_source/core/dom/element.js

   1 /*\r
   2 Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.\r
   3 For licensing, see LICENSE.html or http://ckeditor.com/license\r
   4 */\r
   5 \r
   6 /**\r
   7  * @fileOverview Defines the {@link CKEDITOR.dom.element} class, which\r
   8  *              represents a DOM element.\r
   9  */\r
  10 \r
  11 /**\r
  12  * Represents a DOM element.\r
  13  * @constructor\r
  14  * @augments CKEDITOR.dom.node\r
  15  * @param {Object|String} element A native DOM element or the element name for\r
  16  *              new elements.\r
  17  * @param {CKEDITOR.dom.document} [ownerDocument] The document that will contain\r
  18  *              the element in case of element creation.\r
  19  * @example\r
  20  * // Create a new &lt;span&gt; element.\r
  21  * var element = new CKEDITOR.dom.element( 'span' );\r
  22  * @example\r
  23  * // Create an element based on a native DOM element.\r
  24  * var element = new CKEDITOR.dom.element( document.getElementById( 'myId' ) );\r
  25  */\r
  26 CKEDITOR.dom.element = function( element, ownerDocument )\r
  27 {\r
  28         if ( typeof element == 'string' )\r
  29                 element = ( ownerDocument ? ownerDocument.$ : document ).createElement( element );\r
  30 \r
  31         // Call the base constructor (we must not call CKEDITOR.dom.node).\r
  32         CKEDITOR.dom.domObject.call( this, element );\r
  33 };\r
  34 \r
  35 // PACKAGER_RENAME( CKEDITOR.dom.element )\r
  36 \r
  37 /**\r
  38  * The the {@link CKEDITOR.dom.element} representing and element. If the\r
  39  * element is a native DOM element, it will be transformed into a valid\r
  40  * CKEDITOR.dom.element object.\r
  41  * @returns {CKEDITOR.dom.element} The transformed element.\r
  42  * @example\r
  43  * var element = new CKEDITOR.dom.element( 'span' );\r
  44  * alert( element == <b>CKEDITOR.dom.element.get( element )</b> );  "true"\r
  45  * @example\r
  46  * var element = document.getElementById( 'myElement' );\r
  47  * alert( <b>CKEDITOR.dom.element.get( element )</b>.getName() );  e.g. "p"\r
  48  */\r
  49 CKEDITOR.dom.element.get = function( element )\r
  50 {\r
  51         return element && ( element.$ ? element : new CKEDITOR.dom.element( element ) );\r
  52 };\r
  53 \r
  54 CKEDITOR.dom.element.prototype = new CKEDITOR.dom.node();\r
  55 \r
  56 /**\r
  57  * Creates an instance of the {@link CKEDITOR.dom.element} class based on the\r
  58  * HTML representation of an element.\r
  59  * @param {String} html The element HTML. It should define only one element in\r
  60  *              the "root" level. The "root" element can have child nodes, but not\r
  61  *              siblings.\r
  62  * @returns {CKEDITOR.dom.element} The element instance.\r
  63  * @example\r
  64  * var element = <b>CKEDITOR.dom.element.createFromHtml( '&lt;strong class="anyclass"&gt;My element&lt;/strong&gt;' )</b>;\r
  65  * alert( element.getName() );  // "strong"\r
  66  */\r
  67 CKEDITOR.dom.element.createFromHtml = function( html, ownerDocument )\r
  68 {\r
  69         var temp = new CKEDITOR.dom.element( 'div', ownerDocument );\r
  70         temp.setHtml( html );\r
  71 \r
  72         // When returning the node, remove it from its parent to detach it.\r
  73         return temp.getFirst().remove();\r
  74 };\r
  75 \r
  76 CKEDITOR.dom.element.setMarker = function( database, element, name, value )\r
  77 {\r
  78         var id = element.getCustomData( 'list_marker_id' ) ||\r
  79                         ( element.setCustomData( 'list_marker_id', CKEDITOR.tools.getNextNumber() ).getCustomData( 'list_marker_id' ) ),\r
  80                 markerNames = element.getCustomData( 'list_marker_names' ) ||\r
  81                         ( element.setCustomData( 'list_marker_names', {} ).getCustomData( 'list_marker_names' ) );\r
  82         database[id] = element;\r
  83         markerNames[name] = 1;\r
  84 \r
  85         return element.setCustomData( name, value );\r
  86 };\r
  87 \r
  88 CKEDITOR.dom.element.clearAllMarkers = function( database )\r
  89 {\r
  90         for ( var i in database )\r
  91                 CKEDITOR.dom.element.clearMarkers( database, database[i], true );\r
  92 };\r
  93 \r
  94 CKEDITOR.dom.element.clearMarkers = function( database, element, removeFromDatabase )\r
  95 {\r
  96         var names = element.getCustomData( 'list_marker_names' ),\r
  97                 id = element.getCustomData( 'list_marker_id' );\r
  98         for ( var i in names )\r
  99                 element.removeCustomData( i );\r
 100         element.removeCustomData( 'list_marker_names' );\r
 101         if ( removeFromDatabase )\r
 102         {\r
 103                 element.removeCustomData( 'list_marker_id' );\r
 104                 delete database[id];\r
 105         }\r
 106 };\r
 107 \r
 108 CKEDITOR.tools.extend( CKEDITOR.dom.element.prototype,\r
 109         /** @lends CKEDITOR.dom.element.prototype */\r
 110         {\r
 111                 /**\r
 112                  * The node type. This is a constant value set to\r
 113                  * {@link CKEDITOR.NODE_ELEMENT}.\r
 114                  * @type Number\r
 115                  * @example\r
 116                  */\r
 117                 type : CKEDITOR.NODE_ELEMENT,\r
 118 \r
 119                 /**\r
 120                  * Adds a CSS class to the element. It appends the class to the\r
 121                  * already existing names.\r
 122                  * @param {String} className The name of the class to be added.\r
 123                  * @example\r
 124                  * var element = new CKEDITOR.dom.element( 'div' );\r
 125                  * element.addClass( 'classA' );  // &lt;div class="classA"&gt;\r
 126                  * element.addClass( 'classB' );  // &lt;div class="classA classB"&gt;\r
 127                  * element.addClass( 'classA' );  // &lt;div class="classA classB"&gt;\r
 128                  */\r
 129                 addClass : function( className )\r
 130                 {\r
 131                         var c = this.$.className;\r
 132                         if ( c )\r
 133                         {\r
 134                                 var regex = new RegExp( '(?:^|\\s)' + className + '(?:\\s|$)', '' );\r
 135                                 if ( !regex.test( c ) )\r
 136                                         c += ' ' + className;\r
 137                         }\r
 138                         this.$.className = c || className;\r
 139                 },\r
 140 \r
 141                 /**\r
 142                  * Removes a CSS class name from the elements classes. Other classes\r
 143                  * remain untouched.\r
 144                  * @param {String} className The name of the class to remove.\r
 145                  * @example\r
 146                  * var element = new CKEDITOR.dom.element( 'div' );\r
 147                  * element.addClass( 'classA' );  // &lt;div class="classA"&gt;\r
 148                  * element.addClass( 'classB' );  // &lt;div class="classA classB"&gt;\r
 149                  * element.removeClass( 'classA' );  // &lt;div class="classB"&gt;\r
 150                  * element.removeClass( 'classB' );  // &lt;div&gt;\r
 151                  */\r
 152                 removeClass : function( className )\r
 153                 {\r
 154                         var c = this.getAttribute( 'class' );\r
 155                         if ( c )\r
 156                         {\r
 157                                 var regex = new RegExp( '(?:^|\\s+)' + className + '(?=\\s|$)', 'i' );\r
 158                                 if ( regex.test( c ) )\r
 159                                 {\r
 160                                         c = c.replace( regex, '' ).replace( /^\s+/, '' );\r
 161 \r
 162                                         if ( c )\r
 163                                                 this.setAttribute( 'class', c );\r
 164                                         else\r
 165                                                 this.removeAttribute( 'class' );\r
 166                                 }\r
 167                         }\r
 168                 },\r
 169 \r
 170                 hasClass : function( className )\r
 171                 {\r
 172                         var regex = new RegExp( '(?:^|\\s+)' + className + '(?=\\s|$)', '' );\r
 173                         return regex.test( this.getAttribute('class') );\r
 174                 },\r
 175 \r
 176                 /**\r
 177                  * Append a node as a child of this element.\r
 178                  * @param {CKEDITOR.dom.node|String} node The node or element name to be\r
 179                  *              appended.\r
 180                  * @param {Boolean} [toStart] Indicates that the element is to be\r
 181                  *              appended at the start.\r
 182                  * @returns {CKEDITOR.dom.node} The appended node.\r
 183                  * @example\r
 184                  * var p = new CKEDITOR.dom.element( 'p' );\r
 185                  *\r
 186                  * var strong = new CKEDITOR.dom.element( 'strong' );\r
 187                  * <b>p.append( strong );</b>\r
 188                  *\r
 189                  * var em = <b>p.append( 'em' );</b>\r
 190                  *\r
 191                  * // result: "&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;"\r
 192                  */\r
 193                 append : function( node, toStart )\r
 194                 {\r
 195                         if ( typeof node == 'string' )\r
 196                                 node = this.getDocument().createElement( node );\r
 197 \r
