From 5b59842f7b280852940a8a1ea274b807349c5c2d Mon Sep 17 00:00:00 2001 From: Greg Werner Date: Tue, 15 Dec 2020 17:12:00 -0500 Subject: [PATCH] fix: Remove timestamp's timezone from the get_autograded_students conditional (#21) --- dev-requirements.txt | 3 +- .../versions/167914646830_added_task_cells.py | 8 +- ...0b_added_course_table_and_relationships.py | 8 +- nbgrader/apps/api.py | 2 +- nbgrader/preprocessors/clearsolutions.py | 1 + .../static/components/jquery/README.md | 2 + .../static/components/jquery/bower.json | 23 +- .../static/components/jquery/component.json | 33 +- .../static/components/jquery/composer.json | 11 +- .../static/components/jquery/jquery.js | 10683 +++++++++------- .../static/components/jquery/jquery.min.js | 6 +- .../static/components/jquery/jquery.min.map | 2 +- .../static/components/jquery/package.json | 58 +- .../formgrader/static/js/formgrade.js | 2 +- .../static/js/gradebook_assignments.js | 2 +- .../js/gradebook_notebook_submissions.js | 2 +- .../static/js/gradebook_notebooks.js | 2 +- .../static/js/manage_assignments.js | 19 +- .../formgrader/static/js/manage_students.js | 22 +- .../static/js/manage_students_assignments.js | 2 +- .../manage_students_notebook_submissions.js | 2 +- .../static/js/manage_submissions.js | 2 +- nbgrader/utils.py | 2 +- setup.py | 4 +- 24 files changed, 6298 insertions(+), 4603 deletions(-) diff --git a/dev-requirements.txt b/dev-requirements.txt index 3d35c2ed5..08b63721c 100644 --- a/dev-requirements.txt +++ b/dev-requirements.txt @@ -1,4 +1,4 @@ -pytest>=4.5 +pytest>=4.5,<6.0.0 pytest-cov pytest-rerunfailures pytest-xdist==1.34.0 @@ -12,4 +12,3 @@ codecov nbval requests-mock wheel - diff --git a/nbgrader/alembic/versions/167914646830_added_task_cells.py b/nbgrader/alembic/versions/167914646830_added_task_cells.py index 8b62e0eac..b7aa5502e 100644 --- a/nbgrader/alembic/versions/167914646830_added_task_cells.py +++ b/nbgrader/alembic/versions/167914646830_added_task_cells.py @@ -17,9 +17,13 @@ def _get_or_create_table(*args): - try: + ctx = op.get_context() + con = op.get_bind() + table_exists = ctx.dialect.has_table(con.engine, args[0]) + + if not table_exists: table = op.create_table(*args) - except sa.exc.OperationalError: + else: table = sa.sql.table(*args) return table diff --git a/nbgrader/alembic/versions/e43177bfe90b_added_course_table_and_relationships.py b/nbgrader/alembic/versions/e43177bfe90b_added_course_table_and_relationships.py index 015d7c81b..4bcac630b 100644 --- a/nbgrader/alembic/versions/e43177bfe90b_added_course_table_and_relationships.py +++ b/nbgrader/alembic/versions/e43177bfe90b_added_course_table_and_relationships.py @@ -17,9 +17,13 @@ def _get_or_create_table(*args): - try: + ctx = op.get_context() + con = op.get_bind() + table_exists = ctx.dialect.has_table(con.engine, args[0]) + + if not table_exists: table = op.create_table(*args) - except sa.exc.OperationalError: + else: table = sa.sql.table(*args) return table diff --git a/nbgrader/apps/api.py b/nbgrader/apps/api.py index d044cd9ab..19e957877 100644 --- a/nbgrader/apps/api.py +++ b/nbgrader/apps/api.py @@ -287,7 +287,7 @@ def get_autograded_students(self, assignment_id): # newer than the autograded timestamp submitted_timestamp = self.get_submitted_timestamp(assignment_id, student_id) autograded_timestamp = ag_timestamps[student_id] - if submitted_timestamp != autograded_timestamp: + if submitted_timestamp != autograded_timestamp.replace(tzinfo=None): continue students.add(student_id) diff --git a/nbgrader/preprocessors/clearsolutions.py b/nbgrader/preprocessors/clearsolutions.py index d96fca788..390f891fe 100644 --- a/nbgrader/preprocessors/clearsolutions.py +++ b/nbgrader/preprocessors/clearsolutions.py @@ -17,6 +17,7 @@ class ClearSolutions(NbGraderPreprocessor): dict(python="# YOUR CODE HERE\nraise NotImplementedError()", matlab="% YOUR CODE HERE\nerror('No Answer Given!')", octave="% YOUR CODE HERE\nerror('No Answer Given!')", + sas="/* YOUR CODE HERE */\n %notImplemented;", java="// YOUR CODE HERE"), help="The code snippet that will replace code solutions" ).tag(config=True) diff --git a/nbgrader/server_extensions/formgrader/static/components/jquery/README.md b/nbgrader/server_extensions/formgrader/static/components/jquery/README.md index e39a59ea2..92dfef0e6 100644 --- a/nbgrader/server_extensions/formgrader/static/components/jquery/README.md +++ b/nbgrader/server_extensions/formgrader/static/components/jquery/README.md @@ -3,6 +3,8 @@ jQuery Component Shim [repository](https://github.com/components/jquery) for the [jQuery](http://jquery.com). +If you're looking for jquery-migrate: It got it's [own repository](https://github.com/components/jquery-migrate) since jQuery v3.0.0. + Package Managers ---------------- diff --git a/nbgrader/server_extensions/formgrader/static/components/jquery/bower.json b/nbgrader/server_extensions/formgrader/static/components/jquery/bower.json index b3d7713ba..2f0e2e16e 100644 --- a/nbgrader/server_extensions/formgrader/static/components/jquery/bower.json +++ b/nbgrader/server_extensions/formgrader/static/components/jquery/bower.json @@ -1,11 +1,16 @@ { - "name": "jquery", - "version": "2.1.3", - "description": "jQuery component", - "keywords": [ - "jquery", - "component" - ], - "main": "jquery.js", - "license": "MIT" + "name": "jquery", + "version": "3.5.1", + "description": "jQuery component", + "license": "MIT", + "keywords": [ + "jquery", + "component" + ], + "main": "jquery.js", + "ignore": [ + "component.json", + "package.json", + "composer.json" + ] } diff --git a/nbgrader/server_extensions/formgrader/static/components/jquery/component.json b/nbgrader/server_extensions/formgrader/static/components/jquery/component.json index 6614f53fb..0fa35fdea 100644 --- a/nbgrader/server_extensions/formgrader/static/components/jquery/component.json +++ b/nbgrader/server_extensions/formgrader/static/components/jquery/component.json @@ -1,15 +1,22 @@ { - "name": "jquery", - "repo": "components/jquery", - "version": "2.1.3", - "description": "jQuery component", - "keywords": [ - "jquery", - "component" - ], - "main": "jquery.js", - "scripts": [ - "jquery.js" - ], - "license": "MIT" + "name": "jquery", + "repo": "components/jquery", + "version": "3.5.1", + "description": "jQuery component", + "license": "MIT", + "keywords": [ + "jquery", + "component" + ], + "main": "jquery.js", + "scripts": [ + "jquery.js", + "jquery.min.js", + "jquery.slim.js", + "jquery.slim.min.js" + ], + "files": [ + "jquery.min.map", + "jquery.slim.min.map" + ] } diff --git a/nbgrader/server_extensions/formgrader/static/components/jquery/composer.json b/nbgrader/server_extensions/formgrader/static/components/jquery/composer.json index 9f92883ec..8a779adb8 100644 --- a/nbgrader/server_extensions/formgrader/static/components/jquery/composer.json +++ b/nbgrader/server_extensions/formgrader/static/components/jquery/composer.json @@ -6,15 +6,15 @@ "license": "MIT", "support": { "irc": "irc://irc.freenode.org/jquery", - "issues": "http://bugs.jquery.com", + "issues": "https://github.com/jquery/jquery/issues", "forum": "http://forum.jquery.com", "wiki": "http://docs.jquery.com/", "source": "https://github.com/jquery/jquery" }, "authors": [ { - "name": "John Resig", - "email": "jeresig@gmail.com" + "name": "JS Foundation and other contributors", + "url": "https://github.com/jquery/jquery/blob/master/AUTHORS.txt" } ], "extra": { @@ -25,8 +25,9 @@ "files": [ "jquery.min.js", "jquery.min.map", - "jquery-migrate.js", - "jquery-migrate.min.js" + "jquery.slim.js", + "jquery.slim.min.js", + "jquery.slim.min.map" ] } } diff --git a/nbgrader/server_extensions/formgrader/static/components/jquery/jquery.js b/nbgrader/server_extensions/formgrader/static/components/jquery/jquery.js index 79d631ff4..50937333b 100644 --- a/nbgrader/server_extensions/formgrader/static/components/jquery/jquery.js +++ b/nbgrader/server_extensions/formgrader/static/components/jquery/jquery.js @@ -1,20 +1,22 @@ /*! - * jQuery JavaScript Library v2.1.3 - * http://jquery.com/ + * jQuery JavaScript Library v3.5.1 + * https://jquery.com/ * * Includes Sizzle.js - * http://sizzlejs.com/ + * https://sizzlejs.com/ * - * Copyright 2005, 2014 jQuery Foundation, Inc. and other contributors + * Copyright JS Foundation and other contributors * Released under the MIT license - * http://jquery.org/license + * https://jquery.org/license * - * Date: 2014-12-18T15:11Z + * Date: 2020-05-04T22:49Z */ +( function( global, factory ) { -(function( global, factory ) { + "use strict"; if ( typeof module === "object" && typeof module.exports === "object" ) { + // For CommonJS and CommonJS-like environments where a proper `window` // is present, execute the factory and get jQuery. // For environments that do not have a `window` with a `document` @@ -35,19 +37,26 @@ } // Pass this if window is not defined yet -}(typeof window !== "undefined" ? window : this, function( window, noGlobal ) { +} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) { -// Support: Firefox 18+ -// Can't be in strict mode, several libs including ASP.NET trace -// the stack via arguments.caller.callee and Firefox dies if -// you try to trace through "use strict" call chains. (#13335) -// +// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1 +// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode +// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common +// enough that all such attempts are guarded in a try block. +"use strict"; var arr = []; +var getProto = Object.getPrototypeOf; + var slice = arr.slice; -var concat = arr.concat; +var flat = arr.flat ? function( array ) { + return arr.flat.call( array ); +} : function( array ) { + return arr.concat.apply( [], array ); +}; + var push = arr.push; @@ -59,45 +68,102 @@ var toString = class2type.toString; var hasOwn = class2type.hasOwnProperty; +var fnToString = hasOwn.toString; + +var ObjectFunctionString = fnToString.call( Object ); + var support = {}; +var isFunction = function isFunction( obj ) { + + // Support: Chrome <=57, Firefox <=52 + // In some browsers, typeof returns "function" for HTML elements + // (i.e., `typeof document.createElement( "object" ) === "function"`). + // We don't want to classify *any* DOM node as a function. + return typeof obj === "function" && typeof obj.nodeType !== "number"; + }; + + +var isWindow = function isWindow( obj ) { + return obj != null && obj === obj.window; + }; + + +var document = window.document; + + + + var preservedScriptAttributes = { + type: true, + src: true, + nonce: true, + noModule: true + }; + + function DOMEval( code, node, doc ) { + doc = doc || document; + + var i, val, + script = doc.createElement( "script" ); + + script.text = code; + if ( node ) { + for ( i in preservedScriptAttributes ) { + + // Support: Firefox 64+, Edge 18+ + // Some browsers don't support the "nonce" property on scripts. + // On the other hand, just using `getAttribute` is not enough as + // the `nonce` attribute is reset to an empty string whenever it + // becomes browsing-context connected. + // See https://github.com/whatwg/html/issues/2369 + // See https://html.spec.whatwg.org/#nonce-attributes + // The `node.getAttribute` check was added for the sake of + // `jQuery.globalEval` so that it can fake a nonce-containing node + // via an object. + val = node[ i ] || node.getAttribute && node.getAttribute( i ); + if ( val ) { + script.setAttribute( i, val ); + } + } + } + doc.head.appendChild( script ).parentNode.removeChild( script ); + } + + +function toType( obj ) { + if ( obj == null ) { + return obj + ""; + } + + // Support: Android <=2.3 only (functionish RegExp) + return typeof obj === "object" || typeof obj === "function" ? + class2type[ toString.call( obj ) ] || "object" : + typeof obj; +} +/* global Symbol */ +// Defining this global in .eslintrc.json would create a danger of using the global +// unguarded in another place, it seems safer to define global only for this module -var - // Use the correct document accordingly with window argument (sandbox) - document = window.document, - version = "2.1.3", +var + version = "3.5.1", // Define a local copy of jQuery jQuery = function( selector, context ) { + // The jQuery object is actually just the init constructor 'enhanced' // Need init if jQuery is called (just allow error to be thrown if not included) return new jQuery.fn.init( selector, context ); - }, - - // Support: Android<4.1 - // Make sure we trim BOM and NBSP - rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, - - // Matches dashed string for camelizing - rmsPrefix = /^-ms-/, - rdashAlpha = /-([\da-z])/gi, - - // Used by jQuery.camelCase as callback to replace() - fcamelCase = function( all, letter ) { - return letter.toUpperCase(); }; jQuery.fn = jQuery.prototype = { + // The current version of jQuery being used jquery: version, constructor: jQuery, - // Start with an empty selector - selector: "", - // The default length of a jQuery object is 0 length: 0, @@ -108,13 +174,14 @@ jQuery.fn = jQuery.prototype = { // Get the Nth element in the matched element set OR // Get the whole matched element set as a clean array get: function( num ) { - return num != null ? - // Return just the one element from the set - ( num < 0 ? this[ num + this.length ] : this[ num ] ) : + // Return all the elements in a clean array + if ( num == null ) { + return slice.call( this ); + } - // Return all the elements in a clean array - slice.call( this ); + // Return just the one element from the set + return num < 0 ? this[ num + this.length ] : this[ num ]; }, // Take an array of elements and push it onto the stack @@ -126,23 +193,20 @@ jQuery.fn = jQuery.prototype = { // Add the old object onto the stack (as a reference) ret.prevObject = this; - ret.context = this.context; // Return the newly-formed element set return ret; }, // Execute a callback for every element in the matched set. - // (You can seed the arguments with an array of args, but this is - // only used internally.) - each: function( callback, args ) { - return jQuery.each( this, callback, args ); + each: function( callback ) { + return jQuery.each( this, callback ); }, map: function( callback ) { - return this.pushStack( jQuery.map(this, function( elem, i ) { + return this.pushStack( jQuery.map( this, function( elem, i ) { return callback.call( elem, i, elem ); - })); + } ) ); }, slice: function() { @@ -157,14 +221,26 @@ jQuery.fn = jQuery.prototype = { return this.eq( -1 ); }, + even: function() { + return this.pushStack( jQuery.grep( this, function( _elem, i ) { + return ( i + 1 ) % 2; + } ) ); + }, + + odd: function() { + return this.pushStack( jQuery.grep( this, function( _elem, i ) { + return i % 2; + } ) ); + }, + eq: function( i ) { var len = this.length, j = +i + ( i < 0 ? len : 0 ); - return this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] ); + return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] ); }, end: function() { - return this.prevObject || this.constructor(null); + return this.prevObject || this.constructor(); }, // For internal use only. @@ -176,7 +252,7 @@ jQuery.fn = jQuery.prototype = { jQuery.extend = jQuery.fn.extend = function() { var options, name, src, copy, copyIsArray, clone, - target = arguments[0] || {}, + target = arguments[ 0 ] || {}, i = 1, length = arguments.length, deep = false; @@ -191,7 +267,7 @@ jQuery.extend = jQuery.fn.extend = function() { } // Handle case when target is a string or something (possible in deep copy) - if ( typeof target !== "object" && !jQuery.isFunction(target) ) { + if ( typeof target !== "object" && !isFunction( target ) ) { target = {}; } @@ -202,27 +278,34 @@ jQuery.extend = jQuery.fn.extend = function() { } for ( ; i < length; i++ ) { + // Only deal with non-null/undefined values - if ( (options = arguments[ i ]) != null ) { + if ( ( options = arguments[ i ] ) != null ) { + // Extend the base object for ( name in options ) { - src = target[ name ]; copy = options[ name ]; + // Prevent Object.prototype pollution // Prevent never-ending loop - if ( target === copy ) { + if ( name === "__proto__" || target === copy ) { continue; } // Recurse if we're merging plain objects or arrays - if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) { - if ( copyIsArray ) { - copyIsArray = false; - clone = src && jQuery.isArray(src) ? src : []; - + if ( deep && copy && ( jQuery.isPlainObject( copy ) || + ( copyIsArray = Array.isArray( copy ) ) ) ) { + src = target[ name ]; + + // Ensure proper type for the source value + if ( copyIsArray && !Array.isArray( src ) ) { + clone = []; + } else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) { + clone = {}; } else { - clone = src && jQuery.isPlainObject(src) ? src : {}; + clone = src; } + copyIsArray = false; // Never move original objects, clone them target[ name ] = jQuery.extend( deep, clone, copy ); @@ -239,7 +322,8 @@ jQuery.extend = jQuery.fn.extend = function() { return target; }; -jQuery.extend({ +jQuery.extend( { + // Unique for each copy of jQuery on the page expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ), @@ -252,138 +336,56 @@ jQuery.extend({ noop: function() {}, - isFunction: function( obj ) { - return jQuery.type(obj) === "function"; - }, - - isArray: Array.isArray, - - isWindow: function( obj ) { - return obj != null && obj === obj.window; - }, - - isNumeric: function( obj ) { - // parseFloat NaNs numeric-cast false positives (null|true|false|"") - // ...but misinterprets leading-number strings, particularly hex literals ("0x...") - // subtraction forces infinities to NaN - // adding 1 corrects loss of precision from parseFloat (#15100) - return !jQuery.isArray( obj ) && (obj - parseFloat( obj ) + 1) >= 0; - }, - isPlainObject: function( obj ) { - // Not plain objects: - // - Any object or value whose internal [[Class]] property is not "[object Object]" - // - DOM nodes - // - window - if ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) { + var proto, Ctor; + + // Detect obvious negatives + // Use toString instead of jQuery.type to catch host objects + if ( !obj || toString.call( obj ) !== "[object Object]" ) { return false; } - if ( obj.constructor && - !hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) { - return false; + proto = getProto( obj ); + + // Objects with no prototype (e.g., `Object.create( null )`) are plain + if ( !proto ) { + return true; } - // If the function hasn't returned already, we're confident that - // |obj| is a plain object, created by {} or constructed with new Object - return true; + // Objects with prototype are plain iff they were constructed by a global Object function + Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor; + return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString; }, isEmptyObject: function( obj ) { var name; + for ( name in obj ) { return false; } return true; }, - type: function( obj ) { - if ( obj == null ) { - return obj + ""; - } - // Support: Android<4.0, iOS<6 (functionish RegExp) - return typeof obj === "object" || typeof obj === "function" ? - class2type[ toString.call(obj) ] || "object" : - typeof obj; - }, - - // Evaluates a script in a global context - globalEval: function( code ) { - var script, - indirect = eval; - - code = jQuery.trim( code ); - - if ( code ) { - // If the code includes a valid, prologue position - // strict mode pragma, execute code by injecting a - // script tag into the document. - if ( code.indexOf("use strict") === 1 ) { - script = document.createElement("script"); - script.text = code; - document.head.appendChild( script ).parentNode.removeChild( script ); - } else { - // Otherwise, avoid the DOM node creation, insertion - // and removal by using an indirect global eval - indirect( code ); - } - } - }, - - // Convert dashed to camelCase; used by the css and data modules - // Support: IE9-11+ - // Microsoft forgot to hump their vendor prefix (#9572) - camelCase: function( string ) { - return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase ); - }, - - nodeName: function( elem, name ) { - return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase(); + // Evaluates a script in a provided context; falls back to the global one + // if not specified. + globalEval: function( code, options, doc ) { + DOMEval( code, { nonce: options && options.nonce }, doc ); }, - // args is for internal usage only - each: function( obj, callback, args ) { - var value, - i = 0, - length = obj.length, - isArray = isArraylike( obj ); - - if ( args ) { - if ( isArray ) { - for ( ; i < length; i++ ) { - value = callback.apply( obj[ i ], args ); - - if ( value === false ) { - break; - } - } - } else { - for ( i in obj ) { - value = callback.apply( obj[ i ], args ); + each: function( obj, callback ) { + var length, i = 0; - if ( value === false ) { - break; - } + if ( isArrayLike( obj ) ) { + length = obj.length; + for ( ; i < length; i++ ) { + if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { + break; } } - - // A special, fast, case for the most common use of each } else { - if ( isArray ) { - for ( ; i < length; i++ ) { - value = callback.call( obj[ i ], i, obj[ i ] ); - - if ( value === false ) { - break; - } - } - } else { - for ( i in obj ) { - value = callback.call( obj[ i ], i, obj[ i ] ); - - if ( value === false ) { - break; - } + for ( i in obj ) { + if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { + break; } } } @@ -391,19 +393,12 @@ jQuery.extend({ return obj; }, - // Support: Android<4.1 - trim: function( text ) { - return text == null ? - "" : - ( text + "" ).replace( rtrim, "" ); - }, - // results is for internal usage only makeArray: function( arr, results ) { var ret = results || []; if ( arr != null ) { - if ( isArraylike( Object(arr) ) ) { + if ( isArrayLike( Object( arr ) ) ) { jQuery.merge( ret, typeof arr === "string" ? [ arr ] : arr @@ -420,6 +415,8 @@ jQuery.extend({ return arr == null ? -1 : indexOf.call( arr, elem, i ); }, + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit merge: function( first, second ) { var len = +second.length, j = 0, @@ -455,14 +452,13 @@ jQuery.extend({ // arg is for internal usage only map: function( elems, callback, arg ) { - var value, + var length, value, i = 0, - length = elems.length, - isArray = isArraylike( elems ), ret = []; // Go through the array, translating each of the items to their new values - if ( isArray ) { + if ( isArrayLike( elems ) ) { + length = elems.length; for ( ; i < length; i++ ) { value = callback( elems[ i ], i, arg ); @@ -483,63 +479,38 @@ jQuery.extend({ } // Flatten any nested arrays - return concat.apply( [], ret ); + return flat( ret ); }, // A global GUID counter for objects guid: 1, - // Bind a function to a context, optionally partially applying any - // arguments. - proxy: function( fn, context ) { - var tmp, args, proxy; - - if ( typeof context === "string" ) { - tmp = fn[ context ]; - context = fn; - fn = tmp; - } - - // Quick check to determine if target is callable, in the spec - // this throws a TypeError, but we will just return undefined. - if ( !jQuery.isFunction( fn ) ) { - return undefined; - } - - // Simulated bind - args = slice.call( arguments, 2 ); - proxy = function() { - return fn.apply( context || this, args.concat( slice.call( arguments ) ) ); - }; - - // Set the guid of unique handler to the same of original handler, so it can be removed - proxy.guid = fn.guid = fn.guid || jQuery.guid++; - - return proxy; - }, - - now: Date.now, - // jQuery.support is not used in Core but other projects attach their // properties to it so it needs to exist. support: support -}); +} ); + +if ( typeof Symbol === "function" ) { + jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ]; +} // Populate the class2type map -jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) { +jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ), +function( _i, name ) { class2type[ "[object " + name + "]" ] = name.toLowerCase(); -}); +} ); -function isArraylike( obj ) { - var length = obj.length, - type = jQuery.type( obj ); +function isArrayLike( obj ) { - if ( type === "function" || jQuery.isWindow( obj ) ) { - return false; - } + // Support: real iOS 8.2 only (not reproducible in simulator) + // `in` check used to prevent JIT error (gh-2145) + // hasOwn isn't used here due to false negatives + // regarding Nodelist length in IE + var length = !!obj && "length" in obj && obj.length, + type = toType( obj ); - if ( obj.nodeType === 1 && length ) { - return true; + if ( isFunction( obj ) || isWindow( obj ) ) { + return false; } return type === "array" || length === 0 || @@ -547,17 +518,16 @@ function isArraylike( obj ) { } var Sizzle = /*! - * Sizzle CSS Selector Engine v2.2.0-pre - * http://sizzlejs.com/ + * Sizzle CSS Selector Engine v2.3.5 + * https://sizzlejs.com/ * - * Copyright 2008, 2014 jQuery Foundation, Inc. and other contributors + * Copyright JS Foundation and other contributors * Released under the MIT license - * http://jquery.org/license + * https://js.foundation/ * - * Date: 2014-12-16 + * Date: 2020-03-14 */ -(function( window ) { - +( function( window ) { var i, support, Expr, @@ -588,6 +558,7 @@ var i, classCache = createCache(), tokenCache = createCache(), compilerCache = createCache(), + nonnativeSelectorCache = createCache(), sortOrder = function( a, b ) { if ( a === b ) { hasDuplicate = true; @@ -595,89 +566,95 @@ var i, return 0; }, - // General-purpose constants - MAX_NEGATIVE = 1 << 31, - // Instance methods - hasOwn = ({}).hasOwnProperty, + hasOwn = ( {} ).hasOwnProperty, arr = [], pop = arr.pop, - push_native = arr.push, + pushNative = arr.push, push = arr.push, slice = arr.slice, + // Use a stripped-down indexOf as it's faster than native - // http://jsperf.com/thor-indexof-vs-for/5 + // https://jsperf.com/thor-indexof-vs-for/5 indexOf = function( list, elem ) { var i = 0, len = list.length; for ( ; i < len; i++ ) { - if ( list[i] === elem ) { + if ( list[ i ] === elem ) { return i; } } return -1; }, - booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped", + booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" + + "ismap|loop|multiple|open|readonly|required|scoped", // Regular expressions - // Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace + // http://www.w3.org/TR/css3-selectors/#whitespace whitespace = "[\\x20\\t\\r\\n\\f]", - // http://www.w3.org/TR/css3-syntax/#characters - characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+", - // Loosely modeled on CSS identifier characters - // An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors - // Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier - identifier = characterEncoding.replace( "w", "w#" ), + // https://www.w3.org/TR/css-syntax-3/#ident-token-diagram + identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace + + "?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+", // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors - attributes = "\\[" + whitespace + "*(" + characterEncoding + ")(?:" + whitespace + + attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace + + // Operator (capture 2) "*([*^$|!~]?=)" + whitespace + - // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]" - "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace + - "*\\]", - pseudos = ":(" + characterEncoding + ")(?:\\((" + + // "Attribute values must be CSS identifiers [capture 5] + // or strings [capture 3 or capture 4]" + "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + + whitespace + "*\\]", + + pseudos = ":(" + identifier + ")(?:\\((" + + // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments: // 1. quoted (capture 3; capture 4 or capture 5) "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" + + // 2. simple (capture 6) "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" + + // 3. anything else (capture 2) ".