_source/plugins/styles/plugin.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 CKEDITOR.plugins.add( 'styles',\r
   7 {\r
   8         requires : [ 'selection' ],\r
   9         init : function( editor )\r
  10         {\r
  11                 // This doesn't look like correct, but it's the safest way to proper\r
  12                 // pass the disableReadonlyStyling configuration to the style system\r
  13                 // without having to change any method signature in the API. (#6103)\r
  14                 editor.on( 'contentDom', function()\r
  15                         {\r
  16                                 editor.document.setCustomData( 'cke_includeReadonly', !editor.config.disableReadonlyStyling );\r
  17                         });\r
  18         }\r
  19 });\r
  20 \r
  21 /**\r
  22  * Registers a function to be called whenever a style changes its state in the\r
  23  * editing area. The current state is passed to the function. The possible\r
  24  * states are {@link CKEDITOR.TRISTATE_ON} and {@link CKEDITOR.TRISTATE_OFF}.\r
  25  * @param {CKEDITOR.style} style The style to be watched.\r
  26  * @param {Function} callback The function to be called when the style state changes.\r
  27  * @example\r
  28  * // Create a style object for the &lt;b&gt; element.\r
  29  * var style = new CKEDITOR.style( { element : 'b' } );\r
  30  * var editor = CKEDITOR.instances.editor1;\r
  31  * editor.attachStyleStateChange( style, function( state )\r
  32  *     {\r
  33  *         if ( state == CKEDITOR.TRISTATE_ON )\r
  34  *             alert( 'The current state for the B element is ON' );\r
  35  *         else\r
  36  *             alert( 'The current state for the B element is OFF' );\r
  37  *     });\r
  38  */\r
  39 CKEDITOR.editor.prototype.attachStyleStateChange = function( style, callback )\r
  40 {\r
  41         // Try to get the list of attached callbacks.\r
  42         var styleStateChangeCallbacks = this._.styleStateChangeCallbacks;\r
  43 \r
  44         // If it doesn't exist, it means this is the first call. So, let's create\r
  45         // all the structure to manage the style checks and the callback calls.\r
  46         if ( !styleStateChangeCallbacks )\r
  47         {\r
  48                 // Create the callbacks array.\r
  49                 styleStateChangeCallbacks = this._.styleStateChangeCallbacks = [];\r
  50 \r
  51                 // Attach to the selectionChange event, so we can check the styles at\r
  52                 // that point.\r
  53                 this.on( 'selectionChange', function( ev )\r
  54                         {\r
  55                                 // Loop throw all registered callbacks.\r
  56                                 for ( var i = 0 ; i < styleStateChangeCallbacks.length ; i++ )\r
  57                                 {\r
  58                                         var callback = styleStateChangeCallbacks[ i ];\r
  59 \r
  60                                         // Check the current state for the style defined for that\r
  61                                         // callback.\r
  62                                         var currentState = callback.style.checkActive( ev.data.path ) ? CKEDITOR.TRISTATE_ON : CKEDITOR.TRISTATE_OFF;\r
  63 \r
  64                                         // If the state changed since the last check.\r
  65                                         if ( callback.state !== currentState )\r
  66                                         {\r
  67                                                 // Call the callback function, passing the current\r
  68                                                 // state to it.\r
  69                                                 callback.fn.call( this, currentState );\r
  70 \r
  71                                                 // Save the current state, so it can be compared next\r
  72                                                 // time.\r
  73                                                 callback.state = currentState;\r
  74                                         }\r
  75                                 }\r
  76                         });\r
  77         }\r
  78 \r
  79         // Save the callback info, so it can be checked on the next occurrence of\r
  80         // selectionChange.\r
  81         styleStateChangeCallbacks.push( { style : style, fn : callback } );\r
  82 };\r
  83 \r
  84 CKEDITOR.STYLE_BLOCK = 1;\r
  85 CKEDITOR.STYLE_INLINE = 2;\r
  86 CKEDITOR.STYLE_OBJECT = 3;\r
  87 \r
  88 (function()\r
  89 {\r
  90         var blockElements       = { address:1,div:1,h1:1,h2:1,h3:1,h4:1,h5:1,h6:1,p:1,pre:1 };\r
  91         var objectElements      = { a:1,embed:1,hr:1,img:1,li:1,object:1,ol:1,table:1,td:1,tr:1,th:1,ul:1,dl:1,dt:1,dd:1,form:1};\r
  92 \r
  93         var semicolonFixRegex = /\s*(?:;\s*|$)/;\r
  94 \r
  95         CKEDITOR.style = function( styleDefinition, variablesValues )\r
  96         {\r
  97                 if ( variablesValues )\r
  98                 {\r
  99                         styleDefinition = CKEDITOR.tools.clone( styleDefinition );\r
 100 \r
 101                         replaceVariables( styleDefinition.attributes, variablesValues );\r
 102                         replaceVariables( styleDefinition.styles, variablesValues );\r
 103                 }\r
 104 \r
 105                 var element = this.element = ( styleDefinition.element || '*' ).toLowerCase();\r
 106 \r
 107                 this.type =\r
 108                         ( element == '#' || blockElements[ element ] ) ?\r
 109                                 CKEDITOR.STYLE_BLOCK\r
 110                         : objectElements[ element ] ?\r
 111                                 CKEDITOR.STYLE_OBJECT\r
 112                         :\r
 113                                 CKEDITOR.STYLE_INLINE;\r
 114 \r
 115                 this._ =\r
 116                 {\r
 117                         definition : styleDefinition\r
 118                 };\r
 119         };\r
 120 \r
 121         CKEDITOR.style.prototype =\r
 122         {\r
 123                 apply : function( document )\r
 124                 {\r
 125                         applyStyle.call( this, document, false );\r
 126                 },\r
 127 \r
 128                 remove : function( document )\r
 129                 {\r
 130                         applyStyle.call( this, document, true );\r
 131                 },\r
 132 \r
 133                 applyToRange : function( range )\r
 134                 {\r
 135                         return ( this.applyToRange =\r
 136                                                 this.type == CKEDITOR.STYLE_INLINE ?\r
 137                                                         applyInlineStyle\r
 138                                                 : this.type == CKEDITOR.STYLE_BLOCK ?\r
 139                                                         applyBlockStyle\r
 140                                                 : this.type == CKEDITOR.STYLE_OBJECT ?\r
 141                                                         applyObjectStyle\r
 142                                                 : null ).call( this, range );\r
 143                 },\r
 144 \r
 145                 removeFromRange : function( range )\r
 146                 {\r
 147                         return ( this.removeFromRange =\r
 148                                                 this.type == CKEDITOR.STYLE_INLINE ?\r
 149                                                         removeInlineStyle\r
 150                                                 : this.type == CKEDITOR.STYLE_OBJECT ?\r
 151                                                         removeObjectStyle\r
 152                                                 : null ).call( this, range );\r
 153                 },\r
 154 \r
 155                 applyToObject : function( element )\r
 156                 {\r
 157                         setupElement( element, this );\r
 158                 },\r
 159 \r
 160                 /**\r
 161                  * Get the style state inside an element path. Returns "true" if the\r
 162                  * element is active in the path.\r
 163                  */\r
 164                 checkActive : function( elementPath )\r
 165                 {\r
 166                         switch ( this.type )\r
 167                         {\r
 168                                 case CKEDITOR.STYLE_BLOCK :\r
 169                                         return this.checkElementRemovable( elementPath.block || elementPath.blockLimit, true );\r
 170 \r
 171                                 case CKEDITOR.STYLE_OBJECT :\r
 172                                 case CKEDITOR.STYLE_INLINE :\r
 173 \r
 174                                         var elements = elementPath.elements;\r
 175 \r
 176                                         for ( var i = 0, element ; i < elements.length ; i++ )\r
 177                                         {\r
 178                                                 element = elements[ i ];\r
 179 \r
 180                                                 if ( this.type == CKEDITOR.STYLE_INLINE\r
 181                                                           && ( element == elementPath.block || element == elementPath.blockLimit ) )\r
 182                                                         continue;\r
 183 \r
 184                                                 if( this.type == CKEDITOR.STYLE_OBJECT\r
 185                                                          && !( element.getName() in objectElements ) )\r
 186                                                                 continue;\r
 187 \r
 188                                                 if ( this.checkElementRemovable( element, true ) )\r
 189                                                         return true;\r
 190                                         }\r
 191                         }\r
 192                         return false;\r
 193                 },\r
 194 \r
 195                 /**\r
 196                  * Whether this style can be applied at the element path.\r
 197                  * @param elementPath\r
 198                  */\r
 199                 checkApplicable : function( elementPath )\r
 200                 {\r
 201                         switch ( this.type )\r
 202                         {\r
 203                                 case CKEDITOR.STYLE_INLINE :\r
 204                                 case CKEDITOR.STYLE_BLOCK :\r
 205                                         break;\r
 206 \r
 207                                 case CKEDITOR.STYLE_OBJECT :\r
 208                                         return elementPath.lastElement.getAscendant( this.element, true );\r
