst = originalScope.$eval(attrs.typeaheadFocusFirst) !== false;\n\n    //If input matches an item of the list exactly, select it automatically\n    var selectOnExact = attrs.typeaheadSelectOnExact ? originalScope.$eval(attrs.typeaheadSelectOnExact) : false;\n\n    //binding to a variable that indicates if dropdown is open\n    var isOpenSetter = $parse(attrs.typeaheadIsOpen).assign || angular.noop;\n\n    var showHint = originalScope.$eval(attrs.typeaheadShowHint) || false;\n\n    //INTERNAL VARIABLES\n\n    //model setter executed upon match selection\n    var parsedModel = $parse(attrs.ngModel);\n    var invokeModelSetter = $parse(attrs.ngModel + '($$$p)');\n    var $setModelValue = function(scope, newValue) {\n      if (angular.isFunction(parsedModel(originalScope)) &&\n        ngModelOptions.getOption('getterSetter')) {\n        return invokeModelSetter(scope, {$$$p: newValue});\n      }\n\n      return parsedModel.assign(scope, newValue);\n    };\n\n    //expressions used by typeahead\n    var parserResult = typeaheadParser.parse(attrs.uibTypeahead);\n\n    var hasFocus;\n\n    //Used to avoid bug in iOS webview where iOS keyboard does not fire\n    //mousedown & mouseup events\n    //Issue #3699\n    var selected;\n\n    //create a child scope for the typeahead directive so we are not polluting original scope\n    //with typeahead-specific data (matches, query etc.)\n    var scope = originalScope.$new();\n    var offDestroy = originalScope.$on('$destroy', function() {\n      scope.$destroy();\n    });\n    scope.$on('$destroy', offDestroy);\n\n    // WAI-ARIA\n    var popupId = 'typeahead-' + scope.$id + '-' + Math.floor(Math.random() * 10000);\n    element.attr({\n      'aria-autocomplete': 'list',\n      'aria-expanded': false,\n      'aria-owns': popupId\n    });\n\n    var inputsContainer, hintInputElem;\n    //add read-only input to show hint\n    if (showHint) {\n      inputsContainer = angular.element('<div></div>');\n      inputsContainer.css('position', 'relative');\n      element.after(inputsContainer);\n      hintInputElem = element.clone();\n      hintInputElem.attr('placeholder', '');\n      hintInputElem.attr('tabindex', '-1');\n      hintInputElem.val('');\n      hintInputElem.css({\n        'position': 'absolute',\n        'top': '0px',\n        'left': '0px',\n        'border-color': 'transparent',\n        'box-shadow': 'none',\n        'opacity': 1,\n        'background': 'none 0% 0% / auto repeat scroll padding-box border-box rgb(255, 255, 255)',\n        'color': '#999'\n      });\n      element.css({\n        'position': 'relative',\n        'vertical-align': 'top',\n        'background-color': 'transparent'\n      });\n\n      if (hintInputElem.attr('id')) {\n        hintInputElem.removeAttr('id'); // remove duplicate id if present.\n      }\n      inputsContainer.append(hintInputElem);\n      hintInputElem.after(element);\n    }\n\n    //pop-up element used to display matches\n    var popUpEl = angular.element('<div uib-typeahead-popup></div>');\n    popUpEl.attr({\n      id: popupId,\n      matches: 'matches',\n      active: 'activeIdx',\n      select: 'select(activeIdx, evt)',\n      'move-in-progress': 'moveInProgress',\n      query: 'query',\n      position: 'position',\n      'assign-is-open': 'assignIsOpen(isOpen)',\n      debounce: 'debounceUpdate'\n    });\n    //custom item template\n    if (angular.isDefined(attrs.typeaheadTemplateUrl)) {\n      popUpEl.attr('template-url', attrs.typeaheadTemplateUrl);\n    }\n\n    if (angular.isDefined(attrs.typeaheadPopupTemplateUrl)) {\n      popUpEl.attr('popup-template-url', attrs.typeaheadPopupTemplateUrl);\n    }\n\n    var resetHint = function() {\n      if (showHint) {\n        hintInputElem.val('');\n      }\n    };\n\n    var resetMatches = function() {\n      scope.matches = [];\n      scope.activeIdx = -1;\n      element.attr('aria-expanded', false);\n      resetHint();\n    };\n\n    var getMatchId = function(index) {\n      return popupId + '-option-' + index;\n    };\n\n    // Indicate that the specified match is the active (pre-selected) item in the list owned by this typeahead.\n    // This attribute is added or removed automatically when the `activeIdx` changes.\n    scope.$watch('activeIdx', function(index) {\n      if (index < 0) {\n        element.removeAttr('aria-activedescendant');\n      } else {\n        element.attr('aria-activedescendant', getMatchId(index));\n      }\n    });\n\n    var inputIsExactMatch = function(inputValue, index) {\n      if (scope.matches.length > index && inputValue) {\n        return inputValue.toUpperCase() === scope.matches[index].label.toUpperCase();\n      }\n\n      return false;\n    };\n\n    var getMatchesAsync = function(inputValue, evt) {\n      var locals = {$viewValue: inputValue};\n      isLoadingSetter(originalScope, true);\n      isNoResultsSetter(originalScope, false);\n      $q.when(parserResult.source(originalScope, locals)).then(function(matches) {\n        //it might happen that several async queries were in progress if a user were typing fast\n        //but we are interested only in responses that correspond to the current view value\n        var onCurrentRequest = inputValue === modelCtrl.$viewValue;\n        if (onCurrentRequest && hasFocus) {\n          if (matches && matches.length > 0) {\n            scope.activeIdx = focusFirst ? 0 : -1;\n            isNoResultsSetter(originalScope, false);\n            scope.matches.length = 0;\n\n            //transform labels\n            for (var i = 0; i < matches.length; i++) {\n              locals[parserResult.itemName] = matches[i];\n              scope.matches.push({\n                id: getMatchId(i),\n                label: parserResult.viewMapper(scope, locals),\n                model: matches[i]\n              });\n            }\n\n            scope.query = inputValue;\n            //position pop-up with matches - we need to re-calculate its position each time we are opening a window\n            //with matches as a pop-up might be absolute-positioned and position of an input might have changed on a page\n            //due to other elements being rendered\n            recalculatePosition();\n\n            element.attr('aria-expanded', true);\n\n            //Select the single remaining option if user input matches\n            if (selectOnExact && scope.matches.length === 1 && inputIsExactMatch(inputValue, 0)) {\n              if (angular.isNumber(scope.debounceUpdate) || angular.isObject(scope.debounceUpdate)) {\n                $$debounce(function() {\n                  scope.select(0, evt);\n                }, angular.isNumber(scope.debounceUpdate) ? scope.debounceUpdate : scope.debounceUpdate['default']);\n              } else {\n                scope.select(0, evt);\n              }\n            }\n\n            if (showHint) {\n              var firstLabel = scope.matches[0].label;\n              if (angular.isString(inputValue) &&\n                inputValue.length > 0 &&\n                firstLabel.slice(0, inputValue.length).toUpperCase() === inputValue.toUpperCase()) {\n                hintInputElem.val(inputValue + firstLabel.slice(inputValue.length));\n              } else {\n                hintInputElem.val('');\n              }\n            }\n          } else {\n            resetMatches();\n            isNoResultsSetter(originalScope, true);\n          }\n        }\n        if (onCurrentRequest) {\n          isLoadingSetter(originalScope, false);\n        }\n      }, function() {\n        resetMatches();\n        isLoadingSetter(originalScope, false);\n        isNoResultsSetter(originalScope, true);\n      });\n    };\n\n    // bind events only if appendToBody params exist - performance feature\n    if (appendToBody) {\n      angular.element($window).on('resize', fireRecalculating);\n      $document.find('body').on('scroll', fireRecalculating);\n    }\n\n    // Declare the debounced function outside recalculating for\n    // proper debouncing\n    var debouncedRecalculate = $$debounce(function() {\n      // if popup is visible\n      if (scope.matches.length) {\n        recalculatePosition();\n      }\n\n      scope.moveInProgress = false;\n    }, eventDebounceTime);\n\n    // Default progress type\n    scope.moveInProgress = false;\n\n    function fireRecalculating() {\n      if (!scope.moveInProgress) {\n        scope.moveInProgress = true;\n        scope.$digest();\n      }\n\n      debouncedRecalculate();\n    }\n\n    // recalculate actual position and set new values to scope\n    // after digest loop is popup in right position\n    function recalculatePosition() {\n      scope.position = appendToBody ? $position.offset(element) : $position.position(element);\n      scope.position.top += element.prop('offsetHeight');\n    }\n\n    //we need to propagate user's query so we can higlight matches\n    scope.query = undefined;\n\n    //Declare the timeout promise var outside the function scope so that stacked calls can be cancelled later\n    var timeoutPromise;\n\n    var scheduleSearchWithTimeout = function(inputValue) {\n      timeoutPromise = $timeout(function() {\n        getMatchesAsync(inputValue);\n      }, waitTime);\n    };\n\n    var cancelPreviousTimeout = function() {\n      if (timeoutPromise) {\n        $timeout.cancel(timeoutPromise);\n      }\n    };\n\n    resetMatches();\n\n    scope.assignIsOpen = function (isOpen) {\n      isOpenSetter(originalScope, isOpen);\n    };\n\n    scope.select = function(activeIdx, evt) {\n      //called from within the $digest() cycle\n      var locals = {};\n      var model, item;\n\n      selected = true;\n      locals[parserResult.itemName] = item = scope.matches[activeIdx].model;\n      model = parserResult.modelMapper(originalScope, locals);\n      $setModelValue(originalScope, model);\n      modelCtrl.$setValidity('editable', true);\n      modelCtrl.$setValidity('parse', true);\n\n      onSelectCallback(originalScope, {\n        $item: item,\n        $model: model,\n        $label: parserResult.viewMapper(originalScope, locals),\n        $event: evt\n      });\n\n      resetMatches();\n\n      //return focus to the input element if a match was selected via a mouse click event\n      // use timeout to avoid $rootScope:inprog error\n      if (scope.$eval(attrs.typeaheadFocusOnSelect) !== false) {\n        $timeout(function() { element[0].focus(); }, 0, false);\n      }\n    };\n\n    //bind keyboard events: arrows up(38) / down(40), enter(13) and tab(9), esc(27)\n    element.on('keydown', function(evt) {\n      //typeahead is open and an \"interesting\" key was pressed\n      if (scope.matches.length === 0 || HOT_KEYS.indexOf(evt.which) === -1) {\n        return;\n      }\n\n      var shouldSelect = isSelectEvent(originalScope, {$event: evt});\n\n      /**\n       * if there's nothing selected (i.e. focusFirst) and enter or tab is hit\n       * or\n       * shift + tab is pressed to bring focus to the previous element\n       * then clear the results\n       */\n      if (scope.activeIdx === -1 && shouldSelect || evt.which === 9 && !!evt.shiftKey) {\n        resetMatches();\n        scope.$digest();\n        return;\n      }\n\n      evt.preventDefault();\n      var target;\n      switch (evt.which) {\n        case 27: // escape\n          evt.stopPropagation();\n\n          resetMatches();\n          originalScope.$digest();\n          break;\n        case 38: // up arrow\n          scope.activeIdx = (scope.activeIdx > 0 ? scope.activeIdx : scope.matches.length) - 1;\n          scope.$digest();\n          target = popUpEl[0].querySelectorAll('.uib-typeahead-match')[scope.activeIdx];\n          target.parentNode.scrollTop = target.offsetTop;\n          break;\n        case 40: // down arrow\n          scope.activeIdx = (scope.activeIdx + 1) % scope.matches.length;\n          scope.$digest();\n          target = popUpEl[0].querySelectorAll('.uib-typeahead-match')[scope.activeIdx];\n          target.parentNode.scrollTop = target.offsetTop;\n          break;\n        default:\n          if (shouldSelect) {\n            scope.$apply(function() {\n              if (angular.isNumber(scope.debounceUpdate) || angular.isObject(scope.debounceUpdate)) {\n                $$debounce(function() {\n                  scope.select(scope.activeIdx, evt);\n                }, angular.isNumber(scope.debounceUpdate) ? scope.debounceUpdate : scope.debounceUpdate['default']);\n              } else {\n                scope.select(scope.activeIdx, evt);\n              }\n            });\n          }\n      }\n    });\n\n    element.on('focus', function (evt) {\n      hasFocus = true;\n      if (minLength === 0 && !modelCtrl.$viewValue) {\n        $timeout(function() {\n          getMatchesAsync(modelCtrl.$viewValue, evt);\n        }, 0);\n      }\n    });\n\n    element.on('blur', function(evt) {\n      if (isSelectOnBlur && scope.matches.length && scope.activeIdx !== -1 && !selected) {\n        selected = true;\n        scope.$apply(function() {\n          if (angular.isObject(scope.debounceUpdate) && angular.isNumber(scope.debounceUpdate.blur)) {\n            $$debounce(function() {\n              scope.select(scope.activeIdx, evt);\n            }, scope.debounceUpdate.blur);\n          } else {\n            scope.select(scope.activeIdx, evt);\n          }\n        });\n      }\n      if (!isEditable && modelCtrl.$error.editable) {\n        modelCtrl.$setViewValue();\n        scope.$apply(function() {\n          // Reset validity as we are clearing\n          modelCtrl.$setValidity('editable', true);\n          modelCtrl.$setValidity('parse', true);\n        });\n        element.val('');\n      }\n      hasFocus = false;\n      selected = false;\n    });\n\n    // Keep reference to click handler to unbind it.\n    var dismissClickHandler = function(evt) {\n      // Issue #3973\n      // Firefox treats right click as a click on document\n      if (element[0] !== evt.target && evt.which !== 3 && scope.matches.length !== 0) {\n        resetMatches();\n        if (!$rootScope.$$phase) {\n          originalScope.$digest();\n        }\n      }\n    };\n\n    $document.on('click', dismissClickHandler);\n\n    originalScope.$on('$destroy', function() {\n      $document.off('click', dismissClickHandler);\n      if (appendToBody || appendTo) {\n        $popup.remove();\n      }\n\n      if (appendToBody) {\n        angular.element($window).off('resize', fireRecalculating);\n        $document.find('body').off('scroll', fireRecalculating);\n      }\n      // Prevent jQuery cache memory leak\n      popUpEl.remove();\n\n      if (showHint) {\n          inputsContainer.remove();\n      }\n    });\n\n    var $popup = $compile(popUpEl)(scope);\n\n    if (appendToBody) {\n      $document.find('body').append($popup);\n    } else if (appendTo) {\n      angular.element(appendTo).eq(0).append($popup);\n    } else {\n      element.after($popup);\n    }\n\n    this.init = function(_modelCtrl) {\n      modelCtrl = _modelCtrl;\n      ngModelOptions = extractOptions(modelCtrl);\n\n      scope.debounceUpdate = $parse(ngModelOptions.getOption('debounce'))(originalScope);\n\n      //plug into $parsers pipeline to open a typeahead on view changes initiated from DOM\n      //$parsers kick-in on all the changes coming from the view as well as manually triggered by $setViewValue\n      modelCtrl.$parsers.unshift(function(inputValue) {\n        hasFocus = true;\n\n        if (minLength === 0 || inputValue && inputValue.length >= minLength) {\n          if (waitTime > 0) {\n            cancelPreviousTimeout();\n            scheduleSearchWithTimeout(inputValue);\n          } else {\n            getMatchesAsync(inputValue);\n          }\n        } else {\n          isLoadingSetter(originalScope, false);\n          cancelPreviousTimeout();\n          resetMatches();\n        }\n\n        if (isEditable) {\n          return inputValue;\n        }\n\n        if (!inputValue) {\n          // Reset in case user had typed something previously.\n          modelCtrl.$setValidity('editable', true);\n          return null;\n        }\n\n        modelCtrl.$setValidity('editable', false);\n        return undefined;\n      });\n\n      modelCtrl.$formatters.push(function(modelValue) {\n        var candidateViewValue, emptyViewValue;\n        var locals = {};\n\n        // The validity may be set to false via $parsers (see above) if\n        // the model is restricted to selected values. If the model\n        // is set manually it is considered to be valid.\n        if (!isEditable) {\n          modelCtrl.$setValidity('editable', true);\n        }\n\n        if (inputFormatter) {\n          locals.$model = modelValue;\n          return inputFormatter(originalScope, locals);\n        }\n\n        //it might happen that we don't have enough info to properly render input value\n        //we need to check for this situation and simply return model value if we can't apply custom formatting\n        locals[parserResult.itemName] = modelValue;\n        candidateViewValue = parserResult.viewMapper(originalScope, locals);\n        locals[parserResult.itemName] = undefined;\n        emptyViewValue = parserResult.viewMapper(originalScope, locals);\n\n        return candidateViewValue !== emptyViewValue ? candidateViewValue : modelValue;\n      });\n    };\n\n    function extractOptions(ngModelCtrl) {\n      var ngModelOptions;\n\n      if (angular.version.minor < 6) { // in angular < 1.6 $options could be missing\n        // guarantee a value\n        ngModelOptions = ngModelCtrl.$options || {};\n\n        // mimic 1.6+ api\n        ngModelOptions.getOption = function (key) {\n          return ngModelOptions[key];\n        };\n      } else { // in angular >=1.6 $options is always present\n        ngModelOptions = ngModelCtrl.$options;\n      }\n\n      return ngModelOptions;\n    }\n  }])\n\n  .directive('uibTypeahead', function() {\n    return {\n      controller: 'UibTypeaheadController',\n      require: ['ngModel', 'uibTypeahead'],\n      link: function(originalScope, element, attrs, ctrls) {\n        ctrls[1].init(ctrls[0]);\n      }\n    };\n  })\n\n  .directive('uibTypeaheadPopup', ['$$debounce', function($$debounce) {\n    return {\n      scope: {\n        matches: '=',\n        query: '=',\n        active: '=',\n        position: '&',\n        moveInProgress: '=',\n        select: '&',\n        assignIsOpen: '&',\n        debounce: '&'\n      },\n      replace: true,\n      templateUrl: function(element, attrs) {\n        return attrs.popupTemplateUrl || 'uib/template/typeahead/typeahead-popup.html';\n      },\n      link: function(scope, element, attrs) {\n        scope.templateUrl = attrs.templateUrl;\n\n        scope.isOpen = function() {\n          var isDropdownOpen = scope.matches.length > 0;\n          scope.assignIsOpen({ isOpen: isDropdownOpen });\n          return isDropdownOpen;\n        };\n\n        scope.isActive = function(matchIdx) {\n          return scope.active === matchIdx;\n        };\n\n        scope.selectActive = function(matchIdx) {\n          scope.active = matchIdx;\n        };\n\n        scope.selectMatch = function(activeIdx, evt) {\n          var debounce = scope.debounce();\n          if (angular.isNumber(debounce) || angular.isObject(debounce)) {\n            $$debounce(function() {\n              scope.select({activeIdx: activeIdx, evt: evt});\n            }, angular.isNumber(debounce) ? debounce : debounce['default']);\n          } else {\n            scope.select({activeIdx: activeIdx, evt: evt});\n          }\n        };\n      }\n    };\n  }])\n\n  .directive('uibTypeaheadMatch', ['$templateRequest', '$compile', '$parse', function($templateRequest, $compile, $parse) {\n    return {\n      scope: {\n        index: '=',\n        match: '=',\n        query: '='\n      },\n      link: function(scope, element, attrs) {\n        var tplUrl = $parse(attrs.templateUrl)(scope.$parent) || 'uib/template/typeahead/typeahead-match.html';\n        $templateRequest(tplUrl).then(function(tplContent) {\n          var tplEl = angular.element(tplContent.trim());\n          element.replaceWith(tplEl);\n          $compile(tplEl)(scope);\n        });\n      }\n    };\n  }])\n\n  .filter('uibTypeaheadHighlight', ['$sce', '$injector', '$log', function($sce, $injector, $log) {\n    var isSanitizePresent;\n    isSanitizePresent = $injector.has('$sanitize');\n\n    function escapeRegexp(queryToEscape) {\n      // Regex: capture the whole query string and replace it with the string that will be used to match\n      // the results, for example if the capture is \"a\" the result will be \\a\n      return queryToEscape.replace(/([.?*+^$[\\]\\\\(){}|-])/g, '\\\\$1');\n    }\n\n    function containsHtml(matchItem) {\n      return /<.*>/g.test(matchItem);\n    }\n\n    return function(matchItem, query) {\n      if (!isSanitizePresent && containsHtml(matchItem)) {\n        $log.warn('Unsafe use of typeahead please use ngSanitize'); // Warn the user about the danger\n      }\n      matchItem = query ? ('' + matchItem).replace(new RegExp(escapeRegexp(query), 'gi'), '<strong>$&</strong>') : matchItem; // Replaces the capture string with a the same string inside of a \"strong\" tag\n      if (!isSanitizePresent) {\n        matchItem = $sce.trustAsHtml(matchItem); // If $sanitize is not present we pack the string in a $sce object for the ng-bind-html directive\n      }\n      return matchItem;\n    };\n  }]);\n\nangular.module(\"uib/template/accordion/accordion-group.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/accordion/accordion-group.html\",\n    \"<div role=\\\"tab\\\" id=\\\"{{::headingId}}\\\" aria-selected=\\\"{{isOpen}}\\\" class=\\\"panel-heading\\\" ng-keypress=\\\"toggleOpen($event)\\\">\\n\" +\n    \"  <h4 class=\\\"panel-title\\\">\\n\" +\n    \"    <a role=\\\"button\\\" data-toggle=\\\"collapse\\\" href aria-expanded=\\\"{{isOpen}}\\\" aria-controls=\\\"{{::panelId}}\\\" tabindex=\\\"0\\\" class=\\\"accordion-toggle\\\" ng-click=\\\"toggleOpen()\\\" uib-accordion-transclude=\\\"heading\\\" ng-disabled=\\\"isDisabled\\\" uib-tabindex-toggle><span uib-accordion-header ng-class=\\\"{'text-muted': isDisabled}\\\">{{heading}}</span></a>\\n\" +\n    \"  </h4>\\n\" +\n    \"</div>\\n\" +\n    \"<div id=\\\"{{::panelId}}\\\" aria-labelledby=\\\"{{::headingId}}\\\" aria-hidden=\\\"{{!isOpen}}\\\" role=\\\"tabpanel\\\" class=\\\"panel-collapse collapse\\\" uib-collapse=\\\"!isOpen\\\">\\n\" +\n    \"  <div class=\\\"panel-body\\\" ng-transclude></div>\\n\" +\n    \"</div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/accordion/accordion.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/accordion/accordion.html\",\n    \"<div role=\\\"tablist\\\" class=\\\"panel-group\\\" ng-transclude></div>\");\n}]);\n\nangular.module(\"uib/template/alert/alert.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/alert/alert.html\",\n    \"<button ng-show=\\\"closeable\\\" type=\\\"button\\\" class=\\\"close\\\" ng-click=\\\"close({$event: $event})\\\">\\n\" +\n    \"  <span aria-hidden=\\\"true\\\">&times;</span>\\n\" +\n    \"  <span class=\\\"sr-only\\\">Close</span>\\n\" +\n    \"</button>\\n\" +\n    \"<div ng-transclude></div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/carousel/carousel.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/carousel/carousel.html\",\n    \"<div class=\\\"carousel-inner\\\" ng-transclude></div>\\n\" +\n    \"<a role=\\\"button\\\" href class=\\\"left carousel-control\\\" ng-click=\\\"prev()\\\" ng-class=\\\"{ disabled: isPrevDisabled() }\\\" ng-show=\\\"slides.length > 1\\\">\\n\" +\n    \"  <span aria-hidden=\\\"true\\\" class=\\\"glyphicon glyphicon-chevron-left\\\"></span>\\n\" +\n    \"  <span class=\\\"sr-only\\\">previous</span>\\n\" +\n    \"</a>\\n\" +\n    \"<a role=\\\"button\\\" href class=\\\"right carousel-control\\\" ng-click=\\\"next()\\\" ng-class=\\\"{ disabled: isNextDisabled() }\\\" ng-show=\\\"slides.length > 1\\\">\\n\" +\n    \"  <span aria-hidden=\\\"true\\\" class=\\\"glyphicon glyphicon-chevron-right\\\"></span>\\n\" +\n    \"  <span class=\\\"sr-only\\\">next</span>\\n\" +\n    \"</a>\\n\" +\n    \"<ol class=\\\"carousel-indicators\\\" ng-show=\\\"slides.length > 1\\\">\\n\" +\n    \"  <li ng-repeat=\\\"slide in slides | orderBy:indexOfSlide track by $index\\\" ng-class=\\\"{ active: isActive(slide) }\\\" ng-click=\\\"select(slide)\\\">\\n\" +\n    \"    <span class=\\\"sr-only\\\">slide {{ $index + 1 }} of {{ slides.length }}<span ng-if=\\\"isActive(slide)\\\">, currently active</span></span>\\n\" +\n    \"  </li>\\n\" +\n    \"</ol>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/carousel/slide.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/carousel/slide.html\",\n    \"<div class=\\\"text-center\\\" ng-transclude></div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/datepicker/datepicker.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/datepicker/datepicker.html\",\n    \"<div ng-switch=\\\"datepickerMode\\\">\\n\" +\n    \"  <div uib-daypicker ng-switch-when=\\\"day\\\" tabindex=\\\"0\\\" class=\\\"uib-daypicker\\\"></div>\\n\" +\n    \"  <div uib-monthpicker ng-switch-when=\\\"month\\\" tabindex=\\\"0\\\" class=\\\"uib-monthpicker\\\"></div>\\n\" +\n    \"  <div uib-yearpicker ng-switch-when=\\\"year\\\" tabindex=\\\"0\\\" class=\\\"uib-yearpicker\\\"></div>\\n\" +\n    \"</div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/datepicker/day.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/datepicker/day.html\",\n    \"<table role=\\\"grid\\\" aria-labelledby=\\\"{{::uniqueId}}-title\\\" aria-activedescendant=\\\"{{activeDateId}}\\\">\\n\" +\n    \"  <thead>\\n\" +\n    \"    <tr>\\n\" +\n    \"      <th><button type=\\\"button\\\" class=\\\"btn btn-default btn-sm pull-left uib-left\\\" ng-click=\\\"move(-1)\\\" tabindex=\\\"-1\\\"><i aria-hidden=\\\"true\\\" class=\\\"glyphicon glyphicon-chevron-left\\\"></i><span class=\\\"sr-only\\\">previous</span></button></th>\\n\" +\n    \"      <th colspan=\\\"{{::5 + showWeeks}}\\\"><button id=\\\"{{::uniqueId}}-title\\\" role=\\\"heading\\\" aria-live=\\\"assertive\\\" aria-atomic=\\\"true\\\" type=\\\"button\\\" class=\\\"btn btn-default btn-sm uib-title\\\" ng-click=\\\"toggleMode()\\\" ng-disabled=\\\"datepickerMode === maxMode\\\" tabindex=\\\"-1\\\"><strong>{{title}}</strong></button></th>\\n\" +\n    \"      <th><button type=\\\"button\\\" class=\\\"btn btn-default btn-sm pull-right uib-right\\\" ng-click=\\\"move(1)\\\" tabindex=\\\"-1\\\"><i aria-hidden=\\\"true\\\" class=\\\"glyphicon glyphicon-chevron-right\\\"></i><span class=\\\"sr-only\\\">next</span></button></th>\\n\" +\n    \"    </tr>\\n\" +\n    \"    <tr>\\n\" +\n    \"      <th ng-if=\\\"showWeeks\\\" class=\\\"text-center\\\"></th>\\n\" +\n    \"      <th ng-repeat=\\\"label in ::labels track by $index\\\" class=\\\"text-center\\\"><small aria-label=\\\"{{::label.full}}\\\">{{::label.abbr}}</small></th>\\n\" +\n    \"    </tr>\\n\" +\n    \"  </thead>\\n\" +\n    \"  <tbody>\\n\" +\n    \"    <tr class=\\\"uib-weeks\\\" ng-repeat=\\\"row in rows track by $index\\\" role=\\\"row\\\">\\n\" +\n    \"      <td ng-if=\\\"showWeeks\\\" class=\\\"text-center h6\\\"><em>{{ weekNumbers[$index] }}</em></td>\\n\" +\n    \"      <td ng-repeat=\\\"dt in row\\\" class=\\\"uib-day text-center\\\" role=\\\"gridcell\\\"\\n\" +\n    \"        id=\\\"{{::dt.uid}}\\\"\\n\" +\n    \"        ng-class=\\\"::dt.customClass\\\">\\n\" +\n    \"        <button type=\\\"button\\\" class=\\\"btn btn-default btn-sm\\\"\\n\" +\n    \"          uib-is-class=\\\"\\n\" +\n    \"            'btn-info' for selectedDt,\\n\" +\n    \"            'active' for activeDt\\n\" +\n    \"            on dt\\\"\\n\" +\n    \"          ng-click=\\\"select(dt.date)\\\"\\n\" +\n    \"          ng-disabled=\\\"::dt.disabled\\\"\\n\" +\n    \"          tabindex=\\\"-1\\\"><span ng-class=\\\"::{'text-muted': dt.secondary, 'text-info': dt.current}\\\">{{::dt.label}}</span></button>\\n\" +\n    \"      </td>\\n\" +\n    \"    </tr>\\n\" +\n    \"  </tbody>\\n\" +\n    \"</table>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/datepicker/month.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/datepicker/month.html\",\n    \"<table role=\\\"grid\\\" aria-labelledby=\\\"{{::uniqueId}}-title\\\" aria-activedescendant=\\\"{{activeDateId}}\\\">\\n\" +\n    \"  <thead>\\n\" +\n    \"    <tr>\\n\" +\n    \"      <th><button type=\\\"button\\\" class=\\\"btn btn-default btn-sm pull-left uib-left\\\" ng-click=\\\"move(-1)\\\" tabindex=\\\"-1\\\"><i aria-hidden=\\\"true\\\" class=\\\"glyphicon glyphicon-chevron-left\\\"></i><span class=\\\"sr-only\\\">previous</span></button></th>\\n\" +\n    \"      <th colspan=\\\"{{::yearHeaderColspan}}\\\"><button id=\\\"{{::uniqueId}}-title\\\" role=\\\"heading\\\" aria-live=\\\"assertive\\\" aria-atomic=\\\"true\\\" type=\\\"button\\\" class=\\\"btn btn-default btn-sm uib-title\\\" ng-click=\\\"toggleMode()\\\" ng-disabled=\\\"datepickerMode === maxMode\\\" tabindex=\\\"-1\\\"><strong>{{title}}</strong></button></th>\\n\" +\n    \"      <th><button type=\\\"button\\\" class=\\\"btn btn-default btn-sm pull-right uib-right\\\" ng-click=\\\"move(1)\\\" tabindex=\\\"-1\\\"><i aria-hidden=\\\"true\\\" class=\\\"glyphicon glyphicon-chevron-right\\\"></i><span class=\\\"sr-only\\\">next</span></i></button></th>\\n\" +\n    \"    </tr>\\n\" +\n    \"  </thead>\\n\" +\n    \"  <tbody>\\n\" +\n    \"    <tr class=\\\"uib-months\\\" ng-repeat=\\\"row in rows track by $index\\\" role=\\\"row\\\">\\n\" +\n    \"      <td ng-repeat=\\\"dt in row\\\" class=\\\"uib-month text-center\\\" role=\\\"gridcell\\\"\\n\" +\n    \"        id=\\\"{{::dt.uid}}\\\"\\n\" +\n    \"        ng-class=\\\"::dt.customClass\\\">\\n\" +\n    \"        <button type=\\\"button\\\" class=\\\"btn btn-default\\\"\\n\" +\n    \"          uib-is-class=\\\"\\n\" +\n    \"            'btn-info' for selectedDt,\\n\" +\n    \"            'active' for activeDt\\n\" +\n    \"            on dt\\\"\\n\" +\n    \"          ng-click=\\\"select(dt.date)\\\"\\n\" +\n    \"          ng-disabled=\\\"::dt.disabled\\\"\\n\" +\n    \"          tabindex=\\\"-1\\\"><span ng-class=\\\"::{'text-info': dt.current}\\\">{{::dt.label}}</span></button>\\n\" +\n    \"      </td>\\n\" +\n    \"    </tr>\\n\" +\n    \"  </tbody>\\n\" +\n    \"</table>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/datepicker/year.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/datepicker/year.html\",\n    \"<table role=\\\"grid\\\" aria-labelledby=\\\"{{::uniqueId}}-title\\\" aria-activedescendant=\\\"{{activeDateId}}\\\">\\n\" +\n    \"  <thead>\\n\" +\n    \"    <tr>\\n\" +\n    \"      <th><button type=\\\"button\\\" class=\\\"btn btn-default btn-sm pull-left uib-left\\\" ng-click=\\\"move(-1)\\\" tabindex=\\\"-1\\\"><i aria-hidden=\\\"true\\\" class=\\\"glyphicon glyphicon-chevron-left\\\"></i><span class=\\\"sr-only\\\">previous</span></button></th>\\n\" +\n    \"      <th colspan=\\\"{{::columns - 2}}\\\"><button id=\\\"{{::uniqueId}}-title\\\" role=\\\"heading\\\" aria-live=\\\"assertive\\\" aria-atomic=\\\"true\\\" type=\\\"button\\\" class=\\\"btn btn-default btn-sm uib-title\\\" ng-click=\\\"toggleMode()\\\" ng-disabled=\\\"datepickerMode === maxMode\\\" tabindex=\\\"-1\\\"><strong>{{title}}</strong></button></th>\\n\" +\n    \"      <th><button type=\\\"button\\\" class=\\\"btn btn-default btn-sm pull-right uib-right\\\" ng-click=\\\"move(1)\\\" tabindex=\\\"-1\\\"><i aria-hidden=\\\"true\\\" class=\\\"glyphicon glyphicon-chevron-right\\\"></i><span class=\\\"sr-only\\\">next</span></button></th>\\n\" +\n    \"    </tr>\\n\" +\n    \"  </thead>\\n\" +\n    \"  <tbody>\\n\" +\n    \"    <tr class=\\\"uib-years\\\" ng-repeat=\\\"row in rows track by $index\\\" role=\\\"row\\\">\\n\" +\n    \"      <td ng-repeat=\\\"dt in row\\\" class=\\\"uib-year text-center\\\" role=\\\"gridcell\\\"\\n\" +\n    \"        id=\\\"{{::dt.uid}}\\\"\\n\" +\n    \"        ng-class=\\\"::dt.customClass\\\">\\n\" +\n    \"        <button type=\\\"button\\\" class=\\\"btn btn-default\\\"\\n\" +\n    \"          uib-is-class=\\\"\\n\" +\n    \"            'btn-info' for selectedDt,\\n\" +\n    \"            'active' for activeDt\\n\" +\n    \"            on dt\\\"\\n\" +\n    \"          ng-click=\\\"select(dt.date)\\\"\\n\" +\n    \"          ng-disabled=\\\"::dt.disabled\\\"\\n\" +\n    \"          tabindex=\\\"-1\\\"><span ng-class=\\\"::{'text-info': dt.current}\\\">{{::dt.label}}</span></button>\\n\" +\n    \"      </td>\\n\" +\n    \"    </tr>\\n\" +\n    \"  </tbody>\\n\" +\n    \"</table>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/datepickerPopup/popup.