_source/plugins/htmldataprocessor/plugin.js

   1 /*\r
   2 Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.\r
   3 For licensing, see LICENSE.html or http://ckeditor.com/license\r
   4 */\r
   5 \r
   6 (function()\r
   7 {\r
   8         // Regex to scan for &nbsp; at the end of blocks, which are actually placeholders.\r
   9         // Safari transforms the &nbsp; to \xa0. (#4172)\r
  10         var tailNbspRegex = /^[\t\r\n ]*(?:&nbsp;|\xa0)$/;\r
  11 \r
  12         var protectedSourceMarker = '{cke_protected}';\r
  13 \r
  14         // Return the last non-space child node of the block (#4344).\r
  15         function lastNoneSpaceChild( block )\r
  16         {\r
  17                 var lastIndex = block.children.length,\r
  18                         last = block.children[ lastIndex - 1 ];\r
  19                 while (  last && last.type == CKEDITOR.NODE_TEXT && !CKEDITOR.tools.trim( last.value ) )\r
  20                         last = block.children[ --lastIndex ];\r
  21                 return last;\r
  22         }\r
  23 \r
  24         function trimFillers( block, fromSource )\r
  25         {\r
  26                 // If the current node is a block, and if we're converting from source or\r
  27                 // we're not in IE then search for and remove any tailing BR node.\r
  28                 //\r
  29                 // Also, any &nbsp; at the end of blocks are fillers, remove them as well.\r
  30                 // (#2886)\r
  31                 var children = block.children, lastChild = lastNoneSpaceChild( block );\r
  32                 if ( lastChild )\r
  33                 {\r
  34                         if ( ( fromSource || !CKEDITOR.env.ie ) && lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br' )\r
  35                                 children.pop();\r
  36                         if ( lastChild.type == CKEDITOR.NODE_TEXT && tailNbspRegex.test( lastChild.value ) )\r
  37                                 children.pop();\r
  38                 }\r
  39         }\r
  40 \r
  41         function blockNeedsExtension( block, fromSource, extendEmptyBlock )\r
  42         {\r
  43                 if( !fromSource && ( !extendEmptyBlock ||\r
  44                         typeof extendEmptyBlock == 'function' && ( extendEmptyBlock( block ) === false ) ) )\r
  45                         return false;\r
  46 \r
  47         // 1. For IE version >=8,  empty blocks are displayed correctly themself in wysiwiyg;\r
  48         // 2. For the rest, at least table cell and list item need no filler space.\r
  49         // (#6248)\r
  50         if ( fromSource && CKEDITOR.env.ie &&\r
  51                 ( document.documentMode > 7\r
  52                 || block.name in CKEDITOR.dtd.tr\r
  53                 || block.name in CKEDITOR.dtd.$listItem ) )\r
  54             return false;\r
  55 \r
  56                 var lastChild = lastNoneSpaceChild( block );\r
  57 \r
  58                 return !lastChild || lastChild &&\r
  59                                 ( lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br'\r
  60                                 // Some of the controls in form needs extension too,\r
  61                                 // to move cursor at the end of the form. (#4791)\r
  62                                 || block.name == 'form' && lastChild.name == 'input' );\r
  63         }\r
  64 \r
  65         function getBlockExtension( isOutput, emptyBlockFiller )\r
  66         {\r
  67                 return function( node )\r
  68                 {\r
  69                         trimFillers( node, !isOutput );\r
  70 \r
  71                         if ( blockNeedsExtension( node, !isOutput, emptyBlockFiller ) )\r
  72                         {\r
  73                                 if ( isOutput || CKEDITOR.env.ie )\r
  74                                         node.add( new CKEDITOR.htmlParser.text( '\xa0' ) );\r
  75                                 else\r
  76                                         node.add( new CKEDITOR.htmlParser.element( 'br', {} ) );\r
  77                         }\r
  78                 };\r
  79         }\r
  80 \r
  81         var dtd = CKEDITOR.dtd;\r
  82 \r
  83         // Define orders of table elements.\r
  84         var tableOrder = [ 'caption', 'colgroup', 'col', 'thead', 'tfoot', 'tbody' ];\r
  85 \r
  86         // Find out the list of block-like tags that can contain <br>.\r
  87         var blockLikeTags = CKEDITOR.tools.extend( {}, dtd.$block, dtd.$listItem, dtd.$tableContent );\r
  88         for ( var i in blockLikeTags )\r
  89         {\r