 209                         }\r
 210 \r
 211                         return true;\r
 212                 },\r
 213 \r
 214                 // Checks if an element, or any of its attributes, is removable by the\r
 215                 // current style definition.\r
 216                 checkElementRemovable : function( element, fullMatch )\r
 217                 {\r
 218                         if ( !element )\r
 219                                 return false;\r
 220 \r
 221                         var def = this._.definition,\r
 222                                 attribs;\r
 223 \r
 224                         // If the element name is the same as the style name.\r
 225                         if ( element.getName() == this.element )\r
 226                         {\r
 227                                 // If no attributes are defined in the element.\r
 228                                 if ( !fullMatch && !element.hasAttributes() )\r
 229                                         return true;\r
 230 \r
 231                                 attribs = getAttributesForComparison( def );\r
 232 \r
 233                                 if ( attribs._length )\r
 234                                 {\r
 235                                         for ( var attName in attribs )\r
 236                                         {\r
 237                                                 if ( attName == '_length' )\r
 238                                                         continue;\r
 239 \r
 240                                                 var elementAttr = element.getAttribute( attName ) || '';\r
 241 \r
 242                                                 // Special treatment for 'style' attribute is required.\r
 243                                                 if ( attName == 'style' ?\r
 244                                                         compareCssText( attribs[ attName ], normalizeCssText( elementAttr, false ) )\r
 245                                                         : attribs[ attName ] == elementAttr  )\r
 246                                                 {\r
 247                                                         if ( !fullMatch )\r
 248                                                                 return true;\r
 249                                                 }\r
 250                                                 else if ( fullMatch )\r
 251                                                                 return false;\r
 252                                         }\r
 253                                         if ( fullMatch )\r
 254                                                 return true;\r
 255                                 }\r
 256                                 else\r
 257                                         return true;\r
 258                         }\r
 259 \r
 260                         // Check if the element can be somehow overriden.\r
 261                         var override = getOverrides( this )[ element.getName() ] ;\r
 262                         if ( override )\r
 263                         {\r
 264                                 // If no attributes have been defined, remove the element.\r
 265                                 if ( !( attribs = override.attributes ) )\r
 266                                         return true;\r
 267 \r
 268                                 for ( var i = 0 ; i < attribs.length ; i++ )\r
 269                                 {\r
 270                                         attName = attribs[i][0];\r
 271                                         var actualAttrValue = element.getAttribute( attName );\r
 272                                         if ( actualAttrValue )\r
 273                                         {\r
 274                                                 var attValue = attribs[i][1];\r
 275 \r
 276                                                 // Remove the attribute if:\r
 277                                                 //    - The override definition value is null;\r
 278                                                 //    - The override definition value is a string that\r
 279                                                 //      matches the attribute value exactly.\r
 280                                                 //    - The override definition value is a regex that\r
 281                                                 //      has matches in the attribute value.\r
 282                                                 if ( attValue === null ||\r
 283                                                                 ( typeof attValue == 'string' && actualAttrValue == attValue ) ||\r
 284                                                                 attValue.test( actualAttrValue ) )\r
 285                                                         return true;\r
 286                                         }\r
 287                                 }\r
 288                         }\r
 289                         return false;\r
 290                 },\r
 291 \r
 292                 // Builds the preview HTML based on the styles definition.\r
 293                 buildPreview : function()\r
 294                 {\r
 295                         var styleDefinition = this._.definition,\r
 296                                 html = [],\r
 297                                 elementName = styleDefinition.element;\r
 298 \r
 299                         // Avoid <bdo> in the preview.\r
 300                         if ( elementName == 'bdo' )\r
 301                                 elementName = 'span';\r
 302 \r
 303                         html = [ '<', elementName ];\r
 304 \r
 305                         // Assign all defined attributes.\r
 306                         var attribs     = styleDefinition.attributes;\r
 307                         if ( attribs )\r
 308                         {\r
 309                                 for ( var att in attribs )\r
 310                                 {\r
 311                                         html.push( ' ', att, '="', attribs[ att ], '"' );\r
 312                                 }\r
 313                         }\r
 314 \r
 315                         // Assign the style attribute.\r
 316                         var cssStyle = CKEDITOR.style.getStyleText( styleDefinition );\r
 317                         if ( cssStyle )\r
 318                                 html.push( ' style="', cssStyle, '"' );\r
 319 \r
 320                         html.push( '>', styleDefinition.name, '</', elementName, '>' );\r
 321 \r
 322                         return html.join( '' );\r
 323                 }\r
 324         };\r
 325 \r
 326         // Build the cssText based on the styles definition.\r
 327         CKEDITOR.style.getStyleText = function( styleDefinition )\r
 328         {\r
 329                 // If we have already computed it, just return it.\r
 330                 var stylesDef = styleDefinition._ST;\r
 331                 if ( stylesDef )\r
 332                         return stylesDef;\r
 333 \r
 334                 stylesDef = styleDefinition.styles;\r
 335 \r
 336                 // Builds the StyleText.\r
 337                 var stylesText = ( styleDefinition.attributes && styleDefinition.attributes[ 'style' ] ) || '',\r
 338                                 specialStylesText = '';\r
 339 \r
 340                 if ( stylesText.length )\r
 341                         stylesText = stylesText.replace( semicolonFixRegex, ';' );\r
 342 \r
 343                 for ( var style in stylesDef )\r
 344                 {\r
 345                         var styleVal = stylesDef[ style ],\r
 346                                         text = ( style + ':' + styleVal ).replace( semicolonFixRegex, ';' );\r
 347 \r
 348                         // Some browsers don't support 'inherit' property value, leave them intact. (#5242)\r
 349                         if ( styleVal == 'inherit' )\r
 350                                 specialStylesText += text;\r
 351                         else\r
 352                                 stylesText += text;\r
 353                 }\r
 354 \r
 355                 // Browsers make some changes to the style when applying them. So, here\r
 356                 // we normalize it to the browser format.\r
 357                 if ( stylesText.length )\r
 358                         stylesText = normalizeCssText( stylesText );\r
 359 \r
 360                 stylesText += specialStylesText;\r
 361 \r
 362                 // Return it, saving it to the next request.\r
 363                 return ( styleDefinition._ST = stylesText );\r
 364         };\r
 365 \r
 366         // Gets the parent element which blocks the styling for an element. This\r
 367         // can be done through read-only elements (contenteditable=false) or\r
 368         // elements with the "data-cke-nostyle" attribute.\r
 369         function getUnstylableParent( element )\r
 370         {\r
 371                 var unstylable,\r
 372                         editable;\r
 373 \r
 374                 while ( ( element = element.getParent() ) )\r
 375                 {\r
 376                         if ( element.getName() == 'body' )\r
 377                                 break;\r
 378 \r
 379                         if ( element.getAttribute( 'data-cke-nostyle' ) )\r
 380                                 unstylable = element;\r
 381                         else if ( !editable )\r
 382                         {\r
 383                                 var contentEditable = element.getAttribute( 'contentEditable' );\r
 384 \r
 385                                 if ( contentEditable == 'false' )\r
 386                                         unstylable = element;\r
 387                                 else if ( contentEditable == 'true' )\r
 388                                         editable = 1;\r
 389                         }\r
 390                 }\r
 391 \r
 392                 return unstylable;\r
 393         }\r
 394 \r
 395         function applyInlineStyle( range )\r
 396         {\r
 397                 var document = range.document;\r
 398 \r
 399                 if ( range.collapsed )\r
 400                 {\r
 401                         // Create the element to be inserted in the DOM.\r
 402                         var collapsedElement = getElement( this, document );\r
 403 \r
 404                         // Insert the empty element into the DOM at the range position.\r
 405                         range.insertNode( collapsedElement );\r
 406 \r
 407                         // Place the selection right inside the empty element.\r
 408                         range.moveToPosition( collapsedElement, CKEDITOR.POSITION_BEFORE_END );\r
 409 \r