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/datepickerPopup/popup.html\",\n    \"<ul role=\\\"presentation\\\" class=\\\"uib-datepicker-popup dropdown-menu uib-position-measure\\\" dropdown-nested ng-if=\\\"isOpen\\\" ng-keydown=\\\"keydown($event)\\\" ng-click=\\\"$event.stopPropagation()\\\">\\n\" +\n    \"  <li ng-transclude></li>\\n\" +\n    \"  <li ng-if=\\\"showButtonBar\\\" class=\\\"uib-button-bar\\\">\\n\" +\n    \"    <span class=\\\"btn-group pull-left\\\">\\n\" +\n    \"      <button type=\\\"button\\\" class=\\\"btn btn-sm btn-info uib-datepicker-current\\\" ng-click=\\\"select('today', $event)\\\" ng-disabled=\\\"isDisabled('today')\\\">{{ getText('current') }}</button>\\n\" +\n    \"      <button type=\\\"button\\\" class=\\\"btn btn-sm btn-danger uib-clear\\\" ng-click=\\\"select(null, $event)\\\">{{ getText('clear') }}</button>\\n\" +\n    \"    </span>\\n\" +\n    \"    <button type=\\\"button\\\" class=\\\"btn btn-sm btn-success pull-right uib-close\\\" ng-click=\\\"close($event)\\\">{{ getText('close') }}</button>\\n\" +\n    \"  </li>\\n\" +\n    \"</ul>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/modal/window.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/modal/window.html\",\n    \"<div class=\\\"modal-dialog {{size ? 'modal-' + size : ''}}\\\"><div class=\\\"modal-content\\\" uib-modal-transclude></div></div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/pager/pager.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/pager/pager.html\",\n    \"<li ng-class=\\\"{disabled: noPrevious()||ngDisabled, previous: align}\\\"><a href ng-click=\\\"selectPage(page - 1, $event)\\\" ng-disabled=\\\"noPrevious()||ngDisabled\\\" uib-tabindex-toggle>{{::getText('previous')}}</a></li>\\n\" +\n    \"<li ng-class=\\\"{disabled: noNext()||ngDisabled, next: align}\\\"><a href ng-click=\\\"selectPage(page + 1, $event)\\\" ng-disabled=\\\"noNext()||ngDisabled\\\" uib-tabindex-toggle>{{::getText('next')}}</a></li>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/pagination/pagination.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/pagination/pagination.html\",\n    \"<li role=\\\"menuitem\\\" ng-if=\\\"::boundaryLinks\\\" ng-class=\\\"{disabled: noPrevious()||ngDisabled}\\\" class=\\\"pagination-first\\\"><a href ng-click=\\\"selectPage(1, $event)\\\" ng-disabled=\\\"noPrevious()||ngDisabled\\\" uib-tabindex-toggle>{{::getText('first')}}</a></li>\\n\" +\n    \"<li role=\\\"menuitem\\\" ng-if=\\\"::directionLinks\\\" ng-class=\\\"{disabled: noPrevious()||ngDisabled}\\\" class=\\\"pagination-prev\\\"><a href ng-click=\\\"selectPage(page - 1, $event)\\\" ng-disabled=\\\"noPrevious()||ngDisabled\\\" uib-tabindex-toggle>{{::getText('previous')}}</a></li>\\n\" +\n    \"<li role=\\\"menuitem\\\" ng-repeat=\\\"page in pages track by $index\\\" ng-class=\\\"{active: page.active,disabled: ngDisabled&&!page.active}\\\" class=\\\"pagination-page\\\"><a href ng-click=\\\"selectPage(page.number, $event)\\\" ng-disabled=\\\"ngDisabled&&!page.active\\\" uib-tabindex-toggle>{{page.text}}</a></li>\\n\" +\n    \"<li role=\\\"menuitem\\\" ng-if=\\\"::directionLinks\\\" ng-class=\\\"{disabled: noNext()||ngDisabled}\\\" class=\\\"pagination-next\\\"><a href ng-click=\\\"selectPage(page + 1, $event)\\\" ng-disabled=\\\"noNext()||ngDisabled\\\" uib-tabindex-toggle>{{::getText('next')}}</a></li>\\n\" +\n    \"<li role=\\\"menuitem\\\" ng-if=\\\"::boundaryLinks\\\" ng-class=\\\"{disabled: noNext()||ngDisabled}\\\" class=\\\"pagination-last\\\"><a href ng-click=\\\"selectPage(totalPages, $event)\\\" ng-disabled=\\\"noNext()||ngDisabled\\\" uib-tabindex-toggle>{{::getText('last')}}</a></li>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/tooltip/tooltip-html-popup.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/tooltip/tooltip-html-popup.html\",\n    \"<div class=\\\"tooltip-arrow\\\"></div>\\n\" +\n    \"<div class=\\\"tooltip-inner\\\" ng-bind-html=\\\"contentExp()\\\"></div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/tooltip/tooltip-popup.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/tooltip/tooltip-popup.html\",\n    \"<div class=\\\"tooltip-arrow\\\"></div>\\n\" +\n    \"<div class=\\\"tooltip-inner\\\" ng-bind=\\\"content\\\"></div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/tooltip/tooltip-template-popup.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/tooltip/tooltip-template-popup.html\",\n    \"<div class=\\\"tooltip-arrow\\\"></div>\\n\" +\n    \"<div class=\\\"tooltip-inner\\\"\\n\" +\n    \"  uib-tooltip-template-transclude=\\\"contentExp()\\\"\\n\" +\n    \"  tooltip-template-transclude-scope=\\\"originScope()\\\"></div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/popover/popover-html.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/popover/popover-html.html\",\n    \"<div class=\\\"arrow\\\"></div>\\n\" +\n    \"\\n\" +\n    \"<div class=\\\"popover-inner\\\">\\n\" +\n    \"    <h3 class=\\\"popover-title\\\" ng-bind=\\\"uibTitle\\\" ng-if=\\\"uibTitle\\\"></h3>\\n\" +\n    \"    <div class=\\\"popover-content\\\" ng-bind-html=\\\"contentExp()\\\"></div>\\n\" +\n    \"</div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/popover/popover-template.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/popover/popover-template.html\",\n    \"<div class=\\\"arrow\\\"></div>\\n\" +\n    \"\\n\" +\n    \"<div class=\\\"popover-inner\\\">\\n\" +\n    \"    <h3 class=\\\"popover-title\\\" ng-bind=\\\"uibTitle\\\" ng-if=\\\"uibTitle\\\"></h3>\\n\" +\n    \"    <div class=\\\"popover-content\\\"\\n\" +\n    \"      uib-tooltip-template-transclude=\\\"contentExp()\\\"\\n\" +\n    \"      tooltip-template-transclude-scope=\\\"originScope()\\\"></div>\\n\" +\n    \"</div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/popover/popover.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/popover/popover.html\",\n    \"<div class=\\\"arrow\\\"></div>\\n\" +\n    \"\\n\" +\n    \"<div class=\\\"popover-inner\\\">\\n\" +\n    \"    <h3 class=\\\"popover-title\\\" ng-bind=\\\"uibTitle\\\" ng-if=\\\"uibTitle\\\"></h3>\\n\" +\n    \"    <div class=\\\"popover-content\\\" ng-bind=\\\"content\\\"></div>\\n\" +\n    \"</div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/progressbar/bar.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/progressbar/bar.html\",\n    \"<div class=\\\"progress-bar\\\" ng-class=\\\"type && 'progress-bar-' + type\\\" role=\\\"progressbar\\\" aria-valuenow=\\\"{{value}}\\\" aria-valuemin=\\\"0\\\" aria-valuemax=\\\"{{max}}\\\" ng-style=\\\"{width: (percent < 100 ? percent : 100) + '%'}\\\" aria-valuetext=\\\"{{percent | number:0}}%\\\" aria-labelledby=\\\"{{::title}}\\\" ng-transclude></div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/progressbar/progress.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/progressbar/progress.html\",\n    \"<div class=\\\"progress\\\" ng-transclude aria-labelledby=\\\"{{::title}}\\\"></div>\");\n}]);\n\nangular.module(\"uib/template/progressbar/progressbar.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/progressbar/progressbar.html\",\n    \"<div class=\\\"progress\\\">\\n\" +\n    \"  <div class=\\\"progress-bar\\\" ng-class=\\\"type && 'progress-bar-' + type\\\" role=\\\"progressbar\\\" aria-valuenow=\\\"{{value}}\\\" aria-valuemin=\\\"0\\\" aria-valuemax=\\\"{{max}}\\\" ng-style=\\\"{width: (percent < 100 ? percent : 100) + '%'}\\\" aria-valuetext=\\\"{{percent | number:0}}%\\\" aria-labelledby=\\\"{{::title}}\\\" ng-transclude></div>\\n\" +\n    \"</div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/rating/rating.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/rating/rating.html\",\n    \"<span ng-mouseleave=\\\"reset()\\\" ng-keydown=\\\"onKeydown($event)\\\" tabindex=\\\"0\\\" role=\\\"slider\\\" aria-valuemin=\\\"0\\\" aria-valuemax=\\\"{{range.length}}\\\" aria-valuenow=\\\"{{value}}\\\" aria-valuetext=\\\"{{title}}\\\">\\n\" +\n    \"    <span ng-repeat-start=\\\"r in range track by $index\\\" class=\\\"sr-only\\\">({{ $index < value ? '*' : ' ' }})</span>\\n\" +\n    \"    <i ng-repeat-end ng-mouseenter=\\\"enter($index + 1)\\\" ng-click=\\\"rate($index + 1)\\\" class=\\\"glyphicon\\\" ng-class=\\\"$index < value && (r.stateOn || 'glyphicon-star') || (r.stateOff || 'glyphicon-star-empty')\\\" ng-attr-title=\\\"{{r.title}}\\\"></i>\\n\" +\n    \"</span>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/tabs/tab.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/tabs/tab.html\",\n    \"<li ng-class=\\\"[{active: active, disabled: disabled}, classes]\\\" class=\\\"uib-tab nav-item\\\">\\n\" +\n    \"  <a href ng-click=\\\"select($event)\\\" class=\\\"nav-link\\\" uib-tab-heading-transclude>{{heading}}</a>\\n\" +\n    \"</li>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/tabs/tabset.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/tabs/tabset.html\",\n    \"<div>\\n\" +\n    \"  <ul class=\\\"nav nav-{{tabset.type || 'tabs'}}\\\" ng-class=\\\"{'nav-stacked': vertical, 'nav-justified': justified}\\\" ng-transclude></ul>\\n\" +\n    \"  <div class=\\\"tab-content\\\">\\n\" +\n    \"    <div class=\\\"tab-pane\\\"\\n\" +\n    \"         ng-repeat=\\\"tab in tabset.tabs\\\"\\n\" +\n    \"         ng-class=\\\"{active: tabset.active === tab.index}\\\"\\n\" +\n    \"         uib-tab-content-transclude=\\\"tab\\\">\\n\" +\n    \"    </div>\\n\" +\n    \"  </div>\\n\" +\n    \"</div>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/timepicker/timepicker.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/timepicker/timepicker.html\",\n    \"<table class=\\\"uib-timepicker\\\">\\n\" +\n    \"  <tbody>\\n\" +\n    \"    <tr class=\\\"text-center\\\" ng-show=\\\"::showSpinners\\\">\\n\" +\n    \"      <td class=\\\"uib-increment hours\\\"><a ng-click=\\\"incrementHours()\\\" ng-class=\\\"{disabled: noIncrementHours()}\\\" class=\\\"btn btn-link\\\" ng-disabled=\\\"noIncrementHours()\\\" tabindex=\\\"-1\\\"><span class=\\\"glyphicon glyphicon-chevron-up\\\"></span></a></td>\\n\" +\n    \"      <td>&nbsp;</td>\\n\" +\n    \"      <td class=\\\"uib-increment minutes\\\"><a ng-click=\\\"incrementMinutes()\\\" ng-class=\\\"{disabled: noIncrementMinutes()}\\\" class=\\\"btn btn-link\\\" ng-disabled=\\\"noIncrementMinutes()\\\" tabindex=\\\"-1\\\"><span class=\\\"glyphicon glyphicon-chevron-up\\\"></span></a></td>\\n\" +\n    \"      <td ng-show=\\\"showSeconds\\\">&nbsp;</td>\\n\" +\n    \"      <td ng-show=\\\"showSeconds\\\" class=\\\"uib-increment seconds\\\"><a ng-click=\\\"incrementSeconds()\\\" ng-class=\\\"{disabled: noIncrementSeconds()}\\\" class=\\\"btn btn-link\\\" ng-disabled=\\\"noIncrementSeconds()\\\" tabindex=\\\"-1\\\"><span class=\\\"glyphicon glyphicon-chevron-up\\\"></span></a></td>\\n\" +\n    \"      <td ng-show=\\\"showMeridian\\\"></td>\\n\" +\n    \"    </tr>\\n\" +\n    \"    <tr>\\n\" +\n    \"      <td class=\\\"form-group uib-time hours\\\" ng-class=\\\"{'has-error': invalidHours}\\\">\\n\" +\n    \"        <input type=\\\"text\\\" placeholder=\\\"HH\\\" ng-model=\\\"hours\\\" ng-change=\\\"updateHours()\\\" class=\\\"form-control text-center\\\" ng-readonly=\\\"::readonlyInput\\\" maxlength=\\\"2\\\" tabindex=\\\"{{::tabindex}}\\\" ng-disabled=\\\"noIncrementHours()\\\" ng-blur=\\\"blur()\\\">\\n\" +\n    \"      </td>\\n\" +\n    \"      <td class=\\\"uib-separator\\\">:</td>\\n\" +\n    \"      <td class=\\\"form-group uib-time minutes\\\" ng-class=\\\"{'has-error': invalidMinutes}\\\">\\n\" +\n    \"        <input type=\\\"text\\\" placeholder=\\\"MM\\\" ng-model=\\\"minutes\\\" ng-change=\\\"updateMinutes()\\\" class=\\\"form-control text-center\\\" ng-readonly=\\\"::readonlyInput\\\" maxlength=\\\"2\\\" tabindex=\\\"{{::tabindex}}\\\" ng-disabled=\\\"noIncrementMinutes()\\\" ng-blur=\\\"blur()\\\">\\n\" +\n    \"      </td>\\n\" +\n    \"      <td ng-show=\\\"showSeconds\\\" class=\\\"uib-separator\\\">:</td>\\n\" +\n    \"      <td class=\\\"form-group uib-time seconds\\\" ng-class=\\\"{'has-error': invalidSeconds}\\\" ng-show=\\\"showSeconds\\\">\\n\" +\n    \"        <input type=\\\"text\\\" placeholder=\\\"SS\\\" ng-model=\\\"seconds\\\" ng-change=\\\"updateSeconds()\\\" class=\\\"form-control text-center\\\" ng-readonly=\\\"readonlyInput\\\" maxlength=\\\"2\\\" tabindex=\\\"{{::tabindex}}\\\" ng-disabled=\\\"noIncrementSeconds()\\\" ng-blur=\\\"blur()\\\">\\n\" +\n    \"      </td>\\n\" +\n    \"      <td ng-show=\\\"showMeridian\\\" class=\\\"uib-time am-pm\\\"><button type=\\\"button\\\" ng-class=\\\"{disabled: noToggleMeridian()}\\\" class=\\\"btn btn-default text-center\\\" ng-click=\\\"toggleMeridian()\\\" ng-disabled=\\\"noToggleMeridian()\\\" tabindex=\\\"{{::tabindex}}\\\">{{meridian}}</button></td>\\n\" +\n    \"    </tr>\\n\" +\n    \"    <tr class=\\\"text-center\\\" ng-show=\\\"::showSpinners\\\">\\n\" +\n    \"      <td class=\\\"uib-decrement hours\\\"><a ng-click=\\\"decrementHours()\\\" ng-class=\\\"{disabled: noDecrementHours()}\\\" class=\\\"btn btn-link\\\" ng-disabled=\\\"noDecrementHours()\\\" tabindex=\\\"-1\\\"><span class=\\\"glyphicon glyphicon-chevron-down\\\"></span></a></td>\\n\" +\n    \"      <td>&nbsp;</td>\\n\" +\n    \"      <td class=\\\"uib-decrement minutes\\\"><a ng-click=\\\"decrementMinutes()\\\" ng-class=\\\"{disabled: noDecrementMinutes()}\\\" class=\\\"btn btn-link\\\" ng-disabled=\\\"noDecrementMinutes()\\\" tabindex=\\\"-1\\\"><span class=\\\"glyphicon glyphicon-chevron-down\\\"></span></a></td>\\n\" +\n    \"      <td ng-show=\\\"showSeconds\\\">&nbsp;</td>\\n\" +\n    \"      <td ng-show=\\\"showSeconds\\\" class=\\\"uib-decrement seconds\\\"><a ng-click=\\\"decrementSeconds()\\\" ng-class=\\\"{disabled: noDecrementSeconds()}\\\" class=\\\"btn btn-link\\\" ng-disabled=\\\"noDecrementSeconds()\\\" tabindex=\\\"-1\\\"><span class=\\\"glyphicon glyphicon-chevron-down\\\"></span></a></td>\\n\" +\n    \"      <td ng-show=\\\"showMeridian\\\"></td>\\n\" +\n    \"    </tr>\\n\" +\n    \"  </tbody>\\n\" +\n    \"</table>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/typeahead/typeahead-match.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/typeahead/typeahead-match.html\",\n    \"<a href\\n\" +\n    \"   tabindex=\\\"-1\\\"\\n\" +\n    \"   ng-bind-html=\\\"match.label | uibTypeaheadHighlight:query\\\"\\n\" +\n    \"   ng-attr-title=\\\"{{match.label}}\\\"></a>\\n\" +\n    \"\");\n}]);\n\nangular.module(\"uib/template/typeahead/typeahead-popup.html\", []).run([\"$templateCache\", function($templateCache) {\n  $templateCache.put(\"uib/template/typeahead/typeahead-popup.html\",\n    \"<ul class=\\\"dropdown-menu\\\" ng-show=\\\"isOpen() && !moveInProgress\\\" ng-style=\\\"{top: position().top+'px', left: position().left+'px'}\\\" role=\\\"listbox\\\" aria-hidden=\\\"{{!isOpen()}}\\\">\\n\" +\n    \"    <li class=\\\"uib-typeahead-match\\\" ng-repeat=\\\"match in matches track by $index\\\" ng-class=\\\"{active: isActive($index) }\\\" ng-mouseenter=\\\"selectActive($index)\\\" ng-click=\\\"selectMatch($index, $event)\\\" role=\\\"option\\\" id=\\\"{{::match.id}}\\\">\\n\" +\n    \"        <div uib-typeahead-match index=\\\"$index\\\" match=\\\"match\\\" query=\\\"query\\\" template-url=\\\"templateUrl\\\"></div>\\n\" +\n    \"    </li>\\n\" +\n    \"</ul>\\n\" +\n    \"\");\n}]);\nangular.module('ui.bootstrap.carousel').run(function() {!angular.$$csp().noInlineStyle && !angular.$$uibCarouselCss && angular.element(document).find('head').prepend('<style type=\"text/css\">.ng-animate.item:not(.left):not(.right){-webkit-transition:0s ease-in-out left;transition:0s ease-in-out left}</style>'); angular.$$uibCarouselCss = true; });\nangular.module('ui.bootstrap.datepicker').run(function() {!angular.$$csp().noInlineStyle && !angular.$$uibDatepickerCss && angular.element(document).find('head').prepend('<style type=\"text/css\">.uib-datepicker .uib-title{width:100%;}.uib-day button,.uib-month button,.uib-year button{min-width:100%;}.uib-left,.uib-right{width:100%}</style>'); angular.$$uibDatepickerCss = true; });\nangular.module('ui.bootstrap.position').run(function() {!angular.$$csp().noInlineStyle && !angular.$$uibPositionCss && angular.element(document).find('head').prepend('<style type=\"text/css\">.uib-position-measure{display:block !important;visibility:hidden !important;position:absolute !important;top:-9999px !important;left:-9999px !important;}.uib-position-scrollbar-measure{position:absolute !important;top:-9999px !important;width:50px !important;height:50px !important;overflow:scroll !important;}.uib-position-body-scrollbar-measure{overflow:scroll !important;}</style>'); angular.$$uibPositionCss = true; });\nangular.module('ui.bootstrap.datepickerPopup').run(function() {!angular.$$csp().noInlineStyle && !angular.$$uibDatepickerpopupCss && angular.element(document).find('head').prepend('<style type=\"text/css\">.uib-datepicker-popup.dropdown-menu{display:block;float:none;margin:0;}.uib-button-bar{padding:10px 9px 2px;}</style>'); angular.$$uibDatepickerpopupCss = true; });\nangular.module('ui.bootstrap.tooltip').run(function() {!angular.$$csp().noInlineStyle && !angular.$$uibTooltipCss && angular.element(document).find('head').prepend('<style type=\"text/css\">[uib-tooltip-popup].tooltip.top-left > .tooltip-arrow,[uib-tooltip-popup].tooltip.top-right > .tooltip-arrow,[uib-tooltip-popup].tooltip.bottom-left > .tooltip-arrow,[uib-tooltip-popup].tooltip.bottom-right > .tooltip-arrow,[uib-tooltip-popup].tooltip.left-top > .tooltip-arrow,[uib-tooltip-popup].tooltip.left-bottom > .tooltip-arrow,[uib-tooltip-popup].tooltip.right-top > .tooltip-arrow,[uib-tooltip-popup].tooltip.right-bottom > .tooltip-arrow,[uib-tooltip-html-popup].tooltip.top-left > .tooltip-arrow,[uib-tooltip-html-popup].tooltip.top-right > .tooltip-arrow,[uib-tooltip-html-popup].tooltip.bottom-left > .tooltip-arrow,[uib-tooltip-html-popup].tooltip.bottom-right > .tooltip-arrow,[uib-tooltip-html-popup].tooltip.left-top > .tooltip-arrow,[uib-tooltip-html-popup].tooltip.left-bottom > .tooltip-arrow,[uib-tooltip-html-popup].tooltip.right-top > .tooltip-arrow,[uib-tooltip-html-popup].tooltip.right-bottom > .tooltip-arrow,[uib-tooltip-template-popup].tooltip.top-left > .tooltip-arrow,[uib-tooltip-template-popup].tooltip.top-right > .tooltip-arrow,[uib-tooltip-template-popup].tooltip.bottom-left > .tooltip-arrow,[uib-tooltip-template-popup].tooltip.bottom-right > .tooltip-arrow,[uib-tooltip-template-popup].tooltip.left-top > .tooltip-arrow,[uib-tooltip-template-popup].tooltip.left-bottom > .tooltip-arrow,[uib-tooltip-template-popup].tooltip.right-top > .tooltip-arrow,[uib-tooltip-template-popup].tooltip.right-bottom > .tooltip-arrow,[uib-popover-popup].popover.top-left > .arrow,[uib-popover-popup].popover.top-right > .arrow,[uib-popover-popup].popover.bottom-left > .arrow,[uib-popover-popup].popover.bottom-right > .arrow,[uib-popover-popup].popover.left-top > .arrow,[uib-popover-popup].popover.left-bottom > .arrow,[uib-popover-popup].popover.right-top > .arrow,[uib-popover-popup].popover.right-bottom > .arrow,[uib-popover-html-popup].popover.top-left > .arrow,[uib-popover-html-popup].popover.top-right > .arrow,[uib-popover-html-popup].popover.bottom-left > .arrow,[uib-popover-html-popup].popover.bottom-right > .arrow,[uib-popover-html-popup].popover.left-top > .arrow,[uib-popover-html-popup].popover.left-bottom > .arrow,[uib-popover-html-popup].popover.right-top > .arrow,[uib-popover-html-popup].popover.right-bottom > .arrow,[uib-popover-template-popup].popover.top-left > .arrow,[uib-popover-template-popup].popover.top-right > .arrow,[uib-popover-template-popup].popover.bottom-left > .arrow,[uib-popover-template-popup].popover.bottom-right > .arrow,[uib-popover-template-popup].popover.left-top > .arrow,[uib-popover-template-popup].popover.left-bottom > .arrow,[uib-popover-template-popup].popover.right-top > .arrow,[uib-popover-template-popup].popover.right-bottom > .arrow{top:auto;bottom:auto;left:auto;right:auto;margin:0;}[uib-popover-popup].popover,[uib-popover-html-popup].popover,[uib-popover-template-popup].popover{display:block !important;}</style>'); angular.$$uibTooltipCss = true; });\nangular.module('ui.bootstrap.timepicker').run(function() {!angular.$$csp().noInlineStyle && !angular.$$uibTimepickerCss && angular.element(document).find('head').prepend('<style type=\"text/css\">.uib-time input{width:50px;}</style>'); angular.$$uibTimepickerCss = true; });\nangular.module('ui.bootstrap.typeahead').run(function() {!angular.$$csp().noInlineStyle && !angular.$$uibTypeaheadCss && angular.element(document).find('head').prepend('<style type=\"text/css\">[uib-typeahead-popup].dropdown-menu{display:block;}</style>'); angular.$$uibTypeaheadCss = true; });\n;(function (root, factory) {\n\tif (typeof exports === \"object\") {\n\t\t// CommonJS\n\t\tmodule.exports = exports = factory();\n\t}\n\telse if (typeof define === \"function\" && define.amd) {\n\t\t// AMD\n\t\tdefine([], factory);\n\t}\n\telse {\n\t\t// Global (browser)\n\t\troot.CryptoJS = factory();\n\t}\n}(this, function () {\n\n\t/*globals window, global, require*/\n\n\t/**\n\t * CryptoJS core components.\n\t */\n\tvar CryptoJS = CryptoJS || (function (Math, undefined) {\n\n\t    var crypto;\n\n\t    // Native crypto from window (Browser)\n\t    if (typeof window !== 'undefined' && window.crypto) {\n\t        crypto = window.crypto;\n\t    }\n\n\t    // Native (experimental IE 11) crypto from window (Browser)\n\t    if (!crypto && typeof window !== 'undefined' && window.msCrypto) {\n\t        crypto = window.msCrypto;\n\t    }\n\n\t    // Native crypto from global (NodeJS)\n\t    if (!crypto && typeof global !== 'undefined' && global.crypto) {\n\t        crypto = global.crypto;\n\t    }\n\n\t    // Native crypto import via require (NodeJS)\n\t    if (!crypto && typeof require === 'function') {\n\t        try {\n\t            crypto = require('crypto');\n\t        } catch (err) {}\n\t    }\n\n\t    /*\n\t     * Cryptographically secure pseudorandom number generator\n\t     *\n\t     * As Math.random() is cryptographically not safe to use\n\t     */\n\t    var cryptoSecureRandomInt = function () {\n\t        if (crypto) {\n\t            // Use getRandomValues method (Browser)\n\t            if (typeof crypto.getRandomValues === 'function') {\n\t                try {\n\t                    return crypto.getRandomValues(new Uint32Array(1))[0];\n\t                } catch (err) {}\n\t            }\n\n\t            // Use randomBytes method (NodeJS)\n\t            if (typeof crypto.randomBytes === 'function') {\n\t                try {\n\t                    return crypto.randomBytes(4).readInt32LE();\n\t                } catch (err) {}\n\t            }\n\t        }\n\n\t        throw new Error('Native crypto module could not be used to get secure random number.');\n\t    };\n\n\t    /*\n\t     * Local polyfill of Object.create\n\n\t     */\n\t    var create = Object.create || (function () {\n\t        function F() {}\n\n\t        return function (obj) {\n\t            var subtype;\n\n\t            F.prototype = obj;\n\n\t            subtype = new F();\n\n\t            F.prototype = null;\n\n\t            return subtype;\n\t        };\n\t    }())\n\n\t    /**\n\t     * CryptoJS namespace.\n\t     */\n\t    var C = {};\n\n\t    /**\n\t     * Library namespace.\n\t     */\n\t    var C_lib = C.lib = {};\n\n\t    /**\n\t     * Base object for prototypal inheritance.\n\t     */\n\t    var Base = C_lib.Base = (function () {\n\n\n\t        return {\n\t            /**\n\t             * Creates a new object that inherits from this object.\n\t             *\n\t             * @param {Object} overrides Properties to copy into the new object.\n\t             *\n\t             * @return {Object} The new object.\n\t             *\n\t             * @static\n\t             *\n\t             * @example\n\t             *\n\t             *     var MyType = CryptoJS.lib.Base.extend({\n\t             *         field: 'value',\n\t             *\n\t             *         method: function () {\n\t             *         }\n\t             *     });\n\t             */\n\t            extend: function (overrides) {\n\t                // Spawn\n\t                var subtype = create(this);\n\n\t                // Augment\n\t                if (overrides) {\n\t                    subtype.mixIn(overrides);\n\t                }\n\n\t                // Create default initializer\n\t                if (!subtype.hasOwnProperty('init') || this.init === subtype.init) {\n\t                    subtype.init = function () {\n\t                        subtype.$super.init.apply(this, arguments);\n\t                    };\n\t                }\n\n\t                // Initializer's prototype is the subtype object\n\t                subtype.init.prototype = subtype;\n\n\t                // Reference supertype\n\t                subtype.$super = this;\n\n\t                return subtype;\n\t            },\n\n\t            /**\n\t             * Extends this object and runs the init method.\n\t             * Arguments to create() will be passed to init().\n\t             *\n\t             * @return {Object} The new object.\n\t             *\n\t             * @static\n\t             *\n\t             * @example\n\t             *\n\t             *     var instance = MyType.create();\n\t             */\n\t            create: function () {\n\t                var instance = this.extend();\n\t                instance.init.apply(instance, arguments);\n\n\t                return instance;\n\t            },\n\n\t            /**\n\t             * Initializes a newly created object.\n\t             * Override this method to add some logic when your objects are created.\n\t             *\n\t             * @example\n\t             *\n\t             *     var MyType = CryptoJS.lib.Base.extend({\n\t             *         init: function () {\n\t             *             // ...\n\t             *         }\n\t             *     });\n\t             */\n\t            init: function () {\n\t            },\n\n\t            /**\n\t             * Copies properties into this object.\n\t             *\n\t             * @param {Object} properties The properties to mix in.\n\t             *\n\t             * @example\n\t             *\n\t             *     MyType.mixIn({\n\t             *         field: 'value'\n\t             *     });\n\t             */\n\t            mixIn: function (properties) {\n\t                for (var propertyName in properties) {\n\t                    if (properties.hasOwnProperty(propertyName)) {\n\t                        this[propertyName] = properties[propertyName];\n\t                    }\n\t                }\n\n\t                // IE won't copy toString using the loop above\n\t                if (properties.hasOwnProperty('toString')) {\n\t                    this.toString = properties.toString;\n\t                }\n\t            },\n\n\t            /**\n\t             * Creates a copy of this object.\n\t             *\n\t             * @return {Object} The clone.\n\t             *\n\t             * @example\n\t             *\n\t             *     var clone = instance.clone();\n\t             */\n\t            clone: function () {\n\t                return this.init.prototype.extend(this);\n\t            }\n\t        };\n\t    }());\n\n\t    /**\n\t     * An array of 32-bit words.\n\t     *\n\t     * @property {Array} words The array of 32-bit words.\n\t     * @property {number} sigBytes The number of significant bytes in this word array.\n\t     */\n\t    var WordArray = C_lib.WordArray = Base.extend({\n\t        /**\n\t         * Initializes a newly created word array.\n\t         *\n\t         * @param {Array} words (Optional) An array of 32-bit words.\n\t         * @param {number} sigBytes (Optional) The number of significant bytes in the words.\n\t         *\n\t         * @example\n\t         *\n\t         *     var wordArray = CryptoJS.lib.WordArray.create();\n\t         *     var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607]);\n\t         *     var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607], 6);\n\t         */\n\t        init: function (words, sigBytes) {\n\t            words = this.words = words || [];\n\n\t            if (sigBytes != undefined) {\n\t                this.sigBytes = sigBytes;\n\t            } else {\n\t                this.sigBytes = words.length * 4;\n\t            }\n\t        },\n\n\t        /**\n\t         * Converts this word array to a string.\n\t         *\n\t         * @param {Encoder} encoder (Optional) The encoding strategy to use. Default: CryptoJS.enc.Hex\n\t         *\n\t         * @return {string} The stringified word array.\n\t         *\n\t         * @example\n\t         *\n\t         *     var string = wordArray + '';\n\t         *     var string = wordArray.toString();\n\t         *     var string = wordArray.toString(CryptoJS.enc.Utf8);\n\t         */\n\t        toString: function (encoder) {\n\t            return (encoder || Hex).stringify(this);\n\t        },\n\n\t        /**\n\t         * Concatenates a word array to this word array.\n\t         *\n\t         * @param {WordArray} wordArray The word array to append.\n\t         *\n\t         * @return {WordArray} This word array.\n\t         *\n\t         * @example\n\t         *\n\t         *     wordArray1.concat(wordArray2);\n\t         */\n\t        concat: function (wordArray) {\n\t            // Shortcuts\n\t            var thisWords = this.words;\n\t            var thatWords = wordArray.words;\n\t            var thisSigBytes = this.sigBytes;\n\t            var thatSigBytes = wordArray.sigBytes;\n\n\t            // Clamp excess bits\n\t            this.clamp();\n\n\t            // Concat\n\t            if (thisSigBytes % 4) {\n\t                // Copy one byte at a time\n\t                for (var i = 0; i < thatSigBytes; i++) {\n\t                    var thatByte = (thatWords[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;\n\t                    thisWords[(thisSigBytes + i) >>> 2] |= thatByte << (24 - ((thisSigBytes + i) % 4) * 8);\n\t                }\n\t            } else {\n\t                // Copy one word at a time\n\t                for (var i = 0; i < thatSigBytes; i += 4) {\n\t                    thisWords[(thisSigBytes + i) >>> 2] = thatWords[i >>> 2];\n\t                }\n\t            }\n\t            this.sigBytes += thatSigBytes;\n\n\t            // Chainable\n\t            return this;\n\t        },\n\n\t        /**\n\t         * Removes insignificant bits.