*" + ")\\)|)", // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter rwhitespace = new RegExp( whitespace + "+", "g" ), - rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ), + rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + + whitespace + "+$", "g" ), rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ), - rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ), - - rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ), + rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + + "*" ), + rdescend = new RegExp( whitespace + "|>" ), rpseudo = new RegExp( pseudos ), ridentifier = new RegExp( "^" + identifier + "$" ), matchExpr = { - "ID": new RegExp( "^#(" + characterEncoding + ")" ), - "CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ), - "TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ), + "ID": new RegExp( "^#(" + identifier + ")" ), + "CLASS": new RegExp( "^\\.(" + identifier + ")" ), + "TAG": new RegExp( "^(" + identifier + "|[*])" ), "ATTR": new RegExp( "^" + attributes ), "PSEUDO": new RegExp( "^" + pseudos ), - "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace + - "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace + - "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), + "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + + whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + + whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), "bool": new RegExp( "^(?:" + booleans + ")$", "i" ), + // For use in libraries implementing .is() // We use this for POS matching in `select` - "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + - whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) + "needsContext": new RegExp( "^" + whitespace + + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace + + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) }, + rhtml = /HTML$/i, rinputs = /^(?:input|select|textarea|button)$/i, rheader = /^h\d$/i, @@ -687,47 +664,79 @@ var i, rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/, rsibling = /[+~]/, - rescape = /'|\\/g, - - // CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters - runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ), - funescape = function( _, escaped, escapedWhitespace ) { - var high = "0x" + escaped - 0x10000; - // NaN means non-codepoint - // Support: Firefox<24 - // Workaround erroneous numeric interpretation of +"0x" - return high !== high || escapedWhitespace ? - escaped : + + // CSS escapes + // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters + runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ), + funescape = function( escape, nonHex ) { + var high = "0x" + escape.slice( 1 ) - 0x10000; + + return nonHex ? + + // Strip the backslash prefix from a non-hex escape sequence + nonHex : + + // Replace a hexadecimal escape sequence with the encoded Unicode code point + // Support: IE <=11+ + // For values outside the Basic Multilingual Plane (BMP), manually construct a + // surrogate pair high < 0 ? - // BMP codepoint String.fromCharCode( high + 0x10000 ) : - // Supplemental Plane codepoint (surrogate pair) String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 ); }, + // CSS string/identifier serialization + // https://drafts.csswg.org/cssom/#common-serializing-idioms + rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g, + fcssescape = function( ch, asCodePoint ) { + if ( asCodePoint ) { + + // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER + if ( ch === "\0" ) { + return "\uFFFD"; + } + + // Control characters and (dependent upon position) numbers get escaped as code points + return ch.slice( 0, -1 ) + "\\" + + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " "; + } + + // Other potentially-special ASCII characters get backslash-escaped + return "\\" + ch; + }, + // Used for iframes // See setDocument() // Removing the function wrapper causes a "Permission Denied" // error in IE unloadHandler = function() { setDocument(); - }; + }, + + inDisabledFieldset = addCombinator( + function( elem ) { + return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset"; + }, + { dir: "parentNode", next: "legend" } + ); // Optimize for push.apply( _, NodeList ) try { push.apply( - (arr = slice.call( preferredDoc.childNodes )), + ( arr = slice.call( preferredDoc.childNodes ) ), preferredDoc.childNodes ); + // Support: Android<4.0 // Detect silently failing push.apply + // eslint-disable-next-line no-unused-expressions arr[ preferredDoc.childNodes.length ].nodeType; } catch ( e ) { push = { apply: arr.length ? // Leverage slice if possible function( target, els ) { - push_native.apply( target, slice.call(els) ); + pushNative.apply( target, slice.call( els ) ); } : // Support: IE<9 @@ -735,111 +744,146 @@ try { function( target, els ) { var j = target.length, i = 0; + // Can't trust NodeList.length - while ( (target[j++] = els[i++]) ) {} + while ( ( target[ j++ ] = els[ i++ ] ) ) {} target.length = j - 1; } }; } function Sizzle( selector, context, results, seed ) { - var match, elem, m, nodeType, - // QSA vars - i, groups, old, nid, newContext, newSelector; + var m, i, elem, nid, match, groups, newSelector, + newContext = context && context.ownerDocument, - if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) { - setDocument( context ); - } + // nodeType defaults to 9, since context defaults to document + nodeType = context ? context.nodeType : 9; - context = context || document; results = results || []; - nodeType = context.nodeType; + // Return early from calls with invalid selector or context if ( typeof selector !== "string" || !selector || nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) { return results; } - if ( !seed && documentIsHTML ) { - - // Try to shortcut find operations when possible (e.g., not under DocumentFragment) - if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) { - // Speed-up: Sizzle("#ID") - if ( (m = match[1]) ) { - if ( nodeType === 9 ) { - elem = context.getElementById( m ); - // Check parentNode to catch when Blackberry 4.6 returns - // nodes that are no longer in the document (jQuery #6963) - if ( elem && elem.parentNode ) { - // Handle the case where IE, Opera, and Webkit return items - // by name instead of ID - if ( elem.id === m ) { - results.push( elem ); + // Try to shortcut find operations (as opposed to filters) in HTML documents + if ( !seed ) { + setDocument( context ); + context = context || document; + + if ( documentIsHTML ) { + + // If the selector is sufficiently simple, try using a "get*By*" DOM method + // (excepting DocumentFragment context, where the methods don't exist) + if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) { + + // ID selector + if ( ( m = match[ 1 ] ) ) { + + // Document context + if ( nodeType === 9 ) { + if ( ( elem = context.getElementById( m ) ) ) { + + // Support: IE, Opera, Webkit + // TODO: identify versions + // getElementById can match elements by name instead of ID + if ( elem.id === m ) { + results.push( elem ); + return results; + } + } else { return results; } + + // Element context } else { - return results; - } - } else { - // Context is not a document - if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) && - contains( context, elem ) && elem.id === m ) { - results.push( elem ); - return results; + + // Support: IE, Opera, Webkit + // TODO: identify versions + // getElementById can match elements by name instead of ID + if ( newContext && ( elem = newContext.getElementById( m ) ) && + contains( context, elem ) && + elem.id === m ) { + + results.push( elem ); + return results; + } } - } - // Speed-up: Sizzle("TAG") - } else if ( match[2] ) { - push.apply( results, context.getElementsByTagName( selector ) ); - return results; + // Type selector + } else if ( match[ 2 ] ) { + push.apply( results, context.getElementsByTagName( selector ) ); + return results; - // Speed-up: Sizzle(".CLASS") - } else if ( (m = match[3]) && support.getElementsByClassName ) { - push.apply( results, context.getElementsByClassName( m ) ); - return results; + // Class selector + } else if ( ( m = match[ 3 ] ) && support.getElementsByClassName && + context.getElementsByClassName ) { + + push.apply( results, context.getElementsByClassName( m ) ); + return results; + } } - } - // QSA path - if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) { - nid = old = expando; - newContext = context; - newSelector = nodeType !== 1 && selector; + // Take advantage of querySelectorAll + if ( support.qsa && + !nonnativeSelectorCache[ selector + " " ] && + ( !rbuggyQSA || !rbuggyQSA.test( selector ) ) && - // qSA works strangely on Element-rooted queries - // We can work around this by specifying an extra ID on the root - // and working up from there (Thanks to Andrew Dupont for the technique) - // IE 8 doesn't work on object elements - if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) { - groups = tokenize( selector ); + // Support: IE 8 only + // Exclude object elements + ( nodeType !== 1 || context.nodeName.toLowerCase() !== "object" ) ) { - if ( (old = context.getAttribute("id")) ) { - nid = old.replace( rescape, "\\$&" ); - } else { - context.setAttribute( "id", nid ); - } - nid = "[id='" + nid + "'] "; + newSelector = selector; + newContext = context; - i = groups.length; - while ( i-- ) { - groups[i] = nid + toSelector( groups[i] ); + // qSA considers elements outside a scoping root when evaluating child or + // descendant combinators, which is not what we want. + // In such cases, we work around the behavior by prefixing every selector in the + // list with an ID selector referencing the scope context. + // The technique has to be used as well when a leading combinator is used + // as such selectors are not recognized by querySelectorAll. + // Thanks to Andrew Dupont for this technique. + if ( nodeType === 1 && + ( rdescend.test( selector ) || rcombinators.test( selector ) ) ) { + + // Expand context for sibling selectors + newContext = rsibling.test( selector ) && testContext( context.parentNode ) || + context; + + // We can use :scope instead of the ID hack if the browser + // supports it & if we're not changing the context. + if ( newContext !== context || !support.scope ) { + + // Capture the context ID, setting it first if necessary + if ( ( nid = context.getAttribute( "id" ) ) ) { + nid = nid.replace( rcssescape, fcssescape ); + } else { + context.setAttribute( "id", ( nid = expando ) ); + } + } + + // Prefix every selector in the list + groups = tokenize( selector ); + i = groups.length; + while ( i-- ) { + groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " + + toSelector( groups[ i ] ); + } + newSelector = groups.join( "," ); } - newContext = rsibling.test( selector ) && testContext( context.parentNode ) || context; - newSelector = groups.join(","); - } - if ( newSelector ) { try { push.apply( results, newContext.querySelectorAll( newSelector ) ); return results; - } catch(qsaError) { + } catch ( qsaError ) { + nonnativeSelectorCache( selector, true ); } finally { - if ( !old ) { - context.removeAttribute("id"); + if ( nid === expando ) { + context.removeAttribute( "id" ); } } } @@ -852,7 +896,7 @@ function Sizzle( selector, context, results, seed ) { /** * Create key-value caches of limited size - * @returns {Function(string, Object)} Returns the Object data after storing it on itself with + * @returns {function(string, object)} Returns the Object data after storing it on itself with * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength) * deleting the oldest entry */ @@ -860,12 +904,14 @@ function createCache() { var keys = []; function cache( key, value ) { + // Use (key + " ") to avoid collision with native prototype properties (see Issue #157) if ( keys.push( key + " " ) > Expr.cacheLength ) { + // Only keep the most recent entries delete cache[ keys.shift() ]; } - return (cache[ key + " " ] = value); + return ( cache[ key + " " ] = value ); } return cache; } @@ -881,22 +927,24 @@ function markFunction( fn ) { /** * Support testing using an element - * @param {Function} fn Passed the created div and expects a boolean result + * @param {Function} fn Passed the created element and returns a boolean result */ function assert( fn ) { - var div = document.createElement("div"); + var el = document.createElement( "fieldset" ); try { - return !!fn( div ); - } catch (e) { + return !!fn( el ); + } catch ( e ) { return false; } finally { + // Remove from its parent by default - if ( div.parentNode ) { - div.parentNode.removeChild( div ); + if ( el.parentNode ) { + el.parentNode.removeChild( el ); } + // release memory in IE - div = null; + el = null; } } @@ -906,11 +954,11 @@ function assert( fn ) { * @param {Function} handler The method that will be applied */ function addHandle( attrs, handler ) { - var arr = attrs.split("|"), - i = attrs.length; + var arr = attrs.split( "|" ), + i = arr.length; while ( i-- ) { - Expr.attrHandle[ arr[i] ] = handler; + Expr.attrHandle[ arr[ i ] ] = handler; } } @@ -923,8 +971,7 @@ function addHandle( attrs, handler ) { function siblingCheck( a, b ) { var cur = b && a, diff = cur && a.nodeType === 1 && b.nodeType === 1 && - ( ~b.sourceIndex || MAX_NEGATIVE ) - - ( ~a.sourceIndex || MAX_NEGATIVE ); + a.sourceIndex - b.sourceIndex; // Use IE sourceIndex if available on both nodes if ( diff ) { @@ -933,7 +980,7 @@ function siblingCheck( a, b ) { // Check if b follows a if ( cur ) { - while ( (cur = cur.nextSibling) ) { + while ( ( cur = cur.nextSibling ) ) { if ( cur === b ) { return -1; } @@ -961,7 +1008,63 @@ function createInputPseudo( type ) { function createButtonPseudo( type ) { return function( elem ) { var name = elem.nodeName.toLowerCase(); - return (name === "input" || name === "button") && elem.type === type; + return ( name === "input" || name === "button" ) && elem.type === type; + }; +} + +/** + * Returns a function to use in pseudos for :enabled/:disabled + * @param {Boolean} disabled true for :disabled; false for :enabled + */ +function createDisabledPseudo( disabled ) { + + // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable + return function( elem ) { + + // Only certain elements can match :enabled or :disabled + // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled + // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled + if ( "form" in elem ) { + + // Check for inherited disabledness on relevant non-disabled elements: + // * listed form-associated elements in a disabled fieldset + // https://html.spec.whatwg.org/multipage/forms.html#category-listed + // https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled + // * option elements in a disabled optgroup + // https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled + // All such elements have a "form" property. + if ( elem.parentNode && elem.disabled === false ) { + + // Option elements defer to a parent optgroup if present + if ( "label" in elem ) { + if ( "label" in elem.parentNode ) { + return elem.parentNode.disabled === disabled; + } else { + return elem.disabled === disabled; + } + } + + // Support: IE 6 - 11 + // Use the isDisabled shortcut property to check for disabled fieldset ancestors + return elem.isDisabled === disabled || + + // Where there is no isDisabled, check manually + /* jshint -W018 */ + elem.isDisabled !== !disabled && + inDisabledFieldset( elem ) === disabled; + } + + return elem.disabled === disabled; + + // Try to winnow out elements that can't be disabled before trusting the disabled property. + // Some victims get caught in our net (label, legend, menu, track), but it shouldn't + // even exist on them, let alone have a boolean value. + } else if ( "label" in elem ) { + return elem.disabled === disabled; + } + + // Remaining elements are neither :enabled nor :disabled + return false; }; } @@ -970,21 +1073,21 @@ function createButtonPseudo( type ) { * @param {Function} fn */ function createPositionalPseudo( fn ) { - return markFunction(function( argument ) { + return markFunction( function( argument ) { argument = +argument; - return markFunction(function( seed, matches ) { + return markFunction( function( seed, matches ) { var j, matchIndexes = fn( [], seed.length, argument ), i = matchIndexes.length; // Match elements found at the specified indexes while ( i-- ) { - if ( seed[ (j = matchIndexes[i]) ] ) { - seed[j] = !(matches[j] = seed[j]); + if ( seed[ ( j = matchIndexes[ i ] ) ] ) { + seed[ j ] = !( matches[ j ] = seed[ j ] ); } } - }); - }); + } ); + } ); } /** @@ -1005,10 +1108,13 @@ support = Sizzle.support = {}; * @returns {Boolean} True iff elem is a non-HTML XML node */ isXML = Sizzle.isXML = function( elem ) { - // documentElement is verified for cases where it doesn't yet exist - // (such as loading iframes in IE - #4833) - var documentElement = elem && (elem.ownerDocument || elem).documentElement; - return documentElement ? documentElement.nodeName !== "HTML" : false; + var namespace = elem.namespaceURI, + docElem = ( elem.ownerDocument || elem ).documentElement; + + // Support: IE <=8 + // Assume HTML when documentElement doesn't yet exist, such as inside loading iframes + // https://bugs.jquery.com/ticket/4833 + return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" ); }; /** @@ -1017,35 +1123,52 @@ isXML = Sizzle.isXML = function( elem ) { * @returns {Object} Returns the current document */ setDocument = Sizzle.setDocument = function( node ) { - var hasCompare, parent, + var hasCompare, subWindow, doc = node ? node.ownerDocument || node : preferredDoc; - // If no document and documentElement is available, return - if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) { + // Return early if doc is invalid or already selected + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( doc == document || doc.nodeType !== 9 || !doc.documentElement ) { return document; } - // Set our document + // Update global variables document = doc; - docElem = doc.documentElement; - parent = doc.defaultView; - - // Support: IE>8 - // If iframe document is assigned to "document" variable and if iframe has been reloaded, - // IE will throw "permission denied" error when accessing "document" variable, see jQuery #13936 - // IE6-8 do not support the defaultView property so parent will be undefined - if ( parent && parent !== parent.top ) { - // IE11 does not have attachEvent, so all must suffer - if ( parent.addEventListener ) { - parent.addEventListener( "unload", unloadHandler, false ); - } else if ( parent.attachEvent ) { - parent.attachEvent( "onunload", unloadHandler ); - } - } - - /* Support tests - ---------------------------------------------------------------------- */ - documentIsHTML = !isXML( doc ); + docElem = document.documentElement; + documentIsHTML = !isXML( document ); + + // Support: IE 9 - 11+, Edge 12 - 18+ + // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936) + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( preferredDoc != document && + ( subWindow = document.defaultView ) && subWindow.top !== subWindow ) { + + // Support: IE 11, Edge + if ( subWindow.addEventListener ) { + subWindow.addEventListener( "unload", unloadHandler, false ); + + // Support: IE 9 - 10 only + } else if ( subWindow.attachEvent ) { + subWindow.attachEvent( "onunload", unloadHandler ); + } + } + + // Support: IE 8 - 11+, Edge 12 - 18+, Chrome <=16 - 25 only, Firefox <=3.6 - 31 only, + // Safari 4 - 5 only, Opera <=11.6 - 12.x only + // IE/Edge & older browsers don't support the :scope pseudo-class. + // Support: Safari 6.0 only + // Safari 6.0 supports :scope but it's an alias of :root there. + support.scope = assert( function( el ) { + docElem.appendChild( el ).appendChild( document.createElement( "div" ) ); + return typeof el.querySelectorAll !== "undefined" && + !el.querySelectorAll( ":scope fieldset div" ).length; + } ); /* Attributes ---------------------------------------------------------------------- */ @@ -1053,64 +1176,89 @@ setDocument = Sizzle.setDocument = function( node ) { // Support: IE<8 // Verify that getAttribute really returns attributes and not properties // (excepting IE8 booleans) - support.attributes = assert(function( div ) { - div.className = "i"; - return !div.getAttribute("className"); - }); + support.attributes = assert( function( el ) { + el.className = "i"; + return !el.getAttribute( "className" ); + } ); /* getElement(s)By* ---------------------------------------------------------------------- */ // Check if getElementsByTagName("*") returns only elements - support.getElementsByTagName = assert(function( div ) { - div.appendChild( doc.createComment("") ); - return !div.getElementsByTagName("*").length; - }); + support.getElementsByTagName = assert( function( el ) { + el.appendChild( document.createComment( "" ) ); + return !el.getElementsByTagName( "*" ).length; + } ); // Support: IE<9 - support.getElementsByClassName = rnative.test( doc.getElementsByClassName ); + support.getElementsByClassName = rnative.test( document.getElementsByClassName ); // Support: IE<10 // Check if getElementById returns elements by name - // The broken getElementById methods don't pick up programatically-set names, + // The broken getElementById methods don't pick up programmatically-set names, // so use a roundabout getElementsByName test - support.getById = assert(function( div ) { - docElem.appendChild( div ).id = expando; - return !doc.getElementsByName || !doc.getElementsByName( expando ).length; - }); + support.getById = assert( function( el ) { + docElem.appendChild( el ).id = expando; + return !document.getElementsByName || !document.getElementsByName( expando ).length; + } ); - // ID find and filter + // ID filter and find if ( support.getById ) { - Expr.find["ID"] = function( id, context ) { - if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { - var m = context.getElementById( id ); - // Check parentNode to catch when Blackberry 4.6 returns - // nodes that are no longer in the document #6963 - return m && m.parentNode ? [ m ] : []; - } - }; - Expr.filter["ID"] = function( id ) { + Expr.filter[ "ID" ] = function( id ) { var attrId = id.replace( runescape, funescape ); return function( elem ) { - return elem.getAttribute("id") === attrId; + return elem.getAttribute( "id" ) === attrId; }; }; + Expr.find[ "ID" ] = function( id, context ) { + if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { + var elem = context.getElementById( id ); + return elem ? [ elem ] : []; + } + }; } else { - // Support: IE6/7 - // getElementById is not reliable as a find shortcut - delete Expr.find["ID"]; - - Expr.filter["ID"] = function( id ) { + Expr.filter[ "ID" ] = function( id ) { var attrId = id.replace( runescape, funescape ); return function( elem ) { - var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id"); + var node = typeof elem.getAttributeNode !== "undefined" && + elem.getAttributeNode( "id" ); return node && node.value === attrId; }; }; + + // Support: IE 6 - 7 only + // getElementById is not reliable as a find shortcut + Expr.find[ "ID" ] = function( id, context ) { + if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { + var node, i, elems, + elem = context.getElementById( id ); + + if ( elem ) { + + // Verify the id attribute + node = elem.getAttributeNode( "id" ); + if ( node && node.value === id ) { + return [ elem ]; + } + + // Fall back on getElementsByName + elems = context.getElementsByName( id ); + i = 0; + while ( ( elem = elems[ i++ ] ) ) { + node = elem.getAttributeNode( "id" ); + if ( node && node.value === id ) { + return [ elem ]; + } + } + } + + return []; + } + }; } // Tag - Expr.find["TAG"] = support.getElementsByTagName ? + Expr.find[ "TAG" ] = support.getElementsByTagName ? function( tag, context ) { if ( typeof context.getElementsByTagName !== "undefined" ) { return context.getElementsByTagName( tag ); @@ -1125,12 +1273,13 @@ setDocument = Sizzle.setDocument = function( node ) { var elem, tmp = [], i = 0, + // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too results = context.getElementsByTagName( tag ); // Filter out possible comments if ( tag === "*" ) { - while ( (elem = results[i++]) ) { + while ( ( elem = results[ i++ ] ) ) { if ( elem.nodeType === 1 ) { tmp.push( elem ); } @@ -1142,8 +1291,8 @@ setDocument = Sizzle.setDocument = function( node ) { }; // Class - Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) { - if ( documentIsHTML ) { + Expr.find[ "CLASS" ] = support.getElementsByClassName && function( className, context ) { + if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) { return context.getElementsByClassName( className ); } }; @@ -1160,108 +1309,142 @@ setDocument = Sizzle.setDocument = function( node ) { // We allow this because of a bug in IE8/9 that throws an error // whenever `document.activeElement` is accessed on an iframe // So, we allow :focus to pass through QSA all the time to avoid the IE error - // See http://bugs.jquery.com/ticket/13378 + // See https://bugs.jquery.com/ticket/13378 rbuggyQSA = []; - if ( (support.qsa = rnative.test( doc.querySelectorAll )) ) { + if ( ( support.qsa = rnative.test( document.querySelectorAll ) ) ) { + // Build QSA regex // Regex strategy adopted from Diego Perini - assert(function( div ) { + assert( function( el ) { + + var input; + // Select is set to empty string on purpose // This is to test IE's treatment of not explicitly // setting a boolean content attribute, // since its presence should be enough - // http://bugs.jquery.com/ticket/12359 - docElem.appendChild( div ).innerHTML = "" + - "" + ""; // Support: IE8, Opera 11-12.16 // Nothing should be selected when empty strings follow ^= or $= or *= // The test attribute must be unknown in Opera but "safe" for WinRT - // http://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section - if ( div.querySelectorAll("[msallowcapture^='']").length ) { + // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section + if ( el.querySelectorAll( "[msallowcapture^='']" ).length ) { rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" ); } // Support: IE8 // Boolean attributes and "value" are not treated correctly - if ( !div.querySelectorAll("[selected]").length ) { + if ( !el.querySelectorAll( "[selected]" ).length ) { rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" ); } - // Support: Chrome<29, Android<4.2+, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.7+ - if ( !div.querySelectorAll( "[id~=" + expando + "-]" ).length ) { - rbuggyQSA.push("~="); + // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+ + if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) { + rbuggyQSA.push( "~=" ); + } + + // Support: IE 11+, Edge 15 - 18+ + // IE 11/Edge don't find elements on a `[name='']` query in some cases. + // Adding a temporary attribute to the document before the selection works + // around the issue. + // Interestingly, IE 10 & older don't seem to have the issue. + input = document.createElement( "input" ); + input.setAttribute( "name", "" ); + el.appendChild( input ); + if ( !el.querySelectorAll( "[name='']" ).length ) { + rbuggyQSA.push( "\\[" + whitespace + "*name" + whitespace + "*=" + + whitespace + "*(?:''|\"\")" ); } // Webkit/Opera - :checked should return selected option elements // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked // IE8 throws error here and will not see later tests - if ( !div.querySelectorAll(":checked").length ) { - rbuggyQSA.push(":checked"); + if ( !el.querySelectorAll( ":checked" ).length ) { + rbuggyQSA.push( ":checked" ); } // Support: Safari 8+, iOS 8+ // https://bugs.webkit.org/show_bug.cgi?id=136851 - // In-page `selector#id sibing-combinator selector` fails - if ( !div.querySelectorAll( "a#" + expando + "+*" ).length ) { - rbuggyQSA.push(".#.+[+~]"); + // In-page `selector#id sibling-combinator selector` fails + if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) { + rbuggyQSA.push( ".#.+[+~]" ); } - }); - assert(function( div ) { + // Support: Firefox <=3.6 - 5 only + // Old Firefox doesn't throw on a badly-escaped identifier. + el.querySelectorAll( "\\\f" ); + rbuggyQSA.push( "[\\r\\n\\f]" ); + } ); + + assert( function( el ) { + el.innerHTML = "" + + ""; + // Support: Windows 8 Native Apps // The type and name attributes are restricted during .innerHTML assignment - var input = doc.createElement("input"); + var input = document.createElement( "input" ); input.setAttribute( "type", "hidden" ); - div.appendChild( input ).setAttribute( "name", "D" ); + el.appendChild( input ).setAttribute( "name", "D" ); // Support: IE8 // Enforce case-sensitivity of name attribute - if ( div.querySelectorAll("[name=d]").length ) { + if ( el.querySelectorAll( "[name=d]" ).length ) { rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" ); } // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled) // IE8 throws error here and will not see later tests - if ( !div.querySelectorAll(":enabled").length ) { + if ( el.querySelectorAll( ":enabled" ).length !