main
js 8,495 lines 222 KB
Raw
1 /*!
2 * jQuery JavaScript Library v3.4.1 -ajax,-ajax/jsonp,-ajax/load,-ajax/parseXML,-ajax/script,-ajax/var/location,-ajax/var/nonce,-ajax/var/rquery,-ajax/xhr,-manipulation/_evalUrl,-event/ajax,-effects,-effects/Tween,-effects/animatedSelector
3 * https://jquery.com/
4 *
5 * Includes Sizzle.js
6 * https://sizzlejs.com/
7 *
8 * Copyright JS Foundation and other contributors
9 * Released under the MIT license
10 * https://jquery.org/license
11 *
12 * Date: 2019-05-01T21:04Z
13 */
14 ( function( global, factory ) {
15
16 "use strict";
17
18 if ( typeof module === "object" && typeof module.exports === "object" ) {
19
20 // For CommonJS and CommonJS-like environments where a proper `window`
21 // is present, execute the factory and get jQuery.
22 // For environments that do not have a `window` with a `document`
23 // (such as Node.js), expose a factory as module.exports.
24 // This accentuates the need for the creation of a real `window`.
25 // e.g. var jQuery = require("jquery")(window);
26 // See ticket #14549 for more info.
27 module.exports = global.document ?
28 factory( global, true ) :
29 function( w ) {
30 if ( !w.document ) {
31 throw new Error( "jQuery requires a window with a document" );
32 }
33 return factory( w );
34 };
35 } else {
36 factory( global );
37 }
38
39 // Pass this if window is not defined yet
40 } )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
41
42 // Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
43 // throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
44 // arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
45 // enough that all such attempts are guarded in a try block.
46 "use strict";
47
48 var arr = [];
49
50 var document = window.document;
51
52 var getProto = Object.getPrototypeOf;
53
54 var slice = arr.slice;
55
56 var concat = arr.concat;
57
58 var push = arr.push;
59
60 var indexOf = arr.indexOf;
61
62 var class2type = {};
63
64 var toString = class2type.toString;
65
66 var hasOwn = class2type.hasOwnProperty;
67
68 var fnToString = hasOwn.toString;
69
70 var ObjectFunctionString = fnToString.call( Object );
71
72 var support = {};
73
74 var isFunction = function isFunction( obj ) {
75
76 // Support: Chrome <=57, Firefox <=52
77 // In some browsers, typeof returns "function" for HTML <object> elements
78 // (i.e., `typeof document.createElement( "object" ) === "function"`).
79 // We don't want to classify *any* DOM node as a function.
80 return typeof obj === "function" && typeof obj.nodeType !== "number";
81 };
82
83
84 var isWindow = function isWindow( obj ) {
85 return obj != null && obj === obj.window;
86 };
87
88
89
90
91 var preservedScriptAttributes = {
92 type: true,
93 src: true,
94 nonce: true,
95 noModule: true
96 };
97
98 function DOMEval( code, node, doc ) {
99 doc = doc || document;
100
101 var i, val,
102 script = doc.createElement( "script" );
103
104 script.text = code;
105 if ( node ) {
106 for ( i in preservedScriptAttributes ) {
107
108 // Support: Firefox 64+, Edge 18+
109 // Some browsers don't support the "nonce" property on scripts.
110 // On the other hand, just using `getAttribute` is not enough as
111 // the `nonce` attribute is reset to an empty string whenever it
112 // becomes browsing-context connected.
113 // See https://github.com/whatwg/html/issues/2369
114 // See https://html.spec.whatwg.org/#nonce-attributes
115 // The `node.getAttribute` check was added for the sake of
116 // `jQuery.globalEval` so that it can fake a nonce-containing node
117 // via an object.
118 val = node[ i ] || node.getAttribute && node.getAttribute( i );
119 if ( val ) {
120 script.setAttribute( i, val );
121 }
122 }
123 }
124 doc.head.appendChild( script ).parentNode.removeChild( script );
125 }
126
127
128 function toType( obj ) {
129 if ( obj == null ) {
130 return obj + "";
131 }
132
133 // Support: Android <=2.3 only (functionish RegExp)
134 return typeof obj === "object" || typeof obj === "function" ?
135 class2type[ toString.call( obj ) ] || "object" :
136 typeof obj;
137 }
138 /* global Symbol */
139 // Defining this global in .eslintrc.json would create a danger of using the global
140 // unguarded in another place, it seems safer to define global only for this module
141
142
143
144 var
145 version = "3.4.1 -ajax,-ajax/jsonp,-ajax/load,-ajax/parseXML,-ajax/script,-ajax/var/location,-ajax/var/nonce,-ajax/var/rquery,-ajax/xhr,-manipulation/_evalUrl,-event/ajax,-effects,-effects/Tween,-effects/animatedSelector",
146
147 // Define a local copy of jQuery
148 jQuery = function( selector, context ) {
149
150 // The jQuery object is actually just the init constructor 'enhanced'
151 // Need init if jQuery is called (just allow error to be thrown if not included)
152 return new jQuery.fn.init( selector, context );
153 },
154
155 // Support: Android <=4.0 only
156 // Make sure we trim BOM and NBSP
157 rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
158
159 jQuery.fn = jQuery.prototype = {
160
161 // The current version of jQuery being used
162 jquery: version,
163
164 constructor: jQuery,
165
166 // The default length of a jQuery object is 0
167 length: 0,
168
169 toArray: function() {
170 return slice.call( this );
171 },
172
173 // Get the Nth element in the matched element set OR
174 // Get the whole matched element set as a clean array
175 get: function( num ) {
176
177 // Return all the elements in a clean array
178 if ( num == null ) {
179 return slice.call( this );
180 }
181
182 // Return just the one element from the set
183 return num < 0 ? this[ num + this.length ] : this[ num ];
184 },
185
186 // Take an array of elements and push it onto the stack
187 // (returning the new matched element set)
188 pushStack: function( elems ) {
189
190 // Build a new jQuery matched element set
191 var ret = jQuery.merge( this.constructor(), elems );
192
193 // Add the old object onto the stack (as a reference)
194 ret.prevObject = this;
195
196 // Return the newly-formed element set
197 return ret;
198 },
199
200 // Execute a callback for every element in the matched set.
201 each: function( callback ) {
202 return jQuery.each( this, callback );
203 },
204
205 map: function( callback ) {
206 return this.pushStack( jQuery.map( this, function( elem, i ) {
207 return callback.call( elem, i, elem );
208 } ) );
209 },
210
211 slice: function() {
212 return this.pushStack( slice.apply( this, arguments ) );
213 },
214
215 first: function() {
216 return this.eq( 0 );
217 },
218
219 last: function() {
220 return this.eq( -1 );
221 },
222
223 eq: function( i ) {
224 var len = this.length,
225 j = +i + ( i < 0 ? len : 0 );
226 return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
227 },
228
229 end: function() {
230 return this.prevObject || this.constructor();
231 },
232
233 // For internal use only.
234 // Behaves like an Array's method, not like a jQuery method.
235 push: push,
236 sort: arr.sort,
237 splice: arr.splice
238 };
239
240 jQuery.extend = jQuery.fn.extend = function() {
241 var options, name, src, copy, copyIsArray, clone,
242 target = arguments[ 0 ] || {},
243 i = 1,
244 length = arguments.length,
245 deep = false;
246
247 // Handle a deep copy situation
248 if ( typeof target === "boolean" ) {
249 deep = target;
250
251 // Skip the boolean and the target
252 target = arguments[ i ] || {};
253 i++;
254 }
255
256 // Handle case when target is a string or something (possible in deep copy)
257 if ( typeof target !== "object" && !isFunction( target ) ) {
258 target = {};
259 }
260
261 // Extend jQuery itself if only one argument is passed
262 if ( i === length ) {
263 target = this;
264 i--;
265 }
266
267 for ( ; i < length; i++ ) {
268
269 // Only deal with non-null/undefined values
270 if ( ( options = arguments[ i ] ) != null ) {
271
272 // Extend the base object
273 for ( name in options ) {
274 copy = options[ name ];
275
276 // Prevent Object.prototype pollution
277 // Prevent never-ending loop
278 if ( name === "__proto__" || target === copy ) {
279 continue;
280 }
281
282 // Recurse if we're merging plain objects or arrays
283 if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
284 ( copyIsArray = Array.isArray( copy ) ) ) ) {
285 src = target[ name ];
286
287 // Ensure proper type for the source value
288 if ( copyIsArray && !Array.isArray( src ) ) {
289 clone = [];
290 } else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) {
291 clone = {};
292 } else {
293 clone = src;
294 }
295 copyIsArray = false;
296
297 // Never move original objects, clone them
298 target[ name ] = jQuery.extend( deep, clone, copy );
299
300 // Don't bring in undefined values
301 } else if ( copy !== undefined ) {
302 target[ name ] = copy;
303 }
304 }
305 }
306 }
307
308 // Return the modified object
309 return target;
310 };
311
312 jQuery.extend( {
313
314 // Unique for each copy of jQuery on the page
315 expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
316
317 // Assume jQuery is ready without the ready module
318 isReady: true,
319
320 error: function( msg ) {
321 throw new Error( msg );
322 },
323
324 noop: function() {},
325
326 isPlainObject: function( obj ) {
327 var proto, Ctor;
328
329 // Detect obvious negatives
330 // Use toString instead of jQuery.type to catch host objects
331 if ( !obj || toString.call( obj ) !== "[object Object]" ) {
332 return false;
333 }
334
335 proto = getProto( obj );
336
337 // Objects with no prototype (e.g., `Object.create( null )`) are plain
338 if ( !proto ) {
339 return true;
340 }
341
342 // Objects with prototype are plain iff they were constructed by a global Object function
343 Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
344 return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
345 },
346
347 isEmptyObject: function( obj ) {
348 var name;
349
350 for ( name in obj ) {
351 return false;
352 }
353 return true;
354 },
355
356 // Evaluates a script in a global context
357 globalEval: function( code, options ) {
358 DOMEval( code, { nonce: options && options.nonce } );
359 },
360
361 each: function( obj, callback ) {
362 var length, i = 0;
363
364 if ( isArrayLike( obj ) ) {
365 length = obj.length;
366 for ( ; i < length; i++ ) {
367 if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
368 break;
369 }
370 }
371 } else {
372 for ( i in obj ) {
373 if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
374 break;
375 }
376 }
377 }
378
379 return obj;
380 },
381
382 // Support: Android <=4.0 only
383 trim: function( text ) {
384 return text == null ?
385 "" :
386 ( text + "" ).replace( rtrim, "" );
387 },
388
389 // results is for internal usage only
390 makeArray: function( arr, results ) {
391 var ret = results || [];
392
393 if ( arr != null ) {
394 if ( isArrayLike( Object( arr ) ) ) {
395 jQuery.merge( ret,
396 typeof arr === "string" ?
397 [ arr ] : arr
398 );
399 } else {
400 push.call( ret, arr );
401 }
402 }
403
404 return ret;
405 },
406
407 inArray: function( elem, arr, i ) {
408 return arr == null ? -1 : indexOf.call( arr, elem, i );
409 },
410
411 // Support: Android <=4.0 only, PhantomJS 1 only
412 // push.apply(_, arraylike) throws on ancient WebKit
413 merge: function( first, second ) {
414 var len = +second.length,
415 j = 0,
416 i = first.length;
417
418 for ( ; j < len; j++ ) {
419 first[ i++ ] = second[ j ];
420 }
421
422 first.length = i;
423
424 return first;
425 },
426
427 grep: function( elems, callback, invert ) {
428 var callbackInverse,
429 matches = [],
430 i = 0,
431 length = elems.length,
432 callbackExpect = !invert;
433
434 // Go through the array, only saving the items
435 // that pass the validator function
436 for ( ; i < length; i++ ) {
437 callbackInverse = !callback( elems[ i ], i );
438 if ( callbackInverse !== callbackExpect ) {
439 matches.push( elems[ i ] );
440 }
441 }
442
443 return matches;
444 },
445
446 // arg is for internal usage only
447 map: function( elems, callback, arg ) {
448 var length, value,
449 i = 0,
450 ret = [];
451
452 // Go through the array, translating each of the items to their new values
453 if ( isArrayLike( elems ) ) {
454 length = elems.length;
455 for ( ; i < length; i++ ) {
456 value = callback( elems[ i ], i, arg );
457
458 if ( value != null ) {
459 ret.push( value );
460 }
461 }
462
463 // Go through every key on the object,
464 } else {
465 for ( i in elems ) {
466 value = callback( elems[ i ], i, arg );
467
468 if ( value != null ) {
469 ret.push( value );
470 }
471 }
472 }
473
474 // Flatten any nested arrays
475 return concat.apply( [], ret );
476 },
477
478 // A global GUID counter for objects
479 guid: 1,
480
481 // jQuery.support is not used in Core but other projects attach their
482 // properties to it so it needs to exist.
483 support: support
484 } );
485
486 if ( typeof Symbol === "function" ) {
487 jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
488 }
489
490 // Populate the class2type map
491 jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
492 function( i, name ) {
493 class2type[ "[object " + name + "]" ] = name.toLowerCase();
494 } );
495
496 function isArrayLike( obj ) {
497
498 // Support: real iOS 8.2 only (not reproducible in simulator)
499 // `in` check used to prevent JIT error (gh-2145)
500 // hasOwn isn't used here due to false negatives
501 // regarding Nodelist length in IE
502 var length = !!obj && "length" in obj && obj.length,
503 type = toType( obj );
504
505 if ( isFunction( obj ) || isWindow( obj ) ) {
506 return false;
507 }
508
509 return type === "array" || length === 0 ||
510 typeof length === "number" && length > 0 && ( length - 1 ) in obj;
511 }
512 var Sizzle =
513 /*!
514 * Sizzle CSS Selector Engine v2.3.4
515 * https://sizzlejs.com/
516 *
517 * Copyright JS Foundation and other contributors
518 * Released under the MIT license
519 * https://js.foundation/
520 *
521 * Date: 2019-04-08
522 */
523 (function( window ) {
524
525 var i,
526 support,
527 Expr,
528 getText,
529 isXML,
530 tokenize,
531 compile,
532 select,
533 outermostContext,
534 sortInput,
535 hasDuplicate,
536
537 // Local document vars
538 setDocument,
539 document,
540 docElem,
541 documentIsHTML,
542 rbuggyQSA,
543 rbuggyMatches,
544 matches,
545 contains,
546
547 // Instance-specific data
548 expando = "sizzle" + 1 * new Date(),
549 preferredDoc = window.document,
550 dirruns = 0,
551 done = 0,
552 classCache = createCache(),
553 tokenCache = createCache(),
554 compilerCache = createCache(),
555 nonnativeSelectorCache = createCache(),
556 sortOrder = function( a, b ) {
557 if ( a === b ) {
558 hasDuplicate = true;
559 }
560 return 0;
561 },
562
563 // Instance methods
564 hasOwn = ({}).hasOwnProperty,
565 arr = [],
566 pop = arr.pop,
567 push_native = arr.push,
568 push = arr.push,
569 slice = arr.slice,
570 // Use a stripped-down indexOf as it's faster than native
571 // https://jsperf.com/thor-indexof-vs-for/5
572 indexOf = function( list, elem ) {
573 var i = 0,
574 len = list.length;
575 for ( ; i < len; i++ ) {
576 if ( list[i] === elem ) {
577 return i;
578 }
579 }
580 return -1;
581 },
582
583 booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
584
585 // Regular expressions
586
587 // http://www.w3.org/TR/css3-selectors/#whitespace
588 whitespace = "[\\x20\\t\\r\\n\\f]",
589
590 // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
591 identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",
592
593 // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
594 attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
595 // Operator (capture 2)
596 "*([*^$|!~]?=)" + whitespace +
597 // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
598 "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
599 "*\\]",
600
601 pseudos = ":(" + identifier + ")(?:\\((" +
602 // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
603 // 1. quoted (capture 3; capture 4 or capture 5)
604 "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
605 // 2. simple (capture 6)
606 "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
607 // 3. anything else (capture 2)
608 ".*" +
609 ")\\)|)",
610
611 // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
612 rwhitespace = new RegExp( whitespace + "+", "g" ),
613 rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
614
615 rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
616 rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
617 rdescend = new RegExp( whitespace + "|>" ),
618
619 rpseudo = new RegExp( pseudos ),
620 ridentifier = new RegExp( "^" + identifier + "$" ),
621
622 matchExpr = {
623 "ID": new RegExp( "^#(" + identifier + ")" ),
624 "CLASS": new RegExp( "^\\.(" + identifier + ")" ),
625 "TAG": new RegExp( "^(" + identifier + "|[*])" ),
626 "ATTR": new RegExp( "^" + attributes ),
627 "PSEUDO": new RegExp( "^" + pseudos ),
628 "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
629 "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
630 "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
631 "bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
632 // For use in libraries implementing .is()
633 // We use this for POS matching in `select`
634 "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
635 whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
636 },
637
638 rhtml = /HTML$/i,
639 rinputs = /^(?:input|select|textarea|button)$/i,
640 rheader = /^h\d$/i,
641
642 rnative = /^[^{]+\{\s*\[native \w/,
643
644 // Easily-parseable/retrievable ID or TAG or CLASS selectors
645 rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
646
647 rsibling = /[+~]/,
648
649 // CSS escapes
650 // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
651 runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
652 funescape = function( _, escaped, escapedWhitespace ) {
653 var high = "0x" + escaped - 0x10000;
654 // NaN means non-codepoint
655 // Support: Firefox<24
656 // Workaround erroneous numeric interpretation of +"0x"
657 return high !== high || escapedWhitespace ?
658 escaped :
659 high < 0 ?