  90                 if ( ! ( 'br' in dtd[i] ) )\r
  91                         delete blockLikeTags[i];\r
  92         }\r
  93         // We just avoid filler in <pre> right now.\r
  94         // TODO: Support filler for <pre>, line break is also occupy line height.\r
  95         delete blockLikeTags.pre;\r
  96         var defaultDataFilterRules =\r
  97         {\r
  98                 elements : {\r
  99                         a : function( element )\r
 100                         {\r
 101                                 var attrs = element.attributes;\r
 102                                 if ( attrs && attrs[ 'data-cke-saved-name' ] )\r
 103                                         attrs[ 'class' ] = ( attrs[ 'class' ] ? attrs[ 'class' ] + ' ' : '' ) + 'cke_anchor';\r
 104                         }\r
 105                 },\r
 106                 attributeNames :\r
 107                 [\r
 108                         // Event attributes (onXYZ) must not be directly set. They can become\r
 109                         // active in the editing area (IE|WebKit).\r
 110                         [ ( /^on/ ), 'data-cke-pa-on' ]\r
 111                 ]\r
 112         };\r
 113 \r
 114         var defaultDataBlockFilterRules = { elements : {} };\r
 115 \r
 116         for ( i in blockLikeTags )\r
 117                 defaultDataBlockFilterRules.elements[ i ] = getBlockExtension();\r
 118 \r
 119         var defaultHtmlFilterRules =\r
 120                 {\r
 121                         elementNames :\r
 122                         [\r
 123                                 // Remove the "cke:" namespace prefix.\r
 124                                 [ ( /^cke:/ ), '' ],\r
 125 \r
 126                                 // Ignore <?xml:namespace> tags.\r
 127                                 [ ( /^\?xml:namespace$/ ), '' ]\r
 128                         ],\r
 129 \r
 130                         attributeNames :\r
 131                         [\r
 132                                 // Attributes saved for changes and protected attributes.\r
 133                                 [ ( /^data-cke-(saved|pa)-/ ), '' ],\r
 134 \r
 135                                 // All "data-cke-" attributes are to be ignored.\r
 136                                 [ ( /^data-cke-.*/ ), '' ],\r
 137 \r
 138                                 [ 'hidefocus', '' ]\r
 139                         ],\r
 140 \r
 141                         elements :\r
 142                         {\r
 143                                 $ : function( element )\r
 144                                 {\r
 145                                         var attribs = element.attributes;\r
 146 \r
 147                                         if ( attribs )\r
 148                                         {\r
 149                                                 // Elements marked as temporary are to be ignored.\r
 150                                                 if ( attribs[ 'data-cke-temp' ] )\r
 151                                                         return false;\r
 152 \r
 153                                                 // Remove duplicated attributes - #3789.\r
 154                                                 var attributeNames = [ 'name', 'href', 'src' ],\r
 155                                                         savedAttributeName;\r
 156                                                 for ( var i = 0 ; i < attributeNames.length ; i++ )\r
 157                                                 {\r
 158                                                         savedAttributeName = 'data-cke-saved-' + attributeNames[ i ];\r
 159                                                         savedAttributeName in attribs && ( delete attribs[ attributeNames[ i ] ] );\r
 160                                                 }\r
 161                                         }\r
 162 \r
 163                                         return element;\r
 164                                 },\r
 165 \r
 166                                 // The contents of table should be in correct order (#4809).\r
 167                                 table : function( element )\r
 168                                 {\r
 169                                         var children = element.children;\r
 170                                         children.sort( function ( node1, node2 )\r
 171                                                                    {\r
 172                                                                            return node1.type == CKEDITOR.NODE_ELEMENT && node2.type == node1.type ?\r