== 2 ) { + rbuggyQSA.push( ":enabled", ":disabled" ); + } + + // Support: IE9-11+ + // IE's :disabled selector does not pick up the children of disabled fieldsets + docElem.appendChild( el ).disabled = true; + if ( el.querySelectorAll( ":disabled" ).length !== 2 ) { rbuggyQSA.push( ":enabled", ":disabled" ); } + // Support: Opera 10 - 11 only // Opera 10-11 does not throw on post-comma invalid pseudos - div.querySelectorAll("*,:x"); - rbuggyQSA.push(",.*:"); - }); + el.querySelectorAll( "*,:x" ); + rbuggyQSA.push( ",.*:" ); + } ); } - if ( (support.matchesSelector = rnative.test( (matches = docElem.matches || + if ( ( support.matchesSelector = rnative.test( ( matches = docElem.matches || docElem.webkitMatchesSelector || docElem.mozMatchesSelector || docElem.oMatchesSelector || - docElem.msMatchesSelector) )) ) { + docElem.msMatchesSelector ) ) ) ) { + + assert( function( el ) { - assert(function( div ) { // Check to see if it's possible to do matchesSelector // on a disconnected node (IE 9) - support.disconnectedMatch = matches.call( div, "div" ); + support.disconnectedMatch = matches.call( el, "*" ); // This should fail with an exception // Gecko does not error, returns false instead - matches.call( div, "[s!='']:x" ); + matches.call( el, "[s!='']:x" ); rbuggyMatches.push( "!=", pseudos ); - }); + } ); } - rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") ); - rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") ); + rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join( "|" ) ); + rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join( "|" ) ); /* Contains ---------------------------------------------------------------------- */ hasCompare = rnative.test( docElem.compareDocumentPosition ); // Element contains another - // Purposefully does not implement inclusive descendent + // Purposefully self-exclusive // As in, an element does not contain itself contains = hasCompare || rnative.test( docElem.contains ) ? function( a, b ) { @@ -1271,11 +1454,11 @@ setDocument = Sizzle.setDocument = function( node ) { adown.contains ? adown.contains( bup ) : a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16 - )); + ) ); } : function( a, b ) { if ( b ) { - while ( (b = b.parentNode) ) { + while ( ( b = b.parentNode ) ) { if ( b === a ) { return true; } @@ -1304,7 +1487,11 @@ setDocument = Sizzle.setDocument = function( node ) { } // Calculate position if both inputs belong to the same document - compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ? + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + compare = ( a.ownerDocument || a ) == ( b.ownerDocument || b ) ? a.compareDocumentPosition( b ) : // Otherwise we know they are disconnected @@ -1312,13 +1499,24 @@ setDocument = Sizzle.setDocument = function( node ) { // Disconnected nodes if ( compare & 1 || - (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) { + ( !support.sortDetached && b.compareDocumentPosition( a ) === compare ) ) { // Choose the first element that is related to our preferred document - if ( a === doc || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) { + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( a == document || a.ownerDocument == preferredDoc && + contains( preferredDoc, a ) ) { return -1; } - if ( b === doc || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) { + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( b == document || b.ownerDocument == preferredDoc && + contains( preferredDoc, b ) ) { return 1; } @@ -1331,6 +1529,7 @@ setDocument = Sizzle.setDocument = function( node ) { return compare & 4 ? -1 : 1; } : function( a, b ) { + // Exit early if the nodes are identical if ( a === b ) { hasDuplicate = true; @@ -1346,8 +1545,14 @@ setDocument = Sizzle.setDocument = function( node ) { // Parentless nodes are either documents or disconnected if ( !aup || !bup ) { - return a === doc ? -1 : - b === doc ? 1 : + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + /* eslint-disable eqeqeq */ + return a == document ? -1 : + b == document ? 1 : + /* eslint-enable eqeqeq */ aup ? -1 : bup ? 1 : sortInput ? @@ -1361,30 +1566,36 @@ setDocument = Sizzle.setDocument = function( node ) { // Otherwise we need full lists of their ancestors for comparison cur = a; - while ( (cur = cur.parentNode) ) { + while ( ( cur = cur.parentNode ) ) { ap.unshift( cur ); } cur = b; - while ( (cur = cur.parentNode) ) { + while ( ( cur = cur.parentNode ) ) { bp.unshift( cur ); } // Walk down the tree looking for a discrepancy - while ( ap[i] === bp[i] ) { + while ( ap[ i ] === bp[ i ] ) { i++; } return i ? + // Do a sibling check if the nodes have a common ancestor - siblingCheck( ap[i], bp[i] ) : + siblingCheck( ap[ i ], bp[ i ] ) : // Otherwise nodes in our document sort first - ap[i] === preferredDoc ? -1 : - bp[i] === preferredDoc ? 1 : + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + /* eslint-disable eqeqeq */ + ap[ i ] == preferredDoc ? -1 : + bp[ i ] == preferredDoc ? 1 : + /* eslint-enable eqeqeq */ 0; }; - return doc; + return document; }; Sizzle.matches = function( expr, elements ) { @@ -1392,15 +1603,10 @@ Sizzle.matches = function( expr, elements ) { }; Sizzle.matchesSelector = function( elem, expr ) { - // Set document vars if needed - if ( ( elem.ownerDocument || elem ) !== document ) { - setDocument( elem ); - } - - // Make sure that attribute selectors are quoted - expr = expr.replace( rattributeQuotes, "='$1']" ); + setDocument( elem ); if ( support.matchesSelector && documentIsHTML && + !nonnativeSelectorCache[ expr + " " ] && ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) && ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) { @@ -1409,32 +1615,46 @@ Sizzle.matchesSelector = function( elem, expr ) { // IE 9's matchesSelector returns false on disconnected nodes if ( ret || support.disconnectedMatch || - // As well, disconnected nodes are said to be in a document - // fragment in IE 9 - elem.document && elem.document.nodeType !== 11 ) { + + // As well, disconnected nodes are said to be in a document + // fragment in IE 9 + elem.document && elem.document.nodeType !== 11 ) { return ret; } - } catch (e) {} + } catch ( e ) { + nonnativeSelectorCache( expr, true ); + } } return Sizzle( expr, document, null, [ elem ] ).length > 0; }; Sizzle.contains = function( context, elem ) { + // Set document vars if needed - if ( ( context.ownerDocument || context ) !== document ) { + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( ( context.ownerDocument || context ) != document ) { setDocument( context ); } return contains( context, elem ); }; Sizzle.attr = function( elem, name ) { + // Set document vars if needed - if ( ( elem.ownerDocument || elem ) !== document ) { + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( ( elem.ownerDocument || elem ) != document ) { setDocument( elem ); } var fn = Expr.attrHandle[ name.toLowerCase() ], + // Don't get fooled by Object.prototype properties (jQuery #13807) val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ? fn( elem, name, !documentIsHTML ) : @@ -1444,11 +1664,15 @@ Sizzle.attr = function( elem, name ) { val : support.attributes || !documentIsHTML ? elem.getAttribute( name ) : - (val = elem.getAttributeNode(name)) && val.specified ? + ( val = elem.getAttributeNode( name ) ) && val.specified ? val.value : null; }; +Sizzle.escape = function( sel ) { + return ( sel + "" ).replace( rcssescape, fcssescape ); +}; + Sizzle.error = function( msg ) { throw new Error( "Syntax error, unrecognized expression: " + msg ); }; @@ -1469,7 +1693,7 @@ Sizzle.uniqueSort = function( results ) { results.sort( sortOrder ); if ( hasDuplicate ) { - while ( (elem = results[i++]) ) { + while ( ( elem = results[ i++ ] ) ) { if ( elem === results[ i ] ) { j = duplicates.push( i ); } @@ -1497,17 +1721,21 @@ getText = Sizzle.getText = function( elem ) { nodeType = elem.nodeType; if ( !nodeType ) { + // If no nodeType, this is expected to be an array - while ( (node = elem[i++]) ) { + while ( ( node = elem[ i++ ] ) ) { + // Do not traverse comment nodes ret += getText( node ); } } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) { + // Use textContent for elements // innerText usage removed for consistency of new lines (jQuery #11153) if ( typeof elem.textContent === "string" ) { return elem.textContent; } else { + // Traverse its children for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { ret += getText( elem ); @@ -1516,6 +1744,7 @@ getText = Sizzle.getText = function( elem ) { } else if ( nodeType === 3 || nodeType === 4 ) { return elem.nodeValue; } + // Do not include comment or processing instruction nodes return ret; @@ -1543,19 +1772,21 @@ Expr = Sizzle.selectors = { preFilter: { "ATTR": function( match ) { - match[1] = match[1].replace( runescape, funescape ); + match[ 1 ] = match[ 1 ].replace( runescape, funescape ); // Move the given value to match[3] whether quoted or unquoted - match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape ); + match[ 3 ] = ( match[ 3 ] || match[ 4 ] || + match[ 5 ] || "" ).replace( runescape, funescape ); - if ( match[2] === "~=" ) { - match[3] = " " + match[3] + " "; + if ( match[ 2 ] === "~=" ) { + match[ 3 ] = " " + match[ 3 ] + " "; } return match.slice( 0, 4 ); }, "CHILD": function( match ) { + /* matches from matchExpr["CHILD"] 1 type (only|nth|...) 2 what (child|of-type) @@ -1566,22 +1797,25 @@ Expr = Sizzle.selectors = { 7 sign of y-component 8 y of y-component */ - match[1] = match[1].toLowerCase(); + match[ 1 ] = match[ 1 ].toLowerCase(); + + if ( match[ 1 ].slice( 0, 3 ) === "nth" ) { - if ( match[1].slice( 0, 3 ) === "nth" ) { // nth-* requires argument - if ( !match[3] ) { - Sizzle.error( match[0] ); + if ( !match[ 3 ] ) { + Sizzle.error( match[ 0 ] ); } // numeric x and y parameters for Expr.filter.CHILD // remember that false/true cast respectively to 0/1 - match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) ); - match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" ); + match[ 4 ] = +( match[ 4 ] ? + match[ 5 ] + ( match[ 6 ] || 1 ) : + 2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" ) ); + match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" ); - // other types prohibit arguments - } else if ( match[3] ) { - Sizzle.error( match[0] ); + // other types prohibit arguments + } else if ( match[ 3 ] ) { + Sizzle.error( match[ 0 ] ); } return match; @@ -1589,26 +1823,28 @@ Expr = Sizzle.selectors = { "PSEUDO": function( match ) { var excess, - unquoted = !match[6] && match[2]; + unquoted = !match[ 6 ] && match[ 2 ]; - if ( matchExpr["CHILD"].test( match[0] ) ) { + if ( matchExpr[ "CHILD" ].test( match[ 0 ] ) ) { return null; } // Accept quoted arguments as-is - if ( match[3] ) { - match[2] = match[4] || match[5] || ""; + if ( match[ 3 ] ) { + match[ 2 ] = match[ 4 ] || match[ 5 ] || ""; // Strip excess characters from unquoted arguments } else if ( unquoted && rpseudo.test( unquoted ) && + // Get excess from tokenize (recursively) - (excess = tokenize( unquoted, true )) && + ( excess = tokenize( unquoted, true ) ) && + // advance to the next closing parenthesis - (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) { + ( excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length ) ) { // excess is a negative index - match[0] = match[0].slice( 0, excess ); - match[2] = unquoted.slice( 0, excess ); + match[ 0 ] = match[ 0 ].slice( 0, excess ); + match[ 2 ] = unquoted.slice( 0, excess ); } // Return only captures needed by the pseudo filter method (type and argument) @@ -1621,7 +1857,9 @@ Expr = Sizzle.selectors = { "TAG": function( nodeNameSelector ) { var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase(); return nodeNameSelector === "*" ? - function() { return true; } : + function() { + return true; + } : function( elem ) { return elem.nodeName && elem.nodeName.toLowerCase() === nodeName; }; @@ -1631,10 +1869,16 @@ Expr = Sizzle.selectors = { var pattern = classCache[ className + " " ]; return pattern || - (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) && - classCache( className, function( elem ) { - return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" ); - }); + ( pattern = new RegExp( "(^|" + whitespace + + ")" + className + "(" + whitespace + "|$)" ) ) && classCache( + className, function( elem ) { + return pattern.test( + typeof elem.className === "string" && elem.className || + typeof elem.getAttribute !== "undefined" && + elem.getAttribute( "class" ) || + "" + ); + } ); }, "ATTR": function( name, operator, check ) { @@ -1650,6 +1894,8 @@ Expr = Sizzle.selectors = { result += ""; + /* eslint-disable max-len */ + return operator === "=" ? result === check : operator === "!=" ? result !== check : operator === "^=" ? check && result.indexOf( check ) === 0 : @@ -1658,10 +1904,12 @@ Expr = Sizzle.selectors = { operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 : operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" : false; + /* eslint-enable max-len */ + }; }, - "CHILD": function( type, what, argument, first, last ) { + "CHILD": function( type, what, _argument, first, last ) { var simple = type.slice( 0, 3 ) !== "nth", forward = type.slice( -4 ) !== "last", ofType = what === "of-type"; @@ -1673,12 +1921,13 @@ Expr = Sizzle.selectors = { return !!elem.parentNode; } : - function( elem, context, xml ) { - var cache, outerCache, node, diff, nodeIndex, start, + function( elem, _context, xml ) { + var cache, uniqueCache, outerCache, node, nodeIndex, start, dir = simple !== forward ? "nextSibling" : "previousSibling", parent = elem.parentNode, name = ofType && elem.nodeName.toLowerCase(), - useCache = !xml && !ofType; + useCache = !xml && !ofType, + diff = false; if ( parent ) { @@ -1686,11 +1935,15 @@ Expr = Sizzle.selectors = { if ( simple ) { while ( dir ) { node = elem; - while ( (node = node[ dir ]) ) { - if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) { + while ( ( node = node[ dir ] ) ) { + if ( ofType ? + node.nodeName.toLowerCase() === name : + node.nodeType === 1 ) { + return false; } } + // Reverse direction for :only-* (if we haven't yet done so) start = dir = type === "only" && !start && "nextSibling"; } @@ -1701,43 +1954,83 @@ Expr = Sizzle.selectors = { // non-xml :nth-child(...) stores cache data on `parent` if ( forward && useCache ) { + // Seek `elem` from a previously-cached index - outerCache = parent[ expando ] || (parent[ expando ] = {}); - cache = outerCache[ type ] || []; - nodeIndex = cache[0] === dirruns && cache[1]; - diff = cache[0] === dirruns && cache[2]; + + // ...in a gzip-friendly way + node = parent; + outerCache = node[ expando ] || ( node[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + ( outerCache[ node.uniqueID ] = {} ); + + cache = uniqueCache[ type ] || []; + nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; + diff = nodeIndex && cache[ 2 ]; node = nodeIndex && parent.childNodes[ nodeIndex ]; - while ( (node = ++nodeIndex && node && node[ dir ] || + while ( ( node = ++nodeIndex && node && node[ dir ] || // Fallback to seeking `elem` from the start - (diff = nodeIndex = 0) || start.pop()) ) { + ( diff = nodeIndex = 0 ) || start.pop() ) ) { // When found, cache indexes on `parent` and break if ( node.nodeType === 1 && ++diff && node === elem ) { - outerCache[ type ] = [ dirruns, nodeIndex, diff ]; + uniqueCache[ type ] = [ dirruns, nodeIndex, diff ]; break; } } - // Use previously-cached element index if available - } else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) { - diff = cache[1]; - - // xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...) } else { - // Use the same loop as above to seek `elem` from the start - while ( (node = ++nodeIndex && node && node[ dir ] || - (diff = nodeIndex = 0) || start.pop()) ) { - - if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) { - // Cache the index of each encountered element - if ( useCache ) { - (node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ]; - } - if ( node === elem ) { - break; + // Use previously-cached element index if available + if ( useCache ) { + + // ...in a gzip-friendly way + node = elem; + outerCache = node[ expando ] || ( node[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + ( outerCache[ node.uniqueID ] = {} ); + + cache = uniqueCache[ type ] || []; + nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; + diff = nodeIndex; + } + + // xml :nth-child(...) + // or :nth-last-child(...) or :nth(-last)?-of-type(...) + if ( diff === false ) { + + // Use the same loop as above to seek `elem` from the start + while ( ( node = ++nodeIndex && node && node[ dir ] || + ( diff = nodeIndex = 0 ) || start.pop() ) ) { + + if ( ( ofType ? + node.nodeName.toLowerCase() === name : + node.nodeType === 1 ) && + ++diff ) { + + // Cache the index of each encountered element + if ( useCache ) { + outerCache = node[ expando ] || + ( node[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + ( outerCache[ node.uniqueID ] = {} ); + + uniqueCache[ type ] = [ dirruns, diff ]; + } + + if ( node === elem ) { + break; + } } } } @@ -1751,6 +2044,7 @@ Expr = Sizzle.selectors = { }, "PSEUDO": function( pseudo, argument ) { + // pseudo-class names are case-insensitive // http://www.w3.org/TR/selectors/#pseudo-classes // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters @@ -1770,15 +2064,15 @@ Expr = Sizzle.selectors = { if ( fn.length > 1 ) { args = [ pseudo, pseudo, "", argument ]; return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ? - markFunction(function( seed, matches ) { + markFunction( function( seed, matches ) { var idx, matched = fn( seed, argument ), i = matched.length; while ( i-- ) { - idx = indexOf( seed, matched[i] ); - seed[ idx ] = !( matches[ idx ] = matched[i] ); + idx = indexOf( seed, matched[ i ] ); + seed[ idx ] = !( matches[ idx ] = matched[ i ] ); } - }) : + } ) : function( elem ) { return fn( elem, 0, args ); }; @@ -1789,8 +2083,10 @@ Expr = Sizzle.selectors = { }, pseudos: { + // Potentially complex pseudos - "not": markFunction(function( selector ) { + "not": markFunction( function( selector ) { + // Trim the selector passed to compile // to avoid treating leading and trailing // spaces as combinators @@ -1799,39 +2095,40 @@ Expr = Sizzle.selectors = { matcher = compile( selector.replace( rtrim, "$1" ) ); return matcher[ expando ] ? - markFunction(function( seed, matches, context, xml ) { + markFunction( function( seed, matches, _context, xml ) { var elem, unmatched = matcher( seed, null, xml, [] ), i = seed.length; // Match elements unmatched by `matcher` while ( i-- ) { - if ( (elem = unmatched[i]) ) { - seed[i] = !(matches[i] = elem); + if ( ( elem = unmatched[ i ] ) ) { + seed[ i ] = !( matches[ i ] = elem ); } } - }) : - function( elem, context, xml ) { - input[0] = elem; + } ) : + function( elem, _context, xml ) { + input[ 0 ] = elem; matcher( input, null, xml, results ); + // Don't keep the element (issue #299) - input[0] = null; + input[ 0 ] = null; return !results.pop(); }; - }), + } ), - "has": markFunction(function( selector ) { + "has": markFunction( function( selector ) { return function( elem ) { return Sizzle( selector, elem ).length > 0; }; - }), + } ), - "contains": markFunction(function( text ) { + "contains": markFunction( function( text ) { text = text.replace( runescape, funescape ); return function( elem ) { - return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1; + return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1; }; - }), + } ), // "Whether an element is represented by a :lang() selector // is based solely on the element's language value @@ -1841,25 +2138,26 @@ Expr = Sizzle.selectors = { // The identifier C does not have to be a valid language name." // http://www.w3.org/TR/selectors/#lang-pseudo "lang": markFunction( function( lang ) { + // lang value must be a valid identifier - if ( !ridentifier.test(lang || "") ) { + if ( !ridentifier.test( lang || "" ) ) { Sizzle.error( "unsupported lang: " + lang ); } lang = lang.replace( runescape, funescape ).toLowerCase(); return function( elem ) { var elemLang; do { - if ( (elemLang = documentIsHTML ? + if ( ( elemLang = documentIsHTML ? elem.lang : - elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) { + elem.getAttribute( "xml:lang" ) || elem.getAttribute( "lang" ) ) ) { elemLang = elemLang.toLowerCase(); return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0; } - } while ( (elem = elem.parentNode) && elem.nodeType === 1 ); + } while ( ( elem = elem.parentNode ) && elem.nodeType === 1 ); return false; }; - }), + } ), // Miscellaneous "target": function( elem ) { @@ -1872,29 +2170,30 @@ Expr = Sizzle.selectors = { }, "focus": function( elem ) { - return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex); + return elem === document.activeElement && + ( !document.hasFocus || document.hasFocus() ) && + !!( elem.type || elem.href || ~elem.tabIndex ); }, // Boolean properties - "enabled": function( elem ) { - return elem.disabled === false; - }, - - "disabled": function( elem ) { - return elem.disabled === true; - }, + "enabled": createDisabledPseudo( false ), + "disabled": createDisabledPseudo( true ), "checked": function( elem ) { + // In CSS3, :checked should return both checked and selected elements // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked var nodeName = elem.nodeName.toLowerCase(); - return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected); + return ( nodeName === "input" && !!elem.checked ) || + ( nodeName === "option" && !!elem.selected ); }, "selected": function( elem ) { + // Accessing this property makes selected-by-default // options in Safari work properly if ( elem.parentNode ) { + // eslint-disable-next-line no-unused-expressions elem.parentNode.selectedIndex; } @@ -1903,6 +2202,7 @@ Expr = Sizzle.selectors = { // Contents "empty": function( elem ) { + // http://www.w3.org/TR/selectors/#empty-pseudo // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5), // but not by others (comment: 8; processing instruction: 7; etc.) @@ -1916,7 +2216,7 @@ Expr = Sizzle.selectors = { }, "parent": function( elem ) { - return !Expr.pseudos["empty"]( elem ); + return !Expr.pseudos[ "empty" ]( elem ); }, // Element/input types @@ -1940,57 +2240,62 @@ Expr = Sizzle.selectors = { // Support: IE<8 // New HTML5 attribute values (e.g., "search") appear with elem.type === "text" - ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" ); + ( ( attr = elem.getAttribute( "type" ) ) == null || + attr.toLowerCase() === "text" ); }, // Position-in-collection - "first": createPositionalPseudo(function() { + "first": createPositionalPseudo( function() { return [ 0 ]; - }), + } ), - "last": createPositionalPseudo(function( matchIndexes, length ) { + "last": createPositionalPseudo( function( _matchIndexes, length ) { return [ length - 1 ]; - }), + } ), - "eq": createPositionalPseudo(function( matchIndexes, length, argument ) { + "eq": createPositionalPseudo( function( _matchIndexes, length, argument ) { return [ argument < 0 ? argument + length : argument ]; - }), + } ), - "even": createPositionalPseudo(function( matchIndexes, length ) { + "even": createPositionalPseudo( function( matchIndexes, length ) { var i = 0; for ( ; i < length; i += 2 ) { matchIndexes.push( i ); } return matchIndexes; - }), + } ), - "odd": createPositionalPseudo(function( matchIndexes, length ) { + "odd": createPositionalPseudo( function( matchIndexes, length ) { var i = 1; for ( ; i < length; i += 2 ) { matchIndexes.push( i ); } return matchIndexes; - }), - - "lt": createPositionalPseudo(function( matchIndexes, length, argument ) { - var i = argument < 0 ? argument + length : argument; + } ), + + "lt": createPositionalPseudo( function( matchIndexes, length, argument ) { + var i = argument < 0 ? + argument + length : + argument > length ? + length : + argument; for ( ; --i >= 0; ) { matchIndexes.push( i ); } return matchIndexes; - }), + } ), - "gt": createPositionalPseudo(function( matchIndexes, length, argument ) { + "gt": createPositionalPseudo( function( matchIndexes, length, argument ) { var i = argument < 0 ? argument + length : argument; for ( ; ++i < length; ) { matchIndexes.push( i ); } return matchIndexes; - }) + } ) } }; -Expr.pseudos["nth"] = Expr.pseudos["eq"]; +Expr.pseudos[ "nth" ] = Expr.pseudos[ "eq" ]; // Add button/input type pseudos for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) { @@ -2021,37 +2326,39 @@ tokenize = Sizzle.tokenize = function( selector, parseOnly ) { while ( soFar ) { // Comma and first run - if ( !matched || (match = rcomma.exec( soFar )) ) { + if ( !matched || ( match = rcomma.exec( soFar ) ) ) { if ( match ) { + // Don't consume trailing commas as valid - soFar = soFar.slice( match[0].length ) || soFar; + soFar = soFar.slice( match[ 0 ].length ) || soFar; } - groups.push( (tokens = []) ); + groups.push( ( tokens = [] ) ); } matched = false; // Combinators - if ( (match = rcombinators.exec( soFar )) ) { + if ( ( match = rcombinators.exec( soFar ) ) ) { matched = match.shift(); - tokens.push({ + tokens.push( { value: matched, + // Cast descendant combinators to space - type: match[0].replace( rtrim, " " ) - }); + type: match[ 0 ].replace( rtrim, " " ) + } ); soFar = soFar.slice( matched.length ); } // Filters for ( type in Expr.filter ) { - if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] || - (match = preFilters[ type ]( match ))) ) { + if ( ( match = matchExpr[ type ].exec( soFar ) ) && ( !preFilters[ type ] || + ( match = preFilters[ type ]( match ) ) ) ) { matched = match.shift(); - tokens.push({ + tokens.push( { value: matched, type: type, matches: match - }); + } ); soFar = soFar.slice( matched.length ); } } @@ -2068,6 +2375,7 @@ tokenize = Sizzle.tokenize = function( selector, parseOnly ) { soFar.length : soFar ? Sizzle.error( selector ) : + // Cache the tokens tokenCache( selector, groups ).slice( 0 ); }; @@ -2077,34 +2385,38 @@ function toSelector( tokens ) { len = tokens.length, selector = ""; for ( ; i < len; i++ ) { - selector += tokens[i].value; + selector += tokens[ i ].value; } return selector; } function addCombinator( matcher, combinator, base ) { var dir = combinator.dir, - checkNonElements = base && dir === "parentNode", + skip = combinator.next, + key = skip || dir, + checkNonElements = base && key === "parentNode", doneName = done++; return combinator.first ? + // Check against closest ancestor/preceding element function( elem, context, xml ) { - while ( (elem = elem[ dir ]) ) { + while ( ( elem = elem[ dir ] ) ) { if ( elem.nodeType === 1 || checkNonElements ) { return matcher( elem, context, xml ); } } + return false; } : // Check against all ancestor/preceding elements function( elem, context, xml ) { - var oldCache, outerCache, + var oldCache, uniqueCache, outerCache, newCache = [ dirruns, doneName ]; - // We can't set arbitrary data on XML nodes, so they don't benefit from dir caching + // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching if ( xml ) { - while ( (elem = elem[ dir ]) ) { + while ( ( elem = elem[ dir ] ) ) { if ( elem.nodeType === 1 || checkNonElements ) { if ( matcher( elem, context, xml ) ) { return true; @@ -2112,26 +2424,36 @@ function addCombinator( matcher, combinator, base ) { } } } else { - while ( (elem = elem[ dir ]) ) { + while ( ( elem = elem[ dir ] ) ) { if ( elem.nodeType === 1 || checkNonElements ) { - outerCache = elem[ expando ] || (elem[ expando ] = {}); - if ( (oldCache = outerCache[ dir ]) && + outerCache = elem[ expando ] || ( elem[ expando ] = {} ); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ elem.uniqueID ] || + ( outerCache[ elem.uniqueID ] = {} ); + + if ( skip && skip === elem.nodeName.toLowerCase() ) { + elem = elem[ dir ] || elem; + } else if ( ( oldCache = uniqueCache[ key ] ) && oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) { // Assign to newCache so results back-propagate to previous elements - return (newCache[ 2 ] = oldCache[ 2 ]); + return ( newCache[ 2 ] = oldCache[ 2 ] ); } else { + // Reuse newcache so results back-propagate to previous elements - outerCache[ dir ] = newCache; + uniqueCache[ key ] = newCache; // A match means we're done; a fail means we have to keep checking - if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) { + if ( ( newCache[ 2 ] = matcher( elem, context, xml ) ) ) { return true; } } } } } + return false; }; } @@ -2140,20 +2462,20 @@ function elementMatcher( matchers ) { function( elem, context, xml ) { var i = matchers.length; while ( i-- ) { - if ( !matchers[i]( elem, context, xml ) ) { + if ( !matchers[ i ]( elem, context, xml ) ) { return false; } } return true; } : - matchers[0]; + matchers[ 0 ]; } function multipleContexts( selector, contexts, results ) { var i = 0, len = contexts.length; for ( ; i < len; i++ ) { - Sizzle( selector, contexts[i], results ); + Sizzle( selector, contexts[ i ], results ); } return results; } @@ -2166,7 +2488,7 @@ function condense( unmatched, map, filter, context, xml ) { mapped = map != null; for ( ; i < len; i++ ) { - if ( (elem = unmatched[i]) ) { + if ( ( elem = unmatched[ i ] ) ) { if ( !filter || filter( elem, context, xml ) ) { newUnmatched.push( elem ); if ( mapped ) { @@ -2186,14 +2508,18 @@ function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postS if ( postFinder && !postFinder[ expando ] ) { postFinder = setMatcher( postFinder, postSelector ); } - return markFunction(function( seed, results, context, xml ) { + return markFunction( function( seed, results, context, xml ) { var temp, i, elem, preMap = [], postMap = [], preexisting = results.length, // Get initial elements from seed or context - elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ), + elems = seed || multipleContexts( + selector || "*", + context.nodeType ? [ context ] : context, + [] + ), // Prefilter to get matcher input, preserving a map for seed-results synchronization matcherIn = preFilter && ( seed || !selector ) ? @@ -2201,6 +2527,7 @@ function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postS elems, matcherOut = matcher ? + // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results, postFinder || ( seed ? preFilter : preexisting || postFilter ) ? @@ -2224,8 +2551,8 @@ function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postS // Un-match failing elements by moving them back to matcherIn i = temp.length; while ( i-- ) { - if ( (elem = temp[i]) ) { - matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem); + if ( ( elem = temp[ i ] ) ) { + matcherOut[ postMap[ i ] ] = !