 410                         return;\r
 411                 }\r
 412 \r
 413                 var elementName = this.element;\r
 414                 var def = this._.definition;\r
 415                 var isUnknownElement;\r
 416 \r
 417                 // Indicates that fully selected read-only elements are to be included in the styling range.\r
 418                 var includeReadonly = def.includeReadonly;\r
 419 \r
 420                 // If the read-only inclusion is not available in the definition, try\r
 421                 // to get it from the document data.\r
 422                 if ( includeReadonly == undefined )\r
 423                         includeReadonly = document.getCustomData( 'cke_includeReadonly' );\r
 424 \r
 425                 // Get the DTD definition for the element. Defaults to "span".\r
 426                 var dtd = CKEDITOR.dtd[ elementName ] || ( isUnknownElement = true, CKEDITOR.dtd.span );\r
 427 \r
 428                 // Expand the range.\r
 429                 range.enlarge( CKEDITOR.ENLARGE_ELEMENT );\r
 430                 range.trim();\r
 431 \r
 432                 // Get the first node to be processed and the last, which concludes the\r
 433                 // processing.\r
 434                 var boundaryNodes = range.createBookmark(),\r
 435                         firstNode = boundaryNodes.startNode,\r
 436                         lastNode = boundaryNodes.endNode;\r
 437 \r
 438                 var currentNode = firstNode;\r
 439 \r
 440                 var styleRange;\r
 441 \r
 442                 // Check if the boundaries are inside non stylable elements.\r
 443                 var firstUnstylable = getUnstylableParent( firstNode ),\r
 444                         lastUnstylable = getUnstylableParent( lastNode );\r
 445 \r
 446                 // If the first element can't be styled, we'll start processing right\r
 447                 // after its unstylable root.\r
 448                 if ( firstUnstylable )\r
 449                         currentNode = firstUnstylable.getNextSourceNode( true );\r
 450 \r
 451                 // If the last element can't be styled, we'll stop processing on its\r
 452                 // unstylable root.\r
 453                 if ( lastUnstylable )\r
 454                         lastNode = lastUnstylable;\r
 455 \r
 456                 // Do nothing if the current node now follows the last node to be processed.\r
 457                 if ( currentNode.getPosition( lastNode ) == CKEDITOR.POSITION_FOLLOWING )\r
 458                         currentNode = 0;\r
 459 \r
 460                 while ( currentNode )\r
 461                 {\r
 462                         var applyStyle = false;\r
 463 \r
 464                         if ( currentNode.equals( lastNode ) )\r
 465                         {\r
 466                                 currentNode = null;\r
 467                                 applyStyle = true;\r
 468                         }\r
 469                         else\r
 470                         {\r
 471                                 var nodeType = currentNode.type;\r
 472                                 var nodeName = nodeType == CKEDITOR.NODE_ELEMENT ? currentNode.getName() : null;\r
 473                                 var nodeIsReadonly = nodeName && ( currentNode.getAttribute( 'contentEditable' ) == 'false' );\r
 474                                 var nodeIsNoStyle = nodeName && currentNode.getAttribute( 'data-cke-nostyle' );\r
 475 \r
 476                                 if ( nodeName && currentNode.data( 'cke-bookmark' ) )\r
 477                                 {\r
 478                                         currentNode = currentNode.getNextSourceNode( true );\r
 479                                         continue;\r
 480                                 }\r
 481 \r
 482                                 // Check if the current node can be a child of the style element.\r
 483                                 if ( !nodeName || ( dtd[ nodeName ]\r
 484                                         && !nodeIsNoStyle\r
 485                                         && ( !nodeIsReadonly || includeReadonly )\r
 486                                         && ( currentNode.getPosition( lastNode ) | CKEDITOR.POSITION_PRECEDING | CKEDITOR.POSITION_IDENTICAL | CKEDITOR.POSITION_IS_CONTAINED ) == ( CKEDITOR.POSITION_PRECEDING + CKEDITOR.POSITION_IDENTICAL + CKEDITOR.POSITION_IS_CONTAINED )\r
 487                                         && ( !def.childRule || def.childRule( currentNode ) ) ) )\r
 488                                 {\r
 489                                         var currentParent = currentNode.getParent();\r
 490 \r
 491                                         // Check if the style element can be a child of the current\r
 492                                         // node parent or if the element is not defined in the DTD.\r
 493                                         if ( currentParent\r
 494                                                 && ( ( currentParent.getDtd() || CKEDITOR.dtd.span )[ elementName ] || isUnknownElement )\r
 495                                                 && ( !def.parentRule || def.parentRule( currentParent ) ) )\r
 496                                         {\r
 497                                                 // This node will be part of our range, so if it has not\r
 498                                                 // been started, place its start right before the node.\r
 499                                                 // In the case of an element node, it will be included\r
 500                                                 // only if it is entirely inside the range.\r
 501                                                 if ( !styleRange && ( !nodeName || !CKEDITOR.dtd.$removeEmpty[ nodeName ] || ( currentNode.getPosition( lastNode ) | CKEDITOR.POSITION_PRECEDING | CKEDITOR.POSITION_IDENTICAL | CKEDITOR.POSITION_IS_CONTAINED ) == ( CKEDITOR.POSITION_PRECEDING + CKEDITOR.POSITION_IDENTICAL + CKEDITOR.POSITION_IS_CONTAINED ) ) )\r
 502                                                 {\r
 503                                                         styleRange = new CKEDITOR.dom.range( document );\r
 504                                                         styleRange.setStartBefore( currentNode );\r
 505                                                 }\r
 506 \r
 507                                                 // Non element nodes, readonly elements, or empty\r
 508                                                 // elements can be added completely to the range.\r
 509                                                 if ( nodeType == CKEDITOR.NODE_TEXT || nodeIsReadonly || ( nodeType == CKEDITOR.NODE_ELEMENT && !currentNode.getChildCount() ) )\r
 510                                                 {\r
 511                                                         var includedNode = currentNode;\r
 512                                                         var parentNode;\r
 513 \r
 514                                                         // This node is about to be included completelly, but,\r
 515                                                         // if this is the last node in its parent, we must also\r
 516                                                         // check if the parent itself can be added completelly\r
 517                                                         // to the range.\r
 518                                                         while ( !includedNode.$.nextSibling\r
 519                                                                 && ( parentNode = includedNode.getParent(), dtd[ parentNode.getName() ] )\r
 520                                                                 && ( parentNode.getPosition( firstNode ) | CKEDITOR.POSITION_FOLLOWING | CKEDITOR.POSITION_IDENTICAL | CKEDITOR.POSITION_IS_CONTAINED ) == ( CKEDITOR.POSITION_FOLLOWING + CKEDITOR.POSITION_IDENTICAL + CKEDITOR.POSITION_IS_CONTAINED )\r
 521                                                                 && ( !def.childRule || def.childRule( parentNode ) ) )\r
 522                                                         {\r
 523                                                                 includedNode = parentNode;\r
 524                                                         }\r
 525 \r
 526                                                         styleRange.setEndAfter( includedNode );\r
 527 \r
 528                                                         // If the included node still is the last node in its\r
 529                                                         // parent, it means that the parent can't be included\r
 530                                                         // in this style DTD, so apply the style immediately.\r
 531                                                         if ( !includedNode.$.nextSibling )\r
 532                                                                 applyStyle = true;\r
 533                                                 }\r
 534                                         }\r
 535                                         else\r
 536                                                 applyStyle = true;\r
 537                                 }\r
 538                                 else\r
 539                                         applyStyle = true;\r
 540 \r
 541                                 // Get the next node to be processed.\r
 542                                 currentNode = currentNode.getNextSourceNode( nodeIsNoStyle || nodeIsReadonly );\r
 543                         }\r
 544 \r
 545                         // Apply the style if we have something to which apply it.\r
 546                         if ( applyStyle && styleRange && !styleRange.collapsed )\r
 547                         {\r
 548                                 // Build the style element, based on the style object definition.\r
 549                                 var styleNode = getElement( this, document ),\r
 550                                         styleHasAttrs = styleNode.hasAttributes();\r
 551 \r
 552                                 // Get the element that holds the entire range.\r
 553                                 var parent = styleRange.getCommonAncestor();\r
 554 \r
 555                                 var removeList = {\r
 556                                         styles : {},\r
 557                                         attrs : {},\r
 558                                         // Styles cannot be removed.\r
 559                                         blockedStyles : {},\r
 560                                         // Attrs cannot be removed.\r
 561                                         blockedAttrs : {}\r