 173                                                                                         CKEDITOR.tools.indexOf( tableOrder, node1.name )  > CKEDITOR.tools.indexOf( tableOrder, node2.name ) ? 1 : -1 : 0;\r
 174                                                                    } );\r
 175                                 },\r
 176 \r
 177                                 embed : function( element )\r
 178                                 {\r
 179                                         var parent = element.parent;\r
 180 \r
 181                                         // If the <embed> is child of a <object>, copy the width\r
 182                                         // and height attributes from it.\r
 183                                         if ( parent && parent.name == 'object' )\r
 184                                         {\r
 185                                                 var parentWidth = parent.attributes.width,\r
 186                                                         parentHeight = parent.attributes.height;\r
 187                                                 parentWidth && ( element.attributes.width = parentWidth );\r
 188                                                 parentHeight && ( element.attributes.height = parentHeight );\r
 189                                         }\r
 190                                 },\r
 191                                 // Restore param elements into self-closing.\r
 192                                 param : function( param )\r
 193                                 {\r
 194                                         param.children = [];\r
 195                                         param.isEmpty = true;\r
 196                                         return param;\r
 197                                 },\r
 198 \r
 199                                 // Remove empty link but not empty anchor.(#3829)\r
 200                                 a : function( element )\r
 201                                 {\r
 202                                         if ( !( element.children.length ||\r
 203                                                         element.attributes.name ||\r
 204                                                         element.attributes[ 'data-cke-saved-name' ] ) )\r
 205                                         {\r
 206                                                 return false;\r
 207                                         }\r
 208                                 },\r
 209 \r
 210                                 // Remove dummy span in webkit.\r
 211                                 span: function( element )\r
 212                                 {\r
 213                                         if ( element.attributes[ 'class' ] == 'Apple-style-span' )\r
 214                                                 delete element.name;\r
 215                                 },\r
 216 \r
 217                                 // Empty <pre> in IE is reported with filler node (&nbsp;).\r
 218                                 pre : function( element ) { CKEDITOR.env.ie && trimFillers( element ); },\r
 219 \r
 220                                 html : function( element )\r
 221                                 {\r
 222                                         delete element.attributes.contenteditable;\r
 223                                         delete element.attributes[ 'class' ];\r
 224                                 },\r
 225 \r
 226                                 body : function( element )\r
 227                                 {\r
 228                                         delete element.attributes.spellcheck;\r
 229                                         delete element.attributes.contenteditable;\r
 230                                 },\r
 231 \r
 232                                 style : function( element )\r
 233                                 {\r
 234                                         var child = element.children[ 0 ];\r
 235                                         child && child.value && ( child.value = CKEDITOR.tools.trim( child.value ));\r
 236 \r
 237                                         if ( !element.attributes.type )\r
 238                                                 element.attributes.type = 'text/css';\r
 239                                 },\r
 240 \r
 241                                 title : function( element )\r
 242                                 {\r
 243                                         var titleText = element.children[ 0 ];\r
