src/core.js

   1 var jQuery = (function() {
   2
   3 // Define a local copy of jQuery
   4 var jQuery = function( selector, context ) {
   5                 // The jQuery object is actually just the init constructor 'enhanced'
   6                 return new jQuery.fn.init( selector, context, rootjQuery );
   7         },
   8
   9         // Map over jQuery in case of overwrite
  10         _jQuery = window.jQuery,
  11
  12         // Map over the $ in case of overwrite
  13         _$ = window.$,
  14
  15         // A central reference to the root jQuery(document)
  16         rootjQuery,
  17
  18         // A simple way to check for HTML strings or ID strings
  19         // (both of which we optimize for)
  20         quickExpr = /^(?:[^<]*(<[\w\W]+>)[^>]*$|#([\w\-]+)$)/,
  21
  22         // Is it a simple selector
  23         isSimple = /^.[^:#\[\.,]*$/,
  24
  25         // Check if a string has a non-whitespace character in it
  26         rnotwhite = /\S/,
  27         rwhite = /\s/,
  28
  29         // Used for trimming whitespace
  30         trimLeft = /^\s+/,
  31         trimRight = /\s+$/,
  32
  33         // Check for non-word characters
  34         rnonword = /\W/,
  35
  36         // Check for digits
  37         rdigit = /\d/,
  38
  39         // Match a standalone tag
  40         rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,
  41
  42         // JSON RegExp
  43         rvalidchars = /^[\],:{}\s]*$/,
  44         rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,
  45         rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
  46         rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
  47
  48         // Useragent RegExp
  49         rwebkit = /(webkit)[ \/]([\w.]+)/,
  50         ropera = /(opera)(?:.*version)?[ \/]([\w.]+)/,
  51         rmsie = /(msie) ([\w.]+)/,
  52         rmozilla = /(mozilla)(?:.*? rv:([\w.]+))?/,
  53
  54         // Keep a UserAgent string for use with jQuery.browser
  55         userAgent = navigator.userAgent,
  56
  57         // For matching the engine and version of the browser
  58         browserMatch,
  59
  60         // Has the ready events already been bound?
  61         readyBound = false,
  62
  63         // The deferred used on DOM ready
  64         readyList,
  65
  66         // Promise methods
  67         promiseMethods = "then done fail isResolved isRejected promise".split( " " ),
  68
  69         // The ready event handler
  70         DOMContentLoaded,
  71
  72         // Save a reference to some core methods
  73         toString = Object.prototype.toString,
  74         hasOwn = Object.prototype.hasOwnProperty,
  75         push = Array.prototype.push,
  76         slice = Array.prototype.slice,
  77         trim = String.prototype.trim,
  78         indexOf = Array.prototype.indexOf,
  79
  80         // [[Class]] -> type pairs
  81         class2type = {};
  82
  83 jQuery.fn = jQuery.prototype = {
  84         constructor: jQuery,
  85         init: function( selector, context, rootjQuery ) {
  86                 var match, elem, ret, doc;
  87
  88                 // Handle $(""), $(null), or $(undefined)
  89                 if ( !selector ) {
  90                         return this;
  91                 }
  92
  93                 // Handle $(DOMElement)
  94                 if ( selector.nodeType ) {
  95                         this.context = this[0] = selector;
  96                         this.length = 1;
  97                         return this;
  98                 }
  99
 100                 // The body element only exists once, optimize finding it
 101                 if ( selector === "body" && !context && document.body ) {
 102                         this.context = document;
 103                         this[0] = document.body;
 104                         this.selector = "body";
 105                         this.length = 1;
 106                         return this;
 107                 }
 108
 109                 // Handle HTML strings
 110                 if ( typeof selector === "string" ) {
 111                         // Are we dealing with HTML string or an ID?