660 // BMP codepoint
661 String.fromCharCode( high + 0x10000 ) :
662 // Supplemental Plane codepoint (surrogate pair)
663 String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
664 },
665
666 // CSS string/identifier serialization
667 // https://drafts.csswg.org/cssom/#common-serializing-idioms
668 rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
669 fcssescape = function( ch, asCodePoint ) {
670 if ( asCodePoint ) {
671
672 // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
673 if ( ch === "\0" ) {
674 return "\uFFFD";
675 }
676
677 // Control characters and (dependent upon position) numbers get escaped as code points
678 return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
679 }
680
681 // Other potentially-special ASCII characters get backslash-escaped
682 return "\\" + ch;
683 },
684
685 // Used for iframes
686 // See setDocument()
687 // Removing the function wrapper causes a "Permission Denied"
688 // error in IE
689 unloadHandler = function() {
690 setDocument();
691 },
692
693 inDisabledFieldset = addCombinator(
694 function( elem ) {
695 return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset";
696 },
697 { dir: "parentNode", next: "legend" }
698 );
699
700 // Optimize for push.apply( _, NodeList )
701 try {
702 push.apply(
703 (arr = slice.call( preferredDoc.childNodes )),
704 preferredDoc.childNodes
705 );
706 // Support: Android<4.0
707 // Detect silently failing push.apply
708 arr[ preferredDoc.childNodes.length ].nodeType;
709 } catch ( e ) {
710 push = { apply: arr.length ?
711
712 // Leverage slice if possible
713 function( target, els ) {
714 push_native.apply( target, slice.call(els) );
715 } :
716
717 // Support: IE<9
718 // Otherwise append directly
719 function( target, els ) {
720 var j = target.length,
721 i = 0;
722 // Can't trust NodeList.length
723 while ( (target[j++] = els[i++]) ) {}
724 target.length = j - 1;
725 }
726 };
727 }
728
729 function Sizzle( selector, context, results, seed ) {
730 var m, i, elem, nid, match, groups, newSelector,
731 newContext = context && context.ownerDocument,
732
733 // nodeType defaults to 9, since context defaults to document
734 nodeType = context ? context.nodeType : 9;
735
736 results = results || [];
737
738 // Return early from calls with invalid selector or context
739 if ( typeof selector !== "string" || !selector ||
740 nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
741
742 return results;
743 }
744
745 // Try to shortcut find operations (as opposed to filters) in HTML documents
746 if ( !seed ) {
747
748 if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
749 setDocument( context );
750 }
751 context = context || document;
752
753 if ( documentIsHTML ) {
754
755 // If the selector is sufficiently simple, try using a "get*By*" DOM method
756 // (excepting DocumentFragment context, where the methods don't exist)
757 if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
758
759 // ID selector
760 if ( (m = match[1]) ) {
761
762 // Document context
763 if ( nodeType === 9 ) {
764 if ( (elem = context.getElementById( m )) ) {
765
766 // Support: IE, Opera, Webkit
767 // TODO: identify versions
768 // getElementById can match elements by name instead of ID
769 if ( elem.id === m ) {
770 results.push( elem );
771 return results;
772 }
773 } else {
774 return results;
775 }
776
777 // Element context
778 } else {
779
780 // Support: IE, Opera, Webkit
781 // TODO: identify versions
782 // getElementById can match elements by name instead of ID
783 if ( newContext && (elem = newContext.getElementById( m )) &&
784 contains( context, elem ) &&
785 elem.id === m ) {
786
787 results.push( elem );
788 return results;
789 }
790 }
791
792 // Type selector
793 } else if ( match[2] ) {
794 push.apply( results, context.getElementsByTagName( selector ) );
795 return results;
796
797 // Class selector
798 } else if ( (m = match[3]) && support.getElementsByClassName &&
799 context.getElementsByClassName ) {
800
801 push.apply( results, context.getElementsByClassName( m ) );
802 return results;
803 }
804 }
805
806 // Take advantage of querySelectorAll
807 if ( support.qsa &&
808 !nonnativeSelectorCache[ selector + " " ] &&
809 (!rbuggyQSA || !rbuggyQSA.test( selector )) &&
810
811 // Support: IE 8 only
812 // Exclude object elements
813 (nodeType !== 1 || context.nodeName.toLowerCase() !== "object") ) {
814
815 newSelector = selector;
816 newContext = context;
817
818 // qSA considers elements outside a scoping root when evaluating child or
819 // descendant combinators, which is not what we want.
820 // In such cases, we work around the behavior by prefixing every selector in the
821 // list with an ID selector referencing the scope context.
822 // Thanks to Andrew Dupont for this technique.
823 if ( nodeType === 1 && rdescend.test( selector ) ) {
824
825 // Capture the context ID, setting it first if necessary
826 if ( (nid = context.getAttribute( "id" )) ) {
827 nid = nid.replace( rcssescape, fcssescape );
828 } else {
829 context.setAttribute( "id", (nid = expando) );
830 }
831
832 // Prefix every selector in the list
833 groups = tokenize( selector );
834 i = groups.length;
835 while ( i-- ) {
836 groups[i] = "#" + nid + " " + toSelector( groups[i] );
837 }
838 newSelector = groups.join( "," );
839
840 // Expand context for sibling selectors
841 newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
842 context;
843 }
844
845 try {
846 push.apply( results,
847 newContext.querySelectorAll( newSelector )
848 );
849 return results;
850 } catch ( qsaError ) {
851 nonnativeSelectorCache( selector, true );
852 } finally {
853 if ( nid === expando ) {
854 context.removeAttribute( "id" );
855 }
856 }
857 }
858 }
859 }
860
861 // All others
862 return select( selector.replace( rtrim, "$1" ), context, results, seed );
863 }
864
865 /**
866 * Create key-value caches of limited size
867 * @returns {function(string, object)} Returns the Object data after storing it on itself with
868 * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
869 * deleting the oldest entry
870 */
871 function createCache() {
872 var keys = [];
873
874 function cache( key, value ) {
875 // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
876 if ( keys.push( key + " " ) > Expr.cacheLength ) {
877 // Only keep the most recent entries
878 delete cache[ keys.shift() ];
879 }
880 return (cache[ key + " " ] = value);
881 }
882 return cache;
883 }
884
885 /**
886 * Mark a function for special use by Sizzle
887 * @param {Function} fn The function to mark
888 */
889 function markFunction( fn ) {
890 fn[ expando ] = true;
891 return fn;
892 }
893
894 /**
895 * Support testing using an element
896 * @param {Function} fn Passed the created element and returns a boolean result
897 */
898 function assert( fn ) {
899 var el = document.createElement("fieldset");
900
901 try {
902 return !!fn( el );
903 } catch (e) {
904 return false;
905 } finally {
906 // Remove from its parent by default
907 if ( el.parentNode ) {
908 el.parentNode.removeChild( el );
909 }
910 // release memory in IE
911 el = null;
912 }
913 }
914
915 /**
916 * Adds the same handler for all of the specified attrs
917 * @param {String} attrs Pipe-separated list of attributes
918 * @param {Function} handler The method that will be applied
919 */
920 function addHandle( attrs, handler ) {
921 var arr = attrs.split("|"),
922 i = arr.length;
923
924 while ( i-- ) {
925 Expr.attrHandle[ arr[i] ] = handler;
926 }
927 }
928
929 /**
930 * Checks document order of two siblings
931 * @param {Element} a
932 * @param {Element} b
933 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
934 */
935 function siblingCheck( a, b ) {
936 var cur = b && a,
937 diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
938 a.sourceIndex - b.sourceIndex;
939
940 // Use IE sourceIndex if available on both nodes
941 if ( diff ) {
942 return diff;
943 }
944
945 // Check if b follows a
946 if ( cur ) {
947 while ( (cur = cur.nextSibling) ) {
948 if ( cur === b ) {
949 return -1;
950 }
951 }
952 }
953
954 return a ? 1 : -1;
955 }
956
957 /**
958 * Returns a function to use in pseudos for input types
959 * @param {String} type
960 */
961 function createInputPseudo( type ) {
962 return function( elem ) {
963 var name = elem.nodeName.toLowerCase();
964 return name === "input" && elem.type === type;
965 };
966 }
967
968 /**
969 * Returns a function to use in pseudos for buttons
970 * @param {String} type
971 */
972 function createButtonPseudo( type ) {
973 return function( elem ) {
974 var name = elem.nodeName.toLowerCase();
975 return (name === "input" || name === "button") && elem.type === type;
976 };
977 }
978
979 /**
980 * Returns a function to use in pseudos for :enabled/:disabled
981 * @param {Boolean} disabled true for :disabled; false for :enabled
982 */
983 function createDisabledPseudo( disabled ) {
984
985 // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
986 return function( elem ) {
987
988 // Only certain elements can match :enabled or :disabled
989 // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
990 // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
991 if ( "form" in elem ) {
992
993 // Check for inherited disabledness on relevant non-disabled elements:
994 // * listed form-associated elements in a disabled fieldset
995 // https://html.spec.whatwg.org/multipage/forms.html#category-listed
996 // https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
997 // * option elements in a disabled optgroup
998 // https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
999 // All such elements have a "form" property.
1000 if ( elem.parentNode && elem.disabled === false ) {
1001
1002 // Option elements defer to a parent optgroup if present
1003 if ( "label" in elem ) {
1004 if ( "label" in elem.parentNode ) {
1005 return elem.parentNode.disabled === disabled;
1006 } else {
1007 return elem.disabled === disabled;
1008 }
1009 }
1010
1011 // Support: IE 6 - 11
1012 // Use the isDisabled shortcut property to check for disabled fieldset ancestors
1013 return elem.isDisabled === disabled ||
1014
1015 // Where there is no isDisabled, check manually
1016 /* jshint -W018 */
1017 elem.isDisabled !== !disabled &&
1018 inDisabledFieldset( elem ) === disabled;
1019 }
1020
1021 return elem.disabled === disabled;
1022
1023 // Try to winnow out elements that can't be disabled before trusting the disabled property.
1024 // Some victims get caught in our net (label, legend, menu, track), but it shouldn't
1025 // even exist on them, let alone have a boolean value.
1026 } else if ( "label" in elem ) {
1027 return elem.disabled === disabled;
1028 }
1029
1030 // Remaining elements are neither :enabled nor :disabled
1031 return false;
1032 };
1033 }
1034
1035 /**
1036 * Returns a function to use in pseudos for positionals
1037 * @param {Function} fn
1038 */
1039 function createPositionalPseudo( fn ) {
1040 return markFunction(function( argument ) {
1041 argument = +argument;
1042 return markFunction(function( seed, matches ) {
1043 var j,
1044 matchIndexes = fn( [], seed.length, argument ),
1045 i = matchIndexes.length;
1046
1047 // Match elements found at the specified indexes
1048 while ( i-- ) {
1049 if ( seed[ (j = matchIndexes[i]) ] ) {
1050 seed[j] = !(matches[j] = seed[j]);
1051 }
1052 }
1053 });
1054 });
1055 }
1056
1057 /**
1058 * Checks a node for validity as a Sizzle context
1059 * @param {Element|Object=} context
1060 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
1061 */
1062 function testContext( context ) {
1063 return context && typeof context.getElementsByTagName !== "undefined" && context;
1064 }
1065
1066 // Expose support vars for convenience
1067 support = Sizzle.support = {};
1068
1069 /**
1070 * Detects XML nodes
1071 * @param {Element|Object} elem An element or a document
1072 * @returns {Boolean} True iff elem is a non-HTML XML node
1073 */
1074 isXML = Sizzle.isXML = function( elem ) {
1075 var namespace = elem.namespaceURI,
1076 docElem = (elem.ownerDocument || elem).documentElement;
1077
1078 // Support: IE <=8
1079 // Assume HTML when documentElement doesn't yet exist, such as inside loading iframes
1080 // https://bugs.jquery.com/ticket/4833
1081 return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" );
1082 };
1083
1084 /**
1085 * Sets document-related variables once based on the current document
1086 * @param {Element|Object} [doc] An element or document object to use to set the document
1087 * @returns {Object} Returns the current document
1088 */
1089 setDocument = Sizzle.setDocument = function( node ) {
1090 var hasCompare, subWindow,
1091 doc = node ? node.ownerDocument || node : preferredDoc;
1092
1093 // Return early if doc is invalid or already selected
1094 if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
1095 return document;
1096 }
1097
1098 // Update global variables
1099 document = doc;
1100 docElem = document.documentElement;
1101 documentIsHTML = !isXML( document );
1102
1103 // Support: IE 9-11, Edge
1104 // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
1105 if ( preferredDoc !== document &&
1106 (subWindow = document.defaultView) && subWindow.top !== subWindow ) {
1107
1108 // Support: IE 11, Edge
1109 if ( subWindow.addEventListener ) {
1110 subWindow.addEventListener( "unload", unloadHandler, false );
1111
1112 // Support: IE 9 - 10 only
1113 } else if ( subWindow.attachEvent ) {
1114 subWindow.attachEvent( "onunload", unloadHandler );
1115 }
1116 }
1117
1118 /* Attributes
1119 ---------------------------------------------------------------------- */
1120
1121 // Support: IE<8
1122 // Verify that getAttribute really returns attributes and not properties
1123 // (excepting IE8 booleans)
1124 support.attributes = assert(function( el ) {
1125 el.className = "i";
1126 return !el.getAttribute("className");
1127 });
1128
1129 /* getElement(s)By*
1130 ---------------------------------------------------------------------- */
1131
1132 // Check if getElementsByTagName("*") returns only elements
1133 support.getElementsByTagName = assert(function( el ) {
1134 el.appendChild( document.createComment("") );
1135 return !el.getElementsByTagName("*").length;
1136 });
1137
1138 // Support: IE<9
1139 support.getElementsByClassName = rnative.test( document.getElementsByClassName );
1140
1141 // Support: IE<10
1142 // Check if getElementById returns elements by name
1143 // The broken getElementById methods don't pick up programmatically-set names,
1144 // so use a roundabout getElementsByName test
1145 support.getById = assert(function( el ) {
1146 docElem.appendChild( el ).id = expando;
1147 return !document.getElementsByName || !document.getElementsByName( expando ).length;
1148 });
1149
1150 // ID filter and find
1151 if ( support.getById ) {
1152 Expr.filter["ID"] = function( id ) {
1153 var attrId = id.replace( runescape, funescape );
1154 return function( elem ) {
1155 return elem.getAttribute("id") === attrId;
1156 };
1157 };
1158 Expr.find["ID"] = function( id, context ) {
1159 if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
1160 var elem = context.getElementById( id );
1161 return elem ? [ elem ] : [];
1162 }
1163 };
1164 } else {
1165 Expr.filter["ID"] = function( id ) {
1166 var attrId = id.replace( runescape, funescape );
1167 return function( elem ) {
1168 var node = typeof elem.getAttributeNode !== "undefined" &&
1169 elem.getAttributeNode("id");
1170 return node && node.value === attrId;
1171 };
1172 };
1173
1174 // Support: IE 6 - 7 only
1175 // getElementById is not reliable as a find shortcut
1176 Expr.find["ID"] = function( id, context ) {
1177 if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
1178 var node, i, elems,
1179 elem = context.getElementById( id );
1180
1181 if ( elem ) {
1182
1183 // Verify the id attribute
1184 node = elem.getAttributeNode("id");
1185 if ( node && node.value === id ) {
1186 return [ elem ];
1187 }
1188
1189 // Fall back on getElementsByName
1190 elems = context.getElementsByName( id );
1191 i = 0;
1192 while ( (elem = elems[i++]) ) {
1193 node = elem.getAttributeNode("id");
1194 if ( node && node.value === id ) {
1195 return [ elem ];
1196 }
1197 }
1198 }
1199
1200 return [];
1201 }
1202 };
1203 }
1204
1205 // Tag
1206 Expr.find["TAG"] = support.getElementsByTagName ?
1207 function( tag, context ) {
1208 if ( typeof context.getElementsByTagName !== "undefined" ) {
1209 return context.getElementsByTagName( tag );
1210
1211 // DocumentFragment nodes don't have gEBTN
1212 } else if ( support.qsa ) {
1213 return context.querySelectorAll( tag );
1214 }
1215 } :
1216
1217 function( tag, context ) {
1218 var elem,
1219 tmp = [],
1220 i = 0,
1221 // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
1222 results = context.getElementsByTagName( tag );
1223
1224 // Filter out possible comments
1225 if ( tag === "*" ) {
1226 while ( (elem = results[i++]) ) {
1227 if ( elem.nodeType === 1 ) {
1228 tmp.push( elem );
1229 }
1230 }
1231
1232 return tmp;
1233 }
1234 return results;
1235 };
1236
1237 // Class
1238 Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
1239 if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
1240 return context.getElementsByClassName( className );
1241 }
1242 };
1243
1244 /* QSA/matchesSelector
1245 ---------------------------------------------------------------------- */
1246
1247 // QSA and matchesSelector support
1248
1249 // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
1250 rbuggyMatches = [];
1251
1252 // qSa(:focus) reports false when true (Chrome 21)
1253 // We allow this because of a bug in IE8/9 that throws an error
1254 // whenever `document.activeElement` is accessed on an iframe
1255 // So, we allow :focus to pass through QSA all the time to avoid the IE error
1256 // See https://bugs.jquery.com/ticket/13378
1257 rbuggyQSA = [];
1258
1259 if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
1260 // Build QSA regex
1261 // Regex strategy adopted from Diego Perini
1262 assert(function( el ) {
1263 // Select is set to empty string on purpose
1264 // This is to test IE's treatment of not explicitly
1265 // setting a boolean content attribute,
1266 // since its presence should be enough
1267 // https://bugs.jquery.com/ticket/12359
1268 docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
1269 "<select id='" + expando + "-\r\\' msallowcapture=''>" +
1270 "<option selected=''></option></select>";
1271
1272 // Support: IE8, Opera 11-12.16
1273 // Nothing should be selected when empty strings follow ^= or $= or *=
1274 // The test attribute must be unknown in Opera but "safe" for WinRT
1275 // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
1276 if ( el.querySelectorAll("[msallowcapture^='']").length ) {
1277 rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
1278 }
1279
1280 // Support: IE8
1281 // Boolean attributes and "value" are not treated correctly
1282 if ( !el.querySelectorAll("[selected]").length ) {
1283 rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
1284 }
1285
1286 // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
1287 if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
1288 rbuggyQSA.push("~=");
1289 }
1290
1291 // Webkit/Opera - :checked should return selected option elements
1292 // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
1293 // IE8 throws error here and will not see later tests
1294 if ( !el.querySelectorAll(":checked").length ) {
1295 rbuggyQSA.push(":checked");
1296 }
1297
1298 // Support: Safari 8+, iOS 8+
1299 // https://bugs.webkit.org/show_bug.cgi?id=136851
1300 // In-page `selector#id sibling-combinator selector` fails
1301 if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
1302 rbuggyQSA.push(".#.+[+~]");
1303 }
1304 });
1305
1306 assert(function( el ) {
1307 el.innerHTML = "<a href='' disabled='disabled'></a>" +
1308 "<select disabled='disabled'><option/></select>";
1309
1310 // Support: Windows 8 Native Apps
1311 // The type and name attributes are restricted during .innerHTML assignment
1312 var input = document.createElement("input");
1313 input.setAttribute( "type", "hidden" );
1314 el.appendChild( input ).setAttribute( "name", "D" );
1315
1316 // Support: IE8
1317 // Enforce case-sensitivity of name attribute
1318 if ( el.querySelectorAll("[name=d]").length ) {
1319 rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
1320 }
1321
1322 // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
1323 // IE8 throws error here and will not see later tests
1324 if ( el.querySelectorAll(":enabled").length !== 2 ) {
1325 rbuggyQSA.push( ":enabled", ":disabled" );
1326 }
1327
1328 // Support: IE9-11+
1329 // IE's :disabled selector does not pick up the children of disabled fieldsets
1330 docElem.appendChild( el ).disabled = true;
1331 if ( el.querySelectorAll(":disabled").length !== 2 ) {
1332 rbuggyQSA.push( ":enabled", ":disabled" );
1333 }
1334
1335 // Opera 10-11 does not throw on post-comma invalid pseudos
1336 el.querySelectorAll("*,:x");
1337 rbuggyQSA.push(",.*:");
1338 });
1339 }
1340
1341 if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
1342 docElem.webkitMatchesSelector ||
1343 docElem.mozMatchesSelector ||
1344 docElem.oMatchesSelector ||
1345 docElem.msMatchesSelector) )) ) {
1346
1347 assert(function( el ) {
1348 // Check to see if it's possible to do matchesSelector
1349 // on a disconnected node (IE 9)
1350 support.disconnectedMatch = matches.call( el, "*" );
1351
1352 // This should fail with an exception
1353 // Gecko does not error, returns false instead
1354 matches.call( el, "[s!='']:x" );
1355 rbuggyMatches.push( "!=", pseudos );
1356 });
1357 }
1358
1359 rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
1360 rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
1361
1362 /* Contains
1363 ---------------------------------------------------------------------- */
1364 hasCompare = rnative.test( docElem.compareDocumentPosition );
1365
1366 // Element contains another
1367 // Purposefully self-exclusive
1368 // As in, an element does not contain itself
1369 contains = hasCompare || rnative.test( docElem.contains ) ?
