src/manipulation.js

   1 var rinlinejQuery = / jQuery\d+="(?:\d+|null)"/g,
   2         rleadingWhitespace = /^\s+/,
   3         rxhtmlTag = /(<([\w:]+)[^>]*?)\/>/g,
   4         rselfClosing = /^(?:abbr|br|col|img|input|link|meta|param|hr|area|embed)$/i,
   5         rtagName = /<([\w:]+)/,
   6         rtbody = /<tbody/i,
   7         rhtml = /<|&\w+;/,
   8         fcloseTag = function(all, front, tag){
   9                 return rselfClosing.test(tag) ?
  10                         all :
  11                         front + "></" + tag + ">";
  12         },
  13         wrapMap = {
  14                 option: [ 1, "<select multiple='multiple'>", "</select>" ],
  15                 legend: [ 1, "<fieldset>", "</fieldset>" ],
  16                 thead: [ 1, "<table>", "</table>" ],
  17                 tr: [ 2, "<table><tbody>", "</tbody></table>" ],
  18                 td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
  19                 col: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],
  20                 area: [ 1, "<map>", "</map>" ],
  21                 _default: [ 0, "", "" ]
  22         };
  23
  24 wrapMap.optgroup = wrapMap.option;
  25 wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
  26 wrapMap.th = wrapMap.td;
  27
  28 // IE can't serialize <link> and <script> tags normally
  29 if ( !jQuery.support.htmlSerialize ) {
  30         wrapMap._default = [ 1, "div<div>", "</div>" ];
  31 }
  32
  33 jQuery.fn.extend({
  34         text: function( text ) {
  35                 if ( typeof text !== "object" && text !== undefined ) {
  36                         return this.empty().append( (this[0] && this[0].ownerDocument || document).createTextNode( text ) );
  37                 }
  38
  39                 var ret = "";
  40
  41                 jQuery.each( this, function() {
  42                         // Get the text from text nodes and CDATA nodes
  43                         if ( this.nodeType === 3 || this.nodeType === 4 ) {
  44                                 ret += this.nodeValue;
  45
  46                         // Traverse everything else, except comment nodes
  47                         } else if ( this.nodeType !== 8 ) {
  48                                 ret += jQuery.fn.text.call( this.childNodes );
  49                         }
  50                 });
  51
  52                 return ret;
  53         },
  54
  55         wrapAll: function( html ) {
  56                 if ( jQuery.isFunction( html ) ) {
  57                         return this.each(function() {
  58                                 jQuery(this).wrapAll( html.apply(this, arguments) );
  59                         });
  60                 }
  61
  62                 if ( this[0] ) {
  63                         // The elements to wrap the target around
  64                         var wrap = jQuery( html, this[0].ownerDocument ).eq(0).clone();
  65
  66                         if ( this[0].parentNode ) {
  67                                 wrap.insertBefore( this[0] );
  68                         }
  69
  70                         wrap.map(function(){
  71                                 var elem = this;
  72
  73                                 while ( elem.firstChild && elem.firstChild.nodeType === 1 ) {
  74                                         elem = elem.firstChild;
  75                                 }
  76
  77                                 return elem;
  78                         }).append(this);
  79                 }
  80
  81                 return this;
  82         },
  83
  84         wrapInner: function( html ) {
  85                 return this.each(function(){
  86                         jQuery( this ).contents().wrapAll( html );
  87                 });
  88         },
  89
  90         wrap: function( html ) {
  91                 return this.each(function(){
  92                         jQuery( this ).wrapAll( html );
  93                 });
  94         },
  95
  96         unwrap: function() {
  97                 return this.parent().each(function(){
  98                         if ( !jQuery.nodeName( this, "body" ) ) {
  99                                 jQuery( this ).replaceWith( this.childNodes );
 100                         }
 101                 }).end();
 102         },
 103
 104         append: function() {
 105                 return this.domManip(arguments, true, function(elem){
 106                         if ( this.nodeType === 1 ) {
 107                                 this.appendChild( elem );
 108                         }
 109                 });
 110         },
 111
 112         prepend: function() {
 113                 return this.domManip(arguments, true, function(elem){
 114                         if ( this.nodeType === 1 ) {
 115                                 this.insertBefore( elem, this.firstChild );
 116                         }
 117                 });
 118         },
 119
 120         before: function() {
 121                 if ( this[0] && this[0].parentNode ) {
 122                         return this.domManip(arguments, false, function(elem){
 123                                 this.parentNode.insertBefore( elem, this );
 124                         });
 125                 } else if ( arguments.length ) {
 126                         var set = jQuery(arguments[0]);
 127                         set.push.apply( set, this.toArray() );
 128                         return this.pushStack( set, "before", arguments );
 129                 }
 130         },
 131
 132         after: function() {
 133                 if ( this[0] && this[0].parentNode ) {
 134                         return this.domManip(arguments, false, function(elem){
 135                                 this.parentNode.insertBefore( elem, this.nextSibling );
 136                         });
 137                 } else if ( arguments.length ) {
 138                         var set = this.pushStack( this, "after", arguments );
 139                         set.push.apply( set, jQuery(arguments[0]).toArray() );
 140                         return set;
 141                 }
 142         },
 143
 144         clone: function( events ) {
 145                 // Do the clone
 146                 var ret = this.map(function(){
 147                         if ( !jQuery.support.noCloneEvent && !jQuery.isXMLDoc(this) ) {
 148                                 // IE copies events bound via attachEvent when
 149                                 // using cloneNode. Calling detachEvent on the
 150                                 // clone will also remove the events from the orignal
 151                                 // In order to get around this, we use innerHTML.