( matcherIn[ postMap[ i ] ] = elem ); } } } @@ -2233,25 +2560,27 @@ function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postS if ( seed ) { if ( postFinder || preFilter ) { if ( postFinder ) { + // Get the final matcherOut by condensing this intermediate into postFinder contexts temp = []; i = matcherOut.length; while ( i-- ) { - if ( (elem = matcherOut[i]) ) { + if ( ( elem = matcherOut[ i ] ) ) { + // Restore matcherIn since elem is not yet a final match - temp.push( (matcherIn[i] = elem) ); + temp.push( ( matcherIn[ i ] = elem ) ); } } - postFinder( null, (matcherOut = []), temp, xml ); + postFinder( null, ( matcherOut = [] ), temp, xml ); } // Move matched elements from seed to results to keep them synchronized i = matcherOut.length; while ( i-- ) { - if ( (elem = matcherOut[i]) && - (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) { + if ( ( elem = matcherOut[ i ] ) && + ( temp = postFinder ? indexOf( seed, elem ) : preMap[ i ] ) > -1 ) { - seed[temp] = !(results[temp] = elem); + seed[ temp ] = !( results[ temp ] = elem ); } } } @@ -2269,14 +2598,14 @@ function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postS push.apply( results, matcherOut ); } } - }); + } ); } function matcherFromTokens( tokens ) { var checkContext, matcher, j, len = tokens.length, - leadingRelative = Expr.relative[ tokens[0].type ], - implicitRelative = leadingRelative || Expr.relative[" "], + leadingRelative = Expr.relative[ tokens[ 0 ].type ], + implicitRelative = leadingRelative || Expr.relative[ " " ], i = leadingRelative ? 1 : 0, // The foundational matcher ensures that elements are reachable from top-level context(s) @@ -2288,38 +2617,43 @@ function matcherFromTokens( tokens ) { }, implicitRelative, true ), matchers = [ function( elem, context, xml ) { var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || ( - (checkContext = context).nodeType ? + ( checkContext = context ).nodeType ? matchContext( elem, context, xml ) : matchAnyContext( elem, context, xml ) ); + // Avoid hanging onto element (issue #299) checkContext = null; return ret; } ]; for ( ; i < len; i++ ) { - if ( (matcher = Expr.relative[ tokens[i].type ]) ) { - matchers = [ addCombinator(elementMatcher( matchers ), matcher) ]; + if ( ( matcher = Expr.relative[ tokens[ i ].type ] ) ) { + matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ]; } else { - matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches ); + matcher = Expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches ); // Return special upon seeing a positional matcher if ( matcher[ expando ] ) { + // Find the next relative operator (if any) for proper handling j = ++i; for ( ; j < len; j++ ) { - if ( Expr.relative[ tokens[j].type ] ) { + if ( Expr.relative[ tokens[ j ].type ] ) { break; } } return setMatcher( i > 1 && elementMatcher( matchers ), i > 1 && toSelector( - // If the preceding token was a descendant combinator, insert an implicit any-element `*` - tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" }) + + // If the preceding token was a descendant combinator, insert an implicit any-element `*` + tokens + .slice( 0, i - 1 ) + .concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } ) ).replace( rtrim, "$1" ), matcher, i < j && matcherFromTokens( tokens.slice( i, j ) ), - j < len && matcherFromTokens( (tokens = tokens.slice( j )) ), + j < len && matcherFromTokens( ( tokens = tokens.slice( j ) ) ), j < len && toSelector( tokens ) ); } @@ -2340,25 +2674,40 @@ function matcherFromGroupMatchers( elementMatchers, setMatchers ) { unmatched = seed && [], setMatched = [], contextBackup = outermostContext, + // We must always have either seed elements or outermost context - elems = seed || byElement && Expr.find["TAG"]( "*", outermost ), + elems = seed || byElement && Expr.find[ "TAG" ]( "*", outermost ), + // Use integer dirruns iff this is the outermost matcher - dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1), + dirrunsUnique = ( dirruns += contextBackup == null ? 1 : Math.random() || 0.1 ), len = elems.length; if ( outermost ) { - outermostContext = context !== document && context; + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + outermostContext = context == document || context || outermost; } // Add elements passing elementMatchers directly to results - // Keep `i` a string if there are no elements so `matchedCount` will be "00" below // Support: IE<9, Safari // Tolerate NodeList properties (IE: "length"; Safari: ) matching elements by id - for ( ; i !== len && (elem = elems[i]) != null; i++ ) { + for ( ; i !== len && ( elem = elems[ i ] ) != null; i++ ) { if ( byElement && elem ) { j = 0; - while ( (matcher = elementMatchers[j++]) ) { - if ( matcher( elem, context, xml ) ) { + + // Support: IE 11+, Edge 17 - 18+ + // IE/Edge sometimes throw a "Permission denied" error when strict-comparing + // two documents; shallow comparisons work. + // eslint-disable-next-line eqeqeq + if ( !context && elem.ownerDocument != document ) { + setDocument( elem ); + xml = !documentIsHTML; + } + while ( ( matcher = elementMatchers[ j++ ] ) ) { + if ( matcher( elem, context || document, xml ) ) { results.push( elem ); break; } @@ -2370,8 +2719,9 @@ function matcherFromGroupMatchers( elementMatchers, setMatchers ) { // Track unmatched elements for set filters if ( bySet ) { + // They will have gone through all possible matchers - if ( (elem = !matcher && elem) ) { + if ( ( elem = !matcher && elem ) ) { matchedCount--; } @@ -2382,20 +2732,30 @@ function matcherFromGroupMatchers( elementMatchers, setMatchers ) { } } - // Apply set filters to unmatched elements + // `i` is now the count of elements visited above, and adding it to `matchedCount` + // makes the latter nonnegative. matchedCount += i; + + // Apply set filters to unmatched elements + // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount` + // equals `i`), unless we didn't visit _any_ elements in the above loop because we have + // no element matchers and no seed. + // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that + // case, which will result in a "00" `matchedCount` that differs from `i` but is also + // numerically zero. if ( bySet && i !== matchedCount ) { j = 0; - while ( (matcher = setMatchers[j++]) ) { + while ( ( matcher = setMatchers[ j++ ] ) ) { matcher( unmatched, setMatched, context, xml ); } if ( seed ) { + // Reintegrate element matches to eliminate the need for sorting if ( matchedCount > 0 ) { while ( i-- ) { - if ( !(unmatched[i] || setMatched[i]) ) { - setMatched[i] = pop.call( results ); + if ( !( unmatched[ i ] || setMatched[ i ] ) ) { + setMatched[ i ] = pop.call( results ); } } } @@ -2436,13 +2796,14 @@ compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { cached = compilerCache[ selector + " " ]; if ( !cached ) { + // Generate a function of recursive functions that can be used to check each element if ( !match ) { match = tokenize( selector ); } i = match.length; while ( i-- ) { - cached = matcherFromTokens( match[i] ); + cached = matcherFromTokens( match[ i ] ); if ( cached[ expando ] ) { setMatchers.push( cached ); } else { @@ -2451,7 +2812,10 @@ compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { } // Cache the compiled function - cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) ); + cached = compilerCache( + selector, + matcherFromGroupMatchers( elementMatchers, setMatchers ) + ); // Save selector and tokenization cached.selector = selector; @@ -2471,20 +2835,21 @@ compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { select = Sizzle.select = function( selector, context, results, seed ) { var i, tokens, token, type, find, compiled = typeof selector === "function" && selector, - match = !seed && tokenize( (selector = compiled.selector || selector) ); + match = !seed && tokenize( ( selector = compiled.selector || selector ) ); results = results || []; - // Try to minimize operations if there is no seed and only one group + // Try to minimize operations if there is only one selector in the list and no seed + // (the latter of which guarantees us context) if ( match.length === 1 ) { - // Take a shortcut and set the context if the root selector is an ID - tokens = match[0] = match[0].slice( 0 ); - if ( tokens.length > 2 && (token = tokens[0]).type === "ID" && - support.getById && context.nodeType === 9 && documentIsHTML && - Expr.relative[ tokens[1].type ] ) { + // Reduce context if the leading compound selector is an ID + tokens = match[ 0 ] = match[ 0 ].slice( 0 ); + if ( tokens.length > 2 && ( token = tokens[ 0 ] ).type === "ID" && + context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[ 1 ].type ] ) { - context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0]; + context = ( Expr.find[ "ID" ]( token.matches[ 0 ] + .replace( runescape, funescape ), context ) || [] )[ 0 ]; if ( !context ) { return results; @@ -2497,20 +2862,22 @@ select = Sizzle.select = function( selector, context, results, seed ) { } // Fetch a seed set for right-to-left matching - i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length; + i = matchExpr[ "needsContext" ].test( selector ) ? 0 : tokens.length; while ( i-- ) { - token = tokens[i]; + token = tokens[ i ]; // Abort if we hit a combinator - if ( Expr.relative[ (type = token.type) ] ) { + if ( Expr.relative[ ( type = token.type ) ] ) { break; } - if ( (find = Expr.find[ type ]) ) { + if ( ( find = Expr.find[ type ] ) ) { + // Search, expanding context for leading sibling combinators - if ( (seed = find( - token.matches[0].replace( runescape, funescape ), - rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context - )) ) { + if ( ( seed = find( + token.matches[ 0 ].replace( runescape, funescape ), + rsibling.test( tokens[ 0 ].type ) && testContext( context.parentNode ) || + context + ) ) ) { // If seed is empty or no tokens remain, we can return early tokens.splice( i, 1 ); @@ -2533,7 +2900,7 @@ select = Sizzle.select = function( selector, context, results, seed ) { context, !documentIsHTML, results, - rsibling.test( selector ) && testContext( context.parentNode ) || context + !context || rsibling.test( selector ) && testContext( context.parentNode ) || context ); return results; }; @@ -2541,7 +2908,7 @@ select = Sizzle.select = function( selector, context, results, seed ) { // One-time assignments // Sort stability -support.sortStable = expando.split("").sort( sortOrder ).join("") === expando; +support.sortStable = expando.split( "" ).sort( sortOrder ).join( "" ) === expando; // Support: Chrome 14-35+ // Always assume duplicates if they aren't passed to the comparison function @@ -2552,107 +2919,142 @@ setDocument(); // Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27) // Detached nodes confoundingly follow *each other* -support.sortDetached = assert(function( div1 ) { +support.sortDetached = assert( function( el ) { + // Should return 1, but returns 4 (following) - return div1.compareDocumentPosition( document.createElement("div") ) & 1; -}); + return el.compareDocumentPosition( document.createElement( "fieldset" ) ) & 1; +} ); // Support: IE<8 // Prevent attribute/property "interpolation" -// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx -if ( !assert(function( div ) { - div.innerHTML = ""; - return div.firstChild.getAttribute("href") === "#" ; -}) ) { +// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx +if ( !assert( function( el ) { + el.innerHTML = ""; + return el.firstChild.getAttribute( "href" ) === "#"; +} ) ) { addHandle( "type|href|height|width", function( elem, name, isXML ) { if ( !isXML ) { return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 ); } - }); + } ); } // Support: IE<9 // Use defaultValue in place of getAttribute("value") -if ( !support.attributes || !assert(function( div ) { - div.innerHTML = ""; - div.firstChild.setAttribute( "value", "" ); - return div.firstChild.getAttribute( "value" ) === ""; -}) ) { - addHandle( "value", function( elem, name, isXML ) { +if ( !support.attributes || !assert( function( el ) { + el.innerHTML = ""; + el.firstChild.setAttribute( "value", "" ); + return el.firstChild.getAttribute( "value" ) === ""; +} ) ) { + addHandle( "value", function( elem, _name, isXML ) { if ( !isXML && elem.nodeName.toLowerCase() === "input" ) { return elem.defaultValue; } - }); + } ); } // Support: IE<9 // Use getAttributeNode to fetch booleans when getAttribute lies -if ( !assert(function( div ) { - return div.getAttribute("disabled") == null; -}) ) { +if ( !assert( function( el ) { + return el.getAttribute( "disabled" ) == null; +} ) ) { addHandle( booleans, function( elem, name, isXML ) { var val; if ( !isXML ) { return elem[ name ] === true ? name.toLowerCase() : - (val = elem.getAttributeNode( name )) && val.specified ? + ( val = elem.getAttributeNode( name ) ) && val.specified ? val.value : - null; + null; } - }); + } ); } return Sizzle; -})( window ); +} )( window ); jQuery.find = Sizzle; jQuery.expr = Sizzle.selectors; -jQuery.expr[":"] = jQuery.expr.pseudos; -jQuery.unique = Sizzle.uniqueSort; + +// Deprecated +jQuery.expr[ ":" ] = jQuery.expr.pseudos; +jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort; jQuery.text = Sizzle.getText; jQuery.isXMLDoc = Sizzle.isXML; jQuery.contains = Sizzle.contains; +jQuery.escapeSelector = Sizzle.escape; + + + + +var dir = function( elem, dir, until ) { + var matched = [], + truncate = until !== undefined; + while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) { + if ( elem.nodeType === 1 ) { + if ( truncate && jQuery( elem ).is( until ) ) { + break; + } + matched.push( elem ); + } + } + return matched; +}; + + +var siblings = function( n, elem ) { + var matched = []; + + for ( ; n; n = n.nextSibling ) { + if ( n.nodeType === 1 && n !== elem ) { + matched.push( n ); + } + } + + return matched; +}; var rneedsContext = jQuery.expr.match.needsContext; -var rsingleTag = (/^<(\w+)\s*\/?>(?:<\/\1>|)$/); +function nodeName( elem, name ) { + + return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase(); + +}; +var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i ); + -var risSimple = /^.[^:#\[\.,]*$/; // Implement the identical functionality for filter and not function winnow( elements, qualifier, not ) { - if ( jQuery.isFunction( qualifier ) ) { + if ( isFunction( qualifier ) ) { return jQuery.grep( elements, function( elem, i ) { - /* jshint -W018 */ return !!qualifier.call( elem, i, elem ) !== not; - }); - + } ); } + // Single element if ( qualifier.nodeType ) { return jQuery.grep( elements, function( elem ) { return ( elem === qualifier ) !== not; - }); - + } ); } - if ( typeof qualifier === "string" ) { - if ( risSimple.test( qualifier ) ) { - return jQuery.filter( qualifier, elements, not ); - } - - qualifier = jQuery.filter( qualifier, elements ); + // Arraylike of elements (jQuery, arguments, Array) + if ( typeof qualifier !== "string" ) { + return jQuery.grep( elements, function( elem ) { + return ( indexOf.call( qualifier, elem ) > -1 ) !== not; + } ); } - return jQuery.grep( elements, function( elem ) { - return ( indexOf.call( qualifier, elem ) >= 0 ) !== not; - }); + // Filtered directly for both simple and complex selectors + return jQuery.filter( qualifier, elements, not ); } jQuery.filter = function( expr, elems, not ) { @@ -2662,44 +3064,44 @@ jQuery.filter = function( expr, elems, not ) { expr = ":not(" + expr + ")"; } - return elems.length === 1 && elem.nodeType === 1 ? - jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] : - jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) { - return elem.nodeType === 1; - })); + if ( elems.length === 1 && elem.nodeType === 1 ) { + return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : []; + } + + return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) { + return elem.nodeType === 1; + } ) ); }; -jQuery.fn.extend({ +jQuery.fn.extend( { find: function( selector ) { - var i, + var i, ret, len = this.length, - ret = [], self = this; if ( typeof selector !== "string" ) { - return this.pushStack( jQuery( selector ).filter(function() { + return this.pushStack( jQuery( selector ).filter( function() { for ( i = 0; i < len; i++ ) { if ( jQuery.contains( self[ i ], this ) ) { return true; } } - }) ); + } ) ); } + ret = this.pushStack( [] ); + for ( i = 0; i < len; i++ ) { jQuery.find( selector, self[ i ], ret ); } - // Needed because $( selector, context ) becomes $( context ).find( selector ) - ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret ); - ret.selector = this.selector ? this.selector + " " + selector : selector; - return ret; + return len > 1 ? jQuery.uniqueSort( ret ) : ret; }, filter: function( selector ) { - return this.pushStack( winnow(this, selector || [], false) ); + return this.pushStack( winnow( this, selector || [], false ) ); }, not: function( selector ) { - return this.pushStack( winnow(this, selector || [], true) ); + return this.pushStack( winnow( this, selector || [], true ) ); }, is: function( selector ) { return !!winnow( @@ -2713,7 +3115,7 @@ jQuery.fn.extend({ false ).length; } -}); +} ); // Initialize a jQuery object @@ -2725,9 +3127,10 @@ var rootjQuery, // A simple way to check for HTML strings // Prioritize #id over to avoid XSS via location.hash (#9521) // Strict HTML recognition (#11290: must start with <) - rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/, + // Shortcut simple #id case for speed + rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/, - init = jQuery.fn.init = function( selector, context ) { + init = jQuery.fn.init = function( selector, context, root ) { var match, elem; // HANDLE: $(""), $(null), $(undefined), $(false) @@ -2735,9 +3138,16 @@ var rootjQuery, return this; } + // Method init() accepts an alternate rootjQuery + // so migrate can support jQuery.sub (gh-2101) + root = root || rootjQuery; + // Handle HTML strings if ( typeof selector === "string" ) { - if ( selector[0] === "<" && selector[ selector.length - 1 ] === ">" && selector.length >= 3 ) { + if ( selector[ 0 ] === "<" && + selector[ selector.length - 1 ] === ">" && + selector.length >= 3 ) { + // Assume that strings that start and end with <> are HTML and skip the regex check match = [ null, selector, null ]; @@ -2746,25 +3156,26 @@ var rootjQuery, } // Match html or make sure no context is specified for #id - if ( match && (match[1] || !context) ) { + if ( match && ( match[ 1 ] || !context ) ) { // HANDLE: $(html) -> $(array) - if ( match[1] ) { - context = context instanceof jQuery ? context[0] : context; + if ( match[ 1 ] ) { + context = context instanceof jQuery ? context[ 0 ] : context; // Option to run scripts is true for back-compat // Intentionally let the error be thrown if parseHTML is not present jQuery.merge( this, jQuery.parseHTML( - match[1], + match[ 1 ], context && context.nodeType ? context.ownerDocument || context : document, true ) ); // HANDLE: $(html, props) - if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) { + if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) { for ( match in context ) { + // Properties of context are called as methods if possible - if ( jQuery.isFunction( this[ match ] ) ) { + if ( isFunction( this[ match ] ) ) { this[ match ]( context[ match ] ); // ...and otherwise set as attributes @@ -2778,24 +3189,20 @@ var rootjQuery, // HANDLE: $(#id) } else { - elem = document.getElementById( match[2] ); + elem = document.getElementById( match[ 2 ] ); + + if ( elem ) { - // Support: Blackberry 4.6 - // gEBID returns nodes no longer in the document (#6963) - if ( elem && elem.parentNode ) { // Inject the element directly into the jQuery object + this[ 0 ] = elem; this.length = 1; - this[0] = elem; } - - this.context = document; - this.selector = selector; return this; } // HANDLE: $(expr, $(...)) } else if ( !context || context.jquery ) { - return ( context || rootjQuery ).find( selector ); + return ( context || root ).find( selector ); // HANDLE: $(expr, context) // (which is just equivalent to: $(context).find(expr) @@ -2805,24 +3212,20 @@ var rootjQuery, // HANDLE: $(DOMElement) } else if ( selector.nodeType ) { - this.context = this[0] = selector; + this[ 0 ] = selector; this.length = 1; return this; // HANDLE: $(function) // Shortcut for document ready - } else if ( jQuery.isFunction( selector ) ) { - return typeof rootjQuery.ready !== "undefined" ? - rootjQuery.ready( selector ) : + } else if ( isFunction( selector ) ) { + return root.ready !== undefined ? + root.ready( selector ) : + // Execute immediately if ready is not present selector( jQuery ); } - if ( selector.selector !== undefined ) { - this.selector = selector.selector; - this.context = selector.context; - } - return jQuery.makeArray( selector, this ); }; @@ -2834,6 +3237,7 @@ rootjQuery = jQuery( document ); var rparentsprev = /^(?:parents|prev(?:Until|All))/, + // Methods guaranteed to produce a unique set when starting from a unique set guaranteedUnique = { children: true, @@ -2842,48 +3246,19 @@ var rparentsprev = /^(?:parents|prev(?:Until|All))/, prev: true }; -jQuery.extend({ - dir: function( elem, dir, until ) { - var matched = [], - truncate = until !== undefined; - - while ( (elem = elem[ dir ]) && elem.nodeType !== 9 ) { - if ( elem.nodeType === 1 ) { - if ( truncate && jQuery( elem ).is( until ) ) { - break; - } - matched.push( elem ); - } - } - return matched; - }, - - sibling: function( n, elem ) { - var matched = []; - - for ( ; n; n = n.nextSibling ) { - if ( n.nodeType === 1 && n !== elem ) { - matched.push( n ); - } - } - - return matched; - } -}); - -jQuery.fn.extend({ +jQuery.fn.extend( { has: function( target ) { var targets = jQuery( target, this ), l = targets.length; - return this.filter(function() { + return this.filter( function() { var i = 0; for ( ; i < l; i++ ) { - if ( jQuery.contains( this, targets[i] ) ) { + if ( jQuery.contains( this, targets[ i ] ) ) { return true; } } - }); + } ); }, closest: function( selectors, context ) { @@ -2891,27 +3266,29 @@ jQuery.fn.extend({ i = 0, l = this.length, matched = [], - pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ? - jQuery( selectors, context || this.context ) : - 0; + targets = typeof selectors !== "string" && jQuery( selectors ); + + // Positional selectors never match, since there's no _selection_ context + if ( !rneedsContext.test( selectors ) ) { + for ( ; i < l; i++ ) { + for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) { - for ( ; i < l; i++ ) { - for ( cur = this[i]; cur && cur !== context; cur = cur.parentNode ) { - // Always skip document fragments - if ( cur.nodeType < 11 && (pos ? - pos.index(cur) > -1 : + // Always skip document fragments + if ( cur.nodeType < 11 && ( targets ? + targets.index( cur ) > -1 : - // Don't pass non-elements to Sizzle - cur.nodeType === 1 && - jQuery.find.matchesSelector(cur, selectors)) ) { + // Don't pass non-elements to Sizzle + cur.nodeType === 1 && + jQuery.find.matchesSelector( cur, selectors ) ) ) { - matched.push( cur ); - break; + matched.push( cur ); + break; + } } } } - return this.pushStack( matched.length > 1 ? jQuery.unique( matched ) : matched ); + return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched ); }, // Determine the position of an element within the set @@ -2937,7 +3314,7 @@ jQuery.fn.extend({ add: function( selector, context ) { return this.pushStack( - jQuery.unique( + jQuery.uniqueSort( jQuery.merge( this.get(), jQuery( selector, context ) ) ) ); @@ -2945,26 +3322,26 @@ jQuery.fn.extend({ addBack: function( selector ) { return this.add( selector == null ? - this.prevObject : this.prevObject.filter(selector) + this.prevObject : this.prevObject.filter( selector ) ); } -}); +} ); function sibling( cur, dir ) { - while ( (cur = cur[dir]) && cur.nodeType !== 1 ) {} + while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {} return cur; } -jQuery.each({ +jQuery.each( { parent: function( elem ) { var parent = elem.parentNode; return parent && parent.nodeType !