1370 function( a, b ) {
1371 var adown = a.nodeType === 9 ? a.documentElement : a,
1372 bup = b && b.parentNode;
1373 return a === bup || !!( bup && bup.nodeType === 1 && (
1374 adown.contains ?
1375 adown.contains( bup ) :
1376 a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
1377 ));
1378 } :
1379 function( a, b ) {
1380 if ( b ) {
1381 while ( (b = b.parentNode) ) {
1382 if ( b === a ) {
1383 return true;
1384 }
1385 }
1386 }
1387 return false;
1388 };
1389
1390 /* Sorting
1391 ---------------------------------------------------------------------- */
1392
1393 // Document order sorting
1394 sortOrder = hasCompare ?
1395 function( a, b ) {
1396
1397 // Flag for duplicate removal
1398 if ( a === b ) {
1399 hasDuplicate = true;
1400 return 0;
1401 }
1402
1403 // Sort on method existence if only one input has compareDocumentPosition
1404 var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
1405 if ( compare ) {
1406 return compare;
1407 }
1408
1409 // Calculate position if both inputs belong to the same document
1410 compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
1411 a.compareDocumentPosition( b ) :
1412
1413 // Otherwise we know they are disconnected
1414 1;
1415
1416 // Disconnected nodes
1417 if ( compare & 1 ||
1418 (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
1419
1420 // Choose the first element that is related to our preferred document
1421 if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
1422 return -1;
1423 }
1424 if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
1425 return 1;
1426 }
1427
1428 // Maintain original order
1429 return sortInput ?
1430 ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
1431 0;
1432 }
1433
1434 return compare & 4 ? -1 : 1;
1435 } :
1436 function( a, b ) {
1437 // Exit early if the nodes are identical
1438 if ( a === b ) {
1439 hasDuplicate = true;
1440 return 0;
1441 }
1442
1443 var cur,
1444 i = 0,
1445 aup = a.parentNode,
1446 bup = b.parentNode,
1447 ap = [ a ],
1448 bp = [ b ];
1449
1450 // Parentless nodes are either documents or disconnected
1451 if ( !aup || !bup ) {
1452 return a === document ? -1 :
1453 b === document ? 1 :
1454 aup ? -1 :
1455 bup ? 1 :
1456 sortInput ?
1457 ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
1458 0;
1459
1460 // If the nodes are siblings, we can do a quick check
1461 } else if ( aup === bup ) {
1462 return siblingCheck( a, b );
1463 }
1464
1465 // Otherwise we need full lists of their ancestors for comparison
1466 cur = a;
1467 while ( (cur = cur.parentNode) ) {
1468 ap.unshift( cur );
1469 }
1470 cur = b;
1471 while ( (cur = cur.parentNode) ) {
1472 bp.unshift( cur );
1473 }
1474
1475 // Walk down the tree looking for a discrepancy
1476 while ( ap[i] === bp[i] ) {
1477 i++;
1478 }
1479
1480 return i ?
1481 // Do a sibling check if the nodes have a common ancestor
1482 siblingCheck( ap[i], bp[i] ) :
1483
1484 // Otherwise nodes in our document sort first
1485 ap[i] === preferredDoc ? -1 :
1486 bp[i] === preferredDoc ? 1 :
1487 0;
1488 };
1489
1490 return document;
1491 };
1492
1493 Sizzle.matches = function( expr, elements ) {
1494 return Sizzle( expr, null, null, elements );
1495 };
1496
1497 Sizzle.matchesSelector = function( elem, expr ) {
1498 // Set document vars if needed
1499 if ( ( elem.ownerDocument || elem ) !== document ) {
1500 setDocument( elem );
1501 }
1502
1503 if ( support.matchesSelector && documentIsHTML &&
1504 !nonnativeSelectorCache[ expr + " " ] &&
1505 ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
1506 ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {
1507
1508 try {
1509 var ret = matches.call( elem, expr );
1510
1511 // IE 9's matchesSelector returns false on disconnected nodes
1512 if ( ret || support.disconnectedMatch ||
1513 // As well, disconnected nodes are said to be in a document
1514 // fragment in IE 9
1515 elem.document && elem.document.nodeType !== 11 ) {
1516 return ret;
1517 }
1518 } catch (e) {
1519 nonnativeSelectorCache( expr, true );
1520 }
1521 }
1522
1523 return Sizzle( expr, document, null, [ elem ] ).length > 0;
1524 };
1525
1526 Sizzle.contains = function( context, elem ) {
1527 // Set document vars if needed
1528 if ( ( context.ownerDocument || context ) !== document ) {
1529 setDocument( context );
1530 }
1531 return contains( context, elem );
1532 };
1533
1534 Sizzle.attr = function( elem, name ) {
1535 // Set document vars if needed
1536 if ( ( elem.ownerDocument || elem ) !== document ) {
1537 setDocument( elem );
1538 }
1539
1540 var fn = Expr.attrHandle[ name.toLowerCase() ],
1541 // Don't get fooled by Object.prototype properties (jQuery #13807)
1542 val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
1543 fn( elem, name, !documentIsHTML ) :
1544 undefined;
1545
1546 return val !== undefined ?
1547 val :
1548 support.attributes || !documentIsHTML ?
1549 elem.getAttribute( name ) :
1550 (val = elem.getAttributeNode(name)) && val.specified ?
1551 val.value :
1552 null;
1553 };
1554
1555 Sizzle.escape = function( sel ) {
1556 return (sel + "").replace( rcssescape, fcssescape );
1557 };
1558
1559 Sizzle.error = function( msg ) {
1560 throw new Error( "Syntax error, unrecognized expression: " + msg );
1561 };
1562
1563 /**
1564 * Document sorting and removing duplicates
1565 * @param {ArrayLike} results
1566 */
1567 Sizzle.uniqueSort = function( results ) {
1568 var elem,
1569 duplicates = [],
1570 j = 0,
1571 i = 0;
1572
1573 // Unless we *know* we can detect duplicates, assume their presence
1574 hasDuplicate = !support.detectDuplicates;
1575 sortInput = !support.sortStable && results.slice( 0 );
1576 results.sort( sortOrder );
1577
1578 if ( hasDuplicate ) {
1579 while ( (elem = results[i++]) ) {
1580 if ( elem === results[ i ] ) {
1581 j = duplicates.push( i );
1582 }
1583 }
1584 while ( j-- ) {
1585 results.splice( duplicates[ j ], 1 );
1586 }
1587 }
1588
1589 // Clear input after sorting to release objects
1590 // See https://github.com/jquery/sizzle/pull/225
1591 sortInput = null;
1592
1593 return results;
1594 };
1595
1596 /**
1597 * Utility function for retrieving the text value of an array of DOM nodes
1598 * @param {Array|Element} elem
1599 */
1600 getText = Sizzle.getText = function( elem ) {
1601 var node,
1602 ret = "",
1603 i = 0,
1604 nodeType = elem.nodeType;
1605
1606 if ( !nodeType ) {
1607 // If no nodeType, this is expected to be an array
1608 while ( (node = elem[i++]) ) {
1609 // Do not traverse comment nodes
1610 ret += getText( node );
1611 }
1612 } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
1613 // Use textContent for elements
1614 // innerText usage removed for consistency of new lines (jQuery #11153)
1615 if ( typeof elem.textContent === "string" ) {
1616 return elem.textContent;
1617 } else {
1618 // Traverse its children
1619 for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
1620 ret += getText( elem );
1621 }
1622 }
1623 } else if ( nodeType === 3 || nodeType === 4 ) {
1624 return elem.nodeValue;
1625 }
1626 // Do not include comment or processing instruction nodes
1627
1628 return ret;
1629 };
1630
1631 Expr = Sizzle.selectors = {
1632
1633 // Can be adjusted by the user
1634 cacheLength: 50,
1635
1636 createPseudo: markFunction,
1637
1638 match: matchExpr,
1639
1640 attrHandle: {},
1641
1642 find: {},
1643
1644 relative: {
1645 ">": { dir: "parentNode", first: true },
1646 " ": { dir: "parentNode" },
1647 "+": { dir: "previousSibling", first: true },
1648 "~": { dir: "previousSibling" }
1649 },
1650
1651 preFilter: {
1652 "ATTR": function( match ) {
1653 match[1] = match[1].replace( runescape, funescape );
1654
1655 // Move the given value to match[3] whether quoted or unquoted
1656 match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
1657
1658 if ( match[2] === "~=" ) {
1659 match[3] = " " + match[3] + " ";
1660 }
1661
1662 return match.slice( 0, 4 );
1663 },
1664
1665 "CHILD": function( match ) {
1666 /* matches from matchExpr["CHILD"]
1667 1 type (only|nth|...)
1668 2 what (child|of-type)
1669 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
1670 4 xn-component of xn+y argument ([+-]?\d*n|)
1671 5 sign of xn-component
1672 6 x of xn-component
1673 7 sign of y-component
1674 8 y of y-component
1675 */
1676 match[1] = match[1].toLowerCase();
1677
1678 if ( match[1].slice( 0, 3 ) === "nth" ) {
1679 // nth-* requires argument
1680 if ( !match[3] ) {
1681 Sizzle.error( match[0] );
1682 }
1683
1684 // numeric x and y parameters for Expr.filter.CHILD
1685 // remember that false/true cast respectively to 0/1
1686 match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
1687 match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
1688
1689 // other types prohibit arguments
1690 } else if ( match[3] ) {
1691 Sizzle.error( match[0] );
1692 }
1693
1694 return match;
1695 },
1696
1697 "PSEUDO": function( match ) {
1698 var excess,
1699 unquoted = !match[6] && match[2];
1700
1701 if ( matchExpr["CHILD"].test( match[0] ) ) {
1702 return null;
1703 }
1704
1705 // Accept quoted arguments as-is
1706 if ( match[3] ) {
1707 match[2] = match[4] || match[5] || "";
1708
1709 // Strip excess characters from unquoted arguments
1710 } else if ( unquoted && rpseudo.test( unquoted ) &&
1711 // Get excess from tokenize (recursively)
1712 (excess = tokenize( unquoted, true )) &&
1713 // advance to the next closing parenthesis
1714 (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
1715
1716 // excess is a negative index
1717 match[0] = match[0].slice( 0, excess );
1718 match[2] = unquoted.slice( 0, excess );
1719 }
1720
1721 // Return only captures needed by the pseudo filter method (type and argument)
1722 return match.slice( 0, 3 );
1723 }
1724 },
1725
1726 filter: {
1727
1728 "TAG": function( nodeNameSelector ) {
1729 var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
1730 return nodeNameSelector === "*" ?
1731 function() { return true; } :
1732 function( elem ) {
1733 return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
1734 };
1735 },
1736
1737 "CLASS": function( className ) {
1738 var pattern = classCache[ className + " " ];
1739
1740 return pattern ||
1741 (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
1742 classCache( className, function( elem ) {
1743 return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
1744 });
1745 },
1746
1747 "ATTR": function( name, operator, check ) {
1748 return function( elem ) {
1749 var result = Sizzle.attr( elem, name );
1750
1751 if ( result == null ) {
1752 return operator === "!=";
1753 }
1754 if ( !operator ) {
1755 return true;
1756 }
1757
1758 result += "";
1759
1760 return operator === "=" ? result === check :
1761 operator === "!=" ? result !== check :
1762 operator === "^=" ? check && result.indexOf( check ) === 0 :
1763 operator === "*=" ? check && result.indexOf( check ) > -1 :
1764 operator === "$=" ? check && result.slice( -check.length ) === check :
1765 operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
1766 operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
1767 false;
1768 };
1769 },
1770
1771 "CHILD": function( type, what, argument, first, last ) {
1772 var simple = type.slice( 0, 3 ) !== "nth",
1773 forward = type.slice( -4 ) !== "last",
1774 ofType = what === "of-type";
1775
1776 return first === 1 && last === 0 ?
1777
1778 // Shortcut for :nth-*(n)
1779 function( elem ) {
1780 return !!elem.parentNode;
1781 } :
1782
1783 function( elem, context, xml ) {
1784 var cache, uniqueCache, outerCache, node, nodeIndex, start,
1785 dir = simple !== forward ? "nextSibling" : "previousSibling",
1786 parent = elem.parentNode,
1787 name = ofType && elem.nodeName.toLowerCase(),
1788 useCache = !xml && !ofType,
1789 diff = false;
1790
1791 if ( parent ) {
1792
1793 // :(first|last|only)-(child|of-type)
1794 if ( simple ) {
1795 while ( dir ) {
1796 node = elem;
1797 while ( (node = node[ dir ]) ) {
1798 if ( ofType ?
1799 node.nodeName.toLowerCase() === name :
1800 node.nodeType === 1 ) {
1801
1802 return false;
1803 }
1804 }
1805 // Reverse direction for :only-* (if we haven't yet done so)
1806 start = dir = type === "only" && !start && "nextSibling";
1807 }
1808 return true;
1809 }
1810
1811 start = [ forward ? parent.firstChild : parent.lastChild ];
1812
1813 // non-xml :nth-child(...) stores cache data on `parent`
1814 if ( forward && useCache ) {
1815
1816 // Seek `elem` from a previously-cached index
1817
1818 // ...in a gzip-friendly way
1819 node = parent;
1820 outerCache = node[ expando ] || (node[ expando ] = {});
1821
1822 // Support: IE <9 only
1823 // Defend against cloned attroperties (jQuery gh-1709)
1824 uniqueCache = outerCache[ node.uniqueID ] ||
1825 (outerCache[ node.uniqueID ] = {});
1826
1827 cache = uniqueCache[ type ] || [];
1828 nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
1829 diff = nodeIndex && cache[ 2 ];
1830 node = nodeIndex && parent.childNodes[ nodeIndex ];
1831
1832 while ( (node = ++nodeIndex && node && node[ dir ] ||
1833
1834 // Fallback to seeking `elem` from the start
1835 (diff = nodeIndex = 0) || start.pop()) ) {
1836
1837 // When found, cache indexes on `parent` and break
1838 if ( node.nodeType === 1 && ++diff && node === elem ) {
1839 uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
1840 break;
1841 }
1842 }
1843
1844 } else {
1845 // Use previously-cached element index if available
1846 if ( useCache ) {
1847 // ...in a gzip-friendly way
1848 node = elem;
1849 outerCache = node[ expando ] || (node[ expando ] = {});
1850
1851 // Support: IE <9 only
1852 // Defend against cloned attroperties (jQuery gh-1709)
1853 uniqueCache = outerCache[ node.uniqueID ] ||
1854 (outerCache[ node.uniqueID ] = {});
1855
1856 cache = uniqueCache[ type ] || [];
1857 nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
1858 diff = nodeIndex;
1859 }
1860
1861 // xml :nth-child(...)
1862 // or :nth-last-child(...) or :nth(-last)?-of-type(...)
1863 if ( diff === false ) {
1864 // Use the same loop as above to seek `elem` from the start
1865 while ( (node = ++nodeIndex && node && node[ dir ] ||
1866 (diff = nodeIndex = 0) || start.pop()) ) {
1867
1868 if ( ( ofType ?