 244                                         titleText && ( titleText.value = element.attributes[ 'data-cke-title' ] || '' );\r
 245                                 }\r
 246                         },\r
 247 \r
 248                         attributes :\r
 249                         {\r
 250                                 'class' : function( value, element )\r
 251                                 {\r
 252                                         // Remove all class names starting with "cke_".\r
 253                                         return CKEDITOR.tools.ltrim( value.replace( /(?:^|\s+)cke_[^\s]*/g, '' ) ) || false;\r
 254                                 }\r
 255                         }\r
 256                 };\r
 257 \r
 258         if ( CKEDITOR.env.ie )\r
 259         {\r
 260                 // IE outputs style attribute in capital letters. We should convert\r
 261                 // them back to lower case, while not hurting the values (#5930)\r
 262                 defaultHtmlFilterRules.attributes.style = function( value, element )\r
 263                 {\r
 264                         return value.replace( /(^|;)([^\:]+)/g, function( match )\r
 265                                 {\r
 266                                         return match.toLowerCase();\r
 267                                 });\r
 268                 };\r
 269         }\r
 270 \r
 271         function protectReadOnly( element )\r
 272         {\r
 273                 var attrs = element.attributes;\r
 274 \r
 275                 // We should flag that the element was locked by our code so\r
 276                 // it'll be editable by the editor functions (#6046).\r
 277                 if ( attrs.contenteditable != "false" )\r
 278                         attrs[ 'data-cke-editable' ] = attrs.contenteditable ? 'true' : 1;\r
 279 \r
 280                 attrs.contenteditable = "false";\r
 281         }\r
 282         function unprotectReadyOnly( element )\r
 283         {\r
 284                 var attrs = element.attributes;\r
 285                 switch( attrs[ 'data-cke-editable' ] )\r
 286                 {\r
 287                         case 'true':    attrs.contenteditable = 'true'; break;\r
 288                         case '1':               delete attrs.contenteditable;   break;\r
 289                 }\r
 290         }\r
 291         // Disable form elements editing mode provided by some browers. (#5746)\r
 292         for ( i in { input : 1, textarea : 1 } )\r
 293         {\r
 294                 defaultDataFilterRules.elements[ i ] = protectReadOnly;\r
 295                 defaultHtmlFilterRules.elements[ i ] = unprotectReadyOnly;\r
 296         }\r
 297 \r
 298         var protectElementRegex = /<(a|area|img|input)\b([^>]*)>/gi,\r
 299                 protectAttributeRegex = /\b(href|src|name)\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|(?:[^ "'>]+))/gi;\r
 300 \r
 301         var protectElementsRegex = /(?:<style(?=[ >])[^>]*>[\s\S]*<\/style>)|(?:<(:?link|meta|base)[^>]*>)/gi,\r
 302                 encodedElementsRegex = /<cke:encoded>([^<]*)<\/cke:encoded>/gi;\r
 303 \r
 304         var protectElementNamesRegex = /(<\/?)((?:object|embed|param|html|body|head|title)[^>]*>)/gi,\r
 305                 unprotectElementNamesRegex = /(<\/?)cke:((?:html|body|head|title)[^>]*>)/gi;\r
 306 \r
 307         var protectSelfClosingRegex = /<cke:(param|embed)([^>]*?)\/?>(?!\s*<\/cke:\1)/gi;\r
 308 \r
 309         function protectAttributes( html )\r
 310         {\r
 311                 return html.replace( protectElementRegex, function( element, tag, attributes )\r
 312                 {\r
 313                         return '<' +  tag + attributes.replace( protectAttributeRegex, function( fullAttr, attrName )\r
 314                         {\r
 315                                 // We should not rewrite the existed protected attributes, e.g. clipboard content from editor. (#5218)\r
 316                                 if ( attributes.indexOf( 'data-cke-saved-' + attrName ) == -1 )\r
 317                                         return ' data-cke-saved-' + fullAttr + ' ' + fullAttr;\r
 318 \r
 319                                 return fullAttr;\r
 320                         }) + '>';\r
 321                 });\r
 322         }\r
 323 \r
 324         function protectElements( html )\r
 325         {\r
 326                 return html.replace( protectElementsRegex, function( match )\r
 327                         {\r
 328                                 return '<cke:encoded>' + encodeURIComponent( match ) + '</cke:encoded>';\r
 329                         });\r
 330         }\r