\n\t         *\n\t         * @example\n\t         *\n\t         *     wordArray.clamp();\n\t         */\n\t        clamp: function () {\n\t            // Shortcuts\n\t            var words = this.words;\n\t            var sigBytes = this.sigBytes;\n\n\t            // Clamp\n\t            words[sigBytes >>> 2] &= 0xffffffff << (32 - (sigBytes % 4) * 8);\n\t            words.length = Math.ceil(sigBytes / 4);\n\t        },\n\n\t        /**\n\t         * Creates a copy of this word array.\n\t         *\n\t         * @return {WordArray} The clone.\n\t         *\n\t         * @example\n\t         *\n\t         *     var clone = wordArray.clone();\n\t         */\n\t        clone: function () {\n\t            var clone = Base.clone.call(this);\n\t            clone.words = this.words.slice(0);\n\n\t            return clone;\n\t        },\n\n\t        /**\n\t         * Creates a word array filled with random bytes.\n\t         *\n\t         * @param {number} nBytes The number of random bytes to generate.\n\t         *\n\t         * @return {WordArray} The random word array.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var wordArray = CryptoJS.lib.WordArray.random(16);\n\t         */\n\t        random: function (nBytes) {\n\t            var words = [];\n\n\t            for (var i = 0; i < nBytes; i += 4) {\n\t                words.push(cryptoSecureRandomInt());\n\t            }\n\n\t            return new WordArray.init(words, nBytes);\n\t        }\n\t    });\n\n\t    /**\n\t     * Encoder namespace.\n\t     */\n\t    var C_enc = C.enc = {};\n\n\t    /**\n\t     * Hex encoding strategy.\n\t     */\n\t    var Hex = C_enc.Hex = {\n\t        /**\n\t         * Converts a word array to a hex string.\n\t         *\n\t         * @param {WordArray} wordArray The word array.\n\t         *\n\t         * @return {string} The hex string.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var hexString = CryptoJS.enc.Hex.stringify(wordArray);\n\t         */\n\t        stringify: function (wordArray) {\n\t            // Shortcuts\n\t            var words = wordArray.words;\n\t            var sigBytes = wordArray.sigBytes;\n\n\t            // Convert\n\t            var hexChars = [];\n\t            for (var i = 0; i < sigBytes; i++) {\n\t                var bite = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;\n\t                hexChars.push((bite >>> 4).toString(16));\n\t                hexChars.push((bite & 0x0f).toString(16));\n\t            }\n\n\t            return hexChars.join('');\n\t        },\n\n\t        /**\n\t         * Converts a hex string to a word array.\n\t         *\n\t         * @param {string} hexStr The hex string.\n\t         *\n\t         * @return {WordArray} The word array.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var wordArray = CryptoJS.enc.Hex.parse(hexString);\n\t         */\n\t        parse: function (hexStr) {\n\t            // Shortcut\n\t            var hexStrLength = hexStr.length;\n\n\t            // Convert\n\t            var words = [];\n\t            for (var i = 0; i < hexStrLength; i += 2) {\n\t                words[i >>> 3] |= parseInt(hexStr.substr(i, 2), 16) << (24 - (i % 8) * 4);\n\t            }\n\n\t            return new WordArray.init(words, hexStrLength / 2);\n\t        }\n\t    };\n\n\t    /**\n\t     * Latin1 encoding strategy.\n\t     */\n\t    var Latin1 = C_enc.Latin1 = {\n\t        /**\n\t         * Converts a word array to a Latin1 string.\n\t         *\n\t         * @param {WordArray} wordArray The word array.\n\t         *\n\t         * @return {string} The Latin1 string.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var latin1String = CryptoJS.enc.Latin1.stringify(wordArray);\n\t         */\n\t        stringify: function (wordArray) {\n\t            // Shortcuts\n\t            var words = wordArray.words;\n\t            var sigBytes = wordArray.sigBytes;\n\n\t            // Convert\n\t            var latin1Chars = [];\n\t            for (var i = 0; i < sigBytes; i++) {\n\t                var bite = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;\n\t                latin1Chars.push(String.fromCharCode(bite));\n\t            }\n\n\t            return latin1Chars.join('');\n\t        },\n\n\t        /**\n\t         * Converts a Latin1 string to a word array.\n\t         *\n\t         * @param {string} latin1Str The Latin1 string.\n\t         *\n\t         * @return {WordArray} The word array.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var wordArray = CryptoJS.enc.Latin1.parse(latin1String);\n\t         */\n\t        parse: function (latin1Str) {\n\t            // Shortcut\n\t            var latin1StrLength = latin1Str.length;\n\n\t            // Convert\n\t            var words = [];\n\t            for (var i = 0; i < latin1StrLength; i++) {\n\t                words[i >>> 2] |= (latin1Str.charCodeAt(i) & 0xff) << (24 - (i % 4) * 8);\n\t            }\n\n\t            return new WordArray.init(words, latin1StrLength);\n\t        }\n\t    };\n\n\t    /**\n\t     * UTF-8 encoding strategy.\n\t     */\n\t    var Utf8 = C_enc.Utf8 = {\n\t        /**\n\t         * Converts a word array to a UTF-8 string.\n\t         *\n\t         * @param {WordArray} wordArray The word array.\n\t         *\n\t         * @return {string} The UTF-8 string.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var utf8String = CryptoJS.enc.Utf8.stringify(wordArray);\n\t         */\n\t        stringify: function (wordArray) {\n\t            try {\n\t                return decodeURIComponent(escape(Latin1.stringify(wordArray)));\n\t            } catch (e) {\n\t                throw new Error('Malformed UTF-8 data');\n\t            }\n\t        },\n\n\t        /**\n\t         * Converts a UTF-8 string to a word array.\n\t         *\n\t         * @param {string} utf8Str The UTF-8 string.\n\t         *\n\t         * @return {WordArray} The word array.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var wordArray = CryptoJS.enc.Utf8.parse(utf8String);\n\t         */\n\t        parse: function (utf8Str) {\n\t            return Latin1.parse(unescape(encodeURIComponent(utf8Str)));\n\t        }\n\t    };\n\n\t    /**\n\t     * Abstract buffered block algorithm template.\n\t     *\n\t     * The property blockSize must be implemented in a concrete subtype.\n\t     *\n\t     * @property {number} _minBufferSize The number of blocks that should be kept unprocessed in the buffer. Default: 0\n\t     */\n\t    var BufferedBlockAlgorithm = C_lib.BufferedBlockAlgorithm = Base.extend({\n\t        /**\n\t         * Resets this block algorithm's data buffer to its initial state.\n\t         *\n\t         * @example\n\t         *\n\t         *     bufferedBlockAlgorithm.reset();\n\t         */\n\t        reset: function () {\n\t            // Initial values\n\t            this._data = new WordArray.init();\n\t            this._nDataBytes = 0;\n\t        },\n\n\t        /**\n\t         * Adds new data to this block algorithm's buffer.\n\t         *\n\t         * @param {WordArray|string} data The data to append. Strings are converted to a WordArray using UTF-8.\n\t         *\n\t         * @example\n\t         *\n\t         *     bufferedBlockAlgorithm._append('data');\n\t         *     bufferedBlockAlgorithm._append(wordArray);\n\t         */\n\t        _append: function (data) {\n\t            // Convert string to WordArray, else assume WordArray already\n\t            if (typeof data == 'string') {\n\t                data = Utf8.parse(data);\n\t            }\n\n\t            // Append\n\t            this._data.concat(data);\n\t            this._nDataBytes += data.sigBytes;\n\t        },\n\n\t        /**\n\t         * Processes available data blocks.\n\t         *\n\t         * This method invokes _doProcessBlock(offset), which must be implemented by a concrete subtype.\n\t         *\n\t         * @param {boolean} doFlush Whether all blocks and partial blocks should be processed.\n\t         *\n\t         * @return {WordArray} The processed data.\n\t         *\n\t         * @example\n\t         *\n\t         *     var processedData = bufferedBlockAlgorithm._process();\n\t         *     var processedData = bufferedBlockAlgorithm._process(!!'flush');\n\t         */\n\t        _process: function (doFlush) {\n\t            var processedWords;\n\n\t            // Shortcuts\n\t            var data = this._data;\n\t            var dataWords = data.words;\n\t            var dataSigBytes = data.sigBytes;\n\t            var blockSize = this.blockSize;\n\t            var blockSizeBytes = blockSize * 4;\n\n\t            // Count blocks ready\n\t            var nBlocksReady = dataSigBytes / blockSizeBytes;\n\t            if (doFlush) {\n\t                // Round up to include partial blocks\n\t                nBlocksReady = Math.ceil(nBlocksReady);\n\t            } else {\n\t                // Round down to include only full blocks,\n\t                // less the number of blocks that must remain in the buffer\n\t                nBlocksReady = Math.max((nBlocksReady | 0) - this._minBufferSize, 0);\n\t            }\n\n\t            // Count words ready\n\t            var nWordsReady = nBlocksReady * blockSize;\n\n\t            // Count bytes ready\n\t            var nBytesReady = Math.min(nWordsReady * 4, dataSigBytes);\n\n\t            // Process blocks\n\t            if (nWordsReady) {\n\t                for (var offset = 0; offset < nWordsReady; offset += blockSize) {\n\t                    // Perform concrete-algorithm logic\n\t                    this._doProcessBlock(dataWords, offset);\n\t                }\n\n\t                // Remove processed words\n\t                processedWords = dataWords.splice(0, nWordsReady);\n\t                data.sigBytes -= nBytesReady;\n\t            }\n\n\t            // Return processed words\n\t            return new WordArray.init(processedWords, nBytesReady);\n\t        },\n\n\t        /**\n\t         * Creates a copy of this object.\n\t         *\n\t         * @return {Object} The clone.\n\t         *\n\t         * @example\n\t         *\n\t         *     var clone = bufferedBlockAlgorithm.clone();\n\t         */\n\t        clone: function () {\n\t            var clone = Base.clone.call(this);\n\t            clone._data = this._data.clone();\n\n\t            return clone;\n\t        },\n\n\t        _minBufferSize: 0\n\t    });\n\n\t    /**\n\t     * Abstract hasher template.\n\t     *\n\t     * @property {number} blockSize The number of 32-bit words this hasher operates on. Default: 16 (512 bits)\n\t     */\n\t    var Hasher = C_lib.Hasher = BufferedBlockAlgorithm.extend({\n\t        /**\n\t         * Configuration options.\n\t         */\n\t        cfg: Base.extend(),\n\n\t        /**\n\t         * Initializes a newly created hasher.\n\t         *\n\t         * @param {Object} cfg (Optional) The configuration options to use for this hash computation.\n\t         *\n\t         * @example\n\t         *\n\t         *     var hasher = CryptoJS.algo.SHA256.create();\n\t         */\n\t        init: function (cfg) {\n\t            // Apply config defaults\n\t            this.cfg = this.cfg.extend(cfg);\n\n\t            // Set initial values\n\t            this.reset();\n\t        },\n\n\t        /**\n\t         * Resets this hasher to its initial state.\n\t         *\n\t         * @example\n\t         *\n\t         *     hasher.reset();\n\t         */\n\t        reset: function () {\n\t            // Reset data buffer\n\t            BufferedBlockAlgorithm.reset.call(this);\n\n\t            // Perform concrete-hasher logic\n\t            this._doReset();\n\t        },\n\n\t        /**\n\t         * Updates this hasher with a message.\n\t         *\n\t         * @param {WordArray|string} messageUpdate The message to append.\n\t         *\n\t         * @return {Hasher} This hasher.\n\t         *\n\t         * @example\n\t         *\n\t         *     hasher.update('message');\n\t         *     hasher.update(wordArray);\n\t         */\n\t        update: function (messageUpdate) {\n\t            // Append\n\t            this._append(messageUpdate);\n\n\t            // Update the hash\n\t            this._process();\n\n\t            // Chainable\n\t            return this;\n\t        },\n\n\t        /**\n\t         * Finalizes the hash computation.\n\t         * Note that the finalize operation is effectively a destructive, read-once operation.\n\t         *\n\t         * @param {WordArray|string} messageUpdate (Optional) A final message update.\n\t         *\n\t         * @return {WordArray} The hash.\n\t         *\n\t         * @example\n\t         *\n\t         *     var hash = hasher.finalize();\n\t         *     var hash = hasher.finalize('message');\n\t         *     var hash = hasher.finalize(wordArray);\n\t         */\n\t        finalize: function (messageUpdate) {\n\t            // Final message update\n\t            if (messageUpdate) {\n\t                this._append(messageUpdate);\n\t            }\n\n\t            // Perform concrete-hasher logic\n\t            var hash = this._doFinalize();\n\n\t            return hash;\n\t        },\n\n\t        blockSize: 512/32,\n\n\t        /**\n\t         * Creates a shortcut function to a hasher's object interface.\n\t         *\n\t         * @param {Hasher} hasher The hasher to create a helper for.\n\t         *\n\t         * @return {Function} The shortcut function.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var SHA256 = CryptoJS.lib.Hasher._createHelper(CryptoJS.algo.SHA256);\n\t         */\n\t        _createHelper: function (hasher) {\n\t            return function (message, cfg) {\n\t                return new hasher.init(cfg).finalize(message);\n\t            };\n\t        },\n\n\t        /**\n\t         * Creates a shortcut function to the HMAC's object interface.\n\t         *\n\t         * @param {Hasher} hasher The hasher to use in this HMAC helper.\n\t         *\n\t         * @return {Function} The shortcut function.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var HmacSHA256 = CryptoJS.lib.Hasher._createHmacHelper(CryptoJS.algo.SHA256);\n\t         */\n\t        _createHmacHelper: function (hasher) {\n\t            return function (message, key) {\n\t                return new C_algo.HMAC.init(hasher, key).finalize(message);\n\t            };\n\t        }\n\t    });\n\n\t    /**\n\t     * Algorithm namespace.\n\t     */\n\t    var C_algo = C.algo = {};\n\n\t    return C;\n\t}(Math));\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var WordArray = C_lib.WordArray;\n\t    var C_enc = C.enc;\n\n\t    /**\n\t     * Base64 encoding strategy.\n\t     */\n\t    var Base64 = C_enc.Base64 = {\n\t        /**\n\t         * Converts a word array to a Base64 string.\n\t         *\n\t         * @param {WordArray} wordArray The word array.\n\t         *\n\t         * @return {string} The Base64 string.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var base64String = CryptoJS.enc.Base64.stringify(wordArray);\n\t         */\n\t        stringify: function (wordArray) {\n\t            // Shortcuts\n\t            var words = wordArray.words;\n\t            var sigBytes = wordArray.sigBytes;\n\t            var map = this._map;\n\n\t            // Clamp excess bits\n\t            wordArray.clamp();\n\n\t            // Convert\n\t            var base64Chars = [];\n\t            for (var i = 0; i < sigBytes; i += 3) {\n\t                var byte1 = (words[i >>> 2]       >>> (24 - (i % 4) * 8))       & 0xff;\n\t                var byte2 = (words[(i + 1) >>> 2] >>> (24 - ((i + 1) % 4) * 8)) & 0xff;\n\t                var byte3 = (words[(i + 2) >>> 2] >>> (24 - ((i + 2) % 4) * 8)) & 0xff;\n\n\t                var triplet = (byte1 << 16) | (byte2 << 8) | byte3;\n\n\t                for (var j = 0; (j < 4) && (i + j * 0.75 < sigBytes); j++) {\n\t                    base64Chars.push(map.charAt((triplet >>> (6 * (3 - j))) & 0x3f));\n\t                }\n\t            }\n\n\t            // Add padding\n\t            var paddingChar = map.charAt(64);\n\t            if (paddingChar) {\n\t                while (base64Chars.length % 4) {\n\t                    base64Chars.push(paddingChar);\n\t                }\n\t            }\n\n\t            return base64Chars.join('');\n\t        },\n\n\t        /**\n\t         * Converts a Base64 string to a word array.\n\t         *\n\t         * @param {string} base64Str The Base64 string.\n\t         *\n\t         * @return {WordArray} The word array.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var wordArray = CryptoJS.enc.Base64.parse(base64String);\n\t         */\n\t        parse: function (base64Str) {\n\t            // Shortcuts\n\t            var base64StrLength = base64Str.length;\n\t            var map = this._map;\n\t            var reverseMap = this._reverseMap;\n\n\t            if (!reverseMap) {\n\t                    reverseMap = this._reverseMap = [];\n\t                    for (var j = 0; j < map.length; j++) {\n\t                        reverseMap[map.charCodeAt(j)] = j;\n\t                    }\n\t            }\n\n\t            // Ignore padding\n\t            var paddingChar = map.charAt(64);\n\t            if (paddingChar) {\n\t                var paddingIndex = base64Str.indexOf(paddingChar);\n\t                if (paddingIndex !== -1) {\n\t                    base64StrLength = paddingIndex;\n\t                }\n\t            }\n\n\t            // Convert\n\t            return parseLoop(base64Str, base64StrLength, reverseMap);\n\n\t        },\n\n\t        _map: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='\n\t    };\n\n\t    function parseLoop(base64Str, base64StrLength, reverseMap) {\n\t      var words = [];\n\t      var nBytes = 0;\n\t      for (var i = 0; i < base64StrLength; i++) {\n\t          if (i % 4) {\n\t              var bits1 = reverseMap[base64Str.charCodeAt(i - 1)] << ((i % 4) * 2);\n\t              var bits2 = reverseMap[base64Str.charCodeAt(i)] >>> (6 - (i % 4) * 2);\n\t              var bitsCombined = bits1 | bits2;\n\t              words[nBytes >>> 2] |= bitsCombined << (24 - (nBytes % 4) * 8);\n\t              nBytes++;\n\t          }\n\t      }\n\t      return WordArray.create(words, nBytes);\n\t    }\n\t}());\n\n\n\t(function (Math) {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var WordArray = C_lib.WordArray;\n\t    var Hasher = C_lib.Hasher;\n\t    var C_algo = C.algo;\n\n\t    // Constants table\n\t    var T = [];\n\n\t    // Compute constants\n\t    (function () {\n\t        for (var i = 0; i < 64; i++) {\n\t            T[i] = (Math.abs(Math.sin(i + 1)) * 0x100000000) | 0;\n\t        }\n\t    }());\n\n\t    /**\n\t     * MD5 hash algorithm.\n\t     */\n\t    var MD5 = C_algo.MD5 = Hasher.extend({\n\t        _doReset: function () {\n\t            this._hash = new WordArray.init([\n\t                0x67452301, 0xefcdab89,\n\t                0x98badcfe, 0x10325476\n\t            ]);\n\t        },\n\n\t        _doProcessBlock: function (M, offset) {\n\t            // Swap endian\n\t            for (var i = 0; i < 16; i++) {\n\t                // Shortcuts\n\t                var offset_i = offset + i;\n\t                var M_offset_i = M[offset_i];\n\n\t                M[offset_i] = (\n\t                    (((M_offset_i << 8)  | (M_offset_i >>> 24)) & 0x00ff00ff) |\n\t                    (((M_offset_i << 24) | (M_offset_i >>> 8))  & 0xff00ff00)\n\t                );\n\t            }\n\n\t            // Shortcuts\n\t            var H = this._hash.words;\n\n\t            var M_offset_0  = M[offset + 0];\n\t            var M_offset_1  = M[offset + 1];\n\t            var M_offset_2  = M[offset + 2];\n\t            var M_offset_3  = M[offset + 3];\n\t            var M_offset_4  = M[offset + 4];\n\t            var M_offset_5  = M[offset + 5];\n\t            var M_offset_6  = M[offset + 6];\n\t            var M_offset_7  = M[offset + 7];\n\t            var M_offset_8  = M[offset + 8];\n\t            var M_offset_9  = M[offset + 9];\n\t            var M_offset_10 = M[offset + 10];\n\t            var M_offset_11 = M[offset + 11];\n\t            var M_offset_12 = M[offset + 12];\n\t            var M_offset_13 = M[offset + 13];\n\t            var M_offset_14 = M[offset + 14];\n\t            var M_offset_15 = M[offset + 15];\n\n\t            // Working varialbes\n\t            var a = H[0];\n\t            var b = H[1];\n\t            var c = H[2];\n\t            var d = H[3];\n\n\t            // Computation\n\t            a = FF(a, b, c, d, M_offset_0,  7,  T[0]);\n\t            d = FF(d, a, b, c, M_offset_1,  12, T[1]);\n\t            c = FF(c, d, a, b, M_offset_2,  17, T[2]);\n\t            b = FF(b, c, d, a, M_offset_3,  22, T[3]);\n\t            a = FF(a, b, c, d, M_offset_4,  7,  T[4]);\n\t            d = FF(d, a, b, c, M_offset_5,  12, T[5]);\n\t            c = FF(c, d, a, b, M_offset_6,  17, T[6]);\n\t            b = FF(b, c, d, a, M_offset_7,  22, T[7]);\n\t            a = FF(a, b, c, d, M_offset_8,  7,  T[8]);\n\t            d = FF(d, a, b, c, M_offset_9,  12, T[9]);\n\t            c = FF(c, d, a, b, M_offset_10, 17, T[10]);\n\t            b = FF(b, c, d, a, M_offset_11, 22, T[11]);\n\t            a = FF(a, b, c, d, M_offset_12, 7,  T[12]);\n\t            d = FF(d, a, b, c, M_offset_13, 12, T[13]);\n\t            c = FF(c, d, a, b, M_offset_14, 17, T[14]);\n\t            b = FF(b, c, d, a, M_offset_15, 22, T[15]);\n\n\t            a = GG(a, b, c, d, M_offset_1,  5,  T[16]);\n\t            d = GG(d, a, b, c, M_offset_6,  9,  T[17]);\n\t            c = GG(c, d, a, b, M_offset_11, 14, T[18]);\n\t            b = GG(b, c, d, a, M_offset_0,  20, T[19]);\n\t            a = GG(a, b, c, d, M_offset_5,  5,  T[20]);\n\t            d = GG(d, a, b, c, M_offset_10, 9,  T[21]);\n\t            c = GG(c, d, a, b, M_offset_15, 14, T[22]);\n\t            b = GG(b, c, d, a, M_offset_4,  20, T[23]);\n\t            a = GG(a, b, c, d, M_offset_9,  5,  T[24]);\n\t            d = GG(d, a, b, c, M_offset_14, 9,  T[25]);\n\t            c = GG(c, d, a, b, M_offset_3,  14, T[26]);\n\t            b = GG(b, c, d, a, M_offset_8,  20, T[27]);\n\t            a = GG(a, b, c, d, M_offset_13, 5,  T[28]);\n\t            d = GG(d, a, b, c, M_offset_2,  9,  T[29]);\n\t            c = GG(c, d, a, b, M_offset_7,  14, T[30]);\n\t            b = GG(b, c, d, a, M_offset_12, 20, T[31]);\n\n\t            a = HH(a, b, c, d, M_offset_5,  4,  T[32]);\n\t            d = HH(d, a, b, c, M_offset_8,  11, T[33]);\n\t            c = HH(c, d, a, b, M_offset_11, 16, T[34]);\n\t            b = HH(b, c, d, a, M_offset_14, 23, T[35]);\n\t            a = HH(a, b, c, d, M_offset_1,  4,  T[36]);\n\t            d = HH(d, a, b, c, M_offset_4,  11, T[37]);\n\t            c = HH(c, d, a, b, M_offset_7,  16, T[38]);\n\t            b = HH(b, c, d, a, M_offset_10, 23, T[39]);\n\t            a = HH(a, b, c, d, M_offset_13, 4,  T[40]);\n\t            d = HH(d, a, b, c, M_offset_0,  11, T[41]);\n\t            c = HH(c, d, a, b, M_offset_3,  16, T[42]);\n\t            b = HH(b, c, d, a, M_offset_6,  23, T[43]);\n\t            a = HH(a, b, c, d, M_offset_9,  4,  T[44]);\n\t            d = HH(d, a, b, c, M_offset_12, 11, T[45]);\n\t            c = HH(c, d, a, b, M_offset_15, 16, T[46]);\n\t            b = HH(b, c, d, a, M_offset_2,  23, T[47]);\n\n\t            a = II(a, b, c, d, M_offset_0,  6,  T[48]);\n\t            d = II(d, a, b, c, M_offset_7,  10, T[49]);\n\t            c = II(c, d, a, b, M_offset_14, 15, T[50]);\n\t            b = II(b, c, d, a, M_offset_5,  21, T[51]);\n\t            a = II(a, b, c, d, M_offset_12, 6,  T[52]);\n\t            d = II(d, a, b, c, M_offset_3,  10, T[53]);\n\t            c = II(c, d, a, b, M_offset_10, 15, T[54]);\n\t            b = II(b, c, d, a, M_offset_1,  21, T[55]);\n\t            a = II(a, b, c, d, M_offset_8,  6,  T[56]);\n\t            d = II(d, a, b, c, M_offset_15, 10, T[57]);\n\t            c = II(c, d, a, b, M_offset_6,  15, T[58]);\n\t            b = II(b, c, d, a, M_offset_13, 21, T[59]);\n\t            a = II(a, b, c, d, M_offset_4,  6,  T[60]);\n\t            d = II(d, a, b, c, M_offset_11, 10, T[61]);\n\t            c = II(c, d, a, b, M_offset_2,  15, T[62]);\n\t            b = II(b, c, d, a, M_offset_9,  21, T[63]);\n\n\t            // Intermediate hash value\n\t            H[0] = (H[0] + a) | 0;\n\t            H[1] = (H[1] + b) | 0;\n\t            H[2] = (H[2] + c) | 0;\n\t            H[3] = (H[3] + d) | 0;\n\t        },\n\n\t        _doFinalize: function () {\n\t            // Shortcuts\n\t            var data = this._data;\n\t            var dataWords = data.words;\n\n\t            var nBitsTotal = this._nDataBytes * 8;\n\t            var nBitsLeft = data.sigBytes * 8;\n\n\t            // Add padding\n\t            dataWords[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);\n\n\t            var nBitsTotalH = Math.floor(nBitsTotal / 0x100000000);\n\t            var nBitsTotalL = nBitsTotal;\n\t            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 15] = (\n\t                (((nBitsTotalH << 8)  | (nBitsTotalH >>> 24)) & 0x00ff00ff) |\n\t                (((nBitsTotalH << 24) | (nBitsTotalH >>> 8))  & 0xff00ff00)\n\t            );\n\t            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 14] = (\n\t                (((nBitsTotalL << 8)  | (nBitsTotalL >>> 24)) & 0x00ff00ff) |\n\t                (((nBitsTotalL << 24) | (nBitsTotalL >>> 8))  & 0xff00ff00)\n\t            );\n\n\t            data.sigBytes = (dataWords.length + 1) * 4;\n\n\t            // Hash final blocks\n\t            this._process();\n\n\t            // Shortcuts\n\t            var hash = this._hash;\n\t            var H = hash.words;\n\n\t            // Swap endian\n\t            for (var i = 0; i < 4; i++) {\n\t                // Shortcut\n\t                var H_i = H[i];\n\n\t                H[i] = (((H_i << 8)  | (H_i >>> 24)) & 0x00ff00ff) |\n\t                       (((H_i << 24) | (H_i >>> 8))  & 0xff00ff00);\n\t            }\n\n\t            // Return final computed hash\n\t            return hash;\n\t        },\n\n\t        clone: function () {\n\t            var clone = Hasher.clone.call(this);\n\t            clone._hash = this._hash.clone();\n\n\t            return clone;\n\t        }\n\t    });\n\n\t    function FF(a, b, c, d, x, s, t) {\n\t        var n = a + ((b & c) | (~b & d)) + x + t;\n\t        return ((n << s) | (n >>> (32 - s))) + b;\n\t    }\n\n\t    function GG(a, b, c, d, x, s, t) {\n\t        var n = a + ((b & d) | (c & ~d)) + x + t;\n\t        return ((n << s) | (n >>> (32 - s))) + b;\n\t    }\n\n\t    function HH(a, b, c, d, x, s, t) {\n\t        var n = a + (b ^ c ^ d) + x + t;\n\t        return ((n << s) | (n >>> (32 - s))) + b;\n\t    }\n\n\t    function II(a, b, c, d, x, s, t) {\n\t        var n = a + (c ^ (b | ~d)) + x + t;\n\t        return ((n << s) | (n >>> (32 - s))) + b;\n\t    }\n\n\t    /**\n\t     * Shortcut function to the hasher's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     *\n\t     * @return {WordArray} The hash.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hash = CryptoJS.MD5('message');\n\t     *     var hash = CryptoJS.MD5(wordArray);\n\t     */\n\t    C.MD5 = Hasher._createHelper(MD5);\n\n\t    /**\n\t     * Shortcut function to the HMAC's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     * @param {WordArray|string} key The secret key.\n\t     *\n\t     * @return {WordArray} The HMAC.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hmac = CryptoJS.HmacMD5(message, key);\n\t     */\n\t    C.HmacMD5 = Hasher._createHmacHelper(MD5);\n\t}(Math));\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var WordArray = C_lib.WordArray;\n\t    var Hasher = C_lib.Hasher;\n\t    var C_algo = C.algo;\n\n\t    // Reusable object\n\t    var W = [];\n\n\t    /**\n\t     * SHA-1 hash algorithm.\n\t     */\n\t    var SHA1 = C_algo.SHA1 = Hasher.extend({\n\t        _doReset: function () {\n\t            this._hash = new WordArray.init([\n\t                0x67452301, 0xefcdab89,\n\t                0x98badcfe, 0x10325476,\n\t                0xc3d2e1f0\n\t            ]);\n\t        },\n\n\t        _doProcessBlock: function (M, offset) {\n\t            // Shortcut\n\t            var H = this._hash.words;\n\n\t            // Working variables\n\t            var a = H[0];\n\t            var b = H[1];\n\t            var c = H[2];\n\t            var d = H[3];\n\t            var e = H[4];\n\n\t            // Computation\n\t            for (var i = 0; i < 80; i++) {\n\t                if (i < 16) {\n\t                    W[i] = M[offset + i] | 0;\n\t                } else {\n\t                    var n = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16];\n\t                    W[i] = (n << 1) | (n >>> 31);\n\t                }\n\n\t                var t = ((a << 5) | (a >>> 27)) + e + W[i];\n\t                if (i < 20) {\n\t                    t += ((b & c) | (~b & d)) + 0x5a827999;\n\t                } else if (i < 40) {\n\t                    t += (b ^ c ^ d) + 0x6ed9eba1;\n\t                } else if (i < 60) {\n\t                    t += ((b & c) | (b & d) | (c & d)) - 0x70e44324;\n\t                } else /* if (i < 80) */ {\n\t                    t += (b ^ c ^ d) - 0x359d3e2a;\n\t                }\n\n\t                e = d;\n\t                d = c;\n\t                c = (b << 30) | (b >>> 2);\n\t                b = a;\n\t                a = t;\n\t            }\n\n\t            // Intermediate hash value\n\t            H[0] = (H[0] + a) | 0;\n\t            H[1] = (H[1] + b) | 0;\n\t            H[2] = (H[2] + c) | 0;\n\t            H[3] = (H[3] + d) | 0;\n\t            H[4] = (H[4] + e) | 0;\n\t        },\n\n\t        _doFinalize: function () {\n\t            // Shortcuts\n\t            var data = this._data;\n\t            var dataWords = data.words;\n\n\t            var nBitsTotal = this._nDataBytes * 8;\n\t            var nBitsLeft = data.sigBytes * 8;\n\n\t            // Add padding\n\t            dataWords[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);\n\t            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 14] = Math.floor(nBitsTotal / 0x100000000);\n\t            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 15] = nBitsTotal;\n\t            data.sigBytes = dataWords.length * 4;\n\n\t            // Hash final blocks\n\t            this._process();\n\n\t            // Return final computed hash\n\t            return this._hash;\n\t        },\n\n\t        clone: function () {\n\t            var clone = Hasher.clone.call(this);\n\t            clone._hash = this._hash.clone();\n\n\t            return clone;\n\t        }\n\t    });\n\n\t    /**\n\t     * Shortcut function to the hasher's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     *\n\t     * @return {WordArray} The hash.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hash = CryptoJS.SHA1('message');\n\t     *     var hash = CryptoJS.SHA1(wordArray);\n\t     */\n\t    C.SHA1 = Hasher._createHelper(SHA1);\n\n\t    /**\n\t     * Shortcut function to the HMAC's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     * @param {WordArray|string} key The secret key.\n\t     *\n\t     * @return {WordArray} The HMAC.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hmac = CryptoJS.HmacSHA1(message, key);\n\t     */\n\t    C.HmacSHA1 = Hasher._createHmacHelper(SHA1);\n\t}());\n\n\n\t(function (Math) {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var WordArray = C_lib.WordArray;\n\t    var Hasher = C_lib.Hasher;\n\t    var C_algo = C.algo;\n\n\t    // Initialization and round constants tables\n\t    var H = [];\n\t    var K = [];\n\n\t    // Compute constants\n\t    (function () {\n\t        function isPrime(n) {\n\t            var sqrtN = Math.sqrt(n);\n\t            for (var factor = 2; factor <= sqrtN; factor++) {\n\t                if (!