== 11 ? parent : null; }, parents: function( elem ) { - return jQuery.dir( elem, "parentNode" ); + return dir( elem, "parentNode" ); }, - parentsUntil: function( elem, i, until ) { - return jQuery.dir( elem, "parentNode", until ); + parentsUntil: function( elem, _i, until ) { + return dir( elem, "parentNode", until ); }, next: function( elem ) { return sibling( elem, "nextSibling" ); @@ -2973,25 +3350,42 @@ jQuery.each({ return sibling( elem, "previousSibling" ); }, nextAll: function( elem ) { - return jQuery.dir( elem, "nextSibling" ); + return dir( elem, "nextSibling" ); }, prevAll: function( elem ) { - return jQuery.dir( elem, "previousSibling" ); + return dir( elem, "previousSibling" ); }, - nextUntil: function( elem, i, until ) { - return jQuery.dir( elem, "nextSibling", until ); + nextUntil: function( elem, _i, until ) { + return dir( elem, "nextSibling", until ); }, - prevUntil: function( elem, i, until ) { - return jQuery.dir( elem, "previousSibling", until ); + prevUntil: function( elem, _i, until ) { + return dir( elem, "previousSibling", until ); }, siblings: function( elem ) { - return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem ); + return siblings( ( elem.parentNode || {} ).firstChild, elem ); }, children: function( elem ) { - return jQuery.sibling( elem.firstChild ); + return siblings( elem.firstChild ); }, contents: function( elem ) { - return elem.contentDocument || jQuery.merge( [], elem.childNodes ); + if ( elem.contentDocument != null && + + // Support: IE 11+ + // elements with no `data` attribute has an object + // `contentDocument` with a `null` prototype. + getProto( elem.contentDocument ) ) { + + return elem.contentDocument; + } + + // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only + // Treat the template element as a regular one in browsers that + // don't support it. + if ( nodeName( elem, "template" ) ) { + elem = elem.content || elem; + } + + return jQuery.merge( [], elem.childNodes ); } }, function( name, fn ) { jQuery.fn[ name ] = function( until, selector ) { @@ -3006,9 +3400,10 @@ jQuery.each({ } if ( this.length > 1 ) { + // Remove duplicates if ( !guaranteedUnique[ name ] ) { - jQuery.unique( matched ); + jQuery.uniqueSort( matched ); } // Reverse order for parents* and prev-derivatives @@ -3019,20 +3414,17 @@ jQuery.each({ return this.pushStack( matched ); }; -}); -var rnotwhite = (/\S+/g); - +} ); +var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g ); -// String to Object options format cache -var optionsCache = {}; -// Convert String-formatted options into Object-formatted ones and store in cache +// Convert String-formatted options into Object-formatted ones function createOptions( options ) { - var object = optionsCache[ options ] = {}; - jQuery.each( options.match( rnotwhite ) || [], function( _, flag ) { + var object = {}; + jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) { object[ flag ] = true; - }); + } ); return object; } @@ -3063,156 +3455,186 @@ jQuery.Callbacks = function( options ) { // Convert options from String-formatted to Object-formatted if needed // (we check in cache first) options = typeof options === "string" ? - ( optionsCache[ options ] || createOptions( options ) ) : + createOptions( options ) : jQuery.extend( {}, options ); - var // Last fire value (for non-forgettable lists) + var // Flag to know if list is currently firing + firing, + + // Last fire value for non-forgettable lists memory, + // Flag to know if list was already fired fired, - // Flag to know if list is currently firing - firing, - // First callback to fire (used internally by add and fireWith) - firingStart, - // End of the loop when firing - firingLength, - // Index of currently firing callback (modified by remove if needed) - firingIndex, + + // Flag to prevent firing + locked, + // Actual callback list list = [], - // Stack of fire calls for repeatable lists - stack = !options.once && [], + + // Queue of execution data for repeatable lists + queue = [], + + // Index of currently firing callback (modified by add/remove as needed) + firingIndex = -1, + // Fire callbacks - fire = function( data ) { - memory = options.memory && data; - fired = true; - firingIndex = firingStart || 0; - firingStart = 0; - firingLength = list.length; - firing = true; - for ( ; list && firingIndex < firingLength; firingIndex++ ) { - if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) { - memory = false; // To prevent further calls using add - break; + fire = function() { + + // Enforce single-firing + locked = locked || options.once; + + // Execute callbacks for all pending executions, + // respecting firingIndex overrides and runtime changes + fired = firing = true; + for ( ; queue.length; firingIndex = -1 ) { + memory = queue.shift(); + while ( ++firingIndex < list.length ) { + + // Run callback and check for early termination + if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false && + options.stopOnFalse ) { + + // Jump to end and forget the data so .add doesn't re-fire + firingIndex = list.length; + memory = false; + } } } + + // Forget the data if we're done with it + if ( !options.memory ) { + memory = false; + } + firing = false; - if ( list ) { - if ( stack ) { - if ( stack.length ) { - fire( stack.shift() ); - } - } else if ( memory ) { + + // Clean up if we're done firing for good + if ( locked ) { + + // Keep an empty list if we have data for future add calls + if ( memory ) { list = []; + + // Otherwise, this object is spent } else { - self.disable(); + list = ""; } } }, + // Actual Callbacks object self = { + // Add a callback or a collection of callbacks to the list add: function() { if ( list ) { - // First, we save the current length - var start = list.length; - (function add( args ) { + + // If we have memory from a past run, we should fire after adding + if ( memory && !firing ) { + firingIndex = list.length - 1; + queue.push( memory ); + } + + ( function add( args ) { jQuery.each( args, function( _, arg ) { - var type = jQuery.type( arg ); - if ( type === "function" ) { + if ( isFunction( arg ) ) { if ( !options.unique || !self.has( arg ) ) { list.push( arg ); } - } else if ( arg && arg.length && type !== "string" ) { + } else if ( arg && arg.length && toType( arg ) !== "string" ) { + // Inspect recursively add( arg ); } - }); - })( arguments ); - // Do we need to add the callbacks to the - // current firing batch? - if ( firing ) { - firingLength = list.length; - // With memory, if we're not firing then - // we should call right away - } else if ( memory ) { - firingStart = start; - fire( memory ); + } ); + } )( arguments ); + + if ( memory && !firing ) { + fire(); } } return this; }, + // Remove a callback from the list remove: function() { - if ( list ) { - jQuery.each( arguments, function( _, arg ) { - var index; - while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) { - list.splice( index, 1 ); - // Handle firing indexes - if ( firing ) { - if ( index <= firingLength ) { - firingLength--; - } - if ( index <= firingIndex ) { - firingIndex--; - } - } + jQuery.each( arguments, function( _, arg ) { + var index; + while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) { + list.splice( index, 1 ); + + // Handle firing indexes + if ( index <= firingIndex ) { + firingIndex--; } - }); - } + } + } ); return this; }, + // Check if a given callback is in the list. // If no argument is given, return whether or not list has callbacks attached. has: function( fn ) { - return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length ); + return fn ? + jQuery.inArray( fn, list ) > -1 : + list.length > 0; }, + // Remove all callbacks from the list empty: function() { - list = []; - firingLength = 0; + if ( list ) { + list = []; + } return this; }, - // Have the list do nothing anymore + + // Disable .fire and .add + // Abort any current/pending executions + // Clear all callbacks and values disable: function() { - list = stack = memory = undefined; + locked = queue = []; + list = memory = ""; return this; }, - // Is it disabled? disabled: function() { return !list; }, - // Lock the list in its current state + + // Disable .fire + // Also disable .add unless we have memory (since it would have no effect) + // Abort any pending executions lock: function() { - stack = undefined; - if ( !memory ) { - self.disable(); + locked = queue = []; + if ( !memory && !firing ) { + list = memory = ""; } return this; }, - // Is it locked? locked: function() { - return !stack; + return !!locked; }, + // Call all callbacks with the given context and arguments fireWith: function( context, args ) { - if ( list && ( !fired || stack ) ) { + if ( !locked ) { args = args || []; args = [ context, args.slice ? args.slice() : args ]; - if ( firing ) { - stack.push( args ); - } else { - fire( args ); + queue.push( args ); + if ( !firing ) { + fire(); } } return this; }, + // Call all the callbacks with the given arguments fire: function() { self.fireWith( this, arguments ); return this; }, + // To know if the callbacks have already been called at least once fired: function() { return !!fired; @@ -3223,14 +3645,59 @@ jQuery.Callbacks = function( options ) { }; -jQuery.extend({ +function Identity( v ) { + return v; +} +function Thrower( ex ) { + throw ex; +} + +function adoptValue( value, resolve, reject, noValue ) { + var method; + + try { + + // Check for promise aspect first to privilege synchronous behavior + if ( value && isFunction( ( method = value.promise ) ) ) { + method.call( value ).done( resolve ).fail( reject ); + + // Other thenables + } else if ( value && isFunction( ( method = value.then ) ) ) { + method.call( value, resolve, reject ); + + // Other non-thenables + } else { + + // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer: + // * false: [ value ].slice( 0 ) => resolve( value ) + // * true: [ value ].slice( 1 ) => resolve() + resolve.apply( undefined, [ value ].slice( noValue ) ); + } + + // For Promises/A+, convert exceptions into rejections + // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in + // Deferred#then to conditionally suppress rejection. + } catch ( value ) { + + // Support: Android 4.0 only + // Strict mode functions invoked without .call/.apply get global-object context + reject.apply( undefined, [ value ] ); + } +} + +jQuery.extend( { Deferred: function( func ) { var tuples = [ - // action, add listener, listener list, final state - [ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ], - [ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ], - [ "notify", "progress", jQuery.Callbacks("memory") ] + + // action, add listener, callbacks, + // ... .then handlers, argument index, [final state] + [ "notify", "progress", jQuery.Callbacks( "memory" ), + jQuery.Callbacks( "memory" ), 2 ], + [ "resolve", "done", jQuery.Callbacks( "once memory" ), + jQuery.Callbacks( "once memory" ), 0, "resolved" ], + [ "reject", "fail", jQuery.Callbacks( "once memory" ), + jQuery.Callbacks( "once memory" ), 1, "rejected" ] ], state = "pending", promise = { @@ -3241,27 +3708,206 @@ jQuery.extend({ deferred.done( arguments ).fail( arguments ); return this; }, - then: function( /* fnDone, fnFail, fnProgress */ ) { + "catch": function( fn ) { + return promise.then( null, fn ); + }, + + // Keep pipe for back-compat + pipe: function( /* fnDone, fnFail, fnProgress */ ) { var fns = arguments; - return jQuery.Deferred(function( newDefer ) { - jQuery.each( tuples, function( i, tuple ) { - var fn = jQuery.isFunction( fns[ i ] ) && fns[ i ]; - // deferred[ done | fail | progress ] for forwarding actions to newDefer - deferred[ tuple[1] ](function() { + + return jQuery.Deferred( function( newDefer ) { + jQuery.each( tuples, function( _i, tuple ) { + + // Map tuples (progress, done, fail) to arguments (done, fail, progress) + var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ]; + + // deferred.progress(function() { bind to newDefer or newDefer.notify }) + // deferred.done(function() { bind to newDefer or newDefer.resolve }) + // deferred.fail(function() { bind to newDefer or newDefer.reject }) + deferred[ tuple[ 1 ] ]( function() { var returned = fn && fn.apply( this, arguments ); - if ( returned && jQuery.isFunction( returned.promise ) ) { + if ( returned && isFunction( returned.promise ) ) { returned.promise() + .progress( newDefer.notify ) .done( newDefer.resolve ) - .fail( newDefer.reject ) - .progress( newDefer.notify ); + .fail( newDefer.reject ); } else { - newDefer[ tuple[ 0 ] + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments ); + newDefer[ tuple[ 0 ] + "With" ]( + this, + fn ? [ returned ] : arguments + ); } - }); - }); + } ); + } ); fns = null; - }).promise(); + } ).promise(); + }, + then: function( onFulfilled, onRejected, onProgress ) { + var maxDepth = 0; + function resolve( depth, deferred, handler, special ) { + return function() { + var that = this, + args = arguments, + mightThrow = function() { + var returned, then; + + // Support: Promises/A+ section 2.3.3.3.3 + // https://promisesaplus.com/#point-59 + // Ignore double-resolution attempts + if ( depth < maxDepth ) { + return; + } + + returned = handler.apply( that, args ); + + // Support: Promises/A+ section 2.3.1 + // https://promisesaplus.com/#point-48 + if ( returned === deferred.promise() ) { + throw new TypeError( "Thenable self-resolution" ); + } + + // Support: Promises/A+ sections 2.3.3.1, 3.5 + // https://promisesaplus.com/#point-54 + // https://promisesaplus.com/#point-75 + // Retrieve `then` only once + then = returned && + + // Support: Promises/A+ section 2.3.4 + // https://promisesaplus.com/#point-64 + // Only check objects and functions for thenability + ( typeof returned === "object" || + typeof returned === "function" ) && + returned.then; + + // Handle a returned thenable + if ( isFunction( then ) ) { + + // Special processors (notify) just wait for resolution + if ( special ) { + then.call( + returned, + resolve( maxDepth, deferred, Identity, special ), + resolve( maxDepth, deferred, Thrower, special ) + ); + + // Normal processors (resolve) also hook into progress + } else { + + // ...and disregard older resolution values + maxDepth++; + + then.call( + returned, + resolve( maxDepth, deferred, Identity, special ), + resolve( maxDepth, deferred, Thrower, special ), + resolve( maxDepth, deferred, Identity, + deferred.notifyWith ) + ); + } + + // Handle all other returned values + } else { + + // Only substitute handlers pass on context + // and multiple values (non-spec behavior) + if ( handler !== Identity ) { + that = undefined; + args = [ returned ]; + } + + // Process the value(s) + // Default process is resolve + ( special || deferred.resolveWith )( that, args ); + } + }, + + // Only normal processors (resolve) catch and reject exceptions + process = special ? + mightThrow : + function() { + try { + mightThrow(); + } catch ( e ) { + + if ( jQuery.Deferred.exceptionHook ) { + jQuery.Deferred.exceptionHook( e, + process.stackTrace ); + } + + // Support: Promises/A+ section 2.3.3.3.4.1 + // https://promisesaplus.com/#point-61 + // Ignore post-resolution exceptions + if ( depth + 1 >= maxDepth ) { + + // Only substitute handlers pass on context + // and multiple values (non-spec behavior) + if ( handler !== Thrower ) { + that = undefined; + args = [ e ]; + } + + deferred.rejectWith( that, args ); + } + } + }; + + // Support: Promises/A+ section 2.3.3.3.1 + // https://promisesaplus.com/#point-57 + // Re-resolve promises immediately to dodge false rejection from + // subsequent errors + if ( depth ) { + process(); + } else { + + // Call an optional hook to record the stack, in case of exception + // since it's otherwise lost when execution goes async + if ( jQuery.Deferred.getStackHook ) { + process.stackTrace = jQuery.Deferred.getStackHook(); + } + window.setTimeout( process ); + } + }; + } + + return jQuery.Deferred( function( newDefer ) { + + // progress_handlers.add( ... ) + tuples[ 0 ][ 3 ].add( + resolve( + 0, + newDefer, + isFunction( onProgress ) ? + onProgress : + Identity, + newDefer.notifyWith + ) + ); + + // fulfilled_handlers.add( ... ) + tuples[ 1 ][ 3 ].add( + resolve( + 0, + newDefer, + isFunction( onFulfilled ) ? + onFulfilled : + Identity + ) + ); + + // rejected_handlers.add( ... ) + tuples[ 2 ][ 3 ].add( + resolve( + 0, + newDefer, + isFunction( onRejected ) ? + onRejected : + Thrower + ) + ); + } ).promise(); }, + // Get a promise for this deferred // If obj is provided, the promise aspect is added to the object promise: function( obj ) { @@ -3270,34 +3916,60 @@ jQuery.extend({ }, deferred = {}; - // Keep pipe for back-compat - promise.pipe = promise.then; - // Add list-specific methods jQuery.each( tuples, function( i, tuple ) { var list = tuple[ 2 ], - stateString = tuple[ 3 ]; + stateString = tuple[ 5 ]; - // promise[ done | fail | progress ] = list.add - promise[ tuple[1] ] = list.add; + // promise.progress = list.add + // promise.done = list.add + // promise.fail = list.add + promise[ tuple[ 1 ] ] = list.add; // Handle state if ( stateString ) { - list.add(function() { - // state = [ resolved | rejected ] - state = stateString; + list.add( + function() { + + // state = "resolved" (i.e., fulfilled) + // state = "rejected" + state = stateString; + }, + + // rejected_callbacks.disable + // fulfilled_callbacks.disable + tuples[ 3 - i ][ 2 ].disable, + + // rejected_handlers.disable + // fulfilled_handlers.disable + tuples[ 3 - i ][ 3 ].disable, + + // progress_callbacks.lock + tuples[ 0 ][ 2 ].lock, - // [ reject_list | resolve_list ].disable; progress_list.lock - }, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock ); + // progress_handlers.lock + tuples[ 0 ][ 3 ].lock + ); } - // deferred[ resolve | reject | notify ] - deferred[ tuple[0] ] = function() { - deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments ); + // progress_handlers.fire + // fulfilled_handlers.fire + // rejected_handlers.fire + list.add( tuple[ 3 ].fire ); + + // deferred.notify = function() { deferred.notifyWith(...) } + // deferred.resolve = function() { deferred.resolveWith(...) } + // deferred.reject = function() { deferred.rejectWith(...) } + deferred[ tuple[ 0 ] ] = function() { + deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments ); return this; }; - deferred[ tuple[0] + "With" ] = list.fireWith; - }); + + // deferred.notifyWith = list.fireWith + // deferred.resolveWith = list.fireWith + // deferred.rejectWith = list.fireWith + deferred[ tuple[ 0 ] + "With" ] = list.fireWith; + } ); // Make the deferred a promise promise.promise( deferred ); @@ -3312,70 +3984,101 @@ jQuery.extend({ }, // Deferred helper - when: function( subordinate /* , ..., subordinateN */ ) { - var i = 0, - resolveValues = slice.call( arguments ), - length = resolveValues.length, + when: function( singleValue ) { + var + + // count of uncompleted subordinates + remaining = arguments.length, - // the count of uncompleted subordinates - remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0, + // count of unprocessed arguments + i = remaining, + + // subordinate fulfillment data + resolveContexts = Array( i ), + resolveValues = slice.call( arguments ), - // the master Deferred. If resolveValues consist of only a single Deferred, just use that. - deferred = remaining === 1 ? subordinate : jQuery.Deferred(), + // the master Deferred + master = jQuery.Deferred(), - // Update function for both resolve and progress values - updateFunc = function( i, contexts, values ) { + // subordinate callback factory + updateFunc = function( i ) { return function( value ) { - contexts[ i ] = this; - values[ i ] = arguments.length > 1 ? slice.call( arguments ) : value; - if ( values === progressValues ) { - deferred.notifyWith( contexts, values ); - } else if ( !( --remaining ) ) { - deferred.resolveWith( contexts, values ); + resolveContexts[ i ] = this; + resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value; + if ( !( --remaining ) ) { + master.resolveWith( resolveContexts, resolveValues ); } }; - }, + }; - progressValues, progressContexts, resolveContexts; + // Single- and empty arguments are adopted like Promise.resolve + if ( remaining <= 1 ) { + adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject, + !remaining ); - // Add listeners to Deferred subordinates; treat others as resolved - if ( length > 1 ) { - progressValues = new Array( length ); - progressContexts = new Array( length ); - resolveContexts = new Array( length ); - for ( ; i < length; i++ ) { - if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) { - resolveValues[ i ].promise() - .done( updateFunc( i, resolveContexts, resolveValues ) ) - .fail( deferred.reject ) - .progress( updateFunc( i, progressContexts, progressValues ) ); - } else { - --remaining; - } + // Use .then() to unwrap secondary thenables (cf. gh-3000) + if ( master.state() === "pending" || + isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) { + + return master.then(); } } - // If we're not waiting on anything, resolve the master - if ( !remaining ) { - deferred.resolveWith( resolveContexts, resolveValues ); + // Multiple arguments are aggregated like Promise.all array elements + while ( i-- ) { + adoptValue( resolveValues[ i ], updateFunc( i ), master.reject ); } - return deferred.promise(); + return master.promise(); + } +} ); + + +// These usually indicate a programmer mistake during development, +// warn about them ASAP rather than swallowing them by default. +var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/; + +jQuery.Deferred.exceptionHook = function( error, stack ) { + + // Support: IE 8 - 9 only + // Console exists when dev tools are open, which can happen at any time + if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) { + window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack ); } -}); +}; + + + + +jQuery.readyException = function( error ) { + window.setTimeout( function() { + throw error; + } ); +}; + + // The deferred used on DOM ready -var readyList; +var readyList = jQuery.Deferred(); jQuery.fn.ready = function( fn ) { - // Add the callback - jQuery.ready.promise().done( fn ); + + readyList + .then( fn ) + + // Wrap jQuery.readyException in a function so that the lookup + // happens at the time of error handling instead of callback + // registration. + .catch( function( error ) { + jQuery.readyException( error ); + } ); return this; }; -jQuery.extend({ +jQuery.extend( { + // Is the DOM ready to be used? Set to true once it occurs. isReady: false, @@ -3383,15 +4086,6 @@ jQuery.extend({ // the ready event fires. See #6781 readyWait: 1, - // Hold (or release) the ready event - holdReady: function( hold ) { - if ( hold ) { - jQuery.readyWait++; - } else { - jQuery.ready( true ); - } - }, - // Handle when the DOM is ready ready: function( wait ) { @@ -3410,77 +4104,64 @@ jQuery.extend({ // If there are functions bound, to execute readyList.resolveWith( document, [ jQuery ] ); - - // Trigger any bound ready events - if ( jQuery.fn.triggerHandler ) { - jQuery( document ).triggerHandler( "ready" ); - jQuery( document ).off( "ready" ); - } } -}); +} ); -/** - * The ready event handler and self cleanup method - */ +jQuery.ready.then = readyList.then; + +// The ready event handler and self cleanup method function completed() { - document.removeEventListener( "DOMContentLoaded", completed, false ); - window.removeEventListener( "load", completed, false ); + document.removeEventListener( "DOMContentLoaded", completed ); + window.removeEventListener( "load", completed ); jQuery.ready(); } -jQuery.ready.promise = function( obj ) { - if ( !readyList ) { +// Catch cases where $(document).ready() is called +// after the browser event has already occurred. +// Support: IE <=9 - 10 only +// Older IE sometimes signals "interactive" too soon +if ( document.readyState === "complete" || + ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) { - readyList = jQuery.Deferred(); + // Handle it asynchronously to allow scripts the opportunity to delay ready + window.setTimeout( jQuery.ready ); - // Catch cases where $(document).ready() is called after the browser event has already occurred. - // We once tried to use readyState "interactive" here, but it caused issues like the one - // discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15 - if ( document.readyState === "complete" ) { - // Handle it asynchronously to allow scripts the opportunity to delay ready - setTimeout( jQuery.ready ); +} else { - } else { - - // Use the handy event callback - document.addEventListener( "DOMContentLoaded", completed, false ); - - // A fallback to window.onload, that will always work - window.addEventListener( "load", completed, false ); - } - } - return readyList.promise( obj ); -}; + // Use the handy event callback + document.addEventListener( "DOMContentLoaded", completed ); -// Kick off the DOM ready check even if the user does not -jQuery.ready.promise(); + // A fallback to window.onload, that will always work + window.addEventListener( "load", completed ); +} // Multifunctional method to get and set values of a collection // The value/s can optionally be executed if it's a function -var access = jQuery.access = function( elems, fn, key, value, chainable, emptyGet, raw ) { +var access = function( elems, fn, key, value, chainable, emptyGet, raw ) { var i = 0, len = elems.length, bulk = key == null; // Sets many values - if ( jQuery.type( key ) === "object" ) { + if ( toType( key ) === "object" ) { chainable = true; for ( i in key ) { - jQuery.access( elems, fn, i, key[i], true, emptyGet, raw ); + access( elems, fn, i, key[ i ], true, emptyGet, raw ); } // Sets one value } else if ( value !== undefined ) { chainable = true; - if ( !jQuery.isFunction( value ) ) { + if ( !isFunction( value ) ) { raw = true; } if ( bulk ) { + // Bulk operations run against the entire set if ( raw ) { fn.call( elems, value ); @@ -3489,7 +4170,7 @@ var access = jQuery.access = function( elems, fn, key, value, chainable, emptyGe // ...except when executing function values } else { bulk = fn; - fn = function( elem, key, value ) { + fn = function( elem, _key, value ) { return bulk.call( jQuery( elem ), value ); }; } @@ -3497,127 +4178,126 @@ var access = jQuery.access = function( elems, fn, key, value, chainable, emptyGe if ( fn ) { for ( ; i < len; i++ ) { - fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) ); + fn( + elems[ i ], key, raw ? + value : + value.call( elems[ i ], i, fn( elems[ i ], key ) ) + ); } } } - return chainable ? - elems : + if ( chainable ) { + return elems; + } + + // Gets + if ( bulk ) { + return fn.call( elems ); + } - // Gets - bulk ? - fn.call( elems ) : - len ? fn( elems[0], key ) : emptyGet; + return len ? fn( elems[ 0 ], key ) : emptyGet; }; -/** - * Determines whether an object can have data - */ -jQuery.acceptData = function( owner ) { +// Matches dashed string for camelizing +var rmsPrefix = /^-ms-/, + rdashAlpha = /-([a-z])/g; + +// Used by camelCase as callback to replace() +function fcamelCase( _all, letter ) { + return letter.toUpperCase(); +} + +// Convert dashed to camelCase; used by the css and data modules +// Support: IE <=9 - 11, Edge 12 - 15 +// Microsoft forgot to hump their vendor prefix (#9572) +function camelCase( string ) { + return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase ); +} +var acceptData = function( owner ) { + // Accepts only: // - Node // - Node.ELEMENT_NODE // - Node.DOCUMENT_NODE // - Object // - Any - /* jshint -W018 */ return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType ); }; -function Data() { - // Support: Android<4, - // Old WebKit does not have Object.preventExtensions/freeze method, - // return new empty object instead with no [[set]] accessor - Object.defineProperty( this.cache = {}, 0, { - get: function() { - return {}; - } - }); + +function Data() { this.expando = jQuery.expando + Data.uid++; } Data.uid = 1; -Data.accepts = jQuery.acceptData; Data.prototype = { - key: function( owner ) { - // We can accept data for non-element nodes in modern browsers, - // but we should not, see #8335. - // Always return the key for a frozen object. - if ( !Data.accepts( owner ) ) { - return 0; - } - var descriptor = {}, - // Check if the owner object already has a cache key - unlock = owner[ this.expando ]; - - // If not, create one - if ( !unlock ) { - unlock = Data.uid++; + cache: function( owner ) { - // Secure it in a non-enumerable, non-writable property - try { - descriptor[ this.expando ] = { value: unlock }; - Object.defineProperties( owner, descriptor ); + // Check if the owner object already has a cache + var value = owner[ this.expando ]; - // Support: Android<4 - // Fallback to a less secure definition - } catch ( e ) { - descriptor[ this.expando ] = unlock; - jQuery.extend( owner, descriptor ); + // If not, create one + if ( !value ) { + value = {}; + + // We can accept data for non-element nodes in modern browsers, + // but we should not, see #8335. + // Always return an empty object. + if ( acceptData( owner ) ) { + + // If it is a node unlikely to be stringify-ed or looped over + // use plain assignment + if ( owner.nodeType ) { + owner[ this.expando ] = value; + + // Otherwise secure it in a non-enumerable property + // configurable must be true to allow the property to be + // deleted when data is removed + } else { + Object.defineProperty( owner, this.expando, { + value: value, + configurable: true + } ); + } } } - // Ensure the cache object - if ( !this.cache[ unlock ] ) { - this.cache[ unlock ] = {}; - } - - return unlock; + return value; }, set: function( owner, data, value ) { var prop, - // There may be an unlock assigned to this node, - // if there is no entry for this "owner", create one inline - // and set the unlock as though an owner entry had always existed - unlock = this.key( owner ), - cache = this.cache[ unlock ]; + cache = this.cache( owner ); // Handle: [ owner, key, value ] args + // Always use camelCase key (gh-2257) if ( typeof data === "string" ) { - cache[ data ] = value; + cache[ camelCase( data ) ] = value; // Handle: [ owner, { properties } ] args } else { - // Fresh assignments by object are shallow copied - if ( jQuery.isEmptyObject( cache ) ) { - jQuery.extend( this.cache[ unlock ], data ); - // Otherwise, copy the properties one-by-one to the cache object - } else { - for ( prop in data ) { - cache[ prop ] = data[ prop ]; - } + + // Copy the properties one-by-one to the cache object + for ( prop in data ) { + cache[ camelCase( prop ) ] = data[ prop ]; } } return cache; }, get: function( owner, key ) { - // Either a valid cache is found, or will be created. - // New caches will be created and the unlock returned, - // allowing direct access to the newly created - // empty data object. A valid owner object must be provided. - var cache = this.cache[ this.key( owner ) ]; - return key === undefined ? - cache : cache[ key ]; + this.cache( owner ) : + + // Always use camelCase key (gh-2257) + owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ]; }, access: function( owner, key, value ) { - var stored; + // In cases where either: // // 1. No key was specified @@ -3630,15 +4310,12 @@ Data.prototype = { // 2. The data stored at the key // if ( key === undefined || - ((key && typeof key === "string") && value === undefined) ) { - - stored = this.get( owner, key ); + ( ( key && typeof key === "string" ) && value === undefined ) ) { - return stored !