 112                         match = quickExpr.exec( selector );
 113
 114                         // Verify a match, and that no context was specified for #id
 115                         if ( match && (match[1] || !context) ) {
 116
 117                                 // HANDLE: $(html) -> $(array)
 118                                 if ( match[1] ) {
 119                                         context = context instanceof jQuery ? context[0] : context;
 120                                         doc = (context ? context.ownerDocument || context : document);
 121
 122                                         // If a single string is passed in and it's a single tag
 123                                         // just do a createElement and skip the rest
 124                                         ret = rsingleTag.exec( selector );
 125
 126                                         if ( ret ) {
 127                                                 if ( jQuery.isPlainObject( context ) ) {
 128                                                         selector = [ document.createElement( ret[1] ) ];
 129                                                         jQuery.fn.attr.call( selector, context, true );
 130
 131                                                 } else {
 132                                                         selector = [ doc.createElement( ret[1] ) ];
 133                                                 }
 134
 135                                         } else {
 136                                                 ret = jQuery.buildFragment( [ match[1] ], [ doc ] );
 137                                                 selector = (ret.cacheable ? jQuery(ret.fragment).clone()[0] : ret.fragment).childNodes;
 138                                         }
 139
 140                                         return jQuery.merge( this, selector );
 141
 142                                 // HANDLE: $("#id")
 143                                 } else {
 144                                         elem = document.getElementById( match[2] );
 145
 146                                         // Check parentNode to catch when Blackberry 4.6 returns
 147                                         // nodes that are no longer in the document #6963
 148                                         if ( elem && elem.parentNode ) {
 149                                                 // Handle the case where IE and Opera return items
 150                                                 // by name instead of ID
 151                                                 if ( elem.id !== match[2] ) {
 152                                                         return rootjQuery.find( selector );
 153                                                 }
 154
 155                                                 // Otherwise, we inject the element directly into the jQuery object
 156                                                 this.length = 1;
 157                                                 this[0] = elem;
 158                                         }
 159
 160                                         this.context = document;
 161                                         this.selector = selector;
 162                                         return this;
 163                                 }
 164
 165                         // HANDLE: $("TAG")
 166                         } else if ( !context && !rnonword.test( selector ) ) {
 167                                 this.selector = selector;
 168                                 this.context = document;
 169                                 selector = document.getElementsByTagName( selector );
 170                                 return jQuery.merge( this, selector );
 171
 172                         // HANDLE: $(expr, $(...))
 173                         } else if ( !context || context.jquery ) {
 174                                 return (context || rootjQuery).find( selector );
 175
 176                         // HANDLE: $(expr, context)
 177                         // (which is just equivalent to: $(context).find(expr)
 178                         } else {
 179                                 return this.constructor( context ).find( selector );
 180                         }
 181
 182                 // HANDLE: $(function)
 183                 // Shortcut for document ready
 184                 } else if ( jQuery.isFunction( selector ) ) {
 185                         return rootjQuery.ready( selector );
 186                 }
 187
 188                 if (selector.selector !== undefined) {
 189                         this.selector = selector.selector;
 190                         this.context = selector.context;
 191                 }
 192
 193                 return jQuery.makeArray( selector, this );
 194         },
 195
 196         // Start with an empty selector
 197         selector: "",
 198
 199         // The current version of jQuery being used
 200         jquery: "@VERSION",
 201
 202         // The default length of a jQuery object is 0
 203         length: 0,
 204
 205         // The number of elements contained in the matched element set
 206         size: function() {
 207                 return this.length;
 208         },
 209
 210         toArray: function() {
 211                 return slice.call( this, 0 );
 212         },
 213
 214         // Get the Nth element in the matched element set OR
 215         // Get the whole matched element set as a clean array
 216         get: function( num ) {
 217                 return num == null ?
 218
 219                         // Return a 'clean' array
 220                         this.toArray() :
 221
 222                         // Return just the object
 223                         ( num < 0 ? this[ this.length + num ] : this[ num ] );
 224         },
 225
 226         // Take an array of elements and push it onto the stack
 227         // (returning the new matched element set)
 228         pushStack: function( elems, name, selector ) {
 229                 // Build a new jQuery matched element set
 230                 var ret = this.constructor();
 231
 232                 if ( jQuery.isArray( elems ) ) {
 233                         push.apply( ret, elems );
 234
 235                 } else {
 236                         jQuery.merge( ret, elems );
 237                 }
 238
 239                 // Add the old object onto the stack (as a reference)
 240                 ret.prevObject = this;
 241
 242                 ret.context = this.context;
 243
 244                 if ( name === "find" ) {
 245                         ret.selector = this.selector + (this.selector ? " " : "") + selector;
 246                 } else if ( name ) {
 247                         ret.selector = this.selector + "." + name + "(" + selector + ")";
 248                 }
 249
 250                 // Return the newly-formed element set
 251                 return ret;
 252         },
 253
 254         // Execute a callback for every element in the matched set.
 255         // (You can seed the arguments with an array of args, but this is
 256         // only used internally.)
 257         each: function( callback, args ) {
 258                 return jQuery.each( this, callback, args );
 259         },
 260
 261         ready: function() {
 262                 // Attach the listeners
 263                 jQuery.bindReady();
 264
 265                 // Change ready & apply
 266                 return ( jQuery.fn.ready = readyList.done ).apply( this , arguments );
 267         },
 268
 269         eq: function( i ) {
 270                 return i === -1 ?