(n % factor)) {\n\t                    return false;\n\t                }\n\t            }\n\n\t            return true;\n\t        }\n\n\t        function getFractionalBits(n) {\n\t            return ((n - (n | 0)) * 0x100000000) | 0;\n\t        }\n\n\t        var n = 2;\n\t        var nPrime = 0;\n\t        while (nPrime < 64) {\n\t            if (isPrime(n)) {\n\t                if (nPrime < 8) {\n\t                    H[nPrime] = getFractionalBits(Math.pow(n, 1 / 2));\n\t                }\n\t                K[nPrime] = getFractionalBits(Math.pow(n, 1 / 3));\n\n\t                nPrime++;\n\t            }\n\n\t            n++;\n\t        }\n\t    }());\n\n\t    // Reusable object\n\t    var W = [];\n\n\t    /**\n\t     * SHA-256 hash algorithm.\n\t     */\n\t    var SHA256 = C_algo.SHA256 = Hasher.extend({\n\t        _doReset: function () {\n\t            this._hash = new WordArray.init(H.slice(0));\n\t        },\n\n\t        _doProcessBlock: function (M, offset) {\n\t            // Shortcut\n\t            var H = this._hash.words;\n\n\t            // Working variables\n\t            var a = H[0];\n\t            var b = H[1];\n\t            var c = H[2];\n\t            var d = H[3];\n\t            var e = H[4];\n\t            var f = H[5];\n\t            var g = H[6];\n\t            var h = H[7];\n\n\t            // Computation\n\t            for (var i = 0; i < 64; i++) {\n\t                if (i < 16) {\n\t                    W[i] = M[offset + i] | 0;\n\t                } else {\n\t                    var gamma0x = W[i - 15];\n\t                    var gamma0  = ((gamma0x << 25) | (gamma0x >>> 7))  ^\n\t                                  ((gamma0x << 14) | (gamma0x >>> 18)) ^\n\t                                   (gamma0x >>> 3);\n\n\t                    var gamma1x = W[i - 2];\n\t                    var gamma1  = ((gamma1x << 15) | (gamma1x >>> 17)) ^\n\t                                  ((gamma1x << 13) | (gamma1x >>> 19)) ^\n\t                                   (gamma1x >>> 10);\n\n\t                    W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16];\n\t                }\n\n\t                var ch  = (e & f) ^ (~e & g);\n\t                var maj = (a & b) ^ (a & c) ^ (b & c);\n\n\t                var sigma0 = ((a << 30) | (a >>> 2)) ^ ((a << 19) | (a >>> 13)) ^ ((a << 10) | (a >>> 22));\n\t                var sigma1 = ((e << 26) | (e >>> 6)) ^ ((e << 21) | (e >>> 11)) ^ ((e << 7)  | (e >>> 25));\n\n\t                var t1 = h + sigma1 + ch + K[i] + W[i];\n\t                var t2 = sigma0 + maj;\n\n\t                h = g;\n\t                g = f;\n\t                f = e;\n\t                e = (d + t1) | 0;\n\t                d = c;\n\t                c = b;\n\t                b = a;\n\t                a = (t1 + t2) | 0;\n\t            }\n\n\t            // Intermediate hash value\n\t            H[0] = (H[0] + a) | 0;\n\t            H[1] = (H[1] + b) | 0;\n\t            H[2] = (H[2] + c) | 0;\n\t            H[3] = (H[3] + d) | 0;\n\t            H[4] = (H[4] + e) | 0;\n\t            H[5] = (H[5] + f) | 0;\n\t            H[6] = (H[6] + g) | 0;\n\t            H[7] = (H[7] + h) | 0;\n\t        },\n\n\t        _doFinalize: function () {\n\t            // Shortcuts\n\t            var data = this._data;\n\t            var dataWords = data.words;\n\n\t            var nBitsTotal = this._nDataBytes * 8;\n\t            var nBitsLeft = data.sigBytes * 8;\n\n\t            // Add padding\n\t            dataWords[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);\n\t            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 14] = Math.floor(nBitsTotal / 0x100000000);\n\t            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 15] = nBitsTotal;\n\t            data.sigBytes = dataWords.length * 4;\n\n\t            // Hash final blocks\n\t            this._process();\n\n\t            // Return final computed hash\n\t            return this._hash;\n\t        },\n\n\t        clone: function () {\n\t            var clone = Hasher.clone.call(this);\n\t            clone._hash = this._hash.clone();\n\n\t            return clone;\n\t        }\n\t    });\n\n\t    /**\n\t     * Shortcut function to the hasher's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     *\n\t     * @return {WordArray} The hash.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hash = CryptoJS.SHA256('message');\n\t     *     var hash = CryptoJS.SHA256(wordArray);\n\t     */\n\t    C.SHA256 = Hasher._createHelper(SHA256);\n\n\t    /**\n\t     * Shortcut function to the HMAC's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     * @param {WordArray|string} key The secret key.\n\t     *\n\t     * @return {WordArray} The HMAC.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hmac = CryptoJS.HmacSHA256(message, key);\n\t     */\n\t    C.HmacSHA256 = Hasher._createHmacHelper(SHA256);\n\t}(Math));\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var WordArray = C_lib.WordArray;\n\t    var C_enc = C.enc;\n\n\t    /**\n\t     * UTF-16 BE encoding strategy.\n\t     */\n\t    var Utf16BE = C_enc.Utf16 = C_enc.Utf16BE = {\n\t        /**\n\t         * Converts a word array to a UTF-16 BE string.\n\t         *\n\t         * @param {WordArray} wordArray The word array.\n\t         *\n\t         * @return {string} The UTF-16 BE string.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var utf16String = CryptoJS.enc.Utf16.stringify(wordArray);\n\t         */\n\t        stringify: function (wordArray) {\n\t            // Shortcuts\n\t            var words = wordArray.words;\n\t            var sigBytes = wordArray.sigBytes;\n\n\t            // Convert\n\t            var utf16Chars = [];\n\t            for (var i = 0; i < sigBytes; i += 2) {\n\t                var codePoint = (words[i >>> 2] >>> (16 - (i % 4) * 8)) & 0xffff;\n\t                utf16Chars.push(String.fromCharCode(codePoint));\n\t            }\n\n\t            return utf16Chars.join('');\n\t        },\n\n\t        /**\n\t         * Converts a UTF-16 BE string to a word array.\n\t         *\n\t         * @param {string} utf16Str The UTF-16 BE string.\n\t         *\n\t         * @return {WordArray} The word array.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var wordArray = CryptoJS.enc.Utf16.parse(utf16String);\n\t         */\n\t        parse: function (utf16Str) {\n\t            // Shortcut\n\t            var utf16StrLength = utf16Str.length;\n\n\t            // Convert\n\t            var words = [];\n\t            for (var i = 0; i < utf16StrLength; i++) {\n\t                words[i >>> 1] |= utf16Str.charCodeAt(i) << (16 - (i % 2) * 16);\n\t            }\n\n\t            return WordArray.create(words, utf16StrLength * 2);\n\t        }\n\t    };\n\n\t    /**\n\t     * UTF-16 LE encoding strategy.\n\t     */\n\t    C_enc.Utf16LE = {\n\t        /**\n\t         * Converts a word array to a UTF-16 LE string.\n\t         *\n\t         * @param {WordArray} wordArray The word array.\n\t         *\n\t         * @return {string} The UTF-16 LE string.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var utf16Str = CryptoJS.enc.Utf16LE.stringify(wordArray);\n\t         */\n\t        stringify: function (wordArray) {\n\t            // Shortcuts\n\t            var words = wordArray.words;\n\t            var sigBytes = wordArray.sigBytes;\n\n\t            // Convert\n\t            var utf16Chars = [];\n\t            for (var i = 0; i < sigBytes; i += 2) {\n\t                var codePoint = swapEndian((words[i >>> 2] >>> (16 - (i % 4) * 8)) & 0xffff);\n\t                utf16Chars.push(String.fromCharCode(codePoint));\n\t            }\n\n\t            return utf16Chars.join('');\n\t        },\n\n\t        /**\n\t         * Converts a UTF-16 LE string to a word array.\n\t         *\n\t         * @param {string} utf16Str The UTF-16 LE string.\n\t         *\n\t         * @return {WordArray} The word array.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var wordArray = CryptoJS.enc.Utf16LE.parse(utf16Str);\n\t         */\n\t        parse: function (utf16Str) {\n\t            // Shortcut\n\t            var utf16StrLength = utf16Str.length;\n\n\t            // Convert\n\t            var words = [];\n\t            for (var i = 0; i < utf16StrLength; i++) {\n\t                words[i >>> 1] |= swapEndian(utf16Str.charCodeAt(i) << (16 - (i % 2) * 16));\n\t            }\n\n\t            return WordArray.create(words, utf16StrLength * 2);\n\t        }\n\t    };\n\n\t    function swapEndian(word) {\n\t        return ((word << 8) & 0xff00ff00) | ((word >>> 8) & 0x00ff00ff);\n\t    }\n\t}());\n\n\n\t(function () {\n\t    // Check if typed arrays are supported\n\t    if (typeof ArrayBuffer != 'function') {\n\t        return;\n\t    }\n\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var WordArray = C_lib.WordArray;\n\n\t    // Reference original init\n\t    var superInit = WordArray.init;\n\n\t    // Augment WordArray.init to handle typed arrays\n\t    var subInit = WordArray.init = function (typedArray) {\n\t        // Convert buffers to uint8\n\t        if (typedArray instanceof ArrayBuffer) {\n\t            typedArray = new Uint8Array(typedArray);\n\t        }\n\n\t        // Convert other array views to uint8\n\t        if (\n\t            typedArray instanceof Int8Array ||\n\t            (typeof Uint8ClampedArray !== \"undefined\" && typedArray instanceof Uint8ClampedArray) ||\n\t            typedArray instanceof Int16Array ||\n\t            typedArray instanceof Uint16Array ||\n\t            typedArray instanceof Int32Array ||\n\t            typedArray instanceof Uint32Array ||\n\t            typedArray instanceof Float32Array ||\n\t            typedArray instanceof Float64Array\n\t        ) {\n\t            typedArray = new Uint8Array(typedArray.buffer, typedArray.byteOffset, typedArray.byteLength);\n\t        }\n\n\t        // Handle Uint8Array\n\t        if (typedArray instanceof Uint8Array) {\n\t            // Shortcut\n\t            var typedArrayByteLength = typedArray.byteLength;\n\n\t            // Extract bytes\n\t            var words = [];\n\t            for (var i = 0; i < typedArrayByteLength; i++) {\n\t                words[i >>> 2] |= typedArray[i] << (24 - (i % 4) * 8);\n\t            }\n\n\t            // Initialize this word array\n\t            superInit.call(this, words, typedArrayByteLength);\n\t        } else {\n\t            // Else call normal init\n\t            superInit.apply(this, arguments);\n\t        }\n\t    };\n\n\t    subInit.prototype = WordArray;\n\t}());\n\n\n\t/** @preserve\n\t(c) 2012 by Cédric Mesnil. All rights reserved.\n\n\tRedistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:\n\n\t    - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.\n\t    - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.\n\n\tTHIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\t*/\n\n\t(function (Math) {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var WordArray = C_lib.WordArray;\n\t    var Hasher = C_lib.Hasher;\n\t    var C_algo = C.algo;\n\n\t    // Constants table\n\t    var _zl = WordArray.create([\n\t        0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,\n\t        7,  4, 13,  1, 10,  6, 15,  3, 12,  0,  9,  5,  2, 14, 11,  8,\n\t        3, 10, 14,  4,  9, 15,  8,  1,  2,  7,  0,  6, 13, 11,  5, 12,\n\t        1,  9, 11, 10,  0,  8, 12,  4, 13,  3,  7, 15, 14,  5,  6,  2,\n\t        4,  0,  5,  9,  7, 12,  2, 10, 14,  1,  3,  8, 11,  6, 15, 13]);\n\t    var _zr = WordArray.create([\n\t        5, 14,  7,  0,  9,  2, 11,  4, 13,  6, 15,  8,  1, 10,  3, 12,\n\t        6, 11,  3,  7,  0, 13,  5, 10, 14, 15,  8, 12,  4,  9,  1,  2,\n\t        15,  5,  1,  3,  7, 14,  6,  9, 11,  8, 12,  2, 10,  0,  4, 13,\n\t        8,  6,  4,  1,  3, 11, 15,  0,  5, 12,  2, 13,  9,  7, 10, 14,\n\t        12, 15, 10,  4,  1,  5,  8,  7,  6,  2, 13, 14,  0,  3,  9, 11]);\n\t    var _sl = WordArray.create([\n\t         11, 14, 15, 12,  5,  8,  7,  9, 11, 13, 14, 15,  6,  7,  9,  8,\n\t        7, 6,   8, 13, 11,  9,  7, 15,  7, 12, 15,  9, 11,  7, 13, 12,\n\t        11, 13,  6,  7, 14,  9, 13, 15, 14,  8, 13,  6,  5, 12,  7,  5,\n\t          11, 12, 14, 15, 14, 15,  9,  8,  9, 14,  5,  6,  8,  6,  5, 12,\n\t        9, 15,  5, 11,  6,  8, 13, 12,  5, 12, 13, 14, 11,  8,  5,  6 ]);\n\t    var _sr = WordArray.create([\n\t        8,  9,  9, 11, 13, 15, 15,  5,  7,  7,  8, 11, 14, 14, 12,  6,\n\t        9, 13, 15,  7, 12,  8,  9, 11,  7,  7, 12,  7,  6, 15, 13, 11,\n\t        9,  7, 15, 11,  8,  6,  6, 14, 12, 13,  5, 14, 13, 13,  7,  5,\n\t        15,  5,  8, 11, 14, 14,  6, 14,  6,  9, 12,  9, 12,  5, 15,  8,\n\t        8,  5, 12,  9, 12,  5, 14,  6,  8, 13,  6,  5, 15, 13, 11, 11 ]);\n\n\t    var _hl =  WordArray.create([ 0x00000000, 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xA953FD4E]);\n\t    var _hr =  WordArray.create([ 0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x7A6D76E9, 0x00000000]);\n\n\t    /**\n\t     * RIPEMD160 hash algorithm.\n\t     */\n\t    var RIPEMD160 = C_algo.RIPEMD160 = Hasher.extend({\n\t        _doReset: function () {\n\t            this._hash  = WordArray.create([0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0]);\n\t        },\n\n\t        _doProcessBlock: function (M, offset) {\n\n\t            // Swap endian\n\t            for (var i = 0; i < 16; i++) {\n\t                // Shortcuts\n\t                var offset_i = offset + i;\n\t                var M_offset_i = M[offset_i];\n\n\t                // Swap\n\t                M[offset_i] = (\n\t                    (((M_offset_i << 8)  | (M_offset_i >>> 24)) & 0x00ff00ff) |\n\t                    (((M_offset_i << 24) | (M_offset_i >>> 8))  & 0xff00ff00)\n\t                );\n\t            }\n\t            // Shortcut\n\t            var H  = this._hash.words;\n\t            var hl = _hl.words;\n\t            var hr = _hr.words;\n\t            var zl = _zl.words;\n\t            var zr = _zr.words;\n\t            var sl = _sl.words;\n\t            var sr = _sr.words;\n\n\t            // Working variables\n\t            var al, bl, cl, dl, el;\n\t            var ar, br, cr, dr, er;\n\n\t            ar = al = H[0];\n\t            br = bl = H[1];\n\t            cr = cl = H[2];\n\t            dr = dl = H[3];\n\t            er = el = H[4];\n\t            // Computation\n\t            var t;\n\t            for (var i = 0; i < 80; i += 1) {\n\t                t = (al +  M[offset+zl[i]])|0;\n\t                if (i<16){\n\t\t            t +=  f1(bl,cl,dl) + hl[0];\n\t                } else if (i<32) {\n\t\t            t +=  f2(bl,cl,dl) + hl[1];\n\t                } else if (i<48) {\n\t\t            t +=  f3(bl,cl,dl) + hl[2];\n\t                } else if (i<64) {\n\t\t            t +=  f4(bl,cl,dl) + hl[3];\n\t                } else {// if (i<80) {\n\t\t            t +=  f5(bl,cl,dl) + hl[4];\n\t                }\n\t                t = t|0;\n\t                t =  rotl(t,sl[i]);\n\t                t = (t+el)|0;\n\t                al = el;\n\t                el = dl;\n\t                dl = rotl(cl, 10);\n\t                cl = bl;\n\t                bl = t;\n\n\t                t = (ar + M[offset+zr[i]])|0;\n\t                if (i<16){\n\t\t            t +=  f5(br,cr,dr) + hr[0];\n\t                } else if (i<32) {\n\t\t            t +=  f4(br,cr,dr) + hr[1];\n\t                } else if (i<48) {\n\t\t            t +=  f3(br,cr,dr) + hr[2];\n\t                } else if (i<64) {\n\t\t            t +=  f2(br,cr,dr) + hr[3];\n\t                } else {// if (i<80) {\n\t\t            t +=  f1(br,cr,dr) + hr[4];\n\t                }\n\t                t = t|0;\n\t                t =  rotl(t,sr[i]) ;\n\t                t = (t+er)|0;\n\t                ar = er;\n\t                er = dr;\n\t                dr = rotl(cr, 10);\n\t                cr = br;\n\t                br = t;\n\t            }\n\t            // Intermediate hash value\n\t            t    = (H[1] + cl + dr)|0;\n\t            H[1] = (H[2] + dl + er)|0;\n\t            H[2] = (H[3] + el + ar)|0;\n\t            H[3] = (H[4] + al + br)|0;\n\t            H[4] = (H[0] + bl + cr)|0;\n\t            H[0] =  t;\n\t        },\n\n\t        _doFinalize: function () {\n\t            // Shortcuts\n\t            var data = this._data;\n\t            var dataWords = data.words;\n\n\t            var nBitsTotal = this._nDataBytes * 8;\n\t            var nBitsLeft = data.sigBytes * 8;\n\n\t            // Add padding\n\t            dataWords[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);\n\t            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 14] = (\n\t                (((nBitsTotal << 8)  | (nBitsTotal >>> 24)) & 0x00ff00ff) |\n\t                (((nBitsTotal << 24) | (nBitsTotal >>> 8))  & 0xff00ff00)\n\t            );\n\t            data.sigBytes = (dataWords.length + 1) * 4;\n\n\t            // Hash final blocks\n\t            this._process();\n\n\t            // Shortcuts\n\t            var hash = this._hash;\n\t            var H = hash.words;\n\n\t            // Swap endian\n\t            for (var i = 0; i < 5; i++) {\n\t                // Shortcut\n\t                var H_i = H[i];\n\n\t                // Swap\n\t                H[i] = (((H_i << 8)  | (H_i >>> 24)) & 0x00ff00ff) |\n\t                       (((H_i << 24) | (H_i >>> 8))  & 0xff00ff00);\n\t            }\n\n\t            // Return final computed hash\n\t            return hash;\n\t        },\n\n\t        clone: function () {\n\t            var clone = Hasher.clone.call(this);\n\t            clone._hash = this._hash.clone();\n\n\t            return clone;\n\t        }\n\t    });\n\n\n\t    function f1(x, y, z) {\n\t        return ((x) ^ (y) ^ (z));\n\n\t    }\n\n\t    function f2(x, y, z) {\n\t        return (((x)&(y)) | ((~x)&(z)));\n\t    }\n\n\t    function f3(x, y, z) {\n\t        return (((x) | (~(y))) ^ (z));\n\t    }\n\n\t    function f4(x, y, z) {\n\t        return (((x) & (z)) | ((y)&(~(z))));\n\t    }\n\n\t    function f5(x, y, z) {\n\t        return ((x) ^ ((y) |(~(z))));\n\n\t    }\n\n\t    function rotl(x,n) {\n\t        return (x<<n) | (x>>>(32-n));\n\t    }\n\n\n\t    /**\n\t     * Shortcut function to the hasher's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     *\n\t     * @return {WordArray} The hash.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hash = CryptoJS.RIPEMD160('message');\n\t     *     var hash = CryptoJS.RIPEMD160(wordArray);\n\t     */\n\t    C.RIPEMD160 = Hasher._createHelper(RIPEMD160);\n\n\t    /**\n\t     * Shortcut function to the HMAC's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     * @param {WordArray|string} key The secret key.\n\t     *\n\t     * @return {WordArray} The HMAC.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hmac = CryptoJS.HmacRIPEMD160(message, key);\n\t     */\n\t    C.HmacRIPEMD160 = Hasher._createHmacHelper(RIPEMD160);\n\t}(Math));\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var Base = C_lib.Base;\n\t    var C_enc = C.enc;\n\t    var Utf8 = C_enc.Utf8;\n\t    var C_algo = C.algo;\n\n\t    /**\n\t     * HMAC algorithm.\n\t     */\n\t    var HMAC = C_algo.HMAC = Base.extend({\n\t        /**\n\t         * Initializes a newly created HMAC.\n\t         *\n\t         * @param {Hasher} hasher The hash algorithm to use.\n\t         * @param {WordArray|string} key The secret key.\n\t         *\n\t         * @example\n\t         *\n\t         *     var hmacHasher = CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA256, key);\n\t         */\n\t        init: function (hasher, key) {\n\t            // Init hasher\n\t            hasher = this._hasher = new hasher.init();\n\n\t            // Convert string to WordArray, else assume WordArray already\n\t            if (typeof key == 'string') {\n\t                key = Utf8.parse(key);\n\t            }\n\n\t            // Shortcuts\n\t            var hasherBlockSize = hasher.blockSize;\n\t            var hasherBlockSizeBytes = hasherBlockSize * 4;\n\n\t            // Allow arbitrary length keys\n\t            if (key.sigBytes > hasherBlockSizeBytes) {\n\t                key = hasher.finalize(key);\n\t            }\n\n\t            // Clamp excess bits\n\t            key.clamp();\n\n\t            // Clone key for inner and outer pads\n\t            var oKey = this._oKey = key.clone();\n\t            var iKey = this._iKey = key.clone();\n\n\t            // Shortcuts\n\t            var oKeyWords = oKey.words;\n\t            var iKeyWords = iKey.words;\n\n\t            // XOR keys with pad constants\n\t            for (var i = 0; i < hasherBlockSize; i++) {\n\t                oKeyWords[i] ^= 0x5c5c5c5c;\n\t                iKeyWords[i] ^= 0x36363636;\n\t            }\n\t            oKey.sigBytes = iKey.sigBytes = hasherBlockSizeBytes;\n\n\t            // Set initial values\n\t            this.reset();\n\t        },\n\n\t        /**\n\t         * Resets this HMAC to its initial state.\n\t         *\n\t         * @example\n\t         *\n\t         *     hmacHasher.reset();\n\t         */\n\t        reset: function () {\n\t            // Shortcut\n\t            var hasher = this._hasher;\n\n\t            // Reset\n\t            hasher.reset();\n\t            hasher.update(this._iKey);\n\t        },\n\n\t        /**\n\t         * Updates this HMAC with a message.\n\t         *\n\t         * @param {WordArray|string} messageUpdate The message to append.\n\t         *\n\t         * @return {HMAC} This HMAC instance.\n\t         *\n\t         * @example\n\t         *\n\t         *     hmacHasher.update('message');\n\t         *     hmacHasher.update(wordArray);\n\t         */\n\t        update: function (messageUpdate) {\n\t            this._hasher.update(messageUpdate);\n\n\t            // Chainable\n\t            return this;\n\t        },\n\n\t        /**\n\t         * Finalizes the HMAC computation.\n\t         * Note that the finalize operation is effectively a destructive, read-once operation.\n\t         *\n\t         * @param {WordArray|string} messageUpdate (Optional) A final message update.\n\t         *\n\t         * @return {WordArray} The HMAC.\n\t         *\n\t         * @example\n\t         *\n\t         *     var hmac = hmacHasher.finalize();\n\t         *     var hmac = hmacHasher.finalize('message');\n\t         *     var hmac = hmacHasher.finalize(wordArray);\n\t         */\n\t        finalize: function (messageUpdate) {\n\t            // Shortcut\n\t            var hasher = this._hasher;\n\n\t            // Compute HMAC\n\t            var innerHash = hasher.finalize(messageUpdate);\n\t            hasher.reset();\n\t            var hmac = hasher.finalize(this._oKey.clone().concat(innerHash));\n\n\t            return hmac;\n\t        }\n\t    });\n\t}());\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var Base = C_lib.Base;\n\t    var WordArray = C_lib.WordArray;\n\t    var C_algo = C.algo;\n\t    var SHA1 = C_algo.SHA1;\n\t    var HMAC = C_algo.HMAC;\n\n\t    /**\n\t     * Password-Based Key Derivation Function 2 algorithm.\n\t     */\n\t    var PBKDF2 = C_algo.PBKDF2 = Base.extend({\n\t        /**\n\t         * Configuration options.\n\t         *\n\t         * @property {number} keySize The key size in words to generate. Default: 4 (128 bits)\n\t         * @property {Hasher} hasher The hasher to use. Default: SHA1\n\t         * @property {number} iterations The number of iterations to perform. Default: 1\n\t         */\n\t        cfg: Base.extend({\n\t            keySize: 128/32,\n\t            hasher: SHA1,\n\t            iterations: 1\n\t        }),\n\n\t        /**\n\t         * Initializes a newly created key derivation function.\n\t         *\n\t         * @param {Object} cfg (Optional) The configuration options to use for the derivation.\n\t         *\n\t         * @example\n\t         *\n\t         *     var kdf = CryptoJS.algo.PBKDF2.create();\n\t         *     var kdf = CryptoJS.algo.PBKDF2.create({ keySize: 8 });\n\t         *     var kdf = CryptoJS.algo.PBKDF2.create({ keySize: 8, iterations: 1000 });\n\t         */\n\t        init: function (cfg) {\n\t            this.cfg = this.cfg.extend(cfg);\n\t        },\n\n\t        /**\n\t         * Computes the Password-Based Key Derivation Function 2.\n\t         *\n\t         * @param {WordArray|string} password The password.\n\t         * @param {WordArray|string} salt A salt.\n\t         *\n\t         * @return {WordArray} The derived key.\n\t         *\n\t         * @example\n\t         *\n\t         *     var key = kdf.compute(password, salt);\n\t         */\n\t        compute: function (password, salt) {\n\t            // Shortcut\n\t            var cfg = this.cfg;\n\n\t            // Init HMAC\n\t            var hmac = HMAC.create(cfg.hasher, password);\n\n\t            // Initial values\n\t            var derivedKey = WordArray.create();\n\t            var blockIndex = WordArray.create([0x00000001]);\n\n\t            // Shortcuts\n\t            var derivedKeyWords = derivedKey.words;\n\t            var blockIndexWords = blockIndex.words;\n\t            var keySize = cfg.keySize;\n\t            var iterations = cfg.iterations;\n\n\t            // Generate key\n\t            while (derivedKeyWords.length < keySize) {\n\t                var block = hmac.update(salt).finalize(blockIndex);\n\t                hmac.reset();\n\n\t                // Shortcuts\n\t                var blockWords = block.words;\n\t                var blockWordsLength = blockWords.length;\n\n\t                // Iterations\n\t                var intermediate = block;\n\t                for (var i = 1; i < iterations; i++) {\n\t                    intermediate = hmac.finalize(intermediate);\n\t                    hmac.reset();\n\n\t                    // Shortcut\n\t                    var intermediateWords = intermediate.words;\n\n\t                    // XOR intermediate with block\n\t                    for (var j = 0; j < blockWordsLength; j++) {\n\t                        blockWords[j] ^= intermediateWords[j];\n\t                    }\n\t                }\n\n\t                derivedKey.concat(block);\n\t                blockIndexWords[0]++;\n\t            }\n\t            derivedKey.sigBytes = keySize * 4;\n\n\t            return derivedKey;\n\t        }\n\t    });\n\n\t    /**\n\t     * Computes the Password-Based Key Derivation Function 2.\n\t     *\n\t     * @param {WordArray|string} password The password.\n\t     * @param {WordArray|string} salt A salt.\n\t     * @param {Object} cfg (Optional) The configuration options to use for this computation.\n\t     *\n\t     * @return {WordArray} The derived key.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var key = CryptoJS.PBKDF2(password, salt);\n\t     *     var key = CryptoJS.PBKDF2(password, salt, { keySize: 8 });\n\t     *     var key = CryptoJS.PBKDF2(password, salt, { keySize: 8, iterations: 1000 });\n\t     */\n\t    C.PBKDF2 = function (password, salt, cfg) {\n\t        return PBKDF2.create(cfg).compute(password, salt);\n\t    };\n\t}());\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var Base = C_lib.Base;\n\t    var WordArray = C_lib.WordArray;\n\t    var C_algo = C.algo;\n\t    var MD5 = C_algo.MD5;\n\n\t    /**\n\t     * This key derivation function is meant to conform with EVP_BytesToKey.\n\t     * www.openssl.org/docs/crypto/EVP_BytesToKey.html\n\t     */\n\t    var EvpKDF = C_algo.EvpKDF = Base.extend({\n\t        /**\n\t         * Configuration options.\n\t         *\n\t         * @property {number} keySize The key size in words to generate. Default: 4 (128 bits)\n\t         * @property {Hasher} hasher The hash algorithm to use. Default: MD5\n\t         * @property {number} iterations The number of iterations to perform. Default: 1\n\t         */\n\t        cfg: Base.extend({\n\t            keySize: 128/32,\n\t            hasher: MD5,\n\t            iterations: 1\n\t        }),\n\n\t        /**\n\t         * Initializes a newly created key derivation function.\n\t         *\n\t         * @param {Object} cfg (Optional) The configuration options to use for the derivation.\n\t         *\n\t         * @example\n\t         *\n\t         *     var kdf = CryptoJS.algo.EvpKDF.create();\n\t         *     var kdf = CryptoJS.algo.EvpKDF.create({ keySize: 8 });\n\t         *     var kdf = CryptoJS.algo.EvpKDF.create({ keySize: 8, iterations: 1000 });\n\t         */\n\t        init: function (cfg) {\n\t            this.cfg = this.cfg.extend(cfg);\n\t        },\n\n\t        /**\n\t         * Derives a key from a password.\n\t         *\n\t         * @param {WordArray|string} password The password.\n\t         * @param {WordArray|string} salt A salt.\n\t         *\n\t         * @return {WordArray} The derived key.\n\t         *\n\t         * @example\n\t         *\n\t         *     var key = kdf.compute(password, salt);\n\t         */\n\t        compute: function (password, salt) {\n\t            var block;\n\n\t            // Shortcut\n\t            var cfg = this.cfg;\n\n\t            // Init hasher\n\t            var hasher = cfg.hasher.create();\n\n\t            // Initial values\n\t            var derivedKey = WordArray.create();\n\n\t            // Shortcuts\n\t            var derivedKeyWords = derivedKey.words;\n\t            var keySize = cfg.keySize;\n\t            var iterations = cfg.iterations;\n\n\t            // Generate key\n\t            while (derivedKeyWords.length < keySize) {\n\t                if (block) {\n\t                    hasher.update(block);\n\t                }\n\t                block = hasher.update(password).finalize(salt);\n\t                hasher.reset();\n\n\t                // Iterations\n\t                for (var i = 1; i < iterations; i++) {\n\t                    block = hasher.finalize(block);\n\t                    hasher.reset();\n\t                }\n\n\t                derivedKey.concat(block);\n\t            }\n\t            derivedKey.sigBytes = keySize * 4;\n\n\t            return derivedKey;\n\t        }\n\t    });\n\n\t    /**\n\t     * Derives a key from a password.\n\t     *\n\t     * @param {WordArray|string} password The password.\n\t     * @param {WordArray|string} salt A salt.\n\t     * @param {Object} cfg (Optional) The configuration options to use for this computation.\n\t     *\n\t     * @return {WordArray} The derived key.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var key = CryptoJS.EvpKDF(password, salt);\n\t     *     var key = CryptoJS.EvpKDF(password, salt, { keySize: 8 });\n\t     *     var key = CryptoJS.EvpKDF(password, salt, { keySize: 8, iterations: 1000 });\n\t     */\n\t    C.EvpKDF = function (password, salt, cfg) {\n\t        return EvpKDF.create(cfg).compute(password, salt);\n\t    };\n\t}());\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var WordArray = C_lib.WordArray;\n\t    var C_algo = C.algo;\n\t    var SHA256 = C_algo.SHA256;\n\n\t    /**\n\t     * SHA-224 hash algorithm.\n\t     */\n\t    var SHA224 = C_algo.SHA224 = SHA256.extend({\n\t        _doReset: function () {\n\t            this._hash = new WordArray.init([\n\t                0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,\n\t                0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4\n\t            ]);\n\t        },\n\n\t        _doFinalize: function () {\n\t            var hash = SHA256._doFinalize.call(this);\n\n\t            hash.sigBytes -= 4;\n\n\t            return hash;\n\t        }\n\t    });\n\n\t    /**\n\t     * Shortcut function to the hasher's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     *\n\t     * @return {WordArray} The hash.