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