 331 \r
 332         function unprotectElements( html )\r
 333         {\r
 334                 return html.replace( encodedElementsRegex, function( match, encoded )\r
 335                         {\r
 336                                 return decodeURIComponent( encoded );\r
 337                         });\r
 338         }\r
 339 \r
 340         function protectElementsNames( html )\r
 341         {\r
 342                 return html.replace( protectElementNamesRegex, '$1cke:$2');\r
 343         }\r
 344 \r
 345         function unprotectElementNames( html )\r
 346         {\r
 347                 return html.replace( unprotectElementNamesRegex, '$1$2' );\r
 348         }\r
 349 \r
 350         function protectSelfClosingElements( html )\r
 351         {\r
 352                 return html.replace( protectSelfClosingRegex, '<cke:$1$2></cke:$1>' );\r
 353         }\r
 354 \r
 355         function protectPreFormatted( html )\r
 356         {\r
 357                 return html.replace( /(<pre\b[^>]*>)(\r\n|\n)/g, '$1$2$2' );\r
 358         }\r
 359 \r
 360         function protectRealComments( html )\r
 361         {\r
 362                 return html.replace( /<!--(?!{cke_protected})[\s\S]+?-->/g, function( match )\r
 363                         {\r
 364                                 return '<!--' + protectedSourceMarker +\r
 365                                                 '{C}' +\r
 366                                                 encodeURIComponent( match ).replace( /--/g, '%2D%2D' ) +\r
 367                                                 '-->';\r
 368                         });\r
 369         }\r
 370 \r
 371         function unprotectRealComments( html )\r
 372         {\r
 373                 return html.replace( /<!--\{cke_protected\}\{C\}([\s\S]+?)-->/g, function( match, data )\r
 374                         {\r
 375                                 return decodeURIComponent( data );\r
 376                         });\r
 377         }\r
 378 \r
 379         function unprotectSource( html, editor )\r
 380         {\r
 381                 var store = editor._.dataStore;\r
 382 \r
 383                 return html.replace( /<!--\{cke_protected\}([\s\S]+?)-->/g, function( match, data )\r
 384                         {\r
 385                                 return decodeURIComponent( data );\r
 386                         }).replace( /\{cke_protected_(\d+)\}/g, function( match, id )\r
 387                         {\r
 388                                 return store && store[ id ] || '';\r
 389                         });\r
 390         }\r
 391 \r
 392         function protectSource( data, editor )\r
 393         {\r
 394                 var protectedHtml = [],\r
 395                         protectRegexes = editor.config.protectedSource,\r
 396                         store = editor._.dataStore || ( editor._.dataStore = { id : 1 } ),\r
 397                         tempRegex = /<\!--\{cke_temp(comment)?\}(\d*?)-->/g;\r
 398 \r
 399                 var regexes =\r
 400                         [\r
 401                                 // Script tags will also be forced to be protected, otherwise\r
 402                                 // IE will execute them.\r
 403                                 ( /<script[\s\S]*?<\/script>/gi ),\r
 404 \r
 405                                 // <noscript> tags (get lost in IE and messed up in FF).\r
 406                                 /<noscript[\s\S]*?<\/noscript>/gi\r
 407                         ]\r
 408                         .concat( protectRegexes );\r
 409 \r
 410                 // First of any other protection, we must protect all comments\r
 411                 // to avoid loosing them (of course, IE related).\r
 412                 // Note that we use a different tag for comments, as we need to\r
 413                 // transform them when applying filters.\r
 414                 data = data.replace( (/<!--[\s\S]*?-->/g), function( match )\r
 415                         {\r
 416                                 return  '<!--{cke_tempcomment}' + ( protectedHtml.push( match ) - 1 ) + '-->';\r
 417                         });\r
 418 \r
 419                 for ( var i = 0 ; i < regexes.length ; i++ )\r
 420                 {\r
 421                         data = data.replace( regexes[i], function( match )\r
 422                                 {\r
 423                                         match = match.replace( tempRegex,               // There could be protected source inside another one. (#3869).\r
 424                                                 function( $, isComment, id )\r