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hash = CryptoJS.SHA224('message');\n\t     *     var hash = CryptoJS.SHA224(wordArray);\n\t     */\n\t    C.SHA224 = SHA256._createHelper(SHA224);\n\n\t    /**\n\t     * Shortcut function to the HMAC's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     * @param {WordArray|string} key The secret key.\n\t     *\n\t     * @return {WordArray} The HMAC.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hmac = CryptoJS.HmacSHA224(message, key);\n\t     */\n\t    C.HmacSHA224 = SHA256._createHmacHelper(SHA224);\n\t}());\n\n\n\t(function (undefined) {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var Base = C_lib.Base;\n\t    var X32WordArray = C_lib.WordArray;\n\n\t    /**\n\t     * x64 namespace.\n\t     */\n\t    var C_x64 = C.x64 = {};\n\n\t    /**\n\t     * A 64-bit word.\n\t     */\n\t    var X64Word = C_x64.Word = Base.extend({\n\t        /**\n\t         * Initializes a newly created 64-bit word.\n\t         *\n\t         * @param {number} high The high 32 bits.\n\t         * @param {number} low The low 32 bits.\n\t         *\n\t         * @example\n\t         *\n\t         *     var x64Word = CryptoJS.x64.Word.create(0x00010203, 0x04050607);\n\t         */\n\t        init: function (high, low) {\n\t            this.high = high;\n\t            this.low = low;\n\t        }\n\n\t        /**\n\t         * Bitwise NOTs this word.\n\t         *\n\t         * @return {X64Word} A new x64-Word object after negating.\n\t         *\n\t         * @example\n\t         *\n\t         *     var negated = x64Word.not();\n\t         */\n\t        // not: function () {\n\t            // var high = ~this.high;\n\t            // var low = ~this.low;\n\n\t            // return X64Word.create(high, low);\n\t        // },\n\n\t        /**\n\t         * Bitwise ANDs this word with the passed word.\n\t         *\n\t         * @param {X64Word} word The x64-Word to AND with this word.\n\t         *\n\t         * @return {X64Word} A new x64-Word object after ANDing.\n\t         *\n\t         * @example\n\t         *\n\t         *     var anded = x64Word.and(anotherX64Word);\n\t         */\n\t        // and: function (word) {\n\t            // var high = this.high & word.high;\n\t            // var low = this.low & word.low;\n\n\t            // return X64Word.create(high, low);\n\t        // },\n\n\t        /**\n\t         * Bitwise ORs this word with the passed word.\n\t         *\n\t         * @param {X64Word} word The x64-Word to OR with this word.\n\t         *\n\t         * @return {X64Word} A new x64-Word object after ORing.\n\t         *\n\t         * @example\n\t         *\n\t         *     var ored = x64Word.or(anotherX64Word);\n\t         */\n\t        // or: function (word) {\n\t            // var high = this.high | word.high;\n\t            // var low = this.low | word.low;\n\n\t            // return X64Word.create(high, low);\n\t        // },\n\n\t        /**\n\t         * Bitwise XORs this word with the passed word.\n\t         *\n\t         * @param {X64Word} word The x64-Word to XOR with this word.\n\t         *\n\t         * @return {X64Word} A new x64-Word object after XORing.\n\t         *\n\t         * @example\n\t         *\n\t         *     var xored = x64Word.xor(anotherX64Word);\n\t         */\n\t        // xor: function (word) {\n\t            // var high = this.high ^ word.high;\n\t            // var low = this.low ^ word.low;\n\n\t            // return X64Word.create(high, low);\n\t        // },\n\n\t        /**\n\t         * Shifts this word n bits to the left.\n\t         *\n\t         * @param {number} n The number of bits to shift.\n\t         *\n\t         * @return {X64Word} A new x64-Word object after shifting.\n\t         *\n\t         * @example\n\t         *\n\t         *     var shifted = x64Word.shiftL(25);\n\t         */\n\t        // shiftL: function (n) {\n\t            // if (n < 32) {\n\t                // var high = (this.high << n) | (this.low >>> (32 - n));\n\t                // var low = this.low << n;\n\t            // } else {\n\t                // var high = this.low << (n - 32);\n\t                // var low = 0;\n\t            // }\n\n\t            // return X64Word.create(high, low);\n\t        // },\n\n\t        /**\n\t         * Shifts this word n bits to the right.\n\t         *\n\t         * @param {number} n The number of bits to shift.\n\t         *\n\t         * @return {X64Word} A new x64-Word object after shifting.\n\t         *\n\t         * @example\n\t         *\n\t         *     var shifted = x64Word.shiftR(7);\n\t         */\n\t        // shiftR: function (n) {\n\t            // if (n < 32) {\n\t                // var low = (this.low >>> n) | (this.high << (32 - n));\n\t                // var high = this.high >>> n;\n\t            // } else {\n\t                // var low = this.high >>> (n - 32);\n\t                // var high = 0;\n\t            // }\n\n\t            // return X64Word.create(high, low);\n\t        // },\n\n\t        /**\n\t         * Rotates this word n bits to the left.\n\t         *\n\t         * @param {number} n The number of bits to rotate.\n\t         *\n\t         * @return {X64Word} A new x64-Word object after rotating.\n\t         *\n\t         * @example\n\t         *\n\t         *     var rotated = x64Word.rotL(25);\n\t         */\n\t        // rotL: function (n) {\n\t            // return this.shiftL(n).or(this.shiftR(64 - n));\n\t        // },\n\n\t        /**\n\t         * Rotates this word n bits to the right.\n\t         *\n\t         * @param {number} n The number of bits to rotate.\n\t         *\n\t         * @return {X64Word} A new x64-Word object after rotating.\n\t         *\n\t         * @example\n\t         *\n\t         *     var rotated = x64Word.rotR(7);\n\t         */\n\t        // rotR: function (n) {\n\t            // return this.shiftR(n).or(this.shiftL(64 - n));\n\t        // },\n\n\t        /**\n\t         * Adds this word with the passed word.\n\t         *\n\t         * @param {X64Word} word The x64-Word to add with this word.\n\t         *\n\t         * @return {X64Word} A new x64-Word object after adding.\n\t         *\n\t         * @example\n\t         *\n\t         *     var added = x64Word.add(anotherX64Word);\n\t         */\n\t        // add: function (word) {\n\t            // var low = (this.low + word.low) | 0;\n\t            // var carry = (low >>> 0) < (this.low >>> 0) ? 1 : 0;\n\t            // var high = (this.high + word.high + carry) | 0;\n\n\t            // return X64Word.create(high, low);\n\t        // }\n\t    });\n\n\t    /**\n\t     * An array of 64-bit words.\n\t     *\n\t     * @property {Array} words The array of CryptoJS.x64.Word objects.\n\t     * @property {number} sigBytes The number of significant bytes in this word array.\n\t     */\n\t    var X64WordArray = C_x64.WordArray = Base.extend({\n\t        /**\n\t         * Initializes a newly created word array.\n\t         *\n\t         * @param {Array} words (Optional) An array of CryptoJS.x64.Word objects.\n\t         * @param {number} sigBytes (Optional) The number of significant bytes in the words.\n\t         *\n\t         * @example\n\t         *\n\t         *     var wordArray = CryptoJS.x64.WordArray.create();\n\t         *\n\t         *     var wordArray = CryptoJS.x64.WordArray.create([\n\t         *         CryptoJS.x64.Word.create(0x00010203, 0x04050607),\n\t         *         CryptoJS.x64.Word.create(0x18191a1b, 0x1c1d1e1f)\n\t         *     ]);\n\t         *\n\t         *     var wordArray = CryptoJS.x64.WordArray.create([\n\t         *         CryptoJS.x64.Word.create(0x00010203, 0x04050607),\n\t         *         CryptoJS.x64.Word.create(0x18191a1b, 0x1c1d1e1f)\n\t         *     ], 10);\n\t         */\n\t        init: function (words, sigBytes) {\n\t            words = this.words = words || [];\n\n\t            if (sigBytes != undefined) {\n\t                this.sigBytes = sigBytes;\n\t            } else {\n\t                this.sigBytes = words.length * 8;\n\t            }\n\t        },\n\n\t        /**\n\t         * Converts this 64-bit word array to a 32-bit word array.\n\t         *\n\t         * @return {CryptoJS.lib.WordArray} This word array's data as a 32-bit word array.\n\t         *\n\t         * @example\n\t         *\n\t         *     var x32WordArray = x64WordArray.toX32();\n\t         */\n\t        toX32: function () {\n\t            // Shortcuts\n\t            var x64Words = this.words;\n\t            var x64WordsLength = x64Words.length;\n\n\t            // Convert\n\t            var x32Words = [];\n\t            for (var i = 0; i < x64WordsLength; i++) {\n\t                var x64Word = x64Words[i];\n\t                x32Words.push(x64Word.high);\n\t                x32Words.push(x64Word.low);\n\t            }\n\n\t            return X32WordArray.create(x32Words, this.sigBytes);\n\t        },\n\n\t        /**\n\t         * Creates a copy of this word array.\n\t         *\n\t         * @return {X64WordArray} The clone.\n\t         *\n\t         * @example\n\t         *\n\t         *     var clone = x64WordArray.clone();\n\t         */\n\t        clone: function () {\n\t            var clone = Base.clone.call(this);\n\n\t            // Clone \"words\" array\n\t            var words = clone.words = this.words.slice(0);\n\n\t            // Clone each X64Word object\n\t            var wordsLength = words.length;\n\t            for (var i = 0; i < wordsLength; i++) {\n\t                words[i] = words[i].clone();\n\t            }\n\n\t            return clone;\n\t        }\n\t    });\n\t}());\n\n\n\t(function (Math) {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var WordArray = C_lib.WordArray;\n\t    var Hasher = C_lib.Hasher;\n\t    var C_x64 = C.x64;\n\t    var X64Word = C_x64.Word;\n\t    var C_algo = C.algo;\n\n\t    // Constants tables\n\t    var RHO_OFFSETS = [];\n\t    var PI_INDEXES  = [];\n\t    var ROUND_CONSTANTS = [];\n\n\t    // Compute Constants\n\t    (function () {\n\t        // Compute rho offset constants\n\t        var x = 1, y = 0;\n\t        for (var t = 0; t < 24; t++) {\n\t            RHO_OFFSETS[x + 5 * y] = ((t + 1) * (t + 2) / 2) % 64;\n\n\t            var newX = y % 5;\n\t            var newY = (2 * x + 3 * y) % 5;\n\t            x = newX;\n\t            y = newY;\n\t        }\n\n\t        // Compute pi index constants\n\t        for (var x = 0; x < 5; x++) {\n\t            for (var y = 0; y < 5; y++) {\n\t                PI_INDEXES[x + 5 * y] = y + ((2 * x + 3 * y) % 5) * 5;\n\t            }\n\t        }\n\n\t        // Compute round constants\n\t        var LFSR = 0x01;\n\t        for (var i = 0; i < 24; i++) {\n\t            var roundConstantMsw = 0;\n\t            var roundConstantLsw = 0;\n\n\t            for (var j = 0; j < 7; j++) {\n\t                if (LFSR & 0x01) {\n\t                    var bitPosition = (1 << j) - 1;\n\t                    if (bitPosition < 32) {\n\t                        roundConstantLsw ^= 1 << bitPosition;\n\t                    } else /* if (bitPosition >= 32) */ {\n\t                        roundConstantMsw ^= 1 << (bitPosition - 32);\n\t                    }\n\t                }\n\n\t                // Compute next LFSR\n\t                if (LFSR & 0x80) {\n\t                    // Primitive polynomial over GF(2): x^8 + x^6 + x^5 + x^4 + 1\n\t                    LFSR = (LFSR << 1) ^ 0x71;\n\t                } else {\n\t                    LFSR <<= 1;\n\t                }\n\t            }\n\n\t            ROUND_CONSTANTS[i] = X64Word.create(roundConstantMsw, roundConstantLsw);\n\t        }\n\t    }());\n\n\t    // Reusable objects for temporary values\n\t    var T = [];\n\t    (function () {\n\t        for (var i = 0; i < 25; i++) {\n\t            T[i] = X64Word.create();\n\t        }\n\t    }());\n\n\t    /**\n\t     * SHA-3 hash algorithm.\n\t     */\n\t    var SHA3 = C_algo.SHA3 = Hasher.extend({\n\t        /**\n\t         * Configuration options.\n\t         *\n\t         * @property {number} outputLength\n\t         *   The desired number of bits in the output hash.\n\t         *   Only values permitted are: 224, 256, 384, 512.\n\t         *   Default: 512\n\t         */\n\t        cfg: Hasher.cfg.extend({\n\t            outputLength: 512\n\t        }),\n\n\t        _doReset: function () {\n\t            var state = this._state = []\n\t            for (var i = 0; i < 25; i++) {\n\t                state[i] = new X64Word.init();\n\t            }\n\n\t            this.blockSize = (1600 - 2 * this.cfg.outputLength) / 32;\n\t        },\n\n\t        _doProcessBlock: function (M, offset) {\n\t            // Shortcuts\n\t            var state = this._state;\n\t            var nBlockSizeLanes = this.blockSize / 2;\n\n\t            // Absorb\n\t            for (var i = 0; i < nBlockSizeLanes; i++) {\n\t                // Shortcuts\n\t                var M2i  = M[offset + 2 * i];\n\t                var M2i1 = M[offset + 2 * i + 1];\n\n\t                // Swap endian\n\t                M2i = (\n\t                    (((M2i << 8)  | (M2i >>> 24)) & 0x00ff00ff) |\n\t                    (((M2i << 24) | (M2i >>> 8))  & 0xff00ff00)\n\t                );\n\t                M2i1 = (\n\t                    (((M2i1 << 8)  | (M2i1 >>> 24)) & 0x00ff00ff) |\n\t                    (((M2i1 << 24) | (M2i1 >>> 8))  & 0xff00ff00)\n\t                );\n\n\t                // Absorb message into state\n\t                var lane = state[i];\n\t                lane.high ^= M2i1;\n\t                lane.low  ^= M2i;\n\t            }\n\n\t            // Rounds\n\t            for (var round = 0; round < 24; round++) {\n\t                // Theta\n\t                for (var x = 0; x < 5; x++) {\n\t                    // Mix column lanes\n\t                    var tMsw = 0, tLsw = 0;\n\t                    for (var y = 0; y < 5; y++) {\n\t                        var lane = state[x + 5 * y];\n\t                        tMsw ^= lane.high;\n\t                        tLsw ^= lane.low;\n\t                    }\n\n\t                    // Temporary values\n\t                    var Tx = T[x];\n\t                    Tx.high = tMsw;\n\t                    Tx.low  = tLsw;\n\t                }\n\t                for (var x = 0; x < 5; x++) {\n\t                    // Shortcuts\n\t                    var Tx4 = T[(x + 4) % 5];\n\t                    var Tx1 = T[(x + 1) % 5];\n\t                    var Tx1Msw = Tx1.high;\n\t                    var Tx1Lsw = Tx1.low;\n\n\t                    // Mix surrounding columns\n\t                    var tMsw = Tx4.high ^ ((Tx1Msw << 1) | (Tx1Lsw >>> 31));\n\t                    var tLsw = Tx4.low  ^ ((Tx1Lsw << 1) | (Tx1Msw >>> 31));\n\t                    for (var y = 0; y < 5; y++) {\n\t                        var lane = state[x + 5 * y];\n\t                        lane.high ^= tMsw;\n\t                        lane.low  ^= tLsw;\n\t                    }\n\t                }\n\n\t                // Rho Pi\n\t                for (var laneIndex = 1; laneIndex < 25; laneIndex++) {\n\t                    var tMsw;\n\t                    var tLsw;\n\n\t                    // Shortcuts\n\t                    var lane = state[laneIndex];\n\t                    var laneMsw = lane.high;\n\t                    var laneLsw = lane.low;\n\t                    var rhoOffset = RHO_OFFSETS[laneIndex];\n\n\t                    // Rotate lanes\n\t                    if (rhoOffset < 32) {\n\t                        tMsw = (laneMsw << rhoOffset) | (laneLsw >>> (32 - rhoOffset));\n\t                        tLsw = (laneLsw << rhoOffset) | (laneMsw >>> (32 - rhoOffset));\n\t                    } else /* if (rhoOffset >= 32) */ {\n\t                        tMsw = (laneLsw << (rhoOffset - 32)) | (laneMsw >>> (64 - rhoOffset));\n\t                        tLsw = (laneMsw << (rhoOffset - 32)) | (laneLsw >>> (64 - rhoOffset));\n\t                    }\n\n\t                    // Transpose lanes\n\t                    var TPiLane = T[PI_INDEXES[laneIndex]];\n\t                    TPiLane.high = tMsw;\n\t                    TPiLane.low  = tLsw;\n\t                }\n\n\t                // Rho pi at x = y = 0\n\t                var T0 = T[0];\n\t                var state0 = state[0];\n\t                T0.high = state0.high;\n\t                T0.low  = state0.low;\n\n\t                // Chi\n\t                for (var x = 0; x < 5; x++) {\n\t                    for (var y = 0; y < 5; y++) {\n\t                        // Shortcuts\n\t                        var laneIndex = x + 5 * y;\n\t                        var lane = state[laneIndex];\n\t                        var TLane = T[laneIndex];\n\t                        var Tx1Lane = T[((x + 1) % 5) + 5 * y];\n\t                        var Tx2Lane = T[((x + 2) % 5) + 5 * y];\n\n\t                        // Mix rows\n\t                        lane.high = TLane.high ^ (~Tx1Lane.high & Tx2Lane.high);\n\t                        lane.low  = TLane.low  ^ (~Tx1Lane.low  & Tx2Lane.low);\n\t                    }\n\t                }\n\n\t                // Iota\n\t                var lane = state[0];\n\t                var roundConstant = ROUND_CONSTANTS[round];\n\t                lane.high ^= roundConstant.high;\n\t                lane.low  ^= roundConstant.low;\n\t            }\n\t        },\n\n\t        _doFinalize: function () {\n\t            // Shortcuts\n\t            var data = this._data;\n\t            var dataWords = data.words;\n\t            var nBitsTotal = this._nDataBytes * 8;\n\t            var nBitsLeft = data.sigBytes * 8;\n\t            var blockSizeBits = this.blockSize * 32;\n\n\t            // Add padding\n\t            dataWords[nBitsLeft >>> 5] |= 0x1 << (24 - nBitsLeft % 32);\n\t            dataWords[((Math.ceil((nBitsLeft + 1) / blockSizeBits) * blockSizeBits) >>> 5) - 1] |= 0x80;\n\t            data.sigBytes = dataWords.length * 4;\n\n\t            // Hash final blocks\n\t            this._process();\n\n\t            // Shortcuts\n\t            var state = this._state;\n\t            var outputLengthBytes = this.cfg.outputLength / 8;\n\t            var outputLengthLanes = outputLengthBytes / 8;\n\n\t            // Squeeze\n\t            var hashWords = [];\n\t            for (var i = 0; i < outputLengthLanes; i++) {\n\t                // Shortcuts\n\t                var lane = state[i];\n\t                var laneMsw = lane.high;\n\t                var laneLsw = lane.low;\n\n\t                // Swap endian\n\t                laneMsw = (\n\t                    (((laneMsw << 8)  | (laneMsw >>> 24)) & 0x00ff00ff) |\n\t                    (((laneMsw << 24) | (laneMsw >>> 8))  & 0xff00ff00)\n\t                );\n\t                laneLsw = (\n\t                    (((laneLsw << 8)  | (laneLsw >>> 24)) & 0x00ff00ff) |\n\t                    (((laneLsw << 24) | (laneLsw >>> 8))  & 0xff00ff00)\n\t                );\n\n\t                // Squeeze state to retrieve hash\n\t                hashWords.push(laneLsw);\n\t                hashWords.push(laneMsw);\n\t            }\n\n\t            // Return final computed hash\n\t            return new WordArray.init(hashWords, outputLengthBytes);\n\t        },\n\n\t        clone: function () {\n\t            var clone = Hasher.clone.call(this);\n\n\t            var state = clone._state = this._state.slice(0);\n\t            for (var i = 0; i < 25; i++) {\n\t                state[i] = state[i].clone();\n\t            }\n\n\t            return clone;\n\t        }\n\t    });\n\n\t    /**\n\t     * Shortcut function to the hasher's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     *\n\t     * @return {WordArray} The hash.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hash = CryptoJS.SHA3('message');\n\t     *     var hash = CryptoJS.SHA3(wordArray);\n\t     */\n\t    C.SHA3 = Hasher._createHelper(SHA3);\n\n\t    /**\n\t     * Shortcut function to the HMAC's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     * @param {WordArray|string} key The secret key.\n\t     *\n\t     * @return {WordArray} The HMAC.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hmac = CryptoJS.HmacSHA3(message, key);\n\t     */\n\t    C.HmacSHA3 = Hasher._createHmacHelper(SHA3);\n\t}(Math));\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var Hasher = C_lib.Hasher;\n\t    var C_x64 = C.x64;\n\t    var X64Word = C_x64.Word;\n\t    var X64WordArray = C_x64.WordArray;\n\t    var C_algo = C.algo;\n\n\t    function X64Word_create() {\n\t        return X64Word.create.apply(X64Word, arguments);\n\t    }\n\n\t    // Constants\n\t    var K = [\n\t        X64Word_create(0x428a2f98, 0xd728ae22), X64Word_create(0x71374491, 0x23ef65cd),\n\t        X64Word_create(0xb5c0fbcf, 0xec4d3b2f), X64Word_create(0xe9b5dba5, 0x8189dbbc),\n\t        X64Word_create(0x3956c25b, 0xf348b538), X64Word_create(0x59f111f1, 0xb605d019),\n\t        X64Word_create(0x923f82a4, 0xaf194f9b), X64Word_create(0xab1c5ed5, 0xda6d8118),\n\t        X64Word_create(0xd807aa98, 0xa3030242), X64Word_create(0x12835b01, 0x45706fbe),\n\t        X64Word_create(0x243185be, 0x4ee4b28c), X64Word_create(0x550c7dc3, 0xd5ffb4e2),\n\t        X64Word_create(0x72be5d74, 0xf27b896f), X64Word_create(0x80deb1fe, 0x3b1696b1),\n\t        X64Word_create(0x9bdc06a7, 0x25c71235), X64Word_create(0xc19bf174, 0xcf692694),\n\t        X64Word_create(0xe49b69c1, 0x9ef14ad2), X64Word_create(0xefbe4786, 0x384f25e3),\n\t        X64Word_create(0x0fc19dc6, 0x8b8cd5b5), X64Word_create(0x240ca1cc, 0x77ac9c65),\n\t        X64Word_create(0x2de92c6f, 0x592b0275), X64Word_create(0x4a7484aa, 0x6ea6e483),\n\t        X64Word_create(0x5cb0a9dc, 0xbd41fbd4), X64Word_create(0x76f988da, 0x831153b5),\n\t        X64Word_create(0x983e5152, 0xee66dfab), X64Word_create(0xa831c66d, 0x2db43210),\n\t        X64Word_create(0xb00327c8, 0x98fb213f), X64Word_create(0xbf597fc7, 0xbeef0ee4),\n\t        X64Word_create(0xc6e00bf3, 0x3da88fc2), X64Word_create(0xd5a79147, 0x930aa725),\n\t        X64Word_create(0x06ca6351, 0xe003826f), X64Word_create(0x14292967, 0x0a0e6e70),\n\t        X64Word_create(0x27b70a85, 0x46d22ffc), X64Word_create(0x2e1b2138, 0x5c26c926),\n\t        X64Word_create(0x4d2c6dfc, 0x5ac42aed), X64Word_create(0x53380d13, 0x9d95b3df),\n\t        X64Word_create(0x650a7354, 0x8baf63de), X64Word_create(0x766a0abb, 0x3c77b2a8),\n\t        X64Word_create(0x81c2c92e, 0x47edaee6), X64Word_create(0x92722c85, 0x1482353b),\n\t        X64Word_create(0xa2bfe8a1, 0x4cf10364), X64Word_create(0xa81a664b, 0xbc423001),\n\t        X64Word_create(0xc24b8b70, 0xd0f89791), X64Word_create(0xc76c51a3, 0x0654be30),\n\t        X64Word_create(0xd192e819, 0xd6ef5218), X64Word_create(0xd6990624, 0x5565a910),\n\t        X64Word_create(0xf40e3585, 0x5771202a), X64Word_create(0x106aa070, 0x32bbd1b8),\n\t        X64Word_create(0x19a4c116, 0xb8d2d0c8), X64Word_create(0x1e376c08, 0x5141ab53),\n\t        X64Word_create(0x2748774c, 0xdf8eeb99), X64Word_create(0x34b0bcb5, 0xe19b48a8),\n\t        X64Word_create(0x391c0cb3, 0xc5c95a63), X64Word_create(0x4ed8aa4a, 0xe3418acb),\n\t        X64Word_create(0x5b9cca4f, 0x7763e373), X64Word_create(0x682e6ff3, 0xd6b2b8a3),\n\t        X64Word_create(0x748f82ee, 0x5defb2fc), X64Word_create(0x78a5636f, 0x43172f60),\n\t        X64Word_create(0x84c87814, 0xa1f0ab72), X64Word_create(0x8cc70208, 0x1a6439ec),\n\t        X64Word_create(0x90befffa, 0x23631e28), X64Word_create(0xa4506ceb, 0xde82bde9),\n\t        X64Word_create(0xbef9a3f7, 0xb2c67915), X64Word_create(0xc67178f2, 0xe372532b),\n\t        X64Word_create(0xca273ece, 0xea26619c), X64Word_create(0xd186b8c7, 0x21c0c207),\n\t        X64Word_create(0xeada7dd6, 0xcde0eb1e), X64Word_create(0xf57d4f7f, 0xee6ed178),\n\t        X64Word_create(0x06f067aa, 0x72176fba), X64Word_create(0x0a637dc5, 0xa2c898a6),\n\t        X64Word_create(0x113f9804, 0xbef90dae), X64Word_create(0x1b710b35, 0x131c471b),\n\t        X64Word_create(0x28db77f5, 0x23047d84), X64Word_create(0x32caab7b, 0x40c72493),\n\t        X64Word_create(0x3c9ebe0a, 0x15c9bebc), X64Word_create(0x431d67c4, 0x9c100d4c),\n\t        X64Word_create(0x4cc5d4be, 0xcb3e42b6), X64Word_create(0x597f299c, 0xfc657e2a),\n\t        X64Word_create(0x5fcb6fab, 0x3ad6faec), X64Word_create(0x6c44198c, 0x4a475817)\n\t    ];\n\n\t    // Reusable objects\n\t    var W = [];\n\t    (function () {\n\t        for (var i = 0; i < 80; i++) {\n\t            W[i] = X64Word_create();\n\t        }\n\t    }());\n\n\t    /**\n\t     * SHA-512 hash algorithm.\n\t     */\n\t    var SHA512 = C_algo.SHA512 = Hasher.extend({\n\t        _doReset: function () {\n\t            this._hash = new X64WordArray.init([\n\t                new X64Word.init(0x6a09e667, 0xf3bcc908), new X64Word.init(0xbb67ae85, 0x84caa73b),\n\t                new X64Word.init(0x3c6ef372, 0xfe94f82b), new X64Word.init(0xa54ff53a, 0x5f1d36f1),\n\t                new X64Word.init(0x510e527f, 0xade682d1), new X64Word.init(0x9b05688c, 0x2b3e6c1f),\n\t                new X64Word.init(0x1f83d9ab, 0xfb41bd6b), new X64Word.init(0x5be0cd19, 0x137e2179)\n\t            ]);\n\t        },\n\n\t        _doProcessBlock: function (M, offset) {\n\t            // Shortcuts\n\t            var H = this._hash.words;\n\n\t            var H0 = H[0];\n\t            var H1 = H[1];\n\t            var H2 = H[2];\n\t            var H3 = H[3];\n\t            var H4 = H[4];\n\t            var H5 = H[5];\n\t            var H6 = H[6];\n\t            var H7 = H[7];\n\n\t            var H0h = H0.high;\n\t            var H0l = H0.low;\n\t            var H1h = H1.high;\n\t            var H1l = H1.low;\n\t            var H2h = H2.high;\n\t            var H2l = H2.low;\n\t            var H3h = H3.high;\n\t            var H3l = H3.low;\n\t            var H4h = H4.high;\n\t            var H4l = H4.low;\n\t            var H5h = H5.high;\n\t            var H5l = H5.low;\n\t            var H6h = H6.high;\n\t            var H6l = H6.low;\n\t            var H7h = H7.high;\n\t            var H7l = H7.low;\n\n\t            // Working variables\n\t            var ah = H0h;\n\t            var al = H0l;\n\t            var bh = H1h;\n\t            var bl = H1l;\n\t            var ch = H2h;\n\t            var cl = H2l;\n\t            var dh = H3h;\n\t            var dl = H3l;\n\t            var eh = H4h;\n\t            var el = H4l;\n\t            var fh = H5h;\n\t            var fl = H5l;\n\t            var gh = H6h;\n\t            var gl = H6l;\n\t            var hh = H7h;\n\t            var hl = H7l;\n\n\t            // Rounds\n\t            for (var i = 0; i < 80; i++) {\n\t                var Wil;\n\t                var Wih;\n\n\t                // Shortcut\n\t                var Wi = W[i];\n\n\t                // Extend message\n\t                if (i < 16) {\n\t                    Wih = Wi.high = M[offset + i * 2]     | 0;\n\t                    Wil = Wi.low  = M[offset + i * 2 + 1] | 0;\n\t                } else {\n\t                    // Gamma0\n\t                    var gamma0x  = W[i - 15];\n\t                    var gamma0xh = gamma0x.high;\n\t                    var gamma0xl = gamma0x.low;\n\t                    var gamma0h  = ((gamma0xh >>> 1) | (gamma0xl << 31)) ^ ((gamma0xh >>> 8) | (gamma0xl << 24)) ^ (gamma0xh >>> 7);\n\t                    var gamma0l  = ((gamma0xl >>> 1) | (gamma0xh << 31)) ^ ((gamma0xl >>> 8) | (gamma0xh << 24)) ^ ((gamma0xl >>> 7) | (gamma0xh << 25));\n\n\t                    // Gamma1\n\t                    var gamma1x  = W[i - 2];\n\t                    var gamma1xh = gamma1x.high;\n\t                    var gamma1xl = gamma1x.low;\n\t                    var gamma1h  = ((gamma1xh >>> 19) | (gamma1xl << 13)) ^ ((gamma1xh << 3) | (gamma1xl >>> 29)) ^ (gamma1xh >>> 6);\n\t                    var gamma1l  = ((gamma1xl >>> 19) | (gamma1xh << 13)) ^ ((gamma1xl << 3) | (gamma1xh >>> 29)) ^ ((gamma1xl >>> 6) | (gamma1xh << 26));\n\n\t                    // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]\n\t                    var Wi7  = W[i - 7];\n\t                    var Wi7h = Wi7.high;\n\t                    var Wi7l = Wi7.low;\n\n\t                    var Wi16  = W[i - 16];\n\t                    var Wi16h = Wi16.high;\n\t                    var Wi16l = Wi16.low;\n\n\t                    Wil = gamma0l + Wi7l;\n\t                    Wih = gamma0h + Wi7h + ((Wil >>> 0) < (gamma0l >>> 0) ? 1 : 0);\n\t                    Wil = Wil + gamma1l;\n\t                    Wih = Wih + gamma1h + ((Wil >>> 0) < (gamma1l >>> 0) ? 1 : 0);\n\t                    Wil = Wil + Wi16l;\n\t                    Wih = Wih + Wi16h + ((Wil >>> 0) < (Wi16l >>> 0) ? 1 : 0);\n\n\t                    Wi.high = Wih;\n\t                    Wi.low  = Wil;\n\t                }\n\n\t                var chh  = (eh & fh) ^ (~eh & gh);\n\t                var chl  = (el & fl) ^ (~el & gl);\n\t                var majh = (ah & bh) ^ (ah & ch) ^ (bh & ch);\n\t                var majl = (al & bl) ^ (al & cl) ^ (bl & cl);\n\n\t                var sigma0h = ((ah >>> 28) | (al << 4))  ^ ((ah << 30)  | (al >>> 2)) ^ ((ah << 25) | (al >>> 7));\n\t                var sigma0l = ((al >>> 28) | (ah << 4))  ^ ((al << 30)  | (ah >>> 2)) ^ ((al << 25) | (ah >>> 7));\n\t                var sigma1h = ((eh >>> 14) | (el << 18)) ^ ((eh >>> 18) | (el << 14)) ^ ((eh << 23) | (el >>> 9));\n\t                var sigma1l = ((el >>> 14) | (eh << 18)) ^ ((el >>> 18) | (eh << 14)) ^ ((el << 23) | (eh >>> 9));\n\n\t                // t1 = h + sigma1 + ch + K[i] + W[i]\n\t                var Ki  = K[i];\n\t                var Kih = Ki.high;\n\t                var Kil = Ki.low;\n\n\t                var t1l = hl + sigma1l;\n\t                var t1h = hh + sigma1h + ((t1l >>> 0) < (hl >>> 0) ? 1 : 0);\n\t                var t1l = t1l + chl;\n\t                var t1h = t1h + chh + ((t1l >>> 0) < (chl >>> 0) ? 1 : 0);\n\t                var t1l = t1l + Kil;\n\t                var t1h = t1h + Kih + ((t1l >>> 0) < (Kil >>> 0) ? 1 : 0);\n\t                var t1l = t1l + Wil;\n\t                var t1h = t1h + Wih + ((t1l >>> 0) < (Wil >>> 0) ? 1 : 0);\n\n\t                // t2 = sigma0 + maj\n\t                var t2l = sigma0l + majl;\n\t                var t2h = sigma0h + majh + ((t2l >>> 0) < (sigma0l >>> 0) ? 1 : 0);\n\n\t                // Update working variables\n\t                hh = gh;\n\t                hl = gl;\n\t                gh = fh;\n\t                gl = fl;\n\t                fh = eh;\n\t                fl = el;\n\t                el = (dl + t1l) | 0;\n\t                eh = (dh + t1h + ((el >>> 0) < (dl >>> 0) ? 1 : 0)) | 0;\n\t                dh = ch;\n\t                dl = cl;\n\t                ch = bh;\n\t                cl = bl;\n\t                bh = ah;\n\t                bl = al;\n\t                al = (t1l + t2l) | 0;\n\t                ah = (t1h + t2h + ((al >>> 0) < (t1l >>> 0) ? 1 : 0)) | 0;\n\t            }\n\n\t            // Intermediate hash value\n\t            H0l = H0.low  = (H0l + al);\n\t            H0.high = (H0h + ah + ((H0l >>> 0) < (al >>> 0) ? 1 : 0));\n\t            H1l = H1.low  = (H1l + bl);\n\t            H1.high = (H1h + bh + ((H1l >>> 0) < (bl >>> 0) ? 1 : 0));\n\t            H2l = H2.low  = (H2l + cl);\n\t            H2.high = (H2h + ch + ((H2l >>> 0) < (cl >>> 0) ? 1 : 0));\n\t            H3l = H3.low  = (H3l + dl);\n\t            H3.high = (H3h + dh + ((H3l >>> 0) < (dl >>> 0) ? 1 : 0));\n\t            H4l = H4.low  = (H4l + el);\n\t            H4.high = (H4h + eh + ((H4l >>> 0) < (el >>> 0) ? 1 : 0));\n\t            H5l = H5.low  = (H5l + fl);\n\t            H5.high = (H5h + fh + ((H5l >>> 0) < (fl >>> 0) ? 1 : 0));\n\t            H6l = H6.low  = (H6l + gl);\n\t            H6.high = (H6h + gh + ((H6l >>> 0) < (gl >>> 0) ? 1 : 0));\n\t            H7l = H7.low  = (H7l + hl);\n\t            H7.high = (H7h + hh + ((H7l >>> 0) < (hl >>> 0) ? 