 198                         if ( toStart )\r
 199                                 this.$.insertBefore( node.$, this.$.firstChild );\r
 200                         else\r
 201                                 this.$.appendChild( node.$ );\r
 202 \r
 203                         return node;\r
 204                 },\r
 205 \r
 206                 appendHtml : function( html )\r
 207                 {\r
 208                         if ( !this.$.childNodes.length )\r
 209                                 this.setHtml( html );\r
 210                         else\r
 211                         {\r
 212                                 var temp = new CKEDITOR.dom.element( 'div', this.getDocument() );\r
 213                                 temp.setHtml( html );\r
 214                                 temp.moveChildren( this );\r
 215                         }\r
 216                 },\r
 217 \r
 218                 /**\r
 219                  * Append text to this element.\r
 220                  * @param {String} text The text to be appended.\r
 221                  * @returns {CKEDITOR.dom.node} The appended node.\r
 222                  * @example\r
 223                  * var p = new CKEDITOR.dom.element( 'p' );\r
 224                  * p.appendText( 'This is' );\r
 225                  * p.appendText( ' some text' );\r
 226                  *\r
 227                  * // result: "&lt;p&gt;This is some text&lt;/p&gt;"\r
 228                  */\r
 229                 appendText : function( text )\r
 230                 {\r
 231                         if ( this.$.text != undefined )\r
 232                                 this.$.text += text;\r
 233                         else\r
 234                                 this.append( new CKEDITOR.dom.text( text ) );\r
 235                 },\r
 236 \r
 237                 appendBogus : function()\r
 238                 {\r
 239                         var lastChild = this.getLast() ;\r
 240 \r
 241                         // Ignore empty/spaces text.\r
 242                         while ( lastChild && lastChild.type == CKEDITOR.NODE_TEXT && !CKEDITOR.tools.rtrim( lastChild.getText() ) )\r
 243                                 lastChild = lastChild.getPrevious();\r
 244                         if ( !lastChild || !lastChild.is || !lastChild.is( 'br' ) )\r
 245                         {\r
 246                                 this.append(\r
 247                                         CKEDITOR.env.opera ?\r
 248                                                 this.getDocument().createText('') :\r
 249                                                 this.getDocument().createElement( 'br' ) );\r
 250                         }\r
 251                 },\r
 252 \r
 253                 /**\r
 254                  * Breaks one of the ancestor element in the element position, moving\r
 255                  * this element between the broken parts.\r
 256                  * @param {CKEDITOR.dom.element} parent The anscestor element to get broken.\r
 257                  * @example\r
 258                  * // Before breaking:\r
 259                  * //     &lt;b&gt;This &lt;i&gt;is some&lt;span /&gt; sample&lt;/i&gt; test text&lt;/b&gt;\r
 260                  * // If "element" is &lt;span /&gt; and "parent" is &lt;i&gt;:\r
 261                  * //     &lt;b&gt;This &lt;i&gt;is some&lt;/i&gt;&lt;span /&gt;&lt;i&gt; sample&lt;/i&gt; test text&lt;/b&gt;\r
 262                  * element.breakParent( parent );\r
 263                  * @example\r
 264                  * // Before breaking:\r
 265                  * //     &lt;b&gt;This &lt;i&gt;is some&lt;span /&gt; sample&lt;/i&gt; test text&lt;/b&gt;\r
 266                  * // If "element" is &lt;span /&gt; and "parent" is &lt;b&gt;:\r
 267                  * //     &lt;b&gt;This &lt;i&gt;is some&lt;/i&gt;&lt;/b&gt;&lt;span /&gt;&lt;b&gt;&lt;i&gt; sample&lt;/i&gt; test text&lt;/b&gt;\r
 268                  * element.breakParent( parent );\r
 269                  */\r
 270                 breakParent : function( parent )\r
 271                 {\r
 272                         var range = new CKEDITOR.dom.range( this.getDocument() );\r
 273 \r
 274                         // We'll be extracting part of this element, so let's use our\r
 275                         // range to get the correct piece.\r
 276                         range.setStartAfter( this );\r
 277                         range.setEndAfter( parent );\r
 278 \r
 279                         // Extract it.\r
 280                         var docFrag = range.extractContents();\r
 281 \r
 282                         // Move the element outside the broken element.\r
 283                         range.insertNode( this.remove() );\r
 284 \r
 285                         // Re-insert the extracted piece after the element.\r
 286                         docFrag.insertAfterNode( this );\r
 287                 },\r
 288 \r
 289                 contains :\r
 290                         CKEDITOR.env.ie || CKEDITOR.env.webkit ?\r
 291                                 function( node )\r
 292                                 {\r
 293                                         var $ = this.$;\r
 294 \r
 295                                         return node.type != CKEDITOR.NODE_ELEMENT ?\r
 296                                                 $.contains( node.getParent().$ ) :\r
 297                                                 $ != node.$ && $.contains( node.$ );\r
 298                                 }\r
 299                         :\r
 300                                 function( node )\r
 301                                 {\r
 302                                         return !!( this.$.compareDocumentPosition( node.$ ) & 16 );\r
 303                                 },\r
 304 \r
 305                 /**\r
 306                  * Moves the selection focus to this element.\r
 307                  * @example\r
 308                  * var element = CKEDITOR.document.getById( 'myTextarea' );\r
 309                  * <b>element.focus()</b>;\r
 310                  */\r
 311                 focus : function()\r
 312                 {\r
 313                         // IE throws error if the element is not visible.\r
 314                         try\r
 315                         {\r
 316                                 this.$.focus();\r
 317                         }\r
 318                         catch (e)\r
 319                         {}\r
 320                 },\r
 321 \r
 322                 /**\r
 323                  * Gets the inner HTML of this element.\r
 324                  * @returns {String} The inner HTML of this element.\r
 325                  * @example\r
 326                  * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div&gt;&lt;b&gt;Example&lt;/b&gt;&lt;/div&gt;' );\r
 327                  * alert( <b>p.getHtml()</b> );  // "&lt;b&gt;Example&lt;/b&gt;"\r
 328                  */\r
 329                 getHtml : function()\r
 330                 {\r
 331                         var retval = this.$.innerHTML;\r
 332                         // Strip <?xml:namespace> tags in IE. (#3341).\r
 333                         return CKEDITOR.env.ie ? retval.replace( /<\?[^>]*>/g, '' ) : retval;\r
 334                 },\r
 335 \r
 336                 getOuterHtml : function()\r
 337                 {\r
 338                         if ( this.$.outerHTML )\r
 339                         {\r
 340                                 // IE includes the <?xml:namespace> tag in the outerHTML of\r
 341                                 // namespaced element. So, we must strip it here. (#3341)\r
 342                                 return this.$.outerHTML.replace( /<\?[^>]*>/, '' );\r
 343                         }\r
 344 \r
 345                         var tmpDiv = this.$.ownerDocument.createElement( 'div' );\r
 346                         tmpDiv.appendChild( this.$.cloneNode( true ) );\r
 347                         return tmpDiv.innerHTML;\r
 348                 },\r
 349 \r
 350                 /**\r
 351                  * Sets the inner HTML of this element.\r
 352                  * @param {String} html The HTML to be set for this element.\r
 353                  * @returns {String} The inserted HTML.\r
 354                  * @example\r
 355                  * var p = new CKEDITOR.dom.element( 'p' );\r
 356                  * <b>p.setHtml( '&lt;b&gt;Inner&lt;/b&gt; HTML' );</b>\r
 357                  *\r
 358                  * // result: "&lt;p&gt;&lt;b&gt;Inner&lt;/b&gt; HTML&lt;/p&gt;"\r
 359                  */\r
 360                 setHtml : function( html )\r
 361                 {\r
 362                         return ( this.$.innerHTML = html );\r
 363                 },\r
 364 \r
 365                 /**\r
 366                  * Sets the element contents as plain text.\r
 367                  * @param {String} text The text to be set.\r
 368                  * @returns {String} The inserted text.\r
 369                  * @example\r
 370                  * var element = new CKEDITOR.dom.element( 'div' );\r
 371                  * element.setText( 'A > B & C < D' );\r
 372                  * alert( element.innerHTML );  // "A &amp;gt; B &amp;amp; C &amp;lt; D"\r
 373                  */\r
 374                 setText : function( text )\r
 375                 {\r
 376                         CKEDITOR.dom.element.prototype.setText = ( this.$.innerText != undefined ) ?\r
 377                                 function ( text )\r
 378                                 {\r
 379                                         return this.$.innerText = text;\r
 380                                 } :\r
 381                                 function ( text )\r