1869 node.nodeName.toLowerCase() === name :
1870 node.nodeType === 1 ) &&
1871 ++diff ) {
1872
1873 // Cache the index of each encountered element
1874 if ( useCache ) {
1875 outerCache = node[ expando ] || (node[ expando ] = {});
1876
1877 // Support: IE <9 only
1878 // Defend against cloned attroperties (jQuery gh-1709)
1879 uniqueCache = outerCache[ node.uniqueID ] ||
1880 (outerCache[ node.uniqueID ] = {});
1881
1882 uniqueCache[ type ] = [ dirruns, diff ];
1883 }
1884
1885 if ( node === elem ) {
1886 break;
1887 }
1888 }
1889 }
1890 }
1891 }
1892
1893 // Incorporate the offset, then check against cycle size
1894 diff -= last;
1895 return diff === first || ( diff % first === 0 && diff / first >= 0 );
1896 }
1897 };
1898 },
1899
1900 "PSEUDO": function( pseudo, argument ) {
1901 // pseudo-class names are case-insensitive
1902 // http://www.w3.org/TR/selectors/#pseudo-classes
1903 // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
1904 // Remember that setFilters inherits from pseudos
1905 var args,
1906 fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
1907 Sizzle.error( "unsupported pseudo: " + pseudo );
1908
1909 // The user may use createPseudo to indicate that
1910 // arguments are needed to create the filter function
1911 // just as Sizzle does
1912 if ( fn[ expando ] ) {
1913 return fn( argument );
1914 }
1915
1916 // But maintain support for old signatures
1917 if ( fn.length > 1 ) {
1918 args = [ pseudo, pseudo, "", argument ];
1919 return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
1920 markFunction(function( seed, matches ) {
1921 var idx,
1922 matched = fn( seed, argument ),
1923 i = matched.length;
1924 while ( i-- ) {
1925 idx = indexOf( seed, matched[i] );
1926 seed[ idx ] = !( matches[ idx ] = matched[i] );
1927 }
1928 }) :
1929 function( elem ) {
1930 return fn( elem, 0, args );
1931 };
1932 }
1933
1934 return fn;
1935 }
1936 },
1937
1938 pseudos: {
1939 // Potentially complex pseudos
1940 "not": markFunction(function( selector ) {
1941 // Trim the selector passed to compile
1942 // to avoid treating leading and trailing
1943 // spaces as combinators
1944 var input = [],
1945 results = [],
1946 matcher = compile( selector.replace( rtrim, "$1" ) );
1947
1948 return matcher[ expando ] ?
1949 markFunction(function( seed, matches, context, xml ) {
1950 var elem,
1951 unmatched = matcher( seed, null, xml, [] ),
1952 i = seed.length;
1953
1954 // Match elements unmatched by `matcher`
1955 while ( i-- ) {
1956 if ( (elem = unmatched[i]) ) {
1957 seed[i] = !(matches[i] = elem);
1958 }
1959 }
1960 }) :
1961 function( elem, context, xml ) {
1962 input[0] = elem;
1963 matcher( input, null, xml, results );
1964 // Don't keep the element (issue #299)
1965 input[0] = null;
1966 return !results.pop();
1967 };
1968 }),
1969
1970 "has": markFunction(function( selector ) {
1971 return function( elem ) {
1972 return Sizzle( selector, elem ).length > 0;
1973 };
1974 }),
1975
1976 "contains": markFunction(function( text ) {
1977 text = text.replace( runescape, funescape );
1978 return function( elem ) {
1979 return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1;
1980 };
1981 }),
1982
1983 // "Whether an element is represented by a :lang() selector
1984 // is based solely on the element's language value
1985 // being equal to the identifier C,
1986 // or beginning with the identifier C immediately followed by "-".
1987 // The matching of C against the element's language value is performed case-insensitively.
1988 // The identifier C does not have to be a valid language name."
1989 // http://www.w3.org/TR/selectors/#lang-pseudo
1990 "lang": markFunction( function( lang ) {
1991 // lang value must be a valid identifier
1992 if ( !ridentifier.test(lang || "") ) {
1993 Sizzle.error( "unsupported lang: " + lang );
1994 }
1995 lang = lang.replace( runescape, funescape ).toLowerCase();
1996 return function( elem ) {
1997 var elemLang;
1998 do {
1999 if ( (elemLang = documentIsHTML ?
2000 elem.lang :
2001 elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
2002
2003 elemLang = elemLang.toLowerCase();
2004 return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
2005 }
2006 } while ( (elem = elem.parentNode) && elem.nodeType === 1 );
2007 return false;
2008 };
2009 }),
2010
2011 // Miscellaneous
2012 "target": function( elem ) {
2013 var hash = window.location && window.location.hash;
2014 return hash && hash.slice( 1 ) === elem.id;
2015 },
2016
2017 "root": function( elem ) {
2018 return elem === docElem;
2019 },
2020
2021 "focus": function( elem ) {
2022 return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
2023 },
2024
2025 // Boolean properties
2026 "enabled": createDisabledPseudo( false ),
2027 "disabled": createDisabledPseudo( true ),
2028
2029 "checked": function( elem ) {
2030 // In CSS3, :checked should return both checked and selected elements
2031 // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
2032 var nodeName = elem.nodeName.toLowerCase();
2033 return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
2034 },
2035
2036 "selected": function( elem ) {
2037 // Accessing this property makes selected-by-default
2038 // options in Safari work properly
2039 if ( elem.parentNode ) {
2040 elem.parentNode.selectedIndex;
2041 }
2042
2043 return elem.selected === true;
2044 },
2045
2046 // Contents
2047 "empty": function( elem ) {
2048 // http://www.w3.org/TR/selectors/#empty-pseudo
2049 // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
2050 // but not by others (comment: 8; processing instruction: 7; etc.)
2051 // nodeType < 6 works because attributes (2) do not appear as children
2052 for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
2053 if ( elem.nodeType < 6 ) {
2054 return false;
2055 }
2056 }
2057 return true;
2058 },
2059
2060 "parent": function( elem ) {
2061 return !Expr.pseudos["empty"]( elem );
2062 },
2063
2064 // Element/input types
2065 "header": function( elem ) {
2066 return rheader.test( elem.nodeName );
2067 },
2068
2069 "input": function( elem ) {
2070 return rinputs.test( elem.nodeName );
2071 },
2072
2073 "button": function( elem ) {
2074 var name = elem.nodeName.toLowerCase();
2075 return name === "input" && elem.type === "button" || name === "button";
2076 },
2077
2078 "text": function( elem ) {
2079 var attr;
2080 return elem.nodeName.toLowerCase() === "input" &&
2081 elem.type === "text" &&
2082
2083 // Support: IE<8
2084 // New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
2085 ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
2086 },
2087
2088 // Position-in-collection
2089 "first": createPositionalPseudo(function() {
2090 return [ 0 ];
2091 }),
2092
2093 "last": createPositionalPseudo(function( matchIndexes, length ) {
2094 return [ length - 1 ];
2095 }),
2096
2097 "eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
2098 return [ argument < 0 ? argument + length : argument ];
2099 }),
2100
2101 "even": createPositionalPseudo(function( matchIndexes, length ) {
2102 var i = 0;
2103 for ( ; i < length; i += 2 ) {
2104 matchIndexes.push( i );
2105 }
2106 return matchIndexes;
2107 }),
2108
2109 "odd": createPositionalPseudo(function( matchIndexes, length ) {
2110 var i = 1;
2111 for ( ; i < length; i += 2 ) {
2112 matchIndexes.push( i );
2113 }
2114 return matchIndexes;
2115 }),
2116
2117 "lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
2118 var i = argument < 0 ?
2119 argument + length :
2120 argument > length ?
2121 length :
2122 argument;
2123 for ( ; --i >= 0; ) {
2124 matchIndexes.push( i );
2125 }
2126 return matchIndexes;
2127 }),
2128
2129 "gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
2130 var i = argument < 0 ? argument + length : argument;
2131 for ( ; ++i < length; ) {
2132 matchIndexes.push( i );
2133 }
2134 return matchIndexes;
2135 })
2136 }
2137 };
2138
2139 Expr.pseudos["nth"] = Expr.pseudos["eq"];
2140
2141 // Add button/input type pseudos
2142 for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
2143 Expr.pseudos[ i ] = createInputPseudo( i );
2144 }
2145 for ( i in { submit: true, reset: true } ) {
2146 Expr.pseudos[ i ] = createButtonPseudo( i );
2147 }
2148
2149 // Easy API for creating new setFilters
2150 function setFilters() {}
2151 setFilters.prototype = Expr.filters = Expr.pseudos;
2152 Expr.setFilters = new setFilters();
2153
2154 tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
2155 var matched, match, tokens, type,
2156 soFar, groups, preFilters,
2157 cached = tokenCache[ selector + " " ];
2158
2159 if ( cached ) {
2160 return parseOnly ? 0 : cached.slice( 0 );
2161 }
2162
2163 soFar = selector;
2164 groups = [];
2165 preFilters = Expr.preFilter;
2166
2167 while ( soFar ) {
2168
2169 // Comma and first run
2170 if ( !matched || (match = rcomma.exec( soFar )) ) {
2171 if ( match ) {
2172 // Don't consume trailing commas as valid
2173 soFar = soFar.slice( match[0].length ) || soFar;
2174 }
2175 groups.push( (tokens = []) );
2176 }
2177
2178 matched = false;
2179
2180 // Combinators
2181 if ( (match = rcombinators.exec( soFar )) ) {
2182 matched = match.shift();
2183 tokens.push({
2184 value: matched,
2185 // Cast descendant combinators to space
2186 type: match[0].replace( rtrim, " " )
2187 });
2188 soFar = soFar.slice( matched.length );
2189 }
2190
2191 // Filters
2192 for ( type in Expr.filter ) {
2193 if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
2194 (match = preFilters[ type ]( match ))) ) {
2195 matched = match.shift();
2196 tokens.push({
2197 value: matched,
2198 type: type,
2199 matches: match
2200 });
2201 soFar = soFar.slice( matched.length );
2202 }
2203 }
2204
2205 if ( !matched ) {
2206 break;
2207 }
2208 }
2209
2210 // Return the length of the invalid excess
2211 // if we're just parsing
2212 // Otherwise, throw an error or return tokens
2213 return parseOnly ?
2214 soFar.length :
2215 soFar ?
2216 Sizzle.error( selector ) :
2217 // Cache the tokens
2218 tokenCache( selector, groups ).slice( 0 );
2219 };
2220
2221 function toSelector( tokens ) {
2222 var i = 0,
2223 len = tokens.length,
2224 selector = "";
2225 for ( ; i < len; i++ ) {
2226 selector += tokens[i].value;
2227 }
2228 return selector;
2229 }
2230
2231 function addCombinator( matcher, combinator, base ) {
2232 var dir = combinator.dir,
2233 skip = combinator.next,
2234 key = skip || dir,
2235 checkNonElements = base && key === "parentNode",
2236 doneName = done++;
2237
2238 return combinator.first ?
2239 // Check against closest ancestor/preceding element
2240 function( elem, context, xml ) {
2241 while ( (elem = elem[ dir ]) ) {
2242 if ( elem.nodeType === 1 || checkNonElements ) {
2243 return matcher( elem, context, xml );
2244 }
2245 }
2246 return false;
2247 } :
2248
2249 // Check against all ancestor/preceding elements
2250 function( elem, context, xml ) {
2251 var oldCache, uniqueCache, outerCache,
2252 newCache = [ dirruns, doneName ];
2253
2254 // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
2255 if ( xml ) {
2256 while ( (elem = elem[ dir ]) ) {
2257 if ( elem.nodeType === 1 || checkNonElements ) {
2258 if ( matcher( elem, context, xml ) ) {
2259 return true;
2260 }
2261 }
2262 }
2263 } else {
2264 while ( (elem = elem[ dir ]) ) {
2265 if ( elem.nodeType === 1 || checkNonElements ) {
2266 outerCache = elem[ expando ] || (elem[ expando ] = {});
2267
2268 // Support: IE <9 only
2269 // Defend against cloned attroperties (jQuery gh-1709)
2270 uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});
2271
2272 if ( skip && skip === elem.nodeName.toLowerCase() ) {
2273 elem = elem[ dir ] || elem;
2274 } else if ( (oldCache = uniqueCache[ key ]) &&
2275 oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
2276
2277 // Assign to newCache so results back-propagate to previous elements
2278 return (newCache[ 2 ] = oldCache[ 2 ]);
2279 } else {
2280 // Reuse newcache so results back-propagate to previous elements
2281 uniqueCache[ key ] = newCache;
2282
2283 // A match means we're done; a fail means we have to keep checking
2284 if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
2285 return true;
2286 }
2287 }
2288 }
2289 }
2290 }
2291 return false;
2292 };
2293 }
2294
2295 function elementMatcher( matchers ) {
2296 return matchers.length > 1 ?
2297 function( elem, context, xml ) {
2298 var i = matchers.length;
2299 while ( i-- ) {
2300 if ( !matchers[i]( elem, context, xml ) ) {
2301 return false;
2302 }
2303 }
2304 return true;
2305 } :
2306 matchers[0];
2307 }
2308
2309 function multipleContexts( selector, contexts, results ) {
2310 var i = 0,
2311 len = contexts.length;
2312 for ( ; i < len; i++ ) {
2313 Sizzle( selector, contexts[i], results );
2314 }
2315 return results;
2316 }
2317
2318 function condense( unmatched, map, filter, context, xml ) {
2319 var elem,
2320 newUnmatched = [],
2321 i = 0,
2322 len = unmatched.length,
2323 mapped = map != null;
2324
2325 for ( ; i < len; i++ ) {
2326 if ( (elem = unmatched[i]) ) {
2327 if ( !filter || filter( elem, context, xml ) ) {
2328 newUnmatched.push( elem );
2329 if ( mapped ) {
2330 map.push( i );
2331 }
2332 }
2333 }
2334 }
2335
2336 return newUnmatched;
2337 }
2338
2339 function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
2340 if ( postFilter && !postFilter[ expando ] ) {
2341 postFilter = setMatcher( postFilter );
2342 }
2343 if ( postFinder && !postFinder[ expando ] ) {
2344 postFinder = setMatcher( postFinder, postSelector );
2345 }
2346 return markFunction(function( seed, results, context, xml ) {
2347 var temp, i, elem,
2348 preMap = [],
2349 postMap = [],
2350 preexisting = results.length,
2351
2352 // Get initial elements from seed or context
2353 elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
2354
2355 // Prefilter to get matcher input, preserving a map for seed-results synchronization
2356 matcherIn = preFilter && ( seed || !selector ) ?
2357 condense( elems, preMap, preFilter, context, xml ) :
2358 elems,
2359
2360 matcherOut = matcher ?
2361 // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
2362 postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
2363
2364 // ...intermediate processing is necessary
2365 [] :
2366
2367 // ...otherwise use results directly
2368 results :
2369 matcherIn;
2370
2371 // Find primary matches
2372 if ( matcher ) {
2373 matcher( matcherIn, matcherOut, context, xml );
2374 }
2375
2376 // Apply postFilter
2377 if ( postFilter ) {
2378 temp = condense( matcherOut, postMap );
2379 postFilter( temp, [], context, xml );
2380
2381 // Un-match failing elements by moving them back to matcherIn
2382 i = temp.length;
2383 while ( i-- ) {
2384 if ( (elem = temp[i]) ) {
2385 matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
2386 }
2387 }
2388 }
2389
2390 if ( seed ) {
2391 if ( postFinder || preFilter ) {
2392 if ( postFinder ) {
2393 // Get the final matcherOut by condensing this intermediate into postFinder contexts
2394 temp = [];
2395 i = matcherOut.length;
2396 while ( i-- ) {
2397 if ( (elem = matcherOut[i]) ) {
2398 // Restore matcherIn since elem is not yet a final match
2399 temp.push( (matcherIn[i] = elem) );
2400 }
2401 }
2402 postFinder( null, (matcherOut = []), temp, xml );
2403 }
2404
2405 // Move matched elements from seed to results to keep them synchronized
2406 i = matcherOut.length;
2407 while ( i-- ) {
2408 if ( (elem = matcherOut[i]) &&
2409 (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
2410
2411 seed[temp] = !(results[temp] = elem);
2412 }
2413 }
2414 }
2415
2416 // Add elements to results, through postFinder if defined
2417 } else {
2418 matcherOut = condense(
2419 matcherOut === results ?
2420 matcherOut.splice( preexisting, matcherOut.length ) :
2421 matcherOut
2422 );
2423 if ( postFinder ) {
2424 postFinder( null, results, matcherOut, xml );
2425 } else {
2426 push.apply( results, matcherOut );
2427 }
2428 }
2429 });
2430 }
2431
2432 function matcherFromTokens( tokens ) {
2433 var checkContext, matcher, j,
2434 len = tokens.length,
2435 leadingRelative = Expr.relative[ tokens[0].type ],
2436 implicitRelative = leadingRelative || Expr.relative[" "],
2437 i = leadingRelative ? 1 : 0,
2438
2439 // The foundational matcher ensures that elements are reachable from top-level context(s)
2440 matchContext = addCombinator( function( elem ) {
2441 return elem === checkContext;
2442 }, implicitRelative, true ),
2443 matchAnyContext = addCombinator( function( elem ) {
2444 return indexOf( checkContext, elem ) > -1;
2445 }, implicitRelative, true ),
2446 matchers = [ function( elem, context, xml ) {
2447 var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
2448 (checkContext = context).nodeType ?