1 : 0));\n\t        },\n\n\t        _doFinalize: function () {\n\t            // Shortcuts\n\t            var data = this._data;\n\t            var dataWords = data.words;\n\n\t            var nBitsTotal = this._nDataBytes * 8;\n\t            var nBitsLeft = data.sigBytes * 8;\n\n\t            // Add padding\n\t            dataWords[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);\n\t            dataWords[(((nBitsLeft + 128) >>> 10) << 5) + 30] = Math.floor(nBitsTotal / 0x100000000);\n\t            dataWords[(((nBitsLeft + 128) >>> 10) << 5) + 31] = nBitsTotal;\n\t            data.sigBytes = dataWords.length * 4;\n\n\t            // Hash final blocks\n\t            this._process();\n\n\t            // Convert hash to 32-bit word array before returning\n\t            var hash = this._hash.toX32();\n\n\t            // Return final computed hash\n\t            return hash;\n\t        },\n\n\t        clone: function () {\n\t            var clone = Hasher.clone.call(this);\n\t            clone._hash = this._hash.clone();\n\n\t            return clone;\n\t        },\n\n\t        blockSize: 1024/32\n\t    });\n\n\t    /**\n\t     * Shortcut function to the hasher's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     *\n\t     * @return {WordArray} The hash.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hash = CryptoJS.SHA512('message');\n\t     *     var hash = CryptoJS.SHA512(wordArray);\n\t     */\n\t    C.SHA512 = Hasher._createHelper(SHA512);\n\n\t    /**\n\t     * Shortcut function to the HMAC's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     * @param {WordArray|string} key The secret key.\n\t     *\n\t     * @return {WordArray} The HMAC.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hmac = CryptoJS.HmacSHA512(message, key);\n\t     */\n\t    C.HmacSHA512 = Hasher._createHmacHelper(SHA512);\n\t}());\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_x64 = C.x64;\n\t    var X64Word = C_x64.Word;\n\t    var X64WordArray = C_x64.WordArray;\n\t    var C_algo = C.algo;\n\t    var SHA512 = C_algo.SHA512;\n\n\t    /**\n\t     * SHA-384 hash algorithm.\n\t     */\n\t    var SHA384 = C_algo.SHA384 = SHA512.extend({\n\t        _doReset: function () {\n\t            this._hash = new X64WordArray.init([\n\t                new X64Word.init(0xcbbb9d5d, 0xc1059ed8), new X64Word.init(0x629a292a, 0x367cd507),\n\t                new X64Word.init(0x9159015a, 0x3070dd17), new X64Word.init(0x152fecd8, 0xf70e5939),\n\t                new X64Word.init(0x67332667, 0xffc00b31), new X64Word.init(0x8eb44a87, 0x68581511),\n\t                new X64Word.init(0xdb0c2e0d, 0x64f98fa7), new X64Word.init(0x47b5481d, 0xbefa4fa4)\n\t            ]);\n\t        },\n\n\t        _doFinalize: function () {\n\t            var hash = SHA512._doFinalize.call(this);\n\n\t            hash.sigBytes -= 16;\n\n\t            return hash;\n\t        }\n\t    });\n\n\t    /**\n\t     * Shortcut function to the hasher's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     *\n\t     * @return {WordArray} The hash.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hash = CryptoJS.SHA384('message');\n\t     *     var hash = CryptoJS.SHA384(wordArray);\n\t     */\n\t    C.SHA384 = SHA512._createHelper(SHA384);\n\n\t    /**\n\t     * Shortcut function to the HMAC's object interface.\n\t     *\n\t     * @param {WordArray|string} message The message to hash.\n\t     * @param {WordArray|string} key The secret key.\n\t     *\n\t     * @return {WordArray} The HMAC.\n\t     *\n\t     * @static\n\t     *\n\t     * @example\n\t     *\n\t     *     var hmac = CryptoJS.HmacSHA384(message, key);\n\t     */\n\t    C.HmacSHA384 = SHA512._createHmacHelper(SHA384);\n\t}());\n\n\n\t/**\n\t * Cipher core components.\n\t */\n\tCryptoJS.lib.Cipher || (function (undefined) {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var Base = C_lib.Base;\n\t    var WordArray = C_lib.WordArray;\n\t    var BufferedBlockAlgorithm = C_lib.BufferedBlockAlgorithm;\n\t    var C_enc = C.enc;\n\t    var Utf8 = C_enc.Utf8;\n\t    var Base64 = C_enc.Base64;\n\t    var C_algo = C.algo;\n\t    var EvpKDF = C_algo.EvpKDF;\n\n\t    /**\n\t     * Abstract base cipher template.\n\t     *\n\t     * @property {number} keySize This cipher's key size. Default: 4 (128 bits)\n\t     * @property {number} ivSize This cipher's IV size. Default: 4 (128 bits)\n\t     * @property {number} _ENC_XFORM_MODE A constant representing encryption mode.\n\t     * @property {number} _DEC_XFORM_MODE A constant representing decryption mode.\n\t     */\n\t    var Cipher = C_lib.Cipher = BufferedBlockAlgorithm.extend({\n\t        /**\n\t         * Configuration options.\n\t         *\n\t         * @property {WordArray} iv The IV to use for this operation.\n\t         */\n\t        cfg: Base.extend(),\n\n\t        /**\n\t         * Creates this cipher in encryption mode.\n\t         *\n\t         * @param {WordArray} key The key.\n\t         * @param {Object} cfg (Optional) The configuration options to use for this operation.\n\t         *\n\t         * @return {Cipher} A cipher instance.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var cipher = CryptoJS.algo.AES.createEncryptor(keyWordArray, { iv: ivWordArray });\n\t         */\n\t        createEncryptor: function (key, cfg) {\n\t            return this.create(this._ENC_XFORM_MODE, key, cfg);\n\t        },\n\n\t        /**\n\t         * Creates this cipher in decryption mode.\n\t         *\n\t         * @param {WordArray} key The key.\n\t         * @param {Object} cfg (Optional) The configuration options to use for this operation.\n\t         *\n\t         * @return {Cipher} A cipher instance.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var cipher = CryptoJS.algo.AES.createDecryptor(keyWordArray, { iv: ivWordArray });\n\t         */\n\t        createDecryptor: function (key, cfg) {\n\t            return this.create(this._DEC_XFORM_MODE, key, cfg);\n\t        },\n\n\t        /**\n\t         * Initializes a newly created cipher.\n\t         *\n\t         * @param {number} xformMode Either the encryption or decryption transormation mode constant.\n\t         * @param {WordArray} key The key.\n\t         * @param {Object} cfg (Optional) The configuration options to use for this operation.\n\t         *\n\t         * @example\n\t         *\n\t         *     var cipher = CryptoJS.algo.AES.create(CryptoJS.algo.AES._ENC_XFORM_MODE, keyWordArray, { iv: ivWordArray });\n\t         */\n\t        init: function (xformMode, key, cfg) {\n\t            // Apply config defaults\n\t            this.cfg = this.cfg.extend(cfg);\n\n\t            // Store transform mode and key\n\t            this._xformMode = xformMode;\n\t            this._key = key;\n\n\t            // Set initial values\n\t            this.reset();\n\t        },\n\n\t        /**\n\t         * Resets this cipher to its initial state.\n\t         *\n\t         * @example\n\t         *\n\t         *     cipher.reset();\n\t         */\n\t        reset: function () {\n\t            // Reset data buffer\n\t            BufferedBlockAlgorithm.reset.call(this);\n\n\t            // Perform concrete-cipher logic\n\t            this._doReset();\n\t        },\n\n\t        /**\n\t         * Adds data to be encrypted or decrypted.\n\t         *\n\t         * @param {WordArray|string} dataUpdate The data to encrypt or decrypt.\n\t         *\n\t         * @return {WordArray} The data after processing.\n\t         *\n\t         * @example\n\t         *\n\t         *     var encrypted = cipher.process('data');\n\t         *     var encrypted = cipher.process(wordArray);\n\t         */\n\t        process: function (dataUpdate) {\n\t            // Append\n\t            this._append(dataUpdate);\n\n\t            // Process available blocks\n\t            return this._process();\n\t        },\n\n\t        /**\n\t         * Finalizes the encryption or decryption process.\n\t         * Note that the finalize operation is effectively a destructive, read-once operation.\n\t         *\n\t         * @param {WordArray|string} dataUpdate The final data to encrypt or decrypt.\n\t         *\n\t         * @return {WordArray} The data after final processing.\n\t         *\n\t         * @example\n\t         *\n\t         *     var encrypted = cipher.finalize();\n\t         *     var encrypted = cipher.finalize('data');\n\t         *     var encrypted = cipher.finalize(wordArray);\n\t         */\n\t        finalize: function (dataUpdate) {\n\t            // Final data update\n\t            if (dataUpdate) {\n\t                this._append(dataUpdate);\n\t            }\n\n\t            // Perform concrete-cipher logic\n\t            var finalProcessedData = this._doFinalize();\n\n\t            return finalProcessedData;\n\t        },\n\n\t        keySize: 128/32,\n\n\t        ivSize: 128/32,\n\n\t        _ENC_XFORM_MODE: 1,\n\n\t        _DEC_XFORM_MODE: 2,\n\n\t        /**\n\t         * Creates shortcut functions to a cipher's object interface.\n\t         *\n\t         * @param {Cipher} cipher The cipher to create a helper for.\n\t         *\n\t         * @return {Object} An object with encrypt and decrypt shortcut functions.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var AES = CryptoJS.lib.Cipher._createHelper(CryptoJS.algo.AES);\n\t         */\n\t        _createHelper: (function () {\n\t            function selectCipherStrategy(key) {\n\t                if (typeof key == 'string') {\n\t                    return PasswordBasedCipher;\n\t                } else {\n\t                    return SerializableCipher;\n\t                }\n\t            }\n\n\t            return function (cipher) {\n\t                return {\n\t                    encrypt: function (message, key, cfg) {\n\t                        return selectCipherStrategy(key).encrypt(cipher, message, key, cfg);\n\t                    },\n\n\t                    decrypt: function (ciphertext, key, cfg) {\n\t                        return selectCipherStrategy(key).decrypt(cipher, ciphertext, key, cfg);\n\t                    }\n\t                };\n\t            };\n\t        }())\n\t    });\n\n\t    /**\n\t     * Abstract base stream cipher template.\n\t     *\n\t     * @property {number} blockSize The number of 32-bit words this cipher operates on. Default: 1 (32 bits)\n\t     */\n\t    var StreamCipher = C_lib.StreamCipher = Cipher.extend({\n\t        _doFinalize: function () {\n\t            // Process partial blocks\n\t            var finalProcessedBlocks = this._process(!!'flush');\n\n\t            return finalProcessedBlocks;\n\t        },\n\n\t        blockSize: 1\n\t    });\n\n\t    /**\n\t     * Mode namespace.\n\t     */\n\t    var C_mode = C.mode = {};\n\n\t    /**\n\t     * Abstract base block cipher mode template.\n\t     */\n\t    var BlockCipherMode = C_lib.BlockCipherMode = Base.extend({\n\t        /**\n\t         * Creates this mode for encryption.\n\t         *\n\t         * @param {Cipher} cipher A block cipher instance.\n\t         * @param {Array} iv The IV words.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var mode = CryptoJS.mode.CBC.createEncryptor(cipher, iv.words);\n\t         */\n\t        createEncryptor: function (cipher, iv) {\n\t            return this.Encryptor.create(cipher, iv);\n\t        },\n\n\t        /**\n\t         * Creates this mode for decryption.\n\t         *\n\t         * @param {Cipher} cipher A block cipher instance.\n\t         * @param {Array} iv The IV words.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var mode = CryptoJS.mode.CBC.createDecryptor(cipher, iv.words);\n\t         */\n\t        createDecryptor: function (cipher, iv) {\n\t            return this.Decryptor.create(cipher, iv);\n\t        },\n\n\t        /**\n\t         * Initializes a newly created mode.\n\t         *\n\t         * @param {Cipher} cipher A block cipher instance.\n\t         * @param {Array} iv The IV words.\n\t         *\n\t         * @example\n\t         *\n\t         *     var mode = CryptoJS.mode.CBC.Encryptor.create(cipher, iv.words);\n\t         */\n\t        init: function (cipher, iv) {\n\t            this._cipher = cipher;\n\t            this._iv = iv;\n\t        }\n\t    });\n\n\t    /**\n\t     * Cipher Block Chaining mode.\n\t     */\n\t    var CBC = C_mode.CBC = (function () {\n\t        /**\n\t         * Abstract base CBC mode.\n\t         */\n\t        var CBC = BlockCipherMode.extend();\n\n\t        /**\n\t         * CBC encryptor.\n\t         */\n\t        CBC.Encryptor = CBC.extend({\n\t            /**\n\t             * Processes the data block at offset.\n\t             *\n\t             * @param {Array} words The data words to operate on.\n\t             * @param {number} offset The offset where the block starts.\n\t             *\n\t             * @example\n\t             *\n\t             *     mode.processBlock(data.words, offset);\n\t             */\n\t            processBlock: function (words, offset) {\n\t                // Shortcuts\n\t                var cipher = this._cipher;\n\t                var blockSize = cipher.blockSize;\n\n\t                // XOR and encrypt\n\t                xorBlock.call(this, words, offset, blockSize);\n\t                cipher.encryptBlock(words, offset);\n\n\t                // Remember this block to use with next block\n\t                this._prevBlock = words.slice(offset, offset + blockSize);\n\t            }\n\t        });\n\n\t        /**\n\t         * CBC decryptor.\n\t         */\n\t        CBC.Decryptor = CBC.extend({\n\t            /**\n\t             * Processes the data block at offset.\n\t             *\n\t             * @param {Array} words The data words to operate on.\n\t             * @param {number} offset The offset where the block starts.\n\t             *\n\t             * @example\n\t             *\n\t             *     mode.processBlock(data.words, offset);\n\t             */\n\t            processBlock: function (words, offset) {\n\t                // Shortcuts\n\t                var cipher = this._cipher;\n\t                var blockSize = cipher.blockSize;\n\n\t                // Remember this block to use with next block\n\t                var thisBlock = words.slice(offset, offset + blockSize);\n\n\t                // Decrypt and XOR\n\t                cipher.decryptBlock(words, offset);\n\t                xorBlock.call(this, words, offset, blockSize);\n\n\t                // This block becomes the previous block\n\t                this._prevBlock = thisBlock;\n\t            }\n\t        });\n\n\t        function xorBlock(words, offset, blockSize) {\n\t            var block;\n\n\t            // Shortcut\n\t            var iv = this._iv;\n\n\t            // Choose mixing block\n\t            if (iv) {\n\t                block = iv;\n\n\t                // Remove IV for subsequent blocks\n\t                this._iv = undefined;\n\t            } else {\n\t                block = this._prevBlock;\n\t            }\n\n\t            // XOR blocks\n\t            for (var i = 0; i < blockSize; i++) {\n\t                words[offset + i] ^= block[i];\n\t            }\n\t        }\n\n\t        return CBC;\n\t    }());\n\n\t    /**\n\t     * Padding namespace.\n\t     */\n\t    var C_pad = C.pad = {};\n\n\t    /**\n\t     * PKCS #5/7 padding strategy.\n\t     */\n\t    var Pkcs7 = C_pad.Pkcs7 = {\n\t        /**\n\t         * Pads data using the algorithm defined in PKCS #5/7.\n\t         *\n\t         * @param {WordArray} data The data to pad.\n\t         * @param {number} blockSize The multiple that the data should be padded to.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     CryptoJS.pad.Pkcs7.pad(wordArray, 4);\n\t         */\n\t        pad: function (data, blockSize) {\n\t            // Shortcut\n\t            var blockSizeBytes = blockSize * 4;\n\n\t            // Count padding bytes\n\t            var nPaddingBytes = blockSizeBytes - data.sigBytes % blockSizeBytes;\n\n\t            // Create padding word\n\t            var paddingWord = (nPaddingBytes << 24) | (nPaddingBytes << 16) | (nPaddingBytes << 8) | nPaddingBytes;\n\n\t            // Create padding\n\t            var paddingWords = [];\n\t            for (var i = 0; i < nPaddingBytes; i += 4) {\n\t                paddingWords.push(paddingWord);\n\t            }\n\t            var padding = WordArray.create(paddingWords, nPaddingBytes);\n\n\t            // Add padding\n\t            data.concat(padding);\n\t        },\n\n\t        /**\n\t         * Unpads data that had been padded using the algorithm defined in PKCS #5/7.\n\t         *\n\t         * @param {WordArray} data The data to unpad.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     CryptoJS.pad.Pkcs7.unpad(wordArray);\n\t         */\n\t        unpad: function (data) {\n\t            // Get number of padding bytes from last byte\n\t            var nPaddingBytes = data.words[(data.sigBytes - 1) >>> 2] & 0xff;\n\n\t            // Remove padding\n\t            data.sigBytes -= nPaddingBytes;\n\t        }\n\t    };\n\n\t    /**\n\t     * Abstract base block cipher template.\n\t     *\n\t     * @property {number} blockSize The number of 32-bit words this cipher operates on. Default: 4 (128 bits)\n\t     */\n\t    var BlockCipher = C_lib.BlockCipher = Cipher.extend({\n\t        /**\n\t         * Configuration options.\n\t         *\n\t         * @property {Mode} mode The block mode to use. Default: CBC\n\t         * @property {Padding} padding The padding strategy to use. Default: Pkcs7\n\t         */\n\t        cfg: Cipher.cfg.extend({\n\t            mode: CBC,\n\t            padding: Pkcs7\n\t        }),\n\n\t        reset: function () {\n\t            var modeCreator;\n\n\t            // Reset cipher\n\t            Cipher.reset.call(this);\n\n\t            // Shortcuts\n\t            var cfg = this.cfg;\n\t            var iv = cfg.iv;\n\t            var mode = cfg.mode;\n\n\t            // Reset block mode\n\t            if (this._xformMode == this._ENC_XFORM_MODE) {\n\t                modeCreator = mode.createEncryptor;\n\t            } else /* if (this._xformMode == this._DEC_XFORM_MODE) */ {\n\t                modeCreator = mode.createDecryptor;\n\t                // Keep at least one block in the buffer for unpadding\n\t                this._minBufferSize = 1;\n\t            }\n\n\t            if (this._mode && this._mode.__creator == modeCreator) {\n\t                this._mode.init(this, iv && iv.words);\n\t            } else {\n\t                this._mode = modeCreator.call(mode, this, iv && iv.words);\n\t                this._mode.__creator = modeCreator;\n\t            }\n\t        },\n\n\t        _doProcessBlock: function (words, offset) {\n\t            this._mode.processBlock(words, offset);\n\t        },\n\n\t        _doFinalize: function () {\n\t            var finalProcessedBlocks;\n\n\t            // Shortcut\n\t            var padding = this.cfg.padding;\n\n\t            // Finalize\n\t            if (this._xformMode == this._ENC_XFORM_MODE) {\n\t                // Pad data\n\t                padding.pad(this._data, this.blockSize);\n\n\t                // Process final blocks\n\t                finalProcessedBlocks = this._process(!!'flush');\n\t            } else /* if (this._xformMode == this._DEC_XFORM_MODE) */ {\n\t                // Process final blocks\n\t                finalProcessedBlocks = this._process(!!'flush');\n\n\t                // Unpad data\n\t                padding.unpad(finalProcessedBlocks);\n\t            }\n\n\t            return finalProcessedBlocks;\n\t        },\n\n\t        blockSize: 128/32\n\t    });\n\n\t    /**\n\t     * A collection of cipher parameters.\n\t     *\n\t     * @property {WordArray} ciphertext The raw ciphertext.\n\t     * @property {WordArray} key The key to this ciphertext.\n\t     * @property {WordArray} iv The IV used in the ciphering operation.\n\t     * @property {WordArray} salt The salt used with a key derivation function.\n\t     * @property {Cipher} algorithm The cipher algorithm.\n\t     * @property {Mode} mode The block mode used in the ciphering operation.\n\t     * @property {Padding} padding The padding scheme used in the ciphering operation.\n\t     * @property {number} blockSize The block size of the cipher.\n\t     * @property {Format} formatter The default formatting strategy to convert this cipher params object to a string.\n\t     */\n\t    var CipherParams = C_lib.CipherParams = Base.extend({\n\t        /**\n\t         * Initializes a newly created cipher params object.\n\t         *\n\t         * @param {Object} cipherParams An object with any of the possible cipher parameters.\n\t         *\n\t         * @example\n\t         *\n\t         *     var cipherParams = CryptoJS.lib.CipherParams.create({\n\t         *         ciphertext: ciphertextWordArray,\n\t         *         key: keyWordArray,\n\t         *         iv: ivWordArray,\n\t         *         salt: saltWordArray,\n\t         *         algorithm: CryptoJS.algo.AES,\n\t         *         mode: CryptoJS.mode.CBC,\n\t         *         padding: CryptoJS.pad.PKCS7,\n\t         *         blockSize: 4,\n\t         *         formatter: CryptoJS.format.OpenSSL\n\t         *     });\n\t         */\n\t        init: function (cipherParams) {\n\t            this.mixIn(cipherParams);\n\t        },\n\n\t        /**\n\t         * Converts this cipher params object to a string.\n\t         *\n\t         * @param {Format} formatter (Optional) The formatting strategy to use.\n\t         *\n\t         * @return {string} The stringified cipher params.\n\t         *\n\t         * @throws Error If neither the formatter nor the default formatter is set.\n\t         *\n\t         * @example\n\t         *\n\t         *     var string = cipherParams + '';\n\t         *     var string = cipherParams.toString();\n\t         *     var string = cipherParams.toString(CryptoJS.format.OpenSSL);\n\t         */\n\t        toString: function (formatter) {\n\t            return (formatter || this.formatter).stringify(this);\n\t        }\n\t    });\n\n\t    /**\n\t     * Format namespace.\n\t     */\n\t    var C_format = C.format = {};\n\n\t    /**\n\t     * OpenSSL formatting strategy.\n\t     */\n\t    var OpenSSLFormatter = C_format.OpenSSL = {\n\t        /**\n\t         * Converts a cipher params object to an OpenSSL-compatible string.\n\t         *\n\t         * @param {CipherParams} cipherParams The cipher params object.\n\t         *\n\t         * @return {string} The OpenSSL-compatible string.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var openSSLString = CryptoJS.format.OpenSSL.stringify(cipherParams);\n\t         */\n\t        stringify: function (cipherParams) {\n\t            var wordArray;\n\n\t            // Shortcuts\n\t            var ciphertext = cipherParams.ciphertext;\n\t            var salt = cipherParams.salt;\n\n\t            // Format\n\t            if (salt) {\n\t                wordArray = WordArray.create([0x53616c74, 0x65645f5f]).concat(salt).concat(ciphertext);\n\t            } else {\n\t                wordArray = ciphertext;\n\t            }\n\n\t            return wordArray.toString(Base64);\n\t        },\n\n\t        /**\n\t         * Converts an OpenSSL-compatible string to a cipher params object.\n\t         *\n\t         * @param {string} openSSLStr The OpenSSL-compatible string.\n\t         *\n\t         * @return {CipherParams} The cipher params object.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var cipherParams = CryptoJS.format.OpenSSL.parse(openSSLString);\n\t         */\n\t        parse: function (openSSLStr) {\n\t            var salt;\n\n\t            // Parse base64\n\t            var ciphertext = Base64.parse(openSSLStr);\n\n\t            // Shortcut\n\t            var ciphertextWords = ciphertext.words;\n\n\t            // Test for salt\n\t            if (ciphertextWords[0] == 0x53616c74 && ciphertextWords[1] == 0x65645f5f) {\n\t                // Extract salt\n\t                salt = WordArray.create(ciphertextWords.slice(2, 4));\n\n\t                // Remove salt from ciphertext\n\t                ciphertextWords.splice(0, 4);\n\t                ciphertext.sigBytes -= 16;\n\t            }\n\n\t            return CipherParams.create({ ciphertext: ciphertext, salt: salt });\n\t        }\n\t    };\n\n\t    /**\n\t     * A cipher wrapper that returns ciphertext as a serializable cipher params object.\n\t     */\n\t    var SerializableCipher = C_lib.SerializableCipher = Base.extend({\n\t        /**\n\t         * Configuration options.\n\t         *\n\t         * @property {Formatter} format The formatting strategy to convert cipher param objects to and from a string. Default: OpenSSL\n\t         */\n\t        cfg: Base.extend({\n\t            format: OpenSSLFormatter\n\t        }),\n\n\t        /**\n\t         * Encrypts a message.\n\t         *\n\t         * @param {Cipher} cipher The cipher algorithm to use.\n\t         * @param {WordArray|string} message The message to encrypt.\n\t         * @param {WordArray} key The key.\n\t         * @param {Object} cfg (Optional) The configuration options to use for this operation.\n\t         *\n\t         * @return {CipherParams} A cipher params object.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var ciphertextParams = CryptoJS.lib.SerializableCipher.encrypt(CryptoJS.algo.AES, message, key);\n\t         *     var ciphertextParams = CryptoJS.lib.SerializableCipher.encrypt(CryptoJS.algo.AES, message, key, { iv: iv });\n\t         *     var ciphertextParams = CryptoJS.lib.SerializableCipher.encrypt(CryptoJS.algo.AES, message, key, { iv: iv, format: CryptoJS.format.OpenSSL });\n\t         */\n\t        encrypt: function (cipher, message, key, cfg) {\n\t            // Apply config defaults\n\t            cfg = this.cfg.extend(cfg);\n\n\t            // Encrypt\n\t            var encryptor = cipher.createEncryptor(key, cfg);\n\t            var ciphertext = encryptor.finalize(message);\n\n\t            // Shortcut\n\t            var cipherCfg = encryptor.cfg;\n\n\t            // Create and return serializable cipher params\n\t            return CipherParams.create({\n\t                ciphertext: ciphertext,\n\t                key: key,\n\t                iv: cipherCfg.iv,\n\t                algorithm: cipher,\n\t                mode: cipherCfg.mode,\n\t                padding: cipherCfg.padding,\n\t                blockSize: cipher.blockSize,\n\t                formatter: cfg.format\n\t            });\n\t        },\n\n\t        /**\n\t         * Decrypts serialized ciphertext.\n\t         *\n\t         * @param {Cipher} cipher The cipher algorithm to use.\n\t         * @param {CipherParams|string} ciphertext The ciphertext to decrypt.\n\t         * @param {WordArray} key The key.\n\t         * @param {Object} cfg (Optional) The configuration options to use for this operation.\n\t         *\n\t         * @return {WordArray} The plaintext.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var plaintext = CryptoJS.lib.SerializableCipher.decrypt(CryptoJS.algo.AES, formattedCiphertext, key, { iv: iv, format: CryptoJS.format.OpenSSL });\n\t         *     var plaintext = CryptoJS.lib.SerializableCipher.decrypt(CryptoJS.algo.AES, ciphertextParams, key, { iv: iv, format: CryptoJS.format.OpenSSL });\n\t         */\n\t        decrypt: function (cipher, ciphertext, key, cfg) {\n\t            // Apply config defaults\n\t            cfg = this.cfg.extend(cfg);\n\n\t            // Convert string to CipherParams\n\t            ciphertext = this._parse(ciphertext, cfg.format);\n\n\t            // Decrypt\n\t            var plaintext = cipher.createDecryptor(key, cfg).finalize(ciphertext.ciphertext);\n\n\t            return plaintext;\n\t        },\n\n\t        /**\n\t         * Converts serialized ciphertext to CipherParams,\n\t         * else assumed CipherParams already and returns ciphertext unchanged.\n\t         *\n\t         * @param {CipherParams|string} ciphertext The ciphertext.\n\t         * @param {Formatter} format The formatting strategy to use to parse serialized ciphertext.\n\t         *\n\t         * @return {CipherParams} The unserialized ciphertext.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var ciphertextParams = CryptoJS.lib.SerializableCipher._parse(ciphertextStringOrParams, format);\n\t         */\n\t        _parse: function (ciphertext, format) {\n\t            if (typeof ciphertext == 'string') {\n\t                return format.parse(ciphertext, this);\n\t            } else {\n\t                return ciphertext;\n\t            }\n\t        }\n\t    });\n\n\t    /**\n\t     * Key derivation function namespace.\n\t     */\n\t    var C_kdf = C.kdf = {};\n\n\t    /**\n\t     * OpenSSL key derivation function.\n\t     */\n\t    var OpenSSLKdf = C_kdf.OpenSSL = {\n\t        /**\n\t         * Derives a key and IV from a password.\n\t         *\n\t         * @param {string} password The password to derive from.\n\t         * @param {number} keySize The size in words of the key to generate.\n\t         * @param {number} ivSize The size in words of the IV to generate.\n\t         * @param {WordArray|string} salt (Optional) A 64-bit salt to use. If omitted, a salt will be generated randomly.\n\t         *\n\t         * @return {CipherParams} A cipher params object with the key, IV, and salt.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var derivedParams = CryptoJS.kdf.OpenSSL.execute('Password', 256/32, 128/32);\n\t         *     var derivedParams = CryptoJS.kdf.OpenSSL.execute('Password', 256/32, 128/32, 'saltsalt');\n\t         */\n\t        execute: function (password, keySize, ivSize, salt) {\n\t            // Generate random salt\n\t            if (!salt) {\n\t                salt = WordArray.random(64/8);\n\t            }\n\n\t            // Derive key and IV\n\t            var key = EvpKDF.create({ keySize: keySize + ivSize }).compute(password, salt);\n\n\t            // Separate key and IV\n\t            var iv = WordArray.create(key.words.slice(keySize), ivSize * 4);\n\t            key.sigBytes = keySize * 4;\n\n\t            // Return params\n\t            return CipherParams.create({ key: key, iv: iv, salt: salt });\n\t        }\n\t    };\n\n\t    /**\n\t     * A serializable cipher wrapper that derives the key from a password,\n\t     * and returns ciphertext as a serializable cipher params object.\n\t     */\n\t    var PasswordBasedCipher = C_lib.PasswordBasedCipher = SerializableCipher.extend({\n\t        /**\n\t         * Configuration options.\n\t         *\n\t         * @property {KDF} kdf The key derivation function to use to generate a key and IV from a password. Default: OpenSSL\n\t         */\n\t        cfg: SerializableCipher.cfg.extend({\n\t            kdf: OpenSSLKdf\n\t        }),\n\n\t        /**\n\t         * Encrypts a message using a password.\n\t         *\n\t         * @param {Cipher} cipher The cipher algorithm to use.\n\t         * @param {WordArray|string} message The message to encrypt.\n\t         * @param {string} password The password.\n\t         * @param {Object} cfg (Optional) The configuration options to use for this operation.\n\t         *\n\t         * @return {CipherParams} A cipher params object.