 562                                 };\r
 563 \r
 564                                 var attName, styleName, value;\r
 565 \r
 566                                 // Loop through the parents, removing the redundant attributes\r
 567                                 // from the element to be applied.\r
 568                                 while ( styleNode && parent )\r
 569                                 {\r
 570                                         if ( parent.getName() == elementName )\r
 571                                         {\r
 572                                                 for ( attName in def.attributes )\r
 573                                                 {\r
 574                                                         if ( removeList.blockedAttrs[ attName ] || !( value = parent.getAttribute( styleName ) ) )\r
 575                                                                 continue;\r
 576 \r
 577                                                         if ( styleNode.getAttribute( attName ) == value )\r
 578                                                                 removeList.attrs[ attName ] = 1;\r
 579                                                         else\r
 580                                                                 removeList.blockedAttrs[ attName ] = 1;\r
 581                                                 }\r
 582 \r
 583                                                 for ( styleName in def.styles )\r
 584                                                 {\r
 585                                                         if ( removeList.blockedStyles[ styleName ] || !( value = parent.getStyle( styleName ) ) )\r
 586                                                                 continue;\r
 587 \r
 588                                                         if ( styleNode.getStyle( styleName ) == value )\r
 589                                                                 removeList.styles[ styleName ] = 1;\r
 590                                                         else\r
 591                                                                 removeList.blockedStyles[ styleName ] = 1;\r
 592                                                 }\r
 593                                         }\r
 594 \r
 595                                         parent = parent.getParent();\r
 596                                 }\r
 597 \r
 598                                 for ( attName in removeList.attrs )\r
 599                                         styleNode.removeAttribute( attName );\r
 600 \r
 601                                 for ( styleName in removeList.styles )\r
 602                                         styleNode.removeStyle( styleName );\r
 603 \r
 604                                 if ( styleHasAttrs && !styleNode.hasAttributes() )\r
 605                                         styleNode = null;\r
 606 \r
 607                                 if ( styleNode )\r
 608                                 {\r
 609                                         // Move the contents of the range to the style element.\r
 610                                         styleRange.extractContents().appendTo( styleNode );\r
 611 \r
 612                                         // Here we do some cleanup, removing all duplicated\r
 613                                         // elements from the style element.\r
 614                                         removeFromInsideElement( this, styleNode );\r
 615 \r
 616                                         // Insert it into the range position (it is collapsed after\r
 617                                         // extractContents.\r
 618                                         styleRange.insertNode( styleNode );\r
 619 \r
 620                                         // Let's merge our new style with its neighbors, if possible.\r
 621                                         styleNode.mergeSiblings();\r
 622 \r
 623                                         // As the style system breaks text nodes constantly, let's normalize\r
 624                                         // things for performance.\r
 625                                         // With IE, some paragraphs get broken when calling normalize()\r
 626                                         // repeatedly. Also, for IE, we must normalize body, not documentElement.\r
 627                                         // IE is also known for having a "crash effect" with normalize().\r
 628                                         // We should try to normalize with IE too in some way, somewhere.\r
 629                                         if ( !CKEDITOR.env.ie )\r
 630                                                 styleNode.$.normalize();\r
 631                                 }\r
 632                                 // Style already inherit from parents, left just to clear up any internal overrides. (#5931)\r
 633                                 else\r
 634                                 {\r
 635                                         styleNode = new CKEDITOR.dom.element( 'span' );\r
 636                                         styleRange.extractContents().appendTo( styleNode );\r
 637                                         styleRange.insertNode( styleNode );\r
 638                                         removeFromInsideElement( this, styleNode );\r
 639                                         styleNode.remove( true );\r
 640                                 }\r
 641 \r
 642                                 // Style applied, let's release the range, so it gets\r
 643                                 // re-initialization in the next loop.\r
 644                                 styleRange = null;\r
 645                         }\r
 646                 }\r
 647 \r
 648                 // Remove the bookmark nodes.\r
 649                 range.moveToBookmark( boundaryNodes );\r
 650 \r
 651                 // Minimize the result range to exclude empty text nodes. (#5374)\r
 652                 range.shrink( CKEDITOR.SHRINK_TEXT );\r
 653         }\r
 654 \r
 655         function removeInlineStyle( range )\r
 656         {\r
 657                 /*\r
 658                  * Make sure our range has included all "collpased" parent inline nodes so\r
 659                  * that our operation logic can be simpler.\r
 660                  */\r
 661                 range.enlarge( CKEDITOR.ENLARGE_ELEMENT );\r
 662 \r
 663                 var bookmark = range.createBookmark(),\r
 664                         startNode = bookmark.startNode;\r
 665 \r
 666                 if ( range.collapsed )\r
 667                 {\r
 668 \r
 669                         var startPath = new CKEDITOR.dom.elementPath( startNode.getParent() ),\r
 670                                 // The topmost element in elementspatch which we should jump out of.\r
 671                                 boundaryElement;\r
 672 \r
 673 \r
 674                         for ( var i = 0, element ; i < startPath.elements.length\r
 675                                         && ( element = startPath.elements[i] ) ; i++ )\r
 676                         {\r
 677                                 /*\r
 678                                  * 1. If it's collaped inside text nodes, try to remove the style from the whole element.\r
 679                                  *\r
 680                                  * 2. Otherwise if it's collapsed on element boundaries, moving the selection\r
 681                                  *  outside the styles instead of removing the whole tag,\r
 682                                  *  also make sure other inner styles were well preserverd.(#3309)\r
 683                                  */\r
 684                                 if ( element == startPath.block || element == startPath.blockLimit )\r
 685                                         break;\r
 686 \r
 687                                 if ( this.checkElementRemovable( element ) )\r
 688                                 {\r
 689                                         var isStart;\r
 690 \r
 691                                         if ( range.collapsed && (\r
 692                                                  range.checkBoundaryOfElement( element, CKEDITOR.END ) ||\r
 693                                                  ( isStart = range.checkBoundaryOfElement( element, CKEDITOR.START ) ) ) )\r
 694                                         {\r
 695                                                 boundaryElement = element;\r
 696                                                 boundaryElement.match = isStart ? 'start' : 'end';\r
 697                                         }\r
 698                                         else\r
 699                                         {\r
 700                                                 /*\r
 701                                                  * Before removing the style node, there may be a sibling to the style node\r
 702                                                  * that's exactly the same to the one to be removed. To the user, it makes\r
 703                                                  * no difference that they're separate entities in the DOM tree. So, merge\r
 704                                                  * them before removal.\r
 705                                                  */\r
 706                                                 element.mergeSiblings();\r
 707                                                 removeFromElement( this, element );\r
 708 \r
 709                                         }\r
 710                                 }\r
 711                         }\r
 712 \r
 713                         // Re-create the style tree after/before the boundary element,\r
 714                         // the replication start from bookmark start node to define the\r
 715                         // new range.\r
 716                         if ( boundaryElement )\r
 717                         {\r
 718                                 var clonedElement = startNode;\r
 719                                 for ( i = 0 ;; i++ )\r
 720                                 {\r
 721                                         var newElement = startPath.elements[ i ];\r
 722                                         if ( newElement.equals( boundaryElement ) )\r
 723                                                 break;\r
 724                                         // Avoid copying any matched element.\r
 725                                         else if ( newElement.match )\r
 726                                                 continue;\r
 727                                         else\r
 728                                                 newElement = newElement.clone();\r