 382                                 {\r
 383                                         return this.$.textContent = text;\r
 384                                 };\r
 385 \r
 386                         return this.setText( text );\r
 387                 },\r
 388 \r
 389                 /**\r
 390                  * Gets the value of an element attribute.\r
 391                  * @function\r
 392                  * @param {String} name The attribute name.\r
 393                  * @returns {String} The attribute value or null if not defined.\r
 394                  * @example\r
 395                  * var element = CKEDITOR.dom.element.createFromHtml( '&lt;input type="text" /&gt;' );\r
 396                  * alert( <b>element.getAttribute( 'type' )</b> );  // "text"\r
 397                  */\r
 398                 getAttribute : (function()\r
 399                 {\r
 400                         var standard = function( name )\r
 401                         {\r
 402                                 return this.$.getAttribute( name, 2 );\r
 403                         };\r
 404 \r
 405                         if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) )\r
 406                         {\r
 407                                 return function( name )\r
 408                                 {\r
 409                                         switch ( name )\r
 410                                         {\r
 411                                                 case 'class':\r
 412                                                         name = 'className';\r
 413                                                         break;\r
 414 \r
 415                                                 case 'tabindex':\r
 416                                                         var tabIndex = standard.call( this, name );\r
 417 \r
 418                                                         // IE returns tabIndex=0 by default for all\r
 419                                                         // elements. For those elements,\r
 420                                                         // getAtrribute( 'tabindex', 2 ) returns 32768\r
 421                                                         // instead. So, we must make this check to give a\r
 422                                                         // uniform result among all browsers.\r
 423                                                         if ( tabIndex !== 0 && this.$.tabIndex === 0 )\r
 424                                                                 tabIndex = null;\r
 425 \r
 426                                                         return tabIndex;\r
 427                                                         break;\r
 428 \r
 429                                                 case 'checked':\r
 430                                                 {\r
 431                                                         var attr = this.$.attributes.getNamedItem( name ),\r
 432                                                                 attrValue = attr.specified ? attr.nodeValue     // For value given by parser.\r
 433                                                                                                                          : this.$.checked;  // For value created via DOM interface.\r
 434 \r
 435                                                         return attrValue ? 'checked' : null;\r
 436                                                 }\r
 437 \r
 438                                                 case 'hspace':\r
 439                                                         return this.$.hspace;\r
 440 \r
 441                                                 case 'style':\r
 442                                                         // IE does not return inline styles via getAttribute(). See #2947.\r
 443                                                         return this.$.style.cssText;\r
 444                                         }\r
 445 \r
 446                                         return standard.call( this, name );\r
 447                                 };\r
 448                         }\r
 449                         else\r
 450                                 return standard;\r
 451                 })(),\r
 452 \r
 453                 getChildren : function()\r
 454                 {\r
 455                         return new CKEDITOR.dom.nodeList( this.$.childNodes );\r
 456                 },\r
 457 \r
 458                 /**\r
 459                  * Gets the current computed value of one of the element CSS style\r
 460                  * properties.\r
 461                  * @function\r
 462                  * @param {String} propertyName The style property name.\r
 463                  * @returns {String} The property value.\r
 464                  * @example\r
 465                  * var element = new CKEDITOR.dom.element( 'span' );\r
 466                  * alert( <b>element.getComputedStyle( 'display' )</b> );  // "inline"\r
 467                  */\r
 468                 getComputedStyle :\r
 469                         CKEDITOR.env.ie ?\r
 470                                 function( propertyName )\r
 471                                 {\r
 472                                         return this.$.currentStyle[ CKEDITOR.tools.cssStyleToDomStyle( propertyName ) ];\r
 473                                 }\r
 474                         :\r
 475                                 function( propertyName )\r
 476                                 {\r
 477                                         return this.getWindow().$.getComputedStyle( this.$, '' ).getPropertyValue( propertyName );\r
 478                                 },\r
 479 \r
 480                 /**\r
 481                  * Gets the DTD entries for this element.\r
 482                  * @returns {Object} An object containing the list of elements accepted\r
 483                  *              by this element.\r
 484                  */\r
 485                 getDtd : function()\r
 486                 {\r
 487                         var dtd = CKEDITOR.dtd[ this.getName() ];\r
 488 \r
 489                         this.getDtd = function()\r
 490                         {\r
 491                                 return dtd;\r
 492                         };\r
 493 \r
 494                         return dtd;\r
 495                 },\r
 496 \r
 497                 getElementsByTag : CKEDITOR.dom.document.prototype.getElementsByTag,\r
 498 \r
 499                 /**\r
 500                  * Gets the computed tabindex for this element.\r
 501                  * @function\r
 502                  * @returns {Number} The tabindex value.\r
 503                  * @example\r
 504                  * var element = CKEDITOR.document.getById( 'myDiv' );\r
 505                  * alert( <b>element.getTabIndex()</b> );  // e.g. "-1"\r
 506                  */\r
 507                 getTabIndex :\r
 508                         CKEDITOR.env.ie ?\r
 509                                 function()\r
 510                                 {\r
 511                                         var tabIndex = this.$.tabIndex;\r
 512 \r
 513                                         // IE returns tabIndex=0 by default for all elements. In\r
 514                                         // those cases we must check that the element really has\r
 515                                         // the tabindex attribute set to zero, or it is one of\r
 516                                         // those element that should have zero by default.\r
 517                                         if ( tabIndex === 0 && !CKEDITOR.dtd.$tabIndex[ this.getName() ] && parseInt( this.getAttribute( 'tabindex' ), 10 ) !== 0 )\r
 518                                                 tabIndex = -1;\r
 519 \r
 520                                                 return tabIndex;\r
 521                                 }\r
 522                         : CKEDITOR.env.webkit ?\r
 523                                 function()\r
 524                                 {\r
 525                                         var tabIndex = this.$.tabIndex;\r
 526 \r
 527                                         // Safari returns "undefined" for elements that should not\r
 528                                         // have tabindex (like a div). So, we must try to get it\r
 529                                         // from the attribute.\r
 530                                         // https://bugs.webkit.org/show_bug.cgi?id=20596\r
 531                                         if ( tabIndex == undefined )\r
 532                                         {\r
 533                                                 tabIndex = parseInt( this.getAttribute( 'tabindex' ), 10 );\r
 534 \r
 535                                                 // If the element don't have the tabindex attribute,\r
 536                                                 // then we should return -1.\r
 537                                                 if ( isNaN( tabIndex ) )\r
 538                                                         tabIndex = -1;\r
 539                                         }\r
 540 \r
 541                                         return tabIndex;\r
 542                                 }\r
 543                         :\r
 544                                 function()\r
 545                                 {\r
 546                                         return this.$.tabIndex;\r
 547                                 },\r
 548 \r
 549                 /**\r
 550                  * Gets the text value of this element.\r
 551                  *\r