 271                         this.slice( i ) :
 272                         this.slice( i, +i + 1 );
 273         },
 274
 275         first: function() {
 276                 return this.eq( 0 );
 277         },
 278
 279         last: function() {
 280                 return this.eq( -1 );
 281         },
 282
 283         slice: function() {
 284                 return this.pushStack( slice.apply( this, arguments ),
 285                         "slice", slice.call(arguments).join(",") );
 286         },
 287
 288         map: function( callback ) {
 289                 return this.pushStack( jQuery.map(this, function( elem, i ) {
 290                         return callback.call( elem, i, elem );
 291                 }));
 292         },
 293
 294         end: function() {
 295                 return this.prevObject || this.constructor(null);
 296         },
 297
 298         // For internal use only.
 299         // Behaves like an Array's method, not like a jQuery method.
 300         push: push,
 301         sort: [].sort,
 302         splice: [].splice
 303 };
 304
 305 // Give the init function the jQuery prototype for later instantiation
 306 jQuery.fn.init.prototype = jQuery.fn;
 307
 308 jQuery.extend = jQuery.fn.extend = function() {
 309          var options, name, src, copy, copyIsArray, clone,
 310                 target = arguments[0] || {},
 311                 i = 1,
 312                 length = arguments.length,
 313                 deep = false;
 314
 315         // Handle a deep copy situation
 316         if ( typeof target === "boolean" ) {
 317                 deep = target;
 318                 target = arguments[1] || {};
 319                 // skip the boolean and the target
 320                 i = 2;
 321         }
 322
 323         // Handle case when target is a string or something (possible in deep copy)
 324         if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
 325                 target = {};
 326         }
 327
 328         // extend jQuery itself if only one argument is passed
 329         if ( length === i ) {
 330                 target = this;
 331                 --i;
 332         }
 333
 334         for ( ; i < length; i++ ) {
 335                 // Only deal with non-null/undefined values
 336                 if ( (options = arguments[ i ]) != null ) {
 337                         // Extend the base object
 338                         for ( name in options ) {
 339                                 src = target[ name ];
 340                                 copy = options[ name ];
 341
 342                                 // Prevent never-ending loop
 343                                 if ( target === copy ) {
 344                                         continue;
 345                                 }
 346
 347                                 // Recurse if we're merging plain objects or arrays
 348                                 if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
 349                                         if ( copyIsArray ) {
 350                                                 copyIsArray = false;
 351                                                 clone = src && jQuery.isArray(src) ? src : [];
 352
 353                                         } else {
 354                                                 clone = src && jQuery.isPlainObject(src) ? src : {};
 355                                         }
 356
 357                                         // Never move original objects, clone them
 358                                         target[ name ] = jQuery.extend( deep, clone, copy );
 359
 360                                 // Don't bring in undefined values
 361                                 } else if ( copy !== undefined ) {
 362                                         target[ name ] = copy;
 363                                 }
 364                         }
 365                 }
 366         }
 367
 368         // Return the modified object
 369         return target;
 370 };
 371
 372 jQuery.extend({
 373         noConflict: function( deep ) {
 374                 window.$ = _$;
 375
 376                 if ( deep ) {
 377                         window.jQuery = _jQuery;
 378                 }
 379
 380                 return jQuery;
 381         },
 382
 383         // Is the DOM ready to be used? Set to true once it occurs.
 384         isReady: false,
 385
 386         // A counter to track how many items to wait for before
 387         // the ready event fires. See #6781
 388         readyWait: 1,
 389
 390         // Handle when the DOM is ready
 391         ready: function( wait ) {
 392                 // A third-party is pushing the ready event forwards
 393                 if ( wait === true ) {
 394                         jQuery.readyWait--;
 395                 }
 396
 397                 // Make sure that the DOM is not already loaded
 398                 if ( !jQuery.readyWait || (wait !== true && !jQuery.isReady) ) {
 399                         // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
 400                         if ( !document.body ) {
 401                                 return setTimeout( jQuery.ready, 1 );
 402                         }
 403
 404                         // Remember that the DOM is ready
 405                         jQuery.isReady = true;
 406
 407                         // If a normal DOM Ready event fired, decrement, and wait if need be
 408                         if ( wait !== true && --jQuery.readyWait > 0 ) {
 409                                 return;
 410                         }
 411
 412                         // If there are functions bound, to execute
 413                         readyList.fire( document , [ jQuery ] );
 414
 415                         // Trigger any bound ready events
 416                         if ( jQuery.fn.trigger ) {
 417                                 jQuery( document ).trigger( "ready" ).unbind( "ready" );
 418                         }
 419                 }
 420         },
 421
 422         bindReady: function() {
 423                 if ( readyBound ) {
 424                         return;
 425                 }
 426
 427                 readyBound = true;
 428
 429                 // Catch cases where $(document).ready() is called after the
 430                 // browser event has already occurred.