 729                                         newElement.append( clonedElement );\r
 730                                         clonedElement = newElement;\r
 731                                 }\r
 732                                 clonedElement[ boundaryElement.match == 'start' ?\r
 733                                                         'insertBefore' : 'insertAfter' ]( boundaryElement );\r
 734                         }\r
 735                 }\r
 736                 else\r
 737                 {\r
 738                         /*\r
 739                          * Now our range isn't collapsed. Lets walk from the start node to the end\r
 740                          * node via DFS and remove the styles one-by-one.\r
 741                          */\r
 742                         var endNode = bookmark.endNode,\r
 743                                 me = this;\r
 744 \r
 745                         /*\r
 746                          * Find out the style ancestor that needs to be broken down at startNode\r
 747                          * and endNode.\r
 748                          */\r
 749                         function breakNodes()\r
 750                         {\r
 751                                 var startPath = new CKEDITOR.dom.elementPath( startNode.getParent() ),\r
 752                                         endPath = new CKEDITOR.dom.elementPath( endNode.getParent() ),\r
 753                                         breakStart = null,\r
 754                                         breakEnd = null;\r
 755                                 for ( var i = 0 ; i < startPath.elements.length ; i++ )\r
 756                                 {\r
 757                                         var element = startPath.elements[ i ];\r
 758 \r
 759                                         if ( element == startPath.block || element == startPath.blockLimit )\r
 760                                                 break;\r
 761 \r
 762                                         if ( me.checkElementRemovable( element ) )\r
 763                                                 breakStart = element;\r
 764                                 }\r
 765                                 for ( i = 0 ; i < endPath.elements.length ; i++ )\r
 766                                 {\r
 767                                         element = endPath.elements[ i ];\r
 768 \r
 769                                         if ( element == endPath.block || element == endPath.blockLimit )\r
 770                                                 break;\r
 771 \r
 772                                         if ( me.checkElementRemovable( element ) )\r
 773                                                 breakEnd = element;\r
 774                                 }\r
 775 \r
 776                                 if ( breakEnd )\r
 777                                         endNode.breakParent( breakEnd );\r
 778                                 if ( breakStart )\r
 779                                         startNode.breakParent( breakStart );\r
 780                         }\r
 781                         breakNodes();\r
 782 \r
 783                         // Now, do the DFS walk.\r
 784                         var currentNode = startNode.getNext();\r
 785                         while ( !currentNode.equals( endNode ) )\r
 786                         {\r
 787                                 /*\r
 788                                  * Need to get the next node first because removeFromElement() can remove\r
 789                                  * the current node from DOM tree.\r
 790                                  */\r
 791                                 var nextNode = currentNode.getNextSourceNode();\r
 792                                 if ( currentNode.type == CKEDITOR.NODE_ELEMENT && this.checkElementRemovable( currentNode ) )\r
 793                                 {\r
 794                                         // Remove style from element or overriding element.\r
 795                                         if ( currentNode.getName() == this.element )\r
 796                                                 removeFromElement( this, currentNode );\r
 797                                         else\r
 798                                                 removeOverrides( currentNode, getOverrides( this )[ currentNode.getName() ] );\r
 799 \r
 800                                         /*\r
 801                                          * removeFromElement() may have merged the next node with something before\r
 802                                          * the startNode via mergeSiblings(). In that case, the nextNode would\r
 803                                          * contain startNode and we'll have to call breakNodes() again and also\r
 804                                          * reassign the nextNode to something after startNode.\r
 805                                          */\r
 806                                         if ( nextNode.type == CKEDITOR.NODE_ELEMENT && nextNode.contains( startNode ) )\r
 807                                         {\r
 808                                                 breakNodes();\r
 809                                                 nextNode = startNode.getNext();\r
 810                                         }\r
 811                                 }\r
 812                                 currentNode = nextNode;\r
 813                         }\r
 814                 }\r
 815 \r
 816                 range.moveToBookmark( bookmark );\r
 817 }\r
 818 \r
 819         function applyObjectStyle( range )\r
 820         {\r
 821                 var root = range.getCommonAncestor( true, true ),\r
 822                                 element = root.getAscendant( this.element, true );\r
 823                 element && setupElement( element, this );\r
 824         }\r
 825 \r
 826         function removeObjectStyle( range )\r
 827         {\r
 828                 var root = range.getCommonAncestor( true, true ),\r
 829                                 element = root.getAscendant( this.element, true );\r
 830 \r
 831                 if ( !element )\r
 832                         return;\r
 833 \r
 834                 var style = this;\r
 835                 var def = style._.definition;\r
 836                 var attributes = def.attributes;\r
 837                 var styles = CKEDITOR.style.getStyleText( def );\r
 838 \r
 839                 // Remove all defined attributes.\r
 840                 if ( attributes )\r
 841                 {\r
 842                         for ( var att in attributes )\r
 843                         {\r
 844                                 element.removeAttribute( att, attributes[ att ] );\r
 845                         }\r
 846                 }\r
 847 \r
 848                 // Assign all defined styles.\r
 849                 if ( def.styles )\r
 850                 {\r
 851                         for ( var i in def.styles )\r
 852                         {\r
 853                                 if ( !def.styles.hasOwnProperty( i ) )\r
 854                                         continue;\r
 855 \r
 856                                 element.removeStyle( i );\r
 857                         }\r
 858                 }\r
 859         }\r
 860 \r
 861         function applyBlockStyle( range )\r
 862         {\r
 863                 // Serializible bookmarks is needed here since\r
 864                 // elements may be merged.\r
 865                 var bookmark = range.createBookmark( true );\r
 866 \r
 867                 var iterator = range.createIterator();\r
 868                 iterator.enforceRealBlocks = true;\r
 869 \r
 870                 // make recognize <br /> tag as a separator in ENTER_BR mode (#5121)\r
 871                 if ( this._.enterMode )\r
 872                         iterator.enlargeBr = ( this._.enterMode != CKEDITOR.ENTER_BR );\r
 873 \r
 874                 var block;\r
 875                 var doc = range.document;\r
 876                 var previousPreBlock;\r
 877 \r
 878                 while ( ( block = iterator.getNextParagraph() ) )               // Only one =\r
 879                 {\r
 880                         var newBlock = getElement( this, doc, block );\r
 881                         replaceBlock( block, newBlock );\r
 882                 }\r
 883 \r
 884                 range.moveToBookmark( bookmark );\r
 885         }\r
 886 \r
 887         // Replace the original block with new one, with special treatment\r
 888         // for <pre> blocks to make sure content format is well preserved, and merging/splitting adjacent\r
 889         // when necessary.(#3188)\r
 890         function replaceBlock( block, newBlock )\r
 891         {\r
 892                 var newBlockIsPre       = newBlock.is( 'pre' );\r
 893                 var blockIsPre          = block.is( 'pre' );\r
 894 \r
 895                 var isToPre     = newBlockIsPre && !blockIsPre;\r
 896                 var isFromPre   = !newBlockIsPre && blockIsPre;\r
 897 \r
 898                 if ( isToPre )\r
 899                         newBlock = toPre( block, newBlock );\r
 900                 else if ( isFromPre )\r
 901                         // Split big <pre> into pieces before start to convert.\r
 902                         newBlock = fromPres( splitIntoPres( block ), newBlock );\r
 903                 else\r
 904                         block.moveChildren( newBlock );\r
 905 \r
 906                 newBlock.replace( block );\r
 907 \r
 908                 if ( newBlockIsPre )\r
 909                 {\r
 910                         // Merge previous <pre> blocks.\r
 911                         mergePre( newBlock );\r
 912                 }\r
 913         }\r
 914 \r
 915         var nonWhitespaces = CKEDITOR.dom.walker.whitespaces( true );\r
 916         /**\r
 917          * Merge a <pre> block with a previous sibling if available.\r
 918          */\r
 919         function mergePre( preBlock )\r
 920         {\r
 921                 var previousBlock;\r
 922                 if ( !( ( previousBlock = preBlock.getPrevious( nonWhitespaces ) )\r
 923                                  && previousBlock.is\r
 924                                  && previousBlock.is( 'pre') ) )\r
 925                         return;\r
 926 \r
 927                 // Merge the previous <pre> block contents into the current <pre>\r
 928                 // block.\r
 929                 //\r
 930                 // Another thing to be careful here is that currentBlock might contain\r
 931                 // a '\n' at the beginning, and previousBlock might contain a '\n'\r
 932                 // towards the end. These new lines are not normally displayed but they\r