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var ciphertextParams = CryptoJS.lib.PasswordBasedCipher.encrypt(CryptoJS.algo.AES, message, 'password');\n\t         *     var ciphertextParams = CryptoJS.lib.PasswordBasedCipher.encrypt(CryptoJS.algo.AES, message, 'password', { format: CryptoJS.format.OpenSSL });\n\t         */\n\t        encrypt: function (cipher, message, password, cfg) {\n\t            // Apply config defaults\n\t            cfg = this.cfg.extend(cfg);\n\n\t            // Derive key and other params\n\t            var derivedParams = cfg.kdf.execute(password, cipher.keySize, cipher.ivSize);\n\n\t            // Add IV to config\n\t            cfg.iv = derivedParams.iv;\n\n\t            // Encrypt\n\t            var ciphertext = SerializableCipher.encrypt.call(this, cipher, message, derivedParams.key, cfg);\n\n\t            // Mix in derived params\n\t            ciphertext.mixIn(derivedParams);\n\n\t            return ciphertext;\n\t        },\n\n\t        /**\n\t         * Decrypts serialized ciphertext using a password.\n\t         *\n\t         * @param {Cipher} cipher The cipher algorithm to use.\n\t         * @param {CipherParams|string} ciphertext The ciphertext to decrypt.\n\t         * @param {string} password The password.\n\t         * @param {Object} cfg (Optional) The configuration options to use for this operation.\n\t         *\n\t         * @return {WordArray} The plaintext.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var plaintext = CryptoJS.lib.PasswordBasedCipher.decrypt(CryptoJS.algo.AES, formattedCiphertext, 'password', { format: CryptoJS.format.OpenSSL });\n\t         *     var plaintext = CryptoJS.lib.PasswordBasedCipher.decrypt(CryptoJS.algo.AES, ciphertextParams, 'password', { format: CryptoJS.format.OpenSSL });\n\t         */\n\t        decrypt: function (cipher, ciphertext, password, cfg) {\n\t            // Apply config defaults\n\t            cfg = this.cfg.extend(cfg);\n\n\t            // Convert string to CipherParams\n\t            ciphertext = this._parse(ciphertext, cfg.format);\n\n\t            // Derive key and other params\n\t            var derivedParams = cfg.kdf.execute(password, cipher.keySize, cipher.ivSize, ciphertext.salt);\n\n\t            // Add IV to config\n\t            cfg.iv = derivedParams.iv;\n\n\t            // Decrypt\n\t            var plaintext = SerializableCipher.decrypt.call(this, cipher, ciphertext, derivedParams.key, cfg);\n\n\t            return plaintext;\n\t        }\n\t    });\n\t}());\n\n\n\t/**\n\t * Cipher Feedback block mode.\n\t */\n\tCryptoJS.mode.CFB = (function () {\n\t    var CFB = CryptoJS.lib.BlockCipherMode.extend();\n\n\t    CFB.Encryptor = CFB.extend({\n\t        processBlock: function (words, offset) {\n\t            // Shortcuts\n\t            var cipher = this._cipher;\n\t            var blockSize = cipher.blockSize;\n\n\t            generateKeystreamAndEncrypt.call(this, words, offset, blockSize, cipher);\n\n\t            // Remember this block to use with next block\n\t            this._prevBlock = words.slice(offset, offset + blockSize);\n\t        }\n\t    });\n\n\t    CFB.Decryptor = CFB.extend({\n\t        processBlock: function (words, offset) {\n\t            // Shortcuts\n\t            var cipher = this._cipher;\n\t            var blockSize = cipher.blockSize;\n\n\t            // Remember this block to use with next block\n\t            var thisBlock = words.slice(offset, offset + blockSize);\n\n\t            generateKeystreamAndEncrypt.call(this, words, offset, blockSize, cipher);\n\n\t            // This block becomes the previous block\n\t            this._prevBlock = thisBlock;\n\t        }\n\t    });\n\n\t    function generateKeystreamAndEncrypt(words, offset, blockSize, cipher) {\n\t        var keystream;\n\n\t        // Shortcut\n\t        var iv = this._iv;\n\n\t        // Generate keystream\n\t        if (iv) {\n\t            keystream = iv.slice(0);\n\n\t            // Remove IV for subsequent blocks\n\t            this._iv = undefined;\n\t        } else {\n\t            keystream = this._prevBlock;\n\t        }\n\t        cipher.encryptBlock(keystream, 0);\n\n\t        // Encrypt\n\t        for (var i = 0; i < blockSize; i++) {\n\t            words[offset + i] ^= keystream[i];\n\t        }\n\t    }\n\n\t    return CFB;\n\t}());\n\n\n\t/**\n\t * Electronic Codebook block mode.\n\t */\n\tCryptoJS.mode.ECB = (function () {\n\t    var ECB = CryptoJS.lib.BlockCipherMode.extend();\n\n\t    ECB.Encryptor = ECB.extend({\n\t        processBlock: function (words, offset) {\n\t            this._cipher.encryptBlock(words, offset);\n\t        }\n\t    });\n\n\t    ECB.Decryptor = ECB.extend({\n\t        processBlock: function (words, offset) {\n\t            this._cipher.decryptBlock(words, offset);\n\t        }\n\t    });\n\n\t    return ECB;\n\t}());\n\n\n\t/**\n\t * ANSI X.923 padding strategy.\n\t */\n\tCryptoJS.pad.AnsiX923 = {\n\t    pad: function (data, blockSize) {\n\t        // Shortcuts\n\t        var dataSigBytes = data.sigBytes;\n\t        var blockSizeBytes = blockSize * 4;\n\n\t        // Count padding bytes\n\t        var nPaddingBytes = blockSizeBytes - dataSigBytes % blockSizeBytes;\n\n\t        // Compute last byte position\n\t        var lastBytePos = dataSigBytes + nPaddingBytes - 1;\n\n\t        // Pad\n\t        data.clamp();\n\t        data.words[lastBytePos >>> 2] |= nPaddingBytes << (24 - (lastBytePos % 4) * 8);\n\t        data.sigBytes += nPaddingBytes;\n\t    },\n\n\t    unpad: function (data) {\n\t        // Get number of padding bytes from last byte\n\t        var nPaddingBytes = data.words[(data.sigBytes - 1) >>> 2] & 0xff;\n\n\t        // Remove padding\n\t        data.sigBytes -= nPaddingBytes;\n\t    }\n\t};\n\n\n\t/**\n\t * ISO 10126 padding strategy.\n\t */\n\tCryptoJS.pad.Iso10126 = {\n\t    pad: function (data, blockSize) {\n\t        // Shortcut\n\t        var blockSizeBytes = blockSize * 4;\n\n\t        // Count padding bytes\n\t        var nPaddingBytes = blockSizeBytes - data.sigBytes % blockSizeBytes;\n\n\t        // Pad\n\t        data.concat(CryptoJS.lib.WordArray.random(nPaddingBytes - 1)).\n\t             concat(CryptoJS.lib.WordArray.create([nPaddingBytes << 24], 1));\n\t    },\n\n\t    unpad: function (data) {\n\t        // Get number of padding bytes from last byte\n\t        var nPaddingBytes = data.words[(data.sigBytes - 1) >>> 2] & 0xff;\n\n\t        // Remove padding\n\t        data.sigBytes -= nPaddingBytes;\n\t    }\n\t};\n\n\n\t/**\n\t * ISO/IEC 9797-1 Padding Method 2.\n\t */\n\tCryptoJS.pad.Iso97971 = {\n\t    pad: function (data, blockSize) {\n\t        // Add 0x80 byte\n\t        data.concat(CryptoJS.lib.WordArray.create([0x80000000], 1));\n\n\t        // Zero pad the rest\n\t        CryptoJS.pad.ZeroPadding.pad(data, blockSize);\n\t    },\n\n\t    unpad: function (data) {\n\t        // Remove zero padding\n\t        CryptoJS.pad.ZeroPadding.unpad(data);\n\n\t        // Remove one more byte -- the 0x80 byte\n\t        data.sigBytes--;\n\t    }\n\t};\n\n\n\t/**\n\t * Output Feedback block mode.\n\t */\n\tCryptoJS.mode.OFB = (function () {\n\t    var OFB = CryptoJS.lib.BlockCipherMode.extend();\n\n\t    var Encryptor = OFB.Encryptor = OFB.extend({\n\t        processBlock: function (words, offset) {\n\t            // Shortcuts\n\t            var cipher = this._cipher\n\t            var blockSize = cipher.blockSize;\n\t            var iv = this._iv;\n\t            var keystream = this._keystream;\n\n\t            // Generate keystream\n\t            if (iv) {\n\t                keystream = this._keystream = iv.slice(0);\n\n\t                // Remove IV for subsequent blocks\n\t                this._iv = undefined;\n\t            }\n\t            cipher.encryptBlock(keystream, 0);\n\n\t            // Encrypt\n\t            for (var i = 0; i < blockSize; i++) {\n\t                words[offset + i] ^= keystream[i];\n\t            }\n\t        }\n\t    });\n\n\t    OFB.Decryptor = Encryptor;\n\n\t    return OFB;\n\t}());\n\n\n\t/**\n\t * A noop padding strategy.\n\t */\n\tCryptoJS.pad.NoPadding = {\n\t    pad: function () {\n\t    },\n\n\t    unpad: function () {\n\t    }\n\t};\n\n\n\t(function (undefined) {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var CipherParams = C_lib.CipherParams;\n\t    var C_enc = C.enc;\n\t    var Hex = C_enc.Hex;\n\t    var C_format = C.format;\n\n\t    var HexFormatter = C_format.Hex = {\n\t        /**\n\t         * Converts the ciphertext of a cipher params object to a hexadecimally encoded string.\n\t         *\n\t         * @param {CipherParams} cipherParams The cipher params object.\n\t         *\n\t         * @return {string} The hexadecimally encoded string.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var hexString = CryptoJS.format.Hex.stringify(cipherParams);\n\t         */\n\t        stringify: function (cipherParams) {\n\t            return cipherParams.ciphertext.toString(Hex);\n\t        },\n\n\t        /**\n\t         * Converts a hexadecimally encoded ciphertext string to a cipher params object.\n\t         *\n\t         * @param {string} input The hexadecimally encoded string.\n\t         *\n\t         * @return {CipherParams} The cipher params object.\n\t         *\n\t         * @static\n\t         *\n\t         * @example\n\t         *\n\t         *     var cipherParams = CryptoJS.format.Hex.parse(hexString);\n\t         */\n\t        parse: function (input) {\n\t            var ciphertext = Hex.parse(input);\n\t            return CipherParams.create({ ciphertext: ciphertext });\n\t        }\n\t    };\n\t}());\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var BlockCipher = C_lib.BlockCipher;\n\t    var C_algo = C.algo;\n\n\t    // Lookup tables\n\t    var SBOX = [];\n\t    var INV_SBOX = [];\n\t    var SUB_MIX_0 = [];\n\t    var SUB_MIX_1 = [];\n\t    var SUB_MIX_2 = [];\n\t    var SUB_MIX_3 = [];\n\t    var INV_SUB_MIX_0 = [];\n\t    var INV_SUB_MIX_1 = [];\n\t    var INV_SUB_MIX_2 = [];\n\t    var INV_SUB_MIX_3 = [];\n\n\t    // Compute lookup tables\n\t    (function () {\n\t        // Compute double table\n\t        var d = [];\n\t        for (var i = 0; i < 256; i++) {\n\t            if (i < 128) {\n\t                d[i] = i << 1;\n\t            } else {\n\t                d[i] = (i << 1) ^ 0x11b;\n\t            }\n\t        }\n\n\t        // Walk GF(2^8)\n\t        var x = 0;\n\t        var xi = 0;\n\t        for (var i = 0; i < 256; i++) {\n\t            // Compute sbox\n\t            var sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4);\n\t            sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63;\n\t            SBOX[x] = sx;\n\t            INV_SBOX[sx] = x;\n\n\t            // Compute multiplication\n\t            var x2 = d[x];\n\t            var x4 = d[x2];\n\t            var x8 = d[x4];\n\n\t            // Compute sub bytes, mix columns tables\n\t            var t = (d[sx] * 0x101) ^ (sx * 0x1010100);\n\t            SUB_MIX_0[x] = (t << 24) | (t >>> 8);\n\t            SUB_MIX_1[x] = (t << 16) | (t >>> 16);\n\t            SUB_MIX_2[x] = (t << 8)  | (t >>> 24);\n\t            SUB_MIX_3[x] = t;\n\n\t            // Compute inv sub bytes, inv mix columns tables\n\t            var t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100);\n\t            INV_SUB_MIX_0[sx] = (t << 24) | (t >>> 8);\n\t            INV_SUB_MIX_1[sx] = (t << 16) | (t >>> 16);\n\t            INV_SUB_MIX_2[sx] = (t << 8)  | (t >>> 24);\n\t            INV_SUB_MIX_3[sx] = t;\n\n\t            // Compute next counter\n\t            if (!x) {\n\t                x = xi = 1;\n\t            } else {\n\t                x = x2 ^ d[d[d[x8 ^ x2]]];\n\t                xi ^= d[d[xi]];\n\t            }\n\t        }\n\t    }());\n\n\t    // Precomputed Rcon lookup\n\t    var RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36];\n\n\t    /**\n\t     * AES block cipher algorithm.\n\t     */\n\t    var AES = C_algo.AES = BlockCipher.extend({\n\t        _doReset: function () {\n\t            var t;\n\n\t            // Skip reset of nRounds has been set before and key did not change\n\t            if (this._nRounds && this._keyPriorReset === this._key) {\n\t                return;\n\t            }\n\n\t            // Shortcuts\n\t            var key = this._keyPriorReset = this._key;\n\t            var keyWords = key.words;\n\t            var keySize = key.sigBytes / 4;\n\n\t            // Compute number of rounds\n\t            var nRounds = this._nRounds = keySize + 6;\n\n\t            // Compute number of key schedule rows\n\t            var ksRows = (nRounds + 1) * 4;\n\n\t            // Compute key schedule\n\t            var keySchedule = this._keySchedule = [];\n\t            for (var ksRow = 0; ksRow < ksRows; ksRow++) {\n\t                if (ksRow < keySize) {\n\t                    keySchedule[ksRow] = keyWords[ksRow];\n\t                } else {\n\t                    t = keySchedule[ksRow - 1];\n\n\t                    if (!(ksRow % keySize)) {\n\t                        // Rot word\n\t                        t = (t << 8) | (t >>> 24);\n\n\t                        // Sub word\n\t                        t = (SBOX[t >>> 24] << 24) | (SBOX[(t >>> 16) & 0xff] << 16) | (SBOX[(t >>> 8) & 0xff] << 8) | SBOX[t & 0xff];\n\n\t                        // Mix Rcon\n\t                        t ^= RCON[(ksRow / keySize) | 0] << 24;\n\t                    } else if (keySize > 6 && ksRow % keySize == 4) {\n\t                        // Sub word\n\t                        t = (SBOX[t >>> 24] << 24) | (SBOX[(t >>> 16) & 0xff] << 16) | (SBOX[(t >>> 8) & 0xff] << 8) | SBOX[t & 0xff];\n\t                    }\n\n\t                    keySchedule[ksRow] = keySchedule[ksRow - keySize] ^ t;\n\t                }\n\t            }\n\n\t            // Compute inv key schedule\n\t            var invKeySchedule = this._invKeySchedule = [];\n\t            for (var invKsRow = 0; invKsRow < ksRows; invKsRow++) {\n\t                var ksRow = ksRows - invKsRow;\n\n\t                if (invKsRow % 4) {\n\t                    var t = keySchedule[ksRow];\n\t                } else {\n\t                    var t = keySchedule[ksRow - 4];\n\t                }\n\n\t                if (invKsRow < 4 || ksRow <= 4) {\n\t                    invKeySchedule[invKsRow] = t;\n\t                } else {\n\t                    invKeySchedule[invKsRow] = INV_SUB_MIX_0[SBOX[t >>> 24]] ^ INV_SUB_MIX_1[SBOX[(t >>> 16) & 0xff]] ^\n\t                                               INV_SUB_MIX_2[SBOX[(t >>> 8) & 0xff]] ^ INV_SUB_MIX_3[SBOX[t & 0xff]];\n\t                }\n\t            }\n\t        },\n\n\t        encryptBlock: function (M, offset) {\n\t            this._doCryptBlock(M, offset, this._keySchedule, SUB_MIX_0, SUB_MIX_1, SUB_MIX_2, SUB_MIX_3, SBOX);\n\t        },\n\n\t        decryptBlock: function (M, offset) {\n\t            // Swap 2nd and 4th rows\n\t            var t = M[offset + 1];\n\t            M[offset + 1] = M[offset + 3];\n\t            M[offset + 3] = t;\n\n\t            this._doCryptBlock(M, offset, this._invKeySchedule, INV_SUB_MIX_0, INV_SUB_MIX_1, INV_SUB_MIX_2, INV_SUB_MIX_3, INV_SBOX);\n\n\t            // Inv swap 2nd and 4th rows\n\t            var t = M[offset + 1];\n\t            M[offset + 1] = M[offset + 3];\n\t            M[offset + 3] = t;\n\t        },\n\n\t        _doCryptBlock: function (M, offset, keySchedule, SUB_MIX_0, SUB_MIX_1, SUB_MIX_2, SUB_MIX_3, SBOX) {\n\t            // Shortcut\n\t            var nRounds = this._nRounds;\n\n\t            // Get input, add round key\n\t            var s0 = M[offset]     ^ keySchedule[0];\n\t            var s1 = M[offset + 1] ^ keySchedule[1];\n\t            var s2 = M[offset + 2] ^ keySchedule[2];\n\t            var s3 = M[offset + 3] ^ keySchedule[3];\n\n\t            // Key schedule row counter\n\t            var ksRow = 4;\n\n\t            // Rounds\n\t            for (var round = 1; round < nRounds; round++) {\n\t                // Shift rows, sub bytes, mix columns, add round key\n\t                var t0 = SUB_MIX_0[s0 >>> 24] ^ SUB_MIX_1[(s1 >>> 16) & 0xff] ^ SUB_MIX_2[(s2 >>> 8) & 0xff] ^ SUB_MIX_3[s3 & 0xff] ^ keySchedule[ksRow++];\n\t                var t1 = SUB_MIX_0[s1 >>> 24] ^ SUB_MIX_1[(s2 >>> 16) & 0xff] ^ SUB_MIX_2[(s3 >>> 8) & 0xff] ^ SUB_MIX_3[s0 & 0xff] ^ keySchedule[ksRow++];\n\t                var t2 = SUB_MIX_0[s2 >>> 24] ^ SUB_MIX_1[(s3 >>> 16) & 0xff] ^ SUB_MIX_2[(s0 >>> 8) & 0xff] ^ SUB_MIX_3[s1 & 0xff] ^ keySchedule[ksRow++];\n\t                var t3 = SUB_MIX_0[s3 >>> 24] ^ SUB_MIX_1[(s0 >>> 16) & 0xff] ^ SUB_MIX_2[(s1 >>> 8) & 0xff] ^ SUB_MIX_3[s2 & 0xff] ^ keySchedule[ksRow++];\n\n\t                // Update state\n\t                s0 = t0;\n\t                s1 = t1;\n\t                s2 = t2;\n\t                s3 = t3;\n\t            }\n\n\t            // Shift rows, sub bytes, add round key\n\t            var t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++];\n\t            var t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++];\n\t            var t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++];\n\t            var t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++];\n\n\t            // Set output\n\t            M[offset]     = t0;\n\t            M[offset + 1] = t1;\n\t            M[offset + 2] = t2;\n\t            M[offset + 3] = t3;\n\t        },\n\n\t        keySize: 256/32\n\t    });\n\n\t    /**\n\t     * Shortcut functions to the cipher's object interface.\n\t     *\n\t     * @example\n\t     *\n\t     *     var ciphertext = CryptoJS.AES.encrypt(message, key, cfg);\n\t     *     var plaintext  = CryptoJS.AES.decrypt(ciphertext, key, cfg);\n\t     */\n\t    C.AES = BlockCipher._createHelper(AES);\n\t}());\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var WordArray = C_lib.WordArray;\n\t    var BlockCipher = C_lib.BlockCipher;\n\t    var C_algo = C.algo;\n\n\t    // Permuted Choice 1 constants\n\t    var PC1 = [\n\t        57, 49, 41, 33, 25, 17, 9,  1,\n\t        58, 50, 42, 34, 26, 18, 10, 2,\n\t        59, 51, 43, 35, 27, 19, 11, 3,\n\t        60, 52, 44, 36, 63, 55, 47, 39,\n\t        31, 23, 15, 7,  62, 54, 46, 38,\n\t        30, 22, 14, 6,  61, 53, 45, 37,\n\t        29, 21, 13, 5,  28, 20, 12, 4\n\t    ];\n\n\t    // Permuted Choice 2 constants\n\t    var PC2 = [\n\t        14, 17, 11, 24, 1,  5,\n\t        3,  28, 15, 6,  21, 10,\n\t        23, 19, 12, 4,  26, 8,\n\t        16, 7,  27, 20, 13, 2,\n\t        41, 52, 31, 37, 47, 55,\n\t        30, 40, 51, 45, 33, 48,\n\t        44, 49, 39, 56, 34, 53,\n\t        46, 42, 50, 36, 29, 32\n\t    ];\n\n\t    // Cumulative bit shift constants\n\t    var BIT_SHIFTS = [1,  2,  4,  6,  8,  10, 12, 14, 15, 17, 19, 21, 23, 25, 27, 28];\n\n\t    // SBOXes and round permutation constants\n\t    var SBOX_P = [\n\t        {\n\t            0x0: 0x808200,\n\t            0x10000000: 0x8000,\n\t            0x20000000: 0x808002,\n\t            0x30000000: 0x2,\n\t            0x40000000: 0x200,\n\t            0x50000000: 0x808202,\n\t            0x60000000: 0x800202,\n\t            0x70000000: 0x800000,\n\t            0x80000000: 0x202,\n\t            0x90000000: 0x800200,\n\t            0xa0000000: 0x8200,\n\t            0xb0000000: 0x808000,\n\t            0xc0000000: 0x8002,\n\t            0xd0000000: 0x800002,\n\t            0xe0000000: 0x0,\n\t            0xf0000000: 0x8202,\n\t            0x8000000: 0x0,\n\t            0x18000000: 0x808202,\n\t            0x28000000: 0x8202,\n\t            0x38000000: 0x8000,\n\t            0x48000000: 0x808200,\n\t            0x58000000: 0x200,\n\t            0x68000000: 0x808002,\n\t            0x78000000: 0x2,\n\t            0x88000000: 0x800200,\n\t            0x98000000: 0x8200,\n\t            0xa8000000: 0x808000,\n\t            0xb8000000: 0x800202,\n\t            0xc8000000: 0x800002,\n\t            0xd8000000: 0x8002,\n\t            0xe8000000: 0x202,\n\t            0xf8000000: 0x800000,\n\t            0x1: 0x8000,\n\t            0x10000001: 0x2,\n\t            0x20000001: 0x808200,\n\t            0x30000001: 0x800000,\n\t            0x40000001: 0x808002,\n\t            0x50000001: 0x8200,\n\t            0x60000001: 0x200,\n\t            0x70000001: 0x800202,\n\t            0x80000001: 0x808202,\n\t            0x90000001: 0x808000,\n\t            0xa0000001: 0x800002,\n\t            0xb0000001: 0x8202,\n\t            0xc0000001: 0x202,\n\t            0xd0000001: 0x800200,\n\t            0xe0000001: 0x8002,\n\t            0xf0000001: 0x0,\n\t            0x8000001: 0x808202,\n\t            0x18000001: 0x808000,\n\t            0x28000001: 0x800000,\n\t            0x38000001: 0x200,\n\t            0x48000001: 0x8000,\n\t            0x58000001: 0x800002,\n\t            0x68000001: 0x2,\n\t            0x78000001: 0x8202,\n\t            0x88000001: 0x8002,\n\t            0x98000001: 0x800202,\n\t            0xa8000001: 0x202,\n\t            0xb8000001: 0x808200,\n\t            0xc8000001: 0x800200,\n\t            0xd8000001: 0x0,\n\t            0xe8000001: 0x8200,\n\t            0xf8000001: 0x808002\n\t        },\n\t        {\n\t            0x0: 0x40084010,\n\t            0x1000000: 0x4000,\n\t            0x2000000: 0x80000,\n\t            0x3000000: 0x40080010,\n\t            0x4000000: 0x40000010,\n\t            0x5000000: 0x40084000,\n\t            0x6000000: 0x40004000,\n\t            0x7000000: 0x10,\n\t            0x8000000: 0x84000,\n\t            0x9000000: 0x40004010,\n\t            0xa000000: 0x40000000,\n\t            0xb000000: 0x84010,\n\t            0xc000000: 0x80010,\n\t            0xd000000: 0x0,\n\t            0xe000000: 0x4010,\n\t            0xf000000: 0x40080000,\n\t            0x800000: 0x40004000,\n\t            0x1800000: 0x84010,\n\t            0x2800000: 0x10,\n\t            0x3800000: 0x40004010,\n\t            0x4800000: 0x40084010,\n\t            0x5800000: 0x40000000,\n\t            0x6800000: 0x80000,\n\t            0x7800000: 0x40080010,\n\t            0x8800000: 0x80010,\n\t            0x9800000: 0x0,\n\t            0xa800000: 0x4000,\n\t            0xb800000: 0x40080000,\n\t            0xc800000: 0x40000010,\n\t            0xd800000: 0x84000,\n\t            0xe800000: 0x40084000,\n\t            0xf800000: 0x4010,\n\t            0x10000000: 0x0,\n\t            0x11000000: 0x40080010,\n\t            0x12000000: 0x40004010,\n\t            0x13000000: 0x40084000,\n\t            0x14000000: 0x40080000,\n\t            0x15000000: 0x10,\n\t            0x16000000: 0x84010,\n\t            0x17000000: 0x4000,\n\t            0x18000000: 0x4010,\n\t            0x19000000: 0x80000,\n\t            0x1a000000: 0x80010,\n\t            0x1b000000: 0x40000010,\n\t            0x1c000000: 0x84000,\n\t            0x1d000000: 0x40004000,\n\t            0x1e000000: 0x40000000,\n\t            0x1f000000: 0x40084010,\n\t            0x10800000: 0x84010,\n\t            0x11800000: 0x80000,\n\t            0x12800000: 0x40080000,\n\t            0x13800000: 0x4000,\n\t            0x14800000: 0x40004000,\n\t            0x15800000: 0x40084010,\n\t            0x16800000: 0x10,\n\t            0x17800000: 0x40000000,\n\t            0x18800000: 0x40084000,\n\t            0x19800000: 0x40000010,\n\t            0x1a800000: 0x40004010,\n\t            0x1b800000: 0x80010,\n\t            0x1c800000: 0x0,\n\t            0x1d800000: 0x4010,\n\t            0x1e800000: 0x40080010,\n\t            0x1f800000: 0x84000\n\t        },\n\t        {\n\t            0x0: 0x104,\n\t            0x100000: 0x0,\n\t            0x200000: 0x4000100,\n\t            0x300000: 0x10104,\n\t            0x400000: 0x10004,\n\t            0x500000: 0x4000004,\n\t            0x600000: 0x4010104,\n\t            0x700000: 0x4010000,\n\t            0x800000: 0x4000000,\n\t            0x900000: 0x4010100,\n\t            0xa00000: 0x10100,\n\t            0xb00000: 0x4010004,\n\t            0xc00000: 0x4000104,\n\t            0xd00000: 0x10000,\n\t            0xe00000: 0x4,\n\t            0xf00000: 0x100,\n\t            0x80000: 0x4010100,\n\t            0x180000: 0x4010004,\n\t            0x280000: 0x0,\n\t            0x380000: 0x4000100,\n\t            0x480000: 0x4000004,\n\t            0x580000: 0x10000,\n\t            0x680000: 0x10004,\n\t            0x780000: 0x104,\n\t            0x880000: 0x4,\n\t            0x980000: 0x100,\n\t            0xa80000: 0x4010000,\n\t            0xb80000: 0x10104,\n\t            0xc80000: 0x10100,\n\t            0xd80000: 0x4000104,\n\t            0xe80000: 0x4010104,\n\t            0xf80000: 0x4000000,\n\t            0x1000000: 0x4010100,\n\t            0x1100000: 0x10004,\n\t            0x1200000: 0x10000,\n\t            0x1300000: 0x4000100,\n\t            0x1400000: 0x100,\n\t            0x1500000: 0x4010104,\n\t            0x1600000: 0x4000004,\n\t            0x1700000: 0x0,\n\t            0x1800000: 0x4000104,\n\t            0x1900000: 0x4000000,\n\t            0x1a00000: 0x4,\n\t            0x1b00000: 0x10100,\n\t            0x1c00000: 0x4010000,\n\t            0x1d00000: 0x104,\n\t            0x1e00000: 0x10104,\n\t            0x1f00000: 0x4010004,\n\t            0x1080000: 0x4000000,\n\t            0x1180000: 0x104,\n\t            0x1280000: 0x4010100,\n\t            0x1380000: 0x0,\n\t            0x1480000: 0x10004,\n\t            0x1580000: 0x4000100,\n\t            0x1680000: 0x100,\n\t            0x1780000: 0x4010004,\n\t            0x1880000: 0x10000,\n\t            0x1980000: 0x4010104,\n\t            0x1a80000: 0x10104,\n\t            0x1b80000: 0x4000004,\n\t            0x1c80000: 0x4000104,\n\t            0x1d80000: 0x4010000,\n\t            0x1e80000: 0x4,\n\t            0x1f80000: 0x10100\n\t        },\n\t        {\n\t            0x0: 0x80401000,\n\t            0x10000: 0x80001040,\n\t            0x20000: 0x401040,\n\t            0x30000: 0x80400000,\n\t            0x40000: 0x0,\n\t            0x50000: 0x401000,\n\t            0x60000: 0x80000040,\n\t            0x70000: 0x400040,\n\t            0x80000: 0x80000000,\n\t            0x90000: 0x400000,\n\t            0xa0000: 0x40,\n\t            0xb0000: 0x80001000,\n\t            0xc0000: 0x80400040,\n\t            0xd0000: 0x1040,\n\t            0xe0000: 0x1000,\n\t            0xf0000: 0x80401040,\n\t            0x8000: 0x80001040,\n\t            0x18000: 0x40,\n\t            0x28000: 0x80400040,\n\t            0x38000: 0x80001000,\n\t            0x48000: 0x401000,\n\t            0x58000: 0x80401040,\n\t            0x68000: 0x0,\n\t            0x78000: 0x80400000,\n\t            0x88000: 0x1000,\n\t            0x98000: 0x80401000,\n\t            0xa8000: 0x400000,\n\t            0xb8000: 0x1040,\n\t            0xc8000: 0x80000000,\n\t            0xd8000: 0x400040,\n\t            0xe8000: 0x401040,\n\t            0xf8000: 0x80000040,\n\t            0x100000: 0x400040,\n\t            0x110000: 0x401000,\n\t            0x120000: 0x80000040,\n\t            0x130000: 0x0,\n\t            0x140000: 0x1040,\n\t            0x150000: 0x80400040,\n\t            0x160000: 0x80401000,\n\t            0x170000: 0x80001040,\n\t            0x180000: 0x80401040,\n\t            0x190000: 0x80000000,\n\t            0x1a0000: 0x80400000,\n\t            0x1b0000: 0x401040,\n\t            0x1c0000: 0x80001000,\n\t            0x1d0000: 0x400000,\n\t            0x1e0000: 0x40,\n\t            0x1f0000: 0x1000,\n\t            0x108000: 0x80400000,\n\t            0x118000: 0x80401040,\n\t            0x128000: 0x0,\n\t            0x138000: 0x401000,\n\t            0x148000: 0x400040,\n\t            0x158000: 0x80000000,\n\t            0x168000: 0x80001040,\n\t            0x178000: 0x40,\n\t            0x188000: 0x80000040,\n\t            0x198000: 0x1000,\n\t            0x1a8000: 0x80001000,\n\t            0x1b8000: 0x80400040,\n\t            0x1c8000: 0x1040,\n\t            0x1d8000: 0x80401000,\n\t            0x1e8000: 0x400000,\n\t            0x1f8000: 0x401040\n\t        },\n\t        {\n\t            0x0: 0x80,\n\t            0x1000: 0x1040000,\n\t            0x2000: 0x40000,\n\t            0x3000: 0x20000000,\n\t            0x4000: 0x20040080,\n\t            0x5000: 0x1000080,\n\t            0x6000: 0x21000080,\n\t            0x7000: 0x40080,\n\t            0x8000: 0x1000000,\n\t            0x9000: 0x20040000,\n\t            0xa000: 0x20000080,\n\t            0xb000: 0x21040080,\n\t            0xc000: 0x21040000,\n\t            0xd000: 0x0,\n\t            0xe000: 0x1040080,\n\t            0xf000: 0x21000000,\n\t            0x800: 0x1040080,\n\t            0x1800: 0x21000080,\n\t            0x2800: 0x80,\n\t            0x3800: 0x1040000,\n\t            0x4800: 0x40000,\n\t            0x5800: 0x20040080,\n\t            0x6800: 0x21040000,\n\t            0x7800: 0x20000000,\n\t            0x8800: 0x20040000,\n\t            0x9800: 0x0,\n\t            0xa800: 0x21040080,\n\t            0xb800: 0x1000080,\n\t            0xc800: 0x20000080,\n\t            0xd800: 0x21000000,\n\t            0xe800: 0x1000000,\n\t            0xf800: 0x40080,\n\t            0x10000: 0x40000,\n\t            0x11000: 0x80,\n\t            0x12000: 0x20000000,\n\t            0x13000: 0x21000080,\n\t            0x14000: 0x1000080,\n\t            0x15000: 0x21040000,\n\t            0x16000: 0x20040080,\n\t            0x17000: 0x1000000,\n\t            0x18000: 0x21040080,\n\t            0x19000: 0x21000000,\n\t            0x1a000: 0x1040000,\n\t            0x1b000: 0x20040000,\n\t            0x1c000: 0x40080,\n\t            0x1d000: 0x20000080,\n\t            0x1e000: 0x0,\n\t            0x1f000: 0x1040080,\n\t            0x10800: 0x21000080,\n\t            0x11800: 0x1000000,\n\t            0x12800: 0x1040000,\n\t            0x13800: 0x20040080,\n\t            0x14800: 0x20000000,\n\t            0x15800: 0x1040080,\n\t            0x16800: 0x80,\n\t            0x17800: 0x21040000,\n\t            0x18800: 0x40080,\n\t            0x19800: 0x21040080,\n\t            0x1a800: 0x0,\n\t            0x1b800: 0x21000000,\n\t            0x1c800: 0x1000080,\n\t            0x1d800: 0x40000,\n\t            0x1e800: 0x20040000,\n\t            0x1f800: 0x20000080\n\t        },\n\t        {\n\t            0x0: 0x10000008,\n\t            0x100: 0x2000,\n\t            0x200: 0x10200000,\n\t            0x300: 0x10202008,\n\t            0x400: 0x10002000,\n\t            0x500: 0x200000,\n\t            0x600: 0x200008,\n\t            0x700: 0x10000000,\n\t            0x800: 0x0,\n\t            0x900: 0x10002008,\n\t            0xa00: 0x202000,\n\t            0xb00: 0x8,\n\t            0xc00: 0x10200008,\n\t            0xd00: 0x202008,\n\t            0xe00: 0x2008,\n\t            0xf00: 0x10202000,\n\t            0x80: 0x10200000,\n\t            0x180: 0x10202008,\n\t            0x280: 0x8,\n\t            0x380: 0x200000,\n\t            0x480: 0x202008,\n\t            0x580: 0x10000008,\n\t            0x680: 0x10002000,\n\t            0x780: 0x2008,\n\t            0x880: 0x200008,\n\t            0x980: 0x2000,\n\t            0xa80: 0x10002008,\n\t            0xb80: 0x10200008,\n\t            0xc80: 0x0,\n\t            0xd80: 0x10202000,\n\t            0xe80: 0x202000,\n\t            0xf80: 0x10000000,\n\t            0x1000: 0x10002000,\n\t            0x1100: 0x10200008,\n\t            0x1200: 0x10202008,\n\t            0x1300: 0x2008,\n\t            0x1400: 0x200000,\n\t            0x1500: 0x10000000,\n\t            0x1600: 0x10000008,\n\t            0x1700: 0x202000,\n\t            0x1800: 0x202008,\n\t            0x1900: 0x0,\n\t            0x1a00: 0x8,\n\t            0x1b00: 0x10200000,\n\t            0x1c00: 0x2000,\n\t            0x1d00: 0x10002008,\n\t            0x1e00: 0x10202000,\n\t            0x1f00: 0x200008,\n\t            0x1080: 0x8,\n\t            0x1180: 0x202000,\n\t            0x1280: 0x200000,\n\t            0x1380: 0x10000008,\n\t            0x1480: 0x10002000,\n\t            0x1580: 0x2008,\n\t            0x1680: 0x10202008,\n\t            0x1780: 0x10200000,\n\t            0x1880: 0x10202000,\n\t            0x1980: 0x10200008,\n\t            0x1a80: 0x2000,\n\t            0x1b80: 0x202008,\n\t            0x1c80: 0x200008,\n\t            0x1d80: 0x0,\n\t            0x1e80: 0x10000000,\n\t            0x1f80: 0x10002008\n\t        },\n\t        {\n\t            0x0: 0x100000,\n\t            0x10: 0x2000401,\n\t            0x20: 0x400,\n\t            0x30: 0x100401,\n\t            0x40: 0x2100401,\n\t            0x50: 0x0,\n\t            0x60: 0x1,\n\t            0x70: 0x2100001,\n\t            0x80: 0x2000400,\n\t            0x90: 0x100001,\n\t            0xa0: 0x2000001,\n\t            0xb0: 0x2100400,\n\t            0xc0: 0x2100000,\n\t            0xd0: 0x401,\n\t            0xe0: 0x100400,\n\t            0xf0: 0x2000000,\n\t            0x8: 0x2100001,\n\t            0x18: 0x0,\n\t            0x28: 0x2000401,\n\t            0x38: 0x2100400,\n\t            0x48: 0x100000,\n\t            0x58: 0x2000001,\n\t            0x68: 0x2000000,\n\t            0x78: 0x401,\n\t            0x88: 0x100401,\n\t            0x98: 0x2000400,\n\t            0xa8: 0x2100000,\n\t            0xb8: 0x100001,\n\t            0xc8: 0x400,\n\t            0xd8: 0x2100401,\n\t            0xe8: 0x1,\n\t            0xf8: 0x100400,\n\t            0x100: 0x2000000,\n\t            0x110: 0x100000,\n\t            0x120: 0x2000401,\n\t            0x130: 0x2100001,\n\t            0x140: 0x100001,\n\t            0x150: 0x2000400,\n\t            0x160: 0x2100400,\n\t            0x170: 0x100401,\n\t            0x180: 0x401,\n\t            0x190: 0x2100401,\n\t            0x1a0: 0x100400,\n\t            0x1b0: 0x1,\n\t            0x1c0: 0x0,\n\t            0x1d0: 0x2100000,\n\t            0x1e0: 0x2000001,\n\t            0x1f0: 0x400,\n\t            0x108: 0x100400,\n\t            0x118: 0x2000401,\n\t            0x128: 0x2100001,\n\t            0x138: 0x1,\n\t            0x148: 0x2000000,\n\t            0x158: 0x100000,\n\t            0x168: 0x401,\n\t            0x178: 0x2100400,\n\t            0x188: 0x2000001,\n\t            0x198: 0x2100000,\n\t            0x1a8: 0x0,\n\t            0x1b8: 0x2100401,\n\t            0x1c8: 0x100401,\n\t            0x1d8: 0x400,\n\t            0x1e8: 0x2000400,\n\t            0x1f8: 0x100001\n\t        },\n\t        {\n\t            0x0: 0x8000820,\n\t            0x1: 0x20000,\n\t            0x2: 0x8000000,\n\t            0x3: 0x20,\n\t            0x4: 0x20020,\n\t            0x5: 0x8020820,\n\t            0x6: 0x8020800,\n\t            0x7: 0x800,\n\t            0x8: 0x8020000,\n\t            0x9: 0x8000800,\n\t            0xa: 0x20800,\n\t            0xb: 0x8020020,\n\t            0xc: 0x820,\n\t            0xd: 0x0,\n\t            0xe: 0x8000020,\n\t            0xf: 0x20820,\n\t            0x80000000: 0x800,\n\t            0x80000001: 0x8020820,\n\t            0x80000002: 0x8000820,\n\t            0x80000003: 0x8000000,\n\t            0x80000004: 0x8020000,\n\t            0x80000005: 0x20800,\n\t            0x80000006: 0x20820,\n\t            0x80000007: 0x20,\n\t            0x80000008: 0x8000020,\n\t            0x80000009: 0x820,\n\t            0x8000000a: 0x20020,\n\t            0x8000000b: 0x8020800,\n\t            0x8000000c: 0x0,\n\t            0x8000000d: 0x8020020,\n\t            0x8000000e: 0x8000800,\n\t            0x8000000f: 0x20000,\n\t            0x10: 0x20820,\n\t            0x11: 0x8020800,\n\t            0x12: 0x20,\n\t            0x13: 0x800,\n\t            0x14: 0x8000800,\n\t            0x15: 0x8000020,\n\t            0x16: 0x8020020,\n\t            0x17: 0x20000,\n\t            0x18: 0x0,\n\t            0x19: 0x20020,\n\t            0x1a: 0x8020000,\n\t            0x1b: 0x8000820,\n\t            0x1c: 0x8020820,\n\t            0x1d: 0x20800,\n\t            0x1e: 0x820,\n\t            0x1f: 0x8000000,\n\t            0x80000010: 0x20000,\n\t            0x80000011: 0x800,\n\t            0x80000012: 0x8020020,\n\t            0x80000013: 0x20820,\n\t            0x80000014: 0x20,\n\t            0x80000015: 0x8020000,\n\t            0x80000016: 0x8000000,\n\t            0x80000017: 0x8000820,\n\t            0x80000018: 0x8020820,\n\t            0x80000019: 0x8000020,\n\t            0x8000001a: 0x8000800,\n\t            0x8000001b: 0x0,\n\t            0x8000001c: 0x20800,\n\t            0x8000001d: 0x820,\n\t            0x8000001e: 0x20020,\n\t            0x8000001f: 0x8020800\n\t        }\n\t    ];\n\n\t    // Masks that select the SBOX input\n\t    var SBOX_MASK = [\n\t        0xf8000001, 0x1f800000, 0x01f80000, 0x001f8000,\n\t        0x0001f800, 0x00001f80, 0x000001f8, 0x8000001f\n\t    ];\n\n\t    /**\n\t     * DES block cipher algorithm.