 152                                 // Unfortunately, this means some modifications to
 153                                 // attributes in IE that are actually only stored
 154                                 // as properties will not be copied (such as the
 155                                 // the name attribute on an input).
 156                                 var html = this.outerHTML, ownerDocument = this.ownerDocument;
 157                                 if ( !html ) {
 158                                         var div = ownerDocument.createElement("div");
 159                                         div.appendChild( this.cloneNode(true) );
 160                                         html = div.innerHTML;
 161                                 }
 162
 163                                 return jQuery.clean([html.replace(rinlinejQuery, "")
 164                                         .replace(rleadingWhitespace, "")], ownerDocument)[0];
 165                         } else {
 166                                 return this.cloneNode(true);
 167                         }
 168                 });
 169
 170                 // Copy the events from the original to the clone
 171                 if ( events === true ) {
 172                         cloneCopyEvent( this, ret );
 173                         cloneCopyEvent( this.find("*"), ret.find("*") );
 174                 }
 175
 176                 // Return the cloned set
 177                 return ret;
 178         },
 179
 180         html: function( value ) {
 181                 if ( value === undefined ) {
 182                         return this[0] ?
 183                                 this[0].innerHTML.replace(rinlinejQuery, "") :
 184                                 null;
 185
 186                 // See if we can take a shortcut and just use innerHTML
 187                 } else if ( typeof value === "string" && !/<script/i.test( value ) &&
 188                         (jQuery.support.leadingWhitespace || !rleadingWhitespace.test( value )) &&
 189                         !wrapMap[ (rtagName.exec( value ) || ["", ""])[1].toLowerCase() ] ) {
 190
 191                         try {
 192                                 for ( var i = 0, l = this.length; i < l; i++ ) {
 193                                         // Remove element nodes and prevent memory leaks
 194                                         if ( this[i].nodeType === 1 ) {
 195                                                 cleanData( this[i].getElementsByTagName("*") );
 196                                                 this[i].innerHTML = value;
 197                                         }
 198                                 }
 199
 200                         // If using innerHTML throws an exception, use the fallback method
 201                         } catch(e) {
 202                                 this.empty().append( value );
 203                         }
 204
 205                 } else {
 206                         this.empty().append( value );
 207                 }
 208
 209                 return this;
 210         },
 211
 212         replaceWith: function( value ) {
 213                 if ( this[0] && this[0].parentNode ) {
 214                         return this.each(function(){
 215                                 var next = this.nextSibling, parent = this.parentNode;
 216
 217                                 jQuery(this).remove();
 218
 219                                 if ( next ) {
 220                                         jQuery(next).before( value );
 221                                 } else {
 222                                         jQuery(parent).append( value );
 223                                 }
 224                         });
 225                 } else {
 226                         return this.pushStack( jQuery(jQuery.isFunction(value) ? value() : value), "replaceWith", value );
 227                 }
 228         },
 229
 230         detach: function( selector ) {
 231                 return this.remove( selector, true );
 232         },
 233
 234         domManip: function( args, table, callback ) {
 235                 var results, first, value = args[0], scripts = [];
 236
 237                 if ( jQuery.isFunction(value) ) {
 238                         return this.each(function() {
 239                                 args[0] = value.call(this);
 240                                 return jQuery(this).domManip( args, table, callback );
 241                         });
 242                 }
 243
 244                 if ( this[0] ) {
 245                         // If we're in a fragment, just use that instead of building a new one
 246                         if ( args[0] && args[0].parentNode && args[0].parentNode.nodeType === 11 ) {
 247                                 results = { fragment: args[0].parentNode };
 248                         } else {
 249                                 results = buildFragment( args, this, scripts );
 250                         }
 251
 252                         first = results.fragment.firstChild;
 253
 254                         if ( first ) {
 255                                 table = table && jQuery.nodeName( first, "tr" );
 256
 257                                 for ( var i = 0, l = this.length; i < l; i++ ) {
 258                                         callback.call(
 259                                                 table ?