2449 matchContext( elem, context, xml ) :
2450 matchAnyContext( elem, context, xml ) );
2451 // Avoid hanging onto element (issue #299)
2452 checkContext = null;
2453 return ret;
2454 } ];
2455
2456 for ( ; i < len; i++ ) {
2457 if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
2458 matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
2459 } else {
2460 matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
2461
2462 // Return special upon seeing a positional matcher
2463 if ( matcher[ expando ] ) {
2464 // Find the next relative operator (if any) for proper handling
2465 j = ++i;
2466 for ( ; j < len; j++ ) {
2467 if ( Expr.relative[ tokens[j].type ] ) {
2468 break;
2469 }
2470 }
2471 return setMatcher(
2472 i > 1 && elementMatcher( matchers ),
2473 i > 1 && toSelector(
2474 // If the preceding token was a descendant combinator, insert an implicit any-element `*`
2475 tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
2476 ).replace( rtrim, "$1" ),
2477 matcher,
2478 i < j && matcherFromTokens( tokens.slice( i, j ) ),
2479 j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
2480 j < len && toSelector( tokens )
2481 );
2482 }
2483 matchers.push( matcher );
2484 }
2485 }
2486
2487 return elementMatcher( matchers );
2488 }
2489
2490 function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
2491 var bySet = setMatchers.length > 0,
2492 byElement = elementMatchers.length > 0,
2493 superMatcher = function( seed, context, xml, results, outermost ) {
2494 var elem, j, matcher,
2495 matchedCount = 0,
2496 i = "0",
2497 unmatched = seed && [],
2498 setMatched = [],
2499 contextBackup = outermostContext,
2500 // We must always have either seed elements or outermost context
2501 elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
2502 // Use integer dirruns iff this is the outermost matcher
2503 dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
2504 len = elems.length;
2505
2506 if ( outermost ) {
2507 outermostContext = context === document || context || outermost;
2508 }
2509
2510 // Add elements passing elementMatchers directly to results
2511 // Support: IE<9, Safari
2512 // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
2513 for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
2514 if ( byElement && elem ) {
2515 j = 0;
2516 if ( !context && elem.ownerDocument !== document ) {
2517 setDocument( elem );
2518 xml = !documentIsHTML;
2519 }
2520 while ( (matcher = elementMatchers[j++]) ) {
2521 if ( matcher( elem, context || document, xml) ) {
2522 results.push( elem );
2523 break;
2524 }
2525 }
2526 if ( outermost ) {
2527 dirruns = dirrunsUnique;
2528 }
2529 }
2530
2531 // Track unmatched elements for set filters
2532 if ( bySet ) {
2533 // They will have gone through all possible matchers
2534 if ( (elem = !matcher && elem) ) {
2535 matchedCount--;
2536 }
2537
2538 // Lengthen the array for every element, matched or not
2539 if ( seed ) {
2540 unmatched.push( elem );
2541 }
2542 }
2543 }
2544
2545 // `i` is now the count of elements visited above, and adding it to `matchedCount`
2546 // makes the latter nonnegative.
2547 matchedCount += i;
2548
2549 // Apply set filters to unmatched elements
2550 // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
2551 // equals `i`), unless we didn't visit _any_ elements in the above loop because we have
2552 // no element matchers and no seed.
2553 // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
2554 // case, which will result in a "00" `matchedCount` that differs from `i` but is also
2555 // numerically zero.
2556 if ( bySet && i !== matchedCount ) {
2557 j = 0;
2558 while ( (matcher = setMatchers[j++]) ) {
2559 matcher( unmatched, setMatched, context, xml );
2560 }
2561
2562 if ( seed ) {
2563 // Reintegrate element matches to eliminate the need for sorting
2564 if ( matchedCount > 0 ) {
2565 while ( i-- ) {
2566 if ( !(unmatched[i] || setMatched[i]) ) {
2567 setMatched[i] = pop.call( results );
2568 }
2569 }
2570 }
2571
2572 // Discard index placeholder values to get only actual matches
2573 setMatched = condense( setMatched );
2574 }
2575
2576 // Add matches to results
2577 push.apply( results, setMatched );
2578
2579 // Seedless set matches succeeding multiple successful matchers stipulate sorting
2580 if ( outermost && !seed && setMatched.length > 0 &&
2581 ( matchedCount + setMatchers.length ) > 1 ) {
2582
2583 Sizzle.uniqueSort( results );
2584 }
2585 }
2586
2587 // Override manipulation of globals by nested matchers
2588 if ( outermost ) {
2589 dirruns = dirrunsUnique;
2590 outermostContext = contextBackup;
2591 }
2592
2593 return unmatched;
2594 };
2595
2596 return bySet ?
2597 markFunction( superMatcher ) :
2598 superMatcher;
2599 }
2600
2601 compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
2602 var i,
2603 setMatchers = [],
2604 elementMatchers = [],
2605 cached = compilerCache[ selector + " " ];
2606
2607 if ( !cached ) {
2608 // Generate a function of recursive functions that can be used to check each element
2609 if ( !match ) {
2610 match = tokenize( selector );
2611 }
2612 i = match.length;
2613 while ( i-- ) {
2614 cached = matcherFromTokens( match[i] );
2615 if ( cached[ expando ] ) {
2616 setMatchers.push( cached );
2617 } else {
2618 elementMatchers.push( cached );
2619 }
2620 }
2621
2622 // Cache the compiled function
2623 cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
2624
2625 // Save selector and tokenization
2626 cached.selector = selector;
2627 }
2628 return cached;
2629 };
2630
2631 /**
2632 * A low-level selection function that works with Sizzle's compiled
2633 * selector functions
2634 * @param {String|Function} selector A selector or a pre-compiled
2635 * selector function built with Sizzle.compile
2636 * @param {Element} context
2637 * @param {Array} [results]
2638 * @param {Array} [seed] A set of elements to match against
2639 */
2640 select = Sizzle.select = function( selector, context, results, seed ) {
2641 var i, tokens, token, type, find,
2642 compiled = typeof selector === "function" && selector,
2643 match = !seed && tokenize( (selector = compiled.selector || selector) );
2644
2645 results = results || [];
2646
2647 // Try to minimize operations if there is only one selector in the list and no seed
2648 // (the latter of which guarantees us context)
2649 if ( match.length === 1 ) {
2650
2651 // Reduce context if the leading compound selector is an ID
2652 tokens = match[0] = match[0].slice( 0 );
2653 if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
2654 context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) {
2655
2656 context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
2657 if ( !context ) {
2658 return results;
2659
2660 // Precompiled matchers will still verify ancestry, so step up a level
2661 } else if ( compiled ) {
2662 context = context.parentNode;
2663 }
2664
2665 selector = selector.slice( tokens.shift().value.length );
2666 }
2667
2668 // Fetch a seed set for right-to-left matching
2669 i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
2670 while ( i-- ) {
2671 token = tokens[i];
2672
2673 // Abort if we hit a combinator
2674 if ( Expr.relative[ (type = token.type) ] ) {
2675 break;
2676 }
2677 if ( (find = Expr.find[ type ]) ) {
2678 // Search, expanding context for leading sibling combinators
2679 if ( (seed = find(
2680 token.matches[0].replace( runescape, funescape ),
2681 rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
2682 )) ) {
2683
2684 // If seed is empty or no tokens remain, we can return early
2685 tokens.splice( i, 1 );
2686 selector = seed.length && toSelector( tokens );
2687 if ( !selector ) {
2688 push.apply( results, seed );
2689 return results;
2690 }
2691
2692 break;
2693 }
2694 }
2695 }
2696 }
2697
2698 // Compile and execute a filtering function if one is not provided
2699 // Provide `match` to avoid retokenization if we modified the selector above
2700 ( compiled || compile( selector, match ) )(
2701 seed,
2702 context,
2703 !documentIsHTML,
2704 results,
2705 !context || rsibling.test( selector ) && testContext( context.parentNode ) || context
2706 );
2707 return results;
2708 };
2709
2710 // One-time assignments
2711
2712 // Sort stability
2713 support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
2714
2715 // Support: Chrome 14-35+
2716 // Always assume duplicates if they aren't passed to the comparison function
2717 support.detectDuplicates = !!hasDuplicate;
2718
2719 // Initialize against the default document
2720 setDocument();
2721
2722 // Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
2723 // Detached nodes confoundingly follow *each other*
2724 support.sortDetached = assert(function( el ) {
2725 // Should return 1, but returns 4 (following)
2726 return el.compareDocumentPosition( document.createElement("fieldset") ) & 1;
2727 });
2728
2729 // Support: IE<8
2730 // Prevent attribute/property "interpolation"
2731 // https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
2732 if ( !assert(function( el ) {
2733 el.innerHTML = "<a href='#'></a>";
2734 return el.firstChild.getAttribute("href") === "#" ;
2735 }) ) {
2736 addHandle( "type|href|height|width", function( elem, name, isXML ) {
2737 if ( !isXML ) {
2738 return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
2739 }
2740 });
2741 }
2742
2743 // Support: IE<9
2744 // Use defaultValue in place of getAttribute("value")
2745 if ( !support.attributes || !assert(function( el ) {
2746 el.innerHTML = "<input/>";
2747 el.firstChild.setAttribute( "value", "" );
2748 return el.firstChild.getAttribute( "value" ) === "";
2749 }) ) {
2750 addHandle( "value", function( elem, name, isXML ) {
2751 if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
2752 return elem.defaultValue;
2753 }
2754 });
2755 }
2756
2757 // Support: IE<9
2758 // Use getAttributeNode to fetch booleans when getAttribute lies
2759 if ( !assert(function( el ) {
2760 return el.getAttribute("disabled") == null;
2761 }) ) {
2762 addHandle( booleans, function( elem, name, isXML ) {
2763 var val;
2764 if ( !isXML ) {
2765 return elem[ name ] === true ? name.toLowerCase() :
2766 (val = elem.getAttributeNode( name )) && val.specified ?
2767 val.value :
2768 null;
2769 }
2770 });
2771 }
2772
2773 return Sizzle;
2774
2775 })( window );
2776
2777
2778
2779 jQuery.find = Sizzle;
2780 jQuery.expr = Sizzle.selectors;
2781
2782 // Deprecated
2783 jQuery.expr[ ":" ] = jQuery.expr.pseudos;
2784 jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
2785 jQuery.text = Sizzle.getText;
2786 jQuery.isXMLDoc = Sizzle.isXML;
2787 jQuery.contains = Sizzle.contains;
2788 jQuery.escapeSelector = Sizzle.escape;
2789
2790
2791
2792
2793 var dir = function( elem, dir, until ) {
2794 var matched = [],
2795 truncate = until !== undefined;
2796
2797 while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
2798 if ( elem.nodeType === 1 ) {
2799 if ( truncate && jQuery( elem ).is( until ) ) {
2800 break;
2801 }
2802 matched.push( elem );
2803 }
2804 }
2805 return matched;
2806 };
2807
2808
2809 var siblings = function( n, elem ) {
2810 var matched = [];
2811
2812 for ( ; n; n = n.nextSibling ) {
2813 if ( n.nodeType === 1 && n !== elem ) {
2814 matched.push( n );
2815 }
2816 }
2817
2818 return matched;
2819 };
2820
2821
2822 var rneedsContext = jQuery.expr.match.needsContext;
2823
2824
2825
2826 function nodeName( elem, name ) {
2827
2828 return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
2829
2830 };
2831 var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );
2832
2833
2834
2835 // Implement the identical functionality for filter and not
2836 function winnow( elements, qualifier, not ) {
2837 if ( isFunction( qualifier ) ) {
2838 return jQuery.grep( elements, function( elem, i ) {
2839 return !!qualifier.call( elem, i, elem ) !== not;
2840 } );
2841 }
2842
2843 // Single element
2844 if ( qualifier.nodeType ) {
2845 return jQuery.grep( elements, function( elem ) {
2846 return ( elem === qualifier ) !== not;
2847 } );
2848 }
2849
2850 // Arraylike of elements (jQuery, arguments, Array)
2851 if ( typeof qualifier !== "string" ) {
2852 return jQuery.grep( elements, function( elem ) {
2853 return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
2854 } );
2855 }
2856
2857 // Filtered directly for both simple and complex selectors
2858 return jQuery.filter( qualifier, elements, not );
2859 }
2860
2861 jQuery.filter = function( expr, elems, not ) {
2862 var elem = elems[ 0 ];
2863
2864 if ( not ) {
2865 expr = ":not(" + expr + ")";
2866 }
2867
2868 if ( elems.length === 1 && elem.nodeType === 1 ) {
2869 return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
2870 }
2871
2872 return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
2873 return elem.nodeType === 1;
2874 } ) );
2875 };
2876
2877 jQuery.fn.extend( {
2878 find: function( selector ) {
2879 var i, ret,
2880 len = this.length,
2881 self = this;
2882
2883 if ( typeof selector !== "string" ) {
2884 return this.pushStack( jQuery( selector ).filter( function() {
2885 for ( i = 0; i < len; i++ ) {
2886 if ( jQuery.contains( self[ i ], this ) ) {
2887 return true;
2888 }
2889 }
2890 } ) );
2891 }
2892
2893 ret = this.pushStack( [] );
2894
2895 for ( i = 0; i < len; i++ ) {
2896 jQuery.find( selector, self[ i ], ret );
2897 }
2898
2899 return len > 1 ? jQuery.uniqueSort( ret ) : ret;
2900 },
2901 filter: function( selector ) {
2902 return this.pushStack( winnow( this, selector || [], false ) );
2903 },
2904 not: function( selector ) {
2905 return this.pushStack( winnow( this, selector || [], true ) );
2906 },
2907 is: function( selector ) {
2908 return !!winnow(
2909 this,
2910
2911 // If this is a positional/relative selector, check membership in the returned set
2912 // so $("p:first").is("p:last") won't return true for a doc with two "p".
2913 typeof selector === "string" && rneedsContext.test( selector ) ?
2914 jQuery( selector ) :
2915 selector || [],
2916 false
2917 ).length;
2918 }
2919 } );
2920
2921
2922 // Initialize a jQuery object
2923
2924
2925 // A central reference to the root jQuery(document)
2926 var rootjQuery,
2927
2928 // A simple way to check for HTML strings
2929 // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
2930 // Strict HTML recognition (#11290: must start with <)
2931 // Shortcut simple #id case for speed
2932 rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,
2933
2934 init = jQuery.fn.init = function( selector, context, root ) {
2935 var match, elem;
2936
2937 // HANDLE: $(""), $(null), $(undefined), $(false)
2938 if ( !selector ) {
2939 return this;
2940 }
2941
2942 // Method init() accepts an alternate rootjQuery
2943 // so migrate can support jQuery.sub (gh-2101)
2944 root = root || rootjQuery;
2945
2946 // Handle HTML strings
2947 if ( typeof selector === "string" ) {
2948 if ( selector[ 0 ] === "<" &&
2949 selector[ selector.length - 1 ] === ">" &&
2950 selector.length >= 3 ) {
2951
2952 // Assume that strings that start and end with <> are HTML and skip the regex check
2953 match = [ null, selector, null ];
2954
2955 } else {
2956 match = rquickExpr.exec( selector );
2957 }
2958
2959 // Match html or make sure no context is specified for #id
2960 if ( match && ( match[ 1 ] || !context ) ) {
2961
2962 // HANDLE: $(html) -> $(array)
2963 if ( match[ 1 ] ) {
2964 context = context instanceof jQuery ? context[ 0 ] : context;
2965
2966 // Option to run scripts is true for back-compat
2967 // Intentionally let the error be thrown if parseHTML is not present
2968 jQuery.merge( this, jQuery.parseHTML(
2969 match[ 1 ],
2970 context && context.nodeType ? context.ownerDocument || context : document,
2971 true
2972 ) );
2973
2974 // HANDLE: $(html, props)
2975 if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
2976 for ( match in context ) {
2977
2978 // Properties of context are called as methods if possible
2979 if ( isFunction( this[ match ] ) ) {
2980 this[ match ]( context[ match ] );
2981
2982 // ...and otherwise set as attributes
2983 } else {
2984 this.attr( match, context[ match ] );
2985 }
2986 }
2987 }
2988
2989 return this;
2990
2991 // HANDLE: $(#id)
2992 } else {
2993 elem = document.getElementById( match[ 2 ] );
2994
2995 if ( elem ) {
2996
2997 // Inject the element directly into the jQuery object
2998 this[ 0 ] = elem;
2999 this.length = 1;
3000 }
3001 return this;
3002 }
3003
3004 // HANDLE: $(expr, $(...))
3005 } else if ( !context || context.jquery ) {
3006 return ( context || root ).find( selector );
3007
3008 // HANDLE: $(expr, context)
3009 // (which is just equivalent to: $(context).find(expr)
3010 } else {
3011 return this.constructor( context ).find( selector );
3012 }
3013
3014 // HANDLE: $(DOMElement)
3015 } else if ( selector.nodeType ) {
3016 this[ 0 ] = selector;
3017 this.length = 1;
3018 return this;
3019
3020 // HANDLE: $(function)
3021 // Shortcut for document ready
3022 } else if ( isFunction( selector ) ) {
3023 return root.ready !== undefined ?
3024 root.ready( selector ) :
3025
3026 // Execute immediately if ready is not present
3027 selector( jQuery );
3028 }
3029
3030 return jQuery.makeArray( selector, this );
3031 };
3032
3033 // Give the init function the jQuery prototype for later instantiation
3034 init.prototype = jQuery.fn;
3035
3036 // Initialize central reference
3037 rootjQuery = jQuery( document );
3038
3039
3040 var rparentsprev = /^(?:parents|prev(?:Until|All))/,
3041
3042 // Methods guaranteed to produce a unique set when starting from a unique set
3043 guaranteedUnique = {
3044 children: true,
3045 contents: true,
3046 next: true,
3047 prev: true
3048 };
3049
3050 jQuery.fn.extend( {
3051 has: function( target ) {
3052 var targets = jQuery( target, this ),
3053 l = targets.length;
3054
3055 return this.filter( function() {
3056 var i = 0;
3057 for ( ; i < l; i++ ) {
3058 if ( jQuery.contains( this, targets[ i ] ) ) {
3059 return true;
3060 }
3061 }
3062 } );
3063 },
3064
3065 closest: function( selectors, context ) {
3066 var cur,
3067 i = 0,
3068 l = this.length,
3069 matched = [],
3070 targets = typeof selectors !== "string" && jQuery( selectors );
3071
3072 // Positional selectors never match, since there's no _selection_ context
3073 if ( !rneedsContext.test( selectors ) ) {
3074 for ( ; i < l; i++ ) {
3075 for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {
3076
3077 // Always skip document fragments
3078 if ( cur.nodeType < 11 && ( targets ?