 431                 if ( document.readyState === "complete" ) {
 432                         // Handle it asynchronously to allow scripts the opportunity to delay ready
 433                         return setTimeout( jQuery.ready, 1 );
 434                 }
 435
 436                 // Mozilla, Opera and webkit nightlies currently support this event
 437                 if ( document.addEventListener ) {
 438                         // Use the handy event callback
 439                         document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false );
 440
 441                         // A fallback to window.onload, that will always work
 442                         window.addEventListener( "load", jQuery.ready, false );
 443
 444                 // If IE event model is used
 445                 } else if ( document.attachEvent ) {
 446                         // ensure firing before onload,
 447                         // maybe late but safe also for iframes
 448                         document.attachEvent("onreadystatechange", DOMContentLoaded);
 449
 450                         // A fallback to window.onload, that will always work
 451                         window.attachEvent( "onload", jQuery.ready );
 452
 453                         // If IE and not a frame
 454                         // continually check to see if the document is ready
 455                         var toplevel = false;
 456
 457                         try {
 458                                 toplevel = window.frameElement == null;
 459                         } catch(e) {}
 460
 461                         if ( document.documentElement.doScroll && toplevel ) {
 462                                 doScrollCheck();
 463                         }
 464                 }
 465         },
 466
 467         // See test/unit/core.js for details concerning isFunction.
 468         // Since version 1.3, DOM methods and functions like alert
 469         // aren't supported. They return false on IE (#2968).
 470         isFunction: function( obj ) {
 471                 return jQuery.type(obj) === "function";
 472         },
 473
 474         isArray: Array.isArray || function( obj ) {
 475                 return jQuery.type(obj) === "array";
 476         },
 477
 478         // A crude way of determining if an object is a window
 479         isWindow: function( obj ) {
 480                 return obj && typeof obj === "object" && "setInterval" in obj;
 481         },
 482
 483         isNaN: function( obj ) {
 484                 return obj == null || !rdigit.test( obj ) || isNaN( obj );
 485         },
 486
 487         type: function( obj ) {
 488                 return obj == null ?
 489                         String( obj ) :
 490                         class2type[ toString.call(obj) ] || "object";
 491         },
 492
 493         isPlainObject: function( obj ) {
 494                 // Must be an Object.
 495                 // Because of IE, we also have to check the presence of the constructor property.
 496                 // Make sure that DOM nodes and window objects don't pass through, as well
 497                 if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
 498                         return false;
 499                 }
 500
 501                 // Not own constructor property must be Object
 502                 if ( obj.constructor &&
 503                         !hasOwn.call(obj, "constructor") &&
 504                         !hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
 505                         return false;
 506                 }
 507
 508                 // Own properties are enumerated firstly, so to speed up,
 509                 // if last one is own, then all properties are own.
 510
 511                 var key;
 512                 for ( key in obj ) {}
 513
 514                 return key === undefined || hasOwn.call( obj, key );
 515         },
 516
 517         isEmptyObject: function( obj ) {
 518                 for ( var name in obj ) {
 519                         return false;
 520                 }
 521                 return true;
 522         },
 523
 524         error: function( msg ) {
 525                 throw msg;
 526         },
 527
 528         parseJSON: function( data ) {
 529                 if ( typeof data !== "string" || !data ) {
 530                         return null;
 531                 }
 532
 533                 // Make sure leading/trailing whitespace is removed (IE can't handle it)
 534                 data = jQuery.trim( data );
 535
 536                 // Make sure the incoming data is actual JSON
 537                 // Logic borrowed from http://json.org/json2.js
 538                 if ( rvalidchars.test(data.replace(rvalidescape, "@")
 539                         .replace(rvalidtokens, "]")
 540                         .replace(rvalidbraces, "")) ) {
 541
 542                         // Try to use the native JSON parser first
 543                         return window.JSON && window.JSON.parse ?