 552                  * Only in IE (which uses innerText), &lt;br&gt; will cause linebreaks,\r
 553                  * and sucessive whitespaces (including line breaks) will be reduced to\r
 554                  * a single space. This behavior is ok for us, for now. It may change\r
 555                  * in the future.\r
 556                  * @returns {String} The text value.\r
 557                  * @example\r
 558                  * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div&gt;Same &lt;i&gt;text&lt;/i&gt;.&lt;/div&gt;' );\r
 559                  * alert( <b>element.getText()</b> );  // "Sample text."\r
 560                  */\r
 561                 getText : function()\r
 562                 {\r
 563                         return this.$.textContent || this.$.innerText || '';\r
 564                 },\r
 565 \r
 566                 /**\r
 567                  * Gets the window object that contains this element.\r
 568                  * @returns {CKEDITOR.dom.window} The window object.\r
 569                  * @example\r
 570                  */\r
 571                 getWindow : function()\r
 572                 {\r
 573                         return this.getDocument().getWindow();\r
 574                 },\r
 575 \r
 576                 /**\r
 577                  * Gets the value of the "id" attribute of this element.\r
 578                  * @returns {String} The element id, or null if not available.\r
 579                  * @example\r
 580                  * var element = CKEDITOR.dom.element.createFromHtml( '&lt;p id="myId"&gt;&lt;/p&gt;' );\r
 581                  * alert( <b>element.getId()</b> );  // "myId"\r
 582                  */\r
 583                 getId : function()\r
 584                 {\r
 585                         return this.$.id || null;\r
 586                 },\r
 587 \r
 588                 /**\r
 589                  * Gets the value of the "name" attribute of this element.\r
 590                  * @returns {String} The element name, or null if not available.\r
 591                  * @example\r
 592                  * var element = CKEDITOR.dom.element.createFromHtml( '&lt;input name="myName"&gt;&lt;/input&gt;' );\r
 593                  * alert( <b>element.getNameAtt()</b> );  // "myName"\r
 594                  */\r
 595                 getNameAtt : function()\r
 596                 {\r
 597                         return this.$.name || null;\r
 598                 },\r
 599 \r
 600                 /**\r
 601                  * Gets the element name (tag name). The returned name is guaranteed to\r
 602                  * be always full lowercased.\r
 603                  * @returns {String} The element name.\r
 604                  * @example\r
 605                  * var element = new CKEDITOR.dom.element( 'span' );\r
 606                  * alert( <b>element.getName()</b> );  // "span"\r
 607                  */\r
 608                 getName : function()\r
 609                 {\r
 610                         // Cache the lowercased name inside a closure.\r
 611                         var nodeName = this.$.nodeName.toLowerCase();\r
 612 \r
 613                         if ( CKEDITOR.env.ie )\r
 614                         {\r
 615                                 var scopeName = this.$.scopeName;\r
 616                                 if ( scopeName != 'HTML' )\r
 617                                         nodeName = scopeName.toLowerCase() + ':' + nodeName;\r
 618                         }\r
 619 \r
 620                         return (\r
 621                         /** @ignore */\r
 622                         this.getName = function()\r
 623                                 {\r
 624                                         return nodeName;\r
 625                                 })();\r
 626                 },\r
 627 \r
 628                 /**\r
 629                  * Gets the value set to this element. This value is usually available\r
 630                  * for form field elements.\r
 631                  * @returns {String} The element value.\r
 632                  */\r
 633                 getValue : function()\r
 634                 {\r
 635                         return this.$.value;\r
 636                 },\r
 637 \r
 638                 /**\r
 639                  * Gets the first child node of this element.\r
 640                  * @param {Function} evaluator Filtering the result node.\r
 641                  * @returns {CKEDITOR.dom.node} The first child node or null if not\r
 642                  *              available.\r
 643                  * @example\r
 644                  * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div&gt;&lt;b&gt;Example&lt;/b&gt;&lt;/div&gt;' );\r
 645                  * var first = <b>element.getFirst()</b>;\r
 646                  * alert( first.getName() );  // "b"\r
 647                  */\r
 648                 getFirst : function( evaluator )\r
 649                 {\r
 650                         var first = this.$.firstChild,\r
 651                                 retval = first && new CKEDITOR.dom.node( first );\r
 652                         if ( retval && evaluator && !evaluator( retval ) )\r
 653                                 retval = retval.getNext( evaluator );\r
 654 \r
 655                         return retval;\r
 656                 },\r
 657 \r
 658                 /**\r
 659                  * @param {Function} evaluator Filtering the result node.\r
 660                  */\r
 661                 getLast : function( evaluator )\r
 662                 {\r
 663                         var last = this.$.lastChild,\r
 664                                 retval = last && new CKEDITOR.dom.node( last );\r
 665                         if ( retval && evaluator && !evaluator( retval ) )\r
 666                                 retval = retval.getPrevious( evaluator );\r
 667 \r
 668                         return retval;\r
 669                 },\r
 670 \r
 671                 getStyle : function( name )\r
 672                 {\r
 673                         return this.$.style[ CKEDITOR.tools.cssStyleToDomStyle( name ) ];\r
 674                 },\r
 675 \r
 676                 /**\r
 677                  * Checks if the element name matches one or more names.\r
 678                  * @param {String} name[,name[,...]] One or more names to be checked.\r
 679                  * @returns {Boolean} true if the element name matches any of the names.\r
 680                  * @example\r
 681                  * var element = new CKEDITOR.element( 'span' );\r
 682                  * alert( <b>element.is( 'span' )</b> );  "true"\r
 683                  * alert( <b>element.is( 'p', 'span' )</b> );  "true"\r
 684                  * alert( <b>element.is( 'p' )</b> );  "false"\r
 685                  * alert( <b>element.is( 'p', 'div' )</b> );  "false"\r
 686                  */\r
 687                 is : function()\r
 688                 {\r
 689                         var name = this.getName();\r
 690                         for ( var i = 0 ; i < arguments.length ; i++ )\r
 691                         {\r
 692                                 if ( arguments[ i ] == name )\r
 693                                         return true;\r
 694                         }\r
 695                         return false;\r
 696                 },\r
 697 \r
 698                 isEditable : function()\r
 699                 {\r
 700                         // Get the element name.\r
 701                         var name = this.getName();\r
 702 \r
 703                         // Get the element DTD (defaults to span for unknown elements).\r
 704                         var dtd = !CKEDITOR.dtd.$nonEditable[ name ]\r
 705                                                 && ( CKEDITOR.dtd[ name ] || CKEDITOR.dtd.span );\r
 706 \r
 707                         // In the DTD # == text node.\r
 708                         return ( dtd && dtd['#'] );\r
 709                 },\r
 710 \r
 711                 isIdentical : function( otherElement )\r
 712                 {\r
 713                         if ( this.getName() != otherElement.getName() )\r
 714                                 return false;\r
 715 \r
 716                         var thisAttribs = this.$.attributes,\r
 717                                 otherAttribs = otherElement.$.attributes;\r
 718 \r
 719                         var thisLength = thisAttribs.length,\r
 720                                 otherLength = otherAttribs.length;\r
 721 \r
 722                         if ( !CKEDITOR.env.ie && thisLength != otherLength )\r
 723                                 return false;\r
 724 \r
 725                         for ( var i = 0 ; i < thisLength ; i++ )\r
 726                         {\r
 727                                 var attribute = thisAttribs[ i ];\r
 728 \r
 729                                 if ( ( !CKEDITOR.env.ie || ( attribute.specified && attribute.nodeName != '_cke_expando' ) ) && attribute.nodeValue != otherElement.getAttribute( attribute.nodeName ) )\r
 730                                         return false;\r
 731                         }\r
 732 \r
 733                         // For IE, we have to for both elements, because it's difficult to\r
 734                         // know how the atttibutes collection is organized in its DOM.\r
 735                         if ( CKEDITOR.env.ie )\r
 736                         {\r
 737                                 for ( i = 0 ; i < otherLength ; i++ )\r
 738                                 {\r
 739                                         attribute = otherAttribs[ i ];\r