 260                                                         root(this[i], first) :
 261                                                         this[i],
 262                                                 results.cacheable || this.length > 1 || i > 0 ?
 263                                                         results.fragment.cloneNode(true) :
 264                                                         results.fragment
 265                                         );
 266                                 }
 267                         }
 268
 269                         if ( scripts ) {
 270                                 jQuery.each( scripts, evalScript );
 271                         }
 272                 }
 273
 274                 return this;
 275
 276                 function root( elem, cur ) {
 277                         return jQuery.nodeName(elem, "table") ?
 278                                 (elem.getElementsByTagName("tbody")[0] ||
 279                                 elem.appendChild(elem.ownerDocument.createElement("tbody"))) :
 280                                 elem;
 281                 }
 282         }
 283 });
 284
 285 function cloneCopyEvent(orig, ret) {
 286         var i = 0;
 287
 288         ret.each(function(){
 289                 if ( this.nodeName !== orig[i].nodeName ) {
 290                         return;
 291                 }
 292
 293                 var events = jQuery.data( orig[i], "events" );
 294
 295                 for ( var type in events ) {
 296                         for ( var handler in events[ type ] ) {
 297                                 jQuery.event.add( this, type, events[ type ][ handler ], events[ type ][ handler ].data );
 298                         }
 299                 }
 300         });
 301 }
 302
 303 function buildFragment(args, nodes, scripts){
 304         var fragment, cacheable, cached, cacheresults, doc;
 305
 306         if ( args.length === 1 && typeof args[0] === "string" && args[0].length < 512 && args[0].indexOf("<option") < 0 ) {
 307                 cacheable = true;
 308                 cacheresults = jQuery.fragments[ args[0] ];
 309                 if ( cacheresults ) {
 310                         if ( cacheresults !== 1 ) {
 311                                 fragment = cacheresults;
 312                         }
 313                         cached = true;
 314                 }
 315         }
 316
 317         if ( !fragment ) {
 318                 doc = (nodes && nodes[0] ? nodes[0].ownerDocument || nodes[0] : document);
 319                 fragment = doc.createDocumentFragment();
 320                 jQuery.clean( args, doc, fragment, scripts );
 321         }
 322
 323         if ( cacheable ) {
 324                 jQuery.fragments[ args[0] ] = cacheresults ? fragment : 1;
 325         }
 326
 327         return { fragment: fragment, cacheable: cacheable };
 328 }
 329
 330 jQuery.fragments = {};
 331
 332 jQuery.each({
 333         appendTo: "append",
 334         prependTo: "prepend",
 335         insertBefore: "before",
 336         insertAfter: "after",
 337         replaceAll: "replaceWith"
 338 }, function(name, original){
 339         jQuery.fn[ name ] = function( selector ) {
 340                 var ret = [], insert = jQuery( selector );
 341
 342                 for ( var i = 0, l = insert.length; i < l; i++ ) {
 343                         var elems = (i > 0 ? this.clone(true) : this).get();
 344                         jQuery.fn[ original ].apply( jQuery(insert[i]), elems );
 345                         ret = ret.concat( elems );
 346                 }
 347                 return this.pushStack( ret, name, insert.selector );
 348         };
 349 });
 350
 351 jQuery.each({
 352         // keepData is for internal use only--do not document
 353         remove: function( selector, keepData ) {
 354                 if ( !selector || jQuery.filter( selector, [ this ] ).length ) {
 355                         if ( !keepData && this.nodeType === 1 ) {
 356                                 cleanData( this.getElementsByTagName("*") );
 357                                 cleanData( [ this ] );
 358                         }
 359
 360                         if ( this.parentNode ) {
 361                                  this.parentNode.removeChild( this );
 362                         }
 363                 }
 364         },
 365
 366         empty: function() {
 367                 // Remove element nodes and prevent memory leaks
 368                 if ( this.nodeType === 1 ) {
 369                         cleanData( this.getElementsByTagName("*") );
 370                 }
 371
 372                 // Remove any remaining nodes
 373                 while ( this.firstChild ) {
 374                         this.removeChild( this.firstChild );
 375                 }
 376         }
 377 }, function(name, fn){
 378         jQuery.fn[ name ] = function(){
 379                 return this.each( fn, arguments );
 380         };
 381 });
 382
 383 jQuery.extend({
 384         clean: function( elems, context, fragment, scripts ) {
 385                 context = context || document;
 386
 387                 // !context.createElement fails in IE with an error but returns typeof 'object'