 544                                 window.JSON.parse( data ) :
 545                                 (new Function("return " + data))();
 546
 547                 } else {
 548                         jQuery.error( "Invalid JSON: " + data );
 549                 }
 550         },
 551
 552         // Cross-browser xml parsing
 553         // (xml & tmp used internally)
 554         parseXML: function( data , xml , tmp ) {
 555
 556                 if ( window.DOMParser ) { // Standard
 557                         tmp = new DOMParser();
 558                         xml = tmp.parseFromString( data , "text/xml" );
 559                 } else { // IE
 560                         xml = new ActiveXObject( "Microsoft.XMLDOM" );
 561                         xml.async = "false";
 562                         xml.loadXML( data );
 563                 }
 564
 565                 tmp = xml.documentElement;
 566
 567                 if ( ! tmp || ! tmp.nodeName || tmp.nodeName === "parsererror" ) {
 568                         jQuery.error( "Invalid XML: " + data );
 569                 }
 570
 571                 return xml;
 572         },
 573
 574         noop: function() {},
 575
 576         // Evalulates a script in a global context
 577         globalEval: function( data ) {
 578                 if ( data && rnotwhite.test(data) ) {
 579                         // Inspired by code by Andrea Giammarchi
 580                         // http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
 581                         var head = document.getElementsByTagName("head")[0] || document.documentElement,
 582                                 script = document.createElement("script");
 583
 584                         script.type = "text/javascript";
 585
 586                         if ( jQuery.support.scriptEval() ) {
 587                                 script.appendChild( document.createTextNode( data ) );
 588                         } else {
 589                                 script.text = data;
 590                         }
 591
 592                         // Use insertBefore instead of appendChild to circumvent an IE6 bug.
 593                         // This arises when a base node is used (#2709).
 594                         head.insertBefore( script, head.firstChild );
 595                         head.removeChild( script );
 596                 }
 597         },
 598
 599         nodeName: function( elem, name ) {
 600                 return elem.nodeName && elem.nodeName.toUpperCase() === name.toUpperCase();
 601         },
 602
 603         // args is for internal usage only
 604         each: function( object, callback, args ) {
 605                 var name, i = 0,
 606                         length = object.length,
 607                         isObj = length === undefined || jQuery.isFunction(object);
 608
 609                 if ( args ) {
 610                         if ( isObj ) {
 611                                 for ( name in object ) {
 612                                         if ( callback.apply( object[ name ], args ) === false ) {
 613                                                 break;
 614                                         }
 615                                 }
 616                         } else {
 617                                 for ( ; i < length; ) {
 618                                         if ( callback.apply( object[ i++ ], args ) === false ) {
 619                                                 break;
 620                                         }
 621                                 }
 622                         }
 623
 624                 // A special, fast, case for the most common use of each
 625                 } else {
 626                         if ( isObj ) {
 627                                 for ( name in object ) {
 628                                         if ( callback.call( object[ name ], name, object[ name ] ) === false ) {
 629                                                 break;
 630                                         }
 631                                 }
 632                         } else {
 633                                 for ( var value = object[0];
 634                                         i < length && callback.call( value, i, value ) !== false; value = object[++i] ) {}
 635                         }
 636                 }
 637
 638                 return object;
 639         },
 640
 641         // Use native String.trim function wherever possible
 642         trim: trim ?
 643                 function( text ) {
 644                         return text == null ?
 645                                 "" :
 646                                 trim.call( text );
 647                 } :
 648
 649                 // Otherwise use our own trimming functionality
 650                 function( text ) {
 651                         return text == null ?