 740                                         if ( attribute.specified && attribute.nodeName != '_cke_expando'\r
 741                                                         && attribute.nodeValue != this.getAttribute( attribute.nodeName ) )\r
 742                                                 return false;\r
 743                                 }\r
 744                         }\r
 745 \r
 746                         return true;\r
 747                 },\r
 748 \r
 749                 /**\r
 750                  * Checks if this element is visible. May not work if the element is\r
 751                  * child of an element with visibility set to "hidden", but works well\r
 752                  * on the great majority of cases.\r
 753                  * @return {Boolean} True if the element is visible.\r
 754                  */\r
 755                 isVisible : function()\r
 756                 {\r
 757                         var isVisible = !!this.$.offsetHeight && this.getComputedStyle( 'visibility' ) != 'hidden',\r
 758                                 elementWindow,\r
 759                                 elementWindowFrame;\r
 760 \r
 761                         // Webkit and Opera report non-zero offsetHeight despite that\r
 762                         // element is inside an invisible iframe. (#4542)\r
 763                         if ( isVisible && ( CKEDITOR.env.webkit || CKEDITOR.env.opera ) )\r
 764                         {\r
 765                                 elementWindow = this.getWindow();\r
 766 \r
 767                                 if ( !elementWindow.equals( CKEDITOR.document.getWindow() )\r
 768                                                 && ( elementWindowFrame = elementWindow.$.frameElement ) )\r
 769                                 {\r
 770                                         isVisible = new CKEDITOR.dom.element( elementWindowFrame ).isVisible();\r
 771                                 }\r
 772                         }\r
 773 \r
 774                         return isVisible;\r
 775                 },\r
 776 \r
 777                 /**\r
 778                  * Indicates that the element has defined attributes.\r
 779                  * @returns {Boolean} True if the element has attributes.\r
 780                  * @example\r
 781                  * var element = CKEDITOR.dom.element.createFromHtml( '<div title="Test">Example</div>' );\r
 782                  * alert( <b>element.hasAttributes()</b> );  "true"\r
 783                  * @example\r
 784                  * var element = CKEDITOR.dom.element.createFromHtml( '<div>Example</div>' );\r
 785                  * alert( <b>element.hasAttributes()</b> );  "false"\r
 786                  */\r
 787                 hasAttributes :\r
 788                         CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) ?\r
 789                                 function()\r
 790                                 {\r
 791                                         var attributes = this.$.attributes;\r
 792 \r
 793                                         for ( var i = 0 ; i < attributes.length ; i++ )\r
 794                                         {\r
 795                                                 var attribute = attributes[i];\r
 796 \r
 797                                                 switch ( attribute.nodeName )\r
 798                                                 {\r
 799                                                         case 'class' :\r
 800                                                                 // IE has a strange bug. If calling removeAttribute('className'),\r
 801                                                                 // the attributes collection will still contain the "class"\r
 802                                                                 // attribute, which will be marked as "specified", even if the\r
 803                                                                 // outerHTML of the element is not displaying the class attribute.\r
 804                                                                 // Note : I was not able to reproduce it outside the editor,\r
 805                                                                 // but I've faced it while working on the TC of #1391.\r
 806                                                                 if ( this.getAttribute( 'class' ) )\r
 807                                                                         return true;\r
 808 \r
 809                                                         // Attributes to be ignored.\r
 810                                                         case '_cke_expando' :\r
 811                                                                 continue;\r
 812 \r
 813                                                         /*jsl:fallthru*/\r
 814 \r
 815                                                         default :\r
 816                                                                 if ( attribute.specified )\r
 817                                                                         return true;\r
 818                                                 }\r
 819                                         }\r
 820 \r
 821                                         return false;\r
 822                                 }\r
 823                         :\r
 824                                 function()\r
 825                                 {\r
 826                                         var attributes = this.$.attributes;\r
 827                                         return ( attributes.length > 1 || ( attributes.length == 1 && attributes[0].nodeName != '_cke_expando' ) );\r
 828                                 },\r
 829 \r
 830                 /**\r
 831                  * Indicates whether a specified attribute is defined for this element.\r
 832                  * @returns {Boolean} True if the specified attribute is defined.\r
 833                  * @param (String) name The attribute name.\r
 834                  * @example\r
 835                  */\r
 836                 hasAttribute : function( name )\r
 837                 {\r
 838                         var $attr = this.$.attributes.getNamedItem( name );\r
 839                         return !!( $attr && $attr.specified );\r
 840                 },\r
 841 \r
 842                 /**\r
 843                  * Hides this element (display:none).\r
 844                  * @example\r
 845                  * var element = CKEDITOR.dom.element.getById( 'myElement' );\r
 846                  * <b>element.hide()</b>;\r
 847                  */\r
 848                 hide : function()\r
 849                 {\r
 850                         this.setStyle( 'display', 'none' );\r
 851                 },\r
 852 \r
 853                 moveChildren : function( target, toStart )\r
 854                 {\r
 855                         var $ = this.$;\r
 856                         target = target.$;\r
 857 \r
 858                         if ( $ == target )\r
 859                                 return;\r
 860 \r
 861                         var child;\r
 862 \r
 863                         if ( toStart )\r
 864                         {\r
 865                                 while ( ( child = $.lastChild ) )\r
 866                                         target.insertBefore( $.removeChild( child ), target.firstChild );\r
 867                         }\r
 868                         else\r
 869                         {\r
 870                                 while ( ( child = $.firstChild ) )\r
 871                                         target.appendChild( $.removeChild( child ) );\r
 872                         }\r
 873                 },\r
 874 \r
 875                 /**\r
 876                  * Shows this element (display it).\r
 877                  * @example\r
 878                  * var element = CKEDITOR.dom.element.getById( 'myElement' );\r
 879                  * <b>element.show()</b>;\r
 880                  */\r
 881                 show : function()\r
 882                 {\r
 883                         this.setStyles(\r
 884                                 {\r
 885                                         display : '',\r
 886                                         visibility : ''\r
 887                                 });\r
 888                 },\r
 889 \r
 890                 /**\r
 891                  * Sets the value of an element attribute.\r
 892                  * @param {String} name The name of the attribute.\r
 893                  * @param {String} value The value to be set to the attribute.\r
 894                  * @function\r
 895                  * @returns {CKEDITOR.dom.element} This element instance.\r
 896                  * @example\r
 897                  * var element = CKEDITOR.dom.element.getById( 'myElement' );\r
 898                  * <b>element.setAttribute( 'class', 'myClass' )</b>;\r
 899                  * <b>element.setAttribute( 'title', 'This is an example' )</b>;\r
 900                  */\r
 901                 setAttribute : (function()\r
 902                 {\r
 903                         var standard = function( name, value )\r
 904                         {\r
 905                                 this.$.setAttribute( name, value );\r
 906                                 return this;\r
 907                         };\r
 908 \r
 909                         if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) )\r
 910                         {\r
 911                                 return function( name, value )\r
 912                                 {\r
 913                                         if ( name == 'class' )\r