 425                                                 {\r
 426                                                         return protectedHtml[ id ];\r
 427                                                 }\r
 428                                         );\r
 429 \r
 430                                         // Avoid protecting over protected, e.g. /\{.*?\}/\r
 431                                         return ( /cke_temp(comment)?/ ).test( match ) ? match\r
 432                                                 : '<!--{cke_temp}' + ( protectedHtml.push( match ) - 1 ) + '-->';\r
 433                                 });\r
 434                 }\r
 435                 data = data.replace( tempRegex, function( $, isComment, id )\r
 436                         {\r
 437                                 return '<!--' + protectedSourceMarker +\r
 438                                                 ( isComment ? '{C}' : '' ) +\r
 439                                                 encodeURIComponent( protectedHtml[ id ] ).replace( /--/g, '%2D%2D' ) +\r
 440                                                 '-->';\r
 441                         }\r
 442                 );\r
 443 \r
 444                 // Different protection pattern is used for those that\r
 445                 // live in attributes to avoid from being HTML encoded.\r
 446                 return data.replace( /(['"]).*?\1/g, function ( match )\r
 447                 {\r
 448                         return match.replace( /<!--\{cke_protected\}([\s\S]+?)-->/g, function( match, data )\r
 449                         {\r
 450                                 store[ store.id ] = decodeURIComponent( data );\r
 451                                 return '{cke_protected_'+ ( store.id++ )  + '}';\r
 452                         });\r
 453                 });\r
 454         }\r
 455 \r
 456         CKEDITOR.plugins.add( 'htmldataprocessor',\r
 457         {\r
 458                 requires : [ 'htmlwriter' ],\r
 459 \r
 460                 init : function( editor )\r
 461                 {\r
 462                         var dataProcessor = editor.dataProcessor = new CKEDITOR.htmlDataProcessor( editor );\r
 463 \r
 464                         dataProcessor.writer.forceSimpleAmpersand = editor.config.forceSimpleAmpersand;\r
 465 \r
 466                         dataProcessor.dataFilter.addRules( defaultDataFilterRules );\r
 467                         dataProcessor.dataFilter.addRules( defaultDataBlockFilterRules );\r
 468                         dataProcessor.htmlFilter.addRules( defaultHtmlFilterRules );\r
 469 \r
 470                         var defaultHtmlBlockFilterRules = { elements : {} };\r
 471                         for ( i in blockLikeTags )\r
 472                                 defaultHtmlBlockFilterRules.elements[ i ] = getBlockExtension( true, editor.config.fillEmptyBlocks );\r
 473 \r
 474                         dataProcessor.htmlFilter.addRules( defaultHtmlBlockFilterRules );\r
 475                 },\r
 476 \r
 477                 onLoad : function()\r
 478                 {\r
 479                         ! ( 'fillEmptyBlocks' in CKEDITOR.config ) && ( CKEDITOR.config.fillEmptyBlocks = 1 );\r
 480                 }\r
 481         });\r
 482 \r
 483         CKEDITOR.htmlDataProcessor = function( editor )\r
 484         {\r
 485                 this.editor = editor;\r
 486 \r
 487                 this.writer = new CKEDITOR.htmlWriter();\r
 488                 this.dataFilter = new CKEDITOR.htmlParser.filter();\r
 489                 this.htmlFilter = new CKEDITOR.htmlParser.filter();\r
 490         };\r
 491 \r
 492         CKEDITOR.htmlDataProcessor.prototype =\r
 493         {\r
 494                 toHtml : function( data, fixForBody )\r
 495                 {\r
 496                         // The source data is already HTML, but we need to clean\r
 497                         // it up and apply the filter.\r
 498 \r
 499                         data = protectSource( data, this.editor );\r
 500 \r
 501                         // Before anything, we must protect the URL attributes as the\r
 502                         // browser may changing them when setting the innerHTML later in\r
 503                         // the code.\r
 504                         data = protectAttributes( data );\r
 505 \r
 506                         // Protect elements than can't be set inside a DIV. E.g. IE removes\r
 507                         // style tags from innerHTML. (#3710)\r
 508                         data = protectElements( data );\r
 509 \r