 652                                 "" :
 653                                 text.toString().replace( trimLeft, "" ).replace( trimRight, "" );
 654                 },
 655
 656         // results is for internal usage only
 657         makeArray: function( array, results ) {
 658                 var ret = results || [];
 659
 660                 if ( array != null ) {
 661                         // The window, strings (and functions) also have 'length'
 662                         // The extra typeof function check is to prevent crashes
 663                         // in Safari 2 (See: #3039)
 664                         // Tweaked logic slightly to handle Blackberry 4.7 RegExp issues #6930
 665                         var type = jQuery.type(array);
 666
 667                         if ( array.length == null || type === "string" || type === "function" || type === "regexp" || jQuery.isWindow( array ) ) {
 668                                 push.call( ret, array );
 669                         } else {
 670                                 jQuery.merge( ret, array );
 671                         }
 672                 }
 673
 674                 return ret;
 675         },
 676
 677         inArray: function( elem, array ) {
 678                 if ( array.indexOf ) {
 679                         return array.indexOf( elem );
 680                 }
 681
 682                 for ( var i = 0, length = array.length; i < length; i++ ) {
 683                         if ( array[ i ] === elem ) {
 684                                 return i;
 685                         }
 686                 }
 687
 688                 return -1;
 689         },
 690
 691         merge: function( first, second ) {
 692                 var i = first.length,
 693                         j = 0;
 694
 695                 if ( typeof second.length === "number" ) {
 696                         for ( var l = second.length; j < l; j++ ) {
 697                                 first[ i++ ] = second[ j ];
 698                         }
 699
 700                 } else {
 701                         while ( second[j] !== undefined ) {
 702                                 first[ i++ ] = second[ j++ ];
 703                         }
 704                 }
 705
 706                 first.length = i;
 707
 708                 return first;
 709         },
 710
 711         grep: function( elems, callback, inv ) {
 712                 var ret = [], retVal;
 713                 inv = !!inv;
 714
 715                 // Go through the array, only saving the items
 716                 // that pass the validator function
 717                 for ( var i = 0, length = elems.length; i < length; i++ ) {
 718                         retVal = !!callback( elems[ i ], i );
 719                         if ( inv !== retVal ) {
 720                                 ret.push( elems[ i ] );
 721                         }
 722                 }
 723
 724                 return ret;
 725         },
 726
 727         // arg is for internal usage only
 728         map: function( elems, callback, arg ) {
 729                 var ret = [], value;
 730
 731                 // Go through the array, translating each of the items to their
 732                 // new value (or values).
 733                 for ( var i = 0, length = elems.length; i < length; i++ ) {
 734                         value = callback( elems[ i ], i, arg );
 735
 736                         if ( value != null ) {
 737                                 ret[ ret.length ] = value;
 738                         }
 739                 }
 740
 741                 // Flatten any nested arrays
 742                 return ret.concat.apply( [], ret );
 743         },
 744
 745         // A global GUID counter for objects
 746         guid: 1,
 747
 748         proxy: function( fn, proxy, thisObject ) {
 749                 if ( arguments.length === 2 ) {
 750                         if ( typeof proxy === "string" ) {
 751                                 thisObject = fn;
 752                                 fn = thisObject[ proxy ];
 753                                 proxy = undefined;
 754
 755                         } else if ( proxy && !jQuery.isFunction( proxy ) ) {
 756                                 thisObject = proxy;
 757                                 proxy = undefined;
 758                         }
 759                 }
 760
 761                 if ( !proxy && fn ) {
 762                         proxy = function() {
 763                                 return fn.apply( thisObject || this, arguments );
 764                         };
 765                 }
 766
 767                 // Set the guid of unique handler to the same of original handler, so it can be removed
 768                 if ( fn ) {
 769                         proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++;
 770                 }
 771
 772                 // So proxy can be declared as an argument
 773                 return proxy;
 774         },
 775
 776         // Mutifunctional method to get and set values to a collection
 777         // The value/s can be optionally by executed if its a function
 778         access: function( elems, key, value, exec, fn, pass ) {
 779                 var length = elems.length;
 780
 781                 // Setting many attributes
 782                 if ( typeof key === "object" ) {
 783                         for ( var k in key ) {
 784                                 jQuery.access( elems, k, key[k], exec, fn, value );
 785                         }
 786                         return elems;
 787                 }
 788
 789                 // Setting one attribute
 790                 if ( value !== undefined ) {
 791                         // Optionally, function values get executed if exec is true
 792                         exec = !pass && exec && jQuery.isFunction(value);
 793
 794                         for ( var i = 0; i < length; i++ ) {
 795                                 fn( elems[i], key, exec ? value.call( elems[i], i, fn( elems[i], key ) ) : value, pass );
 796                         }
 797
 798                         return elems;
 799                 }
 800
 801                 // Getting an attribute
 802                 return length ? fn( elems[0], key ) : undefined;
 803         },
 804
 805         now: function() {
 806                 return (new Date()).getTime();
 807         },
 808
 809         // Create a simple deferred (one callbacks list)
 810         _Deferred: function() {
 811
 812                 var // callbacks list
 813                         callbacks = [],
 814                         // stored [ context , args ]
 815                         fired,
 816                         // to avoid firing when already doing so
 817                         firing,
 818                         // flag to know if the deferred has been cancelled
 819                         cancelled,
 820                         // the deferred itself
 821                         deferred  = {
 822
 823                                 // done( f1, f2, ...)