\n\t     */\n\t    var DES = C_algo.DES = BlockCipher.extend({\n\t        _doReset: function () {\n\t            // Shortcuts\n\t            var key = this._key;\n\t            var keyWords = key.words;\n\n\t            // Select 56 bits according to PC1\n\t            var keyBits = [];\n\t            for (var i = 0; i < 56; i++) {\n\t                var keyBitPos = PC1[i] - 1;\n\t                keyBits[i] = (keyWords[keyBitPos >>> 5] >>> (31 - keyBitPos % 32)) & 1;\n\t            }\n\n\t            // Assemble 16 subkeys\n\t            var subKeys = this._subKeys = [];\n\t            for (var nSubKey = 0; nSubKey < 16; nSubKey++) {\n\t                // Create subkey\n\t                var subKey = subKeys[nSubKey] = [];\n\n\t                // Shortcut\n\t                var bitShift = BIT_SHIFTS[nSubKey];\n\n\t                // Select 48 bits according to PC2\n\t                for (var i = 0; i < 24; i++) {\n\t                    // Select from the left 28 key bits\n\t                    subKey[(i / 6) | 0] |= keyBits[((PC2[i] - 1) + bitShift) % 28] << (31 - i % 6);\n\n\t                    // Select from the right 28 key bits\n\t                    subKey[4 + ((i / 6) | 0)] |= keyBits[28 + (((PC2[i + 24] - 1) + bitShift) % 28)] << (31 - i % 6);\n\t                }\n\n\t                // Since each subkey is applied to an expanded 32-bit input,\n\t                // the subkey can be broken into 8 values scaled to 32-bits,\n\t                // which allows the key to be used without expansion\n\t                subKey[0] = (subKey[0] << 1) | (subKey[0] >>> 31);\n\t                for (var i = 1; i < 7; i++) {\n\t                    subKey[i] = subKey[i] >>> ((i - 1) * 4 + 3);\n\t                }\n\t                subKey[7] = (subKey[7] << 5) | (subKey[7] >>> 27);\n\t            }\n\n\t            // Compute inverse subkeys\n\t            var invSubKeys = this._invSubKeys = [];\n\t            for (var i = 0; i < 16; i++) {\n\t                invSubKeys[i] = subKeys[15 - i];\n\t            }\n\t        },\n\n\t        encryptBlock: function (M, offset) {\n\t            this._doCryptBlock(M, offset, this._subKeys);\n\t        },\n\n\t        decryptBlock: function (M, offset) {\n\t            this._doCryptBlock(M, offset, this._invSubKeys);\n\t        },\n\n\t        _doCryptBlock: function (M, offset, subKeys) {\n\t            // Get input\n\t            this._lBlock = M[offset];\n\t            this._rBlock = M[offset + 1];\n\n\t            // Initial permutation\n\t            exchangeLR.call(this, 4,  0x0f0f0f0f);\n\t            exchangeLR.call(this, 16, 0x0000ffff);\n\t            exchangeRL.call(this, 2,  0x33333333);\n\t            exchangeRL.call(this, 8,  0x00ff00ff);\n\t            exchangeLR.call(this, 1,  0x55555555);\n\n\t            // Rounds\n\t            for (var round = 0; round < 16; round++) {\n\t                // Shortcuts\n\t                var subKey = subKeys[round];\n\t                var lBlock = this._lBlock;\n\t                var rBlock = this._rBlock;\n\n\t                // Feistel function\n\t                var f = 0;\n\t                for (var i = 0; i < 8; i++) {\n\t                    f |= SBOX_P[i][((rBlock ^ subKey[i]) & SBOX_MASK[i]) >>> 0];\n\t                }\n\t                this._lBlock = rBlock;\n\t                this._rBlock = lBlock ^ f;\n\t            }\n\n\t            // Undo swap from last round\n\t            var t = this._lBlock;\n\t            this._lBlock = this._rBlock;\n\t            this._rBlock = t;\n\n\t            // Final permutation\n\t            exchangeLR.call(this, 1,  0x55555555);\n\t            exchangeRL.call(this, 8,  0x00ff00ff);\n\t            exchangeRL.call(this, 2,  0x33333333);\n\t            exchangeLR.call(this, 16, 0x0000ffff);\n\t            exchangeLR.call(this, 4,  0x0f0f0f0f);\n\n\t            // Set output\n\t            M[offset] = this._lBlock;\n\t            M[offset + 1] = this._rBlock;\n\t        },\n\n\t        keySize: 64/32,\n\n\t        ivSize: 64/32,\n\n\t        blockSize: 64/32\n\t    });\n\n\t    // Swap bits across the left and right words\n\t    function exchangeLR(offset, mask) {\n\t        var t = ((this._lBlock >>> offset) ^ this._rBlock) & mask;\n\t        this._rBlock ^= t;\n\t        this._lBlock ^= t << offset;\n\t    }\n\n\t    function exchangeRL(offset, mask) {\n\t        var t = ((this._rBlock >>> offset) ^ this._lBlock) & mask;\n\t        this._lBlock ^= t;\n\t        this._rBlock ^= t << offset;\n\t    }\n\n\t    /**\n\t     * Shortcut functions to the cipher's object interface.\n\t     *\n\t     * @example\n\t     *\n\t     *     var ciphertext = CryptoJS.DES.encrypt(message, key, cfg);\n\t     *     var plaintext  = CryptoJS.DES.decrypt(ciphertext, key, cfg);\n\t     */\n\t    C.DES = BlockCipher._createHelper(DES);\n\n\t    /**\n\t     * Triple-DES block cipher algorithm.\n\t     */\n\t    var TripleDES = C_algo.TripleDES = BlockCipher.extend({\n\t        _doReset: function () {\n\t            // Shortcuts\n\t            var key = this._key;\n\t            var keyWords = key.words;\n\t            // Make sure the key length is valid (64, 128 or >= 192 bit)\n\t            if (keyWords.length !== 2 && keyWords.length !== 4 && keyWords.length < 6) {\n\t                throw new Error('Invalid key length - 3DES requires the key length to be 64, 128, 192 or >192.');\n\t            }\n\n\t            // Extend the key according to the keying options defined in 3DES standard\n\t            var key1 = keyWords.slice(0, 2);\n\t            var key2 = keyWords.length < 4 ? keyWords.slice(0, 2) : keyWords.slice(2, 4);\n\t            var key3 = keyWords.length < 6 ? keyWords.slice(0, 2) : keyWords.slice(4, 6);\n\n\t            // Create DES instances\n\t            this._des1 = DES.createEncryptor(WordArray.create(key1));\n\t            this._des2 = DES.createEncryptor(WordArray.create(key2));\n\t            this._des3 = DES.createEncryptor(WordArray.create(key3));\n\t        },\n\n\t        encryptBlock: function (M, offset) {\n\t            this._des1.encryptBlock(M, offset);\n\t            this._des2.decryptBlock(M, offset);\n\t            this._des3.encryptBlock(M, offset);\n\t        },\n\n\t        decryptBlock: function (M, offset) {\n\t            this._des3.decryptBlock(M, offset);\n\t            this._des2.encryptBlock(M, offset);\n\t            this._des1.decryptBlock(M, offset);\n\t        },\n\n\t        keySize: 192/32,\n\n\t        ivSize: 64/32,\n\n\t        blockSize: 64/32\n\t    });\n\n\t    /**\n\t     * Shortcut functions to the cipher's object interface.\n\t     *\n\t     * @example\n\t     *\n\t     *     var ciphertext = CryptoJS.TripleDES.encrypt(message, key, cfg);\n\t     *     var plaintext  = CryptoJS.TripleDES.decrypt(ciphertext, key, cfg);\n\t     */\n\t    C.TripleDES = BlockCipher._createHelper(TripleDES);\n\t}());\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var StreamCipher = C_lib.StreamCipher;\n\t    var C_algo = C.algo;\n\n\t    /**\n\t     * RC4 stream cipher algorithm.\n\t     */\n\t    var RC4 = C_algo.RC4 = StreamCipher.extend({\n\t        _doReset: function () {\n\t            // Shortcuts\n\t            var key = this._key;\n\t            var keyWords = key.words;\n\t            var keySigBytes = key.sigBytes;\n\n\t            // Init sbox\n\t            var S = this._S = [];\n\t            for (var i = 0; i < 256; i++) {\n\t                S[i] = i;\n\t            }\n\n\t            // Key setup\n\t            for (var i = 0, j = 0; i < 256; i++) {\n\t                var keyByteIndex = i % keySigBytes;\n\t                var keyByte = (keyWords[keyByteIndex >>> 2] >>> (24 - (keyByteIndex % 4) * 8)) & 0xff;\n\n\t                j = (j + S[i] + keyByte) % 256;\n\n\t                // Swap\n\t                var t = S[i];\n\t                S[i] = S[j];\n\t                S[j] = t;\n\t            }\n\n\t            // Counters\n\t            this._i = this._j = 0;\n\t        },\n\n\t        _doProcessBlock: function (M, offset) {\n\t            M[offset] ^= generateKeystreamWord.call(this);\n\t        },\n\n\t        keySize: 256/32,\n\n\t        ivSize: 0\n\t    });\n\n\t    function generateKeystreamWord() {\n\t        // Shortcuts\n\t        var S = this._S;\n\t        var i = this._i;\n\t        var j = this._j;\n\n\t        // Generate keystream word\n\t        var keystreamWord = 0;\n\t        for (var n = 0; n < 4; n++) {\n\t            i = (i + 1) % 256;\n\t            j = (j + S[i]) % 256;\n\n\t            // Swap\n\t            var t = S[i];\n\t            S[i] = S[j];\n\t            S[j] = t;\n\n\t            keystreamWord |= S[(S[i] + S[j]) % 256] << (24 - n * 8);\n\t        }\n\n\t        // Update counters\n\t        this._i = i;\n\t        this._j = j;\n\n\t        return keystreamWord;\n\t    }\n\n\t    /**\n\t     * Shortcut functions to the cipher's object interface.\n\t     *\n\t     * @example\n\t     *\n\t     *     var ciphertext = CryptoJS.RC4.encrypt(message, key, cfg);\n\t     *     var plaintext  = CryptoJS.RC4.decrypt(ciphertext, key, cfg);\n\t     */\n\t    C.RC4 = StreamCipher._createHelper(RC4);\n\n\t    /**\n\t     * Modified RC4 stream cipher algorithm.\n\t     */\n\t    var RC4Drop = C_algo.RC4Drop = RC4.extend({\n\t        /**\n\t         * Configuration options.\n\t         *\n\t         * @property {number} drop The number of keystream words to drop. Default 192\n\t         */\n\t        cfg: RC4.cfg.extend({\n\t            drop: 192\n\t        }),\n\n\t        _doReset: function () {\n\t            RC4._doReset.call(this);\n\n\t            // Drop\n\t            for (var i = this.cfg.drop; i > 0; i--) {\n\t                generateKeystreamWord.call(this);\n\t            }\n\t        }\n\t    });\n\n\t    /**\n\t     * Shortcut functions to the cipher's object interface.\n\t     *\n\t     * @example\n\t     *\n\t     *     var ciphertext = CryptoJS.RC4Drop.encrypt(message, key, cfg);\n\t     *     var plaintext  = CryptoJS.RC4Drop.decrypt(ciphertext, key, cfg);\n\t     */\n\t    C.RC4Drop = StreamCipher._createHelper(RC4Drop);\n\t}());\n\n\n\t/** @preserve\n\t * Counter block mode compatible with  Dr Brian Gladman fileenc.c\n\t * derived from CryptoJS.mode.CTR\n\t * Jan Hruby jhruby.web@gmail.com\n\t */\n\tCryptoJS.mode.CTRGladman = (function () {\n\t    var CTRGladman = CryptoJS.lib.BlockCipherMode.extend();\n\n\t\tfunction incWord(word)\n\t\t{\n\t\t\tif (((word >> 24) & 0xff) === 0xff) { //overflow\n\t\t\tvar b1 = (word >> 16)&0xff;\n\t\t\tvar b2 = (word >> 8)&0xff;\n\t\t\tvar b3 = word & 0xff;\n\n\t\t\tif (b1 === 0xff) // overflow b1\n\t\t\t{\n\t\t\tb1 = 0;\n\t\t\tif (b2 === 0xff)\n\t\t\t{\n\t\t\t\tb2 = 0;\n\t\t\t\tif (b3 === 0xff)\n\t\t\t\t{\n\t\t\t\t\tb3 = 0;\n\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t{\n\t\t\t\t\t++b3;\n\t\t\t\t}\n\t\t\t}\n\t\t\telse\n\t\t\t{\n\t\t\t\t++b2;\n\t\t\t}\n\t\t\t}\n\t\t\telse\n\t\t\t{\n\t\t\t++b1;\n\t\t\t}\n\n\t\t\tword = 0;\n\t\t\tword += (b1 << 16);\n\t\t\tword += (b2 << 8);\n\t\t\tword += b3;\n\t\t\t}\n\t\t\telse\n\t\t\t{\n\t\t\tword += (0x01 << 24);\n\t\t\t}\n\t\t\treturn word;\n\t\t}\n\n\t\tfunction incCounter(counter)\n\t\t{\n\t\t\tif ((counter[0] = incWord(counter[0])) === 0)\n\t\t\t{\n\t\t\t\t// encr_data in fileenc.c from  Dr Brian Gladman's counts only with DWORD j < 8\n\t\t\t\tcounter[1] = incWord(counter[1]);\n\t\t\t}\n\t\t\treturn counter;\n\t\t}\n\n\t    var Encryptor = CTRGladman.Encryptor = CTRGladman.extend({\n\t        processBlock: function (words, offset) {\n\t            // Shortcuts\n\t            var cipher = this._cipher\n\t            var blockSize = cipher.blockSize;\n\t            var iv = this._iv;\n\t            var counter = this._counter;\n\n\t            // Generate keystream\n\t            if (iv) {\n\t                counter = this._counter = iv.slice(0);\n\n\t                // Remove IV for subsequent blocks\n\t                this._iv = undefined;\n\t            }\n\n\t\t\t\tincCounter(counter);\n\n\t\t\t\tvar keystream = counter.slice(0);\n\t            cipher.encryptBlock(keystream, 0);\n\n\t            // Encrypt\n\t            for (var i = 0; i < blockSize; i++) {\n\t                words[offset + i] ^= keystream[i];\n\t            }\n\t        }\n\t    });\n\n\t    CTRGladman.Decryptor = Encryptor;\n\n\t    return CTRGladman;\n\t}());\n\n\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var StreamCipher = C_lib.StreamCipher;\n\t    var C_algo = C.algo;\n\n\t    // Reusable objects\n\t    var S  = [];\n\t    var C_ = [];\n\t    var G  = [];\n\n\t    /**\n\t     * Rabbit stream cipher algorithm\n\t     */\n\t    var Rabbit = C_algo.Rabbit = StreamCipher.extend({\n\t        _doReset: function () {\n\t            // Shortcuts\n\t            var K = this._key.words;\n\t            var iv = this.cfg.iv;\n\n\t            // Swap endian\n\t            for (var i = 0; i < 4; i++) {\n\t                K[i] = (((K[i] << 8)  | (K[i] >>> 24)) & 0x00ff00ff) |\n\t                       (((K[i] << 24) | (K[i] >>> 8))  & 0xff00ff00);\n\t            }\n\n\t            // Generate initial state values\n\t            var X = this._X = [\n\t                K[0], (K[3] << 16) | (K[2] >>> 16),\n\t                K[1], (K[0] << 16) | (K[3] >>> 16),\n\t                K[2], (K[1] << 16) | (K[0] >>> 16),\n\t                K[3], (K[2] << 16) | (K[1] >>> 16)\n\t            ];\n\n\t            // Generate initial counter values\n\t            var C = this._C = [\n\t                (K[2] << 16) | (K[2] >>> 16), (K[0] & 0xffff0000) | (K[1] & 0x0000ffff),\n\t                (K[3] << 16) | (K[3] >>> 16), (K[1] & 0xffff0000) | (K[2] & 0x0000ffff),\n\t                (K[0] << 16) | (K[0] >>> 16), (K[2] & 0xffff0000) | (K[3] & 0x0000ffff),\n\t                (K[1] << 16) | (K[1] >>> 16), (K[3] & 0xffff0000) | (K[0] & 0x0000ffff)\n\t            ];\n\n\t            // Carry bit\n\t            this._b = 0;\n\n\t            // Iterate the system four times\n\t            for (var i = 0; i < 4; i++) {\n\t                nextState.call(this);\n\t            }\n\n\t            // Modify the counters\n\t            for (var i = 0; i < 8; i++) {\n\t                C[i] ^= X[(i + 4) & 7];\n\t            }\n\n\t            // IV setup\n\t            if (iv) {\n\t                // Shortcuts\n\t                var IV = iv.words;\n\t                var IV_0 = IV[0];\n\t                var IV_1 = IV[1];\n\n\t                // Generate four subvectors\n\t                var i0 = (((IV_0 << 8) | (IV_0 >>> 24)) & 0x00ff00ff) | (((IV_0 << 24) | (IV_0 >>> 8)) & 0xff00ff00);\n\t                var i2 = (((IV_1 << 8) | (IV_1 >>> 24)) & 0x00ff00ff) | (((IV_1 << 24) | (IV_1 >>> 8)) & 0xff00ff00);\n\t                var i1 = (i0 >>> 16) | (i2 & 0xffff0000);\n\t                var i3 = (i2 << 16)  | (i0 & 0x0000ffff);\n\n\t                // Modify counter values\n\t                C[0] ^= i0;\n\t                C[1] ^= i1;\n\t                C[2] ^= i2;\n\t                C[3] ^= i3;\n\t                C[4] ^= i0;\n\t                C[5] ^= i1;\n\t                C[6] ^= i2;\n\t                C[7] ^= i3;\n\n\t                // Iterate the system four times\n\t                for (var i = 0; i < 4; i++) {\n\t                    nextState.call(this);\n\t                }\n\t            }\n\t        },\n\n\t        _doProcessBlock: function (M, offset) {\n\t            // Shortcut\n\t            var X = this._X;\n\n\t            // Iterate the system\n\t            nextState.call(this);\n\n\t            // Generate four keystream words\n\t            S[0] = X[0] ^ (X[5] >>> 16) ^ (X[3] << 16);\n\t            S[1] = X[2] ^ (X[7] >>> 16) ^ (X[5] << 16);\n\t            S[2] = X[4] ^ (X[1] >>> 16) ^ (X[7] << 16);\n\t            S[3] = X[6] ^ (X[3] >>> 16) ^ (X[1] << 16);\n\n\t            for (var i = 0; i < 4; i++) {\n\t                // Swap endian\n\t                S[i] = (((S[i] << 8)  | (S[i] >>> 24)) & 0x00ff00ff) |\n\t                       (((S[i] << 24) | (S[i] >>> 8))  & 0xff00ff00);\n\n\t                // Encrypt\n\t                M[offset + i] ^= S[i];\n\t            }\n\t        },\n\n\t        blockSize: 128/32,\n\n\t        ivSize: 64/32\n\t    });\n\n\t    function nextState() {\n\t        // Shortcuts\n\t        var X = this._X;\n\t        var C = this._C;\n\n\t        // Save old counter values\n\t        for (var i = 0; i < 8; i++) {\n\t            C_[i] = C[i];\n\t        }\n\n\t        // Calculate new counter values\n\t        C[0] = (C[0] + 0x4d34d34d + this._b) | 0;\n\t        C[1] = (C[1] + 0xd34d34d3 + ((C[0] >>> 0) < (C_[0] >>> 0) ? 1 : 0)) | 0;\n\t        C[2] = (C[2] + 0x34d34d34 + ((C[1] >>> 0) < (C_[1] >>> 0) ? 1 : 0)) | 0;\n\t        C[3] = (C[3] + 0x4d34d34d + ((C[2] >>> 0) < (C_[2] >>> 0) ? 1 : 0)) | 0;\n\t        C[4] = (C[4] + 0xd34d34d3 + ((C[3] >>> 0) < (C_[3] >>> 0) ? 1 : 0)) | 0;\n\t        C[5] = (C[5] + 0x34d34d34 + ((C[4] >>> 0) < (C_[4] >>> 0) ? 1 : 0)) | 0;\n\t        C[6] = (C[6] + 0x4d34d34d + ((C[5] >>> 0) < (C_[5] >>> 0) ? 1 : 0)) | 0;\n\t        C[7] = (C[7] + 0xd34d34d3 + ((C[6] >>> 0) < (C_[6] >>> 0) ? 1 : 0)) | 0;\n\t        this._b = (C[7] >>> 0) < (C_[7] >>> 0) ? 1 : 0;\n\n\t        // Calculate the g-values\n\t        for (var i = 0; i < 8; i++) {\n\t            var gx = X[i] + C[i];\n\n\t            // Construct high and low argument for squaring\n\t            var ga = gx & 0xffff;\n\t            var gb = gx >>> 16;\n\n\t            // Calculate high and low result of squaring\n\t            var gh = ((((ga * ga) >>> 17) + ga * gb) >>> 15) + gb * gb;\n\t            var gl = (((gx & 0xffff0000) * gx) | 0) + (((gx & 0x0000ffff) * gx) | 0);\n\n\t            // High XOR low\n\t            G[i] = gh ^ gl;\n\t        }\n\n\t        // Calculate new state values\n\t        X[0] = (G[0] + ((G[7] << 16) | (G[7] >>> 16)) + ((G[6] << 16) | (G[6] >>> 16))) | 0;\n\t        X[1] = (G[1] + ((G[0] << 8)  | (G[0] >>> 24)) + G[7]) | 0;\n\t        X[2] = (G[2] + ((G[1] << 16) | (G[1] >>> 16)) + ((G[0] << 16) | (G[0] >>> 16))) | 0;\n\t        X[3] = (G[3] + ((G[2] << 8)  | (G[2] >>> 24)) + G[1]) | 0;\n\t        X[4] = (G[4] + ((G[3] << 16) | (G[3] >>> 16)) + ((G[2] << 16) | (G[2] >>> 16))) | 0;\n\t        X[5] = (G[5] + ((G[4] << 8)  | (G[4] >>> 24)) + G[3]) | 0;\n\t        X[6] = (G[6] + ((G[5] << 16) | (G[5] >>> 16)) + ((G[4] << 16) | (G[4] >>> 16))) | 0;\n\t        X[7] = (G[7] + ((G[6] << 8)  | (G[6] >>> 24)) + G[5]) | 0;\n\t    }\n\n\t    /**\n\t     * Shortcut functions to the cipher's object interface.\n\t     *\n\t     * @example\n\t     *\n\t     *     var ciphertext = CryptoJS.Rabbit.encrypt(message, key, cfg);\n\t     *     var plaintext  = CryptoJS.Rabbit.decrypt(ciphertext, key, cfg);\n\t     */\n\t    C.Rabbit = StreamCipher._createHelper(Rabbit);\n\t}());\n\n\n\t/**\n\t * Counter block mode.\n\t */\n\tCryptoJS.mode.CTR = (function () {\n\t    var CTR = CryptoJS.lib.BlockCipherMode.extend();\n\n\t    var Encryptor = CTR.Encryptor = CTR.extend({\n\t        processBlock: function (words, offset) {\n\t            // Shortcuts\n\t            var cipher = this._cipher\n\t            var blockSize = cipher.blockSize;\n\t            var iv = this._iv;\n\t            var counter = this._counter;\n\n\t            // Generate keystream\n\t            if (iv) {\n\t                counter = this._counter = iv.slice(0);\n\n\t                // Remove IV for subsequent blocks\n\t                this._iv = undefined;\n\t            }\n\t            var keystream = counter.slice(0);\n\t            cipher.encryptBlock(keystream, 0);\n\n\t            // Increment counter\n\t            counter[blockSize - 1] = (counter[blockSize - 1] + 1) | 0\n\n\t            // Encrypt\n\t            for (var i = 0; i < blockSize; i++) {\n\t                words[offset + i] ^= keystream[i];\n\t            }\n\t        }\n\t    });\n\n\t    CTR.Decryptor = Encryptor;\n\n\t    return CTR;\n\t}());\n\n\n\t(function () {\n\t    // Shortcuts\n\t    var C = CryptoJS;\n\t    var C_lib = C.lib;\n\t    var StreamCipher = C_lib.StreamCipher;\n\t    var C_algo = C.algo;\n\n\t    // Reusable objects\n\t    var S  = [];\n\t    var C_ = [];\n\t    var G  = [];\n\n\t    /**\n\t     * Rabbit stream cipher algorithm.\n\t     *\n\t     * This is a legacy version that neglected to convert the key to little-endian.\n\t     * This error doesn't affect the cipher's security,\n\t     * but it does affect its compatibility with other implementations.\n\t     */\n\t    var RabbitLegacy = C_algo.RabbitLegacy = StreamCipher.extend({\n\t        _doReset: function () {\n\t            // Shortcuts\n\t            var K = this._key.words;\n\t            var iv = this.cfg.iv;\n\n\t            // Generate initial state values\n\t            var X = this._X = [\n\t                K[0], (K[3] << 16) | (K[2] >>> 16),\n\t                K[1], (K[0] << 16) | (K[3] >>> 16),\n\t                K[2], (K[1] << 16) | (K[0] >>> 16),\n\t                K[3], (K[2] << 16) | (K[1] >>> 16)\n\t            ];\n\n\t            // Generate initial counter values\n\t            var C = this._C = [\n\t                (K[2] << 16) | (K[2] >>> 16), (K[0] & 0xffff0000) | (K[1] & 0x0000ffff),\n\t                (K[3] << 16) | (K[3] >>> 16), (K[1] & 0xffff0000) | (K[2] & 0x0000ffff),\n\t                (K[0] << 16) | (K[0] >>> 16), (K[2] & 0xffff0000) | (K[3] & 0x0000ffff),\n\t                (K[1] << 16) | (K[1] >>> 16), (K[3] & 0xffff0000) | (K[0] & 0x0000ffff)\n\t            ];\n\n\t            // Carry bit\n\t            this._b = 0;\n\n\t            // Iterate the system four times\n\t            for (var i = 0; i < 4; i++) {\n\t                nextState.call(this);\n\t            }\n\n\t            // Modify the counters\n\t            for (var i = 0; i < 8; i++) {\n\t                C[i] ^= X[(i + 4) & 7];\n\t            }\n\n\t            // IV setup\n\t            if (iv) {\n\t                // Shortcuts\n\t                var IV = iv.words;\n\t                var IV_0 = IV[0];\n\t                var IV_1 = IV[1];\n\n\t                // Generate four subvectors\n\t                var i0 = (((IV_0 << 8) | (IV_0 >>> 24)) & 0x00ff00ff) | (((IV_0 << 24) | (IV_0 >>> 8)) & 0xff00ff00);\n\t                var i2 = (((IV_1 << 8) | (IV_1 >>> 24)) & 0x00ff00ff) | (((IV_1 << 24) | (IV_1 >>> 8)) & 0xff00ff00);\n\t                var i1 = (i0 >>> 16) | (i2 & 0xffff0000);\n\t                var i3 = (i2 << 16)  | (i0 & 0x0000ffff);\n\n\t                // Modify counter values\n\t                C[0] ^= i0;\n\t                C[1] ^= i1;\n\t                C[2] ^= i2;\n\t                C[3] ^= i3;\n\t                C[4] ^= i0;\n\t                C[5] ^= i1;\n\t                C[6] ^= i2;\n\t                C[7] ^= i3;\n\n\t                // Iterate the system four times\n\t                for (var i = 0; i < 4; i++) {\n\t                    nextState.call(this);\n\t                }\n\t            }\n\t        },\n\n\t        _doProcessBlock: function (M, offset) {\n\t            // Shortcut\n\t            var X = this._X;\n\n\t            // Iterate the system\n\t            nextState.call(this);\n\n\t            // Generate four keystream words\n\t            S[0] = X[0] ^ (X[5] >>> 16) ^ (X[3] << 16);\n\t            S[1] = X[2] ^ (X[7] >>> 16) ^ (X[5] << 16);\n\t            S[2] = X[4] ^ (X[1] >>> 16) ^ (X[7] << 16);\n\t            S[3] = X[6] ^ (X[3] >>> 16) ^ (X[1] << 16);\n\n\t            for (var i = 0; i < 4; i++) {\n\t                // Swap endian\n\t                S[i] = (((S[i] << 8)  | (S[i] >>> 24)) & 0x00ff00ff) |\n\t                       (((S[i] << 24) | (S[i] >>> 8))  & 0xff00ff00);\n\n\t                // Encrypt\n\t                M[offset + i] ^= S[i];\n\t            }\n\t        },\n\n\t        blockSize: 128/32,\n\n\t        ivSize: 64/32\n\t    });\n\n\t    function nextState() {\n\t        // Shortcuts\n\t        var X = this._X;\n\t        var C = this._C;\n\n\t        // Save old counter values\n\t        for (var i = 0; i < 8; i++) {\n\t            C_[i] = C[i];\n\t        }\n\n\t        // Calculate new counter values\n\t        C[0] = (C[0] + 0x4d34d34d + this._b) | 0;\n\t        C[1] = (C[1] + 0xd34d34d3 + ((C[0] >>> 0) < (C_[0] >>> 0) ? 1 : 0)) | 0;\n\t        C[2] = (C[2] + 0x34d34d34 + ((C[1] >>> 0) < (C_[1] >>> 0) ? 1 : 0)) | 0;\n\t        C[3] = (C[3] + 0x4d34d34d + ((C[2] >>> 0) < (C_[2] >>> 0) ? 1 : 0)) | 0;\n\t        C[4] = (C[4] + 0xd34d34d3 + ((C[3] >>> 0) < (C_[3] >>> 0) ? 1 : 0)) | 0;\n\t        C[5] = (C[5] + 0x34d34d34 + ((C[4] >>> 0) < (C_[4] >>> 0) ? 1 : 0)) | 0;\n\t        C[6] = (C[6] + 0x4d34d34d + ((C[5] >>> 0) < (C_[5] >>> 0) ? 1 : 0)) | 0;\n\t        C[7] = (C[7] + 0xd34d34d3 + ((C[6] >>> 0) < (C_[6] >>> 0) ? 1 : 0)) | 0;\n\t        this._b = (C[7] >>> 0) < (C_[7] >>> 0) ? 1 : 0;\n\n\t        // Calculate the g-values\n\t        for (var i = 0; i < 8; i++) {\n\t            var gx = X[i] + C[i];\n\n\t            // Construct high and low argument for squaring\n\t            var ga = gx & 0xffff;\n\t            var gb = gx >>> 16;\n\n\t            // Calculate high and low result of squaring\n\t            var gh = ((((ga * ga) >>> 17) + ga * gb) >>> 15) + gb * gb;\n\t            var gl = (((gx & 0xffff0000) * gx) | 0) + (((gx & 0x0000ffff) * gx) | 0);\n\n\t            // High XOR low\n\t            G[i] = gh ^ gl;\n\t        }\n\n\t        // Calculate new state values\n\t        X[0] = (G[0] + ((G[7] << 16) | (G[7] >>> 16)) + ((G[6] << 16) | (G[6] >>> 16))) | 0;\n\t        X[1] = (G[1] + ((G[0] << 8)  | (G[0] >>> 24)) + G[7]) | 0;\n\t        X[2] = (G[2] + ((G[1] << 16) | (G[1] >>> 16)) + ((G[0] << 16) | (G[0] >>> 16))) | 0;\n\t        X[3] = (G[3] + ((G[2] << 8)  | (G[2] >>> 24)) + G[1]) | 0;\n\t        X[4] = (G[4] + ((G[3] << 16) | (G[3] >>> 16)) + ((G[2] << 16) | (G[2] >>> 16))) | 0;\n\t        X[5] = (G[5] + ((G[4] << 8)  | (G[4] >>> 24)) + G[3]) | 0;\n\t        X[6] = (G[6] + ((G[5] << 16) | (G[5] >>> 16)) + ((G[4] << 16) | (G[4] >>> 16))) | 0;\n\t        X[7] = (G[7] + ((G[6] << 8)  | (G[6] >>> 24)) + G[5]) | 0;\n\t    }\n\n\t    /**\n\t     * Shortcut functions to the cipher's object interface.\n\t     *\n\t     * @example\n\t     *\n\t     *     var ciphertext = CryptoJS.RabbitLegacy.encrypt(message, key, cfg);\n\t     *     var plaintext  = CryptoJS.RabbitLegacy.decrypt(ciphertext, key, cfg);\n\t     */\n\t    C.RabbitLegacy = StreamCipher._createHelper(RabbitLegacy);\n\t}());\n\n\n\t/**\n\t * Zero padding strategy.\n\t */\n\tCryptoJS.pad.ZeroPadding = {\n\t    pad: function (data, blockSize) {\n\t        // Shortcut\n\t        var blockSizeBytes = blockSize * 4;\n\n\t        // Pad\n\t        data.clamp();\n\t        data.sigBytes += blockSizeBytes - ((data.sigBytes % blockSizeBytes) || blockSizeBytes);\n\t    },\n\n\t    unpad: function (data) {\n\t        // Shortcut\n\t        var dataWords = data.words;\n\n\t        // Unpad\n\t        var i = data.sigBytes - 1;\n\t        for (var i = data.sigBytes - 1; i >= 0; i--) {\n\t            if (((dataWords[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff)) {\n\t                data.sigBytes = i + 1;\n\t                break;\n\t            }\n\t        }\n\t    }\n\t};\n\n\n\treturn CryptoJS;\n\n}));"],"sourceRoot":"/source/"}