 914                                                 this.$.className = value;\r
 915                                         else if ( name == 'style' )\r
 916                                                 this.$.style.cssText = value;\r
 917                                         else if ( name == 'tabindex' )  // Case sensitive.\r
 918                                                 this.$.tabIndex = value;\r
 919                                         else if ( name == 'checked' )\r
 920                                                 this.$.checked = value;\r
 921                                         else\r
 922                                                 standard.apply( this, arguments );\r
 923                                         return this;\r
 924                                 };\r
 925                         }\r
 926                         else\r
 927                                 return standard;\r
 928                 })(),\r
 929 \r
 930                 /**\r
 931                  * Sets the value of several element attributes.\r
 932                  * @param {Object} attributesPairs An object containing the names and\r
 933                  *              values of the attributes.\r
 934                  * @returns {CKEDITOR.dom.element} This element instance.\r
 935                  * @example\r
 936                  * var element = CKEDITOR.dom.element.getById( 'myElement' );\r
 937                  * <b>element.setAttributes({\r
 938                  *     'class' : 'myClass',\r
 939                  *     'title' : 'This is an example' })</b>;\r
 940                  */\r
 941                 setAttributes : function( attributesPairs )\r
 942                 {\r
 943                         for ( var name in attributesPairs )\r
 944                                 this.setAttribute( name, attributesPairs[ name ] );\r
 945                         return this;\r
 946                 },\r
 947 \r
 948                 /**\r
 949                  * Sets the element value. This function is usually used with form\r
 950                  * field element.\r
 951                  * @param {String} value The element value.\r
 952                  * @returns {CKEDITOR.dom.element} This element instance.\r
 953                  */\r
 954                 setValue : function( value )\r
 955                 {\r
 956                         this.$.value = value;\r
 957                         return this;\r
 958                 },\r
 959 \r
 960                 /**\r
 961                  * Removes an attribute from the element.\r
 962                  * @param {String} name The attribute name.\r
 963                  * @function\r
 964                  * @example\r
 965                  * var element = CKEDITOR.dom.element.createFromHtml( '<div class="classA"></div>' );\r
 966                  * element.removeAttribute( 'class' );\r
 967                  */\r
 968                 removeAttribute : (function()\r
 969                 {\r
 970                         var standard = function( name )\r
 971                         {\r
 972                                 this.$.removeAttribute( name );\r
 973                         };\r
 974 \r
 975                         if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) )\r
 976                         {\r
 977                                 return function( name )\r
 978                                 {\r
 979                                         if ( name == 'class' )\r
 980                                                 name = 'className';\r
 981                                         else if ( name == 'tabindex' )\r
 982                                                 name = 'tabIndex';\r
 983                                         standard.call( this, name );\r
 984                                 };\r
 985                         }\r
 986                         else\r
 987                                 return standard;\r
 988                 })(),\r
 989 \r
 990                 removeAttributes : function ( attributes )\r
 991                 {\r
 992                         for ( var i = 0 ; i < attributes.length ; i++ )\r
 993                                 this.removeAttribute( attributes[ i ] );\r
 994                 },\r
 995 \r
 996                 /**\r
 997                  * Removes a style from the element.\r
 998                  * @param {String} name The style name.\r
 999                  * @function\r
1000                  * @example\r
1001                  * var element = CKEDITOR.dom.element.createFromHtml( '<div style="display:none"></div>' );\r
1002                  * element.removeStyle( 'display' );\r
1003                  */\r
1004                 removeStyle : function( name )\r
1005                 {\r
1006                         this.setStyle( name, '' );\r
1007                         if ( this.$.style.removeAttribute )\r
1008                                 this.$.style.removeAttribute( CKEDITOR.tools.cssStyleToDomStyle( name ) );\r
1009 \r
1010                         if ( !this.$.style.cssText )\r
1011                                 this.removeAttribute( 'style' );\r
1012                 },\r
1013 \r
1014                 /**\r
1015                  * Sets the value of an element style.\r
1016                  * @param {String} name The name of the style. The CSS naming notation\r
1017                  *              must be used (e.g. "background-color").\r
1018                  * @param {String} value The value to be set to the style.\r
1019                  * @returns {CKEDITOR.dom.element} This element instance.\r
1020                  * @example\r
1021                  * var element = CKEDITOR.dom.element.getById( 'myElement' );\r
1022                  * <b>element.setStyle( 'background-color', '#ff0000' )</b>;\r
1023                  * <b>element.setStyle( 'margin-top', '10px' )</b>;\r
1024                  * <b>element.setStyle( 'float', 'right' )</b>;\r
1025                  */\r
1026                 setStyle : function( name, value )\r
1027                 {\r
1028                         this.$.style[ CKEDITOR.tools.cssStyleToDomStyle( name ) ] = value;\r
1029                         return this;\r
1030                 },\r
1031 \r
1032                 /**\r
1033                  * Sets the value of several element styles.\r
1034                  * @param {Object} stylesPairs An object containing the names and\r
1035                  *              values of the styles.\r
1036                  * @returns {CKEDITOR.dom.element} This element instance.\r
1037                  * @example\r
1038                  * var element = CKEDITOR.dom.element.getById( 'myElement' );\r
1039                  * <b>element.setStyles({\r
1040                  *     'position' : 'absolute',\r
1041                  *     'float' : 'right' })</b>;\r
1042                  */\r
1043                 setStyles : function( stylesPairs )\r
1044                 {\r
1045                         for ( var name in stylesPairs )\r
1046                                 this.setStyle( name, stylesPairs[ name ] );\r
1047                         return this;\r
1048                 },\r
1049 \r
1050                 /**\r
1051                  * Sets the opacity of an element.\r
1052                  * @param {Number} opacity A number within the range [0.0, 1.0].\r
1053                  * @example\r
1054                  * var element = CKEDITOR.dom.element.getById( 'myElement' );\r
1055                  * <b>element.setOpacity( 0.75 )</b>;\r
1056                  */\r
1057                 setOpacity : function( opacity )\r
1058                 {\r
1059                         if ( CKEDITOR.env.ie )\r
1060                         {\r
1061                                 opacity = Math.round( opacity * 100 );\r
1062                                 this.setStyle( 'filter', opacity >= 100 ? '' : 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ')' );\r
1063                         }\r
1064                         else\r
1065                                 this.setStyle( 'opacity', opacity );\r
1066                 },\r
1067 \r
1068                 /**\r
1069                  * Makes the element and its children unselectable.\r
1070                  * @function\r
1071                  * @example\r
1072                  * var element = CKEDITOR.dom.element.getById( 'myElement' );\r
1073                  * element.unselectable();\r
1074                  */\r
1075                 unselectable :\r
1076                         CKEDITOR.env.gecko ?\r
1077                                 function()\r
1078                                 {\r
1079                                         this.$.style.MozUserSelect = 'none';\r
1080                                 }\r
1081                         : CKEDITOR.env.webkit ?\r
1082                                 function()\r
1083                                 {\r
1084                                         this.$.style.KhtmlUserSelect = 'none';\r
1085                                 }\r
1086                         :\r
1087                                 function()\r
1088                                 {\r
1089                                         if ( CKEDITOR.env.ie || CKEDITOR.env.opera )\r
1090                                         {\r
1091                                                 var element = this.$,\r
1092                                                         e,\r
1093                                                         i = 0;\r
1094 \r
1095                                                 element.unselectable = 'on';\r
1096 \r
1097                                                 while ( ( e = element.all[ i++ ] ) )\r