 824                                 done: function () {
 825
 826                                         if ( ! cancelled ) {
 827
 828                                                 var args = arguments,
 829                                                         i,
 830                                                         length,
 831                                                         elem,
 832                                                         type,
 833                                                         _fired;
 834
 835                                                 if ( fired ) {
 836                                                         _fired = fired;
 837                                                         fired = 0;
 838                                                 }
 839
 840                                                 for ( i = 0, length = args.length ; i < length ; i++ ) {
 841                                                         elem = args[ i ];
 842                                                         type = jQuery.type( elem );
 843                                                         if ( type === "array" ) {
 844                                                                 deferred.done.apply( deferred , elem );
 845                                                         } else if ( type === "function" ) {
 846                                                                 callbacks.push( elem );
 847                                                         }
 848                                                 }
 849
 850                                                 if ( _fired ) {
 851                                                         deferred.fire( _fired[ 0 ] , _fired[ 1 ] );
 852                                                 }
 853                                         }
 854
 855                                         return this;
 856                                 },
 857
 858                                 // resolve with given context and args
 859                                 fire: function( context , args ) {
 860                                         if ( ! cancelled && ! fired && ! firing ) {
 861
 862                                                 firing = 1;
 863
 864                                                 try {
 865                                                         while( callbacks[ 0 ] ) {
 866                                                                 callbacks.shift().apply( context , args );
 867                                                         }
 868                                                 }
 869                                                 finally {
 870                                                         fired = [ context , args ];
 871                                                         firing = 0;
 872                                                 }
 873                                         }
 874                                         return this;
 875                                 },
 876
 877                                 // resolve with this as context and given arguments
 878                                 resolve: function() {
 879                                         deferred.fire( jQuery.isFunction( this.promise ) ? this.promise() : this , arguments );
 880                                         return this;
 881                                 },
 882
 883                                 // Has this deferred been resolved?
 884                                 isResolved: function() {
 885                                         return !!( firing || fired );
 886                                 },
 887
 888                                 // Cancel
 889                                 cancel: function() {
 890                                         cancelled = 1;
 891                                         callbacks = [];
 892                                         return this;
 893                                 }
 894                         };
 895
 896                 return deferred;
 897         },
 898
 899         // Full fledged deferred (two callbacks list)
 900         // Typical success/error system
 901         Deferred: function( func ) {
 902
 903                 var deferred = jQuery._Deferred(),
 904                         failDeferred = jQuery._Deferred(),
 905                         promise;
 906
 907                 // Add errorDeferred methods, then and promise
 908                 jQuery.extend( deferred , {
 909
 910                         then: function( doneCallbacks , failCallbacks ) {
 911                                 deferred.done( doneCallbacks ).fail( failCallbacks );
 912                                 return this;
 913                         },
 914                         fail: failDeferred.done,
 915                         fireReject: failDeferred.fire,
 916                         reject: failDeferred.resolve,
 917                         isRejected: failDeferred.isResolved,
 918                         // Get a promise for this deferred
 919                         // If obj is provided, the promise aspect is added to the object
 920                         // (i is used internally)
 921                         promise: function( obj , i ) {
 922                                 if ( obj == null ) {
 923                                         if ( promise ) {
 924                                                 return promise;
 925                                         }
 926                                         promise = obj = {};
 927                                 }
 928                                 i = promiseMethods.length;
 929                                 while( i-- ) {
 930                                         obj[ promiseMethods[ i ] ] = deferred[ promiseMethods[ i ] ];
 931                                 }
 932                                 return obj;
 933                         }
 934
 935                 } );
 936
 937                 // Make sure only one callback list will be used
 938                 deferred.then( failDeferred.cancel , deferred.cancel );
 939
 940                 // Unexpose cancel
 941                 delete deferred.cancel;
 942
 943                 // Call given func if any
 944                 if ( func ) {
 945                         func.call( deferred , deferred );
 946                 }
 947
 948                 return deferred;
 949         },
 950
 951         // Deferred helper
 952         when: function( object ) {
 953                 var args = arguments,
 954                         length = args.length,
 955                         deferred = length <= 1 && object && jQuery.isFunction( object.promise ) ?
 956                                 object :
 957                                 jQuery.Deferred(),
 958                         promise = deferred.promise(),
 959                         resolveArray;
 960
 961                 if ( length > 1 ) {
 962                         resolveArray = new Array( length );
 963                         jQuery.each( args, function( index, element, args ) {
 964                                 jQuery.when( element ).done( function( value ) {
 965                                         args = arguments;
 966                                         resolveArray[ index ] = args.length > 1 ? slice.call( args , 0 ) : value;
 967                                         if( ! --length ) {
 968                                                 deferred.fire( promise, resolveArray );
 969                                         }
 970                                 }).fail( function() {
 971                                         deferred.fireReject( promise, arguments );
 972                                 });
 973                                 return !deferred.isRejected();
 974                         });
 975                 } else if ( deferred !== object ) {
 976                         deferred.resolve( object );
 977                 }
 978                 return promise;
 979         },
 980
 981         // Use of jQuery.browser is frowned upon.