== undefined ? - stored : this.get( owner, jQuery.camelCase(key) ); + return this.get( owner, key ); } - // [*]When the key is not a string, or both a key and value + // When the key is not a string, or both a key and value // are specified, set or extend (existing objects) with either: // // 1. An object of properties @@ -3651,57 +4328,60 @@ Data.prototype = { return value !== undefined ? value : key; }, remove: function( owner, key ) { - var i, name, camel, - unlock = this.key( owner ), - cache = this.cache[ unlock ]; + var i, + cache = owner[ this.expando ]; - if ( key === undefined ) { - this.cache[ unlock ] = {}; + if ( cache === undefined ) { + return; + } + + if ( key !== undefined ) { - } else { // Support array or space separated string of keys - if ( jQuery.isArray( key ) ) { - // If "name" is an array of keys... - // When data is initially created, via ("key", "val") signature, - // keys will be converted to camelCase. - // Since there is no way to tell _how_ a key was added, remove - // both plain key and camelCase key. #12786 - // This will only penalize the array argument path. - name = key.concat( key.map( jQuery.camelCase ) ); + if ( Array.isArray( key ) ) { + + // If key is an array of keys... + // We always set camelCase keys, so remove that. + key = key.map( camelCase ); } else { - camel = jQuery.camelCase( key ); - // Try the string as a key before any manipulation - if ( key in cache ) { - name = [ key, camel ]; - } else { - // If a key with the spaces exists, use it. - // Otherwise, create an array by matching non-whitespace - name = camel; - name = name in cache ? - [ name ] : ( name.match( rnotwhite ) || [] ); - } + key = camelCase( key ); + + // If a key with the spaces exists, use it. + // Otherwise, create an array by matching non-whitespace + key = key in cache ? + [ key ] : + ( key.match( rnothtmlwhite ) || [] ); } - i = name.length; + i = key.length; + while ( i-- ) { - delete cache[ name[ i ] ]; + delete cache[ key[ i ] ]; + } + } + + // Remove the expando if there's no more data + if ( key === undefined || jQuery.isEmptyObject( cache ) ) { + + // Support: Chrome <=35 - 45 + // Webkit & Blink performance suffers when deleting properties + // from DOM nodes, so set to undefined instead + // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted) + if ( owner.nodeType ) { + owner[ this.expando ] = undefined; + } else { + delete owner[ this.expando ]; } } }, hasData: function( owner ) { - return !jQuery.isEmptyObject( - this.cache[ owner[ this.expando ] ] || {} - ); - }, - discard: function( owner ) { - if ( owner[ this.expando ] ) { - delete this.cache[ owner[ this.expando ] ]; - } + var cache = owner[ this.expando ]; + return cache !== undefined && !jQuery.isEmptyObject( cache ); } }; -var data_priv = new Data(); +var dataPriv = new Data(); -var data_user = new Data(); +var dataUser = new Data(); @@ -3716,7 +4396,32 @@ var data_user = new Data(); // 6. Provide a clear path for implementation upgrade to WeakMap in 2014 var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/, - rmultiDash = /([A-Z])/g; + rmultiDash = /[A-Z]/g; + +function getData( data ) { + if ( data === "true" ) { + return true; + } + + if ( data === "false" ) { + return false; + } + + if ( data === "null" ) { + return null; + } + + // Only convert to a number if it doesn't change the string + if ( data === +data + "" ) { + return +data; + } + + if ( rbrace.test( data ) ) { + return JSON.parse( data ); + } + + return data; +} function dataAttr( elem, key, data ) { var name; @@ -3724,22 +4429,16 @@ function dataAttr( elem, key, data ) { // If nothing was found internally, try to fetch any // data from the HTML5 data-* attribute if ( data === undefined && elem.nodeType === 1 ) { - name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase(); + name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase(); data = elem.getAttribute( name ); if ( typeof data === "string" ) { try { - data = data === "true" ? true : - data === "false" ? false : - data === "null" ? null : - // Only convert to a number if it doesn't change the string - +data + "" === data ? +data : - rbrace.test( data ) ? jQuery.parseJSON( data ) : - data; - } catch( e ) {} + data = getData( data ); + } catch ( e ) {} // Make sure we set the data so it isn't changed later - data_user.set( elem, key, data ); + dataUser.set( elem, key, data ); } else { data = undefined; } @@ -3747,31 +4446,31 @@ function dataAttr( elem, key, data ) { return data; } -jQuery.extend({ +jQuery.extend( { hasData: function( elem ) { - return data_user.hasData( elem ) || data_priv.hasData( elem ); + return dataUser.hasData( elem ) || dataPriv.hasData( elem ); }, data: function( elem, name, data ) { - return data_user.access( elem, name, data ); + return dataUser.access( elem, name, data ); }, removeData: function( elem, name ) { - data_user.remove( elem, name ); + dataUser.remove( elem, name ); }, // TODO: Now that all calls to _data and _removeData have been replaced - // with direct calls to data_priv methods, these can be deprecated. + // with direct calls to dataPriv methods, these can be deprecated. _data: function( elem, name, data ) { - return data_priv.access( elem, name, data ); + return dataPriv.access( elem, name, data ); }, _removeData: function( elem, name ) { - data_priv.remove( elem, name ); + dataPriv.remove( elem, name ); } -}); +} ); -jQuery.fn.extend({ +jQuery.fn.extend( { data: function( key, value ) { var i, name, data, elem = this[ 0 ], @@ -3780,23 +4479,23 @@ jQuery.fn.extend({ // Gets all values if ( key === undefined ) { if ( this.length ) { - data = data_user.get( elem ); + data = dataUser.get( elem ); - if ( elem.nodeType === 1 && !data_priv.get( elem, "hasDataAttrs" ) ) { + if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) { i = attrs.length; while ( i-- ) { - // Support: IE11+ + // Support: IE 11 only // The attrs elements can be null (#14894) if ( attrs[ i ] ) { name = attrs[ i ].name; if ( name.indexOf( "data-" ) === 0 ) { - name = jQuery.camelCase( name.slice(5) ); + name = camelCase( name.slice( 5 ) ); dataAttr( elem, name, data[ name ] ); } } } - data_priv.set( elem, "hasDataAttrs", true ); + dataPriv.set( elem, "hasDataAttrs", true ); } } @@ -3805,14 +4504,13 @@ jQuery.fn.extend({ // Sets multiple values if ( typeof key === "object" ) { - return this.each(function() { - data_user.set( this, key ); - }); + return this.each( function() { + dataUser.set( this, key ); + } ); } return access( this, function( value ) { - var data, - camelKey = jQuery.camelCase( key ); + var data; // The calling jQuery object (element matches) is not empty // (and therefore has an element appears at this[ 0 ]) and the @@ -3820,23 +4518,17 @@ jQuery.fn.extend({ // will result in `undefined` for elem = this[ 0 ] which will // throw an exception if an attempt to read a data cache is made. if ( elem && value === undefined ) { - // Attempt to get data from the cache - // with the key as-is - data = data_user.get( elem, key ); - if ( data !== undefined ) { - return data; - } // Attempt to get data from the cache - // with the key camelized - data = data_user.get( elem, camelKey ); + // The key will always be camelCased in Data + data = dataUser.get( elem, key ); if ( data !== undefined ) { return data; } // Attempt to "discover" the data in // HTML5 custom data-* attrs - data = dataAttr( elem, camelKey, undefined ); + data = dataAttr( elem, key ); if ( data !== undefined ) { return data; } @@ -3846,46 +4538,34 @@ jQuery.fn.extend({ } // Set the data... - this.each(function() { - // First, attempt to store a copy or reference of any - // data that might've been store with a camelCased key. - var data = data_user.get( this, camelKey ); - - // For HTML5 data-* attribute interop, we have to - // store property names with dashes in a camelCase form. - // This might not apply to all properties...* - data_user.set( this, camelKey, value ); - - // *... In the case of properties that might _actually_ - // have dashes, we need to also store a copy of that - // unchanged property. - if ( key.indexOf("-") !== -1 && data !== undefined ) { - data_user.set( this, key, value ); - } - }); + this.each( function() { + + // We always store the camelCased key + dataUser.set( this, key, value ); + } ); }, null, value, arguments.length > 1, null, true ); }, removeData: function( key ) { - return this.each(function() { - data_user.remove( this, key ); - }); + return this.each( function() { + dataUser.remove( this, key ); + } ); } -}); +} ); -jQuery.extend({ +jQuery.extend( { queue: function( elem, type, data ) { var queue; if ( elem ) { type = ( type || "fx" ) + "queue"; - queue = data_priv.get( elem, type ); + queue = dataPriv.get( elem, type ); // Speed up dequeue by getting out quickly if this is just a lookup if ( data ) { - if ( !queue || jQuery.isArray( data ) ) { - queue = data_priv.access( elem, type, jQuery.makeArray(data) ); + if ( !queue || Array.isArray( data ) ) { + queue = dataPriv.access( elem, type, jQuery.makeArray( data ) ); } else { queue.push( data ); } @@ -3932,15 +4612,15 @@ jQuery.extend({ // Not public - generate a queueHooks object, or return the current one _queueHooks: function( elem, type ) { var key = type + "queueHooks"; - return data_priv.get( elem, key ) || data_priv.access( elem, key, { - empty: jQuery.Callbacks("once memory").add(function() { - data_priv.remove( elem, [ type + "queue", key ] ); - }) - }); + return dataPriv.get( elem, key ) || dataPriv.access( elem, key, { + empty: jQuery.Callbacks( "once memory" ).add( function() { + dataPriv.remove( elem, [ type + "queue", key ] ); + } ) + } ); } -}); +} ); -jQuery.fn.extend({ +jQuery.fn.extend( { queue: function( type, data ) { var setter = 2; @@ -3951,30 +4631,31 @@ jQuery.fn.extend({ } if ( arguments.length < setter ) { - return jQuery.queue( this[0], type ); + return jQuery.queue( this[ 0 ], type ); } return data === undefined ? this : - this.each(function() { + this.each( function() { var queue = jQuery.queue( this, type, data ); // Ensure a hooks for this queue jQuery._queueHooks( this, type ); - if ( type === "fx" && queue[0] !== "inprogress" ) { + if ( type === "fx" && queue[ 0 ] !== "inprogress" ) { jQuery.dequeue( this, type ); } - }); + } ); }, dequeue: function( type ) { - return this.each(function() { + return this.each( function() { jQuery.dequeue( this, type ); - }); + } ); }, clearQueue: function( type ) { return this.queue( type || "fx", [] ); }, + // Get a promise resolved when queues of a certain type // are emptied (fx is the type by default) promise: function( type, obj ) { @@ -3996,7 +4677,7 @@ jQuery.fn.extend({ type = type || "fx"; while ( i-- ) { - tmp = data_priv.get( elements[ i ], type + "queueHooks" ); + tmp = dataPriv.get( elements[ i ], type + "queueHooks" ); if ( tmp && tmp.empty ) { count++; tmp.empty.add( resolve ); @@ -4005,2719 +4686,3082 @@ jQuery.fn.extend({ resolve(); return defer.promise( obj ); } -}); -var pnum = (/[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/).source; +} ); +var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source; + +var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ); + var cssExpand = [ "Top", "Right", "Bottom", "Left" ]; -var isHidden = function( elem, el ) { - // isHidden might be called from jQuery#filter function; - // in that case, element will be second argument - elem = el || elem; - return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem ); - }; +var documentElement = document.documentElement; -var rcheckableType = (/^(?:checkbox|radio)$/i); + var isAttached = function( elem ) { + return jQuery.contains( elem.ownerDocument, elem ); + }, + composed = { composed: true }; + + // Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only + // Check attachment across shadow DOM boundaries when possible (gh-3504) + // Support: iOS 10.0-10.2 only + // Early iOS 10 versions support `attachShadow` but not `getRootNode`, + // leading to errors. We need to check for `getRootNode`. + if ( documentElement.getRootNode ) { + isAttached = function( elem ) { + return jQuery.contains( elem.ownerDocument, elem ) || + elem.getRootNode( composed ) === elem.ownerDocument; + }; + } +var isHiddenWithinTree = function( elem, el ) { -(function() { - var fragment = document.createDocumentFragment(), - div = fragment.appendChild( document.createElement( "div" ) ), - input = document.createElement( "input" ); + // isHiddenWithinTree might be called from jQuery#filter function; + // in that case, element will be second argument + elem = el || elem; - // Support: Safari<=5.1 - // Check state lost if the name is set (#11217) - // Support: Windows Web Apps (WWA) - // `name` and `type` must use .setAttribute for WWA (#14901) - input.setAttribute( "type", "radio" ); - input.setAttribute( "checked", "checked" ); - input.setAttribute( "name", "t" ); + // Inline style trumps all + return elem.style.display === "none" || + elem.style.display === "" && - div.appendChild( input ); + // Otherwise, check computed style + // Support: Firefox <=43 - 45 + // Disconnected elements can have computed display: none, so first confirm that elem is + // in the document. + isAttached( elem ) && - // Support: Safari<=5.1, Android<4.2 - // Older WebKit doesn't clone checked state correctly in fragments - support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked; + jQuery.css( elem, "display" ) === "none"; + }; - // Support: IE<=11+ - // Make sure textarea (and checkbox) defaultValue is properly cloned - div.innerHTML = ""; - support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue; -})(); -var strundefined = typeof undefined; +function adjustCSS( elem, prop, valueParts, tween ) { + var adjusted, scale, + maxIterations = 20, + currentValue = tween ? + function() { + return tween.cur(); + } : + function() { + return jQuery.css( elem, prop, "" ); + }, + initial = currentValue(), + unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ), -support.focusinBubbles = "onfocusin" in window; + // Starting value computation is required for potential unit mismatches + initialInUnit = elem.nodeType && + ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) && + rcssNum.exec( jQuery.css( elem, prop ) ); + if ( initialInUnit && initialInUnit[ 3 ] !== unit ) { -var - rkeyEvent = /^key/, - rmouseEvent = /^(?:mouse|pointer|contextmenu)|click/, - rfocusMorph = /^(?:focusinfocus|focusoutblur)$/, - rtypenamespace = /^([^.]*)(?:\.(.+)|)$/; + // Support: Firefox <=54 + // Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144) + initial = initial / 2; -function returnTrue() { - return true; -} + // Trust units reported by jQuery.css + unit = unit || initialInUnit[ 3 ]; -function returnFalse() { - return false; -} + // Iteratively approximate from a nonzero starting point + initialInUnit = +initial || 1; -function safeActiveElement() { - try { - return document.activeElement; - } catch ( err ) { } -} + while ( maxIterations-- ) { -/* - * Helper functions for managing events -- not part of the public interface. - * Props to Dean Edwards' addEvent library for many of the ideas. - */ -jQuery.event = { + // Evaluate and update our best guess (doubling guesses that zero out). + // Finish if the scale equals or crosses 1 (making the old*new product non-positive). + jQuery.style( elem, prop, initialInUnit + unit ); + if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) { + maxIterations = 0; + } + initialInUnit = initialInUnit / scale; - global: {}, + } - add: function( elem, types, handler, data, selector ) { + initialInUnit = initialInUnit * 2; + jQuery.style( elem, prop, initialInUnit + unit ); - var handleObjIn, eventHandle, tmp, - events, t, handleObj, - special, handlers, type, namespaces, origType, - elemData = data_priv.get( elem ); + // Make sure we update the tween properties later on + valueParts = valueParts || []; + } - // Don't attach events to noData or text/comment nodes (but allow plain objects) - if ( !elemData ) { - return; - } + if ( valueParts ) { + initialInUnit = +initialInUnit || +initial || 0; - // Caller can pass in an object of custom data in lieu of the handler - if ( handler.handler ) { - handleObjIn = handler; - handler = handleObjIn.handler; - selector = handleObjIn.selector; + // Apply relative offset (+=/-=) if specified + adjusted = valueParts[ 1 ] ? + initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] : + +valueParts[ 2 ]; + if ( tween ) { + tween.unit = unit; + tween.start = initialInUnit; + tween.end = adjusted; } + } + return adjusted; +} - // Make sure that the handler has a unique ID, used to find/remove it later - if ( !handler.guid ) { - handler.guid = jQuery.guid++; - } - // Init the element's event structure and main handler, if this is the first - if ( !(events = elemData.events) ) { - events = elemData.events = {}; - } - if ( !(eventHandle = elemData.handle) ) { - eventHandle = elemData.handle = function( e ) { - // Discard the second event of a jQuery.event.trigger() and - // when an event is called after a page has unloaded - return typeof jQuery !== strundefined && jQuery.event.triggered !== e.type ? - jQuery.event.dispatch.apply( elem, arguments ) : undefined; - }; - } +var defaultDisplayMap = {}; - // Handle multiple events separated by a space - types = ( types || "" ).match( rnotwhite ) || [ "" ]; - t = types.length; - while ( t-- ) { - tmp = rtypenamespace.exec( types[t] ) || []; - type = origType = tmp[1]; - namespaces = ( tmp[2] || "" ).split( "." ).sort(); +function getDefaultDisplay( elem ) { + var temp, + doc = elem.ownerDocument, + nodeName = elem.nodeName, + display = defaultDisplayMap[ nodeName ]; - // There *must* be a type, no attaching namespace-only handlers - if ( !type ) { - continue; - } + if ( display ) { + return display; + } - // If event changes its type, use the special event handlers for the changed type - special = jQuery.event.special[ type ] || {}; + temp = doc.body.appendChild( doc.createElement( nodeName ) ); + display = jQuery.css( temp, "display" ); - // If selector defined, determine special event api type, otherwise given type - type = ( selector ? special.delegateType : special.bindType ) || type; + temp.parentNode.removeChild( temp ); - // Update special based on newly reset type - special = jQuery.event.special[ type ] || {}; + if ( display === "none" ) { + display = "block"; + } + defaultDisplayMap[ nodeName ] = display; - // handleObj is passed to all event handlers - handleObj = jQuery.extend({ - type: type, - origType: origType, - data: data, - handler: handler, - guid: handler.guid, - selector: selector, - needsContext: selector && jQuery.expr.match.needsContext.test( selector ), - namespace: namespaces.join(".") - }, handleObjIn ); + return display; +} - // Init the event handler queue if we're the first - if ( !(handlers = events[ type ]) ) { - handlers = events[ type ] = []; - handlers.delegateCount = 0; +function showHide( elements, show ) { + var display, elem, + values = [], + index = 0, + length = elements.length; - // Only use addEventListener if the special events handler returns false - if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) { - if ( elem.addEventListener ) { - elem.addEventListener( type, eventHandle, false ); - } - } - } + // Determine new display value for elements that need to change + for ( ; index < length; index++ ) { + elem = elements[ index ]; + if ( !elem.style ) { + continue; + } - if ( special.add ) { - special.add.call( elem, handleObj ); + display = elem.style.display; + if ( show ) { - if ( !handleObj.handler.guid ) { - handleObj.handler.guid = handler.guid; + // Since we force visibility upon cascade-hidden elements, an immediate (and slow) + // check is required in this first loop unless we have a nonempty display value (either + // inline or about-to-be-restored) + if ( display === "none" ) { + values[ index ] = dataPriv.get( elem, "display" ) || null; + if ( !values[ index ] ) { + elem.style.display = ""; } } + if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) { + values[ index ] = getDefaultDisplay( elem ); + } + } else { + if ( display !== "none" ) { + values[ index ] = "none"; - // Add to the element's handler list, delegates in front - if ( selector ) { - handlers.splice( handlers.delegateCount++, 0, handleObj ); - } else { - handlers.push( handleObj ); + // Remember what we're overwriting + dataPriv.set( elem, "display", display ); } + } + } - // Keep track of which events have ever been used, for event optimization - jQuery.event.global[ type ] = true; + // Set the display of the elements in a second loop to avoid constant reflow + for ( index = 0; index < length; index++ ) { + if ( values[ index ] != null ) { + elements[ index ].style.display = values[ index ]; } + } - }, + return elements; +} - // Detach an event or set of events from an element - remove: function( elem, types, handler, selector, mappedTypes ) { - - var j, origCount, tmp, - events, t, handleObj, - special, handlers, type, namespaces, origType, - elemData = data_priv.hasData( elem ) && data_priv.get( elem ); - - if ( !elemData || !(events = elemData.events) ) { - return; +jQuery.fn.extend( { + show: function() { + return showHide( this, true ); + }, + hide: function() { + return showHide( this ); + }, + toggle: function( state ) { + if ( typeof state === "boolean" ) { + return state ? this.show() : this.hide(); } - // Once for each type.namespace in types; type may be omitted - types = ( types || "" ).match( rnotwhite ) || [ "" ]; - t = types.length; - while ( t-- ) { - tmp = rtypenamespace.exec( types[t] ) || []; - type = origType = tmp[1]; - namespaces = ( tmp[2] || "" ).split( "." ).sort(); - - // Unbind all events (on this namespace, if provided) for the element - if ( !type ) { - for ( type in events ) { - jQuery.event.remove( elem, type + types[ t ], handler, selector, true ); - } - continue; - } - - special = jQuery.event.special[ type ] || {}; - type = ( selector ? special.delegateType : special.bindType ) || type; - handlers = events[ type ] || []; - tmp = tmp[2] && new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ); - - // Remove matching events - origCount = j = handlers.length; - while ( j-- ) { - handleObj = handlers[ j ]; - - if ( ( mappedTypes || origType === handleObj.origType ) && - ( !handler || handler.guid === handleObj.guid ) && - ( !tmp || tmp.test( handleObj.namespace ) ) && - ( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) { - handlers.splice( j, 1 ); - - if ( handleObj.selector ) { - handlers.delegateCount--; - } - if ( special.remove ) { - special.remove.call( elem, handleObj ); - } - } + return this.each( function() { + if ( isHiddenWithinTree( this ) ) { + jQuery( this ).show(); + } else { + jQuery( this ).hide(); } + } ); + } +} ); +var rcheckableType = ( /^(?:checkbox|radio)$/i ); - // Remove generic event handler if we removed something and no more handlers exist - // (avoids potential for endless recursion during removal of special event handlers) - if ( origCount && !handlers.length ) { - if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) { - jQuery.removeEvent( elem, type, elemData.handle ); - } +var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i ); - delete events[ type ]; - } - } +var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i ); - // Remove the expando if it's no longer used - if ( jQuery.isEmptyObject( events ) ) { - delete elemData.handle; - data_priv.remove( elem, "events" ); - } - }, - trigger: function( event, data, elem, onlyHandlers ) { - var i, cur, tmp, bubbleType, ontype, handle, special, - eventPath = [ elem || document ], - type = hasOwn.call( event, "type" ) ? event.type : event, - namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split(".") : []; +( function() { + var fragment = document.createDocumentFragment(), + div = fragment.appendChild( document.createElement( "div" ) ), + input = document.createElement( "input" ); - cur = tmp = elem = elem || document; + // Support: Android 4.0 - 4.3 only + // Check state lost if the name is set (#11217) + // Support: Windows Web Apps (WWA) + // `name` and `type` must use .setAttribute for WWA (#14901) + input.setAttribute( "type", "radio" ); + input.setAttribute( "checked", "checked" ); + input.setAttribute( "name", "t" ); - // Don't do events on text and comment nodes - if ( elem.nodeType === 3 || elem.nodeType === 8 ) { - return; - } + div.appendChild( input ); - // focus/blur morphs to focusin/out; ensure we're not firing them right now - if ( rfocusMorph.test( type + jQuery.event.triggered ) ) { - return; - } + // Support: Android <=4.1 only + // Older WebKit doesn't clone checked state correctly in fragments + support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked; - if ( type.indexOf(".") >= 0 ) { - // Namespaced trigger; create a regexp to match event type in handle() - namespaces = type.split("."); - type = namespaces.shift(); - namespaces.sort(); - } - ontype = type.indexOf(":") < 0 && "on" + type; + // Support: IE <=11 only + // Make sure textarea (and checkbox) defaultValue is properly cloned + div.innerHTML = ""; + support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue; - // Caller can pass in a jQuery.Event object, Object, or just an event type string - event = event[ jQuery.expando ] ? - event : - new jQuery.Event( type, typeof event === "object" && event ); + // Support: IE <=9 only + // IE <=9 replaces "; + support.option = !!div.lastChild; +} )(); - // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true) - event.isTrigger = onlyHandlers ? 2 : 3; - event.namespace = namespaces.join("."); - event.namespace_re = event.namespace ? - new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) : - null; - // Clean up the event in case it is being reused - event.result = undefined; - if ( !event.target ) { - event.target = elem; - } +// We have to close these tags to support XHTML (#13200) +var wrapMap = { - // Clone any incoming data and prepend the event, creating the handler arg list - data = data == null ? - [ event ] : - jQuery.makeArray( data, [ event ] ); + // XHTML parsers do not magically insert elements in the + // same way that tag soup parsers do. So we cannot shorten + // this by omitting or other required elements. + thead: [ 1, "", "
" ], + col: [ 2, "", "
" ], + tr: [ 2, "", "
" ], + td: [ 3, "", "