 933                 // become visible after merging.\r
 934                 var mergedHtml = replace( previousBlock.getHtml(), /\n$/, '' ) + '\n\n' +\r
 935                                 replace( preBlock.getHtml(), /^\n/, '' ) ;\r
 936 \r
 937                 // Krugle: IE normalizes innerHTML from <pre>, breaking whitespaces.\r
 938                 if ( CKEDITOR.env.ie )\r
 939                         preBlock.$.outerHTML = '<pre>' + mergedHtml + '</pre>';\r
 940                 else\r
 941                         preBlock.setHtml( mergedHtml );\r
 942 \r
 943                 previousBlock.remove();\r
 944         }\r
 945 \r
 946         /**\r
 947          * Split into multiple <pre> blocks separated by double line-break.\r
 948          * @param preBlock\r
 949          */\r
 950         function splitIntoPres( preBlock )\r
 951         {\r
 952                 // Exclude the ones at header OR at tail,\r
 953                 // and ignore bookmark content between them.\r
 954                 var duoBrRegex = /(\S\s*)\n(?:\s|(<span[^>]+data-cke-bookmark.*?\/span>))*\n(?!$)/gi,\r
 955                         blockName = preBlock.getName(),\r
 956                         splitedHtml = replace( preBlock.getOuterHtml(),\r
 957                                 duoBrRegex,\r
 958                                 function( match, charBefore, bookmark )\r
 959                                 {\r
 960                                   return charBefore + '</pre>' + bookmark + '<pre>';\r
 961                                 } );\r
 962 \r
 963                 var pres = [];\r
 964                 splitedHtml.replace( /<pre\b.*?>([\s\S]*?)<\/pre>/gi, function( match, preContent ){\r
 965                         pres.push( preContent );\r
 966                 } );\r
 967                 return pres;\r
 968         }\r
 969 \r
 970         // Wrapper function of String::replace without considering of head/tail bookmarks nodes.\r
 971         function replace( str, regexp, replacement )\r
 972         {\r
 973                 var headBookmark = '',\r
 974                         tailBookmark = '';\r
 975 \r
 976                 str = str.replace( /(^<span[^>]+data-cke-bookmark.*?\/span>)|(<span[^>]+data-cke-bookmark.*?\/span>$)/gi,\r
 977                         function( str, m1, m2 ){\r
 978                                         m1 && ( headBookmark = m1 );\r
 979                                         m2 && ( tailBookmark = m2 );\r
 980                                 return '';\r
 981                         } );\r
 982                 return headBookmark + str.replace( regexp, replacement ) + tailBookmark;\r
 983         }\r
 984         /**\r
 985          * Converting a list of <pre> into blocks with format well preserved.\r
 986          */\r
 987         function fromPres( preHtmls, newBlock )\r
 988         {\r
 989                 var docFrag = new CKEDITOR.dom.documentFragment( newBlock.getDocument() );\r
 990                 for ( var i = 0 ; i < preHtmls.length ; i++ )\r
 991                 {\r
 992                         var blockHtml = preHtmls[ i ];\r
 993 \r
 994                         // 1. Trim the first and last line-breaks immediately after and before <pre>,\r
 995                         // they're not visible.\r
 996                          blockHtml =  blockHtml.replace( /(\r\n|\r)/g, '\n' ) ;\r
 997                          blockHtml = replace(  blockHtml, /^[ \t]*\n/, '' ) ;\r
 998                          blockHtml = replace(  blockHtml, /\n$/, '' ) ;\r
 999                         // 2. Convert spaces or tabs at the beginning or at the end to &nbsp;\r
1000                          blockHtml = replace(  blockHtml, /^[ \t]+|[ \t]+$/g, function( match, offset, s )\r
1001                                         {\r
1002                                                 if ( match.length == 1 )        // one space, preserve it\r
1003                                                         return '&nbsp;' ;\r
1004                                                 else if ( !offset )             // beginning of block\r
1005                                                         return CKEDITOR.tools.repeat( '&nbsp;', match.length - 1 ) + ' ';\r
1006                                                 else                            // end of block\r
1007                                                         return ' ' + CKEDITOR.tools.repeat( '&nbsp;', match.length - 1 );\r
1008                                         } ) ;\r
1009 \r
1010                         // 3. Convert \n to <BR>.\r
1011                         // 4. Convert contiguous (i.e. non-singular) spaces or tabs to &nbsp;\r
1012                          blockHtml =  blockHtml.replace( /\n/g, '<br>' ) ;\r
1013                          blockHtml =  blockHtml.replace( /[ \t]{2,}/g,\r
1014                                         function ( match )\r
1015                                         {\r
1016                                                 return CKEDITOR.tools.repeat( '&nbsp;', match.length - 1 ) + ' ' ;\r
1017                                         } ) ;\r
1018 \r
1019                         var newBlockClone = newBlock.clone();\r
1020                         newBlockClone.setHtml(  blockHtml );\r
1021                         docFrag.append( newBlockClone );\r
1022                 }\r
1023                 return docFrag;\r
1024         }\r
1025 \r
1026         /**\r
1027          * Converting from a non-PRE block to a PRE block in formatting operations.\r
1028          */\r
1029         function toPre( block, newBlock )\r
1030         {\r
1031                 // First trim the block content.\r
1032                 var preHtml = block.getHtml();\r
1033 \r
1034                 // 1. Trim head/tail spaces, they're not visible.\r
1035                 preHtml = replace( preHtml, /(?:^[ \t\n\r]+)|(?:[ \t\n\r]+$)/g, '' );\r
1036                 // 2. Delete ANSI whitespaces immediately before and after <BR> because\r
1037                 //    they are not visible.\r
1038                 preHtml = preHtml.replace( /[ \t\r\n]*(<br[^>]*>)[ \t\r\n]*/gi, '$1' );\r
1039                 // 3. Compress other ANSI whitespaces since they're only visible as one\r
1040                 //    single space previously.\r
1041                 // 4. Convert &nbsp; to spaces since &nbsp; is no longer needed in <PRE>.\r
1042                 preHtml = preHtml.replace( /([ \t\n\r]+|&nbsp;)/g, ' ' );\r
1043                 // 5. Convert any <BR /> to \n. This must not be done earlier because\r
1044                 //    the \n would then get compressed.\r
1045                 preHtml = preHtml.replace( /<br\b[^>]*>/gi, '\n' );\r
1046 \r
1047                 // Krugle: IE normalizes innerHTML to <pre>, breaking whitespaces.\r
1048                 if ( CKEDITOR.env.ie )\r
1049                 {\r
1050                         var temp = block.getDocument().createElement( 'div' );\r
1051                         temp.append( newBlock );\r
1052                         newBlock.$.outerHTML =  '<pre>' + preHtml + '</pre>';\r
1053                         newBlock = temp.getFirst().remove();\r
1054                 }\r
1055                 else\r
1056                         newBlock.setHtml( preHtml );\r
1057 \r
1058                 return newBlock;\r
1059         }\r
1060 \r
1061         // Removes a style from an element itself, don't care about its subtree.\r
1062         function removeFromElement( style, element )\r
1063         {\r
1064                 var def = style._.definition,\r
1065                         attributes = CKEDITOR.tools.extend( {}, def.attributes, getOverrides( style )[ element.getName() ] ),\r
1066                         styles = def.styles,\r
1067                         // If the style is only about the element itself, we have to remove the element.\r
1068                         removeEmpty = CKEDITOR.tools.isEmpty( attributes ) && CKEDITOR.tools.isEmpty( styles );\r
1069 \r
1070                 // Remove definition attributes/style from the elemnt.\r
1071                 for ( var attName in attributes )\r
1072                 {\r
1073                         // The 'class' element value must match (#1318).\r
1074                         if ( ( attName == 'class' || style._.definition.fullMatch )\r
1075                                 && element.getAttribute( attName ) != normalizeProperty( attName, attributes[ attName ] ) )\r
1076                                 continue;\r
1077                         removeEmpty = element.hasAttribute( attName );\r
1078                         element.removeAttribute( attName );\r
1079                 }\r
1080 \r
1081                 for ( var styleName in styles )\r
1082                 {\r
1083                         // Full match style insist on having fully equivalence. (#5018)\r
1084                         if ( style._.definition.fullMatch\r
1085                                 && element.getStyle( styleName ) != normalizeProperty( styleName, styles[ styleName ], true ) )\r
1086                                 continue;\r
1087 \r
1088                         removeEmpty = removeEmpty || !!element.getStyle( styleName );\r
1089                         element.removeStyle( styleName );\r
1090                 }\r
1091 \r
1092                 removeEmpty && removeNoAttribsElement( element );\r
1093         }\r
1094 \r
1095         // Removes a style from inside an element.\r
1096         function removeFromInsideElement( style, element )\r
1097         {\r
1098                 var def = style._.definition,\r
1099                         attribs = def.attributes,\r
1100                         styles = def.styles,\r
1101                         overrides = getOverrides( style );\r
1102 \r
1103                 var innerElements = element.getElementsByTag( style.element );\r
1104 \r
1105                 for ( var i = innerElements.count(); --i >= 0 ; )\r
1106                         removeFromElement( style,  innerElements.getItem( i ) );\r
1107 \r
1108                 // Now remove any other element with different name that is\r
1109                 // defined to be overriden.\r
1110                 for ( var overrideElement in overrides )\r
1111                 {\r
1112                         if ( overrideElement != style.element )\r
1113                         {\r
1114                                 innerElements = element.getElementsByTag( overrideElement ) ;\r
1115                                 for ( i = innerElements.count() - 1 ; i >= 0 ; i-- )\r
1116                                 {\r
1117                                         var innerElement = innerElements.getItem( i );\r