 510                         // Certain elements has problem to go through DOM operation, protect\r
 511                         // them by prefixing 'cke' namespace. (#3591)\r
 512                         data = protectElementsNames( data );\r
 513 \r
 514                         // All none-IE browsers ignore self-closed custom elements,\r
 515                         // protecting them into open-close. (#3591)\r
 516                         data = protectSelfClosingElements( data );\r
 517 \r
 518                         // Compensate one leading line break after <pre> open as browsers\r
 519                         // eat it up. (#5789)\r
 520                         data = protectPreFormatted( data );\r
 521 \r
 522                         // Call the browser to help us fixing a possibly invalid HTML\r
 523                         // structure.\r
 524                         var div = new CKEDITOR.dom.element( 'div' );\r
 525                         // Add fake character to workaround IE comments bug. (#3801)\r
 526                         div.setHtml( 'a' + data );\r
 527                         data = div.getHtml().substr( 1 );\r
 528 \r
 529                         // Unprotect "some" of the protected elements at this point.\r
 530                         data = unprotectElementNames( data );\r
 531 \r
 532                         data = unprotectElements( data );\r
 533 \r
 534                         // Restore the comments that have been protected, in this way they\r
 535                         // can be properly filtered.\r
 536                         data = unprotectRealComments( data );\r
 537 \r
 538                         // Now use our parser to make further fixes to the structure, as\r
 539                         // well as apply the filter.\r
 540                         var fragment = CKEDITOR.htmlParser.fragment.fromHtml( data, fixForBody ),\r
 541                                 writer = new CKEDITOR.htmlParser.basicWriter();\r
 542 \r
 543                         fragment.writeHtml( writer, this.dataFilter );\r
 544                         data = writer.getHtml( true );\r
 545 \r
 546                         // Protect the real comments again.\r
 547                         data = protectRealComments( data );\r
 548 \r
 549                         return data;\r
 550                 },\r
 551 \r
 552                 toDataFormat : function( html, fixForBody )\r
 553                 {\r
 554                         var writer = this.writer,\r
 555                                 fragment = CKEDITOR.htmlParser.fragment.fromHtml( html, fixForBody );\r
 556 \r
 557                         writer.reset();\r
 558 \r
 559                         fragment.writeHtml( writer, this.htmlFilter );\r
 560 \r
 561                         var data = writer.getHtml( true );\r
 562 \r
 563                         // Restore those non-HTML protected source. (#4475,#4880)\r
 564                         data = unprotectRealComments( data );\r
 565                         data = unprotectSource( data, this.editor );\r
 566 \r
 567                         return data;\r
 568                 }\r
 569         };\r
 570 })();\r
 571 \r
 572 /**\r
 573  * Whether to force using "&" instead of "&amp;amp;" in elements attributes\r
 574  * values, it's not recommended to change this setting for compliance with the\r
 575  * W3C XHTML 1.0 standards (<a href="http://www.w3.org/TR/xhtml1/#C_12">C.12, XHTML 1.0</a>).\r
 576  * @name CKEDITOR.config.forceSimpleAmpersand\r
 577  * @name CKEDITOR.config.forceSimpleAmpersand\r
 578  * @type Boolean\r
 579  * @default false\r
 580  * @example\r
 581  * config.forceSimpleAmpersand = false;\r
 582  */\r
 583 \r
 584 /**\r
 585  * Whether a filler text (non-breaking space entity - &nbsp;) will be inserted into empty block elements in HTML output,\r
 586  * this is used to render block elements properly with line-height; When a function is instead specified,\r
 587  * it'll be passed a {@link CKEDITOR.htmlParser.element} to decide whether adding the filler text\r
 588  * by expecting a boolean return value.\r
 589  * @name CKEDITOR.config.fillEmptyBlocks\r
 590  * @since 3.5\r
 591  * @type Boolean\r
 592  * @default true\r
 593  * @example\r
 594  * config.fillEmptyBlocks = false;      // Prevent filler nodes in all empty blocks.\r
 595  *\r
 596  * // Prevent filler node only in float cleaners.\r
 597  * config.fillEmptyBlocks = function( element )\r
 598  * {\r
 599  *      if ( element.attributes[ 'class' ].indexOf ( 'clear-both' ) != -1 )\r
 600  *              return false;\r
 601  * }\r
 602  */\r