" ], - // Allow special events to draw outside the lines - special = jQuery.event.special[ type ] || {}; - if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) { - return; - } + _default: [ 0, "", "" ] +}; - // Determine event propagation path in advance, per W3C events spec (#9951) - // Bubble up to document, then to window; watch for a global ownerDocument var (#9724) - if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) { +wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead; +wrapMap.th = wrapMap.td; - bubbleType = special.delegateType || type; - if ( !rfocusMorph.test( bubbleType + type ) ) { - cur = cur.parentNode; - } - for ( ; cur; cur = cur.parentNode ) { - eventPath.push( cur ); - tmp = cur; - } +// Support: IE <=9 only +if ( !support.option ) { + wrapMap.optgroup = wrapMap.option = [ 1, "" ]; +} - // Only add window if we got to document (e.g., not plain obj or detached DOM) - if ( tmp === (elem.ownerDocument || document) ) { - eventPath.push( tmp.defaultView || tmp.parentWindow || window ); - } - } - // Fire handlers on the event path - i = 0; - while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) { +function getAll( context, tag ) { - event.type = i > 1 ? - bubbleType : - special.bindType || type; + // Support: IE <=9 - 11 only + // Use typeof to avoid zero-argument method invocation on host objects (#15151) + var ret; - // jQuery handler - handle = ( data_priv.get( cur, "events" ) || {} )[ event.type ] && data_priv.get( cur, "handle" ); - if ( handle ) { - handle.apply( cur, data ); - } + if ( typeof context.getElementsByTagName !== "undefined" ) { + ret = context.getElementsByTagName( tag || "*" ); - // Native handler - handle = ontype && cur[ ontype ]; - if ( handle && handle.apply && jQuery.acceptData( cur ) ) { - event.result = handle.apply( cur, data ); - if ( event.result === false ) { - event.preventDefault(); - } - } - } - event.type = type; + } else if ( typeof context.querySelectorAll !== "undefined" ) { + ret = context.querySelectorAll( tag || "*" ); - // If nobody prevented the default action, do it now - if ( !onlyHandlers && !event.isDefaultPrevented() ) { + } else { + ret = []; + } - if ( (!special._default || special._default.apply( eventPath.pop(), data ) === false) && - jQuery.acceptData( elem ) ) { + if ( tag === undefined || tag && nodeName( context, tag ) ) { + return jQuery.merge( [ context ], ret ); + } - // Call a native DOM method on the target with the same name name as the event. - // Don't do default actions on window, that's where global variables be (#6170) - if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) { + return ret; +} - // Don't re-trigger an onFOO event when we call its FOO() method - tmp = elem[ ontype ]; - if ( tmp ) { - elem[ ontype ] = null; - } +// Mark scripts as having already been evaluated +function setGlobalEval( elems, refElements ) { + var i = 0, + l = elems.length; - // Prevent re-triggering of the same event, since we already bubbled it above - jQuery.event.triggered = type; - elem[ type ](); - jQuery.event.triggered = undefined; + for ( ; i < l; i++ ) { + dataPriv.set( + elems[ i ], + "globalEval", + !refElements || dataPriv.get( refElements[ i ], "globalEval" ) + ); + } +} - if ( tmp ) { - elem[ ontype ] = tmp; - } - } - } - } - return event.result; - }, +var rhtml = /<|&#?\w+;/; - dispatch: function( event ) { +function buildFragment( elems, context, scripts, selection, ignored ) { + var elem, tmp, tag, wrap, attached, j, + fragment = context.createDocumentFragment(), + nodes = [], + i = 0, + l = elems.length; - // Make a writable jQuery.Event from the native event object - event = jQuery.event.fix( event ); + for ( ; i < l; i++ ) { + elem = elems[ i ]; - var i, j, ret, matched, handleObj, - handlerQueue = [], - args = slice.call( arguments ), - handlers = ( data_priv.get( this, "events" ) || {} )[ event.type ] || [], - special = jQuery.event.special[ event.type ] || {}; + if ( elem || elem === 0 ) { - // Use the fix-ed jQuery.Event rather than the (read-only) native event - args[0] = event; - event.delegateTarget = this; + // Add nodes directly + if ( toType( elem ) === "object" ) { - // Call the preDispatch hook for the mapped type, and let it bail if desired - if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) { - return; - } + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem ); - // Determine handlers - handlerQueue = jQuery.event.handlers.call( this, event, handlers ); + // Convert non-html into a text node + } else if ( !rhtml.test( elem ) ) { + nodes.push( context.createTextNode( elem ) ); - // Run delegates first; they may want to stop propagation beneath us - i = 0; - while ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) { - event.currentTarget = matched.elem; + // Convert html into DOM nodes + } else { + tmp = tmp || fragment.appendChild( context.createElement( "div" ) ); - j = 0; - while ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) { + // Deserialize a standard representation + tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase(); + wrap = wrapMap[ tag ] || wrapMap._default; + tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ]; - // Triggered event must either 1) have no namespace, or 2) have namespace(s) - // a subset or equal to those in the bound event (both can have no namespace). - if ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) { + // Descend through wrappers to the right content + j = wrap[ 0 ]; + while ( j-- ) { + tmp = tmp.lastChild; + } - event.handleObj = handleObj; - event.data = handleObj.data; + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( nodes, tmp.childNodes ); - ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler ) - .apply( matched.elem, args ); + // Remember the top-level container + tmp = fragment.firstChild; - if ( ret !== undefined ) { - if ( (event.result = ret) === false ) { - event.preventDefault(); - event.stopPropagation(); - } - } - } + // Ensure the created nodes are orphaned (#12392) + tmp.textContent = ""; } } + } - // Call the postDispatch hook for the mapped type - if ( special.postDispatch ) { - special.postDispatch.call( this, event ); - } - - return event.result; - }, + // Remove wrapper from fragment + fragment.textContent = ""; - handlers: function( event, handlers ) { - var i, matches, sel, handleObj, - handlerQueue = [], - delegateCount = handlers.delegateCount, - cur = event.target; + i = 0; + while ( ( elem = nodes[ i++ ] ) ) { - // Find delegate handlers - // Black-hole SVG instance trees (#13180) - // Avoid non-left-click bubbling in Firefox (#3861) - if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) { + // Skip elements already in the context collection (trac-4087) + if ( selection && jQuery.inArray( elem, selection ) > -1 ) { + if ( ignored ) { + ignored.push( elem ); + } + continue; + } - for ( ; cur !== this; cur = cur.parentNode || this ) { + attached = isAttached( elem ); - // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764) - if ( cur.disabled !== true || event.type !== "click" ) { - matches = []; - for ( i = 0; i < delegateCount; i++ ) { - handleObj = handlers[ i ]; + // Append to fragment + tmp = getAll( fragment.appendChild( elem ), "script" ); - // Don't conflict with Object.prototype properties (#13203) - sel = handleObj.selector + " "; + // Preserve script evaluation history + if ( attached ) { + setGlobalEval( tmp ); + } - if ( matches[ sel ] === undefined ) { - matches[ sel ] = handleObj.needsContext ? - jQuery( sel, this ).index( cur ) >= 0 : - jQuery.find( sel, this, null, [ cur ] ).length; - } - if ( matches[ sel ] ) { - matches.push( handleObj ); - } - } - if ( matches.length ) { - handlerQueue.push({ elem: cur, handlers: matches }); - } + // Capture executables + if ( scripts ) { + j = 0; + while ( ( elem = tmp[ j++ ] ) ) { + if ( rscriptType.test( elem.type || "" ) ) { + scripts.push( elem ); } } } + } - // Add the remaining (directly-bound) handlers - if ( delegateCount < handlers.length ) { - handlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) }); - } + return fragment; +} - return handlerQueue; - }, - // Includes some event props shared by KeyEvent and MouseEvent - props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "), +var + rkeyEvent = /^key/, + rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/, + rtypenamespace = /^([^.]*)(?:\.(.+)|)/; - fixHooks: {}, +function returnTrue() { + return true; +} - keyHooks: { - props: "char charCode key keyCode".split(" "), - filter: function( event, original ) { - - // Add which for key events - if ( event.which == null ) { - event.which = original.charCode != null ? original.charCode : original.keyCode; - } - - return event; - } - }, - - mouseHooks: { - props: "button buttons clientX clientY offsetX offsetY pageX pageY screenX screenY toElement".split(" "), - filter: function( event, original ) { - var eventDoc, doc, body, - button = original.button; - - // Calculate pageX/Y if missing and clientX/Y available - if ( event.pageX == null && original.clientX != null ) { - eventDoc = event.target.ownerDocument || document; - doc = eventDoc.documentElement; - body = eventDoc.body; - - event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 ); - event.pageY = original.clientY + ( doc && doc.scrollTop || body && body.scrollTop || 0 ) - ( doc && doc.clientTop || body && body.clientTop || 0 ); - } - - // Add which for click: 1 === left; 2 === middle; 3 === right - // Note: button is not normalized, so don't use it - if ( !event.which && button !== undefined ) { - event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) ); - } - - return event; - } - }, +function returnFalse() { + return false; +} - fix: function( event ) { - if ( event[ jQuery.expando ] ) { - return event; - } +// Support: IE <=9 - 11+ +// focus() and blur() are asynchronous, except when they are no-op. +// So expect focus to be synchronous when the element is already active, +// and blur to be synchronous when the element is not already active. +// (focus and blur are always synchronous in other supported browsers, +// this just defines when we can count on it). +function expectSync( elem, type ) { + return ( elem === safeActiveElement() ) === ( type === "focus" ); +} - // Create a writable copy of the event object and normalize some properties - var i, prop, copy, - type = event.type, - originalEvent = event, - fixHook = this.fixHooks[ type ]; +// Support: IE <=9 only +// Accessing document.activeElement can throw unexpectedly +// https://bugs.jquery.com/ticket/13393 +function safeActiveElement() { + try { + return document.activeElement; + } catch ( err ) { } +} - if ( !fixHook ) { - this.fixHooks[ type ] = fixHook = - rmouseEvent.test( type ) ? this.mouseHooks : - rkeyEvent.test( type ) ? this.keyHooks : - {}; - } - copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props; +function on( elem, types, selector, data, fn, one ) { + var origFn, type; - event = new jQuery.Event( originalEvent ); + // Types can be a map of types/handlers + if ( typeof types === "object" ) { - i = copy.length; - while ( i-- ) { - prop = copy[ i ]; - event[ prop ] = originalEvent[ prop ]; - } + // ( types-Object, selector, data ) + if ( typeof selector !== "string" ) { - // Support: Cordova 2.5 (WebKit) (#13255) - // All events should have a target; Cordova deviceready doesn't - if ( !event.target ) { - event.target = document; + // ( types-Object, data ) + data = data || selector; + selector = undefined; } - - // Support: Safari 6.0+, Chrome<28 - // Target should not be a text node (#504, #13143) - if ( event.target.nodeType === 3 ) { - event.target = event.target.parentNode; + for ( type in types ) { + on( elem, type, selector, data, types[ type ], one ); } + return elem; + } - return fixHook.filter ? fixHook.filter( event, originalEvent ) : event; - }, - - special: { - load: { - // Prevent triggered image.load events from bubbling to window.load - noBubble: true - }, - focus: { - // Fire native event if possible so blur/focus sequence is correct - trigger: function() { - if ( this !== safeActiveElement() && this.focus ) { - this.focus(); - return false; - } - }, - delegateType: "focusin" - }, - blur: { - trigger: function() { - if ( this === safeActiveElement() && this.blur ) { - this.blur(); - return false; - } - }, - delegateType: "focusout" - }, - click: { - // For checkbox, fire native event so checked state will be right - trigger: function() { - if ( this.type === "checkbox" && this.click && jQuery.nodeName( this, "input" ) ) { - this.click(); - return false; - } - }, - - // For cross-browser consistency, don't fire native .click() on links - _default: function( event ) { - return jQuery.nodeName( event.target, "a" ); - } - }, - - beforeunload: { - postDispatch: function( event ) { + if ( data == null && fn == null ) { - // Support: Firefox 20+ - // Firefox doesn't alert if the returnValue field is not set. - if ( event.result !== undefined && event.originalEvent ) { - event.originalEvent.returnValue = event.result; - } - } - } - }, + // ( types, fn ) + fn = selector; + data = selector = undefined; + } else if ( fn == null ) { + if ( typeof selector === "string" ) { - simulate: function( type, elem, event, bubble ) { - // Piggyback on a donor event to simulate a different one. - // Fake originalEvent to avoid donor's stopPropagation, but if the - // simulated event prevents default then we do the same on the donor. - var e = jQuery.extend( - new jQuery.Event(), - event, - { - type: type, - isSimulated: true, - originalEvent: {} - } - ); - if ( bubble ) { - jQuery.event.trigger( e, null, elem ); + // ( types, selector, fn ) + fn = data; + data = undefined; } else { - jQuery.event.dispatch.call( elem, e ); - } - if ( e.isDefaultPrevented() ) { - event.preventDefault(); - } - } -}; -jQuery.removeEvent = function( elem, type, handle ) { - if ( elem.removeEventListener ) { - elem.removeEventListener( type, handle, false ); + // ( types, data, fn ) + fn = data; + data = selector; + selector = undefined; + } } -}; - -jQuery.Event = function( src, props ) { - // Allow instantiation without the 'new' keyword - if ( !(this instanceof jQuery.Event) ) { - return new jQuery.Event( src, props ); + if ( fn === false ) { + fn = returnFalse; + } else if ( !fn ) { + return elem; } - // Event object - if ( src && src.type ) { - this.originalEvent = src; - this.type = src.type; - - // Events bubbling up the document may have been marked as prevented - // by a handler lower down the tree; reflect the correct value. - this.isDefaultPrevented = src.defaultPrevented || - src.defaultPrevented === undefined && - // Support: Android<4.0 - src.returnValue === false ? - returnTrue : - returnFalse; + if ( one === 1 ) { + origFn = fn; + fn = function( event ) { - // Event type - } else { - this.type = src; - } + // Can use an empty set, since event contains the info + jQuery().off( event ); + return origFn.apply( this, arguments ); + }; - // Put explicitly provided properties onto the event object - if ( props ) { - jQuery.extend( this, props ); + // Use same guid so caller can remove using origFn + fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ ); } + return elem.each( function() { + jQuery.event.add( this, types, fn, data, selector ); + } ); +} - // Create a timestamp if incoming event doesn't have one - this.timeStamp = src && src.timeStamp || jQuery.now(); - - // Mark it as fixed - this[ jQuery.expando ] = true; -}; +/* + * Helper functions for managing events -- not part of the public interface. + * Props to Dean Edwards' addEvent library for many of the ideas. + */ +jQuery.event = { -// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding -// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html -jQuery.Event.prototype = { - isDefaultPrevented: returnFalse, - isPropagationStopped: returnFalse, - isImmediatePropagationStopped: returnFalse, + global: {}, - preventDefault: function() { - var e = this.originalEvent; + add: function( elem, types, handler, data, selector ) { - this.isDefaultPrevented = returnTrue; + var handleObjIn, eventHandle, tmp, + events, t, handleObj, + special, handlers, type, namespaces, origType, + elemData = dataPriv.get( elem ); - if ( e && e.preventDefault ) { - e.preventDefault(); + // Only attach events to objects that accept data + if ( !acceptData( elem ) ) { + return; } - }, - stopPropagation: function() { - var e = this.originalEvent; - - this.isPropagationStopped = returnTrue; - if ( e && e.stopPropagation ) { - e.stopPropagation(); + // Caller can pass in an object of custom data in lieu of the handler + if ( handler.handler ) { + handleObjIn = handler; + handler = handleObjIn.handler; + selector = handleObjIn.selector; } - }, - stopImmediatePropagation: function() { - var e = this.originalEvent; - this.isImmediatePropagationStopped = returnTrue; + // Ensure that invalid selectors throw exceptions at attach time + // Evaluate against documentElement in case elem is a non-element node (e.g., document) + if ( selector ) { + jQuery.find.matchesSelector( documentElement, selector ); + } - if ( e && e.stopImmediatePropagation ) { - e.stopImmediatePropagation(); + // Make sure that the handler has a unique ID, used to find/remove it later + if ( !handler.guid ) { + handler.guid = jQuery.guid++; } - this.stopPropagation(); - } -}; + // Init the element's event structure and main handler, if this is the first + if ( !( events = elemData.events ) ) { + events = elemData.events = Object.create( null ); + } + if ( !( eventHandle = elemData.handle ) ) { + eventHandle = elemData.handle = function( e ) { -// Create mouseenter/leave events using mouseover/out and event-time checks -// Support: Chrome 15+ -jQuery.each({ - mouseenter: "mouseover", - mouseleave: "mouseout", - pointerenter: "pointerover", - pointerleave: "pointerout" -}, function( orig, fix ) { - jQuery.event.special[ orig ] = { - delegateType: fix, - bindType: fix, + // Discard the second event of a jQuery.event.trigger() and + // when an event is called after a page has unloaded + return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ? + jQuery.event.dispatch.apply( elem, arguments ) : undefined; + }; + } - handle: function( event ) { - var ret, - target = this, - related = event.relatedTarget, - handleObj = event.handleObj; + // Handle multiple events separated by a space + types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; + t = types.length; + while ( t-- ) { + tmp = rtypenamespace.exec( types[ t ] ) || []; + type = origType = tmp[ 1 ]; + namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); - // For mousenter/leave call the handler if related is outside the target. - // NB: No relatedTarget if the mouse left/entered the browser window - if ( !related || (related !== target && !jQuery.contains( target, related )) ) { - event.type = handleObj.origType; - ret = handleObj.handler.apply( this, arguments ); - event.type = fix; + // There *must* be a type, no attaching namespace-only handlers + if ( !type ) { + continue; } - return ret; - } - }; -}); -// Support: Firefox, Chrome, Safari -// Create "bubbling" focus and blur events -if ( !support.focusinBubbles ) { - jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) { + // If event changes its type, use the special event handlers for the changed type + special = jQuery.event.special[ type ] || {}; - // Attach a single capturing handler on the document while someone wants focusin/focusout - var handler = function( event ) { - jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true ); - }; + // If selector defined, determine special event api type, otherwise given type + type = ( selector ? special.delegateType : special.bindType ) || type; - jQuery.event.special[ fix ] = { - setup: function() { - var doc = this.ownerDocument || this, - attaches = data_priv.access( doc, fix ); + // Update special based on newly reset type + special = jQuery.event.special[ type ] || {}; - if ( !attaches ) { - doc.addEventListener( orig, handler, true ); - } - data_priv.access( doc, fix, ( attaches || 0 ) + 1 ); - }, - teardown: function() { - var doc = this.ownerDocument || this, - attaches = data_priv.access( doc, fix ) - 1; + // handleObj is passed to all event handlers + handleObj = jQuery.extend( { + type: type, + origType: origType, + data: data, + handler: handler, + guid: handler.guid, + selector: selector, + needsContext: selector && jQuery.expr.match.needsContext.test( selector ), + namespace: namespaces.join( "." ) + }, handleObjIn ); - if ( !attaches ) { - doc.removeEventListener( orig, handler, true ); - data_priv.remove( doc, fix ); + // Init the event handler queue if we're the first + if ( !( handlers = events[ type ] ) ) { + handlers = events[ type ] = []; + handlers.delegateCount = 0; - } else { - data_priv.access( doc, fix, attaches ); + // Only use addEventListener if the special events handler returns false + if ( !special.setup || + special.setup.call( elem, data, namespaces, eventHandle ) === false ) { + + if ( elem.addEventListener ) { + elem.addEventListener( type, eventHandle ); + } } } - }; - }); -} -jQuery.fn.extend({ - - on: function( types, selector, data, fn, /*INTERNAL*/ one ) { - var origFn, type; + if ( special.add ) { + special.add.call( elem, handleObj ); - // Types can be a map of types/handlers - if ( typeof types === "object" ) { - // ( types-Object, selector, data ) - if ( typeof selector !== "string" ) { - // ( types-Object, data ) - data = data || selector; - selector = undefined; - } - for ( type in types ) { - this.on( type, selector, data, types[ type ], one ); + if ( !handleObj.handler.guid ) { + handleObj.handler.guid = handler.guid; + } } - return this; - } - if ( data == null && fn == null ) { - // ( types, fn ) - fn = selector; - data = selector = undefined; - } else if ( fn == null ) { - if ( typeof selector === "string" ) { - // ( types, selector, fn ) - fn = data; - data = undefined; + // Add to the element's handler list, delegates in front + if ( selector ) { + handlers.splice( handlers.delegateCount++, 0, handleObj ); } else { - // ( types, data, fn ) - fn = data; - data = selector; - selector = undefined; + handlers.push( handleObj ); } - } - if ( fn === false ) { - fn = returnFalse; - } else if ( !fn ) { - return this; - } - if ( one === 1 ) { - origFn = fn; - fn = function( event ) { - // Can use an empty set, since event contains the info - jQuery().off( event ); - return origFn.apply( this, arguments ); - }; - // Use same guid so caller can remove using origFn - fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ ); + // Keep track of which events have ever been used, for event optimization + jQuery.event.global[ type ] = true; } - return this.each( function() { - jQuery.event.add( this, types, fn, data, selector ); - }); + }, - one: function( types, selector, data, fn ) { - return this.on( types, selector, data, fn, 1 ); - }, - off: function( types, selector, fn ) { - var handleObj, type; - if ( types && types.preventDefault && types.handleObj ) { - // ( event ) dispatched jQuery.Event - handleObj = types.handleObj; - jQuery( types.delegateTarget ).off( - handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType, - handleObj.selector, - handleObj.handler - ); - return this; + + // Detach an event or set of events from an element + remove: function( elem, types, handler, selector, mappedTypes ) { + + var j, origCount, tmp, + events, t, handleObj, + special, handlers, type, namespaces, origType, + elemData = dataPriv.hasData( elem ) && dataPriv.get( elem ); + + if ( !elemData || !( events = elemData.events ) ) { + return; } - if ( typeof types === "object" ) { - // ( types-object [, selector] ) - for ( type in types ) { - this.off( type, selector, types[ type ] ); + + // Once for each type.namespace in types; type may be omitted + types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; + t = types.length; + while ( t-- ) { + tmp = rtypenamespace.exec( types[ t ] ) || []; + type = origType = tmp[ 1 ]; + namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); + + // Unbind all events (on this namespace, if provided) for the element + if ( !type ) { + for ( type in events ) { + jQuery.event.remove( elem, type + types[ t ], handler, selector, true ); + } + continue; } - return this; - } - if ( selector === false || typeof selector === "function" ) { - // ( types [, fn] ) - fn = selector; - selector = undefined; - } - if ( fn === false ) { - fn = returnFalse; - } - return this.each(function() { - jQuery.event.remove( this, types, fn, selector ); - }); - }, - trigger: function( type, data ) { - return this.each(function() { - jQuery.event.trigger( type, data, this ); - }); - }, - triggerHandler: function( type, data ) { - var elem = this[0]; - if ( elem ) { - return jQuery.event.trigger( type, data, elem, true ); - } - } -}); + special = jQuery.event.special[ type ] || {}; + type = ( selector ? special.delegateType : special.bindType ) || type; + handlers = events[ type ] || []; + tmp = tmp[ 2 ] && + new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ); + // Remove matching events + origCount = j = handlers.length; + while ( j-- ) { + handleObj = handlers[ j ]; -var - rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi, - rtagName = /<([\w:]+)/, - rhtml = /<|&#?\w+;/, - rnoInnerhtml = /<(?:script|style|link)/i, - // checked="checked" or checked - rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i, - rscriptType = /^$|\/(?:java|ecma)script/i, - rscriptTypeMasked = /^true\/(.*)/, - rcleanScript = /^\s*\s*$/g, + if ( ( mappedTypes || origType === handleObj.origType ) && + ( !handler || handler.guid === handleObj.guid ) && + ( !tmp || tmp.test( handleObj.namespace ) ) && + ( !selector || selector === handleObj.selector || + selector === "**" && handleObj.selector ) ) { + handlers.splice( j, 1 ); - // We have to close these tags to support XHTML (#13200) - wrapMap = { + if ( handleObj.selector ) { + handlers.delegateCount--; + } + if ( special.remove ) { + special.remove.call( elem, handleObj ); + } + } + } - // Support: IE9 - option: [ 1, "" ], + // Remove generic event handler if we removed something and no more handlers exist + // (avoids potential for endless recursion during removal of special event handlers) + if ( origCount && !handlers.length ) { + if ( !special.teardown || + special.teardown.call( elem, namespaces, elemData.handle ) === false ) { - thead: [ 1, "", "
" ], - col: [ 2, "", "
" ], - tr: [ 2, "", "
" ], - td: [ 3, "", "