 388                 if ( typeof context.createElement === "undefined" ) {
 389                         context = context.ownerDocument || context[0] && context[0].ownerDocument || document;
 390                 }
 391
 392                 var ret = [];
 393
 394                 jQuery.each(elems, function(i, elem){
 395                         if ( typeof elem === "number" ) {
 396                                 elem += '';
 397                         }
 398
 399                         if ( !elem ) { return; }
 400
 401                         // Convert html string into DOM nodes
 402                         if ( typeof elem === "string" && !rhtml.test( elem ) ) {
 403                                 elem = context.createTextNode( elem );
 404
 405                         } else if ( typeof elem === "string" ) {
 406                                 // Fix "XHTML"-style tags in all browsers
 407                                 elem = elem.replace(rxhtmlTag, fcloseTag);
 408
 409                                 // Trim whitespace, otherwise indexOf won't work as expected
 410                                 var tag = (rtagName.exec( elem ) || ["", ""])[1].toLowerCase(),
 411                                         wrap = wrapMap[ tag ] || wrapMap._default,
 412                                         depth = wrap[0],
 413                                         div = context.createElement("div");
 414
 415                                 // Go to html and back, then peel off extra wrappers
 416                                 div.innerHTML = wrap[1] + elem + wrap[2];
 417
 418                                 // Move to the right depth
 419                                 while ( depth-- ) {
 420                                         div = div.lastChild;
 421                                 }
 422
 423                                 // Remove IE's autoinserted <tbody> from table fragments
 424                                 if ( !jQuery.support.tbody ) {
 425
 426                                         // String was a <table>, *may* have spurious <tbody>
 427                                         var hasBody = rtbody.test(elem),
 428                                                 tbody = tag === "table" && !hasBody ?
 429                                                         div.firstChild && div.firstChild.childNodes :
 430
 431                                                         // String was a bare <thead> or <tfoot>
 432                                                         wrap[1] == "<table>" && !hasBody ?
 433                                                                 div.childNodes :
 434                                                                 [];
 435
 436                                         for ( var j = tbody.length - 1; j >= 0 ; --j ) {
 437                                                 if ( jQuery.nodeName( tbody[ j ], "tbody" ) && !tbody[ j ].childNodes.length ) {
 438                                                         tbody[ j ].parentNode.removeChild( tbody[ j ] );
 439                                                 }
 440                                         }
 441
 442                                 }
 443
 444                                 // IE completely kills leading whitespace when innerHTML is used
 445                                 if ( !jQuery.support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {
 446                                         div.insertBefore( context.createTextNode( rleadingWhitespace.exec(elem)[0] ), div.firstChild );
 447                                 }
 448
 449                                 elem = jQuery.makeArray( div.childNodes );
 450                         }
 451
 452                         if ( elem.nodeType ) {
 453                                 ret.push( elem );
 454                         } else {
 455                                 ret = jQuery.merge( ret, elem );
 456                         }
 457
 458                 });
 459
 460                 if ( fragment ) {
 461                         for ( var i = 0; ret[i]; i++ ) {
 462                                 if ( scripts && jQuery.nodeName( ret[i], "script" ) && (!ret[i].type || ret[i].type.toLowerCase() === "text/javascript") ) {
 463                                         scripts.push( ret[i].parentNode ? ret[i].parentNode.removeChild( ret[i] ) : ret[i] );
 464                                 } else {
 465                                         if ( ret[i].nodeType === 1 ) {
 466                                                 ret.splice.apply( ret, [i + 1, 0].concat(jQuery.makeArray(ret[i].getElementsByTagName("script"))) );
 467                                         }
 468                                         fragment.appendChild( ret[i] );
 469                                 }
 470                         }
 471                 }
 472
 473                 return ret;
 474         }
 475 });
 476
 477 function cleanData( elems ) {
 478         for ( var i = 0, elem, id; (elem = elems[i]) != null; i++ ) {
 479                 if ( (id = elem[expando]) ) {
 480                         delete jQuery.cache[ id ];
 481                 }
 482         }
 483 }