1118                                         removeOverrides( innerElement, overrides[ overrideElement ] ) ;\r
1119                                 }\r
1120                         }\r
1121                 }\r
1122 \r
1123         }\r
1124 \r
1125         /**\r
1126          *  Remove overriding styles/attributes from the specific element.\r
1127          *  Note: Remove the element if no attributes remain.\r
1128          * @param {Object} element\r
1129          * @param {Object} overrides\r
1130          */\r
1131         function removeOverrides( element, overrides )\r
1132         {\r
1133                 var attributes = overrides && overrides.attributes ;\r
1134 \r
1135                 if ( attributes )\r
1136                 {\r
1137                         for ( var i = 0 ; i < attributes.length ; i++ )\r
1138                         {\r
1139                                 var attName = attributes[i][0], actualAttrValue ;\r
1140 \r
1141                                 if ( ( actualAttrValue = element.getAttribute( attName ) ) )\r
1142                                 {\r
1143                                         var attValue = attributes[i][1] ;\r
1144 \r
1145                                         // Remove the attribute if:\r
1146                                         //    - The override definition value is null ;\r
1147                                         //    - The override definition valie is a string that\r
1148                                         //      matches the attribute value exactly.\r
1149                                         //    - The override definition value is a regex that\r
1150                                         //      has matches in the attribute value.\r
1151                                         if ( attValue === null ||\r
1152                                                         ( attValue.test && attValue.test( actualAttrValue ) ) ||\r
1153                                                         ( typeof attValue == 'string' && actualAttrValue == attValue ) )\r
1154                                                 element.removeAttribute( attName ) ;\r
1155                                 }\r
1156                         }\r
1157                 }\r
1158 \r
1159                 removeNoAttribsElement( element );\r
1160         }\r
1161 \r
1162         // If the element has no more attributes, remove it.\r
1163         function removeNoAttribsElement( element )\r
1164         {\r
1165                 // If no more attributes remained in the element, remove it,\r
1166                 // leaving its children.\r
1167                 if ( !element.hasAttributes() )\r
1168                 {\r
1169                         // Removing elements may open points where merging is possible,\r
1170                         // so let's cache the first and last nodes for later checking.\r
1171                         var firstChild  = element.getFirst();\r
1172                         var lastChild   = element.getLast();\r
1173 \r
1174                         element.remove( true );\r
1175 \r
1176                         if ( firstChild )\r
1177                         {\r
1178                                 // Check the cached nodes for merging.\r
1179                                 firstChild.type == CKEDITOR.NODE_ELEMENT && firstChild.mergeSiblings();\r
1180 \r
1181                                 if ( lastChild && !firstChild.equals( lastChild )\r
1182                                         && lastChild.type == CKEDITOR.NODE_ELEMENT  )\r
1183                                         lastChild.mergeSiblings();\r
1184                         }\r
1185                 }\r
1186         }\r
1187 \r
1188         function getElement( style, targetDocument, element )\r
1189         {\r
1190                 var el;\r
1191 \r
1192                 var def = style._.definition;\r
1193 \r
1194                 var elementName = style.element;\r
1195 \r
1196                 // The "*" element name will always be a span for this function.\r
1197                 if ( elementName == '*' )\r
1198                         elementName = 'span';\r
1199 \r
1200                 // Create the element.\r
1201                 el = new CKEDITOR.dom.element( elementName, targetDocument );\r
1202 \r
1203                 // #6226: attributes should be copied before the new ones are applied\r
1204                 if ( element )\r
1205                         element.copyAttributes( el );\r
1206 \r
1207                 return setupElement( el, style );\r
1208         }\r
1209 \r
1210         function setupElement( el, style )\r
1211         {\r
1212                 var def = style._.definition;\r
1213                 var attributes = def.attributes;\r
1214                 var styles = CKEDITOR.style.getStyleText( def );\r
1215 \r
1216                 // Assign all defined attributes.\r
1217                 if ( attributes )\r
1218                 {\r
1219                         for ( var att in attributes )\r
1220                         {\r
1221                                 el.setAttribute( att, attributes[ att ] );\r
1222                         }\r
1223                 }\r
1224 \r
1225                 // Assign all defined styles.\r
1226                 if( styles )\r
1227                         el.setAttribute( 'style', styles );\r
1228 \r
1229                 return el;\r
1230         }\r
1231 \r
1232         var varRegex = /#\((.+?)\)/g;\r
1233         function replaceVariables( list, variablesValues )\r
1234         {\r
1235                 for ( var item in list )\r
1236                 {\r
1237                         list[ item ] = list[ item ].replace( varRegex, function( match, varName )\r
1238                                 {\r
1239                                         return variablesValues[ varName ];\r
1240                                 });\r
1241                 }\r
1242         }\r
1243 \r
1244 \r
1245         // Returns an object that can be used for style matching comparison.\r
1246         // Attributes names and values are all lowercased, and the styles get\r
1247         // merged with the style attribute.\r
1248         function getAttributesForComparison( styleDefinition )\r
1249         {\r
1250                 // If we have already computed it, just return it.\r
1251                 var attribs = styleDefinition._AC;\r
1252                 if ( attribs )\r
1253                         return attribs;\r
1254 \r
1255                 attribs = {};\r
1256 \r
1257                 var length = 0;\r
1258 \r
1259                 // Loop through all defined attributes.\r
1260                 var styleAttribs = styleDefinition.attributes;\r
1261                 if ( styleAttribs )\r
1262                 {\r
1263                         for ( var styleAtt in styleAttribs )\r
1264                         {\r
1265                                 length++;\r
1266                                 attribs[ styleAtt ] = styleAttribs[ styleAtt ];\r
1267                         }\r
1268                 }\r
1269 \r
1270                 // Includes the style definitions.\r
1271                 var styleText = CKEDITOR.style.getStyleText( styleDefinition );\r
1272                 if ( styleText )\r
1273                 {\r
1274                         if ( !attribs[ 'style' ] )\r
1275                                 length++;\r
1276                         attribs[ 'style' ] = styleText;\r
1277                 }\r
1278 \r
1279                 // Appends the "length" information to the object.\r
1280                 attribs._length = length;\r
1281 \r
1282                 // Return it, saving it to the next request.\r
1283                 return ( styleDefinition._AC = attribs );\r
1284         }\r
1285 \r
1286         /**\r
1287          * Get the the collection used to compare the elements and attributes,\r
1288          * defined in this style overrides, with other element. All information in\r
1289          * it is lowercased.\r
1290          * @param {CKEDITOR.style} style\r
1291          */\r
1292         function getOverrides( style )\r
1293         {\r
1294                 if ( style._.overrides )\r
1295                         return style._.overrides;\r
1296 \r
1297                 var overrides = ( style._.overrides = {} ),\r
1298                         definition = style._.definition.overrides;\r
1299 \r
1300                 if ( definition )\r
1301                 {\r
1302                         // The override description can be a string, object or array.\r
1303                         // Internally, well handle arrays only, so transform it if needed.\r
1304                         if ( !CKEDITOR.tools.isArray( definition ) )\r
1305                                 definition = [ definition ];\r
1306 \r
1307                         // Loop through all override definitions.\r
1308                         for ( var i = 0 ; i < definition.length ; i++ )\r
1309                         {\r
1310                                 var override = definition[i];\r
1311                                 var elementName;\r
1312                                 var overrideEl;\r
1313                                 var attrs;\r
1314 \r
1315                                 // If can be a string with the element name.\r
1316                                 if ( typeof override == 'string' )\r
1317                                         elementName = override.toLowerCase();\r
1318                                 // Or an object.\r
1319                                 else\r
1320                                 {\r
1321                                         elementName = override.element ? override.element.toLowerCase() : style.element;\r
1322                                         attrs = override.attributes;\r
1323                                 }\r
1324 \r
1325                                 // We can have more than one override definition for the same\r
1326                                 // element name, so we attempt to simply append information to\r
1327                                 // it if it already exists.\r
1328                                 overrideEl = overrides[ elementName ] || ( overrides[ elementName ] = {} );\r
1329 \r
1330                                 if ( attrs )\r
1331                                 {\r
1332                                         // The returning attributes list is an array, because we\r
1333                                         // could have different override definitions for the same\r
1334                                         // attribute name.\r
1335                                         var overrideAttrs = ( overrideEl.attributes = overrideEl.attributes || new Array() );\r
1336                                         for ( var attName in attrs )\r