3079 targets.index( cur ) > -1 :
3080
3081 // Don't pass non-elements to Sizzle
3082 cur.nodeType === 1 &&
3083 jQuery.find.matchesSelector( cur, selectors ) ) ) {
3084
3085 matched.push( cur );
3086 break;
3087 }
3088 }
3089 }
3090 }
3091
3092 return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
3093 },
3094
3095 // Determine the position of an element within the set
3096 index: function( elem ) {
3097
3098 // No argument, return index in parent
3099 if ( !elem ) {
3100 return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
3101 }
3102
3103 // Index in selector
3104 if ( typeof elem === "string" ) {
3105 return indexOf.call( jQuery( elem ), this[ 0 ] );
3106 }
3107
3108 // Locate the position of the desired element
3109 return indexOf.call( this,
3110
3111 // If it receives a jQuery object, the first element is used
3112 elem.jquery ? elem[ 0 ] : elem
3113 );
3114 },
3115
3116 add: function( selector, context ) {
3117 return this.pushStack(
3118 jQuery.uniqueSort(
3119 jQuery.merge( this.get(), jQuery( selector, context ) )
3120 )
3121 );
3122 },
3123
3124 addBack: function( selector ) {
3125 return this.add( selector == null ?
3126 this.prevObject : this.prevObject.filter( selector )
3127 );
3128 }
3129 } );
3130
3131 function sibling( cur, dir ) {
3132 while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
3133 return cur;
3134 }
3135
3136 jQuery.each( {
3137 parent: function( elem ) {
3138 var parent = elem.parentNode;
3139 return parent && parent.nodeType !== 11 ? parent : null;
3140 },
3141 parents: function( elem ) {
3142 return dir( elem, "parentNode" );
3143 },
3144 parentsUntil: function( elem, i, until ) {
3145 return dir( elem, "parentNode", until );
3146 },
3147 next: function( elem ) {
3148 return sibling( elem, "nextSibling" );
3149 },
3150 prev: function( elem ) {
3151 return sibling( elem, "previousSibling" );
3152 },
3153 nextAll: function( elem ) {
3154 return dir( elem, "nextSibling" );
3155 },
3156 prevAll: function( elem ) {
3157 return dir( elem, "previousSibling" );
3158 },
3159 nextUntil: function( elem, i, until ) {
3160 return dir( elem, "nextSibling", until );
3161 },
3162 prevUntil: function( elem, i, until ) {
3163 return dir( elem, "previousSibling", until );
3164 },
3165 siblings: function( elem ) {
3166 return siblings( ( elem.parentNode || {} ).firstChild, elem );
3167 },
3168 children: function( elem ) {
3169 return siblings( elem.firstChild );
3170 },
3171 contents: function( elem ) {
3172 if ( typeof elem.contentDocument !== "undefined" ) {
3173 return elem.contentDocument;
3174 }
3175
3176 // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
3177 // Treat the template element as a regular one in browsers that
3178 // don't support it.
3179 if ( nodeName( elem, "template" ) ) {
3180 elem = elem.content || elem;
3181 }
3182
3183 return jQuery.merge( [], elem.childNodes );
3184 }
3185 }, function( name, fn ) {
3186 jQuery.fn[ name ] = function( until, selector ) {
3187 var matched = jQuery.map( this, fn, until );
3188
3189 if ( name.slice( -5 ) !== "Until" ) {
3190 selector = until;
3191 }
3192
3193 if ( selector && typeof selector === "string" ) {
3194 matched = jQuery.filter( selector, matched );
3195 }
3196
3197 if ( this.length > 1 ) {
3198
3199 // Remove duplicates
3200 if ( !guaranteedUnique[ name ] ) {
3201 jQuery.uniqueSort( matched );
3202 }
3203
3204 // Reverse order for parents* and prev-derivatives
3205 if ( rparentsprev.test( name ) ) {
3206 matched.reverse();
3207 }
3208 }
3209
3210 return this.pushStack( matched );
3211 };
3212 } );
3213 var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );
3214
3215
3216
3217 // Convert String-formatted options into Object-formatted ones
3218 function createOptions( options ) {
3219 var object = {};
3220 jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
3221 object[ flag ] = true;
3222 } );
3223 return object;
3224 }
3225
3226 /*
3227 * Create a callback list using the following parameters:
3228 *
3229 * options: an optional list of space-separated options that will change how
3230 * the callback list behaves or a more traditional option object
3231 *
3232 * By default a callback list will act like an event callback list and can be
3233 * "fired" multiple times.
3234 *
3235 * Possible options:
3236 *
3237 * once: will ensure the callback list can only be fired once (like a Deferred)
3238 *
3239 * memory: will keep track of previous values and will call any callback added
3240 * after the list has been fired right away with the latest "memorized"
3241 * values (like a Deferred)
3242 *
3243 * unique: will ensure a callback can only be added once (no duplicate in the list)
3244 *
3245 * stopOnFalse: interrupt callings when a callback returns false
3246 *
3247 */
3248 jQuery.Callbacks = function( options ) {
3249
3250 // Convert options from String-formatted to Object-formatted if needed
3251 // (we check in cache first)
3252 options = typeof options === "string" ?
3253 createOptions( options ) :
3254 jQuery.extend( {}, options );
3255
3256 var // Flag to know if list is currently firing
3257 firing,
3258
3259 // Last fire value for non-forgettable lists
3260 memory,
3261
3262 // Flag to know if list was already fired
3263 fired,
3264
3265 // Flag to prevent firing
3266 locked,
3267
3268 // Actual callback list
3269 list = [],
3270
3271 // Queue of execution data for repeatable lists
3272 queue = [],
3273
3274 // Index of currently firing callback (modified by add/remove as needed)
3275 firingIndex = -1,
3276
3277 // Fire callbacks
3278 fire = function() {
3279
3280 // Enforce single-firing
3281 locked = locked || options.once;
3282
3283 // Execute callbacks for all pending executions,
3284 // respecting firingIndex overrides and runtime changes
3285 fired = firing = true;
3286 for ( ; queue.length; firingIndex = -1 ) {
3287 memory = queue.shift();
3288 while ( ++firingIndex < list.length ) {
3289
3290 // Run callback and check for early termination
3291 if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
3292 options.stopOnFalse ) {
3293
3294 // Jump to end and forget the data so .add doesn't re-fire
3295 firingIndex = list.length;
3296 memory = false;
3297 }
3298 }
3299 }
3300
3301 // Forget the data if we're done with it
3302 if ( !options.memory ) {
3303 memory = false;
3304 }
3305
3306 firing = false;
3307
3308 // Clean up if we're done firing for good
3309 if ( locked ) {
3310
3311 // Keep an empty list if we have data for future add calls
3312 if ( memory ) {
3313 list = [];
3314
3315 // Otherwise, this object is spent
3316 } else {
3317 list = "";
3318 }
3319 }
3320 },
3321
3322 // Actual Callbacks object
3323 self = {
3324
3325 // Add a callback or a collection of callbacks to the list
3326 add: function() {
3327 if ( list ) {
3328
3329 // If we have memory from a past run, we should fire after adding
3330 if ( memory && !firing ) {
3331 firingIndex = list.length - 1;
3332 queue.push( memory );
3333 }
3334
3335 ( function add( args ) {
3336 jQuery.each( args, function( _, arg ) {
3337 if ( isFunction( arg ) ) {
3338 if ( !options.unique || !self.has( arg ) ) {
3339 list.push( arg );
3340 }
3341 } else if ( arg && arg.length && toType( arg ) !== "string" ) {
3342
3343 // Inspect recursively
3344 add( arg );
3345 }
3346 } );
3347 } )( arguments );
3348
3349 if ( memory && !firing ) {
3350 fire();
3351 }
3352 }
3353 return this;
3354 },
3355
3356 // Remove a callback from the list
3357 remove: function() {
3358 jQuery.each( arguments, function( _, arg ) {
3359 var index;
3360 while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
3361 list.splice( index, 1 );
3362
3363 // Handle firing indexes
3364 if ( index <= firingIndex ) {
3365 firingIndex--;
3366 }
3367 }
3368 } );
3369 return this;
3370 },
3371
3372 // Check if a given callback is in the list.
3373 // If no argument is given, return whether or not list has callbacks attached.
3374 has: function( fn ) {
3375 return fn ?
3376 jQuery.inArray( fn, list ) > -1 :
3377 list.length > 0;
3378 },
3379
3380 // Remove all callbacks from the list
3381 empty: function() {
3382 if ( list ) {
3383 list = [];
3384 }
3385 return this;
3386 },
3387
3388 // Disable .fire and .add
3389 // Abort any current/pending executions
3390 // Clear all callbacks and values
3391 disable: function() {
3392 locked = queue = [];
3393 list = memory = "";
3394 return this;
3395 },
3396 disabled: function() {
3397 return !list;
3398 },
3399
3400 // Disable .fire
3401 // Also disable .add unless we have memory (since it would have no effect)
3402 // Abort any pending executions
3403 lock: function() {
3404 locked = queue = [];
3405 if ( !memory && !firing ) {
3406 list = memory = "";
3407 }
3408 return this;
3409 },
3410 locked: function() {
3411 return !!locked;
3412 },
3413
3414 // Call all callbacks with the given context and arguments
3415 fireWith: function( context, args ) {
3416 if ( !locked ) {
3417 args = args || [];
3418 args = [ context, args.slice ? args.slice() : args ];
3419 queue.push( args );
3420 if ( !firing ) {
3421 fire();
3422 }
3423 }
3424 return this;
3425 },
3426
3427 // Call all the callbacks with the given arguments
3428 fire: function() {
3429 self.fireWith( this, arguments );
3430 return this;
3431 },
3432
3433 // To know if the callbacks have already been called at least once
3434 fired: function() {
3435 return !!fired;
3436 }
3437 };
3438
3439 return self;
3440 };
3441
3442
3443 function Identity( v ) {
3444 return v;
3445 }
3446 function Thrower( ex ) {
3447 throw ex;
3448 }
3449
3450 function adoptValue( value, resolve, reject, noValue ) {
3451 var method;
3452
3453 try {
3454
3455 // Check for promise aspect first to privilege synchronous behavior
3456 if ( value && isFunction( ( method = value.promise ) ) ) {
3457 method.call( value ).done( resolve ).fail( reject );
3458
3459 // Other thenables
3460 } else if ( value && isFunction( ( method = value.then ) ) ) {
3461 method.call( value, resolve, reject );
3462
3463 // Other non-thenables
3464 } else {
3465
3466 // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
3467 // * false: [ value ].slice( 0 ) => resolve( value )
3468 // * true: [ value ].slice( 1 ) => resolve()
3469 resolve.apply( undefined, [ value ].slice( noValue ) );
3470 }
3471
3472 // For Promises/A+, convert exceptions into rejections
3473 // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
3474 // Deferred#then to conditionally suppress rejection.
3475 } catch ( value ) {
3476
3477 // Support: Android 4.0 only
3478 // Strict mode functions invoked without .call/.apply get global-object context
3479 reject.apply( undefined, [ value ] );
3480 }
3481 }
3482
3483 jQuery.extend( {
3484
3485 Deferred: function( func ) {
3486 var tuples = [
3487
3488 // action, add listener, callbacks,
3489 // ... .then handlers, argument index, [final state]
3490 [ "notify", "progress", jQuery.Callbacks( "memory" ),
3491 jQuery.Callbacks( "memory" ), 2 ],
3492 [ "resolve", "done", jQuery.Callbacks( "once memory" ),
3493 jQuery.Callbacks( "once memory" ), 0, "resolved" ],
3494 [ "reject", "fail", jQuery.Callbacks( "once memory" ),
3495 jQuery.Callbacks( "once memory" ), 1, "rejected" ]
3496 ],
3497 state = "pending",
3498 promise = {
3499 state: function() {
3500 return state;
3501 },
3502 always: function() {
3503 deferred.done( arguments ).fail( arguments );
3504 return this;
3505 },
3506 "catch": function( fn ) {
3507 return promise.then( null, fn );
3508 },
3509
3510 // Keep pipe for back-compat
3511 pipe: function( /* fnDone, fnFail, fnProgress */ ) {
3512 var fns = arguments;
3513
3514 return jQuery.Deferred( function( newDefer ) {
3515 jQuery.each( tuples, function( i, tuple ) {
3516
3517 // Map tuples (progress, done, fail) to arguments (done, fail, progress)
3518 var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];
3519
3520 // deferred.progress(function() { bind to newDefer or newDefer.notify })
3521 // deferred.done(function() { bind to newDefer or newDefer.resolve })
3522 // deferred.fail(function() { bind to newDefer or newDefer.reject })
3523 deferred[ tuple[ 1 ] ]( function() {
3524 var returned = fn && fn.apply( this, arguments );
3525 if ( returned && isFunction( returned.promise ) ) {
3526 returned.promise()
3527 .progress( newDefer.notify )
3528 .done( newDefer.resolve )
3529 .fail( newDefer.reject );
3530 } else {
3531 newDefer[ tuple[ 0 ] + "With" ](
3532 this,
3533 fn ? [ returned ] : arguments
3534 );
3535 }
3536 } );
3537 } );
3538 fns = null;
3539 } ).promise();
3540 },
3541 then: function( onFulfilled, onRejected, onProgress ) {
3542 var maxDepth = 0;
3543 function resolve( depth, deferred, handler, special ) {
3544 return function() {
3545 var that = this,
3546 args = arguments,
3547 mightThrow = function() {
3548 var returned, then;
3549
3550 // Support: Promises/A+ section 2.3.3.3.3
3551 // https://promisesaplus.com/#point-59
3552 // Ignore double-resolution attempts
3553 if ( depth < maxDepth ) {
3554 return;
3555 }
3556
3557 returned = handler.apply( that, args );
3558
3559 // Support: Promises/A+ section 2.3.1
3560 // https://promisesaplus.com/#point-48
3561 if ( returned === deferred.promise() ) {
3562 throw new TypeError( "Thenable self-resolution" );
3563 }
3564
3565 // Support: Promises/A+ sections 2.3.3.1, 3.5
3566 // https://promisesaplus.com/#point-54
3567 // https://promisesaplus.com/#point-75
3568 // Retrieve `then` only once
3569 then = returned &&
3570
3571 // Support: Promises/A+ section 2.3.4
3572 // https://promisesaplus.com/#point-64
3573 // Only check objects and functions for thenability
3574 ( typeof returned === "object" ||
3575 typeof returned === "function" ) &&
3576 returned.then;
3577
3578 // Handle a returned thenable
3579 if ( isFunction( then ) ) {
3580
3581 // Special processors (notify) just wait for resolution
3582 if ( special ) {
3583 then.call(
3584 returned,
3585 resolve( maxDepth, deferred, Identity, special ),
3586 resolve( maxDepth, deferred, Thrower, special )
3587 );
3588
3589 // Normal processors (resolve) also hook into progress
3590 } else {
3591
3592 // ...and disregard older resolution values
3593 maxDepth++;
3594
3595 then.call(
3596 returned,
3597 resolve( maxDepth, deferred, Identity, special ),
3598 resolve( maxDepth, deferred, Thrower, special ),
3599 resolve( maxDepth, deferred, Identity,
3600 deferred.notifyWith )
3601 );
3602 }
3603
3604 // Handle all other returned values
3605 } else {
3606
3607 // Only substitute handlers pass on context
3608 // and multiple values (non-spec behavior)
3609 if ( handler !== Identity ) {
3610 that = undefined;
3611 args = [ returned ];
3612 }
3613
3614 // Process the value(s)
3615 // Default process is resolve
3616 ( special || deferred.resolveWith )( that, args );
3617 }
3618 },
3619
3620 // Only normal processors (resolve) catch and reject exceptions
3621 process = special ?
3622 mightThrow :
3623 function() {
3624 try {
3625 mightThrow();
3626 } catch ( e ) {
3627
3628 if ( jQuery.Deferred.exceptionHook ) {
3629 jQuery.Deferred.exceptionHook( e,
3630 process.stackTrace );
3631 }
3632
3633 // Support: Promises/A+ section 2.3.3.3.4.1
3634 // https://promisesaplus.com/#point-61
3635 // Ignore post-resolution exceptions
3636 if ( depth + 1 >= maxDepth ) {
3637
3638 // Only substitute handlers pass on context
3639 // and multiple values (non-spec behavior)
3640 if ( handler !== Thrower ) {
3641 that = undefined;
3642 args = [ e ];
3643 }
3644
3645 deferred.rejectWith( that, args );
3646 }
3647 }
3648 };
3649
3650 // Support: Promises/A+ section 2.3.3.3.1
3651 // https://promisesaplus.com/#point-57
3652 // Re-resolve promises immediately to dodge false rejection from
3653 // subsequent errors
3654 if ( depth ) {
3655 process();
3656 } else {
3657
3658 // Call an optional hook to record the stack, in case of exception
3659 // since it's otherwise lost when execution goes async
3660 if ( jQuery.Deferred.getStackHook ) {
3661 process.stackTrace = jQuery.Deferred.getStackHook();
3662 }
3663 window.setTimeout( process );
3664 }
3665 };
3666 }
3667
3668 return jQuery.Deferred( function( newDefer ) {
3669
3670 // progress_handlers.add( ... )
3671 tuples[ 0 ][ 3 ].add(
3672 resolve(
3673 0,
3674 newDefer,
3675 isFunction( onProgress ) ?
3676 onProgress :
3677 Identity,
3678 newDefer.notifyWith
3679 )
3680 );
3681
3682 // fulfilled_handlers.add( ... )
3683 tuples[ 1 ][ 3 ].add(
3684 resolve(
3685 0,
3686 newDefer,
3687 isFunction( onFulfilled ) ?
3688 onFulfilled :
3689 Identity
3690 )
3691 );
3692
3693 // rejected_handlers.add( ... )
3694 tuples[ 2 ][ 3 ].add(
3695 resolve(
3696 0,
3697 newDefer,
3698 isFunction( onRejected ) ?