1098                                                 {\r
1099                                                         switch ( e.tagName.toLowerCase() )\r
1100                                                         {\r
1101                                                                 case 'iframe' :\r
1102                                                                 case 'textarea' :\r
1103                                                                 case 'input' :\r
1104                                                                 case 'select' :\r
1105                                                                         /* Ignore the above tags */\r
1106                                                                         break;\r
1107                                                                 default :\r
1108                                                                         e.unselectable = 'on';\r
1109                                                         }\r
1110                                                 }\r
1111                                         }\r
1112                                 },\r
1113 \r
1114                 getPositionedAncestor : function()\r
1115                 {\r
1116                         var current = this;\r
1117                         while ( current.getName() != 'html' )\r
1118                         {\r
1119                                 if ( current.getComputedStyle( 'position' ) != 'static' )\r
1120                                         return current;\r
1121 \r
1122                                 current = current.getParent();\r
1123                         }\r
1124                         return null;\r
1125                 },\r
1126 \r
1127                 getDocumentPosition : function( refDocument )\r
1128                 {\r
1129                         var x = 0, y = 0,\r
1130                                 body = this.getDocument().getBody(),\r
1131                                 quirks = this.getDocument().$.compatMode == 'BackCompat';\r
1132 \r
1133                         var doc = this.getDocument();\r
1134 \r
1135                         if ( document.documentElement[ "getBoundingClientRect" ] )\r
1136                         {\r
1137                                 var box  = this.$.getBoundingClientRect(),\r
1138                                         $doc = doc.$,\r
1139                                         $docElem = $doc.documentElement;\r
1140 \r
1141                                 var clientTop = $docElem.clientTop || body.$.clientTop || 0,\r
1142                                         clientLeft = $docElem.clientLeft || body.$.clientLeft || 0,\r
1143                                         needAdjustScrollAndBorders = true;\r
1144 \r
1145                                 /*\r
1146                                  * #3804: getBoundingClientRect() works differently on IE and non-IE\r
1147                                  * browsers, regarding scroll positions.\r
1148                                  *\r
1149                                  * On IE, the top position of the <html> element is always 0, no matter\r
1150                                  * how much you scrolled down.\r
1151                                  *\r
1152                                  * On other browsers, the top position of the <html> element is negative\r
1153                                  * scrollTop.\r
1154                                  */\r
1155                                 if ( CKEDITOR.env.ie )\r
1156                                 {\r
1157                                         var inDocElem = doc.getDocumentElement().contains( this ),\r
1158                                                 inBody = doc.getBody().contains( this );\r
1159 \r
1160                                         needAdjustScrollAndBorders = ( quirks && inBody ) || ( !quirks && inDocElem );\r
1161                                 }\r
1162 \r
1163                                 if ( needAdjustScrollAndBorders )\r
1164                                 {\r
1165                                         x = box.left + ( !quirks && $docElem.scrollLeft || body.$.scrollLeft );\r
1166                                         x -= clientLeft;\r
1167                                         y = box.top  + ( !quirks && $docElem.scrollTop || body.$.scrollTop );\r
1168                                         y -= clientTop;\r
1169                                 }\r
1170                         }\r
1171                         else\r
1172                         {\r
1173                                 var current = this, previous = null, offsetParent;\r
1174                                 while ( current && !( current.getName() == 'body' || current.getName() == 'html' ) )\r
1175                                 {\r
1176                                         x += current.$.offsetLeft - current.$.scrollLeft;\r
1177                                         y += current.$.offsetTop - current.$.scrollTop;\r
1178 \r
1179                                         // Opera includes clientTop|Left into offsetTop|Left.\r
1180                                         if ( !current.equals( this ) )\r
1181                                         {\r
1182                                                 x += ( current.$.clientLeft || 0 );\r
1183                                                 y += ( current.$.clientTop || 0 );\r
1184                                         }\r
1185 \r
1186                                         var scrollElement = previous;\r
1187                                         while ( scrollElement && !scrollElement.equals( current ) )\r
1188                                         {\r
1189                                                 x -= scrollElement.$.scrollLeft;\r
1190                                                 y -= scrollElement.$.scrollTop;\r
1191                                                 scrollElement = scrollElement.getParent();\r
1192                                         }\r
1193 \r
1194                                         previous = current;\r
1195                                         current = ( offsetParent = current.$.offsetParent ) ?\r
1196                                                   new CKEDITOR.dom.element( offsetParent ) : null;\r
1197                                 }\r
1198                         }\r
1199 \r
1200                         if ( refDocument )\r
1201                         {\r
1202                                 var currentWindow = this.getWindow(),\r
1203                                         refWindow = refDocument.getWindow();\r
1204 \r
1205                                 if ( !currentWindow.equals( refWindow ) && currentWindow.$.frameElement )\r
1206                                 {\r
1207                                         var iframePosition = ( new CKEDITOR.dom.element( currentWindow.$.frameElement ) ).getDocumentPosition( refDocument );\r
1208 \r
1209                                         x += iframePosition.x;\r
1210                                         y += iframePosition.y;\r
1211                                 }\r
1212                         }\r
1213 \r
1214                         if ( !document.documentElement[ "getBoundingClientRect" ] )\r
1215                         {\r
1216                                 // In Firefox, we'll endup one pixel before the element positions,\r
1217                                 // so we must add it here.\r
1218                                 if ( CKEDITOR.env.gecko && !quirks )\r
1219                                 {\r
1220                                         x += this.$.clientLeft ? 1 : 0;\r
1221                                         y += this.$.clientTop ? 1 : 0;\r
1222                                 }\r
1223                         }\r
1224 \r
1225                         return { x : x, y : y };\r
1226                 },\r
1227 \r
1228                 scrollIntoView : function( alignTop )\r
1229                 {\r
1230                         // Get the element window.\r
1231                         var win = this.getWindow(),\r
1232                                 winHeight = win.getViewPaneSize().height;\r
1233 \r
1234                         // Starts from the offset that will be scrolled with the negative value of\r
1235                         // the visible window height.\r
1236                         var offset = winHeight * -1;\r
1237 \r
1238                         // Append the view pane's height if align to top.\r
1239                         // Append element height if we are aligning to the bottom.\r
1240                         if ( alignTop )\r
1241                                 offset += winHeight;\r
1242                         else\r
1243                         {\r
1244                                 offset += this.$.offsetHeight || 0;\r
1245 \r
1246                                 // Consider the margin in the scroll, which is ok for our current needs, but\r
1247                                 // needs investigation if we will be using this function in other places.\r
1248                                 offset += parseInt( this.getComputedStyle( 'marginBottom' ) || 0, 10 ) || 0;\r
1249                         }\r
1250 \r
1251                         // Append the offsets for the entire element hierarchy.\r
1252                         var elementPosition = this.getDocumentPosition();\r
1253                         offset += elementPosition.y;\r
1254 \r
1255                         // offset value might be out of range(nagative), fix it(#3692).\r
1256                         offset = offset < 0 ? 0 : offset;\r