1337                                         {\r
1338                                                 // Each item in the attributes array is also an array,\r
1339                                                 // where [0] is the attribute name and [1] is the\r
1340                                                 // override value.\r
1341                                                 overrideAttrs.push( [ attName.toLowerCase(), attrs[ attName ] ] );\r
1342                                         }\r
1343                                 }\r
1344                         }\r
1345                 }\r
1346 \r
1347                 return overrides;\r
1348         }\r
1349 \r
1350         // Make the comparison of attribute value easier by standardizing it.\r
1351         function normalizeProperty( name, value, isStyle )\r
1352         {\r
1353                 var temp = new CKEDITOR.dom.element( 'span' );\r
1354                 temp [ isStyle ? 'setStyle' : 'setAttribute' ]( name, value );\r
1355                 return temp[ isStyle ? 'getStyle' : 'getAttribute' ]( name );\r
1356         }\r
1357 \r
1358         // Make the comparison of style text easier by standardizing it.\r
1359         function normalizeCssText( unparsedCssText, nativeNormalize )\r
1360         {\r
1361                 var styleText;\r
1362                 if ( nativeNormalize !== false )\r
1363                 {\r
1364                         // Injects the style in a temporary span object, so the browser parses it,\r
1365                         // retrieving its final format.\r
1366                         var temp = new CKEDITOR.dom.element( 'span' );\r
1367                         temp.setAttribute( 'style', unparsedCssText );\r
1368                         styleText = temp.getAttribute( 'style' ) || '';\r
1369                 }\r
1370                 else\r
1371                         styleText = unparsedCssText;\r
1372 \r
1373                 // Shrinking white-spaces around colon and semi-colon (#4147).\r
1374                 // Compensate tail semi-colon.\r
1375                 return styleText.replace( /\s*([;:])\s*/, '$1' )\r
1376                                                          .replace( /([^\s;])$/, '$1;')\r
1377                                                         // Trimming spaces after comma(#4107),\r
1378                                                         // remove quotations(#6403),\r
1379                                                         // mostly for differences on "font-family".\r
1380                                                          .replace( /,\s+/g, ',' )\r
1381                                                          .replace( /\"/g,'' )\r
1382                                                          .toLowerCase();\r
1383         }\r
1384 \r
1385         // Turn inline style text properties into one hash.\r
1386         function parseStyleText( styleText )\r
1387         {\r
1388                 var retval = {};\r
1389                 styleText\r
1390                    .replace( /&quot;/g, '"' )\r
1391                    .replace( /\s*([^ :;]+)\s*:\s*([^;]+)\s*(?=;|$)/g, function( match, name, value )\r
1392                 {\r
1393                         retval[ name ] = value;\r
1394                 } );\r
1395                 return retval;\r
1396         }\r
1397 \r
1398         /**\r
1399          * Compare two bunch of styles, with the speciality that value 'inherit'\r
1400          * is treated as a wildcard which will match any value.\r
1401          * @param {Object|String} source\r
1402          * @param {Object|String} target\r
1403          */\r
1404         function compareCssText( source, target )\r
1405         {\r
1406                 typeof source == 'string' && ( source = parseStyleText( source ) );\r
1407                 typeof target == 'string' && ( target = parseStyleText( target ) );\r
1408                 for( var name in source )\r
1409                 {\r
1410                         if ( !( name in target &&\r
1411                                         ( target[ name ] == source[ name ]\r
1412                                                 || source[ name ] == 'inherit'\r
1413                                                 || target[ name ] == 'inherit' ) ) )\r
1414                         {\r
1415                                 return false;\r
1416                         }\r
1417                 }\r
1418                 return true;\r
1419         }\r
1420 \r
1421         function applyStyle( document, remove )\r
1422         {\r
1423                 var selection = document.getSelection(),\r
1424                         // Bookmark the range so we can re-select it after processing.\r
1425                         bookmarks = selection.createBookmarks( 1 ),\r
1426                         ranges = selection.getRanges(),\r
1427                         func = remove ? this.removeFromRange : this.applyToRange,\r
1428                         range;\r
1429 \r
1430                 var iterator = ranges.createIterator();\r
1431                 while ( ( range = iterator.getNextRange() ) )\r
1432                         func.call( this, range );\r
1433 \r
1434                 if ( bookmarks.length == 1 && bookmarks[0].collapsed )\r
1435                 {\r
1436                         selection.selectRanges( ranges );\r
1437                         document.getById( bookmarks[ 0 ].startNode ).remove();\r
1438                 }\r
1439                 else\r
1440                         selection.selectBookmarks( bookmarks );\r
1441         }\r
1442 })();\r
1443 \r
1444 CKEDITOR.styleCommand = function( style )\r
1445 {\r
1446         this.style = style;\r
1447 };\r
1448 \r
1449 CKEDITOR.styleCommand.prototype.exec = function( editor )\r
1450 {\r
1451         editor.focus();\r
1452 \r
1453         var doc = editor.document;\r
1454 \r
1455         if ( doc )\r
1456         {\r
1457                 if ( this.state == CKEDITOR.TRISTATE_OFF )\r
1458                         this.style.apply( doc );\r
1459                 else if ( this.state == CKEDITOR.TRISTATE_ON )\r
1460                         this.style.remove( doc );\r
1461         }\r
1462 \r
1463         return !!doc;\r
1464 };\r
1465 \r
1466 CKEDITOR.stylesSet = new CKEDITOR.resourceManager( '', 'stylesSet' );\r
1467 \r
1468 // Backward compatibility (#5025).\r
1469 CKEDITOR.addStylesSet = CKEDITOR.tools.bind( CKEDITOR.stylesSet.add, CKEDITOR.stylesSet );\r
1470 CKEDITOR.loadStylesSet = function( name, url, callback )\r
1471         {\r
1472                 CKEDITOR.stylesSet.addExternal( name, url, '' );\r
1473                 CKEDITOR.stylesSet.load( name, callback );\r
1474         };\r
1475 \r
1476 \r
1477 /**\r
1478  * Gets the current styleSet for this instance\r
1479  * @param {Function} callback The function to be called with the styles data.\r
1480  * @example\r
1481  * editor.getStylesSet( function( stylesDefinitions ) {} );\r
1482  */\r
1483 CKEDITOR.editor.prototype.getStylesSet = function( callback )\r
1484 {\r
1485         if ( !this._.stylesDefinitions )\r
1486         {\r
1487                 var editor = this,\r
1488                         // Respect the backwards compatible definition entry\r
1489                         configStyleSet = editor.config.stylesCombo_stylesSet || editor.config.stylesSet || 'default';\r
1490 \r
1491                 // #5352 Allow to define the styles directly in the config object\r
1492                 if ( configStyleSet instanceof Array )\r
1493                 {\r
1494                         editor._.stylesDefinitions = configStyleSet;\r
1495                         callback( configStyleSet );\r
1496                         return;\r
1497                 }\r
1498 \r
1499                 var     partsStylesSet = configStyleSet.split( ':' ),\r
1500                         styleSetName = partsStylesSet[ 0 ],\r
1501                         externalPath = partsStylesSet[ 1 ],\r
1502                         pluginPath = CKEDITOR.plugins.registered.styles.path;\r
1503 \r
1504                 CKEDITOR.stylesSet.addExternal( styleSetName,\r
1505                                 externalPath ?\r
1506                                         partsStylesSet.slice( 1 ).join( ':' ) :\r
1507                                         pluginPath + 'styles/' + styleSetName + '.js', '' );\r
1508 \r
1509                 CKEDITOR.stylesSet.load( styleSetName, function( stylesSet )\r
1510                         {\r
1511                                 editor._.stylesDefinitions = stylesSet[ styleSetName ];\r
1512                                 callback( editor._.stylesDefinitions );\r
1513                         } ) ;\r
1514         }\r
1515         else\r
1516                 callback( this._.stylesDefinitions );\r
1517 };\r
1518 \r
1519 /**\r
1520  * Indicates that fully selected read-only elements will be included when\r
1521  * applying the style (for inline styles only).\r
1522  * @name CKEDITOR.style.includeReadonly\r
1523  * @type Boolean\r
1524  * @default false\r
1525  * @since 3.5\r
1526  */\r
1527 \r
1528  /**\r
1529   * Disables inline styling on read-only elements.\r
1530   * @name CKEDITOR.config.disableReadonlyStyling\r
1531   * @type Boolean\r
1532   * @default false\r
1533   * @since 3.5\r
1534   */\r
1535 \r
1536 /**\r
1537  * The "styles definition set" to use in the editor. They will be used in the\r
1538  * styles combo and the Style selector of the div container. <br>\r
1539  * The styles may be defined in the page containing the editor, or can be\r
1540  * loaded on demand from an external file. In the second case, if this setting\r
1541  * contains only a name, the styles definition file will be loaded from the\r
1542  * "styles" folder inside the styles plugin folder.\r
1543  * Otherwise, this setting has the "name:url" syntax, making it\r
1544  * possible to set the URL from which loading the styles file.<br>\r
1545  * Previously this setting was available as config.stylesCombo_stylesSet<br>\r
1546  * @name CKEDITOR.config.stylesSet\r
1547  * @type String|Array\r
1548  * @default 'default'\r
1549  * @since 3.3\r
1550  * @example\r
1551  * // Load from the styles' styles folder (mystyles.js file).\r
1552  * config.stylesSet = 'mystyles';\r
1553  * @example\r
1554  * // Load from a relative URL.\r
1555  * config.stylesSet = 'mystyles:/editorstyles/styles.js';\r
1556  * @example\r
1557  * // Load from a full URL.\r
1558  * config.stylesSet = 'mystyles:http://www.example.com/editorstyles/styles.js';\r
1559  * @example\r
1560  * // Load from a list of definitions.\r
1561  * config.stylesSet = [\r
1562  *  { name : 'Strong Emphasis', element : 'strong' },\r
1563  * { name : 'Emphasis', element : 'em' }, ... ];\r
1564  */\r