3699 onRejected :
3700 Thrower
3701 )
3702 );
3703 } ).promise();
3704 },
3705
3706 // Get a promise for this deferred
3707 // If obj is provided, the promise aspect is added to the object
3708 promise: function( obj ) {
3709 return obj != null ? jQuery.extend( obj, promise ) : promise;
3710 }
3711 },
3712 deferred = {};
3713
3714 // Add list-specific methods
3715 jQuery.each( tuples, function( i, tuple ) {
3716 var list = tuple[ 2 ],
3717 stateString = tuple[ 5 ];
3718
3719 // promise.progress = list.add
3720 // promise.done = list.add
3721 // promise.fail = list.add
3722 promise[ tuple[ 1 ] ] = list.add;
3723
3724 // Handle state
3725 if ( stateString ) {
3726 list.add(
3727 function() {
3728
3729 // state = "resolved" (i.e., fulfilled)
3730 // state = "rejected"
3731 state = stateString;
3732 },
3733
3734 // rejected_callbacks.disable
3735 // fulfilled_callbacks.disable
3736 tuples[ 3 - i ][ 2 ].disable,
3737
3738 // rejected_handlers.disable
3739 // fulfilled_handlers.disable
3740 tuples[ 3 - i ][ 3 ].disable,
3741
3742 // progress_callbacks.lock
3743 tuples[ 0 ][ 2 ].lock,
3744
3745 // progress_handlers.lock
3746 tuples[ 0 ][ 3 ].lock
3747 );
3748 }
3749
3750 // progress_handlers.fire
3751 // fulfilled_handlers.fire
3752 // rejected_handlers.fire
3753 list.add( tuple[ 3 ].fire );
3754
3755 // deferred.notify = function() { deferred.notifyWith(...) }
3756 // deferred.resolve = function() { deferred.resolveWith(...) }
3757 // deferred.reject = function() { deferred.rejectWith(...) }
3758 deferred[ tuple[ 0 ] ] = function() {
3759 deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
3760 return this;
3761 };
3762
3763 // deferred.notifyWith = list.fireWith
3764 // deferred.resolveWith = list.fireWith
3765 // deferred.rejectWith = list.fireWith
3766 deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
3767 } );
3768
3769 // Make the deferred a promise
3770 promise.promise( deferred );
3771
3772 // Call given func if any
3773 if ( func ) {
3774 func.call( deferred, deferred );
3775 }
3776
3777 // All done!
3778 return deferred;
3779 },
3780
3781 // Deferred helper
3782 when: function( singleValue ) {
3783 var
3784
3785 // count of uncompleted subordinates
3786 remaining = arguments.length,
3787
3788 // count of unprocessed arguments
3789 i = remaining,
3790
3791 // subordinate fulfillment data
3792 resolveContexts = Array( i ),
3793 resolveValues = slice.call( arguments ),
3794
3795 // the master Deferred
3796 master = jQuery.Deferred(),
3797
3798 // subordinate callback factory
3799 updateFunc = function( i ) {
3800 return function( value ) {
3801 resolveContexts[ i ] = this;
3802 resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
3803 if ( !( --remaining ) ) {
3804 master.resolveWith( resolveContexts, resolveValues );
3805 }
3806 };
3807 };
3808
3809 // Single- and empty arguments are adopted like Promise.resolve
3810 if ( remaining <= 1 ) {
3811 adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject,
3812 !remaining );
3813
3814 // Use .then() to unwrap secondary thenables (cf. gh-3000)
3815 if ( master.state() === "pending" ||
3816 isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {
3817
3818 return master.then();
3819 }
3820 }
3821
3822 // Multiple arguments are aggregated like Promise.all array elements
3823 while ( i-- ) {
3824 adoptValue( resolveValues[ i ], updateFunc( i ), master.reject );
3825 }
3826
3827 return master.promise();
3828 }
3829 } );
3830
3831
3832 // These usually indicate a programmer mistake during development,
3833 // warn about them ASAP rather than swallowing them by default.
3834 var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;
3835
3836 jQuery.Deferred.exceptionHook = function( error, stack ) {
3837
3838 // Support: IE 8 - 9 only
3839 // Console exists when dev tools are open, which can happen at any time
3840 if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
3841 window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
3842 }
3843 };
3844
3845
3846
3847
3848 jQuery.readyException = function( error ) {
3849 window.setTimeout( function() {
3850 throw error;
3851 } );
3852 };
3853
3854
3855
3856
3857 // The deferred used on DOM ready
3858 var readyList = jQuery.Deferred();
3859
3860 jQuery.fn.ready = function( fn ) {
3861
3862 readyList
3863 .then( fn )
3864
3865 // Wrap jQuery.readyException in a function so that the lookup
3866 // happens at the time of error handling instead of callback
3867 // registration.
3868 .catch( function( error ) {
3869 jQuery.readyException( error );
3870 } );
3871
3872 return this;
3873 };
3874
3875 jQuery.extend( {
3876
3877 // Is the DOM ready to be used? Set to true once it occurs.
3878 isReady: false,
3879
3880 // A counter to track how many items to wait for before
3881 // the ready event fires. See #6781
3882 readyWait: 1,
3883
3884 // Handle when the DOM is ready
3885 ready: function( wait ) {
3886
3887 // Abort if there are pending holds or we're already ready
3888 if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
3889 return;
3890 }
3891
3892 // Remember that the DOM is ready
3893 jQuery.isReady = true;
3894
3895 // If a normal DOM Ready event fired, decrement, and wait if need be
3896 if ( wait !== true && --jQuery.readyWait > 0 ) {
3897 return;
3898 }
3899
3900 // If there are functions bound, to execute
3901 readyList.resolveWith( document, [ jQuery ] );
3902 }
3903 } );
3904
3905 jQuery.ready.then = readyList.then;
3906
3907 // The ready event handler and self cleanup method
3908 function completed() {
3909 document.removeEventListener( "DOMContentLoaded", completed );
3910 window.removeEventListener( "load", completed );
3911 jQuery.ready();
3912 }
3913
3914 // Catch cases where $(document).ready() is called
3915 // after the browser event has already occurred.
3916 // Support: IE <=9 - 10 only
3917 // Older IE sometimes signals "interactive" too soon
3918 if ( document.readyState === "complete" ||
3919 ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {
3920
3921 // Handle it asynchronously to allow scripts the opportunity to delay ready
3922 window.setTimeout( jQuery.ready );
3923
3924 } else {
3925
3926 // Use the handy event callback
3927 document.addEventListener( "DOMContentLoaded", completed );
3928
3929 // A fallback to window.onload, that will always work
3930 window.addEventListener( "load", completed );
3931 }
3932
3933
3934
3935
3936 // Multifunctional method to get and set values of a collection
3937 // The value/s can optionally be executed if it's a function
3938 var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
3939 var i = 0,
3940 len = elems.length,
3941 bulk = key == null;
3942
3943 // Sets many values
3944 if ( toType( key ) === "object" ) {
3945 chainable = true;
3946 for ( i in key ) {
3947 access( elems, fn, i, key[ i ], true, emptyGet, raw );
3948 }
3949
3950 // Sets one value
3951 } else if ( value !== undefined ) {
3952 chainable = true;
3953
3954 if ( !isFunction( value ) ) {
3955 raw = true;
3956 }
3957
3958 if ( bulk ) {
3959
3960 // Bulk operations run against the entire set
3961 if ( raw ) {
3962 fn.call( elems, value );
3963 fn = null;
3964
3965 // ...except when executing function values
3966 } else {
3967 bulk = fn;
3968 fn = function( elem, key, value ) {
3969 return bulk.call( jQuery( elem ), value );
3970 };
3971 }
3972 }
3973
3974 if ( fn ) {
3975 for ( ; i < len; i++ ) {
3976 fn(
3977 elems[ i ], key, raw ?
3978 value :
3979 value.call( elems[ i ], i, fn( elems[ i ], key ) )
3980 );
3981 }
3982 }
3983 }
3984
3985 if ( chainable ) {
3986 return elems;
3987 }
3988
3989 // Gets
3990 if ( bulk ) {
3991 return fn.call( elems );
3992 }
3993
3994 return len ? fn( elems[ 0 ], key ) : emptyGet;
3995 };
3996
3997
3998 // Matches dashed string for camelizing
3999 var rmsPrefix = /^-ms-/,
4000 rdashAlpha = /-([a-z])/g;
4001
4002 // Used by camelCase as callback to replace()
4003 function fcamelCase( all, letter ) {
4004 return letter.toUpperCase();
4005 }
4006
4007 // Convert dashed to camelCase; used by the css and data modules
4008 // Support: IE <=9 - 11, Edge 12 - 15
4009 // Microsoft forgot to hump their vendor prefix (#9572)
4010 function camelCase( string ) {
4011 return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
4012 }
4013 var acceptData = function( owner ) {
4014
4015 // Accepts only:
4016 // - Node
4017 // - Node.ELEMENT_NODE
4018 // - Node.DOCUMENT_NODE
4019 // - Object
4020 // - Any
4021 return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
4022 };
4023
4024
4025
4026
4027 function Data() {
4028 this.expando = jQuery.expando + Data.uid++;
4029 }
4030
4031 Data.uid = 1;
4032
4033 Data.prototype = {
4034
4035 cache: function( owner ) {
4036
4037 // Check if the owner object already has a cache
4038 var value = owner[ this.expando ];
4039
4040 // If not, create one
4041 if ( !value ) {
4042 value = {};
4043
4044 // We can accept data for non-element nodes in modern browsers,
4045 // but we should not, see #8335.
4046 // Always return an empty object.
4047 if ( acceptData( owner ) ) {
4048
4049 // If it is a node unlikely to be stringify-ed or looped over
4050 // use plain assignment
4051 if ( owner.nodeType ) {
4052 owner[ this.expando ] = value;
4053
4054 // Otherwise secure it in a non-enumerable property
4055 // configurable must be true to allow the property to be
4056 // deleted when data is removed
4057 } else {
4058 Object.defineProperty( owner, this.expando, {
4059 value: value,
4060 configurable: true
4061 } );
4062 }
4063 }
4064 }
4065
4066 return value;
4067 },
4068 set: function( owner, data, value ) {
4069 var prop,
4070 cache = this.cache( owner );
4071
4072 // Handle: [ owner, key, value ] args
4073 // Always use camelCase key (gh-2257)
4074 if ( typeof data === "string" ) {
4075 cache[ camelCase( data ) ] = value;
4076
4077 // Handle: [ owner, { properties } ] args
4078 } else {
4079
4080 // Copy the properties one-by-one to the cache object
4081 for ( prop in data ) {
4082 cache[ camelCase( prop ) ] = data[ prop ];
4083 }
4084 }
4085 return cache;
4086 },
4087 get: function( owner, key ) {
4088 return key === undefined ?
4089 this.cache( owner ) :
4090
4091 // Always use camelCase key (gh-2257)
4092 owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ];
4093 },
4094 access: function( owner, key, value ) {
4095
4096 // In cases where either:
4097 //
4098 // 1. No key was specified
4099 // 2. A string key was specified, but no value provided
4100 //
4101 // Take the "read" path and allow the get method to determine
4102 // which value to return, respectively either:
4103 //
4104 // 1. The entire cache object
4105 // 2. The data stored at the key
4106 //
4107 if ( key === undefined ||
4108 ( ( key && typeof key === "string" ) && value === undefined ) ) {
4109
4110 return this.get( owner, key );
4111 }
4112
4113 // When the key is not a string, or both a key and value
4114 // are specified, set or extend (existing objects) with either:
4115 //
4116 // 1. An object of properties
4117 // 2. A key and value
4118 //
4119 this.set( owner, key, value );
4120
4121 // Since the "set" path can have two possible entry points
4122 // return the expected data based on which path was taken[*]
4123 return value !== undefined ? value : key;
4124 },
4125 remove: function( owner, key ) {
4126 var i,
4127 cache = owner[ this.expando ];
4128
4129 if ( cache === undefined ) {
4130 return;
4131 }
4132
4133 if ( key !== undefined ) {
4134
4135 // Support array or space separated string of keys
4136 if ( Array.isArray( key ) ) {
4137
4138 // If key is an array of keys...
4139 // We always set camelCase keys, so remove that.
4140 key = key.map( camelCase );
4141 } else {
4142 key = camelCase( key );
4143
4144 // If a key with the spaces exists, use it.
4145 // Otherwise, create an array by matching non-whitespace
4146 key = key in cache ?
4147 [ key ] :
4148 ( key.match( rnothtmlwhite ) || [] );
4149 }
4150
4151 i = key.length;
4152
4153 while ( i-- ) {
4154 delete cache[ key[ i ] ];
4155 }
4156 }
4157
4158 // Remove the expando if there's no more data
4159 if ( key === undefined || jQuery.isEmptyObject( cache ) ) {
4160
4161 // Support: Chrome <=35 - 45
4162 // Webkit & Blink performance suffers when deleting properties
4163 // from DOM nodes, so set to undefined instead
4164 // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
4165 if ( owner.nodeType ) {
4166 owner[ this.expando ] = undefined;
4167 } else {
4168 delete owner[ this.expando ];
4169 }
4170 }
4171 },
4172 hasData: function( owner ) {
4173 var cache = owner[ this.expando ];
4174 return cache !== undefined && !jQuery.isEmptyObject( cache );
4175 }
4176 };
4177 var dataPriv = new Data();
4178
4179 var dataUser = new Data();
4180
4181
4182
4183 // Implementation Summary
4184 //
4185 // 1. Enforce API surface and semantic compatibility with 1.9.x branch
4186 // 2. Improve the module's maintainability by reducing the storage
4187 // paths to a single mechanism.
4188 // 3. Use the same single mechanism to support "private" and "user" data.
4189 // 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
4190 // 5. Avoid exposing implementation details on user objects (eg. expando properties)
4191 // 6. Provide a clear path for implementation upgrade to WeakMap in 2014
4192
4193 var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
4194 rmultiDash = /[A-Z]/g;
4195
4196 function getData( data ) {
4197 if ( data === "true" ) {
4198 return true;
4199 }
4200
4201 if ( data === "false" ) {
4202 return false;
4203 }
4204
4205 if ( data === "null" ) {
4206 return null;
4207 }
4208
4209 // Only convert to a number if it doesn't change the string
4210 if ( data === +data + "" ) {
4211 return +data;
4212 }
4213
4214 if ( rbrace.test( data ) ) {
4215 return JSON.parse( data );
4216 }
4217
4218 return data;
4219 }
4220
4221 function dataAttr( elem, key, data ) {
4222 var name;
4223
4224 // If nothing was found internally, try to fetch any
4225 // data from the HTML5 data-* attribute
4226 if ( data === undefined && elem.nodeType === 1 ) {
4227 name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
4228 data = elem.getAttribute( name );
4229
4230 if ( typeof data === "string" ) {
4231 try {
4232 data = getData( data );
4233 } catch ( e ) {}
4234
4235 // Make sure we set the data so it isn't changed later
4236 dataUser.set( elem, key, data );
4237 } else {
4238 data = undefined;
4239 }
4240 }
4241 return data;
4242 }
4243
4244 jQuery.extend( {
4245 hasData: function( elem ) {
4246 return dataUser.hasData( elem ) || dataPriv.hasData( elem );
4247 },
4248
4249 data: function( elem, name, data ) {
4250 return dataUser.access( elem, name, data );
4251 },
4252
4253 removeData: function( elem, name ) {
4254 dataUser.remove( elem, name );
4255 },
4256
4257 // TODO: Now that all calls to _data and _removeData have been replaced
4258 // with direct calls to dataPriv methods, these can be deprecated.
4259 _data: function( elem, name, data ) {
4260 return dataPriv.access( elem, name, data );
4261 },
4262
4263 _removeData: function( elem, name ) {
4264 dataPriv.remove( elem, name );
4265 }
4266 } );
4267
4268 jQuery.fn.extend( {
4269 data: function( key, value ) {
4270 var i, name, data,
4271 elem = this[ 0 ],
4272 attrs = elem && elem.attributes;
4273
4274 // Gets all values
4275 if ( key === undefined ) {
4276 if ( this.length ) {
4277 data = dataUser.get( elem );
4278
4279 if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
4280 i = attrs.length;
4281 while ( i-- ) {
4282
4283 // Support: IE 11 only
4284 // The attrs elements can be null (#14894)
4285 if ( attrs[ i ] ) {
4286 name = attrs[ i ].name;
4287 if ( name.indexOf( "data-" ) === 0 ) {
4288 name = camelCase( name.slice( 5 ) );
4289 dataAttr( elem, name, data[ name ] );
4290 }
4291 }
4292 }
4293 dataPriv.set( elem, "hasDataAttrs", true );
4294 }
4295 }
4296
4297 return data;
4298 }
4299
4300 // Sets multiple values
4301 if ( typeof key === "object" ) {
4302 return this.each( function() {
4303 dataUser.set( this, key );
4304 } );
4305 }
4306
4307 return access( this, function( value ) {
4308 var data;
4309
4310 // The calling jQuery object (element matches) is not empty
4311 // (and therefore has an element appears at this[ 0 ]) and the
4312 // `value` parameter was not undefined. An empty jQuery object
4313 // will result in `undefined` for elem = this[ 0 ] which will
4314 // throw an exception if an attempt to read a data cache is made.
4315 if ( elem && value === undefined ) {
4316
4317 // Attempt to get data from the cache
4318 // The key will always be camelCased in Data
4319 data = dataUser.get( elem, key );
4320 if ( data !== undefined ) {
4321 return data;
4322 }
4323
4324 // Attempt to "discover" the data in
4325 // HTML5 custom data-* attrs
4326 data = dataAttr( elem, key );
4327 if ( data !== undefined ) {
4328 return data;
4329 }
4330
4331 // We tried really hard, but the data doesn't exist.
4332 return;
4333 }
4334
4335 // Set the data...