 982         // More details: http://docs.jquery.com/Utilities/jQuery.browser
 983         uaMatch: function( ua ) {
 984                 ua = ua.toLowerCase();
 985
 986                 var match = rwebkit.exec( ua ) ||
 987                         ropera.exec( ua ) ||
 988                         rmsie.exec( ua ) ||
 989                         ua.indexOf("compatible") < 0 && rmozilla.exec( ua ) ||
 990                         [];
 991
 992                 return { browser: match[1] || "", version: match[2] || "0" };
 993         },
 994
 995         subclass: function(){
 996                 function jQuerySubclass( selector, context ) {
 997                         return new jQuerySubclass.fn.init( selector, context );
 998                 }
 999                 jQuerySubclass.superclass = this;
1000                 jQuerySubclass.fn = jQuerySubclass.prototype = this();
1001                 jQuerySubclass.fn.constructor = jQuerySubclass;
1002                 jQuerySubclass.subclass = this.subclass;
1003                 jQuerySubclass.fn.init = function init( selector, context ) {
1004                         if (context && context instanceof jQuery && !(context instanceof jQuerySubclass)){
1005                                 context = jQuerySubclass(context);
1006                         }
1007                         return jQuery.fn.init.call( this, selector, context, rootjQuerySubclass );
1008                 };
1009                 jQuerySubclass.fn.init.prototype = jQuerySubclass.fn;
1010                 var rootjQuerySubclass = jQuerySubclass(document);
1011                 return jQuerySubclass;
1012         },
1013
1014         browser: {}
1015 });
1016
1017 // Create readyList deferred
1018 readyList = jQuery._Deferred();
1019
1020 // Populate the class2type map
1021 jQuery.each("Boolean Number String Function Array Date RegExp Object".split(" "), function(i, name) {
1022         class2type[ "[object " + name + "]" ] = name.toLowerCase();
1023 });
1024
1025 browserMatch = jQuery.uaMatch( userAgent );
1026 if ( browserMatch.browser ) {
1027         jQuery.browser[ browserMatch.browser ] = true;
1028         jQuery.browser.version = browserMatch.version;
1029 }
1030
1031 // Deprecated, use jQuery.browser.webkit instead
1032 if ( jQuery.browser.webkit ) {
1033         jQuery.browser.safari = true;
1034 }
1035
1036 if ( indexOf ) {
1037         jQuery.inArray = function( elem, array ) {
1038                 return indexOf.call( array, elem );
1039         };
1040 }
1041
1042 // Verify that \s matches non-breaking spaces
1043 // (IE fails on this test)
1044 if ( !rwhite.test( "\xA0" ) ) {
1045         trimLeft = /^[\s\xA0]+/;
1046         trimRight = /[\s\xA0]+$/;
1047 }
1048
1049 // All jQuery objects should point back to these
1050 rootjQuery = jQuery(document);
1051
1052 // Cleanup functions for the document ready method
1053 if ( document.addEventListener ) {
1054         DOMContentLoaded = function() {
1055                 document.removeEventListener( "DOMContentLoaded", DOMContentLoaded, false );
1056                 jQuery.ready();
1057         };
1058
1059 } else if ( document.attachEvent ) {
1060         DOMContentLoaded = function() {
1061                 // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
1062                 if ( document.readyState === "complete" ) {
1063                         document.detachEvent( "onreadystatechange", DOMContentLoaded );
1064                         jQuery.ready();
1065                 }
1066         };
1067 }
1068
1069 // The DOM ready check for Internet Explorer
1070 function doScrollCheck() {
1071         if ( jQuery.isReady ) {
1072                 return;
1073         }
1074
1075         try {
1076                 // If IE is used, use the trick by Diego Perini
1077                 // http://javascript.nwbox.com/IEContentLoaded/
1078                 document.documentElement.doScroll("left");
1079         } catch(e) {
1080                 setTimeout( doScrollCheck, 1 );
1081                 return;
1082         }
1083
1084         // and execute any waiting functions
1085         jQuery.ready();
1086 }
1087
1088 // Expose jQuery to the global object
1089 return (window.jQuery = window.$ = jQuery);
1090
1091 })();