1257 \r
1258                         // Scroll the window to the desired position, if not already visible(#3795).\r
1259                         var currentScroll = win.getScrollPosition().y;\r
1260                         if ( offset > currentScroll || offset < currentScroll - winHeight )\r
1261                                 win.$.scrollTo( 0, offset );\r
1262                 },\r
1263 \r
1264                 setState : function( state )\r
1265                 {\r
1266                         switch ( state )\r
1267                         {\r
1268                                 case CKEDITOR.TRISTATE_ON :\r
1269                                         this.addClass( 'cke_on' );\r
1270                                         this.removeClass( 'cke_off' );\r
1271                                         this.removeClass( 'cke_disabled' );\r
1272                                         break;\r
1273                                 case CKEDITOR.TRISTATE_DISABLED :\r
1274                                         this.addClass( 'cke_disabled' );\r
1275                                         this.removeClass( 'cke_off' );\r
1276                                         this.removeClass( 'cke_on' );\r
1277                                         break;\r
1278                                 default :\r
1279                                         this.addClass( 'cke_off' );\r
1280                                         this.removeClass( 'cke_on' );\r
1281                                         this.removeClass( 'cke_disabled' );\r
1282                                         break;\r
1283                         }\r
1284                 },\r
1285 \r
1286                 /**\r
1287                  * Returns the inner document of this IFRAME element.\r
1288                  * @returns {CKEDITOR.dom.document} The inner document.\r
1289                  */\r
1290                 getFrameDocument : function()\r
1291                 {\r
1292                         var $ = this.$;\r
1293 \r
1294                         try\r
1295                         {\r
1296                                 // In IE, with custom document.domain, it may happen that\r
1297                                 // the iframe is not yet available, resulting in "Access\r
1298                                 // Denied" for the following property access.\r
1299                                 $.contentWindow.document;\r
1300                         }\r
1301                         catch ( e )\r
1302                         {\r
1303                                 // Trick to solve this issue, forcing the iframe to get ready\r
1304                                 // by simply setting its "src" property.\r
1305                                 $.src = $.src;\r
1306 \r
1307                                 // In IE6 though, the above is not enough, so we must pause the\r
1308                                 // execution for a while, giving it time to think.\r
1309                                 if ( CKEDITOR.env.ie && CKEDITOR.env.version < 7 )\r
1310                                 {\r
1311                                         window.showModalDialog(\r
1312                                                 'javascript:document.write("' +\r
1313                                                         '<script>' +\r
1314                                                                 'window.setTimeout(' +\r
1315                                                                         'function(){window.close();}' +\r
1316                                                                         ',50);' +\r
1317                                                         '</script>")' );\r
1318                                 }\r
1319                         }\r
1320 \r
1321                         return $ && new CKEDITOR.dom.document( $.contentWindow.document );\r
1322                 },\r
1323 \r
1324                 /**\r
1325                  * Copy all the attributes from one node to the other, kinda like a clone\r
1326                  * skipAttributes is an object with the attributes that must NOT be copied.\r
1327                  * @param {CKEDITOR.dom.element} dest The destination element.\r
1328                  * @param {Object} skipAttributes A dictionary of attributes to skip.\r
1329                  * @example\r
1330                  */\r
1331                 copyAttributes : function( dest, skipAttributes )\r
1332                 {\r
1333                         var attributes = this.$.attributes;\r
1334                         skipAttributes = skipAttributes || {};\r
1335 \r
1336                         for ( var n = 0 ; n < attributes.length ; n++ )\r
1337                         {\r
1338                                 var attribute = attributes[n];\r
1339 \r
1340                                 // Lowercase attribute name hard rule is broken for\r
1341                                 // some attribute on IE, e.g. CHECKED.\r
1342                                 var attrName = attribute.nodeName.toLowerCase(),\r
1343                                         attrValue;\r
1344 \r
1345                                 // We can set the type only once, so do it with the proper value, not copying it.\r
1346                                 if ( attrName in skipAttributes )\r
1347                                         continue;\r
1348 \r
1349                                 if( attrName == 'checked' && ( attrValue = this.getAttribute( attrName ) ) )\r
1350                                         dest.setAttribute( attrName, attrValue );\r
1351                                 // IE BUG: value attribute is never specified even if it exists.\r
1352                                 else if ( attribute.specified ||\r
1353                                   ( CKEDITOR.env.ie && attribute.nodeValue && attrName == 'value' ) )\r
1354                                 {\r
1355                                         attrValue = this.getAttribute( attrName );\r
1356                                         if ( attrValue === null )\r
1357                                                 attrValue = attribute.nodeValue;\r
1358 \r
1359                                         dest.setAttribute( attrName, attrValue );\r
1360                                 }\r
1361                         }\r
1362 \r
1363                         // The style:\r
1364                         if ( this.$.style.cssText !== '' )\r
1365                                 dest.$.style.cssText = this.$.style.cssText;\r
1366                 },\r
1367 \r
1368                 /**\r
1369                  * Changes the tag name of the current element.\r
1370                  * @param {String} newTag The new tag for the element.\r
1371                  */\r
1372                 renameNode : function( newTag )\r
1373                 {\r
1374                         // If it's already correct exit here.\r
1375                         if ( this.getName() == newTag )\r
1376                                 return;\r
1377 \r
1378                         var doc = this.getDocument();\r
1379 \r
1380                         // Create the new node.\r
1381                         var newNode = new CKEDITOR.dom.element( newTag, doc );\r
1382 \r
1383                         // Copy all attributes.\r
1384                         this.copyAttributes( newNode );\r
1385 \r
1386                         // Move children to the new node.\r
1387                         this.moveChildren( newNode );\r
1388 \r
1389                         // Replace the node.\r
1390                         this.$.parentNode.replaceChild( newNode.$, this.$ );\r
1391                         newNode.$._cke_expando = this.$._cke_expando;\r
1392                         this.$ = newNode.$;\r
1393                 },\r
1394 \r
1395                 /**\r
1396                  * Gets a DOM tree descendant under the current node.\r
1397                  * @param {Array|Number} indices The child index or array of child indices under the node.\r
1398                  * @returns {CKEDITOR.dom.node} The specified DOM child under the current node. Null if child does not exist.\r
1399                  * @example\r
1400                  * var strong = p.getChild(0);\r
1401                  */\r
1402                 getChild : function( indices )\r
1403                 {\r
1404                         var rawNode = this.$;\r
1405 \r
1406                         if ( !indices.slice )\r
1407                                 rawNode = rawNode.childNodes[ indices ];\r
1408                         else\r
1409                         {\r
1410                                 while ( indices.length > 0 && rawNode )\r
1411                                         rawNode = rawNode.childNodes[ indices.shift() ];\r
1412                         }\r
1413 \r
1414                         return rawNode ? new CKEDITOR.dom.node( rawNode ) : null;\r
1415                 },\r
1416 \r
1417                 getChildCount : function()\r
1418                 {\r
1419                         return this.$.childNodes.length;\r
1420                 },\r
1421 \r
1422                 disableContextMenu : function()\r
1423                 {\r
1424                         this.on( 'contextmenu', function( event )\r
1425                                 {\r
1426                                         // Cancel the browser context menu.\r
1427                                         if ( !event.data.getTarget().hasClass( 'cke_enable_context_menu' ) )\r
1428                                                 event.data.preventDefault();\r
1429                                 } );\r
1430                 }\r
1431         });\r