4336 this.each( function() {
4337
4338 // We always store the camelCased key
4339 dataUser.set( this, key, value );
4340 } );
4341 }, null, value, arguments.length > 1, null, true );
4342 },
4343
4344 removeData: function( key ) {
4345 return this.each( function() {
4346 dataUser.remove( this, key );
4347 } );
4348 }
4349 } );
4350
4351
4352 jQuery.extend( {
4353 queue: function( elem, type, data ) {
4354 var queue;
4355
4356 if ( elem ) {
4357 type = ( type || "fx" ) + "queue";
4358 queue = dataPriv.get( elem, type );
4359
4360 // Speed up dequeue by getting out quickly if this is just a lookup
4361 if ( data ) {
4362 if ( !queue || Array.isArray( data ) ) {
4363 queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
4364 } else {
4365 queue.push( data );
4366 }
4367 }
4368 return queue || [];
4369 }
4370 },
4371
4372 dequeue: function( elem, type ) {
4373 type = type || "fx";
4374
4375 var queue = jQuery.queue( elem, type ),
4376 startLength = queue.length,
4377 fn = queue.shift(),
4378 hooks = jQuery._queueHooks( elem, type ),
4379 next = function() {
4380 jQuery.dequeue( elem, type );
4381 };
4382
4383 // If the fx queue is dequeued, always remove the progress sentinel
4384 if ( fn === "inprogress" ) {
4385 fn = queue.shift();
4386 startLength--;
4387 }
4388
4389 if ( fn ) {
4390
4391 // Add a progress sentinel to prevent the fx queue from being
4392 // automatically dequeued
4393 if ( type === "fx" ) {
4394 queue.unshift( "inprogress" );
4395 }
4396
4397 // Clear up the last queue stop function
4398 delete hooks.stop;
4399 fn.call( elem, next, hooks );
4400 }
4401
4402 if ( !startLength && hooks ) {
4403 hooks.empty.fire();
4404 }
4405 },
4406
4407 // Not public - generate a queueHooks object, or return the current one
4408 _queueHooks: function( elem, type ) {
4409 var key = type + "queueHooks";
4410 return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
4411 empty: jQuery.Callbacks( "once memory" ).add( function() {
4412 dataPriv.remove( elem, [ type + "queue", key ] );
4413 } )
4414 } );
4415 }
4416 } );
4417
4418 jQuery.fn.extend( {
4419 queue: function( type, data ) {
4420 var setter = 2;
4421
4422 if ( typeof type !== "string" ) {
4423 data = type;
4424 type = "fx";
4425 setter--;
4426 }
4427
4428 if ( arguments.length < setter ) {
4429 return jQuery.queue( this[ 0 ], type );
4430 }
4431
4432 return data === undefined ?
4433 this :
4434 this.each( function() {
4435 var queue = jQuery.queue( this, type, data );
4436
4437 // Ensure a hooks for this queue
4438 jQuery._queueHooks( this, type );
4439
4440 if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
4441 jQuery.dequeue( this, type );
4442 }
4443 } );
4444 },
4445 dequeue: function( type ) {
4446 return this.each( function() {
4447 jQuery.dequeue( this, type );
4448 } );
4449 },
4450 clearQueue: function( type ) {
4451 return this.queue( type || "fx", [] );
4452 },
4453
4454 // Get a promise resolved when queues of a certain type
4455 // are emptied (fx is the type by default)
4456 promise: function( type, obj ) {
4457 var tmp,
4458 count = 1,
4459 defer = jQuery.Deferred(),
4460 elements = this,
4461 i = this.length,
4462 resolve = function() {
4463 if ( !( --count ) ) {
4464 defer.resolveWith( elements, [ elements ] );
4465 }
4466 };
4467
4468 if ( typeof type !== "string" ) {
4469 obj = type;
4470 type = undefined;
4471 }
4472 type = type || "fx";
4473
4474 while ( i-- ) {
4475 tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
4476 if ( tmp && tmp.empty ) {
4477 count++;
4478 tmp.empty.add( resolve );
4479 }
4480 }
4481 resolve();
4482 return defer.promise( obj );
4483 }
4484 } );
4485 var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;
4486
4487 var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );
4488
4489
4490 var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
4491
4492 var documentElement = document.documentElement;
4493
4494
4495
4496 var isAttached = function( elem ) {
4497 return jQuery.contains( elem.ownerDocument, elem );
4498 },
4499 composed = { composed: true };
4500
4501 // Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only
4502 // Check attachment across shadow DOM boundaries when possible (gh-3504)
4503 // Support: iOS 10.0-10.2 only
4504 // Early iOS 10 versions support `attachShadow` but not `getRootNode`,
4505 // leading to errors. We need to check for `getRootNode`.
4506 if ( documentElement.getRootNode ) {
4507 isAttached = function( elem ) {
4508 return jQuery.contains( elem.ownerDocument, elem ) ||
4509 elem.getRootNode( composed ) === elem.ownerDocument;
4510 };
4511 }
4512 var isHiddenWithinTree = function( elem, el ) {
4513
4514 // isHiddenWithinTree might be called from jQuery#filter function;
4515 // in that case, element will be second argument
4516 elem = el || elem;
4517
4518 // Inline style trumps all
4519 return elem.style.display === "none" ||
4520 elem.style.display === "" &&
4521
4522 // Otherwise, check computed style
4523 // Support: Firefox <=43 - 45
4524 // Disconnected elements can have computed display: none, so first confirm that elem is
4525 // in the document.
4526 isAttached( elem ) &&
4527
4528 jQuery.css( elem, "display" ) === "none";
4529 };
4530
4531 var swap = function( elem, options, callback, args ) {
4532 var ret, name,
4533 old = {};
4534
4535 // Remember the old values, and insert the new ones
4536 for ( name in options ) {
4537 old[ name ] = elem.style[ name ];
4538 elem.style[ name ] = options[ name ];
4539 }
4540
4541 ret = callback.apply( elem, args || [] );
4542
4543 // Revert the old values
4544 for ( name in options ) {
4545 elem.style[ name ] = old[ name ];
4546 }
4547
4548 return ret;
4549 };
4550
4551
4552
4553
4554 function adjustCSS( elem, prop, valueParts, tween ) {
4555 var adjusted, scale,
4556 maxIterations = 20,
4557 currentValue = tween ?
4558 function() {
4559 return tween.cur();
4560 } :
4561 function() {
4562 return jQuery.css( elem, prop, "" );
4563 },
4564 initial = currentValue(),
4565 unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
4566
4567 // Starting value computation is required for potential unit mismatches
4568 initialInUnit = elem.nodeType &&
4569 ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
4570 rcssNum.exec( jQuery.css( elem, prop ) );
4571
4572 if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {
4573
4574 // Support: Firefox <=54
4575 // Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144)
4576 initial = initial / 2;
4577
4578 // Trust units reported by jQuery.css
4579 unit = unit || initialInUnit[ 3 ];
4580
4581 // Iteratively approximate from a nonzero starting point
4582 initialInUnit = +initial || 1;
4583
4584 while ( maxIterations-- ) {
4585
4586 // Evaluate and update our best guess (doubling guesses that zero out).
4587 // Finish if the scale equals or crosses 1 (making the old*new product non-positive).
4588 jQuery.style( elem, prop, initialInUnit + unit );
4589 if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) {
4590 maxIterations = 0;
4591 }
4592 initialInUnit = initialInUnit / scale;
4593
4594 }
4595
4596 initialInUnit = initialInUnit * 2;
4597 jQuery.style( elem, prop, initialInUnit + unit );
4598
4599 // Make sure we update the tween properties later on
4600 valueParts = valueParts || [];
4601 }
4602
4603 if ( valueParts ) {
4604 initialInUnit = +initialInUnit || +initial || 0;
4605
4606 // Apply relative offset (+=/-=) if specified
4607 adjusted = valueParts[ 1 ] ?
4608 initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
4609 +valueParts[ 2 ];
4610 if ( tween ) {
4611 tween.unit = unit;
4612 tween.start = initialInUnit;
4613 tween.end = adjusted;
4614 }
4615 }
4616 return adjusted;
4617 }
4618
4619
4620 var defaultDisplayMap = {};
4621
4622 function getDefaultDisplay( elem ) {
4623 var temp,
4624 doc = elem.ownerDocument,
4625 nodeName = elem.nodeName,
4626 display = defaultDisplayMap[ nodeName ];
4627
4628 if ( display ) {
4629 return display;
4630 }
4631
4632 temp = doc.body.appendChild( doc.createElement( nodeName ) );
4633 display = jQuery.css( temp, "display" );
4634
4635 temp.parentNode.removeChild( temp );
4636
4637 if ( display === "none" ) {
4638 display = "block";
4639 }
4640 defaultDisplayMap[ nodeName ] = display;
4641
4642 return display;
4643 }
4644
4645 function showHide( elements, show ) {
4646 var display, elem,
4647 values = [],
4648 index = 0,
4649 length = elements.length;
4650
4651 // Determine new display value for elements that need to change
4652 for ( ; index < length; index++ ) {
4653 elem = elements[ index ];
4654 if ( !elem.style ) {
4655 continue;
4656 }
4657
4658 display = elem.style.display;
4659 if ( show ) {
4660
4661 // Since we force visibility upon cascade-hidden elements, an immediate (and slow)
4662 // check is required in this first loop unless we have a nonempty display value (either
4663 // inline or about-to-be-restored)
4664 if ( display === "none" ) {
4665 values[ index ] = dataPriv.get( elem, "display" ) || null;
4666 if ( !values[ index ] ) {
4667 elem.style.display = "";
4668 }
4669 }
4670 if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
4671 values[ index ] = getDefaultDisplay( elem );
4672 }
4673 } else {
4674 if ( display !== "none" ) {
4675 values[ index ] = "none";
4676
4677 // Remember what we're overwriting
4678 dataPriv.set( elem, "display", display );
4679 }
4680 }
4681 }
4682
4683 // Set the display of the elements in a second loop to avoid constant reflow
4684 for ( index = 0; index < length; index++ ) {
4685 if ( values[ index ] != null ) {
4686 elements[ index ].style.display = values[ index ];
4687 }
4688 }
4689
4690 return elements;
4691 }
4692
4693 jQuery.fn.extend( {
4694 show: function() {
4695 return showHide( this, true );
4696 },
4697 hide: function() {
4698 return showHide( this );
4699 },
4700 toggle: function( state ) {
4701 if ( typeof state === "boolean" ) {
4702 return state ? this.show() : this.hide();
4703 }
4704
4705 return this.each( function() {
4706 if ( isHiddenWithinTree( this ) ) {
4707 jQuery( this ).show();
4708 } else {
4709 jQuery( this ).hide();
4710 }
4711 } );
4712 }
4713 } );
4714 var rcheckableType = ( /^(?:checkbox|radio)$/i );
4715
4716 var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i );
4717
4718 var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i );
4719
4720
4721
4722 // We have to close these tags to support XHTML (#13200)
4723 var wrapMap = {
4724
4725 // Support: IE <=9 only
4726 option: [ 1, "<select multiple='multiple'>", "</select>" ],
4727
4728 // XHTML parsers do not magically insert elements in the
4729 // same way that tag soup parsers do. So we cannot shorten
4730 // this by omitting <tbody> or other required elements.
4731 thead: [ 1, "<table>", "</table>" ],
4732 col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
4733 tr: [ 2, "<table><tbody>", "</tbody></table>" ],
4734 td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
4735
4736 _default: [ 0, "", "" ]
4737 };
4738
4739 // Support: IE <=9 only
4740 wrapMap.optgroup = wrapMap.option;
4741
4742 wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
4743 wrapMap.th = wrapMap.td;
4744
4745
4746 function getAll( context, tag ) {
4747
4748 // Support: IE <=9 - 11 only
4749 // Use typeof to avoid zero-argument method invocation on host objects (#15151)
4750 var ret;
4751
4752 if ( typeof context.getElementsByTagName !== "undefined" ) {
4753 ret = context.getElementsByTagName( tag || "*" );
4754
4755 } else if ( typeof context.querySelectorAll !== "undefined" ) {
4756 ret = context.querySelectorAll( tag || "*" );
4757
4758 } else {
4759 ret = [];
4760 }
4761
4762 if ( tag === undefined || tag && nodeName( context, tag ) ) {
4763 return jQuery.merge( [ context ], ret );
4764 }
4765
4766 return ret;
4767 }
4768
4769
4770 // Mark scripts as having already been evaluated
4771 function setGlobalEval( elems, refElements ) {
4772 var i = 0,
4773 l = elems.length;
4774
4775 for ( ; i < l; i++ ) {
4776 dataPriv.set(
4777 elems[ i ],
4778 "globalEval",
4779 !refElements || dataPriv.get( refElements[ i ], "globalEval" )
4780 );
4781 }
4782 }
4783
4784
4785 var rhtml = /<|&#?\w+;/;
4786
4787 function buildFragment( elems, context, scripts, selection, ignored ) {
4788 var elem, tmp, tag, wrap, attached, j,
4789 fragment = context.createDocumentFragment(),
4790 nodes = [],
4791 i = 0,
4792 l = elems.length;
4793
4794 for ( ; i < l; i++ ) {
4795 elem = elems[ i ];
4796
4797 if ( elem || elem === 0 ) {
4798
4799 // Add nodes directly
4800 if ( toType( elem ) === "object" ) {
4801
4802 // Support: Android <=4.0 only, PhantomJS 1 only
4803 // push.apply(_, arraylike) throws on ancient WebKit
4804 jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
4805
4806 // Convert non-html into a text node
4807 } else if ( !rhtml.test( elem ) ) {
4808 nodes.push( context.createTextNode( elem ) );
4809
4810 // Convert html into DOM nodes
4811 } else {
4812 tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
4813
4814 // Deserialize a standard representation
4815 tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
4816 wrap = wrapMap[ tag ] || wrapMap._default;
4817 tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
4818
4819 // Descend through wrappers to the right content
4820 j = wrap[ 0 ];
4821 while ( j-- ) {
4822 tmp = tmp.lastChild;
4823 }
4824
4825 // Support: Android <=4.0 only, PhantomJS 1 only
4826 // push.apply(_, arraylike) throws on ancient WebKit
4827 jQuery.merge( nodes, tmp.childNodes );
4828
4829 // Remember the top-level container
4830 tmp = fragment.firstChild;
4831
4832 // Ensure the created nodes are orphaned (#12392)
4833 tmp.textContent = "";
4834 }
4835 }
4836 }
4837
4838 // Remove wrapper from fragment
4839 fragment.textContent = "";
4840
4841 i = 0;
4842 while ( ( elem = nodes[ i++ ] ) ) {
4843
4844 // Skip elements already in the context collection (trac-4087)
4845 if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
4846 if ( ignored ) {
4847 ignored.push( elem );
4848 }
4849 continue;
4850 }
4851
4852 attached = isAttached( elem );
4853
4854 // Append to fragment
4855 tmp = getAll( fragment.appendChild( elem ), "script" );
4856
4857 // Preserve script evaluation history
4858 if ( attached ) {
4859 setGlobalEval( tmp );
4860 }
4861
4862 // Capture executables
4863 if ( scripts ) {
4864 j = 0;
4865 while ( ( elem = tmp[ j++ ] ) ) {
4866 if ( rscriptType.test( elem.type || "" ) ) {
4867 scripts.push( elem );
4868 }
4869 }
4870 }
4871 }
4872
4873 return fragment;
4874 }
4875
4876
4877 ( function() {
4878 var fragment = document.createDocumentFragment(),
4879 div = fragment.appendChild( document.createElement( "div" ) ),
4880 input = document.createElement( "input" );
4881
4882 // Support: Android 4.0 - 4.3 only
4883 // Check state lost if the name is set (#11217)
4884 // Support: Windows Web Apps (WWA)
4885 // `name` and `type` must use .setAttribute for WWA (#14901)
4886 input.setAttribute( "type", "radio" );
4887 input.setAttribute( "checked", "checked" );
4888 input.setAttribute( "name", "t" );
4889
4890 div.appendChild( input );
4891
4892 // Support: Android <=4.1 only
4893 // Older WebKit doesn't clone checked state correctly in fragments
4894 support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
4895
4896 // Support: IE <=11 only
4897 // Make sure textarea (and checkbox) defaultValue is properly cloned
4898 div.innerHTML = "<textarea>x</textarea>";
4899 support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
4900 } )();
4901
4902
4903 var
4904 rkeyEvent = /^key/,
4905 rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
4906 rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
4907
4908 function returnTrue() {
4909 return true;
4910 }
4911
4912 function returnFalse() {
4913 return false;
4914 }
4915
4916 // Support: IE <=9 - 11+
4917 // focus() and blur() are asynchronous, except when they are no-op.
4918 // So expect focus to be synchronous when the element is already active,
4919 // and blur to be synchronous when the element is not already active.
4920 // (focus and blur are always synchronous in other supported browsers,
4921 // this just defines when we can count on it).
4922 function expectSync( elem, type ) {
4923 return ( elem === safeActiveElement() ) === ( type === "focus" );
4924 }
4925
4926 // Support: IE <=9 only
4927 // Accessing document.activeElement can throw unexpectedly
4928 // https://bugs.jquery.com/ticket/13393
4929 function safeActiveElement() {
4930 try {
4931 return document.activeElement;
4932 } catch ( err ) { }
4933 }
4934
4935 function on( elem, types, selector, data, fn, one ) {
4936 var origFn, type;
4937
4938 // Types can be a map of types/handlers
4939 if ( typeof types === "object" ) {
4940
4941 // ( types-Object, selector, data )
4942 if ( typeof selector !== "string" ) {
4943
4944 // ( types-Object, data )
4945 data = data || selector;
4946 selector = undefined;
4947 }
4948 for ( type in types ) {
4949 on( elem, type, selector, data, types[ type ], one );
4950 }
4951 return elem;
4952 }
4953
4954 if ( data == null && fn == null ) {
4955
4956 // ( types, fn )
4957 fn = selector;
4958 data = selector = undefined;
4959 } else if ( fn == null ) {
4960 if ( typeof selector === "string" ) {
4961
4962 // ( types, selector, fn )
4963 fn = data;
4964 data = undefined;
4965 } else {
4966
4967 // ( types, data, fn )
4968 fn = data;
4969 data = selector;
4970 selector = undefined;
4971 }
4972 }
4973 if ( fn === false ) {
4974 fn = returnFalse;
4975 } else if ( !fn ) {
4976 return elem;
4977 }
4978
4979 if ( one === 1 ) {
4980 origFn = fn;
4981 fn = function( event ) {
4982
4983 // Can use an empty set, since event contains the info
4984 jQuery().off( event );
4985 return origFn.apply( this, arguments );
4986 };
4987
4988 // Use same guid so caller can remove using origFn
4989 fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
4990 }
4991 return elem.each( function() {
4992 jQuery.event.add( this, types, fn, data, selector );
4993 } );
4994 }
4995
4996 /*
4997 * Helper functions for managing events -- not part of the public interface.
4998 * Props to Dean Edwards' addEvent library for many of the ideas.
4999 */
5000 jQuery.event = {
Showing first 5,000 of 8,495 lines. View raw