" ], + jQuery.removeEvent( elem, type, elemData.handle ); + } - _default: [ 0, "", "" ] - }; + delete events[ type ]; + } + } -// Support: IE9 -wrapMap.optgroup = wrapMap.option; + // Remove data and the expando if it's no longer used + if ( jQuery.isEmptyObject( events ) ) { + dataPriv.remove( elem, "handle events" ); + } + }, -wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead; -wrapMap.th = wrapMap.td; + dispatch: function( nativeEvent ) { -// Support: 1.x compatibility -// Manipulating tables requires a tbody -function manipulationTarget( elem, content ) { - return jQuery.nodeName( elem, "table" ) && - jQuery.nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ? + var i, j, ret, matched, handleObj, handlerQueue, + args = new Array( arguments.length ), - elem.getElementsByTagName("tbody")[0] || - elem.appendChild( elem.ownerDocument.createElement("tbody") ) : - elem; -} + // Make a writable jQuery.Event from the native event object + event = jQuery.event.fix( nativeEvent ), -// Replace/restore the type attribute of script elements for safe DOM manipulation -function disableScript( elem ) { - elem.type = (elem.getAttribute("type") !== null) + "/" + elem.type; - return elem; -} -function restoreScript( elem ) { - var match = rscriptTypeMasked.exec( elem.type ); + handlers = ( + dataPriv.get( this, "events" ) || Object.create( null ) + )[ event.type ] || [], + special = jQuery.event.special[ event.type ] || {}; - if ( match ) { - elem.type = match[ 1 ]; - } else { - elem.removeAttribute("type"); - } + // Use the fix-ed jQuery.Event rather than the (read-only) native event + args[ 0 ] = event; - return elem; -} + for ( i = 1; i < arguments.length; i++ ) { + args[ i ] = arguments[ i ]; + } -// Mark scripts as having already been evaluated -function setGlobalEval( elems, refElements ) { - var i = 0, - l = elems.length; + event.delegateTarget = this; - for ( ; i < l; i++ ) { - data_priv.set( - elems[ i ], "globalEval", !refElements || data_priv.get( refElements[ i ], "globalEval" ) - ); - } -} + // Call the preDispatch hook for the mapped type, and let it bail if desired + if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) { + return; + } -function cloneCopyEvent( src, dest ) { - var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events; + // Determine handlers + handlerQueue = jQuery.event.handlers.call( this, event, handlers ); - if ( dest.nodeType !== 1 ) { - return; - } + // Run delegates first; they may want to stop propagation beneath us + i = 0; + while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) { + event.currentTarget = matched.elem; - // 1. Copy private data: events, handlers, etc. - if ( data_priv.hasData( src ) ) { - pdataOld = data_priv.access( src ); - pdataCur = data_priv.set( dest, pdataOld ); - events = pdataOld.events; + j = 0; + while ( ( handleObj = matched.handlers[ j++ ] ) && + !event.isImmediatePropagationStopped() ) { - if ( events ) { - delete pdataCur.handle; - pdataCur.events = {}; + // If the event is namespaced, then each handler is only invoked if it is + // specially universal or its namespaces are a superset of the event's. + if ( !event.rnamespace || handleObj.namespace === false || + event.rnamespace.test( handleObj.namespace ) ) { - for ( type in events ) { - for ( i = 0, l = events[ type ].length; i < l; i++ ) { - jQuery.event.add( dest, type, events[ type ][ i ] ); + event.handleObj = handleObj; + event.data = handleObj.data; + + ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle || + handleObj.handler ).apply( matched.elem, args ); + + if ( ret !== undefined ) { + if ( ( event.result = ret ) === false ) { + event.preventDefault(); + event.stopPropagation(); + } + } } } } - } - - // 2. Copy user data - if ( data_user.hasData( src ) ) { - udataOld = data_user.access( src ); - udataCur = jQuery.extend( {}, udataOld ); - - data_user.set( dest, udataCur ); - } -} - -function getAll( context, tag ) { - var ret = context.getElementsByTagName ? context.getElementsByTagName( tag || "*" ) : - context.querySelectorAll ? context.querySelectorAll( tag || "*" ) : - []; - return tag === undefined || tag && jQuery.nodeName( context, tag ) ? - jQuery.merge( [ context ], ret ) : - ret; -} + // Call the postDispatch hook for the mapped type + if ( special.postDispatch ) { + special.postDispatch.call( this, event ); + } -// Fix IE bugs, see support tests -function fixInput( src, dest ) { - var nodeName = dest.nodeName.toLowerCase(); + return event.result; + }, - // Fails to persist the checked state of a cloned checkbox or radio button. - if ( nodeName === "input" && rcheckableType.test( src.type ) ) { - dest.checked = src.checked; + handlers: function( event, handlers ) { + var i, handleObj, sel, matchedHandlers, matchedSelectors, + handlerQueue = [], + delegateCount = handlers.delegateCount, + cur = event.target; - // Fails to return the selected option to the default selected state when cloning options - } else if ( nodeName === "input" || nodeName === "textarea" ) { - dest.defaultValue = src.defaultValue; - } -} + // Find delegate handlers + if ( delegateCount && -jQuery.extend({ - clone: function( elem, dataAndEvents, deepDataAndEvents ) { - var i, l, srcElements, destElements, - clone = elem.cloneNode( true ), - inPage = jQuery.contains( elem.ownerDocument, elem ); + // Support: IE <=9 + // Black-hole SVG instance trees (trac-13180) + cur.nodeType && - // Fix IE cloning issues - if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && - !jQuery.isXMLDoc( elem ) ) { + // Support: Firefox <=42 + // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861) + // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click + // Support: IE 11 only + // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343) + !( event.type === "click" && event.button >= 1 ) ) { - // We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2 - destElements = getAll( clone ); - srcElements = getAll( elem ); + for ( ; cur !== this; cur = cur.parentNode || this ) { - for ( i = 0, l = srcElements.length; i < l; i++ ) { - fixInput( srcElements[ i ], destElements[ i ] ); - } - } + // Don't check non-elements (#13208) + // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764) + if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) { + matchedHandlers = []; + matchedSelectors = {}; + for ( i = 0; i < delegateCount; i++ ) { + handleObj = handlers[ i ]; - // Copy the events from the original to the clone - if ( dataAndEvents ) { - if ( deepDataAndEvents ) { - srcElements = srcElements || getAll( elem ); - destElements = destElements || getAll( clone ); + // Don't conflict with Object.prototype properties (#13203) + sel = handleObj.selector + " "; - for ( i = 0, l = srcElements.length; i < l; i++ ) { - cloneCopyEvent( srcElements[ i ], destElements[ i ] ); + if ( matchedSelectors[ sel ] === undefined ) { + matchedSelectors[ sel ] = handleObj.needsContext ? + jQuery( sel, this ).index( cur ) > -1 : + jQuery.find( sel, this, null, [ cur ] ).length; + } + if ( matchedSelectors[ sel ] ) { + matchedHandlers.push( handleObj ); + } + } + if ( matchedHandlers.length ) { + handlerQueue.push( { elem: cur, handlers: matchedHandlers } ); + } } - } else { - cloneCopyEvent( elem, clone ); } } - // Preserve script evaluation history - destElements = getAll( clone, "script" ); - if ( destElements.length > 0 ) { - setGlobalEval( destElements, !inPage && getAll( elem, "script" ) ); + // Add the remaining (directly-bound) handlers + cur = this; + if ( delegateCount < handlers.length ) { + handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } ); } - // Return the cloned set - return clone; + return handlerQueue; }, - buildFragment: function( elems, context, scripts, selection ) { - var elem, tmp, tag, wrap, contains, j, - fragment = context.createDocumentFragment(), - nodes = [], - i = 0, - l = elems.length; - - for ( ; i < l; i++ ) { - elem = elems[ i ]; + addProp: function( name, hook ) { + Object.defineProperty( jQuery.Event.prototype, name, { + enumerable: true, + configurable: true, - if ( elem || elem === 0 ) { + get: isFunction( hook ) ? + function() { + if ( this.originalEvent ) { + return hook( this.originalEvent ); + } + } : + function() { + if ( this.originalEvent ) { + return this.originalEvent[ name ]; + } + }, - // Add nodes directly - if ( jQuery.type( elem ) === "object" ) { - // Support: QtWebKit, PhantomJS - // push.apply(_, arraylike) throws on ancient WebKit - jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem ); + set: function( value ) { + Object.defineProperty( this, name, { + enumerable: true, + configurable: true, + writable: true, + value: value + } ); + } + } ); + }, - // Convert non-html into a text node - } else if ( !rhtml.test( elem ) ) { - nodes.push( context.createTextNode( elem ) ); + fix: function( originalEvent ) { + return originalEvent[ jQuery.expando ] ? + originalEvent : + new jQuery.Event( originalEvent ); + }, - // Convert html into DOM nodes - } else { - tmp = tmp || fragment.appendChild( context.createElement("div") ); + special: { + load: { - // Deserialize a standard representation - tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase(); - wrap = wrapMap[ tag ] || wrapMap._default; - tmp.innerHTML = wrap[ 1 ] + elem.replace( rxhtmlTag, "<$1>" ) + wrap[ 2 ]; + // Prevent triggered image.load events from bubbling to window.load + noBubble: true + }, + click: { - // Descend through wrappers to the right content - j = wrap[ 0 ]; - while ( j-- ) { - tmp = tmp.lastChild; - } + // Utilize native event to ensure correct state for checkable inputs + setup: function( data ) { - // Support: QtWebKit, PhantomJS - // push.apply(_, arraylike) throws on ancient WebKit - jQuery.merge( nodes, tmp.childNodes ); + // For mutual compressibility with _default, replace `this` access with a local var. + // `|| data` is dead code meant only to preserve the variable through minification. + var el = this || data; - // Remember the top-level container - tmp = fragment.firstChild; + // Claim the first handler + if ( rcheckableType.test( el.type ) && + el.click && nodeName( el, "input" ) ) { - // Ensure the created nodes are orphaned (#12392) - tmp.textContent = ""; + // dataPriv.set( el, "click", ... ) + leverageNative( el, "click", returnTrue ); } - } - } - // Remove wrapper from fragment - fragment.textContent = ""; + // Return false to allow normal processing in the caller + return false; + }, + trigger: function( data ) { - i = 0; - while ( (elem = nodes[ i++ ]) ) { + // For mutual compressibility with _default, replace `this` access with a local var. + // `|| data` is dead code meant only to preserve the variable through minification. + var el = this || data; - // #4087 - If origin and destination elements are the same, and this is - // that element, do not do anything - if ( selection && jQuery.inArray( elem, selection ) !== -1 ) { - continue; - } + // Force setup before triggering a click + if ( rcheckableType.test( el.type ) && + el.click && nodeName( el, "input" ) ) { - contains = jQuery.contains( elem.ownerDocument, elem ); + leverageNative( el, "click" ); + } - // Append to fragment - tmp = getAll( fragment.appendChild( elem ), "script" ); + // Return non-false to allow normal event-path propagation + return true; + }, - // Preserve script evaluation history - if ( contains ) { - setGlobalEval( tmp ); + // For cross-browser consistency, suppress native .click() on links + // Also prevent it if we're currently inside a leveraged native-event stack + _default: function( event ) { + var target = event.target; + return rcheckableType.test( target.type ) && + target.click && nodeName( target, "input" ) && + dataPriv.get( target, "click" ) || + nodeName( target, "a" ); } + }, - // Capture executables - if ( scripts ) { - j = 0; - while ( (elem = tmp[ j++ ]) ) { - if ( rscriptType.test( elem.type || "" ) ) { - scripts.push( elem ); - } + beforeunload: { + postDispatch: function( event ) { + + // Support: Firefox 20+ + // Firefox doesn't alert if the returnValue field is not set. + if ( event.result !== undefined && event.originalEvent ) { + event.originalEvent.returnValue = event.result; } } } + } +}; - return fragment; - }, - - cleanData: function( elems ) { - var data, elem, type, key, - special = jQuery.event.special, - i = 0; - - for ( ; (elem = elems[ i ]) !== undefined; i++ ) { - if ( jQuery.acceptData( elem ) ) { - key = elem[ data_priv.expando ]; - - if ( key && (data = data_priv.cache[ key ]) ) { - if ( data.events ) { - for ( type in data.events ) { - if ( special[ type ] ) { - jQuery.event.remove( elem, type ); +// Ensure the presence of an event listener that handles manually-triggered +// synthetic events by interrupting progress until reinvoked in response to +// *native* events that it fires directly, ensuring that state changes have +// already occurred before other listeners are invoked. +function leverageNative( el, type, expectSync ) { - // This is a shortcut to avoid jQuery.event.remove's overhead - } else { - jQuery.removeEvent( elem, type, data.handle ); - } - } - } - if ( data_priv.cache[ key ] ) { - // Discard any remaining `private` data - delete data_priv.cache[ key ]; - } - } - } - // Discard any remaining `user` data - delete data_user.cache[ elem[ data_user.expando ] ]; + // Missing expectSync indicates a trigger call, which must force setup through jQuery.event.add + if ( !expectSync ) { + if ( dataPriv.get( el, type ) === undefined ) { + jQuery.event.add( el, type, returnTrue ); } + return; } -}); -jQuery.fn.extend({ - text: function( value ) { - return access( this, function( value ) { - return value === undefined ? - jQuery.text( this ) : - this.empty().each(function() { - if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { - this.textContent = value; + // Register the controller as a special universal handler for all event namespaces + dataPriv.set( el, type, false ); + jQuery.event.add( el, type, { + namespace: false, + handler: function( event ) { + var notAsync, result, + saved = dataPriv.get( this, type ); + + if ( ( event.isTrigger & 1 ) && this[ type ] ) { + + // Interrupt processing of the outer synthetic .trigger()ed event + // Saved data should be false in such cases, but might be a leftover capture object + // from an async native handler (gh-4350) + if ( !saved.length ) { + + // Store arguments for use when handling the inner native event + // There will always be at least one argument (an event object), so this array + // will not be confused with a leftover capture object. + saved = slice.call( arguments ); + dataPriv.set( this, type, saved ); + + // Trigger the native event and capture its result + // Support: IE <=9 - 11+ + // focus() and blur() are asynchronous + notAsync = expectSync( this, type ); + this[ type ](); + result = dataPriv.get( this, type ); + if ( saved !== result || notAsync ) { + dataPriv.set( this, type, false ); + } else { + result = {}; } - }); - }, null, value, arguments.length ); - }, + if ( saved !== result ) { - append: function() { - return this.domManip( arguments, function( elem ) { - if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { - var target = manipulationTarget( this, elem ); - target.appendChild( elem ); - } - }); - }, - - prepend: function() { - return this.domManip( arguments, function( elem ) { - if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { - var target = manipulationTarget( this, elem ); - target.insertBefore( elem, target.firstChild ); - } - }); - }, + // Cancel the outer synthetic event + event.stopImmediatePropagation(); + event.preventDefault(); + return result.value; + } - before: function() { - return this.domManip( arguments, function( elem ) { - if ( this.parentNode ) { - this.parentNode.insertBefore( elem, this ); - } - }); - }, + // If this is an inner synthetic event for an event with a bubbling surrogate + // (focus or blur), assume that the surrogate already propagated from triggering the + // native event and prevent that from happening again here. + // This technically gets the ordering wrong w.r.t. to `.trigger()` (in which the + // bubbling surrogate propagates *after* the non-bubbling base), but that seems + // less bad than duplication. + } else if ( ( jQuery.event.special[ type ] || {} ).delegateType ) { + event.stopPropagation(); + } - after: function() { - return this.domManip( arguments, function( elem ) { - if ( this.parentNode ) { - this.parentNode.insertBefore( elem, this.nextSibling ); - } - }); - }, + // If this is a native event triggered above, everything is now in order + // Fire an inner synthetic event with the original arguments + } else if ( saved.length ) { - remove: function( selector, keepData /* Internal Use Only */ ) { - var elem, - elems = selector ? jQuery.filter( selector, this ) : this, - i = 0; + // ...and capture the result + dataPriv.set( this, type, { + value: jQuery.event.trigger( - for ( ; (elem = elems[i]) != null; i++ ) { - if ( !keepData && elem.nodeType === 1 ) { - jQuery.cleanData( getAll( elem ) ); - } + // Support: IE <=9 - 11+ + // Extend with the prototype to reset the above stopImmediatePropagation() + jQuery.extend( saved[ 0 ], jQuery.Event.prototype ), + saved.slice( 1 ), + this + ) + } ); - if ( elem.parentNode ) { - if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) { - setGlobalEval( getAll( elem, "script" ) ); - } - elem.parentNode.removeChild( elem ); + // Abort handling of the native event + event.stopImmediatePropagation(); } } + } ); +} - return this; - }, +jQuery.removeEvent = function( elem, type, handle ) { - empty: function() { - var elem, - i = 0; + // This "if" is needed for plain objects + if ( elem.removeEventListener ) { + elem.removeEventListener( type, handle ); + } +}; - for ( ; (elem = this[i]) != null; i++ ) { - if ( elem.nodeType === 1 ) { +jQuery.Event = function( src, props ) { - // Prevent memory leaks - jQuery.cleanData( getAll( elem, false ) ); + // Allow instantiation without the 'new' keyword + if ( !( this instanceof jQuery.Event ) ) { + return new jQuery.Event( src, props ); + } - // Remove any remaining nodes - elem.textContent = ""; - } - } + // Event object + if ( src && src.type ) { + this.originalEvent = src; + this.type = src.type; - return this; - }, + // Events bubbling up the document may have been marked as prevented + // by a handler lower down the tree; reflect the correct value. + this.isDefaultPrevented = src.defaultPrevented || + src.defaultPrevented === undefined && - clone: function( dataAndEvents, deepDataAndEvents ) { - dataAndEvents = dataAndEvents == null ? false : dataAndEvents; - deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents; + // Support: Android <=2.3 only + src.returnValue === false ? + returnTrue : + returnFalse; - return this.map(function() { - return jQuery.clone( this, dataAndEvents, deepDataAndEvents ); - }); - }, + // Create target properties + // Support: Safari <=6 - 7 only + // Target should not be a text node (#504, #13143) + this.target = ( src.target && src.target.nodeType === 3 ) ? + src.target.parentNode : + src.target; - html: function( value ) { - return access( this, function( value ) { - var elem = this[ 0 ] || {}, - i = 0, - l = this.length; + this.currentTarget = src.currentTarget; + this.relatedTarget = src.relatedTarget; - if ( value === undefined && elem.nodeType === 1 ) { - return elem.innerHTML; - } + // Event type + } else { + this.type = src; + } - // See if we can take a shortcut and just use innerHTML - if ( typeof value === "string" && !rnoInnerhtml.test( value ) && - !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) { + // Put explicitly provided properties onto the event object + if ( props ) { + jQuery.extend( this, props ); + } - value = value.replace( rxhtmlTag, "<$1>" ); + // Create a timestamp if incoming event doesn't have one + this.timeStamp = src && src.timeStamp || Date.now(); - try { - for ( ; i < l; i++ ) { - elem = this[ i ] || {}; + // Mark it as fixed + this[ jQuery.expando ] = true; +}; - // Remove element nodes and prevent memory leaks - if ( elem.nodeType === 1 ) { - jQuery.cleanData( getAll( elem, false ) ); - elem.innerHTML = value; - } - } +// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding +// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html +jQuery.Event.prototype = { + constructor: jQuery.Event, + isDefaultPrevented: returnFalse, + isPropagationStopped: returnFalse, + isImmediatePropagationStopped: returnFalse, + isSimulated: false, - elem = 0; + preventDefault: function() { + var e = this.originalEvent; - // If using innerHTML throws an exception, use the fallback method - } catch( e ) {} - } + this.isDefaultPrevented = returnTrue; - if ( elem ) { - this.empty().append( value ); - } - }, null, value, arguments.length ); + if ( e && !this.isSimulated ) { + e.preventDefault(); + } }, + stopPropagation: function() { + var e = this.originalEvent; - replaceWith: function() { - var arg = arguments[ 0 ]; - - // Make the changes, replacing each context element with the new content - this.domManip( arguments, function( elem ) { - arg = this.parentNode; + this.isPropagationStopped = returnTrue; - jQuery.cleanData( getAll( this ) ); + if ( e && !this.isSimulated ) { + e.stopPropagation(); + } + }, + stopImmediatePropagation: function() { + var e = this.originalEvent; - if ( arg ) { - arg.replaceChild( elem, this ); - } - }); + this.isImmediatePropagationStopped = returnTrue; - // Force removal if there was no new content (e.g., from empty arguments) - return arg && (arg.length || arg.nodeType) ? this : this.remove(); - }, + if ( e && !this.isSimulated ) { + e.stopImmediatePropagation(); + } - detach: function( selector ) { - return this.remove( selector, true ); - }, + this.stopPropagation(); + } +}; - domManip: function( args, callback ) { +// Includes all common event props including KeyEvent and MouseEvent specific props +jQuery.each( { + altKey: true, + bubbles: true, + cancelable: true, + changedTouches: true, + ctrlKey: true, + detail: true, + eventPhase: true, + metaKey: true, + pageX: true, + pageY: true, + shiftKey: true, + view: true, + "char": true, + code: true, + charCode: true, + key: true, + keyCode: true, + button: true, + buttons: true, + clientX: true, + clientY: true, + offsetX: true, + offsetY: true, + pointerId: true, + pointerType: true, + screenX: true, + screenY: true, + targetTouches: true, + toElement: true, + touches: true, + + which: function( event ) { + var button = event.button; + + // Add which for key events + if ( event.which == null && rkeyEvent.test( event.type ) ) { + return event.charCode != null ? event.charCode : event.keyCode; + } + + // Add which for click: 1 === left; 2 === middle; 3 === right + if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) { + if ( button & 1 ) { + return 1; + } - // Flatten any nested arrays - args = concat.apply( [], args ); + if ( button & 2 ) { + return 3; + } - var fragment, first, scripts, hasScripts, node, doc, - i = 0, - l = this.length, - set = this, - iNoClone = l - 1, - value = args[ 0 ], - isFunction = jQuery.isFunction( value ); + if ( button & 4 ) { + return 2; + } - // We can't cloneNode fragments that contain checked, in WebKit - if ( isFunction || - ( l > 1 && typeof value === "string" && - !support.checkClone && rchecked.test( value ) ) ) { - return this.each(function( index ) { - var self = set.eq( index ); - if ( isFunction ) { - args[ 0 ] = value.call( this, index, self.html() ); - } - self.domManip( args, callback ); - }); + return 0; } - if ( l ) { - fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, this ); - first = fragment.firstChild; + return event.which; + } +}, jQuery.event.addProp ); - if ( fragment.childNodes.length === 1 ) { - fragment = first; - } +jQuery.each( { focus: "focusin", blur: "focusout" }, function( type, delegateType ) { + jQuery.event.special[ type ] = { - if ( first ) { - scripts = jQuery.map( getAll( fragment, "script" ), disableScript ); - hasScripts = scripts.length; + // Utilize native event if possible so blur/focus sequence is correct + setup: function() { - // Use the original fragment for the last item instead of the first because it can end up - // being emptied incorrectly in certain situations (#8070). - for ( ; i < l; i++ ) { - node = fragment; + // Claim the first handler + // dataPriv.set( this, "focus", ... ) + // dataPriv.set( this, "blur", ... ) + leverageNative( this, type, expectSync ); - if ( i !== iNoClone ) { - node = jQuery.clone( node, true, true ); + // Return false to allow normal processing in the caller + return false; + }, + trigger: function() { - // Keep references to cloned scripts for later restoration - if ( hasScripts ) { - // Support: QtWebKit - // jQuery.merge because push.apply(_, arraylike) throws - jQuery.merge( scripts, getAll( node, "script" ) ); - } - } + // Force setup before trigger + leverageNative( this, type ); - callback.call( this[ i ], node, i ); - } + // Return non-false to allow normal event-path propagation + return true; + }, - if ( hasScripts ) { - doc = scripts[ scripts.length - 1 ].ownerDocument; + delegateType: delegateType + }; +} ); - // Reenable scripts - jQuery.map( scripts, restoreScript ); +// Create mouseenter/leave events using mouseover/out and event-time checks +// so that event delegation works in jQuery. +// Do the same for pointerenter/pointerleave and pointerover/pointerout +// +// Support: Safari 7 only +// Safari sends mouseenter too often; see: +// https://bugs.chromium.org/p/chromium/issues/detail?id=470258 +// for the description of the bug (it existed in older Chrome versions as well). +jQuery.each( { + mouseenter: "mouseover", + mouseleave: "mouseout", + pointerenter: "pointerover", + pointerleave: "pointerout" +}, function( orig, fix ) { + jQuery.event.special[ orig ] = { + delegateType: fix, + bindType: fix, - // Evaluate executable scripts on first document insertion - for ( i = 0; i < hasScripts; i++ ) { - node = scripts[ i ]; - if ( rscriptType.test( node.type || "" ) && - !data_priv.access( node, "globalEval" ) && jQuery.contains( doc, node ) ) { + handle: function( event ) { + var ret, + target = this, + related = event.relatedTarget, + handleObj = event.handleObj; - if ( node.src ) { - // Optional AJAX dependency, but won't run scripts if not present - if ( jQuery._evalUrl ) { - jQuery._evalUrl( node.src ); - } - } else { - jQuery.globalEval( node.textContent.replace( rcleanScript, "" ) ); - } - } - } - } + // For mouseenter/leave call the handler if related is outside the target. + // NB: No relatedTarget if the mouse left/entered the browser window + if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) { + event.type = handleObj.origType; + ret = handleObj.handler.apply( this, arguments ); + event.type = fix; } + return ret; } + }; +} ); - return this; - } -}); +jQuery.fn.extend( { -jQuery.each({ - appendTo: "append", - prependTo: "prepend", - insertBefore: "before", - insertAfter: "after", - replaceAll: "replaceWith" -}, function( name, original ) { - jQuery.fn[ name ] = function( selector ) { - var elems, - ret = [], - insert = jQuery( selector ), - last = insert.length - 1, - i = 0; + on: function( types, selector, data, fn ) { + return on( this, types, selector, data, fn ); + }, + one: function( types, selector, data, fn ) { + return on( this, types, selector, data, fn, 1 ); + }, + off: function( types, selector, fn ) { + var handleObj, type; + if ( types && types.preventDefault && types.handleObj ) { - for ( ; i <= last; i++ ) { - elems = i === last ? this : this.clone( true ); - jQuery( insert[ i ] )[ original ]( elems ); + // ( event ) dispatched jQuery.Event + handleObj = types.handleObj; + jQuery( types.delegateTarget ).off( + handleObj.namespace ? + handleObj.origType + "." + handleObj.namespace : + handleObj.origType, + handleObj.selector, + handleObj.handler + ); + return this; + } + if ( typeof types === "object" ) { - // Support: QtWebKit - // .get() because push.apply(_, arraylike) throws - push.apply( ret, elems.get() ); + // ( types-object [, selector] ) + for ( type in types ) { + this.off( type, selector, types[ type ] ); + } + return this; } + if ( selector === false || typeof selector === "function" ) { - return this.pushStack( ret ); - }; -}); + // ( types [, fn] ) + fn = selector; + selector = undefined; + } + if ( fn === false ) { + fn = returnFalse; + } + return this.each( function() { + jQuery.event.remove( this, types, fn, selector ); + } ); + } +} ); -var iframe, - elemdisplay = {}; +var -/** - * Retrieve the actual display of a element - * @param {String} name nodeName of the element - * @param {Object} doc Document object - */ -// Called only from within defaultDisplay -function actualDisplay( name, doc ) { - var style, - elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ), + // Support: IE <=10 - 11, Edge 12 - 13 only + // In IE/Edge using regex groups here causes severe slowdowns. + // See https://connect.microsoft.com/IE/feedback/details/1736512/ + rnoInnerhtml = /\s*$/g; - // Use of this method is a temporary fix (more like optimization) until something better comes along, - // since it was removed from specification and supported only in FF - style.display : jQuery.css( elem[ 0 ], "display" ); +// Prefer a tbody over its parent table for containing new rows +function manipulationTarget( elem, content ) { + if ( nodeName( elem, "table" ) && + nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) { - // We don't have any data stored on the element, - // so use "detach" method as fast way to get rid of the element - elem.detach(); + return jQuery( elem ).children( "tbody" )[ 0 ] || elem; + } - return display; + return elem; } -/** - * Try to determine the default display value of an element - * @param {String} nodeName - */ -function defaultDisplay( nodeName ) { - var doc = document, - display = elemdisplay[ nodeName ]; - - if ( !display ) { - display = actualDisplay( nodeName, doc ); - - // If the simple way fails, read from inside an iframe - if ( display === "none" || !display ) { - - // Use the already-created iframe if possible - iframe = (iframe || jQuery( "